@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Manrope:wght@400;500;600;700;800&display=swap";@layer components;@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-leading:initial;--tw-font-weight:initial;--tw-tracking:initial}}}@layer theme{:root,:host{--font-sans:"Inter", "Manrope", ui-sans-serif, system-ui, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-white:#fff;--spacing:.25rem;--container-xs:20rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-base:1rem;--text-base--line-height:calc(1.5 / 1);--text-lg:1.125rem;--text-lg--line-height:calc(1.75 / 1.125);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 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(hover:hover){.hover\:bg-white\/5:hover{background-color:#ffffff0d}@supports (color:color-mix(in lab, red, red)){.hover\:bg-white\/5:hover{background-color:color-mix(in oklab, var(--color-white) 5%, transparent)}}.hover\:text-\[var\(--ink\)\]:hover{color:var(--ink)}}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:opacity-30:disabled{opacity:.3}@media (width>=40rem){.sm\:inline{display:inline}.sm\:min-h-\[320px\]{min-height:320px}.sm\:pt-10{padding-top:calc(var(--spacing) * 10)}.sm\:pt-14{padding-top:calc(var(--spacing) * 14)}.sm\:text-5xl{font-size:var(--text-5xl);line-height:var(--tw-leading,var(--text-5xl--line-height))}.sm\:text-6xl{font-size:var(--text-6xl);line-height:var(--tw-leading,var(--text-6xl--line-height))}.sm\:text-8xl{font-size:var(--text-8xl);line-height:var(--tw-leading,var(--text-8xl--line-height))}}}:root{--orange:#ff4f00;--orange-soft:#ff7a3d;--orange-glow:#ff4f0073;--nl-blue:#21468b;--nl-blue-soft:#3a63b8;--nl-blue-glow:#3a63b873;--bg:#0a0a0b;--bg-elev:#131316;--bg-elev-2:#1c1c21;--ink:#f5f5f7;--ink-soft:#a1a1aa;--ink-mute:#6b6b75;--line:#ffffff14;--line-strong:#ffffff24;--green:#22c55e;--green-glow:#22c55e66;--red:#ef4444;--red-glow:#ef444473}*{box-sizing:border-box}html,body,#app{min-height:100%}html{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}body{color:var(--ink);font-family:var(--font-sans);background-color:var(--bg);background:radial-gradient(900px 600px at 10% -10%, #ff4f001a, transparent 60%), radial-gradient(800px 500px at 110% 110%, #ff4f0012, transparent 60%), var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;overflow-x:hidden}a{color:var(--orange);text-decoration:none}a:hover{color:var(--orange-soft)}button{font-family:inherit}.app-shell{width:min(560px,100% - 2rem);margin-inline:auto}.card-face{background:linear-gradient(180deg, var(--bg-elev-2), var(--bg-elev));border:1px solid var(--line-strong);box-shadow:inset 0 1px #ffffff0a,0 30px 80px #0000008c,0 8px 30px #00000059}.btn-article{border:1px solid var(--line-strong);background:var(--bg-elev);color:var(--ink);letter-spacing:.18em;transition:transform .12s,border-color .16s,background .16s,box-shadow .2s;position:relative;overflow:hidden}.btn-article:hover:not(:disabled){border-color:var(--nl-blue-soft);color:#cfdcf5;box-shadow:0 14px 40px var(--nl-blue-glow);background:#3a63b81f}.btn-article:active:not(:disabled){transform:translateY(1px)scale(.99)}.btn-article:disabled{cursor:default}.btn-article.is-correct{border-color:var(--green);box-shadow:0 0 0 1px var(--green) inset, 0 0 40px var(--green-glow);background:#22c55e1f}.btn-article.is-wrong{border-color:var(--red);box-shadow:0 0 0 1px var(--red) inset, 0 0 40px var(--red-glow);background:#ef44441f}.btn-primary{background:var(--orange);color:#fff;border:1px solid var(--orange);transition:transform .12s,box-shadow .2s,background .16s;box-shadow:0 14px 32px #ff4f005c,inset 0 0 0 1px #ffffff0f}.btn-primary:hover:not(:disabled){background:var(--orange-soft);box-shadow:0 18px 44px #ff4f0080,inset 0 0 0 1px #ffffff14}.btn-primary:active:not(:disabled){transform:translateY(1px)scale(.99)}.btn-ghost{border:1px solid var(--line-strong);color:var(--ink-soft);background:0 0;transition:color .16s,border-color .16s,background .16s,box-shadow .2s}.btn-ghost:hover:not(:disabled){color:var(--ink);border-color:var(--ink-soft);background:#ffffff08}.btn-ghost.is-danger:hover:not(:disabled){color:var(--red);border-color:var(--red);box-shadow:0 14px 40px var(--red-glow);background:#ef444414}.btn-outline-blue{border:1px solid var(--line-strong);color:var(--ink);background:0 0;transition:color .16s,border-color .16s,background .16s,box-shadow .2s,transform .12s}.btn-outline-blue:hover:not(:disabled){color:#cfdcf5;border-color:var(--nl-blue-soft);box-shadow:0 14px 40px var(--nl-blue-glow);background:#3a63b81a}.btn-outline-blue:active:not(:disabled){transform:translateY(1px)scale(.99)}.progress-track{background:#ffffff0f;border-radius:999px;height:6px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--orange), var(--orange-soft));height:100%;box-shadow:0 0 12px var(--orange-glow);border-radius:999px;transition:width .32s cubic-bezier(.16,1,.3,1)}.kbd{min-width:22px;height:22px;color:var(--ink-soft);border:1px solid var(--line-strong);letter-spacing:.04em;background:#ffffff0a;border-radius:6px;justify-content:center;align-items:center;padding:0 6px;font-size:.7rem;font-weight:600;display:inline-flex}.flip-3d{perspective:1400px}.flip-inner{transform-style:preserve-3d;transition:transform .56s cubic-bezier(.22,1,.36,1);position:relative}.flip-inner.is-flipped{transform:rotateY(180deg)}.flip-side{backface-visibility:hidden}.flip-side.back{position:absolute;inset:0;transform:rotateY(180deg)}.fade-in{animation:.36s cubic-bezier(.16,1,.3,1) both fade-in}@keyframes fade-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.modal-backdrop{-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:60;background:#0009;place-items:center;padding:1rem;animation:.2s both fade-in;display:grid;position:fixed;inset:0}.modal-card{background:linear-gradient(180deg, var(--bg-elev-2), var(--bg-elev));border:1px solid var(--line-strong);border-radius:1.25rem;width:100%;max-width:420px;padding:1.5rem;box-shadow:0 30px 80px #0009}.brand-dot{background:var(--orange);width:8px;height:8px;box-shadow:0 0 12px var(--orange-glow);border-radius:999px}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}