/* AI Training Bangkok. Locully brand sheet v2 tokens. One theme: paper, locked. */
:root{
  --navy:#14213D; --navy-2:#1B2B4F; --terra:#E26A2C; --ember:#C2521A; --paper:#FFFFFF;
  --slate:#4F5A75; --fog:#5E6980; --linen:#F8F6F3; --blush:#FDF1E9; --sand:#E7E2D9;
  --ink-on-navy:#FFFFFF; --dim-on-navy:#B9C0D1; --rule-on-navy:rgba(255,255,255,.16);
  --r:10px; --ease:cubic-bezier(.16,1,.3,1); --maxw:1200px;
  color-scheme:light;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--navy);font-family:'Google Sans',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
::selection{background:var(--blush);color:var(--navy)}
:focus-visible{outline:2px solid var(--terra);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
h1,h2,h3{font-weight:700;letter-spacing:-.03em;line-height:1.02;text-wrap:balance}
h1{font-size:clamp(36px,5vw,66px)}
h2{font-size:clamp(28px,3.4vw,44px)}
h3{font-size:clamp(24px,2.8vw,38px);letter-spacing:-.025em}
.lead{font-size:clamp(17px,1.5vw,21px);color:var(--slate);max-width:52ch;text-wrap:pretty}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;border-radius:var(--r);background:var(--ember);color:#fff;font-weight:600;border:0;cursor:pointer;white-space:nowrap;transition:background .2s var(--ease),transform .2s var(--ease)}
.btn:hover{background:#A9461A}
.btn:active{transform:translateY(1px)}
.btn.big{padding:17px 28px;font-size:18px}
.btn.ghost{background:transparent;border:1.5px solid var(--sand);color:var(--navy)}
.btn.ghost:hover{background:var(--linen)}

/* nav */
nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--sand)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px}
.brand{display:flex;align-items:baseline;gap:10px;white-space:nowrap;min-width:0}
.brand .name{font-weight:700;letter-spacing:-.02em;font-size:17px}
.brand .by{font-size:13px;color:var(--fog)}
.brand .by b{font-weight:700;color:var(--navy)}
nav .right{display:flex;gap:10px;align-items:center;flex:none}
.lang{display:inline-flex;border:1px solid var(--sand);border-radius:var(--r);overflow:hidden;font-size:13px;flex:none}
.lang a,.lang span{padding:7px 12px;color:var(--fog);display:block}
.lang a:hover{background:var(--linen);color:var(--navy)}
.lang .on{background:var(--navy);color:#fff}
nav .cta{padding:10px 16px;font-size:14px}
@media(max-width:600px){.brand .by{display:none}}
@media(max-width:440px){nav .cta{display:none}}

/* board: the three workshops, first thing on the page */
.board{background:var(--navy);color:var(--ink-on-navy);padding-block:40px 56px}
.board-line{font-size:clamp(17px,1.6vw,22px);color:var(--dim-on-navy);max-width:60ch;margin-bottom:26px}
.pk{display:grid;border-top:1px solid var(--rule-on-navy)}
.card{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr) 240px;gap:32px;align-items:start;padding:34px 0 34px 18px;border-bottom:1px solid var(--rule-on-navy);position:relative;transition:background .3s var(--ease)}
.card:hover{background:rgba(255,255,255,.035)}
.card .hook{color:var(--dim-on-navy);margin-top:12px;max-width:44ch;font-size:16px}
.card ul{list-style:none;display:grid;gap:10px;align-self:center;font-size:15.5px;color:#E6E9F0}
.card ul li{padding-left:22px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:.72em;width:12px;height:1.5px;background:var(--terra)}
.card .act{display:grid;gap:14px;justify-items:end;align-self:center}
.card .len{font-size:15px;color:var(--dim-on-navy);font-variant-numeric:tabular-nums}
.card .btn{width:100%;transition:background .35s var(--ease),transform .2s var(--ease)}
.card.on{background:rgba(226,106,44,.12)}
.card.on h3{color:#FFD9C4}
.card.on .btn{background:#fff;color:var(--navy)}
.card.on .btn:hover{background:var(--linen)}
.card.on .btn:hover{background:var(--linen)}
@media(max-width:980px){.card{grid-template-columns:minmax(0,1fr) 220px}.card ul{grid-column:1;}.card .act{grid-column:2;grid-row:1 / span 2}}
@media(max-width:700px){.card{grid-template-columns:1fr;gap:18px;padding:26px 0 26px 14px}.card .act{grid-column:1;grid-row:auto;justify-items:stretch;width:100%}.card ul{align-self:start}}

/* hero: the caption under the board */
.hero{padding-block:72px 64px;border-bottom:1px solid var(--sand)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:end}
.hero h1{max-width:19ch}
html[lang=th] .hero h1{max-width:17ch;font-size:clamp(34px,4.6vw,60px);line-height:1.12}
html[lang=th] h3{line-height:1.18}
html[lang=th] h2{line-height:1.15}
.hero h1 .o{color:var(--terra)}
.hero .side{display:grid;gap:22px;justify-items:start}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;gap:26px}.hero{padding-block:52px 48px}}

/* request */
section{padding-block:72px}
.book{background:var(--linen)}
.sec-head{display:grid;gap:10px;margin-bottom:30px}
.picker{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:18px}
.pane{background:#fff;border:1px solid var(--sand);border-radius:var(--r);padding:26px}
.step{font-weight:600;font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.step i{font-style:normal;display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--navy);color:#fff;font-size:12px;font-weight:600}
.step.spaced{margin-top:26px}
.picks{display:flex;gap:8px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--sand);border-radius:var(--r);padding:9px 14px;font-size:15px;font-weight:500;cursor:pointer;background:#fff;transition:border-color .15s,background .15s,color .15s}
.chip:hover{border-color:var(--fog)}
.chip.on{border-color:var(--terra);background:var(--blush);color:var(--navy)}
.chip .dot{display:none}
.bundle{display:none;font-size:15px;color:var(--ember);font-weight:600;margin-top:12px}
.bundle.show{display:block;animation:fadein .3s var(--ease)}
@keyframes fadein{from{opacity:.001;transform:translateY(-4px)}to{opacity:1;transform:none}}
.bundle small{color:var(--slate);font-weight:400;font-size:14px}

.cal{border:1px solid var(--sand);border-radius:var(--r);overflow:hidden}
.cal-head{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;background:var(--linen);border-bottom:1px solid var(--sand)}
.cal-head b{font-size:15px}
.cal-head .nav{display:flex;gap:6px}
.cal-head button{width:32px;height:32px;border-radius:8px;border:1px solid var(--sand);background:#fff;cursor:pointer;display:grid;place-items:center;transition:border-color .15s}
.cal-head button:hover{border-color:var(--navy)}
.cal-head button:disabled{opacity:.35;cursor:default}
.cal-head svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);padding:10px 10px 12px;gap:2px}
.dow{font-size:12px;color:var(--fog);text-align:center;padding:6px 0 8px;font-weight:600}
.day{position:relative;height:42px;display:grid;place-items:center;font-size:14px;font-variant-numeric:tabular-nums;cursor:pointer;user-select:none}
.day span{position:relative;z-index:1;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;transition:background .12s,color .12s}
.day:hover span{background:var(--linen)}
.day.past{color:var(--sand);cursor:default;pointer-events:none}
.day.out{color:transparent;pointer-events:none}
.day.we{color:var(--fog)}
.day.inr::before{content:"";position:absolute;inset:4px 0;background:var(--blush)}
.day.start::before{content:"";position:absolute;inset:4px 0 4px 50%;background:var(--blush)}
.day.end::before{content:"";position:absolute;inset:4px 50% 4px 0;background:var(--blush)}
.day.start.end::before{display:none}
.day.start span,.day.end span{background:var(--terra);color:#fff;font-weight:600}
.day.today span{box-shadow:inset 0 0 0 1.5px var(--sand)}
.cal-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;border-top:1px solid var(--sand);font-size:14px;color:var(--slate);flex-wrap:wrap}
.cal-foot b{color:var(--navy)}
.cal-foot button{background:none;border:0;color:var(--fog);cursor:pointer;font-size:14px;text-decoration:underline;text-underline-offset:3px}
.flex{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:14px;color:var(--slate)}
.flex input{accent-color:var(--terra);width:16px;height:16px}
.hint{font-size:14px;color:var(--fog);margin-top:10px}

.form{display:grid;gap:14px}
.form label{display:block;font-size:14px;color:var(--slate);margin-bottom:6px;font-weight:500}
input[type=text],input[type=tel],textarea{width:100%;border:1.5px solid var(--sand);border-radius:var(--r);padding:12px 14px;background:#fff;font-size:16px;outline:0;transition:border-color .15s}
input::placeholder,textarea::placeholder{color:#5E6980}
input:focus,textarea:focus{border-color:var(--navy)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hp{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
.sum{font-size:15px;color:var(--slate);border-top:1px solid var(--sand);padding-top:14px;line-height:1.45}
.sum b{color:var(--navy)}
.form .btn{width:100%;padding:16px}
.fine{font-size:13.5px;color:var(--fog);text-align:center}
.fine:empty{display:none}
#status:not(:empty){color:var(--ember);font-weight:600}
@media(max-width:900px){.picker{grid-template-columns:1fr}}
@media(max-width:520px){.two{grid-template-columns:1fr}}

/* proof and who teaches */
.strip{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:18px;align-items:start}
.ask{background:var(--navy);color:#fff;border-radius:var(--r);padding:26px;font-size:15px}
.ask .q{font-size:14px;color:var(--dim-on-navy);margin-bottom:8px}
.ask .prompt{font-size:clamp(19px,1.7vw,24px);font-weight:600;letter-spacing:-.015em;margin-bottom:18px;text-wrap:balance}
.ask .row{display:grid;grid-template-columns:84px 1fr;gap:12px;padding:14px 0;border-top:1px solid var(--rule-on-navy)}
.ask .d{font-size:13px;color:var(--dim-on-navy);padding-top:2px;line-height:1.35}
.ask .a{color:#E6E9F0}
.ask .foot{margin-top:12px;font-size:13px;color:var(--dim-on-navy)}
.teach{display:grid;gap:0;border-top:1px solid var(--sand)}
.person{display:grid;grid-template-columns:72px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--sand);align-items:center;transition:background .2s}
.person:hover b{color:var(--ember)}
.person .ph{width:72px;height:72px;border-radius:var(--r);background:var(--linen);display:grid;place-items:center;color:var(--fog);font-size:11px;letter-spacing:.06em}
.person b{font-size:19px;letter-spacing:-.02em;display:block;transition:color .15s}
.person .role{color:var(--ember);font-size:14px;font-weight:600;margin:2px 0 6px}
.person p{color:var(--slate);font-size:15px;max-width:60ch}
.receipts{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding-top:20px}
.receipt{font-size:15px;color:var(--slate)}
.receipt b{display:block;color:var(--navy);font-size:16px;margin-bottom:4px}
@media(max-width:900px){.strip{grid-template-columns:1fr}}
@media(max-width:520px){.receipts{grid-template-columns:1fr}}

/* faq */
section.tight{padding-top:0}
.faq{display:grid;border-top:1px solid var(--sand)}
.faq > div{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px;padding:22px 0;border-bottom:1px solid var(--sand)}
.faq b{font-size:18px;letter-spacing:-.015em}
.faq p{font-size:16px;color:var(--slate);max-width:64ch}
@media(max-width:760px){.faq > div{grid-template-columns:1fr;gap:6px}}

footer{background:var(--navy);color:var(--dim-on-navy);padding-block:30px;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
footer .wm{font-weight:700;font-size:20px;color:#fff;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
footer .wm small{font-weight:400;font-size:13px;color:var(--dim-on-navy)}
footer .links{display:flex;gap:22px;flex-wrap:wrap}
footer .links a:hover{color:#fff}

/* one authored moment: the board rows arrive, then nothing moves unless you act */
@media(prefers-reduced-motion:no-preference){
  .card{animation:rise .7s var(--ease) both}
  .card:nth-child(2){animation-delay:.08s}
  .card:nth-child(3){animation-delay:.16s}
  @keyframes rise{from{opacity:.001;transform:translateY(14px)}to{opacity:1;transform:none}}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}