/* Easy AI — หน้าร้าน catalog
   ตัวแปรทั้งหมดยกมาจาก docs/04-visual-kit.md §2 (3 ชั้น) และปุ่มจาก §3
   กฎเดียวกับ demo ทุกตัว: สีทุกสีมาจากตัวแปร ห้ามฮาร์ดโค้ดสีที่อื่น
   และห้ามมี hex ใต้บล็อกชั้น 3 (เฉดอ่อนต้อง color-mix ไม่งั้น reskin แล้วพื้นหลังค้างสีเดิม) */
:root {
  /* ชั้น 1: ฐาน 12 ตัวของ kit — reskin ทั้งหน้าร้านแก้แค่บล็อกนี้ */
  --pink: #ff5aa5;  --pink-d: #dd2f81;  --pink-l: #ff9ccb;
  --grape: #a06bff; --grape-d: #7b40e0;
  --mint: #2bd0b0;  --mint-d: #12a88c;  --mint-l: #7ff0da;
  --sky: #56c8ff;
  --lemon: #ffc53f; --lemon-d: #e0951a;
  --ink: #4a2a63;   --muted: #8f6cae;   --dim: #b49bcb;
  --cream: #fff8fc; --line: #f0dcef;

  /* ชั้น 2: สีกลาง/สถานะ — ไม่ผูกธีมแบรนด์ จึงเป็น hex ได้ */
  --white: #fff;  --danger: #ff5a6e;  --lemon-ink: #7a4c05;

  /* ชั้น 3: เฉดที่ derive จากฐาน — ห้ามใส่ hex ใต้บรรทัดนี้ */
  --pink-t0:  color-mix(in srgb, var(--pink) 6%,  var(--white));
  --pink-t1:  color-mix(in srgb, var(--pink) 12%, var(--white));
  --pink-t2:  color-mix(in srgb, var(--pink) 25%, var(--white));
  --grape-t0: color-mix(in srgb, var(--grape) 8%,  var(--white));
  --grape-t1: color-mix(in srgb, var(--grape) 14%, var(--white));
  --grape-t2: color-mix(in srgb, var(--grape) 28%, var(--white));
  --grape-t3: color-mix(in srgb, var(--grape) 40%, var(--white));
  --grape-l:  color-mix(in srgb, var(--grape) 62%, var(--white));
  --mint-t1:  color-mix(in srgb, var(--mint) 12%,  var(--white));
  --sky-t1:   color-mix(in srgb, var(--sky) 14%,   var(--white));
  --sky-t2:   color-mix(in srgb, var(--sky) 35%,   var(--white));
  --lemon-l:  color-mix(in srgb, var(--lemon) 62%, var(--white));
  --off-1:    color-mix(in srgb, var(--dim) 18%, var(--white));
  --off-2:    color-mix(in srgb, var(--dim) 38%, var(--white));
  --off-3:    color-mix(in srgb, var(--dim) 70%, var(--white));
  --ink-2:    color-mix(in srgb, var(--muted) 70%, var(--ink));

  --r: 18px;        --sh: 0 10px 26px rgba(160, 80, 160, 0.2);
  --pad: 20px;      --maxw: 1120px;
  --font-head: 'Chakra Petch', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body: 'Anuphan', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box }
html { -webkit-text-size-adjust: 100% }
body {
  margin: 0; font-family: var(--font-body); color: var(--ink);
  background: linear-gradient(180deg, var(--pink-t1), var(--cream) 380px, var(--cream));
  line-height: 1.65; overflow-x: hidden;
}
h1, h2, h3, .t { font-family: var(--font-head); font-weight: 700; letter-spacing: .01em; margin: 0 }
a { color: var(--grape-d); text-decoration: none }
img { max-width: 100%; display: block }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad) }

/* ── ไอคอน (SVG sprite ในไฟล์ — ห้าม emoji ตาม ADR-0005) ── */
.ic {
  width: 1.15em; height: 1.15em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
  vertical-align: -.18em;
}
.ic.lg { width: 1.6em; height: 1.6em }
.ic.xl { width: 2.4em; height: 2.4em }

/* ── ปุ่มลูกกวาด (§3) ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 22px; border-radius: var(--r); border: 0; cursor: pointer;
  font-size: 15.5px; font-weight: 800; font-family: var(--font-head);
  color: var(--white); letter-spacing: .02em; text-align: center;
  background: linear-gradient(180deg, var(--pink-l), var(--pink));
  box-shadow: 0 5px 0 var(--pink-d), 0 9px 18px rgba(221, 47, 129, .28);
  transition: transform .06s, box-shadow .06s;
}
.btn:active { transform: translateY(4px); box-shadow: 0 1px 0 var(--pink-d) }
.btn.sec { background: linear-gradient(180deg, var(--mint-l), var(--mint));
  box-shadow: 0 5px 0 var(--mint-d), 0 9px 18px rgba(18, 168, 140, .24) }
.btn.sec:active { box-shadow: 0 1px 0 var(--mint-d) }
.btn.gold { background: linear-gradient(180deg, var(--lemon-l), var(--lemon)); color: var(--lemon-ink);
  box-shadow: 0 5px 0 var(--lemon-d), 0 9px 18px rgba(224, 149, 26, .28) }
.btn.gold:active { box-shadow: 0 1px 0 var(--lemon-d) }
.btn.ghost { background: linear-gradient(180deg, var(--white), var(--grape-t0)); color: var(--grape-d);
  box-shadow: 0 5px 0 var(--grape-t2) }
.btn.ghost:active { box-shadow: 0 1px 0 var(--grape-t2) }
.btn.wide { width: 100% }

/* ── หัวเว็บ ── */
.top {
  position: sticky; top: 0; z-index: 30;
  background: color-mix(in srgb, var(--cream) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 2px solid var(--line);
}
.top .wrap { display: flex; align-items: center; gap: 12px; height: 62px }
.logo { display: flex; align-items: center; gap: 9px; font-family: var(--font-head);
  font-weight: 700; font-size: 19px; color: var(--ink) }
.logo .mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px;
  color: var(--white); background: linear-gradient(160deg, var(--grape), var(--pink)) }
.top .sp { flex: 1 }
.top a.nav { font-weight: 700; font-size: 14.5px; color: var(--ink-2); padding: 8px 10px; border-radius: 12px }
.top a.nav:hover { background: var(--grape-t0) }

/* ── hero ── */
.hero { padding: 54px 0 30px; text-align: center }
.hero h1 { font-size: clamp(30px, 6vw, 46px); line-height: 1.25 }
.hero h1 .hl { color: var(--pink-d) }
.hero .sub { font-size: clamp(15px, 2.6vw, 18px); color: var(--ink-2); max-width: 640px; margin: 14px auto 0 }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 20px }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 7px 13px; border-radius: 999px;
  background: var(--white); border: 2px solid var(--line); font-size: 13.5px; font-weight: 700; color: var(--ink-2) }
.chip .ic { color: var(--mint-d) }

/* ── การ์ด ── */
.card { background: var(--white); border: 2px solid var(--line); border-radius: var(--r); box-shadow: var(--sh) }
.grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); padding: 12px 0 46px }
.gcard { overflow: hidden; display: flex; flex-direction: column; transition: transform .12s, box-shadow .12s }
.gcard:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(160, 80, 160, .26) }
.gcard .shot { aspect-ratio: 16 / 9; width: 100%; height: auto; object-fit: cover; background: var(--grape-t1); border-bottom: 2px solid var(--line) }
.gcard .body { padding: 16px 17px 18px; display: flex; flex-direction: column; gap: 9px; flex: 1 }
.gcard h3 { font-size: 20px; display: flex; align-items: center; gap: 8px }
.gcard h3 .ic { color: var(--pink-d) }
.gcard .th { font-size: 13.5px; color: var(--muted); margin-top: -4px }
.gcard .tag { font-size: 14.5px; color: var(--ink-2); flex: 1 }
.meta { display: flex; flex-wrap: wrap; gap: 7px }
.meta span { font-size: 12.5px; font-weight: 700; color: var(--grape-d); background: var(--grape-t0);
  border-radius: 999px; padding: 4px 11px }
.gcard .acts { display: flex; gap: 9px; margin-top: 4px }
.gcard .acts .btn { flex: 1; padding: 12px 14px; font-size: 14.5px }

/* ── หน้าสินค้า ── */
.sec-h { display: flex; align-items: baseline; gap: 12px; padding: 26px 0 4px }
.sec-h h2 { font-size: 23px }
.sec-h .note { font-size: 14px; color: var(--muted) }
.crumb { padding: 18px 0 0; font-size: 14px; color: var(--muted) }
.crumb a { font-weight: 700 }
.detail { display: grid; gap: 26px; grid-template-columns: 1.35fr 1fr; align-items: start; padding: 16px 0 40px }
.detail .shotbox { overflow: hidden; padding: 0 }
.detail .shotbox img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; height: auto }
.detail h1 { font-size: clamp(26px, 5vw, 36px) }
.detail .th { color: var(--muted); font-size: 16px; margin-top: 2px }
.detail .tag { font-size: 17px; color: var(--ink-2); margin: 14px 0 0 }
.detail .about { margin: 12px 0 0; color: var(--ink-2) }
.hl { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 9px }
.hl li { display: flex; gap: 10px; align-items: flex-start; font-size: 15px }
.hl li .ic { color: var(--mint-d); margin-top: .28em }
.side { display: grid; gap: 16px; position: sticky; top: 78px }
.panel { padding: 18px }
.panel h3 { font-size: 17px; margin-bottom: 10px }
.tier { display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 0; border-bottom: 1px dashed var(--line) }
.tier:last-of-type { border-bottom: 0 }
.tier .nm { font-family: var(--font-head); font-weight: 700 }
.tier .rt { font-size: 12.5px; color: var(--muted); max-width: 190px }
.tier .pr { font-family: var(--font-head); font-weight: 700; color: var(--pink-d); white-space: nowrap; text-align: right }
.tier .pr small { display: block; color: var(--muted); font-weight: 600; font-size: 12px }
.inc { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 14.5px; color: var(--ink-2) }
.inc li { display: flex; gap: 9px; align-items: flex-start }
.inc li .ic { color: var(--mint-d); margin-top: .28em }
.stack { display: grid; gap: 10px; margin-top: 14px }

/* ── modal ซื้อ (mock) ── */
.mask { position: fixed; inset: 0; z-index: 60; display: none; place-items: center; padding: 20px;
  background: color-mix(in srgb, var(--grape-d) 34%, transparent) }
.mask.on { display: grid }
.modal { max-width: 430px; width: 100%; padding: 24px; text-align: center }
.modal .ic.xl { color: var(--pink-d) }
.modal h3 { font-size: 21px; margin: 10px 0 8px }
.modal p { color: var(--ink-2); font-size: 15px; margin: 0 0 18px }
.modal .row { display: grid; gap: 10px }

/* ── ท้ายเว็บ ── */
.foot { border-top: 2px solid var(--line); background: var(--white); padding: 26px 0 40px; margin-top: 20px }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between }
.foot .c { font-size: 13.5px; color: var(--muted) }

@media (max-width: 860px) {
  .detail { grid-template-columns: 1fr }
  .side { position: static }
  .hero { padding: 38px 0 22px }
}