/* ==========================================================================
   Tony Liao · 微观工坊 (The Micro Atelier) Section Stylesheet
   Design Language: Apple Cinematic / Liquid Glass / Bento Grid
   Integrated with: base.css, sections.css, apple-refinement.css
   ========================================================================== */

.atelier-section {
  max-width: 1220px;
  margin: 0 auto;
  padding: 96px 32px 80px;
  position: relative;
}

.atelier-copy {
  max-width: 860px;
  margin: 0 auto 40px;
  text-align: center;
}

.atelier-copy .section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--pill-surface);
  border: 1px solid var(--card-border);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 16px;
}

.atelier-copy .section-kicker::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.2);
  animation: atelier-pulse 2.2s infinite ease-in-out;
}

html[data-theme="dark"] .atelier-copy .section-kicker::before {
  background: #ffffff;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

@keyframes atelier-pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.3); }
}

.atelier-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(34px, 4.4vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.atelier-copy h2 .sub-en {
  display: block;
  font-size: 0.44em;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--muted);
  margin-top: 8px;
}

.atelier-copy p {
  max-width: 760px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.atelier-copy p .sub-en {
  display: block;
  font-size: 0.9em;
  color: var(--muted-2);
  margin-top: 6px;
}

/* ─── Hero Showcase Card (Liquid Glass Stage) ─── */
.atelier-hero-stage {
  position: relative;
  border-radius: var(--radius-lg, 24px);
  background: var(--card-surface);
  border: 1px solid var(--card-border);
  box-shadow: 0 16px 40px var(--card-shadow), var(--glass-inner-glow);
  -webkit-backdrop-filter: var(--glass-filter-md);
  backdrop-filter: var(--glass-filter-md);
  overflow: hidden;
  padding: 44px 40px;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

html[data-theme="dark"] .atelier-hero-stage {
  background: rgba(22, 22, 26, 0.72);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.45), inset 0 1px 1px rgba(255, 255, 255, 0.12);
}

/* Ambient glow accent behind hero stage */
.atelier-hero-stage::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 113, 227, 0.15) 0%, rgba(0, 113, 227, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

html[data-theme="dark"] .atelier-hero-stage::before {
  background: radial-gradient(circle, rgba(41, 151, 255, 0.22) 0%, rgba(41, 151, 255, 0) 72%);
}

.atelier-hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.atelier-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.atelier-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--pill-surface);
  border: 1px solid var(--card-border);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.atelier-chip-accent {
  background: var(--pill-surface-hover);
  border-color: var(--card-border);
  color: var(--ink);
}

.atelier-hero-title {
  margin: 0;
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
  line-height: 1.2;
}

.atelier-hero-desc {
  margin: 0;
  max-width: 820px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--muted);
}

.atelier-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 5px 12px;
  border-radius: 8px;
  background: var(--pill-surface);
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
}

.tech-tag:hover {
  background: var(--pill-surface-hover);
  color: var(--ink);
}

.atelier-hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.atelier-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.22s var(--ease);
}

.atelier-btn-primary {
  background: var(--ink);
  color: var(--surface);
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.atelier-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  opacity: 0.95;
}

html[data-theme="dark"] .atelier-btn-primary {
  background: #ffffff;
  color: #121214;
  box-shadow: 0 4px 18px rgba(255, 255, 255, 0.15);
}

html[data-theme="dark"] .atelier-btn-primary:hover {
  box-shadow: 0 8px 28px rgba(255, 255, 255, 0.25);
}

.atelier-btn-secondary {
  background: var(--pill-surface);
  color: var(--ink);
  border: 1px solid var(--card-border);
}

.atelier-btn-secondary:hover {
  background: var(--pill-surface-hover);
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

/* ─── Bento Grid (4 Pocket Worlds) ─── */
.atelier-worlds-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 820px) {
  .atelier-worlds-grid {
    grid-template-columns: 1fr;
  }
}

.atelier-world-card {
  position: relative;
  border-radius: var(--radius, 18px);
  background: var(--card-surface);
  border: 1px solid var(--card-border);
  box-shadow: 0 8px 24px var(--card-shadow), var(--glass-inner-glow);
  -webkit-backdrop-filter: var(--glass-filter-md);
  backdrop-filter: var(--glass-filter-md);
  padding: 30px 28px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
  overflow: hidden;
}

html[data-theme="dark"] .atelier-world-card {
  background: rgba(26, 28, 34, 0.65);
  border-color: rgba(255, 255, 255, 0.08);
}

.atelier-world-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
  box-shadow: 0 16px 36px var(--poster-shadow-hover);
}

/* Visual color ambient gradient inside each world card */
.atelier-world-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  pointer-events: none;
  opacity: 0.12;
  transition: opacity 0.3s ease;
}

.atelier-world-card:hover::before {
  opacity: 0.22;
}

.atelier-world-card[data-world="ocean"]::before {
  background: linear-gradient(180deg, #0284c7 0%, transparent 100%);
}

.atelier-world-card[data-world="railway"]::before {
  background: linear-gradient(180deg, #10b981 0%, transparent 100%);
}

.atelier-world-card[data-world="construction"]::before {
  background: linear-gradient(180deg, #f59e0b 0%, transparent 100%);
}

.atelier-world-card[data-world="racing"]::before {
  background: linear-gradient(180deg, #ef4444 0%, transparent 100%);
}

.world-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.world-number-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--pill-surface);
  border: 1px solid var(--card-border);
  padding: 3px 10px;
  border-radius: 999px;
}

.world-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--pill-surface);
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: transform 0.25s var(--ease);
}

.atelier-world-card:hover .world-icon-wrap {
  transform: scale(1.08) rotate(3deg);
}

.world-card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.world-card-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.world-card-title .sub-en {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

.world-card-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.world-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  position: relative;
  z-index: 1;
}

.world-card-tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-soft);
}

.world-card-action {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: transform 0.2s var(--ease);
}

.atelier-world-card:hover .world-card-action {
  transform: translateX(3px);
}

/* ─── Bottom Status Bar ─── */
.atelier-status-bar {
  margin-top: 24px;
  padding: 14px 24px;
  border-radius: var(--radius-sm, 12px);
  background: var(--pill-surface);
  border: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 16px;
}

.atelier-status-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.atelier-status-item strong {
  color: var(--ink);
  font-weight: 600;
}

@media (max-width: 680px) {
  .atelier-section {
    padding: 64px 20px 48px;
  }
  .atelier-hero-stage {
    padding: 28px 20px;
  }
  .atelier-status-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}