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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
}

.notification-card {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.5s ease-out;
}

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

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 10px;
    font-size: 28px;
}

.description {
    text-align: center;
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

.status-box {
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 25px;
}

.status-box.success {
    border-left-color: #28a745;
    background: #d4edda;
}

.status-box.error {
    border-left-color: #dc3545;
    background: #f8d7da;
}

#status-text {
    color: #333;
    font-size: 14px;
    font-weight: 500;
}

.btn-primary {
    width: 100%;
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    font-size: 24px;
}

.notification-list {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid #eee;
}

.notification-list h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 18px;
}

#notifications-container {
    max-height: 300px;
    overflow-y: auto;
}

.notification-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 4px solid #667eea;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification-item h4 {
    color: #333;
    margin-bottom: 5px;
    font-size: 16px;
}

.notification-item p {
    color: #666;
    font-size: 14px;
    margin-bottom: 5px;
}

.notification-time {
    color: #999;
    font-size: 12px;
    font-style: italic;
}

.empty-state {
    text-align: center;
    color: #999;
    padding: 20px;
    font-style: italic;
}