/* ═══════════ Modal System ═══════════ */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-container {
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 400px;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    animation: modalIn 0.2s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(-10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 28px; height: 28px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-hover);
    color: var(--accent-danger);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: 60vh;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.modal-btn {
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
}

.modal-btn.primary {
    background: var(--accent-gradient);
    color: white;
}

.modal-btn.primary:hover {
    opacity: 0.9;
    box-shadow: var(--shadow-glow);
}

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

.modal-btn.secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Export Modal */
.export-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 12px;
}

.export-option {
    padding: 12px;
    background: var(--bg-medium);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: center;
    transition: var(--transition-fast);
}

.export-option:hover {
    border-color: var(--accent-secondary);
    background: var(--bg-hover);
}

.export-option.selected {
    border-color: var(--accent-primary);
    background: rgba(108,92,231,0.15);
}

.export-format {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-secondary);
    text-transform: uppercase;
}

.export-name {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Projects Modal */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.project-card {
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.project-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.project-card-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.project-card-date {
    font-size: 11px;
    color: var(--text-muted);
}

.project-card-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.project-card-actions button {
    padding: 4px 10px;
    font-size: 11px;
    background: var(--bg-lighter);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.project-card-actions button:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.project-card-actions button.danger:hover {
    background: var(--accent-danger);
    border-color: var(--accent-danger);
}

/* Preferences Modal */
.pref-section {
    margin-bottom: 20px;
}

.pref-section h3 {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pref-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.pref-row label {
    color: var(--text-secondary);
}

.pref-row select,
.pref-row input[type="number"] {
    padding: 5px 10px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    outline: none;
}

/* Mesh Info Modal */
.mesh-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.mesh-info-item {
    padding: 12px;
    background: var(--bg-medium);
    border-radius: var(--radius-sm);
}

.mesh-info-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.mesh-info-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-secondary);
    margin-top: 4px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 40px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 3000;
}

.toast {
    padding: 10px 16px;
    background: var(--bg-medium);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 350px;
}

.toast.success { border-left: 3px solid var(--accent-success); }
.toast.error { border-left: 3px solid var(--accent-danger); }
.toast.warning { border-left: 3px solid var(--accent-warning); }
.toast.info { border-left: 3px solid var(--accent-info); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
    from { opacity: 1; }
    to { opacity: 0; transform: translateX(30px); }
}

/* Input Prompt (for 3D text, etc.) */
.input-prompt {
    margin: 12px 0;
}

.input-prompt label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.input-prompt input,
.input-prompt select,
.input-prompt textarea {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    outline: none;
}

.input-prompt input:focus,
.input-prompt textarea:focus {
    border-color: var(--accent-primary);
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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