/* =================================================================
 * CHAT-SPECIFIC THEME & COLOR VARIABLES
 * ================================================================= */

/*
 * This module defines all CSS custom properties used throughout the chat interface.
 * It serves as the foundation for the entire chat styling system.
 * 
 * Dependencies: None (foundation module)
 * Used by: All other chat modules
 * 
 * Key Features:
 * - Light and dark theme definitions
 * - Animation timing and easing functions
 * - Layout dimensions and constraints
 * - Z-index management for proper layering
 */

:root {
    /* Window & Background Colors */
    --window-bg: #ffffff;
    --taskbar-bg: #f8f9fa;
    --elevated-bg: #ffffff;
    --input-bg: #ffffff;
    --hover-bg: #f1f5f9;

    /* Text Colors */
    --text-color: #1a1a1a;
    --text-secondary: #666666;
    --file-name-color: #1a1a1a;

    /* Border & Divider Colors */
    --border-color: #e2e8f0;

    /* Shadow Colors */
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Accent & Interactive Colors */
    --accent-color: #374151;
    --accent-hover: #1f2937;
    --accent-color-rgb: 55, 65, 81;
    --accent-muted: rgba(55, 65, 81, 0.1);
    --icon-color: #64748b;

    /* Link Colors */
    --link-color: #374151;
    --link-hover: #1f2937;

    /* Code & Syntax Colors */
    --code-bg: #f8fafc;
    --code-header-bg: #f1f5f9;
    --code-border: #e2e8f0;
    --code-language-color: #64748b;

    /* Table Colors */
    --table-border: #e2e8f0;
    --table-header-bg: #f8fafc;
    --table-stripe-bg: #f9fafb;

    /* Message Colors */
    --message-user-bg: #1f2937;
    --message-bot-bg: #f8fafc;

    /* Animation Variables */
    --anim-fast: 0.2s;
    --anim-normal: 0.3s;
    --anim-slow: 0.4s;
    --easing-standard: cubic-bezier(0.4, 0, 0.2, 1);

    /* Chat-Specific Layout Variables */
    --chat-container-width: 55%;
    --chat-container-left: 52.5%;
    --chat-max-width: 800px;
    --input-container-max-width: 800px;
    --input-bottom-offset: 56px;
    --message-max-width: 85%;
    --input-min-height: 70px;
    --input-max-height: 200px;

    /* Z-Index Management */
    --z-chat-container: 999;
    --z-input-container: 999;
    --z-context-window: 1001;
    --z-dropdown-menu: 1000;
    --z-selected-context-viewer: 1000;
    --z-welcome-message: 1002;
}

/* Dark Mode Theme Overrides */
.dark-mode {
    /* Window & Background Colors */
    --window-bg: #1a1a1a;
    --taskbar-bg: #242424;
    --elevated-bg: #242424;
    --input-bg: #242424;
    --hover-bg: #2e2e2e;

    /* Text Colors */
    --text-color: #e2e8f0;
    --text-secondary: #94a3b8;
    --file-name-color: #e2e8f0;

    /* Border & Divider Colors */
    --border-color: #3a3a3a;

    /* Shadow Colors */
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);

    /* Accent & Interactive Colors */
    --accent-color: #d1d5db;
    --accent-hover: #f3f4f6;
    --accent-color-rgb: 209, 213, 219;
    --accent-muted: rgba(209, 213, 219, 0.15);
    --icon-color: #94a3b8;

    /* Link Colors */
    --link-color: #d1d5db;
    --link-hover: #f3f4f6;

    /* Code & Syntax Colors */
    --code-bg: #242424;
    --code-header-bg: #2e2e2e;
    --code-border: #3a3a3a;
    --code-language-color: #94a3b8;

    /* Table Colors */
    --table-border: #3a3a3a;
    --table-header-bg: #242424;
    --table-stripe-bg: #2e2e2e;

    /* Message Colors */
    --message-user-bg: #e5e7eb;
    --message-bot-bg: #242424;

    /* Animation Variables (same for both themes) */
    --anim-fast: 0.2s;
    --anim-normal: 0.3s;
    --anim-slow: 0.4s;
    --easing-standard: cubic-bezier(0.4, 0, 0.2, 1);
}