@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-border-style:solid;--tw-outline-style:solid}}}@layer theme{:root,:host{--font-sans:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier 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components;@layer utilities{.collapse{visibility:collapse}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.block{display:block}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline-block{display:inline-block}.inline-flex{display:inline-flex}.table{display:table}.table-row{display:table-row}.transform{transform:var(--tw-rotate-x,)var(--tw-rotate-y,)var(--tw-rotate-z,)var(--tw-skew-x,)var(--tw-skew-y,)}.resize{resize:both}.border{border-style:var(--tw-border-style);border-width:1px}.border-blue-800{border-color:var(--color-blue-800)}.border-gray-700{border-color:var(--color-gray-700)}.border-green-800{border-color:var(--color-green-800)}.border-red-800{border-color:var(--color-red-800)}.bg-blue-900\/20{background-color:#1c398e33}@supports (color:color-mix(in lab, red, red)){.bg-blue-900\/20{background-color:color-mix(in 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oklab,var(--color-red-900)20%,transparent)}}.text-blue-400{color:var(--color-blue-400)}.text-gray-400{color:var(--color-gray-400)}.text-green-400{color:var(--color-green-400)}.text-red-400{color:var(--color-red-400)}.capitalize{text-transform:capitalize}.uppercase{text-transform:uppercase}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--bg-base:#0a0f1e;--bg-sidebar:#0d1224;--bg-card:#ffffff0a;--bg-input:#ffffff0d;--bg-hover:#ffffff12;--text-primary:#e2e8f0;--text-secondary:#64748b;--text-muted:#475569;--border:#ffffff14;--border-strong:#ffffff1f;--scrollbar:#334155;--accent:#6366f1;--accent-glow:#6366f126;--card-shadow:0 4px 24px #0006}html[data-theme=light]{--bg-base:#f0f4f8;--bg-sidebar:#fff;--bg-card:#ffffffe6;--bg-input:#0000000a;--bg-hover:#0000000a;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border:#00000017;--border-strong:#00000024;--scrollbar:#cbd5e1;--accent:#4f46e5;--accent-glow:#4f46e51a;--card-shadow:0 2px 12px #0000001a}*{box-sizing:border-box}body{background:var(--bg-base);color:var(--text-primary);margin:0;font-family:Inter,sans-serif;transition:background .25s,color .25s}::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:4px}.glass{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid 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#6366f14d}.btn-primary:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 6px 20px #6366f166}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-ghost{color:var(--text-secondary);border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:8px;align-items:center;gap:6px;padding:8px 14px;font-size:13px;font-weight:500;transition:all .15s;display:inline-flex}.btn-ghost:hover{border-color:var(--accent);color:#818cf8;background:var(--accent-glow)}.card{background:var(--bg-card);border:1px solid var(--border);box-shadow:var(--card-shadow);border-radius:16px;padding:24px;transition:background .25s,border-color .25s}.badge-easy{color:#4ade80;background:#22c55e26;border:1px solid #22c55e40}.badge-medium{color:#fbbf24;background:#eab30826;border:1px solid #eab30840}.badge-hard{color:#f87171;background:#ef444426;border:1px solid #ef444440}.table-row{border-bottom:1px solid var(--border);transition:background 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