/* A2CD web demo — keeps the dark identity of the previous live page */
:root{
  --bg:#0a0e14; --panel:#121822; --card:#0f141c; --line:#1f2a37; --txt:#e6edf3;
  --muted:#8b98a9; --muted2:#a3afbf; --accent:#76b900; --accent-hi:#8fd400; --paper:#fff;
  --radius:12px;
  --font:'Segoe UI',system-ui,-apple-system,'Helvetica Neue',Arial,'Noto Sans Thai',sans-serif;
  --header-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--txt);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
html[lang="th"] body{font-family:'Noto Sans Thai','Segoe UI',system-ui,-apple-system,sans-serif;line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent-hi);outline-offset:3px;border-radius:4px}
.muted{color:var(--muted2)}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:12px;top:-60px;background:var(--accent);color:#0a0e14;padding:8px 14px;border-radius:8px;font-weight:700;z-index:100}
.skip:focus{top:12px}

/* header */
.site-header{position:sticky;top:0;background:rgba(10,14,20,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:30}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:var(--header-h);padding:0 24px;max-width:1160px;margin:0 auto}
.brand{font-weight:700;font-size:20px;letter-spacing:.5px;white-space:nowrap}
.brand .dot{color:var(--accent)}
.brand .by{color:var(--muted);font-weight:400;font-size:13px;letter-spacing:0}
.nav-links{display:flex;gap:22px}
.nav-links a{color:var(--muted2);font-size:14px;transition:color .2s}
.nav-links a:hover{color:var(--txt)}
.nav-tools{display:flex;align-items:center;gap:12px}
.lang{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-btn{background:none;border:0;padding:6px 10px;font-size:13px;color:var(--muted2);cursor:pointer;min-width:44px;min-height:34px}
.lang-btn[aria-pressed="true"]{background:rgba(118,185,0,.16);color:var(--txt);font-weight:600}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:40px;height:38px;align-items:center;justify-content:center;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:8px;font-weight:600;font-size:15px;transition:transform .2s,border-color .2s,box-shadow .2s;border:1px solid transparent;cursor:pointer;text-align:center;line-height:1.3}
.btn-primary{background:linear-gradient(180deg,var(--accent-hi),var(--accent));color:#0a0e14;box-shadow:0 0 0 1px rgba(118,185,0,.45),0 10px 30px rgba(118,185,0,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(118,185,0,.8),0 14px 36px rgba(118,185,0,.45)}
.btn-ghost{border-color:var(--line);color:var(--txt);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--accent);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-xs{padding:5px 12px;font-size:13px}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(118,185,0,.12);border:1px solid rgba(118,185,0,.4);color:#9fdc2a;padding:6px 14px;border-radius:30px;font-size:13px;font-weight:600}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent)}
.eyebrow{color:#9fdc2a;font-size:13px;font-weight:600;letter-spacing:.8px;text-transform:uppercase;margin-bottom:6px}
.chip{display:inline-block;background:var(--panel);border:1px solid var(--line);padding:6px 12px;border-radius:6px;font-size:13px;color:var(--txt)}
.pill{background:var(--card);border:1px solid var(--line);color:var(--muted2);padding:8px 16px;border-radius:999px;font-size:14px;cursor:pointer;transition:border-color .2s,color .2s,background .2s;min-height:40px}
.pill:hover{color:var(--txt);border-color:#33455a}
.pill[aria-pressed="true"],.pill[aria-selected="true"]{background:rgba(118,185,0,.14);border-color:rgba(118,185,0,.6);color:var(--txt)}

/* sections */
section{padding:64px 0}
h2.sec{font-size:clamp(24px,3.4vw,32px);font-weight:800;letter-spacing:-.5px;line-height:1.2;margin-bottom:12px}
html[lang="th"] h2.sec{letter-spacing:0}
.sub{color:var(--muted2);margin-bottom:32px;font-size:16px;max-width:720px}
h3{font-size:17px;line-height:1.35;margin-bottom:8px}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding:72px 0 56px}
.hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.1;font-weight:800;letter-spacing:-1px;margin:22px 0 18px}
html[lang="th"] .hero h1{line-height:1.3;letter-spacing:0}
.hero h1 .g{background:linear-gradient(90deg,var(--accent),#a5e635);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,1.9vw,19px);color:var(--muted2);max-width:620px;margin-bottom:30px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative;display:grid;grid-template-columns:1fr;padding-bottom:16%}
.hero-visual figure{margin:0}
.hv-model{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;width:88%;box-shadow:0 20px 50px rgba(0,0,0,.45)}
.hv-model img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.hero-visual figcaption{font-size:12px;color:var(--muted2);background:var(--panel);padding:7px 12px;border-top:1px solid var(--line)}
.hv-sheet{position:absolute;right:0;bottom:0;width:62%;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:0 24px 60px rgba(0,0,0,.6);animation:rise .9s .15s ease-out both}
.hv-sheet .paper{display:block;background:#fff;padding:6px}
.hv-sheet img{width:100%;height:auto}
.hv-arrow{position:absolute;left:44%;bottom:24%;width:40px;height:40px;color:var(--accent);background:var(--bg);border:1px solid var(--line);border-radius:50%;padding:7px;z-index:2}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* core */
.core{padding:28px 0 40px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.core h2.sec{font-size:15px;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:18px}
.core-grid{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.core-item{background:linear-gradient(180deg,#0f141c,#0c1118);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.core-item h3{font-size:15px;color:#9fdc2a;margin-bottom:6px}
.core-item p{font-size:14px;color:var(--muted2);line-height:1.55}
.ic{width:28px;height:28px;color:var(--accent);margin-bottom:12px;display:block}

/* compare slider */
.pair-tabs,.group-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.compare-fig{margin:0}
.compare{position:relative;aspect-ratio:3/2;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;user-select:none;-webkit-user-select:none;touch-action:pan-y;cursor:ew-resize;--pos:50%}
.cmp-layer{position:absolute;inset:0;background:#fff}
.cmp-layer img{width:100%;height:100%;object-fit:contain;pointer-events:none}
.cmp-before{clip-path:inset(0 calc(100% - var(--pos)) 0 0)}
.cmp-before img{object-fit:cover}
.cmp-tag{position:absolute;top:12px;background:rgba(10,14,20,.82);color:var(--txt);font-size:12px;font-weight:600;padding:5px 10px;border-radius:6px;pointer-events:none}
.cmp-tag-l{left:12px}.cmp-tag-r{right:12px}
.cmp-handle{position:absolute;top:0;bottom:0;left:var(--pos);width:44px;margin-left:-22px;display:flex;align-items:center;justify-content:center;cursor:ew-resize;touch-action:none}
.cmp-handle::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;margin-left:-1px;background:var(--accent);box-shadow:0 0 0 1px rgba(10,14,20,.35)}
.cmp-knob{position:relative;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#0a0e14;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,0,0,.4)}
.cmp-handle:focus-visible{outline:none}
.cmp-handle:focus-visible .cmp-knob{outline:3px solid #fff;outline-offset:2px}
.compare-cap{margin-top:12px;font-size:14px;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 8px}
.cmp-open{margin-left:auto;color:#9fdc2a;font-weight:600;text-decoration:underline;text-underline-offset:3px}

/* sample set */
.set-meta{display:flex;flex-wrap:wrap;gap:8px;margin:-12px 0 24px}
.grid-count{font-size:13px;margin:-6px 0 14px}
.sheet-grid{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.sheet[hidden]{display:none}
.sheet-link{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s,border-color .2s,box-shadow .2s;height:100%}
.sheet-link:hover{transform:translateY(-3px);border-color:rgba(118,185,0,.55);box-shadow:0 12px 30px rgba(0,0,0,.35)}
.sheet-link .paper{display:block;background:var(--paper);padding:8px;border-bottom:1px solid var(--line)}
.sheet-link img{width:100%;height:auto;aspect-ratio:600/425}
.sheet-meta{display:flex;flex-direction:column;gap:2px;padding:10px 14px 12px;font-size:12.5px;color:var(--muted2);line-height:1.4}
.sheet-meta b{color:var(--txt);font-size:14px;letter-spacing:.3px}
.hint{font-size:13px;margin-top:18px}

/* cards */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:border-color .2s,transform .2s}
.card:hover{border-color:rgba(118,185,0,.5);transform:translateY(-3px)}
.card p{color:var(--muted2);font-size:14.5px}
.render-fig{margin:28px auto 0;max-width:1024px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.render-fig img{width:100%;max-width:1024px;height:auto;margin:0 auto}
.render-fig figcaption{padding:12px 16px;color:var(--muted2);font-size:13.5px}

/* how */
.flow{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:none}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative}
.step .num{width:34px;height:34px;border-radius:50%;background:var(--accent);color:#0a0e14;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.step p{color:var(--muted2);font-size:14.5px}
.need{display:flex;align-items:center;gap:18px;margin-top:20px;background:rgba(118,185,0,.07);border:1px solid rgba(118,185,0,.3);border-radius:var(--radius);padding:18px 22px}
.need .ic{margin:0;flex:none}
.need div{flex:1}
.need h3{margin-bottom:2px}
.need p{color:var(--muted2);font-size:14.5px}

/* cm */
.cm-card{display:flex;align-items:center;justify-content:space-between;gap:28px;background:radial-gradient(120% 140% at 0 0,#131c12,#0f141c 60%);border:1px solid var(--line);border-radius:16px;padding:30px 32px}
.cm-card .muted{max-width:620px}

/* about */
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.badge-inline{margin-top:18px}
.founder{display:flex;gap:20px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px}
.avatar{flex:none;width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,#1c2a12,#0c1408);border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;color:#9fdc2a;letter-spacing:1px}
.founder-name{font-size:20px;margin-bottom:2px}
.founder .muted{margin-bottom:14px;font-size:14.5px}

/* contact */
.contact{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:40px}
.contact-intro .muted{margin-bottom:22px}
.email-box{display:flex;flex-direction:column;gap:6px;font-size:14.5px}
.email-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.email-row a{color:#9fdc2a;font-weight:600;word-break:break-all}
.copy-status{font-size:13px;color:#9fdc2a;min-height:1.2em}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full,.form-foot.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--txt)}
.field input,.field select,.field textarea{background:var(--bg);border:1px solid #2c3a4b;border-radius:8px;padding:11px 12px;font-size:15px;width:100%;min-height:44px}
.field textarea{resize:vertical}
.field input::placeholder{color:#6f7d8f}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(118,185,0,.25)}
.field [aria-invalid="true"]{border-color:#ff7b72}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.form-status{font-size:14px;color:var(--muted2)}
.form-status.err{color:#ff9b93}

/* faq */
.faq{max-width:820px;display:flex;flex-direction:column;gap:10px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:10px}
.faq summary{cursor:pointer;padding:16px 48px 16px 20px;font-weight:600;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);color:var(--accent);font-size:22px;font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 20px 18px;color:var(--muted2)}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:32px 0;color:var(--muted2);font-size:13.5px}
.foot{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px}
.foot a:hover{color:var(--txt)}

/* viewer */
body.v-open{overflow:hidden}
.viewer{position:fixed;inset:0;z-index:100;background:#06090d;display:flex;flex-direction:column}
.viewer[hidden]{display:none}
.v-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--bg);flex:none}
.v-info{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;min-width:0;font-size:14px}
.v-info b{font-size:16px;color:#9fdc2a}
.v-scale{color:var(--muted2);font-size:13px}
.v-tools{display:flex;align-items:center;gap:6px;flex:none}
.v-count{color:var(--muted2);font-size:13px;margin-right:6px}
.v-btn{background:var(--panel);border:1px solid var(--line);border-radius:8px;min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--txt)}
.v-btn:hover{border-color:var(--accent)}
.v-btn svg{width:20px;height:20px}
.v-zoom-level{font-size:13px;padding:0 8px;min-width:58px}
.v-canvas{position:relative;flex:1;overflow:hidden;touch-action:none;cursor:grab;background:#1a2230}
.v-canvas.dragging{cursor:grabbing}
.v-canvas img{position:absolute;left:0;top:0;transform-origin:0 0;background:#fff;box-shadow:0 10px 40px rgba(0,0,0,.5);user-select:none;-webkit-user-drag:none;max-width:none}
.v-loading{position:absolute;right:16px;bottom:16px;width:26px;height:26px;border:3px solid rgba(255,255,255,.2);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;display:none}
.v-loading.on{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.v-nav{position:absolute;top:50%;width:48px;height:64px;margin-top:-6px;background:rgba(10,14,20,.78);border:1px solid var(--line);color:var(--txt);border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:2}
.v-nav:hover{border-color:var(--accent)}
.v-nav svg{width:26px;height:26px}
.v-prev{left:12px}.v-next{right:12px}
.v-nav:disabled{opacity:.35;cursor:default}
.v-help{flex:none;text-align:center;font-size:12.5px;color:var(--muted2);padding:8px 12px;border-top:1px solid var(--line);background:var(--bg)}

/* responsive */
@media (max-width:1020px){
  .nav-links{gap:16px}
  .core-grid,.grid4{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:36px;padding:48px 0 40px}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 24px 16px}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .menu-btn{display:inline-flex}
  .two,.contact{grid-template-columns:1fr;gap:28px}
  .grid3,.flow{grid-template-columns:1fr}
  .cm-card{flex-direction:column;align-items:flex-start}
}
@media (max-width:620px){
  .wrap,.nav{padding-left:16px;padding-right:16px}
  .brand .by{display:none}
  .nav-cta{display:none}
  section{padding:48px 0}
  .core-grid,.grid4{grid-template-columns:1fr}
  .form{grid-template-columns:1fr}
  .contact{padding:24px 18px}
  .cta .btn{width:100%}
  .need{flex-direction:column;align-items:flex-start}
  .sheet-grid{grid-template-columns:1fr 1fr;gap:12px}
  .sheet-meta{padding:8px 10px 10px;font-size:11.5px}
  .sheet-meta b{font-size:13px}
  .sheet-link .paper{padding:4px}
  .compare{aspect-ratio:4/3}
  .v-help{display:none}
  .v-nav{top:auto;bottom:14px;margin-top:0;width:52px;height:48px}
  .v-count{display:none}
  .v-btn{min-width:40px;height:40px}
}
@media (max-width:380px){
  .v-zoom-level{display:none}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* packages (SaaS cards) */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;overflow:hidden;transition:border-color .2s,transform .2s}
.plan:hover{border-color:rgba(118,185,0,.5);transform:translateY(-3px)}
.plan.rec{border-color:rgba(118,185,0,.7);box-shadow:0 0 0 1px rgba(118,185,0,.25),0 18px 50px rgba(118,185,0,.12)}
.plan h3{font-size:22px;margin-bottom:2px}
.plan-tag{color:var(--muted2);font-size:14px;margin-bottom:16px}
.price{display:flex;align-items:baseline;gap:8px;margin:0}
.price .amt{font-size:30px;font-weight:800;letter-spacing:-.5px}
.price .per{color:var(--muted2);font-size:14px}
.price-note{color:var(--muted);font-size:12.5px;margin:6px 0 18px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.feat{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:11px;flex:1}
.feat li{position:relative;padding-left:26px;font-size:14.5px;color:var(--txt)}
.feat li::before{content:"";position:absolute;left:0;top:3px;width:16px;height:16px;border-radius:50%;background:rgba(118,185,0,.15);
  -webkit-mask:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M3.5 8.5l3 3 6-7' fill='none' stroke='%2376b900' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/></svg>");background-size:16px 16px;background-repeat:no-repeat}
.plan .btn{width:100%}
.ribbon{position:absolute;top:18px;right:-34px;transform:rotate(45deg);background:var(--accent);color:#0a0e14;font-size:11px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;padding:5px 40px}
@media (max-width:900px){.plans{grid-template-columns:1fr}.plan.rec{order:-1}}
.feat-quota{font-weight:700}
.plan h3{font-size:34px;letter-spacing:-.5px}
.need-top{margin:0 0 32px}