/* ============================================================
   HealthLens — official website styles
   Editorial paper style · warm neutrals · orange accent #FF8C42
   ============================================================ */

:root {
  --paper: #F7F5F1;
  --paper-deep: #F0EDE6;
  --card: #FCFBF8;
  --ink: #211E1A;
  --ink-soft: #3A362F;
  --muted: #6B6459;
  --muted-light: #938C7F;
  --line: #E4DED3;
  --line-strong: #CFC7B8;
  --orange: #FF8C42;
  --orange-deep: #EF7A2B;
  --orange-soft: #FFE3CC;
  --green: #2E7D5B;
  --green-soft: #DCEDE3;
  --amber: #B7791F;
  --amber-soft: #F7E9C8;
  --neutral-soft: #E9E5DC;
  --serif: Georgia, "Times New Roman", "Songti SC", "Noto Serif CJK SC", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans", "Noto Sans CJK SC", "Noto Sans JP", sans-serif;
  --radius: 14px;
  --shadow-soft: 0 1px 2px rgba(33, 30, 26, 0.04), 0 8px 24px rgba(33, 30, 26, 0.05);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--orange-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--orange); }

.container {
  width: min(1120px, 100% - 2.5rem);
  margin-inline: auto;
}
.container-narrow { width: min(820px, 100% - 2.5rem); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  border-radius: 0 0 8px 0;
  z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Typography helpers ---------- */
.kicker {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange-deep);
  margin: 0 0 0.9rem;
}
.kicker-light { color: var(--orange); }

.section-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  line-height: 1.18;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}
.section-title-light { color: var(--paper); }

.section-intro {
  color: var(--muted);
  max-width: 58ch;
  margin: 0;
}
.section-intro-light { color: #CFC8BC; }

.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-paper { background: var(--paper-deep); }
.section-head { margin-bottom: clamp(2rem, 5vw, 3.2rem); }
.section-head-light { color: var(--paper); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.btn-lg { padding: 0.9rem 1.7rem; font-size: 1rem; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
}
.btn-primary:hover {
  background: var(--orange-deep);
  border-color: var(--orange-deep);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover { border-color: var(--ink); background: var(--paper-deep); }

/* ---------- Badges & evidence tags ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-orange { background: var(--orange-soft); color: var(--orange-deep); }

.ev-tag {
  display: inline-block;
  padding: 0.12rem 0.55rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  white-space: nowrap;
}
.ev-official { background: var(--green-soft); color: var(--green); }
.ev-observed { background: var(--orange-soft); color: var(--orange-deep); }
.ev-possible { background: var(--amber-soft); color: var(--amber); }
.ev-unknown  { background: var(--neutral-soft); color: var(--muted); }

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.4rem;
  vertical-align: baseline;
}
.dot-orange { background: var(--orange); }

/* ============================================================
   Header / nav
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 245, 241, 0.88);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.05rem;
}
.brand img { border-radius: 7px; }
.brand-name { font-family: var(--serif); font-weight: 700; }

.nav-links {
  display: flex;
  gap: 1.4rem;
  margin-left: auto;
}
.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--orange-deep); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-cta { padding: 0.5rem 1.1rem; font-size: 0.88rem; }

/* ---------- Language switch ---------- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 2px;
}
.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.lang-btn:hover { color: var(--ink); }
.lang-btn.is-active {
  background: var(--ink);
  color: var(--paper);
}

/* ============================================================
   Hero
   ============================================================ */
.hero { padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4.5rem); }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.hero-pulse {
  width: min(240px, 100%);
  height: 24px;
  color: var(--orange);
  margin-bottom: 1.2rem;
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 5.4vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 1.3rem;
}
.hero-title em {
  font-style: italic;
  color: var(--orange-deep);
}

.hero-sub {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 1.6rem;
}

.hero-note {
  display: flex;
  align-items: center;
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- Phone mock ---------- */
.hero-mock {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
}

.phone {
  width: min(100%, 320px);
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 44px;
  padding: 12px;
  box-shadow: var(--shadow-soft);
}

.phone-notch {
  width: 118px;
  height: 26px;
  margin: 6px auto 8px;
  background: var(--ink);
  border-radius: 999px;
}

.phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 8px 10px;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 600;
}
.phone-batt {
  width: 24px;
  height: 12px;
  border: 1.5px solid var(--ink-soft);
  border-radius: 3px;
  position: relative;
}
.phone-batt::after {
  content: "";
  position: absolute;
  inset: 2px;
  width: 62%;
  background: var(--green);
  border-radius: 1px;
}

.mock-body {
  background: var(--paper);
  border-radius: 30px;
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
}

.mock-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 14px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink);
}
.mock-nav-tabs { display: flex; gap: 5px; }
.mock-nav-tabs i {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--line-strong);
}
.mock-nav-tabs i:first-child { background: var(--orange); }

.mock-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 1px 2px rgba(33,30,26,0.03);
}

.mock-metric {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 12px;
}
.mock-metric-name {
  font-size: 0.92rem;
  font-weight: 700;
  margin: 0 0 2px;
}
.mock-metric-src {
  font-size: 0.74rem;
  color: var(--muted);
  margin: 0;
}

.mock-value {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  transition: opacity 0.2s ease;
}
.mock-value.is-switching { opacity: 0.35; }
.mock-unit {
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
  margin-left: 4px;
}

.mock-spark {
  color: var(--orange);
  height: 56px;
  margin-bottom: 14px;
}
.mock-spark svg { width: 100%; height: 100%; }
.mock-spark polyline { transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1); }

.mock-diag {
  border-top: 1px dashed var(--line-strong);
  padding-top: 12px;
}
.mock-diag-title {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 8px;
}

.mock-evidence {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}
.mock-evidence li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--ink-soft);
}
.mock-evidence .ev-tag { flex: none; }

.mock-tabs {
  display: flex;
  gap: 0.4rem;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px;
}
.mock-tab {
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  padding: 0.42rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.mock-tab:hover { color: var(--ink); }
.mock-tab.is-active { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgba(33,30,26,0.1); }

.mock-caption {
  font-size: 0.76rem;
  color: var(--muted-light);
  margin: 0;
  text-align: center;
}

/* ============================================================
   Story (three questions)
   ============================================================ */
.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3.5vw, 3rem);
}

.story-item { border-top: 1px solid var(--line-strong); padding-top: 1.4rem; }
.story-num {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--orange-deep);
  margin-bottom: 0.6rem;
}
.story-item h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  margin: 0 0 0.6rem;
}
.story-item p { margin: 0; color: var(--muted); }

/* ============================================================
   Metrics catalog
   ============================================================ */
.metric-block { margin-bottom: 2.4rem; }
.metric-block:last-of-type { margin-bottom: 1.6rem; }

.metric-group-label {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 0 0 0.9rem;
}

.metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.metric-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 1.5rem;
  align-items: baseline;
  padding: 1rem 0.4rem;
  border-bottom: 1px solid var(--line);
  counter-increment: metric;
}
.metric-list li::before {
  content: counter(metric, decimal-leading-zero);
  font-family: var(--serif);
  font-style: italic;
  color: var(--muted-light);
  font-size: 0.85rem;
  margin-right: 0.4rem;
}
.metric-name { font-weight: 600; color: var(--ink); }
.metric-desc { color: var(--muted); font-size: 0.95rem; }
.metric-list { counter-reset: metric; }

.metric-footnote {
  font-size: 0.88rem;
  color: var(--muted);
  font-style: italic;
  margin: 1.2rem 0 0;
}

/* ============================================================
   Diagnosis demo
   ============================================================ */
.diag-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.ev-legend {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}
.ev-legend li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.ev-legend .ev-tag { width: 5.6rem; text-align: center; }

.diag-panel {
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 2rem);
  box-shadow: var(--shadow-soft);
}
.diag-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.diag-panel-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.25rem;
}
.diag-panel-status { font-size: 0.95rem; color: var(--ink-soft); margin: 0 0 1.1rem; }
.diag-panel-label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 0.7rem;
}
.diag-evidence {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}
.diag-evidence li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  border-bottom: 1px dashed var(--line);
  padding-bottom: 0.65rem;
}
.diag-evidence li:last-child { border-bottom: 0; padding-bottom: 0; }
.diag-evidence .ev-tag { flex: none; }

/* ============================================================
   Privacy (ink section)
   ============================================================ */
.section-ink { background: var(--ink); color: var(--paper); }

.privacy-list { margin: 0 0 2rem; }
.privacy-row {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(247, 245, 241, 0.14);
}
.privacy-row:first-child { border-top: 1px solid rgba(247, 245, 241, 0.14); }
.privacy-row dt {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  font-family: var(--serif);
  font-size: 1.18rem;
  font-weight: 700;
}
.privacy-num {
  font-style: italic;
  font-size: 0.9rem;
  color: var(--orange);
}
.privacy-row dd { margin: 0; color: #CFC8BC; font-size: 0.98rem; }

.privacy-cta { margin: 0; }
.privacy-cta a { color: var(--orange); font-weight: 600; }
.privacy-cta a:hover { color: #ffb27e; }

/* ============================================================
   Pricing
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.pricing-copy p:not(.pricing-price):not(.kicker) { color: var(--muted); max-width: 46ch; }

.pricing-price {
  margin: 1.8rem 0 0;
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.price-amount {
  font-family: var(--serif);
  font-size: 3.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}
.price-period { color: var(--muted); font-size: 0.95rem; }

.pricing-card {
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(1.6rem, 3.5vw, 2.4rem);
  box-shadow: var(--shadow-soft);
}
.pricing-card-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin: 0 0 1.1rem;
}
.pricing-features {
  list-style: none;
  margin: 0 0 1.6rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.pricing-features li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.97rem;
  color: var(--ink-soft);
}
.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--orange-deep);
  font-weight: 700;
}
.pricing-note {
  margin: 0.9rem 0 0;
  font-size: 0.8rem;
  color: var(--muted-light);
  text-align: center;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { display: grid; gap: 0.8rem; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0 1.4rem;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  padding: 1.1rem 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--orange-deep);
  transition: transform 0.2s ease;
  flex: none;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin: 0;
  padding: 0 0 1.2rem;
  color: var(--muted);
  font-size: 0.97rem;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--paper-deep);
  padding: 2.6rem 0 2.2rem;
}
.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.05rem;
}
.footer-brand img { border-radius: 6px; }
.footer-tagline {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.9rem;
}
.footer-sep { color: var(--muted-light); }
.footer-legal {
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted-light);
}
.footer-legal p { margin: 0.3rem 0; }

/* ============================================================
   Privacy page (shared styles)
   ============================================================ */
.privacy-page { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.privacy-page h1 {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.9rem);
  margin: 0 0 0.4rem;
}
.privacy-page .effective {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 2.2rem;
}
.privacy-page .policy-body { max-width: 72ch; }
.privacy-page h2 {
  font-family: var(--serif);
  font-size: 1.4rem;
  margin: 2.4rem 0 0.7rem;
}
.privacy-page p { color: var(--ink-soft); margin: 0 0 1rem; }
.privacy-page ul { color: var(--ink-soft); padding-left: 1.3rem; }
.privacy-page li { margin-bottom: 0.4rem; }
.privacy-page .contact-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  margin-top: 1rem;
}
.privacy-page .contact-box p { margin: 0.3rem 0; }
.privacy-back { margin-bottom: 2rem; display: inline-block; }

[hidden] { display: none !important; }

/* ============================================================
   Entrance animation
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .story-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .diag-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-copy { order: 1; }
  .pricing-card { order: 2; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-actions { margin-left: auto; }
}

@media (max-width: 720px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mock { order: -1; }
  .privacy-row { grid-template-columns: 1fr; gap: 0.5rem; }
  .metric-list li { grid-template-columns: 1fr; gap: 0.2rem; }
  .metric-list li::before { display: none; }
  .nav-cta { display: none; }
}