:root {
  --sky-1: #EAF1FF;
  --sky-2: #C3D8F7;
  --sky-3: #9DBDEC;
  --cobalt: #2B58D6;
  --ink: #12213F;
  --ink-soft: #33415F;
  --ink-muted: #4A5876;
  --label: #2B4FAA;
  --line: #D9E4F5;
  --white: #FFFFFF;
  --base: #F5F7FA;
  --font-mono: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

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

body {
  background: var(--base);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-weight: 500;
  font-size: 13px;
  padding: 13px 20px;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.btn-solid {
  background: var(--cobalt);
  color: var(--white);
  border: 1px solid var(--cobalt);
  box-shadow: 0 12px 28px -12px rgba(43, 88, 214, 0.55);
}
.btn-solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -10px rgba(43, 88, 214, 0.65);
}
.btn-outline {
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink);
  border: 1.5px solid rgba(18, 33, 63, 0.18);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.85);
  transform: translateY(-2px);
}

.logo-mark { display: inline-flex; align-items: center; gap: 10px; }
.logo-word {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-weight: 700;
  font-size: clamp(14px, 2.5vw, 18px);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.site-nav {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px clamp(20px, 4vw, 56px);
}

.page-top {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.page-top-mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, var(--sky-1) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 85% 30%, var(--sky-2) 0%, transparent 50%),
    linear-gradient(160deg, var(--sky-1) 0%, var(--sky-2) 55%, #E8F0FC 100%);
}

.page-intro {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 12px clamp(20px, 5vw, 56px) 56px;
}
.section-label {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--label);
  margin-bottom: 12px;
}
.page-intro-title {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-weight: 700;
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink);
  margin: 0 0 14px;
}
.page-intro-sub {
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 18px;
}
.page-meta {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

.section {
  padding: clamp(48px, 8vh, 80px) clamp(20px, 5vw, 56px);
  flex: 1;
}
.section-inner { max-width: 720px; margin: 0 auto; }

.home-body { background: var(--white); }
.home-lead {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 28px;
}
.content-block {
  margin: 0 0 36px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}
.content-block:last-of-type { border-bottom: none; }
.content-block h2 {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-weight: 700;
  font-size: clamp(20px, 2.8vw, 24px);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 14px;
}
.content-block p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.content-block a,
.home-notice a,
.page-meta a,
.footer-bottom a {
  color: var(--cobalt);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.feature-list {
  margin: 8px 0 0;
  padding-left: 1.2em;
  color: var(--ink-soft);
}
.feature-list li {
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 10px;
}
.purpose-block {
  border-bottom: none;
  margin-bottom: 28px;
  padding: 22px 22px 8px;
  border-left: 3px solid var(--cobalt);
  background: linear-gradient(135deg, #F7FAFF 0%, #EEF4FF 100%);
}
.home-notice {
  margin: 0 0 32px;
  padding: 20px 22px;
  border-left: 3px solid var(--cobalt);
  background: linear-gradient(135deg, #F7FAFF 0%, #EEF4FF 100%);
}
.home-notice p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
}
.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.legal-section { background: var(--white); }
.legal-block {
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.legal-block h2 {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-weight: 700;
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 22px;
}
.legal-block h3 {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 22px 0 8px;
}
.legal-block p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.legal-block ul {
  margin: 8px 0 14px;
  padding-left: 1.2em;
  color: var(--ink-soft);
}
.legal-block li {
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 8px;
}
.legal-block a,
.legal-note a,
.home-lead a {
  color: var(--cobalt);
  text-decoration: underline;
  text-decoration-color: rgba(43, 88, 214, 0.35);
  text-underline-offset: 3px;
}
.legal-block a:hover,
.legal-note a:hover {
  text-decoration-color: var(--cobalt);
}
.legal-note {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-muted);
  margin: 0;
}

.site-footer {
  padding: 28px clamp(20px, 5vw, 56px);
  background: linear-gradient(165deg, #FFFFFF 0%, #F3F7FF 48%, #DCE8FA 100%);
  border-top: 1px solid var(--line);
  text-align: center;
}
.footer-bottom {
  font-family: var(--font-mono);
  font-variant-ligatures: none;
  font-feature-settings: "liga" 0, "calt" 0;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}