:root {
  --bg: #0D0D0F;
  --bg-secondary: #131317;
  --bg-card: #1A1A1F;
  --fg: #F0F2F5;
  --fg-secondary: #8A9099;
  --fg-muted: #4A5059;
  --accent: #00E5C8;
  --accent-dim: rgba(0, 229, 200, 0.08);
  --accent-glow: rgba(0, 229, 200, 0.15);
  --silver: #C8D0D8;
  --border: rgba(255, 255, 255, 0.07);
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* HEADER */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(13, 13, 15, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.2em;
  color: var(--fg);
}

.header-nav {
  display: flex;
  gap: 32px;
}

.header-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-secondary);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.header-nav a:hover { color: var(--accent); }

/* HERO */
.hero {
  min-height: 100vh;
  padding: 120px 40px 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: var(--accent);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 18px;
  font-weight: 300;
  color: var(--fg-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 48px;
}

.hero-pillars {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pillar {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.pillar-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--accent-dim);
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 2px;
}

.pillar-desc {
  font-size: 13px;
  color: var(--fg-secondary);
}

/* Hero Visual */
.hero-visual {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 480px;
  height: 480px;
  z-index: 1;
}

.glow-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 200, 0.6) 0%, rgba(0, 229, 200, 0.1) 60%, transparent 100%);
}

.glow-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 200, 0.12);
}

.glow-ring-1 {
  width: 260px;
  height: 260px;
  animation: pulse 4s ease-in-out infinite;
}

.glow-ring-2 {
  width: 420px;
  height: 420px;
  animation: pulse 4s ease-in-out infinite 1s;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.03); }
}

/* MANIFESTO */
.manifesto {
  padding: 100px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.manifesto-inner {
  max-width: 800px;
  margin: 0 auto;
}

.manifesto-label, .section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.manifesto-quote {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--fg);
  margin-bottom: 36px;
}

.manifesto-body {
  font-size: 17px;
  color: var(--fg-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

/* PROTOCOLS */
.protocols {
  padding: 100px 40px;
}

.protocols-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.protocols-header {
  margin-bottom: 60px;
}

.section-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--fg);
  margin-top: 8px;
}

.protocol-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.protocol-card {
  background: var(--bg-card);
  padding: 40px 36px;
  position: relative;
  border: 1px solid var(--border);
  transition: border-color 0.3s;
}

.protocol-card:hover {
  border-color: rgba(0, 229, 200, 0.3);
}

.protocol-number {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 24px;
}

.protocol-visual {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
}

.protocol-icon-led {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 200, 0.3) 0%, transparent 70%);
  box-shadow: 0 0 30px rgba(0, 229, 200, 0.2), inset 0 0 20px rgba(0, 229, 200, 0.1);
  border: 1px solid rgba(0, 229, 200, 0.3);
}

.protocol-icon-current {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 200, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
}

.protocol-icon-current::after {
  content: '';
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
}

.protocol-icon-derma {
  width: 60px;
  height: 60px;
  position: relative;
}

.protocol-icon-derma::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--accent);
  background: var(--accent-dim);
}

.protocol-name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 12px;
}

.protocol-desc {
  font-size: 14px;
  color: var(--fg-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.protocol-tags {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.protocol-tags li {
  font-size: 12px;
  color: var(--fg-muted);
  padding-left: 14px;
  position: relative;
}

.protocol-tags li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

/* ETHOS */
.ethos {
  padding: 100px 40px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.ethos-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.ethos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 60px;
}

.ethos-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--fg);
  margin-top: 12px;
  margin-bottom: 24px;
}

.ethos-body {
  font-size: 16px;
  color: var(--fg-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.ethos-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 6px;
  line-height: 1;
}

.stat-label {
  font-size: 13px;
  color: var(--fg-secondary);
  line-height: 1.4;
}

.ethos-quote {
  padding: 40px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  text-align: center;
}

.ethos-quote p {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.02em;
}

/* CLOSING */
.closing {
  padding: 120px 40px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.closing-visual {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  pointer-events: none;
}

.closing-ring {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 200, 0.06);
  animation: pulse 5s ease-in-out infinite;
}

.closing-inner {
  position: relative;
  z-index: 2;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 4.5vw, 48px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--fg);
  margin-bottom: 28px;
}

.closing-body {
  font-size: 18px;
  color: var(--fg-secondary);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.closing-tech-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--accent);
  opacity: 0.7;
}

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--fg);
}

.footer-tagline {
  font-size: 13px;
  color: var(--fg-muted);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--fg-muted);
}

.footer-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--fg-muted);
}

.footer-copy {
  font-size: 12px;
  color: var(--fg-muted);
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .site-header { padding: 0 24px; }
  .header-nav { display: none; }
  .hero { padding: 100px 24px 60px; }
  .hero-visual { display: none; }
  .hero-headline { font-size: 42px; }
  .protocol-grid { grid-template-columns: 1fr; }
  .ethos-grid { grid-template-columns: 1fr; gap: 40px; }
  .ethos-stats { grid-template-columns: 1fr 1fr; }
  .manifesto, .protocols, .ethos { padding: 60px 24px; }
  .closing { padding: 80px 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-legal { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-pillars { gap: 20px; }
  .ethos-stats { grid-template-columns: 1fr; gap: 24px; }
}