:root {
    --primary: #2c6b2f;
    --primary-dark: #1e4e20;
    --primary-light: #4caf50;
    --secondary: #f8f9fa;
    --accent: #ff9800;
    --danger: #f44336;
    --success: #4caf50;
    --warning: #ff9800;
    --info: #2196f3;
    --dark: #343a40;
    --light: #f8f9fa;
    --gray: #6c757d;
    --gray-light: #e9ecef;
    --gray-dark: #495057;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --radius: 10px;
    --transition: all 0.3s ease;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: #f5f7fa;
    color: var(--dark);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 1.6;
}

.login-container {
    background-color: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
    padding: 32px;
    margin: 20px;
}

.login-header {
    text-align: center;
    margin-bottom: 24px;
}

.login-logo {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.login-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
}

.login-subtitle {
    font-size: 1rem;
    color: var(--gray-dark);
    margin-top: 8px;
}

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

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-dark);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--gray-light);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 5px rgba(44, 107, 47, 0.3);
}

.login-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.login-btn:hover {
    background-color: var(--primary-dark);
    transform: scale(1.02);
}

.error-message {
    color: var(--danger);
    font-size: 0.9rem;
    margin-bottom: 16px;
    background-color: rgba(244, 67, 54, 0.05);
    padding: 12px;
    border-radius: var(--radius);
    text-align: center;
}

.register-link {
    text-align: center;
    margin-top: 16px;
    font-size: 0.9rem;
}

.register-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.register-link a:hover {
    text-decoration: underline;
}

.notification-card {
    background-color: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin: 20px;
    padding: 24px;
    width: 100%;
    max-width: 400px;
}

.notification-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 16px;
}

.notification-list {
    list-style: none;
}

.notification-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-light);
}

.notification-item:last-child {
    border-bottom: none;
}

.notification-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 1rem;
    background-color: rgba(33, 150, 243, 0.1);
    color: var(--info);
}

.notification-content {
    flex: 1;
}

.notification-message {
    font-size: 0.95rem;
    color: var(--dark);
    margin-bottom: 4px;
}

.notification-meta {
    font-size: 0.85rem;
    color: var(--gray-dark);
}

.notification-unread {
    font-weight: 600;
    background-color: rgba(33, 150, 243, 0.05);
}

.mark-read-btn {
    background-color: var(--info);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.mark-read-btn:hover {
    background-color: #1976d2;
    transform: scale(1.05);
}

.mark-read-btn:disabled {
    background-color: var(--gray);
    cursor: not-allowed;
    transform: none;
}

@media (max-width: 576px) {
    .login-container, .notification-card {
        margin: 10px;
        padding: 20px;
    }
    
    .login-title {
        font-size: 1.5rem;
    }
    
    .notification-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .notification-icon {
        margin-bottom: 8px;
    }
    
    .mark-read-btn {
        margin-top: 8px;
        width: 100%;
        text-align: center;
    }
}