:root {
  --color-primary: #D51F2A;
  --color-primary-dark: #A5101C;
  --color-ink: #1A1A1A;
  --color-ink-soft: #4A4A4A;
  --color-bg: #FFFFFF;
  --color-bg-alt: #FAF6F6;
  --color-border: #ECE1E1;
  --max-width: 820px;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary-dark);
}

a:hover {
  color: var(--color-primary);
}

header.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 24px;
}

.site-header__inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-ink);
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: block;
}

.brand span {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

nav.site-nav {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
}

nav.site-nav a {
  text-decoration: none;
  color: var(--color-ink-soft);
  font-weight: 500;
}

nav.site-nav a:hover,
nav.site-nav a[aria-current="page"] {
  color: var(--color-primary-dark);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

main.legal {
  max-width: 760px;
}

.legal h1 {
  font-size: 1.9rem;
  margin-bottom: 4px;
}

.legal .updated {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.legal h2 {
  font-size: 1.25rem;
  margin-top: 2.2em;
  margin-bottom: 0.6em;
  color: var(--color-primary-dark);
}

.legal h3 {
  font-size: 1.05rem;
  margin-top: 1.6em;
  margin-bottom: 0.5em;
}

.legal p,
.legal li {
  color: var(--color-ink-soft);
  font-size: 0.98rem;
}

.legal ul,
.legal ol {
  padding-left: 1.3em;
}

.legal li {
  margin-bottom: 0.4em;
}

.legal strong {
  color: var(--color-ink);
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0 1.6em;
  font-size: 0.92rem;
}

.legal th,
.legal td {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  vertical-align: top;
}

.legal th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

.callout {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 1.6em 0;
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

footer.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 28px 24px;
  color: var(--color-ink-soft);
  font-size: 0.88rem;
}

.site-footer__inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: center;
  justify-content: space-between;
}

.site-footer__links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-footer__links a {
  text-decoration: none;
  color: var(--color-ink-soft);
}

.site-footer__links a:hover {
  color: var(--color-primary-dark);
}

/* Landing page */
.hero {
  text-align: center;
  padding: 20px 0 8px;
}

.hero img.app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  box-shadow: 0 10px 30px rgba(213, 31, 42, 0.18);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 2.1rem;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.hero p.tagline {
  color: var(--color-ink-soft);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 28px;
}

.badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.badge {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  background: var(--color-bg-alt);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 56px 0;
}

.feature {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 22px;
}

.feature h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.feature p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

.section-title {
  font-size: 1.4rem;
  text-align: center;
  margin: 0 0 8px;
}

.section-sub {
  text-align: center;
  color: var(--color-ink-soft);
  max-width: 520px;
  margin: 0 auto 8px;
}

.exam-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 20px 0 8px;
}

.exam-pill {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.cta {
  background: var(--color-bg-alt);
  border-radius: 20px;
  padding: 40px 32px;
  text-align: center;
  margin-top: 56px;
}

.cta h2 {
  margin: 0 0 10px;
  font-size: 1.4rem;
}

.cta p {
  color: var(--color-ink-soft);
  margin: 0 0 20px;
}

.store-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.store-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-ink);
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.92rem;
}

.store-button.secondary {
  background: transparent;
  color: var(--color-ink);
  border: 1.5px solid var(--color-border);
}

.contact {
  margin-top: 56px;
  text-align: center;
}

.contact h2 {
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.contact p {
  color: var(--color-ink-soft);
}

@media (max-width: 560px) {
  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .hero h1 {
    font-size: 1.7rem;
  }
}