/* ============================================================
   TROPHY RACING — Design System v2 ("Black Carbon · Race Gold")
   วิเคราะห์จากชุดภาพ SALEPAGE: พื้นดำคาร์บอน · ทองเหลืองแข่ง · แดงเน้น
   · หัวข้อไทยไล่เฉดเงินโครเมียม · ชื่อแบรนด์ทองตัวเอียงกว้าง
   · แถบเฉียงสีทอง · ลายธงตาหมากรุก · เส้นเรืองแสงทอง
   ใช้กับหน้าลูกค้าชุดใหม่ (index / category) — ไม่ผูกกับ tokens.css เดิม
   ============================================================ */
@import url("fonts.css");

/* ฟอนต์หัวข้อ "Pattankrarn" — ถ้ามีไฟล์ฟอนต์ ให้วางที่ assets/fonts/ แล้วเปิดคอมเมนต์ด้านล่าง
@font-face{font-family:"Pattankrarn";src:url("../assets/fonts/Pattankrarn.woff2") format("woff2"),url("../assets/fonts/Pattankrarn.ttf") format("truetype");font-weight:400 900;font-display:swap}
*/

:root{
  /* surface */
  --bg:#070708; --bg-2:#0E0E10; --bg-3:#161618; --bg-4:#1F1F22;
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.14); --line-gold:rgba(255,195,0,.35);
  /* brand */
  --gold:#FFC300; --gold-2:#F5A800; --gold-3:#FFE36B; --gold-deep:#C98A00;
  --red:#E4232B; --red-2:#B8151C;
  --silver:#D9DBE0; --chrome:#9A9DA6;
  /* text */
  --text:#F5F5F6; --text-2:#C9CAD0; --muted:#9B9DA6; --dim:#66686F; --on-gold:#0B0B0C;
  /* gradients */
  --grad-gold:linear-gradient(180deg,#FFE36B 0%,#FFC300 42%,#E39B00 100%);
  --grad-gold-x:linear-gradient(90deg,#E39B00,#FFC300 45%,#FFE36B 70%,#FFC300);
  --grad-silver:linear-gradient(180deg,#FFFFFF 0%,#E8E9EC 40%,#A4A7AF 100%);
  --grad-red:linear-gradient(180deg,#FF3B43,#E4232B 55%,#B8151C);
  --carbon:
    radial-gradient(120% 70% at 50% -10%,rgba(255,195,0,.10),transparent 60%),
    repeating-linear-gradient(45deg,rgba(255,255,255,.028) 0 2px,transparent 2px 6px),
    repeating-linear-gradient(-45deg,rgba(255,255,255,.022) 0 2px,transparent 2px 6px),
    linear-gradient(180deg,#0B0B0D,#070708);
  --glow-gold:0 0 24px rgba(255,195,0,.45),0 0 64px rgba(255,195,0,.18);
  --shadow-1:0 8px 24px rgba(0,0,0,.45);
  --shadow-2:0 24px 60px rgba(0,0,0,.6);
  /* type */
  --font-head:"Pattankrarn","Kanit","Prompt",system-ui,sans-serif;
  --font-body:"Prompt","Kanit",system-ui,sans-serif;
  /* layout */
  --container:1180px; --gutter:20px; --radius:18px; --radius-lg:28px; --pill:999px;
  --nav-h:64px;
  --ease:cubic-bezier(.2,.8,.2,1); --ease-out:cubic-bezier(.16,1,.3,1);
}
@media (min-width:768px){:root{--gutter:32px;--nav-h:72px}}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html{background:var(--bg)}
body{margin:0;background-color:var(--bg);background-image:var(--carbon);color:var(--text);font-family:var(--font-body);font-size:16px;line-height:1.6;overflow-x:hidden}
img{display:block;max-width:100%}
[hidden]{display:none !important}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-family:var(--font-head);font-weight:800;line-height:1.15;letter-spacing:-.01em;text-wrap:balance}
p{margin:0}
::selection{background:var(--gold);color:var(--on-gold)}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.nw{white-space:nowrap}

/* ---------- typography helpers ---------- */
.t-silver{background:var(--grad-silver);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 2px 0 rgba(0,0,0,.35))}
.t-gold{background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 2px 0 rgba(0,0,0,.35))}
.brand-word{font-family:var(--font-head);font-weight:900;font-style:italic;letter-spacing:.02em;text-transform:uppercase;transform:scaleX(1.06);transform-origin:left;display:inline-block}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--grad-gold-x)}
.eyebrow.center{justify-content:center}
.eyebrow.center::after{content:"";width:26px;height:2px;background:var(--grad-gold-x)}
.h-1{font-size:clamp(32px,6.5vw,60px)}
.h-2{font-size:clamp(26px,5vw,44px)}
.lead{font-size:clamp(16px,1.8vw,19px);color:var(--text-2);text-wrap:pretty}
.sub{color:var(--muted);font-size:15px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:54px;padding:0 26px;border-radius:14px;font-family:var(--font-head);font-weight:700;font-size:16px;letter-spacing:.01em;white-space:nowrap;transition:transform .18s var(--ease),box-shadow .18s,filter .18s,background .18s,color .18s;will-change:transform}
.btn:active{transform:scale(.97)}
.btn-gold{background:var(--grad-gold);color:var(--on-gold);box-shadow:0 10px 26px rgba(255,195,0,.28),inset 0 1px 0 rgba(255,255,255,.55)}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,195,0,.42),inset 0 1px 0 rgba(255,255,255,.55)}
.btn-ghost{border:1.5px solid var(--line-2);color:var(--text);background:rgba(255,255,255,.03);backdrop-filter:blur(8px)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn-sm{height:44px;padding:0 18px;font-size:14px;border-radius:12px}
.btn .ic{width:20px;height:20px;flex:none}
.play{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--grad-gold);box-shadow:0 6px 16px rgba(255,195,0,.35);flex:none;transition:transform .2s var(--ease)}
.play::after{content:"";width:0;height:0;border-left:13px solid #0B0B0C;border-top:8px solid transparent;border-bottom:8px solid transparent;margin-left:3px}
a:hover>.play,button:hover>.play{transform:scale(1.08)}

/* ---------- decorative motifs ---------- */
.slash{position:absolute;pointer-events:none;background:var(--grad-gold-x);transform:skewY(-8deg);opacity:.95}
.checker{height:14px;background:
  linear-gradient(45deg,#111 25%,transparent 25%,transparent 75%,#111 75%),
  linear-gradient(45deg,#111 25%,#f2f2f2 25%,#f2f2f2 75%,#111 75%);
  background-size:14px 14px;background-position:0 0,7px 7px;background-color:#f2f2f2}
.hex{position:absolute;inset:auto;width:min(80vw,520px);aspect-ratio:1.15;border:2px solid rgba(255,255,255,.18);clip-path:polygon(25% 3%,75% 3%,100% 50%,75% 97%,25% 97%,0 50%);pointer-events:none;opacity:.6;mask:linear-gradient(180deg,#000 20%,transparent 85%)}
.carbon-card{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015)),var(--bg-3);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1)}
.gold-frame{border:1px solid var(--line-gold);box-shadow:0 0 0 1px rgba(255,195,0,.08) inset,var(--shadow-1)}

/* ---------- feature (icon + title + yellow bar + desc) ---------- */
.feat{display:grid;justify-items:center;text-align:center;gap:8px;padding:8px}
.feat .ico{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#2A2A2E,#0F0F11);border:1px solid var(--line-2);color:var(--gold);box-shadow:var(--shadow-1)}
.feat .ico svg{width:30px;height:30px}
.feat b{font-family:var(--font-head);font-weight:700;font-size:17px;line-height:1.25}
.feat i{display:block;width:34px;height:3px;border-radius:3px;background:var(--grad-gold-x)}
.feat span{color:var(--muted);font-size:14px}
.feat.left{justify-items:start;text-align:left}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.check-list li{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start}
.check-list .ck{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;border:2px solid var(--gold);color:var(--gold)}
.check-list .ck svg{width:16px;height:16px}
.check-list b{display:block;font-family:var(--font-head);font-weight:700;font-size:18px;line-height:1.2}
.check-list span{color:var(--text-2);font-size:15px}

/* ---------- product card ---------- */
.pcard{position:relative;display:block;background:var(--bg-3);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s var(--ease),border-color .25s,box-shadow .25s;color:var(--text)}
.pcard:hover{transform:translateY(-4px);border-color:var(--line-gold);box-shadow:var(--shadow-2)}
.pcard .img{position:relative;aspect-ratio:1;background:#111;overflow:hidden}
.pcard .img img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.pcard:hover .img img{transform:scale(1.04)}
.pcard .img .ph{position:absolute;inset:0;display:grid;place-items:center;color:var(--dim);font-size:12px}
.pcard .tags{position:absolute;top:10px;left:10px;display:flex;gap:6px}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;font-family:var(--font-head);font-weight:700;font-size:12px;letter-spacing:.02em}
.tag-red{background:var(--red);color:#fff}
.tag-gold{background:var(--grad-gold);color:var(--on-gold)}
.pcard .body{padding:12px 14px 14px;display:grid;gap:4px}
.pcard .model{font-family:var(--font-head);font-weight:700;font-size:12px;letter-spacing:.08em;color:var(--gold);text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pcard .name{font-weight:500;font-size:15px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.7em}
.pcard .price{display:flex;align-items:baseline;gap:8px;margin-top:4px}
.pcard .price b{font-family:var(--font-head);font-weight:800;font-size:20px;color:#fff}
.pcard .price s{color:var(--dim);font-size:13px}
.pgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (min-width:640px){.pgrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}}
@media (min-width:1024px){.pgrid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}

/* ---------- chips ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:2px;margin:0 calc(var(--gutter) * -1);padding-inline:var(--gutter)}
.chips::-webkit-scrollbar{display:none}
.chip{flex:none;display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 16px;border-radius:var(--pill);border:1px solid var(--line-2);background:rgba(255,255,255,.03);font-family:var(--font-head);font-weight:600;font-size:14px;color:var(--text-2);transition:all .18s}
.chip:hover{border-color:var(--gold);color:var(--gold)}
.chip.on{background:var(--grad-gold);border-color:transparent;color:var(--on-gold);box-shadow:0 6px 16px rgba(255,195,0,.3)}
.chip small{font-weight:500;opacity:.7}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);background:rgba(7,7,8,.72);backdrop-filter:blur(18px) saturate(1.3);-webkit-backdrop-filter:blur(18px) saturate(1.3);border-bottom:1px solid var(--line)}
.nav::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(255,195,0,.5),transparent)}
.nav .container{height:100%;display:flex;align-items:center;gap:14px}
.nav-brand{display:flex;align-items:center;gap:10px;min-width:0}
.nav-brand img{width:40px;height:40px;object-fit:contain}
.nav-brand .w{display:grid;line-height:1}
.nav-brand .w b{font-family:var(--font-head);font-weight:900;font-style:italic;font-size:15px;letter-spacing:.04em;color:var(--gold)}
.nav-brand .w small{font-family:var(--font-head);font-size:9.5px;letter-spacing:.24em;color:var(--silver);margin-top:3px}
.nav-links{display:none;margin-left:auto;gap:2px}
.nav-links a{padding:8px 14px;border-radius:10px;font-family:var(--font-head);font-weight:600;font-size:14px;color:var(--text-2)}
.nav-links a:hover{color:var(--gold);background:rgba(255,255,255,.05)}
.nav-cta{margin-left:auto}
.nav-links+.nav-cta{margin-left:6px}
@media (min-width:900px){.nav-links{display:flex}}
/* มือถือ (หน้าที่มีเมนู): header เหลือแถวเมนูเลื่อนซ้าย-ขวาอย่างเดียว (โลโก้/ปุ่มแชทซ่อน — แชทยังกดได้จากแถบล่าง) */
@media (max-width:639px){
  :root:has(.nav-links){--nav-h:52px}
  .nav .container:has(.nav-links) .nav-brand,.nav .container:has(.nav-links) .nav-cta{display:none}
  .nav-links{display:flex;flex:0 0 calc(100% + var(--gutter) * 2);margin:0 calc(var(--gutter) * -1);padding:0 var(--gutter);gap:6px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links a{flex:none;padding:6px 14px;font-size:13.5px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);white-space:nowrap}
}


/* ---------- sticky mobile bar ---------- */
.mbar{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px var(--gutter) calc(10px + env(safe-area-inset-bottom));background:rgba(7,7,8,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-top:1px solid var(--line);display:flex;gap:10px}
.mbar .btn{flex:1;height:50px}
@media (min-width:900px){.mbar{display:none}}

/* ---------- footer ---------- */
.foot{padding:40px 0 calc(90px + env(safe-area-inset-bottom));text-align:center;color:var(--muted);font-size:13px}
.foot .links{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px;margin-bottom:12px;font-family:var(--font-head);font-weight:600;font-size:13px;letter-spacing:.06em;text-transform:uppercase}
.foot .links a:hover{color:var(--gold)}
@media (min-width:900px){.foot{padding-bottom:40px}}

/* ---------- motion ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}