/* ============================================================================
   QCI AI Intelligence Dashboard — Premium design system
   Glassmorphism · gradients · dark/light theming · responsive
   ============================================================================ */

:root {
    /* Brand gradients */
    --grad-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
    --grad-primary-hover: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #0891b2 100%);
    --grad-accent: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
    --grad-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --grad-text: linear-gradient(135deg, #818cf8 0%, #c084fc 50%, #22d3ee 100%);

    --c-indigo: #6366f1;
    --c-violet: #8b5cf6;
    --c-cyan: #06b6d4;
    --c-emerald: #10b981;
    --c-amber: #f59e0b;
    --c-rose: #f43f5e;

    --radius-sm: 10px;
    --radius: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;

    --shadow-sm: 0 2px 8px rgba(15, 23, 42, .08);
    --shadow: 0 12px 32px rgba(15, 23, 42, .12);
    --shadow-lg: 0 24px 60px rgba(15, 23, 42, .22);
    --transition: 220ms cubic-bezier(.4, 0, .2, 1);

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* ---- Dark theme (default) ---- */
[data-theme="dark"] {
    --bg-base: #0b1020;
    --bg-gradient: radial-gradient(1200px 800px at 10% -10%, rgba(99, 102, 241, .25), transparent 60%),
                   radial-gradient(1000px 700px at 100% 0%, rgba(6, 182, 212, .18), transparent 55%),
                   radial-gradient(900px 900px at 50% 120%, rgba(139, 92, 246, .18), transparent 60%),
                   #070b18;
    --glass-bg: rgba(22, 28, 48, .55);
    --glass-border: rgba(148, 163, 184, .16);
    --glass-hover: rgba(30, 38, 64, .7);
    --surface: rgba(17, 23, 42, .7);
    --text: #e8edf7;
    --text-muted: #97a3bb;
    --text-faint: #67728c;
    --sidebar-bg: rgba(12, 17, 33, .72);
    --input-bg: rgba(13, 18, 35, .8);
    --table-row-hover: rgba(99, 102, 241, .08);
    --code-bg: #0a0f1f;
}

/* ---- Light theme ---- */
[data-theme="light"] {
    --bg-base: #eef2fb;
    --bg-gradient: radial-gradient(1200px 800px at 10% -10%, rgba(99, 102, 241, .16), transparent 60%),
                   radial-gradient(1000px 700px at 100% 0%, rgba(6, 182, 212, .12), transparent 55%),
                   radial-gradient(900px 900px at 50% 120%, rgba(139, 92, 246, .12), transparent 60%),
                   #eaeefb;
    --glass-bg: rgba(255, 255, 255, .72);
    --glass-border: rgba(15, 23, 42, .08);
    --glass-hover: rgba(255, 255, 255, .9);
    --surface: rgba(255, 255, 255, .85);
    --text: #1e2748;
    --text-muted: #586079;
    --text-faint: #8a93ad;
    --sidebar-bg: rgba(255, 255, 255, .8);
    --input-bg: rgba(255, 255, 255, .9);
    --table-row-hover: rgba(99, 102, 241, .06);
    --code-bg: #0f1629;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg-base);
    background-image: var(--bg-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
::selection { background: rgba(139, 92, 246, .35); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(139, 92, 246, .35); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---- Utility ---- */
.gradient-text {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.text-muted-2 { color: var(--text-muted); }
.text-faint { color: var(--text-faint); }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }

/* ---- Glass card ---- */
.glass {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: var(--shadow);
}
.card-pad { padding: 22px 24px; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font); font-weight: 600; font-size: .92rem;
    padding: 11px 20px; border-radius: var(--radius-sm); border: 0; cursor: pointer;
    transition: var(--transition); color: #fff; background: var(--grad-primary);
    box-shadow: 0 8px 22px rgba(99, 102, 241, .35);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(99, 102, 241, .45); background: var(--grad-primary-hover); }
.btn:active { transform: translateY(0); }
.btn-ghost {
    background: transparent; color: var(--text); border: 1px solid var(--glass-border);
    box-shadow: none;
}
.btn-ghost:hover { background: var(--glass-hover); transform: translateY(-1px); box-shadow: none; }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 7px 14px; font-size: .82rem; }

/* ---- Forms ---- */
.field { margin-bottom: 18px; }
.field label { display: block; font-size: .82rem; font-weight: 600; color: var(--text-muted); margin-bottom: 7px; }
.input {
    width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
    background: var(--input-bg); border: 1px solid var(--glass-border);
    color: var(--text); font-family: var(--font); font-size: .95rem; transition: var(--transition);
}
.input:focus { outline: none; border-color: var(--c-violet); box-shadow: 0 0 0 4px rgba(139, 92, 246, .18); }
.input::placeholder { color: var(--text-faint); }
.checkbox { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: .88rem; cursor: pointer; }

/* ---- Badges ---- */
.badge {
    display: inline-flex; align-items: center; gap: 6px; padding: 4px 11px; border-radius: 999px;
    font-size: .74rem; font-weight: 700; letter-spacing: .02em;
}
.badge-success { background: rgba(16, 185, 129, .16); color: #34d399; }
.badge-warning { background: rgba(245, 158, 11, .16); color: #fbbf24; }
.badge-danger  { background: rgba(244, 63, 94, .16); color: #fb7185; }
.badge-info    { background: rgba(99, 102, 241, .16); color: #a5b4fc; }

/* ============================ APP SHELL ============================ */
.app { display: grid; grid-template-columns: 264px 1fr; min-height: 100vh; }

.sidebar {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 22px 16px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
    display: flex; flex-direction: column;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 6px 10px 22px; }
.brand-logo {
    width: 42px; height: 42px; border-radius: 12px; background: var(--grad-primary);
    display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 1.1rem;
    box-shadow: 0 8px 20px rgba(99, 102, 241, .45);
}
.brand-name { font-weight: 800; font-size: 1.04rem; letter-spacing: -.01em; }
.brand-sub { font-size: .68rem; color: var(--text-faint); letter-spacing: .14em; text-transform: uppercase; }

.nav-group-label { font-size: .68rem; text-transform: uppercase; letter-spacing: .14em; color: var(--text-faint); padding: 16px 12px 8px; }
.nav-link {
    display: flex; align-items: center; gap: 12px; padding: 11px 13px; border-radius: 12px;
    color: var(--text-muted); font-weight: 600; font-size: .9rem; margin-bottom: 3px;
    transition: var(--transition); position: relative;
}
.nav-link svg { width: 19px; height: 19px; flex: none; }
.nav-link:hover { background: var(--glass-hover); color: var(--text); transform: translateX(3px); }
.nav-link.active { color: #fff; background: var(--grad-primary); box-shadow: 0 8px 20px rgba(99, 102, 241, .4); }
.sidebar-footer { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--glass-border); }

.main { min-width: 0; display: flex; flex-direction: column; }

.topbar {
    display: flex; align-items: center; gap: 16px; padding: 16px 28px;
    position: sticky; top: 0; z-index: 20;
    background: var(--glass-bg); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--glass-border);
}
.topbar h1 { font-size: 1.18rem; font-weight: 800; margin: 0; letter-spacing: -.02em; }
.topbar .spacer { flex: 1; }
.icon-btn {
    width: 40px; height: 40px; border-radius: 11px; border: 1px solid var(--glass-border);
    background: var(--surface); color: var(--text); display: grid; place-items: center; cursor: pointer;
    transition: var(--transition);
}
.icon-btn:hover { background: var(--glass-hover); transform: translateY(-2px); }
.avatar {
    width: 40px; height: 40px; border-radius: 11px; background: var(--grad-primary);
    display: grid; place-items: center; color: #fff; font-weight: 700;
}
.user-chip { display: flex; align-items: center; gap: 10px; }
.user-chip .nm { font-size: .86rem; font-weight: 700; line-height: 1.1; }
.user-chip .rl { font-size: .72rem; color: var(--text-faint); }

.content { padding: 28px; flex: 1; }
.page-head { margin-bottom: 22px; }
.page-head .ttl { font-size: 1.7rem; font-weight: 800; letter-spacing: -.02em; margin: 0; }
.page-head .sub { color: var(--text-muted); margin-top: 4px; }

/* ---- Stat cards grid ---- */
.grid { display: grid; gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.stat {
    padding: 20px 22px; position: relative; overflow: hidden;
    transition: var(--transition);
}
.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.stat .ico {
    width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
    margin-bottom: 14px; color: #fff;
}
.stat .lbl { font-size: .8rem; color: var(--text-muted); font-weight: 600; }
.stat .val { font-size: 1.85rem; font-weight: 800; letter-spacing: -.02em; margin-top: 2px; }
.stat .meta { font-size: .76rem; color: var(--text-faint); margin-top: 6px; }
.ico-indigo  { background: linear-gradient(135deg, #6366f1, #818cf8); }
.ico-violet  { background: linear-gradient(135deg, #8b5cf6, #a78bfa); }
.ico-cyan    { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.ico-emerald { background: linear-gradient(135deg, #10b981, #34d399); }
.ico-amber   { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.ico-rose    { background: linear-gradient(135deg, #f43f5e, #fb7185); }

/* ---- Chart card ---- */
.chart-card { padding: 20px 22px; }
.chart-card .ch-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.chart-card .ch-title { font-weight: 700; font-size: 1rem; }
.chart-wrap { position: relative; height: 280px; }
.chart-wrap.sm { height: 240px; }

/* ---- Tables ---- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table.qtable { width: 100%; border-collapse: collapse; font-size: .88rem; }
table.qtable th {
    text-align: left; padding: 13px 16px; color: var(--text-faint);
    font-weight: 700; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em;
    border-bottom: 1px solid var(--glass-border);
}
table.qtable td { padding: 13px 16px; border-bottom: 1px solid var(--glass-border); color: var(--text); }
table.qtable tbody tr { transition: background var(--transition); }
table.qtable tbody tr:hover { background: var(--table-row-hover); }

/* ---- Filters bar ---- */
.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.filters .field { margin: 0; min-width: 160px; }
.filters .input, .filters select.input { padding: 9px 12px; }

/* ---- Skeleton loading ---- */
.skeleton {
    background: linear-gradient(100deg, rgba(148,163,184,.08) 30%, rgba(148,163,184,.22) 50%, rgba(148,163,184,.08) 70%);
    background-size: 200% 100%; animation: shimmer 1.3s infinite; border-radius: 8px;
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---- Animations ---- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp .5s both; }
.delay-1 { animation-delay: .06s; } .delay-2 { animation-delay: .12s; }
.delay-3 { animation-delay: .18s; } .delay-4 { animation-delay: .24s; }
.delay-5 { animation-delay: .3s; } .delay-6 { animation-delay: .36s; }
.delay-7 { animation-delay: .42s; } .delay-8 { animation-delay: .48s; }

/* ---- Alerts ---- */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: .88rem; margin-bottom: 16px; border: 1px solid transparent; }
.alert-danger { background: rgba(244,63,94,.12); border-color: rgba(244,63,94,.3); color: #fb7185; }
.alert-info { background: rgba(99,102,241,.12); border-color: rgba(99,102,241,.3); color: #a5b4fc; }
.alert-warning { background: rgba(245,158,11,.12); border-color: rgba(245,158,11,.3); color: #fbbf24; }

@media (max-width: 980px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .app { grid-template-columns: 1fr; }
    .sidebar { position: fixed; left: 0; top: 0; z-index: 50; width: 264px; transform: translateX(-100%); transition: transform var(--transition); }
    .sidebar.open { transform: translateX(0); }
    .menu-toggle { display: grid !important; }
}
.menu-toggle { display: none; }

/* ============================ ADMIN ============================ */
.admin-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; padding: 6px; border-radius: var(--radius); background: var(--glass-bg); border: 1px solid var(--glass-border); }
.admin-tab { padding: 9px 16px; border-radius: 10px; font-size: .86rem; font-weight: 600; color: var(--text-muted); transition: var(--transition); }
.admin-tab:hover { background: var(--glass-hover); color: var(--text); }
.admin-tab.active { background: var(--grad-primary); color: #fff; box-shadow: 0 6px 16px rgba(99,102,241,.4); }

.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }
.toolbar .search { min-width: 220px; }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.form-actions { display: flex; gap: 12px; margin-top: 24px; }

.perm-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.perm-item { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--glass-border); cursor: pointer; transition: var(--transition); }
.perm-item:hover { border-color: rgba(139,92,246,.4); }
.perm-item input { width: 18px; height: 18px; accent-color: var(--c-violet); }
.perm-item .pc { font-weight: 600; font-size: .86rem; }
.perm-item .pd { font-size: .74rem; color: var(--text-faint); }

.row-actions { display: flex; gap: 8px; }
.icon-action { width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--glass-border); background: var(--surface); color: var(--text-muted); display: grid; place-items: center; cursor: pointer; transition: var(--transition); }
.icon-action:hover { background: var(--glass-hover); color: var(--text); }
.icon-action.danger:hover { background: rgba(244,63,94,.15); color: #fb7185; border-color: rgba(244,63,94,.4); }

.flash { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 18px; font-size: .9rem; font-weight: 500; }
.flash-success { background: rgba(16,185,129,.14); border: 1px solid rgba(16,185,129,.3); color: #34d399; }
.flash-error { background: rgba(244,63,94,.14); border: 1px solid rgba(244,63,94,.3); color: #fb7185; }

@media (max-width: 760px) { .form-grid, .perm-grid { grid-template-columns: 1fr; } }