/* =========================================================
   JK Shop — Stylesheet (receipt/stamp theme, polished)
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Space+Mono:wght@400;700&display=swap');

:root {
  --paper:#FBF7EE; --paper-alt:#F2ECDD; --ink:#1C2B2A; --ink-soft:#5B6B69;
  --teal:#0B5345; --teal-dark:#073C32; --teal-tint:#E4EFE9;
  --stamp:#B83227; --stamp-tint:#FBE7E3; --gold:#C99A2E;
  --amber-tint:#FAEEDA; --amber-ink:#854F0B;
  --line:#D8CFB8; --radius:16px; --shadow:0 10px 28px rgba(28,43,42,0.08); --max:1080px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { background:var(--paper); color:var(--ink); font-family:'Hind Siliguri','Segoe UI',sans-serif; line-height:1.6; -webkit-font-smoothing:antialiased; }
@media (max-width:859px){ body.has-sticky-bar{ padding-bottom:78px; } }
.icon{ width:16px; height:16px; flex:none; }
.icon-sm{ width:13px; height:13px; }
.mono{ font-family:'Space Mono',monospace; }
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
.wrap{ max-width:var(--max); margin:0 auto; padding:0 18px; }
button{ font-family:inherit; cursor:pointer; }

/* topbar */
.topbar{ background:var(--teal-dark); color:#fff; padding:13px 0; position:sticky; top:0; z-index:40; }
.topbar .wrap{ display:flex; align-items:center; justify-content:space-between; }
.brand{ font-weight:700; font-size:16.5px; display:flex; align-items:center; gap:9px; }
.brand .icon{ width:19px; height:19px; color:#BFE0D2; }
.topbar .tag{ font-size:11.5px; color:#BFE0D2; font-family:'Space Mono',monospace; letter-spacing:.5px; display:flex; align-items:center; gap:6px; }
.topbar .tag .icon{ color:#BFE0D2; }

/* shop home grid */
.shop-head{ text-align:center; padding:30px 0 18px; }
.shop-title{ font-size:26px; font-weight:700; margin-bottom:6px; }
.shop-sub{ color:var(--ink-soft); font-size:14px; }
.empty-shop{ text-align:center; padding:60px 18px; color:var(--ink-soft); }

.products{ padding:8px 0 30px; }
.p-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
@media (min-width:640px){ .p-grid{ grid-template-columns:repeat(3,1fr); } }
@media (min-width:860px){ .p-grid{ grid-template-columns:repeat(4,1fr); } }
.p-card{ background:#fff; border:1px solid var(--line); border-radius:14px; overflow:hidden; cursor:pointer; transition:box-shadow .15s, transform .15s, border-color .15s; display:block; }
.p-card:hover{ box-shadow:var(--shadow); transform:translateY(-2px); }
.p-thumb{ width:100%; aspect-ratio:1/1; background:var(--paper-alt); object-fit:cover; }
.p-thumb-empty{ display:flex; align-items:center; justify-content:center; color:var(--ink-soft); font-size:12px; }
.p-body{ padding:10px 12px 14px; }
.p-name{ font-size:13.5px; font-weight:600; margin-bottom:6px; }
.p-price-row{ display:flex; align-items:baseline; gap:7px; flex-wrap:wrap; }
.p-price{ font-weight:700; color:var(--teal-dark); font-size:15px; }
.p-price-old{ font-size:12px; color:#B4B2A9; text-decoration:line-through; }
.p-stock{ display:inline-block; margin-top:7px; font-size:11px; font-weight:600; padding:2px 8px; border-radius:12px; }
.p-stock.low{ color:var(--amber-ink); background:var(--amber-tint); }
.p-stock.out{ color:var(--stamp); background:var(--stamp-tint); }

/* image skeleton */
.skeleton{ position:relative; overflow:hidden; background:var(--paper-alt); }
.skeleton::after{ content:""; position:absolute; inset:0; transform:translateX(-100%); background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent); animation:shimmer 1.3s infinite; }
@keyframes shimmer{ 100%{ transform:translateX(100%); } }
img.is-loaded{ animation:fadein .3s ease; }
@keyframes fadein{ from{opacity:0;} to{opacity:1;} }

/* hero */
.hero{ padding:30px 0 28px; }
.hero-grid{ display:grid; grid-template-columns:1fr; gap:28px; }
@media (min-width:860px){ .hero-grid{ grid-template-columns:1.05fr 1fr; align-items:center; gap:48px; } }
.hero-media{ position:relative; }
.hero-media .frame{ background:var(--paper-alt); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; aspect-ratio:4/3.4; display:flex; align-items:center; justify-content:center; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-media .noimg{ color:var(--ink-soft); font-size:14px; }
.stamp{ position:absolute; top:-16px; right:-12px; width:104px; height:104px; border-radius:50%; border:2px dashed var(--stamp); color:var(--stamp); display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; gap:4px; transform:rotate(-10deg); background:rgba(251,247,238,.95); font-weight:700; font-size:11px; line-height:1.2; padding:6px; }
.stamp .icon{ width:20px; height:20px; }
@media (max-width:859px){ .stamp{ width:88px; height:88px; font-size:9.5px; top:-10px; right:8px; } .stamp .icon{ width:17px; height:17px; } }

.back-link{ display:inline-flex; align-items:center; gap:6px; font-size:13px; color:var(--teal); font-weight:600; margin-bottom:12px; }
.back-link:hover{ text-decoration:underline; }
.h1{ font-size:30px; font-weight:700; margin-bottom:12px; }
@media (min-width:640px){ .h1{ font-size:36px; } }
.desc{ color:var(--ink-soft); font-size:15.5px; margin-bottom:18px; max-width:520px; white-space:pre-line; }

.price-row{ display:flex; align-items:baseline; flex-wrap:wrap; gap:10px; margin-bottom:20px; }
.price{ font-family:'Space Mono',monospace; font-size:32px; font-weight:700; color:var(--teal-dark); }
.price-old{ font-family:'Space Mono',monospace; font-size:16px; color:#B4B2A9; text-decoration:line-through; }
.price-save{ font-size:12px; font-weight:700; color:var(--stamp); background:var(--stamp-tint); padding:3px 9px; border-radius:14px; }
.price-note{ font-size:13px; color:var(--ink-soft); width:100%; }

.trust-row{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:26px; }
.trust-chip{ display:flex; align-items:center; gap:7px; font-size:13px; color:var(--teal-dark); background:var(--teal-tint); padding:8px 13px; border-radius:20px; font-weight:600; }
.trust-chip .icon{ color:var(--teal); }

.btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px; background:var(--stamp); color:#fff; border:none; padding:14px 28px; border-radius:12px; font-size:16px; font-weight:700; box-shadow:0 8px 18px rgba(184,50,39,.28); transition:transform .15s, box-shadow .15s; }
.btn .icon{ color:#fff; }
.btn:hover{ transform:translateY(-1px); box-shadow:0 10px 22px rgba(184,50,39,.34); }
.btn:active{ transform:translateY(0); }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:.55; cursor:not-allowed; transform:none; box-shadow:none; }
.spinner{ width:16px; height:16px; border:2px solid rgba(255,255,255,.4); border-top-color:#fff; border-radius:50%; animation:spin .7s linear infinite; }
@keyframes spin{ to{ transform:rotate(360deg);} }

/* order receipt */
.order-section{ padding:30px 0 60px; }
.receipt{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); max-width:560px; margin:0 auto; position:relative; overflow:hidden; }
.receipt::before{ content:""; display:block; height:14px; background-image:radial-gradient(circle at 10px 0,transparent 7px,var(--paper) 7.5px); background-size:20px 14px; background-repeat:repeat-x; background-position:center top; }
.receipt-inner{ padding:8px 26px 30px; }
.receipt-title{ font-size:19px; font-weight:700; margin-bottom:4px; }
.receipt-sub{ font-size:13px; color:var(--ink-soft); margin-bottom:20px; }

.selected-product{ display:flex; gap:12px; align-items:center; background:var(--paper-alt); border-radius:12px; padding:10px 12px; margin-bottom:20px; }
.selected-product img{ width:52px; height:52px; border-radius:10px; object-fit:cover; background:#fff; }
.sp-name{ font-size:14px; font-weight:600; }
.sp-price{ font-family:'Space Mono',monospace; font-size:13px; color:var(--teal-dark); }

.field{ margin-bottom:16px; }
.field label{ display:block; font-size:13px; font-weight:600; margin-bottom:6px; }
.field label .req{ color:var(--stamp); }
.input-wrap{ display:flex; align-items:center; gap:9px; border:1px solid var(--line); background:var(--paper); border-radius:11px; padding:0 13px; transition:border-color .15s, background .15s, box-shadow .15s; }
.input-wrap .lead{ color:var(--ink-soft); flex:none; margin-top:1px; }
.input-wrap.area{ align-items:flex-start; padding-top:11px; }
.field input, .field textarea{ width:100%; border:none; background:transparent; padding:12px 0; font-size:15px; font-family:inherit; color:var(--ink); outline:none; }
.field textarea{ min-height:70px; resize:vertical; }
.input-wrap:focus-within{ border-color:var(--teal); background:#fff; box-shadow:0 0 0 3px var(--teal-tint); }
.input-wrap:focus-within .lead{ color:var(--teal); }
.field .err{ color:var(--stamp); font-size:12.5px; margin-top:5px; display:none; }
.field.invalid .input-wrap{ border-color:var(--stamp); box-shadow:0 0 0 3px var(--stamp-tint); }
.field.invalid .input-wrap .lead{ color:var(--stamp); }
.field.invalid .err{ display:block; }

/* area select cards */
.area-row{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.area-opt{ cursor:pointer; }
.area-opt input{ position:absolute; opacity:0; pointer-events:none; }
.area-card{ display:flex; flex-direction:column; gap:3px; border:1px solid var(--line); background:var(--paper); border-radius:11px; padding:11px 13px; transition:border-color .15s, box-shadow .15s, background .15s; }
.area-opt.selected .area-card{ border-color:var(--teal); background:#fff; box-shadow:0 0 0 3px var(--teal-tint); }
.area-name{ font-size:13px; font-weight:600; }
.area-charge{ font-size:13px; color:var(--teal-dark); }

.qty-row{ display:flex; align-items:center; flex-wrap:wrap; gap:12px; }
.qty-stepper{ display:flex; align-items:center; border:1px solid var(--line); border-radius:11px; overflow:hidden; }
.qty-stepper button{ background:var(--paper-alt); border:none; width:40px; height:40px; font-size:18px; font-weight:700; color:var(--teal-dark); transition:background .12s; }
.qty-stepper button:hover{ background:var(--teal-tint); }
.qty-stepper button:disabled{ opacity:.4; cursor:not-allowed; }
.qty-stepper input{ width:48px; text-align:center; border:none; background:#fff; font-family:'Space Mono',monospace; font-size:15px; font-weight:700; outline:none; }
.stock-note{ font-size:12.5px; color:var(--ink-soft); }
.stock-note.low{ color:var(--amber-ink); background:var(--amber-tint); padding:4px 10px; border-radius:14px; font-weight:600; }
.stock-note.out{ color:var(--stamp); background:var(--stamp-tint); padding:4px 10px; border-radius:14px; font-weight:600; }

/* summary */
.summary{ border-top:1px dashed var(--line); padding-top:16px; margin:20px 0; }
.summary-line{ display:flex; justify-content:space-between; align-items:center; font-size:14px; color:var(--ink-soft); margin-bottom:8px; }
.summary-line.total{ border-top:1px dashed var(--line); padding-top:12px; margin-top:4px; color:var(--ink); }
.summary-line.total span:first-child{ font-weight:600; }
.summary-line.total span:last-child{ font-family:'Space Mono',monospace; font-size:22px; font-weight:700; color:var(--stamp); }

.form-msg{ font-size:13.5px; padding:10px 13px; border-radius:11px; margin-bottom:16px; display:none; }
.form-msg.show{ display:block; }
.form-msg.error{ background:var(--stamp-tint); color:var(--stamp); }

/* thank you */
.thankyou{ padding:40px 0 60px; }
.ty-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); max-width:480px; margin:0 auto; padding:34px 26px; text-align:center; }
.ty-check{ width:64px; height:64px; border-radius:50%; background:var(--teal-tint); color:var(--teal); display:flex; align-items:center; justify-content:center; margin:0 auto 18px; }
.ty-check svg{ width:30px; height:30px; }
.ty-title{ font-size:22px; font-weight:700; margin-bottom:8px; }
.ty-sub{ color:var(--ink-soft); font-size:14px; margin-bottom:22px; }
.ty-receipt{ text-align:left; background:var(--paper); border:1px dashed var(--line); border-radius:12px; padding:16px 18px; margin-bottom:18px; }
.ty-line{ display:flex; justify-content:space-between; align-items:center; font-size:13.5px; color:var(--ink-soft); margin-bottom:9px; }
.ty-line span:last-child{ color:var(--ink); }
.ty-line.total{ border-top:1px dashed var(--line); padding-top:11px; margin-top:3px; margin-bottom:0; }
.ty-line.total span{ font-weight:700; color:var(--ink); }
.ty-line.total span:last-child{ color:var(--stamp); font-size:17px; }
.ty-note{ font-size:12.5px; color:var(--ink-soft); margin-bottom:22px; }

/* sticky bar */
.sticky-bar{ position:fixed; left:0; right:0; bottom:0; background:#fff; border-top:1px solid var(--line); box-shadow:0 -8px 24px rgba(28,43,42,.08); padding:12px 16px; display:flex; align-items:center; justify-content:space-between; gap:14px; z-index:45; transform:translateY(100%); transition:transform .25s ease; padding-bottom:calc(12px + env(safe-area-inset-bottom)); }
.sticky-bar.show{ transform:translateY(0); }
.sticky-bar .sb-label{ font-size:11px; color:var(--ink-soft); }
.sticky-bar .sb-price{ font-family:'Space Mono',monospace; font-weight:700; font-size:18px; color:var(--teal-dark); }
.sticky-bar .btn{ padding:12px 22px; font-size:14.5px; white-space:nowrap; }
@media (min-width:860px){ .sticky-bar{ display:none !important; } }

.footer{ text-align:center; padding:26px 18px 36px; color:var(--ink-soft); font-size:12.5px; }

.toast{ position:fixed; left:50%; bottom:24px; transform:translateX(-50%) translateY(20px); background:var(--ink); color:#fff; padding:12px 20px; border-radius:12px; font-size:14px; opacity:0; pointer-events:none; transition:opacity .2s, transform .2s; z-index:50; max-width:90vw; }
.toast.show{ opacity:1; transform:translateX(-50%) translateY(0); }

@media (prefers-reduced-motion:reduce){ *{ transition:none !important; scroll-behavior:auto !important; animation:none !important; } }