:root {
  --bg: #f2ede2;
  --panel: rgba(255, 251, 245, 0.86);
  --panel-strong: #fffaf2;
  --line: rgba(53, 39, 20, 0.14);
  --text: #23180b;
  --muted: #6c5a45;
  --accent: #c25b2e;
  --accent-dark: #8f3d1d;
  --success: #1b6a43;
  --error: #8f1f27;
  --shadow: 0 24px 80px rgba(66, 39, 7, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(224, 175, 120, 0.35), transparent 34%),
    radial-gradient(circle at right center, rgba(194, 91, 46, 0.18), transparent 26%),
    linear-gradient(135deg, #efe4d2 0%, #f6f0e7 52%, #ece0cb 100%);
  font-family: "SF Pro Display", "PingFang SC", "Hiragino Sans GB", sans-serif;
  min-height: 100vh;
}

.page-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 28px;
  padding: 28px;
}

.sidebar,
.panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.sidebar {
  padding: 28px;
  position: sticky;
  top: 28px;
  height: fit-content;
}

.brand h1,
.panel-header h2 {
  margin: 8px 0 0;
  font-size: 2rem;
  line-height: 1.05;
}

.brand-copy,
.hint {
  color: var(--muted);
  line-height: 1.6;
}

.eyebrow {
  margin: 0;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.nav {
  display: grid;
  gap: 12px;
  margin: 28px 0;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.4);
}

.nav a.active {
  background: linear-gradient(135deg, #cf6f39 0%, #a94b22 100%);
  color: white;
}

.subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.subnav a {
  color: var(--text);
  text-decoration: none;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.subnav a.active {
  background: linear-gradient(135deg, #cf6f39 0%, #a94b22 100%);
  color: white;
}

.sidebar-card,
.group-card {
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.card-title,
.group-card h3 {
  margin: 0 0 8px;
}

.compact-card {
  display: grid;
  align-content: center;
}

.group-note,
.field-hint {
  margin: 8px 0 14px;
  color: var(--muted);
  line-height: 1.6;
}

.subsection {
  display: grid;
  gap: 14px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.subsection h4 {
  margin: 0;
  font-size: 1rem;
}

.mono {
  font-family: "SF Mono", "Menlo", monospace;
}

.content {
  display: grid;
  gap: 24px;
}

.panel {
  padding: 28px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
}

.notice {
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.notice.success {
  background: rgba(27, 106, 67, 0.1);
  color: var(--success);
}

.notice.error {
  background: rgba(143, 31, 39, 0.1);
  color: var(--error);
}

.form-grid {
  display: grid;
  gap: 18px;
}

.form-grid.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

label span {
  font-size: 0.92rem;
}

.api-field {
  align-content: start;
}

.field-key {
  display: block;
  color: var(--text);
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 0.9rem;
  line-height: 1.4;
}

.field-desc {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-top: 2px;
}

input,
textarea,
select,
button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  background: var(--panel-strong);
  color: var(--text);
  font: inherit;
}

textarea {
  resize: vertical;
}

button {
  width: auto;
  cursor: pointer;
  background: linear-gradient(135deg, #cf6f39 0%, #a84a23 100%);
  color: white;
  border: none;
  min-width: 180px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
}

.checkbox input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.api-checkbox {
  align-items: flex-start;
}

.checkbox-copy {
  display: grid;
  gap: 2px;
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-start;
}

.upload-form {
  display: flex;
  gap: 16px;
  align-items: center;
}

.upload-controls {
  display: grid;
  gap: 16px;
  grid-template-columns: 1.1fr 1.3fr auto;
  align-items: end;
}

.upload-controls.four-columns {
  grid-template-columns: 1fr 1fr 1.4fr auto;
}

.upload-controls.tab-upload {
  grid-template-columns: 0.9fr 1.6fr auto;
}

.validation-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.validation-block + .validation-block {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.validation-list {
  margin: 0;
  padding-left: 20px;
  color: var(--error);
}

.validation-ok {
  margin: 0;
  color: var(--success);
}

.validation-error {
  margin: 0;
  color: var(--error);
  line-height: 1.6;
  word-break: break-word;
}

.meta-list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
}

.meta-list div {
  display: grid;
  gap: 4px;
}

.meta-list dt {
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 0.82rem;
  color: var(--muted);
}

.meta-list dd {
  margin: 0;
  word-break: break-word;
}

@media (max-width: 1100px) {
  .page-shell,
  .form-grid.two-columns,
  .validation-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

.metadata-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.metadata-grid div {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.metadata-grid span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.summary-stats {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.stat-card {
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.stat-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.stat-card strong {
  display: block;
  font-size: 1rem;
}

.result-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.result-columns.single-column {
  grid-template-columns: 1fr;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.result-card {
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.result-card[data-status="running"] {
  border-color: rgba(194, 91, 46, 0.45);
}

.result-card[data-status="success"] {
  border-color: rgba(27, 106, 67, 0.38);
}

.result-card[data-status="error"] {
  border-color: rgba(143, 31, 39, 0.42);
}

.result-card h3 {
  margin: 6px 0 0;
}

.compare-card {
  align-content: start;
}

.alignment-list {
  display: grid;
  gap: 18px;
}

.alignment-row {
  padding: 18px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
}

.alignment-window {
  margin-bottom: 16px;
}

.alignment-cells {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.alignment-cell {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.alignment-cell.is-base {
  border-color: rgba(194, 91, 46, 0.42);
  background: rgba(255, 246, 236, 0.82);
}

.alignment-cell h4 {
  margin: 6px 0 0;
  font-size: 1rem;
}

.alignment-snippets {
  display: grid;
  gap: 10px;
}

.alignment-snippet {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.alignment-snippet.continued {
  opacity: 0.82;
  border-style: dashed;
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.mini-stats div {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.48);
}

.mini-stats span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.credential-card {
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.credential-value {
  display: block;
  margin-top: 10px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fffdf9;
  font-family: "SF Mono", "Menlo", monospace;
  font-size: 0.95rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.credential-note {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

pre {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.7;
  background: #fffdf9;
  border-radius: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  min-height: 240px;
}

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

.inline-actions {
  grid-column: auto;
  align-items: end;
}

.detail-block {
  margin-top: 18px;
}

.detail-block h4 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.detail-hint {
  margin-top: 16px;
}

.sentence-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.sentence-item,
.speaker-group {
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
}

.sentence-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.sentence-text {
  line-height: 1.7;
}

.timeline-track {
  position: relative;
  height: 8px;
  border-radius: 999px;
  background: rgba(194, 91, 46, 0.12);
  margin: 0 0 12px;
  overflow: hidden;
}

.timeline-segment {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #cf6f39 0%, #8f3d1d 100%);
}

.speaker-groups {
  display: grid;
  gap: 12px;
}

.speaker-group pre {
  min-height: 0;
  margin: 0;
}

@media (max-width: 960px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .panel-header,
  .upload-form {
    flex-direction: column;
    align-items: stretch;
  }

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

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

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

  .form-grid.two-columns,
  .compare-grid,
  .alignment-cells,
  .result-columns,
  .metadata-grid,
  .summary-stats,
  .credential-grid {
    grid-template-columns: 1fr;
  }
}