:root {
  --blue-900: #0b2b4c;
  --blue-700: #155a9c;
  --blue-600: #1f6fbf;
  --blue-500: #2a86d4;
  --blue-100: #e6f1fb;
  --mint-50: #f3fbfb;
  --gray-900: #0f1a24;
  --gray-700: #2c3e50;
  --gray-600: #4a5b6a;
  --gray-400: #7b8a99;
  --gray-200: #dfe7ee;
  --white: #ffffff;
  --shadow: 0 12px 24px rgba(15, 26, 36, 0.08);
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --max-w: 1120px;
}

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

body {
  font-family: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-900);
  background: linear-gradient(160deg, #f9fcff 0%, #eef6ff 45%, #f7fdfd 100%);
  min-height: 100vh;
  line-height: 1.6;
}

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

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

.container {
  width: min(100% - 2.5rem, var(--max-w));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  color: var(--blue-900);
  letter-spacing: 0.2px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(140deg, var(--blue-700), var(--blue-500));
  color: var(--white);
  font-weight: 700;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(42, 134, 212, 0.35);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  list-style: none;
  font-size: 0.95rem;
  color: var(--gray-700);
}

.nav-links a {
  padding: 0.35rem 0.2rem;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--blue-600);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

.hero {
  padding: 4.5rem 0 2.5rem;
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--blue-900);
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: var(--blue-100);
  color: var(--blue-700);
}

.section {
  padding: 2.5rem 0;
}

.section-title {
  font-size: 1.8rem;
  color: var(--blue-900);
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--gray-600);
  margin-bottom: 1.8rem;
}

.grid-3 {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}

.card h3 {
  margin-bottom: 0.6rem;
  color: var(--blue-900);
}

.card p {
  color: var(--gray-600);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status.live {
  background: #e7fbf0;
  color: #0c7a43;
}

.status.progress {
  background: #fff6dd;
  color: #8a5b00;
}

.status.planned {
  background: #eef2ff;
  color: #3646a1;
}

.list {
  display: grid;
  gap: 0.6rem;
  padding-left: 1.2rem;
}

.list li {
  color: var(--gray-600);
}

.split {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.highlight {
  background: linear-gradient(135deg, #e3f1ff 0%, #f0fbfb 100%);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  border: 1px solid #d2e6fb;
}

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

.snapshot {
  border-radius: var(--radius-md);
  border: 1px dashed #9bb6d2;
  background: #f5f9ff;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  color: var(--gray-400);
  font-size: 0.9rem;
}

.metrics {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.metric {
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  padding: 1rem;
  background: var(--white);
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue-900);
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
  font-size: 0.95rem;
}

.table th,
.table td {
  border: 1px solid var(--gray-200);
  padding: 0.65rem;
  text-align: left;
}

.table th {
  background: #f0f6ff;
  color: var(--blue-900);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.2rem;
}

.toggle-btn {
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-700);
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-btn.active,
.toggle-btn:focus-visible {
  background: var(--blue-600);
  color: var(--white);
  border-color: var(--blue-600);
  outline: none;
  box-shadow: 0 10px 18px rgba(31, 111, 191, 0.25);
}

.slide-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.slide {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}

.visual-placeholder {
  margin-top: 1rem;
  border-radius: var(--radius-md);
  border: 1px dashed #9bb6d2;
  background: #f5f9ff;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  color: var(--gray-400);
  font-size: 0.9rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  background: var(--blue-600);
  color: var(--white);
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 18px rgba(31, 111, 191, 0.25);
}

.button.secondary {
  background: var(--white);
  color: var(--blue-700);
  border: 1px solid var(--blue-200, #bcd6f2);
  box-shadow: none;
}

.button:hover {
  transform: translateY(-2px);
}

.footer {
  margin-top: 3rem;
  padding: 2.5rem 0;
  background: var(--blue-900);
  color: #d6e4f2;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.footer h4 {
  color: var(--white);
  margin-bottom: 0.8rem;
}

.footer a {
  color: #d6e4f2;
}

.small {
  font-size: 0.9rem;
  color: var(--gray-400);
}

.footer .small {
  color: #b8cbe0;
}

.back-button {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  background: var(--blue-600);
  color: var(--white);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 12px 18px rgba(31, 111, 191, 0.25);
  z-index: 1000;
}

@media (max-width: 900px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 3rem;
  }
}

@media (max-width: 600px) {
  .hero-card {
    padding: 1.8rem;
  }

  .nav-links {
    gap: 0.6rem 1rem;
  }
}