:root{
  --primary:#c8102e;      /* Işık kırmızısı */
  --primary-dark:#9e0c24;
  --dark:#1f2937;
  --gray:#6b7280;
  --light:#f3f4f6;
  --border:#e5e7eb;
  --green:#16a34a;
  --amber:#d97706;
  --radius:8px;
  --shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--dark);background:var(--light);line-height:1.5;font-size:15px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:.55rem 1rem;border:none;border-radius:var(--radius);
  background:var(--primary);color:#fff;cursor:pointer;font-size:.9rem;font-weight:600;
  text-align:center;transition:background .15s}
.btn:hover{background:var(--primary-dark);text-decoration:none;color:#fff}
.btn-sm{padding:.35rem .7rem;font-size:.8rem}
.btn-outline{background:#fff;color:var(--dark);border:1px solid var(--border)}
.btn-outline:hover{background:var(--light);color:var(--dark)}
.btn-danger{background:#dc2626}
.btn-block{display:block;width:100%}

/* ---------- Forms ---------- */
label{display:block;font-weight:600;font-size:.85rem;margin:.6rem 0 .25rem}
input,select,textarea{width:100%;padding:.55rem .7rem;border:1px solid var(--border);
  border-radius:var(--radius);font-size:.9rem;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary)}
textarea{min-height:90px;resize:vertical}
.row{display:flex;gap:1rem;flex-wrap:wrap}
.row>*{flex:1;min-width:160px}

/* ---------- Alerts ---------- */
.alert{padding:.7rem 1rem;border-radius:var(--radius);margin-bottom:1rem;font-size:.9rem}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}

/* ---------- Top bar ---------- */
.topbar{background:var(--dark);color:#fff;padding:.6rem 0}
.topbar .inner{max-width:1200px;margin:0 auto;padding:0 1rem;display:flex;
  align-items:center;gap:1rem}
.brand{font-size:1.25rem;font-weight:800;color:#fff;white-space:nowrap}
.brand span{color:var(--primary)}
.searchbar{flex:1;display:flex}
.searchbar input{border-radius:var(--radius) 0 0 var(--radius)}
.searchbar button{border-radius:0 var(--radius) var(--radius) 0;border:none}
.topbar-actions{display:flex;align-items:center;gap:.75rem;white-space:nowrap}
.topbar-actions a{color:#fff}
.cart-badge{background:var(--primary);border-radius:999px;padding:.05rem .45rem;
  font-size:.75rem;font-weight:700}

/* ---------- Layout: content + right sidebar ---------- */
.container{max-width:1200px;margin:1.25rem auto;padding:0 1rem;
  display:grid;grid-template-columns:260px 1fr;gap:1.25rem}
.main{order:2;min-width:0}
.sidebar{order:1}
@media(max-width:880px){.container{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow)}
.card .card-head{padding:.75rem 1rem;border-bottom:1px solid var(--border);font-weight:700}
.card .card-body{padding:1rem}

/* ---------- Category menu (sidebar) ---------- */
.catmenu{list-style:none}
.catmenu>li{border-bottom:1px solid var(--border)}
.catmenu>li:last-child{border-bottom:none}
.catmenu a{display:block;padding:.55rem 1rem;color:var(--dark);font-weight:600}
.catmenu a:hover{background:var(--light);text-decoration:none;color:var(--primary)}
.catmenu .sub{list-style:none}
.catmenu .sub a{padding-left:1.75rem;font-weight:400;font-size:.88rem;color:var(--gray)}

/* ---------- Product grid ---------- */
.page-title{font-size:1.3rem;margin-bottom:1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:1rem}
.product{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.product .thumb{height:150px;background:var(--light);display:flex;align-items:center;
  justify-content:center;overflow:hidden}
.product .thumb img{height:100%;object-fit:cover;width:100%}
.product .thumb .ph{color:#cbd5e1;font-size:2.5rem}
.product .body{padding:.7rem;display:flex;flex-direction:column;gap:.35rem;flex:1}
.product .name{font-weight:600;font-size:.9rem;color:var(--dark);min-height:2.5em}
.product .sku{font-size:.72rem;color:var(--gray)}
.product .price{margin-top:auto}
.product .price .old{text-decoration:line-through;color:var(--gray);font-size:.8rem}
.product .price .now{color:var(--primary);font-weight:800;font-size:1.05rem}
.product .add{display:flex;gap:.4rem;margin-top:.4rem}
.product .add input{width:56px;text-align:center;padding:.4rem}
.stock-out{color:#dc2626;font-size:.78rem;font-weight:600}

/* ---------- Tables ---------- */
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:.6rem .75rem;text-align:left;border-bottom:1px solid var(--border);font-size:.88rem}
th{background:var(--light);font-size:.78rem;text-transform:uppercase;letter-spacing:.03em;color:var(--gray)}
tbody tr:hover{background:#fafafa}
.text-right{text-align:right}
.text-center{text-align:center}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.72rem;font-weight:700}
.badge-gray{background:var(--light);color:var(--gray)}
.badge-green{background:#dcfce7;color:#166534}
.badge-amber{background:#fef3c7;color:#92400e}
.badge-red{background:#fee2e2;color:#991b1b}
.badge-blue{background:#dbeafe;color:#1e40af}

/* ---------- Totals box ---------- */
.totals{margin-left:auto;max-width:340px}
.totals .line{display:flex;justify-content:space-between;padding:.35rem 0}
.totals .grand{border-top:2px solid var(--dark);margin-top:.4rem;padding-top:.6rem;
  font-size:1.15rem;font-weight:800}

/* ---------- Admin layout ---------- */
.admin-wrap{display:flex;min-height:100vh}
.admin-side{width:230px;background:var(--dark);color:#cbd5e1;flex-shrink:0}
.admin-side .logo{padding:1rem;font-weight:800;color:#fff;border-bottom:1px solid #374151}
.admin-side .logo span{color:var(--primary)}
.admin-side nav a{display:block;padding:.7rem 1rem;color:#cbd5e1;border-left:3px solid transparent}
.admin-side nav a:hover,.admin-side nav a.active{background:#111827;color:#fff;
  border-left-color:var(--primary);text-decoration:none}
.admin-main{flex:1;min-width:0;display:flex;flex-direction:column}
.admin-top{background:#fff;border-bottom:1px solid var(--border);padding:.8rem 1.25rem;
  display:flex;justify-content:space-between;align-items:center}
.admin-content{padding:1.25rem;flex:1}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.5rem}
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:1rem;box-shadow:var(--shadow)}
.stat .num{font-size:1.8rem;font-weight:800;color:var(--primary)}
.stat .lbl{color:var(--gray);font-size:.85rem}
.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;gap:1rem;flex-wrap:wrap}

/* ---------- Auth ---------- */
.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--dark),#374151);padding:1rem}
.auth-box{background:#fff;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.3);
  width:100%;max-width:400px;padding:2rem}
.auth-box .brand{color:var(--dark);text-align:center;font-size:1.5rem;margin-bottom:.25rem}
.auth-box .sub{text-align:center;color:var(--gray);font-size:.85rem;margin-bottom:1.5rem}
.muted{color:var(--gray);font-size:.85rem}
.mt{margin-top:1rem}.mb{margin-bottom:1rem}