/* ── Reset & Base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #ffffff;
  --bg2: #f6f9fc;
  --text: #0a2540;
  --text-dim: #425466;
  --text-muted: #8898aa;
  --border: #e6ebf1;
  --accent: #FF4500;
  --accent2: #5469d4;
  --green: #09825d;
  --surface: #ffffff;
  --radius: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 24px rgba(10,37,64,0.08), 0 1px 4px rgba(10,37,64,0.04);
  --shadow-lg: 0 16px 48px rgba(10,37,64,0.12), 0 4px 12px rgba(10,37,64,0.06);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
  font-size: 16px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }

.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ───────────────────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 7px;
  letter-spacing: -0.02em;
}

.logo-icon {
  color: var(--accent);
  font-size: 10px;
}

.btn-nav {
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  transition: opacity 0.15s;
}

.btn-nav:hover { opacity: 0.88; }

/* ── Hero ──────────────────────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(160deg, #0a1628 0%, #0f1e35 60%, #1a1030 100%);
  color: #fff;
  padding: 80px 0 0;
  overflow: hidden;
}

.hero-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.badge {
  display: inline-block;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 100px;
  padding: 5px 16px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 22px;
}

.accent { color: var(--accent); }

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.6);
  max-width: 560px;
  line-height: 1.65;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 56px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  transition: opacity 0.15s, transform 0.15s;
  display: inline-block;
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-ghost {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 1px;
  transition: color 0.15s;
}

.btn-ghost:hover { color: rgba(255,255,255,0.85); }

.hero-img-wrap {
  width: 100%;
  max-width: 900px;
  position: relative;
}

.hero-img {
  width: 100%;
  border-radius: 14px 14px 0 0;
  box-shadow: 0 -4px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.06);
  display: block;
}

/* ── Sections ──────────────────────────────────────────────────────────────── */
.section {
  padding: 96px 0;
}

.section-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.section h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 540px;
  line-height: 1.6;
  margin-bottom: 56px;
}

/* ── Use Cases ─────────────────────────────────────────────────────────────── */
.use-cases { background: var(--bg2); }

.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.case {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.case:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.case-icon {
  font-size: 26px;
  line-height: 1;
}

.case h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.case p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 18px;
}

.case-img {
  width: 100%;
  border-radius: 10px 10px 0 0;
  border: 1px solid var(--border);
  border-bottom: none;
  box-shadow: 0 -2px 16px rgba(0,0,0,0.06);
  margin-top: auto;
}

.more-uses {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.more-uses span:first-child {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.pill {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

/* ── How it works ──────────────────────────────────────────────────────────── */
.how { background: var(--bg); }

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 56px;
}

.step {
  flex: 1;
  padding: 32px 28px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.step-divider {
  flex-shrink: 0;
  font-size: 20px;
  color: var(--border);
  padding: 0 12px;
  margin-top: 52px;
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

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

/* ── Features ──────────────────────────────────────────────────────────────── */
.features { background: var(--bg2); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  font-size: 24px;
  margin-bottom: 14px;
  line-height: 1;
}

.feature h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.feature p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ── Pricing ───────────────────────────────────────────────────────────────── */
.pricing { background: var(--bg); }

.plans {
  display: flex;
  gap: 24px;
  align-items: stretch;
  margin-top: 56px;
  margin-bottom: 24px;
  max-width: 680px;
}

.plan {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.plan.pro {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
}

.plan-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 14px;
  border-radius: 100px;
  white-space: nowrap;
}

.plan-name {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.plan-price {
  font-size: 40px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.plan-once {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
}

.plan-desc {
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
  flex: 1;
}

.plan-features li {
  font-size: 14px;
  color: var(--text-dim);
  padding-left: 20px;
  position: relative;
}

.plan-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

.plan-features li strong {
  color: var(--text);
}

.btn-plan {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--accent);
  color: #fff;
  border-radius: 9px;
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 700;
  transition: opacity 0.15s, transform 0.15s;
}

.btn-plan:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-plan-ghost {
  display: block;
  width: 100%;
  text-align: center;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 13px 20px;
  font-size: 15px;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s;
}

.btn-plan-ghost:hover { background: var(--bg2); border-color: var(--text-muted); }

.pricing-note {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ── Footer ────────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-logo {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

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

.footer-link {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 0.15s;
}

.footer-link:hover { color: var(--text); }

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .cases-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; }
  .step-divider { display: none; }
  .plans { flex-direction: column; max-width: 100%; }
  .hero h1 { font-size: 36px; }
  .hero-sub { font-size: 16px; }
  .section { padding: 64px 0; }
}
