/* GCTU Campus Shop — vibrant shop theme (Bootstrap 5 override). Navy #002060 / Amber #D4A017 + lively accents. */
:root{
  --gctu-navy:#002060;
  --gctu-navy-700:#001845;
  --gctu-amber:#D4A017;
  --gctu-amber-600:#b8860b;
  --pop-pink:#ff5a8a;
  --pop-purple:#7b3ff2;
  --pop-teal:#12b5a5;
  --pop-orange:#ff7a29;
  --bs-primary:#002060;
  --ink:#1a2233;
  --muted:#6b7590;
  --line:#e6eaf1;
  --bg-soft:#f5f7fb;
  --grad-hero:linear-gradient(120deg,#002060 0%,#2a1a6e 45%,#7b3ff2 100%);
  --grad-amber:linear-gradient(120deg,#D4A017,#ff9f1c);
}
*{scroll-behavior:smooth}
body{font-family:'Open Sans',system-ui,Segoe UI,sans-serif;color:var(--ink);background:#fbfcfe}
h1,h2,h3,h4,h5,.brand-font{font-family:'Roboto',system-ui,sans-serif;font-weight:700}
a{text-decoration:none}

/* ---- Buttons / colours ---- */
.btn{transition:transform .12s ease, box-shadow .18s ease, background .18s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{--bs-btn-bg:var(--gctu-navy);--bs-btn-border-color:var(--gctu-navy);
  --bs-btn-hover-bg:var(--gctu-navy-700);--bs-btn-hover-border-color:var(--gctu-navy-700);
  --bs-btn-active-bg:var(--gctu-navy-700);--bs-btn-disabled-bg:var(--gctu-navy)}
.btn-primary:hover{box-shadow:0 8px 20px rgba(0,32,96,.28)}
.btn-amber{background:var(--grad-amber);border:0;color:#1a2233;font-weight:700}
.btn-amber:hover{color:#1a2233;box-shadow:0 8px 22px rgba(212,160,23,.45);transform:translateY(-1px)}
.btn-outline-primary{--bs-btn-color:var(--gctu-navy);--bs-btn-border-color:var(--gctu-navy);
  --bs-btn-hover-bg:var(--gctu-navy);--bs-btn-hover-border-color:var(--gctu-navy)}
.text-navy{color:var(--gctu-navy)!important}
.text-amber{color:var(--gctu-amber)!important}
.bg-navy{background:var(--gctu-navy)!important}
.bg-amber{background:var(--gctu-amber)!important}
.bg-soft{background:var(--bg-soft)!important}

/* ---- Header ---- */
.topbar{background:linear-gradient(90deg,var(--gctu-navy),#241a5e);color:#e7ecfb;font-size:.85rem}
.topbar a{color:#e7ecfb;transition:color .15s}
.topbar a:hover{color:var(--gctu-amber)}
.brand-logo{height:46px;width:auto;filter:drop-shadow(0 2px 4px rgba(0,0,0,.12))}
.brand-name{color:var(--gctu-navy);line-height:1;font-size:1.4rem;margin:0}
.brand-name small{display:block;font-size:.62rem;letter-spacing:3px;color:var(--gctu-amber);font-weight:700}
.main-nav{background:var(--grad-hero);box-shadow:0 4px 18px rgba(43,26,110,.25)}
.main-nav .nav-link{color:#eef1fb;font-weight:600;padding:.9rem 1rem;position:relative}
.main-nav .nav-link::after{content:"";position:absolute;left:1rem;right:1rem;bottom:.5rem;height:3px;border-radius:3px;background:var(--gctu-amber);transform:scaleX(0);transition:transform .2s;transform-origin:left}
.main-nav .nav-link:hover,.main-nav .nav-link.active{color:#fff}
.main-nav .nav-link:hover::after,.main-nav .nav-link.active::after{transform:scaleX(1)}
.cart-pill{background:var(--grad-amber);color:#1a2233;border-radius:999px;font-size:.72rem;font-weight:800;padding:.05rem .45rem;position:relative;top:-10px;left:-8px;box-shadow:0 2px 6px rgba(212,160,23,.5)}
.search-wrap .form-control,.search-wrap .form-select{border-color:var(--line)}
.search-wrap .form-control:focus{border-color:var(--pop-purple);box-shadow:0 0 0 .2rem rgba(123,63,242,.15)}

/* ---- Category sidebar ---- */
.cat-list .list-group-item{border:0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;transition:background .15s, padding-left .15s}
.cat-list .list-group-item:hover{background:#f2f0ff;padding-left:1.1rem}
.cat-list .list-group-item.active{background:linear-gradient(90deg,#f0ecff,#fff);color:var(--gctu-navy);font-weight:700;border-left:4px solid var(--pop-purple)}
.cat-list .badge{background:var(--bg-soft);color:var(--muted)}

/* ---- Product cards ---- */
.product-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;height:100%;position:relative;
  transition:box-shadow .2s ease,transform .2s ease;display:flex;flex-direction:column}
.product-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-amber);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.product-card:hover{box-shadow:0 18px 40px rgba(43,26,110,.16);transform:translateY(-5px)}
.product-card:hover::before{transform:scaleX(1)}
.product-thumb{aspect-ratio:1/1;background:linear-gradient(135deg,#f5f7fb,#eef0ff);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.product-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.product-card:hover .product-thumb img{transform:scale(1.06)}
.product-thumb .ph-ico{font-size:3rem;color:#b9c1e0}
.zoom-hint{position:absolute;bottom:12px;right:12px;width:40px;height:40px;border-radius:50%;
  background:rgba(0,32,96,.85);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:zoom-in;font-size:1.1rem;box-shadow:0 4px 12px rgba(0,0,0,.2);transition:transform .15s, background .15s}
.zoom-hint:hover{background:var(--gctu-amber);color:#1a2233;transform:scale(1.08)}
.variant-thumb{width:60px;height:60px;padding:2px;background:#fff;overflow:hidden;cursor:pointer;
  border:2px solid var(--line)!important;border-radius:10px;transition:border-color .15s, transform .15s}
.variant-thumb img{width:100%;height:100%;object-fit:cover;border-radius:7px}
.variant-thumb:hover{transform:translateY(-2px)}
.variant-thumb.active{border-color:var(--gctu-amber)!important;box-shadow:0 4px 12px rgba(212,160,23,.35)}
.product-badge{position:absolute;top:10px;left:10px;font-size:.68rem;font-weight:800;text-transform:uppercase;letter-spacing:.5px;
  padding:.28rem .6rem;border-radius:8px;box-shadow:0 4px 10px rgba(0,0,0,.12)}
.badge-fresher{background:var(--grad-amber);color:#1a2233}
.badge-out{background:linear-gradient(120deg,#e0245e,#ff5a8a);color:#fff}
.product-body{padding:1rem;text-align:center;flex:1;display:flex;flex-direction:column}
.product-body .cat{font-size:.72rem;color:var(--pop-purple);text-transform:uppercase;letter-spacing:.5px;font-weight:700}
.product-body .title{font-size:1rem;font-weight:700;color:var(--ink);margin:.25rem 0 .4rem;min-height:2.4em}
.product-body .price{color:var(--gctu-navy);font-size:1.2rem;font-weight:800}
.stock-badge{font-size:.72rem;font-weight:700;border-radius:999px;padding:.15rem .55rem}
.stock-in{background:#e0f7ea;color:#0a9d47}
.stock-low{background:#fff1de;color:#c47b00}
.stock-out{background:#ffe4ec;color:#e0245e}

/* ---- Hero ---- */
.hero{background:var(--grad-hero);color:#fff;border-radius:22px;overflow:hidden;position:relative;box-shadow:0 20px 50px rgba(43,26,110,.3)}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(212,160,23,.4),transparent 70%)}
.hero::before{content:"";position:absolute;left:-40px;bottom:-80px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,138,.35),transparent 70%)}
.hero .badge-amber{background:var(--grad-amber);color:#1a2233;font-weight:800}
.service-tile{border:1px solid var(--line);border-radius:14px;padding:1.1rem;background:#fff;transition:transform .18s, box-shadow .18s}
.service-tile:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(43,26,110,.12)}
.service-tile i{background:var(--grad-hero);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Section heading accent */
.section-title{position:relative;display:inline-block}
.section-title::after{content:"";position:absolute;left:0;bottom:-8px;width:52px;height:4px;border-radius:4px;background:var(--grad-amber)}

/* ---- Footer ---- */
.site-footer{background:linear-gradient(120deg,var(--gctu-navy),#241a5e);color:#c9d3ea}
.site-footer a{color:#c9d3ea;transition:color .15s}
.site-footer a:hover{color:var(--gctu-amber)}
.site-footer h6{color:#fff;text-transform:uppercase;letter-spacing:1px;font-size:.85rem}

/* ---- Misc ---- */
.page-head{background:linear-gradient(90deg,#f0ecff,#f5f7fb);border-bottom:1px solid var(--line)}
.qr-box{background:#fff;border:2px dashed var(--gctu-amber);border-radius:14px;padding:20px;display:inline-block}
.status-chip{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:.28rem .6rem;border-radius:999px}
.st-pending{background:#fff1de;color:#c47b00}
.st-paid{background:#e4f0ff;color:#1451a3}
.st-ready{background:#efe7ff;color:#6a35d6}
.st-collected{background:#e0f7ea;color:#0a9d47}
.st-cancelled{background:#f0f1f4;color:#6b7590}
.st-refunded{background:#ffe4ec;color:#e0245e}

/* Entrance animation for grids */
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.product-card{animation:fadeUp .4s ease both}