/* WildDet3D — Event Horizon / The Galactic Observer */
/* Design System: Space Grotesk + Inter + Space Mono | Deep Navy-Black + Cyan + Magenta */

:root {
  --bg: #0e1322;
  --surface-low: #161b2b;
  --surface: #1a1f2f;
  --surface-high: #25293a;
  --surface-highest: #2f3445;
  --primary: #00d4ff;
  --primary-text: #a8e8ff;
  --secondary: #e00363;
  --secondary-text: #ffb1c0;
  --text-primary: #dee1f7;
  --text-secondary: #bbc9cf;
  --outline: #3c494e;
  --tertiary: #cdb7ff;
  --radius: 8px;
  --radius-sm: 4px;
  --ambient-shadow: 0 24px 48px rgba(0,212,255,0.08);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Flecto Header ── */
.flecto-header {
  position: sticky; top: 0; z-index: 9999;
  background: #1a1a2e; padding: 6px 16px;
  font-family: system-ui, sans-serif; font-size: 13px;
  border-bottom: 1px solid #333;
}
.flecto-header a { color: #8b8bcd; text-decoration: none; }
.flecto-header a:hover { color: var(--primary-text); }

/* ── Container ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── HERO ── */
.hero {
  position: relative; min-height: 90vh;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  background-repeat: no-repeat;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(14,19,34,0.85) 0%, rgba(14,19,34,0.92) 60%, rgba(14,19,34,0.75) 100%);
}
/* Nebula glow effects */
.hero::before {
  content: ''; position: absolute; top: -200px; left: -200px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.04) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; bottom: -100px; right: -100px;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(circle, rgba(224,3,99,0.04) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; padding: 120px 0 80px; max-width: 820px; }
.hero-label { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.1;
  margin-bottom: 16px; color: var(--text-primary);
}
.cyan-glow {
  color: var(--primary);
  text-shadow: 0 0 30px rgba(0,212,255,0.6), 0 0 60px rgba(0,212,255,0.3);
}
.hero-subtitle {
  font-size: 1.15rem; color: var(--text-secondary);
  max-width: 680px; margin-bottom: 12px;
}
.hero-affil {
  font-size: 0.8rem; color: var(--outline);
  font-family: 'Space Grotesk', sans-serif;
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 28px;
}
.hero-metrics {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.metric-badge {
  display: flex; flex-direction: column;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: var(--radius-sm); padding: 10px 16px;
}
.metric-value {
  font-family: 'Space Mono', monospace; font-size: 1.6rem; font-weight: 700;
  color: var(--primary); line-height: 1.1;
}
.metric-label {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.7rem;
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-secondary);
  margin-top: 2px;
}
.hero-actions {
  display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px;
}
.hero-authors {
  font-size: 0.8rem; color: var(--text-secondary); line-height: 1.8;
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; font-weight: 600;
  text-decoration: none; transition: all 0.2s; cursor: pointer; border: none;
}
.btn-primary {
  background: var(--primary); color: #001f27;
  box-shadow: 0 0 0 0 rgba(0,212,255,0.4);
}
.btn-primary:hover { box-shadow: 0 0 12px rgba(0,212,255,0.5), 0 0 24px rgba(0,212,255,0.3); }
.btn-ghost {
  background: transparent; color: var(--primary-text);
  border: 1px solid rgba(0,212,255,0.35);
}
.btn-ghost:hover { background: rgba(0,212,255,0.08); }

/* ── Chips ── */
.chip {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em; padding: 3px 10px;
  border-radius: 20px;
}
.chip-cyan { background: rgba(0,212,255,0.15); color: var(--primary); border: 1px solid rgba(0,212,255,0.3); }
.chip-pink { background: rgba(224,3,99,0.15); color: var(--secondary-text); border: 1px solid rgba(224,3,99,0.3); }
.chip-dim { background: rgba(60,73,78,0.4); color: var(--text-secondary); }

/* ── Sections ── */
.section { padding: 80px 0; }
.section-dark { background: var(--surface-low); }
.section-header {
  display: flex; align-items: baseline; gap: 16px; margin-bottom: 40px;
}
.section-num {
  font-family: 'Space Mono', monospace; font-size: 0.75rem;
  color: var(--primary); opacity: 0.7;
}
.section-header h2 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.9rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-primary);
}
.section-intro { max-width: 780px; margin-bottom: 40px; color: var(--text-secondary); font-size: 1.05rem; }

/* ── Glass Cards ── */
.glass-card {
  background: rgba(37,41,58,0.8); border-radius: var(--radius);
  padding: 32px; box-shadow: var(--ambient-shadow);
  border-top: 1px solid rgba(60,73,78,0.25);
  border-left: 1px solid rgba(60,73,78,0.15);
}

/* ── Abstract ── */
.abstract-card {
  border-left: 3px solid var(--primary);
}
.section-label {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em; color: var(--primary);
  margin-bottom: 16px;
}

/* ── Two-column layout ── */
.two-col {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 40px; align-items: start; margin: 32px 0;
}
.two-col-reverse { direction: rtl; }
.two-col-reverse > * { direction: ltr; }
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; }
}
.text-col { display: flex; flex-direction: column; gap: 16px; }
.text-col h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.2rem; font-weight: 600;
  color: var(--text-primary); margin-top: 8px;
}
.text-col ul { padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.text-col li { color: var(--text-secondary); }
.fig-col figure { margin: 0; }
.fig-col img, .inline-fig img, .full-fig img {
  width: 100%; border-radius: var(--radius); display: block;
  border: 1px solid rgba(60,73,78,0.3);
}

/* ── Figures ── */
.full-fig { margin: 32px 0; }
.inline-fig { margin: 24px 0; max-width: 700px; }
figcaption {
  font-size: 0.85rem; color: var(--text-secondary);
  margin-top: 10px; line-height: 1.5; font-style: italic;
}

/* ── Highlight box ── */
.highlight-box {
  background: rgba(0,212,255,0.07); border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 16px 20px;
}
.highlight-box p { font-size: 0.95rem; line-height: 1.6; }

/* ── Architecture cards ── */
.subsection { margin-top: 48px; }
.subsection h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.3rem; font-weight: 600;
  color: var(--primary-text); margin-bottom: 20px;
}
.arch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 24px; }
@media (max-width: 768px) { .arch-grid { grid-template-columns: 1fr; } }
.arch-card { display: flex; flex-direction: column; gap: 10px; }
.arch-card-icon { font-size: 1.8rem; }
.arch-card h4 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600;
  color: var(--primary-text);
}
.arch-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* ── Prompt grid ── */
.prompt-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 16px 0; }
@media (max-width: 768px) { .prompt-grid { grid-template-columns: repeat(2, 1fr); } }
.prompt-card {
  background: var(--surface-high); border-radius: var(--radius-sm); padding: 16px;
  border: 1px solid rgba(60,73,78,0.3);
  display: flex; flex-direction: column; gap: 6px;
}
.prompt-icon { font-size: 1.5rem; }
.prompt-card h4 {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; font-weight: 600;
  color: var(--primary-text);
}
.prompt-card p { font-size: 0.82rem; color: var(--text-secondary); }

/* ── Formula card ── */
.formula-card { margin-top: 16px; }
.formula-card h4 { font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600; color: var(--primary-text); margin-bottom: 12px; }
.math-block {
  overflow-x: auto; padding: 12px 0; font-size: 1.05rem;
  border-top: 1px solid rgba(60,73,78,0.3); border-bottom: 1px solid rgba(60,73,78,0.3);
  margin: 12px 0;
}

/* ── Loss grid ── */
.loss-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 16px; }
@media (max-width: 768px) { .loss-grid { grid-template-columns: repeat(2, 1fr); } }
.loss-badge {
  background: rgba(205,183,255,0.08); border: 1px solid rgba(205,183,255,0.2);
  border-radius: var(--radius-sm); padding: 12px; text-align: center;
  display: flex; flex-direction: column; gap: 4px;
}
.loss-name { font-family: 'Space Mono', monospace; font-size: 1rem; color: var(--tertiary); }
.loss-desc { font-size: 0.78rem; color: var(--text-secondary); font-family: 'Space Grotesk', sans-serif; }

/* ── Dataset stats ── */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 32px 0; }
@media (max-width: 768px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }
.stat-card {
  display: flex; flex-direction: column; align-items: center;
  background: rgba(0,212,255,0.06); border: 1px solid rgba(0,212,255,0.25);
  border-radius: var(--radius); padding: 20px 12px; text-align: center;
}
.stat-value {
  font-family: 'Space Mono', monospace; font-size: 1.5rem; font-weight: 700;
  color: var(--primary); line-height: 1.2;
}
.stat-label {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-secondary);
  margin-top: 4px;
}

/* ── Pipeline steps ── */
.pipeline-steps {
  display: flex; align-items: stretch; gap: 0; margin: 28px 0;
}
.pipeline-step {
  flex: 1; display: flex; gap: 12px;
  background: var(--surface-high); padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(60,73,78,0.3);
}
.pipeline-arrow {
  display: flex; align-items: center; padding: 0 8px;
  color: var(--primary); font-size: 1.2rem; font-weight: 700;
}
.step-num {
  width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
  background: var(--primary); color: #001f27;
  font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center;
}
.step-content h4 {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; font-weight: 600;
  color: var(--primary-text); margin-bottom: 6px;
}
.step-content p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.5; }
@media (max-width: 768px) {
  .pipeline-steps { flex-direction: column; }
  .pipeline-arrow { justify-content: center; transform: rotate(90deg); }
}

/* ── Experiments ── */
.highlight-result { margin: 32px 0; }
.highlight-result h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.1rem; font-weight: 700;
  color: var(--primary-text); margin-bottom: 20px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.result-comparison { display: flex; align-items: center; gap: 20px; margin-bottom: 16px; }
.result-item { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.result-label { font-family: 'Space Grotesk', sans-serif; font-size: 0.8rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.06em; }
.result-value { font-family: 'Space Mono', monospace; font-size: 2rem; font-weight: 700; }
.result-cyan { color: var(--primary); text-shadow: 0 0 20px rgba(0,212,255,0.4); }
.result-dim { color: var(--outline); }
.result-note { font-size: 0.78rem; color: var(--text-secondary); }
.result-vs { font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; color: var(--outline); font-weight: 600; }
.result-caption { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; margin: 20px 0; border-radius: var(--radius); }
table {
  width: 100%; border-collapse: collapse;
  font-size: 0.85rem;
}
th {
  background: var(--surface-highest); color: var(--text-secondary);
  font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 12px 14px; text-align: left;
  border-bottom: 1px solid rgba(60,73,78,0.4);
}
td {
  padding: 10px 14px; color: var(--text-primary);
  border-bottom: 1px solid rgba(60,73,78,0.2);
}
.row-baseline td { color: var(--text-secondary); }
.row-ours td { }
.row-best td { background: rgba(0,212,255,0.04); }
.highlight-cell { font-family: 'Space Mono', monospace; font-weight: 700; color: var(--primary-text); }
.highlight-best { color: var(--primary); }
.table-caption { font-size: 0.82rem; color: var(--text-secondary); font-style: italic; line-height: 1.5; }

/* ── Experiments headings ── */
#experiments h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.2rem; font-weight: 600;
  color: var(--primary-text); margin: 40px 0 14px;
}
#experiments p { margin-bottom: 12px; color: var(--text-secondary); }

/* ── Applications ── */
.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 32px 0; }
@media (max-width: 768px) { .app-grid { grid-template-columns: 1fr; } }
.app-card { display: flex; flex-direction: column; gap: 14px; }
.app-icon { font-size: 2rem; }
.app-card h3 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1.1rem; font-weight: 600;
  color: var(--primary-text);
}
.app-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.app-card figure { margin: 0; }

/* ── Conclusion ── */
.conclusion-card { }
.conclusion-highlights {
  display: flex; gap: 24px; margin-top: 24px; flex-wrap: wrap;
}
.concl-item { display: flex; flex-direction: column; }
.concl-num {
  font-family: 'Space Mono', monospace; font-size: 2rem; font-weight: 700;
  color: var(--primary);
}
.concl-label {
  font-family: 'Space Grotesk', sans-serif; font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-secondary);
}

/* ── Limitations ── */
#limitations .glass-card ul { padding-left: 20px; display: flex; flex-direction: column; gap: 14px; }
#limitations li { color: var(--text-secondary); line-height: 1.7; }
#limitations strong { color: var(--primary-text); }

/* ── References ── */
.references-details { }
.references-details summary {
  font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; color: var(--primary);
  cursor: pointer; padding: 16px 0; user-select: none;
}
.references-list {
  padding-left: 24px; color: var(--text-secondary);
  font-size: 0.85rem; line-height: 1.7; margin-top: 16px;
  display: flex; flex-direction: column; gap: 8px;
}

/* ── flecto-note / callout / card / panel (for explanation UI) ── */
.flecto-note, .flecto-callout, .flecto-card, .flecto-panel {
  position: relative; margin: 20px 0; border-radius: var(--radius-sm);
  padding: 16px 20px;
}
.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(0,212,255,0.05); border-left: 3px solid var(--primary);
  font-size: 0.9rem; color: var(--text-secondary);
}
.flecto-callout {
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.2);
}
.flecto-card {
  background: var(--surface-high); border: 1px solid rgba(60,73,78,0.4);
  box-shadow: var(--ambient-shadow);
}
.flecto-panel {
  background: var(--surface-highest); border: 1px solid rgba(205,183,255,0.2);
}
.flecto-card h4, .flecto-panel h4 {
  font-family: 'Space Grotesk', sans-serif; font-size: 1rem; font-weight: 600;
  color: var(--primary-text); margin-bottom: 8px;
}

/* ── Reveal animation ── */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.visible, .reveal.revealed { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; }
}