/**
 * ANSR HealthAI — Shared site styles
 *
 * Tokens, reset, typography, nav, buttons, footer, reveal, and common
 * mobile breakpoints. Aligned with the mobile app theme
 * (ansr-mobile/src/theme/): Authentic Teal + Flame Peach + Radlush/Roboto.
 *
 * index.html keeps its own full inline style block (it has the hero phone
 * preview and complete page-specific layout). This file is linked by the
 * other pages: about.html, for-families.html, security.html, privacy.html,
 * terms.html.
 */

/* ══════════════════════ FONTS (Radlush — brand) ══════════════════════ */
@font-face{font-family:'Radlush';src:url('fonts/Radlush-Regular.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Radlush';src:url('fonts/Radlush-Medium.ttf') format('truetype');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Radlush';src:url('fonts/Radlush-Bold.ttf') format('truetype');font-weight:700;font-style:normal;font-display:swap}

/* ══════════════════════ TOKENS (mirrors ansr-mobile/src/theme) ══════════════════════ */
:root{
  --teal:#065A4F;
  --teal-deep:#044239;
  --teal-ink:#022A23;
  --arctic:#83C7C8;
  --clay:#E16136;
  --clay-hover:#C4502B;
  --clay-soft:#FDF0EB;
  --warm:#FFEECD;
  --warm-soft:#FFF6E5;
  --warm-cream:#FFFBF3;
  --paper:#FFFFFF;
  --paper-2:#F6F6F6;
  --surface:#FFFFFF;
  --hairline:#E5E7EB;
  --hairline-2:#ECECEC;
  --ink:#1F2937;
  --ink-70:#4B5563;
  --ink-50:#757F95;
  --ink-30:#9CA3AF;
  --grad-hero:linear-gradient(135deg,#065A4F 0%,#044239 50%,#022A23 100%);
  --grad-mesh:radial-gradient(900px 400px at 0% 0%,rgba(131,199,200,.14),transparent 60%),radial-gradient(800px 500px at 100% 10%,rgba(255,238,205,.55),transparent 60%),linear-gradient(180deg,#FFFFFF,#F6F6F6);
  --heading:'Radlush','Roboto',system-ui,sans-serif;
  --sans:'Roboto',system-ui,-apple-system,sans-serif;
  --brand:'Radlush','Roboto',system-ui,sans-serif;
  --max:1200px;
  --gutter:clamp(20px,4vw,64px);
}

/* ══════════════════════ RESET ══════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;font-size:16px}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{cursor:pointer;border:none;font-family:inherit;background:none}
p{text-wrap:pretty}
h1,h2,h3,h4{text-wrap:balance}

/* ══════════════════════ TYPE ══════════════════════ */
.eyebrow{font-family:var(--sans);font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-50)}
.eyebrow.teal{color:var(--teal)}
.eyebrow.light{color:rgba(255,255,255,.7)}
.display-xl{font-family:var(--heading);font-weight:700;font-size:clamp(40px,6.6vw,80px);line-height:1.05;letter-spacing:-.025em;color:var(--ink)}
.display-l{font-family:var(--heading);font-weight:700;font-size:clamp(32px,4.8vw,56px);line-height:1.08;letter-spacing:-.02em;color:var(--ink)}
.display-m{font-family:var(--heading);font-weight:700;font-size:clamp(28px,3.6vw,42px);line-height:1.15;letter-spacing:-.015em;color:var(--ink)}
.display-s{font-family:var(--heading);font-weight:600;font-size:clamp(22px,2.4vw,30px);line-height:1.25;letter-spacing:-.01em;color:var(--ink)}
.lead{font-family:var(--sans);font-weight:400;font-size:clamp(18px,1.9vw,22px);line-height:1.6;color:var(--ink-70)}
.body-l{font-size:18px;line-height:1.7;color:var(--ink-70)}
.body{font-size:16px;line-height:1.7;color:var(--ink-70)}
.body-s{font-size:14px;line-height:1.6;color:var(--ink-50)}
em.accent{font-style:normal;color:var(--clay);font-weight:700}
em.accent-teal{font-style:normal;color:var(--teal);font-weight:700}

/* ══════════════════════ LAYOUT ══════════════════════ */
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.wrap-narrow{max-width:780px;margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.section{padding:clamp(72px,9vw,120px) 0;position:relative}
.section-tight{padding:clamp(48px,6vw,80px) 0;position:relative}

/* ══════════════════════ NAV ══════════════════════ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:18px var(--gutter);display:flex;align-items:center;justify-content:space-between;transition:all .3s ease}
.nav.stuck{background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--hairline-2);padding-top:12px;padding-bottom:12px;box-shadow:0 1px 0 rgba(14,23,20,.02)}
.nav-logo{display:flex;align-items:center;height:44px}
.nav-logo img{height:44px;width:auto;transition:height .3s ease}
.nav.stuck .nav-logo img{height:36px}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;font-weight:500;color:var(--ink-70);transition:color .15s ease}
.nav-links a:hover,.nav-links a.active{color:var(--teal)}
.nav-links .nav-cta{background:var(--clay);color:#fff;padding:11px 22px;border-radius:999px;font-weight:600;transition:all .2s ease;box-shadow:0 2px 4px rgba(225,97,54,.2)}
.nav-links .nav-cta:hover{background:var(--clay-hover);color:#fff;transform:translateY(-1px);box-shadow:0 8px 22px rgba(225,97,54,.32)}
.nav-ham{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:10px}
.nav-ham span{display:block;width:22px;height:1.6px;background:var(--ink);border-radius:2px;position:relative}
.nav-ham span::before,.nav-ham span::after{content:'';position:absolute;left:0;width:22px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .25s ease}
.nav-ham span::before{top:-7px}.nav-ham span::after{top:7px}
.mob-menu{display:none;position:fixed;inset:0;z-index:99;background:var(--paper);flex-direction:column;align-items:center;justify-content:center;gap:28px;padding:0 24px}
.mob-menu.open{display:flex}
.mob-menu a{font-family:var(--heading);font-size:28px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.mob-menu a.accent{color:var(--clay)}

/* ══════════════════════ BUTTONS ══════════════════════ */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--sans);font-weight:600;font-size:16px;transition:all .2s ease;border-radius:999px;padding:16px 30px;white-space:nowrap;min-height:52px}
.btn-arrow{display:inline-block;transition:transform .2s ease}
.btn:hover .btn-arrow{transform:translateX(3px)}
.btn-primary{background:var(--clay);color:#fff;box-shadow:0 4px 14px rgba(225,97,54,.28)}
.btn-primary:hover{background:var(--clay-hover);transform:translateY(-2px);box-shadow:0 14px 32px rgba(225,97,54,.36)}
.btn-ghost{color:var(--teal);padding:16px 22px;font-weight:600}
.btn-ghost:hover{color:var(--teal-deep)}

/* ══════════════════════ PAGE HERO (shared shell, used on about/for-families/security) ══════════════════════ */
.page-hero{padding:clamp(150px,18vw,210px) 0 clamp(56px,7vw,88px);position:relative;background:var(--grad-mesh);overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-120px;right:-160px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(131,199,200,.22),transparent 65%);pointer-events:none}
.page-hero::after{content:'';position:absolute;bottom:-80px;left:-100px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(255,238,205,.5),transparent 65%);pointer-events:none}
.page-hero > .wrap,.page-hero > .wrap-narrow{position:relative;z-index:1}
.page-hero h1{max-width:18ch;margin-bottom:clamp(24px,3vw,36px);margin-top:clamp(24px,3vw,36px)}
.page-hero .lead{max-width:640px}

/* ══════════════════════ FOOTER ══════════════════════ */
.footer{background:var(--teal-ink);color:rgba(255,255,255,.5);padding:64px 0 40px}
.footer .wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.footer .top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand img{height:36px;margin-bottom:18px;filter:brightness(0) invert(1);opacity:.95}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.5);max-width:30ch;line-height:1.6}
.footer-col h5{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:rgba(255,255,255,.4);margin-bottom:16px;font-weight:700}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.72);padding:5px 0;transition:color .15s ease}
.footer-col a:hover{color:#fff}
.footer .bot{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:rgba(255,255,255,.35);flex-wrap:wrap;gap:12px}

/* ══════════════════════ REVEAL ══════════════════════ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.on{opacity:1;transform:translateY(0)}

/* ══════════════════════ MOBILE (shared) ══════════════════════ */
@media(max-width:960px){
  .footer .top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:640px){
  .nav{padding:14px 20px}
  .nav-logo{height:38px}
  .nav-logo img{height:38px}
  .nav.stuck .nav-logo img{height:32px}
  .nav-links{display:none}
  .nav-ham{display:flex}
  .footer .top{grid-template-columns:1fr;gap:28px}
  .footer .bot{flex-direction:column;align-items:flex-start}
}