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

:root {
  --bg: #1a1a2e;
  --card: #16213e;
  --accent: #0f3460;
  --accent2: #1a4a7a;
  --text: #e0e0e0;
  --text-muted: #8a8a9a;
  --border: #2a2a4a;
  --danger: #dc3545;
  --success: #28a745;
  --warning: #ffc107;
  --info: #17a2b8;
  --sidebar-w: 220px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-logo {
  padding: 20px 16px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  letter-spacing: .5px;
}

.sidebar-logo span { color: #4a9eff; }

.sidebar-nav { flex: 1; padding: 12px 0; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: .875rem;
  transition: all .15s;
  border-left: 3px solid transparent;
}

.sidebar-nav a:hover { color: var(--text); background: rgba(255,255,255,.04); }
.sidebar-nav a.active { color: #4a9eff; background: rgba(74,158,255,.08); border-left-color: #4a9eff; }

.sidebar-nav .icon { font-size: 1rem; width: 18px; text-align: center; }

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}

.sidebar-footer a {
  display: block;
  font-size: .8rem;
  color: var(--text-muted);
  text-decoration: none;
}
.sidebar-footer a:hover { color: var(--text); }

/* ── Main ── */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 28px 32px;
  min-width: 0;
}

.page-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--text);
}

/* ── Cards ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

.card-title {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* ── Stat grid ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
}

.stat-card .stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-card .stat-label {
  font-size: .75rem;
  color: var(--text-muted);
}

.stat-card.pending .stat-num  { color: #8a8a9a; }
.stat-card.downloading .stat-num { color: #4a9eff; }
.stat-card.uploading .stat-num { color: var(--warning); }
.stat-card.done .stat-num    { color: var(--success); }
.stat-card.error .stat-num   { color: var(--danger); }
.stat-card.skipped .stat-num { color: #fd7e14; }

/* ── Worker status row ── */
.worker-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.worker-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 600;
}

.worker-badge.on  { background: rgba(40,167,69,.2);  color: var(--success); }
.worker-badge.off { background: rgba(220,53,69,.2);  color: var(--danger); }

.worker-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.worker-info {
  font-size: .85rem;
  color: var(--text-muted);
}

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: .75rem;
  font-weight: 600;
  white-space: nowrap;
}

.badge-pending    { background: rgba(138,138,154,.2); color: #aaa; }
.badge-downloading{ background: rgba(74,158,255,.2);  color: #4a9eff; }
.badge-uploading  { background: rgba(255,193,7,.2);   color: #ffc107; }
.badge-done       { background: rgba(40,167,69,.2);   color: #28a745; }
.badge-error      { background: rgba(220,53,69,.2);   color: #e05060; }
.badge-skipped    { background: rgba(253,126,20,.2);  color: #fd7e14; }
.badge-thumb_done { background: rgba(40,167,69,.15);  color: #28a745; }
.badge-thumb_error{ background: rgba(220,53,69,.2);   color: #e05060; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border: none;
  border-radius: 5px;
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: opacity .15s;
}
.btn:hover { opacity: .85; }

.btn-primary  { background: #4a9eff; color: #fff; }
.btn-danger   { background: var(--danger); color: #fff; }
.btn-success  { background: var(--success); color: #fff; }
.btn-warning  { background: var(--warning); color: #111; }
.btn-secondary{ background: var(--accent2); color: var(--text); }
.btn-sm { padding: 4px 10px; font-size: .78rem; }

/* ── Forms ── */
.form-group { margin-bottom: 16px; }

label {
  display: block;
  font-size: .82rem;
  color: var(--text-muted);
  margin-bottom: 5px;
}

input[type=text],
input[type=password],
input[type=number],
textarea,
select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  padding: 8px 12px;
  font-size: .875rem;
  outline: none;
  transition: border-color .15s;
}
input:focus, textarea:focus, select:focus { border-color: #4a9eff; }

textarea { resize: vertical; font-family: 'Courier New', monospace; }

input[type=checkbox] { width: auto; margin-right: 6px; }

/* ── Alerts / flash ── */
.alerts { margin-bottom: 20px; }

.alert {
  padding: 10px 14px;
  border-radius: 5px;
  font-size: .875rem;
  margin-bottom: 8px;
}
.alert-info  { background: rgba(23,162,184,.18); color: #5bc8d8; border-left: 3px solid #17a2b8; }
.alert-error { background: rgba(220,53,69,.18);  color: #e07080; border-left: 3px solid #dc3545; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}

thead th {
  padding: 10px 12px;
  text-align: left;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
tbody tr:hover { background: rgba(255,255,255,.025); }

tbody td {
  padding: 9px 12px;
  color: var(--text);
  vertical-align: middle;
}

.td-truncate {
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-muted { color: var(--text-muted); }

/* ── Filter tabs ── */
.filter-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.filter-tab {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .8rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--text-muted);
  background: var(--card);
  border: 1px solid var(--border);
  transition: all .15s;
}
.filter-tab:hover { color: var(--text); }
.filter-tab.active { background: #4a9eff; border-color: #4a9eff; color: #fff; }

/* ── Pagination ── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  margin-top: 20px;
  flex-wrap: wrap;
}

.page-link {
  padding: 5px 11px;
  border-radius: 4px;
  font-size: .82rem;
  text-decoration: none;
  color: var(--text-muted);
  background: var(--card);
  border: 1px solid var(--border);
  transition: all .15s;
}
.page-link:hover { color: var(--text); border-color: #4a9eff; }
.page-link.active { background: #4a9eff; border-color: #4a9eff; color: #fff; }
.page-link.disabled { opacity: .4; pointer-events: none; }

/* ── Detail grid ── */
.detail-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 10px 16px;
  font-size: .875rem;
}

.detail-label { color: var(--text-muted); }
.detail-value { color: var(--text); word-break: break-word; }

/* ── Login page ── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  width: 100%;
  background: var(--bg);
}

.login-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 36px 32px;
  width: 100%;
  max-width: 360px;
}

.login-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
  text-align: center;
}

/* ── Row helpers ── */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.mb-0 { margin-bottom: 0; }
.mt-12 { margin-top: 12px; }

/* ── Link icon ── */
.icon-link {
  color: #4a9eff;
  text-decoration: none;
  font-size: 1rem;
}
.icon-link:hover { color: #82bfff; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  .sidebar { transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; padding: 16px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
}