/* ── RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg:        #080c10;
  --bg2:       #0d1117;
  --bg3:       #111820;
  --surface:   #141d27;
  --border:    rgba(255,255,255,0.07);
  --mars:      #c8451a;
  --mars-dim:  #7a2a10;
  --amber:     #e8a04a;
  --amber-dim: #7d5020;
  --text:      #dce4ef;
  --text-dim:  #6b7c91;
  --text-mid:  #9daec0;
  --mono:      'JetBrains Mono', monospace;
  --display:   'Oxanium', sans-serif;
  --serif:     'Source Serif 4', Georgia, serif;
  --radius:    8px;
  --glow-mars: 0 0 40px rgba(200,69,26,0.25);
}
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.7;
  overflow-x: hidden;
}
::selection { background: rgba(200,69,26,0.35); color: #fff; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
  height: 60px;
  background: rgba(8,12,16,0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--mars);
  text-decoration: none;
}
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--amber); }

/* ── HERO ── */
#hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  text-align: center;
}
#mars-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
}
.hero-vignette {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 50%, transparent 20%, rgba(8,12,16,0.7) 70%, var(--bg) 100%);
  pointer-events: none;
}
.hero-content {
  position: relative; z-index: 2;
  width: 100%;
  padding: 0 24px;
  text-align: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mars);
  border: 1px solid rgba(200,69,26,0.4);
  background: rgba(200,69,26,0.08);
  padding: 6px 16px;
  border-radius: 2px;
  margin-bottom: 28px;
}
h1 {
  font-family: var(--display);
  font-size: clamp(24px, 4.8vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 20px;
  white-space: nowrap;
  text-align: center;
}
h1 span { color: var(--mars); }
.tagline {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(15px, 2vw, 19px);
  color: var(--text-mid);
  max-width: 580px;
  margin: 0 auto 36px;
}
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 13px 28px;
  border-radius: 3px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-primary {
  background: var(--mars);
  color: #fff;
  border: 1px solid var(--mars);
}
.btn-primary:hover {
  background: #d94e1e;
  box-shadow: var(--glow-mars);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--text-mid);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--amber); color: var(--amber); }
.hero-stats {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 48px; z-index: 2;
}
.hero-stat {
  text-align: center;
}
.hero-stat-val {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--amber);
}
.hero-stat-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ── SECTIONS ── */
.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 96px 48px;
}
.section-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mars);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--display);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 28px;
  line-height: 1.1;
}
.section-body {
  font-size: 18px;
  line-height: 1.75;
  color: var(--text-mid);
  max-width: 760px;
}
.section-body strong { color: var(--text); font-weight: 600; }
.divider {
  max-width: 1080px;
  margin: 0 auto;
  border: none;
  border-top: 1px solid var(--border);
}

/* ── ABOUT LAYOUT ── */
#about .about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 48px;
}
.about-item {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color 0.2s;
}
.about-item:hover { border-color: rgba(200,69,26,0.3); }
.about-item-icon {
  font-size: 26px;
  margin-bottom: 12px;
}
.about-item h4 {
  font-family: var(--display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 8px;
}
.about-item p {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.6;
}

/* ── PIPELINE ── */
#pipeline { background: var(--bg2); }
#pipeline .inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 96px 48px;
}
.pipeline-diagram {
  margin-top: 48px;
  position: relative;
}
/* Main flow row */
.pipeline-main-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.pipeline-main-flow::after {
  content: '';
  position: absolute;
  top: 44px;
  left: calc(12.5% + 28px);
  right: calc(12.5% + 28px);
  height: 2px;
  background: linear-gradient(90deg, var(--mars-dim), var(--mars), var(--mars-dim));
  z-index: 0;
}
.p-step {
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  padding: 0 12px;
  position: relative; z-index: 1;
}
.p-node {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--mars-dim);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 14px;
  position: relative;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.p-node:hover {
  border-color: var(--mars);
  box-shadow: var(--glow-mars);
}
.p-node-num {
  position: absolute;
  top: -6px; right: -6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--mars);
  color: #fff;
  font-family: var(--mono);
  font-size: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 500;
}
.p-name {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 6px;
}
.p-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.45;
}
/* Critic section - below main flow */
.critic-row {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.critic-connects {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  width: calc(75% - 24px);
  height: 28px;
  position: relative;
}
.critic-line {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber-dim), var(--amber), var(--amber-dim), transparent);
}
.critic-arrow-down {
  position: absolute;
  bottom: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid var(--amber);
}
.critic-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 20px 40px;
  background: rgba(232,160,74,0.06);
  border: 1px solid rgba(232,160,74,0.25);
  border-radius: var(--radius);
  position: relative;
}
.critic-badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  background: rgba(232,160,74,0.12);
  padding: 3px 10px;
  border-radius: 2px;
  margin-bottom: 8px;
}
.critic-name {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.critic-desc {
  font-size: 13px;
  color: var(--text-dim);
}
.critic-model {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--amber);
  margin-top: 6px;
}
.revision-loop {
  margin-top: 20px;
  display: flex; align-items: center; gap: 10px;
  background: rgba(200,69,26,0.06);
  border: 1px dashed rgba(200,69,26,0.3);
  border-radius: var(--radius);
  padding: 10px 20px;
}
.revision-loop-icon { font-size: 16px; }
.revision-loop p {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.revision-loop p strong { color: var(--mars); }

/* ── CAPABILITIES ── */
.caps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.cap-card {
  padding: 28px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.2s;
}
.cap-card:hover {
  border-color: rgba(200,69,26,0.35);
  transform: translateY(-2px);
}
.cap-icon { font-size: 20px; margin-bottom: 12px; }
.cap-stat {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.cap-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ── DEMO STATS ── */
#demo { background: var(--bg3); }
#demo .inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 48px;
}
.demo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.demo-stat-card {
  text-align: center;
  padding: 32px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.demo-stat-val {
  font-family: var(--display);
  font-size: 36px;
  font-weight: 800;
  color: var(--amber);
  line-height: 1;
  margin-bottom: 8px;
}
.demo-stat-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ── TECH ── */
.tech-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.tech-group-title {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.tech-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.tech-tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-mid);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 5px 12px;
  border-radius: 3px;
  transition: border-color 0.2s, color 0.2s;
}
.tech-tag:hover { border-color: var(--mars); color: #fff; }
.tech-tag.accent { border-color: rgba(200,69,26,0.4); color: var(--mars); }

/* ── ROADMAP ── */
#roadmap { background: var(--bg2); }
#roadmap .inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 96px 48px;
}
.roadmap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}
.roadmap-col-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.roadmap-col-label.done { color: var(--mars); }
.roadmap-col-label.next { color: var(--amber); }
.roadmap-item {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.roadmap-item:last-child { border-bottom: none; }
.roadmap-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}
.roadmap-dot.done { background: var(--mars); }
.roadmap-dot.next { background: transparent; border: 1px dashed var(--amber); }
.roadmap-text {
  font-size: 15px;
  color: var(--text-mid);
}
.roadmap-text strong { color: var(--text); font-weight: 600; }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
}
.footer-left p {
  font-family: var(--display);
  font-size: 13px;
  color: var(--text-dim);
}
.footer-left p span { color: var(--mars); }
.footer-links { display: flex; gap: 24px; }
.footer-links a {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--amber); }

/* ── REVEAL ANIMATION ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  .section { padding: 64px 24px; }
  #pipeline .inner, #demo .inner, #roadmap .inner { padding: 64px 24px; }
  footer { flex-direction: column; gap: 16px; padding: 32px 24px; }
  #about .about-grid { grid-template-columns: 1fr; }
  .caps-grid { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-groups { grid-template-columns: 1fr; }
  .roadmap-grid { grid-template-columns: 1fr; }
  .pipeline-main-flow { grid-template-columns: 1fr 1fr; }
  .pipeline-main-flow::after { display: none; }
  .hero-stats { gap: 24px; }
}