/* Solar Calculator Plugin Styles */
:root {
    --solar-primary: #18af4f;
    --solar-secondary: #867fdf;
    --solar-accent: #15a047;
}

.solar-calculator-widget {
    max-width: 800px;
    margin: 20px auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(24, 175, 79, 0.12);
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

.widget-header {
    background: linear-gradient(135deg, var(--solar-primary) 0%, var(--solar-accent) 100%);
    color: white;
    padding: 20px 24px;
    text-align: center;
}

.widget-header h1 {
    font-size: 1.5em;
    margin: 0 0 4px 0;
    font-weight: 700;
}

.widget-header p {
    font-size: 0.95em;
    margin: 0;
    opacity: 0.9;
}

.widget-body {
    padding: 24px;
}

.progress-bar {
    height: 6px;
    background: #e0e0e0;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 20px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--solar-primary) 0%, var(--solar-secondary) 100%);
    transition: width 0.4s ease;
    width: 0%;
}

.step-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 24px;
    position: relative;
    padding: 0 10px;
}

.step-indicator::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 40px;
    right: 40px;
    height: 2px;
    background: #e0e0e0;
    z-index: 0;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.step-dot {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85em;
    color: #999;
    margin-bottom: 4px;
    transition: all 0.3s;
}

.step-dot.active {
    background: var(--solar-primary);
    color: white;
    transform: scale(1.1);
}

.step-dot.completed {
    background: var(--solar-secondary);
    color: white;
}

.step-label {
    font-size: 0.75em;
    color: #666;
    font-weight: 600;
}

.step {
    display: none;
}

.step.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.question {
    margin-bottom: 20px;
}

.question h2 {
    font-size: 1.35em;
    color: #333;
    margin: 0;
    font-weight: 600;
}

.question p {
    color: #666;
    font-size: 0.95em;
    margin: 6px 0 0 0;
}

/* Compact options grid */
.options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}

.options-compact {
    grid-template-columns: repeat(4, 1fr);
}

.option {
    padding: 16px 12px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    background: white;
}

.option:hover {
    border-color: var(--solar-primary);
    background: #f0fdf4;
}

.option.selected {
    border-color: var(--solar-primary);
    background: var(--solar-primary);
    color: white;
}

.option .label {
    font-weight: 600;
    font-size: 0.95em;
    margin-bottom: 2px;
}

.option .description {
    font-size: 0.8em;
    opacity: 0.7;
}

/* Form rows for side-by-side inputs */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.input-group {
    margin-bottom: 16px;
}

.input-group label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 6px;
    font-size: 0.9em;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 0.95em;
    transition: all 0.2s;
    font-family: inherit;
    box-sizing: border-box;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--solar-primary);
    box-shadow: 0 0 0 3px rgba(24, 175, 79, 0.1);
}

.input-group-inline {
    display: flex;
    align-items: center;
    gap: 12px;
}

.input-group-inline label {
    margin-bottom: 0;
    white-space: nowrap;
}

.input-group-inline input {
    max-width: 120px;
}

.input-group.has-error input,
.input-group.has-error select {
    border-color: #e53935;
    background: #ffebee;
}

.input-group .error-message {
    color: #e53935;
    font-size: 0.8em;
    margin-top: 4px;
    display: none;
}

.input-group.has-error .error-message {
    display: block;
}

.btn {
    background: var(--solar-primary);
    color: white;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    margin-top: 8px;
    font-family: inherit;
}

.btn:hover:not(:disabled) {
    background: var(--solar-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(24, 175, 79, 0.3);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: #f5f5f5;
    color: #333;
    padding: 12px 24px;
}

.btn-secondary:hover:not(:disabled) {
    background: #e0e0e0;
    transform: none;
    box-shadow: none;
}

.btn-cta {
    background: var(--solar-primary);
    font-size: 1.05em;
    padding: 16px 32px;
}

.button-group {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.button-group .btn {
    margin-top: 0;
}

.button-group .btn-secondary {
    flex: 0 0 auto;
    width: auto;
}

.button-group .btn:not(.btn-secondary) {
    flex: 1;
}

/* Results */
.results {
    text-align: center;
}

.results h2 {
    color: #333;
    font-size: 1.5em;
    margin: 0 0 16px 0;
}

.result-highlight {
    background: linear-gradient(135deg, var(--solar-primary) 0%, var(--solar-accent) 100%);
    color: white;
    padding: 24px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.result-highlight h3 {
    font-size: 1em;
    opacity: 0.9;
    margin: 0 0 8px 0;
    font-weight: 500;
}

.result-highlight .big-number {
    font-size: 2.5em;
    font-weight: 700;
    margin: 0;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.result-card {
    background: #f8f9fa;
    padding: 16px 12px;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
}

.result-card h4 {
    color: var(--solar-primary);
    font-size: 0.75em;
    text-transform: uppercase;
    margin: 0 0 6px 0;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.result-card .value {
    font-size: 1.5em;
    font-weight: 700;
    color: #333;
    margin: 0;
}

.result-card .subtitle {
    color: #888;
    font-size: 0.75em;
    margin-top: 2px;
}

.cta-box {
    background: linear-gradient(135deg, var(--solar-secondary) 0%, var(--solar-primary) 100%);
    color: white;
    padding: 24px 20px;
    border-radius: 12px;
    text-align: center;
}

.cta-box h3 {
    font-size: 1.25em;
    margin: 0 0 8px 0;
    font-weight: 600;
}

.cta-box p {
    font-size: 0.95em;
    margin: 0 0 16px 0;
    opacity: 0.9;
}

.cta-box .btn {
    margin-top: 0;
    width: auto;
    display: inline-block;
}

.checkbox-container {
    background: #f0fdf4;
    padding: 14px 16px;
    border-radius: 8px;
    margin: 16px 0;
    border: 1px solid var(--solar-primary);
}

.checkbox-container label {
    display: flex;
    align-items: center;
    cursor: pointer;
    gap: 10px;
}

.checkbox-container input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--solar-primary);
}

.checkbox-container span {
    font-size: 0.9em;
    color: #333;
}

/* Responsive */
@media (max-width: 768px) {
    .solar-calculator-widget {
        margin: 10px;
        border-radius: 12px;
    }

    .widget-body {
        padding: 20px 16px;
    }

    .options,
    .options-compact {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .result-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .button-group .btn-secondary {
        width: 100%;
        order: 2;
    }

    .result-highlight .big-number {
        font-size: 2em;
    }

    .input-group-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .input-group-inline input {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .options,
    .options-compact {
        grid-template-columns: 1fr 1fr;
    }

    .step-label {
        display: none;
    }

    .step-indicator::before {
        left: 25px;
        right: 25px;
    }
}