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

:root {
  --bg: #0f0f12;
  --bg-card: #18181f;
  --fg: #f4f4f0;
  --fg-muted: #8a8a96;
  --amber: #f59e0b;
  --amber-dim: #b47600;
  --green: #22c55e;
  --border: rgba(255,255,255,0.08);
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;
}

html { scroll-behavior: smooth; }

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

/* ===== NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(15,15,18,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand { display: flex; align-items: center; gap: 8px; }
.brand-mark { font-size: 22px; color: var(--amber); font-family: monospace; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg);
}

.nav-tagline {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  font-family: var(--font-display);
}

/* ===== HERO ===== */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 100px 48px 80px;
  min-height: 90vh;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245,158,11,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  font-family: var(--font-display);
  margin-bottom: 16px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(42px, 5vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 17px;
  color: var(--fg-muted);
  max-width: 440px;
  line-height: 1.7;
  margin-bottom: 40px;
}

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

.hero-stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.stat-label { font-size: 11px; color: var(--fg-muted); margin-top: 2px; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* ===== PHONE MOCKUP ===== */
.hero-visual { display: flex; justify-content: center; align-items: center; }

.phone-frame {
  width: 280px;
  background: #1e1e28;
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
  position: relative;
}

.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 24px;
  background: #1e1e28;
  border-radius: 0 0 14px 14px;
  z-index: 5;
}

.phone-screen {
  background: #0f0f14;
  border-radius: 28px;
  padding: 36px 14px 14px;
  height: 480px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.wa-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
}

.wa-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  color: #000;
}

.wa-name { font-size: 14px; font-weight: 600; color: var(--fg); }
.wa-status { font-size: 11px; color: var(--green); }

.wa-messages { flex: 1; overflow: hidden; display: flex; flex-direction: column; gap: 8px; }

.wa-bubble {
  padding: 8px 12px;
  border-radius: 14px;
  font-size: 12px;
  line-height: 1.5;
  max-width: 220px;
}

.wa-in {
  background: #26263a;
  color: var(--fg);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.wa-out {
  background: var(--amber-dim);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.wa-input {
  margin-top: 10px;
  display: flex;
  align-items: center;
}

.wa-input-bar {
  flex: 1;
  height: 32px;
  background: #1e1e2a;
  border-radius: 20px;
  border: 1px solid var(--border);
}

/* ===== PROBLEM ===== */
.problem { background: var(--bg-card); padding: 100px 48px; }

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

.problem-label, .how-label, .features-label, .process-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  font-family: var(--font-display);
  margin-bottom: 16px;
}

.problem-headline, .how-headline, .features-headline, .process-headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 58px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.1;
  margin-bottom: 56px;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.problem-card {
  background: var(--bg-card);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.problem-icon { font-size: 28px; }

.problem-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.problem-desc { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }

/* ===== HOW ===== */
.how { padding: 100px 48px; background: var(--bg); }

.how-steps {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto;
}

.step {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  background: var(--bg-card);
}

.step-arrow {
  font-size: 28px;
  color: var(--amber);
  font-family: var(--font-display);
  font-weight: 700;
  padding-top: 80px;
  flex-shrink: 0;
}

.step-num {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: rgba(245,158,11,0.18);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 16px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  color: var(--fg);
}

.step-desc { font-size: 14px; color: var(--fg-muted); line-height: 1.6; }

/* ===== FEATURES ===== */
.features { padding: 100px 48px; background: var(--bg-card); }

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  padding: 32px 28px;
}

.feature-icon {
  font-size: 26px;
  margin-bottom: 14px;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

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

/* ===== PROCESS / RESULTS ===== */
.process { padding: 80px 48px; background: var(--bg); }

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

.process-results {
  display: flex;
  align-items: center;
  gap: 40px;
}

.result { display: flex; flex-direction: column; }

.result-metric {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.result-desc { font-size: 13px; color: var(--fg-muted); margin-top: 4px; }

.result-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  opacity: 0.5;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 48px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

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

.closing-mark {
  font-size: 40px;
  color: var(--amber);
  font-family: monospace;
  margin-bottom: 32px;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.1;
  margin-bottom: 28px;
}

.closing-body {
  font-size: 17px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.closing-vibe {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245,158,11,0.5);
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px 48px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-brand { display: flex; align-items: center; gap: 8px; }
.footer-mark { font-size: 18px; color: var(--amber); font-family: monospace; }
.footer-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-tag { font-size: 13px; color: var(--fg-muted); }
.footer-copy { font-size: 12px; color: var(--fg-muted); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 60px 24px 80px; gap: 48px; }
  .hero-visual { order: -1; }
  .phone-frame { width: 240px; }
  .phone-screen { height: 400px; }
  .hero-headline { font-size: 48px; }
  .hero-stat-row { gap: 16px; }

  .problem { padding: 60px 24px; }
  .problem-grid { grid-template-columns: 1fr; }
  .how { padding: 60px 24px; }
  .how-steps { flex-direction: column; }
  .step-arrow { display: none; }
  .features { padding: 60px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .process { padding: 60px 24px; }
  .process-results { flex-direction: column; align-items: flex-start; gap: 24px; }
  .result-dot { display: none; }
  .closing { padding: 80px 24px; }
  .footer { padding: 32px 24px; flex-direction: column; text-align: center; }
  .navbar { padding: 14px 24px; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: 38px; }
  .closing-headline { font-size: 32px; }
  .problem-headline, .how-headline, .features-headline { font-size: 32px; }
}