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

:root {
  --primary: #3B5BDB;
  --primary-dark: #2F4AC0;
  --primary-light: #EDF2FF;
  --accent: #7048E8;
  --text: #1A1A2E;
  --text-sec: #4A5568;
  --text-muted: #718096;
  --bg: #FFFFFF;
  --bg-alt: #F8FAFF;
  --border: #E2E8F0;
  --success: #2F9E44;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(59,91,219,0.08);
  --shadow-lg: 0 12px 48px rgba(59,91,219,0.14);
}

html { scroll-behavior: smooth; }
body { font-family: 'Nunito', system-ui, sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ── TYPOGRAPHY ── */
h1, h2, h3 { line-height: 1.15; }
.gradient-text { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius); font-size: 15px; font-weight: 700;
  text-decoration: none; border: 2px solid transparent; cursor: pointer;
  transition: all 0.2s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(59,91,219,0.3); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-ghost { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.3); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); }
.btn-lg { padding: 16px 32px; font-size: 16px; border-radius: 14px; }
.btn-full { width: 100%; }

/* ── NAV ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-badge { width: 36px; height: 36px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 900; color: #fff; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--text); }
.nav-links { display: flex; list-style: none; gap: 32px; }
.nav-links a { text-decoration: none; font-size: 14px; font-weight: 600; color: var(--text-sec); transition: color 0.2s; }
.nav-links a:hover { color: var(--primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text); }

/* ── HERO ── */
.hero { background: linear-gradient(160deg, #0F1729 0%, #1B2B6B 50%, #0D1117 100%); padding: 100px 0 80px; overflow: hidden; }
.hero-inner { text-align: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.85); font-size: 13px; font-weight: 600; padding: 8px 18px; border-radius: 99px; border: 1px solid rgba(255,255,255,0.15); margin-bottom: 28px; backdrop-filter: blur(8px); }
.hero-title { font-size: clamp(36px, 6vw, 68px); font-weight: 900; color: #fff; letter-spacing: -1.5px; margin-bottom: 20px; }
.hero-sub { font-size: 18px; color: rgba(255,255,255,0.7); max-width: 640px; margin: 0 auto 36px; line-height: 1.7; }
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats { display: flex; align-items: center; justify-content: center; gap: 40px; flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-size: 32px; font-weight: 900; color: #fff; line-height: 1; }
.stat-label { font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-divider { width: 1px; height: 48px; background: rgba(255,255,255,0.15); }

/* ── LOGOS BAR ── */
.logos-bar { padding: 40px 0; border-bottom: 1px solid var(--border); background: var(--bg); }
.logos-label { text-align: center; font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; }
.logos-row { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.logo-pill { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 99px; padding: 8px 18px; font-size: 13px; color: var(--text-sec); font-weight: 500; }

/* ── SECTION COMMON ── */
.section-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--primary); margin-bottom: 12px; }
.section-title { font-size: clamp(28px, 4vw, 44px); font-weight: 900; color: var(--text); letter-spacing: -1px; margin-bottom: 16px; }
.section-title.left { text-align: left; }
.section-sub { font-size: 17px; color: var(--text-sec); max-width: 560px; margin: 0 auto 56px; text-align: center; line-height: 1.7; }

/* ── FEATURES ── */
.features { padding: 100px 0; background: var(--bg-alt); text-align: center; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
  background: var(--bg); border-radius: var(--radius-lg);
  padding: 32px; text-align: left;
  border: 1px solid var(--border); transition: all 0.25s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.feature-card--primary { background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%); color: #fff; border-color: transparent; }
.feature-card--primary h3, .feature-card--primary p { color: #fff; }
.feature-card--primary .feature-list li { color: rgba(255,255,255,0.8); }
.feature-card--primary .feature-list li::before { color: rgba(255,255,255,0.6); }
.feature-icon { font-size: 36px; margin-bottom: 16px; }
.feature-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 10px; color: var(--text); }
.feature-card p { font-size: 14px; color: var(--text-sec); margin-bottom: 16px; line-height: 1.6; }
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.feature-list li { font-size: 13px; color: var(--text-sec); display: flex; align-items: center; gap: 8px; }
.feature-list li::before { content: "✓"; color: var(--success); font-weight: 700; flex-shrink: 0; }

/* ── HOW IT WORKS ── */
.how { padding: 100px 0; background: var(--bg); text-align: center; }
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 56px; }
.step { display: flex; flex-direction: column; align-items: center; gap: 16px; max-width: 200px; }
.step-num { width: 52px; height: 52px; border-radius: 50%; background: var(--primary); color: #fff; font-size: 22px; font-weight: 900; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step-body { text-align: center; }
.step-body h3 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.step-body p { font-size: 13px; color: var(--text-sec); line-height: 1.5; }
.step-arrow { font-size: 24px; color: var(--primary); margin-top: 14px; }

/* ── SECURITY ── */
.security { padding: 100px 0; background: linear-gradient(135deg, #0F1729 0%, #1B2B6B 100%); }
.security-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.security-text p { color: rgba(255,255,255,0.7); font-size: 17px; margin-bottom: 36px; line-height: 1.7; }
.security-items { display: flex; flex-direction: column; gap: 20px; }
.security-item { display: flex; align-items: flex-start; gap: 16px; }
.sec-icon { font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.security-item strong { display: block; color: #fff; font-size: 15px; margin-bottom: 4px; }
.security-item p { color: rgba(255,255,255,0.6); font-size: 13px; margin: 0; }
.security-visual { display: flex; align-items: center; justify-content: center; }
.sec-card {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.15);
  border-radius: 24px; padding: 32px; text-align: center; width: 260px;
  backdrop-filter: blur(12px);
}
.sec-card-header { display: flex; align-items: center; justify-content: center; gap: 8px; color: #4ADE80; font-size: 13px; font-weight: 700; margin-bottom: 24px; letter-spacing: 1px; }
.sec-lock { font-size: 20px; }
.sec-qr-placeholder { width: 120px; height: 120px; background: rgba(255,255,255,0.1); border: 2px dashed rgba(255,255,255,0.2); border-radius: 12px; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; font-size: 13px; color: rgba(255,255,255,0.3); }
.sec-name { font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 4px; }
.sec-id { font-size: 12px; color: rgba(255,255,255,0.5); margin-bottom: 20px; font-family: monospace; }
.sec-footer { font-size: 10px; color: rgba(255,255,255,0.3); border-top: 1px solid rgba(255,255,255,0.1); padding-top: 12px; }

/* ── PRICING ── */
.pricing { padding: 100px 0; background: var(--bg-alt); text-align: center; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.price-card {
  background: var(--bg); border-radius: var(--radius-lg); padding: 40px 32px;
  border: 2px solid var(--border); position: relative; text-align: left;
  transition: all 0.25s;
}
.price-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.price-card--featured { border-color: var(--primary); background: linear-gradient(160deg, var(--primary-light) 0%, #fff 100%); }
.price-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; padding: 5px 18px; border-radius: 99px; white-space: nowrap; }
.price-plan { font-size: 14px; font-weight: 700; color: var(--text-sec); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.price-amount { font-size: 42px; font-weight: 900; color: var(--text); line-height: 1; margin-bottom: 8px; }
.price-amount span { font-size: 16px; font-weight: 500; color: var(--text-muted); }
.price-desc { font-size: 14px; color: var(--text-sec); margin-bottom: 28px; }
.price-list { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.price-list li { font-size: 14px; color: var(--text-sec); }

/* ── CONTACT ── */
.contact { padding: 100px 0; background: linear-gradient(135deg, #0F1729 0%, #1B2B6B 100%); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-text p { color: rgba(255,255,255,0.7); font-size: 17px; margin-bottom: 28px; line-height: 1.7; }
.contact-info { display: flex; flex-direction: column; gap: 12px; }
.contact-row { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.contact-row a { text-decoration: none; color: #fff; transition: opacity 0.2s; }
.contact-row a:hover { opacity: 0.8; }
.contact-form { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-lg); padding: 36px; backdrop-filter: blur(12px); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.7); margin-bottom: 8px; }
.form-group input, .form-group select {
  width: 100%; padding: 12px 16px; background: rgba(255,255,255,0.06); border: 1.5px solid rgba(255,255,255,0.15);
  border-radius: 10px; font-size: 14px; color: #fff; font-family: inherit; transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: rgba(255,255,255,0.4); }
.form-group input::placeholder { color: rgba(255,255,255,0.3); }
.form-group select option { background: #1B2B6B; color: #fff; }
.form-note { text-align: center; font-size: 12px; color: rgba(255,255,255,0.4); margin-top: 12px; }

/* ── FOOTER ── */
.footer { background: #0A0F1E; padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.4); margin-top: 12px; max-width: 240px; line-height: 1.6; }
.footer-links { display: contents; }
.footer-links div h4 { font-size: 13px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links div ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links div ul a { text-decoration: none; font-size: 13px; color: rgba(255,255,255,0.4); transition: color 0.2s; }
.footer-links div ul a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 24px; text-align: center; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.3); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
  .security-inner { grid-template-columns: 1fr; }
  .security-visual { display: none; }
  .contact-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 20px 24px; gap: 16px; }
  .nav-cta.open { display: flex; flex-direction: column; padding: 16px 24px 24px; background: #fff; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); }
  .hero-stats { gap: 20px; }
  .stat-divider { display: none; }
  .footer-inner { grid-template-columns: 1fr; }
}