:root {
    --calc-bg: #f8f9fa;
    --calc-card-bg: #ffffff;
    --calc-border: #e2e8f0;
    --calc-text: #1a202c;
    --calc-text-muted: #64748b;
    --calc-primary: #2563eb;
    --calc-primary-hover: #1d4ed8;
    --calc-success: #059669;
    --calc-warning: #d97706;
    --calc-accent: #0f172a;
    --calc-input-bg: #f1f5f9;
    --calc-shadow: 0 1px 3px rgba(0,0,0,0.08);
    --calc-shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
    --calc-radius: 8px;
    --calc-radius-lg: 12px;
}

.calculator-section {
    background: var(--calc-bg);
    padding: 60px 0;
    min-height: 100vh;
}

.calculator-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.calculator-header {
    text-align: center;
    margin-bottom: 48px;
}

.calculator-header h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--calc-accent);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.calculator-header p {
    font-size: 16px;
    color: var(--calc-text-muted);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

.calculator-badge {
    display: inline-block;
    background: var(--calc-accent);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 12px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.calculator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

@media (max-width: 768px) {
    .calculator-layout {
        grid-template-columns: 1fr;
    }
}

.calculator-card {
    background: var(--calc-card-bg);
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius-lg);
    padding: 32px;
    box-shadow: var(--calc-shadow);
}

.calculator-card-header {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--calc-border);
}

.calculator-card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--calc-accent);
    margin: 0 0 4px 0;
}

.calculator-card-header p {
    font-size: 14px;
    color: var(--calc-text-muted);
    margin: 0;
}

.calc-form-group {
    margin-bottom: 24px;
}

.calc-form-group:last-child {
    margin-bottom: 0;
}

.calc-form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--calc-text-muted);
    margin-bottom: 8px;
}

.calc-form-group select,
.calc-form-group input {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--calc-text);
    background: var(--calc-input-bg);
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius);
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
    -webkit-appearance: none;
}

.calc-form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

.calc-form-group select:focus,
.calc-form-group input:focus {
    outline: none;
    border-color: var(--calc-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.calc-form-group input::placeholder {
    color: var(--calc-text-muted);
}

.calc-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 480px) {
    .calc-form-row {
        grid-template-columns: 1fr;
    }
}

.calc-btn-primary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0;
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    color: #1a1a1a;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: var(--calc-radius);
    cursor: pointer;
    margin-top: 8px;
    overflow: hidden;
    position: relative;
}

.calc-btn-primary > span:first-child {
    flex: 1;
    padding: 16px 24px;
    text-align: center;
    position: relative;
    z-index: 2;
    transition: color 0.4s ease;
}

.calc-btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 100%;
    background: #f5a623;
    transition: width 0.4s ease;
    z-index: 1;
}

.calc-btn-primary:hover::before {
    width: 100%;
    left: 0;
    right: auto;
}

.calc-btn-primary:hover > span:first-child {
    color: #fff;
}

.calc-btn-primary .btn-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 100%;
    background: #f5a623;
    padding: 16px 14px;
    position: relative;
    z-index: 2;
}

.calc-btn-primary .btn-arrow svg {
    stroke: #1a1a1a;
    transition: transform 0.3s ease, stroke 0.3s ease;
}

.calc-btn-primary:hover .btn-arrow svg {
    transform: rotate(45deg);
    stroke: #fff;
}

.calc-btn-primary:hover .btn-arrow {
    background: transparent;
}

.calc-btn-primary:active {
    transform: scale(0.98);
}

.results-card {
    background: var(--calc-card-bg);
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius-lg);
    overflow: hidden;
    box-shadow: var(--calc-shadow);
}

.results-header {
    background: var(--calc-accent);
    color: #fff;
    padding: 24px 32px;
}

.results-header h2 {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 4px 0;
}

.results-header p {
    font-size: 13px;
    opacity: 0.7;
    margin: 0;
}

.results-body {
    padding: 32px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--calc-border);
}

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

.result-item-label {
    font-size: 14px;
    color: var(--calc-text-muted);
}

.result-item-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--calc-text);
}

.result-item-value.primary {
    color: var(--calc-primary);
}

.result-item-value.success {
    color: var(--calc-success);
}

.result-highlight {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: var(--calc-radius);
    padding: 24px;
    margin-top: 24px;
    text-align: center;
}

.result-highlight-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--calc-primary);
    margin-bottom: 8px;
}

.result-highlight-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--calc-accent);
    line-height: 1;
}

.result-highlight-note {
    font-size: 13px;
    color: var(--calc-text-muted);
    margin-top: 12px;
}

.results-footer {
    padding: 20px 32px;
    background: var(--calc-bg);
    border-top: 1px solid var(--calc-border);
}

.results-footer p {
    font-size: 12px;
    color: var(--calc-text-muted);
    margin: 0;
    text-align: center;
}

.calc-info-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: var(--calc-radius);
    padding: 16px;
    margin-top: 24px;
}

.calc-info-note svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--calc-warning);
}

.calc-info-note p {
    font-size: 13px;
    color: #92400e;
    margin: 0;
    line-height: 1.5;
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--calc-text-muted);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state p {
    font-size: 14px;
    margin: 0;
}

.calc-btn-secondary {
    width: 100%;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    color: var(--calc-text-muted);
    background: transparent;
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius);
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 12px;
}

.calc-btn-secondary:hover {
    border-color: var(--calc-text-muted);
    color: var(--calc-text);
}

.input-with-unit {
    position: relative;
}

.input-with-unit input {
    padding-right: 50px;
}

.input-unit {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: var(--calc-text-muted);
    pointer-events: none;
}

.results-content {
    padding: 0;
}

.result-section {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--calc-border);
}

.result-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.result-section h3 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--calc-text-muted);
    margin: 0 0 16px 0;
}

.result-grid {
    display: grid;
    gap: 12px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--calc-input-bg);
    border-radius: var(--calc-radius);
    border-bottom: none;
}

.result-label {
    font-size: 13px;
    color: var(--calc-text-muted);
}

.result-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--calc-text);
}

.result-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.result-badge-low {
    background: #dcfce7;
    color: #166534;
}

.result-badge-medium {
    background: #fef3c7;
    color: #92400e;
}

.result-badge-high {
    background: #fee2e2;
    color: #991b1b;
}

.result-badge-standard {
    background: #e0f2fe;
    color: #0369a1;
}

.result-badge-enhanced {
    background: #fef3c7;
    color: #92400e;
}

.result-badge-coastal {
    background: #dbeafe;
    color: #1e40af;
}

.result-explanation {
    background: #f0f9ff;
    border-radius: var(--calc-radius);
    padding: 16px;
    border: none;
    margin-bottom: 16px;
}

.result-explanation h3 {
    margin-bottom: 12px;
}

.result-explanation p {
    font-size: 14px;
    color: var(--calc-text);
    line-height: 1.6;
    margin: 0;
}

.result-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--calc-radius);
    padding: 16px;
    margin-top: 8px;
}

.result-disclaimer svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: #dc2626;
}

.result-disclaimer p {
    font-size: 12px;
    color: #991b1b;
    margin: 0;
    line-height: 1.5;
}

.lead-capture-section {
    margin-top: 32px;
}

.lead-capture-card {
    background: var(--calc-card-bg);
    border: 1px solid var(--calc-border);
    border-radius: var(--calc-radius-lg);
    padding: 32px;
    box-shadow: var(--calc-shadow);
}

.lead-capture-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--calc-accent);
    margin: 0 0 24px 0;
    text-align: center;
}

.lead-capture-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}

@media (max-width: 480px) {
    .lead-capture-buttons {
        grid-template-columns: 1fr;
    }
}

.result-warning {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: #fef2f2;
    border: 2px solid #dc2626;
    border-radius: var(--calc-radius);
    padding: 20px;
    margin-bottom: 24px;
}

.result-warning svg {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    color: #dc2626;
}

.result-warning strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: #991b1b;
    margin-bottom: 4px;
}

.result-warning p {
    font-size: 13px;
    color: #b91c1c;
    margin: 0;
    line-height: 1.5;
}

.result-value-warning {
    color: #dc2626;
    font-size: 13px;
}