:root {
  --bg: #0c1117;
  --bg-accent: #122033;
  --surface: #151c26;
  --surface-2: #1c2533;
  --line: rgba(148, 163, 184, 0.16);
  --text: #e7eef7;
  --muted: #8b9bb0;
  --accent: #3aa0ff;
  --accent-2: #5eead4;
  --danger: #fb7185;
  --warn: #fbbf24;
  --ok: #34d399;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Code", "Noto Sans Mono", monospace;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(58, 160, 255, 0.16), transparent 55%),
    radial-gradient(900px 420px at 100% 0%, rgba(94, 234, 212, 0.1), transparent 50%),
    var(--bg);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input {
  font: inherit;
}

.app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 3rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-mark,
.login-mark {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 0.7rem;
  background:
    linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 4px rgba(58, 160, 255, 0.12);
}

.nav {
  display: flex;
  gap: 0.4rem;
  padding: 0.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.nav-link {
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-link.is-active,
.nav-link:hover {
  color: var(--text);
  background: rgba(58, 160, 255, 0.16);
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

h1 {
  margin: 0 0 0.25rem;
  font-size: 1.7rem;
  letter-spacing: -0.03em;
}

.lede,
.login-copy,
.toolbar-meta,
.empty,
.muted {
  color: var(--muted);
}

.lede {
  margin: 0;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  flex-wrap: wrap;
}

.toolbar-actions {
  margin-left: auto;
  display: flex;
  gap: 0.5rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th, td {
  padding: 0.85rem 1rem;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
}

th {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.02);
}

tbody tr:hover {
  background: rgba(58, 160, 255, 0.05);
}

.col-check {
  width: 2.5rem;
}

.col-actions {
  width: 8.5rem;
}

.file-name,
code {
  font-family: var(--mono);
  font-size: 0.92rem;
  overflow-wrap: anywhere;
}

.file-cell {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.file-kind {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--muted);
  flex: 0 0 auto;
}

.file-kind.video { background: #60a5fa; }
.file-kind.audio { background: #c084fc; }
.file-kind.image { background: #f59e0b; }

.empty {
  text-align: center;
  padding: 2.5rem 1rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 0.8rem;
  padding: 0.48rem 0.85rem;
  cursor: pointer;
  color: var(--text);
  background: var(--surface-2);
  transition: transform 0.12s ease, opacity 0.12s ease, background 0.12s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  font-weight: 600;
}

.btn-secondary {
  background: rgba(58, 160, 255, 0.14);
  border-color: rgba(58, 160, 255, 0.28);
}

.btn-danger {
  background: rgba(251, 113, 133, 0.12);
  border-color: rgba(251, 113, 133, 0.3);
  color: #fecdd3;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
}

.btn-block {
  width: 100%;
  padding: 0.8rem 1rem;
}

.row-actions {
  display: flex;
  gap: 0.35rem;
  flex-wrap: nowrap;
}

.btn-icon {
  width: 2.05rem;
  height: 2.05rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.7rem;
}

.btn-icon svg {
  width: 1.05rem;
  height: 1.05rem;
}

.btn-icon-danger {
  background: rgba(251, 113, 133, 0.12);
  border-color: rgba(251, 113, 133, 0.3);
  color: #fecdd3;
}

.btn-icon-muted {
  background: transparent;
  border-color: var(--line);
}

.btn-icon-accent {
  background: rgba(58, 160, 255, 0.14);
  border-color: rgba(58, 160, 255, 0.28);
}

.dialog {
  width: min(420px, calc(100% - 2rem));
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  padding: 1.4rem 1.3rem 1.2rem;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

.dialog::backdrop {
  background: rgba(6, 10, 16, 0.62);
}

.dialog h2 {
  margin: 0 0 1rem;
  font-size: 1.15rem;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.18rem 0.6rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-ok { background: rgba(52, 211, 153, 0.14); color: #6ee7b7; }
.badge-muted { background: rgba(148, 163, 184, 0.12); color: #cbd5e1; }
.badge-danger { background: rgba(251, 113, 133, 0.14); color: #fda4af; }
.badge-warn { background: rgba(251, 191, 36, 0.14); color: #fde68a; }
.badge-info { background: rgba(58, 160, 255, 0.14); color: #93c5fd; }

.badge.is-busy::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: currentColor;
  animation: pulse 1s ease-in-out infinite;
}

.alert {
  margin: 1rem;
  padding: 0.8rem 0.95rem;
  border-radius: 0.9rem;
  border: 1px solid var(--line);
}

.alert-ok {
  background: rgba(52, 211, 153, 0.1);
  color: #bbf7d0;
}

.alert-error {
  background: rgba(251, 113, 133, 0.1);
  color: #fecdd3;
}

.alert-warn {
  background: rgba(251, 191, 36, 0.1);
  color: #fde68a;
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  user-select: none;
}

.check input {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--accent);
}

.queue-chip {
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: rgba(94, 234, 212, 0.12);
  color: var(--accent-2);
  font-size: 0.85rem;
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    linear-gradient(rgba(12, 17, 23, 0.55), rgba(12, 17, 23, 0.8)),
    radial-gradient(circle at 1px 1px, rgba(148, 163, 184, 0.18) 1px, transparent 0) 0 0 / 28px 28px,
    var(--bg);
}

.login-card {
  width: min(420px, 100%);
  padding: 2rem 1.7rem 1.7rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  box-shadow: var(--shadow);
}

.login-kicker {
  margin: 1rem 0 0.35rem;
  color: var(--accent-2);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.login-form {
  display: grid;
  gap: 1rem;
  margin-top: 1.3rem;
}

.field {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.field input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--text);
  border-radius: 0.9rem;
  padding: 0.8rem 0.9rem;
  outline: none;
}

.field input:focus {
  border-color: rgba(58, 160, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(58, 160, 255, 0.15);
}

.form-error {
  margin: 0;
  color: var(--danger);
  font-size: 0.9rem;
}

@keyframes pulse {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

@media (max-width: 720px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .toolbar-actions {
    margin-left: 0;
    width: 100%;
  }

  .toolbar-actions .btn {
    flex: 1;
  }
}