:root{--bg-main:#0a0a0a;--bg-primary:#0a0a0a;--bg-secondary:#111;--bg-card:#1a1a1a;--text-primary:#e0e0e0;--text-secondary:#a0a0a0;--text-muted:#666;--border-color:#333}[data-theme=light]{--bg-primary:#f5f5f5;--bg-secondary:#e8e8e8;--text-muted:#888;--border-color:#ddd}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-main);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,system-ui,sans-serif}:root,[data-theme=dark],body.dark-mode{--bg-card:#1a1a1a;--text-primary:#e0e0e0;--text-secondary:#a0a0a0;--bg-main:#0a0a0a}[data-theme=light]{--bg-card:#fff;--text-primary:#1a1a1a;--text-secondary:#555;--bg-main:#f5f5f5}.theme-toggle{position:fixed;top:16px;right:16px;z-index:1000;background:var(--bg-card);border:1px solid #333;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:20px;transition:all .3s ease;box-shadow:0 4px 16px rgba(0,0,0,.3)}.theme-toggle:hover{transform:scale(1.1);box-shadow:0 6px 24px rgba(0,0,0,.4)}.theme-toggle .icon-light{display:none}.theme-toggle .icon-dark,[data-theme=light] .theme-toggle .icon-light{display:inline}[data-theme=light] .theme-toggle .icon-dark{display:none}[data-theme=light] .theme-toggle{background:#fff;border-color:#ddd}.bg-card{background:var(--bg-card)}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}