:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #eef4fb;
  --text: #1f2937;
  --muted: #64748b;
  --heading: #0f172a;
  --line: #e2e8f0;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --accent-soft: #dbeafe;
  --success-soft: #ecfdf5;
  --warning-soft: #fff7ed;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
}

.container {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  max-width: 820px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(248, 250, 252, 0.86);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.brand-logo {
  display: block;
  width: 52px;
  height: 52px;
}

.brand-name {
  margin: 0;
  color: var(--heading);
  font-size: 1rem;
  font-weight: 700;
}

.brand-subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--accent);
}

.hero {
  padding: 108px 0 64px;
}

.hero-content {
  max-width: 900px;
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--heading);
  line-height: 1.22;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.8vw, 3.4rem);
  letter-spacing: -0.04em;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  letter-spacing: -0.04em;
}

h3 {
  margin: 0 0 12px;
  font-size: 1.18rem;
}

.hero-text {
  margin: 28px 0 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 14px 28px rgba(37, 99, 235, 0.2);
}

.button.primary:hover {
  background: var(--accent-dark);
}

.button.secondary {
  background: white;
  color: var(--heading);
  border-color: var(--line);
}

.button.secondary:hover {
  border-color: #bfdbfe;
  color: var(--accent);
}

.support-strip {
  padding: 0 0 72px;
}

.support-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.support-heading {
  margin-bottom: 22px;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.support-item {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}

.support-item span {
  width: 46px;
  height: 46px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 800;
}

.support-item p {
  margin: 0;
  color: var(--muted);
}

.section {
  padding: 76px 0;
}

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

.section-heading {
  max-width: 820px;
  margin-bottom: 30px;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card,
.scope-card,
.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 12px 36px rgba(15, 23, 42, 0.05);
}

.feature-card p,
.scope-card p {
  margin: 0;
  color: var(--muted);
}


.article-list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.article-link {
  display: block;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  color: var(--heading);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

.article-link:hover {
  border-color: #bfdbfe;
  color: var(--accent);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.scope-card ul {
  margin: 0;
  padding-left: 1.2em;
  color: var(--text);
}

.scope-card li + li {
  margin-top: 8px;
}

.scope-card.positive {
  background: linear-gradient(180deg, var(--surface), var(--success-soft));
}

.scope-card.negative {
  background: linear-gradient(180deg, var(--surface), var(--warning-soft));
}

.info-grid {
  display: grid;
  grid-template-columns: 0.65fr 1fr;
  gap: 40px;
  align-items: start;
}

.info-list {
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.info-list div {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}

.info-list div:last-child {
  border-bottom: 0;
}

.info-list dt {
  color: var(--muted);
  font-weight: 700;
}

.info-list dd {
  margin: 0;
  color: var(--heading);
}

.contact-section {
  padding: 80px 0 96px;
}

.contact-card {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

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

.contact-mail {
  display: inline-flex;
  margin-top: 10px;
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 800;
  text-decoration: none;
}

.contact-mail:hover {
  text-decoration: underline;
}

.contact-chat {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.contact-chat p {
  margin: 0 0 14px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 820px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .hero {
    padding: 64px 0 48px;
  }

  .support-grid,
  .feature-grid,
  .scope-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .info-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 28px, 1080px);
  }

  h1 {
    font-size: 2.3rem;
  }

  .site-nav {
    gap: 12px;
    font-size: 0.86rem;
  }

  .feature-card,
  .scope-card,
  .contact-card,
  .support-card {
    padding: 22px;
  }

  .support-item {
    padding: 20px;
  }
}