:root {
    --primary: #4361ee;
    --secondary: #3f37c9;
    --success: #4cc9f0;
    --info: #4895ef;
    --warning: #f72585;
    --danger: #e63946;
    --light: #f8f9fa;
    --dark: #212529;
    --gradient: linear-gradient(135deg, #4361ee 0%, #3a0ca3 100%);
}

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

.auth-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.main-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    margin-top: 20px;
    margin-bottom: 20px;
}

.navbar-custom {
    background: var(--gradient) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 20px;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.card-header {
    background: var(--gradient);
    color: white;
    border-radius: 15px 15px 0 0 !important;
    padding: 1.5rem;
    border-bottom: none;
}

.btn-primary {
    background: var(--gradient);
    border: none;
    border-radius: 10px;
    padding: 10px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #4cc9f0 0%, #4895ef 100%);
    border: none;
    border-radius: 10px;
}

.btn-warning {
    background: linear-gradient(135deg, #f72585 0%, #b5179e 100%);
    border: none;
    border-radius: 10px;
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #e63946 0%, #d00000 100%);
    border: none;
    border-radius: 10px;
}

.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.table {
    border-radius: 15px;
    overflow: hidden;
}

.table th {
    background: var(--primary);
    color: white;
    border: none;
    padding: 15px;
}

.table td {
    padding: 15px;
    vertical-align: middle;
    border-color: #e9ecef;
}

.badge {
    border-radius: 10px;
    padding: 8px 12px;
    font-weight: 500;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.stats-card {
    text-align: center;
    padding: 20px;
}

.stats-number {
    font-size: 2.5rem;
    font-weight: bold;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.modal-content {
    border-radius: 20px;
    border: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

#qrcodeContainer {
    display: flex;
    justify-content: center;
    padding: 20px;
}

.action-buttons .btn {
    margin: 0 2px;
    border-radius: 8px;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo i {
    font-size: 4rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-brand i {
    margin-right: 10px;
}

.user-info {
    color: white;
    margin-right: 15px;
}