:root {
  --bg: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #161d2e;
  --fg: #e8ecf4;
  --fg-muted: #8b95a8;
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --orange: #f59e0b;
  --orange-glow: rgba(245, 158, 11, 0.12);
  --border: #1e293b;
  --radius: 12px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

/* ---- HERO ---- */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 60px;
  padding: 80px 40px;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.hero-inner {
  flex: 1;
  min-width: 320px;
  max-width: 560px;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--accent-bright);
  background: var(--accent-glow);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  color: var(--accent-bright);
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 480px;
}

/* Phone mock */
.hero-graphic {
  flex: 0 0 320px;
}

.phone-mock {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 20px;
  position: relative;
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.08);
}

.phone-header {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--accent-bright);
  text-align: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.msg {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 10px;
  max-width: 85%;
}

.msg-in {
  background: var(--bg-card);
  color: var(--fg-muted);
  border-bottom-left-radius: 4px;
}

.msg-out {
  background: var(--accent);
  color: #fff;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 8px 0;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--fg-muted);
  border-radius: 50%;
  opacity: 0.4;
  animation: blink 1.4s infinite both;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes blink {
  0%, 80%, 100% { opacity: 0.4; transform: scale(1); }
  40% { opacity: 1; transform: scale(1.1); }
}

/* ---- PROBLEM ---- */
.problem {
  padding: 100px 40px;
  background: var(--bg-secondary);
}

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

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
  letter-spacing: -0.02em;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.problem-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color 0.2s;
}

.problem-card:hover {
  border-color: var(--accent);
}

.problem-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---- FEATURES ---- */
.features {
  padding: 100px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.features-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.features-sub {
  color: var(--fg-muted);
  font-size: 1.1rem;
  margin-bottom: 56px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.feature-item {
  display: flex;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.feature-item:last-child {
  border-bottom: none;
}

.feature-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-bright);
  background: var(--accent-glow);
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.feature-content p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ---- NUMBERS ---- */
.numbers {
  padding: 100px 40px;
  background: var(--bg-secondary);
}

.numbers-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.numbers-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  letter-spacing: -0.02em;
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.number-block {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.number-value {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 12px;
  line-height: 1;
}

.number-label {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ---- CLOSING ---- */
.closing {
  padding: 120px 40px;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.closing-inner h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.closing-inner p {
  color: var(--fg-muted);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.closing-tagline {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--accent-bright) !important;
  font-size: 1.15rem !important;
  margin-top: 24px !important;
}

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

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.footer-text {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding: 60px 24px;
    min-height: auto;
    gap: 40px;
  }

  .hero-graphic {
    flex: 0 0 auto;
    width: 100%;
    max-width: 360px;
  }

  .problem, .features, .numbers, .closing {
    padding: 60px 24px;
  }

  .problem-grid, .numbers-grid {
    grid-template-columns: 1fr;
  }

  .feature-item {
    flex-direction: column;
    gap: 12px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}