/* ═══════════════════════════════════════
   FILE VAULT — FileBrowser-style light UI
   ═══════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #f9fafb;
  --bg-2: #ffffff;
  --bg-3: #f3f4f6;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --text: #1f2937;
  --text-muted: #6b7280;
  --text-dim: #4b5563;
  --primary: #22c55e;
  --primary-hover: #16a34a;
  --primary-glow: rgba(34, 197, 94, 0.15);
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #10b981;
  --warning: #f59e0b;
  --folder: #f59e0b;
  --radius: 8px;
  --radius-lg: 12px;
  --sidebar-w: 240px;
  --topbar-h: 56px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── LAYOUT ── */
.wrap { min-height: 100vh; display: flex; flex-direction: column; }

.fb-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── SIDEBAR ── */
.fb-sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 0;
}

.fb-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.3px;
}

.fb-sidebar-logo svg { color: var(--primary); flex-shrink: 0; }

.fb-sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fb-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--radius);
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-align: left;
}
.fb-nav-item:hover { background: var(--bg-3); color: var(--text); }
.fb-nav-item.fb-nav-active { background: var(--primary-glow); color: var(--primary); }

.fb-sidebar-footer {
  border-top: 1px solid var(--border);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.fb-user-badge { display: flex; align-items: center; gap: 9px; flex: 1; min-width: 0; }
.fb-user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #8b5cf6);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.fb-user-info { display: flex; flex-direction: column; min-width: 0; }
.fb-user-name { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fb-user-role { font-size: 11px; color: var(--text-muted); }

.fb-logout-btn {
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-3);
  color: var(--text-dim); cursor: pointer; transition: all 0.15s;
}
.fb-logout-btn:hover { background: var(--danger); border-color: var(--danger); color: #fff; }

/* ── MAIN ── */
.fb-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

/* ── TOPBAR ── */
.fb-topbar {
  height: var(--topbar-h);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  flex-shrink: 0;
}

.fb-breadcrumb { display: flex; align-items: center; gap: 4px; flex: 1; min-width: 0; overflow: hidden; }
.fb-crumb {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 8px; border-radius: 6px; border: none;
  background: transparent; color: var(--text-dim);
  font-size: 13px; font-weight: 500; cursor: pointer;
  transition: background 0.15s, color 0.15s; white-space: nowrap;
}
.fb-crumb:hover { background: var(--bg-3); color: var(--text); }
.fb-crumb:last-child { color: var(--text); }
.fb-crumb-sep { color: var(--border-light); display: flex; align-items: center; flex-shrink: 0; }

.fb-topbar-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

.fb-action-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-3);
  color: var(--text-dim); font-size: 13px; font-weight: 500;
  cursor: pointer; transition: all 0.15s; white-space: nowrap;
  text-decoration: none;
}
.fb-action-btn:hover { background: var(--border); color: var(--text); }
.fb-action-btn--primary {
  background: var(--primary); border-color: var(--primary);
  color: #fff;
}
.fb-action-btn--primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.fb-view-toggle { display: flex; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.fb-view-btn {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border: none;
  background: transparent; color: var(--text-muted); cursor: pointer; transition: all 0.15s;
}
.fb-view-btn:hover { background: var(--bg-3); color: var(--text); }
.fb-view-btn--active { background: var(--bg-3); color: var(--primary); }

/* ── CONTENT AREA ── */
.fb-content {
  flex: 1; overflow-y: auto; position: relative;
  padding: 20px;
  background: var(--bg);
}

/* ── DROP OVERLAY ── */
.fb-drop-overlay {
  position: absolute; inset: 0; z-index: 100;
  background: rgba(59,130,246,0.08);
  border: 2px dashed var(--primary);
  border-radius: var(--radius-lg);
  display: none; align-items: center; justify-content: center;
  pointer-events: none;
}
.fb-drop-overlay--active { display: flex; }
.fb-drop-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; color: var(--primary); }
.fb-drop-inner p { font-size: 16px; font-weight: 600; }

/* ── TABLE (LIST VIEW) ── */
.fb-list-wrap { background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }

.fb-table { width: 100%; border-collapse: collapse; }
.fb-table thead tr { border-bottom: 1px solid var(--border); }
.fb-table th {
  padding: 10px 14px; text-align: left;
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted);
}
.fb-table td { padding: 10px 14px; vertical-align: middle; }
.fb-table tbody tr { border-bottom: 1px solid var(--border); transition: background 0.1s; }
.fb-table tbody tr:last-child { border-bottom: none; }
.fb-table tbody tr:hover { background: var(--bg-3); }

.col-icon { width: 36px; padding-right: 4px !important; }
.col-name { min-width: 180px; }
.col-size { width: 90px; }
.col-vis { width: 110px; }
.col-date { width: 110px; }
.col-act { width: 120px; }

.fb-ico { width: 20px; height: 20px; display: block; }
.fb-ico--folder { fill: var(--folder); }
.fb-ico--file { fill: none; }

.fb-name-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text); font-size: 13.5px; font-weight: 500;
  transition: color 0.15s; padding: 0; text-align: left;
}
.fb-name-btn:hover { color: var(--primary); }
.fb-name-text { font-size: 13.5px; font-weight: 500; }

.muted { color: var(--text-muted); font-size: 13px; }

/* ── BADGES ── */
.fb-badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 20px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.03em;
}
.fb-badge--pub { background: rgba(34,197,94,0.12); color: #22c55e; border: 1px solid rgba(34,197,94,0.25); }
.fb-badge--priv { background: rgba(100,116,139,0.12); color: var(--text-muted); border: 1px solid var(--border); }

/* ── FILE ACTION BUTTONS ── */
.fb-acts { display: flex; align-items: center; gap: 4px; }
.fb-act-btn {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 6px;
  border: 1px solid transparent; background: transparent;
  color: var(--text-dim); cursor: pointer; transition: all 0.15s;
}
.fb-act-btn:hover { background: var(--bg-3); color: var(--text); border-color: var(--border); }
.fb-act-btn--pub:hover { color: var(--success); border-color: var(--success); }
.fb-act-btn--del:hover { background: rgba(239,68,68,0.1); color: var(--danger); border-color: var(--danger); }

/* ── GRID VIEW ── */
.fb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}
.fb-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px 14px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  cursor: pointer; transition: all 0.18s; position: relative;
  text-align: center; box-shadow: var(--shadow);
}
.fb-card:hover { border-color: var(--primary); background: var(--bg-2); box-shadow: 0 10px 25px rgba(0,0,0,0.08); transform: translateY(-2px); }
.fb-card--folder:hover .fb-ico--folder { filter: brightness(1.2); }
.fb-card-ico { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; }
.fb-card-ico .fb-ico { width: 36px; height: 36px; }
.fb-card-name { font-size: 12.5px; font-weight: 500; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.fb-card-meta { font-size: 11px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; flex-wrap: wrap; justify-content: center; }
.fb-card-acts { display: flex; gap: 4px; margin-top: 4px; }

/* ── EMPTY STATE ── */
.fb-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; padding: 80px 20px; text-align: center;
}
.fb-empty-icon { color: var(--border-light); }
.fb-empty-title { font-size: 16px; font-weight: 600; color: var(--text-dim); }
.fb-empty-sub { font-size: 13px; color: var(--text-muted); }

/* ── LOADING ── */
.fb-loading {
  display: none; align-items: center; justify-content: center;
  position: absolute; inset: 0; background: rgba(15,17,23,0.6);
  backdrop-filter: blur(2px); z-index: 50;
}
.fb-spinner {
  width: 36px; height: 36px; border-radius: 50%;
  border: 3px solid var(--border); border-top-color: var(--primary);
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── TOAST ── */
.fb-toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 9999;
  padding: 11px 18px; border-radius: var(--radius);
  font-size: 13.5px; font-weight: 500;
  background: var(--bg-3); border: 1px solid var(--border);
  color: var(--text); box-shadow: var(--shadow);
  transform: translateY(12px); opacity: 0;
  transition: all 0.25s cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: none;
}
.fb-toast--show { transform: translateY(0); opacity: 1; }
.fb-toast--success { border-color: var(--success); color: var(--success); background: rgba(34,197,94,0.08); }
.fb-toast--error { border-color: var(--danger); color: var(--danger); background: rgba(239,68,68,0.08); }
.fb-toast--info { border-color: var(--primary); color: var(--primary); background: var(--primary-glow); }

/* ── MODAL ── */
.fb-modal-backdrop {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.fb-modal-backdrop[hidden] { display: none; }
.fb-modal {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: 100%; max-width: 400px;
  box-shadow: var(--shadow); animation: modalIn 0.2s ease;
}
@keyframes modalIn { from { opacity:0; transform:scale(0.95); } to { opacity:1; transform:scale(1); } }
.fb-modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--border); }
.fb-modal-title { font-size: 15px; font-weight: 600; }
.fb-modal-close { display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 6px; border: none; background: transparent; color: var(--text-muted); cursor: pointer; transition: all 0.15s; }
.fb-modal-close:hover { background: var(--bg-3); color: var(--text); }
.fb-modal-body { padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.fb-label { font-size: 12.5px; font-weight: 600; color: var(--text-dim); }
.fb-input {
  width: 100%; padding: 9px 12px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-3);
  color: var(--text); font-size: 14px; font-family: inherit;
  outline: none; transition: border-color 0.15s;
}
.fb-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
.fb-modal-footer { display: flex; gap: 8px; justify-content: flex-end; padding: 14px 20px; border-top: 1px solid var(--border); }
.fb-btn { display: inline-flex; align-items: center; justify-content: center; padding: 8px 18px; border-radius: var(--radius); border: 1px solid var(--border); font-size: 13.5px; font-weight: 500; cursor: pointer; font-family: inherit; transition: all 0.15s; }
.fb-btn--ghost { background: transparent; color: var(--text-dim); }
.fb-btn--ghost:hover { background: var(--bg-3); color: var(--text); }
.fb-btn--primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.fb-btn--primary:hover { background: var(--primary-hover); }

/* ════════════════════════
   ADMIN STYLES (unchanged layout, upgraded look)
   ════════════════════════ */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 28px; border-bottom: 1px solid var(--border);
  background: var(--bg-2); gap: 16px; flex-wrap: wrap;
}
.topbar-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.eyebrow { font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 4px; }
.title-lg { font-size: 22px; font-weight: 700; color: var(--text); }

.card {
  margin: 24px 28px; background: var(--bg-2);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px;
}
.card h1 { font-size: 18px; font-weight: 700; margin-bottom: 20px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-3);
  color: var(--text-dim); font-size: 13px; font-weight: 500;
  cursor: pointer; font-family: inherit; text-decoration: none;
  transition: all 0.15s;
}
.btn:hover { background: var(--border); color: var(--text); }
.btn.primary, .btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.danger { background: rgba(239,68,68,0.1); border-color: var(--danger); color: var(--danger); }
.btn.danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-icon { padding: 5px 8px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead tr { border-bottom: 1px solid var(--border); }
th { padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
td { padding: 12px 14px; vertical-align: middle; border-bottom: 1px solid var(--border); font-size: 13.5px; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-3); }
.cell-actions { text-align: right; }

/* API Key display */
.api-key-cell { display: flex; align-items: center; gap: 8px; }
.api-key-code {
  font-family: 'Courier New', Courier, monospace; font-size: 12px;
  background: var(--bg-3); border: 1px solid var(--border);
  padding: 3px 8px; border-radius: 5px; color: var(--text-dim);
  max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  display: inline-block; transition: opacity 0.3s;
}

/* Forms */
label { display: block; font-size: 12.5px; font-weight: 600; color: var(--text-dim); margin-bottom: 5px; }
input[type="text"], input[type="password"], input[type="number"], input[type="date"] {
  width: 100%; padding: 9px 12px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--bg-3);
  color: var(--text); font-size: 13.5px; font-family: inherit;
  outline: none; transition: border-color 0.15s, box-shadow 0.15s;
  margin-bottom: 14px;
}
input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-glow); }
input[readonly] { opacity: 0.7; cursor: default; }

button[type="submit"].primary, button.primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 9px 20px; border-radius: var(--radius);
  background: var(--primary); border: 1px solid var(--primary);
  color: #fff; font-size: 14px; font-weight: 600; font-family: inherit;
  cursor: pointer; transition: all 0.15s;
}
button[type="submit"].primary:hover, button.primary:hover { background: var(--primary-hover); }

.form-actions { margin-top: 8px; display: flex; gap: 10px; }
.err { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13.5px; }
.muted { color: var(--text-muted); }
.empty-state { padding: 32px; text-align: center; }
.row { display: flex; align-items: center; }
.back-link { margin: 18px 28px 0; }
.back-link a { color: var(--primary); text-decoration: none; font-size: 13.5px; }
.back-link a:hover { text-decoration: underline; }
.subtitle { font-size: 13px; color: var(--text-muted); margin-bottom: 18px; }

/* Mime categories */
.mime-fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px; }
.mime-legend { font-size: 13px; font-weight: 600; color: var(--text-dim); padding: 0 6px; }
.mime-intro { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.mime-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 8px; margin-top: 10px; }
.mime-option { display: flex; align-items: flex-start; gap: 8px; padding: 8px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg-3); cursor: pointer; transition: border-color 0.15s; }
.mime-option:hover { border-color: var(--border-light); }
.mime-option input[type="checkbox"] { margin-top: 2px; accent-color: var(--primary); flex-shrink: 0; }
.mime-option-body { display: flex; flex-direction: column; gap: 1px; }
.mime-option-title { font-size: 13px; font-weight: 500; color: var(--text); }
.mime-option-hint { font-size: 11px; color: var(--text-muted); }
.mime-legacy-note { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.3); color: #fbbf24; padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; font-size: 13px; }
.allow-all-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: 13.5px; font-weight: 500; color: var(--text); cursor: pointer; }
.allow-all-row input { accent-color: var(--primary); }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; font-size: 13.5px; color: var(--text-dim); cursor: pointer; }
.checkbox-row input { accent-color: var(--primary); }

/* Admin login */
.card-narrow { width: 100%; max-width: 420px; margin: auto; }
.card-narrow .form-actions { justify-content: center; margin-top: 20px; }
.card-narrow--wide { max-width: 480px; }

/* Scrollbars */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* User login page */
.fb-shell ~ .card { display: none; }

/* ── MOBILE RESPONSIVE ── */
.fb-menu-btn {
  display: none; background: transparent; border: none; color: var(--text);
  cursor: pointer; padding: 6px; border-radius: 6px; margin-right: 8px;
}
.fb-menu-btn:hover { background: var(--bg-3); }

.fb-sidebar-overlay {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(3px);
}

@media (max-width: 768px) {
  .fb-menu-btn { display: flex; align-items: center; justify-content: center; }
  
  .fb-sidebar {
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 1000;
    transform: translateX(-100%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 4px 0 24px rgba(0,0,0,0.5); width: 260px;
  }
  .fb-sidebar.is-open { transform: translateX(0); }
  .fb-sidebar-overlay.is-active { display: block; }
  
  .fb-topbar { padding: 0 12px; }
  .fb-content { padding: 16px 12px; }
  
  .fb-topbar-actions .fb-action-btn span { display: none; }
  .fb-action-btn { padding: 8px; }
  
  .fb-table th.col-date, .fb-table td.col-date,
  .fb-table th.col-size, .fb-table td.col-size,
  .fb-table th.col-vis, .fb-table td.col-vis { display: none; }
  
  .fb-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
  .fb-card { padding: 12px 10px; }
}