:root {
  --bg: #050d1a;
  --bg2: #071224;
  --surface: #0a1930;
  --border: rgba(255,255,255,0.08);
  --accent: #f07020;
  --accent2: #1a5fa8;
  --text: #eef2f7;
  --muted: #6b88a8;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --sans: 'DM Sans', sans-serif;
  --mono: 'Space Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 4rem;
  background: rgba(5,13,26,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-logo-img {
  height: 46px;
  width: auto;
  cursor: pointer;
  filter: drop-shadow(0 0 8px rgba(240,112,32,0.25));
  transition: filter 0.2s;
}
.nav-logo-img:hover { filter: drop-shadow(0 0 14px rgba(240,112,32,0.5)); }
.nav-links { display: flex; gap: 2.5rem; list-style: none; }
.nav-links a {
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.55rem 1.4rem;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.nav-cta:hover { background: var(--accent); color: #fff; }

/* ── PAGES ── */
.page { display: none; }
.page.active { display: block; }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 9rem 4rem 5rem;
  position: relative;
  overflow: hidden;
  gap: 3rem;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 70% at 80% 50%, rgba(240,112,32,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 10% 60%, rgba(26,95,168,0.1) 0%, transparent 55%);
}
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 80%);
}
.hero-content { position: relative; z-index: 2; }
.hero-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.8rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 5.5vw, 5.5rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.01em;
  opacity: 0;
  animation: fadeUp 0.9s 0.4s forwards;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-sub {
  margin-top: 1.8rem;
  font-size: 1rem;
  color: var(--muted);
  max-width: 500px;
  font-weight: 300;
  line-height: 1.75;
  opacity: 0;
  animation: fadeUp 0.9s 0.6s forwards;
}
.hero-actions {
  display: flex;
  gap: 1.2rem;
  margin-top: 2.8rem;
  opacity: 0;
  animation: fadeUp 0.9s 0.8s forwards;
}
.btn-primary {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--accent);
  color: #fff;
  padding: 0.85rem 2rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(240,112,32,0.3);
  transition: opacity 0.2s, transform 0.2s;
}
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-ghost {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0.85rem 2rem;
  transition: border-color 0.2s;
  cursor: pointer;
  background: none;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.3); }
.hero-img-wrap {
  position: relative;
  z-index: 2;
  opacity: 0;
  animation: fadeIn 1.2s 0.6s forwards;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-img-wrap img {
  width: 100%;
  max-width: 640px;
  border-radius: 4px;
  filter: drop-shadow(0 8px 40px rgba(240,112,32,0.15));
}
.hero-stat-row {
  display: flex;
  gap: 3rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border);
  opacity: 0;
  animation: fadeUp 0.9s 1s forwards;
}
.stat-item .num {
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 300;
  color: var(--accent);
  display: block;
}
.stat-item .label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-family: var(--mono);
}

/* ── MOLECULES SECTION ── */
.molecules-section {
  padding: 6rem 4rem;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.mol-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: 3rem;
  align-items: center;
}
.mol-img-block { display: flex; justify-content: center; align-items: center; }
.mol-img-block img {
  width: 100%;
  max-width: 460px;
  filter: drop-shadow(0 0 28px rgba(240,112,32,0.25));
  transition: filter 0.4s;
}
.mol-img-block img:hover { filter: drop-shadow(0 0 45px rgba(240,112,32,0.5)); }
.mol-img-block img.blue-img { filter: drop-shadow(0 0 28px rgba(26,95,168,0.4)); }
.mol-img-block img.blue-img:hover { filter: drop-shadow(0 0 45px rgba(26,95,168,0.65)); }

.mol-text h2 {
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}
.mol-text h2 em { font-style: italic; color: var(--accent); }
.mol-text p { font-size: 0.95rem; color: rgba(238,242,247,0.7); line-height: 1.8; margin-bottom: 1rem; }

/* ── SECTION COMMON ── */
section { padding: 7rem 4rem; position: relative; }
.section-tag {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
h2.section-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 300;
  line-height: 1.15;
  max-width: 680px;
}
h2.section-title em { font-style: italic; color: var(--accent); }

/* ── MISSION ── */
.mission { background: var(--bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.mission-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; margin-top: 4rem; align-items: start; }
.mission-text p { margin-bottom: 1.5rem; color: rgba(238,242,247,0.7); font-size: 0.97rem; line-height: 1.8; }
.mission-text p:first-child { font-family: var(--serif); font-size: 1.3rem; font-style: italic; color: var(--text); line-height: 1.6; }
.pillar { padding: 1.6rem 0; border-bottom: 1px solid var(--border); }
.pillar:first-child { border-top: 1px solid var(--border); }
.pillar-num { font-family: var(--mono); font-size: 0.62rem; color: var(--accent); letter-spacing: 0.15em; margin-bottom: 0.4rem; }
.pillar h3 { font-family: var(--serif); font-size: 1.1rem; font-weight: 400; margin-bottom: 0.35rem; }
.pillar p { font-size: 0.83rem; color: var(--muted); line-height: 1.6; }

/* ── VISION ── */
.vision-section { padding: 7rem 4rem; text-align: center; border-bottom: 1px solid var(--border); }
.vision-statement { text-align: center; max-width: 900px; margin: 0 auto; }
.vision-statement h2 { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 300; line-height: 1.2; margin-bottom: 2.5rem; }
.bold-stacks { display: flex; flex-direction: column; gap: 0; margin-top: 3rem; }
.bold-stacks span {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 300;
  font-style: italic;
  color: rgba(238,242,247,0.45);
  transition: color 0.3s;
  cursor: default;
  border-top: 1px solid var(--border);
  padding: 1.2rem 0;
}
.bold-stacks span:hover { color: var(--text); }
.bold-stacks span:first-child { color: var(--text); }

/* ── TECHNOLOGY ── */
.tech-hero {
  padding: 10rem 4rem 5rem;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.tech-hero-img img {
  width: 100%;
  max-width: 520px;
  filter: drop-shadow(0 0 35px rgba(26,95,168,0.35));
  transition: filter 0.4s;
}
.tech-hero-img img:hover { filter: drop-shadow(0 0 55px rgba(26,95,168,0.55)); }

.platform-card {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
  padding: 5rem 4rem;
  transition: background 0.3s;
  position: relative;
  overflow: hidden;
}
.platform-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s;
}
.platform-card:hover::before { transform: scaleY(1); }
.platform-card:hover { background: rgba(240,112,32,0.02); }
.platform-index { display: flex; flex-direction: column; gap: 0.5rem; }
.platform-num { font-family: var(--mono); font-size: 0.62rem; color: var(--accent); letter-spacing: 0.2em; }
.platform-name { font-family: var(--serif); font-size: 1.9rem; font-weight: 300; line-height: 1.2; margin-top: 0.5rem; }
.platform-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  padding: 0.22rem 0.65rem;
  margin-top: 1rem;
  font-weight: 700;
}
.platform-content { padding-left: 3rem; }
.platform-img { margin-top: 2.5rem; display: flex; justify-content: flex-start; }
.platform-img img {
  max-height: 200px;
  width: auto;
  filter: drop-shadow(0 0 22px rgba(240,112,32,0.25));
  transition: filter 0.4s;
}
.platform-img img:hover { filter: drop-shadow(0 0 38px rgba(240,112,32,0.5)); }
.platform-img img.blue-img { filter: drop-shadow(0 0 22px rgba(26,95,168,0.4)); }
.platform-img img.blue-img:hover { filter: drop-shadow(0 0 38px rgba(26,95,168,0.65)); }
.platform-desc { font-size: 0.97rem; color: rgba(238,242,247,0.7); margin-bottom: 1.8rem; line-height: 1.8; max-width: 580px; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; }
.feature-list li { font-size: 0.83rem; color: var(--muted); padding-left: 1.2rem; position: relative; }
.feature-list li::before { content: '\2192'; position: absolute; left: 0; color: var(--accent); font-size: 0.75rem; }

/* ── COMPARISON ── */
.comparison { background: var(--bg2); padding: 6rem 4rem; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; margin-top: 4rem; }
.compare-col { padding: 2.5rem; border: 1px solid var(--border); }
.compare-col.highlight { border-color: var(--accent); background: rgba(240,112,32,0.03); }
.compare-col h3 { font-family: var(--mono); font-size: 0.67rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); margin-bottom: 2rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.compare-col.highlight h3 { color: var(--accent); }
.compare-col ul { list-style: none; display: flex; flex-direction: column; gap: 1rem; }
.compare-col ul li { font-family: var(--serif); font-size: 1.05rem; font-weight: 300; color: rgba(238,242,247,0.6); padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.compare-col.highlight ul li { color: var(--text); }

/* ── PRINCIPLES ── */
.principles-section { padding: 6rem 4rem; border-bottom: 1px solid var(--border); }

/* ── ABOUT ── */
.about-hero {
  padding: 10rem 4rem 5rem;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-hero-body { margin-top: 1.5rem; font-size: 0.97rem; color: rgba(238,242,247,0.65); max-width: 500px; line-height: 1.8; }
.about-logo-block { display: flex; justify-content: center; align-items: center; }
.logo-mark-img {
  max-width: 280px;
  width: 100%;
  filter: drop-shadow(0 0 40px rgba(240,112,32,0.35));
  transition: filter 0.4s;
}
.logo-mark-img:hover { filter: drop-shadow(0 0 65px rgba(240,112,32,0.55)); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; padding: 6rem 4rem; border-bottom: 1px solid var(--border); }
.about-block h2 { font-family: var(--serif); font-size: 2.1rem; font-weight: 300; margin-bottom: 1.5rem; line-height: 1.2; }
.about-block p { font-size: 0.95rem; color: rgba(238,242,247,0.68); line-height: 1.8; margin-bottom: 1rem; }

/* ── TARGETS ── */
.targets-section { padding: 6rem 4rem; background: var(--bg2); border-bottom: 1px solid var(--border); text-align: center; }
.targets-img-wrap { display: flex; justify-content: center; margin-top: 2rem; }
.targets-img-wrap img {
  max-width: 600px;
  width: 100%;
  filter: drop-shadow(0 0 40px rgba(240,112,32,0.3));
  transition: filter 0.4s;
}
.targets-img-wrap img:hover { filter: drop-shadow(0 0 65px rgba(240,112,32,0.55)); }

/* ── PHILOSOPHY ── */
.philosophy-block { padding: 6rem 4rem; background: var(--bg); border-bottom: 1px solid var(--border); }
.phil-quote { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 300; font-style: italic; line-height: 1.25; max-width: 800px; margin: 2.5rem 0; color: var(--accent); }
.phil-body { font-size: 0.95rem; color: rgba(238,242,247,0.62); max-width: 580px; line-height: 1.8; }

/* ── CULTURE GRID ── */
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.culture-item { padding: 2rem; border: 1px solid var(--border); font-size: 0.83rem; color: var(--muted); line-height: 1.6; transition: border-color 0.3s; }
.culture-item:hover { border-color: var(--accent); }
.culture-item strong { display: block; font-family: var(--serif); font-size: 1.05rem; font-weight: 400; color: var(--text); margin-bottom: 0.5rem; }

/* ── CONTACT ── */
.contact-section { padding: 7rem 4rem; text-align: center; background: var(--bg2); border-top: 1px solid var(--border); }
.contact-section h2 { font-family: var(--serif); font-size: clamp(2rem, 4vw, 3rem); font-weight: 300; margin-bottom: 1rem; }
.contact-section p { font-size: 0.9rem; color: var(--muted); margin-bottom: 2.5rem; }
.contact-email { font-family: var(--mono); font-size: 1rem; color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent); padding-bottom: 2px; transition: opacity 0.2s; }
.contact-email:hover { opacity: 0.7; }
.contact-location { display: inline-block; margin-top: 1.5rem; font-size: 0.75rem; font-family: var(--mono); color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }

/* ── FOOTER ── */
footer { padding: 2.5rem 4rem; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); }
.footer-logo { height: 38px; width: auto; filter: drop-shadow(0 0 6px rgba(240,112,32,0.2)); }
.footer-tagline { font-family: var(--mono); font-size: 0.63rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }
footer small { font-size: 0.68rem; color: rgba(107,136,168,0.45); font-family: var(--mono); }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s, transform 0.7s; }
.reveal.visible { opacity: 1; transform: none; }

/* ── MOBILE ── */
@media (max-width: 800px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .hero, .tech-hero, .about-hero { grid-template-columns: 1fr; padding: 8rem 1.5rem 4rem; gap: 2.5rem; }
  .hero-img-wrap, .tech-hero-img { order: -1; }
  .mol-grid, .mission-grid, .about-grid, .compare-grid { grid-template-columns: 1fr; gap: 3rem; }
  section, .molecules-section, .comparison, .philosophy-block, .about-grid,
  .contact-section, footer, .principles-section, .targets-section, .vision-section { padding-left: 1.5rem; padding-right: 1.5rem; }
  .platform-card { grid-template-columns: 1fr; padding: 3rem 1.5rem; }
  .platform-content { padding-left: 0; margin-top: 1.5rem; }
  .culture-grid { grid-template-columns: 1fr 1fr; }
  .hero-stat-row { flex-direction: column; gap: 2rem; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
}