/* Thai massage pages in the Thunder & Lightning house style.
   Theme: dark for every first visit whatever the OS says; light is opt-in via the
   sun/moon button (theme.js sets data-theme on <html>, remembered as 'tl-theme').
   Layout: one centred reading column; a glowing title block like the library hub, then
   library-style cards. Mono uppercase labels name each section. Forms reuse the Thunder &
   Lightning app's panels and gold pill toggles.
   Palette: dark first (the Thunder & Lightning app's night ground, ivory ink, gold); light mode
   uses the library's ivory reading surface with a deepened gold for contrast.
   Form fields have their own outline colour (--field-line, at least 3:1 against the card in both
   themes) so an empty field stays visible; --line stays the soft rule for cards and pills. */
:root{
  --bg:#0c0e16; --bg2:#0e1120; --panel:#141726; --panel2:#1b1f33; --sel:#211d12;
  --ink:#ece6d6; --muted:#a89f88; --gold:#c8a24a; --goldink:#1a1407; --line:#2a2e44; --field-line:#666b88;
  --thread:#e8846a; --violet:#b39ddb; --ok:#8ccf8c;
  --glow-a:rgba(244,151,126,.16); --glow-b:rgba(216,162,74,.12); --glow-c:rgba(154,123,208,.12);
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --display:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --serif:"Spectral","Iowan Old Style",Palatino,Georgia,serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --r:14px; --r-sm:9px; --r-pill:999px; --max:40rem;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --bg:#f6f2e9; --bg2:#fcfaf4; --panel:#fcfaf4; --panel2:#efe8d8; --sel:#f7e7bd;
  --ink:#1a1620; --muted:#565060; --gold:#7d5f16; --goldink:#ffffff; --line:#e3dac6; --field-line:#8a806b;
  --thread:#b8492f; --violet:#6b4fa3; --ok:#217a3d;
  --glow-a:rgba(228,105,78,.12); --glow-b:rgba(200,162,74,.16); --glow-c:rgba(154,123,208,.10);
  --shadow:0 10px 30px rgba(26,22,32,.05);
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);
  font-size:clamp(1.02rem,.96rem + .3vw,1.12rem);line-height:1.7;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--max);margin:0 auto;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
a{color:var(--gold);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
h1,h2{font-family:var(--display);font-weight:600;line-height:1.1;text-wrap:balance;margin:0}

/* ── title block (library hub) ── */
header.hero{position:relative;text-align:center;padding-block:clamp(2.4rem,7vw,4rem) 1.6rem;overflow-x:clip}
.hero-glow{position:absolute;inset:-10% 8% auto;height:16rem;pointer-events:none;background:
  radial-gradient(ellipse at center,var(--glow-a),transparent 62%),
  radial-gradient(ellipse at 30% 60%,var(--glow-b),transparent 55%),
  radial-gradient(ellipse at 70% 40%,var(--glow-c),transparent 55%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 35%,transparent 70%);
  mask-image:radial-gradient(ellipse at center,#000 35%,transparent 70%)}
.hero > :not(.hero-glow){position:relative}
.kicker,.label{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin:0}
.kicker{margin-bottom:1.1rem}
/* light mode: the hero glow tints the ground behind the kicker, so it gets a darker gold (AA 4.5:1) */
:root[data-theme="light"] .hero .kicker{color:#6b5012}
h1{font-weight:500;font-size:clamp(2.3rem,8vw,3.6rem);letter-spacing:.14em;text-transform:uppercase;line-height:1.05}
h1 .amp{display:inline-block;font-style:italic;text-transform:none;letter-spacing:0;color:var(--thread);padding:0 .1em}
.rule{width:min(12rem,46vw);height:1px;border:0;margin:1.1rem auto 1rem;
  background:linear-gradient(90deg,transparent,var(--gold),var(--thread),var(--violet),transparent)}
.sub{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 1.3rem}
.lead{color:var(--muted);font-size:1.08rem;max-width:32em;margin:0 auto 1.5rem;text-wrap:pretty}
.hero.compact{padding-block:1.6rem 1.2rem}
.hero.compact h1{font-size:clamp(1.9rem,6.5vw,2.6rem);letter-spacing:.1em}

/* ── buttons ── */
.btns{display:flex;gap:.6rem;flex-wrap:wrap;justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1.5rem;
  border-radius:var(--r-pill);background:var(--gold);color:var(--goldink);border:1px solid var(--gold);
  font:600 1rem/1.2 var(--serif);text-decoration:none;cursor:pointer;transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--gold)}

/* ── cards (library items) ── */
section.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:1.35rem 1.4rem 1.3rem;margin:0 0 1rem;box-shadow:var(--shadow)}
section.card > .label{margin-bottom:.45rem}
section.card h2{font-size:1.6rem;margin-bottom:.7rem}
section.card > :last-child{margin-bottom:0}
section.card p{margin:0 0 .9rem}
.m-note{color:var(--muted);font-size:.95rem}
ul.facts{padding-left:1.1em;margin:0} ul.facts li{margin:.3rem 0} ul.facts li::marker{color:var(--gold)}
.facts-row{display:flex;flex-wrap:wrap;justify-content:center;gap:.4rem;margin:0 0 1.6rem;padding:0;list-style:none}
.facts-row li{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  padding:.35rem .75rem;border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink);background:var(--bg2)}
ol.steps{list-style:none;padding:0;margin:0;display:grid;gap:.8rem;counter-reset:s}
ol.steps li{counter-increment:s;position:relative;padding-left:2.4rem;min-height:1.8rem}
ol.steps li::before{content:counter(s);position:absolute;left:0;top:-.35rem;width:1.8rem;text-align:center;
  font:500 1.7rem/1 var(--display);color:var(--thread)}
.note{background:var(--bg2);border:1px solid var(--line);border-radius:var(--r-sm);padding:.8rem 1rem;font-size:.95rem;color:var(--muted)}
.reading{border-color:color-mix(in srgb,var(--gold) 45%,var(--line))}

/* ── certificates ── */
.certs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;margin:0 0 1rem}
@media (max-width:340px){.certs{grid-template-columns:1fr}}
.cert{margin:0;display:flex;flex-direction:column;gap:.5rem;min-width:0}
.cert-frame{display:block;width:100%;aspect-ratio:4/3;padding:0;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--bg2);overflow:hidden;cursor:zoom-in;position:relative}
.cert-frame img{width:100%;height:100%;object-fit:contain;display:block}
.cert-frame:hover{border-color:var(--gold)}
.cert figcaption{font-size:.92rem;line-height:1.4}
.cert figcaption b{display:block;font-family:var(--display);font-size:1.15rem;font-weight:600}
.cert figcaption span{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
/* no photo yet: a typeset certificate card instead of a broken image */
.cert-blank{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;
  padding:.5rem;line-height:1.2;text-align:center;color:var(--muted);cursor:default;
  background:radial-gradient(ellipse at center,var(--glow-b),transparent 70%)}
.cert-blank .seal{font-size:1.1rem;line-height:1;color:var(--gold);opacity:.8}
.cert-blank .cb-name{font-family:var(--display);font-size:clamp(.9rem,3.6vw,1.1rem);color:var(--ink);line-height:1.2}
.cert-blank .cb-meta{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase}
.cert.missing .cert-frame{cursor:default}
.cert.missing .cert-frame:hover{border-color:var(--line)}
/* photos with the teachers: portrait frames, enlarged with the same lightbox as the certificates */
.cert.photo .cert-frame{aspect-ratio:3/4}
.cert.photo .cert-frame img{object-fit:cover}
/* session time-lapses: portrait, tap to play */
.clips{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;margin:0 0 1rem}
@media (max-width:340px){.clips{grid-template-columns:1fr}}
.clip{margin:0;min-width:0}
.clip video{display:block;width:100%;aspect-ratio:9/16;object-fit:cover;background:var(--bg2);border:1px solid var(--line);border-radius:var(--r-sm)}
dialog.lightbox{max-width:min(96vw,60rem);max-height:92vh;padding:0;border:1px solid var(--line);border-radius:var(--r);
  background:var(--panel);color:var(--ink)}
dialog.lightbox::backdrop{background:rgba(5,5,10,.82)}
dialog.lightbox img{display:block;max-width:100%;max-height:calc(92vh - 3.5rem);margin:0 auto;object-fit:contain}
dialog.lightbox .lb-bar{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.5rem .8rem;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
dialog.lightbox button{background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r-pill);
  padding:.35rem .9rem;font:inherit;cursor:pointer;min-height:36px}

/* ── contact ── */
.contacts{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.6rem}
.contacts a,.contacts button{display:block;text-align:center;padding:.8rem;border-radius:var(--r-sm);min-height:48px;min-width:0;
  border:1px solid var(--line);background:var(--bg2);color:var(--ink);text-decoration:none;
  font:500 .95rem/1.4 var(--serif);cursor:pointer;overflow-wrap:break-word}
.contacts a:hover,.contacts button:hover{border-color:var(--gold);color:var(--gold)}
.contacts button.copied::after{content:" ✓ copied";color:var(--ok)}
.contacts .cl{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--muted)}
.contacts .cl:empty{display:none}

.topbar{display:flex;align-items:center;gap:1rem;padding-top:.9rem}
.topbar .back{margin-top:0}
.themebtn{margin-left:auto;background:none;border:0;padding:0;width:40px;height:40px;display:inline-flex;align-items:center;
  justify-content:center;cursor:pointer;opacity:.7;color:var(--ink);border-radius:50%}
.themebtn svg{display:block;width:18px;height:18px}
.themebtn:hover{opacity:1;color:var(--gold)}
footer{text-align:center;color:var(--muted);font-size:.85rem;padding-block:1.6rem 3rem}
footer .seal{display:block;font-size:1.1rem;opacity:.7;margin-bottom:.4rem}
.back{display:inline-block;margin-top:1.2rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);text-decoration:none}
.back:hover{color:var(--gold)}

/* ── forms (Thunder & Lightning app panels + pill toggles) ── */
form .field{margin:0 0 1.1rem}
label,.legend{display:block;font-weight:600;margin:0 0 .35rem}
legend.legend{padding:0}
.hint{display:block;font-weight:400;color:var(--muted);font-size:.88rem;margin-top:.1rem}
input[type=text],input[type=date],input[type=time],input[type=email],select,textarea{
  width:100%;font:400 16px/1.4 var(--serif);color:var(--ink);background:var(--bg2);border:1px solid var(--field-line);
  border-radius:var(--r-sm);padding:.7rem .75rem;accent-color:var(--gold);transition:border-color .15s}
input[type=text]:focus,input[type=date]:focus,input[type=time]:focus,input[type=email]:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold)}
input:disabled{opacity:.45;cursor:not-allowed}
input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}
textarea{min-height:90px;resize:vertical}
fieldset{border:0;padding:0;margin:0 0 1.1rem;min-width:0}
.choices{display:flex;flex-wrap:wrap;gap:.45rem}
.choices label{font-weight:400;display:inline-flex;align-items:center;gap:.4rem;margin:0;padding:.4rem .85rem;
  border:1px solid var(--line);border-radius:var(--r-pill);background:var(--bg2);cursor:pointer;font-size:.95rem;
  transition:background .15s,border-color .15s,color .15s}
.choices label:has(input:checked){background:var(--sel);border-color:var(--gold);color:var(--gold)}
.choices input{accent-color:var(--gold);margin:0}
.choices label:has(input:focus-visible),.check:has(input:focus-visible){outline:2px solid var(--gold);outline-offset:2px;border-radius:var(--r-pill)}
.check:has(input:focus-visible){border-radius:6px}
.check{display:flex;gap:.6rem;align-items:flex-start;font-weight:400}
.check input{margin-top:.3rem;accent-color:var(--gold);flex:none;width:18px;height:18px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;align-items:end}
.row2 > *{min-width:0}
@media (max-width:520px){.row2{grid-template-columns:1fr}}
.hp{display:none}
.req{color:var(--thread)}
form .btns{margin-top:.4rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ── reviews ── */
.reviews{display:grid;gap:.8rem}
.reviews > *{min-width:0}
blockquote.review{margin:0;padding:.9rem 1rem;border-left:2px solid var(--gold);background:var(--bg2);border-radius:0 var(--r-sm) var(--r-sm) 0}
blockquote.review p{margin:0 0 .4rem;font-style:italic;overflow-wrap:anywhere}
blockquote.review cite{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-style:normal;overflow-wrap:anywhere}