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

:root {
  --bg: #0D0F12;
  --bg-raised: #131519;
  --surface: #1A1D23;
  --surface-2: #22262E;
  --lime: #B8FF4A;
  --lime-dim: rgba(184, 255, 74, 0.12);
  --text: #FAFAF9;
  --text-2: #A8ABB3;
  --text-3: #5E626B;
  --border: rgba(255,255,255,0.07);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 60px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: rgba(13,15,18,0.85);
  backdrop-filter: blur(12px);
}

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

.nav-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav-tagline {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

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

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,255,74,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,255,74,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 50%, rgba(0,0,0,0.6) 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 50%, rgba(0,0,0,0.6) 0%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--lime);
  margin-bottom: 20px;
  font-weight: 500;
}

.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(52px, 6vw, 88px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 460px;
  margin-bottom: 48px;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stat-value {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.hero-stat-label {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.4;
}

/* Hero right visual */
.hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 400px;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(184,255,74,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,255,74,0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  border: 1px solid rgba(184,255,74,0.15);
  animation: gridPulse 4s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { border-color: rgba(184,255,74,0.15); }
  50% { border-color: rgba(184,255,74,0.3); }
}

.signal-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.signal-line {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--lime), transparent);
  animation: signalMove 3s ease-in-out infinite;
  opacity: 0.4;
}

.signal-line-1 { top: 25%; animation-delay: 0s; width: 70%; left: 15%; }
.signal-line-2 { top: 50%; animation-delay: 1s; width: 55%; left: 22%; }
.signal-line-3 { top: 75%; animation-delay: 2s; width: 65%; left: 17%; }

@keyframes signalMove {
  0%, 100% { transform: scaleX(0.3); opacity: 0; }
  50% { transform: scaleX(1); opacity: 0.6; }
}

.data-blocks {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  padding: 40px;
}

.data-block {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  background: rgba(26,29,35,0.8);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  animation: blockSlide 3s ease-in-out infinite;
}

.db-1 { animation-delay: 0s; }
.db-2 { animation-delay: 0.5s; }
.db-3 { animation-delay: 1s; }
.db-4 { animation-delay: 1.5s; }

@keyframes blockSlide {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(6px); }
}

.db-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--lime);
  min-width: 60px;
}

.db-val {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

/* ===== SECTION SHARED ===== */
.section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-3);
  margin-bottom: 24px;
  font-weight: 500;
}

/* ===== PROBLEM ===== */
.problem {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}

.problem-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.problem-card {
  background: var(--bg);
  padding: 40px 36px;
}

.problem-num {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  color: var(--lime);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.problem-card h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.problem-card p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-2);
  font-weight: 300;
}

/* ===== PLAYS ===== */
.plays {
  padding: 100px 40px;
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
}

.plays-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.plays-headline {
  font-family: var(--font-head);
  font-size: clamp(40px, 4.5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.plays-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 560px;
  margin-bottom: 56px;
  font-weight: 300;
}

.plays-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.play-card {
  background: var(--surface);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
}

.play-type {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--lime);
  margin-bottom: 14px;
  font-weight: 500;
}

.play-card h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.play-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-2);
  font-weight: 300;
  flex: 1;
  margin-bottom: 20px;
}

.play-meta {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.play-deliverable {
  font-size: 12px;
  color: var(--text-3);
  font-weight: 400;
}

/* ===== METHOD ===== */
.method {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}

.method-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.method-headline {
  font-family: var(--font-head);
  font-size: clamp(40px, 4.5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 64px;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 64px;
}

.method-step {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step-num {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  color: var(--lime);
  letter-spacing: 0.05em;
}

.step-body h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step-body p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-2);
  font-weight: 300;
}

.method-rule {
  border-left: 2px solid var(--lime);
  padding-left: 24px;
}

.method-rule p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-2);
  font-style: italic;
  font-weight: 300;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 40px;
  border-top: 1px solid var(--border);
}

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.closing h2 {
  font-family: var(--font-head);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.closing > .closing-inner > p:nth-of-type(1) {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-2);
  font-weight: 300;
  margin-bottom: 40px;
}

.closing-bullets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 40px;
  margin-bottom: 48px;
  text-align: left;
}

.closing-bullet {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-2);
  font-weight: 400;
}

.bullet-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  flex-shrink: 0;
}

.closing-statement {
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-2);
  font-weight: 400;
  font-style: italic;
  border-top: 1px solid var(--border);
  padding-top: 40px;
}

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

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

.footer-logo {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  display: block;
  margin-bottom: 6px;
}

.footer-desc {
  font-size: 13px;
  color: var(--text-3);
  font-weight: 300;
}

.footer-bottom {
  font-size: 12px;
  color: var(--text-3);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { max-width: 300px; }
  .hero-stats { gap: 28px; }
  .problem-grid { grid-template-columns: 1fr; }
  .plays-grid { grid-template-columns: 1fr; }
  .method-steps { grid-template-columns: 1fr 1fr; }
  .closing-bullets { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 20px; text-align: center; }
}

@media (max-width: 600px) {
  .hero { padding: 100px 24px 60px; }
  .problem { padding: 60px 24px; }
  .plays { padding: 60px 24px; }
  .method { padding: 60px 24px; }
  .closing { padding: 60px 24px; }
  .footer { padding: 40px 24px; }
  .method-steps { grid-template-columns: 1fr; gap: 32px; }
  .hero-stats { flex-direction: column; gap: 20px; }
}