:root {
  --bg: #0b0c0e;
  --card: #131417;
  --card-2: #191a1e;
  --border: #24262b;
  --text: #eef0f2;
  --muted: #90939b;
  --accent: #7c8ba1;
  --accent-rgb: 124, 139, 161;
  --accent-strong: #aab4c4;
  --accent-contrast: #14161a;
  --danger: #d97467;
  font-family: "Manrope", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #101114 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 20px 40px;
}

.hero {
  text-align: center;
  margin-bottom: 32px;
}

.hero-badge {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 40px;
  margin: 0 0 12px;
  font-weight: 800;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 14px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.06);
}

.dropzone svg {
  color: var(--muted);
  margin-bottom: 8px;
}

.dropzone p {
  margin: 4px 0;
}

.dropzone .hint {
  color: var(--muted);
  font-size: 13px;
}

.dropzone-content.has-file svg {
  color: var(--accent);
}

.options {
  margin-top: 24px;
}

.option-label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.model-choices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.model-choice {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.model-choice input {
  position: absolute;
  opacity: 0;
}

.model-choice span {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.model-choice small {
  color: var(--muted);
  font-size: 12px;
}

.model-choice:has(input:checked) {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.1);
}

.mwf-toggle {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
}

.mwf-toggle input {
  margin-top: 3px;
  accent-color: var(--accent-strong);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.mwf-toggle span {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mwf-toggle small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.limitation-note {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
  padding: 10px 12px;
  border-left: 2px solid var(--border);
}

.limitation-note strong {
  color: var(--text);
}

button[type="submit"] {
  width: 100%;
  margin-top: 24px;
  padding: 14px;
  border: none;
  border-radius: 12px;
  background: var(--accent-strong);
  color: var(--accent-contrast);
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

button[type="submit"]:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

button[type="submit"]:not(:disabled):hover {
  transform: translateY(-1px);
}

.num-speakers-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 13px;
  color: var(--muted);
}

.num-speakers-row select {
  background: var(--card-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
}

.progress-wrap {
  margin-top: 20px;
}

.progress-track {
  height: 8px;
  border-radius: 999px;
  background: var(--card-2);
  border: 1px solid var(--border);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-strong) 100%);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
}

#progress-percent {
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.status {
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
}

.status.error {
  color: var(--danger);
  border-color: rgba(217, 116, 103, 0.4);
  background: rgba(217, 116, 103, 0.08);
}

.status.loading {
  color: var(--accent);
}

.hidden {
  display: none !important;
}

.results {
  margin-top: 28px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.results h2 {
  font-size: 18px;
  margin: 0 0 16px;
}

.stems-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.stem-row {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
}

.stem-row .stem-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.stem-row .stem-name {
  font-weight: 700;
  text-transform: capitalize;
}

.stem-row a.stem-download {
  color: var(--accent);
  font-size: 13px;
  text-decoration: none;
}

.stem-row a.stem-download:hover {
  text-decoration: underline;
}

.stem-row audio {
  width: 100%;
}

.download-all {
  display: block;
  text-align: center;
  margin-top: 20px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.download-all:hover {
  background: rgba(var(--accent-rgb), 0.1);
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 32px;
}

footer a {
  color: var(--muted);
}

@media (max-width: 520px) {
  .model-choices {
    grid-template-columns: 1fr;
  }
}