/* Pancham Plasto Chem - main stylesheet. Colours and sizes are set in :root at the top. */
:root{--bg:#fff;--soft:#f5f7f8;--ink:#0f2a33;--muted:#58707a;--line:#e3e8ea;--teal:#1f5f6b;--accent:#d9622b;--dark:#0f2a33;--card:#fff;--r:14px;color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0c171b;--soft:#122227;--ink:#eaf1f2;--muted:#9db0b5;--line:#223940;--teal:#7fc0cc;--accent:#f08350;--dark:#07100f;--card:#122227;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0c171b;--soft:#122227;--ink:#eaf1f2;--muted:#9db0b5;--line:#223940;--teal:#7fc0cc;--accent:#f08350;--dark:#07100f;--card:#122227;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.7 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}a{color:inherit}h1,h2,h3,h4,p{margin:0}
.w{max-width:1200px;margin:0 auto;padding:0 32px}
h1,h2,h3,h4{font-family:Sora,Inter,system-ui,sans-serif;color:var(--ink)}
h1{font-size:clamp(34px,4.6vw,56px);line-height:1.1;letter-spacing:-.03em;font-weight:700}
h2{font-size:clamp(26px,3vw,36px);line-height:1.18;letter-spacing:-.025em;font-weight:700}
h3{font-size:18px;line-height:1.35;letter-spacing:-.01em;font-weight:600}
.muted{color:var(--muted)}.lead{color:var(--muted);font-size:17.5px;line-height:1.7;max-width:54ch}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 24px;border-radius:10px;background:var(--accent);color:#fff;font:600 14.5px Inter,sans-serif;text-decoration:none;transition:filter .15s}
.btn:hover{filter:brightness(.92)}
.btn.line{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px #c5d0d4}.btn.line:hover{box-shadow:inset 0 0 0 1px var(--ink)}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.top{background:var(--dark);color:#b9cdd2;font-size:13px}.top .w{display:flex;justify-content:space-between;gap:16px;height:38px;align-items:center}.top a{text-decoration:none}.top a:hover{color:#fff}.top span{display:flex;gap:28px}
header{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;background:#fff;border-radius:8px;padding:2px 6px}.logo img{height:54px;width:auto}
.nl{display:flex;gap:30px;align-items:center}.nl a:not(.btn){text-decoration:none;font-weight:500;font-size:14.5px;color:var(--muted);padding:6px 0;transition:color .15s}.nl a:not(.btn):hover,.nl a[aria-current="page"]:not(.btn){color:var(--ink)}
.nl a[aria-current="page"]:not(.btn){box-shadow:0 2px 0 var(--accent)}.nl .btn{height:40px;padding:0 18px;font-size:14px}
.hero{padding:80px 0 0;border-bottom:1px solid var(--line)}
.hg{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center;padding-bottom:72px}
.hero .lead{margin:24px 0 36px}
.fig{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;aspect-ratio:5/4}.fig img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;left:16px;bottom:16px;background:var(--dark);color:#fff;border-radius:8px;padding:8px 14px;font-size:13px;font-weight:600}
.since{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);margin-top:0;border-top:1px solid var(--line)}
.since div{padding:26px 24px;border-left:1px solid var(--line)}.since div:first-child{padding-left:0;border-left:0}
.since b{display:block;font:700 24px Sora,sans-serif;letter-spacing:-.02em}.since span{font-size:13.5px;color:var(--muted)}
.hg>div:first-child{display:contents}.hg>div:first-child>h1,.hg>div:first-child>.lead,.hg>div:first-child>.cta{grid-column:1}.hg>.fig{grid-column:2;grid-row:1/4;align-self:center}.hero .cta{align-self:start}
section{padding:96px 0}.soft{background:var(--soft)}
.sh{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:48px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid var(--line)}.sh .lead{max-width:42ch;font-size:16.5px}
.band{padding:72px 0 56px;background:var(--soft);border-bottom:1px solid var(--line)}
.core{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.pic{border-radius:var(--r);overflow:hidden;background:#fff;border:1px solid var(--line)}.pic img{width:100%;height:100%;object-fit:cover}
.cp{display:grid;grid-template-columns:1fr 1fr;gap:16px}.cp .pic{aspect-ratio:4/5}
.chip{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);margin-bottom:16px}
.ticks{list-style:none;margin:28px 0 0;padding:0;display:grid;gap:16px}.ticks li{display:grid;grid-template-columns:24px 1fr;gap:12px;color:var(--muted)}
.ticks li::before{content:"";width:20px;height:20px;margin-top:4px;border-radius:50%;background:var(--teal) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/12px no-repeat}
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.bento.q{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s}.card:hover{border-color:var(--teal)}
.card .ph{aspect-ratio:3/2;background:#fff;overflow:hidden;border-bottom:1px solid var(--line)}.card .ph img{width:100%;height:100%;object-fit:cover}
.card .tx{padding:24px 26px 28px}.card p{color:var(--muted);font-size:15px;margin-top:8px}.card.txt{padding:28px 28px 30px}.card.txt p{margin-top:8px}
a.lk{text-decoration:none}
.tags{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.tags li{font-size:13px;font-weight:500;padding:5px 12px;border-radius:6px;background:var(--soft);color:var(--ink);border:1px solid var(--line)}.soft .tags li{background:var(--bg)}
.why{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.why .st{position:sticky;top:130px;align-self:start}.why .lead{margin-top:16px}
.wl{border-top:1px solid var(--line)}.wi{display:grid;grid-template-columns:52px 1fr;gap:20px;padding:28px 0;border-bottom:1px solid var(--line)}
.ic{width:44px;height:44px;border-radius:10px;background:var(--bg);border:1px solid var(--line);display:grid;place-items:center;color:var(--teal)}.ic svg{width:21px;height:21px}.wi p{color:var(--muted);margin-top:6px;font-size:15.5px}
.ag{display:grid;grid-template-columns:repeat(5,1fr);gap:20px 16px}.ap{text-decoration:none}.ap .pic{aspect-ratio:1/1;border-radius:12px}.ap span{display:block;margin-top:12px;font-weight:500;font-size:14.5px;line-height:1.4}.ap:hover span{color:var(--teal)}
.ab{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}.ab p{color:var(--muted);margin-top:18px}.ab h2+p{margin-top:22px}.ph2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.ph2 .pic{aspect-ratio:3/4}
.phil{margin-top:64px;background:var(--dark);color:#fff;border-radius:var(--r);padding:52px;display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.phil small{display:block;color:#f08350;font-weight:600;font-size:14px;margin-bottom:14px}.phil h3{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.25;font-weight:600}.phil p{color:#b4c8cd;margin:0;font-size:15.5px}
.contact{background:var(--dark);color:#fff}.contact h2{color:#fff}.contact .lead{color:#b4c8cd;margin-top:18px}
.cg{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.ci{border-top:1px solid #1f383f}.ci div{display:grid;grid-template-columns:100px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid #1f383f}.ci dt{color:#8aa3a9;font-size:14px}.ci a{text-decoration:none}.ci a:hover{color:#f08350}
.contact .btn.line{color:#fff;box-shadow:inset 0 0 0 1px #3a545b}.contact .btn.line:hover{box-shadow:inset 0 0 0 1px #fff}
.btn.wa{background:#1fa855;gap:8px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:840px}.form label{display:grid;gap:8px;font-weight:600;font-size:14px}
.form input,.form select{height:50px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:500 15px Inter,sans-serif;padding:0 14px}.form input:focus,.form select:focus{outline:2px solid var(--teal);outline-offset:-1px}
.form .full{grid-column:1/-1}.form button{border:0;cursor:pointer}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r)}.tbl{width:100%;border-collapse:collapse;min-width:680px;font-size:15px}
.tbl th{text-align:left;font-size:13.5px;color:var(--muted);font-weight:600;background:var(--soft)}.tbl th,.tbl td{padding:18px 24px;border-bottom:1px solid var(--line);vertical-align:top}.tbl tr:last-child td{border-bottom:0}.tbl td:first-child{font-weight:600;min-width:200px}.tbl td:nth-child(2){color:var(--muted)}
.wafab{position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:40;display:flex;align-items:center;gap:10px;height:50px;padding:0 20px;border-radius:999px;background:#1fa855;color:#fff;font-weight:600;font-size:14.5px;text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.2)}.wafab:hover{filter:brightness(.93)}
footer{background:var(--dark);color:#8aa3a9;font-size:14px;padding:64px 0 0}
.fg{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:56px;padding-bottom:48px}.fg h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}.fg p{max-width:36ch;margin-top:18px;line-height:1.7}
.fg a{display:block;text-decoration:none;padding:4px 0}.fg a:hover{color:#fff}.fg .logo{display:inline-flex}
.fb{border-top:1px solid #1f383f;padding:20px 32px calc(20px + env(safe-area-inset-bottom,0px));display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px}
@media (max-width:900px){.w{padding:0 22px}section{padding:64px 0}.hero{padding-top:40px}.hg{grid-template-columns:1fr;gap:32px;padding-bottom:40px}.hg>.fig{grid-column:1;grid-row:auto;order:3}.since{order:4;grid-template-columns:1fr 1fr}.since div{padding:20px 16px}.since div:nth-child(odd){padding-left:0;border-left:0}.since div:nth-child(n+3){border-top:1px solid var(--line)}
.core,.ab,.why,.cg,.phil{grid-template-columns:1fr;gap:36px}.phil{padding:32px 24px}.why .st{position:static}.bento,.bento.q{grid-template-columns:1fr}.bento .card[style]{grid-column:auto!important}.ag{grid-template-columns:repeat(2,1fr)}.form{grid-template-columns:1fr}.fg{grid-template-columns:1fr;gap:32px}.top span:last-child{display:none}.top .w{height:34px}
nav{flex-wrap:wrap;height:auto;padding:10px 0 4px}.nl{width:100%;overflow-x:auto;gap:22px;padding-bottom:10px;white-space:nowrap}.nl a:not(.btn){display:inline!important}.fb{padding-left:22px;padding-right:22px}}
@media (min-width:901px) and (max-width:1060px){.bento{grid-template-columns:repeat(2,1fr)}.ag{grid-template-columns:repeat(3,1fr)}}
@media (max-width:600px){.wafab span{display:none}.wafab{width:50px;padding:0;justify-content:center}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{header,footer,.top,.wafab,.cta{display:none!important}}

/* home: product showcase */
.xp .pic{aspect-ratio:1/1}.xc{text-decoration:none;display:block}.xc span{display:block;margin-top:12px;font:600 16px Sora,sans-serif;letter-spacing:-.01em;transition:color .2s}.xc:hover span{color:var(--accent)}

/* sample form: status message and hidden spam-trap field */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fstat{margin-top:18px;padding:16px 18px;border-radius:12px;font-size:15px;line-height:1.55;border:1px solid}
.fstat a{text-decoration:underline;font-weight:600}
.fstat.ok{background:color-mix(in srgb,#1fa855 12%,var(--bg));border-color:#1fa855;color:var(--ink)}
.fstat.err{background:color-mix(in srgb,#d9422b 10%,var(--bg));border-color:#d9422b;color:var(--ink)}
.form button:disabled{opacity:.6;cursor:wait}