:root {
  --bg: #0d2442;
  --bg2: #0b1e38;
  --surface: #ffffff;
  --surface-2: #f5f7fb;
  --border: rgba(14, 32, 58, 0.12);
  --text: #0f172a;
  --muted: #5b6474;
  --muted-2: #7a8497;
  --white: #ffffff;
  --brand: #2f6df6;
  --brand-2: #1e3a8a;
  --shadow: 0 20px 50px rgba(2, 6, 23, 0.18);
  --shadow-soft: 0 12px 30px rgba(2, 6, 23, 0.12);
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --container: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--surface-2);
  line-height: 1.5;
}

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 18px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 10px;
  transform: translateY(-200%);
  background: var(--white);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
  z-index: 1000;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 3px solid rgba(47, 109, 246, 0.35);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: radial-gradient(1200px 400px at 50% -250px, rgba(255, 255, 255, 0.22), transparent 60%),
    linear-gradient(180deg, var(--bg2), var(--bg));
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.brand-text {
  opacity: 0.95;
  letter-spacing: 0.2px;
}

.brand-mark {
  filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.25));
}

.logo-circle {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--white);
  display: inline-grid;
  place-items: center;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.22);
}

.logo-circle img {
  width: 82%;
  height: 82%;
  object-fit: contain;
}

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

.nav-link {
  font-size: 14px;
  opacity: 0.9;
}

.nav-link:hover,
.nav-link:focus-visible {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 6px;
}

.nav-toggle {
  display: none;
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--white);
  padding: 10px;
  border-radius: 12px;
}

.nav-toggle:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.25);
}

.nav-toggle-bars {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
  border-radius: 4px;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 4px;
}

.nav-toggle-bars::before {
  top: -6px;
}

.nav-toggle-bars::after {
  top: 6px;
}

.nav-drawer {
  background: rgba(10, 24, 44, 0.92);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-drawer-inner {
  padding: 10px 0 16px;
  display: grid;
  gap: 10px;
}

.nav-drawer-link {
  padding: 12px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  font-weight: 500;
}

.nav-drawer-link:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.25);
}

/* Hero */
.hero {
  background: radial-gradient(1400px 520px at 50% -240px, rgba(255, 255, 255, 0.22), transparent 62%),
    linear-gradient(180deg, var(--bg), #133968 65%, #f5f7fb 65%);
  color: var(--white);
}

.hero-inner {
  padding: 46px 0 34px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 34px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 3.3vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.84);
}

.video-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.32);
  overflow: hidden;
}

.video-topbar {
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.video-pill {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  white-space: nowrap;
}

.video-title {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.86);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: rgba(255, 255, 255, 0.08);
}

.video-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.95;
}

.video-play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.video-play:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.35);
  outline-offset: -3px;
}

.video-play-icon {
  width: 64px;
  height: 64px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  display: grid;
  place-items: center;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(10px);
}

.video-play-icon::before {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-left: 14px solid rgba(255, 255, 255, 0.95);
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  margin-left: 4px;
}

.video-footer {
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 0, 0, 0.12);
}

.video-footer-text {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.86);
}

.video-footer-chip {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.1);
}

/* Sections */
.section {
  padding: 42px 0;
}

.section-alt {
  background: var(--surface-2);
}

.section-head {
  text-align: center;
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 2.2vw, 32px);
  letter-spacing: -0.01em;
}

.section-subtitle {
  margin: 0 auto;
  max-width: 62ch;
  color: var(--muted);
  font-size: 13px;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(2, 6, 23, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease;
  min-height: 260px;
  display: grid;
  grid-template-rows: 132px 1fr;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 46px rgba(2, 6, 23, 0.12);
}

.card-media {
  background: #e8eef9;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  padding: 14px 16px 16px;
}

.card-kicker {
  margin: 0 0 6px;
  font-size: 11px;
  color: var(--muted-2);
  letter-spacing: 0.02em;
}

.card-title {
  margin: 0 0 6px;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.card-text {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* FAQ */
.faq-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.faq-col {
  display: grid;
  gap: 10px;
}

.faq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0;
  overflow: hidden;
}

.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid rgba(47, 109, 246, 0.25);
  background: radial-gradient(circle at 30% 30%, rgba(47, 109, 246, 0.35), transparent 55%);
  position: relative;
}

.faq summary::before {
  content: "▾";
  margin-left: auto;
  color: var(--muted-2);
  font-weight: 700;
  transform: translateX(26px);
  transition: transform 140ms ease, rotate 140ms ease;
}

.faq[open] summary::before {
  rotate: 180deg;
}

.faq:focus-within {
  outline: 3px solid rgba(47, 109, 246, 0.25);
}

.faq-content {
  padding: 0 16px 14px;
  color: var(--muted);
  font-size: 13px;
}

/* Contact */
.contact {
  display: grid;
  place-items: center;
}

.contact-card {
  width: min(760px, 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.72));
  box-shadow: var(--shadow-soft);
  padding: 22px;
}

.contact-card h2 {
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.contact-text {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
}

.contact-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(180deg, #3a78ff, #2f6df6);
  color: var(--white);
  box-shadow: 0 14px 34px rgba(47, 109, 246, 0.26);
}

.btn-primary:hover {
  filter: brightness(1.02);
}

.btn-ghost {
  background: rgba(47, 109, 246, 0.06);
  border-color: rgba(47, 109, 246, 0.18);
  color: #1c3faa;
}

.btn:focus-visible {
  outline: 3px solid rgba(47, 109, 246, 0.28);
  outline-offset: 2px;
}

/* Footer */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.footer-inner {
  padding: 18px 0;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 10px;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}

.footer-right a {
  color: #1c3faa;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Responsive */
@media (max-width: 940px) {
  .hero-inner {
    grid-template-columns: 1fr;
    padding: 36px 0 26px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .section {
    padding: 34px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}