:root {
  --bg: #07111f;
  --panel: rgba(11, 24, 41, 0.9);
  --text: #eff6ff;
  --muted: #9bb0cb;
  --accent: #22c55e;
  --accent-2: #38bdf8;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: rgba(155, 176, 203, 0.2);
  --border-strong: rgba(155, 176, 203, 0.32);
  --border-dashed: rgba(155, 176, 203, 0.18);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --focus-ring: 0 0 0 3px rgba(56, 189, 248, 0.22);

  /* Semantic status tints — info/warning advise, success/danger assert. */
  --info-tint: rgba(56, 189, 248, 0.14);
  --info-border: rgba(56, 189, 248, 0.26);
  --info-text: #dbeafe;
  --success-tint: rgba(34, 197, 94, 0.16);
  --success-border: rgba(34, 197, 94, 0.3);
  --success-text: #dcfce7;
  --warning-tint: rgba(245, 158, 11, 0.14);
  --warning-border: rgba(245, 158, 11, 0.3);
  --warning-text: #fde68a;
  --danger-tint: rgba(239, 68, 68, 0.16);
  --danger-border: rgba(239, 68, 68, 0.3);
  --danger-text: #fecaca;

  /* Radius scale */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --radius-xl: 18px;
  --radius-2xl: 20px;
  --radius-card: 22px;
  --radius-pill: 999px;

  /* Surface */
  --surface-inset: rgba(4, 12, 24, 0.42);
  --surface-deep: rgba(2, 6, 23, 0.72);
  --surface-raised: rgba(2, 6, 23, 0.62);

  /* Spacing scale — 4px baseline */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;

  /* Typography scale */
  --font-xs: 12px;
  --font-sm: 13px;
  --font-base: 14px;
  --font-md: 15px;
  --font-lg: 16px;
  --font-xl: 18px;
  --font-2xl: 22px;

  /* Font weights */
  --fw-regular: 400;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  /* Letter-spacing for eyebrow/uppercase labels */
  --tracking-label: 0.06em;
  --tracking-tight: 0.02em;

  /* Motion */
  --transition-fast: 0.16s ease;
  --transition-base: 0.2s ease;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0ea5e9, #22c55e);
  --gradient-file: linear-gradient(135deg, #0ea5e9, #2563eb);
  --gradient-progress: linear-gradient(90deg, #38bdf8, #22c55e);

  /* Focus rings per tone */
  --focus-ring-warning: 0 0 0 3px rgba(245, 158, 11, 0.32);
  --focus-ring-danger: 0 0 0 3px rgba(239, 68, 68, 0.32);
  --focus-ring-success: 0 0 0 3px rgba(34, 197, 94, 0.28);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(
      circle at top right,
      rgba(56, 189, 248, 0.18),
      transparent 34%
    ),
    radial-gradient(
      circle at top left,
      rgba(34, 197, 94, 0.12),
      transparent 26%
    ),
    linear-gradient(180deg, #020617, #07111f 45%, #0a1526);
  font-family:
    "Avenir Next", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: var(--font-md);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(155, 176, 203, 0.18);
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(155, 176, 203, 0.32);
  background-clip: padding-box;
}

::selection {
  background: rgba(56, 189, 248, 0.32);
  color: var(--text);
}

@supports (scrollbar-color: auto) {
  * {
    scrollbar-color: rgba(155, 176, 203, 0.18) transparent;
    scrollbar-width: thin;
  }
}

input,
textarea,
button,
a {
  -webkit-tap-highlight-color: transparent;
}

h1,
h2 {
  margin: 0;
}

.wrap {
  width: min(1240px, calc(100% - var(--space-6)));
  margin: var(--space-5) auto var(--space-6);
}

.history-toolbar {
  position: relative;
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-3);
}

.history-control {
  position: relative;
}

.step-card {
  display: grid;
  gap: var(--space-5);
  align-content: start;
  min-height: calc(100vh - var(--space-6));
}

.step-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}

.step-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid var(--info-border);
  background: var(--info-tint);
  color: var(--info-text);
  font-size: var(--font-sm);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.step-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-3);
}

.compact-actions {
  margin-top: var(--space-4);
}

.gallery-block {
  min-height: 280px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.history-popover {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  z-index: 20;
  width: min(560px, calc(100vw - var(--space-6)));
  max-height: min(72vh, 860px);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  overflow: auto;
  scrollbar-gutter: stable;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  background: rgba(7, 17, 31, 0.98);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.history-popover-head {
  position: sticky;
  top: calc(-1 * var(--space-4));
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin: calc(-1 * var(--space-4)) calc(-1 * var(--space-4)) 0;
  padding: var(--space-4);
  border-bottom: 1px solid rgba(155, 176, 203, 0.12);
  background: linear-gradient(
    180deg,
    rgba(7, 17, 31, 1),
    rgba(7, 17, 31, 0.96)
  );
}

.history-popover-title {
  font-size: var(--font-md);
  font-weight: var(--fw-extrabold);
}

h1 {
  margin: var(--space-3) 0 var(--space-2);
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.1;
  max-width: 820px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: var(--font-2xl);
  letter-spacing: -0.005em;
}

h3 {
  font-size: var(--font-xl);
  margin: 0;
}

.lead,
.gallery-meta,
.muted,
.message {
  color: var(--muted);
  line-height: 1.6;
}

.lead {
  max-width: 900px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.action-row {
  align-items: stretch;
}

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

.text-input {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-inset);
  color: var(--text);
  font: inherit;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background var(--transition-fast);
}

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

.text-input:hover:not(:disabled):not(:focus-visible) {
  border-color: var(--border-strong);
}

.text-input:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: rgba(56, 189, 248, 0.45);
}

.text-input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: rgba(4, 12, 24, 0.24);
}

.btn,
.file-btn,
.download-link {
  border: 0;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-base);
  font-weight: var(--fw-bold);
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    filter var(--transition-fast),
    box-shadow var(--transition-fast);
}

.btn:hover:not(:disabled),
.file-btn:hover:not(:disabled),
.download-link:hover:not(.is-disabled) {
  transform: translateY(-1px);
}

.btn:active:not(:disabled),
.file-btn:active:not(:disabled),
.download-link:active:not(.is-disabled) {
  transform: translateY(0);
}

.btn:focus-visible,
.file-btn:focus-visible,
.download-link:focus-visible,
.frame:focus-visible,
textarea:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.btn:disabled,
.download-link.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  pointer-events: none;
}

.file-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-file);
  color: white;
}

.file-btn:hover {
  filter: brightness(1.08);
}

.video-url-input {
  flex: 1 1 340px;
}

.source-label {
  flex: 0 1 auto;
  min-width: 0;
}

.source-hint {
  width: 100%;
  margin-top: var(--space-3);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(155, 176, 203, 0.12);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(155, 176, 203, 0.18);
  border-color: rgba(155, 176, 203, 0.3);
}

.btn-danger {
  background: var(--danger-tint);
  color: var(--danger-text);
  border: 1px solid var(--danger-border);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.24);
  border-color: rgba(239, 68, 68, 0.42);
}

.btn-warning {
  background: var(--warning-tint);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
}

.btn-warning:hover:not(:disabled) {
  background: rgba(245, 158, 11, 0.22);
  border-color: rgba(245, 158, 11, 0.42);
}

.download-link {
  background: var(--success-tint);
  color: var(--success-text);
  border: 1px solid var(--success-border);
}

.download-link:hover:not(.is-disabled) {
  background: rgba(34, 197, 94, 0.24);
  border-color: rgba(34, 197, 94, 0.42);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.stat {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-inset);
}

.stat-k {
  margin-bottom: var(--space-1);
  font-size: var(--font-xs);
  color: var(--muted);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.stat-v {
  font-size: var(--font-xl);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-tight);
}

.progress-wrap {
  margin-top: var(--space-4);
}

.progress-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  color: var(--muted);
  font-size: var(--font-sm);
  font-variant-numeric: tabular-nums;
}

.progress {
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: rgba(155, 176, 203, 0.1);
}

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

.message {
  min-height: 22px;
  margin-top: var(--space-3);
  font-size: var(--font-base);
  line-height: 1.5;
}

.message:empty {
  margin-top: 0;
  min-height: 0;
}

.message.error,
.message.success,
.message.warning {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid;
  border-left-width: 3px;
  border-radius: var(--radius-md);
  min-height: 0;
}

.message.error::before,
.message.success::before,
.message.warning::before {
  flex: none;
  font-weight: var(--fw-regular);
  line-height: 1.5;
}

.message.error {
  background: var(--danger-tint);
  border-color: var(--danger-border);
  color: var(--danger-text);
}

.message.error::before {
  content: "✕";
}

.message.success {
  background: var(--success-tint);
  border-color: var(--success-border);
  color: var(--success-text);
}

.message.success::before {
  content: "✓";
}

.message.warning {
  background: var(--warning-tint);
  border-color: var(--warning-border);
  color: var(--warning-text);
}

.message.warning::before {
  content: "⚠";
}

.status-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.subtitle-settings,
.bgm-settings {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  margin-top: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-inset);
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-base);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"]:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xs);
}

.bgm-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.bgm-title {
  font-weight: var(--fw-semibold);
  font-size: var(--font-base);
}

.bgm-filename {
  font-size: var(--font-sm);
  color: var(--muted);
  word-break: break-all;
}

.bgm-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.bgm-volume-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.bgm-volume-label {
  font-size: var(--font-sm);
  color: var(--muted);
}

.bgm-volume-row input[type="range"] {
  flex: 1;
  min-width: 180px;
}

.bgm-volume-value {
  font-variant-numeric: tabular-nums;
  min-width: 40px;
  text-align: right;
  font-size: var(--font-sm);
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(155, 176, 203, 0.1);
  color: var(--text);
  font-size: var(--font-sm);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
}

.status-pill.is-info,
.status-pill.is-active {
  border-color: var(--info-border);
  background: var(--info-tint);
  color: var(--info-text);
}

.status-pill.is-success {
  border-color: var(--success-border);
  background: var(--success-tint);
  color: var(--success-text);
}

.status-pill.is-error {
  border-color: var(--danger-border);
  background: var(--danger-tint);
  color: var(--danger-text);
}

.status-pill.is-warning {
  border-color: var(--warning-border);
  background: var(--warning-tint);
  color: var(--warning-text);
}

.download-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.hint {
  position: relative;
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4) var(--space-3)
    calc(var(--space-4) + 18px);
  border: 1px solid var(--info-border);
  border-left-width: 3px;
  border-radius: var(--radius-md);
  background: var(--info-tint);
  color: var(--info-text);
  font-size: var(--font-sm);
  line-height: 1.6;
}

.hint::before {
  content: "ℹ";
  position: absolute;
  top: var(--space-3);
  left: var(--space-4);
  font-weight: var(--fw-extrabold);
  line-height: 1.6;
}

.hint:empty {
  display: none;
}

.hint-warning {
  border-color: var(--warning-border);
  background: var(--warning-tint);
  color: var(--warning-text);
}

.hint-warning::before {
  content: "⚠";
}

.hint-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.processor-toggle {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.processor-toggle-option {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-inset);
  cursor: pointer;
  overflow: hidden;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
}

.processor-toggle-option:hover {
  border-color: var(--border-strong);
}

.processor-toggle-option input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.processor-toggle-option span {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  text-align: center;
  font-size: var(--font-base);
  font-weight: var(--fw-bold);
}

.processor-toggle-option:has(input:checked) {
  border-color: rgba(56, 189, 248, 0.45);
  background: rgba(14, 165, 233, 0.18);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.22);
}

.processor-toggle-option:has(input:focus-visible) {
  box-shadow: var(--focus-ring);
}

.processor-toggle-option:has(input:disabled) {
  opacity: 0.55;
  cursor: not-allowed;
}

.processor-toggle-meta {
  display: block;
  margin-top: 2px;
  font-size: var(--font-xs);
  font-weight: var(--fw-regular);
  color: var(--muted);
}

.speaker-source-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-inset);
}

.speaker-source-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.speaker-source-title {
  margin: 0;
  font-size: var(--font-lg);
  font-weight: var(--fw-bold);
}

.speaker-source-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: var(--font-sm);
}

.gallery-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-3);
}

.collage-stage-head,
.results-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.collage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.panel-block {
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-inset);
}

.panel-title {
  margin-bottom: var(--space-3);
  font-size: var(--font-lg);
  font-weight: var(--fw-extrabold);
}

.field-label {
  display: block;
  margin: var(--space-3) 0 var(--space-2);
  font-size: var(--font-xs);
  color: var(--muted);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  font-weight: var(--fw-bold);
}

textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  color: var(--text);
  background: var(--surface-deep);
  font: inherit;
  line-height: 1.6;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

textarea:hover:not(:disabled):not(:focus-visible):not([readonly]) {
  border-color: var(--border-strong);
}

textarea:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.collage-preview {
  display: block;
  width: 100%;
  margin-bottom: var(--space-3);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.84);
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.status-list {
  display: grid;
  gap: var(--space-3);
}

.history-list {
  display: grid;
  gap: var(--space-3);
}

.history-list-more {
  width: 100%;
  justify-content: center;
}

.history-item {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-raised);
  overflow: hidden;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.history-item:has(button.history-item-surface:hover) {
  border-color: var(--border-strong);
}

.history-item.is-current {
  border-color: rgba(34, 197, 94, 0.38);
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.14);
}

.history-item-surface {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  align-items: flex-start;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-3);
  color: inherit;
  text-align: left;
  background: transparent;
  border: 0;
}

button.history-item-surface {
  cursor: pointer;
  transition: background var(--transition-fast);
}

button.history-item-surface:hover {
  background: rgba(56, 189, 248, 0.08);
}

button.history-item-surface:focus-visible {
  outline: none;
  background: rgba(56, 189, 248, 0.08);
  box-shadow: inset 0 0 0 2px rgba(56, 189, 248, 0.45);
}

.history-thumb {
  display: block;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  object-fit: cover;
  background: rgba(2, 6, 23, 0.84);
}

.history-thumb.is-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: var(--font-xs);
  text-align: center;
  padding: var(--space-2);
}

.history-copy {
  min-width: 0;
  display: grid;
  gap: var(--space-1);
}

.history-title {
  font-size: var(--font-base);
  font-weight: var(--fw-extrabold);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.history-meta {
  color: var(--muted);
  font-size: var(--font-xs);
  line-height: 1.45;
}

.history-markers {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-1);
}

.history-delete-btn {
  position: absolute;
  right: var(--space-3);
  bottom: var(--space-3);
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-pill);
  background: var(--danger-tint);
  color: var(--danger-text);
  cursor: pointer;
  font-size: 0;
  line-height: 0;
  flex: 0 0 auto;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

.history-delete-btn:hover {
  background: rgba(239, 68, 68, 0.26);
  border-color: rgba(239, 68, 68, 0.42);
  transform: scale(1.08);
}

.history-delete-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring-danger);
}

.history-delete-btn::before,
.history-delete-btn::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 1.8px;
  margin-left: -6px;
  margin-top: -0.9px;
  border-radius: var(--radius-pill);
  background: currentColor;
}

.history-delete-btn::before {
  transform: rotate(45deg);
}

.history-delete-btn::after {
  transform: rotate(-45deg);
}

.history-status,
.history-current-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--font-xs);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-tight);
  white-space: nowrap;
}

.history-status {
  background: var(--info-tint);
  color: var(--info-text);
  border: 1px solid var(--info-border);
}

.history-status.is-success {
  background: var(--success-tint);
  color: var(--success-text);
  border-color: var(--success-border);
}

.history-status.is-error {
  background: var(--danger-tint);
  color: var(--danger-text);
  border-color: var(--danger-border);
}

.history-current-label {
  color: var(--text);
  border: 1px solid var(--border);
  background: rgba(155, 176, 203, 0.16);
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.reference-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(2, 6, 23, 0.5);
  transition: border-color var(--transition-fast);
}

.reference-card:hover {
  border-color: var(--border-strong);
}

.reference-card-badge {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 1;
  padding: 4px var(--space-2);
  border: 1px solid rgba(56, 189, 248, 0.32);
  border-radius: var(--radius-pill);
  background: rgba(2, 6, 23, 0.82);
  color: var(--text);
  font-size: var(--font-xs);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-tight);
}

.reference-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: black;
}

.reference-card-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3);
}

.reference-card-copy {
  min-width: 0;
}

.reference-card-title {
  font-size: var(--font-sm);
  font-weight: var(--fw-extrabold);
  word-break: break-word;
}

.reference-card-meta {
  margin-top: var(--space-1);
  color: var(--muted);
  font-size: var(--font-xs);
}

.reference-card-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.reference-order-btn,
.reference-remove-btn {
  flex: 0 0 auto;
  padding: 6px var(--space-3);
  font-size: var(--font-sm);
}

.status-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(2, 6, 23, 0.5);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.status-item:hover {
  border-color: var(--border-strong);
}

.status-item.is-current {
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.16);
}

.status-item-copy {
  min-width: 0;
}

.status-item-title {
  font-size: var(--font-md);
  font-weight: var(--fw-extrabold);
  overflow-wrap: anywhere;
}

.status-item-meta {
  margin-top: var(--space-1);
  color: var(--muted);
  font-size: var(--font-sm);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}

.result-card {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-inset);
  transition: border-color var(--transition-fast);
}

.result-card:hover {
  border-color: var(--border-strong);
}

.touchup-card {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-inset);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.touchup-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  transform: translateY(-1px);
}

.touchup-card:focus-visible {
  outline: none;
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: var(--focus-ring);
}

.touchup-card.is-current {
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.16);
}

.result-card-head {
  font-size: var(--font-md);
  font-weight: var(--fw-extrabold);
  overflow-wrap: anywhere;
}

.touchup-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.touchup-card-title {
  font-size: var(--font-md);
  font-weight: var(--fw-extrabold);
  overflow-wrap: anywhere;
}

.touchup-card-meta {
  margin-top: var(--space-1);
  color: var(--muted);
  font-size: var(--font-sm);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.touchup-card-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--space-3);
}

.result-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.result-image img,
.result-image video {
  display: block;
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  aspect-ratio: 9 / 16;
  object-fit: cover;
  background: black;
}

.result-image video {
  object-fit: contain;
}

.result-caption {
  margin-bottom: var(--space-2);
  color: var(--muted);
  font-size: var(--font-xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.animation-final-preview {
  display: block;
  width: 100%;
  max-width: 420px;
  margin: var(--space-3) auto 0;
  aspect-ratio: 9 / 16;
  object-fit: contain;
  background: black;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.empty {
  padding: var(--space-6) var(--space-5);
  border: 1px dashed var(--border-dashed);
  border-radius: var(--radius-xl);
  text-align: center;
  color: var(--muted);
  background: rgba(4, 12, 24, 0.2);
  font-size: var(--font-base);
  line-height: 1.6;
}

.selected-scenes-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  align-items: start;
  gap: var(--space-3);
  margin-top: var(--space-4);
  overflow-anchor: none;
}

.selected-scenes-list > .empty {
  grid-column: 1 / -1;
}

.selected-scene-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface-inset);
  padding: var(--space-4);
  transition: border-color var(--transition-fast);
}

.selected-scene-card:hover {
  border-color: var(--border-strong);
}

.selected-scene-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.selected-scene-title {
  font-size: var(--font-md);
  font-weight: var(--fw-extrabold);
  overflow-wrap: anywhere;
}

.selected-scene-meta {
  margin-top: var(--space-1);
  color: var(--muted);
  font-size: var(--font-sm);
}

.selected-scene-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: min(100%, 252px);
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.selected-scene-thumb img {
  display: block;
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  aspect-ratio: 9 / 16;
  object-fit: cover;
  background: black;
}

.frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: rgba(4, 12, 24, 0.44);
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.frame:hover:not(.disabled) {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.45);
}

.frame.selected {
  border-color: rgba(34, 197, 94, 0.82);
  box-shadow: 0 0 0 2px rgba(34, 197, 94, 0.22);
}

.frame.selected:hover:not(.disabled) {
  border-color: rgba(34, 197, 94, 0.92);
  filter: brightness(1.05);
}

.frame.pending-start {
  border-color: rgba(14, 165, 233, 0.82);
  box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
}

.frame.valid-end {
  border-color: rgba(250, 204, 21, 0.55);
}

.frame.invalid {
  opacity: 0.5;
}

.frame.is-range-start::after,
.frame.is-range-end::after,
.frame.is-range-middle::after {
  content: "";
  position: absolute;
  left: var(--space-2);
  top: var(--space-2);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 0 0 4px rgba(2, 6, 23, 0.32);
}

.frame.is-range-start::after {
  background: #38bdf8;
}

.frame.is-range-end::after {
  background: #f59e0b;
}

.frame.is-range-middle::after {
  background: #c084fc;
}

.frame.disabled {
  cursor: default;
  opacity: 0.72;
}

.frame img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  background: black;
  transition: transform var(--transition-base);
}

.frame:hover img {
  transform: scale(1.03);
}

.frame-body {
  padding: var(--space-3);
}

.frame-title {
  margin-bottom: var(--space-2);
  font-size: var(--font-base);
  font-weight: var(--fw-extrabold);
  overflow-wrap: anywhere;
}

.frame-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.timestamp {
  color: var(--muted);
  font-size: var(--font-sm);
  font-variant-numeric: tabular-nums;
}

.frame-badge {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  padding: 4px var(--space-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: rgba(2, 6, 23, 0.82);
  color: var(--text);
  font-size: var(--font-xs);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-tight);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.frame.selected .frame-badge {
  border-color: rgba(134, 239, 172, 0.36);
  background: rgba(22, 163, 74, 0.92);
}

.frame.pending-start .frame-badge {
  border-color: rgba(125, 211, 252, 0.36);
  background: rgba(2, 132, 199, 0.92);
}

.frame.valid-end .frame-badge {
  border-color: rgba(253, 224, 71, 0.32);
  background: rgba(161, 98, 7, 0.9);
}

.frame.invalid .frame-badge {
  background: rgba(51, 65, 85, 0.88);
}

#video,
#canvas {
  position: fixed;
  left: -99999px;
  top: -99999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.plan-segment-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.plan-segment-card {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: rgba(2, 6, 23, 0.48);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    opacity var(--transition-fast);
}

.plan-segment-card.is-talking-head {
  border-color: rgba(14, 165, 233, 0.38);
  background: linear-gradient(
    180deg,
    var(--info-tint),
    rgba(2, 6, 23, 0.56)
  );
}

.plan-segment-card.is-broll {
  border-color: rgba(245, 158, 11, 0.38);
  background: linear-gradient(
    180deg,
    var(--warning-tint),
    rgba(2, 6, 23, 0.56)
  );
}

.plan-segment-card.is-talking-head:hover:not(.is-dragging):not(.is-drop-target) {
  border-color: rgba(14, 165, 233, 0.56);
}

.plan-segment-card.is-broll:hover:not(.is-dragging):not(.is-drop-target) {
  border-color: rgba(245, 158, 11, 0.56);
}

.plan-segment-card.is-dragging {
  opacity: 0.6;
}

.plan-segment-card.is-drop-target {
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.3);
  border-color: rgba(56, 189, 248, 0.55);
}

.plan-segment-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.plan-segment-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.plan-segment-title {
  font-size: var(--font-md);
  font-weight: var(--fw-extrabold);
}

.plan-segment-grip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-inset);
  color: var(--muted);
  cursor: grab;
  user-select: none;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.plan-segment-grip:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.35);
  color: var(--text);
}

.plan-segment-grip:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: rgba(56, 189, 248, 0.45);
  color: var(--text);
}

.plan-segment-grip:active {
  cursor: grabbing;
}

.plan-segment-type {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px var(--space-2);
  border-radius: var(--radius-pill);
  font-size: var(--font-xs);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-tight);
  background: rgba(155, 176, 203, 0.14);
  color: var(--text);
}

.plan-segment-card.is-talking-head .plan-segment-type {
  background: rgba(14, 165, 233, 0.22);
  color: var(--info-text);
}

.plan-segment-card.is-broll .plan-segment-type {
  background: rgba(245, 158, 11, 0.22);
  color: var(--warning-text);
}

.plan-segment-meta {
  margin-top: var(--space-1);
  color: var(--muted);
  font-size: var(--font-sm);
  font-variant-numeric: tabular-nums;
}

.plan-segment-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-2);
}

.plan-segment-split-btn {
  padding: 4px var(--space-2);
  font-size: var(--font-xs);
  font-weight: var(--fw-bold);
}

.plan-segment-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.plan-field {
  display: block;
}

.plan-select {
  width: 100%;
}

.plan-readonly {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-inset);
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.duration-stepper {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 40px;
  gap: var(--space-2);
  align-items: stretch;
}

.duration-stepper-input {
  width: 100%;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.duration-stepper-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(155, 176, 203, 0.12);
  color: var(--text);
  font-size: 1.2rem;
  font-weight: var(--fw-bold);
  line-height: 1;
  cursor: pointer;
  user-select: none;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.duration-stepper-btn:hover:not(:disabled) {
  background: rgba(155, 176, 203, 0.18);
  border-color: rgba(155, 176, 203, 0.3);
}

.duration-stepper-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: rgba(56, 189, 248, 0.45);
}

.duration-stepper-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.plan-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

#planSaveMessage,
#planSaveMessage.success {
  margin-top: 0;
  padding: 0;
  border: 0;
  background: transparent;
  min-height: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-sm);
  line-height: 1.6;
  flex: 0 0 auto;
}

#planSaveMessage:empty {
  margin-top: 0;
  min-height: 0;
}

#planSaveMessage.success {
  color: var(--success-text);
}

.plan-transcript-block {
  margin-top: var(--space-4);
}

.plan-transcript-text {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-inset);
  color: var(--text);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.plan-broll-fields,
.plan-avatar-fields {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.plan-broll-fields textarea,
.plan-avatar-fields textarea {
  min-height: 96px;
}

.workflow-summary {
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-inset);
}

.workflow-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.workflow-header .workflow-summary {
  margin-top: 0;
  align-self: stretch;
}

.workflow-summary-label {
  margin-bottom: var(--space-1);
  font-size: var(--font-xs);
  font-weight: var(--fw-extrabold);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--muted);
}

@media (min-width: 1440px) {
  .wrap {
    width: min(1320px, calc(100% - var(--space-6)));
  }
}

@media (max-width: 980px) {
  .plan-segment-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .collage-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .wrap {
    margin: var(--space-2) auto var(--space-3);
  }

  .step-card {
    min-height: auto;
  }

  .plan-segment-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(100% - var(--space-4), 1240px);
  }

  .history-popover {
    width: min(100vw - var(--space-4), 560px);
  }

  .history-popover-head {
    flex-direction: column;
    align-items: stretch;
  }

  .card {
    padding: var(--space-4);
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .action-row > .btn,
  .action-row > .file-btn,
  .action-row > .text-input {
    flex: 1 1 100%;
  }

  .step-actions > .btn,
  .step-actions > .file-btn,
  .step-actions > .download-link {
    flex: 1 1 100%;
  }

  .frame-row,
  .progress-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .download-list {
    flex-direction: column;
    align-items: stretch;
  }

  .status-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .history-item-surface {
    grid-template-columns: 56px minmax(0, 1fr);
    align-items: flex-start;
  }

  .history-item {
    min-height: 80px;
  }

  .history-thumb {
    width: 56px;
    height: 56px;
  }

  .history-markers {
    grid-column: 2;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
  }

  .result-images {
    gap: var(--space-2);
  }

  h1 {
    font-size: clamp(24px, 6vw, 32px);
  }
}

/* ---------- Inline video generation (inside plan cards) ---------- */

.plan-video-gen-section {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

.plan-video-gen-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.plan-video-gen-head > button[data-action="generate-video"] {
  margin-left: auto;
}

.plan-video-gen-head .field-label {
  margin: 0;
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  min-height: 36px;
  font-size: var(--font-sm);
  border-radius: var(--radius-sm);
}

.video-gen-preview {
  margin-top: var(--space-2);
  display: grid;
  gap: var(--space-2);
}

.video-gen-preview video {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  height: auto;
  min-height: 180px;
  max-height: 300px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: #000;
  object-fit: contain;
}

.video-gen-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
  flex-wrap: wrap;
}

.video-gen-duration-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-sm);
  cursor: pointer;
  color: var(--muted);
}

.video-gen-duration-fixed {
  font-size: var(--font-sm);
  color: var(--text);
}

.video-gen-duration-toggle input:checked + span,
.video-gen-duration-toggle:has(input:checked) {
  color: var(--text);
}

.video-gen-history-select {
  max-width: 220px;
  font-size: var(--font-sm);
}

.video-gen-cost {
  font-size: var(--font-sm);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.video-gen-hint {
  font-size: var(--font-sm);
  color: var(--warning-text);
}

.video-gen-upload-label {
  cursor: pointer;
  margin: 0;
}

.video-gen-upload-label.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
  pointer-events: none;
}

.video-gen-upload-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.video-gen-uploaded-pill {
  border-color: var(--success-border);
  background: var(--success-tint);
  color: var(--success-text);
}

/* ---------- Login & error pages ---------- */

.login-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: var(--space-4);
}

.login-card {
  width: min(100%, 460px);
  display: grid;
  gap: var(--space-3);
}

.login-card h1 {
  margin: var(--space-2) 0 0;
  font-size: clamp(24px, 2.6vw, 30px);
}

.login-card .lead {
  margin: 0;
  font-size: var(--font-base);
}

.login-card code {
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  background: var(--surface-inset);
  border: 1px solid var(--border);
  font-size: 0.92em;
}

.login-form {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.login-input {
  font-size: var(--font-lg);
  padding: var(--space-4) var(--space-5);
}

.login-submit {
  margin-top: var(--space-2);
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-lg);
}

.login-card .message.error {
  margin: 0;
}

.error-card .step-actions {
  justify-content: flex-start;
}

/* ---------- Form controls (select, range, readonly textarea) ---------- */

textarea[readonly] {
  background: rgba(2, 6, 23, 0.55);
  color: var(--muted);
  cursor: default;
}

.plan-select,
select.text-input {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 36px;
  background-color: var(--surface-inset);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='none' stroke='%239bb0cb' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round' d='M1 1.5l5 5 5-5'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px 8px;
  cursor: pointer;
}

.plan-select:focus-visible,
select.text-input:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: rgba(56, 189, 248, 0.45);
}

input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  height: 20px;
  background: transparent;
  cursor: pointer;
}

input[type="range"]:focus-visible {
  outline: none;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--surface-inset);
  border: 1px solid var(--border);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--surface-inset);
  border: 1px solid var(--border);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: 2px solid rgba(2, 6, 23, 0.85);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.25);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: 2px solid rgba(2, 6, 23, 0.85);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.25);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

input[type="range"]:hover::-webkit-slider-thumb,
input[type="range"]:focus-visible::-webkit-slider-thumb {
  transform: scale(1.08);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.28);
}

input[type="range"]:hover::-moz-range-thumb,
input[type="range"]:focus-visible::-moz-range-thumb {
  transform: scale(1.08);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.28);
}

/* ---------- Per-tone focus rings ---------- */

.btn-danger:focus-visible {
  box-shadow: var(--focus-ring-danger);
}

.btn-warning:focus-visible {
  box-shadow: var(--focus-ring-warning);
}

.download-link:focus-visible {
  box-shadow: var(--focus-ring-success);
}

/* ---------- Section divider ---------- */

.section-divider {
  border-top: 1px solid var(--border);
  margin-top: var(--space-5);
}

/* ---------- Active/processing pulse ---------- */

.status-pill.is-active::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.22);
  animation: pulse 1.4s ease-in-out infinite;
}

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

/* ---------- Dialog ---------- */

.dialog {
  width: min(440px, calc(100vw - var(--space-6)));
  max-height: calc(100vh - var(--space-6));
  margin: auto;
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.dialog::backdrop {
  background: rgba(2, 6, 23, 0.66);
  backdrop-filter: blur(4px);
}

.dialog-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.dialog-title {
  margin: 0;
  font-size: var(--font-xl);
  font-weight: var(--fw-extrabold);
  line-height: 1.3;
}

.dialog-message {
  margin: 0;
  color: var(--muted);
  font-size: var(--font-base);
  line-height: 1.55;
  white-space: pre-wrap;
}

.dialog-field {
  margin-bottom: var(--space-4);
}

.dialog-input {
  width: 100%;
  min-height: 44px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-inset);
  color: var(--text);
  font: inherit;
  resize: vertical;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

textarea.dialog-input {
  min-height: 96px;
}

.dialog-input:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: rgba(56, 189, 248, 0.45);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.dialog.is-tone-danger .dialog-title {
  color: var(--danger-text);
}

/* ---------- Button loading spinner ---------- */

.btn.is-loading,
.file-btn.is-loading,
.download-link.is-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn.is-loading::after,
.file-btn.is-loading::after,
.download-link.is-loading::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 1em;
  height: 1em;
  border: 2px solid rgba(255, 255, 255, 0.75);
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-rotate 0.9s linear infinite;
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .btn:hover,
  .file-btn:hover,
  .download-link:hover,
  .touchup-card:hover,
  .frame:hover,
  .history-delete-btn:hover {
    transform: none;
  }
}

/* ---------- Montage desk (Animation Redraw timeline editor) ---------- */

.editor-panel {
  margin-top: var(--space-5);
}

.editor-panel .panel-block-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.editor-panel .panel-block-head h3 {
  margin: 0;
  font-size: var(--font-xl);
  font-weight: var(--fw-semibold);
}

.editor-panel .panel-block-hint {
  margin: 0;
  color: var(--muted);
  font-size: var(--font-sm);
}

.editor-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  padding: var(--space-5);
  background: var(--surface-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
}

@media (min-width: 960px) {
  .editor-stage {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    align-items: start;
  }
}

.editor-preview {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.editor-preview-video {
  width: 100%;
  max-height: 520px;
  background: #000;
  border-radius: var(--radius-lg);
  display: block;
}

/* Hide the native time readout and scrubber — they ignore our trim window
 * and would contradict the duration shown under the timeline. Seeking still
 * works via clicks on our own .timeline-track. Chromium/Safari only;
 * Firefox keeps the default UI. */
.editor-preview-video::-webkit-media-controls-current-time-display,
.editor-preview-video::-webkit-media-controls-time-remaining-display,
.editor-preview-video::-webkit-media-controls-timeline,
.editor-preview-video::-webkit-media-controls-timeline-container {
  display: none;
}

.editor-preview-caption {
  color: var(--muted);
  font-size: var(--font-sm);
}

.editor-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
}

.timeline-clip {
  position: relative;
  padding: var(--space-3);
  background: var(--surface-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.timeline-clip.is-focused {
  border-color: var(--accent-2);
  box-shadow: var(--focus-ring);
}

.timeline-label {
  color: var(--muted);
  font-size: var(--font-xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.timeline-track {
  position: relative;
  height: 64px;
  background: #0b1422;
  border-radius: var(--radius-sm);
  overflow: hidden;
  user-select: none;
  touch-action: none;
  cursor: pointer;
}

.filmstrip-mount {
  position: absolute;
  inset: 0;
}

.filmstrip {
  display: flex;
  width: 100%;
  height: 100%;
}

.filmstrip-frame {
  flex: 1 1 0;
  min-width: 0;
  background-size: cover;
  background-position: center;
  background-color: #0b1422;
  border-right: 1px solid rgba(0, 0, 0, 0.3);
}

.filmstrip-frame:last-child {
  border-right: none;
}

.timeline-overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  background: rgba(2, 6, 23, 0.68);
  pointer-events: none;
  transition: width var(--transition-fast);
}

.timeline-overlay-left {
  left: 0;
}

.timeline-overlay-right {
  right: 0;
}

.timeline-selection {
  position: absolute;
  top: 0;
  bottom: 0;
  border-top: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  pointer-events: none;
}

.trim-handle {
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 14px;
  padding: 0;
  margin: 0;
  transform: translateX(-50%);
  background: var(--accent);
  border: 2px solid #0b1422;
  border-radius: var(--radius-xs);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  cursor: ew-resize;
  touch-action: none;
  z-index: 3;
}

.trim-handle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 18px;
  transform: translate(-50%, -50%);
  background: rgba(11, 20, 34, 0.7);
  border-radius: 1px;
}

.trim-handle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring-success);
}

.timeline-playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent-2);
  pointer-events: none;
  z-index: 2;
  transform: translateX(-1px);
  box-shadow: 0 0 6px rgba(56, 189, 248, 0.6);
}

.timeline-info {
  margin-top: var(--space-2);
  color: var(--muted);
  font-size: var(--font-xs);
  font-variant-numeric: tabular-nums;
}

.segment-trim-editor {
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: var(--surface-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.segment-trim-editor[hidden] {
  display: none;
}

.segment-trim-editor-video {
  width: 100%;
  max-height: 240px;
  background: #0b1422;
  border-radius: var(--radius-sm);
}

/* Hide the native time readout and scrubber — they ignore our trim window
 * and would contradict the duration shown under the timeline. Seeking still
 * works via clicks on our own .timeline-track. Chromium/Safari only;
 * Firefox keeps the default UI. */
.segment-trim-editor-video::-webkit-media-controls-current-time-display,
.segment-trim-editor-video::-webkit-media-controls-time-remaining-display,
.segment-trim-editor-video::-webkit-media-controls-timeline,
.segment-trim-editor-video::-webkit-media-controls-timeline-container {
  display: none;
}

.segment-trim-editor-timeline {
  min-width: 0;
}

[data-action="toggle-trim-editor"].is-active {
  background: var(--accent-2-tint, rgba(56, 189, 248, 0.18));
  border-color: var(--accent-2);
}

.video-gen-trim-pill {
  background: rgba(56, 189, 248, 0.16);
  color: var(--accent-2, #38bdf8);
  border-color: rgba(56, 189, 248, 0.4);
  font-variant-numeric: tabular-nums;
}