:root{color-scheme:light;
--amber:#3D8C43;--amber-deep:#2E6F34;--cream:#F7FAF5;--ink:#22301F;--ink-soft:#57654F;
--leaf:#2E6F34;--line:#DCE8D8;--white:#FFFFFF}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans Thai','Noto Sans SC',-apple-system,'Segoe UI',sans-serif;
background:var(--cream);color:var(--ink);line-height:1.7;font-size:16px}
h1,h2,h3{font-weight:700;line-height:1.3}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
/* top bar */
.topbar{background:var(--amber-deep);color:#FFFFFF;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:6px 20px;gap:12px;flex-wrap:wrap}
.topbar a{color:#fff;font-weight:600}
/* header */
header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
header .wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;gap:16px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:.06em;color:var(--amber-deep)}
.logo img{height:44px;width:auto}
nav{display:flex;gap:22px;flex-wrap:wrap}
nav a{font-weight:600;font-size:15px;color:var(--ink-soft);padding:4px 0;border-bottom:2px solid transparent}
nav a:hover,nav a.on{color:var(--amber);border-bottom-color:var(--amber)}
.langs{display:flex;gap:4px;border:1px solid var(--line);border-radius:20px;padding:3px}
.langs a{font-size:13px;font-weight:600;padding:3px 10px;border-radius:14px;color:var(--ink-soft)}
.langs a.on{background:var(--amber);color:#fff}
/* hero */
.hero{background:linear-gradient(rgba(20,40,22,.55),rgba(20,40,22,.55)),url("../assets/img/hero.jpg") center/cover no-repeat;
border-bottom:1px solid var(--line);overflow:hidden;position:relative;color:#fff}
.hero .wrap{padding:80px 20px 86px;position:relative}
.hero h1{color:#fff}
.hero p{color:#EAF2E8}
.hero.plain{background:linear-gradient(160deg,#EDF6EA 0%,#DCEED9 100%);color:var(--ink)}
.hero.plain h1{color:var(--ink)}
.hero.plain p{color:var(--ink-soft)}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
color:#fff;background:rgba(82,170,88,.85);padding:5px 14px;border-radius:16px;margin-bottom:18px}
.hero h1{font-size:clamp(28px,4.6vw,46px);max-width:720px}
.hero p{margin:18px 0 30px;max-width:640px;font-size:17px}
.btn{display:inline-block;background:var(--amber);color:#fff;font-weight:700;padding:13px 30px;
border-radius:8px;box-shadow:0 4px 14px rgba(59,138,65,.30);transition:transform .15s,background .15s}
.btn:hover{background:var(--amber-deep);transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--amber-deep);border:2px solid var(--amber);box-shadow:none;margin-left:12px}
.hero:not(.plain) .btn.ghost{color:#fff;border-color:#fff}
.hero:not(.plain) .btn.ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
/* sections */
section{padding:58px 0}
section.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:34px;max-width:680px}
.sec-head h2{font-size:clamp(22px,3vw,30px);color:var(--ink)}
.sec-head p{color:var(--ink-soft);margin-top:8px}
.grid{display:grid;gap:22px}
.grid.c4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid.c3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid.c2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:24px;
transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 8px 24px rgba(43,32,24,.08);transform:translateY(-3px)}
.card h3{font-size:17px;margin-bottom:8px;color:var(--amber-deep)}
.card img{width:100%;height:190px;object-fit:cover;border-radius:8px;margin-bottom:14px}
.card p{font-size:14.5px;color:var(--ink-soft)}
.card .step-n{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--leaf);
color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}
.card.linked{display:flex;flex-direction:column}
.card.linked .more{margin-top:auto;padding-top:12px;font-weight:700;font-size:14px;color:var(--amber)}
.card.linked:hover .more{text-decoration:underline}
/* story blocks: who/what/different/proof */
.story{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:34px 0}
.story.rev .story-img{order:2}
.story.rev .story-txt{order:1}
@media(max-width:760px){.story{grid-template-columns:1fr;gap:22px}.story.rev .story-img{order:0}.story.rev .story-txt{order:1}}
.story-img img{width:100%;border-radius:14px;border:1px solid var(--line);box-shadow:0 10px 28px rgba(34,48,31,.10);display:block}
.story-txt .eyebrow{margin-bottom:12px}
.story-txt h2{font-size:clamp(20px,2.6vw,27px);margin-bottom:12px;color:var(--ink)}
.story-txt p{color:var(--ink-soft);font-size:15.5px}
.story-txt .btn{margin-top:18px}
/* detail page */
.detail-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
@media(max-width:760px){.detail-hero{grid-template-columns:1fr}}
.detail-hero img{width:100%;border-radius:14px;border:1px solid var(--line);box-shadow:0 10px 30px rgba(34,48,31,.10)}
.crumbs{font-size:13.5px;color:var(--ink-soft);margin-bottom:16px}
.crumbs a{color:var(--amber-deep);font-weight:600}
.spec-table{width:100%;border-collapse:collapse;background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.spec-table th,.spec-table td{padding:13px 18px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-table th{width:32%;color:var(--amber-deep);font-weight:700;background:#F0F7EF;vertical-align:top}
.spec-table td{color:var(--ink-soft)}
/* flagship sampling package */
.pack{background:var(--white);border:2px solid var(--amber);border-radius:16px;padding:38px 34px;
box-shadow:0 14px 40px rgba(46,111,52,.10)}
.pack-head{max-width:720px}
.pack-head h2{font-size:clamp(22px,3vw,30px);color:var(--amber-deep);margin:10px 0 14px}
.pack-head p{color:var(--ink-soft);margin-bottom:12px}
.pack-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin:26px 0 8px}
.pack-item{background:#F0F7EF;border:1px solid var(--line);border-radius:12px;padding:18px}
.pack-item b{display:block;color:var(--amber-deep);font-size:14px;margin-bottom:6px}
.pack-item span{font-size:14.5px;color:var(--ink)}
.pack-cta{margin-top:18px}
/* brand studio */
.studio-step{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:28px;margin-bottom:22px}
.studio-step h2{color:var(--amber-deep);font-size:20px;margin-bottom:16px}
.studio-step .q{font-weight:700;font-size:14.5px;margin:14px 0 8px;color:var(--ink)}
.opts{display:flex;flex-wrap:wrap;gap:10px}
.opt{display:inline-flex;align-items:center;gap:7px;border:1.5px solid var(--line);border-radius:22px;
padding:8px 16px;font-size:14px;cursor:pointer;background:#fff;transition:border-color .15s,background .15s}
.opt:hover{border-color:var(--amber)}
.opt input{accent-color:var(--amber);margin:0}
.opt:has(input:checked){border-color:var(--amber);background:#F0F7EF;font-weight:600}
.file-label{display:block;font-size:14px;color:var(--ink-soft);margin-top:6px}
.file-label input{margin-top:6px}
#proposal{font-size:14.5px;line-height:1.6}
/* mockup grid */
.mock-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:18px}
.mock-grid figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;text-align:center}
.mock-grid canvas{width:100%;height:auto;border-radius:8px;background:#F7FAF5}
.mock-grid figcaption{font-size:13px;color:var(--ink-soft);margin-top:8px;font-weight:600}
.mock-grid .dl{color:var(--amber-deep);text-decoration:underline;cursor:pointer}
/* facts strip — GEO-friendly clear facts */
.facts{background:var(--leaf);color:#F2F7F1}
.facts .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:20px;padding:40px 20px}
.facts b{display:block;font-size:26px;color:#fff}
.facts span{font-size:13.5px;opacity:.9}
/* FAQ */
details{background:var(--white);border:1px solid var(--line);border-radius:10px;margin-bottom:12px;padding:0}
details summary{cursor:pointer;font-weight:700;padding:16px 20px;list-style:none;position:relative}
details summary::after{content:"+";position:absolute;right:18px;color:var(--amber);font-size:20px}
details[open] summary::after{content:"–"}
details div{padding:0 20px 16px;color:var(--ink-soft);font-size:15px}
/* contact */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:36px}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr}}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){form .row{grid-template-columns:1fr}}
input,textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:8px;
font:inherit;background:var(--white);margin-bottom:14px;color:var(--ink)}
input:focus,textarea:focus{outline:2px solid var(--amber);border-color:transparent}
.note{font-size:12.5px;color:var(--ink-soft);margin-top:8px}
.info-card{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:26px}
.info-card h3{color:var(--amber-deep);margin-bottom:14px}
.info-card p{font-size:15px;color:var(--ink-soft);margin-bottom:12px}
.info-card b{color:var(--ink)}
/* footer */
footer{background:#1F3320;color:#B9CCB6;font-size:14px;margin-top:40px}
footer .wrap{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:34px;padding:48px 20px 30px}
@media(max-width:760px){footer .wrap{grid-template-columns:1fr}}
footer h4{color:#fff;font-size:15px;margin-bottom:14px}
footer a{display:block;margin-bottom:8px}
footer a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);text-align:center;padding:16px;font-size:12.5px;color:#7F947C}
/* prose */
.prose p{margin-bottom:16px;max-width:760px;color:var(--ink-soft)}
.prose h2{margin:30px 0 12px;color:var(--ink)}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}html{scroll-behavior:auto}}