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

:root {
  --bg: #07090C;
  --surface: #0E1117;
  --surface-2: #141820;
  --border: #1C2130;
  --teal: #00D4AA;
  --teal-dim: rgba(0, 212, 170, 0.15);
  --teal-glow: rgba(0, 212, 170, 0.08);
  --text: #E8EAEE;
  --text-2: #8892A4;
  --text-3: #4E5668;
  --font: 'Outfit', system-ui, sans-serif;
  --mono: 'Space Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  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: 0 32px;
  height: 56px;
  display: flex;
  align-items: center;
  background: rgba(7, 9, 12, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

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

.nav-logo {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
}

.nav-tagline {
  font-size: 12px;
  color: var(--text-2);
  font-family: var(--mono);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 32px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(0, 212, 170, 0.07) 0%, transparent 70%);
}

.hero-grid {
  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 100%);
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-label {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid rgba(0, 212, 170, 0.3);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 36px;
  background: var(--teal-dim);
}

.hero-headline {
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
  background: linear-gradient(160deg, #ffffff 0%, #8892A4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-2);
  line-height: 1.65;
  max-width: 580px;
  margin: 0 auto 56px;
  font-weight: 400;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
}

.hero-stat {
  padding: 20px 40px;
  text-align: center;
}

.hero-stat-value {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 12px;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: var(--mono);
}

.hero-stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* === PROOF === */
.proof {
  padding: 80px 32px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.proof-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.proof-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-3);
  font-family: var(--mono);
  margin-bottom: 40px;
}

.proof-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.proof-logo {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
}

.proof-quote {
  max-width: 600px;
  margin: 0 auto;
}

.proof-quote blockquote {
  font-size: 18px;
  font-style: italic;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.proof-quote cite {
  font-size: 13px;
  color: var(--text-2);
  font-family: var(--mono);
}

/* === SECTION SHARED === */
.section-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 20px;
}

.section-headline {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 60px;
}

/* === HOW === */
.how {
  padding: 120px 32px;
}

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

.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 64px;
}

.how-step {
  background: var(--surface);
  padding: 36px 28px;
}

.how-step-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--teal);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.how-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.how-step p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.6;
}

.how-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  position: relative;
}

.diagram-node {
  display: flex;
  align-items: center;
  gap: 0;
}

.diagram-label {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-2);
  padding: 10px 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  white-space: nowrap;
}

.diagram-arrow, .diagram-arrow-last {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--border), var(--teal));
  position: relative;
}

.diagram-arrow::after, .diagram-arrow-last::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--teal);
}

.diagram-loop {
  position: absolute;
  bottom: -30px;
  right: 40px;
}

.diagram-loop-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--teal);
  letter-spacing: 2px;
  text-transform: uppercase;
  border: 1px solid rgba(0, 212, 170, 0.3);
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--teal-dim);
}

/* === DIFFERENCE === */
.diff {
  padding: 120px 32px;
  background: var(--surface);
}

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

.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 48px;
}

.diff-not, .diff-is {
  background: var(--bg);
  padding: 48px;
}

.diff-not-label, .diff-is-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 32px;
}

.diff-not-list, .diff-is-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.diff-not-title {
  display: block;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 4px;
}

.diff-not-desc {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
}

.diff-is-icon {
  display: inline-block;
  color: var(--teal);
  font-size: 16px;
  margin-right: 12px;
  margin-top: 2px;
  float: left;
}

.diff-is-title {
  display: block;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 4px;
}

.diff-is-desc {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
  overflow: hidden;
}

.diff-metric {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 48px;
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--teal-glow);
}

.diff-metric-value {
  font-family: var(--mono);
  font-size: 48px;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  white-space: nowrap;
}

.diff-metric-text {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.6;
}

/* === AGENTS === */
.agents {
  padding: 120px 32px;
}

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

.agents-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 32px;
}

.agent-card {
  background: var(--surface);
  padding: 36px 28px;
  transition: background 0.2s;
}

.agent-card:hover { background: var(--surface-2); }

.agent-icon {
  font-size: 20px;
  color: var(--teal);
  margin-bottom: 16px;
  line-height: 1;
}

.agent-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.2px;
}

.agent-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
}

.agents-note {
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-3);
  padding: 20px;
}

/* === CLOSING === */
.closing {
  padding: 120px 32px;
  background: var(--surface);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 48px;
}

.closing-visual {
  position: relative;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.closing-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
}

.closing-ring-1 {
  width: 160px;
  height: 160px;
  border-color: rgba(0, 212, 170, 0.3);
  animation: ring-pulse 3s ease-in-out infinite;
}

.closing-ring-2 {
  width: 120px;
  height: 120px;
  border-color: rgba(0, 212, 170, 0.2);
  animation: ring-pulse 3s ease-in-out infinite 0.5s;
}

.closing-ring-3 {
  width: 80px;
  height: 80px;
  border-color: rgba(0, 212, 170, 0.15);
  animation: ring-pulse 3s ease-in-out infinite 1s;
}

@keyframes ring-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.05); opacity: 0.7; }
}

.closing-core {
  position: relative;
  z-index: 1;
}

.closing-core-text {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--teal);
}

.closing-text h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.closing-text p {
  font-size: 18px;
  color: var(--text-2);
}

/* === FOOTER === */
.footer {
  padding: 48px 32px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-logo {
  display: block;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

.footer-desc {
  font-size: 13px;
  color: var(--text-2);
}

.footer-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-3);
  text-align: right;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .how-steps { grid-template-columns: 1fr 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .agents-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { flex-direction: column; gap: 0; }
  .hero-stat-divider { width: 100%; height: 1px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-meta { text-align: center; }
  .diff-metric { flex-direction: column; gap: 16px; }
  .proof-logos { gap: 16px; }
}

@media (max-width: 480px) {
  .how-steps { grid-template-columns: 1fr; }
  .agents-grid { grid-template-columns: 1fr; }
  .hero { padding: 100px 20px 60px; }
  .how, .diff, .agents, .closing { padding: 80px 20px; }
  .how-step, .agent-card { padding: 28px 20px; }
  .diff-not, .diff-is { padding: 36px 24px; }
}