:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-hover: #f1f5f9;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    z-index: 100;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color, #2563eb);
}

.logo img.client-logo {
    max-height: 40px;
    max-width: 180px;
    object-fit: contain;
    display: block;
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

/* Main Content */
.main-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 0;
    overflow: hidden;
}

/* 3D Viewport */
.viewport-container {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

#canvas3d {
    width: 100%;
    height: 100%;
    display: block;
}

.view-controls {
    position: absolute;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 10;
}

/* iOS-style Day/Night Toggle */
.daynight-toggle {
    position: relative;
}

.daynight-checkbox {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.daynight-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 68px;
    height: 34px;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    border-radius: 34px;
    padding: 3px;
    cursor: pointer;
    position: relative;
    transition: background 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.35), inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

.daynight-checkbox:checked+.daynight-label {
    background: linear-gradient(135deg, #1e293b, #334155);
    box-shadow: 0 2px 8px rgba(30, 41, 59, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.05);
}

/* Sliding Thumb */
.daynight-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 28px;
    height: 28px;
    background: #ffffff;
    border-radius: 50%;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    z-index: 3;
}

.daynight-checkbox:checked+.daynight-label .daynight-thumb {
    transform: translateX(34px);
}

/* Sun Icon */
.daynight-icon--sun {
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    color: #fef3c7;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.daynight-checkbox:checked+.daynight-label .daynight-icon--sun {
    opacity: 1;
}

/* Moon Icon */
.daynight-icon--moon {
    position: absolute;
    right: 9px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.5);
    z-index: 2;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.daynight-checkbox:checked+.daynight-label .daynight-icon--moon {
    opacity: 0;
}

/* Thumb glow effect */
.daynight-label:hover .daynight-thumb {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25), 0 0 0 3px rgba(255, 255, 255, 0.15);
}

.daynight-label:active .daynight-thumb {
    width: 32px;
}

.daynight-checkbox:checked+.daynight-label:active .daynight-thumb {
    transform: translateX(30px);
}

/* Louver Angle Control */
.louver-angle-control {
    position: absolute;
    top: calc(var(--spacing-lg) + 52px);
    left: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    z-index: 10;
    animation: fadeIn 0.3s ease;
}

.louver-angle-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.louver-angle-label {
    font-weight: 600;
    font-size: 0.875rem;
    flex: 1;
}

.louver-angle-value {
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    min-width: 36px;
    text-align: center;
}

.louver-slider-container {
    margin-bottom: var(--spacing-sm);
}

.louver-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: linear-gradient(to right, var(--primary-color) 0%, #e2e8f0 0%);
    outline: none;
    cursor: pointer;
    transition: background 0.1s ease;
}

.louver-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.louver-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.4);
}

.louver-slider::-webkit-slider-thumb:active {
    transform: scale(1.05);
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.louver-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--primary-color);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.louver-slider::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    background: #e2e8f0;
}

.louver-slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 4px;
}

.louver-slider-labels span {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
}


.loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    display: none;
}

.loading-indicator.show {
    display: block;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto var(--spacing-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Configuration Panel */
.config-panel {
    background: var(--surface);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.config-scroll {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.config-scroll::-webkit-scrollbar {
    width: 8px;
}

.config-scroll::-webkit-scrollbar-track {
    background: var(--background);
}

.config-scroll::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.config-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

.config-section {
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

/* Dimension Mode Toggle */
.dimension-mode {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    background: var(--background);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
}

.mode-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.mode-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

/* Preset Grid */
.preset-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.preset-btn {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    background: white;
    color: var(--text-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.preset-btn:hover {
    border-color: var(--primary-color);
    background: var(--surface-hover);
}

.preset-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
}

/* Custom Dimensions */
.custom-dimensions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.input-group {
    position: relative;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.input-group input {
    width: 100%;
    padding: var(--spacing-md);
    padding-right: 3.5rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: white;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

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

.input-unit {
    position: absolute;
    right: var(--spacing-md);
    top: 2.25rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Option Grid (Roof Type) */
.option-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.option-card {
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.option-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.option-card.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    box-shadow: var(--shadow-md);
}

.option-icon {
    width: 60px;
    height: 40px;
    color: var(--text-secondary);
}

.option-card.active .option-icon {
    color: var(--primary-color);
}

.option-card span {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

/* Toggle Group (Overhang) */
.toggle-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    background: var(--background);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
}

.toggle-group-3 {
    grid-template-columns: repeat(3, 1fr);
}

.toggle-btn {
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.toggle-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

/* Color Categories */
.color-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.category-btn {
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    background: white;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.75rem;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

.category-btn:hover {
    border-color: var(--primary-color);
}

.category-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

/* Color Grid */
.color-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.color-swatch {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border: 3px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-sm);
    overflow: hidden;
    font-family: var(--font-family);
}

.color-swatch:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.color-swatch.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.color-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Price Summary */
.price-summary {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    background: linear-gradient(to top, rgba(37, 99, 235, 0.03) 0%, transparent 100%);
}

.price-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.price-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.price-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-primary {
    width: 100%;
    justify-content: center;
    padding: 1rem;
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr auto;
    }

    .config-panel {
        border-left: none;
        border-top: 1px solid var(--border-color);
        max-height: 50vh;
    }

    .view-controls {
        top: var(--spacing-md);
        left: var(--spacing-md);
    }

    .louver-angle-control {
        top: calc(var(--spacing-md) + 52px);
        left: var(--spacing-md);
    }
}

@media (max-width: 640px) {
    body {
        -webkit-tap-highlight-color: transparent;
    }

    .app-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .logo h1 {
        font-size: 1rem;
    }

    .header-actions {
        gap: var(--spacing-sm);
    }

    .btn-primary,
    .btn-secondary {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .config-panel {
        max-height: 60vh;
    }

    .config-scroll {
        padding: var(--spacing-md);
    }

    .preset-grid {
        grid-template-columns: 1fr;
    }

    .preset-btn {
        padding: var(--spacing-md) var(--spacing-lg);
        min-height: 44px;
    }

    .color-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

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

    .category-btn {
        padding: var(--spacing-sm) var(--spacing-xs);
        font-size: 0.7rem;
        min-height: 36px;
    }

    .option-card {
        padding: var(--spacing-md);
    }

    .option-icon {
        width: 48px;
        height: 32px;
    }

    .toggle-btn,
    .mode-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 40px;
        font-size: 0.8rem;
    }

    .input-group input,
    .dimension-select {
        font-size: 16px;
        /* prevents iOS zoom on focus */
        padding: var(--spacing-md);
        min-height: 44px;
    }

    .louver-slider::-webkit-slider-thumb {
        width: 28px;
        height: 28px;
    }

    .louver-slider::-moz-range-thumb {
        width: 28px;
        height: 28px;
    }

    .louver-angle-control {
        min-width: 160px;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .price-summary {
        padding: var(--spacing-md);
    }

    .price-value {
        font-size: 1.5rem;
    }

    .price-label {
        font-size: 0.8rem;
    }

    .model-card {
        grid-template-columns: 60px 1fr;
        padding: var(--spacing-md);
    }

    .model-image {
        width: 60px;
        height: 45px;
    }

    .model-name {
        font-size: 0.875rem;
    }

    .model-type {
        font-size: 0.8rem;
    }

    .section-title {
        font-size: 1rem;
    }
}

/* Model Selection */
.model-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.model-card {
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
    align-items: center;
    text-align: left;
}

.model-image {
    width: 80px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.model-card.active .model-image {
    color: var(--primary-color);
}

.model-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.model-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.model-type {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Dimension Select */
.dimension-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: white;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

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

.dimension-select:hover {
    border-color: var(--primary-color);
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    border-left: 3px solid var(--primary-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.info-box p {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.info-box strong {
    color: var(--primary-color);
}

.info-box small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Price Breakdown */
.price-breakdown {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.price-breakdown small {
    color: var(--text-secondary);
    font-size: 0.75rem;
    line-height: 1.5;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.config-section {
    animation: fadeIn 0.3s ease;
}

/* ============================================================================ */
/* ORDER MODAL */
/* ============================================================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.modal-overlay.show {
    display: flex;
    opacity: 1;
}

.modal-container {
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--surface);
    z-index: 10;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.modal-content {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-xl);
}

/* Summary Card */
.summary-card {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.summary-icon {
    width: 80px;
    height: 60px;
    margin: 0 auto;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.summary-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    text-align: center;
}

.summary-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.detail-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
    max-width: 60%;
}

.summary-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all 0.2s ease;
    font-family: var(--font-family);
    margin-top: auto;
}

.summary-toggle:hover {
    background: var(--surface-hover);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-section h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    margin-bottom: var(--spacing-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.required {
    color: #ef4444;
}

.form-group input,
.form-group select {
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    background: white;
    transition: all 0.2s ease;
    font-family: var(--font-family);
}

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

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

.checkbox-group {
    margin-top: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-label span {
    flex: 1;
}

.privacy-link {
    color: var(--primary-color);
    text-decoration: underline;
    transition: color 0.2s ease;
}

.privacy-link:hover {
    color: var(--primary-hover);
}

.consent-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.btn-submit {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: 1rem var(--spacing-xl);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
    font-family: var(--font-family);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-submit:active {
    transform: translateY(0);
}

/* Responsive Modal */
@media (max-width: 1024px) {
    .modal-content {
        grid-template-columns: 1fr;
    }

    .summary-card {
        order: -1;
    }
}

@media (max-width: 640px) {
    .modal-overlay {
        padding: 0;
    }

    .modal-container {
        max-height: 100vh;
        border-radius: 0;
    }

    .modal-header {
        padding: var(--spacing-md);
    }

    .modal-content {
        padding: var(--spacing-md);
        gap: var(--spacing-lg);
    }

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

    .summary-card {
        padding: var(--spacing-md);
    }
}