:root{
  --primary:#2f6fed;
  --primary-dark:#1f4fbb;
  --bg:#f4f6fb;
  --card-bg:#ffffff;
  --text:#1c2333;
  --muted:#6b7280;
  --border:#e5e8f0;
  --danger:#e53e3e;
  --success:#0a7a3d;
  --radius:10px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:'Segoe UI', Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
}
a{text-decoration:none;color:inherit;}

/* ---------- Genel uygulama iskeleti ---------- */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  width:240px;
  background:#151b2e;
  color:#fff;
  display:flex;
  flex-direction:column;
  flex-shrink:0;
  padding:20px 0;
}
.sidebar-logo{
  font-size:20px;
  font-weight:700;
  padding:0 20px 20px;
  border-bottom:1px solid #2a3350;
  margin-bottom:10px;
}
.sidebar-logo span{display:block;font-size:12px;font-weight:400;color:#9aa4c2;}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1;padding:0 10px;}
.sidebar nav a{
  padding:11px 14px;
  border-radius:8px;
  color:#c7cde0;
  font-size:14.5px;
}
.sidebar nav a:hover{background:#232b47;color:#fff;}
.sidebar nav a.active{background:var(--primary);color:#fff;}
.sidebar-footer{padding:16px 20px 0;border-top:1px solid #2a3350;margin-top:10px;}
.kullanici-bilgi{display:flex;flex-direction:column;margin-bottom:10px;}
.kullanici-bilgi strong{font-size:14px;}
.kullanici-bilgi span{font-size:12px;color:#9aa4c2;}
.cikis-link{font-size:13px;color:#ff8a8a;}

.content{flex:1;padding:28px 34px;max-width:1400px;}

/* ---------- Genel öğeler ---------- */
.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;flex-wrap:wrap;gap:12px;}
.page-header h1{font-size:22px;margin:0;}
.page-header p{color:var(--muted);margin:4px 0 0;font-size:13.5px;}

.card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  margin-bottom:20px;
}
.card h2, .card h3{margin-top:0;}

.grid{display:grid;gap:18px;}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}}

.stat-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px 20px;
}
.stat-card .label{font-size:13px;color:var(--muted);margin-bottom:6px;}
.stat-card .value{font-size:24px;font-weight:700;}
.stat-card.danger .value{color:var(--danger);}
.stat-card.success .value{color:var(--success);}

table{width:100%;border-collapse:collapse;font-size:14px;}
table th, table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle;}
table th{color:var(--muted);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em;}
table tr:hover td{background:#fafbff;}

.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;}
.renk-noktasi{display:inline-block;width:11px;height:11px;border-radius:50%;margin-right:6px;vertical-align:middle;border:1px solid rgba(0,0,0,.15);}
.renk-etiket{display:inline-flex;align-items:center;padding:3px 10px 3px 6px;border-radius:20px;font-size:12.5px;font-weight:600;background:#f1f2f6;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 16px;border-radius:8px;border:none;cursor:pointer;
  font-size:14px;font-weight:600;background:var(--primary);color:#fff;
}
.btn:hover{background:var(--primary-dark);}
.btn.btn-sm{padding:6px 12px;font-size:13px;}
.btn.btn-outline{background:#fff;border:1px solid var(--border);color:var(--text);}
.btn.btn-outline:hover{background:#f4f6fb;}
.btn.btn-danger{background:var(--danger);}
.btn.btn-danger:hover{background:#c53030;}
.btn.btn-success{background:var(--success);}

.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;}
.form-group .hint{font-size:12px;color:var(--muted);margin-top:4px;}
input[type=text], input[type=password], input[type=number], input[type=date],
input[type=file], select, textarea{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;
  font-size:14px;font-family:inherit;background:#fff;color:var(--text);
}
textarea{resize:vertical;min-height:80px;}
input:focus, select:focus, textarea:focus{outline:none;border-color:var(--primary);}

.flash{padding:12px 16px;border-radius:8px;margin-bottom:20px;font-size:14px;}
.flash-ok{background:#e6f7ed;color:var(--success);}
.flash-hata{background:#fdeaea;color:var(--danger);}

.actions{display:flex;gap:8px;flex-wrap:wrap;}

.empty-state{text-align:center;padding:40px 20px;color:var(--muted);}

.tag-row{display:flex;gap:6px;flex-wrap:wrap;}

/* ---------- Login sayfası ---------- */
.login-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#151b2e,#2f6fed);
}
.login-card{
  background:#fff;border-radius:16px;padding:38px 34px;width:100%;max-width:380px;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.login-card h1{font-size:20px;margin:0 0 4px;}
.login-card p.sub{color:var(--muted);font-size:13.5px;margin:0 0 22px;}
.login-card .btn{width:100%;padding:11px;font-size:15px;margin-top:6px;}

/* Modal */
.modal-overlay{
  position:fixed;inset:0;background:rgba(15,20,35,.5);
  display:flex;align-items:center;justify-content:center;z-index:100;
  padding:20px;
}
.modal-box{background:#fff;border-radius:12px;padding:24px;max-width:520px;width:100%;max-height:90vh;overflow-y:auto;}