:root {
  color-scheme: dark;

  --bg: #0b1220;
  --bg-soft: #0f172a;
  --panel: #111c33;
  --panel-2: #16233e;
  --border: #1e2c48;
  --border-strong: #2b3d61;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  --accent: #22d3ee;
  --accent-dim: #155e75;
  --accent-ink: #06121a;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.12);
  --radius: 10px;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: radial-gradient(1200px 600px at 70% -10%, #14263f 0%, transparent 60%), var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
}

/* ------------------------------------------------ top bar */

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(13, 20, 36, 0.72);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand .logo {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: linear-gradient(135deg, #164e63, #22d3ee);
  display: grid;
  place-items: center;
  color: #04121c;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12px;
}

.nav {
  display: flex;
  gap: 4px;
  margin-left: 10px;
}

.nav a {
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.12s ease, color 0.12s ease;
}

.nav a:hover {
  color: var(--text);
  background: var(--panel);
}

.nav a.active {
  color: var(--accent);
  background: var(--panel-2);
  border-color: var(--border-strong);
}

.topbar .spacer {
  flex: 1;
}

.session-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--mono);
}

.session-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.8);
}

/* ------------------------------------------------ layout */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 22px 80px;
}

/* ------------------------------------------------ stats */

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.stat-card .label {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.stat-card .value {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-family: var(--mono);
}

.stat-card .sub {
  color: var(--text-faint);
  font-size: 12px;
  margin-top: 4px;
  font-family: var(--mono);
}

/* ------------------------------------------------ panel */

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

.panel-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.panel-head .title {
  font-weight: 600;
  font-size: 14px;
}

.panel-head .spacer {
  flex: 1;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ------------------------------------------------ forms */

input[type="text"],
input[type="password"],
input[type="search"] {
  background: var(--bg-soft);
  border: 1px solid var(--border-strong);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--mono);
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}

.labeled {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.labeled label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ------------------------------------------------ buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-strong);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.06s ease;
}

.btn:hover {
  background: var(--border-strong);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  background: #38bdf8;
}

.btn-danger {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.4);
  background: var(--danger-bg);
}

.btn-danger:hover {
  background: rgba(248, 113, 113, 0.22);
}

.btn-ghost {
  background: transparent;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

/* ------------------------------------------------ table */

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

table.files {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

table.files th {
  text-align: left;
  padding: 10px 14px;
  color: var(--text-faint);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table.files td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

table.files tr:last-child td {
  border-bottom: none;
}

table.files tbody tr {
  transition: background 0.1s ease;
}

table.files tbody tr:hover {
  background: var(--panel-2);
}

.fname {
  font-family: var(--mono);
  font-size: 12.5px;
  word-break: break-all;
  max-width: 520px;
}

.fdir {
  color: var(--accent);
}

.tnum {
  font-family: var(--mono);
  color: var(--text-muted);
  white-space: nowrap;
}

.hash-cell {
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 11.5px;
  white-space: nowrap;
}

.type-cell {
  font-family: var(--mono);
  color: var(--text-muted);
  font-size: 11.5px;
}

.row-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.empty {
  padding: 42px 20px;
  text-align: center;
  color: var(--text-muted);
}

.empty .hint {
  font-size: 12px;
  color: var(--text-faint);
  margin-top: 6px;
}

.load-more {
  padding: 12px;
  display: flex;
  justify-content: center;
  border-top: 1px solid var(--border);
}

/* ------------------------------------------------ badges */

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-family: var(--mono);
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}

/* ------------------------------------------------ login */

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 34px 30px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.login-card .brand-lg {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.login-card .logo-lg {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #164e63, #22d3ee);
  display: grid;
  place-items: center;
  color: #04121c;
  font-weight: 700;
  font-family: var(--mono);
  font-size: 17px;
}

.login-card h1 {
  font-size: 18px;
  margin: 0;
}

.login-card .subtitle {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 24px;
}

.login-card form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.login-card input[type="password"] {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
}

.login-error {
  background: var(--danger-bg);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: var(--danger);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13px;
}

.login-foot {
  margin-top: 20px;
  color: var(--text-faint);
  font-size: 11.5px;
  text-align: center;
  font-family: var(--mono);
}

/* ------------------------------------------------ dropzone */

.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 44px 24px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(34, 211, 238, 0.06);
  color: var(--text);
}

.dropzone .big {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.dropzone .sub {
  font-size: 13px;
}

.dropzone .sub .link {
  color: var(--accent);
  text-decoration: underline;
}

.upload-form-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: end;
  margin-bottom: 22px;
}

/* ------------------------------------------------ upload queue */

.upload-queue {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.upload-item {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

.upload-item .row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.upload-item .name {
  font-family: var(--mono);
  font-size: 12.5px;
  word-break: break-all;
  flex: 1;
  min-width: 200px;
}

.upload-item .meta {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--mono);
  white-space: nowrap;
}

.progress-bar {
  height: 8px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin-top: 8px;
}

.progress-bar .fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, #0ea5e9, var(--accent));
  transition: width 0.2s ease;
}

.progress-bar .fill.fail,
.progress-bar .fill.done {
  background: var(--ok);
}

.upload-item.status-done {
  border-color: rgba(52, 211, 153, 0.4);
}

.upload-item.status-fail {
  border-color: rgba(248, 113, 113, 0.5);
}

/* ------------------------------------------------ toast */

.toasts {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 60;
}

.toast {
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  color: var(--text);
  padding: 11px 14px;
  border-radius: 8px;
  font-size: 13px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  max-width: 360px;
  animation: slide-in 0.18s ease;
}

.toast.ok {
  border-left-color: var(--ok);
}

.toast.error {
  border-left-color: var(--danger);
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ------------------------------------------------ confirm modal */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 16, 0.72);
  display: grid;
  place-items: center;
  z-index: 50;
  backdrop-filter: blur(2px);
}

.modal {
  width: min(440px, calc(100vw - 32px));
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 22px;
}

.modal h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.modal .body {
  color: var(--text-muted);
  font-size: 13px;
  word-break: break-all;
  font-family: var(--mono);
  margin-bottom: 18px;
}

.modal .actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ------------------------------------------------ misc */

.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

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

.mono {
  font-family: var(--mono);
}

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

.stacked {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hidden {
  display: none !important;
}

@media (max-width: 720px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-wrap: wrap;
  }

  .nav {
    order: 3;
    width: 100%;
  }

  .upload-form-grid {
    grid-template-columns: 1fr;
  }
}