:root, :root[data-theme="dark"] {
  --bg: #0a0b0d;
  --bg-soft: #101216;
  --card: #14171c;
  --card-hover: #191d24;
  --line: #23272f;
  --line-soft: #1c2027;
  --line-strong: var(--line-strong);
  --text: #e7e9ee;
  --text-dim: #9aa1ae;
  --text-faint: #6b7280;
  --accent: #5b8cff;
  --accent-2: #8b5cf6;
  --accent-soft: rgba(91, 140, 255, .12);
  --danger: #ff5d6c;
  --ok: #34d399;
  --warn: #fbbf24;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, .45);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .28);
  --glow: #121a2b;
  --sidebar-bg1: #0e1014;
  --sidebar-bg2: #0b0c0f;
  --thumb-bg: #0e1013;
  --card-grad: var(--card-grad);
  --panel-grad: var(--panel-grad);
  --modal-grad: var(--modal-grad);
  --input-bg: #1d222b;
  --topbar-bg: rgba(10, 11, 13, .82);
  --hover-wash: rgba(255, 255, 255, .02);
}

:root[data-theme="light"] {
  --bg: #f6f7f9;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --card-hover: #f3f5f9;
  --line: #e3e7ee;
  --line-soft: #edf0f5;
  --line-strong: #d4dae4;
  --text: #1a1f29;
  --text-dim: #5c6675;
  --text-faint: #8a94a3;
  --accent: #3b6cf0;
  --accent-2: #7c4ddb;
  --accent-soft: rgba(59, 108, 240, .10);
  --danger: #d92d43;
  --ok: #0f9f6e;
  --warn: #b7791f;
  --shadow: 0 12px 40px rgba(15, 23, 42, .10);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --glow: #e8eeff;
  --sidebar-bg1: #ffffff;
  --sidebar-bg2: #fbfcfe;
  --thumb-bg: #eef1f6;
  --card-grad: linear-gradient(180deg, #ffffff, #fafbfd);
  --panel-grad: linear-gradient(180deg, #ffffff, #fbfcfe);
  --modal-grad: linear-gradient(180deg, #ffffff, #fafbfd);
  --input-bg: #ffffff;
  --topbar-bg: rgba(246, 247, 249, .86);
  --hover-wash: rgba(15, 23, 42, .025);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 700px at 18% -10%, var(--glow) 0%, transparent 60%), var(--bg);
  color: var(--text);
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body { min-height: 100vh; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--accent); }

/* ---------- app shell ---------- */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 236px;
  flex: none;
  background: linear-gradient(180deg, var(--sidebar-bg1) 0%, var(--sidebar-bg2) 100%);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 18px 12px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .3px;
  padding: 4px 8px 18px;
}
.brand-mark { color: var(--accent); font-size: 15px; }
.brand-sub { font-style: normal; font-weight: 500; font-size: 12px; color: var(--text-dim); margin-left: 2px; }

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-admin { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line-soft); }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 9px;
  border: 0;
  background: transparent;
  color: var(--text-dim);
  text-align: left;
  font-size: 13.5px;
  width: 100%;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: var(--card-hover); color: var(--text); }
.nav-item.active { background: linear-gradient(90deg, rgba(91,140,255,.18), rgba(139,92,246,.08)); color: #b9caff; font-weight: 600; }
.nav-item svg { width: 17px; height: 17px; flex: none; opacity: .9; }
.nav-count { margin-left: auto; font-size: 11.5px; color: var(--text-faint); font-variant-numeric: tabular-nums; }

.side-section { margin-top: 22px; }
.side-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px 7px;
  font-size: 11px;
  letter-spacing: .7px;
  text-transform: uppercase;
  color: var(--text-faint);
}
.side-title button {
  border: 0; background: transparent; color: var(--text-faint); font-size: 16px; line-height: 1; padding: 0 2px;
}
.side-title button:hover { color: var(--accent); }
.side-empty { color: var(--text-faint); font-size: 12px; padding: 2px 10px; }
.folder-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border-radius: 8px; border: 0; background: transparent;
  color: var(--text-dim); width: 100%; text-align: left; font-size: 13px;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.folder-item:hover { background: var(--card-hover); color: var(--text); }
.folder-item.active { background: var(--accent-soft); color: var(--accent); }
.folder-item .ficon { opacity: .7; flex: none; }

.side-foot { margin-top: auto; display: flex; flex-direction: column; gap: 2px; padding-top: 12px; border-top: 1px solid var(--line); }
.side-user { padding: 6px 10px 10px; font-size: 12px; color: var(--text-faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- main column ---------- */
.main-col { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 14px;
  padding: 13px 24px;
  background: var(--topbar-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.crumbs { font-weight: 600; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.crumbs .sub { color: var(--text-faint); font-weight: 400; font-size: 12px; margin-left: 8px; }
.toolbar { display: flex; align-items: center; gap: 9px; margin-left: auto; }

.search {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px;
  padding: 7px 11px; color: var(--text-faint); transition: border-color .15s, box-shadow .15s;
}
.search:focus-within { border-color: var(--accent); color: var(--text-dim); box-shadow: 0 0 0 3px rgba(91,140,255,.12); }
.search input { border: 0; outline: 0; background: transparent; width: 180px; color: var(--text); }
.search input::placeholder { color: var(--text-faint); }
.search.small { padding: 5px 9px; }
.search.small input { width: 150px; font-size: 12.5px; }

select {
  background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 10px; outline: 0; cursor: pointer;
}
.select-sm { padding: 5px 9px; font-size: 12.5px; border-radius: 8px; }
.btn {
  border: 1px solid var(--line); background: var(--bg-soft); border-radius: 10px;
  padding: 8px 15px; font-weight: 600; transition: background .15s, border-color .15s, transform .1s;
  white-space: nowrap;
}
.btn:hover { background: var(--card-hover); border-color: var(--line-strong); }
.btn:active { transform: scale(.98); }
.btn.primary { background: linear-gradient(180deg, #6496ff, var(--accent)); border-color: rgba(91,140,255,.75); color: #fff; box-shadow: 0 4px 14px rgba(91,140,255,.25); }
.btn.primary:hover { background: linear-gradient(180deg, #75a2ff, #6a97ff); }
.btn.ghost { color: var(--text-dim); }
.btn.danger { color: var(--danger); border-color: rgba(255, 93, 108, .35); }
.btn.small { padding: 5px 10px; font-size: 12px; border-radius: 8px; }
.btn.lg { padding: 11px 18px; border-radius: 11px; }
.btn:disabled { opacity: .45; cursor: default; }

main { width: 100%; max-width: 1500px; margin: 0 auto; padding: 22px 24px 48px; flex: 1; }
main.admin-main { max-width: 1380px; }
.meta { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.stats { color: var(--text-dim); font-size: 13px; font-variant-numeric: tabular-nums; }
.hint { color: var(--text-faint); font-size: 12px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }

.card {
  background: var(--card-grad); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: background .15s, border-color .15s, transform .15s, box-shadow .15s;
}
.card:hover { background: var(--card-hover); border-color: var(--line-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.thumb {
  position: relative; aspect-ratio: 16 / 10; background: var(--thumb-bg);
  display: flex; align-items: center; justify-content: center; overflow: hidden; cursor: zoom-in;
}
.thumb img, .thumb video { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb video { pointer-events: none; }
.thumb .icon { font-size: 34px; color: var(--text-faint); user-select: none; }
.badge {
  position: absolute; top: 9px; left: 9px;
  background: rgba(8, 9, 11, .72); backdrop-filter: blur(6px);
  color: var(--text-dim); font-size: 11px; padding: 3px 8px; border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .06); letter-spacing: .3px;
}
.info { padding: 11px 12px 3px; }
.name { font-weight: 600; font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sub { color: var(--text-faint); font-size: 12px; margin-top: 2px; font-variant-numeric: tabular-nums; }
.ops { display: flex; gap: 6px; padding: 9px 12px 12px; }
.iconbtn {
  flex: 1; border: 1px solid var(--line); background: transparent; color: var(--text-dim);
  border-radius: 8px; padding: 5px 0; font-size: 12px;
  transition: background .15s, color .15s, border-color .15s;
}
.iconbtn:hover { background: var(--accent-soft); color: var(--accent); border-color: rgba(91, 140, 255, .4); }
.iconbtn.danger:hover { background: rgba(255, 93, 108, .1); color: var(--danger); border-color: rgba(255, 93, 108, .35); }
.iconbtn.xs { flex: none; padding: 3px 8px; font-size: 11.5px; border-radius: 6px; }

.empty { text-align: center; padding: 80px 0; color: var(--text-faint); }
.empty.slim { padding: 30px 0; }
.empty-icon { font-size: 44px; opacity: .5; margin-bottom: 8px; }
.empty-title { font-size: 16px; color: var(--text-dim); margin: 0 0 4px; }
.empty-sub { font-size: 13px; margin: 0; }

.pager { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 18px; min-height: 30px; }
.pager-info { color: var(--text-faint); font-size: 12px; font-variant-numeric: tabular-nums; }
.pager-btns { display: flex; gap: 8px; }

/* ---------- admin ---------- */
.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 16px; }
.stat-card {
  display: flex; align-items: center; gap: 13px;
  background: linear-gradient(135deg, var(--card), var(--bg-soft));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 16px;
  transition: border-color .15s, transform .15s;
}
.stat-card:hover { border-color: var(--line-strong); transform: translateY(-1px); }
.stat-icon {
  width: 42px; height: 42px; flex: none; display: flex; align-items: center; justify-content: center;
  font-size: 20px; border-radius: 12px; background: var(--accent-soft); border: 1px solid rgba(91,140,255,.22);
}
.stat-label { color: var(--text-faint); font-size: 12px; }
.stat-value { font-size: 24px; font-weight: 700; letter-spacing: .2px; line-height: 1.25; font-variant-numeric: tabular-nums; }
.stat-sub { color: var(--text-faint); font-size: 11.5px; }

.admin-row { display: grid; gap: 14px; margin-bottom: 16px; }
.admin-row.two { grid-template-columns: 1fr 1fr; }

.panel {
  background: var(--panel-grad);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px;
  margin-bottom: 16px;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.panel-head.wrap { flex-wrap: wrap; }
.panel-head h2 { margin: 0; font-size: 14.5px; font-weight: 650; letter-spacing: .2px; }
.panel-hint { color: var(--text-faint); font-size: 11.5px; }
.panel-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.kind-bars { display: flex; flex-direction: column; gap: 12px; }
.kind-row { display: flex; flex-direction: column; gap: 5px; }
.kind-meta { display: flex; justify-content: space-between; font-size: 12.5px; }
.kind-name { color: var(--text-dim); }
.kind-num { color: var(--text-faint); font-variant-numeric: tabular-nums; }
.kind-bar { height: 7px; background: var(--line-soft); border-radius: 99px; overflow: hidden; }
.kind-fill { height: 100%; border-radius: 99px; background: linear-gradient(90deg, #6496ff, #8b5cf6); transition: width .35s; }
.kind-fill.kind-image { background: linear-gradient(90deg, #34d399, #10b981); }
.kind-fill.kind-video { background: linear-gradient(90deg, #f472b6, #ec4899); }
.kind-fill.kind-audio { background: linear-gradient(90deg, #fbbf24, #f59e0b); }
.kind-fill.kind-file { background: linear-gradient(90deg, #94a3b8, #64748b); }

.dist-list { display: flex; flex-direction: column; }
.dist-row { display: flex; justify-content: space-between; gap: 10px; padding: 7px 2px; border-bottom: 1px solid var(--line-soft); font-size: 12.5px; }
.dist-row:last-child { border-bottom: 0; }
.dist-name { color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dist-num { color: var(--text-faint); flex: none; font-variant-numeric: tabular-nums; }

.mini-list { display: flex; flex-direction: column; }
.mini-row { display: flex; align-items: center; gap: 9px; padding: 7px 2px; border-bottom: 1px solid var(--line-soft); font-size: 12.5px; }
.mini-row:last-child { border-bottom: 0; }
.mini-icon { flex: none; opacity: .8; }
.mini-name { flex: 1; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mini-size { color: var(--text-faint); flex: none; font-variant-numeric: tabular-nums; }

.table-wrap { overflow: auto; border-radius: 10px; border: 1px solid var(--line-soft); }
.data-table { width: 100%; border-collapse: collapse; font-size: 12.5px; min-width: 760px; }
.data-table thead th {
  position: sticky; top: 0; background: var(--bg-soft); text-align: left; font-weight: 600; color: var(--text-faint);
  padding: 9px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; font-size: 11.5px; letter-spacing: .3px;
}
.data-table tbody td { padding: 8px 10px; border-bottom: 1px solid var(--line-soft); vertical-align: middle; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: var(--hover-wash); }
.data-table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.data-table .dim { color: var(--text-faint); }
.data-table .chk { width: 34px; text-align: center; }
.data-table .ops-col { width: 160px; }
.ops-cell { display: flex; gap: 5px; }
.fname-cell { display: flex; align-items: center; gap: 8px; min-width: 0; }
.fkind { flex: none; opacity: .8; }
.fname-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 380px; display: inline-block; }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--line); color: var(--text-dim); white-space: nowrap; }
.pill-image { color: #6ee7b7; border-color: rgba(52,211,153,.3); background: rgba(52,211,153,.08); }
.pill-video { color: #f9a8d4; border-color: rgba(244,114,182,.3); background: rgba(244,114,182,.08); }
.pill-audio { color: #fcd34d; border-color: rgba(251,191,36,.3); background: rgba(251,191,36,.08); }
.pill-file { color: #cbd5e1; border-color: rgba(148,163,184,.3); background: rgba(148,163,184,.08); }
.muted { color: var(--text-faint); }
.skeleton { color: var(--text-faint); font-size: 12.5px; padding: 8px 0; }

.move-box { padding: 18px 8px 6px; min-width: 320px; }
.move-title { margin: 0 0 4px; font-size: 16px; }
.move-file { color: var(--text-faint); font-size: 12.5px; margin: 0 0 14px; word-break: break-all; }
.move-select { width: 100%; padding: 10px 12px; border-radius: 10px; }
.move-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 18px; }

/* ---------- auth ---------- */
.auth-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card {
  width: min(420px, 100%); background: var(--modal-grad); border: 1px solid var(--line);
  border-radius: 20px; padding: 34px 30px; box-shadow: var(--shadow);
}
.auth-logo { font-size: 34px; color: var(--accent); margin-bottom: 8px; }
.auth-title { margin: 0 0 4px; font-size: 22px; letter-spacing: .2px; }
.auth-sub { margin: 0 0 22px; color: var(--text-faint); font-size: 13px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }
.field input {
  width: 100%; background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 12px; outline: 0; transition: border-color .15s, box-shadow .15s;
}
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,140,255,.12); }
.auth-actions { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.auth-error { color: var(--danger); font-size: 12.5px; min-height: 18px; }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, .78); backdrop-filter: blur(6px); }
.modal-panel {
  position: relative; z-index: 1; background: var(--card); border: 1px solid var(--line);
  border-radius: 18px; max-width: min(1100px, 92vw); max-height: 90vh; padding: 18px;
  box-shadow: var(--shadow); display: flex; flex-direction: column; min-width: min(420px, 92vw);
}
.modal-close {
  position: absolute; top: 8px; right: 10px; z-index: 2; width: 32px; height: 32px;
  border: 0; border-radius: 50%; background: rgba(0, 0, 0, .5); color: #fff; font-size: 20px; line-height: 1;
}
.modal-close:hover { background: rgba(255, 255, 255, .15); }
.modal-content { overflow: auto; border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.modal-content img, .modal-content video { max-width: 100%; max-height: 74vh; border-radius: 10px; display: block; }
.modal-content audio { width: min(560px, 80vw); }
.modal-caption { color: var(--text-dim); font-size: 13px; padding: 12px 6px 2px; word-break: break-all; }

/* ---------- upload ---------- */
.upload-panel { width: min(560px, 92vw); }
.upload-title { margin: 4px 0 2px; font-size: 18px; }
.upload-sub { color: var(--text-faint); font-size: 12.5px; margin: 0 0 14px; }
.drop-zone {
  border: 1.5px dashed var(--line-strong); border-radius: 12px; padding: 28px 20px;
  text-align: center; color: var(--text-dim); transition: border-color .15s, background .15s;
}
.drop-zone.drag { border-color: var(--accent); background: var(--accent-soft); }
.drop-icon { font-size: 30px; color: var(--text-faint); margin-bottom: 6px; }
.drop-hint { color: var(--text-faint); font-size: 11.5px; margin: 6px 0 0; }
.linklike { border: 0; background: none; color: var(--accent); padding: 0; text-decoration: underline; }

.upload-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; max-height: 34vh; overflow: auto; }
.upl-item { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.upl-name { font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upl-bar { height: 4px; background: var(--line); border-radius: 99px; margin-top: 7px; overflow: hidden; }
.upl-fill { height: 100%; width: 0; background: linear-gradient(90deg, #6496ff, #8b5cf6); border-radius: 99px; transition: width .2s; }
.upl-status { font-size: 11.5px; color: var(--text-faint); margin-top: 5px; }
.upl-status.ok { color: var(--ok); }
.upl-status.err { color: var(--danger); }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 34px; transform: translateX(-50%); z-index: 200;
  background: var(--input-bg); border: 1px solid var(--line-strong); color: var(--text);
  padding: 10px 18px; border-radius: 999px; font-size: 13px;
  box-shadow: var(--shadow); animation: toast-in .18s ease-out;
}
.toast[hidden] { display: none; }
.toast.err { border-color: rgba(255, 93, 108, .5); color: #ffb3ba; }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 8px); } }

@media (max-width: 1100px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .admin-row.two { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .sidebar { width: 64px; padding: 14px 6px; }
  .brand { padding: 4px 6px 14px; }
  .brand-text, .nav-label, .nav-count, .side-title span, .folder-item span.fname, .side-user, .side-empty { display: none; }
  .nav-item { justify-content: center; padding: 10px 0; }
  .folder-item { justify-content: center; }
  .side-title { justify-content: center; }
  .topbar { padding: 10px 12px; gap: 8px; }
  .search input { width: 110px; }
  main { padding: 14px 12px 30px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
  .hint { display: none; }
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .panel-tools { width: 100%; }
}

/* ---------- immersive player (juke style) ---------- */
.tp-overlay {
  position: fixed; inset: 0; z-index: 300; background: #05070d;
  display: flex; align-items: center; justify-content: center;
}
.tp-stage { position: relative; width: 100%; height: 100%; background: #000; overflow: hidden; }
.tp-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background: #000; }

.tp-top {
  position: absolute; top: 0; left: 0; right: 0; z-index: 4;
  display: flex; align-items: center; gap: 14px; padding: 16px 20px 40px;
  background: linear-gradient(180deg, rgba(5,7,13,.86), rgba(5,7,13,0) 100%);
  transition: opacity .3s, transform .3s;
}
.tp-title { flex: 1; min-width: 0; }
.tp-title b { display: block; font-size: 15px; font-weight: 650; color: #fff; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tp-title small { display: block; font-size: 12px; color: rgba(255,255,255,.5); margin-top: 2px; letter-spacing: .3px; }
.tp-top-right { display: flex; gap: 8px; }

.tp-round {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.1); color: #dbe3f5; display: grid; place-items: center;
  backdrop-filter: blur(8px); transition: background .18s, transform .18s; flex: none;
}
.tp-round:hover { background: rgba(255,255,255,.2); transform: scale(1.05); }

.tp-bigplay {
  position: absolute; inset: 0; margin: auto; width: 78px; height: 78px; z-index: 3;
  border-radius: 50%; border: 1.5px solid rgba(91,140,255,.55);
  background: rgba(91,140,255,.16); color: #cdd9ff; display: grid; place-items: center;
  backdrop-filter: blur(6px); transition: transform .18s, background .18s;
}
.tp-bigplay:hover { transform: scale(1.08); background: rgba(91,140,255,.3); }
.tp-bigplay[hidden] { display: none; }

.tp-ctrl {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 4;
  padding: 10px 24px 18px;
  background: linear-gradient(0deg, rgba(5,7,13,.97), rgba(5,7,13,.6) 62%, transparent);
  transition: opacity .3s, transform .3s;
}
.tp-track {
  height: 5px; border-radius: 5px; background: rgba(255,255,255,.16);
  position: relative; margin: 6px 0 14px; cursor: pointer; touch-action: none;
}
.tp-buf { position: absolute; inset: 0 auto 0 0; width: 0%; background: rgba(255,255,255,.18); border-radius: 5px; }
.tp-cur { position: absolute; inset: 0 auto 0 0; width: 0%; background: var(--accent); border-radius: 5px; }
.tp-knob {
  position: absolute; top: 50%; left: 0%; width: 13px; height: 13px; border-radius: 50%;
  background: #fff; transform: translate(-50%, -50%); box-shadow: 0 1px 6px rgba(0,0,0,.5);
  transition: transform .12s;
}
.tp-track:hover .tp-knob { transform: translate(-50%, -50%) scale(1.3); }

.tp-row { display: flex; align-items: center; gap: 4px; color: rgba(255,255,255,.72); }
.tp-btn {
  width: 38px; height: 38px; border-radius: 9px; border: 0; background: transparent;
  color: inherit; display: grid; place-items: center; transition: background .15s, color .15s; flex: none;
}
.tp-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.tp-btn.tp-main { color: #fff; }
.tp-time { font-size: 12.5px; font-variant-numeric: tabular-nums; color: rgba(255,255,255,.68); margin: 0 8px; white-space: nowrap; }
.tp-grow { flex: 1; }
.tp-vol { width: 74px; accent-color: var(--accent); cursor: pointer; }
.tp-pill {
  display: inline-flex; align-items: center; gap: 6px; border: 0; border-radius: 8px;
  padding: 7px 12px; background: rgba(255,255,255,.08); color: rgba(255,255,255,.8);
  font-size: 12.5px; margin: 0 4px; transition: background .15s; white-space: nowrap;
}
.tp-pill:hover { background: rgba(255,255,255,.16); color: #fff; }

.tp-speed-menu {
  position: absolute; right: 74px; bottom: 92px; z-index: 6;
  background: #171b23; border: 1px solid #2b313c; border-radius: 12px; padding: 8px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; box-shadow: var(--shadow);
}
.tp-speed-menu[hidden] { display: none; }
.tp-speed-opt {
  border: 0; background: transparent; color: var(--text-dim); border-radius: 7px;
  padding: 7px 10px; font-size: 12.5px;
}
.tp-speed-opt:hover { background: rgba(255,255,255,.08); color: var(--text); }
.tp-speed-opt.on { background: var(--accent); color: #fff; font-weight: 600; }

.tp-loading {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); z-index: 5;
  padding: 9px 18px; border-radius: 999px; background: rgba(10,12,18,.82);
  border: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.75); font-size: 12.5px;
}
.tp-loading[hidden] { display: none; }

.tp-overlay.tp-dim .tp-top,
.tp-overlay.tp-dim .tp-ctrl { opacity: 0; pointer-events: none; }
.tp-overlay.tp-dim { cursor: none; }

/* ---------- image viewer ---------- */
.tv-overlay {
  position: fixed; inset: 0; z-index: 300; background: rgba(4,6,10,.97);
  display: flex; flex-direction: column; user-select: none;
}
.tv-top {
  display: flex; align-items: center; gap: 14px; padding: 14px 20px;
  background: linear-gradient(180deg, rgba(4,6,10,.9), transparent);
}
.tv-title { flex: 1; min-width: 0; }
.tv-title b { display: block; font-size: 14px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tv-title small { display: block; font-size: 12px; color: var(--text-faint); margin-top: 1px; font-variant-numeric: tabular-nums; }
.tv-round {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.08); color: var(--text-dim); display: grid; place-items: center;
}
.tv-round:hover { background: rgba(255,255,255,.16); color: #fff; }

.tv-stage {
  flex: 1; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center;
  cursor: grab; touch-action: none;
}
.tv-stage.grabbing { cursor: grabbing; }
.tv-img {
  max-width: 100%; max-height: 100%; width: auto; height: auto;
  transform-origin: center center; will-change: transform;
  transition: transform .06s linear; border-radius: 2px;
  box-shadow: 0 10px 60px rgba(0,0,0,.5);
}
.tv-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  width: 44px; height: 64px; border: 0; border-radius: 10px;
  background: rgba(255,255,255,.07); color: rgba(255,255,255,.8); display: grid; place-items: center;
}
.tv-nav:hover { background: rgba(255,255,255,.16); color: #fff; }
.tv-nav.prev { left: 16px; }
.tv-nav.next { right: 16px; }

.tv-bar {
  display: flex; align-items: center; justify-content: center; gap: 5px;
  padding: 12px 20px 18px; background: linear-gradient(0deg, rgba(4,6,10,.95), transparent);
}
.tv-btn {
  width: 40px; height: 40px; border-radius: 10px; border: 0; background: transparent;
  color: var(--text-dim); display: grid; place-items: center; transition: background .15s, color .15s;
}
.tv-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.tv-zoom {
  min-width: 56px; text-align: center; font-size: 12.5px; color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}
.tv-sep { width: 1px; height: 22px; background: rgba(255,255,255,.14); margin: 0 6px; }

@media (max-width: 720px) {
  .tp-ctrl { padding: 8px 12px 12px; }
  .tp-vol { display: none; }
  .tp-pill { padding: 6px 8px; }
  .tp-time { margin: 0 3px; }
  .tv-nav { width: 36px; height: 52px; }
  .tv-bar { gap: 2px; padding: 10px 8px 14px; }
  .tv-btn { width: 36px; height: 36px; }
}

/* ==================== v3 additions ==================== */

/* sidebar extras */
.nav-caption { font-size: 11px; letter-spacing: .6px; color: var(--text-faint); padding: 4px 10px 6px; text-transform: uppercase; }
.side-tools { display: flex; flex-direction: column; gap: 2px; padding-top: 8px; border-top: 1px solid var(--line-soft); }
.avatar {
  display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff;
  font-size: 12.5px; font-weight: 700; margin-right: 8px; vertical-align: middle;
}
.side-user { display: flex; align-items: center; padding: 8px 10px 10px; font-size: 12.5px; color: var(--text-dim); }
.side-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.theme-ico { display: inline-grid; place-items: center; width: 17px; }

/* card checkbox + video poster */
.card { position: relative; }
.card-check {
  position: absolute; top: 9px; left: 9px; z-index: 3; display: grid; place-items: center;
  width: 22px; height: 22px; border-radius: 7px; background: rgba(8, 10, 14, .55);
  border: 1px solid rgba(255, 255, 255, .22); opacity: 0; transition: opacity .15s;
  cursor: pointer; backdrop-filter: blur(4px);
}
.card:hover .card-check, .card.selected .card-check { opacity: 1; }
.card.selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.card-check input { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; }
.vid-thumb { position: relative; width: 100%; height: 100%; background: var(--thumb-bg); }
.vid-thumb video { width: 100%; height: 100%; object-fit: cover; display: block; }
.vid-play {
  position: absolute; inset: 0; margin: auto; width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center; color: #fff; font-size: 15px; padding-left: 3px;
  background: rgba(10, 12, 18, .55); border: 1px solid rgba(255, 255, 255, .25); backdrop-filter: blur(4px);
  pointer-events: none;
}
.card:hover .vid-play { background: rgba(91, 140, 255, .75); }
.info .name { cursor: pointer; }
.info .name:hover { color: var(--accent); }

/* bulk action bar */
.bulk-bar {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%);
  z-index: 120; display: flex; align-items: center; gap: 10px;
  background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px;
  padding: 8px 12px 8px 18px; box-shadow: var(--shadow); backdrop-filter: blur(12px);
}
.bulk-count { font-size: 13px; color: var(--text-dim); }
.bulk-count b { color: var(--accent); }

/* detail modal */
.detail-box { display: flex; flex-direction: column; gap: 14px; min-width: min(460px, 76vw); }
.detail-head { display: flex; gap: 14px; align-items: center; }
.detail-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 25px; background: var(--accent-soft); border: 1px solid rgba(91, 140, 255, .2); }
.detail-title h3 { margin: 0 0 3px; font-size: 16px; font-weight: 650; word-break: break-all; }
.detail-title p { margin: 0; font-size: 12.5px; color: var(--text-dim); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; }
.detail-row { display: flex; justify-content: space-between; gap: 10px; font-size: 12.5px; padding: 7px 10px; background: var(--bg-soft); border-radius: 8px; }
.detail-row span { color: var(--text-faint); flex: none; }
.detail-row b { font-weight: 550; text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.detail-actions { display: flex; gap: 8px; flex-wrap: wrap; padding-top: 2px; }
.preview-fallback { padding: 28px; color: var(--text-dim); }

/* share panel */
.share-overlay { position: fixed; inset: 0; z-index: 400; display: grid; place-items: center; }
.share-backdrop { position: absolute; inset: 0; background: rgba(4, 6, 10, .66); backdrop-filter: blur(6px); }
.share-panel {
  position: relative; width: min(440px, calc(100vw - 40px));
  background: var(--modal-grad); border: 1px solid var(--line-strong); border-radius: 18px;
  box-shadow: var(--shadow); padding: 20px 22px 18px; animation: pop .18s ease-out;
}
@keyframes pop { from { transform: scale(.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.share-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.share-head h3 { margin: 0; font-size: 16px; font-weight: 650; }
.share-x { border: 0; background: transparent; color: var(--text-dim); font-size: 22px; line-height: 1; cursor: pointer; }
.share-file { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--bg-soft); border-radius: 10px; margin-bottom: 14px; }
.share-ficon { font-size: 18px; }
.share-fname { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.share-label { display: block; font-size: 12px; color: var(--text-faint); margin: 8px 0 6px; }
.share-row { display: flex; gap: 8px; }
.share-input {
  flex: 1; min-width: 0; padding: 9px 11px; background: var(--input-bg);
  border: 1px solid var(--line); border-radius: 9px; color: var(--text); font-size: 12.5px;
}
.share-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.share-hint { margin: 12px 0 0; font-size: 11.5px; color: var(--text-faint); }
.btn.ok { border-color: var(--ok); color: var(--ok); }

/* developer keys */
.key-create { display: flex; gap: 8px; margin-bottom: 12px; }
.input {
  flex: 1; min-width: 0; padding: 8px 11px; background: var(--input-bg);
  border: 1px solid var(--line); border-radius: 9px; color: var(--text); font-size: 13px;
}
.key-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 2px; border-top: 1px solid var(--line-soft); }
.key-row:first-of-type { border-top: 0; }
.key-name { font-size: 13.5px; font-weight: 550; }
.key-meta { font-size: 11.5px; color: var(--text-faint); margin-top: 2px; }
.key-new { background: var(--accent-soft); border: 1px solid rgba(91, 140, 255, .28); border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; }
.key-new-label { font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 7px; }

/* docs */
.doc-block { display: flex; flex-direction: column; gap: 7px; }
.doc-p { margin: 4px 0 0; font-size: 12.5px; color: var(--text-dim); }
.code {
  margin: 0; padding: 10px 12px; background: var(--bg-soft); border: 1px solid var(--line-soft);
  border-radius: 9px; font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--text); overflow-x: auto; white-space: pre;
}
.doc-table code { font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--accent); }
.doc-foot { padding: 12px 2px 2px; }
.method { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 700; letter-spacing: .3px; }
.method-get { color: #34d399; background: rgba(52, 211, 153, .1); }
.method-post { color: #60a5fa; background: rgba(96, 165, 250, .12); }
.method-patch { color: #fbbf24; background: rgba(251, 191, 36, .12); }
.method-delete { color: #f87171; background: rgba(248, 113, 113, .12); }
.page-note { font-size: 12px; color: var(--text-faint); margin: 14px 4px; }

/* upload row extras */
.upl-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.upl-actions { display: flex; gap: 6px; flex: none; }
.upl-mini {
  border: 1px solid var(--line); background: var(--card); color: var(--text-dim);
  font-size: 11.5px; padding: 3px 9px; border-radius: 6px; cursor: pointer;
}
.upl-mini:hover { border-color: var(--accent); color: var(--accent); }
.upl-mini.danger:hover { border-color: var(--danger); color: var(--danger); }

/* player resume tip */
.tp-resume {
  position: absolute; left: 50%; top: 72px; transform: translateX(-50%);
  background: rgba(10, 12, 18, .78); color: rgba(255, 255, 255, .85);
  border: 1px solid rgba(255, 255, 255, .12); border-radius: 999px;
  padding: 8px 16px; font-size: 12.5px; animation: fadein .2s;
}
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

/* viewer top actions */
.tv-top-actions { display: flex; gap: 8px; align-items: center; }

/* light theme fixups */
:root[data-theme="light"] .nav-item.active { color: var(--accent); }
:root[data-theme="light"] .card { box-shadow: 0 1px 2px rgba(15, 23, 42, .04); }
:root[data-theme="light"] .card:hover { box-shadow: 0 10px 28px rgba(15, 23, 42, .10); }
:root[data-theme="light"] .tp-overlay, :root[data-theme="light"] .tv-overlay { color-scheme: dark; }
:root[data-theme="light"] .share-backdrop { background: rgba(15, 23, 42, .35); }

/* ==================== mobile (≤640px) ==================== */
.mobile-menu-btn { display: none; }
.sidebar-mask { display: none; }

@media (max-width: 640px) {
  .app-shell { display: block; }
  .main-col { width: 100%; }
  .mobile-menu-btn {
    display: grid; place-items: center; position: fixed; left: 10px; top: 10px; z-index: 130;
    width: 38px; height: 38px; border-radius: 10px; background: var(--card);
    border: 1px solid var(--line-strong); color: var(--text); font-size: 18px;
    box-shadow: var(--shadow); cursor: pointer;
  }
  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; width: 264px; z-index: 140;
    transform: translateX(-100%); transition: transform .2s ease; padding: 18px 12px;
    box-shadow: 0 0 40px rgba(0, 0, 0, .35); overflow-y: auto;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-mask { display: block; position: fixed; inset: 0; z-index: 135; background: rgba(0, 0, 0, .45); }
  .sidebar-mask[hidden] { display: none; }
  .brand-text, .nav-label, .nav-count, .side-title span, .folder-item span.fname, .side-user, .side-empty { display: initial; }
  .nav-item { justify-content: flex-start; padding: 10px 12px; }
  .folder-item { justify-content: flex-start; }
  .side-title { justify-content: space-between; }
  .topbar { padding: 10px 10px 10px 56px; gap: 8px; flex-wrap: wrap; }
  .search { flex: 1 1 100%; order: 5; }
  .search input { width: 100%; }
  main { padding: 12px 10px 90px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .card .thumb { height: 110px; }
  .stat-cards { grid-template-columns: 1fr 1fr; gap: 10px; }
  .admin-row.two, .admin-row.stack { grid-template-columns: 1fr; }
  .panel { overflow-x: auto; }
  .data-table { min-width: 640px; }
  .bulk-bar { left: 10px; right: 10px; transform: none; bottom: 10px; justify-content: space-between; padding: 8px 10px 8px 14px; }
  .modal-box, .detail-box { min-width: 0; width: calc(100vw - 24px); max-height: 86vh; }
  .detail-grid { grid-template-columns: 1fr; }
  .tp-top { padding: 10px 10px 10px 10px; }
  .tp-title b { font-size: 13px; }
  .tp-title small { display: none; }
  .tp-round { width: 38px; height: 38px; }
  .tv-nav { display: none; }
  .tv-top { padding: 10px; }
  .tv-bar { flex-wrap: wrap; gap: 4px; padding: 8px 8px 12px; }
  .tv-btn { width: 38px; height: 38px; }
  .tv-zoom { min-width: 44px; font-size: 11.5px; }
  .auth-card { min-width: 0; width: calc(100vw - 28px); padding: 22px 18px; }
}

/* Plyr integration */
:root { --plyr-color-main: #5b8cff; --plyr-video-control-color: #fff; --plyr-video-background: #000; }
.tp-stage .plyr { position: absolute; inset: 0; width: 100%; height: 100%; }
.tp-stage .plyr__video-wrapper { height: 100%; }
.tp-stage .plyr__video-wrapper video { object-fit: contain; }
.tp-stage .plyr__controls { background: linear-gradient(0deg, rgba(5, 7, 13, .97), rgba(5, 7, 13, .55) 70%, transparent); }