/* ChatGPT Image 2 Studio — visual system */

:root {
  --surface-0: #03040a;
  --surface-1: rgba(8, 12, 24, 0.65);
  --surface-2: rgba(14, 20, 40, 0.78);
  --surface-elevated: rgba(18, 26, 50, 0.92);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --text: #f0f4ff;
  --muted: #8b9cc4;
  --muted-2: #5c6b8a;
  --primary: #a78bfa;
  --primary-deep: #7c3aed;
  --primary-2: #22d3ee;
  --accent: #f472b6;
  --accent-warm: #fb923c;
  --success: #4ade80;
  --danger: #f87171;
  --doubao: #64748b;
  --studio-glow: rgba(124, 58, 237, 0.45);
  --cyan-glow: rgba(34, 211, 238, 0.35);
  --radius-lg: 20px;
  --radius-xl: 26px;
  --radius-pill: 999px;
  --shadow-soft: 0 20px 60px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 100px rgba(124, 58, 237, 0.15);
  --header-h: 68px;
  --font-ui: 'DM Sans', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; color-scheme: dark; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  font-size: 16px;
  color: var(--text);
  background: var(--surface-0);
  background-image:
    radial-gradient(ellipse 100% 70% at 50% -15%, rgba(124, 58, 237, 0.28), transparent 50%),
    radial-gradient(ellipse 60% 45% at 95% 30%, rgba(34, 211, 238, 0.1), transparent 40%),
    radial-gradient(ellipse 50% 35% at 5% 70%, rgba(244, 114, 182, 0.08), transparent 45%),
    linear-gradient(180deg, #050818 0%, var(--surface-0) 50%, #020308 100%);
  overflow-x: hidden;
  line-height: 1.55;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.45), transparent 75%);
  pointer-events: none;
  z-index: 0;
}

.page-wrap {
  position: relative;
  z-index: 1;
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 32px) 64px;
}

.hidden { display: none !important; }

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

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid rgba(167, 139, 250, 0.25);
  color: #c4b5fd;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  min-height: var(--header-h);
  margin: 0 -4px;
  padding: 12px 4px 16px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(3,4,10,0.95), rgba(3,4,10,0.75));
  backdrop-filter: blur(20px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 0.82rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-deep) 0%, #0891b2 100%);
  color: #fff;
  box-shadow: 0 6px 28px var(--studio-glow);
}

.brand-text { font-size: 1.02rem; }

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px 20px;
  flex: 1 1 auto;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
  border-bottom-color: var(--primary-2);
}

.header-actions, .hero-actions, .generator-actions, .result-actions, .modal-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
}

/* —— Layout —— */
.main-flow {
  display: flex;
  flex-direction: column;
  gap: clamp(56px, 8vw, 110px);
  padding-top: clamp(24px, 4vw, 44px);
}

.section { width: 100%; margin: 0; }

.section-heading { margin-bottom: clamp(22px, 3vw, 36px); max-width: 760px; }

.section-heading h2,
.studio-copy h2,
.result-header h3,
.modal-header h2 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 700;
  font-size: clamp(1.7rem, 2.4vw + 0.5rem, 2.6rem);
  color: var(--text);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary-2);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.history-lead {
  margin: 12px 0 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* —— Hero —— */
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
  min-height: min(calc(100vh - var(--header-h) - 32px), 780px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 7px 14px 7px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(34, 211, 238, 0.3);
  background: rgba(34, 211, 238, 0.08);
  color: #67e8f9;
  font-size: 0.82rem;
  font-weight: 600;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
  animation: pulse-dot 2s ease-in-out infinite;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw + 0.8rem, 3.6rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.035em;
  color: var(--text);
  max-width: 13ch;
}

.headline-accent {
  background: linear-gradient(120deg, #c4b5fd 0%, #67e8f9 50%, #f9a8d4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text {
  margin: 18px 0 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.hero-text strong { color: #c7d2fe; }

/* Power metrics */
.power-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
  max-width: 480px;
}

.power-metric {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface-1);
  backdrop-filter: blur(10px);
}

.power-metric-value {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #fff, #a5f3fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.power-metric-unit {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary-2);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.power-metric-label {
  margin-top: 6px;
  font-size: 0.72rem;
  color: var(--muted-2);
}

.hero-actions { margin-top: 26px; }

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.trust-row span {
  padding: 7px 13px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--muted);
  font-size: 0.8rem;
}

/* Hero visual */
.hero-visual {
  position: relative;
  min-height: 440px;
  display: grid;
  place-items: center;
}

.compare-mini-card {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 16px;
  border: 1px solid var(--border-strong);
  background: var(--surface-elevated);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-soft);
  width: min(100%, 340px);
}

.compare-mini-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.compare-mini-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.compare-mini-doubao .compare-mini-label { color: var(--doubao); }
.compare-mini-studio .compare-mini-label { color: var(--primary-2); }

.compare-mini-value {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

.compare-mini-spec {
  font-size: 0.72rem;
  font-family: var(--font-mono);
}

.compare-mini-spec.muted { color: var(--muted-2); }
.compare-mini-spec.accent { color: #67e8f9; font-weight: 600; }

.compare-mini-vs {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--accent);
  padding: 4px 8px;
  border-radius: 8px;
  background: rgba(244, 114, 182, 0.12);
}

.orbital-card {
  width: min(100%, 460px);
  margin-top: 52px;
  padding: 14px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-strong);
  background: linear-gradient(165deg, var(--surface-2), rgba(4, 6, 14, 0.95));
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow-soft), var(--shadow-glow);
}

.preview-toolbar {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 12px;
  color: var(--muted-2);
}

.preview-toolbar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
}

.preview-toolbar strong {
  margin-left: 4px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.preview-badge {
  margin-left: auto;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #86efac;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.3);
}

.preview-art {
  position: relative;
  height: min(340px, 50vw);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(circle at 55% 28%, rgba(251, 113, 133, 0.4), transparent 42%),
    radial-gradient(circle at 15% 15%, rgba(34, 211, 238, 0.25), transparent 32%),
    linear-gradient(155deg, rgba(55, 18, 85, 0.95), rgba(6, 8, 18, 0.98));
}

.resolution-scale {
  position: absolute;
  top: 14px;
  left: 14px;
  right: 14px;
  z-index: 2;
}

.scale-bar {
  display: flex;
  height: 4px;
  border-radius: var(--radius-pill);
  overflow: hidden;
  background: rgba(255,255,255,0.08);
}

.scale-bar span {
  flex: 1;
  position: relative;
  font-size: 0;
}

.scale-1k { background: rgba(255,255,255,0.12); }
.scale-2k { background: rgba(167,139,250,0.35); }
.scale-4k.active {
  background: linear-gradient(90deg, var(--primary-deep), var(--primary-2));
  box-shadow: 0 0 12px var(--cyan-glow);
}

.scale-bar::after {
  content: '';
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  display: flex;
}

.resolution-scale::after {
  content: '1K        2K        4K ←';
  display: block;
  margin-top: 6px;
  font-size: 0.62rem;
  font-family: var(--font-mono);
  color: var(--muted-2);
  letter-spacing: 0.05em;
}

.art-sun {
  position: absolute;
  top: 44px;
  right: 48px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.95) 0%, rgba(253,224,71,0.5) 30%, rgba(251,113,133,0.2) 55%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

.art-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.2;
}

.art-card {
  position: absolute;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: flex-end;
  padding: 10px;
}

.art-card.one {
  width: 150px;
  height: 195px;
  left: 28px;
  bottom: 32px;
  background: linear-gradient(180deg, rgba(255,255,255,0.18), rgba(12,16,32,0.92));
}

.art-card.two {
  width: 120px;
  height: 135px;
  right: 36px;
  bottom: 48px;
  background: linear-gradient(180deg, rgba(34,211,238,0.3), rgba(8,12,24,0.9));
}

.art-card-label {
  font-size: 0.62rem;
  font-family: var(--font-mono);
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.art-scanline {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0,0,0,0.03) 3px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
}

.prompt-chip {
  position: absolute;
  left: 16px;
  bottom: 16px;
  right: 16px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(6, 8, 18, 0.82);
  backdrop-filter: blur(16px);
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.45;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.chip-tag {
  flex-shrink: 0;
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  background: rgba(124,58,237,0.3);
  color: #c4b5fd;
}

.floating-pill {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--surface-elevated);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: var(--shadow-soft);
  animation: float 9s ease-in-out infinite;
}

.pill-icon { color: var(--primary-2); font-size: 0.7rem; }
.pill-one { top: 72px; right: 2%; }
.pill-two { left: 0; top: 46%; animation-delay: -1.5s; }
.pill-three { right: 4%; bottom: 8%; animation-delay: -3s; color: #67e8f9; }

/* —— Power section —— */
.power-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.power-card {
  padding: clamp(18px, 2vw, 24px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--surface-2);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.power-card:hover {
  border-color: rgba(167, 139, 250, 0.4);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(124, 58, 237, 0.12);
}

.power-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.power-card-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  font-size: 0.72rem;
  font-weight: 800;
  background: linear-gradient(135deg, rgba(124,58,237,0.35), rgba(34,211,238,0.2));
  border: 1px solid rgba(167,139,250,0.3);
  color: #e9d5ff;
}

.power-card-api {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--muted-2);
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border);
  padding: 3px 7px;
  border-radius: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 58%;
}

.power-card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
}

.power-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
  flex: 1;
}

.power-card-list {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 5px;
}

.power-card-list li {
  font-size: 0.8rem;
  color: var(--muted-2);
  padding-left: 14px;
  position: relative;
}

.power-card-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary-2);
  font-size: 0.72rem;
}

/* —— Compare section —— */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.pillar-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-1);
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-deep), var(--primary-2));
  opacity: 0.6;
}

.pillar-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 800;
  background: rgba(124,58,237,0.2);
  color: #c4b5fd;
  margin-bottom: 10px;
}

.pillar-tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  font-size: 0.68rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--primary-2);
  background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.25);
}

.pillar-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
}

.pillar-card p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.6;
}

.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-1);
  margin-bottom: 24px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.compare-table th,
.compare-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.compare-table thead th {
  background: rgba(0,0,0,0.25);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td { border-bottom: none; }

.compare-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.compare-table th[scope="row"] {
  font-weight: 600;
  color: var(--text);
  width: 22%;
}

.th-doubao { color: var(--doubao); }
.th-studio { color: var(--primary-2); }

.cell-doubao { color: var(--muted-2); }
.cell-studio { color: var(--text); }
.cell-studio strong { color: #a5f3fc; }

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.scenario-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, var(--surface-2), rgba(6,8,16,0.8));
}

.scenario-who {
  margin: 0 0 6px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-2);
}

.scenario-need {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.scenario-why {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.55;
}

/* —— Studio —— */
.studio-intro {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: clamp(18px, 2.5vw, 26px);
}

.studio-copy { max-width: 640px; }
.studio-copy p { margin: 10px 0 0; color: var(--muted); }

.studio-spec-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.spec-badge {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: var(--surface-1);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  font-family: var(--font-mono);
}

.spec-badge:first-child { color: #c4b5fd; border-color: rgba(167,139,250,0.3); }

.doubao-notice {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 20px;
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(251, 146, 60, 0.35);
  background: rgba(251, 146, 60, 0.08);
}

.doubao-notice-body strong { color: #fdba74; }
.doubao-notice-body p { margin: 6px 0 0; color: var(--muted); font-size: 0.9rem; }
.doubao-notice-link { color: #fdba74; font-size: 0.85rem; }
.doubao-notice-dismiss {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font-size: 1.2rem;
  cursor: pointer;
  line-height: 1;
}

.studio-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: clamp(16px, 2.5vw, 26px);
  align-items: start;
}

.studio-panel,
.result-panel,
.feature-card {
  border: 1px solid var(--border);
  background: var(--surface-2);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius-xl);
  padding: clamp(20px, 2.5vw, 28px);
}

.generator { display: grid; gap: 13px; }

.mode-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  border: 0;
}

.mode-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-1);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.mode-option:has(input:checked) {
  border-color: rgba(167, 139, 250, 0.55);
  background: rgba(124, 58, 237, 0.15);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.1);
}

.mode-option input { display: none; }

.mode-icon {
  font-size: 1.1rem;
  color: var(--primary-2);
  width: 28px;
  text-align: center;
}

.mode-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.mode-text strong { font-size: 0.9rem; }
.mode-text small {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--muted-2);
}

.ref-image-row { display: grid; gap: 10px; }

.ref-image-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.ref-image-controls input[type='file'] {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.ref-image-preview-wrap {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  max-height: 200px;
  background: rgba(0,0,0,0.35);
}

.ref-image-preview {
  width: 100%;
  max-height: 200px;
  object-fit: contain;
  display: block;
}

.select-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.select-group { display: grid; gap: 6px; }

.generator label,
.settings-form label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 600;
}

.field-link {
  color: var(--primary-2);
  font-size: 0.82rem;
  text-decoration: none;
  font-weight: 500;
}

.field-link:hover { text-decoration: underline; }

.generator textarea,
.settings-form input,
.size-select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 13px 15px;
  outline: none;
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.size-select {
  cursor: pointer;
  appearance: auto;
  color-scheme: dark;
  background-color: rgba(6, 8, 18, 0.9);
}

.size-select option { background: #12162a; color: var(--text); }

.size-select:focus,
.generator textarea:focus,
.settings-form input:focus {
  border-color: rgba(167, 139, 250, 0.55);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.18);
}

.generator textarea {
  resize: vertical;
  min-height: 150px;
  line-height: 1.55;
}

.style-tags { display: flex; flex-wrap: wrap; gap: 7px; }

.style-tags button,
.secondary-button,
.ghost-button,
.primary-button,
.icon-button {
  border: 0;
  cursor: pointer;
  font: inherit;
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s;
}

.style-tags button {
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  color: var(--text);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 500;
}

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

.primary-button,
.secondary-button,
.ghost-button,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  padding: 11px 17px;
  text-decoration: none;
  font-weight: 600;
}

.primary-button {
  color: #fff;
  background: linear-gradient(135deg, var(--primary-deep) 0%, #0e7490 100%);
  box-shadow: 0 10px 32px var(--studio-glow);
}

.primary-button-lg {
  padding: 14px 24px;
  font-size: 1rem;
  flex: 1;
  min-width: 140px;
}

.secondary-button,
.ghost-button,
.icon-button {
  color: var(--text);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
}

.primary-button.small { padding: 9px 15px; font-size: 0.88rem; }
.secondary-button.small-inline { padding: 8px 13px; border-radius: 11px; font-size: 0.84rem; }
.secondary-button.disabled { pointer-events: none; opacity: 0.4; }

.hint, .prompt-meta { margin: 0; font-size: 0.84rem; color: var(--muted-2); }

.prompt-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
}

.prompt-meta.warning { color: #fcd34d; }

.secret-field { display: flex; gap: 10px; align-items: center; }
.secret-field input { flex: 1; }

/* Result panel */
.result-panel {
  position: sticky;
  top: calc(var(--header-h) + 10px);
  align-self: start;
}

.result-header, .modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.status-dot {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: 8px;
  background: var(--success);
  box-shadow: 0 0 12px rgba(74, 222, 128, 0.55);
}

.result-stage {
  position: relative;
  min-height: min(440px, 54vh);
  margin-top: 14px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(0,0,0,0.25));
  border: 1px solid var(--border);
}

.empty-state, .loading-state, .error-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 28px;
}

.empty-icon {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  margin-bottom: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(34,211,238,0.12));
  border: 1px solid rgba(167,139,250,0.3);
  box-shadow: inset 0 0 30px rgba(255,255,255,0.04);
}

.empty-icon-inner {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, #c4b5fd, #67e8f9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.empty-title {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.empty-desc {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
}

.loader-ring {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(255,255,255,0.08);
  border-top-color: var(--primary-2);
  border-right-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin-bottom: 14px;
}

.progress-track {
  width: min(220px, 80%);
  height: 5px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.08);
  overflow: hidden;
  margin-top: 12px;
}

.progress-track span {
  display: block;
  height: 100%;
  width: 40%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary-deep), var(--primary-2), var(--accent));
  animation: progress 2s ease-in-out infinite;
}

.generated-image {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: contain;
  display: block;
  cursor: zoom-in;
  background: radial-gradient(circle at 50% 40%, rgba(30,40,70,0.5), rgba(3,4,10,0.95));
  transition: opacity 0.2s;
}

.generated-image:hover { opacity: 0.92; }

.result-overlay {
  position: absolute;
  top: 12px;
  right: 12px;
  left: 12px;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  pointer-events: none;
}

.result-overlay-badge {
  display: inline-block;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  color: #86efac;
  background: rgba(6, 8, 18, 0.82);
  border: 1px solid rgba(74, 222, 128, 0.4);
  backdrop-filter: blur(8px);
}

.result-zoom-hint {
  margin-left: auto;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(6, 8, 18, 0.82);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(8px);
  pointer-events: auto;
  cursor: zoom-in;
  transition: background 0.2s, border-color 0.2s;
}

.result-zoom-hint:hover {
  background: rgba(124, 58, 237, 0.35);
  border-color: rgba(167, 139, 250, 0.45);
}

.error-state {
  color: var(--danger);
  font-weight: 600;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.86rem;
  line-height: 1.55;
}

.request-meta {
  margin: 10px 0 0;
  color: var(--muted-2);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  word-break: break-all;
}

/* History */
.history-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.history-empty {
  grid-column: 1 / -1;
  color: var(--muted);
  padding: 32px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-1);
}

.history-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-1);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}

.history-card:hover {
  border-color: rgba(167,139,250,0.35);
  transform: translateY(-3px);
}

.history-card img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
}

.history-thumb {
  cursor: zoom-in;
  transition: opacity 0.2s, transform 0.2s;
}

.history-thumb:hover {
  opacity: 0.88;
  transform: scale(1.02);
}

.history-card div {
  padding: 13px 15px 15px;
  display: grid;
  gap: 7px;
  flex: 1;
}

.history-card p {
  margin: 0;
  color: var(--text);
  line-height: 1.5;
  font-size: 0.88rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.history-card span { color: var(--muted-2); font-size: 0.76rem; }

.history-badge {
  display: inline-block;
  margin-right: 5px;
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--primary-2);
  border: 1px solid rgba(34,211,238,0.3);
  background: rgba(34,211,238,0.1);
  vertical-align: middle;
}

.history-card button {
  justify-self: start;
  margin-top: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 7px 13px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.history-card button:hover { background: rgba(255,255,255,0.1); }

/* Footer */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: 26px;
  border-top: 1px solid var(--border);
  color: var(--muted-2);
  font-size: 0.86rem;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(2, 4, 12, 0.82);
  backdrop-filter: blur(16px);
  z-index: 50;
}

.modal-card {
  width: min(520px, 100%);
  max-height: min(92vh, 720px);
  overflow-y: auto;
  border-radius: var(--radius-xl);
  padding: clamp(20px, 3vw, 26px);
  border: 1px solid var(--border-strong);
  background: var(--surface-elevated);
  box-shadow: var(--shadow-soft);
}

.settings-subtitle {
  margin: 8px 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.icon-button {
  width: 40px;
  height: 40px;
  padding: 0;
  font-size: 1.3rem;
  line-height: 1;
  border-radius: 11px;
}

.settings-form { display: grid; gap: 10px; margin-top: 14px; }
.settings-form input[readonly] { opacity: 0.75; cursor: not-allowed; }
.settings-note { margin: 6px 0 0; font-size: 0.84rem; color: var(--muted); }

/* Lightbox */
.lightbox-backdrop {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  place-items: center;
  padding: clamp(16px, 4vw, 40px);
  background: rgba(2, 4, 10, 0.92);
  backdrop-filter: blur(20px);
  cursor: zoom-out;
}

.lightbox-figure {
  margin: 0;
  max-width: min(96vw, 1400px);
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  cursor: default;
}

.lightbox-image {
  max-width: 100%;
  max-height: min(86vh, calc(100vh - 120px));
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  border: 1px solid var(--border-strong);
  background: #0a0c14;
}

.lightbox-caption {
  margin: 0;
  max-width: min(96vw, 720px);
  text-align: center;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  color: var(--muted);
  line-height: 1.5;
  word-break: break-all;
}

.lightbox-close {
  position: fixed;
  top: clamp(12px, 3vw, 24px);
  right: clamp(12px, 3vw, 24px);
  z-index: 71;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--surface-elevated);
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.2s, transform 0.2s;
}

.lightbox-close:hover {
  background: rgba(124, 58, 237, 0.35);
  transform: scale(1.05);
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  background: var(--surface-elevated);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-soft);
  z-index: 60;
  font-size: 0.88rem;
  font-weight: 500;
  max-width: min(92vw, 400px);
  text-align: center;
}

/* Ambient */
.ambient {
  position: fixed;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

.ambient-one { width: 300px; height: 300px; top: 60px; left: -120px; background: rgba(124,58,237,0.2); }
.ambient-two { width: 260px; height: 260px; right: -60px; top: 38%; background: rgba(34,211,238,0.1); }
.ambient-three { width: 380px; height: 380px; left: 28%; bottom: -140px; background: rgba(244,114,182,0.07); }

/* Motion */
.reveal { animation: rise 0.8s cubic-bezier(0.22, 1, 0.36, 1) both; }
.delay-one { animation-delay: 0.1s; }
.delay-two { animation-delay: 0.18s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-8px) translateX(4px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.05); opacity: 1; }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

@keyframes progress {
  0% { transform: translateX(-120%); }
  50% { transform: translateX(60%); }
  100% { transform: translateX(220%); }
}

/* Responsive */
@media (max-width: 1100px) {
  .power-strip,
  .pillar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1024px) {
  .hero-layout { grid-template-columns: 1fr; min-height: unset; }
  .hero-visual { order: -1; min-height: 400px; }
  .hero-copy h1 { max-width: 18ch; }
  .studio-grid { grid-template-columns: 1fr; }
  .result-panel { position: static; }
  .history-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .site-header { flex-direction: column; align-items: stretch; }
  .nav-links { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
  .power-metrics { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
  .power-strip,
  .pillar-grid,
  .scenario-grid,
  .history-grid { grid-template-columns: 1fr; }
  .mode-toggle { grid-template-columns: 1fr; }
  .select-row { grid-template-columns: 1fr; }
  .header-actions, .hero-actions, .generator-actions, .result-actions, .modal-actions { width: 100%; }
  .primary-button, .secondary-button { flex: 1; min-width: 0; }
  .hero-copy h1 { font-size: 2rem; }
  .compare-mini-card { width: 100%; }
  .floating-pill { font-size: 0.72rem; padding: 7px 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal, .floating-pill, .art-sun, .loader-ring, .progress-track span, .badge-dot {
    animation: none !important;
  }
  .reveal { opacity: 1; transform: none; }
}