:root {
  --bg: #f9f8f6;
  --bg-2: #fcfbf9;
  --card: #ffffff;
  --card-2: #f9f7f4;
  --line: #e3dfda;
  --line-strong: #d5d0ca;
  --ink: #2d2d2a;
  --ink-soft: #7a756e;
  --mint: #f0ede8;
  --accent: #d1a25c;
  --accent-soft: #e8d1a4;
  --shadow:
    0 18px 48px rgba(122, 117, 110, 0.08),
    0 2px 6px rgba(122, 117, 110, 0.05);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans TC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 1), transparent 35%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.25) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.2;
}

.app-shell {
  width: min(1160px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 36px 0 56px;
}

.hero {
  margin-bottom: 22px;
}

.hook-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.hook-card {
  padding: 18px 18px 20px;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.7) 0%, rgba(255, 255, 255, 0.4) 100%);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 
    0 8px 32px rgba(122, 117, 110, 0.06),
    inset 0 1px 1px rgba(255, 255, 255, 1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.hook-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 14px 40px rgba(122, 117, 110, 0.12);
  border-color: var(--accent-soft);
}

.hook-kicker {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.hook-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.08rem;
}

.hook-card p {
  margin: 10px 0 0;
  color: var(--ink-soft);
  line-height: 1.7;
}

.eyebrow,
.section-tag,
.mono-label,
.chip,
.sync-badge,
.metric span,
summary,
.panel-caption {
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.eyebrow,
.panel-caption,
.mono-label,
.section-tag {
  color: var(--ink-soft);
}

.eyebrow {
  margin: 0;
  font-size: 0.82rem;
}

.hero h1 {
  margin: 12px 0 14px;
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-copy {
  max-width: 760px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
  line-height: 1.8;
}

.layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
  align-items: start;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.section-tag {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--card-2);
  border: 1px solid var(--line);
  font-size: 0.72rem;
}

.panel-title-block {
  margin-top: 16px;
}

.panel-title-block h2 {
  margin: 0;
  font-size: 1.7rem;
}

.panel-caption {
  margin: 8px 0 0;
  font-size: 0.78rem;
  line-height: 1.7;
}

.upload-zone,
.status-box,
.privacy-note,
.empty-state,
.details-box,
.story-preview,
.result-card,
.metric {
  margin-top: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #fcfefb 0%, #f5f9f3 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.upload-zone {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border-radius: 24px;
  cursor: pointer;
}

.upload-zone input {
  display: none;
}

.upload-title {
  font-size: 1.08rem;
  font-weight: 800;
}

.upload-subtitle,
.privacy-note,
.empty-state,
.status-box,
.relationship-model,
.driver-text {
  color: var(--ink-soft);
}

.identity-picker {
  margin-top: 18px;
  padding: 20px;
  border-radius: 24px;
  background: var(--card-2);
  border: 1px solid var(--line-strong);
  text-align: center;
  animation: slideDown 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.picker-label {
  margin: 0 0 14px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.speaker-buttons {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.speaker-btn {
  background: white;
  border: 1px solid var(--line-strong);
  padding: 10px 20px;
  border-radius: 99px;
  font-weight: 700;
  transition: all 0.2s ease;
}

.speaker-btn:hover {
  background: var(--mint);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.speaker-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.demo-picker {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 180px;
}

.demo-picker select {
  appearance: none;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: 14px 16px;
  font: inherit;
  color: var(--ink);
  background:
    linear-gradient(180deg, #fcfefb 0%, #f4f8f1 100%);
}

button {
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: 14px 18px;
  font: inherit;
  cursor: pointer;
  transition:
    transform 180ms ease,
    opacity 180ms ease,
    box-shadow 180ms ease;
}

button:hover {
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.primary-button {
  background: linear-gradient(180deg, #f2e4ca 0%, #e8d1a4 100%);
  color: #5d4721;
  font-weight: 700;
}

.ghost-button {
  background: #f7faf5;
  color: var(--ink);
}

.status-box,
.privacy-note,
.empty-state,
.details-box {
  padding: 16px 18px;
  border-radius: 20px;
  line-height: 1.72;
}

.loading-card {
  min-height: 280px;
  display: grid;
  place-items: center;
  text-align: center;
}

.spinner {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
  border-radius: 999px;
  background:
    radial-gradient(circle, var(--accent-soft) 0%, rgba(232, 209, 164, 0.2) 50%, transparent 65%),
    #ffffff;
  border: 1px solid var(--accent-soft);
  box-shadow: 0 0 0 12px rgba(232, 209, 164, 0.15);
  animation: pulse 1.4s ease-in-out infinite alternate;
}

.result-card {
  position: relative;
  overflow: hidden;
  padding: 22px;
  border-radius: 28px;
}

.result-card::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(202, 214, 198, 0.9);
  border-radius: 20px;
  pointer-events: none;
}

.result-topline,
.insight-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.chip,
.sync-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-2);
  font-size: 0.74rem;
}

.sync-badge {
  color: #73511d;
  font-weight: 700;
}

.headline-block {
  margin-top: 18px;
  text-align: center;
}

.headline-block h3 {
  margin: 12px 0 10px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
}

.relationship-model {
  margin: 0;
  font-size: 1.02rem;
}

.verdict {
  margin: 22px 0;
  padding: 20px;
  border-radius: 24px;
  background: var(--bg);
  border: 1px solid var(--line);
  line-height: 1.85;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 16px;
  border-radius: 18px;
}

.metric span {
  display: block;
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.metric small {
  display: block;
  margin-top: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #97a08f;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 1.28rem;
}

.insight-row {
  margin-top: 18px;
  align-items: start;
}

.insight-stack {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 14px;
}

.driver-text {
  margin: 8px 0 0;
  line-height: 1.7;
}

.story-preview {
  width: min(100%, 360px);
  display: block;
  border-radius: 28px;
}

.story-preview-primary {
  margin-left: auto;
  margin-right: auto;
}

pre {
  margin: 12px 0 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  line-height: 1.72;
  color: #394035;
}

summary {
  cursor: pointer;
  font-size: 0.78rem;
}

.hidden {
  display: none !important;
}

@keyframes pulse {
  from {
    transform: scale(0.96);
    opacity: 0.82;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@media (max-width: 920px) {
  .hook-row,
  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100vw - 20px, 100%);
    padding-top: 24px;
  }

  .panel {
    padding: 18px;
    border-radius: 24px;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  .hook-row {
    display: block;
    margin-top: 18px;
    padding-bottom: 28px;
  }

  .hook-card {
    position: sticky;
    margin-bottom: 12px;
  }

  .hook-card:nth-child(1) {
    top: 12px;
    z-index: 1;
  }

  .hook-card:nth-child(2) {
    top: 28px;
    z-index: 2;
  }

  .hook-card:nth-child(3) {
    top: 44px;
    z-index: 3;
  }

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

  .result-topline,
  .insight-row,
  .actions {
    flex-direction: column;
    align-items: stretch;
  }
}

/* Personality Mix Pills (V2) */
.personality-mix-pills {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 0 auto 12px;
  flex-wrap: wrap;
  max-width: 280px;
}

.mix-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03);
  background: white;
}

.mix-pill .percent {
  font-family: "Space Grotesk", sans-serif;
  margin-right: 4px;
}

/* Modal & Guide Styling */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(45, 45, 42, 0.4);
  backdrop-filter: blur(8px);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  background: var(--bg-2);
  width: 100%;
  max-width: 440px;
  border-radius: 32px;
  padding: 32px;
  position: relative;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
  border: 1px solid white;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-header h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--ink);
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0;
}

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.step-num {
  background: var(--accent-soft);
  color: var(--accent);
  width: 32px;
  height: 32px;
  border-radius: 99px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  flex-shrink: 0;
}

.step-text strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.step-text p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.4;
}

.modal-footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}

.secondary-button {
  background: white;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 700;
}

.secondary-button:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-2);
}

/* GitHub Star CTA Styling */
.star-cta {
  margin-top: 32px;
  padding: 24px;
  background: var(--bg-2);
  border: 1px dashed var(--accent-soft);
  border-radius: 20px;
  text-align: center;
  transition: all 0.3s ease;
}

.star-cta:hover {
  border-style: solid;
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(123, 191, 158, 0.1);
}

.star-cta p {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.star-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: white;
  padding: 10px 20px;
  border-radius: 99px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(123, 191, 158, 0.3);
}

.star-link:hover {
  background: #62a386;
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(123, 191, 158, 0.4);
}

.star-icon {
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.5));
  animation: star-pulse 2s infinite ease-in-out;
}

@keyframes star-pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.8; }
  100% { transform: scale(1); opacity: 1; }
}

/* Footer Styling */
.app-footer {
  margin-top: 60px;
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
}

.app-footer p {
  margin-bottom: 8px;
  opacity: 0.8;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.footer-links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  text-decoration: underline;
  opacity: 0.8;
}

/* V3.3 Test Suite Styling */
.test-suite {
  margin-top: 24px;
  padding: 16px;
  border: 1px dashed var(--line-strong);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.4);
}

.test-case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 8px;
}

.test-case-grid .speaker-btn {
  padding: 8px 12px;
  font-size: 0.72rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}