/* thedentistclinic.com — design system
   Colours sampled from the clinic's own logo artwork (uploads/2024/02/head-2024.jpg):
   navy #363c78, mid #576393, aqua #98d0d8.
   Thai must never inherit monospace or letter-spacing — .num sets tabular figures only. */

:root{
  --navy:#363c78; --navy-deep:#262a55; --mid:#576393; --aqua:#98d0d8; --aqua-ink:#2f7d8c;
  --ground:#f7f8fb; --panel:#ffffff; --ink:#1c1f33; --muted:#6b7089; --rule:#dfe3ee;
  --band:#eef1f8; --line:#06C755;
  --wrap:1120px;
}
@media (prefers-color-scheme:dark){
  :root{ --navy:#8b93d8; --navy-deep:#0f1124; --mid:#8a93c4; --aqua:#98d0d8; --aqua-ink:#98d0d8;
    --ground:#14162a; --panel:#1c1f38; --ink:#e8eaf4; --muted:#9aa0bd; --rule:#2b2f4e; --band:#1a1d34; }
}
:root[data-theme="dark"]{ --navy:#8b93d8; --navy-deep:#0f1124; --mid:#8a93c4; --aqua:#98d0d8;
  --aqua-ink:#98d0d8; --ground:#14162a; --panel:#1c1f38; --ink:#e8eaf4; --muted:#9aa0bd;
  --rule:#2b2f4e; --band:#1a1d34; }
:root[data-theme="light"]{ --navy:#363c78; --navy-deep:#262a55; --mid:#576393; --aqua:#98d0d8;
  --aqua-ink:#2f7d8c; --ground:#f7f8fb; --panel:#ffffff; --ink:#1c1f33; --muted:#6b7089;
  --rule:#dfe3ee; --band:#eef1f8; }

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;background:var(--ground);color:var(--ink);
  font-family:"Sukhumvit Set","Thonburi","IBM Plex Sans Thai",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;}
a{color:var(--aqua-ink);}
.serif{font-family:"Iowan Old Style",Georgia,"Times New Roman",serif;font-style:italic;}
/* digits only — never applied to a Thai-bearing element on its own */
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- nav ---------- */
nav{display:flex;align-items:center;gap:20px;padding:14px 22px;background:var(--panel);
  border-bottom:1px solid var(--rule);position:sticky;top:0;z-index:20;flex-wrap:wrap;}
.logo{display:flex;align-items:center;gap:10px;margin-right:auto;text-decoration:none;}
.pebbles{width:26px;height:34px;flex:none;}
.wordmark{font-size:15.5px;color:var(--navy);line-height:1.15;}
.wordmark small{display:block;font-style:normal;
  font-family:"Sukhumvit Set","Thonburi",sans-serif;font-size:11.5px;color:var(--muted);}
.navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.navlinks a{color:var(--ink);text-decoration:none;font-size:14.5px;}
.navlinks a:hover,.navlinks a.on{color:var(--aqua-ink);}
.navcta{background:var(--navy);color:#fff !important;padding:8px 16px;border-radius:6px;}
.menubtn{display:none;background:none;border:1px solid var(--rule);border-radius:6px;
  color:var(--ink);font-size:18px;padding:4px 11px;cursor:pointer;}

/* ---------- shared blocks ---------- */
.hero,.strip,section,.page,footer{max-width:var(--wrap);margin-inline:auto;}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
  padding:48px 22px 40px;}
.hero h1{margin:0 0 14px;font-size:clamp(26px,3.6vw,40px);line-height:1.3;
  letter-spacing:-.01em;text-wrap:balance;}
.hero p{margin:0 0 24px;color:var(--muted);font-size:17px;max-width:44ch;}
.heroart{aspect-ratio:3/2;border-radius:10px;overflow:hidden;border:1px solid var(--rule);}
.heroart img{width:100%;height:100%;object-fit:cover;display:block;}

.btns{display:flex;gap:10px;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:7px;
  text-decoration:none;font-size:15px;font-weight:700;}
.btn.line{background:var(--line);color:#fff;}
.btn.msg{background:var(--navy);color:#fff;}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--rule);font-weight:400;}
.btn:focus-visible,a:focus-visible,.menubtn:focus-visible{outline:3px solid var(--aqua);outline-offset:2px;}

.strip{display:flex;flex-wrap:wrap;background:var(--band);border-block:1px solid var(--rule);
  border-radius:10px;overflow:hidden;margin-bottom:8px;}
.strip div{flex:1 1 210px;padding:15px 22px;border-right:1px solid var(--rule);font-size:14px;}
.strip div:last-child{border-right:none;}
.strip b{display:block;color:var(--navy);font-size:15px;}

section{padding:42px 22px;}
h2{margin:0 0 6px;font-size:23px;letter-spacing:-.01em;}
.sec-sub{margin:0 0 22px;color:var(--muted);max-width:62ch;}

/* ---------- branches ---------- */
.branches{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.branch{border:1px solid var(--rule);border-radius:10px;padding:18px;background:var(--panel);}
.branch h3{margin:0 0 3px;font-size:18px;color:var(--navy);}
.branch .tag{font-size:12px;color:var(--muted);}
.shot{border-radius:8px;overflow:hidden;border:1px solid var(--rule);aspect-ratio:3/2;margin-bottom:14px;}
.shot img{width:100%;height:100%;object-fit:cover;display:block;}
.kv{display:grid;grid-template-columns:62px 1fr;gap:6px 12px;margin:14px 0 16px;font-size:14.5px;}
.kv dt{color:var(--muted);} .kv dd{margin:0;}

/* ---------- cards / chips ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.card{border:1px solid var(--rule);border-radius:9px;padding:18px;background:var(--panel);}
.card h4{margin:0 0 10px;font-size:16px;}
.card p{margin:0 0 8px;font-size:14px;color:var(--muted);}
.chips{display:flex;flex-wrap:wrap;gap:7px;}
.chip{display:inline-block;padding:5px 11px;border-radius:6px;background:var(--band);
  color:var(--navy);font-size:14px;text-decoration:none;border:1px solid var(--rule);}
.chip:hover{border-color:var(--aqua);color:var(--aqua-ink);}
.brands{display:flex;flex-wrap:wrap;gap:7px;}
.brand{border:1px solid var(--rule);border-radius:6px;padding:6px 12px;font-size:13.5px;
  background:var(--ground);color:var(--navy);font-weight:700;}

/* ---------- content pages ---------- */
.page{padding:34px 22px 8px;}
.ph h1{margin:0 0 20px;font-size:clamp(24px,3.2vw,33px);line-height:1.3;letter-spacing:-.01em;}
.prose{max-width:68ch;}
.prose h3,.prose h4{margin:26px 0 6px;font-size:18px;}
.prose p{margin:0 0 16px;}
.prose ul,.prose ol{margin:0 0 16px;padding-left:22px;}
.prose li{margin-bottom:5px;}
.prose figure{margin:22px 0;}
.prose figure img{border-radius:8px;border:1px solid var(--rule);}
.tablewrap{overflow-x:auto;border:1px solid var(--rule);border-radius:8px;margin:0 0 18px;}
table{border-collapse:collapse;width:100%;min-width:420px;background:var(--panel);}
td,th{padding:10px 13px;border-bottom:1px solid var(--rule);text-align:left;font-size:14.5px;vertical-align:top;}
tr:last-child td{border-bottom:none;}

.related{border-top:1px solid var(--rule);}
.cta{background:var(--band);border-radius:10px;margin-bottom:36px;}
.fine{font-size:12.5px;color:var(--muted);margin-top:14px;}

/* ---------- footer ---------- */
footer{background:var(--navy-deep);color:#cfd4ea;padding:32px 22px;font-size:14px;
  max-width:none;margin-top:20px;}
footer .fcols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  max-width:var(--wrap);margin-inline:auto;}
footer h5{margin:0 0 8px;color:#fff;font-size:14.5px;}
footer p{margin:0 0 8px;}
footer a{color:var(--aqua);}
footer .fine{max-width:var(--wrap);margin:18px auto 0;color:#9aa2c4;}

@media (max-width:860px){
  .hero{grid-template-columns:1fr;padding:28px 18px 30px;}
  .heroart{order:-1;}
  .branches,.grid3,footer .fcols{grid-template-columns:1fr;}
  section,.page{padding:28px 18px;}
  .menubtn{display:block;}
  .navlinks{display:none;width:100%;flex-direction:column;align-items:flex-start;gap:12px;padding-top:12px;}
  .navlinks.open{display:flex;}
}
@media (prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important;}}

/* ---------- chat chooser ----------
   A single "ทักแชท" button cannot know which of the two branches the visitor wants,
   so it opens a chooser instead of silently jumping to one channel. */
.chatwrap{position:relative;}
.chatbtn{font:inherit;font-size:14px;border:0;cursor:pointer;}
.chatmenu{position:absolute;right:0;top:calc(100% + 10px);z-index:40;min-width:272px;
  background:var(--panel);border:1px solid var(--rule);border-radius:10px;padding:8px;
  box-shadow:0 18px 44px -22px rgba(20,22,42,.55);}
.chatmenu[hidden]{display:none;}
.chathead{margin:4px 8px 8px;font-size:12.5px;color:var(--muted);}
.chatmenu a{display:block;padding:10px 12px;border-radius:7px;text-decoration:none;
  color:var(--ink);font-size:14.5px;}
.chatmenu a b{color:var(--navy);}
.chatmenu a:hover{background:var(--band);}
@media (max-width:860px){
  .chatwrap{width:100%;}
  .chatbtn{width:100%;text-align:center;}
  .chatmenu{position:static;min-width:0;margin-top:8px;box-shadow:none;}
}

/* ---------- patient testimonials ----------
   No photographs: patient faces are not republished (PDPA consent for 2014 images cannot be
   evidenced). Attribution therefore has to be carried entirely by type and spacing. */
.tlist{display:grid;gap:16px;max-width:760px;}
.tcard{border:1px solid var(--rule);border-radius:10px;background:var(--panel);overflow:hidden;}
.t-who{background:var(--band);border-bottom:1px solid var(--rule);padding:12px 18px;
  display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;}
.t-who h3{margin:0;font-size:16.5px;color:var(--navy);}
.t-treat{font-size:13px;color:var(--muted);}
.t-treat::before{content:"เข้ารับบริการ ";}
.t-body{padding:14px 18px 4px;}
.t-body p{margin:0 0 12px;position:relative;padding-left:16px;font-size:15px;}
.t-body p::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;
  border-radius:50%;background:var(--aqua);}