:root {
    /* =========================
     1. COLOR PALETTE — Bleu Nuit (Dark)
     ========================= */
    --bg-primary: #0a0e1a;
    /* Bleu nuit profond */
    --bg-secondary: #111827;
    /* Blue-gray sombre */
    --bg-tertiary: #1a2035;
    --bg-card: rgba(17, 24, 39, 0.7);

    /* Accents - Violet */
    --accent-primary: #a78bfa;
    --accent-secondary: #c4b5fd;
    --accent-hover: #8b5cf6;
    --accent-glow: rgba(124, 58, 237, 0.4);
    --accent-alpha-10: rgba(124, 58, 237, 0.1);
    --accent-alpha-20: rgba(124, 58, 237, 0.2);
    --accent-alpha-30: rgba(124, 58, 237, 0.3);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #ffffff;

    --border-color: rgba(148, 163, 184, 0.1);

    --status-online: #10b981;
    --status-idle: #f59e0b;
    --status-dnd: #ef4444;
    --status-offline: #64748b;

    /* =========================
     2. TYPOGRAPHY (System Tokens)
     ========================= */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --font-size-xs: 0.8125rem;
    /* 13px */
    --font-size-sm: 0.9375rem;
    /* 15px */
    --font-size-base: 1.0625rem;
    /* 17px */
    --font-size-lg: 1.1875rem;
    /* 19px */
    --font-size-xl: 1.375rem;
    /* 22px */
    --font-size-2xl: 1.75rem;
    /* 28px */
    --font-size-3xl: 2.5rem;
    /* 40px */

    /* =========================
     3. SPACING (System Tokens)
     ========================= */
    --spacing-xs: 0.25rem;
    /* 4px */
    --spacing-sm: 0.5rem;
    /* 8px */
    --spacing-md: 1rem;
    /* 16px */
    --spacing-lg: 1.5rem;
    /* 24px */
    --spacing-xl: 2rem;
    /* 32px */
    --spacing-2xl: 2.5rem;
    /* 40px */
    --spacing-3xl: 3.5rem;
    /* 56px */

    /* =========================
     4. LAYOUT & Z-INDEX
     ========================= */
    --z-base: 1;
    --z-dropdown: 50;
    --z-navbar: 100;
    --z-loader: 9999;

    /* =========================
     5. BORDERS & RADIUS
     ========================= */
    --radius-sm: 4px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* =========================
     6. EFFECTS & TRANSITIONS
     ========================= */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 20px var(--accent-glow);

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* =========================
   LIGHT THEME (Warm & Cozy)
   ========================= */
html[data-theme='light'] {
    /* =========================
     1. COLOR PALETTE — Warm Light
     ========================= */
    --bg-primary: #faf8f5;
    /* Off-white, warm sand */
    --bg-secondary: #f0ebe1;
    /* Slightly darker cream */
    --bg-tertiary: #e6dfd3;
    /* Light mocha */
    --bg-card: rgba(255, 255, 255, 0.85);
    /* Frosty white card */

    /* Accents - Warm Orange/Coral */
    --accent-primary: #d97757;
    /* Terracotta */
    --accent-secondary: #e8987e;
    /* Soft peach */
    --accent-hover: #c46040;
    /* Darker burnt orange */
    --accent-glow: rgba(217, 119, 87, 0.3);
    --accent-alpha-10: rgba(217, 119, 87, 0.1);
    --accent-alpha-20: rgba(217, 119, 87, 0.2);
    --accent-alpha-30: rgba(217, 119, 87, 0.3);

    --text-primary: #2d2a26;
    /* Very dark warm gray (not quite black) */
    --text-secondary: #5c5852;
    /* Medium warm gray */
    --text-muted: #8a847a;
    /* Light warm gray */
    --text-inverse: #ffffff;

    --border-color: rgba(45, 42, 38, 0.08);

    /* Status colors slightly adjusted for light mode contrast if needed */
    --status-online: #059669;
    --status-idle: #d97706;
    --status-dnd: #dc2626;
    --status-offline: #64748b;
}