:root {
  --bg: #0f1117;
  --panel: #181b24;
  --border: #2a2e3a;
  --text: #f1f2f6;
  --muted: #8b90a3;

  /* Colorful accents */
  --accent: #8b5cf6;        /* violet */
  --accent2: #06b6d4;       /* cyan */
  --accent3: #f472b6;       /* pink */
  --success: #34d399;       /* green */
  --danger: #f87171;        /* red */

  --gradient: linear-gradient(135deg, var(--accent), var(--accent2));
  --gradient-hover: linear-gradient(135deg, #9d6bff, #22c7e8);

  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 15% 0%, rgba(139, 92, 246, 0.12), transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(6, 182, 212, 0.10), transparent 40%);
  background-attachment: fixed;
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

header h1 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

header h1 .muted {
  -webkit-background-clip: initial;
  background-clip: initial;
  color: var(--muted);
  background: none;
}

main {
  flex: 1;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 1.5rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  position: relative;
  overflow: hidden;
}

.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  opacity: 0.7;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background-color 0.15s;
}

.dropzone:hover {
  border-color: var(--accent2);
  color: var(--text);
}

.dropzone.dragover {
  border-color: var(--accent);
  color: var(--text);
  background-color: rgba(139, 92, 246, 0.08);
}

.dropzone input[type="file"] {
  display: none;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #11131a;
  color: var(--text);
  font-size: 0.95rem;
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--accent2);
}

.field {
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.2rem;
  border-radius: 8px;
  border: none;
  background: var(--gradient);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, transform 0.05s;
}

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

.btn:active {
  transform: scale(0.98);
}

.btn.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 500;
}

.btn.secondary:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--accent2);
}

.btn.danger {
  background: var(--danger);
}

.btn.danger:hover {
  background: #fb8a8a;
}

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

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1rem;
}

.stat-box {
  background: #11131a;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.stat-value {
  font-size: 1.05rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 1rem;
}

.progress {
  height: 8px;
  border-radius: 4px;
  background: var(--border);
  overflow: hidden;
  margin-top: 0.35rem;
  display: none;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  transition: width 0.1s;
}

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.file-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  gap: 0.75rem;
}

.file-list li.queued {
  flex-direction: column;
  align-items: stretch;
}

.file-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
}

.file-progress {
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
  margin-top: 0.5rem;
  width: 100%;
}

.file-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  transition: width 0.1s;
}

.file-progress-bar.done {
  background: var(--success);
}

.file-progress-bar.error {
  background: var(--danger);
}

.file-percent {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

.file-list li:last-child {
  border-bottom: none;
}

.file-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.file-name {
  word-break: break-all;
}

.file-meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.share-link-box {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.share-link-box input {
  flex: 1;
}

.qr-wrap {
  margin-top: 1rem;
  text-align: center;
}

.qr-wrap canvas, .qr-wrap img {
  background: #fff;
  padding: 8px;
  border-radius: 8px;
}

.muted {
  color: var(--muted);
  font-size: 0.85rem;
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

details summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.85rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 500;
}

footer {
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: 0.8rem;
}

a {
  color: var(--accent2);
}

/* Search/sort toolbar on the download page */
.toolbar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.toolbar input[type="text"] {
  flex: 1;
}

.toolbar select {
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #11131a;
  color: var(--text);
  font-size: 0.9rem;
}

.toolbar select:focus {
  outline: none;
  border-color: var(--accent2);
}

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 1.5rem 0;
}