:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #25d366;
    --warning-bg: #fff7ed;
    --warning-border: #fdba74;
    --warning-text: #9a3412;
    --campaign-primary: #7e22ce;
    --campaign-secondary: #581c87;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
    font-family: system-ui, -apple-system, sans-serif;
}

.calculator-container {
    max-width: 900px;
    margin: 2rem auto;
    background: white;
    border-radius: 24px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.calculator-section {
    margin-bottom: 2rem;
}

.header {
    color: white;
    padding: 2.5rem;
    text-align: center;
}

.header.standard {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.header.campaign {
    background: linear-gradient(135deg, var(--campaign-primary) 0%, var(--campaign-secondary) 100%);
}

.info-cards-container {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--warning-bg);
}

.info-card {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid var(--warning-border);
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.info-card i {
    font-size: 24px;
    color: var(--warning-text);
    margin-bottom: 0.5rem;
}

.info-card h5 {
    color: var(--warning-text);
    font-weight: 600;
    margin: 0;
    font-size: 1rem;
}

.form-section {
    padding: 2rem;
}

.button-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn-calculate, .btn-reset {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-calculate.standard {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.btn-calculate.campaign {
    background: linear-gradient(135deg, var(--campaign-primary) 0%, var(--campaign-secondary) 100%);
}

.btn-calculate {
    border: none;
    color: white;
}

.btn-reset {
    background: #f1f5f9;
    border: 2px solid #e2e8f0;
    color: #64748b;
}

.btn-calculate:hover, .btn-reset:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-reset:hover {
    background: #e2e8f0;
}

.result-section {
    display: none;
    background: #f8fafc;
    border-top: 2px solid #e2e8f0;
    padding: 2rem;
    animation: slideDown 0.5s ease-out;
}

.whatsapp-btn {
    background: var(--success-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.2);
}

.whatsapp-btn:hover {
    background: #128C7E;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 211, 102, 0.3);
}

.form-control, .form-select {
    padding: 0.8rem;
    font-size: 1.1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.result-card {
    background: white;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.campaign-badge {
    background: var(--campaign-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.summary-section {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.divider {
    height: 2px;
    background: #e2e8f0;
    margin: 3rem 0;
    position: relative;
}

.divider::after {
    content: "VEYA";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 0 1rem;
    color: #64748b;
    font-weight: 600;
}

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

@media (max-width: 768px) {
    .calculator-container {
        margin: 1rem;
    }

    .info-cards-container {
        flex-direction: column;
    }

    .button-group {
        flex-direction: column;
    }

    .btn-calculate, .btn-reset {
        width: 100%;
    }

    .form-section {
        padding: 1.5rem;
    }
    
    .header {
        padding: 1.5rem;
    }
}