/* =============================================
   Theme: Blue Professional (Default)
   Icons: fa-solid | Font: Instrument Sans
   ============================================= */

:root {
  --c-primary: #1E40AF; --c-primary-light: #3B82F6; --c-primary-dark: #1E3A8A;
  --c-secondary: #F59E0B; --c-success: #10B981; --c-danger: #EF4444; --c-warning: #F59E0B;
  --c-bg: #F8FAFC; --c-surface: #FFFFFF; --c-text: #1E293B;
  --c-text-muted: #64748B; --c-border: #E2E8F0; --c-shadow: rgba(0,0,0,.06);
  --c-footer-bg: #1E293B; --c-footer-text: #CBD5E1; --c-footer-muted: #64748B;
  --c-placeholder: #E2E8F0; --c-placeholder-text: #94A3B8;
  --card-radius: 10px; --btn-radius: 8px;
}

*,*::before,*::after{box-sizing:border-box}
body{font-family:'Instrument Sans',sans-serif;background:var(--c-bg);color:var(--c-text);margin:0;min-height:100vh;display:flex;flex-direction:column}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}

/* Header */
header{background:var(--c-surface);border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:100}
header .inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px}
header .logo{font-size:1.25rem;font-weight:700;color:var(--c-primary);text-decoration:none;white-space:nowrap}
header nav{display:flex;align-items:center;gap:20px}
header nav a{color:var(--c-text);text-decoration:none;font-size:.9rem;font-weight:500;white-space:nowrap;transition:color .15s}
header nav a:hover{color:var(--c-primary)}
header nav a.btn, .btn{display:inline-block;padding:10px 20px;border-radius:var(--btn-radius);font-weight:600;font-size:.9rem;text-decoration:none;cursor:pointer;border:none;font-family:inherit}
header nav a.btn{background:var(--c-primary);color:#fff;padding:8px 16px}
header nav a.btn:hover{background:var(--c-primary-light);color:#fff}
.btn-primary{background:var(--c-primary);color:#fff}.btn-primary:hover{background:var(--c-primary-light)}
.btn-outline{border:2px solid var(--c-primary);color:var(--c-primary);background:transparent}.btn-outline:hover{background:var(--c-primary);color:#fff}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--card-radius);overflow:hidden;box-shadow:0 2px 8px var(--c-shadow);transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 8px 25px var(--c-shadow);transform:translateY(-3px)}
.card img{width:100%;height:200px;object-fit:cover;background:var(--c-placeholder)}
.card .body{padding:16px}
.card .title{font-weight:600;font-size:1.05rem;margin:0 0 4px;color:var(--c-text)}
.card .specs{color:var(--c-text-muted);font-size:.85rem;margin-bottom:4px;display:flex;gap:12px;flex-wrap:wrap}
.card .price{font-size:1.25rem;font-weight:700;color:var(--c-primary);margin-top:8px;display:flex;justify-content:space-between;align-items:center}

/* Badges */
.badge{display:inline-block;padding:3px 8px;border-radius:6px;font-size:.7rem;font-weight:600;text-transform:uppercase}
.badge-featured{background:var(--c-primary);color:#fff}
.badge-new{background:var(--c-success);color:#fff}
.badge-sold{background:var(--c-danger);color:#fff}

/* Footer */
footer{background:var(--c-footer-bg);color:var(--c-footer-text);margin-top:auto;padding:32px 0}
footer .inner{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
footer h4{color:#fff;margin:0 0 8px;font-size:.95rem}
footer a{color:#94A3B8;text-decoration:none;font-size:.85rem;display:block;padding:2px 0;transition:color .15s}
footer a:hover{color:#fff}
footer .bottom{border-top:1px solid #334155;margin-top:24px;padding-top:16px;text-align:center;font-size:.8rem;color:var(--c-footer-muted)}

/* Filters */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filter-bar select,.filter-bar input{padding:8px 12px;border:1px solid var(--c-border);border-radius:8px;background:var(--c-surface);font-size:.85rem;color:var(--c-text);font-family:inherit}
.filter-bar select:focus,.filter-bar input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,64,175,.1)}

/* Stats */
.stats{display:flex;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.stat-card{flex:1;min-width:160px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:12px;padding:20px;text-align:center}

.stat-card .num{font-size:2rem;font-weight:700;color:var(--c-primary)}
.stat-card .label{color:var(--c-text-muted);font-size:.85rem;margin-top:4px}

/* Pagination — professional navigation */
.pagination{display:flex;justify-content:center;gap:6px;margin:40px 0;flex-wrap:wrap;align-items:center}
.pagination a,.pagination span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border:1px solid var(--c-border);border-radius:10px;text-decoration:none;color:var(--c-text);font-size:.85rem;font-weight:500;transition:all .2s;background:var(--c-surface)}
.pagination a:hover{border-color:var(--c-primary);color:var(--c-primary);background:color-mix(in srgb,var(--c-primary) 5%,transparent);transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.pagination .active,.pagination span.active{background:var(--c-primary);color:#fff;border-color:var(--c-primary);font-weight:600;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.pagination .disabled,.pagination span[aria-disabled=true]{opacity:.4;pointer-events:none}
.pagination svg{width:18px;height:18px}

/* Hero */
.hero{padding:60px 0 40px;text-align:center;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-light));color:#fff}
.hero h1{font-size:2.2rem;font-weight:700;margin:0 0 8px}
.hero p{color:rgba(255,255,255,.85);font-size:1.05rem;margin:0 0 24px}
.hero .search-hero{display:flex;max-width:600px;margin:0 auto;gap:8px}
.hero .search-hero input{flex:1;padding:14px 18px;border:none;border-radius:12px;font-size:1rem;font-family:inherit}
.hero .search-hero input:focus{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.3)}
.hero .search-hero button{padding:14px 24px;background:var(--c-secondary);color:#1E293B;border:none;border-radius:12px;font-weight:700;font-size:1rem;cursor:pointer;font-family:inherit}

/* Detail page */
.detail-grid{display:grid;grid-template-columns:1fr 380px;gap:24px}
.gallery img{width:100%;border-radius:12px;max-height:500px;object-fit:cover}
.gallery .thumbs{display:flex;gap:8px;margin-top:8px;overflow-x:auto}
.gallery .thumbs img{width:80px;height:60px;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent}
.gallery .thumbs img.active,.gallery .thumbs img:hover{border-color:var(--c-primary)}
.spec-item{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--c-border);font-size:.9rem}
.spec-item .key{color:var(--c-text-muted)}
.specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}

/* Utility */
.text-muted{color:var(--c-text-muted)}
a{color:var(--c-primary);text-decoration:none}a:hover{color:var(--c-primary-light)}
.transition-theme{transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease}
body, .card, .btn-primary, .btn-outline, a, header{transition:background-color .3s ease,color .3s ease,border-color .3s ease,box-shadow .3s ease}

@media(max-width:900px){.detail-grid{grid-template-columns:1fr}}
@media(max-width:768px){header nav{display:none}}