/**
 * Carbon Footprint Calculator Styles
 * @author Amit Haridas, ConcreteInfo
 */

/* Overlay */
.carbon-calculator__overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: none;
    padding: var(--spacing-4);
    overflow-y: auto;
    animation: fadeIn 200ms ease;
}

.carbon-calculator__overlay.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

/* Modal */
.carbon-calculator__modal {
    background-color: var(--bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
    max-width: 700px;
    margin: var(--spacing-6) auto;
    max-height: calc(100vh - var(--spacing-12));
    overflow-y: auto;
}

.dark .carbon-calculator__modal {
    background-color: var(--bg-secondary);
}

/* Header */
.carbon-calculator__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4) var(--spacing-5);
    border-bottom: 1px solid var(--border-subtle);
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1;
}

.carbon-calculator__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.carbon-calculator__close {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.carbon-calculator__close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Body */
.carbon-calculator__body {
    padding: var(--spacing-5);
}

/* Sections */
.carbon-calculator__section {
    margin-bottom: var(--spacing-5);
}

.carbon-calculator__section-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0 0 var(--spacing-3);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.carbon-calculator__section-title i {
    color: #22c55e;
}

/* Grids */
.carbon-calculator__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
}

.carbon-calculator__materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2);
}

@media (max-width: 767.98px) {
    .carbon-calculator__grid,
    .carbon-calculator__materials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 479.98px) {
    .carbon-calculator__materials-grid {
        grid-template-columns: 1fr;
    }
}

/* Fields */
.carbon-calculator__field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.carbon-calculator__field label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.carbon-calculator__field input,
.carbon-calculator__field select {
    height: 2rem;
    padding: var(--spacing-1-5) var(--spacing-2-5);
    font-size: var(--font-size-sm);
    font-family: var(--font-family-sans);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.carbon-calculator__field input:focus,
.carbon-calculator__field select:focus {
    outline: none;
    border-color: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

/* Calculate Button */
.carbon-calculator__btn-calculate {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-5);
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    transition: all var(--transition-fast);
    margin-top: var(--spacing-4);
}

.carbon-calculator__btn-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(34, 197, 94, 0.3);
}

/* Results */
.carbon-calculator__results {
    margin-top: var(--spacing-5);
    padding-top: var(--spacing-5);
    border-top: 1px solid var(--border-subtle);
}

/* Score Card */
.carbon-calculator__score-card {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-radius: var(--radius-xl);
    padding: var(--spacing-5);
    text-align: center;
    margin-bottom: var(--spacing-5);
}

.dark .carbon-calculator__score-card {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
}

.carbon-calculator__score-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-3);
}

.carbon-calculator__rating {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background-color: #22c55e;
    color: white;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

.carbon-calculator__score-header span:last-child {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.carbon-calculator__total-emissions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-1);
}

.carbon-calculator__emissions-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
}

.carbon-calculator__emissions-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.carbon-calculator__per-m3 {
    font-size: var(--font-size-base);
    color: #16a34a;
    font-weight: var(--font-weight-medium);
    margin-top: var(--spacing-2);
}

/* Comparison */
.carbon-calculator__comparison {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-5);
}

@media (max-width: 479.98px) {
    .carbon-calculator__comparison {
        grid-template-columns: 1fr;
    }
}

.carbon-calculator__comparison-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-3);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.carbon-calculator__comparison-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.carbon-calculator__comparison-value {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.carbon-calculator__comparison--positive {
    color: #22c55e;
}

.carbon-calculator__comparison--negative {
    color: #ef4444;
}

/* Breakdown */
.carbon-calculator__breakdown {
    margin-bottom: var(--spacing-5);
}

.carbon-calculator__breakdown h5 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 var(--spacing-3);
    color: var(--text-primary);
}

.carbon-calculator__chart {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.carbon-calculator__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 1.5rem;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.carbon-calculator__bar::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: var(--bar-width, 50%);
    background: linear-gradient(90deg, #22c55e, #4ade80);
    border-radius: var(--radius-sm);
    transition: width var(--transition-normal);
}

.carbon-calculator__bar-label {
    position: relative;
    left: var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    z-index: 1;
}

.carbon-calculator__bar-value {
    position: relative;
    right: var(--spacing-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

/* Saved */
.carbon-calculator__saved {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    background-color: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: #16a34a;
    margin-bottom: var(--spacing-5);
}

.carbon-calculator__saved i {
    font-size: var(--font-size-lg);
}

/* Recommendations */
.carbon-calculator__recommendations {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
}

.carbon-calculator__recommendations h5 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 var(--spacing-3);
    color: var(--text-primary);
}

.carbon-calculator__recommendations ul {
    margin: 0;
    padding-left: var(--spacing-5);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.carbon-calculator__recommendations li {
    margin-bottom: var(--spacing-2);
    line-height: var(--line-height-normal);
}

.carbon-calculator__recommendations li:last-child {
    margin-bottom: 0;
}

/* Responsive */
@media (max-width: 767.98px) {
    .carbon-calculator__overlay {
        padding: var(--spacing-2);
    }

    .carbon-calculator__modal {
        margin: var(--spacing-2) 0;
        max-height: calc(100vh - var(--spacing-4));
    }

    .carbon-calculator__body {
        padding: var(--spacing-4);
    }

    .carbon-calculator__score-card {
        padding: var(--spacing-4);
    }
}