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

:root {
  --ink: #0a0f1a;
  --ink-soft: #3d4663;
  --ink-muted: #6b7394;
  --surface: #ffffff;
  --surface-alt: #f6f7fb;
  --surface-raised: #edeef5;
  --border: #e0e2ec;
  --accent: #2540f5;
  --accent-hover: #1a30c4;
  --accent-soft: #eef0ff;
  --accent-glow: rgba(37, 64, 245, .08);
  --success: #0d9158;
  --radius: 12px;
  --radius-sm: 8px;
  --max-w: 1160px;
  --transition: .2s ease;

  --nav-bg: rgba(255, 255, 255, .85);
  --nav-scrolled-shadow: rgba(0, 0, 0, .06);
  --hero-gradient: linear-gradient(175deg, var(--accent-soft) 0%, var(--surface) 50%);
  --hero-glow: rgba(37, 64, 245, .06);
  --card-hover-shadow: rgba(0, 0, 0, .05);
  --cta-bg: linear-gradient(135deg, #0a0f1a 0%, #1a2240 100%);
  --cta-glow: rgba(37, 64, 245, .2);
  --cta-subtitle: rgba(255, 255, 255, .7);
  --pricing-gradient: linear-gradient(135deg, var(--accent) 0%, #1a30c4 100%);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e4e7f0;
    --ink-soft: #a8b0c8;
    --ink-muted: #7a849e;
    --surface: #0c1024;
    --surface-alt: #111630;
    --surface-raised: #181e3c;
    --border: #252c4e;
    --accent: #4d6aff;
    --accent-hover: #6b82ff;
    --accent-soft: rgba(77, 106, 255, .12);
    --accent-glow: rgba(77, 106, 255, .15);
    --success: #34d399;

    --nav-bg: rgba(12, 16, 36, .88);
    --nav-scrolled-shadow: rgba(0, 0, 0, .3);
    --hero-gradient: linear-gradient(175deg, rgba(77, 106, 255, .08) 0%, var(--surface) 50%);
    --hero-glow: rgba(77, 106, 255, .1);
    --card-hover-shadow: rgba(0, 0, 0, .25);
    --cta-bg: linear-gradient(135deg, #0a0e20 0%, #131836 100%);
    --cta-glow: rgba(77, 106, 255, .25);
    --cta-subtitle: rgba(255, 255, 255, .55);
    --pricing-gradient: linear-gradient(135deg, #3a54e0 0%, #1a30c4 100%);
    color-scheme: dark;
  }
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

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

/* ---- Layout ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; }
.section-alt { background: var(--surface-alt); }

/* ---- Typography ---- */
h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.12; letter-spacing: -.03em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 700; line-height: 1.2; letter-spacing: -.02em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.35; }
.subtitle { font-size: 1.125rem; color: var(--ink-soft); line-height: 1.7; max-width: 640px; }
.label { font-size: .8125rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: 12px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: inherit; font-weight: 600; font-size: 1rem;
  padding: 14px 28px; border-radius: var(--radius-sm);
  text-decoration: none; border: none; cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #fff !important; box-shadow: 0 1px 3px var(--accent-glow); }
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 4px 14px var(--accent-glow); }
.btn-secondary { background: var(--surface); color: var(--ink); border: 1.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--ink-muted); background: var(--surface-alt); }
.btn-lg { padding: 16px 36px; font-size: 1.0625rem; border-radius: var(--radius); }

/* ---- Nav ---- */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--nav-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
nav.scrolled { box-shadow: 0 1px 12px var(--nav-scrolled-shadow); }
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-logo { font-size: 1.25rem; font-weight: 800; color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { font-size: .9375rem; font-weight: 500; color: var(--ink-soft); text-decoration: none; transition: color var(--transition); }
.nav-links a:hover { color: var(--ink); }
.nav-cta .btn { padding: 10px 22px; font-size: .9375rem; }
.nav-mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; color: var(--ink); }
.nav-mobile-toggle svg { display: block; }

/* ---- Language Picker ---- */
.nav-lang { position: relative; }
.lang-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  background: none; border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  padding: 6px 12px; font-family: inherit; font-size: .8125rem; font-weight: 600;
  color: var(--ink-soft); cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.lang-toggle:hover { border-color: var(--ink-muted); color: var(--ink); background: var(--surface-alt); }
.lang-toggle svg { flex-shrink: 0; }
.lang-menu {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 6px 0;
  min-width: 140px; list-style: none;
  box-shadow: 0 8px 24px var(--card-hover-shadow);
  z-index: 200;
}
.lang-menu.open { display: block; }
.lang-menu a {
  display: block; padding: 8px 16px; font-size: .875rem; font-weight: 500;
  color: var(--ink-soft); text-decoration: none;
  transition: background var(--transition), color var(--transition);
}
.lang-menu a:hover { background: var(--surface-alt); color: var(--ink); }
.lang-menu a.active { color: var(--accent); font-weight: 600; }

/* ---- Hero ---- */
.hero {
  padding: 160px 0 96px;
  background: var(--hero-gradient);
  position: relative; overflow: hidden;
}
.hero::before {
  content: ''; position: absolute; top: -120px; right: -160px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent-soft); color: var(--accent);
  font-size: .8125rem; font-weight: 600; padding: 6px 14px;
  border-radius: 100px; margin-bottom: 24px;
}
.hero-badge svg { flex-shrink: 0; }
.hero h1 { margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .subtitle { margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-proof {
  margin-top: 48px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  font-size: .875rem; color: var(--ink-muted);
}
.hero-proof-item { display: flex; align-items: center; gap: 6px; }
.hero-proof-item svg { color: var(--success); flex-shrink: 0; }

/* ---- Logos / Trust ---- */
.trust { padding: 48px 0; border-bottom: 1px solid var(--border); }
.trust p { font-size: .8125rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-muted); text-align: center; margin-bottom: 24px; }
.trust-flags { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; align-items: center; }
.trust-flag { display: flex; align-items: center; gap: 8px; font-size: .9375rem; font-weight: 600; color: var(--ink-soft); }
.trust-flag img { width: 28px; height: 20px; border-radius: 3px; object-fit: cover; border: 1px solid var(--border); }

/* ---- Problem/Solution ---- */
.problem-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px; margin-top: 48px;
}
.problem-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.problem-card:hover { box-shadow: 0 4px 20px var(--card-hover-shadow); border-color: var(--ink-muted); }
.problem-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.problem-card h3 { margin-bottom: 8px; }
.problem-card p { font-size: .9375rem; color: var(--ink-soft); line-height: 1.6; }

/* ---- How it Works ---- */
.steps { margin-top: 56px; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; }
.step { position: relative; padding-left: 0; }
.step-number {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.125rem; margin-bottom: 20px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: .9375rem; color: var(--ink-soft); }

/* ---- Features Grid ---- */
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px; margin-top: 48px;
}
.feature-card {
  background: var(--surface-alt); border-radius: var(--radius);
  padding: 32px; border: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.feature-card:hover { border-color: var(--border); box-shadow: 0 2px 12px var(--card-hover-shadow); }
.feature-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { font-size: .9375rem; color: var(--ink-soft); line-height: 1.6; }

/* ---- Pricing ---- */
.pricing-wrapper { margin-top: 48px; max-width: 800px; margin-left: auto; margin-right: auto; }
.pricing-card {
  background: var(--surface); border: 2px solid var(--accent);
  border-radius: var(--radius); overflow: hidden;
}
.pricing-header {
  background: var(--pricing-gradient);
  color: #fff; padding: 36px 40px; text-align: center;
}
.pricing-header h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 4px; color: #fff; }
.pricing-header p { font-size: .9375rem; opacity: .85; }
.pricing-body { padding: 40px; }
.pricing-items { list-style: none; margin-bottom: 32px; }
.pricing-items li {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 0; border-bottom: 1px solid var(--border);
  font-size: 1rem;
}
.pricing-items li:last-child { border-bottom: none; }
.pricing-items .price { font-weight: 700; font-size: 1.125rem; color: var(--ink); white-space: nowrap; }
.pricing-items .desc { color: var(--ink-soft); padding-right: 16px; }
.pricing-note { font-size: .8125rem; color: var(--ink-muted); text-align: center; margin-bottom: 24px; line-height: 1.6; }
.pricing-cta { text-align: center; }

/* ---- Data Residency ---- */
.residency-grid {
  display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin-top: 40px;
}
.residency-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 32px;
  text-align: center; min-width: 140px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.residency-card:hover { box-shadow: 0 4px 16px var(--card-hover-shadow); border-color: var(--ink-muted); }
.residency-card .flag { font-size: 2rem; margin-bottom: 8px; }
.residency-card h3 { font-size: 1rem; margin-bottom: 2px; }
.residency-card p { font-size: .8125rem; color: var(--ink-muted); }

/* ---- Workflow Visual ---- */
.workflow {
  margin-top: 48px;
  display: flex; align-items: stretch; gap: 0;
  overflow-x: auto; padding-bottom: 8px;
}
.workflow-step {
  flex: 1; min-width: 160px; text-align: center;
  padding: 24px 16px;
  position: relative;
}
.workflow-step::after {
  content: ''; position: absolute; top: 38px; right: -12px;
  width: 24px; height: 2px; background: var(--accent);
}
.workflow-step:last-child::after { display: none; }
.workflow-step .ws-icon {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px;
}
.workflow-step h3 { font-size: .9375rem; }
.workflow-step p { font-size: .8125rem; color: var(--ink-muted); margin-top: 4px; }

/* ---- CTA ---- */
.cta-section {
  background: var(--cta-bg);
  color: #fff; text-align: center; padding: 96px 0;
  position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -100px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, var(--cta-glow) 0%, transparent 70%);
}
.cta-section h2 { color: #fff; margin-bottom: 16px; position: relative; }
.cta-section .subtitle { color: var(--cta-subtitle); margin-bottom: 36px; position: relative; }
.cta-section .btn-primary { padding: 18px 44px; font-size: 1.125rem; position: relative; }

/* ---- Footer ---- */
footer {
  background: var(--surface-alt); border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer-left p { font-size: .875rem; color: var(--ink-muted); }
.footer-links { display: flex; gap: 24px; list-style: none; }
.footer-links a { font-size: .875rem; color: var(--ink-muted); text-decoration: none; transition: color var(--transition); }
.footer-links a:hover { color: var(--ink); }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  section { padding: 64px 0; }
  .hero { padding: 120px 0 64px; }
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: 24px; gap: 20px;
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .features-grid { grid-template-columns: 1fr; }
  .pricing-body { padding: 24px; }
  .workflow { flex-direction: column; align-items: center; }
  .workflow-step::after { display: none; }
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ---- RTL Support ---- */
[dir="rtl"] .hero-content { margin-left: auto; margin-right: 0; }
[dir="rtl"] .hero::before { right: auto; left: -160px; }
[dir="rtl"] .workflow-step::after { right: auto; left: -12px; }
[dir="rtl"] .pricing-items .desc { padding-right: 0; padding-left: 16px; }
[dir="rtl"] .lang-menu { right: auto; left: 0; }

/* ---- Animations ---- */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0; transform: translateY(20px);
    transition: opacity .6s ease, transform .6s ease;
  }
  .fade-in.visible { opacity: 1; transform: translateY(0); }
}