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

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Auth Container */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    color: #667eea;
    font-weight: bold;
    margin-bottom: 30px;
}

.login-box .form-group label {
    font-weight: 600;
    color: #333;
}

.login-box .form-control {
    border-radius: 8px;
    border: 2px solid #e0e0e0;
    padding: 12px 15px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.login-box .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.login-box .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    padding: 12px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.login-box .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* Admin Dashboard */
#adminDashboard {
    background: #f5f6fa;
    min-height: 100vh;
}

.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-size: 22px;
    font-weight: bold;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

.card-title {
    color: #333;
    font-weight: 600;
}

/* Repo Grid Cards */
.repo-card {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.repo-card:hover {
    border-color: #667eea;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.2);
    transform: translateY(-5px);
}

.repo-card.selected {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    border-color: #667eea;
}

.repo-card-checkbox {
    position: absolute;
    top: 15px;
    right: 15px;
}

.repo-card h5 {
    color: #333;
    font-weight: 600;
    margin-bottom: 10px;
    word-break: break-word;
}

.repo-card p {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.repo-meta {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: #999;
    flex-wrap: wrap;
}

.repo-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Tabs */
.nav-tabs {
    border-bottom: 2px solid #e0e0e0;
}

.nav-tabs .nav-link {
    color: #666;
    font-weight: 500;
    border: none;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: #667eea;
    border-bottom: 3px solid #667eea;
}

.nav-tabs .nav-link.active {
    color: #667eea;
    border-bottom: 3px solid #667eea;
    background: transparent;
}

/* Table */
.table {
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

.table thead {
    background: #f5f6fa;
    font-weight: 600;
    color: #333;
}

.table tbody tr:hover {
    background: #f9f9f9;
}

.table-responsive {
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border: none;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(17, 153, 142, 0.3);
}

.btn-secondary {
    background: #999;
    border: none;
}

.btn-outline-light:hover {
    background: white;
    color: #333;
}

/* Loading Spinner */
.spinner-border {
    width: 50px;
    height: 50px;
    border-width: 4px;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
    padding: 15px 20px;
    font-weight: 500;
}

.alert-danger {
    background: #ffebee;
    color: #c62828;
}

.alert-success {
    background: #e8f5e9;
    color: #2e7d32;
}

/* Responsive */
@media (max-width: 768px) {
    .login-box {
        padding: 30px 20px;
    }

    .container-fluid {
        padding-left: 10px;
        padding-right: 10px;
    }

    .row {
        margin-left: -10px;
        margin-right: -10px;
    }

    .col-md-3,
    .col-md-9 {
        padding-left: 10px;
        padding-right: 10px;
    }

    .btn-lg {
        padding: 10px 15px;
        font-size: 14px;
        margin: 5px;
    }

    .table {
        font-size: 13px;
    }

    .table th,
    .table td {
        padding: 10px 5px;
    }
}

/* Custom Checkbox */
.custom-checkbox {
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    user-select: none;
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.custom-checkbox input:checked ~ .checkmark {
    background: #667eea;
    border-color: #667eea;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: white;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 5px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.custom-checkbox input:checked ~ .checkmark:after {
    display: block;
}