/* Modal Component Styles */

:root {
    --modal-overlay: rgba(0, 0, 0, 0.6);
    --modal-bg: #ffffff;
    --modal-border: #e5e7eb;
    --modal-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --modal-header-bg: #f9fafb;
    --modal-footer-bg: #f9fafb;
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #6b7280;
    --secondary-hover: #4b5563;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border-color: #e5e7eb;
    --toolbar-bg: #f8fafc;
    --toolbar-border: #e2e8f0;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--modal-overlay);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

/* Modal Container */
.modal-container {
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    background: var(--modal-bg);
    border-radius: 16px;
    box-shadow: var(--modal-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalSlideIn 0.3s ease-out;
}

/* Modal Animation */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Modal Content */
.modal-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 90vh;
}

/* Modal Header */
.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    background: var(--modal-header-bg);
    border-bottom: 1px solid var(--modal-border);
    border-radius: 16px 16px 0 0;
}

.modal-title-section {
    flex: 1;
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.modal-title i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.modal-subtitle {
    margin: 0.5rem 0 0 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.modal-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 1rem;
}

.modal-close-btn:hover {
    background-color: #f3f4f6;
    border-color: var(--border-color);
    color: var(--text-primary);
}

.modal-close-btn:active {
    transform: scale(0.95);
}

/* Modal Body */
.modal-body {
    flex: 1;
    padding: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Notebook Toolbar */
.notebook-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    background: var(--toolbar-bg);
    border-bottom: 1px solid var(--toolbar-border);
    gap: 1rem;
}

.toolbar-section {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.toolbar-btn:hover {
    background-color: white;
    border-color: var(--border-color);
    color: var(--text-primary);
}

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

.character-count {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

/* Notebook Editor */
.notebook-editor {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.notes-textarea {
    width: 100%;
    min-height: 300px;
    max-height: 400px;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: white;
    resize: vertical;
    transition: var(--transition);
}

.notes-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.notes-textarea::placeholder {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Notebook Info */
.notebook-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    gap: 1rem;
}

.last-saved {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.last-saved i {
    color: var(--text-secondary);
}

.auto-save-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.status-indicator i {
    font-size: 0.625rem;
}

/* Modal Footer */
.modal-footer {
    background: var(--modal-footer-bg);
    border-top: 1px solid var(--modal-border);
    padding: 1.5rem 2rem;
    border-radius: 0 0 16px 16px;
}

.footer-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn i {
    font-size: 0.875rem;
}

/* Primary Button */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

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

/* Secondary Button */
.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}

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

/* Outline Button */
.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: #f9fafb;
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

/* Message Container */
.message-container {
    min-height: 24px;
    display: flex;
    align-items: center;
}

.message {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    animation: messageSlideIn 0.3s ease-out;
}

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

.message-success {
    background-color: #f0fdf4;
    color: var(--success-color);
    border: 1px solid #bbf7d0;
}

.message-error {
    background-color: #fef2f2;
    color: var(--danger-color);
    border: 1px solid #fecaca;
}

.message-warning {
    background-color: #fffbeb;
    color: var(--warning-color);
    border: 1px solid #fed7aa;
}

.message-info {
    background-color: #eff6ff;
    color: var(--primary-color);
    border: 1px solid #bfdbfe;
}

/* Error State */
.modal-error {
    padding: 2rem;
    text-align: center;
    color: var(--danger-color);
    background-color: #fef2f2;
    border-radius: 8px;
    margin: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .modal-overlay {
        padding: 0.5rem;
    }
    
    .modal-container {
        max-width: 100%;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-title {
        font-size: 1.25rem;
    }
    
    .notebook-toolbar {
        padding: 0.75rem 1.5rem;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .toolbar-section:last-child {
        order: -1;
        width: 100%;
        justify-content: center;
        margin-bottom: 0.5rem;
    }
    
    .notebook-editor {
        padding: 1.5rem;
    }
    
    .notes-textarea {
        min-height: 250px;
    }
    
    .modal-footer {
        padding: 1rem 1.5rem;
    }
    
    .footer-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .notebook-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .modal-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .modal-close-btn {
        align-self: flex-end;
        margin: 0;
    }
    
    .toolbar-btn {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }
}

/* Body class when modal is open */
body.modal-open {
    overflow: hidden;
}

/* Focus trap for accessibility */
.modal-overlay[aria-modal="true"] {
    isolation: isolate;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --modal-bg: #ffffff;
        --modal-border: #000000;
        --text-primary: #000000;
        --text-secondary: #000000;
        --primary-color: #0000ff;
        --border-color: #000000;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .modal-container,
    .message {
        animation: none;
    }
    
    .btn,
    .toolbar-btn,
    .modal-close-btn,
    .status-indicator {
        transition: none;
    }
}