:root {
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --gold-500: #c8a14a;
  --gold-400: #d6b46a;
  --gold-200: #f5e7c2;
  --success-soft: #ecfdf5;
  --danger-soft: #fff1f2;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 16px 40px rgba(15, 23, 42, 0.1);
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;
  --content-width: 1120px;
}

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

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at 15% -10%, #e8edf5 0%, #f8fafc 38%, #f4f6fb 100%);
  color: var(--slate-700);
  line-height: 1.65;
}

a {
  color: var(--slate-800);
  text-decoration: none;
}

a:hover {
  color: var(--slate-900);
}

img {
  max-width: 100%;
}

.site-shell {
  width: min(var(--content-width), calc(100% - 2.5rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  margin-top: 1rem;
}

.nav-wrap {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(100, 116, 139, 0.2);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius-pill);
  padding: 0.9rem 1.1rem;
  backdrop-filter: blur(10px);
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--slate-900);
}

.wordmark span {
  color: var(--slate-500);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--slate-700);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: 180ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--surface);
  border-color: rgba(100, 116, 139, 0.25);
  color: var(--slate-900);
}

.main-content {
  padding: 2.2rem 0 4rem;
}

.hero {
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.96));
  border: 1px solid rgba(100, 116, 139, 0.16);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: clamp(1.6rem, 2.4vw, 2.6rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-600);
  background: var(--surface-soft);
  border: 1px solid rgba(100, 116, 139, 0.2);
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
}

.eyebrow::before {
  content: "";
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
  box-shadow: 0 0 0 4px rgba(200, 161, 74, 0.16);
}

h1,
h2,
h3 {
  color: var(--slate-900);
  line-height: 1.2;
  margin: 0 0 0.85rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.35rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.015em;
}

h3 {
  font-size: 1.12rem;
}

p {
  margin: 0 0 1rem;
}

.lead {
  font-size: clamp(1.06rem, 2vw, 1.22rem);
  color: var(--slate-600);
  max-width: 70ch;
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: var(--radius-pill);
  padding: 0.72rem 1.15rem;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.btn-primary {
  background: linear-gradient(160deg, var(--slate-700), var(--slate-500));
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(51, 65, 85, 0.28);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(51, 65, 85, 0.36);
  color: #ffffff;
}

.btn-secondary {
  background: var(--surface);
  color: var(--slate-800);
  border-color: rgba(100, 116, 139, 0.32);
}

.btn-secondary:hover {
  background: var(--surface-soft);
}

.section {
  margin-top: 2rem;
}

.section-card {
  background: var(--surface);
  border: 1px solid rgba(100, 116, 139, 0.16);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius-xl);
  padding: clamp(1.2rem, 2vw, 2rem);
}

.premium-callout {
  display: grid;
  gap: 0.8rem;
  border: 1px solid rgba(200, 161, 74, 0.5);
  background: linear-gradient(130deg, #fffdf8 0%, #ffffff 65%);
  position: relative;
  overflow: hidden;
}

.premium-callout::after {
  content: "";
  position: absolute;
  right: -2rem;
  top: -2rem;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 161, 74, 0.24), transparent 70%);
}

.premium-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--slate-700);
}

.premium-list li {
  margin-bottom: 0.45rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.link-card {
  display: block;
  background: var(--surface);
  border: 1px solid rgba(100, 116, 139, 0.22);
  border-radius: var(--radius-lg);
  padding: 1.05rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
  transition: 180ms ease;
}

.link-card h3 {
  margin-bottom: 0.35rem;
}

.link-card p {
  color: var(--slate-600);
  margin-bottom: 0;
}

.link-card:hover {
  transform: translateY(-2px);
  border-color: rgba(100, 116, 139, 0.35);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

.topic-card {
  background: var(--surface);
  border: 1px solid rgba(100, 116, 139, 0.2);
  border-radius: var(--radius-lg);
  padding: 1rem;
}

.topic-card p {
  margin-bottom: 0;
  color: var(--slate-600);
}

.meta {
  font-size: 0.9rem;
  color: var(--slate-600);
}

.divider {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(100, 116, 139, 0.32), transparent);
  margin: 1.4rem 0;
}

.legal-layout {
  display: grid;
  gap: 1.25rem;
}

.legal-block {
  border: 1px solid rgba(100, 116, 139, 0.16);
  border-radius: var(--radius-lg);
  padding: 1rem 1.1rem;
  background: linear-gradient(160deg, #ffffff, #fbfcfe);
}

.legal-block h2 {
  font-size: 1.28rem;
  margin-bottom: 0.55rem;
}

.legal-block ul {
  margin: 0.45rem 0 0;
  padding-left: 1.1rem;
}

.legal-block li {
  margin-bottom: 0.35rem;
}

.notice {
  border-left: 4px solid var(--gold-500);
  background: #fffdf8;
  padding: 0.85rem 1rem;
  border-radius: 0 12px 12px 0;
}

.site-footer {
  margin: 1.8rem 0 1rem;
  padding: 1.2rem 1rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(100, 116, 139, 0.2);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
}

.footer-links a {
  color: var(--slate-600);
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: var(--slate-900);
}

.copyright {
  margin-top: 0.75rem;
  font-size: 0.83rem;
  color: var(--slate-500);
}

@media (max-width: 930px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .site-shell {
    width: min(var(--content-width), calc(100% - 1.4rem));
  }

  .site-header {
    margin-top: 0.55rem;
  }

  .nav-wrap {
    border-radius: 18px;
    padding: 0.8rem;
  }

  .top-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .main-content {
    padding-top: 1.4rem;
  }

  .hero {
    border-radius: 18px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}