/* ============================================================
   TelDrive -- Professional Dark UI (Bootstrap compatible)
   ============================================================ */

/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --td-bg:       #0f1117;
  --td-surface:  #1a1d27;
  --td-surface2: #22263a;
  --td-border:   #2e3250;
  --td-accent:   #4f6ef7;
  --td-success:  #22c55e;
  --td-warning:  #f59e0b;
  --td-danger:   #ef4444;
  --td-text:     #e2e8f0;
  --td-muted:    #64748b;
  --td-radius:   12px;
}

/* Base */
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--td-bg);
  color: var(--td-text);
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--td-bg); }
::-webkit-scrollbar-thumb { background: var(--td-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--td-muted); }

/* ---- Navbar ---- */
.navbar {
  background: var(--td-surface) !important;
  border-bottom: 1px solid var(--td-border);
  backdrop-filter: blur(12px);
  padding: 0 24px;
  height: 56px;
}
.navbar-brand {
  font-weight: 700;
  color: var(--td-text) !important;
  display: flex; align-items: center; gap: 8px;
}
.navbar-brand i { color: var(--td-accent); }
.nav-link {
  color: var(--td-muted) !important;
  border-radius: 8px;
  padding: 6px 12px !important;
  font-size: .875rem;
  display: flex; align-items: center; gap: 6px;
  transition: .15s;
}
.nav-link:hover, .nav-link.active {
  background: var(--td-surface2);
  color: var(--td-text) !important;
}
.navbar-toggler { border-color: var(--td-border); }
.navbar-toggler-icon { filter: invert(1); }

/* User chip */
.user-chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--td-surface2);
  border: 1px solid var(--td-border);
  border-radius: 999px;
  padding: 4px 14px 4px 6px;
  font-size: .8rem; color: var(--td-muted);
  cursor: pointer; transition: .15s;
  text-decoration: none;
}
.user-chip:hover { border-color: var(--td-accent); color: var(--td-text); }
.user-avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--td-accent), #8b5cf6);
  display: flex; align-items: center; justify-content: center;
  font-size: .7rem; font-weight: 700; color: #fff;
}

/* ---- Breadcrumb ---- */
.breadcrumb { background: transparent; padding: 0; margin: 0; }
.breadcrumb-item a { color: var(--td-muted); text-decoration: none; font-size: .875rem; }
.breadcrumb-item a:hover { color: var(--td-text); }
.breadcrumb-item.active { color: var(--td-text); font-size: .875rem; font-weight: 500; }
.breadcrumb-item + .breadcrumb-item::before { color: var(--td-border); }

/* ---- Search ---- */
.td-search { position: relative; }
.td-search input {
  background: var(--td-surface2) !important;
  border: 1px solid var(--td-border) !important;
  color: var(--td-text) !important;
  border-radius: 8px !important;
  padding-left: 34px !important;
  font-size: .875rem;
}
.td-search input:focus { border-color: var(--td-accent) !important; box-shadow: none !important; }
.td-search input::placeholder { color: var(--td-muted); }
.td-search .search-icon {
  position: absolute; left: 10px; top: 50%; transform: translateY(-50%);
  color: var(--td-muted); pointer-events: none; font-size: .85rem;
}

/* ---- Buttons ---- */
.btn-primary {
  background: var(--td-accent) !important;
  border-color: var(--td-accent) !important;
  font-weight: 500;
}
.btn-primary:hover { background: #3d5ce0 !important; border-color: #3d5ce0 !important; }
.btn-outline-secondary {
  color: var(--td-muted) !important;
  border-color: var(--td-border) !important;
  background: var(--td-surface2) !important;
}
.btn-outline-secondary:hover { color: var(--td-text) !important; border-color: var(--td-accent) !important; }
.btn-outline-primary {
  color: var(--td-accent) !important;
  border-color: var(--td-accent) !important;
  background: transparent !important;
}
.btn-outline-primary:hover { background: rgba(79,110,247,.15) !important; }
.btn-outline-danger {
  color: var(--td-danger) !important;
  border-color: rgba(239,68,68,.4) !important;
  background: rgba(239,68,68,.08) !important;
}
.btn-outline-danger:hover { background: rgba(239,68,68,.2) !important; }
.btn-outline-success {
  color: var(--td-success) !important;
  border-color: rgba(34,197,94,.4) !important;
  background: rgba(34,197,94,.08) !important;
}

/* ---- Upload progress ---- */
#uploadArea, #uploadCard {
  background: var(--td-surface);
  border: 1px solid var(--td-border) !important;
  border-radius: var(--td-radius) !important;
}
.upload-bar-bg {
  background: var(--td-surface2);
  border-radius: 999px; height: 6px; overflow: hidden;
}
.upload-bar-fill {
  height: 100%; border-radius: 999px;
  background: linear-gradient(90deg, var(--td-accent), #8b5cf6);
  transition: width .3s ease;
}
/* Bootstrap progress override */
.progress { background: var(--td-surface2) !important; height: 6px !important; border-radius: 999px !important; }
.progress-bar {
  background: linear-gradient(90deg, var(--td-accent), #8b5cf6) !important;
  border-radius: 999px !important;
}

/* ---- Storage bar ---- */
.storage-wrap {
  background: var(--td-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius);
  padding: 12px 16px;
  margin-bottom: 20px;
}

/* ---- File/Folder Cards ---- */
.item-card {
  background: var(--td-surface) !important;
  border: 1px solid var(--td-border) !important;
  border-radius: var(--td-radius) !important;
  transition: border-color .15s, transform .15s, box-shadow .15s;
  overflow: hidden;
  position: relative;
  display: flex !important;
  flex-direction: column !important;
}
.item-card:hover {
  border-color: var(--td-accent) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79,110,247,.15) !important;
}
.item-card .card-body { padding: 10px 12px 8px !important; flex: 1; }
.item-card .card-footer {
  background: var(--td-surface) !important;
  border-top: 1px solid var(--td-border) !important;
  padding: 6px 8px !important;
  margin-top: auto;
}
.item-card .card-name {
  font-size: .8rem; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  color: var(--td-text);
}
.item-card .card-meta { font-size: .72rem; color: var(--td-muted); margin-top: 2px; }

/* Thumbnail */
.card-thumb {
  height: 90px; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  background: var(--td-surface2);
  flex-shrink: 0;
}
.card-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  display: block; max-height: 90px;
}
.card-thumb .thumb-icon { font-size: 2.2rem; }
.folder-card .card-thumb { background: rgba(79,110,247,.08); }

/* Sync badge */
.sync-badge {
  position: absolute; top: 6px; right: 6px;
  padding: 2px 7px; border-radius: 999px;
  font-size: .65rem; font-weight: 600; z-index: 1;
}
.sync-badge.syncing {
  background: rgba(245,158,11,.15); color: var(--td-warning);
  border: 1px solid rgba(245,158,11,.35);
}
.sync-badge.failed {
  background: rgba(239,68,68,.15); color: var(--td-danger);
  border: 1px solid rgba(239,68,68,.35);
}

/* Action buttons in card */
.item-card .btn-icon {
  width: 30px; height: 30px; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 7px; cursor: pointer; border: none;
  background: transparent; color: var(--td-muted);
  font-size: .85rem; transition: .15s;
}
.item-card .btn-icon:hover { background: var(--td-surface2); color: var(--td-text); }
.item-card .btn-icon.danger:hover { background: rgba(239,68,68,.15); color: var(--td-danger); }

/* ---- Grid ---- */
.td-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr)) !important;
  gap: 12px !important;
}

/* ---- Empty / dropzone ---- */
.td-empty {
  grid-column: 1 / -1;
  border: 2px dashed var(--td-border);
  border-radius: var(--td-radius);
  padding: 70px 20px;
  text-align: center;
  color: var(--td-muted);
  transition: .2s;
}
.td-empty.drag-over { border-color: var(--td-accent); background: rgba(79,110,247,.06); }
.td-empty i { font-size: 2.5rem; margin-bottom: 16px; display: block; opacity: .4; }
.td-empty p { margin: 0; font-size: .95rem; }

/* ---- Modals ---- */
.modal-content {
  background: var(--td-surface) !important;
  border: 1px solid var(--td-border) !important;
  border-radius: var(--td-radius) !important;
  color: var(--td-text) !important;
}
.modal-header {
  border-bottom: 1px solid var(--td-border) !important;
  padding: 16px 20px !important;
}
.modal-header .modal-title { font-size: 1rem; font-weight: 600; }
.modal-footer { border-top: 1px solid var(--td-border) !important; }
.btn-close { filter: invert(1); }
.modal-backdrop { background: rgba(0,0,0,.6); backdrop-filter: blur(4px); }

/* ---- Form controls ---- */
.form-control, .form-select {
  background: var(--td-surface2) !important;
  border: 1px solid var(--td-border) !important;
  color: var(--td-text) !important;
  border-radius: 8px !important;
}
.form-control:focus, .form-select:focus {
  border-color: var(--td-accent) !important;
  box-shadow: 0 0 0 3px rgba(79,110,247,.15) !important;
}
.form-control::placeholder { color: var(--td-muted) !important; }
.form-label { font-size: .8rem; color: var(--td-muted); margin-bottom: 4px; }

/* ---- Tables ---- */
.table { color: var(--td-text) !important; }
.table thead th {
  background: var(--td-surface) !important;
  color: var(--td-muted) !important;
  border-bottom: 1px solid var(--td-border) !important;
  font-size: .75rem; text-transform: uppercase; letter-spacing: .04em;
}
.table tbody tr { border-color: rgba(46,50,80,.5) !important; }
.table tbody tr:hover td { background: var(--td-surface2) !important; }
.table td, .table th { border-color: rgba(46,50,80,.5) !important; }

/* ---- Alerts ---- */
.alert-success { background: rgba(34,197,94,.1) !important; border-color: rgba(34,197,94,.3) !important; color: #86efac !important; }
.alert-danger  { background: rgba(239,68,68,.1)  !important; border-color: rgba(239,68,68,.3)  !important; color: #fca5a5 !important; }
.alert-warning { background: rgba(245,158,11,.1) !important; border-color: rgba(245,158,11,.3) !important; color: #fde68a !important; }
.alert-info    { background: rgba(79,110,247,.1)  !important; border-color: rgba(79,110,247,.3)  !important; color: #a5b4fc !important; }

/* ---- Auth pages ---- */
.auth-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.auth-card {
  background: var(--td-surface) !important;
  border: 1px solid var(--td-border) !important;
  border-radius: var(--td-radius) !important;
  width: 420px; max-width: 100%;
}
.auth-card .card-body { padding: 36px !important; }
.auth-logo i { font-size: 2.5rem; color: var(--td-accent); }
.auth-logo h2 { font-size: 1.3rem; font-weight: 700; margin: 8px 0 4px; color: var(--td-text); }
.auth-logo p { color: var(--td-muted); font-size: .85rem; margin: 0; }

/* ---- Badges ---- */
.badge.bg-secondary { background: var(--td-surface2) !important; color: var(--td-muted) !important; }
.badge.bg-success   { background: rgba(34,197,94,.2)  !important; color: var(--td-success) !important; }
.badge.bg-danger    { background: rgba(239,68,68,.2)   !important; color: var(--td-danger)  !important; }
.badge.bg-info      { background: rgba(79,110,247,.2)  !important; color: #a5b4fc !important; }
.badge.bg-warning   { background: rgba(245,158,11,.2)  !important; color: var(--td-warning) !important; }

/* ---- Dropdown ---- */
.dropdown-menu {
  background: var(--td-surface2) !important;
  border: 1px solid var(--td-border) !important;
  border-radius: 10px !important;
  box-shadow: 0 8px 24px rgba(0,0,0,.4) !important;
}
.dropdown-item { color: var(--td-text) !important; font-size: .875rem; }
.dropdown-item:hover { background: var(--td-surface) !important; }

/* ---- Admin stat cards ---- */
.stat-card {
  background: var(--td-surface) !important;
  border: 1px solid var(--td-border) !important;
  border-radius: var(--td-radius) !important;
}
.stat-num { font-size: 1.8rem; font-weight: 700; color: var(--td-text); }
.stat-label { font-size: .8rem; color: var(--td-muted); margin-top: 2px; }

/* ---- Drag over grid ---- */
#fileGrid.drag-over { outline: 2px dashed var(--td-accent); outline-offset: 6px; border-radius: 10px; }

/* ---- Footer ---- */
footer { color: var(--td-muted) !important; border-top: 1px solid var(--td-border) !important; }

/* ---- Trash page ---- */
.trash-card {
  background: var(--td-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius);
  overflow: hidden;
}

/* ---- Share page ---- */
.share-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.share-card {
  background: var(--td-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius);
  padding: 40px; max-width: 480px; width: 100%; text-align: center;
}

/* ---- Admin settings ---- */
.settings-card {
  background: var(--td-surface);
  border: 1px solid var(--td-border);
  border-radius: var(--td-radius);
}

/* ---- Admin nav tabs ---- */
.admin-nav a {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 8px;
  color: var(--td-muted); text-decoration: none;
  font-size: .875rem; transition: .15s; margin-bottom: 2px;
}
.admin-nav a:hover, .admin-nav a.active {
  background: var(--td-surface2); color: var(--td-text);
}

/* ---- Responsive ---- */
@media (max-width: 576px) {
  .td-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .card-thumb { height: 75px; }
}

@keyframes spin { from{transform:rotate(0deg)} to{transform:rotate(360deg)} }