:root {
  --ink: #18343b;
  --muted: #5f7479;
  --teal: #0f766e;
  --teal-dark: #0a4f4a;
  --mint: #dff3ed;
  --mint-soft: #f2faf7;
  --sand: #f5f1e7;
  --white: #ffffff;
  --line: rgba(24, 52, 59, .12);
  --shadow: 0 20px 60px rgba(20, 71, 72, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 15%, rgba(61, 174, 158, .09), transparent 30%),
    radial-gradient(circle at 90% 22%, rgba(225, 205, 154, .12), transparent 30%),
    #fbfdfc;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(251, 253, 252, .92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.site-header-wrap { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; display: inline-grid; place-items: center; background: linear-gradient(135deg, var(--teal), #47a99a); color: white; font-weight: 800; letter-spacing: .04em; box-shadow: 0 10px 24px rgba(15, 118, 110, .25); }
.brand strong, .brand small { display: block; }
.brand strong { font-size: .98rem; }
.brand small { color: var(--muted); font-size: .76rem; margin-top: -2px; }
nav ul { list-style: none; padding: 0; margin: 0; display: flex; align-items: center; gap: 27px; }
nav li { margin: 0; padding: 0; }
nav a { text-decoration: none; color: var(--ink); font-size: .93rem; font-weight: 650; position: relative; }
nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--teal); transition: .25s ease; }
nav a:hover::after { right: 0; }
.menu-toggle { display: none; border: 1px solid var(--line); background: white; width: 44px; height: 44px; border-radius: 12px; font-size: 1.2rem; }

.hero { padding: 92px 0 78px; overflow: hidden; }
.eyebrow { display: inline-block; color: var(--teal); font-size: .8rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; margin-bottom: 16px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.025em; }
h1 { font-size: clamp(2.8rem, 5vw, 5.6rem); max-width: 900px; font-weight: 800; }
h2 { font-size: clamp(2rem, 3.4vw, 3.7rem); font-weight: 760; }
h3 { font-size: 1.2rem; font-weight: 750; }
.hero-lead { font-size: 1.18rem; color: var(--muted); max-width: 760px; margin: 26px 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.primary-cta, .secondary-cta { text-decoration: none; padding: 14px 20px; border-radius: 14px; font-weight: 750; transition: transform .2s ease, box-shadow .2s ease; }
.primary-cta { background: var(--teal); color: white; box-shadow: 0 15px 30px rgba(15, 118, 110, .22); }
.secondary-cta { border: 1px solid var(--line); background: white; color: var(--ink); }
.primary-cta:hover, .secondary-cta:hover { transform: translateY(-2px); }
.hero-notes { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; color: var(--muted); font-size: .88rem; }
.hero-notes span::before { content: "•"; color: var(--teal); margin-right: 7px; }
.hero-image-card { position: relative; background: linear-gradient(145deg, var(--mint), var(--sand)); border-radius: 30px; padding: 18px; box-shadow: var(--shadow); }
.hero-image-card img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 22px; }
.floating-card { position: absolute; left: -44px; bottom: 28px; width: 270px; padding: 18px; border-radius: 18px; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,.8); }
.floating-card strong, .floating-card span { display: block; }
.floating-card span { color: var(--muted); font-size: .84rem; margin-top: 7px; line-height: 1.5; }

section { padding: 88px 0; }
.intro-strip { background: linear-gradient(180deg, #f5fbf8, #eef7f3); border-top: 1px solid rgba(15,118,110,.06); border-bottom: 1px solid rgba(15,118,110,.08); }
.section-heading { max-width: 820px; margin-bottom: 34px; }
.section-heading.centered { text-align: center; margin-left: auto; margin-right: auto; }
.section-heading p { color: var(--muted); font-size: 1.05rem; }
.info-card { background: white; padding: 30px; border-radius: 22px; border: 1px solid var(--line); box-shadow: 0 14px 42px rgba(31, 79, 75, .06); transition: transform .25s ease; }
.info-card:hover { transform: translateY(-5px); }
.icon-bubble { width: 45px; height: 45px; border-radius: 50%; background: var(--mint); display: grid; place-items: center; color: var(--teal-dark); font-weight: 800; margin-bottom: 22px; }
.info-card p, .symptom-card p, .resource-card p { color: var(--muted); }

.split-section { background: white; }
.feature-image { width: 100%; border-radius: 28px; min-height: 420px; object-fit: cover; box-shadow: var(--shadow); }
.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 28px; }
.check-grid > div { padding: 20px; border-radius: 18px; background: var(--mint-soft); border: 1px solid rgba(15,118,110,.1); }
.check-grid strong, .check-grid span { display: block; }
.check-grid strong { margin-bottom: 7px; }
.check-grid span { color: var(--muted); font-size: .92rem; }

.symptom-section { background: #102f33; color: white; }
.symptom-section .section-heading p { color: rgba(255,255,255,.72); }
.symptom-section .eyebrow { color: #8ed9cb; }
.symptom-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.symptom-card { padding: 26px; border-radius: 20px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.11); min-height: 180px; }
.symptom-card p { color: rgba(255,255,255,.68); }

.warning-section { padding: 58px 0; }
.warning-box { display: grid; grid-template-columns: .9fr 1.6fr; gap: 38px; align-items: center; padding: 34px; border-radius: 24px; background: linear-gradient(135deg, #fff7e7, #fffdf8); border: 1px solid rgba(173,122,22,.16); }
.warning-box p { margin: 0; color: #6d6042; }

.daily-section { background: var(--mint-soft); }
.timeline { display: grid; gap: 16px; }
.timeline-item { display: grid; grid-template-columns: 46px 1fr; gap: 16px; align-items: start; padding: 22px; border-radius: 20px; background: white; border: 1px solid var(--line); }
.timeline-item > span { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; background: var(--teal); color: white; font-weight: 800; }
.timeline-item h3 { margin: 2px 0 8px; }
.timeline-item p { color: var(--muted); margin: 0; }

.compare-section { background: white; }
.custom-table-wrap { border: 1px solid var(--line); border-radius: 22px; overflow: hidden; box-shadow: 0 16px 50px rgba(25, 76, 75, .06); }
.custom-table-wrap th { background: #eff8f5; padding: 18px; }
.custom-table-wrap td { padding: 18px; color: var(--muted); }
.custom-table-wrap td:first-child { color: var(--ink); font-weight: 700; }

.questions-section { background: linear-gradient(135deg, #e9f8f3, #f9f5e8); }
.question-list { display: grid; gap: 12px; }
.question-list div { background: rgba(255,255,255,.78); border: 1px solid rgba(15,118,110,.12); border-radius: 16px; padding: 17px 20px 17px 50px; position: relative; font-weight: 650; }
.question-list div::before { content: "?"; position: absolute; left: 17px; top: 15px; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; color: white; background: var(--teal); font-size: .8rem; }

.faq-section { background: white; }
.accordion { max-width: 900px; margin: 0 auto; }
.accordion-item { border: 1px solid var(--line) !important; border-radius: 16px !important; overflow: hidden; margin-bottom: 12px; }
.accordion-button { font-weight: 700; padding: 20px 22px; }
.accordion-button:not(.collapsed) { color: var(--teal-dark); background: #eff8f5; box-shadow: none; }
.accordion-button:focus { box-shadow: none; }
.accordion-body { color: var(--muted); }

.resources-section { background: #f6faf8; }
.resource-card { display: block; height: 100%; padding: 28px; border-radius: 22px; text-decoration: none; background: white; border: 1px solid var(--line); transition: .25s ease; }
.resource-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.resource-card > span { color: var(--teal); font-weight: 800; font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; }
.resource-card h3 { margin: 14px 0 10px; font-size: 1.35rem; }
.resource-card b { color: var(--teal); }

.final-note { padding: 64px 0 90px; }
.final-note-inner { text-align: center; border-radius: 30px; padding: 56px 40px; color: white; background: linear-gradient(135deg, #0e6a63, #173f44); box-shadow: var(--shadow); }
.final-note-inner p { max-width: 820px; margin: 18px auto 28px; color: rgba(255,255,255,.78); }
.final-note-inner a { display: inline-block; text-decoration: none; padding: 13px 18px; border-radius: 13px; background: white; color: var(--teal-dark); font-weight: 800; }

footer { background: #0b2529; color: white; padding: 62px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.7fr .8fr .8fr; gap: 46px; }
.footer-brand { color: white; margin-bottom: 16px; }
footer p { color: rgba(255,255,255,.64); max-width: 520px; }
footer h3 { font-size: 1rem; margin-bottom: 16px; }
footer ul { list-style: none; padding: 0; margin: 0; }
footer li { margin-bottom: 9px; }
footer a { color: rgba(255,255,255,.72); text-decoration: none; }
footer a:hover { color: white; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.1); margin-top: 44px; padding-top: 22px; color: rgba(255,255,255,.52); font-size: .83rem; }

#backToTop { position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--teal); color: white; font-size: 1.15rem; box-shadow: 0 12px 30px rgba(15,118,110,.28); opacity: 0; pointer-events: none; transition: .25s ease; }
#backToTop.visible { opacity: 1; pointer-events: auto; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 991px) {
  .menu-toggle { display: inline-grid; place-items: center; margin-left: auto; }
  nav { position: absolute; top: 82px; left: 0; right: 0; background: rgba(251,253,252,.98); border-bottom: 1px solid var(--line); padding: 12px 24px 22px; display: none; }
  nav.open { display: block; }
  nav ul { flex-direction: column; align-items: flex-start; gap: 14px; }
  .floating-card { left: 12px; right: 12px; width: auto; }
  .symptom-grid { grid-template-columns: 1fr 1fr; }
  .warning-box { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .site-header-wrap { min-height: 72px; }
  nav { top: 72px; }
  .brand small { display: none; }
  .hero { padding-top: 58px; }
  section { padding: 66px 0; }
  .check-grid, .symptom-grid { grid-template-columns: 1fr; }
  .warning-box { padding: 26px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div:first-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
  .final-note-inner { padding: 40px 24px; }
}