:root {
  --bg: #0b1020;
  --bg-alt: #111833;
  --surface: #121a37;
  --surface-2: #172147;
  --text: #f4f6ff;
  --muted: #b8c1ec;
  --accent: #4f8cff;
  --accent-2: #7c5cff;
  --success: #34d399;
  --warning: #fbbf24;
  --shadow: 0 18px 50px rgba(12, 18, 43, 0.4);
}

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

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #0b1020 0%, #0e1430 100%);
  color: var(--text);
  line-height: 1.6;
}

main p {
  margin-top: 12px;
}

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

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

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(8, 12, 28, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: transparent;
  display: grid;
  place-items: center;
  font-weight: 700;
  overflow: hidden;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scale(1.6);
}

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--muted);
  transition: color 0.2s ease;
}

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

.nav-cta {
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.6rem;
}

.hero {
  position: relative;
  padding: 110px 0 90px;
  background: radial-gradient(circle at top left, rgba(79, 140, 255, 0.2), transparent 40%),
    radial-gradient(circle at bottom right, rgba(124, 92, 255, 0.2), transparent 40%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../images/hero-tech.jpg") center/cover no-repeat;
  opacity: 0.18;
}

.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: 40px;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero p {
  color: var(--muted);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-banner {
  border-radius: 24px;
  box-shadow: var(--shadow);
  width: 100%;
  height: min(420px, 60vw);
  object-fit: cover;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--accent);
  color: #fff;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text);
}

.trust-bar {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.checklist {
  list-style: none;
  display: grid;
  gap: 12px;
  margin-top: 18px;
  color: var(--muted);
}

.checklist li::before {
  content: "✔";
  color: var(--success);
  margin-right: 10px;
}

.section {
  padding: 80px 0;
}

.stack {
  display: grid;
  gap: 18px;
}

.stack-tight {
  display: grid;
  gap: 10px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}

.section-title h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.section-title p {
  color: var(--muted);
  max-width: 520px;
}

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

.card {
  padding: 24px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(18, 26, 55, 0.9), rgba(16, 22, 50, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 16px 0 10px;
}

.card p {
  color: var(--muted);
}

.card ul {
  margin-top: 12px;
  padding-left: 20px;
  color: var(--muted);
}

.card li {
  margin-bottom: 8px;
}

.media-card {
  overflow: hidden;
}

.media-card img {
  height: 220px;
  width: 100%;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(79, 140, 255, 0.15);
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
}

.split img {
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.feature-image {
  width: 100%;
  height: min(360px, 60vw);
  object-fit: cover;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
}

.stat {
  background: var(--surface);
  border-radius: 16px;
  padding: 18px;
  text-align: center;
}

.stat span {
  font-size: 1.8rem;
  font-weight: 700;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.testimonial {
  padding: 24px;
  background: var(--surface-2);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.testimonial p {
  color: var(--muted);
  margin-bottom: 16px;
}

.cta {
  background: linear-gradient(135deg, rgba(79, 140, 255, 0.2), rgba(124, 92, 255, 0.2));
  border-radius: 24px;
  padding: 48px;
  display: grid;
  gap: 18px;
  align-items: center;
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px 0 60px;
  background: rgba(8, 12, 28, 0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.footer-grid h4 {
  margin-bottom: 12px;
}

.footer-grid a {
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}

.footer-bottom {
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.9rem;
}

.page-hero {
  padding: 80px 0 40px;
  background: linear-gradient(180deg, rgba(18, 26, 55, 0.9), rgba(10, 14, 32, 0.9));
}

.page-hero h1 {
  font-size: clamp(2rem, 3vw, 3rem);
  margin-bottom: 14px;
}

.contact-panel {
  background: linear-gradient(135deg, rgba(18, 26, 55, 0.92), rgba(12, 18, 43, 0.92));
  border-radius: 24px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.contact-grid {
  display: grid;
  gap: 24px;
}

.contact-hero {
  display: grid;
  gap: 20px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.form {
  display: grid;
  gap: 16px;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(15, 20, 42, 0.7);
  color: var(--text);
}

.form button {
  border: none;
  cursor: pointer;
}

.notice {
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 16px;
  border-radius: 16px;
  color: #d1fae5;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.table th,
.table td {
  text-align: left;
  padding: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-list details {
  background: var(--surface);
  border-radius: 16px;
  padding: 18px 20px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
}

.faq-list p {
  color: var(--muted);
  margin-top: 12px;
}

@media (max-width: 900px) {
  .nav-links {
    position: absolute;
    right: 20px;
    top: 70px;
    background: rgba(10, 14, 32, 0.98);
    flex-direction: column;
    padding: 18px;
    border-radius: 16px;
    gap: 12px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: 0.2s ease;
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .mobile-toggle {
    display: block;
  }
}