/* ============================================================
   Dr Huan Chan — Lipid & Diabetes Specialist
   Site stylesheet
   ============================================================ */
:root{
  --teal-900:#083d3b;
  --teal-800:#0b4f4c;
  --teal-700:#0e6260;
  --teal-600:#127874;
  --teal-500:#19938d;
  --teal-100:#d7efed;
  --teal-50:#eef8f7;
  --gold-500:#c9a227;
  --gold-400:#d9b64a;
  --ink-900:#12232e;
  --ink-700:#33474f;
  --ink-500:#5c7078;
  --line:#dbe4e6;
  --bg:#fafcfb;
  --white:#ffffff;
  --radius:14px;
  --shadow-sm:0 2px 8px rgba(9,46,44,.07);
  --shadow-md:0 10px 30px rgba(9,46,44,.12);
  --font-body:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-display:"Fraunces","Georgia",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-body);color:var(--ink-900);
  background:var(--bg);line-height:1.65;font-size:16.5px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--teal-700)}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink-900);line-height:1.2;font-weight:600;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.6vw,3.3rem)}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.container{width:min(1140px,92%);margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--teal-800);color:#fff;padding:.6rem 1rem;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* ---------- Top utility bar ---------- */
.topbar{background:var(--teal-900);color:#cfe6e4;font-size:.83rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.45rem 0;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;font-weight:600}
.topbar a:hover{text-decoration:underline}
.topbar .dot{color:var(--gold-400)}

/* ---------- Header / nav ---------- */
.site-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .25s}
.site-header.scrolled{box-shadow:var(--shadow-md)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.65rem 0}
.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:inherit}
.brand img{width:48px;height:48px;border-radius:10px;object-fit:cover}
.brand-name{font-family:var(--font-display);font-size:1.12rem;font-weight:600;line-height:1.15}
.brand-tag{display:block;font-family:var(--font-body);font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--teal-600);font-weight:600}
.nav{display:flex;align-items:center;gap:.15rem;list-style:none;margin:0;padding:0}
.nav>li{position:relative}
.nav a,.nav button.drop{
  display:inline-flex;align-items:center;gap:.35rem;background:none;border:0;cursor:pointer;
  font:inherit;font-weight:500;color:var(--ink-700);text-decoration:none;
  padding:.55rem .8rem;border-radius:8px;font-size:.94rem;
}
.nav a:hover,.nav button.drop:hover,.nav li:focus-within>button.drop{background:var(--teal-50);color:var(--teal-800)}
.nav .caret{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.nav li:hover .caret,.nav li:focus-within .caret{transform:rotate(225deg) translateY(-1px)}
.dropdown{position:absolute;top:calc(100% + 6px);left:0;min-width:270px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);padding:.5rem;list-style:none;margin:0;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s;z-index:130}
.nav li:hover>.dropdown,.nav li:focus-within>.dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:block;padding:.5rem .75rem;border-radius:8px;font-size:.9rem;color:var(--ink-700)}
.dropdown a small{display:block;color:var(--ink-500);font-size:.76rem;line-height:1.35}
.dropdown a:hover{background:var(--teal-50);color:var(--teal-800)}
.nav .nav-cta{background:var(--teal-700);color:#fff;font-weight:600;padding:.6rem 1.1rem;margin-left:.4rem}
.nav .nav-cta:hover{background:var(--teal-800);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:.5rem .6rem;cursor:pointer}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink-900);margin:4px 0;border-radius:2px;transition:.2s}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;background:linear-gradient(135deg,var(--teal-900) 0%,var(--teal-800) 55%,var(--teal-700) 100%);overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1400' height='420' viewBox='0 0 1400 420'%3E%3Cpath d='M0 300 Q 175 240 350 300 T 700 300 T 1050 300 T 1400 300' fill='none' stroke='rgba(255,255,255,.06)' stroke-width='2'/%3E%3Cpath d='M0 340 Q 175 290 350 340 T 700 340 T 1050 340 T 1400 340' fill='none' stroke='rgba(255,255,255,.05)' stroke-width='2'/%3E%3Cpath d='M0 260 Q 175 210 350 260 T 700 260 T 1050 260 T 1400 260' fill='none' stroke='rgba(255,255,255,.045)' stroke-width='2'/%3E%3C/svg%3E") center/cover no-repeat;pointer-events:none}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center;padding:4.6rem 0 5rem}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-400);margin-bottom:1rem}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--gold-400)}
.hero h1{color:#fff;margin-bottom:.55em}
.hero .lede{font-size:1.13rem;color:#d5e9e7;max-width:34rem;margin-bottom:1.8rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;text-decoration:none;border-radius:10px;padding:.85rem 1.5rem;font-size:.97rem;transition:.2s;border:1.5px solid transparent;cursor:pointer;font-family:var(--font-body)}
.btn-primary{background:var(--gold-500);color:#231a00}
.btn-primary:hover{background:var(--gold-400);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-teal{background:var(--teal-700);color:#fff}
.btn-teal:hover{background:var(--teal-800)}
.hero-actions{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-card{background:#fff;border-radius:18px;padding:1.1rem;box-shadow:0 24px 60px rgba(0,0,0,.35);max-width:360px;margin-inline:auto;color:var(--ink-900)}
.hero-card img{border-radius:12px;width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;object-position:center 18%}
.hero-card .hc-name{font-family:var(--font-display);font-size:1.25rem;font-weight:600;margin:.9rem 0 .1rem}
.hero-card .hc-cred{color:var(--teal-700);font-weight:600;font-size:.9rem}
.hero-card .hc-role{color:var(--ink-500);font-size:.85rem}
.hero-badges{display:flex;gap:.45rem;flex-wrap:wrap;margin-top:.8rem}
.chip{background:var(--teal-50);color:var(--teal-800);border:1px solid var(--teal-100);font-size:.72rem;font-weight:600;padding:.28rem .6rem;border-radius:999px}

/* ---------- Trust strip ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust .container{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;padding:1.4rem 0}
.trust-item{display:flex;align-items:center;gap:.75rem;font-size:.9rem;color:var(--ink-700);font-weight:500}
.trust-item svg{flex:none;width:34px;height:34px;color:var(--teal-600)}

/* ---------- Sections ---------- */
.section{padding:4.6rem 0}
.section.alt{background:#fff;border-block:1px solid var(--line)}
.section-head{max-width:44rem;margin-bottom:2.6rem}
.section-head .kicker{color:var(--teal-600);font-weight:700;font-size:.8rem;letter-spacing:.13em;text-transform:uppercase;display:block;margin-bottom:.5rem}
.lead{font-size:1.08rem;color:var(--ink-500)}

/* About */
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:3.2rem;align-items:start}
.about-photo{position:sticky;top:110px;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-md)}
.about-photo img{width:100%;height:auto}
.about-body h2{margin-bottom:.3em}
.credline{color:var(--teal-700);font-weight:600;margin-bottom:1.2rem}
.pullquote{border-left:4px solid var(--gold-500);background:var(--teal-50);padding:1rem 1.3rem;border-radius:0 12px 12px 0;font-size:1.02rem;color:var(--ink-700);margin:1.4rem 0}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem 1.5rem;box-shadow:var(--shadow-sm);transition:.22s}
.section.alt .card{background:var(--bg)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--teal-100)}
.card .icon{width:52px;height:52px;border-radius:13px;background:linear-gradient(135deg,var(--teal-700),var(--teal-500));display:grid;place-items:center;margin-bottom:1.05rem}
.card .icon svg{width:26px;height:26px;color:#fff}
.card h3{margin-bottom:.4em}
.card p{color:var(--ink-500);font-size:.94rem;margin:0}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;counter-reset:step}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem 1.4rem 1.4rem;box-shadow:var(--shadow-sm)}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-18px;left:1.3rem;width:36px;height:36px;border-radius:50%;background:var(--teal-700);color:#fff;font-weight:700;display:grid;place-items:center;font-size:.95rem;font-family:var(--font-display)}
.step h3{margin:.55rem 0 .35em}
.step p{color:var(--ink-500);font-size:.9rem;margin:0}

/* Clinic / contact */
.clinic-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:2.4rem;align-items:start}
.info-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden}
.info-row{display:flex;gap:1rem;padding:1.15rem 1.4rem;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:0}
.info-row svg{flex:none;width:22px;height:22px;color:var(--teal-600);margin-top:.18rem}
.info-row strong{display:block;font-size:.95rem}
.info-row span,.info-row a{color:var(--ink-500);font-size:.92rem;text-decoration:none}
.info-row a:hover{color:var(--teal-700);text-decoration:underline}
.form-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:1.8rem}
.note{font-size:.82rem;color:var(--ink-500)}
label{display:block;font-weight:600;font-size:.87rem;margin:0 0 .35rem}
.field{margin-bottom:1.05rem}
input,textarea,select{width:100%;font:inherit;font-size:.94rem;padding:.68rem .85rem;border:1.5px solid var(--line);border-radius:9px;background:var(--bg);color:var(--ink-900);transition:border .15s, box-shadow .15s}
input:focus,textarea:focus{outline:none;border-color:var(--teal-500);box-shadow:0 0 0 3px rgba(25,147,141,.15)}
textarea{min-height:120px;resize:vertical}
.consent{display:flex;gap:.6rem;align-items:flex-start;font-size:.82rem;color:var(--ink-500);margin-bottom:1.1rem}
.consent input{width:auto;margin-top:.25rem}

/* Resources / link hub */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.link-card{display:flex;gap:.9rem;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem 1.3rem;text-decoration:none;color:inherit;box-shadow:var(--shadow-sm);transition:.2s}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--teal-100)}
.link-card .icon{flex:none;width:42px;height:42px;border-radius:11px;background:var(--teal-50);display:grid;place-items:center}
.link-card .icon svg{width:21px;height:21px;color:var(--teal-700)}
.link-card .lc-text{flex:1;min-width:0}
.link-card strong{display:block;font-size:.96rem;margin-bottom:.15rem;color:var(--ink-900)}
.link-card span{font-size:.83rem;color:var(--ink-500);line-height:1.45}
.link-card .ext{margin-left:auto;flex:none;color:var(--teal-600);align-self:center}

/* Steps list (libre page) */
.howto{max-width:46rem;margin-inline:auto}
.howto .btn-ghost{color:var(--teal-700);border-color:var(--teal-700)}
.howto .btn-ghost:hover{background:var(--teal-50)}
.howto ol{list-style:none;counter-reset:l;position:relative;padding:0 0 0 3.4rem;margin:2.2rem 0}
.howto ol::before{content:"";position:absolute;left:17px;top:8px;bottom:8px;width:2px;background:var(--teal-100)}
.howto li{counter-increment:l;position:relative;padding-bottom:1.5rem;font-size:1.02rem}
.howto li::before{content:counter(l);position:absolute;left:-3.4rem;width:36px;height:36px;border-radius:50%;background:#fff;border:2px solid var(--teal-600);color:var(--teal-700);font-weight:700;display:grid;place-items:center;font-family:var(--font-display)}
.howto li strong{color:var(--teal-800)}
.page-hero{background:linear-gradient(135deg,var(--teal-900),var(--teal-700));color:#fff;padding:3.4rem 0 3.2rem}
.page-hero h1{color:#fff;font-size:clamp(1.8rem,3.6vw,2.6rem);margin-bottom:.3em}
.page-hero p{color:#d5e9e7;margin:0;max-width:40rem}
.breadcrumbs{font-size:.8rem;color:#a9cfcc;margin-bottom:.9rem}
.breadcrumbs a{color:#d5e9e7;text-decoration:none}
.breadcrumbs a:hover{text-decoration:underline}

/* Callout */
.callout{display:flex;gap:.9rem;background:var(--teal-50);border:1px solid var(--teal-100);border-radius:12px;padding:1.1rem 1.3rem;font-size:.92rem;color:var(--ink-700)}
.callout svg{flex:none;width:22px;height:22px;color:var(--teal-700);margin-top:.15rem}

/* Footer */
.site-footer{background:var(--teal-900);color:#b8d4d1;font-size:.88rem}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2.5rem;padding:3.2rem 0 2.2rem}
.site-footer h4{color:#fff;font-family:var(--font-body);font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:1rem}
.site-footer a{color:#b8d4d1;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:.5rem}
.footer-note{border-top:1px solid rgba(255,255,255,.12);padding:1.2rem 0;font-size:.78rem;color:#8db4b0;line-height:1.6}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Responsive ---------- */
@media(max-width:1020px){
  .cards,.link-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:2.2rem}
  .trust .container{grid-template-columns:repeat(2,1fr);gap:1rem 1.5rem}
}
@media(max-width:860px){
  .hero-inner{grid-template-columns:1fr;padding-top:3rem;padding-bottom:3.4rem;gap:2.2rem}
  .about-grid,.clinic-grid{grid-template-columns:1fr;gap:2rem}
  .about-photo{position:static;max-width:420px}
  .nav-toggle{display:block}
  .nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:.6rem 4%;gap:.1rem;display:none;box-shadow:var(--shadow-md)}
  .nav.open{display:flex}
  .nav a,.nav button.drop{width:100%;justify-content:space-between}
  .dropdown{position:static;opacity:1;visibility:hidden;transform:none;box-shadow:none;border:0;border-left:2px solid var(--teal-100);border-radius:0;margin:0 0 .3rem .6rem;display:none;padding:.15rem .4rem}
  .nav li.open>.dropdown{display:block;visibility:visible}
  .nav .nav-cta{margin:.5rem 0;text-align:center;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:1.8rem}
}
@media(max-width:560px){
  .cards,.link-grid,.steps,.trust .container{grid-template-columns:1fr}
  .section{padding:3.2rem 0}
  .hero-actions .btn{width:100%;justify-content:center}
}
/* Print */
@media print{.topbar,.site-header,.site-footer .footer-links,.hero-actions{display:none}}


/* ── Self-referral open/closed toggle (flag lives in assets/js/main.js) ── */
/* Closed state is the CSS default, so content stays correct even without JS. */
.sr-open,.sr-open-i{display:none!important}
body.accepting-self-referrals .sr-closed,body.accepting-self-referrals .sr-closed-i{display:none!important}
body.accepting-self-referrals .sr-open{display:block!important}
body.accepting-self-referrals span.sr-open,body.accepting-self-referrals a.sr-open-i{display:inline-flex!important}
.referral-notice{background:#fbf3e4;border-bottom:1px solid #eeddc0;color:#7a5518;font-size:.9rem;padding:.65rem 0;text-align:center}
.referral-notice strong{color:#8a5f14}