:root {
  --bg: #f7efe1;
  --bg-accent: #f0ddc0;
  --paper: rgba(255, 253, 248, 0.92);
  --paper-strong: #fffdf8;
  --ink: #20312c;
  --muted: #596b66;
  --line: rgba(32, 49, 44, 0.12);
  --brand: #d86c3f;
  --brand-dark: #a44823;
  --leaf: #5e8f67;
  --shadow: 0 18px 60px rgba(52, 41, 28, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 216, 115, 0.7), transparent 22%),
    radial-gradient(circle at top right, rgba(94, 143, 103, 0.16), transparent 26%),
    linear-gradient(180deg, #fdf7ec 0%, var(--bg) 50%, #efe2c6 100%);
  font-family: "Manrope", "Avenir Next", sans-serif;
}

button,
select {
  font: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.app-shell {
  width: min(1180px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.topbar,
.tabs,
.view,
.status-card,
.generate-panel,
.preview-panel,
.reader-meta,
.reader-card,
.audio-controls {
  backdrop-filter: blur(18px);
}

.topbar,
.tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar {
  margin-bottom: 18px;
}

.topbar h1,
.section-header h2,
.preview-header h3 {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--brand-dark);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
}

.tabs {
  gap: 12px;
  margin-bottom: 20px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  box-shadow: var(--shadow);
}

.tab,
.primary-button,
.ghost-button {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  transition: transform 140ms ease, background 140ms ease, color 140ms ease;
}

.tab {
  flex: 1;
  min-height: 52px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
}

.tab.is-active {
  background: linear-gradient(135deg, var(--brand), #f19f4d);
  color: white;
}

.primary-button,
.ghost-button {
  min-height: 48px;
  padding: 0 18px;
  font-weight: 700;
}

.primary-button {
  background: linear-gradient(135deg, var(--brand), #f19f4d);
  color: white;
  box-shadow: 0 14px 30px rgba(216, 108, 63, 0.28);
}

.primary-button:disabled,
.ghost-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  box-shadow: none;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  border: 1px solid var(--line);
}

.primary-button:hover,
.ghost-button:hover,
.tab:hover {
  transform: translateY(-1px);
}

.hidden,
.view {
  display: none;
}

.view.is-active {
  display: block;
}

.app-main {
  display: grid;
}

.section-header,
.preview-header,
.reader-controls,
.reader-actions,
.audio-controls,
.preview-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-header {
  margin-bottom: 18px;
}

.network-pill,
.progress-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  font-weight: 700;
}

.network-pill.is-offline {
  color: #8a3715;
  background: rgba(255, 226, 214, 0.8);
}

.deck-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.deck-card,
.preview-item,
.empty-state,
.status-card,
.generate-panel,
.preview-panel,
.reader-meta,
.reader-card,
.audio-controls {
  background: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.deck-card,
.preview-item {
  padding: 18px;
}

.deck-card {
  display: grid;
  gap: 14px;
}

.deck-card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.deck-card h3,
.preview-item h4,
.empty-state h3 {
  margin: 0;
  font-family: "Fraunces", Georgia, serif;
}

.muted,
.deck-meta,
.preview-item p,
.status-card p,
.label {
  color: var(--muted);
}

.deck-badges,
.preview-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(94, 143, 103, 0.14);
  color: #21462d;
  font-size: 0.88rem;
  font-weight: 700;
}

.empty-state {
  padding: 32px;
  text-align: center;
}

.generate-panel,
.preview-panel,
.reader-meta,
.reader-card,
.audio-controls {
  padding: 22px;
}

.generate-panel {
  display: grid;
  gap: 16px;
}

.generate-panel label {
  display: grid;
  gap: 8px;
}

.generate-panel select {
  min-height: 52px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: white;
  padding: 0 14px;
}

.preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

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

.preview-stage-rail {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 247, 236, 0.96), rgba(249, 238, 221, 0.92));
  border: 1px solid rgba(216, 108, 63, 0.16);
}

.preview-stage-step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: start;
}

.preview-stage-step + .preview-stage-step {
  position: relative;
}

.preview-stage-step + .preview-stage-step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: -14px;
  bottom: calc(100% - 2px);
  width: 2px;
  background: rgba(32, 49, 44, 0.12);
}

.preview-stage-marker {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-weight: 800;
  border: 1px solid rgba(32, 49, 44, 0.12);
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted);
}

.preview-stage-copy {
  padding-top: 2px;
}

.preview-stage-label,
.preview-stage-note {
  margin: 0;
}

.preview-stage-label {
  font-weight: 800;
  color: var(--ink);
}

.preview-stage-note {
  margin-top: 4px;
  font-size: 0.94rem;
  color: var(--muted);
}

.preview-stage-step.is-done .preview-stage-marker {
  background: rgba(94, 143, 103, 0.18);
  border-color: rgba(94, 143, 103, 0.42);
  color: #21462d;
}

.preview-stage-step.is-active .preview-stage-marker {
  background: linear-gradient(135deg, var(--brand), #f19f4d);
  border-color: transparent;
  color: white;
  box-shadow: 0 12px 24px rgba(216, 108, 63, 0.22);
}

.preview-stage-step.is-active .preview-stage-label {
  color: var(--brand-dark);
}

.preview-stage-step.is-upcoming {
  opacity: 0.72;
}

.preview-stage-step.is-failed .preview-stage-marker {
  background: rgba(201, 66, 54, 0.18);
  border-color: rgba(201, 66, 54, 0.3);
  color: #8a3715;
}

.preview-image {
  aspect-ratio: 9 / 16;
  object-fit: cover;
  border-radius: 20px;
  background: linear-gradient(180deg, #ecd6bb, #ddc09b);
}

.preview-actions-inline {
  display: flex;
  gap: 8px;
}

.preview-actions-inline button {
  flex: 1;
}

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

.reader-card {
  position: relative;
  min-height: min(72vh, 760px);
  perspective: 1400px;
  transform-style: preserve-3d;
  cursor: pointer;
}

.card-face {
  position: absolute;
  inset: 22px;
  display: grid;
  backface-visibility: hidden;
  border-radius: 28px;
  overflow: hidden;
  background: var(--paper-strong);
}

.card-front img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.word-ribbon {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  padding: 18px 20px;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(32, 49, 44, 0.82), rgba(32, 49, 44, 0.54));
  color: white;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.card-back {
  transform: rotateY(180deg);
  padding: 28px;
}

.reader-card.is-flipped .card-front {
  transform: rotateY(180deg);
}

.reader-card.is-flipped .card-back {
  transform: rotateY(360deg);
}

.card-copy {
  align-content: center;
  display: grid;
  gap: 10px;
  font-size: 1.06rem;
}

.copy-strong {
  font-size: clamp(1.22rem, 2.8vw, 2rem);
  font-weight: 800;
  color: var(--ink);
}

.reader-controls,
.audio-controls {
  margin-top: 18px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  min-width: 280px;
  max-width: calc(100vw - 32px);
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(32, 49, 44, 0.92);
  color: white;
  box-shadow: 0 22px 40px rgba(18, 22, 21, 0.24);
}

@media (max-width: 860px) {
  .app-shell {
    width: min(100vw - 16px, 100%);
    padding-top: 18px;
  }

  .topbar,
  .section-header,
  .preview-header,
  .reader-meta,
  .reader-controls,
  .audio-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .tabs {
    position: sticky;
    top: 10px;
    z-index: 10;
  }

  .reader-card {
    min-height: 68vh;
  }
}