@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg-body: #0a0f1a;
  --bg-surface: #111827;
  --bg-surface-2: #161f30;
  --border: #1f2937;
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --primary: #06b6d4;
  --primary-hover: #22d3ee;
  --accent: #8b5cf6;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --container: 1180px;
  --radius: 14px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--bg-body);
  color: var(--text-primary);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { margin: 0; padding: 0; list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.text-gradient {
  background: linear-gradient(90deg, #f9fafb 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section {
  padding: 96px 0;
}

.section-head {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  margin: 0 0 14px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 17px;
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--primary);
  color: #04222b;
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 8px 24px rgba(6, 182, 212, 0.35);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-primary);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg { padding: 15px 30px; font-size: 16px; }

/* ---------- Navbar ---------- */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 15, 26, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
}

.brand img { width: 34px; height: 34px; object-fit: contain; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-links a:hover { color: var(--text-primary); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.lang-switch {
  display: flex;
  gap: 4px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
}

.lang-switch a {
  padding: 5px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}

.lang-switch a.active {
  background: var(--primary);
  color: #04222b;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
}

/* ---------- Hero ---------- */

.hero {
  padding: 88px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 22px;
}

.hero-lead {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 0 34px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-art {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  justify-self: center;
}

.hero-art svg { width: 100%; height: 100%; }

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 40px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 9px 16px;
  border-radius: 999px;
}

.chip .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

/* ---------- Trust strip ---------- */

.trust-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}

.trust-strip .container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* ---------- Feature cards ---------- */

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  transform: translateY(-3px);
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.12);
  color: var(--primary);
  margin-bottom: 18px;
}

.card-icon svg { width: 24px; height: 24px; }

.card h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 10px;
}

.card p {
  font-size: 14.5px;
  color: var(--text-secondary);
  margin: 0;
}

/* ---------- Devices ---------- */

.device-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.device-badge {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ---------- Why cards ---------- */

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

.why-card {
  padding: 8px;
}

.why-card .card-icon {
  background: rgba(139, 92, 246, 0.14);
  color: var(--accent);
}

.why-card h3 { font-size: 19px; }
.why-card p { font-size: 15px; }

/* ---------- CTA banner ---------- */

.cta-banner {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.14), rgba(139, 92, 246, 0.14));
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 20px;
  padding: 56px;
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(24px, 3.4vw, 32px);
  margin: 0 0 14px;
  font-weight: 700;
}

.cta-banner p {
  color: var(--text-secondary);
  margin: 0 0 30px;
  font-size: 16px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.contact-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.contact-row:last-child { border-bottom: none; }

.contact-row .label {
  color: var(--text-secondary);
  min-width: 90px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 32px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.footer-links {
  display: flex;
  gap: 26px;
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-links a:hover { color: var(--text-primary); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- Reveal animation ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { max-width: 340px; margin-top: 20px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .device-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .lang-switch a span.full { display: none; }
  .section { padding: 64px 0; }
  .cta-banner { padding: 36px 22px; }
}

@media (max-width: 720px) {
  body.nav-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-body);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px 24px;
  }
}

@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .device-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  /* Prevents the navbar (lang switch + CTA + hamburger) from overflowing
     the viewport on narrow phones; the hero section has its own CTA. */
  .nav-right .btn-primary { display: none; }
}