@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-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:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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 New", monospace;--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,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, 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]){-webkit-text-decoration:underline dotted;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;-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:where(:not(iframe)){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}}@layer components;@layer utilities{.visible{visibility:visible}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.order-501{order:501}.block{display:block}.hidden{display:none}.inline{display:inline}.table{display:table}.shrink{flex-shrink:1}.grow{flex-grow:1}.resize{resize:both}.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,)}}:root{--fe-content-width:calc(100% - 32px);--fe-content-max:720px;--bg-a:#e9eefb;--bg-b:#f6efff;--bg-c:#e6f6f4;--text:#141c2e;--muted:#4a566e;--accent:#3a56d4;--accent-ink:#fff;--accent-soft:#3a56d41f;--glass:#ffffffa3;--glass-strong:#ffffffd1;--glass-border:#ffffffbf;--line:#283c6e24;--shadow:0 10px 34px #36466b1a;--code-bg:#141c2e0f;--code-text:#1c2740;--ring:#3a56d4;--ok:#0f7a4d;--warn:#9a4b00;--tone-simple:58 86 212;--tone-example:14 140 128;--tone-answer:58 86 212;--tone-follow:124 77 214;--tone-pitfall:214 120 20;--ink-simple:#2b43b0;--ink-example:#0b6d63;--ink-answer:#2b43b0;--ink-follow:#5b34b0;--ink-pitfall:#8a4200;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}[data-theme=dark]{--bg-a:#0e1320;--bg-b:#17142b;--bg-c:#0c1f24;--text:#e9edf7;--muted:#a8b3cb;--accent:#8fa6ff;--accent-ink:#0e1320;--accent-soft:#8fa6ff29;--glass:#222a4094;--glass-strong:#1e263adb;--glass-border:#ffffff1a;--line:#ffffff21;--shadow:0 12px 36px #00000059;--code-bg:#00000052;--code-text:#dfe6f7;--ring:#a9bbff;--ok:#5fd6a0;--warn:#ffb866;--tone-simple:143 166 255;--tone-example:70 205 190;--tone-answer:143 166 255;--tone-follow:177 148 255;--tone-pitfall:255 170 70;--ink-simple:#b4c3ff;--ink-example:#7fe3d6;--ink-answer:#b4c3ff;--ink-follow:#cdb9ff;--ink-pitfall:#ffc684;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}html{scroll-behavior:auto;-webkit-text-size-adjust:100%}body{min-height:100dvh;color:var(--text);background-color:var(--bg-a);background-image:radial-gradient(900px 520px at 8% -6%, var(--accent), transparent 70%), radial-gradient(760px 520px at 100% 12%, rgb(var(--tone-follow)), transparent 70%), radial-gradient(800px 560px at 40% 105%, rgb(var(--tone-example)), transparent 70%);margin:0}@supports (color:color-mix(in lab, red, red)){body{background-image:radial-gradient(900px 520px at 8% -6%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%), radial-gradient(760px 520px at 100% 12%, color-mix(in srgb, rgb(var(--tone-follow)) 16%, transparent), transparent 70%), radial-gradient(800px 560px at 40% 105%, color-mix(in srgb, rgb(var(--tone-example)) 15%, transparent), transparent 70%)}}body{overflow-wrap:anywhere;background-attachment:fixed;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif;font-size:16px;line-height:1.65}html[data-restoring] .feed{visibility:hidden;animation:0s linear 2.5s forwards unhide}@keyframes unhide{to{visibility:visible}}button,input{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--ring);outline-offset:3px}.fe-header-wrap.fe-header-wrap{z-index:40;box-sizing:border-box;width:var(--fe-content-width,100%);max-width:var(--fe-content-max,100%);height:auto;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;pointer-events:none;background:0 0;border:0;margin:0 auto;padding:14px 0 0;position:sticky;top:0}.fe-header-wrap>*{pointer-events:auto}.fe-header.fe-header{box-sizing:border-box;-webkit-backdrop-filter:blur(26px)saturate(180%);backdrop-filter:blur(26px)saturate(180%);pointer-events:auto;background:linear-gradient(135deg,#ffffffb8,#f4f7fc85);border:1px solid #ffffffb3;border-radius:24px;justify-content:space-between;align-items:center;gap:18px;width:100%;max-width:none;height:auto;min-height:64px;margin:0;padding:10px 14px 10px 18px;display:flex;position:relative;top:auto;box-shadow:inset 0 1px #ffffffe6,inset 0 -1px #788caf1a,0 10px 34px #36466b1a}.fe-header :is(.brand,.logo){flex-shrink:0;font-size:21px}.fe-header :is(.header-actions,.header-tools,.header-right,.glass-actions){align-items:center;gap:6px;margin-left:auto;display:flex}.fe-header :is(.theme-toggle,.theme-button,#theme-toggle,.icon-button,.mobile-menu,.glass-theme){box-sizing:border-box;width:44px;min-width:44px;height:44px;min-height:44px;color:inherit;background:#fffc;border:0;border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;padding:0;display:inline-flex;position:relative;box-shadow:inset 0 1px #fff,0 2px 8px #314a6c1a}.fe-header :is(a,button,summary):focus-visible{outline-offset:3px;outline:2px solid}[data-theme=dark] .fe-header.fe-header{background:linear-gradient(135deg,#2c354a9e,#1a1f2c80);border-color:#ffffff17;box-shadow:inset 0 1px #ffffff1a,inset 0 -1px #00000040,0 12px 36px #00000059}[data-theme=dark] .fe-header :is(.theme-toggle,.theme-button,#theme-toggle,.icon-button,.mobile-menu,.glass-theme){background:#ffffff1f;box-shadow:inset 0 1px #ffffff24}@media (max-width:860px){.fe-header.fe-header{border-radius:20px;gap:8px;padding:8px 10px}}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.fe-header.fe-header{background:#f4f7fc}[data-theme=dark] .fe-header.fe-header{background:#202735}}@media (prefers-reduced-transparency:reduce){.fe-header.fe-header{-webkit-backdrop-filter:none;backdrop-filter:none;background:#f4f7fc}[data-theme=dark] .fe-header.fe-header{background:#202735}}@media (forced-colors:active){.fe-header.fe-header{box-shadow:none;background:canvas;border-color:canvastext}}.brand{color:inherit;align-items:center;gap:10px;min-width:0;text-decoration:none;display:inline-flex}.fe-header .brand-mark{width:32px;height:32px;color:var(--accent-ink);background:linear-gradient(135deg, var(--accent), var(--accent));border-radius:10px;justify-content:center;align-items:center;display:inline-flex}@supports (color:color-mix(in lab, red, red)){.fe-header .brand-mark{background:linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 55%, rgb(var(--tone-follow))))}}.fe-header .brand-mark{flex-shrink:0;box-shadow:inset 0 1px #ffffff59}.brand-text{flex-direction:column;min-width:0;line-height:1.15;display:flex}.brand-name{letter-spacing:-.01em;white-space:nowrap;font-size:20px;font-weight:700}.brand-tag{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;display:none;overflow:hidden}.search-inline{flex:220px;max-width:340px;margin-left:auto;display:none;position:relative}.search-toggle{display:inline-flex}.search-icon{color:var(--muted);pointer-events:none;position:absolute;top:50%;left:12px;translate:0 -50%}.search-input{box-sizing:border-box;border:1px solid var(--line);background:var(--glass-strong);width:100%;height:44px;color:var(--text);border-radius:999px;padding:0 12px 0 36px}.search-input::placeholder{color:var(--muted);opacity:.85}.badge{background:var(--accent);min-width:17px;height:17px;color:var(--accent-ink);text-align:center;box-sizing:border-box;border-radius:999px;padding:0 4px;font-size:11px;font-weight:700;line-height:17px;position:absolute;top:3px;right:3px}@media (min-width:861px){.search-inline{display:block}.search-toggle{display:none}}@media (min-width:560px){.brand-tag{display:block}}@media (max-width:400px){.brand-name{font-size:18px}}.status,.chips{border:1px solid var(--glass-border);background:var(--glass);-webkit-backdrop-filter:blur(18px)saturate(160%);backdrop-filter:blur(18px)saturate(160%);box-shadow:var(--shadow);color:var(--muted);border-radius:16px;align-items:center;gap:8px;margin-top:8px;padding:4px 6px 4px 14px;font-size:13px;display:flex}.status{justify-content:space-between;min-height:40px}.status-pos{text-overflow:ellipsis;white-space:nowrap;font-variant-numeric:tabular-nums;min-width:0;overflow:hidden}.status-actions{flex-shrink:0;gap:2px;display:inline-flex}.text-btn{min-height:36px;color:var(--text);white-space:nowrap;background:0 0;border:0;border-radius:999px;align-items:center;gap:5px;padding:0 10px;font-size:13px;font-weight:600;display:inline-flex}.text-btn:hover{background:var(--accent-soft)}@media (max-width:479px){.text-btn{justify-content:center;min-width:40px;padding:0 8px}.text-btn .lbl{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}.chips{scrollbar-width:none;padding:4px 8px 4px 12px;overflow-x:auto}.chips::-webkit-scrollbar{display:none}.chips-count{font-variant-numeric:tabular-nums;flex-shrink:0}.chip{border:1px solid var(--line);background:var(--glass-strong);min-height:32px;color:var(--text);white-space:nowrap;border-radius:999px;flex-shrink:0;align-items:center;gap:6px;padding:0 10px;font-size:12.5px;display:inline-flex}.chip-reset{background:var(--accent);color:var(--accent-ink);border-color:#0000;font-weight:600}.panel{overscroll-behavior:contain;border:1px solid var(--glass-border);background:var(--glass-strong);-webkit-backdrop-filter:blur(26px)saturate(180%);backdrop-filter:blur(26px)saturate(180%);border-radius:22px;gap:14px;max-height:calc(100dvh - 150px);margin-top:8px;padding:14px 16px 16px;display:grid;position:absolute;top:100%;left:0;right:0;overflow-y:auto;box-shadow:0 18px 50px #141e3c38}.panel[hidden]{display:none}.field-label{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:6px;padding:0;font-size:12px;font-weight:700;display:block}.seg-field{border:0;min-width:0;margin:0;padding:0}.search-box{position:relative}.panel .search-input{border-radius:14px}.seg{flex-wrap:wrap;gap:6px;display:flex}.seg-item{flex:auto;position:relative}.seg-item input,.check input{opacity:0;width:1px;height:1px;position:absolute}.seg-item span{border:1px solid var(--line);text-align:center;background:0 0;border-radius:14px;justify-content:center;align-items:center;min-height:44px;padding:0 14px;font-size:14px;font-weight:600;display:flex}.seg-item input:checked+span{background:var(--accent);color:var(--accent-ink);border-color:#0000}.seg-item input:focus-visible+span,.check input:focus-visible+span{outline:2px solid var(--ring);outline-offset:2px}.check{display:inline-flex;position:relative}.check span{border:1px solid var(--line);border-radius:14px;align-items:center;gap:10px;min-height:44px;padding:0 14px 0 8px;font-size:14px;font-weight:600;display:inline-flex}.check span:before{content:"";border:2px solid var(--muted);box-sizing:border-box;background:0 0;border-radius:7px;width:22px;height:22px}.check input:checked+span:before{background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12.5 4.5 4.5L19 7'/%3E%3C/svg%3E") center/80% no-repeat;border-color:var(--accent)}.hint{color:var(--muted);margin:8px 0 0;font-size:12.5px;line-height:1.5}.panel-foot{margin:0}.feed{box-sizing:border-box;width:var(--fe-content-width);max-width:var(--fe-content-max);margin:0 auto;padding:14px 0 64px}.intro{color:var(--muted);margin:4px 2px 8px;font-size:13.5px;line-height:1.55}.topic-title{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);align-items:baseline;gap:10px;margin:28px 2px 10px;font-size:13px;font-weight:800;display:flex}.topic-count{letter-spacing:0;text-transform:none;color:var(--muted);font-size:12px;font-weight:600}.card{border:1px solid var(--glass-border);background:var(--glass);-webkit-backdrop-filter:blur(16px)saturate(160%);backdrop-filter:blur(16px)saturate(160%);box-shadow:var(--shadow);border-radius:22px;margin:0 0 14px;padding:14px 8px 8px}.card[data-expanded=true]{background:var(--glass-strong)}.card-meta{flex-wrap:wrap;gap:6px;padding:0 10px 6px;display:flex}.tag{border:1px solid var(--line);color:var(--muted);border-radius:999px;align-items:center;gap:4px;padding:2px 9px;font-size:12px;font-weight:600;line-height:1.5;display:inline-flex}.tag-topic{color:var(--text)}.tag-essential{color:var(--accent);border-color:var(--accent)}@supports (color:color-mix(in lab, red, red)){.tag-essential{border-color:color-mix(in srgb, var(--accent) 45%, transparent)}}.tag-focus{color:var(--warn);border-color:var(--warn)}@supports (color:color-mix(in lab, red, red)){.tag-focus{border-color:color-mix(in srgb, var(--warn) 50%, transparent)}}.tag-mark-understood{color:var(--ok);border-color:var(--ok)}@supports (color:color-mix(in lab, red, red)){.tag-mark-understood{border-color:color-mix(in srgb, var(--ok) 55%, transparent)}}.tag-mark-review{color:var(--warn);border-color:var(--warn)}@supports (color:color-mix(in lab, red, red)){.tag-mark-review{border-color:color-mix(in srgb, var(--warn) 55%, transparent)}}.card[data-mark=understood]{border-left:3px solid var(--ok)}.card[data-mark=review]{border-left:3px solid var(--warn)}.card-q{font-size:inherit;font-weight:inherit;margin:0}.card-toggle{text-align:left;background:0 0;border:0;border-radius:14px;width:100%;padding:6px 10px 8px;display:block}.card-toggle:hover{background:var(--accent-soft)}.q-en{font-size:1.08rem;font-weight:700;line-height:1.4;display:block}.q-vi{color:var(--muted);margin-top:4px;font-size:.95rem;line-height:1.45;display:block}.reveal-hint{min-height:24px;color:var(--accent);align-items:center;gap:6px;margin-top:10px;font-size:13.5px;font-weight:700;display:inline-flex}.chev{transition:transform .28s}.card[data-expanded=true] .chev{transform:rotate(180deg)}code{background:var(--code-bg);color:var(--code-text);overflow-wrap:anywhere;border-radius:6px;padding:.08em .38em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace;font-size:.88em}.q-vi code,.q-en code{font-size:.85em}.answer-inner{grid-template-columns:minmax(0,1fr);gap:12px;padding:6px 4px;display:grid}.answer-reveal{transform-origin:50% 0;grid-template-rows:1fr;grid-template-columns:minmax(0,1fr);animation:.36s cubic-bezier(.2,.8,.25,1) both turn-in;display:grid}.answer-reveal>.answer-inner{min-height:0;overflow:hidden}@keyframes turn-in{0%{opacity:0;grid-template-rows:0fr;transform:perspective(900px)rotateX(-12deg)}to{opacity:1;grid-template-rows:1fr;transform:perspective(900px)rotateX(0)}}.block{border-left:3px solid var(--tone);background:rgb(var(--tone) / .1);border-radius:14px;min-width:0;max-width:100%;padding:12px 14px}.block p{margin:0 0 .75em}.block p:last-child{margin-bottom:0}.block-title{letter-spacing:.05em;text-transform:uppercase;color:var(--ink);align-items:center;gap:7px;margin:0 0 8px;font-size:12.5px;font-weight:800;display:flex}.block-simple{--tone:var(--tone-simple);--ink:var(--ink-simple)}.block-example{--tone:var(--tone-example);--ink:var(--ink-example)}.block-answer{--tone:var(--tone-answer);--ink:var(--ink-answer);background:rgb(var(--tone) / .16);border-left-width:4px}.block-follow{--tone:var(--tone-follow);--ink:var(--ink-follow)}.block-pitfall{--tone:var(--tone-pitfall);--ink:var(--ink-pitfall)}.block-sources{--tone:120 130 150;--ink:var(--muted);border-left-color:var(--line);background:0 0}.say{font-size:1.04rem;line-height:1.7}.follow-q{font-weight:700}.code{background:var(--code-bg);border:1px solid var(--line);tab-size:4;border-radius:12px;max-width:100%;margin:10px 0 2px;padding:12px 14px;font-size:13px;line-height:1.55;overflow-x:auto}.code code{font-size:inherit;white-space:pre;overflow-wrap:normal;background:0 0;padding:0;display:block}.sources{gap:2px;margin:0;padding:0;list-style:none;display:grid}.sources a{min-height:32px;color:var(--accent);text-underline-offset:3px;align-items:center;gap:6px;font-size:14px;text-decoration:underline;display:inline-flex}.card-actions{flex-wrap:wrap;gap:8px;padding:4px 2px 6px;display:flex}.btn{border:1px solid var(--line);background:var(--glass-strong);min-height:44px;color:var(--text);border-radius:999px;justify-content:center;align-items:center;gap:7px;padding:0 16px;font-size:14px;font-weight:600;display:inline-flex}.btn[aria-pressed=true].btn-understood{background:var(--ok);color:#fff;border-color:#0000}[data-theme=dark] .btn[aria-pressed=true].btn-understood{color:#07120d}.btn[aria-pressed=true].btn-review{background:var(--warn);color:#fff;border-color:#0000}[data-theme=dark] .btn[aria-pressed=true].btn-review{color:#1a0f00}.btn-ghost{background:0 0}.btn-collapse{margin-left:auto}.empty{text-align:center;color:var(--muted);justify-items:center;gap:10px;padding:40px 16px;display:grid}.foot{text-align:center;color:var(--muted);margin-top:36px;font-size:12.5px;line-height:1.5}@media (min-width:640px){.card{padding:16px 12px 10px}.block{padding:14px 18px}}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.card,.status,.chips{background:var(--glass-strong)}}@media (prefers-reduced-transparency:reduce){.card,.status,.chips,.panel{-webkit-backdrop-filter:none;backdrop-filter:none;background:var(--glass-strong)}}@media (prefers-reduced-motion:reduce){.answer-reveal{animation:none}.answer-reveal>.answer-inner{overflow:visible}.chev{transition:none}}@media (forced-colors:active){.card,.block,.status,.chips,.panel{background:canvas;border:1px solid canvastext}}.fe-header .brand{flex-shrink:1;min-width:0}.brand-name{text-overflow:ellipsis;overflow:hidden}@media (max-width:360px){.fe-header .header-actions{gap:4px}.fe-header .brand-mark{display:none}}.bi{grid-template-columns:minmax(0,1fr);gap:12px;display:grid}.col{min-width:0}.col p{margin:0 0 .75em}.col p:last-child{margin-bottom:0}.col .col-label{letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 6px;font-size:11.5px;font-weight:700}.col-vi{border-top:1px dashed var(--line);padding-top:10px}.q-pair{grid-template-columns:minmax(0,1fr);gap:4px;display:grid}.q-pair .q-vi{margin-top:0}.block .code{margin-top:12px}@media (min-width:900px){:root{--fe-content-max:1080px}.bi{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.col-vi{border-top:0;border-left:1px dashed var(--line);margin-left:-14px;padding-top:0;padding-left:28px}.q-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.card{padding:18px 16px 12px}.card-meta,.card-toggle{padding-left:14px;padding-right:14px}.block{padding:16px 22px 18px}.say{font-size:1rem}}@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}