/* ============================================================================
 * Zerolix Command — main.css
 * Dark mode default. See AD-013.
 * ============================================================================ */

:root {
    /* Surfaces */
    --bg-0:   #0a0e1a;   /* page */
    --bg-1:   #0e1424;   /* card / sidebar */
    --bg-2:   #111a30;   /* elevated */
    --bg-3:   #18233d;   /* hover */
    --border: rgba(255,255,255,0.08);
    --border-strong: rgba(255,255,255,0.14);

    /* Text */
    --fg-0:   #ffffff;
    --fg-1:   #e8eaf0;
    --fg-2:   #aab3c7;
    --fg-3:   #858fa6;

    /* Brand */
    --brand:      #00d4ff;
    --brand-dim:  #1a6cf5;
    --brand-hover:#1558d4;
    --accent:     #7aa9ff;

    /* RAG */
    --rag-red:    #ef4444;
    --rag-amber:  #f59e0b;
    --rag-green:  #22c55e;

    /* Feedback */
    --ok:       #22c55e;
    --warn:     #f59e0b;
    --err:      #ef4444;
    --info:     #60a5fa;

    /* Layout */
    --sidebar-w: 220px;
    --radius:    8px;
    --radius-lg: 12px;
    --font:      'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono:      'JetBrains Mono', 'SF Mono', 'Menlo', 'Monaco', monospace;
    --ease-out:  cubic-bezier(0.23, 1, 0.32, 1);
    --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: var(--font);
    background:
        radial-gradient(ellipse 48% 52% at 95% 0%, rgba(0, 212, 255, 0.08), transparent),
        radial-gradient(ellipse 38% 42% at 12% 100%, rgba(26, 108, 245, 0.08), transparent),
        var(--bg-0);
    color: var(--fg-1);
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--accent); }

.skip-link {
    position: fixed;
    top: -100px;
    left: 16px;
    z-index: 20;
    background: var(--brand-dim);
    color: #fff;
    padding: 8px 12px;
    border-radius: var(--radius);
    font-weight: 600;
    transition: top 180ms var(--ease-out);
}
.skip-link:focus { top: 16px; color: #fff; }

:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 3px;
    border-radius: var(--radius);
}

code, pre, .mono { font-family: var(--mono); }

/* ─── LAYOUT ──────────────────────────────────────────────────────────── */

.layout {
    display: grid;
    grid-template-columns: var(--sidebar-w) 1fr;
    min-height: 100dvh;
}

.layout--auth {
    display: grid;
    place-items: center;
    min-height: 100dvh;
}

.sidebar {
    background: rgba(14, 20, 36, 0.94);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 16px 0;
    backdrop-filter: blur(14px);
}

.sidebar__brand {
    padding: 4px 18px 20px;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.5px;
    color: var(--fg-0);
}
.sidebar__brand span { color: var(--brand); }

.sidebar__nav {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.sidebar__link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--fg-2);
    padding: 8px 18px;
    font-size: 13px;
    text-decoration: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-right: 8px;
    transition: background-color 180ms var(--ease-out), color 180ms var(--ease-out), transform 140ms var(--ease-out);
}
.sidebar__link:hover { background: rgba(255,255,255,0.045); color: var(--fg-0); }
.sidebar__link:active { transform: scale(0.99); }
.sidebar__link.is-active { background: rgba(0,212,255,0.11); color: var(--fg-0); box-shadow: inset -2px 0 0 var(--brand); }
.sidebar__link--sub { padding-left: 28px; font-size: 12.5px; }

.sidebar__glyph {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    min-width: 18px;
    height: 18px;
    border: 1px solid rgba(0,212,255,0.18);
    border-radius: 5px;
    color: var(--brand);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0;
}

.sidebar__group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--fg-3);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 10px 18px 4px;
    margin-top: 4px;
}
.sidebar__group:hover { color: var(--fg-1); }
.sidebar__chevron {
    font-size: 13px;
    font-weight: 400;
    transition: transform 180ms var(--ease-out);
    display: inline-block;
}
.sidebar__group-items {
    overflow: hidden;
    max-height: 0;
    transition: max-height 220ms var(--ease-in-out);
}

.sidebar__footer {
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--fg-3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.sidebar__footer a { color: var(--fg-2); }
.sidebar__footer a:hover { color: var(--fg-0); }

.content {
    padding: 28px clamp(20px, 4vw, 40px) 72px;
    min-width: 0;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.topbar__title {
    font-size: clamp(22px, 3vw, 30px);
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--fg-0);
    margin: 0;
    text-wrap: balance;
}

.topbar__hint {
    color: var(--fg-3);
    font-size: 12px;
}
.topbar__hint kbd {
    background: var(--bg-2);
    border: 1px solid var(--border-strong);
    border-bottom-width: 2px;
    border-radius: 4px;
    padding: 2px 6px;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--fg-1);
}

.topbar__right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topbar__alert-badge {
    background: rgba(239,68,68,0.12);
    border: 1px solid rgba(239,68,68,0.4);
    color: #fecaca;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius);
    text-decoration: none;
}
.topbar__alert-badge:hover { background: rgba(239,68,68,0.2); color: #fff; }

/* Notification level dot */
.notif-level {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}
.notif-level--info     { background: var(--info); }
.notif-level--warning  { background: var(--warn); }
.notif-level--critical { background: var(--err); }

/* ─── CARDS / SURFACES ──────────────────────────────────────────────────── */

.card {
    background: rgba(14,20,36,0.84);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: border-color 180ms var(--ease-out), background-color 180ms var(--ease-out);
}
.card:hover { border-color: rgba(255,255,255,0.12); }
.card + .card { margin-top: 16px; }
.card--flush {
    padding: 0;
    overflow: hidden;
}
.card__header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}
.card__title {
    font-weight: 700;
    font-size: 14px;
    color: var(--fg-0);
    letter-spacing: -0.01em;
}

.grid {
    display: grid;
    gap: 16px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}
.stat {
    background: rgba(14,20,36,0.86);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: border-color 180ms var(--ease-out), background-color 180ms var(--ease-out);
}
.stat:hover { border-color: rgba(0,212,255,0.2); background: rgba(17,26,48,0.9); }
.stat__label { color: var(--fg-3); font-size: 12px; letter-spacing: 0; }
.stat__value { font-size: 28px; font-weight: 700; letter-spacing: -0.03em; color: var(--fg-0); margin-top: 6px; }
.stat__hint  { color: var(--fg-3); font-size: 12px; margin-top: 4px; }

.meta-list {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 8px 14px;
    margin: 0;
}
.meta-list dt {
    color: var(--fg-3);
    font-size: 12px;
}
.meta-list dd {
    margin: 0;
    color: var(--fg-1);
    min-width: 0;
    overflow-wrap: anywhere;
}

/* ─── TABLES ────────────────────────────────────────────────────────────── */

table.table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(14,20,36,0.84);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
table.table th, table.table td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
table.table th {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--fg-3);
    background: var(--bg-2);
    font-weight: 500;
}
table.table tbody tr:last-child td { border-bottom: none; }
table.table tbody tr:hover { background: var(--bg-2); }

/* ─── BADGES / RAG ──────────────────────────────────────────────────────── */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 500;
    background: var(--bg-3);
    color: var(--fg-1);
    border: 1px solid var(--border-strong);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.badge--sm { font-size: 10px; padding: 2px 7px; }
.badge--red      { background: rgba(239, 68, 68, 0.12);  color: var(--rag-red);   border-color: rgba(239, 68, 68, 0.35); }
.badge--amber    { background: rgba(245, 158, 11, 0.12); color: var(--rag-amber); border-color: rgba(245, 158, 11, 0.35); }
.badge--green    { background: rgba(34, 197, 94, 0.12);  color: var(--rag-green); border-color: rgba(34, 197, 94, 0.35); }
.badge--info     { background: rgba(96, 165, 250, 0.12); color: var(--info);      border-color: rgba(96, 165, 250, 0.35); }
.badge--critical { background: rgba(239, 68, 68, 0.15);  color: var(--rag-red);   border-color: rgba(239, 68, 68, 0.4); }
.badge--high     { background: rgba(245, 158, 11, 0.15); color: var(--rag-amber); border-color: rgba(245, 158, 11, 0.4); }
.badge--medium   { background: rgba(96, 165, 250, 0.12); color: #60a5fa;          border-color: rgba(96, 165, 250, 0.35); }
.badge--low      { background: var(--bg-3); color: var(--fg-3); }

.row--overdue td { background: rgba(239, 68, 68, 0.04); }
.text--red { color: var(--rag-red); }
.input--sm { padding: 4px 8px; font-size: 12px; }

.table--flush {
    margin: 0;
    border: 0;
    border-radius: 0;
}
.table--borderless {
    border: 0;
    background: transparent;
}
.table--borderless td,
.table--borderless th {
    border-bottom: 0;
    padding-left: 0;
}
.table__primary-link {
    color: var(--fg-0);
    font-size: 13px;
    font-weight: 600;
}
.table__score {
    font-weight: 700;
    font-size: 13px;
}
.table__narrow { width: 72px; }
.table__risk-cell { width: 132px; }

.risk-meter {
    display: flex;
    align-items: center;
    gap: 8px;
}
.risk-meter__track {
    flex: 1;
    height: 5px;
    background: var(--bg-2);
    border-radius: 999px;
    overflow: hidden;
}
.risk-meter__bar {
    height: 100%;
    border-radius: inherit;
}
.risk-meter__bar--red { background: var(--rag-red); }
.risk-meter__bar--amber { background: var(--rag-amber); }
.risk-meter__bar--green { background: var(--rag-green); }
.risk-meter__value {
    color: var(--fg-2);
    font-size: 11px;
    min-width: 26px;
    font-family: var(--mono);
}

.dashboard-shell {
    max-width: 1280px;
}
.dashboard-stat-grid {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 16px;
}
.empty-state {
    padding: 28px;
    text-align: center;
    color: var(--fg-3);
    font-size: 13px;
}

/* ─── FORMS ─────────────────────────────────────────────────────────────── */

.form { display: flex; flex-direction: column; gap: 14px; }
.form__row { display: flex; flex-direction: column; gap: 6px; }
.form__row label { font-size: 12px; color: var(--fg-2); }
.form__row .hint { font-size: 11px; color: var(--fg-3); }

.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.label { font-size: 12px; color: var(--fg-2); font-weight: 500; }
.form-error { font-size: 12px; color: var(--rag-red); margin-top: 3px; }

.input, .select, .textarea {
    background: var(--bg-0);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    padding: 10px 12px;
    color: var(--fg-0);
    font-family: var(--font);
    font-size: 14px;
    width: 100%;
    outline: none;
    transition: border-color 160ms var(--ease-out), background-color 160ms var(--ease-out), box-shadow 160ms var(--ease-out);
}
.input:focus, .select:focus, .textarea:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}
.textarea { min-height: 100px; resize: vertical; }

.form-input, .form-select {
    background: var(--bg-0);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    padding: 10px 12px;
    color: var(--fg-0);
    font-family: var(--font);
    font-size: 14px;
    outline: none;
    transition: border-color 160ms var(--ease-out), box-shadow 160ms var(--ease-out);
}
.form-input:focus, .form-select:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}

.checkbox { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--fg-1); }

.errors { color: var(--err); font-size: 12px; margin: 0; padding: 0; list-style: none; }
.errors li:before { content: "! "; }

/* ─── BUTTONS ───────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font);
    border-radius: var(--radius);
    border: 1px solid var(--border-strong);
    background: var(--bg-2);
    color: var(--fg-0);
    cursor: pointer;
    text-decoration: none;
    min-height: 36px;
    transition: background-color 180ms var(--ease-out), border-color 180ms var(--ease-out), color 180ms var(--ease-out), transform 140ms var(--ease-out);
}
.btn:hover { background: var(--bg-3); }
.btn:active { transform: scale(0.97); }
.btn--primary { background: var(--brand-dim); color: #fff; border-color: var(--brand-dim); }
.btn--primary:hover { background: var(--brand-hover); border-color: var(--brand-hover); color: #fff; }
.btn--danger { background: transparent; color: var(--err); border-color: rgba(239, 68, 68, 0.45); }
.btn--ghost  { background: transparent; color: var(--fg-2); border-color: transparent; }
.btn--ghost:hover { color: var(--fg-0); background: var(--bg-2); }
.btn--block  { width: 100%; }
.btn--sm { min-height: 30px; padding: 5px 12px; font-size: 12px; }

/* ─── FLASH MESSAGES ────────────────────────────────────────────────────── */

.flash-stack { margin-bottom: 16px; display: flex; flex-direction: column; gap: 8px; }
.flash {
    padding: 10px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border-strong);
    background: var(--bg-2);
    color: var(--fg-1);
    font-size: 13px;
}
.flash--success { border-color: rgba(34, 197, 94, 0.4);  background: rgba(34, 197, 94, 0.08);  color: var(--ok); }
.flash--warning { border-color: rgba(245, 158, 11, 0.4); background: rgba(245, 158, 11, 0.08); color: var(--warn); }
.flash--error   { border-color: rgba(239, 68, 68, 0.4);  background: rgba(239, 68, 68, 0.08);  color: var(--err); }
.flash--info    { border-color: rgba(96, 165, 250, 0.4); background: rgba(96, 165, 250, 0.08); color: var(--info); }

/* ─── AUTH CARD ─────────────────────────────────────────────────────────── */

.auth-card {
    width: 380px;
    max-width: 92vw;
    background: rgba(14,20,36,0.9);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: 0 8px 8px rgba(0,0,0,0.18);
}
.auth-card h1 {
    font-size: 20px;
    margin: 0 0 4px 0;
    color: var(--fg-0);
}
.auth-card p.muted {
    color: var(--fg-3);
    margin: 0 0 20px 0;
    font-size: 13px;
}

.auth-brand {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--fg-0);
    letter-spacing: 0.5px;
}
.auth-brand span { color: var(--brand); }

.auth-actions {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.auth-links {
    margin: 14px 0 0 0;
    text-align: center;
    font-size: 12px;
}
.auth-links a { color: var(--fg-2); text-decoration: none; }
.auth-links a:hover { color: var(--brand); }

/* ─── COMMAND PALETTE ───────────────────────────────────────────────────── */

.cmdk-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 18vh;
    z-index: 15;
}
.cmdk-overlay.is-open { display: flex; }

.cmdk {
    width: 520px;
    max-width: 92vw;
    background: rgba(14,20,36,0.98);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 8px rgba(0,0,0,0.22);
    overflow: hidden;
}
.cmdk input {
    width: 100%;
    border: none;
    background: transparent;
    color: var(--fg-0);
    padding: 16px 18px;
    font-size: 15px;
    font-family: var(--font);
    outline: none;
    border-bottom: 1px solid var(--border);
}
.cmdk__list { list-style: none; margin: 0; padding: 6px; max-height: 52vh; overflow-y: auto; }
.cmdk__item {
    padding: 10px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    color: var(--fg-1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.cmdk__item:hover,
.cmdk__item.is-active { background: var(--bg-3); color: var(--fg-0); }
.cmdk__item small { color: var(--fg-3); font-size: 11px; text-transform: uppercase; letter-spacing: 0.3px; }
.cmdk__empty { padding: 16px; color: var(--fg-3); font-size: 13px; text-align: center; }

/* ─── UTILITIES ─────────────────────────────────────────────────────────── */

.muted { color: var(--fg-3); }
.row   { display: flex; align-items: center; gap: 12px; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.ml-4  { margin-left: 4px; }
.ml-8  { margin-left: 8px; }
.mr-8  { margin-right: 8px; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.text-sm { font-size: 12px; }
.text-lg { font-size: 16px; }
.hide { display: none !important; }

/* ─── AGENTS INDEX ──────────────────────────────────────────────────────── */

.agent-client-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.agent-client-card {
    background: rgba(14,20,36,0.84);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.agent-client-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.agent-client-card__name {
    font-weight: 600;
    font-size: 15px;
    color: var(--fg-0);
}

.agent-client-card__agents {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.agent-quick-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    color: var(--fg-1);
    text-decoration: none;
    transition: background-color 180ms var(--ease-out), border-color 180ms var(--ease-out), color 180ms var(--ease-out), transform 140ms var(--ease-out);
}

.agent-quick-btn:hover {
    background: var(--bg-3);
    border-color: var(--accent);
    color: var(--fg-0);
}

/* ─── AGENT TABS ────────────────────────────────────────────────────────── */

.agent-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
    overflow-x: auto;
}

.agent-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 6px 6px 0 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--fg-2);
    text-decoration: none;
    border: 1px solid transparent;
    border-bottom: none;
    white-space: nowrap;
    transition: color 180ms var(--ease-out), background-color 180ms var(--ease-out);
}

.agent-tab:hover { color: var(--fg-0); background: var(--bg-2); }

.agent-tab--active {
    color: var(--fg-0);
    background: var(--bg-1);
    border-color: var(--border);
    border-bottom-color: var(--bg-1);
    margin-bottom: -1px;
}

/* ─── CHAT LAYOUT ───────────────────────────────────────────────────────── */

.chat-layout {
    display: flex;
    flex-direction: column;
    height: calc(100dvh - 220px);
    min-height: 400px;
}

.chat-history {
    flex: 1;
    overflow-y: auto;
    padding: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px 20px;
    color: var(--fg-2);
}

.chat-empty__icon { font-size: 40px; margin-bottom: 12px; }
.chat-empty__title { font-size: 18px; font-weight: 600; color: var(--fg-0); margin-bottom: 8px; }
.chat-empty__hint { font-size: 13px; max-width: 420px; line-height: 1.6; }
.chat-empty__hints { display: flex; flex-direction: column; gap: 6px; width: 100%; max-width: 440px; }

.chat-hint-btn {
    background: var(--bg-2);
    border: 1px solid var(--border);
    color: var(--fg-1);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    text-align: left;
    transition: background-color 180ms var(--ease-out), border-color 180ms var(--ease-out), transform 140ms var(--ease-out);
}
.chat-hint-btn:hover { background: var(--bg-3); border-color: var(--border-strong); }
.chat-hint-btn:active { transform: scale(0.98); }

/* ─── CHAT MESSAGES ─────────────────────────────────────────────────────── */

.chat-msg {
    display: flex;
    flex-direction: column;
    max-width: 82%;
    gap: 4px;
}

.chat-msg--user {
    align-self: flex-end;
    align-items: flex-end;
}

.chat-msg--assistant {
    align-self: flex-start;
    align-items: flex-start;
}

.chat-msg__meta {
    font-size: 11px;
    color: var(--fg-3);
    display: flex;
    gap: 8px;
    align-items: center;
}

.chat-msg__time { opacity: 0.7; }

.chat-msg__body {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.65;
    color: var(--fg-1);
    word-break: break-word;
    white-space: pre-wrap;
}

.chat-msg--user .chat-msg__body {
    background: var(--brand-dim);
    border-color: var(--brand-dim);
    color: #fff;
}

.chat-msg__body strong { color: var(--fg-0); }
.chat-msg__body code {
    background: var(--bg-3);
    padding: 1px 5px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 12px;
    color: var(--brand);
}

.chat-tool-call {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    padding: 3px 8px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--fg-2);
    margin-top: 4px;
}
.chat-tool-call__name { color: var(--brand-dim); font-weight: 500; }
.chat-tool-call__ok { color: var(--rag-green); }
.chat-tool-call__err { color: var(--rag-red); }
.chat-tool-call__link { color: var(--accent); font-size: 0.75rem; text-decoration: none; margin-left: 6px; }
.chat-tool-call__link:hover { text-decoration: underline; }

/* Typing indicator */
.chat-msg--typing .chat-msg__body {
    background: var(--bg-2);
    padding: 12px 16px;
}

.typing-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--fg-3);
    border-radius: 50%;
    margin: 0 2px;
    animation: typingBounce 1.2s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30%           { transform: translateY(-4px); opacity: 1; }
}

/* ─── CHAT INPUT ────────────────────────────────────────────────────────── */

.chat-input-area {
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.chat-form {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.chat-textarea {
    flex: 1;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 14px;
    color: var(--fg-0);
    resize: none;
    min-height: 42px;
    max-height: 200px;
    line-height: 1.5;
    font-family: inherit;
    transition: border-color 160ms var(--ease-out), box-shadow 160ms var(--ease-out);
}
.chat-textarea:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}
.chat-textarea::placeholder { color: var(--fg-3); }

.chat-send {
    flex-shrink: 0;
    height: 42px;
    padding: 0 18px;
}

.chat-footer-hint {
    margin-top: 6px;
    font-size: 11px;
    color: var(--fg-3);
    text-align: center;
}

/* ─── RESPONSIVE ────────────────────────────────────────────────────────── */

@media (max-width: 720px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .content { padding: 16px; }
    .topbar { align-items: flex-start; gap: 12px; flex-direction: column; }
    .topbar__right { align-items: flex-start; flex-wrap: wrap; gap: 10px; }
    .dashboard-grid { grid-template-columns: 1fr; }
    .chat-msg { max-width: 95%; }
}

@media (max-width: 980px) {
    .dashboard-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 1ms !important;
    }
    .chat-history { scroll-behavior: auto; }
}


/* ─── LANGUAGE SWITCH ─────────────────────────────────────────────────── */
.zc-lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 2px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-2);
}

.zc-lang-btn {
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--fg-2);
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    padding: 6px 8px;
    cursor: pointer;
}

.zc-lang-btn.is-active {
    background: var(--brand);
    color: #061019;
}

.zc-auth-lang-switch {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 20;
}