/* Layout: "phiếu kế hoạch điều trị" — clinical clarity, white paper + mint-tinted bands, one deep-teal statement band; the yellow smile arc from the logo is the single flourish. */
:root{
  --teal:#0C6B63;      /* Xanh LACA – chủ đạo */
  --mint:#43C1A6;      /* Xanh mint – phụ trợ */
  --sun:#FFC629;       /* Vàng nụ cười – điểm nhấn */
  --ink:#1F2937;       /* Đen charcoal – văn bản */
  --paper:#FFFFFF;
  --mist:#EEF6F4;      /* nền phụ ngả mint */
  --card:#FFFFFF;
  --line:#D5E6E2;
  --muted:#53646A;
  --accent-text:#0C6B63;
  --band:#0C6B63;
  --band-ink:#FFFFFF;
  --band-soft:#BFE7DE;
  --ph-bg:#FFF3C7;
  --ph-fg:#6E5200;
  --btn-ink:#FFFFFF;
  --focus:#FFC629;
  --shadow:0 18px 40px -22px rgba(12,107,99,.45);
  --logo-on-light:inline-block;
  --logo-on-dark:none;
  --f-display:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-body:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-data:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --step--1:clamp(.82rem,.8rem + .1vw,.88rem);
  --step-0:clamp(1rem,.97rem + .15vw,1.06rem);
  --step-1:clamp(1.15rem,1.08rem + .35vw,1.35rem);
  --step-2:clamp(1.4rem,1.25rem + .7vw,1.85rem);
  --step-3:clamp(1.8rem,1.5rem + 1.4vw,2.6rem);
  --step-4:clamp(2.3rem,1.8rem + 2.6vw,3.9rem);
  --r:14px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#E6F0EE; --paper:#0B1615; --mist:#0F201E; --card:#122522; --line:#22403B; --muted:#9DB4AF;
    --accent-text:#5ED3B8; --band:#0A4C46; --band-ink:#F2FBF9; --band-soft:#9FD9CC;
    --ph-bg:#3A300C; --ph-fg:#FFD969; --btn-ink:#FFFFFF; --shadow:0 18px 40px -22px rgba(0,0,0,.8);
    --logo-on-light:none; --logo-on-dark:inline-block; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --ink:#E6F0EE; --paper:#0B1615; --mist:#0F201E; --card:#122522; --line:#22403B; --muted:#9DB4AF;
  --accent-text:#5ED3B8; --band:#0A4C46; --band-ink:#F2FBF9; --band-soft:#9FD9CC;
  --ph-bg:#3A300C; --ph-fg:#FFD969; --btn-ink:#FFFFFF; --shadow:0 18px 40px -22px rgba(0,0,0,.8);
  --logo-on-light:none; --logo-on-dark:inline-block; color-scheme:dark;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:var(--step-0);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;margin:0;text-wrap:balance;letter-spacing:-.015em}
p{margin:0}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:6px}
.wrap{max-width:1160px;margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--f-data);font-size:var(--step--1);font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-text)}
.lede{color:var(--muted);font-size:var(--step-1);max-width:58ch}
.ph{background:var(--ph-bg);color:var(--ph-fg);border-radius:5px;padding:0 .35em;font-family:var(--f-data);font-size:.92em;white-space:nowrap}
.logo-light{display:var(--logo-on-light)}
.logo-dark{display:var(--logo-on-dark)}


/* header */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:1.25rem;padding-block:.7rem}
.brand img{height:40px;width:auto}
.brand img.logo-light{display:var(--logo-on-light)}
.brand img.logo-dark{display:var(--logo-on-dark)}
.brand{display:flex;align-items:center}
.nav{display:flex;gap:1.4rem;margin-left:auto;font-weight:500;font-size:.95rem}
.nav a{text-decoration:none;color:var(--ink);opacity:.86}
.nav a:hover{opacity:1;color:var(--accent-text)}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;font-family:var(--f-data);font-size:.8rem;font-weight:600}
.lang-unused{border:0;background:transparent;color:var(--muted);padding:.3rem .65rem;border-radius:999px;cursor:pointer;font:inherit}
.lang-unused2{background:var(--teal);color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:999px;padding:.8rem 1.35rem;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:var(--f-body);font-size:.98rem;line-height:1.2;transition:transform .15s ease,background-color .15s ease}
.btn-primary{background:var(--teal);color:var(--btn-ink)}
.btn-primary:hover{background:#09564F;transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--mint)}
.head-cta{padding:.6rem 1.05rem;font-size:.92rem}

/* hero */
.hero{padding-block:clamp(2.5rem,6vw,5rem) clamp(2.5rem,5vw,4.5rem);background:linear-gradient(180deg,var(--paper) 0%,var(--mist) 100%)}
.hero .wrap{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.hero-copy{display:grid;gap:1.4rem;min-width:0}
.hero h1{font-size:var(--step-4);font-weight:800;color:var(--ink)}
.smile{position:relative;white-space:nowrap;color:var(--accent-text)}
.smile svg{position:absolute;left:-2%;bottom:-.32em;width:104%;height:.5em;overflow:visible}
.smile path{fill:none;stroke:var(--sun);stroke-width:7;stroke-linecap:round;stroke-dasharray:240;stroke-dashoffset:0;animation:draw 1.1s .3s ease-out both}
@keyframes draw{from{stroke-dashoffset:240}to{stroke-dashoffset:0}}
.hero-actions{display:flex;gap:.8rem;flex-wrap:wrap}
.facts{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;font-size:var(--step--1);color:var(--muted);font-family:var(--f-data)}
.facts span{display:inline-flex;align-items:center;gap:.45rem}
.facts i{width:8px;height:8px;border-radius:50%;background:var(--mint);display:inline-block}

/* treatment plan card */
.plan{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:1.4rem 1.4rem 1.2rem;display:grid;gap:1rem;min-width:0;position:relative}
.plan-head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;border-bottom:1px dashed var(--line);padding-bottom:.8rem}
.plan-head strong{font-family:var(--f-display);font-size:1.05rem}
.tag{font-family:var(--f-data);font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ph-fg);background:var(--ph-bg);border-radius:999px;padding:.2rem .6rem;white-space:nowrap}
.chart{display:grid;gap:4px;font-family:var(--f-data);font-variant-numeric:tabular-nums}
.arch{display:grid;grid-template-columns:repeat(16,1fr);gap:3px}
.arch span{font-size:.62rem;text-align:center;padding:.28rem 0;border-radius:4px;background:var(--mist);color:var(--muted);border:1px solid transparent}
.arch span.mid{border-right:2px solid var(--line)}
.arch span.hit{background:var(--sun);color:#3B2B00;font-weight:700}
.chart small{font-size:.68rem;color:var(--muted);display:flex;justify-content:space-between}
.rows{display:grid;gap:.65rem;margin:0;padding:0;list-style:none}
.rows li{display:grid;grid-template-columns:auto 1fr;gap:.75rem;align-items:start}
.check{width:24px;height:24px;border-radius:50%;background:var(--teal);display:grid;place-items:center;margin-top:2px}
.check svg{width:13px;height:13px;stroke:#fff;fill:none;stroke-width:3}
.rows b{display:block;font-size:.95rem}
.rows p{color:var(--muted);font-size:.88rem;line-height:1.45}
.plan-foot{border-top:1px dashed var(--line);padding-top:.8rem;font-size:.85rem;color:var(--muted);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.plan-foot b{color:var(--accent-text)}

/* sections */
section.block{padding-block:clamp(3.5rem,7vw,6rem)}
.alt{background:var(--mist)}
.sec-head{display:grid;gap:.8rem;margin-bottom:clamp(1.8rem,4vw,3rem);max-width:760px}
.sec-head h2{font-size:var(--step-3);font-weight:700}

/* statement band */
.band{background:var(--band);color:var(--band-ink)}
.band .eyebrow{color:var(--sun)}
.statement{font-size:var(--step-3);font-weight:800;line-height:1.2;max-width:22ch}
.statement em{font-style:normal;color:var(--sun)}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:clamp(2rem,4vw,3rem);border-top:1px solid color-mix(in srgb,var(--band-ink) 25%,transparent);padding-top:1.6rem}
.pillars div{display:grid;gap:.5rem;min-width:0}
.pillars h3{font-size:1.1rem;font-weight:700}
.pillars p{color:var(--band-soft);font-size:.95rem}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;counter-reset:s;list-style:none;margin:0;padding:0}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.5rem;display:grid;gap:.6rem;align-content:start;min-width:0}
.steps li::before{content:counter(s);font-family:var(--f-data);font-weight:600;font-size:.85rem;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--mist);color:var(--accent-text);border:1px solid var(--line)}
.steps h3{font-size:1.15rem}
.steps p{color:var(--muted)}
.note{margin-top:1.4rem;font-size:var(--step--1);color:var(--muted);max-width:70ch}

/* services */
.svc{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--teal)}
.svc article{padding:1.4rem 1.3rem 1.6rem 0;display:grid;gap:.8rem;align-content:start;min-width:0}
.svc article+article{padding-left:1.3rem;border-left:1px solid var(--line)}
.svc h3{font-size:1.12rem}
.svc .who{font-size:.86rem;color:var(--muted)}
.svc ul{margin:0;padding:0;list-style:none;display:grid;gap:.45rem}
.svc li{padding-left:1.1rem;position:relative;font-size:.95rem}
.svc li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--mint)}

/* audiences */
.aud{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.aud article{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem;display:grid;gap:.9rem;align-content:start;min-width:0}
.aud .k{font-family:var(--f-data);font-size:.75rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--accent-text)}
.aud blockquote{margin:0;font-family:var(--f-display);font-size:1.25rem;font-weight:600;line-height:1.35}
.aud p{color:var(--muted);font-size:.95rem}

/* learn */
.learn{display:grid;grid-template-columns:1fr 1.25fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.magnet{background:var(--band);color:var(--band-ink);border-radius:18px;padding:1.8rem;display:grid;gap:1rem}
.magnet h3{font-size:var(--step-2)}
.magnet p{color:var(--band-soft)}
.magnet .btn{background:var(--sun);color:#2B2000;justify-self:start}
.posts{display:grid;gap:0;margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}
.posts li{border-bottom:1px solid var(--line)}
.posts a{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:center;padding:1.15rem 0;text-decoration:none}
.posts a:hover h3{color:var(--accent-text)}
.posts h3{font-size:1.12rem;font-weight:600}
.posts small{display:block;color:var(--muted);font-size:.82rem;margin-top:.25rem;font-family:var(--f-data)}
.posts .soon{font-family:var(--f-data);font-size:.75rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:.2rem .6rem;white-space:nowrap}

/* people + clinic */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.panel{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;display:grid;grid-template-rows:auto 1fr;min-width:0}
.photo{aspect-ratio:16/9;max-width:100%;background:repeating-linear-gradient(135deg,var(--mist) 0 14px,color-mix(in srgb,var(--mist) 70%,var(--line)) 14px 28px);display:grid;place-items:center;color:var(--muted);font-family:var(--f-data);font-size:.82rem;text-align:center;padding:1rem}
.panel .body{padding:1.5rem;display:grid;gap:.9rem;align-content:start}
.panel h3{font-size:var(--step-2)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:.45rem 1rem;margin:0;font-size:.95rem}
.kv dt{color:var(--muted);font-family:var(--f-data);font-size:.82rem;padding-top:.15rem}
.kv dd{margin:0;min-width:0}

/* booking */
.book{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(1.5rem,5vw,4rem);align-items:start}
form{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:clamp(1.2rem,3vw,2rem);display:grid;gap:1rem;grid-template-columns:1fr 1fr;box-shadow:var(--shadow);min-width:0}
.field{display:grid;gap:.35rem;min-width:0}
.field.full{grid-column:1/-1}
label{font-size:.88rem;font-weight:600}
input,select,textarea{font:inherit;font-size:.98rem;color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:10px;padding:.7rem .8rem;width:100%;min-width:0}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--mint);box-shadow:0 0 0 3px color-mix(in srgb,var(--mint) 30%,transparent)}
textarea{min-height:92px;resize:vertical}
.consent{grid-column:1/-1;display:grid;grid-template-columns:auto 1fr;gap:.6rem;align-items:start;font-size:.86rem;color:var(--muted)}
.consent input{width:18px;height:18px;margin-top:.2rem;accent-color:var(--teal)}
.form-foot{grid-column:1/-1;display:flex;gap:1rem;align-items:center;flex-wrap:wrap}
.msg{font-size:.9rem;color:var(--accent-text);font-weight:500}
.hours{display:grid;gap:.4rem;margin-top:1.4rem;font-family:var(--f-data);font-variant-numeric:tabular-nums}
.hours div{display:flex;justify-content:space-between;gap:1rem;border-bottom:1px dashed var(--line);padding-block:.45rem;font-size:.92rem}
.hours span:last-child{font-weight:600}

/* footer */
footer{background:var(--band);color:var(--band-ink);padding-block:clamp(3rem,6vw,4.5rem) 2rem}
footer .grid{display:grid;grid-template-columns:1.1fr 1.2fr .8fr;gap:2rem}
footer img{height:84px;width:auto}
footer h4{margin:0 0 .8rem;font-family:var(--f-data);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--sun)}
.legal{display:grid;gap:.35rem;font-size:.92rem;color:var(--band-soft)}
.legal b{color:var(--band-ink);font-weight:600}
footer .ph{background:rgba(255,198,41,.18);color:var(--sun)}
.links{display:grid;gap:.45rem;font-size:.95rem}
.links a{color:var(--band-ink);text-decoration:none;opacity:.9}
.links a:hover{opacity:1;text-decoration:underline}
.fine{margin-top:2.5rem;padding-top:1.2rem;border-top:1px solid color-mix(in srgb,var(--band-ink) 20%,transparent);font-size:.8rem;color:var(--band-soft);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* mobile action bar */
.dock{display:none}

@media (max-width: 980px){
  .nav{display:none}
  .head-right{margin-left:auto}
  .hero .wrap,.learn,.book{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr 1fr}
  .svc{grid-template-columns:1fr 1fr}
  .svc article:nth-child(3){padding-left:0;border-left:0}
  .svc article:nth-child(n+3){border-top:1px solid var(--line)}
  footer .grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 720px){
  .steps,.aud,.duo{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr}
  .svc{grid-template-columns:1fr}
  .svc article,.svc article+article{padding-left:0;border-left:0}
  .svc article+article{border-top:1px solid var(--line)}
  form{grid-template-columns:1fr}
  footer .grid{grid-template-columns:1fr}
  .head-cta{display:none}
  .brand img{height:34px}
  .dock{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;gap:.6rem;background:var(--paper);border-top:1px solid var(--line);padding:.6rem max(16px,env(safe-area-inset-right,0px)) calc(.6rem + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
  .dock .btn{flex:1;padding:.75rem .5rem}
  body{padding-bottom:76px}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .smile path{animation:none}
  .btn{transition:none}
}

body{margin:0}
img{max-width:100%;height:auto}
.head-right{display:flex;gap:.7rem;align-items:center}
.lang a{color:var(--muted);padding:.3rem .65rem;border-radius:999px;text-decoration:none}
.lang a[aria-current="page"]{background:var(--teal);color:#fff}
.muted{color:var(--muted)}
.process{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3.5rem);align-items:center}
.process .steps{grid-template-columns:1fr}
.shot{position:relative;margin:0;border-radius:18px;overflow:hidden;min-width:0}
.shot img{display:block;width:100%;height:auto}
.panel .shot{border-radius:0}
.panel .shot img{aspect-ratio:16/9;object-fit:cover}
.shot figcaption{position:absolute;left:12px;bottom:12px;background:rgba(17,24,39,.72);color:#fff;font-family:var(--f-data);font-size:.72rem;letter-spacing:.04em;padding:.25rem .6rem;border-radius:999px}
.aud article{padding:0;overflow:hidden}
.aud article img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.aud article:first-child img{object-position:50% 35%}
.aud .txt{padding:1.4rem 1.5rem 1.6rem;display:grid;gap:.9rem}
.kv a{color:var(--accent-text);font-weight:600}
.band .statement{color:var(--band-ink)}
.lede-band{color:var(--band-soft);font-size:var(--step-1);max-width:46ch;margin-top:1rem}
.contact{display:grid;gap:.9rem;min-width:0}
.contact-card{display:grid;gap:.2rem;background:color-mix(in srgb,var(--band-ink) 10%,transparent);border:1px solid color-mix(in srgb,var(--band-ink) 22%,transparent);border-radius:16px;padding:1.1rem 1.3rem;text-decoration:none;color:var(--band-ink)}
.contact-card:hover{background:color-mix(in srgb,var(--band-ink) 16%,transparent)}
.contact-card strong{font-family:var(--f-display);font-size:var(--step-2);font-variant-numeric:tabular-nums}
.ck{font-family:var(--f-data);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--sun)}
.band .hours div{border-bottom-color:color-mix(in srgb,var(--band-ink) 25%,transparent)}
.fine-band{font-size:.85rem;color:var(--band-soft)}
.legal a{color:var(--band-ink)}
@media (max-width: 980px){ .process{grid-template-columns:1fr} }