/* Frontier Physicians — site styles */
:root {
  --ink: #0a0d10;
  --ink-2: #141a1f;
  --ink-3: #1f2830;
  --teal: #1abad1;
  --teal-deep: #0c7d8e;   /* teal for text on light backgrounds (AA contrast) */
  --teal-wash: #e8f7fa;
  --snow: #f5f7f8;
  --line: #e1e6ea;
  --text: #2a333b;
  --muted: #5b6772;
  --white: #fff;
  --radius: 14px;
  --max: 1160px;
  --head: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--white); color: var(--text); font: 400 18px/1.65 var(--body); }
img, svg { max-width: 100%; display: block; }
a { color: var(--teal-deep); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
h1, h2, h3, h4 { font-family: var(--head); color: var(--ink); line-height: 1.12; margin: 0 0 .5em; letter-spacing: -0.015em; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.6rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { width: min(var(--max), 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: var(--white); padding: 8px 14px; border-radius: 8px; }

/* Eyebrow + buttons */
.eyebrow { font: 700 .8rem/1 var(--head); letter-spacing: .14em; text-transform: uppercase; color: var(--teal-deep); margin-bottom: 1rem; display: inline-flex; gap: .6em; align-items: center; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: currentColor; }
.dark .eyebrow { color: var(--teal); }
.btn { display: inline-flex; align-items: center; gap: .5em; font: 700 1rem/1 var(--head); padding: 1rem 1.4rem; border-radius: 999px; text-decoration: none; border: 2px solid transparent; transition: transform .15s, background .15s, color .15s; }
.btn:hover { transform: translateY(-1px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--teal); color: var(--ink); }
.btn-primary:hover { background: #46cde0; color: var(--ink); }
.btn-ghost { border-color: rgba(255,255,255,.35); color: var(--white); }
.btn-ghost:hover { border-color: var(--white); color: var(--white); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--ink-3); color: var(--white); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(0,0,0,.92); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255,255,255,.08); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.brand img { height: 52px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: #d6dde2; text-decoration: none; font: 600 .98rem/1 var(--body); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--white); }
.nav-links a[aria-current="page"] { box-shadow: 0 2px 0 var(--teal); padding-bottom: 6px; }
.nav-links .btn { padding: .75rem 1.1rem; font-size: .92rem; color: var(--ink); }
.menu-toggle { display: none; background: none; border: 0; color: var(--white); padding: 8px; cursor: pointer; }
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .nav-links { position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: flex-start; gap: 0; background: #000; padding: 8px 16px 20px; display: none; border-bottom: 1px solid rgba(255,255,255,.1); }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 14px 0; font-size: 1.05rem; }
  .nav-links a[aria-current="page"] { box-shadow: none; color: var(--teal); }
  .nav-links .btn { margin-top: 10px; display: inline-flex; padding: .9rem 1.2rem; }
}

/* Dark sections + hero */
.dark { background: var(--ink); color: #c9d2d8; }
.dark h1, .dark h2, .dark h3 { color: var(--white); }
.hero { position: relative; overflow: hidden; padding: clamp(72px, 11vw, 140px) 0 clamp(84px, 12vw, 150px); background: radial-gradient(1200px 500px at 80% 110%, rgba(26,186,209,.16), transparent 60%), #000; }
.hero .ridge { position: absolute; right: -3%; bottom: -4px; width: min(760px, 50%); opacity: .55; pointer-events: none; }
.hero-copy { position: relative; z-index: 1; }
.hero-copy > * { max-width: 760px; }
@media (max-width: 860px) { .hero .ridge { width: 120%; right: -30%; opacity: .28; } }
.hero h1 span { color: var(--teal); }
.hero .lede { font-size: clamp(1.1rem, 1.7vw, 1.3rem); color: #c3ccd3; max-width: 560px; margin-bottom: 2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.page-hero { padding: clamp(60px, 9vw, 110px) 0 clamp(56px, 8vw, 96px); }
.page-hero .lede { max-width: 680px; font-size: 1.2rem; color: #c3ccd3; margin: 0; }


/* Sections */
.section { padding: clamp(64px, 9vw, 112px) 0; }
.section.alt { background: var(--snow); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head p { color: var(--muted); font-size: 1.12rem; }

/* Cards */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 960px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card .icon { width: 46px; height: 46px; border-radius: 12px; background: var(--teal-wash); color: var(--teal-deep); display: grid; place-items: center; margin-bottom: 18px; }
.card .icon svg { width: 24px; height: 24px; }
.card p { color: var(--muted); margin: 0; font-size: 1rem; }
.card.feature { background: var(--ink); border-color: var(--ink); color: #c3ccd3; }
.card.feature h3 { color: var(--white); font-size: 1.45rem; }
.card.feature .icon { background: rgba(26,186,209,.15); color: var(--teal); }
.card.feature p { color: #c3ccd3; }

/* Audience split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.panel { border-radius: 20px; padding: clamp(28px, 4vw, 48px); }
.panel.light { background: var(--white); border: 1px solid var(--line); }
.panel.dark { background: var(--ink); }
.panel h3 { font-size: 1.6rem; }
.checks { list-style: none; padding: 0; margin: 20px 0 28px; display: grid; gap: 12px; }
.checks li { position: relative; padding-left: 34px; }
.checks li::before { content: ""; position: absolute; left: 0; top: .3em; width: 20px; height: 20px; border-radius: 50%; background: var(--teal-wash) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='%230c7d8e' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat; }
.panel.dark .checks li { color: #dfe6ea; }
.panel.dark .checks li::before { background-color: rgba(26,186,209,.18); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='%231abad1' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }

/* Stat row */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 8px; }
.stats div { background: var(--white); padding: 28px; }
.stats strong { display: block; font: 800 2.4rem/1 var(--head); color: var(--ink); margin-bottom: 8px; }
.stats span { color: var(--muted); font-size: 1rem; }
@media (max-width: 640px) { .stats { grid-template-columns: 1fr; } }

/* Quote */
.quote { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
@media (max-width: 860px) { .quote { grid-template-columns: 1fr; } }
.quote blockquote { margin: 0; font: 600 clamp(1.35rem, 2.4vw, 1.85rem)/1.4 var(--head); color: var(--white); letter-spacing: -0.01em; }
.quote blockquote::before { content: "\201C"; display: block; font-size: 4.5rem; line-height: .6; color: var(--teal); margin-bottom: 18px; }
.quote cite { display: block; margin-top: 24px; font: normal 600 1rem/1.4 var(--body); color: #c3ccd3; }
.quote cite b { color: var(--white); display: block; }
.values { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.12); }
.values li { padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.12); color: #c3ccd3; font-size: 1rem; }
.values b { color: var(--white); font-family: var(--head); display: block; font-size: 1.05rem; }

/* FAQ */
.faq { max-width: 860px; }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; list-style: none; font: 700 1.15rem/1.4 var(--head); color: var(--ink); padding: 20px 40px 20px 0; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 1.8rem; color: var(--teal-deep); font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { color: var(--muted); padding-right: 40px; }

/* CTA band */
.cta { background: var(--teal); color: var(--ink); padding: clamp(56px, 8vw, 88px) 0; }
.cta .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 28px; }
.cta h2 { margin: 0 0 .3em; }
.cta p { margin: 0; font-size: 1.15rem; color: #0b3a42; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.cta .btn-outline { border-color: var(--ink); color: var(--ink); }
.cta .btn-outline:hover { background: var(--ink); color: var(--white); }

/* Prose pages */
.prose { max-width: 760px; }
.prose p { font-size: 1.12rem; }
.prose h2 { margin-top: 1.6em; font-size: 1.8rem; }
.signoff { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.signoff b { display: block; font-family: var(--head); color: var(--ink); font-size: 1.15rem; }

/* Team bios */
.bio { display: grid; grid-template-columns: 220px 1fr; gap: clamp(24px, 4vw, 56px); padding: 48px 0; border-top: 1px solid var(--line); scroll-margin-top: 96px; }
.bio:first-of-type { border-top: 0; padding-top: 0; }
@media (max-width: 720px) { .bio { grid-template-columns: 1fr; gap: 20px; } .avatar { width: 88px; height: 88px; font-size: 2rem; border-radius: 16px; } }
.avatar { width: 180px; height: 180px; border-radius: 20px; background: var(--ink); display: grid; place-items: center; color: var(--teal); font: 800 3.2rem/1 var(--head); }
.bio .role { font: 700 .85rem/1 var(--head); letter-spacing: .12em; text-transform: uppercase; color: var(--teal-deep); margin-bottom: 10px; }
.bio h2 { font-size: 2rem; }
.creds { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; padding: 0; list-style: none; }
.creds li { background: var(--teal-wash); color: #0a5964; font-size: .88rem; font-weight: 600; padding: 6px 12px; border-radius: 999px; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { border: 1px solid var(--line); border-radius: 20px; padding: 36px; }
.contact-card h2 { font-size: 1.6rem; }
.contact-card .big { font: 700 1.3rem/1.3 var(--head); color: var(--ink); text-decoration: none; word-break: break-word; }
.contact-card .big:hover { color: var(--teal-deep); }

/* Footer */
.site-footer { background: #000; color: #9aa6af; padding: 64px 0 32px; font-size: .98rem; }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
@media (max-width: 760px) { .foot { grid-template-columns: 1fr; } }
.site-footer img { height: 64px; width: auto; margin-bottom: 16px; }
.site-footer h3 { color: var(--white); font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: #c9d2d8; text-decoration: none; }
.site-footer a:hover { color: var(--teal); }
.legal { margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: .88rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }

:focus-visible { outline: 3px solid var(--teal); outline-offset: 3px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }