/* ===========================================================
   MedLens — Design tokens
   =========================================================== */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,500;1,9..144,600&family=Public+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --bg:            #F6F8F7;
  --bg-alt:        #EBF1EE;
  --card:          #FFFFFF;
  --ink:           #142621;
  --ink-soft:      #47594F;
  --ink-faint:     #7C8D84;
  --teal:          #2C6E5F;
  --teal-deep:     #10241F;
  --teal-line:     #C4D8CE;
  --gold:          #C98F2E;
  --gold-soft:     #EFDBB1;
  --ring:          rgba(44,110,95,0.35);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --radius-lens: 999px;
  --radius-card: 22px;
  --container: 1120px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; font-weight:600; color:var(--teal-deep); }
p{ margin:0; }

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

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--teal);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:7px; height:7px;
  border-radius:50%;
  background:var(--gold);
  display:inline-block;
}

/* ===========================================================
   Header / Nav
   =========================================================== */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(246,248,247,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--teal-line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 28px;
  max-width:var(--container);
  margin:0 auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:21px;
  color:var(--teal-deep);
}
.brand .lens-mark{ width:26px; height:26px; }
.brand .lens-mark circle{ fill:none; stroke:var(--teal); stroke-width:2.4; }
.brand .lens-mark .pupil{ fill:var(--gold); stroke:none; }

.nav-links{ display:flex; align-items:center; gap:34px; }
.nav-links a{
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-soft);
  position:relative;
  padding:4px 0;
}
.nav-links a::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-2px;
  height:2px; background:var(--gold);
  transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after{ transform:scaleX(1); }
.nav-links a[aria-current="page"]{ color:var(--teal-deep); }

.nav-cta{
  background:var(--teal-deep);
  color:#fff !important;
  padding:10px 20px;
  border-radius:var(--radius-lens);
  font-size:14px !important;
  font-weight:600 !important;
}
.nav-cta::after{ display:none; }
.nav-cta:hover{ background:var(--teal); }

.nav-toggle{
  display:none;
  background:none; border:none; cursor:pointer;
  width:40px; height:40px;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav-toggle span{ width:22px; height:2px; background:var(--teal-deep); display:block; }

@media (max-width:860px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    background:var(--bg);
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    border-bottom:1px solid var(--teal-line);
    max-height:0; overflow:hidden;
    transition:max-height .3s ease;
  }
  .nav-links.open{ max-height:340px; }
  .nav-links a{ width:100%; padding:16px 28px; border-top:1px solid var(--teal-line); }
  .nav-links a::after{ display:none; }
  .nav-links .nav-cta{ margin:16px 28px; text-align:center; }
}

/* ===========================================================
   Buttons / Forms
   =========================================================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--radius-lens);
  font-family:var(--font-body);
  font-weight:600; font-size:15px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.btn-primary{ background:var(--teal-deep); color:#fff; }
.btn-primary:hover{ background:var(--teal); transform:translateY(-1px); }
.btn-ghost{ background:transparent; color:var(--teal-deep); border-color:var(--teal-line); }
.btn-ghost:hover{ border-color:var(--teal); }

.field{
  display:flex; flex-direction:column; gap:6px; text-align:left;
}
.field label{
  font-family:var(--font-mono);
  font-size:12px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-faint);
}
.field input,
.field textarea{
  font-family:var(--font-body);
  font-size:15.5px;
  padding:13px 16px;
  border-radius:14px;
  border:1.4px solid var(--teal-line);
  background:#fff;
  color:var(--ink);
}
.field textarea{ resize:vertical; min-height:120px; }
.field input:focus,
.field textarea:focus{ border-color:var(--teal); }

/* ===========================================================
   Waitlist (lens-framed card — the signature element)
   =========================================================== */
.lens-frame{
  position:relative;
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--teal-line);
  padding:38px clamp(20px,4vw,48px);
  box-shadow:0 30px 60px -35px rgba(16,36,31,0.35);
}
.lens-frame::before{
  content:"";
  position:absolute;
  top:-14px; left:50%;
  transform:translateX(-50%);
  width:60px; height:28px;
  border-radius:0 0 40px 40px;
  border:1.4px solid var(--teal-line);
  border-top:none;
  background:var(--bg);
}

.waitlist-form{
  display:grid;
  grid-template-columns:1fr auto;
  gap:14px;
  max-width:520px;
}
.waitlist-form .field{ flex:1; }
@media (max-width:560px){
  .waitlist-form{ grid-template-columns:1fr; }
}
.form-note{
  font-size:12.5px; color:var(--ink-faint); margin-top:12px; max-width:480px;
}
.form-success{
  display:none;
  align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:14px;
  color:var(--teal-deep);
  background:var(--gold-soft);
  padding:14px 18px; border-radius:14px;
  margin-top:16px;
}
.form-success.show{ display:flex; }

/* ===========================================================
   Hero
   =========================================================== */
.hero{
  padding:76px 0 60px;
  position:relative;
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  gap:56px;
  align-items:center;
}
@media (max-width:920px){
  .hero-grid{ grid-template-columns:1fr; }
}
.hero h1{
  font-size:clamp(38px,5.4vw,60px);
  line-height:1.05;
  letter-spacing:-0.01em;
  margin:18px 0 22px;
}
.hero h1 em{ font-style:italic; color:var(--teal); }
.hero p.lead{
  font-size:18px;
  color:var(--ink-soft);
  max-width:52ch;
  margin-bottom:30px;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; align-items:center; }
.hero-visual{ position:relative; display:flex; justify-content:center; }
.hero-visual svg{ width:100%; max-width:420px; }

.patent-pill{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--teal-deep);
  background:var(--teal-line);
  padding:7px 14px; border-radius:var(--radius-lens);
  margin-bottom:22px;
}

/* ===========================================================
   Sections / generic
   =========================================================== */
section{ padding:76px 0; }
.section-alt{ background:var(--bg-alt); }
.section-deep{ background:var(--teal-deep); color:#fff; }
.section-deep h2,.section-deep h3{ color:#fff; }
.section-deep .ink-soft{ color:rgba(255,255,255,0.72); }

.section-head{ max-width:640px; margin-bottom:44px; }
.section-head h2{ font-size:clamp(28px,3.6vw,38px); margin-top:14px; line-height:1.12; }
.section-head p{ color:var(--ink-soft); margin-top:14px; font-size:16.5px; }
.section-deep .section-head p{ color:rgba(255,255,255,0.72); }

.divider-arc{ width:100%; height:40px; }
.divider-arc svg{ width:100%; height:100%; }

/* Card grid */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:26px; }
@media (max-width:860px){
  .grid-3{ grid-template-columns:1fr; }
  .grid-2{ grid-template-columns:1fr; }
}

.card{
  background:var(--card);
  border:1px solid var(--teal-line);
  border-radius:var(--radius-card);
  padding:30px 26px;
}
.card .lens-num{
  width:46px; height:46px;
  border-radius:50%;
  border:1.6px solid var(--teal);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-size:14px; color:var(--teal);
  margin-bottom:18px;
}
.card h3{ font-size:19px; margin-bottom:10px; }
.card p{ color:var(--ink-soft); font-size:15px; }

/* Quote / founder */
.quote-block{
  position:relative;
  border-radius:var(--radius-card);
  border:1px solid var(--teal-line);
  background:var(--card);
  padding:44px clamp(22px,5vw,56px);
}
.quote-block .quote-mark{
  font-family:var(--font-display);
  font-style:italic;
  font-size:64px;
  color:var(--gold);
  line-height:1;
  margin-bottom:6px;
}
.quote-block p.quote-text{
  font-family:var(--font-display);
  font-size:clamp(20px,2.4vw,27px);
  font-style:italic;
  color:var(--teal-deep);
  line-height:1.45;
}
.quote-attribution{
  margin-top:22px;
  display:flex; align-items:center; gap:12px;
  font-family:var(--font-mono); font-size:13px; color:var(--ink-faint);
}
.quote-attribution .lens-mini{ width:20px; height:20px; }
.quote-attribution .lens-mini circle{ fill:none; stroke:var(--teal); stroke-width:2; }

/* Timeline-free list with lens bullets */
.lens-list{ display:flex; flex-direction:column; gap:22px; }
.lens-list li{ display:flex; gap:16px; align-items:flex-start; }
.lens-list .lens-bullet{
  flex:none; width:34px; height:34px; border-radius:50%;
  border:1.6px solid var(--gold);
  display:flex; align-items:center; justify-content:center;
  margin-top:2px;
}
.lens-list .lens-bullet span{ width:7px; height:7px; border-radius:50%; background:var(--gold); }
.lens-list h4{ font-size:16.5px; margin-bottom:4px; }
.lens-list p{ color:var(--ink-soft); font-size:15px; }

/* FAQ */
.faq-item{
  border-bottom:1px solid var(--teal-line);
  padding:22px 0;
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  display:flex; align-items:center; justify-content:space-between;
  gap:20px;
  font-family:var(--font-display);
  font-weight:600;
  font-size:18px;
  color:var(--teal-deep);
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item .plus{
  flex:none;
  width:28px; height:28px;
  border-radius:50%;
  border:1.4px solid var(--teal);
  position:relative;
}
.faq-item .plus::before,
.faq-item .plus::after{
  content:""; position:absolute; background:var(--teal);
  top:50%; left:50%; transform:translate(-50%,-50%);
}
.faq-item .plus::before{ width:11px; height:1.6px; }
.faq-item .plus::after{ width:1.6px; height:11px; transition:transform .2s ease; }
.faq-item[open] .plus::after{ transform:translate(-50%,-50%) rotate(90deg) scaleY(0); }
.faq-item p.answer{ color:var(--ink-soft); margin-top:14px; max-width:70ch; font-size:15.5px; }

/* Disclaimer strip */
.disclaimer{
  font-size:13px;
  color:var(--ink-faint);
  border-top:1px solid var(--teal-line);
  padding-top:22px;
  line-height:1.6;
}

/* ===========================================================
   Footer
   =========================================================== */
.site-footer{
  background:var(--teal-deep);
  color:rgba(255,255,255,0.82);
  padding:56px 0 30px;
}
.footer-top{
  display:flex; justify-content:space-between; gap:40px;
  flex-wrap:wrap;
  padding-bottom:34px;
  border-bottom:1px solid rgba(255,255,255,0.14);
}
.footer-brand{ max-width:340px; }
.footer-brand .brand{ color:#fff; }
.footer-brand .brand .lens-mark circle{ stroke:#fff; }
.footer-brand p{ margin-top:14px; font-size:14.5px; color:rgba(255,255,255,0.62); }
.footer-links{ display:flex; gap:64px; flex-wrap:wrap; }
.footer-col h5{
  font-family:var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase;
  color:rgba(255,255,255,0.5); margin-bottom:16px; font-weight:500;
}
.footer-col ul{ display:flex; flex-direction:column; gap:11px; }
.footer-col a{ font-size:14.5px; color:rgba(255,255,255,0.85); }
.footer-col a:hover{ color:var(--gold); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:12.5px; color:rgba(255,255,255,0.5);
}
.footer-bottom p{ max-width:640px; }

/* Utility */
.mt-8{ margin-top:8px; } .mt-16{ margin-top:16px; } .mt-24{ margin-top:24px; }
.text-center{ text-align:center; margin-left:auto; margin-right:auto; }