/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #F8F5F0;
  --bg-dark: #F0EDE7;
  --fg: #1A1A1A;
  --fg-muted: #6B6560;
  --accent: #FF4D00;
  --accent-light: rgba(255, 77, 0, 0.08);
  --border: rgba(26, 26, 26, 0.12);

  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Instrument Sans', system-ui, sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 7rem;

  --radius: 12px;
  --radius-sm: 6px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* === NAV === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 400;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 8rem 4rem 5rem;
  max-width: 1300px;
  margin: 0 auto;
  position: relative;
}

.hero-bg {
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  width: 55%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.hero-ripple {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 60vw;
  height: 60vw;
  max-width: 700px;
  max-height: 700px;
  border-radius: 50%;
  border: 1px solid rgba(255, 77, 0, 0.12);
  background: radial-gradient(circle at 60% 40%, rgba(255, 77, 0, 0.06) 0%, transparent 70%);
}

.hero-ripple-2 {
  width: 40vw;
  height: 40vw;
  max-width: 450px;
  max-height: 450px;
  right: 10%;
  border-color: rgba(255, 77, 0, 0.07);
}

.hero-ripple-3 {
  width: 25vw;
  height: 25vw;
  max-width: 280px;
  max-height: 280px;
  right: 18%;
  border-color: rgba(255, 77, 0, 0.05);
  background: radial-gradient(circle at 60% 40%, rgba(255, 77, 0, 0.08) 0%, transparent 60%);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
}

.label-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1.75rem;
  color: var(--fg);
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-lede {
  font-size: 1.125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 2.5rem;
}

.hero-platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.platform-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.375rem 0.875rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(8px);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--fg-muted);
  transition: border-color 0.2s, color 0.2s;
}

.platform-pill:hover {
  border-color: var(--accent);
  color: var(--fg);
}

/* === SIGNAL DIAGRAM === */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.signal-diagram {
  position: relative;
  width: 400px;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.signal-center {
  position: relative;
  z-index: 3;
  width: 72px;
  height: 72px;
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.signal-pulse {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  animation: ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% { transform: scale(1.8); opacity: 0; }
}

.signal-rings {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.signal-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 77, 0, 0.15);
  animation: expand-ring 4s ease-out infinite;
}

.signal-ring-1 { width: 160px; height: 160px; animation-delay: 0s; }
.signal-ring-2 { width: 260px; height: 260px; animation-delay: 0.8s; }
.signal-ring-3 { width: 360px; height: 360px; animation-delay: 1.6s; }

@keyframes expand-ring {
  0% { transform: scale(0.7); opacity: 0.8; }
  100% { transform: scale(1); opacity: 0; }
}

.signal-nodes {
  position: absolute;
  inset: 0;
}

.signal-node {
  position: absolute;
  width: 36px;
  height: 36px;
  background: white;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-muted);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  animation: float-node 4s ease-in-out infinite;
}

.signal-node-1 { top: 12px; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.signal-node-2 { top: 50%; right: 8px; transform: translateY(-50%); animation-delay: 0.7s; }
.signal-node-3 { bottom: 12px; right: 24px; animation-delay: 1.4s; }
.signal-node-4 { bottom: 12px; left: 24px; animation-delay: 2.1s; }
.signal-node-5 { top: 50%; left: 8px; transform: translateY(-50%); animation-delay: 2.8s; }

@keyframes float-node {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* === PROOF STATS === */
.proof {
  background: var(--fg);
  color: white;
  padding: 4rem 4rem;
}

.proof-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

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

.proof-number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 400;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.proof-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
  max-width: 160px;
  line-height: 1.4;
}

.proof-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.12);
}

/* === MANIFESTO === */
.manifesto {
  padding: 7rem 4rem;
  background: var(--bg);
}

.manifesto-inner {
  max-width: 740px;
  margin: 0 auto;
}

.manifesto-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.manifesto-headline {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 2rem;
  color: var(--fg);
}

.manifesto-body p {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.manifesto-quote {
  margin-top: 3rem;
  padding: 2rem 2.5rem;
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.manifesto-quote blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.125rem;
  color: var(--fg);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.manifesto-quote cite {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  font-style: normal;
}

/* === OUTCOMES === */
.outcomes {
  padding: 7rem 4rem;
  background: var(--bg-dark);
}

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

.outcomes-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.outcomes-headline {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 3.5rem;
  color: var(--fg);
  max-width: 540px;
}

.outcomes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.outcome-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.outcome-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.outcome-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.outcome-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.625rem;
  color: var(--fg);
}

.outcome-card p {
  font-size: 0.9375rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* === CLOSING === */
.closing {
  padding: 7rem 4rem;
  background: var(--fg);
  color: white;
  text-align: center;
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

.closing-visual {
  position: absolute;
  top: -3rem;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 120px;
}

.closing-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 77, 0, 0.3);
  animation: spin-ring 8s linear infinite;
}

.closing-ring-2 {
  inset: 15px;
  border-color: rgba(255, 77, 0, 0.2);
  animation-duration: 6s;
  animation-direction: reverse;
}

.closing-ring-3 {
  inset: 30px;
  border-color: rgba(255, 77, 0, 0.15);
  animation-duration: 4s;
}

.closing-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
}

@keyframes spin-ring {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.closing-headline {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  color: white;
  padding-top: 5rem;
}

.closing-body {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.closing-note {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.4);
}

/* === FOOTER === */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  padding: 2rem 4rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--fg);
}

.footer-tagline {
  font-size: 0.8125rem;
  color: var(--fg-muted);
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 7rem 2rem 4rem;
    text-align: center;
  }

  .hero-bg {
    width: 100%;
    top: 0;
    transform: none;
  }

  .hero-lede { margin-left: auto; margin-right: auto; }
  .hero-platforms { justify-content: center; }
  .hero-visual { display: none; }

  .proof { padding: 3rem 2rem; }
  .proof-inner { flex-direction: column; gap: 2rem; }
  .proof-divider { width: 60px; height: 1px; }

  .manifesto, .outcomes { padding: 5rem 2rem; }

  .outcomes-grid { grid-template-columns: 1fr; }

  .closing { padding: 5rem 2rem; }

  .footer { padding: 1.5rem 2rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 2.5rem; }
  .proof-number { font-size: 2.5rem; }
  .outcomes-grid { gap: 1rem; }
}