:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-2: #eef2f1;
  --ink: #15171a;
  --muted: #626a70;
  --line: #d9dedc;
  --accent: #0f7a5f;
  --accent-dark: #075842;
  --shadow: 0 18px 45px rgba(32, 39, 44, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family:
    "Nanum Gothic", "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 16px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: 34px;
  line-height: 1.05;
}

h2 {
  font-size: 20px;
  line-height: 1.2;
}

.status-strip,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 0 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

.badge {
  color: var(--accent-dark);
  background: #e7f2ee;
  border-color: #c9e0d8;
}

.badge.strong {
  justify-content: center;
  min-width: 46px;
  color: #ffffff;
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.workspace {
  display: grid;
  grid-template-columns: 300px minmax(520px, 1fr) 360px;
  gap: 16px;
  align-items: start;
}

.control-panel,
.script-panel,
.preview-panel > *,
.audit-panel,
.command-panel,
.build-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.control-panel,
.script-panel {
  padding: 18px;
}

.audit-panel,
.command-panel,
.build-panel {
  padding: 14px;
}

.field-group {
  margin-bottom: 18px;
}

.field-group label,
.command-panel label,
.build-panel label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.helper-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
  padding: 12px;
}

.helper-title {
  margin: 0 0 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.helper-copy {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.helper-copy + .helper-copy {
  margin-top: 8px;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
  padding: 4px;
}

.segment {
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.segment.active {
  color: #ffffff;
  background: var(--ink);
}

input[type="text"] {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 0 12px;
  color: var(--ink);
}

.action-stack {
  display: grid;
  gap: 10px;
}

.primary-action,
.secondary-action {
  width: 100%;
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  font-weight: 900;
}

.primary-action {
  color: #ffffff;
  background: var(--accent-dark);
}

.secondary-action {
  color: var(--ink);
  background: var(--surface-2);
}

.secondary-action.dark {
  color: #ffffff;
  background: var(--ink);
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.compact-heading {
  margin-bottom: 10px;
}

.section-copy {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.candidate-list {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.candidate-card {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
  padding: 12px;
  text-align: left;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    box-shadow 140ms ease;
}

.candidate-card:hover,
.candidate-card.active {
  border-color: #b8c9c2;
  box-shadow: 0 12px 28px rgba(32, 39, 44, 0.08);
  transform: translateY(-1px);
}

.candidate-card-top,
.candidate-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.candidate-rank,
.candidate-hook {
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.candidate-title {
  margin: 10px 0 6px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.25;
}

.candidate-angle {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.candidate-meta {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.timeline-block {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.timeline {
  display: grid;
  gap: 10px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
  padding: 12px;
  cursor: pointer;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    box-shadow 140ms ease;
}

.timeline-item:hover,
.timeline-item.active {
  border-color: #b8c9c2;
  box-shadow: 0 12px 28px rgba(32, 39, 44, 0.08);
  transform: translateY(-1px);
}

.timecode {
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 900;
}

.scene-title {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 900;
}

.line-en {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 900;
  line-height: 1.18;
}

.line-zh,
.shot-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.shot-note {
  margin-top: 8px;
}

.empty-card {
  display: grid;
  gap: 6px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #fbfcfc;
  padding: 16px;
}

.empty-card.compact {
  padding: 14px;
}

.empty-title {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  font-weight: 900;
}

.empty-copy {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.preview-panel {
  display: grid;
  gap: 12px;
}

.phone-preview {
  position: relative;
  height: 590px;
  overflow: hidden;
  background: #111417;
}

.phone-preview video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.caption-preview {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 82px;
  color: #ffffff;
  font-size: 22px;
  font-weight: 900;
  line-height: 1.16;
  text-align: center;
  text-shadow:
    0 3px 0 rgba(0, 0, 0, 0.92),
    0 8px 24px rgba(0, 0, 0, 0.5);
  -webkit-text-stroke: 2px rgba(0, 0, 0, 0.92);
  paint-order: stroke fill;
}

.audit-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.audit-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.audit-icon {
  color: var(--accent-dark);
  font-weight: 900;
}

.result-grid {
  display: grid;
  gap: 12px;
  margin: 0 0 12px;
}

.result-grid dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.result-grid dd {
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.45;
  word-break: break-word;
}

textarea {
  width: 100%;
  min-height: 84px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  color: var(--ink);
  background: #fbfcfc;
  font-family:
    "SFMono-Regular", "SF Mono", Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.45;
}

#activityLog {
  min-height: 160px;
}

.command-panel .secondary-action {
  margin-top: 10px;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

/* 加载状态 */
body.is-busy .primary-action,
body.is-busy .secondary-action {
  position: relative;
}

body.is-busy .primary-action::after,
body.is-busy .secondary-action::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

body.is-busy .secondary-action:not(.dark)::after {
  border-color: rgba(0,0,0,0.15);
  border-top-color: var(--ink);
}

@keyframes spin {
  to { transform: translateY(-50%) rotate(360deg); }
}

/* Toast 提示 */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  z-index: 1000;
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.error {
  background: #c0392b;
}

.toast.success {
  background: var(--accent-dark);
}

/* 状态标签增强 */
.status-strip {
  transition: all 0.2s ease;
}

body.is-busy .status-strip {
  border-color: var(--accent);
  background: #e7f2ee;
}

body.is-busy .status-dot {
  animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* 候选卡片选中状态增强 */
.candidate-card.active {
  border-color: var(--accent);
  background: #e7f2ee;
}

/* 错误状态 */
.error-banner {
  background: #fdf2f2;
  border: 1px solid #f5c6cb;
  color: #721c24;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 12px;
}

@media (max-width: 1240px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .phone-preview {
    height: min(72vh, 590px);
  }
}