/* Variables */
:root {
    --primary-color: #6c63ff;
    --secondary-color: #ff6584;
    --accent-color: #43cea2;
    --background-color: #f8f9fa;
    --card-color: #ffffff;
    --text-color: #333333;
    --text-light: #777777;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --border-radius: 12px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --mobile-breakpoint: 768px;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1, h2, h3, h4 {
    margin-bottom: 15px;
    font-weight: 600;
}

button {
    cursor: pointer;
    border: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

button:hover {
    opacity: 0.9;
}

ul {
    list-style: none;
}

/* Header & Navigation */
header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

nav ul {
    display: flex;
    gap: 20px;
}

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

.nav-link:hover {
    background-color: rgba(108, 99, 255, 0.1);
}

.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.summary-card {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.summary-card h4 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 8px;
}

.summary-card p {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    margin: 50px auto;
    padding: 25px;
    position: relative;
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

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

.radio-group {
    display: flex;
    gap: 20px;
}

.submit-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 25px;
    width: 100%;
    font-size: 1rem;
    font-weight: 500;
    margin-top: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px auto;
    }
}

/* Mobile Toggle and Responsive Styles */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px;
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    
    nav#main-nav {
        display: none;
        width: 100%;
        margin-top: 15px;
    }
    
    nav#main-nav.active {
        display: block;
    }
    
    nav#main-nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav#main-nav ul li {
        margin: 10px 0;
        width: 100%;
        text-align: center;
    }
    
    header {
        flex-direction: column;
        align-items: stretch;
    }
}