/* === BASE === */
:root {
  --bg: #0A0C10;
  --surface: #111318;
  --surface-2: #161920;
  --border: #1E2229;
  --text: #F0F2F5;
  --text-muted: #6B7280;
  --accent-cyan: #00D4FF;
  --accent-violet: #A855F7;
  --accent-green: #00FF88;
  --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; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* === NAV === */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  background: rgba(10, 12, 16, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(30, 34, 41, 0.6);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 48px 80px;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(0, 212, 255, 0.04) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(168, 85, 247, 0.03) 0%, transparent 70%),
    var(--bg);
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 80px;
  align-items: center;
}

/* === ORB === */
.orb-container {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto;
}

.orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--accent-cyan);
  animation: orbPulse 3s ease-in-out infinite;
}
.orb-ring-1 { animation-delay: 0s; }
.orb-ring-2 { inset: -20px; opacity: 0.5; animation-delay: 0.5s; }
.orb-ring-3 { inset: -40px; opacity: 0.25; animation-delay: 1s; }

@keyframes orbPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.6; }
}

.orb-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 90px;
  height: 90px;
  background: var(--accent-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.4), 0 0 80px rgba(0, 212, 255, 0.15);
}

.orb-pulse {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 90px;
  height: 90px;
  background: var(--accent-cyan);
  border-radius: 50%;
  animation: corePulse 3s ease-in-out infinite;
}

@keyframes corePulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.3; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 0; }
}

.orb-caption {
  text-align: center;
  margin-top: 20px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.lang-flags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.lang-tag {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
}

.lang-sep {
  color: var(--border);
  font-size: 14px;
}

/* === HERO TEXT === */
.hero-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 20px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 28px;
}

.headline-accent {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* === FLOW === */
.flow {
  padding: 100px 48px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-violet);
  margin-bottom: 16px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 56px;
  max-width: 600px;
}

.flow-steps {
  display: flex;
  align-items: center;
  gap: 32px;
  max-width: 900px;
  margin-bottom: 40px;
}

.flow-step {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}

.step-num {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.step-icon {
  margin-bottom: 16px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.flow-arrow {
  flex-shrink: 0;
  opacity: 0.4;
}

.flow-note {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 500px;
  padding-left: 4px;
  border-left: 2px solid var(--accent-cyan);
  padding-left: 16px;
}

/* === FEATURES === */
.features {
  padding: 100px 48px;
}

.features-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}

.feature-primary {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: start;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.04) 0%, transparent 60%);
  border-color: rgba(0, 212, 255, 0.15);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-primary .feature-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 16px;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.feature-body {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.feature-primary .feature-body {
  grid-column: 2;
}

/* === INSIGHT === */
.insight {
  padding: 80px 48px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.insight-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.insight-quote {
  position: relative;
  padding-left: 32px;
}

.quote-mark {
  font-family: var(--font-display);
  font-size: 80px;
  line-height: 1;
  color: var(--accent-cyan);
  opacity: 0.3;
  position: absolute;
  top: -16px;
  left: 0;
}

blockquote {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 16px;
  font-style: normal;
}

cite {
  font-size: 13px;
  color: var(--text-muted);
  font-style: normal;
}

.insight-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-violet);
  margin-bottom: 16px;
}

.insight-body {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* === CLOSING === */
.closing {
  padding: 120px 48px;
  background:
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 70%),
    var(--bg);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.closing-orb {
  width: 120px;
  height: 120px;
  margin: 0 auto 48px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.closing-orb-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid var(--accent-cyan);
  animation: orbPulse 4s ease-in-out infinite;
}

.closing-orb-ring::before {
  content: '';
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, 0.25);
  animation: orbPulse 4s ease-in-out infinite 0.5s;
}

.closing-orb-core {
  width: 80px;
  height: 80px;
  background: var(--accent-cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.35);
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--text);
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 480px;
  margin: 0 auto;
}

/* === FOOTER === */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--text-muted);
}

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

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav { padding: 16px 24px; }
  .hero { padding: 100px 24px 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .orb-container { width: 160px; height: 160px; }
  .orb-core { width: 64px; height: 64px; }
  .flow { padding: 60px 24px; }
  .flow-steps { flex-direction: column; gap: 16px; }
  .flow-arrow { transform: rotate(90deg); }
  .features { padding: 60px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-primary { grid-template-columns: 1fr; }
  .insight { padding: 60px 24px; }
  .insight-inner { grid-template-columns: 1fr; gap: 40px; }
  .closing { padding: 80px 24px; }
  .footer { padding: 32px 24px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .hero-stats { flex-wrap: wrap; }
}