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

:root {
    --primary-color: #1e3c72;
    --secondary-color: #2a5298;
    --accent-color: #f4b400;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-bg: #f8f9fa;
    --dark-text: #333;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #f0f2f5;
    color: var(--dark-text);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.header-content h1 {
    font-size: 1.8rem;
    margin-bottom: 5px;
    color: white;
}

.header-content p {
    font-size: 0.9rem;
    color: white;
    opacity: 0.95;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--dark-text);
}

.btn-primary:hover {
    background: #e6a800;
    transform: translateY(-2px);
}

.btn-outline {
    background: #dd000099;
    border: 1px solid white;
    color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

.form-area .btn-outline {
    background: white;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.form-area .btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #218838;
}

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 200px 1fr 250px;
    gap: 20px;
}

/* Sidebar Steps */
.sidebar {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.step-indicator {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.step {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
}

.step:hover {
    background: var(--light-bg);
}

.step.active {
    background: var(--primary-color);
    color: white;
}

.step-number {
    width: 30px;
    height: 30px;
    background: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step.active .step-number {
    background: var(--accent-color);
    color: var(--dark-text);
}

/* Form Area */
.form-area {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.step-content {
    display: none;
}

.step-content.active {
    display: block;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 20px 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-weight: 500;
    color: var(--dark-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.readonly-field {
    background-color: var(--light-bg);
    cursor: not-allowed;
}

/* Specifications Cards */
.specs-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 20px 0;
    max-height: 600px;
    overflow-y: auto;
    padding-right: 10px;
}

.spec-card {
    background: var(--light-bg);
    border-radius: 8px;
    padding: 15px;
    border: 1px solid var(--border-color);
}

.spec-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.category-selector {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.category-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.category-option:hover {
    background: white;
}

.category-option input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.cat-label {
    font-weight: 500;
    min-width: 80px;
}

.cat-desc {
    font-size: 0.85rem;
    color: #666;
}

.adjustment-field {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.adjustment-field input {
    width: 80px;
    padding: 5px;
}

/* Extras Sections */
.extras-section {
    background: var(--light-bg);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.extras-section h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Live Panel */
.live-panel {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow);
    height: fit-content;
}

.live-panel h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
}

.live-value {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    padding: 8px;
    background: var(--light-bg);
    border-radius: 5px;
}

.live-value.highlight {
    background: var(--accent-color);
    color: var(--dark-text);
    font-weight: bold;
    margin-top: 15px;
}

/* Results Section */
.results-summary {
    margin-bottom: 30px;
}

.final-value {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    color: white !important;
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.final-value h3 {
    color: white !important;
    font-size: 1.3rem;
}

.final-value .value {
    font-size: 2.5rem;
    font-weight: bold;
    margin-top: 10px;
    color: white !important;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.result-card {
    background: var(--light-bg);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.result-card h4 {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.result-card .value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* Tables */
.breakdown-section {
    margin: 30px 0;
}

.breakdown-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.breakdown-table th,
.breakdown-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.breakdown-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 500;
}

.breakdown-table tfoot tr {
    background: var(--light-bg);
    font-weight: bold;
}

/* Certifications */
.certifications-section {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 15px;
}

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

/* Signatures */
.signatures-section {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

.signature-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.signature-placeholder {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

/* Form Navigation */
.form-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

/* Hidden Elements */
.hidden {
    display: none !important;
}

.nested {
    padding: 15px;
    background: var(--light-bg);
    border-radius: 5px;
    margin-top: 10px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 50px auto;
    padding: 20px;
    border-radius: 10px;
    width: 80%;
    max-width: 900px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.close {
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #666;
}

.close:hover {
    color: var(--danger-color);
}

/* History Table */
.history-table {
    width: 100%;
    border-collapse: collapse;
}

.history-table th,
.history-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.history-table th {
    background: var(--primary-color);
    color: white;
}

.history-table tr:hover {
    background: var(--light-bg);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.85rem;
    background: var(--primary-color);
    color: white;
}

.btn-sm:hover {
    background: var(--secondary-color);
}

/* Print Styles */
.print-header {
    display: none;
}

.print-only {
    display: none;
}

@media print {
    @page {
        margin: 10mm;
    }

    .print-header {
        display: block !important;
    }
    
    .print-only {
        display: block !important;
    }
    
    .final-value {
        background: white !important;
        border: 2px solid var(--primary-color) !important;
    }
    
    .final-value h3 {
        color: black !important;
    }
    
    .final-value .value {
        color: var(--primary-color) !important;
    }
    
    a[href]::after {
        content: none !important;
    }

    header,
    .header,
    .header-actions,
    .sidebar,
    .live-panel,
    .form-navigation,
    .modal,
    .btn,
    .signatures-section:not(.print-only) {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        overflow: hidden !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    #step5 > h2:first-of-type {
        display: none !important;
    }
    
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .form-area {
        box-shadow: none;
        padding: 0;
    }
    
    .results-summary,
    .breakdown-section {
        page-break-inside: avoid;
    }
    
    .result-grid {
        grid-template-columns: repeat(3, 1fr);
        page-break-inside: avoid;
    }
    
    .breakdown-table {
        border: 1px solid black;
        page-break-inside: avoid;
    }
    
    .step-content:not(.active) {
        display: none !important;
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
    
    .result-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .specs-container {
        grid-template-columns: 1fr;
    }
    
    .checkbox-group {
        grid-template-columns: 1fr;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
    }
}