/*! tailwindcss v4.3.1 | MIT License | https://tailwindcss.com */
@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-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:"Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;--font-mono:"JetBrains Mono", "Cascadia Code", "SF Mono", ui-monospace, SFMono-Regular, monospace;--color-neutral-400:oklch(70.8% 0 0);--color-neutral-500:oklch(55.6% 0 0);--spacing:.25rem;--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--radius-xl:.75rem;--shadow-xs:0 1px 2px 0 #0000000d;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}:root{--bg:#f8f9fb;--bg-elevated:#fff;--bg-inset:#f1f3f6;--text:#0f172a;--text-secondary:#475569;--text-tertiary:#64748b;--text-muted:#94a3b8;--border:#e2e8f0;--border-light:#f1f5f9;--border-hover:#cbd5e1;--shadow-xs:0 1px 2px #00000008;--shadow-sm:0 1px 3px #0000000a, 0 1px 2px #00000008;--shadow:0 4px 6px -1px #0000000a, 0 2px 4px -2px #00000008;--shadow-md:0 10px 15px -3px #0000000d, 0 4px 6px -4px #00000008;--shadow-lg:0 20px 40px -5px #0000000f;--radius-sm:6px;--radius:8px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px}html.dark{--bg:#0a0a0a;--bg-elevated:#141414;--bg-inset:#0f0f0f;--text:#ececec;--text-secondary:#b8bcc5;--text-tertiary:#8b9099;--text-muted:#5a5e66;--border:#242424;--border-light:#1a1a1a;--border-hover:#303030;--shadow-xs:0 1px 2px #0003;--shadow-sm:0 1px 3px #0000004d;--shadow:0 4px 6px #0000004d;--shadow-md:0 10px 15px #0006;--shadow-lg:0 20px 40px #00000080;--accent-glow:#2dd4bf1f}body{background:var(--bg);color:var(--text);font-feature-settings:"cv02","cv03","cv04","cv09";transition:background .3s,color .3s}*{box-sizing:border-box}::selection{background:var(--accent);color:#fff}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:where(a,button,input,textarea,select,[tabindex]):focus-visible{outline:2px solid var(--accent);outline-offset:3px}.skip-to-content{background:var(--accent);color:#fff;z-index:300;border-radius:0 0 var(--radius) 0;padding:.5rem 1rem;font-size:.85rem;font-weight:600;text-decoration:none;position:absolute;top:-100%;left:0}.skip-to-content:focus{top:0}}@layer components;@layer utilities{.collapse{visibility:collapse}.invisible{visibility:hidden}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.top-2{top:calc(var(--spacing) * 2)}.isolate{isolation:isolate}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.m-1{margin:var(--spacing)}.mx-1\.5{margin-inline:calc(var(--spacing) * 1.5)}.mt-2{margin-top:calc(var(--spacing) * 2)}.mb-2{margin-bottom:calc(var(--spacing) * 2)}.mb-6{margin-bottom:calc(var(--spacing) * 6)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.size-3{width:calc(var(--spacing) * 3);height:calc(var(--spacing) * 3)}.min-h-screen{min-height:100vh}.shrink{flex-shrink:1}.grow{flex-grow:1}.border-collapse{border-collapse:collapse}.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}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.gap-1\.5{gap:calc(var(--spacing) * 1.5)}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.border{border-style:var(--tw-border-style);border-width:1px}.p-2{padding:calc(var(--spacing) * 2)}.font-sans{font-family:var(--font-sans)}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-neutral-400{color:var(--color-neutral-400)}.lowercase{text-transform:lowercase}.uppercase{text-transform:uppercase}.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.shadow{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.blur{--tw-blur:blur(8px);filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}.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,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))}@media (prefers-color-scheme:dark){.dark\:text-neutral-500{color:var(--color-neutral-500)}}}@keyframes fade-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes scale-in{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes slide-down{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}:root{--shell-width:1180px;--reading-width:760px;--sidebar-width:260px;--accent:#0d9488;--accent-soft:#ccfbf1;--accent-hover:#0f766e;--accent-glow:#0d948826}.bg-decor{z-index:-2;pointer-events:none;position:fixed;inset:0;overflow:hidden}.bg-decor:before{content:"";background:radial-gradient(#0d94880d 0%,#0000 70%);width:70vw;height:70vh;position:absolute;top:-50vh;right:-15vw}.dark .bg-decor:before{background:radial-gradient(#2dd4bf0a 0%,#0000 70%)}.bg-decor:after{content:"";background:radial-gradient(#0d948808 0%,#0000 70%);width:50vw;height:50vh;position:absolute;bottom:-40vh;left:-10vw}.dark .bg-decor{background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.02'/%3E%3C/svg%3E");background-size:256px}.site-header{z-index:50;background:var(--bg);-webkit-backdrop-filter:blur(20px)saturate(180%);border-bottom:1px solid #0000;transition:background .3s;position:sticky;top:0}.dark .site-header{background:var(--bg)}.site-header:after{content:"";background:var(--border);opacity:.4;height:1px;position:absolute;bottom:0;left:0;right:0}.header-nav{max-width:var(--shell-width);justify-content:space-between;align-items:center;height:52px;margin:0 auto;padding:0 1.5rem;display:flex}.header-brand{color:var(--text);letter-spacing:-.01em;align-items:center;gap:.5rem;font-size:.95rem;font-weight:700;text-decoration:none;transition:opacity .2s;display:flex}.header-brand:hover{opacity:.65}.header-brand-icon{background:linear-gradient(135deg, var(--accent), #14b8a6);color:#fff;border-radius:5px;justify-content:center;align-items:center;width:22px;height:22px;font-size:.75rem;font-weight:800;display:flex}.header-links{color:var(--text);align-items:center;gap:.15rem;font-size:.85rem;display:flex}.header-links>a{border-radius:var(--radius);color:inherit;padding:.35rem .7rem;font-weight:500;text-decoration:none;transition:color .15s,background .15s}.header-links>a:hover{color:var(--text);background:var(--bg-inset)}.header-links>a[aria-current=page]{color:var(--accent);font-weight:600}.header-search-btn{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text-tertiary);cursor:pointer;align-items:center;gap:.4rem;margin-left:.2rem;padding:.3rem .55rem;font-family:inherit;font-size:.8rem;font-weight:500;transition:all .2s;display:flex}.header-search-btn:hover{border-color:var(--border-hover);color:var(--text);box-shadow:var(--shadow-xs)}.header-search-btn kbd{font-size:.62rem;font-family:var(--font-mono);border:1px solid var(--border);background:var(--bg-inset);color:var(--text-tertiary);border-radius:3px;padding:1px 5px;font-weight:500}.header-search-label{display:none}@media (width>=640px){.header-search-label{display:inline}}.header-theme-btn{cursor:pointer;border-radius:var(--radius);color:var(--text-tertiary);background:0 0;border:none;align-items:center;padding:.35rem;transition:all .15s;display:flex}.header-theme-btn:hover{color:var(--text);background:var(--bg-inset)}@media (width<=640px){.header-links>a{padding:.3rem .45rem;font-size:.8rem}.header-links{gap:0}.header-search-label,.header-search-btn kbd{display:none}}.site-main{max-width:var(--shell-width);margin:0 auto;padding:2rem 1.5rem 4rem;animation:.5s both fade-up}.layout-dashboard,.layout-explorer{max-width:var(--shell-width)}.layout-reading{max-width:calc(var(--reading-width) + var(--sidebar-width) + 3rem)}.layout-reading .reading-grid{grid-template-columns:1fr 240px;align-items:start;gap:2.5rem;display:grid}.layout-reading .reading-sidebar{color:var(--text-tertiary);flex-direction:column;gap:1.2rem;font-size:.8rem;display:flex;position:sticky;top:68px}.layout-reading .reading-sidebar nav a{color:var(--text-tertiary);padding:.25rem 0;font-size:.76rem;text-decoration:none;transition:color .15s;display:block}.layout-reading .reading-sidebar nav a:hover{color:var(--text)}@media (width<=860px){.layout-reading .reading-grid{grid-template-columns:1fr}.layout-reading .reading-sidebar{border-bottom:1px solid var(--border);border-top:1px solid var(--border-light);flex-flow:wrap;order:0;gap:.6rem;margin:1rem 0;padding:.6rem 0;font-size:.75rem;display:flex;position:static}.layout-reading .reading-sidebar .sidebar-section{border-bottom:none;border-right:1px solid var(--border-light);margin:0;padding:0 .5rem}.layout-reading .reading-sidebar .sidebar-section:last-child{border-right:none}.layout-reading .reading-sidebar nav{display:none}.layout-reading .reading-sidebar .sidebar-label{margin-bottom:.2rem;font-size:.6rem}}.problem-mobile-toc-shell{display:none}.problem-toc-toggle{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text);cursor:pointer;align-items:center;gap:.4rem;margin-bottom:.6rem;padding:.5rem .85rem;font-family:inherit;font-size:.82rem;font-weight:500;transition:all .15s;display:inline-flex}.problem-toc-toggle:hover{border-color:var(--border-hover);color:var(--text);background:var(--bg-inset)}.problem-toc-toggle[aria-expanded=true]{background:var(--bg-inset);color:var(--text);border-color:var(--border-hover)}.problem-mobile-toc{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);margin-bottom:1rem;padding:.35rem 0;overflow:hidden}.problem-mobile-toc[hidden]{display:none}.problem-mobile-toc:not([hidden]){display:block}.problem-mobile-toc a{color:var(--text-secondary);align-items:center;min-height:40px;padding:.55rem 1rem;font-size:.84rem;font-weight:500;text-decoration:none;transition:background .1s,color .1s;display:flex}.problem-mobile-toc a:hover{background:var(--bg-inset);color:var(--text)}@media (width<=759px){.problem-mobile-toc-shell{display:block}}@media (width<=640px){.site-main{padding:1.5rem 1rem 3rem}}.site-footer{max-width:var(--shell-width);color:var(--text-tertiary);margin:0 auto;padding:0 1.5rem 4rem;font-size:.75rem}.footer-divider{background:var(--border);height:1px;margin-bottom:2rem}.prose{color:var(--text);max-width:none;font-size:1rem;line-height:1.85}.prose h1{letter-spacing:-.035em;color:var(--text);margin:0 0 1.5rem;font-size:2rem;font-weight:800;line-height:1.2;animation:.5s 50ms both fade-up}.prose h2{letter-spacing:-.015em;color:var(--text);margin:2.5rem 0 1rem;font-size:1.2rem;font-weight:700;line-height:1.35}.prose h3{letter-spacing:-.005em;color:var(--text);margin:1.8rem 0 .5rem;font-size:1rem;font-weight:600}.prose p{margin:.9rem 0}.prose ul,.prose ol{margin:.9rem 0;padding-left:1.5rem}.prose ul{list-style-type:disc}.prose li{margin:.35rem 0}.prose li::marker{color:var(--text-tertiary)}.prose strong{color:var(--text);font-weight:600}.prose blockquote{border-left:2px solid var(--accent);color:var(--text-secondary);background:var(--bg-inset);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:1.4rem 0;padding:.5rem 1rem;font-size:.92rem;font-style:italic}.prose a{color:var(--accent);font-weight:500;text-decoration:none;transition:opacity .15s}.prose a:hover{opacity:.65}.prose code:not(pre code){color:var(--text);background:var(--bg-inset);border:1px solid var(--border);font-size:.84em;font-weight:500;font-family:var(--font-mono);border-radius:4px;padding:.12em .45em}.prose code:before,.prose code:after{content:""}.prose pre{border-radius:var(--radius-lg);background:#0b0f13;border:1px solid #21262d;margin:1.5rem 0;padding:1.2rem 1.5rem;font-size:.8rem;line-height:1.7;overflow-x:auto}.dark .prose pre{border-color:#1a1a1a}.prose pre code{font-size:inherit;color:#e6edf3;font-weight:400;font-family:var(--font-mono);background:0 0;border:none;padding:0}.prose table{border-collapse:collapse;width:100%;margin:1.5rem 0;font-size:.84rem}.prose thead{border-bottom:2px solid var(--border)}.prose thead th{text-align:left;color:var(--text);letter-spacing:.05em;text-transform:uppercase;padding:.5rem;font-size:.72rem;font-weight:600}.prose tbody td{vertical-align:top;padding:.5rem}.prose tbody tr{border-bottom:1px solid var(--border-light);transition:background .1s}.prose tbody tr:last-child{border-bottom:none}.prose tbody tr:hover{background:var(--bg-inset)}.prose img{border-radius:var(--radius-lg);max-width:100%;margin:2rem 0}.prose hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}.breadcrumb{color:var(--text-tertiary);flex-wrap:wrap;align-items:center;margin-bottom:2rem;font-size:.82rem;display:flex}.breadcrumb a{color:var(--text-tertiary);text-decoration:none;transition:color .15s}.breadcrumb a:hover{color:var(--text)}.breadcrumb span{user-select:none}.badge-ac,.pill-ac{letter-spacing:.02em;color:#166534;background:#dcfce7;border-radius:999px;align-items:center;padding:.15rem .55rem;font-size:.68rem;font-weight:600;text-decoration:none;transition:opacity .15s;display:inline-flex}.dark .badge-ac,.dark .pill-ac{color:#4ade80;background:#22c55e26}.badge-wa,.pill-wa{letter-spacing:.02em;color:#991b1b;background:#fee2e2;border-radius:999px;align-items:center;padding:.15rem .55rem;font-size:.68rem;font-weight:600;text-decoration:none;transition:opacity .15s;display:inline-flex}.dark .badge-wa,.dark .pill-wa{color:#f87171;background:#ef444426}.badge-other,.pill-other{letter-spacing:.02em;color:#92400e;background:#fef3c7;border-radius:999px;align-items:center;padding:.15rem .55rem;font-size:.68rem;font-weight:600;text-decoration:none;transition:opacity .15s;display:inline-flex}.dark .badge-other,.dark .pill-other{color:#fbbf24;background:#f59e0b26}.badge-tag{background:var(--bg-inset);color:var(--text-tertiary);border:1px solid var(--border);border-radius:999px;align-items:center;padding:.15rem .55rem;font-size:.68rem;font-weight:500;transition:all .15s;display:inline-flex}.badge-tag:hover{border-color:var(--border-hover);color:var(--text-secondary)}a.badge-ac:hover,a.badge-wa:hover,a.badge-other:hover{opacity:.7}.dup-mark{color:var(--text-tertiary);cursor:help;margin-left:.15rem;font-size:.72rem}.diff-none{color:var(--text-tertiary)}.diff-gray{color:#78716c}.diff-green{color:#16a34a}.diff-cyan{color:#0891b2}.diff-blue{color:#2563eb}.diff-purple{color:#9333ea}.diff-orange{color:#ea580c}.diff-red{color:#dc2626}.diff-darkred{color:#b91c1c}.dark .diff-gray{color:#a8a29e}.dark .diff-green{color:#4ade80}.dark .diff-cyan{color:#22d3ee}.dark .diff-blue{color:#60a5fa}.dark .diff-purple{color:#c084fc}.dark .diff-orange{color:#fb923c}.dark .diff-red{color:#f87171}.dark .diff-darkred{color:#ef4444}.code-link{cursor:pointer;text-decoration:none}.code-link:hover{opacity:.7}.code-overlay{z-index:100;backdrop-filter:blur(8px);background:#000000b3;justify-content:center;align-items:center;padding:2rem;animation:.2s fade-in;display:flex;position:fixed;inset:0}.code-modal{border-radius:var(--radius-xl);background:#0b0f13;border:1px solid #21262d;flex-direction:column;width:100%;max-width:940px;max-height:88vh;animation:.25s scale-in;display:flex;overflow:hidden;box-shadow:0 24px 80px #000000b3}.code-modal-bar{background:#0d1117;border-bottom:1px solid #21262d;flex-shrink:0;justify-content:space-between;align-items:center;padding:.65rem 1.2rem;display:flex}.code-modal-filename{color:#8b949e;font-size:.78rem;font-family:var(--font-mono);font-weight:500}.code-modal-actions{gap:.2rem;display:flex}.code-modal-btn{border-radius:var(--radius-sm);color:#8b949e;cursor:pointer;background:0 0;border:1px solid #0000;align-items:center;padding:.25rem .45rem;font-size:.85rem;transition:all .15s;display:flex}.code-modal-btn:hover{color:#e6edf3;background:#21262d}.code-modal-body{background:#0b0f13;flex:1;overflow-y:auto}.code-pre{color:#e6edf3;font-size:.78rem;line-height:1.65;font-family:var(--font-mono);tab-size:4;counter-reset:line;background:0 0;margin:0;padding:1.5rem}.cl{counter-increment:line;display:block}.cl:hover{background:#ffffff05}.cln{text-align:right;color:#3a3f47;user-select:none;font-feature-settings:"tnum";width:3rem;margin-right:1rem;font-size:.68rem;transition:color .15s;display:inline-block}.cl:hover .cln{color:#6e7681}@media (width<=640px){.code-overlay{padding:.25rem}.code-modal{border-radius:var(--radius-lg);max-height:96vh}.code-pre{padding:1rem;font-size:.7rem}.cln{width:2rem;margin-right:.6rem;font-size:.62rem}}.collapsible{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);margin:1rem 0;transition:box-shadow .2s,border-color .2s;overflow:hidden}.collapsible[open]{box-shadow:var(--shadow-sm);border-color:var(--border-hover)}.collapsible summary{cursor:pointer;user-select:none;color:var(--text);background:0 0;align-items:center;padding:.7rem 1.1rem;font-size:.9rem;font-weight:600;list-style:none;transition:color .15s,background .15s;display:flex}.collapsible summary:hover{color:var(--text);background:var(--bg-inset)}.collapsible summary:before{content:"";opacity:.45;background:currentColor;width:1rem;height:1rem;margin-right:.4rem;transition:transform .2s;display:inline-block;mask:url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='m9 18 6-6-6-6'/%3E%3C/svg%3E") 50%/contain no-repeat}.collapsible[open] summary:before{transform:rotate(90deg)}.collapsible[open] summary{border-bottom:1px solid var(--border)}.collapsible>:not(summary){padding:0 1.1rem}.collapsible>:last-child{padding-bottom:.9rem}.collapsible>p,.collapsible>ul,.collapsible>ol{padding:.35rem 1.1rem}.related-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:.45rem;padding:.4rem 0;display:grid}.related-card{border:1px solid var(--border);border-radius:var(--radius);color:inherit;background:var(--bg-elevated);align-items:center;gap:.45rem;padding:.5rem .7rem;font-size:.8rem;text-decoration:none;transition:all .2s;display:flex}.related-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.related-status{flex-shrink:0;font-size:.68rem}.related-title{text-overflow:ellipsis;white-space:nowrap;color:var(--text-secondary);flex:1;font-weight:500;overflow:hidden}.related-diff{flex-shrink:0;font-size:.68rem;font-weight:500}.filter-bar{z-index:40;background:var(--bg);border-bottom:1px solid #0000;flex-wrap:wrap;gap:.6rem;margin:1.5rem 0 2rem;padding:.6rem 0;transition:border-color .2s,box-shadow .2s;display:flex;position:sticky;top:52px}.filter-bar.is-stuck{border-bottom-color:var(--border);box-shadow:var(--shadow-xs)}.filter-input{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);min-width:170px;color:var(--text);outline:none;flex:1;padding:.45rem .85rem;font-family:inherit;font-size:.86rem;transition:all .2s}.filter-input::placeholder{color:var(--text-tertiary)}.filter-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.filter-toggles{gap:.25rem;display:flex}.filter-btn{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text);cursor:pointer;padding:.4rem .85rem;font-family:inherit;font-size:.78rem;font-weight:500;transition:all .15s}.filter-btn:hover{border-color:var(--border-hover);color:var(--text);background:var(--bg-inset)}.filter-btn.active{background:var(--text);color:var(--bg);border-color:var(--text);font-weight:600}.filter-btn:active{transform:scale(.97)}.explorer-toolbar{z-index:40;background:var(--bg);border-bottom:1px solid var(--border);flex-direction:column;gap:.4rem;margin-bottom:1rem;padding:.6rem 0;display:flex;position:sticky;top:52px}.explorer-compact-controls{align-items:center;gap:.4rem;display:flex}.explorer-toolbar-row{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}#explorer-filter-panel{flex-direction:column;gap:.4rem;display:flex}#explorer-filter-panel[data-open=false]{display:none}#explorer-filter-panel .filter-toggles{flex-wrap:wrap}.explorer-result-count{color:var(--text-tertiary);padding:.2rem 0;font-size:.78rem}.explorer-empty{text-align:center;color:var(--text-tertiary);padding:3rem 1.5rem;font-size:.9rem;font-weight:500}.filter-select{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text);cursor:pointer;padding:.35rem .6rem;font-family:inherit;font-size:.78rem}@media (width<=759px){.problem-table-wrap{display:none}.problem-grid{display:flex!important}#explorer-filter-panel:not([data-open=true]){display:none}#explorer-filter-panel[data-open=true]{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:.5rem;padding:.6rem;display:flex}#explorer-filter-panel .filter-toggles{flex-wrap:wrap}.filter-btn{padding:.3rem .55rem;font-size:.72rem}#explorer-filter-toggle{display:inline-flex!important}#explorer-view-toggle{display:none}}@media (width>=760px){#explorer-filter-panel{flex-flow:wrap;align-items:center;gap:.4rem;display:flex!important}#explorer-filter-toggle{display:none}}.pager{flex-wrap:wrap;justify-content:center;align-items:center;gap:.3rem;margin-top:2rem;display:flex}.pager-info{color:var(--text-tertiary);margin-right:.8rem;font-size:.76rem;font-weight:500}.pager-btn{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;min-width:2rem;padding:.3rem .6rem;font-family:inherit;font-size:.76rem;font-weight:500;transition:all .15s}.pager-btn:hover{border-color:var(--border-hover);color:var(--text)}.pager-btn.active{background:var(--text);color:var(--bg);border-color:var(--text);font-weight:600}.category-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:.6rem;margin:1.5rem 0;display:grid}.category-card{border:1px solid var(--border);border-radius:var(--radius-md);color:inherit;background:var(--bg-elevated);flex-direction:column;gap:.55rem;padding:.95rem 1.1rem;text-decoration:none;transition:all .2s;display:flex}.category-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.cat-card-header{justify-content:space-between;align-items:baseline;display:flex}.cat-card-title{color:var(--text);font-size:.9rem;font-weight:700}.cat-card-num{color:var(--text-tertiary);font-size:.72rem;font-weight:600;font-family:var(--font-mono)}.cat-card-bar-wrap{background:var(--bg-inset);border-radius:999px;height:4px;overflow:hidden}.cat-card-bar{background:var(--accent);border-radius:999px;height:100%;transition:width .6s;display:block}.cat-card-meta{color:var(--text-tertiary);font-size:.7rem}.problem-grid{flex-direction:column;gap:.3rem;margin-bottom:2.5rem;display:flex}.problem-card{border:1px solid var(--border);border-radius:var(--radius);color:inherit;background:var(--bg-elevated);align-items:center;gap:.75rem;padding:.65rem .95rem;font-size:.86rem;text-decoration:none;transition:all .2s;animation:.4s both fade-up;display:flex}.problem-card:first-child{animation-delay:30ms}.problem-card:nth-child(2){animation-delay:60ms}.problem-card:nth-child(3){animation-delay:90ms}.problem-card:nth-child(4){animation-delay:.12s}.problem-card:nth-child(5){animation-delay:.15s}.problem-card:nth-child(6){animation-delay:.18s}.problem-card:nth-child(7){animation-delay:.21s}.problem-card:nth-child(8){animation-delay:.24s}.problem-card:nth-child(9){animation-delay:.27s}.problem-card:nth-child(10){animation-delay:.3s}.problem-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow);transform:translateY(-1px)}.problem-card:active{transform:translateY(0)}.card-status{flex-shrink:0;width:1.3rem;font-size:.78rem;font-weight:700}.status-ac{color:#16a34a}.dark .status-ac{color:#4ade80}.status-attempted{color:#dc2626}.dark .status-attempted{color:#f87171}.status-unknown{color:var(--text-tertiary)}.status-incomplete{color:var(--text-muted)}.card-body{flex-direction:column;flex:1;gap:.05rem;min-width:0;display:flex}.card-title{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.card-summary{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:.78rem;overflow:hidden}.card-diff{flex-shrink:0;font-size:.8rem;font-weight:500}.card-reviews{color:var(--accent);text-align:right;opacity:.7;flex-shrink:0;min-width:1.1rem;font-size:.68rem;font-weight:600}.note-section{margin-top:2.5rem}.note-card{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);transition:box-shadow .2s;overflow:hidden}.note-card:focus-within{box-shadow:var(--shadow-sm);border-color:var(--border-hover)}.note-card-header{color:var(--text-secondary);border-bottom:1px solid var(--border);background:var(--bg-inset);padding:.6rem 1.1rem;font-size:.85rem;font-weight:600}.note-textarea{background:var(--bg-elevated);width:100%;min-height:140px;color:var(--text);resize:vertical;border:none;outline:none;padding:.9rem 1.1rem;font-family:inherit;font-size:.86rem;line-height:1.75}.note-textarea::placeholder{color:var(--text-tertiary)}.note-card-footer{color:var(--text-tertiary);border-top:1px solid var(--border);justify-content:space-between;align-items:center;padding:.45rem 1.1rem;font-size:.72rem;display:flex}.note-clear-btn{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-tertiary);background:0 0;padding:.18rem .65rem;font-family:inherit;font-size:.7rem;font-weight:500;transition:all .15s}.note-clear-btn:hover{color:#dc2626;background:#fef2f2;border-color:#fecaca}.dark .note-clear-btn:hover{color:#f87171;background:#2d1215;border-color:#3d1f1f}.review-status{color:var(--text-tertiary);font-size:.76rem;font-weight:500}.review-btn{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text);cursor:pointer;padding:.18rem .6rem;font-family:inherit;font-size:.73rem;font-weight:500;transition:all .15s}.review-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 3px var(--accent-glow)}.dark .review-btn:hover{background:#0d948814}.review-btn:active{transform:scale(.96)}.meta-row{color:var(--text-secondary)}.meta-row a{color:var(--text-secondary);font-weight:500;text-decoration:none}.meta-row a:hover{color:var(--text)}.dash-hero{margin-bottom:1.5rem}.dash-title{letter-spacing:-.03em;color:var(--text);margin:0;font-size:2rem;font-weight:800}.dash-sub{color:var(--text-secondary);margin:.3rem 0 0;font-size:.95rem}.dash-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1.5rem;margin-bottom:2rem;display:flex}.dash-stats{gap:2rem;display:flex}.dash-stat{flex-direction:column;display:flex}.dash-stat-val{color:var(--text);letter-spacing:-.02em;font-size:1.6rem;font-weight:800;line-height:1.1}.dash-stat-lbl{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.04em;margin-top:.15rem;font-size:.75rem}.dash-links{flex-wrap:wrap;gap:.4rem;display:flex}.dash-link{border:1px solid var(--border);border-radius:var(--radius);color:var(--text);background:var(--bg-elevated);padding:.4rem .85rem;font-size:.82rem;font-weight:500;text-decoration:none;transition:all .15s}.dash-link:hover{border-color:var(--border-hover);color:var(--text)}.dash-link-primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}.dash-link-primary:hover{opacity:.85;color:#fff}.dash-panels{grid-template-columns:2fr 1fr;align-items:start;gap:1.2rem;display:grid}.dash-topic-chip{border:1px solid var(--border);color:var(--text-secondary);background:var(--bg-inset);white-space:nowrap;text-overflow:ellipsis;border-radius:999px;max-width:100%;margin:0 .3rem .4rem 0;padding:.25rem .65rem;font-size:.78rem;text-decoration:none;transition:all .15s;display:inline-block;overflow:hidden}.dash-topic-chip:hover{border-color:var(--accent);color:var(--accent)}#dash-topics{flex-wrap:wrap;gap:0 .3rem;display:flex;overflow:visible}.dash-revisit-item{color:var(--text);border-bottom:1px solid var(--border-light);padding:.35rem 0;font-size:.85rem;text-decoration:none;display:block}.dash-revisit-item:last-child{border-bottom:none}.dash-revisit-item:hover{color:var(--text)}.dash-revisit-title{font-weight:500}@media (width<=700px){.dash-top{flex-direction:column;align-items:flex-start}.dash-panels{grid-template-columns:1fr}}.search-overlay{z-index:200;backdrop-filter:blur(4px);background:#00000073;justify-content:center;align-items:flex-start;padding-top:16vh;animation:.15s fade-in;display:flex;position:fixed;inset:0}.search-modal{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-xl);width:500px;max-width:92vw;max-height:62vh;box-shadow:var(--shadow-lg);animation:.2s scale-in;overflow-y:auto}.search-input-wrap{border-bottom:1px solid var(--border);align-items:center;gap:.55rem;padding:.85rem 1rem;display:flex}.search-input-icon{color:var(--text-tertiary);flex-shrink:0}.search-input{color:var(--text);background:0 0;border:none;outline:none;flex:1;font-family:inherit;font-size:.92rem;font-weight:500}.search-input::placeholder{color:var(--text-tertiary);font-weight:400}.search-esc{border:1px solid var(--border);color:var(--text-tertiary);font-size:.62rem;font-family:var(--font-mono);border-radius:4px;padding:2px 6px}.search-results{padding:.4rem 0}.search-result-item{color:inherit;justify-content:space-between;align-items:center;gap:1rem;padding:.6rem 1rem;text-decoration:none;transition:background .1s;display:flex}.search-result-item:hover{background:var(--bg-inset)}.search-result-left{flex-direction:column;gap:.05rem;min-width:0;display:flex}.search-result-title{color:var(--text);font-size:.85rem;font-weight:600}.search-result-meta{color:var(--text-tertiary);font-size:.68rem}.search-result-right{flex-shrink:0;align-items:center;gap:.45rem;display:flex}.search-empty{text-align:center;color:var(--text-tertiary);padding:2.5rem;font-size:.82rem}.hero{flex-direction:column;justify-content:center;min-height:60vh;padding:2rem 0;display:flex}.hero-title{letter-spacing:-.05em;color:var(--text);margin:0 0 .8rem;font-size:3rem;font-weight:800;line-height:1.1;animation:.5s both fade-up}.hero-sub{color:var(--text);max-width:400px;margin:0 0 2.5rem;font-size:1.15rem;line-height:1.7;animation:.5s 80ms both fade-up}.hero-links{flex-wrap:wrap;gap:.5rem;animation:.5s .14s both fade-up;display:flex}.hero-link{border-radius:var(--radius);border:1px solid var(--border);color:var(--text);background:var(--bg-elevated);align-items:center;gap:.4rem;padding:.55rem 1.1rem;font-size:.85rem;font-weight:500;text-decoration:none;transition:all .2s;display:inline-flex}.hero-link:hover{border-color:var(--border-hover);color:var(--text);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.hero-link:active{transform:translateY(0)}.hero-link.primary{background:var(--text);color:var(--bg);border-color:var(--text);font-weight:600}.hero-link.primary:hover{opacity:.82;transform:translateY(-1px)}.hero-link.primary svg{transition:transform .2s}.hero-link.primary:hover svg{transform:translate(3px)}.hero-stats{color:var(--text-tertiary);gap:2.5rem;margin-top:4rem;font-size:.82rem;animation:.5s .2s both fade-up;display:flex}.hero-stat-val{color:var(--text);letter-spacing:-.02em;font-size:1.5rem;font-weight:800;line-height:1.2;display:block}.hero-revisit{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--bg-elevated);margin-top:2.5rem;padding:1.1rem 1.4rem;animation:.5s .26s both fade-up}.hero-revisit h3{color:var(--text);text-transform:uppercase;letter-spacing:.04em;margin:0 0 .7rem;font-size:.78rem;font-weight:600}.hero-revisit a{color:var(--text-secondary);padding:.25rem 0;font-size:.85rem;font-weight:500;text-decoration:none;transition:color .15s;display:block}.hero-revisit a:hover{color:var(--text)}@media (width<=640px){.hero-title{font-size:2.2rem}.hero-sub{font-size:1rem}.hero-stats{gap:1.5rem}}.dashboard{padding:1rem 0}.dash-header{margin-bottom:2rem}.dash-header .hero-title{margin-bottom:.3rem;font-size:2.2rem}.dash-header .hero-sub{margin-bottom:0;font-size:.95rem}.dash-cards{grid-template-columns:repeat(4,1fr);gap:.7rem;margin-bottom:2rem;display:grid}.dash-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.2rem 1.3rem;transition:box-shadow .2s,border-color .2s}.dash-card:hover{box-shadow:var(--shadow-sm);border-color:var(--border-hover)}.dash-card-val{color:var(--text);letter-spacing:-.03em;font-size:2rem;font-weight:800;line-height:1.1}.dash-card-label{color:var(--text);text-transform:uppercase;letter-spacing:.03em;margin-top:.2rem;font-size:.78rem;font-weight:600}.dash-card-sub{color:var(--text-tertiary);margin-top:.15rem;font-size:.7rem}.dash-card-warn{justify-content:center;align-items:center;display:flex}.dash-grid{grid-template-columns:2fr 1fr;gap:1.5rem;margin-bottom:.5rem;display:grid}.dash-panel{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.1rem 1.3rem}.dash-panel-title{color:var(--text);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);margin:0 0 1rem;padding-bottom:.6rem;font-size:.73rem;font-weight:700}.dash-cat-row{align-items:center;gap:.6rem;margin-bottom:.55rem;font-size:.78rem;display:flex}.dash-cat-label{width:4.5rem;color:var(--text);white-space:nowrap;flex-shrink:0;font-weight:500}.dash-cat-bar-wrap{background:var(--bg-inset);border-radius:999px;flex:1;height:5px;overflow:hidden}.dash-cat-bar{background:var(--accent);border-radius:999px;min-width:2px;height:100%;transition:width .6s;display:block}.dash-cat-num{text-align:right;width:2.8rem;color:var(--text-tertiary);flex-shrink:0;font-size:.7rem;font-weight:500}.dash-revisit{color:var(--text-tertiary);flex-direction:column;gap:.15rem;font-size:.78rem;display:flex}.dash-revisit-item{border-radius:var(--radius-sm);color:inherit;flex-direction:column;gap:.05rem;padding:.45rem .6rem;text-decoration:none;transition:background .1s;display:flex}.dash-revisit-item:hover{background:var(--bg-inset)}.dash-revisit-title{color:var(--text);font-size:.8rem;font-weight:600}.dash-revisit-reason{color:var(--text-tertiary);text-overflow:ellipsis;white-space:nowrap;font-size:.7rem;overflow:hidden}@media (width<=800px){.dash-cards{grid-template-columns:repeat(2,1fr)}.dash-grid{grid-template-columns:1fr}.dash-header .hero-title{font-size:1.7rem}}.problem-table-wrap{margin:1rem 0}.problem-table{border-collapse:collapse;width:100%;font-size:.84rem}.problem-table thead{border-bottom:2px solid var(--border)}.problem-table th{text-align:left;color:var(--text);letter-spacing:.05em;text-transform:uppercase;padding:.5rem .65rem;font-size:.7rem;font-weight:600}.problem-table td{vertical-align:middle;padding:.5rem .65rem}.problem-table tbody tr{border-bottom:1px solid var(--border-light);transition:background .1s}.problem-table tbody tr:hover{background:var(--bg-inset)}.table-problem-link{color:var(--text);font-weight:600;text-decoration:none}.table-problem-link:hover{color:var(--accent)}.table-summary{color:var(--text-tertiary);text-overflow:ellipsis;white-space:nowrap;max-width:340px;margin-top:.1rem;font-size:.72rem;overflow:hidden}@media (width<=700px){.problem-table-wrap{overflow-x:auto}.problem-table{font-size:.76rem}.table-summary{max-width:160px}}.submission-summary{color:var(--text-secondary);background:var(--bg-inset);border-radius:var(--radius-sm);border:1px solid var(--border);margin-bottom:.6rem;padding:.55rem .85rem;font-size:.84rem}.submission-table-wrap{overflow-x:auto}@media (width<=700px){.submission-table-wrap table,.submission-table-wrap thead,.submission-table-wrap tbody,.submission-table-wrap th,.submission-table-wrap td,.submission-table-wrap tr{display:block}.submission-table-wrap thead{display:none}.submission-table-wrap tbody tr{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);margin-bottom:.45rem;padding:.75rem}.submission-table-wrap tbody td{border:none;gap:.4rem;padding:.18rem 0;display:flex}.submission-table-wrap tbody td:before{content:attr(data-label);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.03em;min-width:3rem;font-size:.7rem;font-weight:600}}.note-item{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);margin-bottom:1.5rem;padding:1rem 1.2rem;transition:box-shadow .2s,border-color .2s}.note-item:hover{box-shadow:var(--shadow-sm);border-color:var(--border-hover)}.note-item-meta{flex-wrap:wrap;justify-content:space-between;gap:.25rem;margin-bottom:.45rem;font-size:.78rem;display:flex}.note-item-link{color:var(--text);font-weight:600;text-decoration:none}.note-item-link:hover{color:var(--accent)}.note-item-platform{color:var(--text-tertiary)}.note-item-body{color:var(--text-secondary);white-space:pre-wrap;font-size:.85rem;line-height:1.7}.export-btn{border:1px solid var(--border);background:var(--bg-elevated);cursor:pointer;color:var(--text-secondary);padding:.4rem .9rem;font-family:inherit;font-size:.78rem;font-weight:500;transition:all .15s}.export-btn:first-of-type{border-radius:var(--radius) 0 0 var(--radius)}.export-btn:last-of-type{border-radius:0 var(--radius) var(--radius) 0;border-left:0}.export-btn:hover{background:var(--bg-inset);color:var(--text);border-color:var(--border-hover)}.export-btn:active{transform:scale(.97)}.analysis-meta{color:var(--text-tertiary);border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-inset);margin-bottom:1.8rem;padding:.55rem .9rem;font-size:.73rem;line-height:1.5}.sidebar-section{border-bottom:1px solid var(--border-light);margin-bottom:1rem;padding-bottom:1rem}.sidebar-section:last-child{border-bottom:none;margin-bottom:0}.sidebar-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;margin-bottom:.45rem;font-size:.65rem;font-weight:700}.sidebar-status{color:var(--text);font-size:.85rem;font-weight:700}.sidebar-diff{margin-top:.1rem;font-size:.78rem;font-weight:600}.sidebar-link{color:var(--accent);margin-top:.3rem;font-size:.73rem;font-weight:500;text-decoration:none;display:inline-block}.sidebar-link:hover{opacity:.65}.sidebar-ai{color:var(--text-secondary);font-size:.76rem;font-weight:500}.sidebar-ai-sub{color:var(--text-tertiary);margin-top:.1rem;font-size:.68rem}.sidebar-tags{flex-wrap:wrap;gap:.25rem;display:flex}.sidebar-section nav a{color:var(--text-tertiary);padding:.18rem 0;font-size:.74rem;text-decoration:none;transition:color .15s;display:block}.sidebar-section nav a:hover{color:var(--text)}.insight-cards{flex-direction:column;gap:.45rem;margin:.8rem 0 1.2rem;display:flex}.insight-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);gap:.75rem;padding:.65rem .95rem;transition:border-color .15s,box-shadow .15s;display:flex}.insight-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-xs)}.insight-num{color:var(--accent);font-size:.72rem;font-weight:700;font-family:var(--font-mono);opacity:.7;flex-shrink:0;min-width:1.4rem;padding-top:.12rem}.insight-text{color:var(--text-secondary);font-size:.9rem;line-height:1.7}.insight-conf{color:var(--text-tertiary);margin-left:.3rem;font-size:.72rem;font-style:italic}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}[data-problem-statement]{margin:1.5rem 0 2rem}[data-problem-statement] h2{letter-spacing:-.015em;color:var(--text);margin:0 0 1rem;font-size:1.2rem;font-weight:700;line-height:1.35}.statement-header-row{flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:.8rem;display:flex}.statement-toggle{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;align-items:center;gap:.35rem;min-height:40px;padding:.35rem .75rem;font-family:inherit;font-size:.78rem;font-weight:500;transition:all .15s;display:inline-flex}.statement-toggle:hover{border-color:var(--border-hover);color:var(--text);background:var(--bg-inset)}.statement-toggle[aria-expanded=true]{background:var(--bg-inset);color:var(--text);border-color:var(--border-hover)}.statement-toggle-icon{opacity:.5;font-size:.75rem;transition:transform .15s}.statement-meta{color:var(--text-tertiary);letter-spacing:.02em;font-size:.72rem;font-weight:500}.statement-meta-sep{color:var(--text-muted);opacity:.5}[data-problem-statement],[data-statement-sample],[data-statement-samples-heading]{scroll-margin-top:80px}#statement-content[hidden]{display:none}.statement-section{margin-bottom:1.2rem}.statement-section h3{color:var(--text);letter-spacing:-.005em;margin:1rem 0 .5rem;font-size:.92rem;font-weight:650}.statement-section p{color:var(--text-secondary);margin:.4rem 0;font-size:.9rem;line-height:1.8}.statement-content{overflow-wrap:anywhere;line-height:1.75}.statement-section .katex-display{max-width:100%;overflow:auto hidden}.statement-section table{max-width:100%;display:block;overflow-x:auto}.statement-missing{text-align:center;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);color:var(--text-tertiary);flex-direction:column;justify-content:center;align-items:center;gap:.4rem;min-height:40px;padding:2rem 1.5rem;display:flex}.statement-missing p{margin:0;font-size:.88rem}.statement-missing-detail{color:var(--text-muted);font-size:.78rem}.statement-image-warning{border-radius:var(--radius);color:#92400e;background:#fffbeb;border:1px solid #fcd34d;margin:.8rem 0;padding:.55rem .85rem;font-size:.8rem;font-weight:500;line-height:1.5}.dark .statement-image-warning{color:#fbbf24;background:#2d1f0e;border-color:#5c3d0e}.statement-sample{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);margin-bottom:1rem;padding:.75rem .85rem}.statement-sample h4{color:var(--text);margin:0 0 .5rem;font-size:.82rem;font-weight:600}.statement-sample-part{margin-bottom:.55rem}.statement-sample-part:last-child{margin-bottom:0}.statement-sample-header{justify-content:space-between;align-items:center;gap:.5rem;min-height:36px;margin-bottom:.2rem;display:flex}.statement-sample-header h5{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;flex-shrink:0;margin:0;font-size:.7rem;font-weight:700}.statement-copy-button{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-inset);color:var(--text-secondary);cursor:pointer;white-space:nowrap;flex-shrink:0;justify-content:center;align-items:center;min-width:56px;min-height:34px;padding:.25rem .65rem;font-family:inherit;font-size:.7rem;font-weight:500;transition:all .15s;display:inline-flex}.statement-copy-button:hover{border-color:var(--border-hover);color:var(--text);background:var(--bg-elevated)}.statement-copy-button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.statement-copy-button:disabled{opacity:.6;cursor:wait}.statement-copy-button[data-copy-state=success]{color:#065f46;background:#ecfdf5;border-color:#34d399}.dark .statement-copy-button[data-copy-state=success]{color:#a7f3d0;background:#022c22;border-color:#059669}.statement-copy-button[data-copy-state=error]{color:#991b1b;background:#fef2f2;border-color:#f87171}.dark .statement-copy-button[data-copy-state=error]{color:#fca5a5;background:#1f0808;border-color:#dc2626}.statement-copy-button[data-copy-state=empty]{border-color:var(--border);color:var(--text-muted);background:var(--bg-inset)}.statement-sample-part pre{background:var(--bg-inset);border:1px solid var(--border);border-radius:var(--radius);font-size:.78rem;line-height:1.65;font-family:var(--font-mono);color:var(--text-secondary);white-space:pre;max-width:100%;margin:0;padding:.65rem .85rem;overflow-x:auto}.statement-sample-part code{font-family:var(--font-mono);font-size:inherit;color:inherit;white-space:pre}.statement-sample-note{color:var(--text-tertiary);border-top:1px solid var(--border);gap:.4rem;margin-top:.35rem;padding:.35rem 0 0;font-size:.82rem;line-height:1.7;display:grid}.statement-sample-note-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;margin:0;font-size:.7rem;font-weight:600}.statement-sample-note-content{white-space:pre-line;overflow-wrap:anywhere;margin:0;line-height:1.65}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=600px){.statement-header-row{gap:.4rem}.statement-toggle{padding:.35rem .65rem;font-size:.76rem}.statement-missing{padding:1.5rem 1rem}.statement-sample{padding:.6rem .65rem}.statement-copy-button{min-width:48px;min-height:32px;padding:.2rem .55rem;font-size:.68rem}.statement-sample-header{gap:.35rem;min-height:32px}}.dark .statement-sample{background:var(--bg-inset);border-color:var(--border)}.dark .statement-sample-part pre{background:#00000040}.dark .statement-sample-note{border-top-color:var(--border)}.dark .statement-copy-button{border-color:var(--border);color:var(--text-tertiary);background:#ffffff0f}.dark .statement-copy-button:hover{border-color:var(--border-hover);color:var(--text-secondary);background:#ffffff1a}
