:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --ink: #1a2230;
  --muted: #5c6472;
  --primary: #1f4a7c;
  --primary-soft: rgba(31, 74, 124, 0.12);
  --accent: #dde7f2;
  --shadow: 0 18px 46px rgba(20, 30, 48, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Sora", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #f9fbff 0%, #f4f6fb 60%, #eef2f8 100%);
}

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

.shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 8vw;
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(244, 246, 251, 0.9);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.brand-name {
  font-size: 1.05rem;
}

.nav {
  display: flex;
  gap: 14px;
  font-size: 0.92rem;
}

.nav a {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(26, 34, 48, 0.08);
}

.content {
  flex: 1;
  padding: 20px 8vw 70px;
  display: grid;
  gap: 40px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  margin: 0 0 18px;
  font-family: "Source Serif 4", serif;
}

.hero-copy p {
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.7;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid rgba(26, 34, 48, 0.12);
  background: #fff;
  font-weight: 600;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow);
}

.btn.secondary {
  background: transparent;
}

.hero-card {
  background: var(--surface);
  padding: 28px;
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-badges {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.hero-badges span {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent);
  font-size: 0.8rem;
}

.section-title h2 {
  margin: 0 0 8px;
  font-family: "Source Serif 4", serif;
}

.section-title p {
  margin: 0;
  color: var(--muted);
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.how-grid article {
  background: var(--surface);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.cards {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border-radius: 22px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
}

.card-head {
  display: block;
  gap: 14px;
  align-items: center;
}

.card-head img {
  width: 100%;
  height: 70px;
  object-fit: contain;
}

.card-head h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
  flex: 1 1 auto;
}

.logo-placeholder {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--accent);
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--primary);
}

.logo-placeholder.large {
  width: 90px;
  height: 90px;
  border-radius: 24px;
}

.card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.75rem;
}

.filters {
  display: grid;
  grid-template-columns: minmax(220px, 260px) 1fr;
  gap: 20px;
  align-items: start;
}

.filter-panel,
.benefits {
  background: var(--surface);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.filter-panel label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chips span {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent);
  font-size: 0.8rem;
}

.detail-list {
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.seo-content {
  background: var(--surface);
  border-radius: 22px;
  padding: 24px;
  box-shadow: var(--shadow);
  line-height: 1.7;
  color: var(--muted);
}

.seo-content h2,
.seo-content h3 {
  color: var(--ink);
  margin-top: 0;
}

.disclaimer {
  background: var(--accent);
  border-radius: 18px;
  padding: 18px;
  color: var(--muted);
}

.footer {
  padding: 30px 8vw 40px;
  display: grid;
  gap: 12px;
  border-top: 1px solid rgba(26, 34, 48, 0.08);
  color: var(--muted);
}

.footer a {
  font-weight: 600;
}

.small {
  font-size: 0.85rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent);
  font-size: 0.8rem;
}

.rich p {
  margin: 0 0 14px;
}

.empty {
  text-align: center;
  padding: 80px 0;
}

@media (max-width: 900px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

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