/* ==========================================================================
   FileVault PRO - assets/css/app.css
   Design system + public site + admin dashboard.
   Dark by default, light via [data-theme="light"].
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --bg:            #0b0e14;
  --bg-elev:       #11151f;
  --bg-elev-2:     #161b27;
  --bg-hover:      #1c2231;
  --surface:       rgba(255,255,255,.03);
  --border:        rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.14);

  --text:      #e6e9ef;
  --text-dim:  #9aa3b2;
  --text-mute: #6b7486;

  --accent:      #6366f1;
  --accent-hi:   #818cf8;
  --accent-soft: rgba(99,102,241,.14);

  --success:      #22c55e;
  --success-soft: rgba(34,197,94,.14);
  --warning:      #f59e0b;
  --warning-soft: rgba(245,158,11,.14);
  --danger:       #ef4444;
  --danger-soft:  rgba(239,68,68,.14);
  --info:         #38bdf8;
  --info-soft:    rgba(56,189,248,.14);

  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow:    0 4px 16px rgba(0,0,0,.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.45);

  --sidebar-w: 256px;
  --topbar-h:  64px;
  --container: 1360px;

  --t-fast: 120ms cubic-bezier(.4,0,.2,1);
  --t:      200ms cubic-bezier(.4,0,.2,1);
}

[data-theme="light"] {
  --bg:            #f5f6fa;
  --bg-elev:       #ffffff;
  --bg-elev-2:     #ffffff;
  --bg-hover:      #eef0f6;
  --surface:       rgba(15,23,42,.02);
  --border:        rgba(15,23,42,.09);
  --border-strong: rgba(15,23,42,.16);

  --text:      #10141c;
  --text-dim:  #4b5568;
  --text-mute: #7b8496;

  --accent-soft: rgba(99,102,241,.10);
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow:    0 4px 16px rgba(15,23,42,.08);
  --shadow-lg: 0 16px 48px rgba(15,23,42,.12);
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
h1,h2,h3,h4,h5 { line-height: 1.25; font-weight: 700; letter-spacing: -.015em; }
h1 { font-size: 1.85rem; } h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }  h4 { font-size: .98rem; }
code, kbd, pre { font-family: var(--font-mono); font-size: .875em; }

::selection { background: var(--accent); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 6px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-mute); }

:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 2px; border-radius: 4px; }

.ic { flex: none; }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.muted { color: var(--text-mute); }
.dim   { color: var(--text-dim); }
.mono  { font-family: var(--font-mono); }
.nowrap{ white-space: nowrap; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.center { text-align: center; }
.right  { text-align: right; }
.hidden, [hidden] { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.row  { display: flex; align-items: center; gap: 10px; }
.row--between { justify-content: space-between; }
.row--wrap { flex-wrap: wrap; }
.col  { display: flex; flex-direction: column; gap: 10px; }
.grow { flex: 1 1 auto; min-width: 0; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-16 { gap: 16px; } .gap-24 { gap: 24px; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }

/* --------------------------------------------------------------------------
   3. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elev-2);
  color: var(--text);
  font-weight: 600; font-size: .9rem;
  cursor: pointer; white-space: nowrap;
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}
.btn:hover  { background: var(--bg-hover); border-color: var(--border-strong); }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn.is-loading { opacity: .55; pointer-events: none; }

.btn--primary {
  background: var(--accent); border-color: var(--accent); color: #fff;
  box-shadow: 0 2px 12px rgba(99,102,241,.28);
}
.btn--primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); }

.btn--success { background: var(--success); border-color: var(--success); color: #04160a; }
.btn--danger  { background: var(--danger);  border-color: var(--danger);  color: #fff; }
.btn--warning { background: var(--warning); border-color: var(--warning); color: #291a00; }
.btn--ghost   { background: transparent; border-color: transparent; }
.btn--ghost:hover { background: var(--surface); }
.btn--outline { background: transparent; }

.btn--sm  { padding: 6px 11px; font-size: .82rem; border-radius: 7px; }
.btn--lg  { padding: 13px 26px; font-size: 1rem; }
.btn--block { width: 100%; }
.btn--icon { padding: 9px; border-radius: var(--radius-sm); }

.btn-group { display: inline-flex; gap: 6px; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   4. Forms
   -------------------------------------------------------------------------- */
.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 18px; }
.field__label { font-size: .84rem; font-weight: 600; color: var(--text-dim); }
.field__hint  { font-size: .78rem; color: var(--text-mute); }
.field__error { font-size: .8rem; color: var(--danger); }
.field--req .field__label::after { content: ' *'; color: var(--danger); }

.input, .select, .textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: .92rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}
[data-theme="light"] .input,
[data-theme="light"] .select,
[data-theme="light"] .textarea { background: #fff; }

.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.input::placeholder, .textarea::placeholder { color: var(--text-mute); }
.textarea { resize: vertical; min-height: 110px; line-height: 1.6; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%239aa3b2'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; background-size: 18px;
  padding-right: 36px;
}
.input:disabled, .select:disabled, .textarea:disabled { opacity: .5; cursor: not-allowed; }

.check { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; padding: 4px 0; }
.check input[type=checkbox], .check input[type=radio] { width: 17px; height: 17px; margin-top: 2px; accent-color: var(--accent); cursor: pointer; flex: none; }
.check__text { font-size: .9rem; }
.check__text small { display: block; color: var(--text-mute); font-size: .78rem; }

.input-group { display: flex; }
.input-group .input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-group .btn   { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; border-left: 0; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0 18px; }

/* file drop zone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 34px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--t), background var(--t);
  background: var(--surface);
}
.dropzone:hover, .dropzone.is-over { border-color: var(--accent); background: var(--accent-soft); }
.dropzone__icon { color: var(--accent); margin: 0 auto 10px; }
.dropzone__name { margin-top: 10px; font-weight: 600; color: var(--accent-hi); word-break: break-all; }
.dropzone input[type=file] { display: none; }

.progress { height: 6px; background: var(--bg-hover); border-radius: 99px; overflow: hidden; }
.progress__bar { height: 100%; background: var(--accent); width: 0; transition: width .2s linear; }

/* --------------------------------------------------------------------------
   5. Cards, panels, badges
   -------------------------------------------------------------------------- */
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.panel__head {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.panel__title { font-size: .95rem; font-weight: 700; display: flex; align-items: center; gap: 9px; }
.panel__body { padding: 20px; }
.panel__body--flush { padding: 0; }
.panel__foot { padding: 14px 20px; border-top: 1px solid var(--border); background: var(--surface); }

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px;
  font-size: .73rem; font-weight: 700; letter-spacing: .02em;
  border-radius: 99px;
  background: var(--surface); border: 1px solid var(--border);
  white-space: nowrap;
}
.badge--success { background: var(--success-soft); color: var(--success); border-color: transparent; }
.badge--danger  { background: var(--danger-soft);  color: var(--danger);  border-color: transparent; }
.badge--warning { background: var(--warning-soft); color: var(--warning); border-color: transparent; }
.badge--info    { background: var(--info-soft);    color: var(--info);    border-color: transparent; }
.badge--accent  { background: var(--accent-soft);  color: var(--accent-hi); border-color: transparent; }
.badge--new     { background: var(--accent); color: #fff; border-color: transparent; }

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 99px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: .82rem; color: var(--text-dim);
  transition: all var(--t-fast);
}
a.pill:hover { border-color: var(--accent); color: var(--accent-hi); }

/* stat tiles */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; }
.stat-card {
  position: relative; overflow: hidden;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
  transition: transform var(--t), border-color var(--t);
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.stat-card__icon {
  width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center; margin-bottom: 12px;
  background: var(--accent-soft); color: var(--accent-hi);
}
.stat-card--success .stat-card__icon { background: var(--success-soft); color: var(--success); }
.stat-card--warning .stat-card__icon { background: var(--warning-soft); color: var(--warning); }
.stat-card--danger  .stat-card__icon { background: var(--danger-soft);  color: var(--danger); }
.stat-card--info    .stat-card__icon { background: var(--info-soft);    color: var(--info); }
.stat-card__value { font-size: 1.85rem; font-weight: 800; letter-spacing: -.03em; line-height: 1.1; }
.stat-card__label { font-size: .8rem; color: var(--text-mute); margin-top: 3px; font-weight: 500; }
.stat-card__delta { font-size: .76rem; margin-top: 7px; font-weight: 600; }
.stat-card__delta--up   { color: var(--success); }
.stat-card__delta--down { color: var(--danger); }

/* --------------------------------------------------------------------------
   6. Tables
   -------------------------------------------------------------------------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table { font-size: .88rem; min-width: 640px; }
.table thead th {
  text-align: left; padding: 12px 16px;
  font-size: .74rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-mute);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  white-space: nowrap; position: sticky; top: 0; z-index: 2;
}
.table tbody td { padding: 13px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tbody tr { transition: background var(--t-fast); }
.table tbody tr:hover { background: var(--surface); }
.table tbody tr:last-child td { border-bottom: 0; }
.table td.actions { white-space: nowrap; text-align: right; }
.table .col-check { width: 40px; }
.table input[type=checkbox] { accent-color: var(--accent); width: 16px; height: 16px; cursor: pointer; }

.table-title { font-weight: 600; color: var(--text); }
.table-sub   { font-size: .78rem; color: var(--text-mute); }

.empty-state { padding: 56px 24px; text-align: center; color: var(--text-mute); }
.empty-state svg { margin: 0 auto 14px; opacity: .35; }
.empty-state h3 { color: var(--text-dim); margin-bottom: 5px; }

/* --------------------------------------------------------------------------
   7. Public site
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--topbar-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner { display: flex; align-items: center; gap: 18px; height: 100%; }

.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.06rem; letter-spacing: -.02em; }
.brand__logo {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #a855f7);
  color: #fff; box-shadow: 0 3px 12px rgba(99,102,241,.35);
}
.brand__pro {
  font-size: .58rem; font-weight: 800; letter-spacing: .1em;
  padding: 2px 6px; border-radius: 5px;
  background: var(--accent-soft); color: var(--accent-hi);
  align-self: flex-start; margin-top: 2px;
}

.searchbox { position: relative; flex: 1 1 auto; max-width: 460px; }
.searchbox svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-mute); pointer-events: none; }
.searchbox .input { padding-left: 40px; border-radius: 99px; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 13px; border-radius: var(--radius-sm);
  font-size: .89rem; font-weight: 500; color: var(--text-dim);
  transition: all var(--t-fast);
}
.nav-links a:hover { background: var(--surface); color: var(--text); }
.nav-links a.is-active { background: var(--accent-soft); color: var(--accent-hi); }

.hero {
  padding: 66px 0 44px;
  background:
    radial-gradient(900px 380px at 15% -10%, rgba(99,102,241,.16), transparent 60%),
    radial-gradient(700px 340px at 88% 0%, rgba(168,85,247,.12), transparent 60%);
  border-bottom: 1px solid var(--border);
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: .76rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  color: var(--accent-hi); background: var(--accent-soft);
  padding: 5px 13px; border-radius: 99px; margin-bottom: 18px;
}
.hero__title { font-size: clamp(2rem, 5vw, 3.15rem); font-weight: 800; letter-spacing: -.035em; margin-bottom: 14px; }
.hero__title .grad {
  background: linear-gradient(120deg, var(--accent-hi), #d8b4fe 60%, #f0abfc);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero__sub { font-size: 1.05rem; color: var(--text-dim); max-width: 620px; }
.hero__stats { display: flex; flex-wrap: wrap; gap: 32px; margin-top: 34px; }
.hero__stat-num { font-size: 1.7rem; font-weight: 800; letter-spacing: -.03em; }
.hero__stat-label { font-size: .78rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: .07em; }

.toolbar {
  position: sticky; top: var(--topbar-h); z-index: 40;
  padding: 14px 0;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 3px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px; border-radius: 99px;
  border: 1px solid var(--border); background: var(--bg-elev);
  font-size: .84rem; font-weight: 500; color: var(--text-dim);
  white-space: nowrap; transition: all var(--t-fast);
}
.chip:hover { border-color: var(--border-strong); color: var(--text); }
.chip.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }
.chip__count {
  font-size: .72rem; padding: 1px 7px; border-radius: 99px;
  background: var(--surface); color: inherit;
}
.chip.is-active .chip__count { background: rgba(255,255,255,.22); }

.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; padding: 30px 0 60px; }
.file-card {
  position: relative;
  display: flex; flex-direction: column; gap: 12px;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}
.file-card:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: var(--shadow); }
.file-card__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.file-card__icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent-hi);
}
.file-card__title { font-size: 1.02rem; font-weight: 700; line-height: 1.35; }
.file-card__title a:hover { color: var(--accent-hi); }
.file-card__desc {
  font-size: .87rem; color: var(--text-dim); line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 2.7em;
}
.file-card__meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: .78rem; color: var(--text-mute); }
.file-card__meta span { display: inline-flex; align-items: center; gap: 5px; }
.file-card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.file-card__tag {
  font-size: .72rem; padding: 2px 8px; border-radius: 5px;
  background: var(--surface); color: var(--text-mute); border: 1px solid var(--border);
}
.file-card__foot { display: flex; gap: 8px; margin-top: auto; padding-top: 4px; }
.file-card__foot .btn { flex: 1; }
.file-card--featured { border-color: rgba(245,158,11,.4); }
.file-card--featured::before {
  content: ''; position: absolute; inset: 0;
  border-radius: inherit; pointer-events: none;
  background: linear-gradient(160deg, rgba(245,158,11,.07), transparent 45%);
}

.fav-btn {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  color: var(--text-mute); background: var(--surface); border: 1px solid var(--border);
  transition: all var(--t-fast);
}
.fav-btn:hover { color: var(--danger); border-color: var(--danger); }
.fav-btn.is-active { color: var(--danger); background: var(--danger-soft); border-color: transparent; }

/* file detail */
.detail-hero { padding: 34px 0 26px; border-bottom: 1px solid var(--border); }
.detail-grid { display: grid; grid-template-columns: 1fr 320px; gap: 26px; padding: 30px 0 60px; align-items: start; }
.shots { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.shots img { border-radius: var(--radius-sm); border: 1px solid var(--border); cursor: zoom-in; width: 100%; height: 110px; object-fit: cover; }
.prose { line-height: 1.75; color: var(--text-dim); white-space: pre-wrap; word-wrap: break-word; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; font-size: .87rem; }
.kv dt { color: var(--text-mute); }
.kv dd { text-align: right; font-weight: 500; word-break: break-all; }

/* --------------------------------------------------------------------------
   8. Admin shell
   -------------------------------------------------------------------------- */
.admin { display: flex; min-height: 100vh; }

.sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 60;
  width: var(--sidebar-w);
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  transition: transform var(--t);
}
.sidebar__head { padding: 18px 20px; border-bottom: 1px solid var(--border); }
.sidebar__nav { flex: 1; overflow-y: auto; padding: 14px 12px; }
.sidebar__group { margin-bottom: 20px; }
.sidebar__label {
  font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-mute); padding: 0 10px; margin-bottom: 7px;
}
.sidebar__link {
  display: flex; align-items: center; gap: 11px;
  padding: 9px 11px; border-radius: var(--radius-sm);
  font-size: .89rem; font-weight: 500; color: var(--text-dim);
  transition: all var(--t-fast); margin-bottom: 2px;
}
.sidebar__link:hover { background: var(--surface); color: var(--text); }
.sidebar__link.is-active { background: var(--accent-soft); color: var(--accent-hi); font-weight: 600; }
.sidebar__link .badge { margin-left: auto; }
.sidebar__foot { padding: 14px; border-top: 1px solid var(--border); }

.admin-main { flex: 1; margin-left: var(--sidebar-w); min-width: 0; display: flex; flex-direction: column; }
.admin-top {
  position: sticky; top: 0; z-index: 45;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 14px;
  padding: 0 24px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.admin-body { flex: 1; padding: 26px 24px 60px; }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 24px; }
.page-head__sub { color: var(--text-mute); font-size: .9rem; margin-top: 4px; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.grid-side { display: grid; grid-template-columns: 1fr 340px; gap: 18px; align-items: start; }

.avatar { border-radius: 50%; object-fit: cover; background: var(--bg-hover); flex: none; }
.avatar--sm { width: 30px; height: 30px; }
.avatar--md { width: 40px; height: 40px; }
.avatar--lg { width: 84px; height: 84px; }

.dropdown { position: relative; }
.dropdown__menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 70;
  min-width: 210px; padding: 6px;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: all var(--t-fast);
}
.dropdown.is-open .dropdown__menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown__item {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 11px; border-radius: 7px;
  font-size: .87rem; color: var(--text-dim); text-align: left;
  transition: all var(--t-fast);
}
.dropdown__item:hover { background: var(--surface); color: var(--text); }
.dropdown__item--danger { color: var(--danger); }
.dropdown__divider { height: 1px; background: var(--border); margin: 5px 2px; }

/* notifications panel */
.notif-list { max-height: 400px; overflow-y: auto; }
.notif {
  display: flex; gap: 11px; padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  transition: background var(--t-fast);
}
.notif:hover { background: var(--surface); }
.notif.is-unread { background: var(--accent-soft); }
.notif__icon { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; background: var(--surface); flex: none; }
.notif__title { font-size: .87rem; font-weight: 600; }
.notif__msg { font-size: .81rem; color: var(--text-dim); }
.notif__time { font-size: .74rem; color: var(--text-mute); margin-top: 3px; }
.notif-dot {
  position: absolute; top: 4px; right: 4px;
  min-width: 17px; height: 17px; padding: 0 4px;
  border-radius: 99px; background: var(--danger); color: #fff;
  font-size: .66rem; font-weight: 700;
  display: grid; place-items: center;
}

/* --------------------------------------------------------------------------
   9. Charts (pure CSS/SVG)
   -------------------------------------------------------------------------- */
.chart { width: 100%; height: 200px; }
.chart-bars { display: flex; align-items: flex-end; gap: 3px; height: 170px; padding-top: 10px; }
.chart-bar { flex: 1; min-width: 3px; background: var(--accent); border-radius: 3px 3px 0 0; opacity: .82; transition: opacity var(--t-fast), transform var(--t-fast); position: relative; }
.chart-bar:hover { opacity: 1; transform: scaleY(1.03); }
.chart-bar__tip {
  position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  margin-bottom: 6px; padding: 4px 8px; white-space: nowrap;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: 6px; font-size: .72rem; box-shadow: var(--shadow);
  opacity: 0; pointer-events: none; transition: opacity var(--t-fast);
}
.chart-bar:hover .chart-bar__tip { opacity: 1; }
.chart-axis { display: flex; justify-content: space-between; font-size: .7rem; color: var(--text-mute); margin-top: 7px; }

.meter { height: 8px; border-radius: 99px; background: var(--bg-hover); overflow: hidden; }
.meter__fill { height: 100%; border-radius: 99px; background: var(--accent); transition: width var(--t); }
.meter__fill--warning { background: var(--warning); }
.meter__fill--danger  { background: var(--danger); }

/* --------------------------------------------------------------------------
   10. Toasts, modals, pagination
   -------------------------------------------------------------------------- */
#toasts {
  position: fixed; right: 20px; bottom: 20px; z-index: 200;
  display: flex; flex-direction: column; gap: 10px;
  max-width: min(380px, calc(100vw - 40px));
}
.toast {
  display: flex; align-items: flex-start; gap: 11px;
  padding: 13px 15px;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  font-size: .88rem;
  animation: toast-in .28s cubic-bezier(.2,.9,.3,1.2);
}
.toast.is-out { animation: toast-out .22s ease forwards; }
.toast--success { border-left-color: var(--success); }
.toast--error   { border-left-color: var(--danger); }
.toast--warning { border-left-color: var(--warning); }
.toast__icon { flex: none; margin-top: 1px; }
.toast--success .toast__icon { color: var(--success); }
.toast--error   .toast__icon { color: var(--danger); }
.toast--warning .toast__icon { color: var(--warning); }
.toast__close { margin-left: auto; color: var(--text-mute); flex: none; }

@keyframes toast-in  { from { opacity: 0; transform: translateX(30px) scale(.96); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateX(30px); } }

.modal-backdrop {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(0,0,0,.62); backdrop-filter: blur(3px);
  display: grid; place-items: center; padding: 20px;
  opacity: 0; visibility: hidden; transition: all var(--t);
}
.modal-backdrop.is-open { opacity: 1; visibility: visible; }
.modal {
  width: 100%; max-width: 520px; max-height: 88vh; overflow-y: auto;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  transform: scale(.96); transition: transform var(--t);
}
.modal-backdrop.is-open .modal { transform: scale(1); }
.modal__head { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.modal__body { padding: 22px; }
.modal__foot { display: flex; justify-content: flex-end; gap: 9px; padding: 16px 22px; border-top: 1px solid var(--border); }

.pagination { display: flex; align-items: center; justify-content: center; gap: 5px; flex-wrap: wrap; padding: 26px 0; }
.pagination a, .pagination span {
  min-width: 37px; height: 37px; padding: 0 11px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: .86rem; font-weight: 500; color: var(--text-dim);
  transition: all var(--t-fast);
}
.pagination a:hover { background: var(--surface); border-color: var(--border-strong); color: var(--text); }
.pagination .is-current { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }
.pagination .is-disabled { opacity: .35; pointer-events: none; }

.alert {
  display: flex; gap: 11px; align-items: flex-start;
  padding: 13px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--surface);
  font-size: .88rem; margin-bottom: 18px;
}
.alert--success { background: var(--success-soft); border-color: transparent; color: var(--success); }
.alert--error   { background: var(--danger-soft);  border-color: transparent; color: var(--danger); }
.alert--warning { background: var(--warning-soft); border-color: transparent; color: var(--warning); }
.alert--info    { background: var(--info-soft);    border-color: transparent; color: var(--info); }
.alert svg { flex: none; margin-top: 1px; }

.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--bg-hover) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { to { background-position: -200% 0; } }

.spinner {
  width: 17px; height: 17px; flex: none;
  border: 2px solid var(--border-strong); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .65s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: 100%; max-width: 420px; }
.auth-card .panel__body { padding: 30px; }

.site-footer { border-top: 1px solid var(--border); padding: 30px 0; color: var(--text-mute); font-size: .86rem; margin-top: auto; }

/* --------------------------------------------------------------------------
   11. Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
  .grid-side { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); box-shadow: var(--shadow-lg); }
  .sidebar.is-open { transform: none; }
  .admin-main { margin-left: 0; }
  .sidebar-backdrop {
    position: fixed; inset: 0; z-index: 55; background: rgba(0,0,0,.55);
    opacity: 0; visibility: hidden; transition: all var(--t);
  }
  .sidebar-backdrop.is-open { opacity: 1; visibility: visible; }
}
@media (max-width: 720px) {
  .container { padding-inline: 16px; }
  .admin-body, .admin-top { padding-inline: 16px; }
  .hero { padding: 44px 0 32px; }
  .hero__stats { gap: 22px; }
  .file-grid { grid-template-columns: 1fr; gap: 14px; }
  .nav-links { display: none; }
  .searchbox { max-width: none; }
  .page-head { flex-direction: column; }
  .stats-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .stat-card__value { font-size: 1.5rem; }
  #toasts { left: 16px; right: 16px; bottom: 16px; max-width: none; }
}

@media print {
  .sidebar, .admin-top, .site-header, .toolbar, .btn, #toasts { display: none !important; }
  .admin-main { margin: 0; }
  body { background: #fff; color: #000; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------------------------------------------------------------
   Member-area tab strip
   --------------------------------------------------------------- */

.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tabs__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: 9px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-dim);
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--fast), color var(--fast);
}
.tabs__link:hover {
  background: var(--bg-hover);
  color: var(--text);
  text-decoration: none;
}
.tabs__link.is-active {
  background: var(--accent);
  color: #fff;
}
.tabs__link.is-active svg { opacity: .95; }

@media (max-width: 640px) {
  .tabs__link span { display: none; }
  .tabs__link { padding: 10px 13px; }
}