* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, "Segoe UI", Arial, sans-serif;
    background: #f4f5f7;
    color: #1a1a1a;
}

/* ---- Login ---- */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: #111827;
}
.login-kutu {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    width: 320px;
}
.login-kutu h1 {
    font-size: 20px;
    margin-bottom: 20px;
    text-align: center;
}
.login-kutu label {
    display: block;
    font-size: 13px;
    margin-top: 12px;
    margin-bottom: 4px;
    color: #555;
}
.login-kutu input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}
.login-kutu button {
    width: 100%;
    margin-top: 20px;
    padding: 10px;
    background: #111827;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}
.hata-mesaji {
    background: #fee2e2;
    color: #991b1b;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 10px;
}

/* ---- Panel Genel Layout ---- */
.panel-govde {
    display: flex;
    min-height: 100vh;
}
.sidebar {
    width: 220px;
    background: #111827;
    color: #fff;
    padding: 20px;
}
.sidebar-logo {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 30px;
}
.sidebar nav a {
    display: block;
    color: #cbd5e1;
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 4px;
    font-size: 14px;
}
.sidebar nav a:hover, .sidebar nav a.aktif {
    background: #1f2937;
    color: #fff;
}
.panel-icerik {
    flex: 1;
    padding: 30px;
}

/* ---- Genel bileşenler ---- */
.sayfa-basligi {
    font-size: 22px;
    margin-bottom: 20px;
}
.kart {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}
.buton {
    display: inline-block;
    background: #111827;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
}
.buton:hover { background: #1f2937; }
.buton-ikincil {
    background: #fff;
    color: #111827;
    border: 1px solid #ddd;
}
.tablo {
    width: 100%;
    border-collapse: collapse;
}
.tablo th, .tablo td {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}
.tablo th {
    color: #6b7280;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
}
.form-grup {
    margin-bottom: 14px;
}
.form-grup label {
    display: block;
    font-size: 13px;
    color: #555;
    margin-bottom: 4px;
}
.form-grup input, .form-grup textarea, .form-grup select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}