*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--color-primary:#6366f1;--color-primary-hover:#4f46e5;--color-primary-light:#eef2ff;--color-success:#22c55e;--color-success-light:#dcfce7;--color-accent:#f59e0b;--color-bg:#f5f3ff;--color-surface:#fff;--color-text:#1e1b4b;--color-text-secondary:#6b7280;--color-border:#e5e7eb;--max-width:960px;--radius:16px;--shadow-card:0 2px 8px rgba(99,102,241,.08);--shadow-hover:0 6px 20px rgba(99,102,241,.16);--transition:all .35s cubic-bezier(.4,0,.2,1)}body{background:var(--color-bg);color:var(--color-text);font-family:Inter,system-ui,-apple-system,sans-serif;font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.site-header{align-items:center;display:flex;justify-content:space-between;margin:0 auto;max-width:var(--max-width);padding:24px 28px}.site-header__title{color:var(--color-primary);font-size:1.9rem;font-weight:800;letter-spacing:-.02em}.lang-toggle{background:transparent;border:2px solid var(--color-primary);border-radius:var(--radius);color:var(--color-primary);cursor:pointer;font-size:1rem;font-weight:700;min-height:44px;padding:10px 22px;transition:var(--transition)}.lang-toggle:hover{background:var(--color-primary);color:#fff}.site-main{margin:0 auto;max-width:var(--max-width);padding:0 28px 60px}