* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0077b5;
    --primary-dark: #005885;
    --primary-light: #00a0dc;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-bg: #f3f2ef;
    --white: #ffffff;
    --dark-text: #000000;
    --gray-text: #666666;
    --light-gray: #e9ecef;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-hover: 0 8px 24px rgba(0,119,181,0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* LinkedIn Logo */
.linkedin-logo {
    width: 48px;
    height: 48px;
    fill: var(--primary-color);
    margin-bottom: 20px;
}

.linkedin-logo-small {
    width: 32px;
    height: 32px;
    fill: var(--primary-color);
    margin-right: 12px;
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

.logo-container h1 {
    margin-top: 10px;
    color: var(--primary-color);
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* Login Sayfası */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0077b5 0%, #005885 50%, #00a0dc 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.login-container {
    width: 100%;
    max-width: 440px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-box {
    background: var(--white);
    padding: 50px 40px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    backdrop-filter: blur(10px);
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-box h2 {
    color: var(--dark-text);
    margin-bottom: 30px;
    font-size: 22px;
    font-weight: 500;
    text-align: center;
}

.login-note {
    margin-top: 25px;
    font-size: 13px;
    color: var(--gray-text);
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    margin-bottom: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
}

.logo {
    color: var(--primary-color);
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.3px;
    margin: 0;
}

.nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-link {
    color: var(--gray-text);
    text-decoration: none;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

.nav-link.logout {
    color: var(--danger-color);
}

.nav-link.logout:hover {
    background-color: #fee;
    color: var(--danger-color);
}

.user-info {
    color: var(--gray-text);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    background: var(--light-bg);
    border-radius: 20px;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 24px 48px;
}

.container h1 {
    color: var(--dark-text);
    margin-bottom: 32px;
    font-size: 36px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.section {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
}

.section h2 {
    margin-bottom: 24px;
    color: var(--dark-text);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

/* İstatistik Kartları */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: linear-gradient(135deg, var(--white) 0%, #fafafa 100%);
    padding: 28px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.stat-card:hover::before {
    transform: scaleY(1);
}

.stat-icon {
    font-size: 48px;
    line-height: 1;
    opacity: 0.9;
}

.stat-content {
    flex: 1;
}

.stat-content h3 {
    font-size: 13px;
    color: var(--gray-text);
    margin-bottom: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    letter-spacing: -1px;
}

/* Formlar */
.account-form {
    max-width: 900px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-text);
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
    background: var(--white);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0,119,181,0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* Butonlar */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-align: center;
    letter-spacing: 0.3px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 4px rgba(0,119,181,0.2);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(0,119,181,0.3);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--light-gray);
    color: var(--dark-text);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
    box-shadow: 0 2px 4px rgba(220,53,69,0.2);
}

.btn-danger:hover {
    background-color: #c82333;
    box-shadow: 0 4px 12px rgba(220,53,69,0.3);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
}

/* Tablolar */
.table-container {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
    background: var(--white);
}

.data-table thead {
    background: linear-gradient(to bottom, #fafafa, var(--light-bg));
}

.data-table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: var(--dark-text);
    border-bottom: 2px solid var(--border-color);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background-color: #f8f9fa;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.text-center {
    text-align: center;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-active {
    background-color: #d4edda;
    color: #155724;
}

.badge-inactive {
    background-color: #fff3cd;
    color: #856404;
}

.badge-banned {
    background-color: #f8d7da;
    color: #721c24;
}

/* Alert */
.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    border-left: 4px solid;
    font-weight: 500;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .nav {
        width: 100%;
        flex-wrap: wrap;
    }
    
    .nav-link {
        flex: 1;
        text-align: center;
        min-width: 100px;
    }
    
    .user-info {
        width: 100%;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 12px 8px;
    }
    
    .container {
        padding: 20px 16px 32px;
    }
    
    .section {
        padding: 24px 20px;
    }
    
    .container h1 {
        font-size: 28px;
    }
    
    .login-box {
        padding: 40px 30px;
    }
}

@media (max-width: 480px) {
    .logo-container h1 {
        font-size: 22px;
    }
    
    .linkedin-logo {
        width: 40px;
        height: 40px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-number {
        font-size: 28px;
    }
}