/* Solo Scale — production stylesheet
   Design system: SoloScale_DesignSystem_FIXED (locked 2026-07-14)
   Tokens: electric blue accent, ink neutrals, one dark proof band, Sora/IBM Plex Sans/Fraunces/JetBrains Mono trio. */

:root{
  --bg:#ffffff; --ink:#111726; --muted:#4b5162; --dim:#6d7385; --border:#e6e8f0; --surface:#f6f7fb; --tint:#eaf4fc;
  --accent:#0871ea; --accent-hover:#0663d0; --amber:#d98a1f; --amber-text:#9a5b00; --callout:#fff8ef;
  --dark-bg:#0d1017; --dark-text:#eef1f7; --dark-text-dim:rgba(238,241,247,0.66); --dark-border:rgba(238,241,247,0.14);
  --danger:#c0392b; --success-bg:#e7f6ef; --success:#157f52;
  --radius:12px; --radius-sm:9px; --radius-pill:999px;
  --font-display:'Sora','IBM Plex Sans Thai',sans-serif;
  --font-body:'IBM Plex Sans','IBM Plex Sans Thai',sans-serif;
  --font-quote:'Fraunces','Noto Serif Thai',serif;
  --font-mono:'JetBrains Mono',monospace;
  --wrap:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hover)}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
@media(max-width:640px){.wrap{padding:0 20px}}
[lang-th]{display:none}
html[data-lang="th"] [lang-en]{display:none}
html[data-lang="th"] [lang-th]{display:inline}
html[data-lang="th"] [lang-th].block{display:block}
html[data-lang="th"] [lang-th].flex{display:flex}
[lang-th].block{display:none}
[lang-en].block{display:block}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(255,255,255,0.85);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:28px;padding:13px 32px}
.logo-link{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{height:24px;width:auto;display:block}
.logo-word{font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:-0.03em;color:var(--ink);line-height:1;white-space:nowrap}
.main-nav{display:flex;gap:24px;margin-left:auto;font-size:15px;font-weight:500;align-items:center}
.main-nav a{color:var(--ink);padding:4px 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.main-nav a:hover{color:var(--accent)}
.main-nav a.active{color:var(--accent);border-color:var(--accent)}
.lang-toggle{display:flex;align-items:center;border:1px solid var(--border);border-radius:var(--radius-pill);overflow:hidden;font-size:13px;font-weight:600}
.lang-toggle button{border:none;cursor:pointer;padding:6px 12px;background:#fff;color:var(--muted);font-family:inherit;font-size:13px;font-weight:600;transition:background .15s,color .15s}
.lang-toggle button.on{background:var(--accent);color:#fff}
.nav-cta{background:var(--accent);color:#fff!important;font-weight:600;font-size:15px;padding:9px 18px;border-radius:8px;white-space:nowrap;transition:background .15s}
.nav-cta:hover{background:var(--accent-hover);color:#fff!important}
.nav-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--ink);margin-left:auto}
@media(max-width:900px){
  .header-inner{padding:13px 20px}
  .main-nav{position:fixed;inset:60px 0 auto 0;flex-direction:column;background:#fff;border-bottom:1px solid var(--border);padding:20px;gap:16px;align-items:flex-start;display:none;margin-left:0;box-shadow:0 12px 24px rgba(17,23,38,.08)}
  .main-nav.open{display:flex}
  .nav-toggle{display:block}
}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:16px;padding:13px 24px;border-radius:var(--radius-sm);cursor:pointer;font-family:inherit;border:none;transition:background .15s,transform .15s,border-color .15s,color .15s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);color:#fff}
.btn-secondary{background:#fff;color:var(--ink);border:1.5px solid var(--ink)}
.btn-secondary:hover{color:var(--accent);border-color:var(--accent)}
.btn-quiet{background:none;border:none;color:var(--accent);font-weight:600;font-size:15px;padding:0;cursor:pointer;font-family:inherit}

/* ---------- Type ---------- */
h1,h2,h3{font-family:var(--font-display);font-weight:700;letter-spacing:-0.03em;line-height:1.08;margin:0}
html[data-lang="th"] h1,html[data-lang="th"] h2,html[data-lang="th"] h3{font-weight:600}
.eyebrow{display:flex;align-items:baseline;gap:12px;font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.eyebrow .n{color:var(--accent);font-weight:600}
.eyebrow .l{color:var(--dim)}
.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);background:#fff;border-radius:999px;padding:6px 14px;font-size:13px;font-weight:500;color:var(--muted)}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}

/* ---------- Sections ---------- */
section{padding:0}
.section-pad{padding:88px 0}
@media(max-width:640px){.section-pad{padding:56px 0}}
.hero-pad{padding:88px 0 36px}
@media(max-width:640px){.hero-pad{padding:56px 0 28px}}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(900px 500px at 8% -10%,#e4efff 0%,rgba(228,239,255,0) 60%),radial-gradient(700px 420px at 96% 0%,#fff0e0 0%,rgba(255,240,224,0) 55%),#fff}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.hero h1{font-size:clamp(32px,4.8vw,60px);max-width:14ch}
.hero-sub{font-size:20px;color:var(--muted);margin-top:24px;max-width:52ch}
.hero-ctas{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-cards{display:flex;flex-direction:column;gap:16px}
.result-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;display:flex;align-items:center;gap:20px;box-shadow:0 8px 28px rgba(17,23,38,.06)}
.result-card .rc-body{flex:1;display:flex;flex-direction:column;gap:6px}
.result-card .rc-tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim)}
.result-card .rc-num{font-family:var(--font-mono);font-weight:600;font-size:34px;color:var(--accent)}
.result-card .rc-caption{font-size:13px;color:var(--muted)}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}

/* ---------- Stat / brand strip ---------- */
.brand-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface);padding:26px 0}
.brand-strip .inner{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.brand-strip .lbl{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);white-space:nowrap}
.brand-row{display:flex;gap:16px;flex:1;flex-wrap:wrap}
.brand-chip{flex:1;min-width:90px;height:40px;border:1px dashed var(--border);border-radius:6px;background:repeating-linear-gradient(45deg,var(--border) 0,var(--border) 6px,#fff 6px,#fff 12px);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:11px;color:var(--dim)}

/* ---------- Commitment / step / tile cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
@media(max-width:900px){.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr}}
.commit{display:flex;flex-direction:column;gap:14px;border-top:2px solid var(--border);padding-top:22px}
.commit .ic{width:40px;height:40px;border-radius:10px;background:var(--tint);display:flex;align-items:center;justify-content:center}
.commit h3{font-size:20px}
.commit p{margin:0;font-size:16px;color:var(--muted)}

.tile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.tile-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.tile-grid{grid-template-columns:1fr}}
.tile{border:1px solid var(--border);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:14px;background:#fff;transition:border-color .15s}
.tile:hover{border-color:var(--accent)}
.tile .ic{width:40px;height:40px;border-radius:10px;background:var(--tint);display:flex;align-items:center;justify-content:center}
.tile h3{font-size:20px}
.tile p{margin:0;font-size:15px;color:var(--muted);flex:1}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.tag{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);border:1px solid var(--border);border-radius:999px;padding:4px 10px}

.step-card{border:1px solid var(--border);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;gap:16px}
.step-card .num{font-family:var(--font-mono);font-weight:600;font-size:15px;color:var(--accent)}
.step-card h3{font-size:22px}
.step-card p{margin:0;font-size:15px;color:var(--muted)}
.step-card .meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);margin-top:auto}

/* ---------- Callout with logo mark ---------- */
.callout{background:var(--surface);border-top:1px solid var(--border);padding:56px 0}
.callout-inner{display:flex;gap:32px;align-items:flex-start}
.callout-inner img{width:18px;height:auto;flex:none;margin-top:4px}
.callout h3{font-size:22px;margin-bottom:8px}
.callout p{margin:0;font-size:16px;color:var(--muted);max-width:70ch;line-height:1.6}
@media(max-width:640px){.callout-inner{flex-direction:column;gap:16px}}

/* ---------- Work rows ---------- */
.filter-row{display:flex;gap:8px;flex-wrap:wrap}
.chip{cursor:pointer;font-family:inherit;font-size:14px;font-weight:500;padding:7px 15px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--muted);transition:all .15s}
.chip.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.chip:hover:not(.on){border-color:var(--dim)}
.row-list{display:flex;flex-direction:column}
.wrow{border-top:1px solid var(--border)}
.wrow-main{all:unset;box-sizing:border-box;cursor:pointer;width:100%;display:grid;grid-template-columns:180px 1fr auto auto;gap:24px;align-items:center;padding:22px 8px}
.wrow-main .metric{font-family:var(--font-mono);font-weight:600;font-size:26px;color:var(--accent)}
.wrow-main .desc{font-size:16px;color:var(--ink)}
.wrow-main .tagline{font-family:var(--font-mono);font-size:12px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase}
.wrow-main .chev{color:var(--dim);font-size:18px;transition:transform .2s}
.wrow.open .chev{transform:rotate(180deg)}
.wrow-detail{display:none;padding:0 8px 26px 8px;flex-direction:column;gap:16px}
.wrow.open .wrow-detail{display:flex}
.wrow-detail .subs{display:flex;gap:40px;flex-wrap:wrap}
.wrow-detail .sub .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);display:block}
.wrow-detail .sub .v{font-family:var(--font-mono);font-weight:500;font-size:18px;color:var(--ink)}
.wrow-detail p{margin:0;font-size:15px;color:var(--muted);max-width:70ch}
.disclosure{border-top:1px solid var(--border);padding:16px 8px 0 8px;font-size:13px;color:var(--dim)}
@media(max-width:640px){.wrow-main{grid-template-columns:1fr auto;grid-template-areas:"metric chev" "desc desc" "tagline tagline";row-gap:6px}.wrow-main .metric{grid-area:metric}.wrow-main .chev{grid-area:chev}.wrow-main .desc{grid-area:desc}.wrow-main .tagline{grid-area:tagline}}

/* ---------- Dark proof band ---------- */
.dark-band{background:var(--dark-bg)}
.dark-band h2{color:var(--dark-text)}
.dark-band .eyebrow .l{color:var(--dim)}
.receipts{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
@media(max-width:900px){.receipts{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.receipts{grid-template-columns:1fr}}
.receipt{display:flex;flex-direction:column;gap:10px;border-top:2px solid var(--dark-border);padding-top:20px}
.receipt .num{font-family:var(--font-mono);font-weight:600;font-size:40px;color:var(--dark-text)}
.receipt .num.amber{color:var(--amber)}
.receipt .cap{font-size:14px;color:var(--dark-text-dim);line-height:1.5}

/* ---------- Quote ---------- */
.quote-block{display:flex;gap:36px;align-items:flex-start;max-width:980px;margin:0 auto;padding:96px 32px}
.quote-block img{width:26px;height:auto;flex:none;margin-top:10px}
.quote-block blockquote{margin:0;font-family:var(--font-quote);font-style:italic;font-weight:400;font-size:clamp(24px,3vw,32px);line-height:1.35;color:var(--ink)}
.quote-attrib{display:flex;align-items:center;gap:16px;margin-top:24px}
.quote-attrib .avatar{width:56px;height:56px;border-radius:50%;flex:none;border:1px solid var(--border);background:radial-gradient(120% 120% at 30% 20%,#e4efff 0%,#f6f7fb 70%);display:flex;align-items:center;justify-content:center;overflow:hidden}
.quote-attrib .avatar img{width:28px;height:auto}
.portrait-ph{width:340px;height:400px;max-width:100%;border-radius:16px;background:radial-gradient(120% 120% at 30% 18%,#e4efff 0%,#f6f7fb 55%,#ffffff 100%);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.portrait-ph img{width:120px;height:auto;opacity:.92}
.quote-attrib .name{font-weight:600;font-size:15px}
.quote-attrib .role{font-size:13px;color:var(--dim)}
@media(max-width:640px){.quote-block{padding:56px 20px;gap:20px}}

/* ---------- Market cards ---------- */
.market-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:8px;color:var(--ink)}
.market-card:hover{border-color:var(--accent)}
.market-card h3{font-size:20px}
.market-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.5}
.market-full{padding:32px}
.market-full .mhead{display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.market-full h3{font-size:26px}
.market-full .tz{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.market-full p{font-size:15px;color:var(--muted);margin:14px 0}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.qa{border-top:1px solid var(--border)}
.qa button{all:unset;box-sizing:border-box;cursor:pointer;width:100%;display:flex;justify-content:space-between;gap:20px;padding:20px 4px;font-family:var(--font-display);font-weight:600;font-size:18px;color:var(--ink)}
html[data-lang="th"] .qa button{font-weight:600}
.qa .sign{color:var(--accent)}
.qa .a{display:none;margin:0;padding:0 4px 22px 4px;font-size:16px;line-height:1.6;color:var(--muted);max-width:62ch}
.qa.open .a{display:block}

/* ---------- Contact CTA banner ---------- */
.cta-band{border-top:1px solid var(--border);text-align:center}
.cta-band h2{font-size:clamp(28px,3.6vw,44px);max-width:22ch;margin:0 auto}
.cta-band p{font-size:18px;color:var(--muted);margin:18px auto 0}

/* ---------- Contact page ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:40px}}
.contact-info{display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.contact-info img{width:24px}
.contact-links{display:flex;gap:20px;align-items:center;font-size:16px;font-weight:500;flex-wrap:wrap}
.contact-note{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim)}
.form-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:36px;box-shadow:0 8px 28px rgba(17,23,38,.06)}
.form-card h2{font-size:22px;margin-bottom:18px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--muted)}
.field input,.field select,.field textarea{padding:12px 14px;border:1.5px solid var(--border);border-radius:8px;font-family:inherit;font-size:15px;color:var(--ink);outline:none;background:#fff;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(8,113,234,.15)}
.field.error input,.field.error textarea{border-color:var(--danger)}
.field .err{font-size:12px;color:var(--danger);font-weight:500;display:none}
.field.error .err{display:block}
.form-success{display:none;flex-direction:column;gap:16px;align-items:center;text-align:center;padding:24px 0}
.form-success.show{display:flex}
.form-card.submitted .field-set{display:none}
.form-success .check{width:44px;height:44px;border-radius:50%;background:var(--success-bg);color:var(--success);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700}
.form-success h2{font-size:24px}
.form-success p{margin:0;font-size:15px;color:var(--muted);max-width:36ch}

/* ---------- Legal pages ---------- */
.legal{max-width:760px;margin:0 auto;padding:80px 32px 96px}
.legal-head{display:flex;flex-direction:column;gap:14px;align-items:flex-start;margin-bottom:32px}
.legal-head img{width:16px}
.legal-head h1{font-size:clamp(30px,4vw,40px)}
.legal-updated{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim)}
.legal-placeholder{border:1px dashed var(--amber);border-radius:8px;padding:12px 16px;font-size:14px;color:var(--muted);background:var(--callout)}
.legal-section{border-top:1px solid var(--border);padding-top:22px;display:flex;flex-direction:column;gap:8px}
.legal-section h2{font-size:20px}
.legal-section p{margin:0;font-size:15px;color:var(--muted);line-height:1.7}
@media(max-width:640px){.legal{padding:56px 20px 64px}}

/* ---------- Simple centered pages (thank you / 404) ---------- */
.center-page{background:radial-gradient(900px 500px at 50% -20%,#e4efff 0%,rgba(228,239,255,0) 60%),#fff}
.center-page .inner{max-width:680px;margin:0 auto;padding:96px 32px;display:flex;flex-direction:column;gap:24px;align-items:center;text-align:center}
.center-page .code{font-family:var(--font-mono);font-weight:600;font-size:80px;line-height:1;color:var(--accent)}
.center-page img{width:28px}
.center-page h1{font-size:clamp(28px,4vw,44px)}
.center-page p{font-size:18px;color:var(--muted);max-width:44ch;margin:0}
.center-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}

/* ---------- Footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--border)}
.footer-grid{padding:56px 0 32px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:32px}}
.footer-brand{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.footer-brand .logo-mark{height:26px}
.footer-brand .logo-word{font-size:21px}
.footer-brand p{margin:0;color:var(--muted);font-size:15px;max-width:38ch}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col .lbl{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--dim);text-transform:uppercase}
.footer-col .items{display:flex;flex-direction:column;gap:6px;font-size:15px;color:var(--muted)}
.footer-col a{color:var(--ink)}
.footer-bottom{padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--border);font-size:13px;color:var(--dim)}
.footer-legal{display:flex;gap:10px}

/* ---------- Divider ---------- */
.divider{height:1px;background:var(--border)}

/* ---------- Section label micro-grid alignment helper ---------- */
.stack{display:flex;flex-direction:column}
.gap-12{gap:12px}