/* ══════════════════════════════════════════════════════
   SEAN.JPOP.CLOUD — The Molt Report
   Crimson lobster meets luxury terminal aesthetics
   ══════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── CSS Custom Properties ── */
:root {
  --crimson: #8B0000;
  --crimson-light: #B22222;
  --crimson-glow: #FF2D2D;
  --gold: #FFD700;
  --gold-dim: #B8960F;
  --charcoal: #0D0D0D;
  --charcoal-light: #1A1A1A;
  --charcoal-mid: #252525;
  --charcoal-border: #333;
  --text: #E8E8E8;
  --text-dim: #999;
  --text-muted: #666;
  --green: #00FF88;
  --green-dim: #00CC6A;
  --blue: #4A9EFF;
  --orange: #FF8C00;
  --purple: #A855F7;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1200px;
  --section-pad: clamp(60px, 10vh, 120px);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  background: var(--charcoal);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--crimson);
  color: var(--gold);
}

a {
  color: var(--gold);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--gold-dim); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--charcoal); }
::-webkit-scrollbar-thumb { background: var(--crimson); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--crimson-light); }

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(139, 0, 0, 0.3);
  transition: all 0.3s;
}

.nav.scrolled {
  background: rgba(13, 13, 13, 0.95);
  border-bottom-color: var(--crimson);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--crimson-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo .earring {
  color: var(--gold);
  font-size: 0.8rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--crimson-light);
  transition: width 0.3s;
}

.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Section Base ── */
.section {
  padding: var(--section-pad) 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--crimson-light);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-label::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--crimson);
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 600px;
  margin-bottom: 3rem;
}

/* ── Hero Section ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(139, 0, 0, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255, 215, 0, 0.05) 0%, transparent 40%),
    var(--charcoal);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 0, 0, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 0, 0, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(139, 0, 0, 0.2);
  border: 1px solid rgba(139, 0, 0, 0.4);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--crimson-light);
  margin-bottom: 2rem;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}

.hero h1 .crimson { color: var(--crimson-light); }
.hero h1 .gold { color: var(--gold); }

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  animation: float 3s ease-in-out infinite;
}

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

/* ── Terminal Block ── */
.terminal {
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 8px;
  overflow: hidden;
  margin: 2rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--charcoal-border);
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.red { background: #FF5F56; }
.terminal-dot.yellow { background: #FFBD2E; }
.terminal-dot.green { background: #27C93F; }

.terminal-title {
  margin-left: 8px;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.terminal-body {
  padding: 1.25rem;
  line-height: 1.8;
  overflow-x: auto;
}

.terminal-body .prompt { color: var(--crimson-light); }
.terminal-body .command { color: var(--text); }
.terminal-body .comment { color: var(--text-muted); }
.terminal-body .output { color: var(--green); }
.terminal-body .flag { color: var(--gold); }
.terminal-body .string { color: var(--orange); }
.terminal-body .key { color: var(--blue); }

/* ── Cards Grid ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.card {
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--crimson), var(--gold));
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover {
  border-color: rgba(139, 0, 0, 0.5);
  transform: translateY(-2px);
}

.card:hover::before { opacity: 1; }

.card-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.card-tag {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.2rem 0.6rem;
  background: rgba(139, 0, 0, 0.2);
  border: 1px solid rgba(139, 0, 0, 0.3);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--crimson-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Model Constellation ── */
.constellation {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.constellation-node {
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  transition: all 0.3s;
  cursor: default;
}

.constellation-node:hover {
  border-color: var(--crimson);
  background: rgba(139, 0, 0, 0.08);
}

.constellation-node.active {
  border-color: var(--green-dim);
  box-shadow: 0 0 12px rgba(0, 255, 136, 0.1);
}

.constellation-node .node-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.constellation-node .node-provider {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.constellation-node .node-ctx {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--blue);
  margin-top: 0.4rem;
}

/* ── Memory Flow Diagram ── */
.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
  padding: 2rem;
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 12px;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  min-width: 120px;
}

.flow-step-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  border: 2px solid var(--charcoal-border);
  transition: all 0.3s;
}

.flow-step:nth-child(odd) .flow-step-icon {
  border-color: var(--crimson);
  background: rgba(139, 0, 0, 0.15);
}

.flow-step:nth-child(even) .flow-step-icon {
  border-color: var(--gold-dim);
  background: rgba(255, 215, 0, 0.08);
}

.flow-step-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.flow-step-desc {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.flow-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ── Timeline ── */
.timeline {
  position: relative;
  margin: 2rem 0;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--crimson), var(--gold), var(--crimson));
}

.timeline-item {
  position: relative;
  padding: 1.5rem 0 1.5rem 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 1.8rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--crimson-light);
  border: 2px solid var(--charcoal);
  transform: translateX(-3px);
}

.timeline-item .time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.timeline-item h4 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin: 0.3rem 0;
}

.timeline-item p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ── Skill Showcase ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.skill-card {
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all 0.3s;
}

.skill-card:hover {
  border-color: rgba(255, 215, 0, 0.4);
}

.skill-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: rgba(139, 0, 0, 0.15);
}

.skill-info .skill-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.skill-info .skill-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Quote / Callout ── */
.callout {
  position: relative;
  padding: 2rem 2rem 2rem 3rem;
  margin: 3rem 0;
  background: rgba(139, 0, 0, 0.08);
  border-left: 3px solid var(--crimson);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.callout .attribution {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--crimson-light);
}

/* ── Stat Row ── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
  padding: 2rem;
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 12px;
}

.stat-item {
  text-align: center;
}

.stat-item .stat-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--crimson-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

/* ── Code Inline ── */
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(139, 0, 0, 0.15);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--crimson-light);
}

/* ── Divider ── */
.divider {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.divider hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--crimson), transparent);
}

/* ── Footer ── */
.footer {
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-logo .crimson { color: var(--crimson-light); }
.footer-logo .gold { color: var(--gold); }

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links a:hover { color: var(--gold); }

.footer-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2rem;
  line-height: 1.6;
}

.footer-note .live-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  margin-right: 0.4rem;
  animation: pulse 2s infinite;
}

/* ── Lobster Rain (Easter Egg) ── */
.lobster-rain {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 9999;
  overflow: hidden;
}

.lobster-rain .lobster {
  position: absolute;
  font-size: 2rem;
  animation: fall linear forwards;
}

@keyframes fall {
  0% { transform: translateY(-50px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

/* ── Reveal Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ── Typing Effect ── */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--crimson-light);
  margin-left: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ── Agent Architecture Diagram ── */
.arch-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: start;
  margin: 2rem 0;
}

.arch-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.arch-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding-top: 2rem;
}

.arch-center .arch-core {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--crimson) 0%, var(--charcoal) 100%);
  border: 2px solid var(--crimson-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 0 30px rgba(139, 0, 0, 0.4);
}

.arch-node {
  background: var(--charcoal-light);
  border: 1px solid var(--charcoal-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-align: center;
  transition: all 0.3s;
}

.arch-node:hover {
  border-color: var(--crimson);
}

.arch-node .node-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ── Badge Pill ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
}

.badge.green { background: rgba(0, 255, 136, 0.1); color: var(--green); border: 1px solid rgba(0, 255, 136, 0.2); }
.badge.gold { background: rgba(255, 215, 0, 0.1); color: var(--gold); border: 1px solid rgba(255, 215, 0, 0.2); }
.badge.crimson { background: rgba(139, 0, 0, 0.2); color: var(--crimson-light); border: 1px solid rgba(139, 0, 0, 0.3); }
.badge.blue { background: rgba(74, 158, 255, 0.1); color: var(--blue); border: 1px solid rgba(74, 158, 255, 0.2); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.98);
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid var(--crimson);
  }

  .hero-stats { gap: 1.5rem; }
  .arch-diagram { grid-template-columns: 1fr; }
  .arch-center { padding: 0; }
  .flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
  .constellation { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}

@media (max-width: 480px) {
  .section { padding: 3rem 1.25rem; }
  .hero-content { padding: 0 1.25rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}