/* ===========================
   Luna — dark consumer AI product
   =========================== */

:root {
    --luna-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    --luna-bg: #0b0b0d;
    --luna-surface: #15161a;
    --luna-surface-2: #1c1d22;
    --luna-elevated: #1a1b1f;
    --luna-sidebar-bg: #0f1014;
    --luna-input-bg: #17181c;
    --luna-border: #25262c;
    --luna-border-strong: #353740;
    --luna-text: #ececef;
    --luna-text-soft: #c5c5cc;
    --luna-muted: #80808a;
    --luna-muted-strong: #9a9aa3;

    --luna-user-bubble: #1f2026;
    --luna-code-bg: #0a0a0e;
    --luna-code-fg: #ececef;

    --luna-accent: #8b5cf6;
    --luna-accent-2: #6366f1;
    --luna-accent-hover: #7c3aed;
    --luna-accent-soft: rgba(139, 92, 246, 0.12);
    --luna-accent-border: rgba(139, 92, 246, 0.28);
    --luna-accent-glow: rgba(139, 92, 246, 0.22);

    --luna-danger: #ef4444;
    --luna-warning: #f59e0b;
    --luna-success: #10b981;

    --luna-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --luna-shadow-md: 0 6px 20px rgba(0, 0, 0, 0.32);
    --luna-shadow-lg: 0 24px 56px rgba(0, 0, 0, 0.5);

    --luna-radius-sm: 8px;
    --luna-radius-md: 12px;
    --luna-radius-lg: 16px;
    --luna-radius-pill: 999px;

    --luna-sidebar-width: 280px;
    --luna-sidebar-collapsed-width: 64px;
    --luna-navbar-height: 56px;
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
    height: 100%;
    color: var(--luna-text);
    font-family: var(--luna-font);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
body { margin: 0; background: var(--luna-bg); }

/* Lock the chat shell on bare-layout pages. Only BODY is position:fixed
   (NOT html) — applying position:fixed to both compounds into weird
   stacking/scroll behavior. html just gets overflow: hidden + height: 100%
   so it acts as a plain locked container.

   Body is pinned to the layout viewport at top:0, height:100%. iOS soft-
   keyboard handling is left entirely to `interactive-widget=resizes-content`
   in the viewport meta. No JS-driven CSS vars, no visualViewport chase —
   every prior JS-bandaid version produced visible jerk because JS reacted
   a frame behind iOS's own keyboard animation. Plain CSS, plain 100%. */
html.luna-locked {
    overflow: hidden;
    overscroll-behavior: none;
    height: 100%;
}
html.luna-locked body {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    overscroll-behavior: none;
}

a { color: var(--luna-text); text-decoration: none; transition: color .15s ease; }
a:hover { color: var(--luna-accent); }

/* Bootstrap utility / scaffold link colors — keep everything on the purple
   theme. Without these the default Identity Manage pages render with the
   stock #0d6efd blue links. */
.text-primary,
.link-primary,
a.text-primary,
a.link-primary { color: var(--luna-accent) !important; }
.link-primary:hover,
a.text-primary:hover,
a.link-primary:hover { color: var(--luna-accent-hover) !important; }
.alert a,
.alert .alert-link {
    color: var(--luna-accent);
    text-decoration: underline;
    text-decoration-color: var(--luna-accent-border);
    text-underline-offset: 3px;
}
.alert a:hover,
.alert .alert-link:hover { color: var(--luna-accent-hover); text-decoration-color: var(--luna-accent); }

/* Bootstrap form-control focus uses --bs-primary by default (blue). Hard-pin
   to the Luna accent for every variant. */
:root {
    --bs-primary: var(--luna-accent);
    --bs-primary-rgb: 139, 92, 246;
    --bs-link-color: var(--luna-text);
    --bs-link-hover-color: var(--luna-accent);
    --bs-link-color-rgb: 236, 236, 239;
    --bs-link-hover-color-rgb: 139, 92, 246;
    --bs-focus-ring-color: var(--luna-accent-soft);
}

/* Nav pills (used inside the default Identity Manage scaffold) */
.nav-pills .nav-link {
    color: var(--luna-text-soft);
    border-radius: var(--luna-radius-sm);
}
.nav-pills .nav-link:hover { background: var(--luna-surface-2); color: var(--luna-text); }
.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
    background: var(--luna-accent-soft);
    color: var(--luna-text);
}

/* ============ Bootstrap overrides ============ */
.card {
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    box-shadow: var(--luna-shadow-sm);
    color: var(--luna-text);
}

.form-control, .form-select {
    background: var(--luna-input-bg);
    color: var(--luna-text);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-sm);
    transition: border-color .15s ease, box-shadow .15s ease;
    padding: .6rem .8rem;
    font-family: inherit;
    font-size: .94rem;
}
/* iOS Safari auto-zooms into any focused form control with font-size < 16px.
   Bump inputs on mobile so login/register/admin forms don't pop the page up
   when the user taps a field. Desktop keeps the .94rem density. */
@media (max-width: 900px) {
    .form-control, .form-select { font-size: 16px; }
}
.form-control::placeholder { color: var(--luna-muted); }
.form-control:focus, .form-select:focus {
    background: var(--luna-input-bg);
    color: var(--luna-text);
    border-color: var(--luna-accent);
    box-shadow: 0 0 0 3px var(--luna-accent-soft);
}
.form-label { color: var(--luna-text-soft); font-size: .88rem; font-weight: 500; margin-bottom: .4rem; }
.form-text { color: var(--luna-muted); font-size: .82rem; margin-top: .35rem; }
.form-check-input:checked { background-color: var(--luna-accent); border-color: var(--luna-accent); }
.form-check-input:focus { border-color: var(--luna-accent); box-shadow: 0 0 0 3px var(--luna-accent-soft); }
.form-floating > .form-control,
.form-floating > .form-select {
    background: var(--luna-input-bg);
    color: var(--luna-text);
    border-color: var(--luna-border);
}
.form-floating > label { color: var(--luna-muted); }

.btn {
    border-radius: var(--luna-radius-sm);
    font-weight: 500;
    font-size: .9rem;
    padding: .55rem 1rem;
    transition: background .15s ease, color .15s ease, border-color .15s ease, box-shadow .2s ease, transform .06s ease;
    font-family: inherit;
    /* Kill Bootstrap's blue focus shadow globally — every variant gets a
       purple ring instead via the focus-visible rule below. */
    --bs-btn-focus-shadow-rgb: 139, 92, 246;
}
.btn:active { transform: translateY(1px); }
.btn:focus, .btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--luna-accent-soft);
}
.btn-check:focus + .btn,
.btn-check:focus-visible + .btn {
    box-shadow: 0 0 0 3px var(--luna-accent-soft);
}
.btn-lg { padding: .75rem 1.4rem; font-size: 1rem; }
.btn-sm { padding: .4rem .8rem; font-size: .85rem; }

.btn-primary {
    background: var(--luna-accent);
    border-color: var(--luna-accent);
    color: #fff;
    font-weight: 500;
}
.btn-primary:hover,
.btn-primary:focus,
.btn-primary:focus-visible,
.btn-primary:active,
.btn-primary.active,
.btn-primary:not(:disabled):not(.disabled):active {
    background: var(--luna-accent-hover);
    border-color: var(--luna-accent-hover);
    color: #fff;
}

.btn-outline-secondary {
    color: var(--luna-text-soft);
    border-color: var(--luna-border-strong);
    background: transparent;
}
.btn-outline-secondary:hover,
.btn-outline-secondary:focus,
.btn-outline-secondary:focus-visible,
.btn-outline-secondary:active,
.btn-outline-secondary.active,
.btn-outline-secondary:not(:disabled):not(.disabled):active {
    background: var(--luna-surface-2);
    color: var(--luna-text);
    border-color: var(--luna-border-strong);
}

.btn-outline-danger {
    color: var(--luna-danger);
    border-color: rgba(239, 68, 68, 0.35);
}
.btn-outline-danger:hover,
.btn-outline-danger:focus,
.btn-outline-danger:focus-visible,
.btn-outline-danger:active,
.btn-outline-danger.active,
.btn-outline-danger:not(:disabled):not(.disabled):active {
    background: rgba(239, 68, 68, 0.12);
    color: var(--luna-danger);
    border-color: var(--luna-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18);
}

/* Default + variants used by Identity scaffold / Billing — keep on-theme. */
.btn-secondary,
.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
    background: var(--luna-surface-2);
    border-color: var(--luna-border-strong);
    color: var(--luna-text);
}
.btn-secondary:hover { background: var(--luna-elevated); }

.btn-danger {
    background: var(--luna-danger);
    border-color: var(--luna-danger);
    color: #fff;
}
.btn-danger:hover,
.btn-danger:focus,
.btn-danger:focus-visible,
.btn-danger:active,
.btn-danger.active {
    background: #c63a3a;
    border-color: #c63a3a;
    color: #fff;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.22);
}

.btn-success {
    background: var(--luna-success);
    border-color: var(--luna-success);
    color: #06281e;
}
.btn-success:disabled,
.btn-success.disabled {
    background: rgba(16, 185, 129, 0.18);
    border-color: rgba(16, 185, 129, 0.35);
    color: var(--luna-success);
    opacity: 1;
}

.btn-link {
    color: var(--luna-text-soft);
    text-decoration: underline;
    text-decoration-color: var(--luna-border-strong);
    text-underline-offset: 3px;
}
.btn-link:hover, .btn-link:focus {
    color: var(--luna-accent);
    text-decoration-color: var(--luna-accent);
}

.list-group { border-radius: var(--luna-radius-md); overflow: hidden; border: 1px solid var(--luna-border); }
.list-group-item {
    background: var(--luna-surface);
    color: var(--luna-text);
    border-color: var(--luna-border);
    padding: .85rem 1rem;
}
.list-group-item-action:hover, .list-group-item-action:focus { background: var(--luna-surface-2); }

.alert { border-radius: var(--luna-radius-md); border: 1px solid var(--luna-border); color: var(--luna-text); padding: .85rem 1rem; }
.alert-info { background: var(--luna-accent-soft); border-color: var(--luna-accent-border); }
.alert-success { background: rgba(16, 185, 129, .12); border-color: rgba(16, 185, 129, .28); }
.alert-danger { background: rgba(239, 68, 68, .12); border-color: rgba(239, 68, 68, .28); }
.alert-warning { background: rgba(245, 158, 11, .12); border-color: rgba(245, 158, 11, .28); }

.table { color: var(--luna-text); }
.table > :not(caption) > * > * { background: transparent; border-bottom-color: var(--luna-border); padding: .8rem; }
.table-striped > tbody > tr:nth-of-type(odd) > * { background: var(--luna-surface-2); }
.table > thead { color: var(--luna-muted-strong); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }

.text-muted { color: var(--luna-muted) !important; }
.text-danger { color: var(--luna-danger) !important; }
hr { border-color: var(--luna-border); opacity: 1; }
.badge.bg-primary { background: var(--luna-accent) !important; }

/* ============ Top navbar (only on non-chat pages) ============ */
.luna-navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(11, 11, 13, 0.78);
    backdrop-filter: saturate(150%) blur(16px);
    -webkit-backdrop-filter: saturate(150%) blur(16px);
    border-bottom: 1px solid var(--luna-border);
    height: var(--luna-navbar-height);
    padding: 0 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}
.luna-brand {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--luna-text);
    letter-spacing: -0.005em;
}
.luna-brand:hover { color: var(--luna-text); }
.luna-mark { color: var(--luna-accent); }

.luna-nav-link {
    color: var(--luna-muted);
    padding: .35rem .75rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: .88rem;
    text-decoration: none;
    transition: color .15s ease, background .15s ease;
}
.luna-nav-link:hover { color: var(--luna-text); background: var(--luna-surface-2); }

.luna-nav-tail { display: flex; align-items: center; gap: .5rem; margin-left: auto; }

.luna-icon-btn {
    width: 34px; height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid var(--luna-border);
    background: var(--luna-surface);
    color: var(--luna-text-soft);
    cursor: pointer;
    transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.luna-icon-btn:hover { background: var(--luna-surface-2); color: var(--luna-text); border-color: var(--luna-border-strong); }

.luna-avatar-btn {
    width: 34px; height: 34px;
    border: 1px solid var(--luna-border);
    background: var(--luna-surface);
    border-radius: 50%;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.luna-avatar-btn:hover { border-color: var(--luna-accent); }

/* Navbar usage pill — always-visible "Plan · used / limit" link to /billing. */
.luna-usage-pill {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .3rem .65rem .3rem .55rem;
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-pill);
    background: var(--luna-surface);
    color: var(--luna-text-soft);
    font-size: .78rem;
    line-height: 1;
    text-decoration: none;
    transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.luna-usage-pill:hover {
    color: var(--luna-text);
    background: var(--luna-surface-2);
    border-color: var(--luna-border-strong);
}
.luna-usage-pill > .bi { color: var(--luna-accent); font-size: .85rem; }
.luna-usage-pill-label {
    display: inline-flex;
    align-items: baseline;
    gap: .35rem;
    white-space: nowrap;
}
.luna-usage-pill-tier { font-weight: 600; color: var(--luna-text); }
.luna-usage-pill-meta { color: var(--luna-muted); font-variant-numeric: tabular-nums; }
.luna-usage-pill-bar {
    display: inline-block;
    width: 48px;
    height: 4px;
    border-radius: 2px;
    background: var(--luna-surface-2);
    overflow: hidden;
}
.luna-usage-pill-bar-fill {
    display: block;
    height: 100%;
    background: var(--luna-accent);
    transition: width .25s ease;
}
.luna-usage-pill.is-warn { border-color: rgba(234, 179, 8, .55); }
.luna-usage-pill.is-warn .luna-usage-pill-bar-fill { background: #eab308; }
.luna-usage-pill.is-danger { border-color: rgba(239, 68, 68, .65); }
.luna-usage-pill.is-danger .luna-usage-pill-bar-fill { background: var(--luna-danger); }
.luna-usage-pill.is-danger .luna-usage-pill-meta { color: var(--luna-danger); }
@media (max-width: 640px) {
    .luna-usage-pill-meta { display: none; }
    .luna-usage-pill-bar { display: none; }
}

.luna-avatar-sm {
    width: 26px; height: 26px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--luna-accent), var(--luna-accent-2));
    color: #fff;
    font-size: .7rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.luna-dropdown {
    background: var(--luna-elevated);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md);
    box-shadow: var(--luna-shadow-lg);
    padding: .35rem;
}
.luna-dropdown-header {
    padding: .55rem .75rem;
    color: var(--luna-text-soft);
    font-size: .85rem;
    line-height: 1.35;
}
.luna-dropdown .dropdown-item {
    color: var(--luna-text);
    border-radius: 6px;
    padding: .45rem .65rem;
    font-size: .9rem;
    background: transparent;
}
.luna-dropdown .dropdown-item:hover, .luna-dropdown .dropdown-item:focus {
    background: var(--luna-surface-2);
    color: var(--luna-text);
}
.luna-dropdown .dropdown-divider { border-color: var(--luna-border); margin: .35rem 0; }

/* ============ Config warning banner ============ */
.luna-config-warning {
    background: rgba(245, 158, 11, 0.10);
    border-bottom: 1px solid rgba(245, 158, 11, 0.30);
    color: var(--luna-text);
    padding: .55rem 1.25rem;
    font-size: .85rem;
    display: flex;
    gap: .55rem;
    align-items: center;
}
.luna-config-warning i { color: var(--luna-warning); font-size: .95rem; }
.luna-config-warning-link { margin-left: auto; color: var(--luna-text); font-weight: 500; font-size: .85rem; white-space: nowrap; }
.luna-config-warning-link:hover { color: var(--luna-accent); }

/* ============ Anonymous landing ============ */
.luna-landing {
    position: relative;
    min-height: calc(100vh - var(--luna-navbar-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem 4rem;
    overflow: hidden;
}
.luna-landing-glow {
    position: absolute;
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: min(900px, 90vw);
    height: 600px;
    pointer-events: none;
    background: radial-gradient(closest-side at 50% 50%, rgba(139, 92, 246, 0.18), rgba(139, 92, 246, 0) 70%);
    filter: blur(20px);
    z-index: 0;
}
.luna-landing-main { position: relative; z-index: 1; width: 100%; max-width: 640px; text-align: center; }
.luna-landing-title {
    font-size: clamp(1.85rem, 4.5vw, 2.6rem);
    font-weight: 600;
    letter-spacing: -0.022em;
    line-height: 1.15;
    color: var(--luna-text);
    margin: 0 0 2rem;
}
.luna-landing-composer {
    display: flex;
    align-items: center;
    gap: .35rem;
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    padding: .35rem .35rem .35rem .85rem;
    box-shadow: var(--luna-shadow-md);
    transition: border-color .15s ease, box-shadow .2s ease;
    max-width: 540px;
    margin: 0 auto;
}
.luna-landing-composer:focus-within {
    border-color: var(--luna-accent);
    box-shadow: 0 0 0 3px var(--luna-accent-soft), var(--luna-shadow-md);
}
.luna-landing-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--luna-text);
    font-size: 1rem;
    padding: .65rem .25rem;
    font-family: inherit;
    outline: none;
    min-width: 0;
}
.luna-landing-input::placeholder { color: var(--luna-muted); }
.luna-landing-send {
    width: 38px; height: 38px;
    border-radius: 50%;
    background: var(--luna-accent);
    color: #fff;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background .15s ease;
    cursor: pointer;
}
.luna-landing-send:hover { background: var(--luna-accent-hover); }
.luna-landing-foot { margin: 1.5rem 0 0; color: var(--luna-muted); font-size: .9rem; }
.luna-landing-foot a { color: var(--luna-text-soft); font-weight: 500; transition: color .15s ease; }
.luna-landing-foot a:hover { color: var(--luna-text); }
.luna-sep { margin: 0 .65rem; color: var(--luna-border-strong); }

/* ============ Chat shell (sidebar + main) ============ */
.luna-app {
    display: grid;
    grid-template-columns: var(--luna-sidebar-width) 1fr;
    /* Just fills its parent (body, which is itself sized to the visible
       viewport on bare-layout pages — see html.luna-locked above). No
       position: fixed, no transform, no fancy iOS keyboard tracking on this
       element. With body locked to the visible-viewport height and overflow
       hidden, iOS literally has no scroll room — the topbar stays put at
       body top, composer stays put at body bottom (above the keyboard), and
       the messages area shrinks between them as a flex child. Nothing iOS
       can drag because nothing is anchored to the layout viewport. */
    height: 100%;
    min-height: 0;
    background: var(--luna-bg);
    transition: grid-template-columns .22s ease;
}
html.luna-sidebar-collapsed .luna-app { grid-template-columns: var(--luna-sidebar-collapsed-width) 1fr; }

.luna-sidebar {
    background: var(--luna-sidebar-bg);
    border-right: 1px solid var(--luna-border);
    display: flex;
    flex-direction: column;
    min-height: 0;
    /* Don't clip — Bootstrap dropdowns need to escape the sidebar bounds. */
}

.luna-sidebar-top {
    display: flex;
    align-items: center;
    gap: .15rem;
}
/* Sidebar wordmark only appears on mobile (next to the moon in the drawer).
   Desktop keeps the pre-existing look — just the moon icon, Luna lives in the topbar. */
.luna-sidebar-brand {
    display: none;
    font-weight: 600;
    font-size: 1rem;
    color: var(--luna-text);
    letter-spacing: -0.005em;
    line-height: 1;
    margin-left: -.15rem;
}
@media (max-width: 900px) {
    .luna-sidebar-brand {
        display: inline-flex;
        align-items: center;
        /* Pull tight to the moon — the 40px button has internal padding that
           pushes the icon away from the right edge, so a negative margin closes
           the visual gap. */
        margin-left: -.5rem;
        line-height: 1;
        /* Nudge down to baseline-match the moon glyph, which sits slightly
           below the optical center of its 40px button. */
        transform: translateY(1px);
    }
    .luna-sidebar-top { align-items: center; gap: 0; }
}

/* Sidebar collapse button: moon icon by default, morphs to layout-sidebar icon on hover */
.luna-sidebar-collapse-btn {
    position: relative;
    width: 40px; height: 40px;
    margin: .65rem .65rem .35rem;
    background: transparent;
    border: 1px solid transparent;
    color: var(--luna-text);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .15s ease, border-color .15s ease;
}
.luna-sidebar-collapse-btn .luna-mark { color: var(--luna-accent); transition: opacity .15s ease; }
.luna-sidebar-collapse-btn .luna-sidebar-collapse-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--luna-text-soft);
    opacity: 0;
    transition: opacity .15s ease;
    font-size: 1.05rem;
}
.luna-sidebar-collapse-btn:hover { background: var(--luna-surface-2); border-color: var(--luna-border); }
.luna-sidebar-collapse-btn:hover .luna-mark { opacity: 0; }
.luna-sidebar-collapse-btn:hover .luna-sidebar-collapse-icon { opacity: 1; }
/* Collapsed state uses absolute padding (NOT margin: auto / justify-content:
   center) for everything that should appear centered in the 64px column.
   `auto` and `center` both recompute against the parent's current width, so
   when the sidebar animates from 280→64 the icons slide leftward over the
   whole transition. Pinning them with fixed offsets keeps them at the same
   screen X throughout — only the sidebar's right edge animates inward. */
html.luna-sidebar-collapsed .luna-app .luna-sidebar-collapse-btn { margin: .65rem 12px .35rem; }

.luna-sidebar-header {
    padding: .25rem .65rem .65rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.luna-new-chat-btn {
    display: flex;
    align-items: center;
    gap: .6rem;
    width: 100%;
    background: var(--luna-surface);
    color: var(--luna-text);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-sm);
    padding: .55rem .75rem;
    font-weight: 500;
    font-size: .88rem;
    transition: background .15s ease, border-color .15s ease;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
}
.luna-new-chat-btn i { font-size: 1rem; color: var(--luna-muted-strong); }
.luna-new-chat-btn:hover {
    background: var(--luna-surface-2);
    border-color: var(--luna-border-strong);
    color: var(--luna-text);
}
html.luna-sidebar-collapsed .luna-app .luna-new-chat-btn {
    justify-content: flex-start;
    padding: .55rem 1rem;
}

.luna-sidebar-search {
    position: relative;
    display: flex;
    align-items: center;
}
.luna-sidebar-search i {
    position: absolute;
    left: .65rem;
    color: var(--luna-muted);
    font-size: .85rem;
    pointer-events: none;
}
.luna-search-input {
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--luna-radius-sm);
    padding: .45rem .65rem .45rem 2rem;
    font-size: .85rem;
    width: 100%;
    color: var(--luna-text);
    font-family: inherit;
    transition: background .15s ease, border-color .15s ease;
}
.luna-search-input::placeholder { color: var(--luna-muted); }
.luna-search-input:hover { background: var(--luna-surface); }
.luna-search-input:focus {
    outline: none;
    background: var(--luna-surface);
    border-color: var(--luna-accent);
    box-shadow: 0 0 0 3px var(--luna-accent-soft);
}
html.luna-sidebar-collapsed .luna-app .luna-sidebar-search { display: none; }

.luna-chat-list {
    overflow-y: auto;
    flex: 1;
    padding: .25rem .5rem 1rem;
    min-height: 0;
}
/* Keep the flex space when collapsed so nav stays pinned to the bottom; just hide the contents. */
html.luna-sidebar-collapsed .luna-app .luna-chat-list > * { display: none; }

.luna-sidebar-empty { color: var(--luna-muted); font-size: .85rem; padding: .75rem .75rem 0; }

.luna-chat-item-wrap {
    position: relative;
    display: flex;
    align-items: center;
    border-radius: 8px;
    margin: 2px 0;
    transition: background .15s ease;
    min-width: 0;
}
.luna-chat-item-wrap:hover,
.luna-chat-item-wrap.active { background: var(--luna-surface-2); }
.luna-chat-item-wrap.active .luna-chat-item { color: var(--luna-text); font-weight: 500; }
.luna-chat-item {
    display: flex;
    align-items: center;
    gap: .45rem;
    padding: .55rem .7rem;
    color: var(--luna-text-soft);
    text-decoration: none;
    font-size: .87rem;
    line-height: 1.3;
    flex: 1;
    min-width: 0;
    transition: color .15s ease;
}
.luna-chat-item:hover { color: var(--luna-text); }
.luna-chat-item-title {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.luna-chat-delete {
    background: transparent;
    border: none;
    color: var(--luna-muted);
    padding: .3rem .55rem;
    cursor: pointer;
    border-radius: 6px;
    font-size: .85rem;
    opacity: 0;
    transition: opacity .15s ease, color .15s ease, background .15s ease;
    flex-shrink: 0;
}
.luna-chat-item-wrap:hover .luna-chat-delete,
.luna-chat-delete:focus-visible { opacity: 1; }
.luna-chat-delete:hover { color: var(--luna-danger); background: rgba(255, 255, 255, 0.06); }
.luna-chat-busy {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: var(--luna-accent);
    flex-shrink: 0;
    box-shadow: 0 0 0 0 var(--luna-accent);
    animation: luna-chat-busy-pulse 1.4s ease-in-out infinite;
}
@keyframes luna-chat-busy-pulse {
    0%, 100% { opacity: .55; transform: scale(.85); box-shadow: 0 0 0 0 rgba(120, 90, 255, 0.5); }
    50%      { opacity: 1;   transform: scale(1.1); box-shadow: 0 0 0 5px rgba(120, 90, 255, 0); }
}
.luna-chat-item-wrap.is-streaming .luna-chat-item-title {
    color: var(--luna-text);
    font-weight: 600;
}
.luna-chat-item-wrap.is-streaming::before {
    content: '';
    position: absolute;
    left: 0; top: 6px; bottom: 6px;
    width: 2px;
    border-radius: 2px;
    background: var(--luna-accent);
}
.luna-chat-item-wrap.is-streaming { position: relative; }

.luna-sidebar-nav {
    border-top: 1px solid var(--luna-border);
    padding: .5rem .5rem;
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex-shrink: 0;
}
.luna-sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: .65rem;
    color: var(--luna-text-soft);
    text-decoration: none;
    padding: .55rem .7rem;
    border-radius: 8px;
    font-size: .88rem;
    font-weight: 500;
    transition: background .15s ease, color .15s ease;
}
.luna-sidebar-nav-item i { font-size: 1rem; color: var(--luna-muted-strong); }
.luna-sidebar-nav-item:hover { background: var(--luna-surface-2); color: var(--luna-text); }
.luna-sidebar-nav-item.active { background: var(--luna-accent-soft); color: var(--luna-text); }
.luna-sidebar-nav-item.active i { color: var(--luna-accent); }
html.luna-sidebar-collapsed .luna-app .luna-sidebar-nav-item { justify-content: flex-start; padding: .55rem 1rem; }

.luna-sidebar-foot {
    border-top: 1px solid var(--luna-border);
    padding: .5rem;
    flex-shrink: 0;
}
.luna-sidebar-usage {
    display: block;
    text-decoration: none;
    color: var(--luna-text-soft);
    padding: .55rem .65rem;
    border-radius: 8px;
    margin-bottom: .25rem;
    transition: background .15s ease, color .15s ease;
}
.luna-sidebar-usage:hover { background: var(--luna-surface-2); color: var(--luna-text); }
.luna-sidebar-usage-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    font-size: .8rem;
}
.luna-sidebar-usage-tier {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-weight: 600;
    color: var(--luna-text);
}
.luna-sidebar-usage-tier > .bi { color: var(--luna-accent); font-size: .85rem; }
.luna-sidebar-usage-meta { color: var(--luna-muted); font-variant-numeric: tabular-nums; }
.luna-sidebar-usage-bar {
    display: block;
    height: 3px;
    margin-top: .4rem;
    border-radius: 2px;
    background: var(--luna-surface-2);
    overflow: hidden;
}
.luna-sidebar-usage-bar-fill {
    display: block;
    height: 100%;
    background: var(--luna-accent);
    transition: width .25s ease;
}
.luna-sidebar-usage.is-warn .luna-sidebar-usage-bar-fill { background: #eab308; }
.luna-sidebar-usage.is-danger .luna-sidebar-usage-bar-fill { background: var(--luna-danger); }
.luna-sidebar-usage.is-danger .luna-sidebar-usage-meta { color: var(--luna-danger); }

/* Circular gauge — replaces the linear bar+text when the sidebar is collapsed.
   No `margin: 0 auto` — that would beat the parent's flex-start anchor and
   drag the ring toward the moving center during the column-collapse
   transition. The ring is hidden in the expanded state, so centering only
   matters when collapsed, where the parent's padding-left does the work. */
.luna-sidebar-usage-ring {
    display: none;
    position: relative;
    width: 34px;
    height: 34px;
    flex-shrink: 0;
}
.luna-sidebar-usage-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}
.luna-sidebar-usage-ring-track {
    fill: none;
    stroke: var(--luna-surface-2);
    stroke-width: 3;
}
.luna-sidebar-usage-ring-fill {
    fill: none;
    stroke: var(--luna-accent);
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dashoffset .3s ease, stroke .15s ease;
}
.luna-sidebar-usage-ring > .bi {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--luna-accent);
    font-size: .8rem;
    transition: color .15s ease;
}
.luna-sidebar-usage.is-warn .luna-sidebar-usage-ring-fill { stroke: #eab308; }
.luna-sidebar-usage.is-warn .luna-sidebar-usage-ring > .bi { color: #eab308; }
.luna-sidebar-usage.is-danger .luna-sidebar-usage-ring-fill { stroke: var(--luna-danger); }
.luna-sidebar-usage.is-danger .luna-sidebar-usage-ring > .bi { color: var(--luna-danger); }

/* Collapsed sidebar — swap the linear pill for the ring gauge. Padding-left
   positions the 34px ring such that it ends up centered in the 64px column
   without using justify-content: center (which would drag during animation). */
html.luna-sidebar-collapsed .luna-app .luna-sidebar-usage {
    padding: .35rem .35rem .35rem 7px;
    display: flex;
    justify-content: flex-start;
}
html.luna-sidebar-collapsed .luna-app .luna-sidebar-usage-ring { display: block; }
html.luna-sidebar-collapsed .luna-app .luna-sidebar-usage-row,
html.luna-sidebar-collapsed .luna-app .luna-sidebar-usage-bar { display: none; }
.luna-sidebar-user {
    display: flex;
    align-items: center;
    gap: .65rem;
    width: 100%;
    background: transparent;
    border: none;
    color: var(--luna-text-soft);
    padding: .5rem .65rem;
    border-radius: 8px;
    font-size: .85rem;
    text-align: left;
    transition: background .15s ease, color .15s ease;
    cursor: pointer;
}
.luna-sidebar-user:hover { background: var(--luna-surface-2); color: var(--luna-text); }
.luna-sidebar-user-email {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
/* Anchor the avatar at flex-start with a padding-left that lands the 26px
   circle at the 64px column's centerline (foot pad 8 + 11 = 19 = (64 − 26)/2).
   `justify-content: center` here would track the shrinking column's midpoint
   during the collapse transition and drag the avatar across the row. */
html.luna-sidebar-collapsed .luna-app .luna-sidebar-user {
    justify-content: flex-start;
    padding: .5rem .35rem .5rem 11px;
}

.luna-sidebar-label { transition: opacity .12s ease; }
html.luna-sidebar-collapsed .luna-app .luna-sidebar-label { display: none; }

.luna-chat-list::-webkit-scrollbar,
.luna-messages::-webkit-scrollbar { width: 8px; }
.luna-chat-list::-webkit-scrollbar-thumb,
.luna-messages::-webkit-scrollbar-thumb {
    background: var(--luna-border-strong);
    border-radius: 8px;
}
.luna-chat-list::-webkit-scrollbar-track,
.luna-messages::-webkit-scrollbar-track { background: transparent; }

/* ============ Main area ============ */
.luna-main { display: flex; flex-direction: column; min-height: 0; min-width: 0; background: var(--luna-bg); }

.luna-topbar {
    height: var(--luna-navbar-height);
    padding: 0 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--luna-bg);
    border-bottom: 1px solid var(--luna-border);
}
.luna-topbar-left {
    display: flex;
    align-items: center;
    gap: .65rem;
    min-width: 0;
    flex: 1 1 auto;
}
.luna-topbar-brand {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--luna-text);
    letter-spacing: -0.005em;
    text-decoration: none;
    flex-shrink: 0;
}
.luna-topbar-brand:hover { color: var(--luna-text); }
.luna-topbar-brand .luna-mark { color: var(--luna-accent); }
.luna-topbar-sep {
    color: var(--luna-border-strong);
    font-weight: 400;
    flex-shrink: 0;
}
.luna-topbar-title {
    color: var(--luna-text-soft);
    font-weight: 500;
    font-size: .92rem;
    letter-spacing: -0.005em;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex: 1 1 0;
}
.luna-topbar-right {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-shrink: 0;
}

.luna-messages { flex: 1; overflow-y: auto; padding: 1.5rem 1.25rem; background: var(--luna-bg); }
.luna-msg { max-width: 900px; margin: 0 auto 1.5rem auto; display: flex; gap: .85rem; align-items: flex-start; }
.luna-avatar {
    flex: 0 0 30px;
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: .72rem;
    color: #fff;
    margin-top: 2px;
    user-select: none;
    -webkit-user-select: none;
}
.luna-msg.assistant .luna-avatar { background: linear-gradient(135deg, var(--luna-accent), var(--luna-accent-2)); }

.luna-msg-content { flex: 1; min-width: 0; position: relative; }
.luna-msg-role {
    font-size: .78rem;
    font-weight: 600;
    color: var(--luna-text);
    margin-bottom: .25rem;
    letter-spacing: -0.005em;
}
/* User messages: no avatar circle, right-aligned bubble with the "You"
   label sitting on the right side above it. */
.luna-msg.user {
    flex-direction: row-reverse;
    gap: 0;
}
.luna-msg.user .luna-msg-content {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    max-width: 100%;
}
.luna-msg.user .luna-msg-role { text-align: right; }

.luna-msg-body { line-height: 1.65; color: var(--luna-text); word-wrap: break-word; font-size: .95rem; }
.luna-msg.user .luna-msg-body {
    background: var(--luna-user-bubble);
    padding: .75rem 1rem;
    border-radius: var(--luna-radius-md);
    max-width: 100%;
    text-align: left;
}
.luna-msg.assistant .luna-msg-body { padding: 0; }

.luna-msg-body p { margin: 0 0 .7rem; }
.luna-msg-body p:last-child { margin-bottom: 0; }
.luna-msg-body h1, .luna-msg-body h2, .luna-msg-body h3 { margin: 1.1rem 0 .55rem; font-weight: 600; letter-spacing: -0.01em; color: var(--luna-text); }
.luna-msg-body h1 { font-size: 1.35rem; }
.luna-msg-body h2 { font-size: 1.15rem; }
.luna-msg-body h3 { font-size: 1rem; }
.luna-msg-body ul, .luna-msg-body ol { padding-left: 1.3rem; margin: 0 0 .7rem; }
.luna-msg-body li { margin: .2rem 0; }
.luna-msg-body blockquote { border-left: 3px solid var(--luna-accent); margin: .5rem 0; padding: .1rem .9rem; color: var(--luna-text-soft); }

.luna-msg-body pre {
    background: var(--luna-code-bg);
    color: var(--luna-code-fg);
    padding: .85rem 1rem;
    border-radius: var(--luna-radius-md);
    overflow-x: auto;
    border: 1px solid var(--luna-border);
    font-size: .85rem;
    line-height: 1.55;
    margin: .65rem 0;
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
.luna-msg-body code:not(pre code) {
    background: var(--luna-code-bg);
    padding: .12rem .4rem;
    border-radius: 5px;
    font-size: .87em;
    color: var(--luna-text);
    border: 1px solid var(--luna-border);
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

.luna-msg-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: .5rem;
}
.luna-msg-attachments img {
    /* max-width: 100% prevents the old 320px-fixed overflow on mobile and
       lets the image grow to fill the message column on desktop (~680px,
       roughly 2× the previous size). For full-resolution viewing the user
       can click the image to open the lightbox. */
    max-width: 100%;
    width: auto;
    height: auto;
    /* Cap vertical so a single tall image can't push the composer off-screen. */
    max-height: 70vh;
    border-radius: var(--luna-radius-sm);
    border: 1px solid var(--luna-border);
    cursor: zoom-in;
    transition: filter .15s ease, transform .15s ease;
    display: block;
}
.luna-msg-attachments img:hover { filter: brightness(1.05); }
@media (max-width: 480px) {
    /* Phones: be even more conservative on vertical so the keyboard + message
       text still have breathing room. */
    .luna-msg-attachments img { max-height: 55vh; }
}

.luna-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    cursor: zoom-out;
}
.luna-lightbox[hidden] { display: none; }
.luna-lightbox-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--luna-radius-sm);
    box-shadow: 0 12px 60px rgba(0, 0, 0, 0.5);
    cursor: default;
}
.luna-lightbox-close,
.luna-lightbox-download {
    position: fixed;
    top: 1rem;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .15s ease, border-color .15s ease;
    text-decoration: none;
    font-size: 1rem;
}
.luna-lightbox-close { right: 1rem; }
.luna-lightbox-download { right: 3.6rem; }
.luna-lightbox-close:hover,
.luna-lightbox-download:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
}

.luna-msg-copy {
    position: absolute;
    top: 0;
    right: 0;
    background: transparent;
    border: none;
    color: var(--luna-muted);
    cursor: pointer;
    padding: .15rem .4rem;
    font-size: .95rem;
    line-height: 1;
    border-radius: 6px;
    opacity: 0;
    transition: opacity .15s ease, color .15s ease, background .15s ease;
}
.luna-msg:hover .luna-msg-copy,
.luna-msg-copy:focus-visible { opacity: 1; }
.luna-msg-copy:hover { color: var(--luna-text); background: var(--luna-surface-2); }

/* ============ Composer ============ */
/* The wrapper is intentionally transparent — the rounded "pill" inside
   (.luna-composer-inner) owns its own surface color. Painting the wrapper
   solid put a flat dark rectangle behind the pill (especially visible on
   mobile where the wrapper extends to the screen edges), and on iOS it
   also blocked the home-indicator's translucent overlay from showing. */
.luna-composer { padding: .75rem 1.25rem 1.25rem; background: transparent; }
.luna-composer-inner {
    max-width: 900px;
    margin: 0 auto;
    background: var(--luna-input-bg);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    box-shadow: var(--luna-shadow-md);
    padding: .35rem .5rem;
    transition: border-color .15s ease, box-shadow .2s ease;
    cursor: text;
}
.luna-composer-inner:focus-within {
    border-color: var(--luna-accent);
    box-shadow: 0 0 0 3px var(--luna-accent-soft), var(--luna-shadow-md);
}
#attachment-list:not(:empty) { padding: .3rem .25rem 0; }
.luna-composer-row {
    display: flex;
    /* End-align so the attach + send buttons sit alongside the last line of
       text when the textarea grows multi-line, instead of floating in the
       vertical middle of a tall box. */
    align-items: flex-end;
    gap: .25rem;
    min-height: 44px;
}
.luna-composer textarea {
    flex: 1;
    resize: none;
    min-height: 36px;
    max-height: 240px;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: .45rem .6rem !important;
    font-size: .95rem;
    line-height: 1.55;
    color: var(--luna-text);
    font-family: var(--luna-font);
    /* Custom thin scrollbar — Windows' native textarea scrollbar shows up/down
       arrow buttons that look glitchy crammed against the send button. */
    scrollbar-width: thin;
    scrollbar-color: var(--luna-border) transparent;
}
.luna-composer textarea::-webkit-scrollbar { width: 8px; }
.luna-composer textarea::-webkit-scrollbar-track { background: transparent; }
.luna-composer textarea::-webkit-scrollbar-thumb {
    background: var(--luna-border);
    border-radius: 4px;
    border: 2px solid transparent;
    background-clip: padding-box;
}
.luna-composer textarea::-webkit-scrollbar-thumb:hover { background: var(--luna-text-soft); background-clip: padding-box; border: 2px solid transparent; }
.luna-composer textarea::-webkit-scrollbar-button { display: none; height: 0; width: 0; }
.luna-composer textarea::-webkit-scrollbar-corner { background: transparent; }
/* Keep the attach + send buttons at the textarea's bottom-line baseline. */
.luna-composer .luna-attach-btn,
.luna-composer .luna-send-btn { align-self: flex-end; margin-bottom: 2px; }
.luna-composer textarea:focus { outline: none; box-shadow: none !important; }
.luna-composer textarea::placeholder { color: var(--luna-muted); }

.luna-send-btn {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--luna-accent);
    color: #fff;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background .15s ease, transform .06s ease;
    cursor: pointer;
}
.luna-send-btn:hover:not(:disabled) { background: var(--luna-accent-hover); }
.luna-send-btn:disabled { opacity: .4; cursor: not-allowed; }
.luna-send-btn.is-stopping { background: var(--luna-text); color: var(--luna-bg); }
.luna-send-btn.is-stopping:hover { background: var(--luna-text-soft); }

.luna-attach-btn {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--luna-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background .15s ease, color .15s ease;
    cursor: pointer;
}
.luna-attach-btn:hover { background: var(--luna-surface-2); color: var(--luna-text); }

.luna-attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .25rem .6rem;
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-pill);
    margin: 0 .35rem .35rem 0;
    font-size: .8rem;
    background: var(--luna-surface-2);
    color: var(--luna-text);
}
.luna-attachment-chip button {
    background: transparent; border: none; padding: 0 .1rem;
    color: var(--luna-muted); cursor: pointer; font-size: 1rem; line-height: 1;
}

/* ============ Thinking indicator ============ */
/* Plain "Thinking" with a lighter highlight sweeping across the letters. */
.luna-thinking {
    display: inline-block;
    font-style: normal;
    font-weight: 500;
    font-size: .95rem;
    background: linear-gradient(
        90deg,
        var(--luna-muted) 0%,
        var(--luna-muted) 40%,
        var(--luna-text) 50%,
        var(--luna-muted) 60%,
        var(--luna-muted) 100%
    );
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    animation: luna-thinking-shimmer 1.8s linear infinite;
}
@keyframes luna-thinking-shimmer {
    0%   { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}
.luna-thinking-interim { margin: .15rem 0 .35rem; }

/* ============ Tool status pills (above the assistant message body) ============ */
.luna-tool-strip {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    margin: 0 0 .5rem 0;
}
.luna-tool-pill {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .8rem;
    padding: .2rem .65rem;
    border-radius: var(--luna-radius-pill);
    background: var(--luna-surface-2);
    border: 1px solid var(--luna-border);
    color: var(--luna-text-soft);
}
.luna-tool-pill i { color: var(--luna-accent); font-size: .9rem; }
.luna-tool-timer { font-variant-numeric: tabular-nums; opacity: .75; }
.luna-tool-pill.is-running {
    background: var(--luna-accent-soft);
    border-color: var(--luna-accent-border);
    color: var(--luna-text);
    animation: luna-pill-pulse 1.6s ease-in-out infinite;
}
.luna-tool-pill.is-done {
    background: rgba(16, 185, 129, .08);
    border-color: rgba(16, 185, 129, .25);
}
.luna-tool-pill.is-done i { color: var(--luna-success); }
.luna-tool-pill.is-error {
    background: rgba(239, 68, 68, .08);
    border-color: rgba(239, 68, 68, .3);
    color: var(--luna-text);
    cursor: help;
}
.luna-tool-pill.is-error i { color: #ef4444; }
.luna-tool-pill.is-notice {
    background: rgba(245, 158, 11, .08);
    border-color: rgba(245, 158, 11, .3);
    color: var(--luna-text);
    cursor: help;
}
.luna-tool-pill.is-notice i { color: #f59e0b; }
@keyframes luna-pill-pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--luna-accent-glow); }
    50%      { box-shadow: 0 0 0 6px rgba(139, 92, 246, 0); }
}

/* ============ Inline error chip (visible inside the assistant body) ============ */
.luna-error-inline {
    display: flex;
    align-items: flex-start;
    gap: .5rem;
    background: rgba(239, 68, 68, .08);
    border: 1px solid rgba(239, 68, 68, .28);
    color: var(--luna-text);
    padding: .55rem .75rem;
    border-radius: var(--luna-radius-sm);
    font-size: .85rem;
    margin: .6rem 0 0;
}
.luna-error-inline i { color: var(--luna-danger); flex-shrink: 0; margin-top: 2px; }
.luna-error-inline.luna-stopped {
    background: var(--luna-surface-2);
    border-color: var(--luna-border);
    color: var(--luna-muted);
}
.luna-error-inline.luna-stopped i { color: var(--luna-muted); }

/* ============ Configuration page: tool list ============ */
.luna-tool-list { display: flex; flex-direction: column; gap: .5rem; }
.luna-tool-row {
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .85rem 1rem;
    background: var(--luna-surface-2);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-sm);
}
.luna-tool-row i { color: var(--luna-accent); font-size: 1.1rem; }

/* ============ Toast notifications ============ */
.luna-toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1300;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    pointer-events: none;
}
.luna-toast {
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .65rem .9rem;
    background: var(--luna-elevated);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md);
    box-shadow: var(--luna-shadow-lg);
    color: var(--luna-text);
    font-size: .87rem;
    max-width: 360px;
    transform: translateY(-8px);
    opacity: 0;
    transition: transform .2s ease, opacity .2s ease;
    pointer-events: auto;
}
.luna-toast.is-visible { transform: translateY(0); opacity: 1; }
.luna-toast i { font-size: 1rem; flex-shrink: 0; }
.luna-toast.is-error i   { color: var(--luna-danger); }
.luna-toast.is-success i { color: var(--luna-success); }
.luna-toast.is-warning i { color: #f59e0b; }
.luna-toast.is-info i,
.luna-toast i { color: var(--luna-accent); }

/* ============ Confirm dialog ============ */
.luna-confirm {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity .18s ease;
}
.luna-confirm[hidden] { display: none; }
.luna-confirm.is-visible { opacity: 1; pointer-events: auto; }
.luna-confirm-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
}
.luna-confirm-dialog {
    position: relative;
    background: var(--luna-elevated);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md);
    box-shadow: var(--luna-shadow-lg);
    width: 100%;
    max-width: 400px;
    padding: 1.25rem 1.25rem 1rem;
    transform: translateY(8px) scale(.98);
    transition: transform .2s cubic-bezier(.2, .8, .2, 1);
}
.luna-confirm.is-visible .luna-confirm-dialog { transform: translateY(0) scale(1); }
.luna-confirm-title { font-size: 1.05rem; font-weight: 600; margin: 0 0 .5rem; color: var(--luna-text); letter-spacing: -0.01em; }
.luna-confirm-body  { font-size: .9rem; color: var(--luna-text-soft); margin: 0 0 1rem; line-height: 1.5; }
.luna-confirm-actions { display: flex; gap: .5rem; justify-content: flex-end; }
.luna-confirm-actions button {
    background: transparent;
    border: 1px solid var(--luna-border-strong);
    color: var(--luna-text);
    padding: .45rem .9rem;
    border-radius: 6px;
    font-size: .85rem;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: background .15s ease, border-color .15s ease;
}
.luna-confirm-actions button:hover { background: var(--luna-surface-2); }
.luna-confirm-ok {
    background: var(--luna-accent) !important;
    border-color: var(--luna-accent) !important;
    color: #fff !important;
}
.luna-confirm-ok:hover { background: var(--luna-accent-hover) !important; border-color: var(--luna-accent-hover) !important; }
.luna-confirm-ok.is-danger { background: var(--luna-danger) !important; border-color: var(--luna-danger) !important; }
.luna-confirm-ok.is-danger:hover { background: #c63a3a !important; border-color: #c63a3a !important; }

/* ============ Temporary chat ============ */
.luna-temp-banner {
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .55rem 1.25rem;
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.14), rgba(139, 92, 246, 0.06));
    border-bottom: 1px solid var(--luna-border);
    color: var(--luna-text-soft);
    font-size: .82rem;
}
.luna-temp-banner i { color: var(--luna-accent); font-size: 1rem; }
.luna-messages[data-temporary="1"] { background: linear-gradient(180deg, rgba(139, 92, 246, 0.04), transparent 240px), var(--luna-bg); }

/* ============ Empty state ============ */
.luna-empty {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .85rem;
    text-align: center;
    color: var(--luna-text);
    padding-bottom: 4rem;
}
.luna-empty-brand {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    color: var(--luna-text-soft);
    font-weight: 500;
    font-size: .95rem;
    letter-spacing: -0.005em;
}
.luna-empty-brand .luna-mark { color: var(--luna-accent); }
.luna-empty-greeting {
    font-family: var(--luna-font);
    font-weight: 500;
    font-size: 2rem;
    color: var(--luna-text);
    letter-spacing: -0.025em;
    margin: 0;
    line-height: 1.2;
}

/* ============ Offcanvas ============ */
.luna-offcanvas { background: var(--luna-surface); color: var(--luna-text); border-left: 1px solid var(--luna-border); }
.luna-offcanvas .offcanvas-header { border-bottom: 1px solid var(--luna-border); }
.luna-offcanvas .btn-close { filter: invert(0.85); opacity: .7; }
.luna-offcanvas .btn-close:hover { opacity: 1; }

/* ============ Auth pages ============ */
.luna-auth-shell {
    min-height: calc(100vh - var(--luna-navbar-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1rem;
    position: relative;
    overflow: hidden;
}
.luna-auth-shell::before {
    content: "";
    position: absolute;
    top: -10%; left: 50%;
    transform: translateX(-50%);
    width: 800px; height: 500px;
    background: radial-gradient(closest-side at 50% 50%, rgba(139, 92, 246, 0.14), rgba(139, 92, 246, 0) 70%);
    filter: blur(20px);
    pointer-events: none;
    z-index: 0;
}
.luna-auth-card {
    position: relative;
    z-index: 1;
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    box-shadow: var(--luna-shadow-lg);
    padding: 2.25rem;
    width: 100%;
    max-width: 420px;
}
.luna-auth-card h1, .luna-auth-card h2 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0 0 .35rem;
    color: var(--luna-text);
}
.luna-auth-subtitle { color: var(--luna-muted); font-size: .92rem; margin-bottom: 1.4rem; }
.luna-auth-card .form-floating { margin-bottom: .85rem; }
.luna-auth-card hr { border-color: var(--luna-border); opacity: 1; }
.luna-auth-card .text-danger { color: var(--luna-danger) !important; font-size: .85rem; }
.luna-auth-aside { color: var(--luna-muted); font-size: .88rem; text-align: center; margin-top: 1.25rem; }
.luna-auth-aside a { color: var(--luna-text-soft); font-weight: 500; }
.luna-auth-aside a:hover { color: var(--luna-accent); }
.luna-auth-legal {
    color: var(--luna-muted);
    font-size: .78rem;
    line-height: 1.5;
    text-align: center;
    margin: .9rem 0 0;
}
.luna-auth-legal a { color: var(--luna-text-soft); }
.luna-auth-legal a:hover { color: var(--luna-accent); }

/* Floating-label color theming inside the auth card. Bootstrap's defaults
   make the floated label fade-on-focus look muted-blue; recolor to accent. */
.luna-auth-card .form-floating > .form-control:focus ~ label,
.luna-auth-card .form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--luna-accent);
}
.luna-auth-card .form-check-input:checked {
    background-color: var(--luna-accent);
    border-color: var(--luna-accent);
}

/* ============ Polished page layout (Settings, Admin, Notes) ============ */
.luna-page {
    max-width: 880px;
    margin: 0 auto;
    padding: 2rem 1.5rem 3rem;
}
.luna-page-head {
    margin-bottom: 2rem;
}
.luna-page-head .luna-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    font-size: .72rem;
    letter-spacing: .14em;
    font-weight: 600;
    color: var(--luna-accent);
    margin-bottom: .65rem;
}
.luna-page-head h2 {
    font-weight: 600;
    letter-spacing: -0.02em;
    font-size: 1.75rem;
    margin: 0 0 .35rem;
    color: var(--luna-text);
}
.luna-page-head p {
    color: var(--luna-muted);
    margin: 0;
    font-size: .95rem;
    max-width: 640px;
}

.luna-page-section {
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    padding: 1.5rem 1.6rem;
    margin-bottom: 1.25rem;
}
.luna-page-section-head { margin-bottom: 1.25rem; }
.luna-page-section-head h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0 0 .25rem;
    color: var(--luna-text);
    letter-spacing: -0.005em;
}
.luna-page-section-head p {
    color: var(--luna-muted);
    font-size: .88rem;
    margin: 0;
}
.luna-page-section-head p a { color: var(--luna-text-soft); text-decoration: underline; text-decoration-color: var(--luna-border-strong); }
.luna-page-section-head p a:hover { color: var(--luna-accent); }

.luna-page-actions {
    display: flex;
    gap: .65rem;
    margin-top: 1.25rem;
}

.luna-optional {
    font-size: .72rem;
    color: var(--luna-muted);
    font-weight: 400;
    text-transform: lowercase;
    padding: .05rem .4rem;
    background: var(--luna-surface-2);
    border-radius: var(--luna-radius-pill);
    margin-left: .3rem;
    border: 1px solid var(--luna-border);
}

/* Two-column form grid for sub-sections that hold several short inputs
   (e.g. current / new / confirm password). Collapses to single column. */
.luna-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem 1.1rem;
}
.luna-form-grid > div { display: flex; flex-direction: column; }

/* Account header summary (avatar + name + email) */
.luna-account-summary {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 1.25rem;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.10), rgba(99, 102, 241, 0.04));
    border: 1px solid var(--luna-accent-border);
    border-radius: var(--luna-radius-lg);
    margin-bottom: 1.25rem;
}
.luna-account-avatar {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--luna-accent), var(--luna-accent-2));
    color: #fff;
    font-size: 1.25rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.25);
    user-select: none;
}
.luna-account-summary-meta { min-width: 0; flex: 1; }
.luna-account-summary-name {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--luna-text);
    line-height: 1.25;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.luna-account-summary-sub {
    color: var(--luna-muted);
    font-size: .85rem;
    margin-top: .15rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Danger zone — destructive sections (delete account, delete all chats). */
.luna-danger-zone {
    border-color: rgba(239, 68, 68, 0.28);
    background: linear-gradient(180deg, rgba(239, 68, 68, 0.045), transparent 80%), var(--luna-surface);
}
.luna-danger-zone .luna-page-section-head h3 { color: var(--luna-text); }
.luna-danger-zone .luna-page-section-head h3::before {
    content: "";
    display: inline-block;
    width: .5rem; height: .5rem;
    border-radius: 50%;
    background: var(--luna-danger);
    margin-right: .55rem;
    vertical-align: middle;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18);
}

/* Notes grid */
.luna-notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}
.luna-note-card {
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md);
    padding: 1.1rem 1.15rem;
    display: flex;
    flex-direction: column;
    gap: .35rem;
    text-decoration: none;
    color: var(--luna-text);
    transition: border-color .15s ease, background .15s ease, transform .06s ease;
    min-height: 140px;
}
.luna-note-card:hover {
    border-color: var(--luna-border-strong);
    transform: translateY(-1px);
    color: var(--luna-text);
}
.luna-note-card h4 {
    font-size: .98rem;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.005em;
    color: var(--luna-text);
    line-height: 1.3;
}
.luna-note-preview {
    flex: 1;
    margin: 0;
    color: var(--luna-muted);
    font-size: .85rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.luna-note-meta { font-size: .75rem; color: var(--luna-muted); }

.luna-note-editor {
    background: var(--luna-input-bg);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-sm);
    color: var(--luna-text);
    padding: 1rem 1.15rem;
    line-height: 1.65;
    font-size: .95rem;
    font-family: var(--luna-font);
    resize: vertical;
}

.luna-back-link {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    color: var(--luna-muted);
    font-size: .85rem;
    text-decoration: none;
    margin-bottom: 1rem;
    transition: color .15s ease;
}
.luna-back-link:hover { color: var(--luna-text); }

/* Stat grid (admin) */
.luna-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: .85rem;
    margin-bottom: 1.5rem;
}
.luna-stat {
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md);
    padding: 1rem 1.1rem;
    display: flex;
    flex-direction: column;
    gap: .15rem;
}
.luna-stat-label {
    font-size: .75rem;
    color: var(--luna-muted);
    text-transform: uppercase;
    letter-spacing: .08em;
    font-weight: 600;
}
.luna-stat-value {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--luna-text);
    letter-spacing: -0.02em;
}

.luna-chart-wrap {
    position: relative;
    height: 320px;
    max-width: 100%;
}

.luna-tag-admin {
    display: inline-flex;
    align-items: center;
    background: var(--luna-accent-soft);
    color: var(--luna-accent);
    border: 1px solid var(--luna-accent-border);
    padding: .12rem .55rem;
    border-radius: var(--luna-radius-pill);
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
}

/* Admin users page — search bar, dense table, pagination */
.luna-page-wide { max-width: 1180px; }

.luna-admin-users { padding: 1.25rem 0 0; overflow: hidden; }
.luna-admin-users-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    padding: 0 1.6rem 1rem;
}
.luna-admin-users-head h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0 0 .25rem;
    color: var(--luna-text);
    letter-spacing: -0.005em;
}
.luna-admin-users-head p {
    color: var(--luna-muted);
    font-size: .88rem;
    margin: 0;
    max-width: 480px;
}

.luna-admin-search {
    display: flex;
    align-items: center;
    gap: .5rem;
}
.luna-admin-search-input {
    position: relative;
    display: flex;
    align-items: center;
}
.luna-admin-search-input > i.bi {
    position: absolute;
    left: .65rem;
    color: var(--luna-muted);
    font-size: .9rem;
    pointer-events: none;
}
.luna-admin-search-input input {
    padding: .35rem .75rem .35rem 2rem;
    background: var(--luna-surface-soft, var(--luna-surface));
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md, 8px);
    color: var(--luna-text);
    font-size: .9rem;
    width: 260px;
    transition: border-color .12s ease, box-shadow .12s ease;
}
.luna-admin-search-input input:focus {
    outline: none;
    border-color: var(--luna-accent-border);
    box-shadow: 0 0 0 3px var(--luna-accent-soft);
}
.luna-admin-search-input input::-webkit-search-cancel-button { display: none; }
.luna-admin-search-clear {
    position: absolute;
    right: .5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.3rem;
    height: 1.3rem;
    border-radius: 999px;
    color: var(--luna-muted);
    text-decoration: none;
    font-size: .7rem;
}
.luna-admin-search-clear:hover { background: var(--luna-border); color: var(--luna-text); }
.luna-admin-pagesize { width: auto; min-width: 100px; }

.luna-admin-users-meta {
    padding: .35rem 1.6rem .9rem;
    color: var(--luna-muted);
    font-size: .85rem;
}
.luna-admin-users-meta strong { color: var(--luna-text); font-weight: 600; }

.luna-admin-users-table { border-top: 1px solid var(--luna-border); }
.luna-admin-users-table table { font-size: .9rem; }
.luna-admin-users-table thead th {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--luna-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--luna-border);
    padding-top: .75rem;
    padding-bottom: .75rem;
}
.luna-admin-users-table tbody td {
    padding-top: .65rem;
    padding-bottom: .65rem;
    border-color: var(--luna-border);
}
.luna-col-pad-l { padding-left: 1.6rem !important; }
.luna-col-pad-r { padding-right: 1.6rem !important; }

.luna-admin-email {
    display: inline-block;
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: bottom;
}

.luna-tag-tier {
    display: inline-flex;
    align-items: center;
    padding: .1rem .55rem;
    border-radius: var(--luna-radius-pill);
    border: 1px solid var(--luna-border);
    background: var(--luna-surface-soft, transparent);
    color: var(--luna-text-soft, var(--luna-text));
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .04em;
}

.luna-admin-tier-form {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}
.luna-admin-tier-form .form-select-sm { width: auto; min-width: 110px; }

.luna-admin-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    padding: 1rem 1.6rem;
    border-top: 1px solid var(--luna-border);
}
.luna-admin-pager-btn,
.luna-admin-pager-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    height: 2rem;
    padding: 0 .65rem;
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md, 8px);
    color: var(--luna-text-soft, var(--luna-text));
    background: transparent;
    text-decoration: none;
    font-size: .85rem;
    font-weight: 500;
    transition: background .12s ease, color .12s ease, border-color .12s ease;
}
.luna-admin-pager-btn { gap: .35rem; }
.luna-admin-pager-btn:hover,
.luna-admin-pager-num:hover {
    background: var(--luna-surface-soft, var(--luna-surface));
    color: var(--luna-text);
    border-color: var(--luna-border-strong, var(--luna-border));
}
.luna-admin-pager-btn.disabled,
.luna-admin-pager-num.disabled {
    color: var(--luna-muted);
    opacity: .55;
    pointer-events: none;
}
.luna-admin-pager-num.active {
    background: var(--luna-accent-soft);
    border-color: var(--luna-accent-border);
    color: var(--luna-accent);
}
.luna-admin-pager-gap { color: var(--luna-muted); padding: 0 .15rem; }

@media (max-width: 720px) {
    .luna-admin-users-head { flex-direction: column; align-items: stretch; }
    .luna-admin-search { flex-wrap: wrap; }
    .luna-admin-search-input input { width: 100%; }
}

/* Admin-specific (legacy class kept for compatibility) */
.luna-admin-page { max-width: 880px; margin: 0 auto; padding: 2rem 1.5rem 3rem; }
.luna-admin-head { margin-bottom: 2rem; }
.luna-admin-head h2 { font-weight: 600; letter-spacing: -0.02em; font-size: 1.75rem; margin: 0 0 .35rem; }
.luna-admin-head p { color: var(--luna-muted); margin: 0; font-size: .95rem; max-width: 640px; }
.luna-admin-head .luna-eyebrow {
    display: inline-block;
    text-transform: uppercase;
    font-size: .72rem;
    letter-spacing: .14em;
    font-weight: 600;
    color: var(--luna-accent);
    margin-bottom: .65rem;
}
.luna-admin-head-hero h2 { font-size: 2rem; }

.luna-config-section {
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    padding: 1.5rem 1.6rem;
    margin-bottom: 1.25rem;
}
.luna-config-section-head { margin-bottom: 1.25rem; }
.luna-config-section h3 { font-size: 1.05rem; font-weight: 600; margin: 0 0 .25rem; color: var(--luna-text); letter-spacing: -0.005em; }
.luna-config-section-head p { color: var(--luna-muted); font-size: .88rem; margin: 0; }
.luna-config-section-head p a { color: var(--luna-text-soft); text-decoration: underline; text-decoration-color: var(--luna-border-strong); }
.luna-config-section-head p a:hover { color: var(--luna-accent); }
.luna-config-help { color: var(--luna-muted); font-size: .88rem; margin: 0 0 1.25rem; }
.luna-config-actions { display: flex; gap: .65rem; padding-top: .5rem; }

/* ============ Mobile menu button (in topbar) ============ */
.luna-mobile-menu-btn { display: none; }
.luna-mobile-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    /* inset: 0 already pins the backdrop to all four viewport edges — no
       explicit height needed. Avoids 100vh / dvh lies on iOS. */
    background: rgba(0, 0, 0, 0.5);
    z-index: 55;
    opacity: 0;
    transition: opacity .2s ease;
}

/* ============ Responsive ============ */
@media (max-width: 900px) {
    .luna-app { grid-template-columns: 1fr; }
    .luna-sidebar {
        position: fixed;
        top: 0; left: 0; bottom: 0;
        width: var(--luna-sidebar-width);
        /* top/bottom anchors give us the visible viewport height without
           any viewport-unit lies — drawer always fills the visible area. */
        /* Safe-area insets so the iOS notch/home indicator don't eat the
           sidebar top/bottom controls. max(...) keeps the existing spacing
           on Androids and notched-but-pulled-in devices. */
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
        transform: translateX(-100%);
        transition: transform .22s ease;
        z-index: 60;
        box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
    }
    .luna-app.mobile-open .luna-sidebar { transform: translateX(0); }
    .luna-app .luna-mobile-backdrop { display: block; }
    .luna-app.mobile-open .luna-mobile-backdrop { opacity: 1; pointer-events: auto; }
    .luna-app:not(.mobile-open) .luna-mobile-backdrop { pointer-events: none; }
    .luna-mobile-menu-btn { display: inline-flex; }
    .luna-msg { gap: .65rem; }
    .luna-avatar { width: 26px; height: 26px; flex-basis: 26px; font-size: .68rem; }
    .luna-topbar { padding: 0 .75rem; gap: .5rem; }
    .luna-topbar-left { gap: .5rem; }
    .luna-topbar-title { font-size: .88rem; }
    /* On mobile, Luna lives in the sidebar drawer — keep the topbar clean (title only). */
    .luna-topbar-brand,
    .luna-topbar-sep { display: none; }
    /* Composer: tighter so the textarea isn't strangled by side padding + buttons.
       Bottom padding respects the iOS home-indicator inset so the send button
       isn't sitting on top of the system gesture bar. */
    .luna-composer {
        padding: .5rem .65rem .85rem;
        padding-bottom: max(.85rem, env(safe-area-inset-bottom));
    }
    .luna-composer-inner { padding: .25rem .35rem; }
    .luna-composer-row { gap: .15rem; }
    .luna-attach-btn, .luna-send-btn { width: 32px; height: 32px; }
    .luna-composer textarea { padding: .35rem .45rem !important; font-size: 16px; /* prevent iOS zoom-on-focus */ }
}

/* iOS-only: the textarea's intrinsic baseline renders a couple of pixels
   lower than Chrome/Firefox, which makes the attach + send icons look
   off-center next to single-line input. The @supports (-webkit-touch-callout)
   query is a long-standing iOS-only feature flag, so this override scopes
   cleanly to Mobile Safari without touching Android or desktop responsive
   mode (where the original flex-end alignment looks correct). */
@supports (-webkit-touch-callout: none) {
    @media (max-width: 900px) {
        .luna-composer-row { align-items: center; }
        .luna-composer .luna-attach-btn,
        .luna-composer .luna-send-btn { align-self: center; margin-bottom: 0; }
    }
}

/* ============ Landing v2 — full marketing home ============
   Sits inside the nav-bearing layout (FullBleed=true), so .luna-home is a
   scrolling document, NOT a centered viewport-height splash. The original
   .luna-landing-* composer styles above are reused. */

.luna-home {
    position: relative;
    overflow-x: clip;
    padding-bottom: 4rem;
}
.luna-home-glow {
    position: absolute;
    top: -160px;
    left: 50%;
    transform: translateX(-50%);
    width: min(1100px, 95vw);
    height: 720px;
    pointer-events: none;
    background:
        radial-gradient(closest-side at 50% 30%, rgba(139, 92, 246, 0.22), rgba(139, 92, 246, 0) 70%),
        radial-gradient(closest-side at 30% 60%, rgba(99, 102, 241, 0.10), rgba(99, 102, 241, 0) 70%);
    filter: blur(24px);
    z-index: 0;
    animation: luna-home-breathe 8s ease-in-out infinite;
}
@keyframes luna-home-breathe {
    0%, 100% { opacity: 0.65; }
    50%      { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
    .luna-home-glow { animation: none; opacity: 0.8; }
}

/* Hero */
.luna-home-hero {
    position: relative;
    z-index: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 4.5rem 1.5rem 3rem;
    text-align: center;
}
.luna-home-h1 {
    font-size: clamp(2rem, 5vw, 3.1rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin: 0 0 1rem;
    color: var(--luna-text);
}
.luna-home-sub {
    color: var(--luna-text-soft);
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    line-height: 1.55;
    margin: 0 auto 2rem;
    max-width: 560px;
}
.luna-home-composer { margin: 0 auto 1.25rem; max-width: 560px; }

.luna-home-cta-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 0 0 1rem;
    flex-wrap: wrap;
}
.luna-home-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.65rem 1.25rem;
    background: var(--luna-accent);
    color: #fff;
    border-radius: var(--luna-radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: background .15s ease, transform .1s ease;
}
.luna-home-cta-primary:hover { background: var(--luna-accent-hover); color: #fff; }
.luna-home-cta-primary:active { transform: translateY(1px); }
.luna-home-cta-secondary {
    display: inline-flex;
    padding: 0.65rem 1.1rem;
    color: var(--luna-text-soft);
    border-radius: var(--luna-radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    transition: color .15s ease, background .15s ease;
}
.luna-home-cta-secondary:hover { color: var(--luna-text); background: var(--luna-surface); }
.luna-home-cta-lg { padding: 0.85rem 1.6rem; font-size: 1rem; }
.luna-home-trust {
    margin: 0;
    color: var(--luna-muted);
    font-size: 0.8rem;
}

/* Sections */
.luna-home-section {
    position: relative;
    z-index: 1;
    max-width: 1080px;
    margin: 0 auto;
    padding: 3.5rem 1.5rem;
}
.luna-home-section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    text-align: center;
    margin: 0 0 0.5rem;
    color: var(--luna-text);
}
.luna-home-section-sub {
    text-align: center;
    color: var(--luna-muted-strong);
    margin: 0 auto 2.5rem;
    max-width: 540px;
}

/* Features grid — pinned to 1 / 2 / 4 columns so 4 cards always lay out
   cleanly. `auto-fit` could otherwise land on 3+1 or 2+2 in awkward window
   widths. */
.luna-home-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 2.5rem;
}
@media (min-width: 560px) {
    .luna-home-features { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
    .luna-home-features { grid-template-columns: repeat(4, 1fr); }
}
.luna-home-feature {
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    padding: 1.5rem;
    transition: border-color .15s ease, transform .15s ease;
}
.luna-home-feature:hover {
    border-color: var(--luna-border-strong);
    transform: translateY(-2px);
}
.luna-home-feature-icon {
    width: 38px; height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--luna-radius-sm);
    background: var(--luna-accent-soft);
    color: var(--luna-accent);
    font-size: 1.1rem;
    margin-bottom: 0.85rem;
}
.luna-home-feature h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.4rem;
    color: var(--luna-text);
    letter-spacing: -0.01em;
}
.luna-home-feature p {
    margin: 0;
    color: var(--luna-text-soft);
    font-size: 0.92rem;
    line-height: 1.55;
}

/* Why-Luna mini block */
.luna-home-why {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    max-width: 880px;
    margin: 2rem auto 0;
}
.luna-home-why-item {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1rem 1.1rem;
    border-left: 2px solid var(--luna-accent);
    background: linear-gradient(90deg, var(--luna-accent-soft), transparent 80%);
    border-radius: 0 var(--luna-radius-md) var(--luna-radius-md) 0;
}
.luna-home-why-item strong {
    color: var(--luna-text);
    font-weight: 600;
    font-size: 0.98rem;
}
.luna-home-why-item span {
    color: var(--luna-text-soft);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Pricing */
.luna-home-plans {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}
.luna-home-plan {
    position: relative;
    background: var(--luna-surface);
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-lg);
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.luna-home-plan.is-featured {
    border-color: var(--luna-accent-border);
    box-shadow: 0 0 0 1px var(--luna-accent-border), 0 18px 48px var(--luna-accent-glow);
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.06), transparent 70%), var(--luna-surface);
}
.luna-home-plan-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--luna-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.25rem 0.65rem;
    border-radius: var(--luna-radius-pill);
}
.luna-home-plan-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--luna-text);
}
.luna-home-plan-tagline {
    margin: 0 0 0.75rem;
    color: var(--luna-text-soft);
    font-size: 0.9rem;
}
.luna-home-plan-tokens {
    display: flex;
    align-items: baseline;
    gap: 0.45rem;
    padding: 0.75rem 0;
    border-top: 1px solid var(--luna-border);
    border-bottom: 1px solid var(--luna-border);
    margin: 0.25rem 0 0.75rem;
}
.luna-home-plan-tokens-n {
    font-size: 1.85rem;
    font-weight: 600;
    color: var(--luna-text);
    letter-spacing: -0.02em;
}
.luna-home-plan-tokens-unit {
    color: var(--luna-muted-strong);
    font-size: 0.85rem;
}
.luna-home-plan-best {
    margin: 0 0 1rem;
    color: var(--luna-muted-strong);
    font-size: 0.85rem;
    line-height: 1.5;
    flex: 1;
}
.luna-home-plan-cta {
    display: inline-flex;
    justify-content: center;
    padding: 0.6rem 1rem;
    border-radius: var(--luna-radius-md);
    border: 1px solid var(--luna-border-strong);
    color: var(--luna-text);
    background: transparent;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.92rem;
    transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.luna-home-plan-cta:hover {
    border-color: var(--luna-accent);
    color: var(--luna-text);
    background: var(--luna-accent-soft);
}
.luna-home-plan-cta.is-primary {
    background: var(--luna-accent);
    border-color: var(--luna-accent);
    color: #fff;
}
.luna-home-plan-cta.is-primary:hover {
    background: var(--luna-accent-hover);
    border-color: var(--luna-accent-hover);
    color: #fff;
}
.luna-home-plan-cta.is-disabled {
    color: var(--luna-muted-strong);
    border-color: var(--luna-border);
    background: transparent;
    cursor: not-allowed;
    pointer-events: none;
    font-style: italic;
}
.luna-home-plan-fineprint {
    margin: 1.75rem auto 0;
    color: var(--luna-muted);
    font-size: 0.8rem;
    text-align: center;
    max-width: 680px;
    line-height: 1.55;
}

/* FAQ */
.luna-home-faq {
    max-width: 720px;
    margin: 1.5rem auto 0;
}
.luna-home-faq-item {
    border-bottom: 1px solid var(--luna-border);
    padding: 0.25rem 0;
}
.luna-home-faq-item:first-of-type { border-top: 1px solid var(--luna-border); }
.luna-home-faq-item > summary {
    list-style: none;
    cursor: pointer;
    padding: 1rem 0.25rem;
    color: var(--luna-text);
    font-weight: 500;
    font-size: 0.98rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: color .15s ease;
}
.luna-home-faq-item > summary::-webkit-details-marker { display: none; }
.luna-home-faq-item > summary::after {
    content: "";
    width: 10px; height: 10px;
    border-right: 1.5px solid var(--luna-muted-strong);
    border-bottom: 1.5px solid var(--luna-muted-strong);
    transform: rotate(45deg);
    transition: transform .2s ease, border-color .15s ease;
    flex-shrink: 0;
    margin-right: 4px;
}
.luna-home-faq-item[open] > summary::after {
    transform: rotate(-135deg);
    border-color: var(--luna-accent);
}
.luna-home-faq-item > summary:hover { color: var(--luna-accent); }
.luna-home-faq-item > p {
    margin: 0 0 1.1rem;
    padding: 0 0.25rem;
    color: var(--luna-text-soft);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* Footer */
.luna-home-footer {
    position: relative;
    z-index: 1;
    max-width: 1080px;
    margin: 2rem auto 0;
    padding: 1.75rem 1.5rem;
    border-top: 1px solid var(--luna-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.luna-home-footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--luna-muted-strong);
    font-size: 0.88rem;
}
.luna-home-footer-brand svg { color: var(--luna-accent); }
.luna-home-footer-nav {
    display: inline-flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}
.luna-home-footer-nav a {
    color: var(--luna-muted-strong);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color .15s ease;
}
.luna-home-footer-nav a:hover { color: var(--luna-text); }

/* Plan price block (only renders when admin has set a USD price). */
.luna-home-plan-price {
    display: flex;
    align-items: baseline;
    gap: 0.3rem;
    margin: 0.1rem 0 0.6rem;
}
.luna-home-plan-price-n {
    font-size: 2rem;
    font-weight: 600;
    color: var(--luna-text);
    letter-spacing: -0.02em;
}
.luna-home-plan-price-unit {
    color: var(--luna-muted-strong);
    font-size: 0.85rem;
}

/* Mobile tightening */
@media (max-width: 640px) {
    .luna-home-hero { padding: 2.5rem 1.25rem 2rem; }
    .luna-home-section { padding: 2.5rem 1.25rem; }
    .luna-home-plan { padding: 1.5rem 1.25rem; }
    .luna-home-plan.is-featured { box-shadow: 0 0 0 1px var(--luna-accent-border); }
}

/* ============ Legal pages (Privacy, Terms) ============
   Long-form reading column. Constrained line length, generous leading,
   muted heading hierarchy so the page reads like a document and not a
   marketing splash. */

.luna-legal {
    max-width: 760px;
    margin: 0 auto;
    padding: 3rem 1.5rem 4rem;
    color: var(--luna-text-soft);
    font-size: 0.98rem;
    line-height: 1.7;
}
.luna-legal-head {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--luna-border);
}
.luna-legal-head h1 {
    font-size: clamp(2rem, 4vw, 2.4rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--luna-text);
    margin: 0 0 0.75rem;
}
.luna-legal-meta {
    margin: 0;
    color: var(--luna-muted-strong);
    font-size: 0.85rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
}
.luna-legal-meta strong { color: var(--luna-text-soft); font-weight: 500; }
.luna-legal-lead {
    font-size: 1.05rem;
    color: var(--luna-text);
    line-height: 1.65;
    margin: 0 0 1.25rem;
}
.luna-legal section { margin: 2.25rem 0; }
.luna-legal h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--luna-text);
    letter-spacing: -0.01em;
    margin: 0 0 1rem;
    padding-top: 0.5rem;
}
.luna-legal h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--luna-text);
    margin: 1.5rem 0 0.6rem;
}
.luna-legal p { margin: 0 0 1rem; }
.luna-legal ul {
    margin: 0 0 1rem;
    padding-left: 1.25rem;
}
.luna-legal li { margin-bottom: 0.45rem; }
.luna-legal strong { color: var(--luna-text); font-weight: 600; }
.luna-legal a {
    color: var(--luna-accent);
    text-decoration: underline;
    text-decoration-color: var(--luna-accent-border);
    text-underline-offset: 2px;
    transition: text-decoration-color .15s ease;
}
.luna-legal a:hover { text-decoration-color: var(--luna-accent); }
.luna-legal-emphasis {
    background: var(--luna-surface);
    border-left: 2px solid var(--luna-border-strong);
    border-radius: 0 var(--luna-radius-md) var(--luna-radius-md) 0;
    padding: 0.85rem 1.1rem;
    color: var(--luna-text);
    font-size: 0.88rem;
    line-height: 1.6;
    letter-spacing: 0.005em;
}
.luna-legal-table-wrap {
    overflow-x: auto;
    margin: 0 0 1.25rem;
    border: 1px solid var(--luna-border);
    border-radius: var(--luna-radius-md);
}
.luna-legal-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    color: var(--luna-text-soft);
}
.luna-legal-table th,
.luna-legal-table td {
    text-align: left;
    padding: 0.7rem 0.85rem;
    border-bottom: 1px solid var(--luna-border);
    vertical-align: top;
}
.luna-legal-table th {
    color: var(--luna-text);
    font-weight: 600;
    background: var(--luna-surface);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.luna-legal-table tr:last-child td { border-bottom: none; }

@media (max-width: 640px) {
    .luna-legal { padding: 2rem 1.25rem 3rem; }
    .luna-legal-head { margin-bottom: 1.75rem; }
    .luna-legal section { margin: 1.75rem 0; }
}