@import url("https://fontlibrary.org//face/hk-grotesk");

:root {
  --xi-blue: #2563eb;
  --xi-violet: #7c3aed;
  --xi-deep: #0f172a;
  --xi-gray: #64748b;
  --xi-white: #ffffff;
  --xi-surface: #f8fafc;
  --xi-line: #e2e8f0;
  --xi-soft-blue: #eff6ff;
  --xi-soft-violet: #f5f3ff;
  --xi-success: #15803d;
  --xi-warning: #b45309;
  --xi-danger: #b91c1c;
  --font-brand: "HK Grotesk", "Hanken Grotesk", Inter, Arial, sans-serif;
  --container: 1180px;
  --reading: 780px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 30px 80px rgba(15, 23, 42, 0.12);
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 7rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--xi-white);
  color: var(--xi-deep);
  font-family: var(--font-brand);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--xi-blue); text-decoration-thickness: 1.5px; text-underline-offset: 0.2em; }
a:hover { color: var(--xi-violet); }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.32); outline-offset: 3px; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: var(--xi-deep); color: white; padding: 0.7rem 1rem; border-radius: var(--radius-sm); }
.skip-link:focus { top: 1rem; }
.container { width: min(calc(100% - 3rem), var(--container)); margin-inline: auto; }
.section { padding-block: var(--space-8); }
.section--soft { background: var(--xi-surface); border-block: 1px solid var(--xi-line); }
.eyebrow { margin: 0 0 var(--space-3); color: var(--xi-blue); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; }
.display { max-width: 820px; margin: 0; font-size: clamp(2.75rem, 6vw, 5.8rem); font-weight: 700; letter-spacing: -0.055em; line-height: 0.98; }
.display span, .gradient-text { color: var(--xi-blue); background: linear-gradient(110deg, var(--xi-blue), var(--xi-violet)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section-title { max-width: 760px; margin: 0; font-size: clamp(2rem, 4vw, 3.5rem); font-weight: 650; letter-spacing: -0.04em; line-height: 1.08; }
.lead { max-width: 680px; margin: var(--space-4) 0 0; color: var(--xi-gray); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.muted { color: var(--xi-gray); }
.button-row { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }
.btn { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 0.65rem; padding: 0.75rem 1.15rem; border: 1px solid transparent; border-radius: var(--radius-sm); font-weight: 650; line-height: 1; text-decoration: none; transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, box-shadow 160ms ease; }
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--xi-blue); color: white; box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22); }
.btn--primary:hover { background: #1d4ed8; color: white; }
.btn--secondary { border-color: #cbd5e1; background: white; color: var(--xi-deep); }
.btn--secondary:hover { border-color: var(--xi-blue); color: var(--xi-blue); }
.btn--danger { background: var(--xi-danger); color: white; }
.btn--danger:hover { background: #991b1b; color: white; }
.arrow { font-size: 1.2em; line-height: 0; }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(226, 232, 240, 0.9); background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(16px); }
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); }
.brand { display: inline-flex; align-items: center; gap: 0.8rem; color: var(--xi-deep); text-decoration: none; }
.brand:hover { color: var(--xi-deep); }
.brand__symbol { width: 38px; height: 38px; border: 1px solid var(--xi-line); border-radius: 9px; object-fit: cover; }
.brand__copy { display: grid; line-height: 1; }
.brand__name { font-size: 1.18rem; font-weight: 700; letter-spacing: -0.035em; }
.brand__slogan { margin-top: 0.34rem; color: var(--xi-gray); font-size: 0.56rem; font-weight: 650; letter-spacing: 0.13em; }
.nav { display: flex; align-items: center; gap: 0.25rem; }
.nav a { padding: 0.58rem 0.75rem; border-radius: 8px; color: var(--xi-gray); font-size: 0.92rem; font-weight: 600; text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--xi-soft-blue); color: var(--xi-blue); }
.nav .nav-cta { margin-left: 0.4rem; background: var(--xi-deep); color: white; }
.nav .nav-cta:hover { background: var(--xi-blue); color: white; }
.menu-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border: 1px solid var(--xi-line); border-radius: 10px; background: white; color: var(--xi-deep); cursor: pointer; }
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after { display: block; width: 19px; height: 2px; border-radius: 2px; background: currentColor; content: ""; transition: transform 160ms ease; }
.menu-toggle span::before { transform: translateY(-6px); }
.menu-toggle span::after { transform: translateY(4px); }

.hero { position: relative; overflow: hidden; padding-block: clamp(5rem, 11vw, 9rem); }
.hero::before { position: absolute; inset: 0; z-index: -2; background: radial-gradient(circle at 85% 10%, rgba(124, 58, 237, 0.12), transparent 30%), radial-gradient(circle at 10% 65%, rgba(37, 99, 235, 0.10), transparent 34%); content: ""; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr); align-items: center; gap: clamp(3rem, 7vw, 7rem); }
.hero-copy .lead { max-width: 610px; }
.hero-mark { position: relative; min-height: 460px; display: grid; place-items: center; }
.hero-mark::before, .hero-mark::after { position: absolute; z-index: -1; border-radius: 999px; content: ""; filter: blur(1px); }
.hero-mark::before { width: 390px; height: 390px; background: linear-gradient(145deg, rgba(37, 99, 235, 0.17), rgba(124, 58, 237, 0.16)); }
.hero-mark::after { width: 280px; height: 280px; border: 1px solid rgba(37, 99, 235, 0.18); transform: rotate(16deg); }
.symbol-card { width: min(78%, 330px); aspect-ratio: 1; display: grid; place-items: center; padding: 3rem; border: 1px solid rgba(226, 232, 240, 0.85); border-radius: 34px; background: rgba(255, 255, 255, 0.88); box-shadow: var(--shadow-lg); transform: rotate(-4deg); }
.symbol-card img { width: 100%; border-radius: 18px; }
.proof-strip { border-block: 1px solid var(--xi-line); }
.proof-grid { min-height: 92px; display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; }
.proof-item { padding: 0.5rem var(--space-5); border-left: 1px solid var(--xi-line); }
.proof-item:first-child { padding-left: 0; border-left: 0; }
.proof-item strong { display: block; font-size: 1rem; }
.proof-item span { color: var(--xi-gray); font-size: 0.86rem; }

.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); margin-top: var(--space-6); }
.card { position: relative; overflow: hidden; padding: clamp(1.5rem, 4vw, 2.5rem); border: 1px solid var(--xi-line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-sm); }
.card::after { position: absolute; right: -40px; bottom: -60px; width: 160px; height: 160px; border-radius: 999px; background: rgba(37, 99, 235, 0.05); content: ""; }
.card--violet::after { background: rgba(124, 58, 237, 0.07); }
.card-kicker { color: var(--xi-blue); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.card h3 { margin: 0.7rem 0 0; font-size: 1.65rem; letter-spacing: -0.035em; }
.card p { max-width: 520px; margin: 0.8rem 0 0; color: var(--xi-gray); }
.card-link { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 1.3rem; font-weight: 650; text-decoration: none; }
.status { display: inline-flex; align-items: center; gap: 0.45rem; margin-top: 1.4rem; padding: 0.38rem 0.65rem; border-radius: 999px; background: var(--xi-soft-blue); color: var(--xi-blue); font-size: 0.78rem; font-weight: 650; }
.status::before { width: 7px; height: 7px; border-radius: 50%; background: currentColor; content: ""; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-6); }
.principle { padding-top: var(--space-4); border-top: 2px solid var(--xi-deep); }
.principle:nth-child(2) { border-color: var(--xi-blue); }
.principle:nth-child(3) { border-color: var(--xi-violet); }
.principle strong { font-size: 1.08rem; }
.principle p { margin: 0.45rem 0 0; color: var(--xi-gray); font-size: 0.94rem; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); padding: clamp(2rem, 6vw, 4rem); border-radius: var(--radius-lg); background: var(--xi-deep); color: white; }
.cta-panel h2 { max-width: 640px; margin: 0; font-size: clamp(2rem, 4vw, 3.4rem); letter-spacing: -0.045em; line-height: 1.06; }
.cta-panel p { margin: 0.8rem 0 0; color: #cbd5e1; }
.cta-panel .btn--primary { flex: 0 0 auto; }

.product-hero { padding-block: clamp(4.5rem, 9vw, 7.5rem); background: linear-gradient(145deg, var(--xi-deep), #172554 70%, #312e81); color: white; }
.product-hero .eyebrow { color: #93c5fd; }
.product-hero .lead { color: #cbd5e1; }
.product-ui { padding: 1rem; border: 1px solid rgba(255,255,255,0.16); border-radius: 28px; background: rgba(255,255,255,0.08); box-shadow: 0 35px 90px rgba(2,6,23,0.4); transform: rotate(2deg); }
.product-ui__inner { padding: 1.25rem; border-radius: 20px; background: white; color: var(--xi-deep); }
.ui-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 1rem; border-bottom: 1px solid var(--xi-line); }
.ui-top strong { font-size: 1.05rem; }
.ui-pill { padding: 0.25rem 0.55rem; border-radius: 999px; background: var(--xi-soft-blue); color: var(--xi-blue); font-size: 0.7rem; font-weight: 700; }
.dose { display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 0.8rem; padding: 1rem 0; border-bottom: 1px solid var(--xi-line); }
.dose:last-child { border-bottom: 0; }
.dose-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; background: var(--xi-soft-violet); color: var(--xi-violet); font-weight: 750; }
.dose small { display: block; color: var(--xi-gray); }
.dose time { color: var(--xi-blue); font-weight: 700; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-6); }
.feature { padding: var(--space-5); border: 1px solid var(--xi-line); border-radius: var(--radius-md); background: white; }
.feature-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 11px; background: var(--xi-soft-blue); color: var(--xi-blue); font-weight: 750; }
.feature:nth-child(even) .feature-icon { background: var(--xi-soft-violet); color: var(--xi-violet); }
.feature h3 { margin: 1.1rem 0 0.45rem; font-size: 1.05rem; }
.feature p { margin: 0; color: var(--xi-gray); font-size: 0.9rem; }
.notice { margin-top: var(--space-5); padding: 1.1rem 1.25rem; border-left: 4px solid var(--xi-warning); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: #fffbeb; color: #78350f; }

.page-hero { padding-block: var(--space-7); border-bottom: 1px solid var(--xi-line); background: linear-gradient(180deg, var(--xi-surface), white); }
.page-hero h1 { max-width: 820px; margin: 0; font-size: clamp(2.4rem, 5vw, 4.5rem); letter-spacing: -0.05em; line-height: 1; }
.page-hero .lead { max-width: 740px; }
.legal-layout { width: min(calc(100% - 3rem), var(--reading)); margin: var(--space-6) auto var(--space-8); }
.legal-layout h1 { display: none; }
.legal-layout h2 { margin: var(--space-6) 0 var(--space-3); padding-bottom: 0.55rem; border-bottom: 1px solid var(--xi-line); color: var(--xi-deep); font-size: 1.35rem; letter-spacing: -0.02em; }
.legal-layout h3 { margin: var(--space-5) 0 0.7rem; font-size: 1.05rem; }
.legal-layout p { margin: 0 0 1rem; color: #334155; }
.legal-layout ul, .legal-layout ol { margin: 0 0 1.25rem; padding-left: 1.4rem; color: #334155; }
.legal-layout li { margin-bottom: 0.42rem; }
.legal-layout code { padding: 0.15rem 0.35rem; border-radius: 5px; background: var(--xi-surface); font-size: 0.88em; }
.doc-meta { display: flex; flex-wrap: wrap; gap: 0.55rem 1.5rem; margin-bottom: var(--space-6); padding: 1rem 1.2rem; border: 1px solid var(--xi-line); border-radius: var(--radius-sm); background: var(--xi-surface); color: var(--xi-gray); font-size: 0.86rem; }
.placeholder { color: var(--xi-warning); font-style: italic; }
.table-scroll { overflow-x: auto; }
table { display: block; width: 100%; max-width: 100%; margin: 1rem 0 1.5rem; border: 1px solid var(--xi-line); border-collapse: separate; border-spacing: 0; border-radius: var(--radius-sm); overflow-x: auto; font-size: 0.9rem; -webkit-overflow-scrolling: touch; }
th { padding: 0.8rem 0.9rem; background: var(--xi-deep); color: white; text-align: left; }
td { padding: 0.8rem 0.9rem; border-top: 1px solid var(--xi-line); vertical-align: top; }
.medical-disclaimer, .warning-box { margin-top: var(--space-5); padding: 1.1rem 1.25rem; border-left: 4px solid var(--xi-warning); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; background: #fffbeb; }
.medical-disclaimer p, .warning-box p { margin: 0; }
.warning-box { border-color: var(--xi-danger); background: #fef2f2; color: #7f1d1d; }
.warning-box strong { display: block; color: var(--xi-danger); }
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin-top: var(--space-5); }
.contact-card { padding: var(--space-5); border: 1px solid var(--xi-line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-sm); }
.contact-card h2, .contact-card h3 { margin: 0 0 0.6rem; border: 0; padding: 0; font-size: 1.2rem; }
.contact-card p { margin: 0 0 0.5rem; color: var(--xi-gray); }
.contact-card .btn { margin-top: 1rem; }

.site-footer { padding-block: var(--space-7) var(--space-5); border-top: 1px solid var(--xi-line); background: var(--xi-surface); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(2, 0.6fr); gap: var(--space-6); }
.footer-brand { max-width: 360px; }
.footer-brand .brand { margin-bottom: 1rem; }
.footer-logo { width: min(100%, 320px); margin: -1.25rem 0 -0.8rem -1.5rem; }
.footer-brand p { color: var(--xi-gray); font-size: 0.92rem; }
.footer-column strong { display: block; margin-bottom: 0.9rem; font-size: 0.9rem; }
.footer-column a { display: block; width: fit-content; margin: 0.48rem 0; color: var(--xi-gray); font-size: 0.9rem; text-decoration: none; }
.footer-column a:hover { color: var(--xi-blue); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; margin-top: var(--space-6); padding-top: var(--space-4); border-top: 1px solid var(--xi-line); color: var(--xi-gray); font-size: 0.82rem; }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { min-height: 340px; }
  .symbol-card { width: 270px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-panel { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 860px) {
  :root { --space-8: 5.5rem; }
  .container, .legal-layout { width: min(calc(100% - 2rem), var(--container)); }
  .header-inner { min-height: 68px; }
  .menu-toggle { display: inline-flex; }
  .nav { position: absolute; top: 68px; right: 1rem; left: 1rem; display: none; align-items: stretch; flex-direction: column; padding: 0.7rem; border: 1px solid var(--xi-line); border-radius: var(--radius-md); background: white; box-shadow: var(--shadow-lg); }
  .nav[data-open="true"] { display: flex; }
  .nav a { padding: 0.8rem 0.9rem; }
  .nav .nav-cta { margin: 0.25rem 0 0; text-align: center; }
  .proof-grid { grid-template-columns: 1fr; padding-block: 0.8rem; }
  .proof-item { padding: 0.7rem 0; border-left: 0; border-top: 1px solid var(--xi-line); }
  .proof-item:first-child { border-top: 0; }
  .cards, .principles, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .brand__slogan { display: none; }
  .display { font-size: clamp(2.65rem, 14vw, 4.1rem); }
  .hero { padding-block: 4.5rem; }
  .hero-mark { min-height: 280px; }
  .hero-mark::before { width: 290px; height: 290px; }
  .symbol-card { width: 220px; padding: 2rem; }
  .feature-grid, .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
  .page-hero { padding-block: 3.5rem; }
  .legal-layout { margin-top: 2.2rem; }
  .doc-meta { display: grid; }
  .button-row .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}