/* Caffeine Atlas homepage (index.html only).
   Every rule is scoped under body.landing so analyzer, board and account
   pages keep using styles.css unchanged. Fonts stay local: no web-font
   requests, which the privacy notice does not cover. */

body.landing {
  /* Only the existing Caffeine Atlas palette from styles.css :root. */
  --home-bg: var(--bg);
  --home-soft: var(--surface-soft);
  --home-surface: var(--surface);
  --home-ink: var(--ink);
  --home-muted: var(--muted);
  --home-line: var(--line);
  --home-teal: var(--teal);
  --home-teal-deep: var(--teal-dark);
  --home-teal-soft: #e9f6f7;
  --home-radius: 18px;
  margin: 0;
  background: var(--home-bg);
  color: var(--home-ink);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
}

body.landing h1,
body.landing h2,
body.landing h3 {
  margin: 0;
  color: var(--home-ink);
  letter-spacing: -0.02em;
}

body.landing p,
body.landing ul,
body.landing ol,
body.landing dl,
body.landing dd,
body.landing figure {
  margin: 0;
}

body.landing a:focus-visible {
  outline: 3px solid #367fdd;
  outline-offset: 3px;
  border-radius: 6px;
}

body.landing .home-wrap {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

/* Top bar */
body.landing .home-top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 246, 247, 0.94);
  border-bottom: 1px solid var(--home-line);
  backdrop-filter: blur(10px);
}

body.landing .home-top-bar {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 68px;
}

body.landing .home-logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

body.landing .home-logo img {
  display: block;
  width: 168px;
  height: auto;
}

body.landing .home-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 26px;
  margin-left: auto;
  font-size: 15px;
  font-weight: 600;
  color: var(--home-muted);
}

body.landing .home-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

body.landing .home-menu a:hover {
  color: var(--home-teal);
}

body.landing .home-top-cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--home-teal);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}

/* Buttons */
body.landing .home-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--home-teal);
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(8, 118, 110, 0.22);
}

body.landing .home-button:hover {
  background: var(--home-teal-deep);
}

body.landing .home-button-light {
  background: #fff;
  color: var(--home-teal-deep);
  box-shadow: none;
}

body.landing .home-button-light:hover {
  background: var(--home-teal-soft);
}

body.landing .home-text-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 4px;
  color: var(--home-teal);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 5px;
}

/* Hero */
body.landing .home-hero {
  padding: 80px 0 96px;
}

body.landing .home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 64px;
  align-items: center;
}

body.landing .home-kicker {
  margin-bottom: 14px;
  color: var(--home-teal);
  font-size: 15px;
  font-weight: 700;
}

body.landing .home-hero h1 {
  font-size: clamp(36px, 5.2vw, 60px);
  font-weight: 800;
  line-height: 1.18;
}

body.landing .home-lead {
  max-width: 540px;
  margin-top: 22px;
  color: var(--home-muted);
  font-size: 18px;
  line-height: 1.75;
}

body.landing .home-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 34px;
}

body.landing .home-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
  padding: 0;
  list-style: none;
}

body.landing .home-facts li {
  display: flex;
  flex-direction: column;
  min-width: 118px;
  padding: 12px 16px;
  border: 1px solid var(--home-line);
  border-radius: 14px;
  background: var(--home-surface);
  color: var(--home-muted);
  font-size: 13px;
  line-height: 1.5;
}

body.landing .home-facts strong {
  color: var(--home-ink);
  font-size: 18px;
}

body.landing .home-note {
  margin-top: 22px;
  color: var(--home-muted);
  font-size: 14px;
}

/* Sample result card */
body.landing .home-sample {
  position: relative;
  padding: 34px 32px 30px;
  border: 1px solid var(--home-line);
  border-radius: 26px;
  background: var(--home-surface);
  box-shadow: var(--shadow);
}

body.landing .home-sample-tag {
  position: absolute;
  top: 20px;
  right: 22px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--home-soft);
  color: var(--home-teal-deep);
  font-size: 13px;
  font-weight: 700;
}

body.landing .home-sample-type {
  color: var(--green);
  font-size: 20px;
  font-weight: 800;
}

body.landing .home-sample-type span {
  margin-left: 6px;
  color: var(--home-muted);
  font-size: 14px;
  font-weight: 600;
}

body.landing .home-sample-score {
  margin-top: 10px;
  color: var(--home-ink);
  font-size: 64px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
}

body.landing .home-sample-score small {
  margin-left: 4px;
  color: var(--home-muted);
  font-size: 20px;
  font-weight: 600;
}

body.landing .home-sample-title {
  margin-top: 12px;
  font-weight: 700;
}

body.landing .home-sample-bars {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

body.landing .home-sample-bars div {
  display: grid;
  grid-template-columns: 84px 1fr 40px;
  gap: 12px;
  align-items: center;
}

body.landing .home-sample-bars dd.home-bar-value {
  height: auto;
  overflow: visible;
  background: none;
  color: var(--home-ink);
  font-size: 13px;
  font-weight: 700;
  text-align: right;
}

body.landing .home-sample-genotypes {
  margin-top: 14px;
  color: var(--home-muted);
  font-size: 12px;
  line-height: 1.6;
}

body.landing .home-sample-genotypes span {
  white-space: nowrap;
}

body.landing .home-sample-bars dt {
  color: var(--home-muted);
  font-size: 13px;
  font-weight: 600;
}

body.landing .home-sample-bars dd {
  height: 10px;
  border-radius: 999px;
  background: var(--home-soft);
  overflow: hidden;
}

body.landing .home-sample-bars i {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), var(--amber));
}

body.landing .home-sample-tip {
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--home-teal-soft);
  color: var(--home-teal-deep);
  font-size: 14px;
  line-height: 1.6;
}

/* Sections */
body.landing .home-section {
  padding: 96px 0;
  scroll-margin-top: 68px;
}

body.landing .home-section-soft {
  background: var(--home-soft);
}

body.landing .home-section h2 {
  max-width: 720px;
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
  line-height: 1.3;
}

body.landing .home-section-lead {
  max-width: 720px;
  margin-top: 18px;
  color: var(--home-muted);
  font-size: 17px;
}

body.landing #process {
  scroll-margin-top: 120px;
}

/* Steps */
body.landing .home-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
  margin-top: 48px;
  padding: 0;
  list-style: none;
}

body.landing .home-steps li {
  padding-top: 22px;
  border-top: 2px solid var(--home-ink);
}

body.landing .home-steps span {
  display: block;
  color: var(--home-teal);
  font-size: 15px;
  font-weight: 800;
}

body.landing .home-steps h3 {
  margin-top: 8px;
  font-size: 21px;
  font-weight: 800;
}

body.landing .home-steps p {
  margin-top: 10px;
  color: var(--home-muted);
}

/* Result types */
body.landing .home-types {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 44px;
}

body.landing .home-type {
  padding: 30px 28px;
  border-top: 5px solid var(--type-accent);
  border-radius: var(--home-radius);
  background: var(--type-tint);
}

/* Same low-to-high scale as the analyzer gauge: green, amber, coral. */
body.landing .home-type-fast { --type-accent: var(--green); --type-tint: #eef8f1; }
body.landing .home-type-mid { --type-accent: var(--amber); --type-tint: #fff6df; }
body.landing .home-type-slow { --type-accent: var(--coral); --type-tint: #fff2ef; }

body.landing .home-type-band {
  color: var(--home-muted);
  font-size: 13px;
  font-weight: 700;
}

body.landing .home-type h3 {
  margin-top: 10px;
  color: var(--home-ink);
  font-size: 28px;
  font-weight: 800;
}

body.landing .home-type-badge {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--home-surface);
  color: var(--home-ink);
  font-size: 13px;
  font-weight: 700;
}

body.landing .home-type p:last-child {
  margin-top: 16px;
  color: var(--home-ink);
  font-size: 15px;
}

body.landing .home-type-extra {
  margin-top: 24px;
  color: var(--home-muted);
  font-size: 15px;
}

/* Scoring model */
body.landing .home-layers {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 44px;
}

body.landing .home-layer {
  padding: 32px;
  border: 1px solid var(--home-line);
  border-radius: var(--home-radius);
  background: var(--home-surface);
}

body.landing .home-layer-weight {
  color: var(--home-teal);
  font-size: 40px;
  font-weight: 800;
  line-height: 1;
}

body.landing .home-layer h3 {
  margin-top: 12px;
  font-size: 22px;
  font-weight: 800;
}

body.landing .home-layer > p:not(.home-layer-weight) {
  margin-top: 8px;
  color: var(--home-muted);
}

body.landing .home-layer ul {
  margin-top: 20px;
  padding: 0;
  list-style: none;
}

body.landing .home-layer li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--home-line);
  font-weight: 600;
}

body.landing .home-layer code {
  margin-left: 4px;
  color: var(--home-muted);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
}

body.landing .home-layer em {
  color: var(--home-teal);
  font-style: normal;
  font-weight: 800;
}

body.landing .home-layer .home-layer-note {
  margin-top: 14px;
  color: var(--home-muted);
  font-weight: 600;
  font-size: 14px;
}

body.landing .home-limits {
  margin-top: 40px;
  padding: 28px 32px;
  border-radius: var(--home-radius);
  background: var(--home-soft);
}

body.landing .home-limits h3 {
  font-size: 18px;
  font-weight: 800;
}

body.landing .home-limits ul {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding-left: 20px;
  color: var(--home-muted);
}

/* Support */
body.landing .home-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

body.landing .home-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

body.landing .home-support-links a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--home-ink);
  border-radius: 999px;
  font-weight: 700;
}

body.landing .home-support-links a:hover {
  background: var(--home-surface);
}

body.landing .home-contact {
  display: grid;
  gap: 18px;
  padding: 28px 30px;
  border-radius: var(--home-radius);
  background: var(--home-surface);
}

body.landing .home-contact dt {
  color: var(--home-muted);
  font-size: 13px;
  font-weight: 600;
}

body.landing .home-contact dd {
  margin-top: 2px;
  font-weight: 600;
}

body.landing .home-contact a {
  color: var(--home-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Final call to action and footer */
body.landing .home-final {
  padding: 72px 0;
  background: var(--home-teal-deep);
}

body.landing .home-final-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

body.landing .home-final h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
}

body.landing .home-footer {
  padding: 32px 0 44px;
  color: var(--home-muted);
  font-size: 14px;
}

body.landing .home-footer .policy-links {
  margin-top: 8px;
}

body.landing .home-footer a {
  color: var(--home-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Tablet: stack the hero, keep three-up rows readable without orphans. */
@media (max-width: 1080px) {
  body.landing .home-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
  }
  body.landing .home-sample {
    max-width: 520px;
  }
  body.landing .home-steps,
  body.landing .home-types {
    gap: 16px;
  }
  body.landing .home-type {
    padding: 24px 20px;
  }
}

/* Phone */
@media (max-width: 760px) {
  body.landing .home-wrap {
    width: calc(100% - 40px);
  }
  body.landing .home-top {
    position: static;
  }
  body.landing .home-top-bar {
    flex-wrap: wrap;
    gap: 4px 16px;
    padding: 12px 0 6px;
  }
  body.landing .home-logo img {
    width: 150px;
  }
  body.landing .home-top-cta {
    display: none;
  }
  body.landing .home-menu {
    width: 100%;
    margin-left: 0;
    gap: 0 18px;
    font-size: 15px;
  }
  body.landing .home-hero {
    padding: 40px 0 64px;
  }
  body.landing .home-lead {
    font-size: 16px;
  }
  body.landing .home-hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  body.landing .home-button {
    width: 100%;
  }
  body.landing .home-text-link {
    justify-content: center;
  }
  body.landing .home-facts li {
    flex: 1 1 0;
    min-width: 0;
    padding: 10px 12px;
  }
  body.landing .home-facts strong {
    font-size: 16px;
  }
  body.landing .home-sample {
    padding: 28px 22px 24px;
  }
  body.landing .home-sample-score {
    font-size: 52px;
  }
  body.landing .home-section {
    padding: 64px 0;
  }
  body.landing .home-steps,
  body.landing .home-types,
  body.landing .home-layers,
  body.landing .home-support {
    grid-template-columns: minmax(0, 1fr);
  }
  body.landing .home-steps {
    gap: 28px;
    margin-top: 32px;
  }
  body.landing .home-types,
  body.landing .home-layers {
    margin-top: 32px;
  }
  body.landing .home-layer,
  body.landing .home-limits,
  body.landing .home-contact {
    padding: 24px 22px;
  }
  body.landing .home-support {
    gap: 32px;
  }
  body.landing .home-final {
    padding: 56px 0;
  }
  body.landing .home-final-inner .home-button {
    width: 100%;
  }
}