/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; scroll-behavior: smooth; overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

body:has(.welcome-view) {
  overflow-y: hidden;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

/* === CSS CUSTOM PROPERTIES === */
:root {
  /* Font families */
  --font-sans: 'Epilogue', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Colors - Funky Pop Theme */
  --color-bg: #0b0c0e;                 /* near-black slate */
  --color-surface: #1a1c20;           /* ultra deep dark */
  --color-border: #2d3136;           /* thin, muted steel */
  --color-border-strong: #4b5159;    /* crisp graphite */
  --color-text: #ffffff;             /* blazing white for ultimate contrast */
  --color-text-muted: #caced4;       /* bright, legible mid-gray */
  --color-text-subtle: #96a1ab;      /* soft silver */

  /* Accents - Electric Orange (Primary), Vivid Cyan & Emerald (Pops) */
  --color-accent: #ff6a00;           /* pure electric neon orange */
  --color-accent-hover: #ff8533;     /* luminous orange hover */
  --color-accent-pink: #00e5ff;      /* vivid cyan (kept variable name) */
  --color-accent-pink-hover: #19ebff;
  --color-accent-purple: #1ce783;    /* brilliant emerald pop */
  --color-accent-gradient: linear-gradient(135deg, #f97316, #eab308);
  --color-focus: #f97316;

  /* Status colors */
  --color-preserved-bg: rgba(16, 185, 129, 0.15);
  --color-preserved-border: #10b981;
  --color-shifted-bg: rgba(245, 158, 11, 0.15);
  --color-shifted-border: #f59e0b;
  --color-lost-bg: rgba(239, 68, 68, 0.15);
  --color-lost-border: #ef4444;

  /* Score badge colors (brighter for strong contrast) */
  --color-badge-green-bg: rgba(28, 231, 131, 0.12);
  --color-badge-green-text: #1ce783;
  --color-badge-yellow-bg: rgba(255, 193, 7, 0.12);
  --color-badge-yellow-text: #ffc107;
  --color-badge-red-bg: rgba(255, 80, 80, 0.12);
  --color-badge-red-text: #ff5050;

  /* Model colors (Brighter variants for dark bg) */
  --color-model-claude: #f59e0b;
  --color-model-chatgpt: #10b981;
  --color-model-gemini: #3b82f6;
  --color-model-kimi: #a855f7;
  --color-model-copilot: #0ea5e9;
  --color-model-mistral: #f97316;
  --color-model-meta: #818cf8;
  --color-model-other: #94a3b8;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Layout */
  --max-width: 860px;
  --max-width-wide: 1200px;
  --radius: 4px;
  --radius-sm: 2px;
  --shadow: 4px 4px 0 rgba(249, 115, 22, 0.2);
  --shadow-md: 6px 6px 0 rgba(249, 115, 22, 0.3);
  --shadow-sm: 2px 2px 0 rgba(249, 115, 22, 0.2);
  --transition: all 0.25s cubic-bezier(0.25, 1, 0.5, 1);
}

/* === LAYOUT === */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  background: rgb(24, 24, 27);
  border-bottom: 2px solid var(--color-accent);
  padding: var(--space-md) var(--space-xl);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header__brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  text-decoration: none;
  line-height: 1;
}

.app-header__brand:hover {
  color: var(--color-text);
}

.app-header__title {
  line-height: 1;
}

.app-header__title span {
  color: var(--color-accent-pink);
}

.app-header__actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

#app-main {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-xl);
  width: 100%;
  animation: fadeIn 0.25s ease;
}

#app-main.wide {
  max-width: var(--max-width-wide);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === STEP INDICATOR === */
.step-indicator {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-xl);
  gap: 0;
}

.step-indicator__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  position: relative;
  flex-shrink: 0;
}

.step-indicator__dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-border);
  border: 2px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.step-indicator__item.active .step-indicator__dot {
  background: var(--color-accent-gradient);
  border-color: var(--color-accent);
  color: white;
  box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.15);
}

.step-indicator__item.completed .step-indicator__dot {
  background: var(--color-accent-purple);
  border-color: var(--color-accent-purple);
  color: white;
}

.step-indicator__label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  font-weight: 500;
}

.step-indicator__item.active .step-indicator__label {
  color: var(--color-accent);
  font-weight: 600;
}

.step-indicator__item.completed .step-indicator__label {
  color: var(--color-accent-purple);
}

.step-indicator__line {
  flex: 1;
  height: 2px;
  background: var(--color-border);
  margin: 0 var(--space-sm);
  margin-bottom: 1.2rem;
  min-width: 24px;
}

/* === CARDS === */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  box-shadow: var(--shadow);
}

/* === TYPOGRAPHY === */
.step-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.02em;
}

.step-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: var(--space-xl);
  max-width: 640px;
}

/* === FORM ELEMENTS === */
.field-group {
  margin-bottom: var(--space-lg);
}

.field-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.01em;
}

.select {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 1rem;
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
  max-width: 400px;
}

.select:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-color: var(--color-accent);
}

.textarea, .input {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  transition: var(--transition);
  resize: vertical;
}

.textarea:focus, .input:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-color: var(--color-accent);
}

.field-error {
  color: #f87171;
  font-size: 0.85rem;
  margin-top: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(239, 68, 68, 0.15);
  border-radius: var(--radius-sm);
  border-left: 3px solid #ef4444;
}

.field-success {
  color: #34d399;
  font-size: 0.85rem;
  margin-top: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: rgba(16, 185, 129, 0.15);
  border-radius: var(--radius-sm);
  border-left: 3px solid #10b981;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
}

.btn:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-accent);
  color: white;
}
.btn--primary:hover:not(:disabled) { background: var(--color-accent-hover); }
.btn--primary:disabled { opacity: 0.45; cursor: not-allowed; }

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-border-strong);
}
.btn--secondary:hover:not(:disabled) { background: var(--color-bg); }
.btn--secondary:disabled { opacity: 0.45; cursor: not-allowed; }

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-border);
}
.btn--ghost:hover { background: rgba(249,115,22,0.1); }

.btn--sm {
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
}

/* === MODEL CARD === */
.model-card {
  margin-top: var(--space-sm);
}

.model-card__inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  border-left: 3px solid var(--color-border-strong);
  background: var(--color-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.88rem;
  flex-wrap: wrap;
}

.model-card__tag {
  font-weight: 700;
  color: var(--color-text);
}

.model-card__strength {
  color: var(--color-text-muted);
  flex: 1;
}

.model-card__link {
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.82rem;
  white-space: nowrap;
}
.model-card__link:hover { text-decoration: underline; }

.model-card__other-input {
  max-width: 250px;
}

/* === LANGUAGE LOCKED === */
.lang-locked {
  padding: 0.6rem 0.9rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1rem;
  max-width: 400px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}
.lang-locked__note { color: var(--color-text-muted); font-size: 0.82rem; }

/* === TEXT DISPLAY (read-only) === */
.text-display {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.text-display__pre {
  font-family: inherit;
  font-size: 0.95rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--color-text);
}

.text-display .copy-btn {
  align-self: flex-end;
}

/* === PROMPT BLOCK === */
.prompt-block {
  position: relative;
  background: rgba(6, 182, 212, 0.05);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-left: 3px solid var(--color-accent-pink);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  padding-bottom: calc(var(--space-md) + 2rem);
}

.prompt-block__pre {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--color-text);
  line-height: 1.6;
}

.prompt-block .copy-btn {
  position: absolute;
  bottom: var(--space-sm);
  right: var(--space-sm);
}

/* === INSTRUCTION BLOCK === */
.instruction-block {
  background: rgba(249, 115, 22, 0.05);
  border: 1px solid rgba(249, 115, 22, 0.2);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.instruction-block p {
  color: #fdba74;
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
}

/* === SAMPLE HINT === */
.sample-hint {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* === WIZARD NAV === */
.wizard-nav {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.wizard-nav .btn--secondary { margin-right: auto; }

/* === COMPARISON VIEW === */
.comparison-view {
  animation: fadeIn 0.3s ease;
}

.comparison-header {
  margin-bottom: var(--space-xl);
}

.comparison-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding-bottom: 0.15em;
  margin-bottom: var(--space-sm);
}

.comparison-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.model-chain-desc {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
}

.model-badge {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 2px solid currentColor;
  font-weight: 600;
  font-size: 0.82rem;
}

.chain-arrow {
  color: var(--color-text-muted);
}

/* === SCORE BADGES === */
.score-badges {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.score-badges--inline {
  margin: var(--space-sm) 0;
}

.score-badge {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.score-badge__label {
  font-size: 0.82rem;
  font-weight: 500;
  opacity: 0.8;
}

.score-badge__value {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
}

.badge--green { background: var(--color-badge-green-bg); color: var(--color-badge-green-text); }
.badge--yellow { background: var(--color-badge-yellow-bg); color: var(--color-badge-yellow-text); }
.badge--red { background: var(--color-badge-red-bg); color: var(--color-badge-red-text); }

/* === SUMMARY CALLOUT === */
.summary-callout {
  background: rgba(24, 24, 27, 0.6);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent-pink);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.summary-callout--sm {
  font-size: 0.85rem;
  padding: var(--space-sm) var(--space-md);
  margin-top: var(--space-sm);
}

/* === TWO-COLUMN COMPARISON === */
.comparison-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.comparison-col {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.col-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.col-label {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
}

.col-sublabel {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.col-body {
  padding: var(--space-lg);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}

/* === THREE-COLUMN DEMO LAYOUT === */
.demo-columns {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.3fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.demo-col {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.col-header--neutral { background: rgba(24, 24, 27, 0.5); }
.col-header--control { background: rgba(249, 115, 22, 0.08); border-bottom-color: rgba(249, 115, 22, 0.3); }
.col-header--local { background: rgba(6, 182, 212, 0.08); border-bottom-color: rgba(6, 182, 212, 0.3); }

.demo-col--control .col-label { color: #fdba74; }
.demo-col--local .col-label { color: #67e8f9; }

.intermediate-text {
  padding: var(--space-md) var(--space-md) 0;
}

.intermediate-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.model-output {
  border-left: 3px solid var(--color-border-strong);
  padding-left: var(--space-md) !important;
  font-size: 0.92rem !important;
}

/* === ANNOTATION === */
.text-annotated {
  line-height: 1.8;
}

mark.annotation {
  border-radius: 3px;
  padding: 0.05em 0.15em;
  cursor: help;
  position: relative;
  transition: var(--transition);
}

mark.annotation:hover, mark.annotation:focus {
  filter: brightness(0.92);
  outline: 2px solid currentColor;
}

.annotation-tooltip {
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: white;
  font-size: 0.78rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  max-width: 280px;
  white-space: normal;
  text-align: center;
  z-index: 200;
  pointer-events: none;
  box-shadow: var(--shadow-md);
}

.annotation-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: #1e293b;
}

/* === ANNOTATION LEGEND === */
.annotation-legend {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.legend-item--preserved { background: var(--color-preserved-bg); color: #065f46; }
.legend-item--shifted { background: var(--color-shifted-bg); color: #92400e; }
.legend-item--lost { background: var(--color-lost-bg); color: #991b1b; }

/* === TIMELINE === */
.timeline-details {
  margin-bottom: var(--space-xl);
}

.timeline-summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: var(--space-sm) 0;
  user-select: none;
  list-style: none;
}

.timeline-summary::-webkit-details-marker { display: none; }
.timeline-summary:hover { color: var(--color-text); }

.timeline {
  padding: var(--space-md) 0;
  border-left: 2px solid var(--color-border);
  margin-left: var(--space-md);
}

.timeline-item {
  padding-left: var(--space-lg);
  position: relative;
  margin-bottom: var(--space-md);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid white;
}

.timeline-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.timeline-model {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-left: 3px solid var(--color-border-strong);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.timeline-text {
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
}

/* === DEMO BADGE === */
.demo-badge {
  display: inline-block;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

/* === CONTROL BADGE === */
.control-badge {
  display: inline-block;
  background: rgba(249, 115, 22, 0.15);
  color: #fdba74;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border: 1px solid rgba(249, 115, 22, 0.3);
  vertical-align: middle;
  margin-left: 0.3rem;
}

.image-sbs__col--control {
  background: rgba(249, 115, 22, 0.02);
  border-color: rgba(249, 115, 22, 0.2);
}

/* === DEMO SECTIONS === */
.demo-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--space-xl);
  border-bottom: 2px solid var(--color-border);
}

.demo-tab {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  transition: color 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
  margin-bottom: -2px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.demo-tab:hover { color: var(--color-text); }

.demo-tab--active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.demo-section {
  margin-bottom: var(--space-xl);
}

.demo-section__header {
  margin-bottom: var(--space-lg);
}

.demo-section__title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.demo-section__subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* === COMPARISON ACTIONS === */
.comparison-takeaway {
  text-align: center;
  margin: var(--space-2xl) auto var(--space-lg);
  max-width: 600px;
}

.comparison-takeaway p {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-muted);
  line-height: 1.6;
  font-style: italic;
}

.comparison-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

/* === NO ANALYSIS HINT === */
.no-analysis-hint {
  background: var(--color-bg);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
}

/* === FOCUS STYLES === */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* === SECTION TABS (header) === */
.section-tabs {
  grid-column: 2;
  justify-self: center;
  display: flex;
  gap: 4px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--color-border-strong);
  border-radius: 8px;
  padding: 4px;
  overflow: hidden;
}

.section-tab {
  position: relative;
  padding: 0.5rem 1.3rem;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--color-text-muted);
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
  font-family: inherit;
  white-space: nowrap;
  line-height: 1.3;
}

.section-tab__label {
  display: block;
}

.section-tab:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.08);
}

.section-tab--active {
  background: var(--color-accent);
  color: white;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.35);
}

.section-tab--active .section-tab__label {
  color: white;
}

.section-tab:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}


/* === UPLOAD ZONE === */
.upload-zone {
  display: flex;
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius);
  padding: var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--color-bg);
  min-height: 120px;
  align-items: center;
  justify-content: center;
}

.upload-zone:hover, .upload-zone--dragover { border-color: var(--color-accent); background: rgba(249, 115, 22, 0.08); }
.upload-zone--active { border-color: var(--color-accent-purple); border-style: solid; background: rgba(16, 185, 129, 0.1); padding: var(--space-sm); }

.upload-zone__input { display: none; }

.upload-zone__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.upload-zone__icon { font-size: 1.8rem; }
.upload-zone__hint { font-size: 0.78rem; color: var(--color-text-subtle); }

.upload-zone__preview {
  max-width: 100%;
  max-height: 200px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

/* === SELECTED PREVIEW === */
.selected-preview {
  margin-top: var(--space-md);
}

.selected-preview__wrap {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.selected-preview__img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.selected-preview__label {
  font-weight: 600;
  font-size: 0.9rem;
}

/* === IMAGE DISPLAY (step 1) === */
.image-display {
  margin-bottom: var(--space-lg);
  text-align: center;
}

.image-display__img {
  max-width: 100%;
  max-height: 300px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  object-fit: contain;
}

.image-display__label {
  margin-top: var(--space-sm);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* === IMAGE COMPARISON SLIDER === */
.image-comparison-container {
  margin-bottom: var(--space-xl);
}

.image-comparison {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  cursor: col-resize;
  user-select: none;
  background: #000;
  aspect-ratio: 1/1;
}

.image-comparison__original,
.image-comparison__generated {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}

.image-comparison__generated {
  clip-path: inset(0 0 0 50%);
  transition: clip-path 0.05s;
}

.image-comparison__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.image-comparison__divider {
  position: absolute;
  top: 0;
  left: 50%;
  width: 3px;
  height: 100%;
  background: white;
  transform: translateX(-50%);
  cursor: col-resize;
  z-index: 10;
  box-shadow: 0 0 8px rgba(0,0,0,0.5);
}

.image-comparison__handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 1rem;
  color: var(--color-text);
  pointer-events: none;
}

.image-comparison__arrow { line-height: 1; color: #64748b; font-size: 1.1rem; }

.image-comparison__label {
  position: absolute;
  bottom: var(--space-sm);
  font-size: 0.78rem;
  font-weight: 700;
  color: white;
  background: rgba(0,0,0,0.55);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  pointer-events: none;
  z-index: 5;
}

.image-comparison__label--left { left: var(--space-sm); }
.image-comparison__label--right { right: var(--space-sm); }

/* === CHAIN TABS === */
.chain-tabs {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.chain-tab {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}

.chain-tab:hover { border-color: var(--color-accent); color: var(--color-text); }

.chain-tab--active {
  border-color: var(--color-accent);
  background: rgba(249, 115, 22, 0.08);
  color: var(--color-accent);
}

.chain-tab--add {
  border-style: dashed;
  color: var(--color-text-subtle);
}
.chain-tab--add:hover { color: var(--color-accent); border-color: var(--color-accent); }

.chain-tab__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* === SIDE BY SIDE IMAGES === */
.image-sbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.image-sbs--multi {
  gap: var(--space-md);
}

.image-sbs__col {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.image-sbs__col:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.image-sbs__col--original {
  border-left: 3px solid var(--color-accent);
}

.image-sbs__img-wrap {
  padding: var(--space-md);
  background: var(--color-bg);
}

.image-sbs__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  object-fit: contain;
}

.comp-prompts {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.comp-prompt-block {
  border-radius: var(--radius);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.comp-prompt-block:hover {
  border-color: var(--color-border-strong);
}

.comp-prompt-block--expanded {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.comp-prompt-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  gap: var(--space-md);
  cursor: pointer;
  user-select: none;
  background: transparent;
  transition: background 0.15s ease;
}

.comp-prompt-block__header:hover {
  background: var(--color-bg);
}

.comp-prompt-block__who {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  min-width: 0;
  color: var(--color-text);
}

.comp-prompt-block__label {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
  white-space: nowrap;
  font-weight: 500;
}

.comp-prompt-block__label--shared {
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.comp-prompt-block__chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--color-text-muted);
}

.comp-prompt-block--expanded .comp-prompt-block__chevron {
  transform: rotate(180deg);
  color: var(--color-text);
}

.image-sbs__prompt-preview {
  position: relative;
  max-height: 0;
  overflow: hidden;
  padding: 0 var(--space-lg);
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
  opacity: 0.8;
}

.image-sbs__prompt-preview--expanded {
  max-height: 200rem;
  padding: 0 var(--space-lg) var(--space-lg);
  opacity: 1;
}

.demo-copy-btn {
  margin-top: var(--space-sm);
  float: right;
}

.image-sbs__prompt-text {
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  white-space: pre-wrap;
  margin: 0;
  padding: var(--space-sm) 0 0;
  background: transparent;
  border: none;
}


.image-sbs__desc-toggle {
  display: none;
}

@media (max-width: 900px) {
  .image-sbs--multi {
    grid-template-columns: 1fr 1fr !important;
  }
}

@media (max-width: 600px) {
  .image-sbs--multi {
    grid-template-columns: 1fr !important;
  }
}

/* === IMAGE DESCRIPTION BLOCK (comparison top) === */
.image-description-block {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-left: 6px solid var(--color-accent-pink);
  border-radius: var(--radius);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow);
}

.image-description-block__label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-pink);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.image-description-block__model {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: none;
  letter-spacing: 0;
  padding-left: var(--space-sm);
}

.image-description-block__text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
}

/* === DESCRIPTION USED === */
.description-used {
  padding: var(--space-md) 0;
}

.description-used__model {
  font-size: 0.85rem;
  padding: var(--space-xs) var(--space-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.description-used__text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  white-space: pre-wrap;
}

/* === CHAIN STEP LABEL === */
.chain-step-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* === WELCOME VIEW === */
.welcome-view {
  max-width: var(--max-width);
  margin: var(--space-2xl) auto;
  padding: 0;
}

.welcome-hero {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.welcome-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  padding-bottom: 0.15em;
}

.welcome-tagline {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-accent);
  max-width: 520px;
  margin: 0 auto var(--space-md);
  line-height: 1.6;
}

.welcome-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: var(--space-sm) auto 0;
  line-height: 1.6;
}

.welcome-subtitle em {
  font-style: italic;
  color: var(--color-text);
}

.welcome-insight,
.welcome-how {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow);
}

.welcome-insight h3,
.welcome-how h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.welcome-insight p,
.welcome-how p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.welcome-insight p:last-child,
.welcome-how p:last-child {
  margin-bottom: 0;
}

.welcome-steps {
  list-style: none;
  counter-reset: step-counter;
  padding: 0;
}

.welcome-steps li {
  counter-increment: step-counter;
  padding: var(--space-sm) 0 var(--space-sm) 2.5rem;
  position: relative;
  font-size: 1.05rem;
  line-height: 1.6;
}

.welcome-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent-gradient);
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  top: 0.5rem;
}

.welcome-lessons {
  list-style: none;
  padding: 0;
  margin-top: var(--space-md);
}

.welcome-lessons li {
  padding: var(--space-sm) 0 var(--space-sm) 1.6rem;
  position: relative;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-text);
}

.welcome-lessons li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.welcome-cta {
  text-align: center;
  margin-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.welcome-cta .btn {
  margin: 0 var(--space-sm) var(--space-sm);
}

.btn--lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1.1rem;
}

.welcome-demo-hint {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: var(--space-md);
}


/* === ABOUT SECTION (Comparison View) === */
.about-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin: var(--space-lg) 0;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.about-toggle {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.about-toggle::-webkit-details-marker { display: none; }
.about-toggle::before { content: '▸'; transition: transform 0.2s ease; display: inline-block; }
details[open] .about-toggle::before { transform: rotate(90deg); }

.about-content {
  padding: 0 var(--space-xl) var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.about-content p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-top: var(--space-md);
  margin-bottom: 0;
}

.about-takeaway {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-accent);
  padding: var(--space-md);
  background: rgba(249, 115, 22, 0.08);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-accent);
  margin-top: var(--space-md) !important;
}

/* === DEMO PAGER === */
.demo-pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.demo-pager__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.demo-pager__btn:hover:not(:disabled) {
  background: var(--color-bg);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.demo-pager__btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.demo-pager__dots {
  display: flex;
  gap: var(--space-xs);
}

.page-dot {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
}

.page-dot:hover {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: white;
}

.page-dot--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.page-dot--active:hover {
  opacity: 0.85;
}

/* === DESCRIPTION MODEL PILLS === */
.desc-model-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.desc-model-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.desc-model-pill:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.desc-model-pill--active:hover {
  color: white;
}

.desc-model-pill--active {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: white;
}

.desc-model-pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* === DEMO SHOWCASE (paginated layout) === */
.demo-showcase {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.demo-showcase__original {
  width: 100%;
}

.demo-showcase__original .demo-card__img-wrap {
  max-height: 400px;
  display: flex;
  justify-content: center;
}

.demo-showcase__original .demo-card__img {
  width: auto;
  max-width: 100%;
  max-height: 380px;
  margin: 0 auto;
}

.demo-showcase__generated {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.demo-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  overflow: visible;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.demo-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.demo-card--original {
  border-left: 3px solid var(--color-accent);
}

.demo-card--control {
  background: rgba(249, 115, 22, 0.02);
  border-color: rgba(249, 115, 22, 0.2);
}

.demo-card__header {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  border-radius: var(--radius) var(--radius) 0 0;
  position: relative;
  z-index: 10;
}

.demo-card__label {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.demo-card__img-wrap {
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: 0 0 var(--radius) var(--radius);
  cursor: zoom-in;
  overflow: hidden;
}

.demo-card__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  object-fit: contain;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-card__img-wrap:hover .demo-card__img {
  transform: scale(1.03);
}

@media (max-width: 500px) {
  .demo-showcase__generated {
    grid-template-columns: 1fr;
  }
}

/* === IMAGE LIGHTBOX === */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  transition: opacity 0.25s ease;
  cursor: zoom-out;
}

.lightbox-overlay--visible {
  opacity: 1;
}

.lightbox__inner {
  position: relative;
  max-width: 90vw;
  max-height: 88vh;
  transform: scale(0.92);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox-overlay--visible .lightbox__inner {
  transform: scale(1);
}

.lightbox__img-container {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 80vh;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  display: block;
  object-fit: contain;
  transition: filter 0.35s ease;
}

.lightbox__img--original {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.15s ease;
  pointer-events: none;
}

.lightbox__img--original.lightbox__img--visible {
  opacity: 1;
}

.lightbox__caption-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.lightbox__caption {
  color: #e2e8f0;
  font-size: 0.9rem;
  font-weight: 600;
}

.lightbox__toggle-btn {
  background: rgba(255, 255, 255, 0.15);
  color: #e2e8f0;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
  user-select: none;
  -webkit-user-select: none;
}

.lightbox__toggle-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox__toggle-btn:active {
  background: rgba(99, 102, 241, 0.5);
  transform: scale(0.97);
}

/* === OBSERVATIONS BUTTON & PANEL === */
.lightbox__obs-btn {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.4);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease, border-color 0.15s ease;
  user-select: none;
  -webkit-user-select: none;
  letter-spacing: 0.03em;
}
.lightbox__obs-btn:hover {
  background: rgba(251, 191, 36, 0.25);
}
.lightbox__obs-btn--active {
  background: rgba(251, 191, 36, 0.3);
  border-color: rgba(251, 191, 36, 0.7);
}

.lightbox__img-container--obs-active > .lightbox__img {
  filter: blur(14px) brightness(0.35);
  transition: filter 0.35s ease;
}
.lightbox__img-container--obs-active > .lightbox__lens {
  opacity: 0 !important;
}
.lightbox__img-container--obs-active {
  cursor: default !important;
}
.lightbox__img-container--obs-active .lightbox__obs-panel {
  cursor: default;
}

.lightbox__obs-panel {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 18;
}
.lightbox__obs-panel--visible {
  opacity: 1;
  pointer-events: auto;
}
.lightbox__obs-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 680px;
}
.lightbox__obs-item {
  margin: 0;
  color: #f1f5f9;
  font-size: 1.15rem;
  line-height: 1.65;
  padding-left: 18px;
  border-left: 3px solid rgba(251, 191, 36, 0.6);
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

.lightbox__close {
  position: absolute;
  top: -40px;
  right: -4px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.15);
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.lightbox__close:hover {
  background: rgba(255,255,255,0.3);
}

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(0,0,0,0.45);
  color: white;
  font-size: 1.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 12;
  transition: background 0.15s ease, transform 0.15s ease;
  backdrop-filter: blur(4px);
}
.lightbox__nav:hover {
  background: rgba(99,102,241,0.7);
  transform: translateY(-50%) scale(1.1);
}
.lightbox__nav--prev { left: -56px; }
.lightbox__nav--next { right: -56px; }

@media (max-width: 700px) {
  .lightbox__nav--prev { left: 8px; }
  .lightbox__nav--next { right: 8px; }
}

/* === LIGHTBOX MAGNIFYING GLASS === */
.lightbox__lens {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3), 0 8px 32px rgba(0, 0, 0, 0.4);
  pointer-events: none;
  z-index: 20;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.15s ease;
  background-repeat: no-repeat;
  cursor: none;
}

.lightbox__lens--active {
  opacity: 1;
}

.lightbox__img-container--magnifying {
  cursor: none;
}

/* === MODEL INFO TOOLTIP === */
.model-tip {
  position: relative;
  cursor: help;
  border-bottom: 1px dotted currentColor;
}

.model-tip__bubble {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: 300px;
  min-width: 220px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  font-size: 0.78rem;
  line-height: 1.5;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  z-index: 500;
  pointer-events: none;
  box-shadow: var(--shadow-md);
  white-space: normal;
  text-align: left;
}

.model-tip__bubble::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-border);
}

.model-tip:hover .model-tip__bubble,
.model-tip:focus-within .model-tip__bubble {
  display: block;
  animation: tipFadeIn 0.15s ease;
}

@keyframes tipFadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(4px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.model-tip__role {
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.model-tip__arena {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  background: rgba(255,255,255,0.12);
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  color: var(--color-text-muted);
}

.model-tip__detail {
  display: block;
  color: var(--color-text-subtle);
}

.model-tip__best-for {
  display: block;
  margin-top: 0.35rem;
  padding-top: 0.3rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-accent-pink);
  font-weight: 600;
  font-size: 0.72rem;
}

/* === FOOTER === */
.app-footer {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  color: var(--color-text-subtle);
  font-size: 0.85rem;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
}