@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap";:root,:root[data-theme=light]{--bg-primary:#f8f7ff;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f3f0ff;--bg-glass:#ffffffd9;--border-color:#ede9fe;--border-glow:#c4b5fd;--text-primary:#1a1a2e;--text-secondary:#4a4a6a;--text-muted:#b0aad0;--accent-primary:#6c63ff;--accent-secondary:#a855f7;--accent-gradient:linear-gradient(135deg, #6c63ff, #a855f7);--easy:#0d9488;--medium:#d97706;--hard:#dc2626;--easy-bg:#ccfbf1;--medium-bg:#fef3c7;--hard-bg:#fee2e2;--code-bg:#f8f7ff;--shadow-sm:0 2px 12px #6c63ff0f;--shadow-lg:0 8px 30px #6c63ff1f;--shadow-glow:0 0 30px #6c63ff1a;--header-bg:#fffffff2;--grid-color:#6c63ff0a;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--transition:all .3s cubic-bezier(.4, 0, .2, 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