/* =============================================================================
 * FERROQUANT DESIGN SYSTEM
 * =============================================================================
 * A unified design system for consistent styling across all pages.
 *
 * Contents:
 * 1. CSS Custom Properties (Design Tokens)
 * 2. Reset & Base Styles
 * 3. Typography
 * 4. Layout & Grid
 * 5. Navigation
 * 6. Cards & Panels
 * 7. Buttons
 * 8. Forms
 * 9. Tables
 * 10. Badges & Tags
 * 11. Alerts & Notifications
 * 12. Code Blocks
 * 13. Modals
 * 14. Utilities
 * 15. Animations
 * =============================================================================
 */

/* =============================================================================
 * 1. CSS CUSTOM PROPERTIES (DESIGN TOKENS)
 * =============================================================================
 */
:root {
    /* -------------------------------------------------------------------------
     * Color Palette - Base
     * ------------------------------------------------------------------------- */
    --color-black: #000000;
    --color-white: #ffffff;

    /* Grays (GitHub-style) */

    /* Brand Colors */
    --brand-primary: #58a6ff;      /* Blue - primary actions */
    --brand-secondary: #7ee787;    /* Green - success/positive */
    --brand-accent: #f0883e;       /* Orange - accents */
    --brand-gold: #d4a843;         /* Gold - premium features */
    --brand-gold-dark: #b8902e;    /* Gold dark - hover/pressed states */
    --brand-silver: #c0c0c0;       /* Silver - 2nd place */
    --brand-bronze: #cd7f32;       /* Bronze - 3rd place */
    --color-purple: #a371f7;       /* Purple - live/premium badges */
    --color-purple-dark: #6d28d9;  /* Deep purple - upgrade gradients */

    /* Platform Brand Colors (fixed across themes) */
    --platform-tiktok: #fe2c55;
    --platform-twitch: #9146ff;
    --platform-kick: #53fc18;
    --platform-youtube: #ff4444;
    --platform-x: #1DA1F2;         /* X/Twitter brand blue */
    --platform-reddit: #FF4500;    /* Reddit brand orange */

    /* Semantic Colors */
    --color-success: #238636;
    --color-success-emphasis: #2ea043;
    --color-success-subtle: rgba(46, 160, 67, 0.15);
    --color-success-text: #7ee787;

    --color-warning-subtle: rgba(187, 128, 9, 0.15);
    --color-warning-text: #f0883e;

    --color-danger: #da3633;
    --color-danger-emphasis: #f85149;
    --color-danger-subtle: rgba(248, 81, 73, 0.15);
    --color-danger-text: #ff7b72;

    --color-info: #1f6feb;
    --color-info-emphasis: #388bfd;
    --color-info-subtle: rgba(56, 139, 253, 0.15);
    --color-info-text: #58a6ff;

    /* -------------------------------------------------------------------------
     * Surfaces & Backgrounds
     * ------------------------------------------------------------------------- */
    --surface-base: #0d1117;        /* Page background */
    --surface-overlay: #161b22;     /* Cards, panels */
    --surface-raised: #21262d;      /* Elevated elements */
    --surface-sunken: #010409;              /* Inset areas */
    --surface-terminal: #0a0a0a;            /* Trading terminal HUD (always dark) */
    --surface-deep: #111111;                /* Deep dark panels (always dark) */
    --surface-hover: rgba(177, 186, 196, 0.12);
    --surface-active: rgba(177, 186, 196, 0.2);

    /* -------------------------------------------------------------------------
     * Borders
     * ------------------------------------------------------------------------- */
    --border-default: #30363d;
    --border-muted: #21262d;
    --border-subtle: rgba(240, 246, 252, 0.1);
    --border-emphasis: #484f58;

    /* -------------------------------------------------------------------------
     * Text Colors
     * ------------------------------------------------------------------------- */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-tertiary: #6e7681;
    --text-disabled: #484f58;
    --text-link: var(--brand-primary);
    --text-link-hover: #79c0ff;

    /* -------------------------------------------------------------------------
     * Typography
     * ------------------------------------------------------------------------- */
    --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
    --font-family-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    /* Type Scale — SSOT (fluid: 320px → 1440px viewport)
       Based on Apple HIG / Material Design 3 / WCAG 2.1 AA standards.
       Formula: clamp(min, intercept + slope·vw, max)  [320–1440px range] */
    --text-3xs: clamp(0.625rem,  0.59rem + 0.18vw, 0.6875rem);    /* 10→11px — sparkline labels, micro UI */
    --text-2xs: clamp(0.6875rem, 0.65rem + 0.18vw, 0.75rem);      /* 11→12px — Apple caption2, dense cells */
    --text-xs:  clamp(0.75rem,   0.71rem + 0.18vw, 0.8125rem);    /* 12→13px — Apple caption1, badges */
    --text-sm:  clamp(0.8125rem, 0.76rem + 0.27vw, 0.9375rem);    /* 13→15px — Apple footnote, table headers */
    --text-base: clamp(0.875rem, 0.80rem + 0.36vw, 1.0625rem);    /* 14→17px — Apple body, MD body1 */
    --text-md:  clamp(1rem,      0.93rem + 0.36vw, 1.1875rem);    /* 16→19px — Apple callout, WCAG body min */
    --text-lg:  clamp(1.125rem,  1.02rem + 0.54vw, 1.375rem);     /* 18→22px — Apple title3, section heads */
    --text-xl:  clamp(1.25rem,   1.11rem + 0.71vw, 1.625rem);     /* 20→26px — Apple title2, subtitles */
    --text-2xl: clamp(1.5rem,    1.32rem + 0.89vw, 2rem);         /* 24→32px — Apple title1, page titles */
    --text-3xl: clamp(1.875rem,  1.59rem + 1.43vw, 2.625rem);     /* 30→42px — Apple largeTitle, hero */
    --text-4xl: clamp(2.25rem,   1.86rem + 1.96vw, 3.25rem);      /* 36→52px — display text */
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* Line Heights */
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Viewport Height — SSOT token for all height: 100vh references.
       Standalone pages: 100vh (full viewport).
       Split-pane panels: overridden to 100% (container height). */
    --viewport-h: 100vh;

    /* Terminal tab bar */
    --terminal-tab-h: 1.75rem;   /* 28px — tab bar height */
    --terminal-tab-active: var(--accent);
    --terminal-tab-inactive: var(--text-tertiary);

    /* -------------------------------------------------------------------------
     * Spacing Scale
     * ------------------------------------------------------------------------- */
    --space-0: 0;             /* 0px */
    --space-1: 0.25rem;      /* 4px */
    --space-2: 0.5rem;       /* 8px */
    --space-3: 0.75rem;      /* 12px */
    --space-4: 1rem;         /* 16px */
    --space-5: 1.25rem;      /* 20px */
    --space-6: 1.5rem;       /* 24px */
    --space-8: 2rem;         /* 32px */
    --space-16: 4rem;        /* 64px */

    /* -------------------------------------------------------------------------
     * Border Radius
     * ------------------------------------------------------------------------- */
    --radius-none: 0;
    --radius-2xs: 1px;
    --radius-xs: 2px;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 9999px;

    /* -------------------------------------------------------------------------
     * Shadows
     * ------------------------------------------------------------------------- */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.5);

    /* -------------------------------------------------------------------------
     * Transitions
     * ------------------------------------------------------------------------- */
    --transition-fast: 0.1s ease;
    --transition-base: 0.15s ease;
    --transition-medium: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* -------------------------------------------------------------------------
     * Z-Index Scale
     * ------------------------------------------------------------------------- */
    --z-local-sticky: 10;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-toast: 800;
    --z-skip-link: 900;
    --z-command-palette: 1000;

    /* -------------------------------------------------------------------------
     * Component-Specific Tokens
     * ------------------------------------------------------------------------- */
    /* Navigation */
    --nav-height: 48px;
    --nav-border: var(--border-default);

    /* Sidebar */

    /* Trading Layout — Column Proportions (SSOT)
       Breakpoint overrides are below :root {} (also in this file).
       MUST stay unlayered — layered :root variables lose to unlayered.
       terminal-pro.css consumes via var(). Never hardcode flex/gap elsewhere. */
    --col-main: 10;
    --col-insights: 2;
    --col-sidebar: 0;  /* Sidebar removed — space split between main and insights */
    --main-w: 66vw;    /* JS-set: actual #trading-main width via ResizeObserver */
    --chat-top: auto;  /* JS-set: bottom edge of position pagination element */
    --layout-gap: clamp(2px, 0.5vw, 8px);
    --layout-padding-x: clamp(2px, 0.5vw, 8px);

    /* Content */
    --content-max-width: 1200px;
    --content-padding: var(--space-6);

    /* -------------------------------------------------------------------------
     * Semantic Shorthand Tokens
     * Canonical definitions — overridden by core.css (app pages) and
     * terminal-pro.css (trading pages) with context-specific values.
     * ------------------------------------------------------------------------- */

    /* Extra surfaces */

    /* Opacity-based text (used by admin, monitor, base templates) */

    /* Accent */
    --accent: var(--brand-primary);
    --accent-contrast: var(--color-black);
    --accent-hover: var(--text-link-hover);
    --accent-muted: rgba(88, 166, 255, 0.15);

    /* Short-name semantic colors (positive/negative/warning/info) */
    --positive: var(--color-success);
    --negative: var(--color-danger);
    --warning: #9e6a03;

    /* Extra border */

    /* Font aliases (short names used by terminal-pro) */

    /* Nav extras */
    --nav-font: var(--font-family-mono);

    /* Data visualization colors */
    --data-positive: #10B981;
    --data-negative: #EF4444;
    --data-warning: #F59E0B;
    --data-info: #3B82F6;
    --data-cyan: #00ccff;
    --data-purple: #a78bfa;
    --data-accent: var(--binance-yellow);
    --data-btc: #f7931a;
    --data-positive-muted: rgba(16, 185, 129, 0.15);
    --data-negative-muted: rgba(239, 68, 68, 0.15);
    --data-warning-muted:  rgba(245, 158, 11, 0.15);
    --data-positive-mid:   rgba(16, 185, 129, 0.4);
    --data-positive-strong:rgba(16, 185, 129, 0.6);
    --data-negative-mid:   rgba(239, 68, 68, 0.3);
    --data-negative-strong:rgba(239, 68, 68, 0.5);
    --data-accent-muted:   rgba(240, 185, 11, 0.15);
    --data-accent-subtle:  rgba(240, 185, 11, 0.08);
    --data-accent-strong:  rgba(240, 185, 11, 0.3);
    --data-warning-mid:    rgba(245, 158, 11, 0.3);    /* warning border / hover medium */
    --color-info-mid:      rgba(59, 130, 246, 0.3);    /* info border medium */
    --data-purple-muted:   rgba(139, 92, 246, 0.08);   /* community / AI banner bg */
    --data-purple-mid:     rgba(139, 92, 246, 0.2);    /* community / AI banner border */
    --data-indigo-muted:   rgba(99, 102, 241, 0.15);   /* scan / log button bg */
    --data-indigo-mid:     rgba(99, 102, 241, 0.3);    /* scan / log button border */
    --data-indigo-hover:   rgba(99, 102, 241, 0.25);   /* scan / log button hover */

    /* -------------------------------------------------------------------------
     * Trading-specific semantic tokens
     * Use these instead of hardcoded hex in signal/RSI/TA components.
     * ------------------------------------------------------------------------- */
    --rsi-oversold:        var(--color-danger-text);    /* RSI < 30 zone */
    --rsi-overbought:      var(--color-purple);         /* RSI > 70 zone */

    /* -------------------------------------------------------------------------
     * Glass / Overlay — semi-transparent layers for dark-surface UI
     * 4 steps per axis: dim → low → mid → high  /  light → base → dark → deep
     * ------------------------------------------------------------------------- */
    --glass-dim:     rgba(255, 255, 255, 0.04);  /* near-invisible: row lines, micro-borders */
    --glass-low:     rgba(255, 255, 255, 0.06);  /* subtle: card/panel fill             */
    --glass-mid:     rgba(255, 255, 255, 0.10);  /* visible: hover, dividers            */
    --glass-high:    rgba(255, 255, 255, 0.20);  /* clear: badges, chips, strong borders */
    --glass-frosted: rgba(255, 255, 255, 0.40);  /* frosted: locked row overlays        */
    --overlay-light: rgba(0, 0, 0, 0.30);      /* light dimming                       */
    --overlay-base:  rgba(0, 0, 0, 0.50);      /* standard drawer / panel backdrop    */
    --overlay-dark:  rgba(0, 0, 0, 0.70);      /* heavy: modal, sheet                 */
    --overlay-deep:  rgba(0, 0, 0, 0.85);      /* near-solid: full-screen modal       */

    /* -------------------------------------------------------------------------
     * Extended State Surfaces
     * Deep/medium tinted backgrounds for callout cards, banners, status rows.
     * Dark mode: near-black tinted hues. Light mode: translucent pastel tints.
     * ------------------------------------------------------------------------- */
    --surface-success-deep:   #0d2818;
    --surface-success-medium: #1a2a0d;
    --surface-success-border: #3a5f1f;   /* dark green border for success banners */
    --surface-danger-deep:    #2d1117;
    --surface-danger-medium:  #2a1010;
    --surface-warning-deep:   #1c1c0d;
    --surface-warning-medium: #332200;
    --surface-info-deep:      #0d1a2d;
    --surface-info-medium:    #0f1724;
    --surface-info-border:    #1f3a5f;
    --surface-premium-deep:   #4c1d95;

    /* Ultra-dark surfaces — --surface-deep defined in :root above (line ~83) */

    /* Accent light — lighter tint of accent/binance for gradients, hover highlights */
    --accent-light: #FFD54F;

    /* -------------------------------------------------------------------------
     * Text on State Surfaces
     * Use these when text sits ON a tinted state background in dark mode.
     * Light mode swaps to legible dark-on-light equivalents.
     * ------------------------------------------------------------------------- */
    --text-on-success:       #e0ffe4;   /* bright mint — on dark green bg */
    --text-on-success-muted: #a7f3d0;   /* secondary green text */
    --text-on-success-vivid: #041509;   /* dark text ON vivid green button */
    --text-on-danger:        #ffb3c6;   /* soft pink — on dark red bg */
    --text-on-danger-muted:  #ffe4ea;   /* lighter pink */
    --text-on-warning:       #fde68a;   /* amber — on dark warning bg */
    --text-on-info:          #a5f3fc;   /* cyan — on dark blue bg */
    --text-on-info-muted:    #7dd3fc;   /* secondary blue text */
    --text-on-premium:       #e9d5ff;   /* lavender — on dark purple bg */

    /* -------------------------------------------------------------------------
     * Action Colors (trading action buttons, CTA greens)
     * ------------------------------------------------------------------------- */
    --action-green:       #047857;   /* default action green */
    --action-green-deep:  #065f46;   /* hover/pressed deep */
    --action-green-bright: #04d286;  /* brand signal accent */
    --action-green-vivid: #13ff6e;   /* vivid highlight/glow */

    /* -------------------------------------------------------------------------
     * Market Type Colors  (data-viz — constant across themes)
     * ------------------------------------------------------------------------- */
    --market-futures:          #56d4dd;
    --market-spot:             #f472b6;
    --market-forex:            #bc8cff;
    --market-commodities:      #a78bfa;
    --market-stocks:           #ef4444;
    --market-exotics:          #8b5cf6;
    --market-futures-muted:    rgba(86, 212, 221, 0.15);
    --market-spot-muted:       rgba(244, 114, 182, 0.15);
    --market-forex-muted:      rgba(188, 140, 255, 0.15);
    --market-commodities-muted: rgba(167, 139, 250, 0.15);
    --market-stocks-muted:     rgba(239, 68, 68, 0.15);
    --market-exotics-muted:    rgba(139, 92, 246, 0.15);

    /* -------------------------------------------------------------------------
     * Special / Brand Colors  (constant across themes)
     * ------------------------------------------------------------------------- */
    --binance-yellow: #F0B90B;
    --rank-gold:      #ffd700;
    --rank-silver:    #c0c0c0;
    --rank-bronze:    #cd7f32;
    --brand-reddit:   #ff4500;

    /* Landing page 3D hero (always dark, theme-independent) */
    --bg-deep:        #000000;
    --bg-space:       #0a0a0f;
    --bg-abyss:       #000510;
    --accent-cyan:    #00f0ff;
    --accent-magenta: #ff00ff;
    --accent-green:   #7CFF8A;
    --accent-green-mid:#58D96D;
    --accent-green-dk: #3FB950;
    --glass-bg:        rgba(255, 255, 255, 0.03);
    --glass-border:    rgba(255, 255, 255, 0.1);
    --accent-purple:   #7c3aed;
    --accent-amber:    #d97706;

    /* Preview browser mock (landing page — always dark, theme-independent) */
    --pb-bg:          #0f172a;
    --pb-border:      #334155;
    --pb-text:        #f1f5f9;
    --pb-text-muted:  #94a3b8;
    --pb-text-dim:    #64748b;
    --pb-label:       #475569;
    --pb-active:      #93c5fd;
    --pb-dot-close:   #ef4444;
    --pb-dot-minimize:#f59e0b;
}

/* Trading Layout — Breakpoint overrides for SSOT variables.
   MUST be in design-system.css (unlayered) — layered mobile.css :root would lose. */
@media (max-width: 1400px) {
    :root { --col-insights: 2; --layout-gap: 4px; }
}
@media (max-width: 1200px) {
    :root { --col-insights: 1.8; --layout-gap: 3px; }
}
@media (max-width: 960px) {
    :root { --col-insights: 1.5; --layout-gap: 2px; --layout-padding-x: 4px; }
}
@media (max-width: 480px) {
    :root { --layout-padding-x: 2px; }
}

/* =============================================================================
 * WIDGET GRID — SSOT for all grid layout contexts
 * Consumers set --wg-cols, --wg-rows, --wg-height via their own scope.
 * Override: Set the custom properties, NOT the grid properties directly.
 * ============================================================================= */
:root {
    --wg-cols: 2;
    --wg-rows: 8;
    --wg-height: calc(var(--viewport-h, 100vh) - 36px);
}
.widget-grid {
    display: grid;
    grid-template-columns: repeat(var(--wg-cols), 1fr);
    grid-template-rows: repeat(var(--wg-rows), 1fr);
    gap: 1px;
    height: var(--wg-height);
    overflow: hidden;
    background: var(--border-subtle);
    padding: 0;
}
/* Stack two widgets vertically in one grid cell (50/50 split) */
.widget-stack {
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    background: var(--border-subtle);
}
.widget-stack > .widget,
.widget-stack > [data-widget] {
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
/* Insights sidebar (trading page): 1 col × 3 rows */
.insights-column .widget-grid {
    --wg-cols: 1;
    --wg-rows: 3;
    --wg-height: 100%;
}

/* Trading Terminal — Bloomberg-style token overrides (scoped to trading page).
   Unlayered so they win over layered CSS; .trading-layout scope limits blast radius. */
.trading-layout {
    /* Radius: all zero for Bloomberg sharp corners */
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;

    /* Shadows: transparent-base */
    --shadow-sm: 0 1px 3px var(--overlay-light);
    --shadow-md: 0 4px 6px var(--overlay-base);
    --shadow-lg: 0 10px 15px var(--overlay-base);

    /* Transitions */
    --transition-base: 0.2s ease;

    /* Semantic data aliases */
    --positive: var(--color-success);
    --negative: var(--color-danger);
    --warning: var(--color-warning-text);

    /* Accent (gold) */
    --accent: var(--binance-yellow);
    --accent-hover: var(--brand-gold);
    --accent-muted: var(--data-accent-muted);

    /* Form controls: compact padding for terminal density */
    --input-py: 2px;
    --input-px: 4px;

    /* Letter-spacing scale (terminal monospace tightening) */
    --tracking-tight: 0.3px;
    --tracking-normal: 0.5px;
    --tracking-wide: 1px;
    --tracking-wider: 2px;

    /* Line-height scale (compact data rows) */
    --leading-none: 1;
    --leading-tight: 1.2;
    --leading-snug: 1.4;
    --leading-normal: 1.5;
    --leading-relaxed: 1.65;

    /* Component dimensions */
    --control-height: 36px;

    /* Panel radius (backtest/premium panels get rounded corners unlike terminal 0px) */
    --radius-panel: 4px;
}

/* CVD (Color Vision Deficiency) mode — deuteranopia-safe blue/orange palette */
[data-cvd="on"] {
    --data-positive: #2196F3;
    --data-negative: #FF9800;
    --data-positive-muted: rgba(33, 150, 243, 0.15);
    --data-negative-muted: rgba(255, 152, 0, 0.15);
    --data-positive-mid: rgba(33, 150, 243, 0.4);
    --data-positive-strong: rgba(33, 150, 243, 0.6);
    --data-negative-mid: rgba(255, 152, 0, 0.3);
    --data-negative-strong: rgba(255, 152, 0, 0.5);
}

/* =============================================================================
 * 1b. LIGHT THEME OVERRIDES
 * =============================================================================
 * Activated via html[data-theme="light"]. Default (no attr / "dark") stays unchanged.
 */
html[data-theme="light"] {
    /* Surfaces */
    --surface-base: #f6f8fa;
    --surface-overlay: #ffffff;
    --surface-raised: #eaeef2;
    --surface-sunken: #f0f3f6;
    --surface-hover: rgba(60, 70, 80, 0.08);
    --surface-active: rgba(60, 70, 80, 0.14);

    /* Text */
    --text-primary: #1f2328;
    --text-secondary: #656d76;
    --text-tertiary: #8b949e;
    --text-disabled: #afb8c1;
    --text-link: #0969da;
    --text-link-hover: #0550ae;

    /* Borders */
    --border-default: #d0d7de;
    --border-muted: #eaeef2;
    --border-subtle: rgba(31, 35, 40, 0.08);
    --border-emphasis: #afb8c1;

    /* Semantic — FerroQuant light theme: navy replaces green for branding */
    --color-success: #1b3a6b;
    --color-success-emphasis: #0f2244;
    --color-success-subtle: rgba(27, 58, 107, 0.08);
    --color-success-text: #1b3a6b;

    --color-warning-subtle: rgba(154, 103, 0, 0.1);
    --color-warning-text: #9a6700;

    --color-danger: #cf222e;
    --color-danger-emphasis: #d1242f;
    --color-danger-subtle: rgba(207, 34, 46, 0.1);
    --color-danger-text: #cf222e;

    --color-info: #0969da;
    --color-info-emphasis: #0550ae;
    --color-info-subtle: rgba(9, 105, 218, 0.1);
    --color-info-text: #0969da;

    /* Brand — slightly darker for light bg contrast */
    --brand-primary: #0969da;
    --brand-secondary: #1a7f37;
    --brand-accent: #c45d1a;       /* Orange - darker for light bg contrast */
    --color-purple: #6639ba;
    --color-purple-dark: #4c1d95;  /* Deep purple - upgrade gradients */

    /* Navigation */
    --nav-border: #d0d7de;

    /* Sidebar */

    /* Data visualization */
    --data-positive: #1a7f37;
    --data-negative: #cf222e;
    --data-warning: #9a6700;
    --data-info: #0969da;
    --data-cyan: #0077aa;
    --data-purple: #7c3aed;
    --data-accent: #b45309;
    --data-btc: #c8600e;
    --data-positive-muted: rgba(26, 127, 55, 0.12);
    --data-negative-muted: rgba(207, 34, 46, 0.12);

    /* Trading-specific tokens — light-mode overrides */
    --rsi-oversold:        var(--color-danger-text);
    --rsi-overbought:      var(--color-purple);

    /* Shadows (lighter for light mode) */
    --shadow-sm: 0 1px 3px rgba(31, 35, 40, 0.06);
    --shadow-md: 0 4px 8px rgba(31, 35, 40, 0.1);
    --shadow-lg: 0 8px 16px rgba(31, 35, 40, 0.12);
    --shadow-xl: 0 16px 32px rgba(31, 35, 40, 0.14);

    /* Data visualization — additional tokens */

    /* Terminal-pro tokens (used on trading/backtest pages) */
    --accent-hover: #0550ae;
    --accent-muted: rgba(9, 105, 218, 0.12);
    --positive: #1a7f37;
    --negative: #cf222e;
    --warning: #9a6700;

    /* App-context tokens (consolidated from core.css light block) */
    --accent: #0969da;
    --accent-contrast: #ffffff;

    /* Skeletons */
    color-scheme: light;

    /* Extended state surfaces — light mode */
    --surface-success-deep:   rgba(26, 127, 55, 0.08);
    --surface-success-medium: rgba(26, 127, 55, 0.12);
    --surface-success-border: rgba(26, 127, 55, 0.35);
    --surface-danger-deep:    rgba(207, 34, 46, 0.08);
    --surface-danger-medium:  rgba(207, 34, 46, 0.12);
    --surface-warning-deep:   rgba(154, 103, 0, 0.08);
    --surface-warning-medium: rgba(154, 103, 0, 0.12);
    --surface-info-deep:      rgba(9, 105, 218, 0.08);
    --surface-info-medium:    rgba(9, 105, 218, 0.12);
    --surface-info-border:    rgba(9, 105, 218, 0.3);
    --surface-premium-deep:   rgba(88, 28, 135, 0.08);

    /* Ultra-dark surfaces → light equivalents */
    --surface-deep: #f0f3f6;

    /* Text on state surfaces — light mode */
    --text-on-success:       #1a7f37;
    --text-on-success-muted: #238636;
    --text-on-success-vivid: #ffffff;
    --text-on-danger:        #cf222e;
    --text-on-danger-muted:  #d1242f;
    --text-on-warning:       #9a6700;
    --text-on-info:          #0969da;
    --text-on-info-muted:    #1f6feb;
    --text-on-premium:       #6f42c1;

    /* Action greens — slightly shifted for light mode legibility */
    --action-green:        #065f46;
    --action-green-deep:   #047857;
    --action-green-bright: #0d9668;
    --action-green-vivid:  #10b981;
}

html[data-theme="light"] body {
    background: var(--surface-base);
    color: var(--text-primary);
}

html[data-theme="light"] .skeleton {
    background: linear-gradient(90deg, #eaeef2 25%, #f6f8fa 50%, #eaeef2 75%);
    background-size: 200% 100%;
}

/* =============================================================================
 * 2. RESET & BASE STYLES
 * =============================================================================
 */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--text-md);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background: var(--surface-base);
    min-height: var(--viewport-h);
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

/* Global focus-visible indicator for keyboard navigation (a11y) */
:focus-visible {
    outline: 2px solid var(--brand-primary, #58a6ff);
    outline-offset: 2px;
}

/* Skip navigation link (a11y) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--brand-primary, #58a6ff);
    color: #fff;
    padding: 8px 16px;
    z-index: var(--z-skip-link);
    transition: top var(--transition-medium);
}
.skip-link:focus {
    top: 0;
}

a {
    color: var(--text-link);
    text-decoration: none;
}

a:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

/* =============================================================================
 * 3. TYPOGRAPHY
 * =============================================================================
 */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-semibold);
    line-height: 1.25;
    color: var(--text-primary);
}

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-md { font-size: var(--text-md); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-muted { color: var(--text-tertiary); }
.text-success { color: var(--color-success-text); }
.text-warning { color: var(--color-warning-text); }
.text-danger { color: var(--color-danger-text); }
.text-info { color: var(--color-info-text); }
.text-positive { color: var(--positive); }
.text-negative { color: var(--negative); }
.text-accent { color: var(--accent); }

.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.font-mono { font-family: var(--font-family-mono); }
.font-sans { font-family: var(--font-family-sans); }
.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.tracking-wide { letter-spacing: 0.5px; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.bg-positive { background: var(--data-positive-muted); }
.bg-negative { background: var(--data-negative-muted); }
.bg-warning { background: var(--color-warning-subtle); }
.bg-info { background: var(--color-info-subtle); }

/* =============================================================================
 * 4. LAYOUT & GRID
 * =============================================================================
 */
.container {
    width: 100%;
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 0 var(--content-padding);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--content-padding);
}

.page {
    padding: var(--space-6);
}

.page-header {
    margin-bottom: var(--space-8);
}

.page-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.page-subtitle {
    font-size: var(--text-base);
    color: var(--text-secondary);
}

/* Flexbox Utilities */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* Grid */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 768px) {
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* =============================================================================
 * 5. NAVIGATION (Global Header)
 * =============================================================================
 */
.nav {
    background: var(--surface-overlay);
    border-bottom: 1px solid var(--nav-border);
    height: var(--nav-height);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.nav__inner {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 var(--space-5);
    gap: var(--space-6);
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    text-decoration: none;
}

.nav__logo img {
    height: 24px;
    width: auto;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    flex: 1;
}

.nav__link {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
}

.nav__link:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
    text-decoration: none;
}

.nav__link--active {
    color: var(--text-primary);
    background: var(--surface-active);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* =============================================================================
 * 5b. BRAND LOGO (Global Component)
 * =============================================================================
 * Reusable logo component: icon + text in Space Grotesk
 * Sizes: --sm (auth pages), --md (nav), --lg (marketing)
 */
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none !important;
    color: inherit;
}

.brand-logo:hover {
    text-decoration: none !important;
    color: inherit;
}

.brand-logo__icon {
    flex-shrink: 0;
    display: block;
}

.brand-logo__text {
    font-family: var(--font-family-heading) !important;
    font-weight: var(--font-bold) !important;
    color: #ffffff !important;
    letter-spacing: -0.02em;
}

/* Size variants - FIXED px values to prevent terminal-pro.css overriding via CSS vars */
.brand-logo--sm .brand-logo__icon { width: 24px; height: 24px; }
.brand-logo--sm .brand-logo__text { font-size: var(--text-lg); }

.brand-logo--md .brand-logo__icon { width: 28px; height: 28px; }
.brand-logo--md .brand-logo__text { font-size: var(--text-xl); }

.brand-logo--lg .brand-logo__icon { width: 40px; height: 40px; }
.brand-logo--lg .brand-logo__text { font-size: var(--text-2xl); }

.brand-logo--xl .brand-logo__icon { width: 48px; height: 48px; }
.brand-logo--xl .brand-logo__text { font-size: var(--text-3xl); }

/* Centered variant (for auth/marketing pages) */
.brand-logo--centered {
    display: flex;
    justify-content: center;
}

/* Auth/marketing form centering — hide text, show only icon centered */
.auth-header .brand-logo__text,
.waitlist-header .brand-logo__text,
.pricing-header .brand-logo__text {
    display: none;
}

/* Drop shadow for dark backgrounds */
.brand-logo__icon--shadow {
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

/* Light theme: invert white icon to dark (login, signup, pricing, etc.) */
html[data-theme="light"] .brand-logo__icon--shadow {
    filter: invert(1);
}

/* =============================================================================
 * 6. CARDS & PANELS
 * =============================================================================
 */
.card {
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card--hover {
    transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), opacity var(--transition-base), box-shadow var(--transition-base);
}

.card--hover:hover {
    border-color: var(--border-emphasis);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card__header {
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card__title {
    font-size: var(--text-md);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.card__body {
    padding: var(--space-5);
}

.card__footer {
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--border-muted);
    background: var(--surface-sunken);
}

/* Panel - larger sections */
.panel {
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
}

.panel__header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-muted);
}

.panel__body {
    padding: var(--space-6);
}

/* Stats Card */
.stat-card {
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.stat-card__label {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-1);
}

.stat-card__value {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.stat-card__change {
    font-size: var(--text-sm);
    margin-top: var(--space-1);
}

.stat-card__change--positive { color: var(--color-success-text); }
.stat-card__change--negative { color: var(--color-danger-text); }

/* =============================================================================
 * 7. BUTTONS
 * =============================================================================
 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid transparent; /* transparent preserves design; visible in Windows High Contrast Mode */
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

/* Secondary Button */
.btn--secondary {
    background: var(--surface-raised);
    border-color: var(--border-default);
    color: var(--text-primary);
}
.btn--secondary:hover {
    background: var(--border-default);
    border-color: var(--border-emphasis);
}

/* Danger Button */
.btn--danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
    color: var(--color-white);
}
.btn--danger:hover {
    background: var(--color-danger-emphasis);
    border-color: var(--color-danger-emphasis);
}

/* Ghost Button */
.btn--ghost {
    background: transparent;
    border-color: transparent;
    color: var(--text-secondary);
}
.btn--ghost:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

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

/* Link Button */
.btn--link {
    background: transparent;
    border: none;
    color: var(--text-link);
    padding: 0;
}
.btn--link:hover {
    color: var(--text-link-hover);
    text-decoration: underline;
}

/* Size Variants */
.btn--xs {
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
}

.btn--sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
}

.btn--lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-md);
}

/* Icon Button */
.btn--icon {
    padding: var(--space-2);
    width: 36px;
    height: 36px;
}

.btn--icon.btn--sm {
    width: 28px;
    height: 28px;
    padding: var(--space-1);
}

/* =============================================================================
 * 8. FORMS
 * =============================================================================
 */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-label.required::after {
    content: " *";
    color: var(--color-danger-text);
}

.form-hint {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    color: var(--text-primary);
    background: var(--surface-sunken);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: 2px solid transparent;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.form-input::placeholder {
    color: var(--text-disabled);
}

.form-input--error {
    border-color: var(--color-danger);
}

.form-error {
    font-size: var(--text-xs);
    color: var(--color-danger-text);
    margin-top: var(--space-1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b949e' d='M3 4.5L6 7.5L9 4.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-8);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-check-input {
    width: 16px;
    height: 16px;
    accent-color: var(--brand-primary);
}

.form-check-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* =============================================================================
 * 9. TABLES
 * =============================================================================
 */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--border-muted);
}

.table th {
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    background: var(--surface-sunken);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    color: var(--text-primary);
}

.table tbody tr:hover {
    background: var(--surface-hover);
}

.table--striped tbody tr:nth-child(even) {
    background: var(--surface-sunken);
}

.table--compact th,
.table--compact td {
    padding: var(--space-2) var(--space-3);
}

/* =============================================================================
 * 10. BADGES & TAGS
 * =============================================================================
 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge--default {
    background: var(--border-default);
    color: var(--text-secondary);
}

.badge--primary {
    background: var(--color-info-subtle);
    color: var(--color-info-text);
}

.badge--success {
    background: var(--color-success-subtle);
    color: var(--color-success-text);
}

.badge--warning {
    background: var(--color-warning-subtle);
    color: var(--color-warning-text);
}

.badge--danger {
    background: var(--color-danger-subtle);
    color: var(--color-danger-text);
}

/* Tier Badges */
.badge--free {
    background: var(--border-default);
    color: var(--text-secondary);
}

.badge--pro {
    background: var(--color-info-subtle);
    color: var(--color-info-text);
}

.badge--enterprise {
    background: rgba(255, 215, 0, 0.15);
    color: var(--brand-gold);
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
    background: var(--surface-raised);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.tag__remove {
    cursor: pointer;
    opacity: 0.6;
}

.tag__remove:hover {
    opacity: 1;
}

/* =============================================================================
 * 11. ALERTS & NOTIFICATIONS
 * =============================================================================
 */
.alert {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
}

.alert__icon {
    flex-shrink: 0;
    font-size: var(--text-md);
}

.alert__content {
    flex: 1;
}

.alert__title {
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.alert--info {
    background: var(--color-info-subtle);
    border: 1px solid rgba(88, 166, 255, 0.3);
    color: var(--color-info-text);
}

.alert--success {
    background: var(--color-success-subtle);
    border: 1px solid rgba(46, 160, 67, 0.3);
    color: var(--color-success-text);
}

.alert--warning {
    background: var(--color-warning-subtle);
    border: 1px solid rgba(187, 128, 9, 0.3);
    color: var(--color-warning-text);
}

.alert--danger {
    background: var(--color-danger-subtle);
    border: 1px solid rgba(248, 81, 73, 0.3);
    color: var(--color-danger-text);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-toast);
    min-width: 300px;
    max-width: 400px;
}

.toast__item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-top: var(--space-3);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* =============================================================================
 * 12. CODE BLOCKS
 * =============================================================================
 */
code {
    font-family: var(--font-family-mono);
    font-size: 0.9em;
    padding: 2px 6px;
    background: var(--surface-sunken);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

pre {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    background: var(--surface-sunken);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    overflow-x: auto;
}

pre code {
    padding: 0;
    background: transparent;
    border: none;
}

.code-block {
    position: relative;
    background: var(--surface-sunken);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.code-block__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-4);
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border-muted);
}

.code-block__lang {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-family: var(--font-family-mono);
}

.code-block__copy {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.code-block__copy:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.code-block__body {
    padding: var(--space-4);
    overflow-x: auto;
}

/* Syntax Highlighting */
.token-keyword { color: #ff7b72; }
.token-string { color: #a5d6ff; }
.token-number { color: #79c0ff; }
.token-comment { color: var(--text-tertiary); }
.token-property { color: #7ee787; }
.token-function { color: #d2a8ff; }
.token-operator { color: #ff7b72; }

/* =============================================================================
 * 13. MODALS
 * =============================================================================
 */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
}

.modal {
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    z-index: var(--z-modal);
}

.modal--lg { max-width: 700px; }
.modal--xl { max-width: 900px; }

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--border-muted);
}

.modal__title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
}

.modal__close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
}

.modal__close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.modal__body {
    padding: var(--space-5);
    overflow-y: auto;
    flex: 1;
}

.modal__footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-top: 1px solid var(--border-muted);
    background: var(--surface-sunken);
}

/* =============================================================================
 * 14. UTILITIES
 * =============================================================================
 */
/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Spacing */
.m-0 { margin: 0; }
.m-1 { margin: var(--space-1); }
.m-2 { margin: var(--space-2); }
.m-3 { margin: var(--space-3); }
.m-4 { margin: var(--space-4); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0; }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }

.px-2 { padding-left: var(--space-2); padding-right: var(--space-2); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }

/* Width/Height */
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: var(--viewport-h); }

/* Border */
.border { border: 1px solid var(--border-default); }
.border-t { border-top: 1px solid var(--border-default); }
.border-b { border-bottom: 1px solid var(--border-default); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Background */
.bg-surface { background: var(--surface-overlay); }
.bg-sunken { background: var(--surface-sunken); }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Divider */
.divider {
    height: 1px;
    background: var(--border-default);
    margin: var(--space-4) 0;
}

/* =============================================================================
 * 15. ANIMATIONS
 * =============================================================================
 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

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

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.animate-fadeIn { animation: fadeIn 0.2s ease; }
.animate-slideUp { animation: slideUp 0.2s ease; }
.animate-slideDown { animation: slideDown 0.2s ease; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--surface-raised) 25%, var(--border-default) 50%, var(--surface-raised) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Skeleton size variants */
.skeleton-text { height: 14px; margin-bottom: 8px; }
.skeleton-text-lg { height: 20px; margin-bottom: 10px; }
.skeleton-card { height: 120px; }
.skeleton-row { height: 40px; margin-bottom: 4px; }
.skeleton-chart { height: 400px; }
.skeleton-hidden { display: none; }

/* =============================================================================
 * RESPONSIVE BREAKPOINTS
 * =============================================================================
 * sm: 640px
 * md: 768px
 * lg: 1024px
 * xl: 1280px
 * 2xl: 1536px
 */
@media (max-width: 768px) {
    :root {
        --content-padding: var(--space-4);
    }

    .nav__links {
        display: none;
    }

    .page {
        padding: var(--space-4);
    }
}

/* =============================================================================
 * 16. BLOOMBERG ENHANCEMENT LAYER
 * =============================================================================
 * Professional terminal aesthetic tokens and utilities.
 * Data visualization tokens are in the main :root block above.
 */

/* Cell flash animations (price tick visual feedback) */
@keyframes flash-up { 0% { background: var(--data-positive-muted); } 100% { background: transparent; } }
@keyframes flash-down { 0% { background: var(--data-negative-muted); } 100% { background: transparent; } }
.cell-flash-up { animation: flash-up 0.8s ease-out; }
.cell-flash-down { animation: flash-down 0.8s ease-out; }

/* Freshness dots (per-symbol data age indicator) */
.freshness-dot {
    width: 6px; height: 6px; border-radius: 50%;
    display: inline-block; vertical-align: middle; margin-right: 4px;
}
.freshness-dot--fresh { background: var(--data-positive); }
.freshness-dot--aging { background: var(--data-positive); opacity: 0.6; }
.freshness-dot--stale { background: var(--data-warning); animation: pulse-dot 1.5s infinite; }
.freshness-dot--dead  { background: var(--data-negative); }
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

/* =============================================================================
 * SPLIT-PANE TERMINAL LAYOUT
 * =============================================================================
 * Container-query-aware typography: text scales per-pane, not per-viewport.
 * Each .split-pane-panel is a CSS container; children use cqi units so
 * 50/50, 60/40, 70/30 splits all get correct text sizing automatically.
 * Fallback: browsers without cqi support get the vw-based :root tokens. */

.split-layout {
    --split-left: 1fr;
    --split-right: 1fr;
    --drag-left: 50%;
    --drag-right: 50%;
    display: grid;
    grid-template-columns: var(--split-left) 6px var(--split-right);
    /* Height comes from flex parent (.content), NOT viewport.
       Using 100vh here breaks when nested inside flex containers. */
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

/* Preset ratios (data-ratio attribute) */
.split-layout[data-ratio="50-50"] { --split-left: 1fr; --split-right: 1fr; }
.split-layout[data-ratio="60-40"] { --split-left: 3fr; --split-right: 2fr; }
.split-layout[data-ratio="70-30"] { --split-left: 7fr; --split-right: 3fr; }

/* During drag, JS sets pixel values via custom properties */
.split-layout.dragging {
    grid-template-columns: var(--drag-left) 6px var(--drag-right);
    user-select: none;
}

.split-pane-panel {
    container-type: inline-size;
    container-name: panel;
    overflow: hidden;
    min-width: 0;
    /* Override viewport token: children use 100% of panel, not 100vh of viewport */
    --viewport-h: 100%;
    min-height: 0;
}

/* Gutter (drag handle between panes) */
.split-gutter {
    background: transparent;
    cursor: col-resize;
    touch-action: none;
    transition: background 0.15s ease;
    position: relative;
    z-index: 10;
}
.split-gutter:hover,
.split-gutter.active { background: var(--brand-primary); }

/* Terminal tab bar — right panel tabs (SSOT: tokens in :root) */
.terminal-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border-default);
    flex-shrink: 0;
    height: var(--terminal-tab-h);
    font-family: var(--font-family-mono);
    background: var(--surface-base);
}
.terminal-tab {
    padding: 4px 12px;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--terminal-tab-inactive);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: var(--tracking-normal);
    white-space: nowrap;
    transition: color 0.15s ease;
}
.terminal-tab:hover { color: var(--text-primary); }
.terminal-tab.active {
    color: var(--terminal-tab-active);
    border-bottom-color: var(--terminal-tab-active);
}
.terminal-tab-panels {
    flex: 1;
    min-height: 0;
    position: relative;
    overflow: hidden;
}
.terminal-tab-panel {
    content-visibility: hidden;
    contain-intrinsic-size: auto 100%;
    position: absolute;
    inset: 0;
    overflow: auto;
    pointer-events: none;
    z-index: 0;
}
.terminal-tab-panel.active {
    content-visibility: visible;
    position: relative;
    pointer-events: auto;
    z-index: 1;
}

/* Container-aware fluid typography (cqi = container query inline).
   Slopes are ~2x the vw slopes: in a 50/50 split, 1cqi ≈ 0.5vw,
   so double the coefficient to maintain equivalent scaling per-pane.
   Clamp min/max bounds are identical to :root — same readable range. */
@supports (font-size: 1cqi) {
    .split-pane-panel {
        --text-3xs: clamp(0.625rem,  0.59rem + 0.36cqi, 0.6875rem);
        --text-2xs: clamp(0.6875rem, 0.65rem + 0.36cqi, 0.75rem);
        --text-xs:  clamp(0.75rem,   0.71rem + 0.36cqi, 0.8125rem);
        --text-sm:  clamp(0.8125rem, 0.76rem + 0.54cqi, 0.9375rem);
        --text-base: clamp(0.875rem, 0.80rem + 0.71cqi, 1.0625rem);
        --text-md:  clamp(1rem,      0.93rem + 0.71cqi, 1.1875rem);
        --text-lg:  clamp(1.125rem,  1.02rem + 1.07cqi, 1.375rem);
        --text-xl:  clamp(1.25rem,   1.11rem + 1.43cqi, 1.625rem);
        --text-2xl: clamp(1.5rem,    1.32rem + 1.79cqi, 2rem);
        --text-3xl: clamp(1.875rem,  1.59rem + 2.86cqi, 2.625rem);
        --text-4xl: clamp(2.25rem,   1.86rem + 3.93cqi, 3.25rem);
    }
    body.compact-mode .split-pane-panel {
        --text-xs:   clamp(0.625rem,  0.59rem + 0.28cqi, 0.6875rem);
        --text-sm:   clamp(0.6875rem, 0.65rem + 0.28cqi, 0.75rem);
        --text-base: clamp(0.75rem,   0.71rem + 0.28cqi, 0.8125rem);
    }
}

/* Compact mode (Ctrl+D toggle — ~30% denser for power users) */
body.compact-mode { --text-xs: clamp(0.625rem, 0.59rem + 0.14vw, 0.6875rem); --text-sm: clamp(0.6875rem, 0.65rem + 0.14vw, 0.75rem); --text-base: clamp(0.75rem, 0.71rem + 0.14vw, 0.8125rem); }
body.compact-mode table td { padding: 2px 4px; font-size: var(--text-xs); }
body.compact-mode table th { padding: 2px 4px; font-size: var(--text-2xs); }

/* =============================================================================
 * PANEL HEADER — SSOT for ALL panel/widget/section headers
 * Consumers: .section-header, .widget-header, .panel-header, .backtest-header
 * Override: NONE. Change this block, change everywhere.
 * ============================================================================= */
.fq-panel-header,
.section-header,
.widget-header,
.panel-header,
.backtest-header,
.market-snapshot__header {
    display: flex;
    align-items: center;
    height: 20px;
    min-height: 20px;
    max-height: 20px;
    padding: 0 var(--space-1);
    background: var(--surface-raised);
    border-bottom: 1px solid var(--border-subtle);
    gap: var(--space-1);
    flex-shrink: 0;
    overflow: hidden;
    font-family: var(--font-family-mono);
    user-select: none;
}
.fq-panel-header__title,
.section-title,
.widget-header__title {
    font-size: var(--text-2xs);
    font-weight: var(--font-bold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0;
}

/* =============================================================================
 * CHART CONTAINER HEIGHT — SSOT
 * TradingView widget sets inline style height:calc(100vh-40px) which breaks
 * flex layouts. This !important is intentional: we own the container height,
 * the third-party widget should not override our layout.
 * ============================================================================= */
#live-chart-container {
    height: 100% !important;
}

/* Panel header controls (↻ ▁ ↗) — SSOT for button size, alignment, color */
.fq-panel-header__controls,
.widget-header__controls {
    display: flex;
    align-items: center;
    gap: 1px;
    margin-left: auto;
    flex-shrink: 0;
}
.fq-panel-header__btn,
.widget-header__btn {
    width: var(--space-4);
    height: var(--space-4);
    min-width: var(--space-4);
    min-height: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-size: var(--text-2xs);
    cursor: pointer;
    padding: 0;
    line-height: var(--leading-none);
    font-family: var(--font-family-mono);
    transition: color var(--transition-fast);
}
.fq-panel-header__btn:hover,
.widget-header__btn:hover {
    color: var(--text-primary);
}

/* Professional table styling (Bloomberg-inspired) */
.fq-table { border-collapse: collapse; width: 100%; font-size: var(--text-sm); font-family: var(--font-family-mono); }
.fq-table th {
    text-transform: uppercase; font-size: var(--text-3xs); letter-spacing: 0.05em;
    color: var(--text-tertiary); border-bottom: 1px solid var(--border-subtle);
    padding: 6px 8px; text-align: left; font-weight: var(--font-medium);
    position: sticky; top: 0; background: var(--surface-base); z-index: 1;
}
.fq-table td { padding: 4px 8px; border-bottom: 1px solid rgba(255,255,255,0.03); transition: background var(--transition-fast); }
.fq-table tr:hover td { background: rgba(255,255,255,0.02); }
.fq-table .fq-table__cell--positive { color: var(--data-positive); }
.fq-table .fq-table__cell--negative { color: var(--data-negative); }
.fq-table .fq-table__cell--mono { font-variant-numeric: tabular-nums; }

/* Disconnected banner (global connectivity indicator) */
.fq-disconnect-banner {
    position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-toast);
    background: var(--data-warning); color: #000; text-align: center; padding: 4px;
    font-size: var(--text-xs); font-family: var(--font-family-mono);
    display: none; transform: translateY(-100%); transition: transform var(--transition-slow);
}
.fq-disconnect-banner.visible { display: block; transform: translateY(0); }

/* RSI heatmap cell colors (5-tier) */
.rsi-cell--oversold   { background: #1e9884; color: #fff; }
.rsi-cell--weak       { background: #165952; color: #ccc; }
.rsi-cell--neutral    { background: #78797a; color: #fff; }
.rsi-cell--strong     { background: #79212c; color: #ccc; }
.rsi-cell--overbought { background: #cf2f3d; color: #fff; }
.rsi-cell--consensus  { animation: pulse-dot 1.5s infinite; font-weight: var(--font-bold); }

/* Sortable table headers */
.fq-table th[data-sort] { cursor: pointer; user-select: none; }
.fq-table th[data-sort]:hover { color: var(--text-primary); }
.fq-table th[data-sort]::after { content: ''; margin-left: 4px; }
.fq-table th[data-sort].sort-asc::after { content: '\25B2'; font-size: var(--text-3xs); }
.fq-table th[data-sort].sort-desc::after { content: '\25BC'; font-size: var(--text-3xs); }

/* Command palette overlay */
.fq-command-palette {
    position: fixed; inset: 0; z-index: var(--z-command-palette);
    background: rgba(0,0,0,0.6); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
    display: flex; align-items: flex-start; justify-content: center;
    padding-top: 20vh;
}
.fq-command-palette__box {
    width: min(560px, 90vw); background: var(--surface-overlay);
    border: 1px solid var(--border-default); border-radius: var(--radius-lg);
    box-shadow: 0 16px 48px rgba(0,0,0,0.4); overflow: hidden;
}
.fq-command-palette__input {
    width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--border-subtle);
    padding: 14px 16px; color: var(--text-primary); font-size: var(--text-md);
    font-family: var(--font-family-mono); outline: 2px solid transparent;
}
.fq-command-palette__input:focus {
    border-bottom-color: var(--brand-primary, #58a6ff);
}
.fq-command-palette__results {
    max-height: 320px; overflow-y: auto; padding: 4px 0;
}
.fq-command-palette__item {
    padding: 8px 16px; cursor: pointer; display: flex; align-items: center; gap: 10px;
    font-size: var(--text-sm); color: var(--text-secondary); transition: background var(--transition-fast);
}
.fq-command-palette__item:hover, .fq-command-palette__item.active {
    background: var(--surface-hover); color: var(--text-primary);
}
.fq-command-palette__item-label { flex: 1; }
.fq-command-palette__item-shortcut { font-size: var(--text-xs); color: var(--text-tertiary); font-family: var(--font-family-mono); }

/* Connection status indicator (nav bar) */
.connection-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-3xs);
    font-family: var(--font-family-mono);
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}
.connection-status__dot {
    width: 6px; height: 6px; border-radius: 50%; display: inline-block;
}
.connection-status__dot--live { background: var(--data-positive, #10B981); }
.connection-status__dot--polling { background: var(--data-warning, #F59E0B); animation: pulse-dot 1.5s infinite; }
.connection-status__dot--disconnected { background: var(--data-negative, #EF4444); }
.connection-status__dot--init { background: var(--text-tertiary, #718096); }
.connection-status__label { text-transform: uppercase; font-weight: var(--font-semibold); }

/* ===== Public Page Footer (shared across all marketing/public pages) ===== */
.footer { border-top: 1px solid #e0e0e0; padding: 32px 48px; text-align: center; margin-top: 48px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 8px; margin-bottom: 8px; }
.footer-links a { color: #656d76; text-decoration: none; font-size: var(--text-base); padding: 8px 10px; }
.footer-links a:hover { color: #1f2328; }
.footer-copy { color: #656d76; font-size: var(--text-sm); margin: 0; }
@media (max-width: 768px) {
    .footer { padding: 28px 24px; }
}
@media (max-width: 480px) {
    .footer { padding: 24px 16px; margin-top: 32px; }
    .footer-links { gap: 0 4px; }
    .footer-links a { font-size: var(--text-sm); padding: 10px 8px; }
    .footer-copy { font-size: var(--text-xs); margin-top: 4px; }
}

/* ===== Mobile Navigation Hamburger (shared across all public pages) ===== */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: inherit;
    flex-shrink: 0;
    line-height: 1;
}
.nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    transition: transform var(--transition-slow), opacity var(--transition-medium);
    transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 768px) {
    .nav-hamburger { display: flex; }
    .nav-links { display: none !important; }
    .nav-links.open {
        display: flex !important;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #ffffff;
        border-top: 1px solid #e2e8f0;
        border-bottom: 1px solid #e2e8f0;
        padding: 8px 24px 16px;
        gap: 0;
        z-index: var(--z-toast);
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    }
    .nav-links.open a {
        padding: 11px 0;
        font-size: var(--text-base);
        border-bottom: 1px solid #f0f0f0;
        color: #64748b;
        display: block;
    }
    .nav-links.open a:last-child { border-bottom: none; }
    .nav-links.open a:hover { color: #0f172a; }
    .nav-links.open .btn-primary {
        display: flex;
        justify-content: center;
        margin-top: 8px;
        padding: 12px 20px;
        border-bottom: none;
        background: #1b3a6b;
        color: #ffffff !important;
        border-radius: 4px;
        font-weight: var(--font-bold);
        font-size: var(--text-base);
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
}

/* ===== Reduced Motion (a11y SSOT — disables all animations for vestibular) ===== */
@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;
    }
}