/**
 * @file    cad-viewer.css
 * @page    request-for-quotation.html, quote-review.html, final-quotation.html, final-quote-review.html, supplier-quotation.html
 * @desc    3D CAD file viewer component, viewport controls, loading states.
 */

/* CAD Viewer Modal Styles */

/* ============================================================
   CAD VIEWER MODAL - 3D Model Viewing Component
   ============================================================ */

.cad-viewer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.cad-viewer.active {
    opacity: 1;
    visibility: visible;
}

/* Modal Container */
.cad-viewer-modal {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 700px;
    max-height: 600px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95) translateY(10px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.cad-viewer.active .cad-viewer-modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

/* Header */
.cad-viewer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid #e5e7eb;
    background: #f8fafc;
}

.cad-viewer-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: "Jost", sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: #1e293b;
    overflow: hidden;
}

.cad-viewer-title i {
    color: #3b82f6;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.cad-viewer-filename {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 400px;
}

.cad-viewer-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cad-viewer-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    color: #64748b;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.cad-viewer-btn:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
    color: #1e293b;
}

.cad-viewer-btn.close:hover {
    background: #fef2f2;
    border-color: #fecaca;
    color: #ef4444;
}

/* Canvas Container */
.cad-viewer-canvas-container {
    position: relative;
    flex: 1;
    min-height: 400px;
    background: #1e293b;
    overflow: hidden;
}

.cad-viewer-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Loading State */
.cad-viewer-loading {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: #1e293b;
    z-index: 10;
}

.cad-viewer-loading.hidden {
    display: none;
}

.cad-viewer-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: cad-viewer-spin 0.8s linear infinite;
}

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

.cad-viewer-loading-text {
    color: #94a3b8;
    font-family: "Jost", sans-serif;
    font-size: 0.9rem;
}

/* Error State */
.cad-viewer-error {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: #1e293b;
    z-index: 10;
    padding: 20px;
    text-align: center;
}

.cad-viewer-error.hidden {
    display: none;
}

.cad-viewer-error-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 50%;
    color: #ef4444;
    font-size: 1.75rem;
}

.cad-viewer-error-message {
    color: #f1f5f9;
    font-family: "Jost", sans-serif;
    font-size: 1rem;
    font-weight: 500;
    max-width: 300px;
}

.cad-viewer-error-details {
    color: #94a3b8;
    font-size: 0.85rem;
    max-width: 300px;
}

.cad-viewer-retry-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: #3b82f6;
    color: white;
    font-family: "Jost", sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease;
    margin-top: 8px;
}

.cad-viewer-retry-btn:hover {
    background: #2563eb;
}

/* Footer */
.cad-viewer-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 12px 20px;
    border-top: 1px solid #e5e7eb;
    background: #f8fafc;
}

.cad-viewer-hint {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #64748b;
    font-family: "Jost", sans-serif;
    font-size: 0.8rem;
}

.cad-viewer-hint i {
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .cad-viewer-modal {
        max-width: calc(100% - 32px);
        max-height: calc(100% - 32px);
        margin: 16px;
    }

    .cad-viewer-canvas-container {
        min-height: 300px;
    }

    .cad-viewer-header {
        padding: 12px 16px;
    }

    .cad-viewer-filename {
        max-width: 200px;
    }

    .cad-viewer-footer {
        flex-wrap: wrap;
        gap: 12px;
        padding: 10px 16px;
    }

    .cad-viewer-hint {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .cad-viewer-modal {
        max-width: 100%;
        max-height: 100%;
        margin: 0;
        border-radius: 0;
    }

    .cad-viewer-title {
        font-size: 0.85rem;
    }

    .cad-viewer-filename {
        max-width: 150px;
    }

    .cad-viewer-btn {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }
}

/* View 3D Button in Spec Cards */
.spec-card-view3d-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: #eff6ff;
    color: #3b82f6;
    font-family: "Jost", sans-serif;
    font-weight: 500;
    font-size: 0.8rem;
    border: 1px solid #bfdbfe;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.spec-card-view3d-btn:hover {
    background: #dbeafe;
    border-color: #93c5fd;
}

.spec-card-view3d-btn:active {
    background: #bfdbfe;
}

.spec-card-view3d-btn i {
    font-size: 0.9rem;
}

.spec-card-view3d-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}