@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@400;500;600&display=swap";:root{--bg-primary:#09090b;--bg-secondary:#111114;--bg-tertiary:#18181b;--bg-elevated:#1c1c21;--bg-hover:#232329;--surface-glass:#ffffff08;--surface-glass-hover:#ffffff0f;--border-subtle:#ffffff0f;--border-default:#ffffff1a;--border-strong:#ffffff26;--text-primary:#fafafa;--text-secondary:#a1a1aa;--text-tertiary:#71717a;--text-muted:#52525b;--accent:#f59e0b;--accent-hover:#fbbf24;--accent-subtle:#f59e0b1a;--accent-glow:#f59e0b26;--accent-worked:#f59e0b0f;--success:#22c55e;--success-subtle:#22c55e1a;--success-glow:#22c55e33;--error:#ef4444;--error-subtle:#ef44441a;--info:#3b82f6;--info-subtle:#3b82f61a;--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--shadow-glow:0 0 20px var(--accent-glow);--shadow-elevated:0 4px 24px #0006;--transition-fast:.15s cubic-bezier(.4,0,.2,1);--transition-default:.25s cubic-bezier(.4,0,.2,1);--transition-slow:.4s cubic-bezier(.4,0,.2,1);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}[data-theme=light]{--bg-primary:#fff;--bg-secondary:#f0f0f3;--bg-tertiary:#e8e8ec;--bg-elevated:#fff;--bg-hover:#ededf0;--surface-glass:#00000005;--surface-glass-hover:#0000000a;--border-subtle:#0000001a;--border-default:#00000021;--border-strong:#00000026;--text-primary:#09090b;--text-secondary:#52525b;--text-tertiary:#71717a;--text-muted:#a1a1aa;--accent:#d97706;--accent-hover:#b45309;--accent-subtle:#d9770614;--accent-glow:#d977061a;--accent-worked:#d977060d;--shadow-glow:0 0 20px #d977061a;--shadow-elevated:0 4px 24px #00000014;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=light] .cm-editor{background:#fff!important;border-color:#0000001f!important}[data-theme=light] .cm-editor.cm-focused{border-color:#00000040!important;box-shadow:0 0 0 1px #00000014!important}[data-theme=light] .cm-editor .cm-gutters{background:#f7f7f9!important;border-right-color:#00000014!important}[data-theme=light] .cm-editor .cm-content{color:#09090b!important}[data-theme=light] .cm-editor .cm-activeLine{background:#00000005!important}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}#root{min-height:100vh}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--accent);color:var(--bg-primary)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.skip-to-content{z-index:9999;width:1px;height:1px;position:absolute;top:auto;left:-9999px;overflow:hidden}.skip-to-content:focus{background:var(--accent);color:#000;border-radius:var(--radius-md);width:auto;height:auto;font-size:14px;font-weight:700;font-family:var(--font-sans);box-shadow:0 0 24px var(--accent-glow);z-index:9999;padding:12px 24px;text-decoration:none;position:fixed;top:8px;left:50%;transform:translate(-50%)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes successPop{0%{opacity:0;transform:scale(.95)}50%{transform:scale(1.02)}to{opacity:1;transform:scale(1)}}@keyframes glowPulse{0%,to{box-shadow:0 0 12px var(--accent-glow)}50%{box-shadow:0 0 28px var(--accent-glow),0 0 56px #f59e0b0d}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.cm-editor{border-radius:var(--radius-md);max-width:100%;overflow:hidden;font-family:var(--font-mono)!important;font-size:14px!important}.cm-editor .cm-content{font-family:var(--font-mono)!important;padding:16px!important}.cm-editor .cm-gutters{background:var(--bg-secondary)!important;border-right:1px solid var(--border-subtle)!important;color:var(--text-muted)!important}.cm-editor.cm-focused{outline:none!important}.cm-editor .cm-activeLine{background:var(--surface-glass)!important}.cm-editor .cm-selectionBackground{background:var(--accent-subtle)!important}[data-theme=light] :focus-visible,[data-theme=light] button:focus-visible{outline-color:#0006}[data-theme=light] .exercise-card{box-shadow:0 1px 3px #00000014}