/* Color Palette */
:root {
    --black: #000000;
    --white: #FFFFFF;
    --red: #EB3E34;
    --grey: #231D35;
    --blue: #5131F6;
    --aqua: #3ADFDB;
    --light-teal: #CA9EEA;
    --pale-aqua: #EBF5F7;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 400;
    color: var(--black);
    background-color: var(--white);
    line-height: 1.6;
    font-size: 16px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* Typography Weights */
h1 {
    font-weight: 800;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--black);
}

h2 {
    font-weight: 600;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--grey);
}

h3 {
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--black);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--grey);
    margin-bottom: 1rem;
    text-align: center;
}

.disclaimer {
    background: rgba(235, 62, 52, 0.1);
    border: 1px solid var(--red);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 2rem;
    text-align: left;
}

.disclaimer p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--grey);
}

/* Form Styling */
.form-container {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(35, 29, 53, 0.1);
    text-align: center;
}

.battery-form {
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.required {
    color: var(--red);
}

.form-input,
.form-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    transition: border-color 0.3s ease;
    background-color: var(--white);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--aqua);
    box-shadow: 0 0 0 3px rgba(58, 223, 219, 0.1);
}

.form-input::placeholder {
    color: #8b949e;
    font-style: italic;
}

.submit-btn {
    background-color: var(--red);
    color: var(--white);
    border: none;
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: 'Plus Jakarta Sans', sans-serif;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 1rem;
}

.submit-btn:hover {
    background-color: #d63429;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(235, 62, 52, 0.3);
}

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

.calculate-btn {
    background-color: var(--blue);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    min-width: 160px;
}

.calculate-btn:hover {
    background-color: #4025d4;
}

.email-btn {
    background-color: var(--aqua);
    color: var(--black);
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    min-width: 180px;
}

.email-btn:hover {
    background-color: #2cc2be;
}

.error {
    color: var(--red);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* Immediate Results Display */
.results-container {
    background: var(--pale-aqua);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
    border: 2px solid var(--aqua);
}

.results-container h2 {
    color: var(--black);
    margin-bottom: 1.5rem;
    text-align: center;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(58, 223, 219, 0.3);
}

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

.result-item .label {
    font-weight: 600;
    color: var(--grey);
}

.result-item .value {
    font-weight: 700;
    color: var(--black);
    font-size: 1.1rem;
}

.customer-info {
    background: var(--pale-aqua);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.calculation-results {
    margin-bottom: 2rem;
}

.result-card {
    background: var(--white);
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.result-card.primary {
    border-color: var(--aqua);
    background: linear-gradient(135deg, var(--pale-aqua) 0%, var(--white) 100%);
}

.result-card.highlight {
    border-color: var(--blue);
    background: linear-gradient(135deg, rgba(81, 49, 246, 0.1) 0%, var(--white) 100%);
}

.result-card.total {
    border-color: var(--red);
    background: linear-gradient(135deg, rgba(235, 62, 52, 0.1) 0%, var(--white) 100%);
}

.result-card.info {
    border-color: var(--grey);
    background: rgba(35, 29, 53, 0.05);
}

.value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--black);
    margin: 0.5rem 0;
}

.value.rebate {
    color: var(--blue);
}

.rebate-note {
    color: var(--blue);
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.disclaimer {
    background: var(--pale-aqua);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.disclaimer ul {
    list-style: none;
    padding-left: 0;
}

.disclaimer li {
    padding: 0.25rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.disclaimer li:before {
    content: "•";
    color: var(--aqua);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.notification {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
}

.notification.success {
    background-color: rgba(58, 223, 219, 0.1);
    border: 2px solid var(--aqua);
    color: var(--black);
}

.notification.warning {
    background-color: rgba(235, 62, 52, 0.1);
    border: 2px solid var(--red);
    color: var(--black);
}

.actions {
    text-align: center;
}

.btn-secondary {
    background-color: var(--grey);
    color: var(--white);
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-family: 'Plus Jakarta Sans', sans-serif;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #1a1628;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(35, 29, 53, 0.3);
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .form-container,
    .results-container {
        padding: 1.5rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .value {
        font-size: 2rem;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 5px;
    }
    
    .form-container,
    .results-container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .value {
        font-size: 1.8rem;
    }
    
    .submit-btn {
        padding: 14px 24px;
        font-size: 1rem;
    }
}

/* Iframe optimization */
@media (max-width: 600px) {
    body {
        font-size: 14px;
    }
    
    .form-input,
    .form-select {
        padding: 10px 12px;
        font-size: 0.95rem;
    }
}

/* High contrast mode for accessibility */
@media (prefers-contrast: high) {
    .form-input,
    .form-select {
        border-width: 3px;
    }
    
    .result-card {
        border-width: 3px;
    }
}