/* Base 2 Notes — Theme Variables */

:root {
    /* Light Theme (default) */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-light: #e0e7ff;
    --color-primary-text: #ffffff;

    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-warning: #f59e0b;
    --color-success: #22c55e;
    --color-info: #3b82f6;

    --bg-body: #f1f5f9;
    --bg-sidebar: #ffffff;
    --bg-main: #ffffff;
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-hover: #f1f5f9;
    --bg-active: #e0e7ff;
    --bg-editor: #ffffff;
    --bg-modal-overlay: rgba(0, 0, 0, 0.4);
    --bg-tooltip: #1e293b;

    --border-color: #e2e8f0;
    --border-color-light: #f1f5f9;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-active: #6366f1;
    --text-editor: #0f172a;
    --text-inverse: #ffffff;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    --activity-bar-width: 56px;
    --nav-width: 240px;
    --notelist-width: 320px;
    --header-height: 56px;
    --avatar-size: 36px;

    --bg-activity-bar: #1e293b;
    --bg-activity-bar-hover: rgba(255, 255, 255, 0.08);
    --bg-activity-bar-active: rgba(255, 255, 255, 0.12);
    --bg-activity-bar-indicator: #6366f1;
    --text-activity-bar: #94a3b8;
    --text-activity-bar-hover: #e2e8f0;
    --text-activity-bar-active: #ffffff;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --font-size-xs: 0.6875rem;    /* 11px */
    --font-size-sm: 0.75rem;       /* 12px */
    --font-size-base: 0.8125rem;   /* 13px */
    --font-size-md: 0.875rem;      /* 14px */
    --font-size-lg: 1rem;          /* 16px */

    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    /* Z-index scale */
    --z-base: 1;
    --z-overlay: 10;
    --z-overlay-controls: 25;
    --z-overlay-connectors: 40;
    --z-overlay-cp: 46;
    --z-sticky: 50;
    --z-activity-bar: 100;
    --z-tooltip: 125;
    --z-dropdown: 500;
    --z-mobile-editor: 600;
    --z-mobile-nav: 800;
    --z-mobile-bar: 801;
    --z-avatar: 900;
    --z-modal: 1000;
    --z-theme-editor: 1100;
    --z-popover: 1500;
    --z-drawing-toolbar: 1600;
    --z-edit-toolbar: 1650;
    --z-recording: 1700;
    --z-menubar: 1800;
    --z-toast: 2000;
    --z-resizer-overlay: 9999;

    /* Density — default comfortable */
    --density-padding-sm: 4px;
    --density-padding-md: 8px;
    --density-padding-lg: 12px;
    --density-padding-xl: 16px;
    --density-gap-sm: 4px;
    --density-gap-md: 8px;
    --density-font-sm: 0.8125rem;
    --density-font-md: 0.875rem;

    /* Graph View */
    --graph-bg: #f8fafc;
    --graph-node-note: #3b82f6;
    --graph-node-kanban: #22c55e;
    --graph-node-mindmap: #f59e0b;
    --graph-node-drawing: #8b5cf6;
    --graph-edge: #000000;
    --graph-label: #334155;
}

/* Dark Theme */
[data-theme="dark"] {
    --color-primary: #818cf8;
    --color-primary-hover: #6366f1;
    --color-primary-light: #312e81;
    --color-primary-text: #ffffff;
    --color-info: #60a5fa;

    --bg-body: #0f172a;
    --bg-sidebar: #1e293b;
    --bg-main: #1e293b;
    --bg-card: #1e293b;
    --bg-input: #334155;
    --bg-hover: #334155;
    --bg-active: #312e81;
    --bg-editor: #1e293b;
    --bg-modal-overlay: rgba(0, 0, 0, 0.6);
    --bg-tooltip: #475569;

    --border-color: #334155;
    --border-color-light: #1e293b;

    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --text-active: #818cf8;
    --text-editor: #f1f5f9;
    --text-inverse: #0f172a;

    --bg-activity-bar: #0f172a;
    --bg-activity-bar-hover: rgba(255, 255, 255, 0.08);
    --bg-activity-bar-active: rgba(255, 255, 255, 0.12);
    --bg-activity-bar-indicator: #818cf8;
    --text-activity-bar: #64748b;
    --text-activity-bar-hover: #cbd5e1;
    --text-activity-bar-active: #ffffff;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);

    /* Graph View */
    --graph-bg: #1a1a2e;
    --graph-node-note: #3b82f6;
    --graph-node-kanban: #22c55e;
    --graph-node-mindmap: #f59e0b;
    --graph-node-drawing: #8b5cf6;
    --graph-edge: #ffffff;
    --graph-label: #e2e8f0;
}

/* Compact Density */
body.density-compact {
    --density-padding-sm: 2px;
    --density-padding-md: 4px;
    --density-padding-lg: 8px;
    --density-padding-xl: 12px;
    --density-gap-sm: 2px;
    --density-gap-md: 4px;
    --density-font-sm: 0.75rem;
    --density-font-md: 0.8125rem;
    --header-height: 44px;
    --activity-bar-width: 48px;
}

/* Focus indicators */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Remove outline for mouse/touch users */
:focus:not(:focus-visible) {
    outline: none;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* System color scheme detection — auto-apply dark theme */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --color-primary: #818cf8;
        --color-primary-hover: #6366f1;
        --color-primary-light: #312e81;
        --bg-body: #0f172a;
        --bg-sidebar: #1e293b;
        --bg-main: #1e293b;
        --bg-card: #1e293b;
        --bg-input: #334155;
        --bg-hover: #334155;
        --bg-active: #312e81;
        --bg-editor: #1e293b;
        --bg-modal-overlay: rgba(0, 0, 0, 0.6);
        --bg-tooltip: #475569;
        --border-color: #334155;
        --border-color-light: #1e293b;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #64748b;
        --text-active: #818cf8;
        --text-editor: #f1f5f9;
        --text-inverse: #0f172a;
        --bg-activity-bar: #0f172a;
        --bg-activity-bar-indicator: #818cf8;
        --text-activity-bar: #64748b;
        --text-activity-bar-hover: #cbd5e1;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    }
}