/**
 * Insertr - The Tailwind of CMS
 * Unified CSS Styles with Cascade Layer Architecture
 */

@layer insertr {
    /* =================================================================
       CSS CUSTOM PROPERTIES - MODERN THEMING SYSTEM
       ================================================================= */

    :root {
        /* Color System */
        --insertr-primary: #4f46e5;
        --insertr-primary-hover: #4338ca;
        --insertr-primary-active: #3730a3;
        
        --insertr-success: #10b981;
        --insertr-success-hover: #059669;
        
        --insertr-danger: #dc2626;
        --insertr-danger-hover: #b91c1c;
        
        --insertr-warning: #f59e0b;
        --insertr-warning-hover: #d97706;
        
        --insertr-info: #3b82f6;
        --insertr-info-hover: #2563eb;
        
        --insertr-purple: #6f42c1;
        --insertr-purple-hover: #5a359a;
        
        /* Text Colors */
        --insertr-text-primary: #1f2937;
        --insertr-text-secondary: #374151;
        --insertr-text-muted: #6b7280;
        --insertr-text-inverse: #ffffff;
        
        /* Background Colors */
        --insertr-bg-primary: #ffffff;
        --insertr-bg-secondary: #f8fafc;
        --insertr-bg-muted: #f3f4f6;
        --insertr-bg-overlay: rgba(0, 0, 0, 0.5);
        
        /* Border Colors */
        --insertr-border-light: #e5e7eb;
        --insertr-border-medium: #d1d5db;
        --insertr-border-dark: #374151;
        
        /* Component Colors */
        --insertr-form-border: var(--insertr-border-medium);
        --insertr-form-border-focus: var(--insertr-info);
        
        /* Shadows */
        --insertr-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
        --insertr-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
        --insertr-shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
        --insertr-shadow-xl: 0 10px 25px rgba(0, 0, 0, 0.2);
        
        /* Spacing */
        --insertr-radius-sm: 4px;
        --insertr-radius-md: 6px;
        --insertr-radius-lg: 8px;
        
        /* Z-Index Scale */
        --insertr-z-tooltip: 1000;
        --insertr-z-overlay: 9999;
        --insertr-z-modal: 10000;
        --insertr-z-modal-backdrop: 10001;
    }

    /* Dark Theme Override (when parent site uses dark theme) */
    [data-theme="dark"] {
        --insertr-text-primary: #f9fafb;
        --insertr-text-secondary: #e5e7eb;
        --insertr-text-muted: #9ca3af;
        --insertr-bg-primary: #1f2937;
        --insertr-bg-secondary: #374151;
        --insertr-bg-muted: #4b5563;
        --insertr-border-light: #4b5563;
        --insertr-border-medium: #6b7280;
    }

    /* =================================================================
       FOUNDATION & SPECIFIC TARGETING
       ================================================================= 
       
       HYBRID CSS ARCHITECTURE:
       
       This CSS uses a hybrid approach for maximum browser compatibility:
       
       1. MODERN BROWSERS: @layer insertr provides cascade layer isolation
          - Layered styles automatically win over unlayered styles
          - Clean separation regardless of specificity
          - Future-proof CSS architecture
          
       2. LEGACY BROWSERS: Higher specificity fallback selectors
          - html body .insertr-* selectors (0,0,3,0) beat universal * (0,0,0,1)
          - Works in all browsers back to IE6
          - Ensures consistent behavior across environments
          
       This ensures our form elements maintain proper spacing and styling
       even on sites with aggressive CSS resets like "* {margin:0; padding:0}"
       ================================================================= */

    /* Minimal gate foundation */
    .insertr-gate {
        cursor: pointer;
        user-select: none;
    }

    /* UI component protection - specific targeting only */
    .insertr-edit-form,
    .insertr-edit-form * {
        color: var(--insertr-text-primary);
    }

    .insertr-auth-controls,
    .insertr-auth-controls * {
        color: var(--insertr-text-primary);
    }

    .insertr-version-modal,
    .insertr-version-modal * {
        color: var(--insertr-text-primary);
    }

    /* Component-specific color overrides */
    .insertr-btn-save,
    .insertr-btn-cancel,
    .insertr-btn-history,
    .insertr-auth-btn {
        color: var(--insertr-text-inverse);
    }

    .insertr-form-help {
        color: var(--insertr-text-muted);
    }

    .insertr-status-text {
        color: var(--insertr-text-secondary);
    }

    /* =================================================================
       AUTHENTICATION CONTROLS
       ================================================================= */

    .insertr-auth-controls {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: var(--insertr-z-overlay);
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    }

    .insertr-auth-btn {
        background: var(--insertr-primary);
        color: var(--insertr-text-inverse);
        border: none;
        padding: 8px 16px;
        border-radius: var(--insertr-radius-md);
        font-size: 14px;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s;
        box-shadow: var(--insertr-shadow-sm);
    }

    .insertr-auth-btn:hover {
        background: var(--insertr-primary-hover);
        transform: translateY(-1px);
        box-shadow: var(--insertr-shadow-md);
    }

    .insertr-auth-btn.insertr-authenticated {
        background: var(--insertr-success);
    }

    .insertr-auth-btn.insertr-authenticated:hover {
        background: var(--insertr-success-hover);
    }

    .insertr-auth-btn.insertr-edit-active {
        background: var(--insertr-danger);
    }

    .insertr-auth-btn.insertr-edit-active:hover {
        background: var(--insertr-danger-hover);
    }

    .insertr-status-controls {
        position: fixed;
        bottom: 20px;
        left: 20px;
        z-index: var(--insertr-z-overlay);
        display: flex;
        flex-direction: column;
        gap: 8px;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    }

    .insertr-status {
        background: var(--insertr-bg-primary);
        border: 1px solid var(--insertr-border-light);
        border-radius: var(--insertr-radius-lg);
        padding: 8px 12px;
        box-shadow: var(--insertr-shadow-md);
        max-width: 200px;
    }

    .insertr-status-content {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .insertr-status-text {
        font-size: 12px;
        font-weight: 500;
        color: var(--insertr-text-secondary);
    }

    .insertr-status-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--insertr-text-muted);
    }

    .insertr-status-dot.insertr-status-visitor {
        background: var(--insertr-text-muted);
    }

    .insertr-status-dot.insertr-status-authenticated {
        background: var(--insertr-success);
    }

    .insertr-status-dot.insertr-status-editing {
        background: var(--insertr-danger);
        animation: insertr-pulse 2s infinite;
    }

    @keyframes insertr-pulse {

        0%,
        100% {
            opacity: 1;
        }

        50% {
            opacity: 0.5;
        }
    }

    .insertr-authenticated.insertr-edit-mode .insertr {
        cursor: pointer;
    }

    .insertr-authenticated.insertr-edit-mode .insertr:hover {
        outline: 2px dashed #007cba !important;
        outline-offset: 2px !important;
        background-color: rgba(0, 124, 186, 0.05) !important;
    }

    /* =================================================================
       EDITOR STYLES
       ================================================================= */

    .insertr-editing-hover {
        outline: 2px dashed var(--insertr-info) !important;
        outline-offset: 2px !important;
        background-color: color-mix(in srgb, var(--insertr-info) 5%, transparent) !important;
    }

    .insertr:hover::after {
        content: "✏️ " attr(data-content-type);
        position: absolute;
        top: -25px;
        left: 0;
        background: #007cba;
        color: white;
        padding: 2px 6px;
        font-size: 11px;
        border-radius: 3px;
        white-space: nowrap;
        z-index: 1000;
        font-family: monospace;
    }

    /* =================================================================
       MODAL AND FORM STYLES
       ================================================================= */

    /* Overlay and Form Container */
    .insertr-form-overlay {
        position: absolute;
        z-index: 10000;
    }

    .insertr-edit-form {
        background: var(--insertr-bg-primary);
        border: 2px solid var(--insertr-info);
        border-radius: var(--insertr-radius-lg);
        padding: 1rem;
        box-shadow: var(--insertr-shadow-lg);
        width: 100%;
        box-sizing: border-box;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        min-width: 600px;
        max-width: 800px;
        color: #1f2937;
    }

    /* Form Header */
    .insertr-edit-form .insertr-form-header {
        font-weight: 600;
        color: var(--insertr-text-primary);
        margin-bottom: 1rem;
        padding-bottom: 0.5rem;
        border-bottom: 1px solid var(--insertr-border-light);
        font-size: 0.875rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    /* Form Groups and Fields */
    .insertr-edit-form .insertr-form-group {
        margin-bottom: 1rem;
    }

    .insertr-edit-form .insertr-form-group:last-child {
        margin-bottom: 0;
    }

    /* Higher specificity fallback for browsers without cascade layer support */
    html body .insertr-edit-form .insertr-form-group {
        margin-bottom: 1rem;
    }

    html body .insertr-edit-form .insertr-form-group:last-child {
        margin-bottom: 0;
    }

    .insertr-form-label {
        display: block;
        font-weight: 600;
        color: var(--insertr-text-secondary);
        margin-bottom: 0.5rem;
        font-size: 0.875rem;
    }

    .insertr-edit-form .insertr-form-input,
    .insertr-edit-form .insertr-form-textarea {
        width: 100%;
        padding: 0.75rem;
        border: 1px solid var(--insertr-form-border);
        border-radius: var(--insertr-radius-md);
        font-family: inherit;
        font-size: 1rem;
        color: var(--insertr-text-primary);
        background-color: var(--insertr-bg-primary);
        transition: border-color 0.2s, box-shadow 0.2s;
        box-sizing: border-box;
        margin: 0;
    }

    /* Higher specificity fallback for browsers without cascade layer support */
    html body .insertr-edit-form .insertr-form-input,
    html body .insertr-edit-form .insertr-form-textarea {
        padding: 0.75rem;
        margin: 0;
    }

    .insertr-form-input:focus,
    .insertr-form-textarea:focus {
        outline: none;
        border-color: var(--insertr-form-border-focus);
        box-shadow: 0 0 0 3px color-mix(in srgb, var(--insertr-info) 10%, transparent);
    }

    /* Markdown Editor Styling */
    .insertr-form-textarea {
        min-height: 120px;
        resize: vertical;
        font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    }

    .insertr-markdown-editor {
        min-height: 200px;
        font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
        font-size: 0.9rem;
        line-height: 1.5;
        color: var(--insertr-text-primary);
        background-color: var(--insertr-bg-secondary);
    }

    /* Form Actions */
    .insertr-edit-form .insertr-form-actions {
        display: flex;
        gap: 0.5rem;
        justify-content: flex-end;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--insertr-border-light);
    }

    /* Higher specificity fallback for browsers without cascade layer support */
    html body .insertr-edit-form .insertr-form-actions {
        margin-top: 1rem;
        padding-top: 1rem;
    }

    .insertr-edit-form .insertr-btn-save {
        background: var(--insertr-success);
        color: var(--insertr-text-inverse);
        border: none;
        padding: 0.5rem 1rem;
        margin: 0;
        border-radius: var(--insertr-radius-md);
        font-size: 0.875rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s;
    }

    /* Higher specificity fallback for browsers without cascade layer support */
    html body .insertr-edit-form .insertr-btn-save {
        padding: 0.5rem 1rem;
        margin: 0;
    }

    .insertr-btn-save:hover {
        background: var(--insertr-success-hover);
        transform: translateY(-1px);
        box-shadow: var(--insertr-shadow-sm);
    }

    .insertr-edit-form .insertr-btn-cancel {
        background: var(--insertr-text-muted);
        color: var(--insertr-text-inverse);
        border: none;
        padding: 0.5rem 1rem;
        margin: 0;
        border-radius: var(--insertr-radius-md);
        font-size: 0.875rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s;
    }

    /* Higher specificity fallback for browsers without cascade layer support */
    html body .insertr-edit-form .insertr-btn-cancel {
        padding: 0.5rem 1rem;
        margin: 0;
    }

    .insertr-btn-cancel:hover {
        background: var(--insertr-text-secondary);
        transform: translateY(-1px);
        box-shadow: var(--insertr-shadow-sm);
    }

    /* Preview Styling */
    .insertr-preview-active {
        background-color: rgba(16, 185, 129, 0.1) !important;
        border: 1px dashed #10b981 !important;
        transition: all 0.2s ease;
    }

    /* Form Help Text */
    .insertr-form-help {
        font-size: 0.75rem;
        color: #6b7280;
        margin-top: 0.25rem;
        font-style: italic;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .insertr-edit-form {
            min-width: 300px;
            max-width: calc(100vw - 40px);
        }
    }

    /* =================================================================
       VERSION HISTORY MODAL STYLES
       ================================================================= */

    .insertr-version-modal {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 10001;
    }

    .insertr-version-backdrop {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 20px;
    }

    .insertr-version-content-modal {
        background: white;
        border-radius: 8px;
        max-width: 600px;
        width: 100%;
        max-height: 80vh;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
        display: flex;
        flex-direction: column;
    }

    .insertr-version-header {
        padding: 20px 20px 0;
        border-bottom: 1px solid #eee;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-shrink: 0;
    }

    .insertr-version-header h3 {
        margin: 0 0 20px;
        color: #333;
        font-size: 18px;
    }

    .insertr-btn-close {
        background: none;
        border: none;
        font-size: 24px;
        cursor: pointer;
        color: #666;
        padding: 0;
        width: 30px;
        height: 30px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .insertr-btn-close:hover {
        color: #333;
    }

    .insertr-version-list {
        overflow-y: auto;
        padding: 20px;
        flex: 1;
    }

    .insertr-version-item {
        border: 1px solid #e1e5e9;
        border-radius: 6px;
        padding: 16px;
        margin-bottom: 12px;
        background: #f8f9fa;
    }

    .insertr-version-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 8px;
        font-size: 13px;
    }

    .insertr-version-label {
        font-weight: 600;
        color: #0969da;
    }

    .insertr-version-date {
        color: #656d76;
    }

    .insertr-version-user {
        color: #656d76;
    }

    .insertr-version-content {
        margin-bottom: 12px;
        padding: 8px;
        background: white;
        border-radius: 4px;
        font-family: monospace;
        font-size: 14px;
        color: #24292f;
        white-space: pre-wrap;
    }

    .insertr-version-actions {
        display: flex;
        gap: 8px;
    }

    .insertr-btn-restore {
        background: #0969da;
        color: white;
        border: none;
        padding: 6px 12px;
        border-radius: 4px;
        cursor: pointer;
        font-size: 12px;
        font-weight: 500;
    }

    .insertr-btn-restore:hover {
        background: #0860ca;
    }

    .insertr-btn-view-diff {
        background: #f6f8fa;
        color: #24292f;
        border: 1px solid #d1d9e0;
        padding: 6px 12px;
        border-radius: 4px;
        cursor: pointer;
        font-size: 12px;
        font-weight: 500;
    }

    .insertr-btn-view-diff:hover {
        background: #f3f4f6;
    }

    .insertr-version-empty {
        text-align: center;
        color: #656d76;
        font-style: italic;
        padding: 40px 20px;
    }

    /* History Button in Form */
    .insertr-btn-history {
        background: #6f42c1;
        color: white;
        border: none;
        padding: 8px 16px;
        border-radius: 4px;
        cursor: pointer;
        font-size: 14px;
        font-weight: 500;
        margin-left: auto;
    }

    .insertr-btn-history:hover {
        background: #5a359a;
    }
}