/* ===================================================
   EMN — Ecological Memory Networks
   Design: Scientific organic, dark earth tones,
   miombo-inspired. Syne + Space Mono.
   =================================================== */

:root {
  --earth:    #1A1710;
  --soil:     #2C2618;
  --bark:     #3D3520;
  --moss:     #4A4E2A;
  --leaf:     #5A8A4A;
  --canopy:   #4FC18A;
  --sky:      #87C4D8;
  --sun:      #D4A03A;
  --fire:     #E07B3F;
  --ash:      #B0A88A;
  --sand:     #E8DFC4;
  --fog:      #F4EFE3;
  --white:    #FDFAF4;

  --text-primary:   var(--white);
  --text-secondary: var(--ash);
  --text-muted:     #6B6450;

  --bg-dark:  var(--earth);
  --bg-card:  var(--soil);
  --bg-light: var(--fog);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --font-display: 'Syne', sans-serif;
  --font-mono:    'Space Mono', monospace;
  --font-body:    'Instrument Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--earth);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* Grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.5;
}

/* ======================== NAV ======================== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 2rem;
  height: 60px;
  display: flex; align-items: center;
  background: rgba(26, 23, 16, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.nav-inner {
  width: 100%; max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; gap: 2rem;
}
.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-display);
  font-weight: 700; font-size: 16px;
  letter-spacing: 0.05em;
}
.logo-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--canopy);
  animation: pulse-dot 2.5s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}
.nav-sub { font-size: 11px; color: var(--text-muted); font-weight: 400; font-family: var(--font-body); }
.nav-links { display: flex; gap: 1.5rem; margin-left: auto; }
.nav-link {
  font-size: 12px; font-family: var(--font-mono);
  color: var(--text-secondary); text-decoration: none;
  letter-spacing: 0.05em; text-transform: uppercase;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--canopy); }
.nav-badge {
  font-size: 10px; padding: 3px 10px; border-radius: 12px;
  background: rgba(79,193,138,0.12); color: var(--canopy);
  border: 1px solid rgba(79,193,138,0.25);
  font-family: var(--font-mono); letter-spacing: 0.06em;
  white-space: nowrap;
}

/* ======================== HERO ======================== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: center; align-items: flex-start;
  padding: 120px 2rem 0;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
#hero-canvas { width: 100%; height: 100%; display: block; }

.hero-content {
  position: relative; z-index: 1;
  max-width: 700px;
  margin: 0 auto 0 max(2rem, calc((100vw - 1200px)/2));
  animation: fadeUp 0.9s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-eyebrow {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--canopy); letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 1.5rem;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--canopy);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 800; line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 1.5rem;
}
.hero-title em {
  font-style: italic; color: var(--canopy);
}
.hero-desc {
  font-size: 16px; color: var(--ash);
  max-width: 480px; margin-bottom: 2.5rem;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 1rem; align-items: center; }

.hero-stat-strip {
  position: relative; z-index: 1;
  width: 100%;
  margin-top: auto;
  padding: 2rem max(2rem, calc((100vw - 1200px)/2));
  display: flex; gap: 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: rgba(26,23,16,0.6);
  backdrop-filter: blur(8px);
}
.hstat {
  flex: 1; padding: 1.5rem 2rem;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.hstat:last-child { border-right: none; }
.hstat-n {
  display: block;
  font-family: var(--font-display); font-size: 2.5rem; font-weight: 700;
  color: var(--canopy); line-height: 1;
}
.hstat-l {
  display: block; font-size: 12px; color: var(--text-muted);
  margin-top: 4px; font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ======================== BUTTONS ======================== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-md);
  background: var(--canopy); color: var(--earth);
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  border: none; cursor: pointer;
  transition: all 0.2s; position: relative; overflow: hidden;
}
.btn-primary:hover { background: #63D49A; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(79,193,138,0.3); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn-primary.big { padding: 14px 32px; font-size: 15px; }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 20px; border-radius: var(--radius-md);
  background: transparent; color: var(--ash);
  font-family: var(--font-body); font-size: 14px;
  border: 1px solid rgba(255,255,255,0.12); cursor: pointer;
  transition: all 0.2s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.25); color: var(--white); }

.run-progress {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: rgba(0,0,0,0.15); width: 0%;
  transition: width 0.4s ease;
}

/* ======================== SECTIONS ======================== */
.section { padding: 100px 2rem; }
.section.dark { background: var(--soil); }
.about-section { background: var(--bark); }

.section-inner { max-width: 1200px; margin: 0 auto; }
.section-header { margin-bottom: 3rem; }
.section-tag {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--canopy); letter-spacing: 0.12em;
  text-transform: uppercase; display: block; margin-bottom: 1rem;
}
.section-tag.light { color: var(--canopy); }
.section-title {
  font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800; letter-spacing: -0.02em; line-height: 1.05;
  color: var(--white); margin-bottom: 1rem;
}
.section-title.light { color: var(--white); }
.section-body { font-size: 15px; color: var(--ash); max-width: 560px; line-height: 1.75; }
.section-body.light { color: var(--ash); }

/* ======================== SITE SELECTOR ======================== */
.site-selector { display: flex; gap: 8px; margin-bottom: 2rem; flex-wrap: wrap; }
.site-btn {
  padding: 8px 20px; border-radius: 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-secondary); font-size: 13px;
  cursor: pointer; transition: all 0.2s; font-family: var(--font-body);
}
.site-btn:hover { border-color: rgba(79,193,138,0.3); color: var(--canopy); }
.site-btn.active {
  background: rgba(79,193,138,0.12);
  border-color: rgba(79,193,138,0.4);
  color: var(--canopy);
}

/* ======================== PIPELINE CARDS ======================== */
.pipeline-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px; margin-bottom: 2rem;
}
.pipeline-card {
  background: var(--soil); border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg); padding: 1.25rem;
  transition: border-color 0.3s;
}
.pipeline-card.active { border-color: rgba(79,193,138,0.3); }
.pipeline-card.done   { border-color: rgba(79,193,138,0.5); }

.pc-header { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 1rem; }
.pc-icon { font-size: 20px; line-height: 1; }
.pc-title { font-family: var(--font-display); font-size: 13px; font-weight: 600; }
.pc-src { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }
.pc-status {
  margin-left: auto; font-size: 10px; padding: 3px 8px; border-radius: 10px;
  font-family: var(--font-mono); font-weight: 700; letter-spacing: 0.08em;
  white-space: nowrap;
}
.pc-status.idle   { background: rgba(255,255,255,0.06); color: var(--text-muted); }
.pc-status.running { background: rgba(212,160,58,0.15); color: var(--sun); animation: blink 1s ease infinite; }
.pc-status.done   { background: rgba(79,193,138,0.15); color: var(--canopy); }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.4} }

.pc-chart-wrap { height: 120px; position: relative; margin-bottom: 8px; }
.pc-meta { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }

.pipeline-run-bar { display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; }
.pipeline-log {
  font-family: var(--font-mono); font-size: 12px; color: var(--canopy);
  min-height: 24px; line-height: 1.6;
}

/* ======================== NETWORK ======================== */
.network-layout { display: grid; grid-template-columns: 1fr 320px; gap: 2rem; align-items: start; }
.network-canvas-wrap { position: relative; background: rgba(0,0,0,0.3); border-radius: var(--radius-lg); overflow: hidden; }
#network-canvas { display: block; width: 100%; height: auto; }
.network-overlay {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(26,23,16,0.7); font-family: var(--font-mono); font-size: 13px;
  color: var(--text-muted); transition: opacity 0.5s;
}
.network-overlay.hidden { opacity: 0; pointer-events: none; }

.network-metrics {
  background: rgba(0,0,0,0.3); border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.06); padding: 1.5rem;
}
.nm-title { font-family: var(--font-display); font-size: 13px; font-weight: 600; margin-bottom: 1rem; }
.nm-row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
.nm-row.highlight { background: rgba(79,193,138,0.08); margin: 4px -0.5rem; padding: 8px 0.5rem; border-radius: 6px; border-bottom: none; }
.nm-label { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); }
.nm-val { font-size: 13px; font-family: var(--font-mono); font-weight: 700; color: var(--canopy); }
.nm-legend { display: flex; flex-wrap: wrap; gap: 8px; margin: 1rem 0; }
.nm-leg-item { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }
.nm-dot { width: 8px; height: 8px; border-radius: 50%; }
.theory-box { background: rgba(79,193,138,0.06); border: 1px solid rgba(79,193,138,0.15); border-radius: var(--radius-md); padding: 1rem; margin-top: 1rem; }
.theory-box-title { font-family: var(--font-mono); font-size: 10px; color: var(--canopy); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 0.5rem; }
.theory-box-body { font-size: 12px; color: var(--ash); line-height: 1.65; }

/* ======================== MODEL ======================== */
.model-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.model-panel { background: var(--soil); border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius-lg); padding: 1.5rem; }
.mp-title { font-family: var(--font-display); font-size: 14px; font-weight: 600; margin-bottom: 1.25rem; }
.arch-diagram { display: flex; align-items: stretch; gap: 8px; min-height: 180px; }
.arch-layer { flex: 1; }
.arch-label { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; }
.arch-nodes { display: flex; flex-direction: column; gap: 5px; }
.arch-node {
  padding: 5px 8px; border-radius: 4px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.07);
  font-size: 11px; color: var(--ash); font-family: var(--font-mono);
  text-align: center;
}
.arch-node.emn { background: rgba(79,193,138,0.12); border-color: rgba(79,193,138,0.25); color: var(--canopy); }
.arch-node.big { padding: 8px; font-size: 12px; }
.arch-layer.lstm .arch-node { background: rgba(135,196,216,0.1); border-color: rgba(135,196,216,0.2); color: var(--sky); }
.arch-layer.output .arch-node { background: rgba(212,160,58,0.1); border-color: rgba(212,160,58,0.25); color: var(--sun); }
.arch-arrow { display: flex; align-items: center; color: var(--text-muted); font-size: 18px; padding-top: 24px; }

.train-controls { display: flex; align-items: center; gap: 12px; margin-bottom: 1rem; flex-wrap: wrap; }
.train-label { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); }
.horizon-btns { display: flex; gap: 6px; }
.hz-btn {
  padding: 5px 12px; border-radius: 12px; font-size: 12px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-secondary); cursor: pointer; transition: all 0.2s; font-family: var(--font-mono);
}
.hz-btn.active { background: rgba(135,196,216,0.12); border-color: rgba(135,196,216,0.3); color: var(--sky); }

.train-metrics { display: flex; gap: 1rem; margin: 1rem 0; flex-wrap: wrap; }
.tm-item { flex: 1; min-width: 80px; }
.tm-l { display: block; font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 2px; }
.tm-v { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--white); }

/* ======================== RESULTS ======================== */
.results-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-bottom: 2rem; }
.results-empty { grid-column: 1/-1; text-align: center; padding: 4rem; color: var(--text-muted); font-family: var(--font-mono); font-size: 13px; border: 1px dashed rgba(255,255,255,0.08); border-radius: var(--radius-lg); }

.result-card { background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.06); border-radius: var(--radius-lg); padding: 1.25rem; }
.rc-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; }
.rc-site { font-family: var(--font-display); font-size: 13px; font-weight: 600; }
.rc-step { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }
.rc-bars { margin-bottom: 1rem; }
.rc-bar-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.rc-bar-label { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); width: 70px; }
.rc-bar-track { flex: 1; height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
.rc-bar-fill { height: 100%; border-radius: 3px; transition: width 0.8s ease; }
.rc-bar-fill.baseline { background: var(--ash); }
.rc-bar-fill.emn { background: var(--canopy); }
.rc-bar-val { font-size: 11px; font-family: var(--font-mono); width: 45px; text-align: right; }
.rc-delta { display: flex; align-items: center; justify-content: space-between; padding-top: 8px; border-top: 1px solid rgba(255,255,255,0.04); }
.rc-delta-label { font-size: 11px; color: var(--text-muted); font-family: var(--font-mono); }
.rc-delta-val { font-family: var(--font-mono); font-size: 14px; font-weight: 700; }
.rc-delta-val.pos { color: var(--canopy); }
.rc-delta-val.neg { color: var(--fire); }
.rc-verdict { font-size: 10px; margin-top: 4px; font-family: var(--font-mono); }
.rc-verdict.pass { color: var(--canopy); }
.rc-verdict.fail { color: var(--fire); }

.verdict-box { padding: 2rem; border-radius: var(--radius-xl); margin-bottom: 2rem; }
.verdict-box.pass { background: rgba(79,193,138,0.1); border: 1px solid rgba(79,193,138,0.25); }
.verdict-box.fail { background: rgba(224,123,63,0.1); border: 1px solid rgba(224,123,63,0.25); }
.verdict-title { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; margin-bottom: 0.5rem; }
.verdict-body { font-size: 14px; color: var(--ash); line-height: 1.7; }

.recovery-plot-wrap { background: rgba(0,0,0,0.3); border-radius: var(--radius-lg); padding: 1.5rem; }
.rp-title { font-family: var(--font-display); font-size: 14px; font-weight: 600; margin-bottom: 1rem; }

/* ======================== ABOUT ======================== */
.about-inner { display: grid; grid-template-columns: 1fr 380px; gap: 4rem; align-items: start; }
.about-title { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 1.25rem; color: var(--white); }
.about-body { font-size: 14px; color: var(--ash); line-height: 1.75; margin-bottom: 1rem; }
.about-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 1.5rem; }
.about-link { padding: 7px 14px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.1); color: var(--ash); text-decoration: none; font-size: 12px; font-family: var(--font-mono); transition: all 0.2s; }
.about-link:hover { border-color: var(--canopy); color: var(--canopy); }
.cite-box { background: rgba(0,0,0,0.4); border-radius: var(--radius-lg); border: 1px solid rgba(255,255,255,0.06); padding: 1.5rem; }
.cite-label { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); letter-spacing: 0.12em; margin-bottom: 1rem; }
.cite-text { font-family: var(--font-mono); font-size: 12px; color: var(--ash); line-height: 1.7; margin-bottom: 1.25rem; white-space: pre-wrap; }
.cite-copy { padding: 7px 16px; border-radius: 8px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); color: var(--ash); font-size: 12px; cursor: pointer; font-family: var(--font-mono); transition: all 0.2s; }
.cite-copy:hover { background: rgba(79,193,138,0.12); border-color: rgba(79,193,138,0.3); color: var(--canopy); }

/* ======================== FOOTER ======================== */
footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 1.5rem 2rem;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; gap: 2rem; flex-wrap: wrap;
  justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-muted);
}

/* ======================== RESPONSIVE ======================== */
@media (max-width: 900px) {
  .network-layout, .model-layout, .about-inner { grid-template-columns: 1fr; }
  .hero-stat-strip { flex-wrap: wrap; }
  .hstat { min-width: 50%; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .section { padding: 60px 1rem; }
  .hero { padding: 100px 1rem 0; }
  .arch-diagram { flex-direction: column; }
  .arch-arrow { transform: rotate(90deg); align-self: center; }
}