:root{
  --green:#7ab800; --green-d:#5f9500;
  --dark:#0a0a0a; --dark2:#141414; --dark3:#1e1e1e;
  --ink:#111; --muted:#6b7280;
  --line:#e5e7eb; --card:#fff; --bg:#f5f5f5;
  --red:#ef4444; --blue:#3b82f6; --teal:#06b6d4; --purple:#8b5cf6; --orange:#f97316; --yellow:#eab308;
  --radius:12px;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Tahoma,"Noto Sans Thai",sans-serif;line-height:1.65;color:var(--ink);background:var(--bg)}
img{max-width:100%;display:block}
.container{max-width:1160px;margin:0 auto;padding:0 1.2rem}
.narrow{max-width:720px}

/* TOP BAR */
.topbar{background:var(--dark);color:#d1d5db;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar-tag{color:var(--green);font-weight:800}
.topbar-right{display:flex;align-items:center;gap:1rem}
.cart-btn{background:var(--green);border:0;color:#fff;font-weight:800;font-size:.72rem;padding:.35rem .7rem;border-radius:6px;cursor:pointer;letter-spacing:.06em}
.cart-count{background:#fff;color:var(--green);border-radius:50%;padding:0 .35rem;margin-left:.25rem}

/* HEADER */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 10px rgba(0,0,0,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:1.5rem;font-weight:900;letter-spacing:.02em;text-decoration:none;color:var(--dark)}
.c1{color:var(--red)} .c2{color:var(--orange)} .c3{color:var(--yellow)} .c4{color:var(--green)} .c5{color:var(--blue)} .c6{color:var(--purple)}
.main-nav{display:flex;gap:1.4rem;align-items:center}
.main-nav a{color:#374151;text-decoration:none;font-weight:600;font-size:.92rem;letter-spacing:.02em}
.main-nav a:hover{color:var(--green)}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer;color:var(--dark)}

/* BUTTONS */
.btn{display:inline-block;padding:.65rem 1.25rem;border-radius:8px;text-decoration:none;border:0;cursor:pointer;font-weight:800;letter-spacing:.04em;text-transform:uppercase;font-size:.85rem;transition:.2s}
.btn-lg{padding:.85rem 1.7rem;font-size:.95rem}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-d)}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--dark)}
.btn-outline{background:#fff;border:2px solid var(--green);color:var(--green)}
.btn-outline:hover{background:var(--green);color:#fff}
.btn-block{width:100%;margin-top:.8rem}

/* HERO */
.hero{position:relative;background:linear-gradient(135deg,#0a0a0a 0%,#1b1b2f 45%,#10321f 100%);color:#fff;padding:4.5rem 0;overflow:hidden;text-align:center}
.hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(239,68,68,.25),transparent 40%),radial-gradient(circle at 80% 30%,rgba(59,130,246,.25),transparent 40%),radial-gradient(circle at 50% 90%,rgba(122,184,0,.3),transparent 45%);pointer-events:none}
.hero-content{position:relative}
.badge{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:.4rem 1rem;border-radius:999px;font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:#e5e7eb}
.hero-title{margin:.9rem 0 .2rem;font-size:clamp(4rem,12vw,8rem);line-height:.9;font-weight:900;letter-spacing:-.02em}
.l1{color:var(--red)} .l2{color:var(--teal)} .l3{color:var(--green)}
.hero-sub{margin:0;font-size:clamp(1.1rem,3vw,1.7rem);font-weight:800;letter-spacing:.35em;text-transform:uppercase;color:#fff}
.lead{color:#d1d5db;max-width:36rem;margin:1rem auto}
.hero-actions{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap;margin:1.4rem 0}
.hero-stats{display:flex;gap:1rem;justify-content:center;margin-top:1.4rem;flex-wrap:wrap}
.hero-stats div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:.7rem 1.2rem;border-radius:10px;text-align:center;min-width:9rem}
.hero-stats strong{font-size:1.6rem;display:block;color:var(--green)}
.hero-stats span{font-size:.78rem;color:#cbd5e1}

/* SECTION HEAD */
.section{padding:3.6rem 0}
.alt{background:#fff}
.section-head{text-align:center;margin-bottom:2rem}
.section-head .pre{display:inline-block;color:var(--green);font-weight:800;letter-spacing:.28em;text-transform:uppercase;font-size:.72rem}
.section-head .title{margin:.3rem 0;font-size:clamp(1.6rem,4vw,2.4rem);font-weight:900;text-transform:uppercase;letter-spacing:.03em}
.section-head .hl{color:var(--green)}
.section-head .subtitle{color:var(--muted);margin:0}
.section-head.light .title,.section-head.light .subtitle{color:#fff}
.section-head.light .subtitle{color:#cbd5e1}

/* GRIDS */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:2rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem;transition:.25s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}

/* PRODUCT CARDS (pillars) */
.product{display:flex;flex-direction:column;overflow:hidden;padding:0}
.product-media{height:150px;display:flex;align-items:center;justify-content:center;font-size:3.4rem}
.icon.c1{background:linear-gradient(135deg,#fee2e2,#ffedd5)} .icon.c2{background:linear-gradient(135deg,#dbeafe,#e0f2fe)}
.icon.c3{background:linear-gradient(135deg,#fef9c3,#ffedd5)} .icon.c4{background:linear-gradient(135deg,#fce7f3,#ede9fe)}
.product-body{padding:1rem 1.1rem;display:flex;flex-direction:column;flex:1}
.product .en{color:var(--green);font-weight:800;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}
.product h3{margin:.3rem 0 .4rem;font-size:1.05rem}
.swatches{display:flex;gap:.4rem;margin:.3rem 0}
.sw{width:16px;height:16px;border-radius:50%;background:var(--c);border:2px solid #fff;box-shadow:0 0 0 1px var(--line);cursor:pointer;transition:.15s}
.sw:hover{transform:scale(1.25)}
.desc{color:var(--muted);font-size:.9rem;margin:.3rem 0}
.feat{padding-left:1.1rem;margin:.3rem 0 .5rem;font-size:.85rem;color:#374151}

/* CATEGORY CARDS */
.cat h3{margin:.2rem 0 .4rem}
.cat p{color:var(--muted);font-size:.9rem;margin:0 0 .6rem}
.tags{display:flex;gap:.4rem;flex-wrap:wrap}
.tag{background:#eef2ff;color:#3730a3;border-radius:999px;padding:.2rem .7rem;font-size:.72rem;font-weight:700;letter-spacing:.03em}

/* LIVE SEARCH */
.live-search{background:linear-gradient(135deg,#0f172a,#1e3a8a);padding:3.6rem 0}
.search-box{position:relative;max-width:640px;margin:0 auto;display:flex;align-items:center}
.search-icon{position:absolute;left:1rem;color:var(--muted)}
.search-box input{width:100%;padding:.9rem 3rem;border:0;border-radius:10px;font-size:1rem;outline:none}
.search-hint{position:absolute;right:1rem;color:var(--muted);font-size:.75rem}
.search-results{max-width:640px;margin:1rem auto 0;display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}
.sr-chip{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);color:#fff;padding:.5rem .9rem;border-radius:999px;cursor:pointer;font-size:.85rem;animation:fade .2s}
.sr-chip:hover{background:var(--green);border-color:var(--green)}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* TOOLS */
.tool label{display:block;margin:.5rem 0;font-size:.9rem;font-weight:600}
.tool input,.tool select,.card input,.card select,.card textarea{width:100%;padding:.6rem .7rem;margin-top:.3rem;border:1px solid #d1d5db;border-radius:8px;font-size:1rem}
.tool input:focus,.card input:focus{outline:2px solid var(--green);border-color:var(--green)}
.result{background:#f3f4f6;border-radius:8px;padding:.7rem;margin-top:.8rem;min-height:2.5rem;font-size:.95rem}

/* ABOUT / GOALS */
.lead-sm{font-size:1.15rem}
.goal-boxes{display:grid;gap:1rem;margin-top:1rem}
.goal{display:flex;gap:.8rem;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1rem}
.g-dot{width:6px;border-radius:3px;flex-shrink:0}
.g-dot.c4{background:var(--green)} .g-dot.c2{background:var(--blue)}
.goal h3{margin:0 0 .3rem}.goal p{margin:0;color:var(--muted)}
.info-card{background:var(--dark);color:#fff;border-radius:var(--radius);padding:1.6rem}
.info-card ol{padding-left:1.2rem}.info-card .muted{color:#cbd5e1}

/* BLOG */
.blog{overflow:hidden;padding:0;display:flex;flex-direction:column}
.blog-media{height:150px;display:flex;align-items:center;justify-content:center;font-size:3.2rem}
.b1{background:linear-gradient(135deg,#dbeafe,#e0f2fe)} .b2{background:linear-gradient(135deg,#dcfce7,#d1fae5)} .b3{background:linear-gradient(135deg,#fef3c7,#fde68a)}
.blog-body{padding:1rem 1.1rem}
.blog-body h3{margin:.4rem 0 .3rem}
.blog-body p{margin:0;color:var(--muted);font-size:.92rem}

/* CAREERS */
.career-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}
.career{background:#fff;border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem;text-align:center;font-weight:700;transition:.2s}
.career:hover{border-color:var(--green);color:var(--green);transform:translateY(-3px)}

/* CONTACT */
.contact-card{max-width:560px;margin:0 auto}
.contact-card label{display:block;margin:.6rem 0;font-weight:600;font-size:.9rem}

/* FOOTER */
footer{background:var(--dark);color:#cbd5e1;padding:1.4rem 0;margin-top:2rem}
.footer-grid{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.footer-links{display:flex;gap:1.2rem}
.footer-links a{color:#fff;text-decoration:none;font-weight:600}
.footer-links a:hover{color:var(--green)}

/* RESPONSIVE ทุกอุปกรณ์ */
@media(max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .two-col,.grid-3{grid-template-columns:1fr}
  .career-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .topbar-tag{display:none}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:1rem;gap:.9rem}
  .main-nav.open{display:flex}
  .nav-toggle{display:block}
  .grid-4,.grid-3,.career-grid{grid-template-columns:1fr}
  .hero{padding:3rem 0}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-stats{flex-direction:column}
  .hero-stats div{min-width:auto}
  .section{padding:2.4rem 0}
  .footer-grid{flex-direction:column;gap:.6rem}
}