/* ─── Jiancha Brand CI — White + Gold sharp ─── */
/* No black anywhere on screen. PDF/print views keep their dark text since
 * a printed receipt that's not legible on paper helps nobody — those styles
 * live inline on the pages that build the print HTML. */
:root{
  --primary:#ffffff;            /* surface — was #181818 */
  --gold:#AD9C82;
  --gold-dark:#8a7d66;
  --gold-light:#d6c6a8;
  --bg:#fafaf8;                 /* page bg — was #f5f3f0 */
  --card:#ffffff;
  --text:#2a2118;               /* warm dark — was pure-black #181818 */
  --muted:#7a6e62;              /* warmer muted — was #525252 */
  --border:#ebe6dd;
  --border-strong:#d6cfc1;
  --ok:#2e7d32;
  --err:#c62828;
  --beige:#f5efe5;
  --shadow-sm:0 1px 2px rgba(42,33,24,.06);
  --shadow-md:0 4px 12px rgba(42,33,24,.08);
  --shadow-lg:0 8px 24px rgba(42,33,24,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Sarabun','Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
a{color:var(--gold-dark);text-decoration:none}
.container{max-width:1280px;margin:0 auto;padding:20px}

/* ─── Navigation — white surface with gold accent ─── */
.nav{background:#ffffff;border-bottom:1px solid var(--border);padding:14px 20px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;box-shadow:var(--shadow-sm)}
.nav .brand{font-weight:700;font-size:18px;color:var(--gold-dark);letter-spacing:.3px;margin-right:12px}
.nav a{color:var(--text);padding:7px 12px;border-radius:8px;font-size:14px;transition:background .15s,color .15s;font-weight:500;display:inline-flex;align-items:center;gap:7px}
.nav a svg{width:18px;height:18px;flex-shrink:0}
.nav a:hover{background:var(--beige);color:var(--gold-dark)}
.nav a.active{background:var(--gold);color:#ffffff}
.nav .spacer{flex:1}
.nav .user{color:var(--muted);font-size:14px}

/* ─── Card ─── */
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px;box-shadow:var(--shadow-sm)}

/* ─── Buttons ─── */
.btn{background:var(--gold);color:#ffffff;border:none;border-radius:8px;padding:10px 18px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .15s,transform .1s,box-shadow .15s}
.btn:hover{background:var(--gold-dark);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--gold-dark);border:1px solid var(--border-strong)}
.btn.ghost:hover{background:var(--beige);border-color:var(--gold)}
.btn.sm{padding:6px 12px;font-size:13px}

/* ─── Form elements ─── */
input,select,textarea{width:100%;background:#fff;border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:8px;font-family:inherit;font-size:14px;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(173,156,130,.15)}
label{display:block;margin-bottom:6px;color:var(--muted);font-size:13px}

/* ─── Layout helpers ─── */
.row{display:flex;gap:12px;flex-wrap:wrap}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}

/* ─── Item card (legacy) ─── */
.item-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;transition:border-color .2s,transform .2s,box-shadow .2s}
.item-card:hover{border-color:var(--gold);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.item-card h3{font-size:15px;margin-bottom:6px}
.item-card .price{color:var(--gold-dark);font-size:20px;font-weight:700;margin:8px 0}
.item-card .meta{color:var(--muted);font-size:12px}

/* ─── Badges ─── */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--beige);color:var(--muted);font-size:11px;margin-bottom:6px}
.badge.ok{background:#e8f5e9;color:var(--ok)}
.badge.low{background:#ffebee;color:var(--err)}

/* ─── Login — light cream gradient (no more black bg) ─── */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#fafaf8 0%,#f5efe5 60%,#e8dfcd 100%)}
.login-box{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:40px;width:100%;max-width:400px;box-shadow:var(--shadow-lg)}
.login-box h1{color:var(--gold-dark);margin-bottom:6px;text-align:center}
.login-box p.sub{color:var(--muted);text-align:center;margin-bottom:24px;font-size:14px}
.login-box input{margin-bottom:14px}
.login-box .btn{width:100%}

/* ─── Toast ─── */
.toast{position:fixed;bottom:24px;right:24px;background:#ffffff;color:var(--text);border:1px solid var(--gold);padding:14px 20px;border-radius:10px;z-index:1000;animation:slide .3s;box-shadow:var(--shadow-lg)}
@keyframes slide{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* ─── Errors & Cart ─── */
.err{color:var(--err);font-size:13px;margin-top:8px;min-height:18px}
.cart-badge{display:inline-flex;align-items:center;justify-content:center;background:var(--err);color:#fff;font-size:11px;font-weight:700;min-width:18px;height:18px;border-radius:99px;padding:0 5px;margin-left:4px;position:relative;top:-2px}

/* ─── Responsive ─── */
@media(max-width:1024px){
  .container{padding:16px}
}
@media(max-width:768px){
  .nav{padding:10px 14px;gap:10px}
  .nav .brand{font-size:16px}
  .nav a{padding:5px 8px;font-size:13px}
  .nav .user{font-size:12px}
  .container{padding:12px}
  .card{padding:14px;border-radius:10px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px}
}
@media(max-width:480px){
  .nav{flex-wrap:wrap;gap:6px;padding:8px 10px}
  .nav .brand{font-size:15px;width:100%;text-align:center}
  .nav a{font-size:12px;padding:4px 6px}
  .container{padding:8px}
  .card{padding:12px;border-radius:8px;margin-bottom:10px}
  .btn{padding:8px 14px;font-size:14px}
  .btn.sm{padding:5px 10px;font-size:12px}
  input,select,textarea{padding:8px 10px;font-size:13px}
}