/* Adam's Law — Quantum Logic Design System */
/* "The Digital Observatory" — Scientific Noir */

:root {
  --bg: #131313;
  --bg-deep: #0e0e0e;
  --surface-low: #1c1b1b;
  --surface: #201f1f;
  --surface-high: #2a2a2a;
  --surface-bright: #393939;
  --primary: #b0c6ff;
  --primary-grad: #568dff;
  --secondary: #d3fbff;
  --secondary-container: #00eefc;
  --secondary-fixed: #7df4ff;
  --tertiary: #ffb599;
  --tertiary-container: #f36420;
  --on-surface: #e5e2e1;
  --on-surface-variant: #c2c6d8;
  --outline-variant: #424655;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-label: 'Manrope', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.two-col.reverse {
  direction: rtl;
}
.two-col.reverse > * { direction: ltr; }

@media (max-width: 768px) {
  .two-col, .two-col.reverse { grid-template-columns: 1fr; direction: ltr; }
}

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-display); }

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--on-surface);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--on-surface-variant);
  font-size: 1.1rem;
  margin-bottom: 48px;
}

.label {
  font-family: var(--font-label);
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 80px 0;
  background: var(--bg-deep);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(19,19,19,0.95) 0%, rgba(14,14,14,0.7) 100%);
  z-index: 1;
}

.hero .container { position: relative; z-index: 2; }

.hero-inner {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 64px;
  align-items: center;
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

.hero-eyebrow {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.chip {
  font-family: var(--font-label);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 9999px;
  background: rgba(0,238,252,0.12);
  color: var(--secondary-container);
  border: 1px solid rgba(0,238,252,0.25);
  letter-spacing: 0.04em;
}

.chip-domain {
  background: rgba(176,198,255,0.1);
  color: var(--primary);
  border-color: rgba(176,198,255,0.2);
}

.hero-title {
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--on-surface);
  margin-bottom: 20px;
  line-height: 1.3;
}

.hero-abstract {
  font-size: 1rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 680px;
}

.hero-authors {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.author-text {
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

.hero-stat-badge {
  margin-bottom: 28px;
}

.stat-badge {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 9999px;
  background: rgba(243,100,32,0.15);
  color: var(--tertiary-container);
  border: 1px solid rgba(243,100,32,0.3);
  box-shadow: 0 0 16px rgba(243,100,32,0.15);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-grad));
  color: #002d6f;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(176,198,255,0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--secondary-container);
  border: 1px solid var(--secondary-container);
  box-shadow: 0 0 8px rgba(0,238,252,0.15);
}

.btn-secondary:hover {
  background: rgba(0,238,252,0.08);
  box-shadow: 0 0 16px rgba(0,238,252,0.3);
  transform: translateY(-1px);
}

.hero-thumbnail {
  width: 100%;
  max-width: 280px;
  border-radius: 8px;
  opacity: 0.85;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6), 0 0 40px rgba(176,198,255,0.1);
}

/* Metrics */
.section-metrics {
  background: var(--surface-low);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .metrics-grid { grid-template-columns: 1fr; }
}

.metric-card {
  background: var(--surface);
  border-radius: 8px;
  padding: 28px 24px;
  transition: all 0.25s ease;
  border: 1px solid rgba(66,70,85,0.4);
}

.metric-card:hover {
  background: var(--surface-high);
  box-shadow: 0 0 24px rgba(0,238,252,0.12);
  border-color: rgba(0,238,252,0.3);
  transform: translateY(-2px);
}

.metric-model {
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.metric-task {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  margin-bottom: 16px;
}

.metric-numbers {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.metric-before {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--on-surface-variant);
}

.metric-arrow {
  color: var(--secondary-container);
  font-size: 1.2rem;
}

.metric-after {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--secondary-fixed);
}

.metric-delta {
  font-family: var(--font-label);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--tertiary-container);
  background: rgba(243,100,32,0.12);
  padding: 2px 10px;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 12px;
}

.metric-desc {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

/* Abstract */
.section-abstract { background: var(--bg); }

.abstract-card {
  background: var(--surface-low);
  border-radius: 8px;
  padding: 32px 40px;
  border-left: 3px solid var(--secondary-container);
  max-width: 900px;
  margin: 0 auto;
}

.abstract-card p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--on-surface);
}

/* Introduction */
.section-intro { background: var(--surface-low); }

.section-intro p {
  margin-bottom: 16px;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.contributions-list {
  background: var(--bg-deep);
  border-radius: 8px;
  padding: 24px;
  margin-top: 24px;
}

.contributions-list h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-label);
}

.contributions-list ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contributions-list li {
  padding-left: 20px;
  position: relative;
  font-size: 0.95rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

.contributions-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--secondary-container);
}

/* Figures */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  border-radius: 6px;
  background: var(--surface);
}

figcaption {
  font-family: var(--font-label);
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  margin-top: 8px;
  line-height: 1.5;
}

.figures-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .figures-row { grid-template-columns: 1fr; }
}

/* Methodology */
.section-methodology { background: var(--bg); }

.method-block {
  background: var(--surface-low);
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 24px;
  border-left: 3px solid var(--primary);
}

.method-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.method-number {
  font-family: var(--font-label);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--secondary-container);
  letter-spacing: 0.1em;
}

.method-header h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--on-surface);
}

.method-body p {
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: 16px;
  font-size: 0.97rem;
}

.formula-block {
  background: var(--bg-deep);
  border-radius: 6px;
  padding: 20px 24px;
  margin: 16px 0;
}

.formula-label {
  font-family: var(--font-label);
  font-size: 0.82rem;
  color: var(--on-surface-variant);
  margin-bottom: 8px !important;
}

.formula {
  overflow-x: auto;
}

/* Dataset */
.section-dataset { background: var(--surface-low); }

.section-dataset p {
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: 16px;
}

.dataset-stats {
  background: var(--bg-deep);
  border-radius: 8px;
  padding: 20px 24px;
  margin-top: 24px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(66,70,85,0.3);
}

.stat-row:last-child { border-bottom: none; }

.stat-label {
  font-family: var(--font-label);
  font-size: 0.88rem;
  color: var(--on-surface-variant);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--secondary-fixed);
}

/* Results */
.section-results { background: var(--bg); }

.section-results p, .section-mt p, .section-ctft p, .section-analysis p {
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: 16px;
}

.result-highlights {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 24px 0;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--surface);
  border-radius: 6px;
  border-left: 3px solid var(--secondary-container);
}

.result-model {
  font-family: var(--font-label);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
}

.result-score {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--secondary-fixed);
}

/* MT Section */
.section-mt { background: var(--surface-low); }

.highlight-box {
  background: rgba(0,238,252,0.06);
  border: 1px solid rgba(0,238,252,0.2);
  border-radius: 6px;
  padding: 20px 24px;
  margin: 24px 0;
}

.highlight-box p { margin-bottom: 0 !important; color: var(--on-surface) !important; }

/* CTFT */
.section-ctft { background: var(--bg); }

.result-list {
  list-style: none;
  margin: 16px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-list li {
  padding: 10px 16px;
  background: var(--surface);
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--on-surface-variant);
  position: relative;
  padding-left: 28px;
}

.result-list li::before {
  content: '×';
  position: absolute;
  left: 12px;
  color: var(--tertiary);
  font-weight: 700;
}

/* Analysis */
.section-analysis { background: var(--surface-low); }

.insight-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 32px 0;
}

@media (max-width: 768px) {
  .insight-cards { grid-template-columns: 1fr; }
}

.insight-card {
  background: var(--surface);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  transition: all 0.25s ease;
}

.insight-card:hover {
  background: var(--surface-high);
  box-shadow: 0 0 20px rgba(176,198,255,0.08);
}

.insight-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.insight-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
  font-family: var(--font-display);
}

.insight-card p {
  font-size: 0.88rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
  margin-bottom: 0 !important;
}

/* Conclusion */
.section-conclusion { background: var(--bg); }

.conclusion-card {
  max-width: 900px;
  margin: 0 auto;
}

.conclusion-card p {
  font-size: 1.05rem;
  color: var(--on-surface-variant);
  line-height: 1.8;
  margin-bottom: 20px;
}

/* References */
.section-references { background: var(--surface-low); padding: 48px 0; }

.references-details {
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
}

.references-details summary {
  padding: 16px 24px;
  font-family: var(--font-label);
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  user-select: none;
  font-size: 0.95rem;
}

.references-details summary:hover { background: var(--surface-high); }

.references-content {
  padding: 16px 24px 24px;
  border-top: 1px solid rgba(66,70,85,0.4);
}

.references-list {
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.references-list li {
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Flecto Explanation UI Classes */
.flecto-note,
.flecto-callout,
.flecto-card,
.flecto-panel {
  border-radius: 6px;
  padding: 16px 20px;
  margin: 16px 0;
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--on-surface-variant);
}

.flecto-note::before,
.flecto-callout::before,
.flecto-card::before,
.flecto-panel::before {
  content: "🤖 AI explanation";
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #60a5fa;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.5em;
}

.flecto-note {
  background: rgba(176,198,255,0.05);
  border-left: 3px solid var(--primary);
}

.flecto-callout {
  background: rgba(0,238,252,0.06);
  border: 1px solid rgba(0,238,252,0.15);
}

.flecto-card {
  background: var(--surface);
  border: 1px solid rgba(66,70,85,0.5);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.flecto-panel {
  background: var(--surface-low);
  border: 1px solid rgba(176,198,255,0.15);
}

/* Glowing dividers */
.section::after {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(0,238,252,0.25), transparent);
  margin-top: 40px;
}

.section:last-child::after { display: none; }