/* ============================================
   PROFESYONEL ADMIN PANEL TASARIM SİSTEMİ
   ============================================ */

/* === TEMEL AYARLAR === */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* === HEADER TASARIMI === */
.dashboard-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 70px;
}

.header-left {
    display: flex;
    align-items: center;
}

.dashboard-title {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.header-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-menu li {
    margin: 0;
    padding: 0;
}

.nav-item {
    display: inline-block;
    padding: 10px 20px;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 14px;
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    text-align: center;
    min-width: 110px;
}

.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    text-decoration: none;
    color: white;
}

.nav-item-logout {
    background-color: rgba(220, 53, 69, 0.85);
    border-color: rgba(220, 53, 69, 0.9);
}

.nav-item-logout:hover {
    background-color: rgba(200, 35, 51, 0.95);
    border-color: #c82333;
    color: white;
}

/* ASP.NET Button kontrolü için özel stil */
input[type="submit"].nav-item,
button.nav-item {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 14px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    cursor: pointer;
    margin: 0;
    display: inline-block;
    text-align: center;
    min-width: 110px;
}

input[type="submit"].nav-item:hover,
button.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    color: white;
}

input[type="submit"].nav-item-logout,
button.nav-item-logout {
    background-color: rgba(220, 53, 69, 0.85);
    border-color: rgba(220, 53, 69, 0.9);
}

input[type="submit"].nav-item-logout:hover,
button.nav-item-logout:hover {
    background-color: rgba(200, 35, 51, 0.95);
    border-color: #c82333;
    color: white;
}

/* === SAYFA İÇERİĞİ === */
.content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin: 20px auto;
    max-width: 1400px;
}

/* === SAYFA BAŞLIKLARI === */
.page-header {
    background: white;
    padding: 20px 30px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.page-header h1 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: #2c3e50;
}

.page-header-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* === BUTONLAR === */
.btn {
    background-color: #667eea;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.btn:hover {
    background-color: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
    text-decoration: none;
    color: white;
}

.btn-success {
    background-color: #28a745;
}

.btn-success:hover {
    background-color: #218838;
    box-shadow: 0 4px 8px rgba(40, 167, 69, 0.3);
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
    box-shadow: 0 4px 8px rgba(220, 53, 69, 0.3);
}

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
    box-shadow: 0 4px 8px rgba(108, 117, 125, 0.3);
}

/* === MESAJLAR === */
.message {
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 6px;
    border-left: 4px solid;
}

.message-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #28a745;
}

.message-error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #dc3545;
}

/* === RESPONSIVE === */

/* Tablet ve küçük ekranlar (max-width: 1024px) */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 20px;
    }
    
    .content {
        padding: 25px;
    }
    
    .page-header {
        padding: 20px 25px;
    }
}

/* Tablet (max-width: 768px) */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .header-container {
        flex-direction: column;
        padding: 15px 20px;
        gap: 15px;
        min-height: auto;
    }
    
    .header-left {
        width: 100%;
    }
    
    .dashboard-title {
        font-size: 20px;
        text-align: center;
    }
    
    .header-nav {
        width: 100%;
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 8px;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-item,
    input[type="submit"].nav-item,
    button.nav-item {
        width: 100%;
        min-width: auto;
    }
    
    .content {
        padding: 20px;
        margin: 10px;
        border-radius: 6px;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        padding: 15px 20px;
        gap: 15px;
    }
    
    .page-header h1 {
        font-size: 20px;
        width: 100%;
    }
    
    .page-header-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .page-header-actions .btn {
        width: 100%;
        text-align: center;
    }
    
    .btn {
        padding: 10px 15px;
        font-size: 14px;
    }
    
    .message {
        padding: 12px 15px;
        font-size: 13px;
    }
}

/* Küçük telefonlar (max-width: 480px) */
@media (max-width: 480px) {
    body {
        padding: 5px;
    }
    
    .header-container {
        padding: 12px 15px;
        gap: 12px;
    }
    
    .dashboard-title {
        font-size: 18px;
    }
    
    .nav-item,
    input[type="submit"].nav-item,
    button.nav-item {
        padding: 10px 15px;
        font-size: 13px;
    }
    
    .content {
        padding: 15px;
        margin: 5px;
    }
    
    .page-header {
        padding: 12px 15px;
    }
    
    .page-header h1 {
        font-size: 18px;
    }
    
    .btn {
        padding: 10px 12px;
        font-size: 13px;
        width: 100%;
    }
    
    .message {
        padding: 10px 12px;
        font-size: 12px;
    }
}

/* Çok küçük ekranlar (max-width: 360px) */
@media (max-width: 360px) {
    .dashboard-title {
        font-size: 16px;
    }
    
    .content {
        padding: 12px;
    }
    
    .page-header {
        padding: 10px 12px;
    }
    
    .page-header h1 {
        font-size: 16px;
    }
}