:root{
  --brand:#f27a1a;          /* Trendyol turuncu tonu */
  --brand-dark:#d9660c;
  --sidebar-w:250px;
}
*{box-sizing:border-box}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;margin:0}
.btn-primary{--bs-btn-bg:var(--brand);--bs-btn-border-color:var(--brand);--bs-btn-hover-bg:var(--brand-dark);--bs-btn-hover-border-color:var(--brand-dark);--bs-btn-active-bg:var(--brand-dark)}
a{text-decoration:none}
.text-brand{color:var(--brand)!important}
.bg-brand{background:var(--brand)!important;color:#fff}

/* ---------- Auth ---------- */
.auth-body{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#f27a1a 0%,#c0392b 100%)}
.auth-container{width:100%;max-width:420px;padding:20px}
.auth-card{background:#fff;border-radius:16px;padding:36px 32px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.auth-brand{text-align:center;margin-bottom:24px}
.auth-brand i{font-size:44px;color:var(--brand)}
.auth-brand h1{font-size:24px;font-weight:700;margin:10px 0 2px}
.auth-brand p{color:#888;margin:0;font-size:14px}
.auth-demo{text-align:center;margin-top:18px;padding-top:16px;border-top:1px solid #eee}

/* ---------- Layout ---------- */
.app-wrapper{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:#1e2430;color:#c7ccd6;position:fixed;top:0;left:0;bottom:0;
  display:flex;flex-direction:column;transition:transform .25s;z-index:1040}
[data-bs-theme=dark] .sidebar{background:#12161f}
.sidebar-brand{display:flex;align-items:center;justify-content:center;gap:10px;padding:16px 18px;font-weight:700;color:#fff;font-size:17px;
  border-bottom:1px solid rgba(255,255,255,.08);min-height:64px}
.sidebar-brand i{color:var(--brand);font-size:22px}
/* Koyu menüde siyah yazılı logoların net görünmesi için beyaz zemin */
.sidebar-logo{height:44px;max-width:190px;width:auto;object-fit:contain;
  background:#fff;padding:6px 12px;border-radius:10px;box-shadow:0 2px 6px rgba(0,0,0,.25)}
.sidebar-nav{flex:1;overflow-y:auto;padding:12px 10px}
.sidebar-nav .nav-link{display:flex;align-items:center;gap:12px;color:#aeb4c0;padding:11px 14px;border-radius:8px;margin-bottom:2px;font-size:14.5px}
.sidebar-nav .nav-link i{width:20px;text-align:center;font-size:16px}
.sidebar-nav .nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.sidebar-nav .nav-link.active{background:var(--brand);color:#fff}
/* Açılır "Ayarlar" grubu */
.sidebar-nav .nav-parent{cursor:pointer}
.sidebar-nav .nav-parent .caret{font-size:11px;transition:transform .2s}
.sidebar-nav .nav-parent[aria-expanded="true"] .caret{transform:rotate(180deg)}
.sidebar-nav .nav-parent.active-parent{color:#fff;background:rgba(255,255,255,.05)}
.sidebar-nav .nav-sub{padding-left:40px;font-size:13.5px}
.sidebar-nav .nav-sub i{font-size:14px}
.sidebar-footer{padding:12px 20px;border-top:1px solid rgba(255,255,255,.08);color:#6b7280;font-size:12px}

.main-content{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}
.topbar{height:62px;background:#fff;border-bottom:1px solid #e9ecef;display:flex;align-items:center;gap:14px;padding:0 20px;position:sticky;top:0;z-index:1020}
[data-bs-theme=dark] .topbar{background:#1a1f2b;border-color:#2b3240}
.page-title{font-size:18px;font-weight:600;margin:0;flex:1}
.topbar-right{display:flex;align-items:center;gap:8px}
.btn-icon{width:38px;height:38px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;background:transparent;color:inherit}
.btn-icon:hover{background:rgba(0,0,0,.05)}
[data-bs-theme=dark] .btn-icon:hover{background:rgba(255,255,255,.08)}
.notif-badge{position:absolute;top:2px;right:2px;font-size:9px;padding:2px 5px;border-radius:10px}
.notif-dropdown{width:300px;max-height:380px;overflow-y:auto}
.user-btn{display:flex;align-items:center;gap:10px;border:0;background:transparent;color:inherit}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600}
.user-meta{display:flex;flex-direction:column;line-height:1.1;text-align:left}
.user-meta small{color:#8a909c;font-size:11px}

.content{padding:22px;flex:1}

/* ---------- Cards / stats ---------- */
.stat-card{border:0;border-radius:14px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.stat-card .card-body{display:flex;align-items:center;gap:16px;padding:18px 20px}
.stat-icon{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;flex-shrink:0}
.stat-value{font-size:26px;font-weight:700;line-height:1}
.stat-label{color:#8a909c;font-size:13px;margin-top:3px}
.card{border-radius:14px}

/* ---------- Barcode scan ---------- */
.scan-box{background:#fff;border-radius:14px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
[data-bs-theme=dark] .scan-box,[data-bs-theme=dark] .stat-card,[data-bs-theme=dark] .card,[data-bs-theme=dark] .topbar{background:#1a1f2b}
.scan-input{font-size:22px;padding:16px;text-align:center;letter-spacing:1px;border:2px dashed var(--brand)}
.scan-product{display:flex;gap:18px;align-items:center;padding:16px;border-radius:12px;background:#fff8f2}
[data-bs-theme=dark] .scan-product{background:#241d14}
.scan-product img,.scan-product .noimg{width:90px;height:90px;object-fit:cover;border-radius:10px;background:#eee;display:flex;align-items:center;justify-content:center;color:#aaa;font-size:28px}
.diff-pos{color:#198754;font-weight:700}
.diff-neg{color:#dc3545;font-weight:700}
.diff-zero{color:#6c757d;font-weight:700}

/* ---------- Responsive ---------- */
@media(max-width:991px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main-content{margin-left:0}
}
.table-responsive{border-radius:12px}