/* === ORBITMIND THEME === */
:root {
  --bg: #080c10;
  --surface: #0d1219;
  --surface-2: #131b25;
  --accent: #00e5cc;
  --accent-dim: rgba(0,229,204,0.12);
  --text: #e8f0f8;
  --text-muted: #7a8fa3;
  --text-dim: #4a5d6e;
  --border: rgba(255,255,255,0.06);
  --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(--text);
  font-family: var(--font-body);
  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: 0 clamp(1.5rem, 5vw, 4rem);
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(8,12,16,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-family: var(--font-body);
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #00e87a;
  box-shadow: 0 0 8px rgba(0,232,122,0.5);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* === HERO === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px clamp(1.5rem, 5vw, 4rem) 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(0,229,204,0.04) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(0,100,220,0.03) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0,229,204,0.2);
  padding: 0.375rem 0.875rem;
  border-radius: 2rem;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.hero-title-accent {
  color: var(--accent);
  display: block;
}
.hero-lede {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 480px;
  font-weight: 300;
}

/* === ORBIT VISUAL === */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.orbit-display {
  position: relative;
  width: 340px;
  height: 340px;
}
.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(0,229,204,0.08);
}
.orbit-ring-1 {
  inset: 0;
  border-style: dashed;
  animation: spin 20s linear infinite;
}
.orbit-ring-2 {
  inset: 50px;
  border-color: rgba(0,229,204,0.15);
  animation: spin 12s linear infinite reverse;
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.orbit-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: var(--surface);
  border: 1px solid rgba(0,229,204,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 24px rgba(0,229,204,0.15);
}
.orbit-node {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid rgba(0,229,204,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
  box-shadow: 0 0 16px rgba(0,229,204,0.1);
}
.node-1 { top: -40px; left: 50%; transform: translateX(-50%); }
.node-2 { right: -40px; top: 50%; transform: translateY(-50%); }
.node-3 { bottom: -40px; left: 50%; transform: translateX(-50%); }
.node-4 { left: -40px; top: 50%; transform: translateY(-50%); }

/* === PROBLEM === */
.problem {
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.problem-inner {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.problem-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  font-weight: 500;
}
.problem-statement p {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 1.65;
  color: var(--text-muted);
  font-weight: 300;
  margin-bottom: 1.5rem;
}
.problem-statement p:last-child {
  color: var(--text);
  font-weight: 400;
}
.problem-statement em {
  color: var(--accent);
  font-style: normal;
  font-weight: 500;
}

/* === FEATURES === */
.features {
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
}
.features-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.features-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
  margin-bottom: 3rem;
  text-align: center;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.feature-card {
  background: var(--surface);
  padding: 2.5rem 2rem;
  transition: background 0.2s;
}
.feature-card:hover {
  background: var(--surface-2);
}
.feature-icon {
  margin-bottom: 1.25rem;
  opacity: 0.85;
}
.feature-title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.feature-desc {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--text-muted);
  font-weight: 300;
}

/* === HOW IT WORKS === */
.how {
  padding: clamp(4rem, 8vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.how-inner {
  max-width: 900px;
  margin: 0 auto;
}
.how-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
  margin-bottom: 3rem;
  text-align: center;
}
.how-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.step {
  flex: 1;
  text-align: center;
  padding: 0 1.5rem;
}
.step-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
  opacity: 0.7;
}
.step h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}
.step p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 300;
}
.step-connector {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, var(--border), rgba(0,229,204,0.3), var(--border));
  margin-top: 1.5rem;
  flex-shrink: 0;
}

/* === CLOSING === */
.closing {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.5rem, 5vw, 4rem);
}
.closing-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.closing-stat {
  margin-bottom: 3rem;
}
.stat-number {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.05em;
  line-height: 1;
  opacity: 0.9;
}
.stat-label {
  font-size: 0.875rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  margin-top: 0.75rem;
}
.closing-statement {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 300;
  max-width: 640px;
  margin: 0 auto;
}

/* === FOOTER === */
.footer {
  padding: 2.5rem clamp(1.5rem, 5vw, 4rem);
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text-muted);
}
.footer-copy {
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-lede {
    max-width: 100%;
    margin: 0 auto;
  }
  .hero-label {
    margin: 0 auto 1.5rem;
  }
  .hero-visual {
    order: -1;
  }
  .orbit-display {
    width: 240px;
    height: 240px;
  }
  .orbit-ring-2 {
    inset: 35px;
  }
  .orbit-node {
    width: 62px;
    height: 62px;
    font-size: 0.6rem;
  }
  .node-1 { top: -28px; }
  .node-2 { right: -28px; }
  .node-3 { bottom: -28px; }
  .node-4 { left: -28px; }
  .how-steps {
    flex-direction: column;
    gap: 2rem;
    align-items: center;
  }
  .step-connector {
    width: 1px;
    height: 32px;
    background: linear-gradient(180deg, var(--border), rgba(0,229,204,0.3), var(--border));
    margin-top: 0;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stat-number {
    font-size: 4rem;
  }
}