/* ==========================================================================
   GearGen-3D Modals Stylesheet
   Dark CAD Theme & Export Modal
   ========================================================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.modal-content {
    position: relative;
    background: var(--background-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 640px;
    width: 100%;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.96);
    transition: transform var(--transition-normal);
    z-index: 10;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    height: 52px;
    padding: 0 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(0, 0, 0, 0.15);
}

.modal-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-header h2 i {
    color: var(--accent-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    color: var(--text-primary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.modal-body h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #60A5FA;
    margin: 16px 0 8px 0;
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.modal-body ul, .modal-body ol {
    margin-bottom: 14px;
    padding-left: 20px;
    color: var(--text-secondary);
}

.modal-body li {
    margin-bottom: 6px;
}

.modal-body code {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-success);
}

.modal-body a {
    color: var(--accent-primary);
    text-decoration: none;
}

.modal-body a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Export Modal Specific Layout
   ========================================================================== */
.export-dialog-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.export-gear-summary {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.summary-item {
    display: flex;
    flex-direction: column;
}

.summary-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.summary-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.export-formats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.export-format-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all var(--transition-fast);
}

.export-format-card:hover {
    border-color: var(--accent-primary);
    background: var(--background-panel-hover);
}

.format-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.format-badge {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-primary);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.format-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
    min-height: 38px;
}

.btn-export {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--accent-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.825rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
    text-decoration: none;
}

.btn-export:hover:not(:disabled) {
    background: var(--accent-primary-hover);
}

.btn-export:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-export.btn-step {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-export.btn-step:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-primary);
}

.export-format-card--wide {
    grid-column: 1 / -1;
}

.btn-export.btn-dxf {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-success);
    border: 1px solid rgba(16, 185, 129, 0.35);
}

.btn-export.btn-dxf:hover:not(:disabled) {
    background: rgba(16, 185, 129, 0.25);
    border-color: var(--accent-success);
}

.export-file-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-secondary);
    padding: 8px 12px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
}

.file-size-tag {
    font-family: var(--font-mono);
    color: var(--accent-success);
    font-weight: 600;
}