/*! tailwindcss v4.3.0 | 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-border-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 New", monospace;--radius-lg:.5rem;--radius-xl:.75rem;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--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%;-moz-tab-size:4;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]){-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;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]){-webkit-appearance:button;-moz-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;-moz-appearance: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{.fixed{position:fixed}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.flex{display:flex}.table{display:table}.border{border-style:var(--tw-border-style);border-width:1px}.italic{font-style:italic}.underline{text-decoration-line:underline}}:root{--paper:#f8fafc;--paper-deep:#fff;--ink:#0f172a;--ink-soft:#334155;--muted:#64748b;--muted-2:#94a3b8;--hairline:#e2e8f0;--hairline-2:#cbd5e1;--accent:#6366f1;--accent-deep:#4f46e5;--accent-soft:#eef2ff;--highlight:#fde68a;--feat-sim:#6366f1;--feat-sim-deep:#4f46e5;--feat-sim-soft:#eef2ff;--feat-pres:#8b5cf6;--feat-pres-deep:#7c3aed;--feat-pres-soft:#f5f3ff;--feat-map:#06b6d4;--feat-map-deep:#0891b2;--feat-map-soft:#ecfeff;--feat-arena:#f97316;--feat-arena-deep:#ea580c;--feat-arena-soft:#fff7ed;--feat-video:#f43f5e;--feat-video-deep:#e11d48;--feat-video-soft:#fff1f2;--paper-shadow:#0f172a14;--shadow-sm:0 1px 2px #0f172a0f;--shadow-md:0 4px 16px #0f172a14;--shadow-lg:0 16px 40px #0f172a1f;--radius-sm:10px;--radius:16px;--radius-lg:20px;--radius-xl:28px}[data-theme=midnight]{--paper:#0f172a;--paper-deep:#1e293b;--ink:#f8fafc;--ink-soft:#cbd5e1;--muted:#94a3b8;--muted-2:#64748b;--hairline:#334155;--hairline-2:#475569;--accent:#818cf8;--accent-deep:#6366f1;--accent-soft:#6366f11a;--paper-shadow:#0009;--shadow-sm:0 1px 2px #0006;--shadow-md:0 4px 16px #0006;--shadow-lg:0 16px 40px #00000080}*,:before,:after{box-sizing:border-box}.skip-link{z-index:1000;background:var(--accent-deep);color:#fff;border-radius:8px;padding:10px 16px;font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:600;text-decoration:none;transition:top .2s;position:absolute;top:-100px;left:8px}.skip-link:focus{outline-offset:2px;outline:2px solid #fff;top:8px}:focus-visible{outline:2px solid var(--accent-deep);outline-offset:2px;border-radius:6px}html,body{background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;max-width:100%;margin:0;padding:0;font-family:IBM Plex Sans,system-ui,-apple-system,sans-serif;overflow-x:clip}img,video{max-width:100%}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(900px 600px at 8% -8%,#6366f10f,#0000 60%);position:fixed;top:0;right:0;bottom:0;left:0}[data-theme=midnight] body:before{background:radial-gradient(900px 600px at 8% -8%,#818cf824,#0000 60%)}.sans{font-family:IBM Plex Sans,system-ui,-apple-system,sans-serif}.serif{font-family:"Source Serif 4",Source Serif Pro,Georgia,serif}.mono{font-family:IBM Plex Mono,JetBrains Mono,ui-monospace,monospace}h1,h2,h3,h4{letter-spacing:-.015em;font-family:"Source Serif 4",Source Serif Pro,Georgia,serif}.eyebrow{letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:500}.btn{letter-spacing:.005em;cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:12px;align-items:center;gap:10px;padding:12px 20px;font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:600;text-decoration:none;transition:transform .15s,background .18s,color .18s,box-shadow .18s;display:inline-flex}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:#fff;box-shadow:0 6px 16px #6366f147}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px #6366f159}.btn-ghost{background:var(--paper-deep);color:var(--ink);border-color:var(--hairline)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep)}.btn .arrow{transition:transform .18s;display:inline-block}.btn:hover .arrow{transform:translate(4px)}.btn-sm{border-radius:10px;padding:9px 14px;font-size:13px}.container{z-index:1;width:100%;max-width:1280px;margin:0 auto;padding:0 32px;position:relative}@media(max-width:720px){.container{padding:0 20px}}section{z-index:1;position:relative}@media(max-width:720px){.hide-sm{display:none!important}}.topbar{border-bottom:1px solid var(--hairline);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:50;background:#f8fafcd9;font-family:IBM Plex Mono,monospace;font-size:11px;position:sticky;top:0}[data-theme=midnight] .topbar{background:#0f172ad9}.topbar-inner{justify-content:space-between;align-items:center;height:38px;display:flex}.topbar-inner .left,.topbar-inner .right{align-items:center;gap:14px;display:flex}.status-dot{vertical-align:middle;background:#10b981;border-radius:50%;flex-shrink:0;width:7px;height:7px;margin-right:6px;display:inline-block;box-shadow:0 0 0 3px #10b9812e}.eyebrow-status .status-pill{align-items:center;display:inline-flex}.lang-toggle{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:10px;align-items:center;gap:2px;padding:3px;display:inline-flex}.lang-toggle button{font:inherit;letter-spacing:.12em;color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:8px;flex-shrink:0;align-items:center;gap:7px;padding:6px 12px;font-size:12px;transition:background .18s,color .18s;display:inline-flex}.lang-toggle button:hover:not(.active){color:var(--ink)}.lang-toggle button .flag{filter:saturate(1.1);font-family:Apple Color Emoji,Segoe UI Emoji,Noto Color Emoji,sans-serif;font-size:16px;line-height:1}.lang-toggle button .code{white-space:nowrap;font-family:IBM Plex Mono,monospace;font-weight:500}.lang-toggle button.active{background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:#fff}.site-header{border-bottom:1px solid var(--hairline);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:50;background:#ffffffd9;position:sticky;top:0}[data-theme=midnight] .site-header{background:#0f172ad9}.site-header-inner{justify-content:space-between;align-items:center;gap:24px;padding:10px 0;display:flex}.logo{color:var(--ink);flex-shrink:0;align-items:center;gap:16px;min-width:0;text-decoration:none;display:flex}.logo img{z-index:1;flex-shrink:0;width:auto;height:96px;margin-top:-22px;margin-bottom:-22px;display:block;position:relative}.logo .wordmark{letter-spacing:-.01em;white-space:nowrap;font-family:"Source Serif 4",serif;font-size:30px;font-weight:600;line-height:1}.logo .wordmark em{color:var(--accent);font-style:italic}.nav{flex-wrap:nowrap;align-items:center;gap:22px;font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:500;display:flex}.nav a{color:var(--ink-soft);white-space:nowrap;padding:4px 0;text-decoration:none;transition:color .18s;position:relative}@media(max-width:1200px){.nav{gap:16px;font-size:13.5px}}@media(max-width:1080px){.nav{gap:14px;font-size:13px}}.nav a:hover{color:var(--accent-deep)}.nav a:after{content:"";background:var(--accent);transform-origin:0;border-radius:2px;height:2px;transition:transform .2s;position:absolute;bottom:-2px;left:0;right:0;transform:scaleX(0)}.nav a:hover:after{transform:scaleX(1)}.header-cta{align-items:center;gap:10px;display:flex}.hero{padding:80px 0 100px;position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(circle,#6366f114,#0000 70%);width:600px;height:600px;position:absolute;top:0;right:-10%}.hero-folio{justify-content:space-between;align-items:baseline;margin-bottom:32px;display:flex}.hero-folio .eyebrow{align-items:center;gap:12px;display:inline-flex}.hero-folio .eyebrow>span{background:var(--accent-soft);color:var(--accent-deep);letter-spacing:.18em;border-radius:999px;padding:6px 12px;font-size:11px}.hero-folio .eyebrow>span:first-child{background:var(--accent-deep);color:#fff}.hero-grid{grid-template-columns:1.4fr 1fr;align-items:start;gap:64px;display:grid}@media(max-width:1000px){.hero-grid{grid-template-columns:1fr;gap:48px}}.hero h1{letter-spacing:-.025em;text-wrap:balance;color:var(--ink);margin:0;font-family:"Source Serif 4",serif;font-size:clamp(44px,6vw,92px);font-weight:500;line-height:1.02}.hero h1 em{font-style:italic;font-weight:500}.hero h1 .underline{white-space:nowrap;position:relative}.hero h1 .underline:after{content:"";background:var(--accent-soft);z-index:-1;border-radius:4px;height:.22em;position:absolute;bottom:.06em;left:0;right:0}.hero h1 .accent{color:var(--accent-deep)}.hero-lead{border-top:1px solid var(--hairline);grid-template-columns:200px 1fr;gap:32px;margin-top:32px;padding-top:24px;display:grid}.hero-lead .meta{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,monospace;font-size:11px;line-height:1.7}.hero-lead p{color:var(--ink-soft);max-width:60ch;margin:0;font-size:18px;line-height:1.6}@media(max-width:720px){.hero-lead{grid-template-columns:1fr}}.hero-cta{flex-wrap:wrap;align-items:center;gap:12px;margin-top:36px;display:flex}.hero-cta .note{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-left:8px;font-family:IBM Plex Mono,monospace;font-size:11px}.hero-cover{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);min-height:440px;box-shadow:var(--shadow-md);flex-direction:column;gap:16px;padding:20px 20px 18px;font-family:IBM Plex Sans,sans-serif;display:flex;position:relative;overflow:hidden}.hero-cover:before{content:"";background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.6;height:1px;position:absolute;top:0;left:0;right:0}.hero-cover .cover-head{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--hairline);align-items:center;gap:10px;padding-bottom:14px;font-family:IBM Plex Mono,monospace;font-size:10px;display:flex}.hero-cover .ch-dot{background:#10b981;border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 3px #10b9812e}.hero-cover .cover-head>span:nth-child(2){flex:1}.hero-cover .ch-tag{letter-spacing:.06em;text-transform:uppercase;color:#10b981;background:#10b9811a;border-radius:999px;padding:3px 8px;font-family:IBM Plex Sans,sans-serif;font-size:10px;font-weight:600}.cover-stack{flex-direction:column;gap:8px;display:flex}.ccard{background:var(--paper);border:1px solid var(--hairline);color:var(--ink);border-radius:12px;grid-template-columns:44px 1fr auto;align-items:center;gap:14px;padding:12px 14px;text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s;display:grid;position:relative}[data-theme=midnight] .ccard{background:#ffffff05}.ccard:before{content:"";background:var(--cc-color,var(--accent));opacity:.7;border-radius:12px 0 0 12px;width:3px;position:absolute;top:0;bottom:0;left:0}.ccard:hover{border-color:var(--cc-color,var(--accent));box-shadow:var(--shadow-sm);transform:translate(2px)}.ccard:hover .ccard-go{color:var(--cc-color,var(--accent));transform:translate(3px)}.ccard[data-feat=sim]{--cc-color:var(--feat-sim);--cc-soft:var(--feat-sim-soft)}.ccard[data-feat=pres]{--cc-color:var(--feat-pres);--cc-soft:var(--feat-pres-soft)}.ccard[data-feat=map]{--cc-color:var(--feat-map);--cc-soft:var(--feat-map-soft)}.ccard[data-feat=arena]{--cc-color:var(--feat-arena);--cc-soft:var(--feat-arena-soft)}.ccard-icon{background:var(--cc-soft);width:36px;height:36px;color:var(--cc-color);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}[data-theme=midnight] .ccard-icon{background:#ffffff0a}.ccard-text{flex-direction:column;gap:1px;min-width:0;display:flex}.ccard-text strong{color:var(--ink);font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:600}.ccard-text em{color:var(--muted);letter-spacing:0;text-transform:none;font-family:IBM Plex Sans,sans-serif;font-size:12px;font-style:normal}.ccard-go{color:var(--muted-2);font-family:IBM Plex Sans,sans-serif;font-size:18px;transition:transform .18s,color .18s}.cover-foot{background:var(--accent-soft);border:1px solid var(--hairline);color:var(--ink-soft);border-radius:10px;align-items:center;gap:10px;margin-top:auto;padding:12px 14px;font-family:IBM Plex Sans,sans-serif;font-size:12px;display:flex}[data-theme=midnight] .cover-foot{background:#6366f11a}.cover-foot .cf-bell{color:var(--accent-deep);flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.cover-foot strong{color:var(--accent-deep);font-weight:700}.section-header{grid-template-columns:64px 1fr auto;align-items:end;gap:24px;margin-bottom:56px;display:grid}.section-header .num{background:var(--accent-soft);width:44px;height:44px;color:var(--accent-deep);letter-spacing:.04em;border:1px solid var(--hairline);border-radius:12px;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:14px;font-weight:700;display:inline-flex}[data-theme=midnight] .section-header .num{background:#6366f124}.section-header h2{letter-spacing:-.02em;text-wrap:balance;max-width:22ch;color:var(--ink);margin:0;font-family:"Source Serif 4",serif;font-size:clamp(32px,4vw,54px);font-weight:500;line-height:1.05}.section-header h2 em{color:var(--accent-deep);font-style:italic}.section-header .meta{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);text-align:right;font-family:IBM Plex Mono,monospace;font-size:10px;line-height:1.8}@media(max-width:720px){.section-header{grid-template-columns:48px 1fr}.section-header .meta{display:none}}section.spread{padding:96px 0}.stat-strip{grid-template-columns:repeat(4,1fr);gap:16px;padding:32px 0;display:grid}@media(max-width:800px){.stat-strip{grid-template-columns:1fr 1fr}}.stat-strip .stat{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px 24px;transition:transform .18s,box-shadow .18s,border-color .18s}.stat-strip .stat:hover{box-shadow:var(--shadow-md);border-color:var(--hairline-2);transform:translateY(-2px)}.stat-strip .stat:first-child{border-top:3px solid var(--feat-sim)}.stat-strip .stat:nth-child(2){border-top:3px solid var(--feat-pres)}.stat-strip .stat:nth-child(3){border-top:3px solid var(--feat-arena)}.stat-strip .stat:nth-child(4){border-top:3px solid var(--feat-map)}.stat-strip .num{color:var(--ink);letter-spacing:-.02em;font-family:"Source Serif 4",serif;font-size:44px;font-style:italic;font-weight:500;line-height:1}.stat-strip .num em{color:var(--accent-deep);font-style:italic}.stat-strip .lbl{color:var(--muted);margin-top:12px;font-family:IBM Plex Sans,sans-serif;font-size:12px;line-height:1.5}.stat-strip .lbl br{content:" ";margin-top:2px;display:block}.steps{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media(max-width:800px){.steps{grid-template-columns:1fr}}.step{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:12px;padding:32px 28px;transition:transform .18s,box-shadow .18s;display:flex;position:relative}.step:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.step:first-child{--step-color:var(--feat-sim);--step-soft:var(--feat-sim-soft)}.step:nth-child(2){--step-color:var(--feat-pres);--step-soft:var(--feat-pres-soft)}.step:nth-child(3){--step-color:var(--feat-arena);--step-soft:var(--feat-arena-soft)}.step:before{content:"";background:linear-gradient(90deg,var(--step-color),transparent);border-radius:0 0 4px 4px;height:3px;position:absolute;top:0;left:24px;right:24px}.step .num{background:var(--step-soft);width:44px;height:44px;color:var(--step-color);letter-spacing:0;border-radius:14px;justify-content:center;align-items:center;margin-bottom:6px;font-family:IBM Plex Mono,monospace;font-size:16px;font-weight:700;display:inline-flex}[data-theme=midnight] .step .num{background:#6366f11f}.step h3{letter-spacing:-.01em;color:var(--ink);margin:0;font-family:"Source Serif 4",serif;font-size:22px;font-weight:500;line-height:1.2}.step p{color:var(--ink-soft);margin:0;font-family:IBM Plex Sans,sans-serif;font-size:15px;line-height:1.55}.step .badge{letter-spacing:.16em;text-transform:uppercase;color:var(--step-color);background:var(--step-soft);border-radius:999px;align-self:flex-start;align-items:center;margin-top:12px;padding:6px 10px;font-family:IBM Plex Mono,monospace;font-size:10px;font-weight:600;display:inline-flex}[data-theme=midnight] .step .badge{background:#6366f11f}.demo-stage{grid-template-columns:1fr 1fr;align-items:stretch;gap:20px;display:grid}@media(max-width:900px){.demo-stage{grid-template-columns:1fr}}.demo-card{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);min-height:560px;box-shadow:var(--shadow-md);flex-direction:column;padding:0;transition:transform .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden}.demo-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.demo-card .demo-head{border-bottom:1px solid var(--hairline);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);background:linear-gradient(180deg,var(--paper-deep),var(--paper));justify-content:space-between;align-items:center;padding:14px 18px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.demo-card .demo-head .dot{background:var(--feat-sim);vertical-align:middle;border-radius:50%;width:8px;height:8px;margin-right:8px;animation:1.8s ease-in-out infinite pulseDot;display:inline-block;box-shadow:0 0 0 4px #6366f126}@keyframes pulseDot{0%,to{box-shadow:0 0 0 4px #6366f126}50%{box-shadow:0 0 0 8px #6366f10f}}.pdf-body{flex:1;padding:28px 32px;position:relative;overflow:hidden}.pdf-body h4{color:var(--ink);margin:0 0 14px;font-family:"Source Serif 4",serif;font-size:16px;font-weight:600}.pdf-line{background:var(--hairline);border-radius:999px;height:8px;margin:9px 0;position:relative;overflow:hidden}.pdf-line.short{width:64%}.pdf-line.medium{width:86%}.pdf-line.full{width:100%}.pdf-line.heading{background:var(--hairline-2);width:50%;height:12px;margin-top:20px}.pdf-line.scanning:after{content:"";background:linear-gradient(90deg,transparent,var(--feat-sim-soft) 40%,var(--feat-sim-soft) 60%,transparent);animation:1.4s ease-in-out infinite scanLine;position:absolute;top:0;right:0;bottom:0;left:0}@keyframes scanLine{0%{transform:translate(-100%)}to{transform:translate(100%)}}.pdf-scanner{pointer-events:none;border-top:1px solid var(--feat-sim);border-bottom:1px solid var(--feat-sim);z-index:2;background:linear-gradient(#0000,#6366f12e,#0000);height:42px;animation:4s ease-in-out infinite scanY;position:absolute;top:0;left:0;right:0}@keyframes scanY{0%{opacity:0;top:-10%}10%{opacity:1}90%{opacity:1}to{opacity:0;top:100%}}.quiz-body{flex-direction:column;flex:1;gap:14px;padding:24px 28px;display:flex}.quiz-head{justify-content:space-between;align-items:baseline;margin-bottom:4px;display:flex}.quiz-head .qmeta{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,monospace;font-size:10px}.quiz-head .timer{color:var(--feat-sim);background:var(--feat-sim-soft);border-radius:999px;padding:4px 10px;font-family:IBM Plex Mono,monospace;font-size:12px;font-weight:700}[data-theme=midnight] .quiz-head .timer{background:#6366f124}.quiz-question{color:var(--ink);border-left:3px solid var(--feat-sim);min-height:56px;margin-top:6px;padding-left:14px;font-family:"Source Serif 4",serif;font-size:20px;font-weight:500;line-height:1.35}.quiz-options{flex-direction:column;gap:10px;margin-top:6px;display:flex}.quiz-option{border:1px solid var(--hairline);background:var(--paper-deep);color:var(--ink);opacity:0;border-radius:12px;align-items:center;gap:12px;padding:12px 14px;font-family:IBM Plex Sans,sans-serif;font-size:14px;transition:opacity .4s,transform .4s,background .2s,border-color .2s;display:flex;transform:translateY(8px)}.quiz-option.show{opacity:1;transform:translateY(0)}.quiz-option .letter{background:var(--paper);border:1px solid var(--hairline);width:26px;height:26px;color:var(--muted);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:700;display:inline-flex}.quiz-option.correct{border-color:var(--feat-sim);background:var(--feat-sim-soft)}[data-theme=midnight] .quiz-option.correct{background:#6366f11a}.quiz-option.correct .letter{background:var(--feat-sim);color:#fff;border-color:var(--feat-sim)}.quiz-bar{border-top:1px solid var(--hairline);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);justify-content:space-between;align-items:center;margin-top:auto;padding-top:16px;font-family:IBM Plex Mono,monospace;font-size:10px;display:flex}.quiz-progress{background:var(--hairline);border-radius:999px;flex:1;height:6px;margin:0 14px;position:relative;overflow:hidden}.quiz-progress span{background:linear-gradient(90deg,var(--feat-sim),var(--feat-pres));border-radius:999px;width:33%;transition:width .5s;position:absolute;inset:0 auto 0 0}.demo-caption{color:var(--muted);text-align:center;max-width:60ch;margin-top:24px;margin-left:auto;margin-right:auto;font-family:IBM Plex Sans,sans-serif;font-size:13px;line-height:1.6}.demo-caption .figref{letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);background:var(--accent-soft);border-radius:6px;margin-right:8px;padding:4px 8px;font-family:IBM Plex Mono,monospace;font-size:10px}[data-theme=midnight] .demo-caption .figref{background:#6366f124}.editors-mark{border-radius:var(--radius-xl);background:var(--accent-soft);border:1px solid var(--hairline);text-align:center;grid-template-columns:1fr;gap:14px;margin:32px 0;padding:56px 32px;display:grid;position:relative;overflow:hidden}[data-theme=midnight] .editors-mark{background:#6366f11a}.editors-mark:before{content:"“";color:#6366f11f;pointer-events:none;font-family:"Source Serif 4",serif;font-size:220px;line-height:1;position:absolute;top:-40px;left:32px}.editors-mark .label{letter-spacing:.22em;text-transform:uppercase;color:var(--accent-deep);font-family:IBM Plex Mono,monospace;font-size:10px}.editors-mark blockquote{letter-spacing:-.01em;max-width:28ch;color:var(--ink);z-index:1;margin:0 auto;font-family:"Source Serif 4",serif;font-size:clamp(24px,3vw,40px);font-style:italic;font-weight:400;line-height:1.25;position:relative}.editors-mark blockquote .accent{color:var(--accent-deep);font-style:normal;font-weight:600}.features{grid-template-columns:repeat(12,1fr);gap:20px;display:grid}.feature{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);min-height:320px;box-shadow:var(--shadow-sm);flex-direction:column;padding:32px 28px;transition:transform .2s,box-shadow .2s,border-color .2s;display:flex;position:relative;overflow:hidden}.feature:before{content:"";background:linear-gradient(90deg,var(--feat-color),transparent);opacity:0;height:4px;transition:opacity .2s;position:absolute;top:0;left:0;right:0}.feature:hover{box-shadow:var(--shadow-lg);border-color:var(--feat-color);transform:translateY(-4px)}.feature:hover:before{opacity:1}.feature[data-feat=sim]{--feat-color:var(--feat-sim);--feat-soft:var(--feat-sim-soft)}.feature[data-feat=arena]{--feat-color:var(--feat-arena);--feat-soft:var(--feat-arena-soft)}.feature[data-feat=map]{--feat-color:var(--feat-map);--feat-soft:var(--feat-map-soft)}.feature[data-feat=pres]{--feat-color:var(--feat-pres);--feat-soft:var(--feat-pres-soft)}.feature[data-feat=video]{--feat-color:var(--feat-video);--feat-soft:var(--feat-video-soft)}.feature .ftag{letter-spacing:.12em;text-transform:uppercase;color:var(--feat-color);background:var(--feat-soft);border-radius:999px;align-self:flex-start;align-items:center;gap:8px;margin-bottom:22px;padding:6px 12px;font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:600;display:inline-flex}[data-theme=midnight] .feature .ftag{background:#ffffff0a}.feature h3{letter-spacing:-.015em;color:var(--ink);margin:0 0 12px;font-family:"Source Serif 4",serif;font-size:26px;font-weight:500;line-height:1.18}.feature h3 em{color:var(--feat-color);font-style:italic}.feature p{color:var(--ink-soft);margin:0 0 22px;font-family:IBM Plex Sans,sans-serif;font-size:15px;line-height:1.6}.feature .glyph{align-items:flex-end;height:96px;margin-top:auto;display:flex}.feature .coming{letter-spacing:.12em;text-transform:uppercase;color:#fff;background:linear-gradient(135deg,var(--feat-video),#ec4899);border-radius:999px;align-items:center;gap:4px;padding:4px 10px;font-family:IBM Plex Sans,sans-serif;font-size:10px;font-weight:700;display:inline-flex;position:absolute;top:18px;right:18px;box-shadow:0 4px 14px #f43f5e59}.feature.f-large,.feature.f-mid{grid-column:span 6}.feature.f-third{grid-column:span 4}@media(max-width:900px){.feature.f-large,.feature.f-mid,.feature.f-third{grid-column:span 12}}.feature .glyph{overflow:hidden}.glyph svg{width:100%;height:100%;overflow:visible}.gline{stroke:var(--feat-color,var(--accent));stroke-width:1.5px;fill:none}.gfill{fill:var(--feat-color,var(--accent))}.gbg{fill:var(--paper);stroke:var(--hairline-2)}.videolab{color:#fbe4ea;background:radial-gradient(at 80% 0,#f43f5e2e,#0000 55%),radial-gradient(at 0 100%,#ec489924,#0000 55%),linear-gradient(#1f1126,#160b1f);border-top:1px solid #f43f5e33;border-bottom:1px solid #f43f5e33;padding:96px 0;position:relative;overflow:hidden}.videolab .section-header .num{background:linear-gradient(135deg,var(--feat-video),#ec4899);color:#fff;border:0;box-shadow:0 8px 24px #f43f5e59}.videolab .section-header h2{color:#fff0f3}.videolab .section-header h2 em{background:linear-gradient(135deg,var(--feat-video),#f472b6);color:#0000;-webkit-background-clip:text;background-clip:text}.videolab .section-header .meta{color:#fff0f3a6}.vl-stage{grid-template-columns:1.1fr 1fr;align-items:stretch;gap:24px;display:grid}@media(max-width:1000px){.vl-stage{grid-template-columns:1fr}}.video-frame{border-radius:var(--radius-lg);aspect-ratio:16/10;background:#0a0612;border:1px solid #f43f5e4d;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.video-frame .vplay{background:linear-gradient(135deg,var(--feat-video),#ec4899);color:#fff;cursor:pointer;z-index:2;border-radius:50%;justify-content:center;align-items:center;width:84px;height:84px;font-size:28px;display:flex;box-shadow:0 0 0 8px #f43f5e2e,0 0 80px #f43f5e99}.video-frame .vlabel{letter-spacing:.18em;text-transform:uppercase;color:#fff0f3b3;z-index:2;font-family:IBM Plex Mono,monospace;font-size:10px;position:absolute;bottom:16px;left:18px}.video-frame .vtime{letter-spacing:.18em;color:#fff0f3b3;z-index:2;font-family:IBM Plex Mono,monospace;font-size:10px;position:absolute;bottom:16px;right:18px}.video-frame .vbg{background:linear-gradient(#0a06124d,#0a0612d9),repeating-linear-gradient(45deg,#f43f5e0f 0,#f43f5e0f 6px,#0000 6px,#0000 14px);position:absolute;top:0;right:0;bottom:0;left:0}.video-frame .vchapters{z-index:2;background:#ffffff1f;border-radius:999px;height:4px;position:absolute;bottom:36px;left:18px;right:18px;overflow:hidden}.video-frame .vchapters span{background:linear-gradient(90deg,var(--feat-video),#f472b6);border-radius:999px;width:38%;height:100%;display:block}.video-frame .vchapters i{background:#ffffff73;width:1px;height:10px;position:absolute;top:-3px}.video-side{letter-spacing:.18em;text-transform:uppercase;color:#fff0f3b3;font-family:IBM Plex Mono,monospace;font-size:10px;position:absolute;top:16px;left:18px}.vl-outputs{grid-template-columns:1fr 1fr;gap:14px;margin-top:18px;display:grid}.vl-output{color:#fff0f3e0;background:#ffffff08;border:1px solid #f43f5e40;border-radius:14px;flex-direction:column;gap:6px;padding:14px 16px;font-family:IBM Plex Sans,sans-serif;font-size:13px;transition:border-color .18s,background .18s;display:flex}.vl-output:hover{border-color:var(--feat-video);background:#f43f5e0f}.vl-output .otitle{letter-spacing:.16em;text-transform:uppercase;color:#f472b6;font-family:IBM Plex Mono,monospace;font-size:10px}.vl-output strong{color:#fff;font-weight:600}.chat-panel{border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0f0816b3;border:1px solid #f43f5e40;flex-direction:column;height:560px;max-height:560px;display:flex;position:relative;overflow:hidden}.chat-head{color:#fff0f3;letter-spacing:0;text-transform:none;border-bottom:1px solid #f43f5e33;justify-content:space-between;align-items:center;padding:14px 18px;font-family:IBM Plex Sans,sans-serif;font-size:12px;font-weight:600;display:flex}.chat-head .ai-tag{letter-spacing:.16em;text-transform:uppercase;color:#f472b6;align-items:center;gap:8px;font-family:IBM Plex Mono,monospace;font-size:10px;display:flex}.chat-head .ai-tag:before{content:"";background:#4ade80;border-radius:50%;width:7px;height:7px;box-shadow:0 0 10px #4ade80}.chat-body{scrollbar-width:thin;scrollbar-color:#f43f5e4d transparent;flex-direction:column;flex:1 1 0;gap:14px;min-height:0;padding:18px;display:flex;overflow:hidden auto}.chat-body::-webkit-scrollbar{width:6px}.chat-body::-webkit-scrollbar-thumb{background:#f43f5e4d;border-radius:3px}.chat-msg{max-width:90%;font-family:IBM Plex Sans,sans-serif;font-size:14px;line-height:1.55}.chat-msg.user{background:linear-gradient(135deg,var(--feat-video),#ec4899);color:#fff;border-radius:14px 14px 4px;align-self:flex-end;padding:10px 14px;box-shadow:0 4px 14px #f43f5e40}.chat-msg.ai{color:#fff0f3f0;background:#ffffff0a;border:1px solid #f43f5e33;border-radius:4px 14px 14px;padding:12px 14px}.chat-msg.ai em{color:#fff;font-style:italic}.chat-msg.ai .citation{letter-spacing:.12em;text-transform:uppercase;color:#f472b6;margin-top:6px;font-family:IBM Plex Mono,monospace;font-size:10px;display:block}.chat-typing{background:#ffffff0a;border-radius:4px 14px 14px;align-self:flex-start;align-items:center;gap:4px;padding:14px;display:inline-flex}.chat-typing span{background:#f472b6;border-radius:50%;width:6px;height:6px;animation:1.2s infinite typing}.chat-typing span:nth-child(2){animation-delay:.15s}.chat-typing span:nth-child(3){animation-delay:.3s}@keyframes typing{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.chat-suggest{flex-wrap:wrap;gap:8px;padding:0 18px 12px;display:flex}.chat-suggest button{color:#fff0f3e0;cursor:pointer;background:#ffffff0a;border:1px solid #f43f5e40;border-radius:999px;padding:8px 12px;font-family:IBM Plex Sans,sans-serif;font-size:12px;transition:all .15s}.chat-suggest button:hover{border-color:var(--feat-video);color:#fff;background:#f43f5e1a}.chat-input{border-top:1px solid #f43f5e33;align-items:stretch;display:flex}.chat-input input{color:#fff;background:0 0;border:0;outline:none;flex:1;padding:14px 18px;font-family:IBM Plex Sans,sans-serif;font-size:14px}.chat-input input::placeholder{color:#fff0f373}.chat-input button{background:linear-gradient(135deg,var(--feat-video),#ec4899);color:#fff;cursor:pointer;letter-spacing:.02em;border:0;padding:0 22px;font-family:IBM Plex Sans,sans-serif;font-size:13px;font-weight:600}.chat-input button:hover{filter:brightness(1.08)}.vl-soon{letter-spacing:.04em;text-transform:none;color:#f472b6;background:#f43f5e1f;border:1px solid #f43f5e4d;border-radius:999px;align-items:center;gap:8px;margin-top:22px;padding:10px 18px;font-family:IBM Plex Sans,sans-serif;font-size:12px;font-weight:600;display:inline-flex}.arena{color:#e2e8f0;background:radial-gradient(at 85% 15%,#f973161a,#0000 60%),linear-gradient(#0f172a,#0b1224);border-top:1px solid #e2e8f014;border-bottom:1px solid #e2e8f014;padding:110px 0 100px;position:relative;overflow:hidden}.arena-bg{display:none}.arena:after{content:"";pointer-events:none;background-image:linear-gradient(#e2e8f008 1px,#0000 1px),linear-gradient(90deg,#e2e8f008 1px,#0000 1px);background-size:56px 56px;position:absolute;top:0;right:0;bottom:0;left:0;-webkit-mask-image:radial-gradient(#000 25%,#0000 70%);mask-image:radial-gradient(#000 25%,#0000 70%)}.arena .container{z-index:2;position:relative}.arena .section-header .num{color:#fb923c;box-shadow:none;background:#f9731624;border:1px solid #f973164d}.arena .section-header h2{color:#f8fafc}.arena .section-header h2 em{color:#fb923c;background:0 0;-webkit-background-clip:initial;background-clip:initial;font-style:italic}.arena .section-header .meta{color:#e2e8f08c}.arena-stage{grid-template-columns:1.25fr 1fr;align-items:stretch;gap:24px;display:grid}@media(max-width:1000px){.arena-stage{grid-template-columns:1fr}}.arena-room{border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#ffffff08;border:1px solid #e2e8f01a;flex-direction:column;gap:22px;padding:26px 28px;display:flex;position:relative}.arena-head{border-bottom:1px dashed #e2e8f01f;grid-template-columns:repeat(4,1fr);gap:14px;padding-bottom:18px;display:grid}.arena-head>div{flex-direction:column;gap:4px;display:flex}.alabel{letter-spacing:.2em;text-transform:uppercase;color:#e2e8f08c;font-family:IBM Plex Mono,monospace;font-size:9px}.acode,.apwd,.aq-num,.atime{letter-spacing:.04em;color:#f8fafc;font-family:JetBrains Mono,IBM Plex Mono,monospace;font-size:22px;font-weight:700}.acode{color:#fb923c}.atime{color:#fbbf24;animation:1s ease-in-out infinite timerPulse}@keyframes timerPulse{0%,to{opacity:1}50%{opacity:.5}}.arena-question{letter-spacing:-.005em;color:#f8fafc;border-left:3px solid var(--feat-arena);padding-left:18px;font-family:"Source Serif 4",serif;font-size:clamp(22px,2.2vw,28px);line-height:1.3}.arena-answers{grid-template-columns:1fr 1fr;gap:12px;display:grid}@media(max-width:600px){.arena-answers{grid-template-columns:1fr}}.aopt{color:#f8fafc;background:#ffffff05;border:1px solid #e2e8f01f;border-radius:14px;align-items:center;gap:14px;padding:14px 18px;font-family:IBM Plex Sans,sans-serif;font-size:15px;transition:border-color .18s,background .18s,transform .18s;display:flex;position:relative}.aopt:hover{border-color:#f9731673;transform:translateY(-1px)}.aopt .l{color:#cbd5e1;background:#e2e8f00f;border:1px solid #e2e8f01f;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-family:IBM Plex Mono,monospace;font-size:12px;font-weight:700;display:inline-flex}.aopt-correct{background:#4ade801a;border-color:#4ade80;box-shadow:0 0 0 1px #4ade8066,0 0 40px #4ade802e}.aopt-correct .l{color:#1a0f08;background:#4ade80;border-color:#4ade80}.aspark{color:#4ade80;margin-left:auto;font-family:JetBrains Mono,monospace;font-size:13px;font-weight:700;animation:1.6s ease-out infinite sparkFloat}@keyframes sparkFloat{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-12px)}}.arena-board{border-radius:var(--radius-lg);background:#00000040;border:1px solid #e2e8f01a;flex-direction:column;gap:14px;padding:22px 22px 18px;display:flex}.board-head{border-bottom:1px dashed #e2e8f01f;justify-content:space-between;align-items:center;padding-bottom:12px;display:flex}.board-head .alabel{color:#e2e8f099}.alive-dot{background:#ef4444;border-radius:50%;width:8px;height:8px;animation:1.2s ease-in-out infinite livePulse;box-shadow:0 0 10px #ef444499}@keyframes livePulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}.board-list{flex-direction:column;gap:4px;margin:0;padding:0;list-style:none;display:flex;position:relative}.prow{border:1px solid #0000;border-radius:10px;grid-template-rows:auto auto;grid-template-columns:28px 1fr 52px 56px;align-items:center;gap:4px 10px;padding:10px 12px;font-family:IBM Plex Sans,sans-serif;transition:transform .5s cubic-bezier(.4,0,.2,1),background .3s,border-color .3s;display:grid}.prow .pos{color:#e2e8f0a6;text-align:center;font-family:IBM Plex Mono,monospace;font-size:14px;font-weight:700}.prow .pname{color:#f8fafc;font-size:13px;font-weight:500}.prow .phits{color:#34d399;text-align:right;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:700}.prow .ptime{color:#e2e8f0b3;text-align:right;font-family:JetBrains Mono,monospace;font-size:12px}.prow .pbar{background:#e2e8f014;border-radius:999px;grid-column:1/-1;height:3px;position:relative;overflow:hidden}.prow .pbar i{background:var(--feat-arena);border-radius:999px;transition:width .6s;display:block;position:absolute;inset:0 auto 0 0}.prow.rank-1{background:#fbbf2414;border-color:#fbbf244d}.prow.rank-1 .pos{color:#fbbf24}.prow.rank-1 .pbar i{background:#fbbf24}.prow.rank-1 .phits{color:#fbbf24}.prow.rank-2 .pos,.prow.rank-3 .pos{color:#fb923c}.prow.you{background:#6366f11f;border-color:#818cf880}.prow.you .pname{color:#a5b4fc;font-weight:700}.prow.bumped{animation:.6s ease-out bumpFlash}@keyframes bumpFlash{0%{background:#4ade8040}to{background:inherit}}.board-podium{border-top:1px dashed #e2e8f01f;grid-template-columns:1fr 1fr 1fr;align-items:end;gap:8px;margin-top:6px;padding-top:14px;display:grid}.podium-step{background:#e2e8f00d;border:1px solid #e2e8f01a;border-radius:10px 10px 0 0;flex-direction:column;justify-content:flex-end;align-items:center;gap:6px;padding:10px 6px;display:flex;position:relative}.podium-1{background:#fbbf241f;border-color:#fbbf2466;height:76px}.podium-2{height:60px}.podium-3{height:46px}.pmedal{color:#f8fafc;font-family:"Source Serif 4",serif;font-size:22px;font-style:italic;font-weight:600;line-height:1}.podium-1 .pmedal{color:#fbbf24;font-size:26px}.podium-step .pname{letter-spacing:.12em;text-transform:uppercase;color:#e2e8f0b3;font-family:IBM Plex Mono,monospace;font-size:9px}.arena-caption{text-align:center;color:#e2e8f0b3;max-width:62ch;margin:28px auto 0;font-family:IBM Plex Sans,sans-serif;font-size:15px;font-style:normal;line-height:1.6}.arena-caption strong{color:#fff;font-weight:700}.teachers{grid-template-columns:1fr 1fr;align-items:center;gap:56px;display:grid}@media(max-width:900px){.teachers{grid-template-columns:1fr}}.teachers .lede{letter-spacing:-.01em;color:var(--ink);text-wrap:balance;font-family:"Source Serif 4",serif;font-size:clamp(26px,3vw,40px);font-style:italic;font-weight:400;line-height:1.25}.teachers .lede .accent{color:var(--accent-deep);font-style:normal;font-weight:600}.teachers ul{flex-direction:column;gap:14px;margin:0;padding:0;list-style:none;display:flex}.teachers ul li{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius);box-shadow:var(--shadow-sm);grid-template-columns:48px 1fr;gap:18px;padding:18px 20px;transition:transform .18s,border-color .18s,box-shadow .18s;display:grid}.teachers ul li:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}.teachers ul li:first-child{--t-c:var(--feat-sim);--t-s:var(--feat-sim-soft)}.teachers ul li:nth-child(2){--t-c:var(--feat-arena);--t-s:var(--feat-arena-soft)}.teachers ul li:nth-child(3){--t-c:var(--feat-map);--t-s:var(--feat-map-soft)}.teachers ul li:nth-child(4){--t-c:var(--feat-pres);--t-s:var(--feat-pres-soft)}.teachers ul li .num{background:var(--t-s);width:36px;height:36px;color:var(--t-c);letter-spacing:.04em;border-radius:10px;justify-content:center;align-items:center;font-family:IBM Plex Mono,monospace;font-size:12px;font-weight:700;display:inline-flex}[data-theme=midnight] .teachers ul li .num{background:#6366f11f}.teachers ul li h4{color:var(--ink);margin:0 0 4px;font-family:"Source Serif 4",serif;font-size:18px;font-weight:600}.teachers ul li p{color:var(--ink-soft);margin:0;font-family:IBM Plex Sans,sans-serif;font-size:14px;line-height:1.55}.testi-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media(max-width:900px){.testi-grid{grid-template-columns:1fr}}.testi{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;padding:28px;transition:transform .18s,box-shadow .18s;display:flex}.testi:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}.testi .quote-mark{color:var(--accent-deep);opacity:.85;margin-bottom:14px;font-family:"Source Serif 4",serif;font-size:64px;font-style:italic;font-weight:600;line-height:.6}.testi blockquote{color:var(--ink);letter-spacing:-.005em;margin:0 0 24px;font-family:"Source Serif 4",serif;font-size:18px;font-weight:400;line-height:1.5}.testi blockquote em{color:var(--accent-deep);font-style:italic}.testi .author{border-top:1px solid var(--hairline);flex-direction:column;gap:2px;margin-top:auto;padding-top:16px;font-family:IBM Plex Sans,sans-serif;font-size:13px;display:flex}.testi .author strong{color:var(--ink);font-weight:600}.testi .author .role{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,monospace;font-size:10px}.faq-list{flex-direction:column;gap:12px;display:flex}.faq-item{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius);transition:border-color .18s,box-shadow .18s;overflow:hidden}.faq-item.open{border-color:var(--accent);box-shadow:var(--shadow-md)}.faq-q{text-align:left;cursor:pointer;letter-spacing:-.005em;width:100%;color:var(--ink);background:0 0;border:0;grid-template-columns:64px 1fr 32px;align-items:center;gap:20px;padding:20px 24px;font-family:"Source Serif 4",serif;font-size:18px;font-weight:500;display:grid}.faq-q .num{letter-spacing:.12em;color:var(--accent-deep);background:var(--accent-soft);text-align:center;border-radius:6px;padding:4px 8px;font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:700}[data-theme=midnight] .faq-q .num{background:#6366f124}.faq-q .toggle{background:var(--paper);border:1px solid var(--hairline);width:32px;height:32px;color:var(--ink-soft);border-radius:10px;justify-content:center;align-items:center;font-family:IBM Plex Sans,sans-serif;font-size:16px;font-weight:500;transition:background .2s,color .2s,transform .3s,border-color .2s;display:inline-flex}.faq-item.open .faq-q .toggle{background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:#fff;border-color:var(--accent);transform:rotate(45deg)}.faq-a{grid-template-columns:64px 1fr 32px;gap:20px;max-height:0;transition:max-height .4s,padding .3s;display:grid;overflow:hidden}.faq-item.open .faq-a{max-height:500px;padding:0 24px 24px}.faq-a>div:nth-child(2){color:var(--ink-soft);max-width:64ch;font-family:IBM Plex Sans,sans-serif;font-size:15px;line-height:1.6}@media(max-width:720px){.faq-q,.faq-a{grid-template-columns:50px 1fr 32px}.faq-q{font-size:16px}}.help-hero{border-bottom:1px solid var(--hairline);background:radial-gradient(at 10% 0,#6366f11a,#0000 55%),radial-gradient(at 90% 100%,#8b5cf614,#0000 60%);padding:72px 0 56px;position:relative}.help-crumbs{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);align-items:center;gap:8px;margin-bottom:20px;font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:500;display:inline-flex}.help-crumbs a{color:var(--accent-deep);text-decoration:none;transition:color .18s}.help-crumbs a:hover{color:var(--accent)}.help-title{letter-spacing:-.025em;max-width:22ch;color:var(--ink);text-wrap:balance;margin:0 0 18px;font-family:"Source Serif 4",serif;font-size:clamp(36px,5vw,64px);font-weight:500;line-height:1.05}.help-title em{color:var(--accent-deep);font-style:italic}.help-lead{max-width:60ch;color:var(--ink-soft);margin:0 0 32px;font-size:17px;line-height:1.6}.help-search{background:var(--paper-deep);border:1px solid var(--hairline);max-width:640px;box-shadow:var(--shadow-sm);border-radius:14px;align-items:center;gap:12px;padding:4px 8px 4px 18px;transition:border-color .18s,box-shadow .18s;display:flex}.help-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px #6366f12e}.help-search svg{color:var(--muted);flex-shrink:0}.help-search input{color:var(--ink);background:0 0;border:0;outline:none;flex:1;min-width:0;padding:14px 0;font-family:IBM Plex Sans,sans-serif;font-size:15px}.help-search input::placeholder{color:var(--muted-2)}.help-search-clear{background:var(--paper);border:1px solid var(--hairline);width:28px;height:28px;color:var(--ink-soft);cursor:pointer;border-radius:8px;flex-shrink:0;font-size:18px;line-height:1;transition:background .18s,color .18s}.help-search-clear:hover{background:var(--accent-soft);color:var(--accent-deep)}.help-stats{grid-template-columns:repeat(3,auto);gap:32px;margin-top:36px;display:grid}.help-stats>div{flex-direction:column;gap:4px;display:flex}.help-stats strong{color:var(--ink);letter-spacing:-.01em;font-family:"Source Serif 4",serif;font-size:26px;font-style:italic;font-weight:500}.help-stats span{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,monospace;font-size:11px}.help-categories{padding-top:72px}.help-cat-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}@media(max-width:900px){.help-cat-grid{grid-template-columns:1fr}}.help-cat{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;gap:20px;padding:28px 26px;transition:box-shadow .2s,border-color .2s;display:flex}.help-cat:hover{box-shadow:var(--shadow-md);border-color:var(--hairline-2)}.help-cat[data-kind=account]{--hc-color:var(--feat-sim);--hc-soft:var(--feat-sim-soft)}.help-cat[data-kind=plan]{--hc-color:var(--feat-pres);--hc-soft:var(--feat-pres-soft)}.help-cat[data-kind=content]{--hc-color:var(--feat-map);--hc-soft:var(--feat-map-soft)}.help-cat[data-kind=arena]{--hc-color:var(--feat-arena);--hc-soft:var(--feat-arena-soft)}.help-cat[data-kind=privacy]{--hc-color:var(--feat-video);--hc-soft:var(--feat-video-soft)}.help-cat[data-kind=tech]{--hc-color:var(--accent-deep);--hc-soft:var(--accent-soft)}.help-cat-head{grid-template-columns:48px 1fr;align-items:start;gap:16px;display:grid}.help-cat-icon{background:var(--hc-soft,var(--accent-soft));width:48px;height:48px;color:var(--hc-color,var(--accent-deep));border-radius:12px;justify-content:center;align-items:center;display:inline-flex}[data-theme=midnight] .help-cat-icon{background:#ffffff0a}.help-cat h3{color:var(--ink);letter-spacing:-.01em;margin:0 0 4px;font-family:"Source Serif 4",serif;font-size:22px;font-weight:600}.help-cat-head p{color:var(--ink-soft);margin:0;font-family:IBM Plex Sans,sans-serif;font-size:14px;line-height:1.5}.help-articles{border-top:1px solid var(--hairline);flex-direction:column;gap:6px;margin:0;padding:18px 0 0;list-style:none;display:flex}.help-articles details{border-radius:10px;transition:background .18s}.help-articles details[open]{background:var(--hc-soft,var(--accent-soft))}[data-theme=midnight] .help-articles details[open]{background:#ffffff08}.help-articles summary{cursor:pointer;color:var(--ink);border-radius:10px;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:500;list-style:none;display:flex}.help-articles summary::-webkit-details-marker{display:none}.help-articles summary:after{content:"+";color:var(--hc-color,var(--muted));flex-shrink:0;font-family:IBM Plex Mono,monospace;font-size:16px;transition:transform .2s}.help-articles details[open] summary:after{content:"−";transform:rotate(0)}.help-articles summary:hover{color:var(--hc-color,var(--accent-deep))}.help-articles details p{color:var(--ink-soft);margin:0;padding:0 12px 14px;font-family:IBM Plex Sans,sans-serif;font-size:14px;line-height:1.6}.help-empty{text-align:center;border:1px dashed var(--hairline-2);border-radius:var(--radius-lg);background:var(--paper-deep);flex-direction:column;align-items:center;gap:10px;padding:48px 32px;display:flex}.help-empty strong{color:var(--ink);font-family:"Source Serif 4",serif;font-size:22px;font-style:italic}.help-empty span{color:var(--muted);max-width:48ch;font-family:IBM Plex Sans,sans-serif;font-size:14px}.help-contact-card{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);background:radial-gradient(ellipse at 0% 0%,#6366f11f,transparent 50%),var(--paper-deep);grid-template-columns:1.5fr auto;align-items:center;gap:32px;padding:48px 40px;display:grid}.help-contact-card h2{color:var(--ink);text-wrap:balance;margin:0 0 12px;font-family:"Source Serif 4",serif;font-size:clamp(26px,3vw,38px);font-weight:500;line-height:1.1}.help-contact-card h2 em{color:var(--accent-deep);font-style:italic}.help-contact-card p{color:var(--ink-soft);max-width:56ch;margin:0;font-size:15px;line-height:1.6}.help-contact-actions{flex-direction:column;gap:12px;min-width:260px;display:flex}.contact-email-pill{border:1px solid var(--hairline);background:var(--paper);border-radius:12px;flex-direction:column;gap:4px;padding:12px 18px;text-decoration:none;transition:border-color .18s,background .18s,transform .15s;display:flex}.contact-email-pill:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px)}.contact-email-pill .cep-label{letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-family:IBM Plex Mono,monospace;font-size:10px;font-weight:600}.contact-email-pill .cep-value{color:var(--accent-deep);word-break:break-all;font-family:IBM Plex Mono,monospace;font-size:15px;font-weight:600}.help-contact-note{color:var(--muted);grid-column:1/-1;margin:12px 0 0;font-family:IBM Plex Sans,sans-serif;font-size:12.5px;line-height:1.55}@media(max-width:800px){.help-contact-card{grid-template-columns:1fr;gap:22px;padding:32px 24px}.help-contact-actions{min-width:0}}@media(max-width:720px){.help-hero{padding:48px 0 40px}.help-lead{margin-bottom:24px;font-size:15px}.help-stats{grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}.help-stats strong{font-size:22px}.help-categories{padding-top:48px}.help-cat{gap:16px;padding:22px 20px}.help-cat h3{font-size:19px}.help-cat-head{grid-template-columns:40px 1fr;gap:12px}.help-cat-icon{width:40px;height:40px}.help-articles summary{padding:10px;font-size:13px}}.institutions{padding:96px 0;position:relative}.inst-eyebrow{border:1px solid var(--hairline);background:var(--paper-deep);letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);border-radius:999px;align-items:center;gap:10px;margin-bottom:24px;padding:8px 14px;font-family:IBM Plex Mono,monospace;font-size:10px;font-weight:600;display:inline-flex}.inst-eyebrow .dot{background:var(--accent);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #6366f12e}.inst-title{letter-spacing:-.02em;max-width:22ch;color:var(--ink);text-wrap:balance;margin:0 0 16px;font-family:"Source Serif 4",serif;font-size:clamp(32px,4vw,54px);font-weight:500;line-height:1.05}.inst-title em{color:var(--accent-deep);font-style:italic}.inst-subtitle{max-width:64ch;color:var(--ink-soft);margin:0 0 48px;font-size:16px;line-height:1.6}.inst-grid{grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 32px;padding:0;list-style:none;display:grid}@media(max-width:1000px){.inst-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:720px){.inst-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:420px){.inst-grid{grid-template-columns:1fr}}.inst-card{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius);flex-direction:column;align-items:flex-start;gap:10px;padding:20px 18px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden}.inst-card:before{content:"";background:var(--ic-color,var(--accent));opacity:.6;height:2px;position:absolute;top:0;left:0;right:0}.inst-card:hover{border-color:var(--ic-color,var(--accent));box-shadow:var(--shadow-md);transform:translateY(-3px)}.inst-card[data-kind=uni]{--ic-color:var(--feat-sim);--ic-soft:var(--feat-sim-soft)}.inst-card[data-kind=school]{--ic-color:var(--feat-map);--ic-soft:var(--feat-map-soft)}.inst-card[data-kind=concurso]{--ic-color:var(--feat-arena);--ic-soft:var(--feat-arena-soft)}.inst-card .inst-icon{background:var(--ic-soft);width:40px;height:40px;color:var(--ic-color);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}[data-theme=midnight] .inst-card .inst-icon{background:#ffffff0a}.inst-card strong{color:var(--ink);font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:600;line-height:1.3}.inst-card .inst-tag{letter-spacing:.14em;text-transform:uppercase;color:var(--ic-color);background:var(--ic-soft);border-radius:6px;padding:4px 8px;font-family:IBM Plex Mono,monospace;font-size:10px;font-weight:600}[data-theme=midnight] .inst-card .inst-tag{background:#ffffff0a}.inst-cta{border:1px dashed var(--hairline-2);border-radius:var(--radius-lg);background:var(--paper-deep);flex-wrap:wrap;align-items:center;gap:18px;padding:22px 26px;display:flex}.inst-cta span{color:var(--ink);flex:1;min-width:220px;font-family:"Source Serif 4",serif;font-size:18px;font-style:italic}.inst-cta .btn{flex-shrink:0}.site-footer{color:#e2e8f0;background:radial-gradient(at 0 0,#6366f124,#0000 60%),linear-gradient(#0f172a,#0b1224);margin-top:56px;padding:80px 0 32px;position:relative}.site-footer .container{color:#e2e8f0}.footer-top{border-bottom:1px solid #e2e8f01f;grid-template-columns:1.6fr 1fr;gap:48px;padding-bottom:48px;display:grid}@media(max-width:800px){.footer-top{grid-template-columns:1fr}}.footer-top h2{letter-spacing:-.02em;color:#fff;margin:0 0 14px;font-family:"Source Serif 4",serif;font-size:clamp(30px,4vw,50px);font-weight:500;line-height:1.1}.footer-top h2 em{color:#a5b4fc;font-style:italic}.footer-top p{color:#e2e8f0b3;max-width:52ch;margin:0;font-family:IBM Plex Sans,sans-serif;font-size:16px;line-height:1.55}.footer-cols{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding:48px 0;display:grid}@media(max-width:800px){.footer-cols{grid-template-columns:1fr 1fr}}.footer-cols .brand img,.footer-cols .brand .footer-logo{width:auto;height:88px;margin-bottom:18px;display:block}.footer-cols .brand p{color:#e2e8f099;max-width:36ch;font-family:IBM Plex Sans,sans-serif;font-size:13px;line-height:1.55}.footer-cols h5{letter-spacing:.18em;text-transform:uppercase;color:#e2e8f080;margin:0 0 16px;font-family:IBM Plex Mono,monospace;font-size:11px;font-weight:700}.footer-cols ul{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.footer-cols a{color:#e2e8f0;font-family:IBM Plex Sans,sans-serif;font-size:14px;text-decoration:none;transition:color .18s}.footer-cols a:hover{color:#818cf8}.footer-contact-link{color:#e2e8f0;align-items:center;gap:8px;font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:500;text-decoration:none;transition:color .18s;display:inline-flex}.footer-contact-link:hover{color:#a5b4fc}.footer-contact-link .arrow{color:#818cf8;font-size:14px;line-height:1;transition:transform .18s}.footer-contact-link:hover .arrow{transform:translate(3px)}.footer-base{letter-spacing:.14em;text-transform:uppercase;color:#e2e8f080;border-top:1px solid #e2e8f01f;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding-top:24px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.dl-mark{opacity:.78;align-items:center;gap:3px;text-decoration:none;transition:opacity .18s;display:inline-flex}.dl-mark:hover{opacity:1}.dl-mark .dl-by{color:var(--muted);font-family:"Source Serif 4",serif;font-size:13px;font-style:italic}.dl-mark img{filter:grayscale(.15);width:auto;height:52px;transition:filter .18s,transform .18s;display:block}.dl-mark:hover img{filter:none;transform:scale(1.04)}.dl-mark-dark .dl-by{color:#e2e8f08c}.dl-mark-dark img{filter:brightness(1.15)grayscale(.05)}.dl-mark-dark:hover img{filter:brightness(1.3)}[lang-en],html[data-lang=en] [lang-pt]{display:none!important}html[data-lang=en] [lang-en]{display:revert!important}[lang-en-block],html[data-lang=en] [lang-pt-block]{display:none!important}html[data-lang=en] [lang-en-block]{display:block!important}.reveal{opacity:0;transition:opacity .7s,transform .7s;transform:translateY(18px)}.reveal.in{opacity:1;transform:none}.nav-toggle{background:var(--paper-deep);border:1px solid var(--hairline);cursor:pointer;border-radius:10px;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;padding:0;transition:border-color .18s,background .18s;display:none;position:relative}.nav-toggle:hover{border-color:var(--accent)}.nav-toggle span{background:var(--ink);border-radius:2px;width:18px;height:2px;transition:transform .25s,opacity .2s;display:block}.nav-toggle[aria-expanded=true] span:first-child{transform:translateY(7px)rotate(45deg)}.nav-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.nav-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.nav .nav-cta{display:none}@media(max-width:900px){.nav-toggle{display:inline-flex}.site-header .header-cta>.dl-mark,.site-header .header-cta>.btn.btn-ghost{display:none}.site-header .nav{background:var(--paper);border-top:1px solid var(--hairline);-webkit-overflow-scrolling:touch;opacity:0;visibility:hidden;pointer-events:none;z-index:60;flex-direction:column;align-items:stretch;gap:0;width:100%;max-width:100vw;max-height:80vh;padding:16px 20px 24px;transition:opacity .22s,transform .22s,visibility 0s linear .22s;position:absolute;top:100%;left:0;right:0;overflow-y:auto;transform:translateY(-6px);box-shadow:0 20px 40px #00000073;display:flex!important}.site-header .nav.nav-open{opacity:1;visibility:visible;pointer-events:auto;transition:opacity .22s,transform .22s,visibility linear;transform:none}.site-header .nav a{border-bottom:1px solid var(--hairline);color:var(--ink);padding:14px 4px;font-size:16px;font-weight:500;text-decoration:none;display:block}.site-header .nav a:last-of-type{border-bottom:0}.site-header .nav a:after{display:none}.site-header .nav .nav-cta{background:linear-gradient(135deg,var(--accent),var(--accent-deep));border-radius:12px;justify-content:center;align-items:center;margin-top:14px;padding:13px 20px;font-size:15px;font-weight:600;text-decoration:none;display:inline-flex;color:#fff!important;border-bottom:0!important}body.nav-open{overflow:hidden}.site-header-inner{gap:12px;padding:8px 0}.logo{gap:12px}.logo img{height:78px;margin-top:-16px;margin-bottom:-16px}.logo .wordmark{font-size:24px}.header-cta{gap:6px}.lang-toggle{padding:2px}.lang-toggle button{padding:5px 9px;font-size:11px}.lang-toggle button .code{display:none}.lang-toggle button .flag{font-size:18px}}@media(max-width:720px){section.spread{padding:56px 0}.hero{padding:40px 0 60px}.arena{padding:64px 0 56px}.videolab,.institutions{padding:56px 0}.inst-subtitle{margin-bottom:32px;font-size:15px}.inst-grid{gap:10px;margin-bottom:24px}.inst-card{gap:8px;padding:16px 14px}.inst-card strong{font-size:13px}.inst-cta{padding:18px 20px}.inst-cta span{min-width:0;font-size:16px}.site-footer{margin-top:32px;padding:56px 0 24px}.hero-folio{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px}.hero-folio .eyebrow{flex-wrap:wrap;gap:8px}.hero-folio .eyebrow>span{letter-spacing:.14em;padding:5px 10px;font-size:10px}.hero-grid{gap:32px}.hero-lead{gap:16px;margin-top:22px;padding-top:18px}.hero-lead p{font-size:16px}.hero-cta{gap:10px;margin-top:24px}.hero-cta .btn-primary{justify-content:center;width:100%}.hero-cta .note{margin-left:0}.hero-cover{gap:12px;min-height:0;padding:16px}.hero-cover .cover-head{padding-bottom:10px;font-size:9px}.ccard{grid-template-columns:36px 1fr auto;gap:10px;padding:10px 12px}.ccard-icon{width:30px;height:30px}.ccard-icon svg{width:16px;height:16px}.ccard-text strong{font-size:13px}.ccard-text em{font-size:11px}.cover-foot{padding:10px 12px;font-size:11px}.stat-strip{gap:10px;padding:20px 0}.stat-strip .stat{padding:16px 14px}.stat-strip .num{font-size:32px}.stat-strip .lbl{margin-top:8px;font-size:11px}.section-header{align-items:center;gap:14px;margin-bottom:32px}.section-header .num{border-radius:10px;width:38px;height:38px;font-size:12px}.step{padding:24px 22px}.step h3{font-size:20px}.demo-stage{gap:14px}.demo-card{min-height:0}.pdf-body{padding:20px 22px}.quiz-body{gap:12px;padding:18px 20px}.quiz-question{min-height:0;padding-left:12px;font-size:17px}.quiz-option{padding:10px 12px;font-size:13px}.quiz-option .letter{width:24px;height:24px}.demo-caption{margin-top:16px;font-size:12px}.editors-mark{margin:24px 0;padding:36px 22px}.editors-mark:before{font-size:140px;top:-26px;left:18px}.editors-mark blockquote{font-size:22px}.features{gap:14px}.feature{min-height:0;padding:24px 22px}.feature .ftag{margin-bottom:16px}.feature h3{font-size:22px}.feature p{margin-bottom:16px;font-size:14px}.feature .glyph{height:76px}.vl-stage{gap:18px}.video-frame{border-radius:var(--radius)}.video-frame .vplay{width:60px;height:60px;font-size:22px;box-shadow:0 0 0 6px #f43f5e2e,0 0 60px #f43f5e80}.video-frame .vlabel,.video-frame .vtime,.video-side{letter-spacing:.14em;font-size:9px}.video-frame .vchapters{bottom:28px;left:14px;right:14px}.video-frame .vlabel{bottom:10px;left:14px}.video-frame .vtime{bottom:10px;right:14px}.vl-outputs{grid-template-columns:1fr;gap:10px;margin-top:14px}.vl-output{padding:12px 14px;font-size:12px}.chat-panel{height:auto;min-height:420px;max-height:none}.chat-body{gap:10px;padding:14px}.chat-msg{max-width:95%;font-size:13px}.chat-suggest{gap:6px;padding:0 14px 10px}.chat-suggest button{padding:6px 10px;font-size:11px}.chat-input input{padding:12px 14px;font-size:13px}.chat-input button{padding:0 16px;font-size:12px}.arena-stage{gap:14px}.arena-room{gap:16px;padding:18px 16px}.arena-head{grid-template-columns:1fr 1fr;gap:12px 14px;padding-bottom:14px}.acode,.apwd,.aq-num,.atime{font-size:17px}.alabel{letter-spacing:.16em;font-size:8px}.arena-question{padding-left:14px;font-size:18px}.aopt{gap:10px;padding:12px 14px;font-size:14px}.aopt .l{width:24px;height:24px;font-size:11px}.arena-board{gap:10px;padding:16px 14px 14px}.prow{grid-template-rows:auto auto;grid-template-columns:24px 1fr auto;gap:4px 8px;padding:8px 10px}.prow .pos{font-size:13px}.prow .pname{font-size:12px}.prow .phits{text-align:right;font-size:11px}.prow .ptime{text-align:left;grid-area:2/2/3/3;margin-top:-2px;font-size:10px;display:inline-block}.prow .pbar{grid-area:3/1/4/-1;height:2px}.board-podium{gap:6px;padding-top:12px}.podium-step{padding:8px 4px}.podium-1{height:64px}.podium-2{height:50px}.podium-3{height:40px}.pmedal{font-size:18px}.podium-1 .pmedal{font-size:22px}.podium-step .pname{letter-spacing:.1em;font-size:8px}.arena-caption{margin-top:18px;font-size:13px}.teachers{gap:28px}.teachers ul li{grid-template-columns:36px 1fr;gap:12px;padding:14px 16px}.teachers ul li .num{width:30px;height:30px;font-size:11px}.teachers ul li h4{font-size:16px}.teachers ul li p{font-size:13px}.testi{padding:22px 20px}.testi .quote-mark{margin-bottom:8px;font-size:48px}.testi blockquote{margin-bottom:18px;font-size:16px}.faq-q{grid-template-columns:44px 1fr 28px;gap:12px;padding:16px 18px}.faq-q .toggle{width:28px;height:28px}.faq-item.open .faq-a{padding:0 18px 18px}.faq-a{grid-template-columns:44px 1fr 28px;gap:12px}.faq-a>div:nth-child(2){font-size:14px}.footer-top{gap:24px;padding-bottom:32px}.footer-top h2{font-size:28px}.footer-top p{font-size:14px}.footer-cols{gap:24px;padding:32px 0}.footer-cols .brand{grid-column:1/-1}.footer-base{letter-spacing:.1em;flex-direction:column;align-items:flex-start;gap:10px;font-size:10px}.footer-base .dl-mark img{height:36px}.logo img{height:70px;margin-top:-14px;margin-bottom:-14px}.logo .wordmark{font-size:22px}.footer-cols .brand img,.footer-cols .brand .footer-logo{height:72px}}@media(max-width:480px){.container{padding:0 16px}.logo img{height:60px;margin-top:-12px;margin-bottom:-12px}.logo .wordmark{font-size:19px}.arena-head{grid-template-columns:1fr 1fr}.acode,.apwd,.aq-num,.atime{font-size:15px}.stat-strip .num{font-size:28px}.footer-cols{grid-template-columns:1fr}.footer-cols .brand{grid-column:auto}.editors-mark{padding:28px 18px}.editors-mark blockquote{font-size:19px}.feature h3{font-size:20px}.step{padding:20px 18px}}@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transition:none;transform:none}.pdf-scanner,.pdf-line.scanning:after,.atime,.alive-dot,.demo-card .demo-head .dot{animation:none}.marquee-track{animation:none!important}}.marquee{--marquee-duration:56s;width:100%;margin:0 0 36px;padding:28px 0 32px;position:relative;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,#0000 0,#000 8% 92%,#0000 100%);mask-image:linear-gradient(90deg,#0000 0,#000 8%,#000 92%,#0000)}.marquee-track{width:max-content;animation:marquee-scroll var(--marquee-duration) linear infinite;will-change:transform;gap:22px;display:flex}.marquee:hover .marquee-track{animation-play-state:paused}@keyframes marquee-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}.marquee-tile{text-align:center;background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius);flex-direction:column;flex:none;justify-content:center;align-items:center;gap:6px;width:220px;height:110px;padding:16px 18px;transition:transform .25s,border-color .25s,box-shadow .25s;display:flex;position:relative;overflow:hidden}.marquee-tile:before{content:"";background:linear-gradient(135deg,var(--ic-soft,transparent),transparent 70%);opacity:.55;pointer-events:none;position:absolute;top:0;right:0;bottom:0;left:0}.marquee-tile:after{content:"";background:linear-gradient(90deg,transparent,var(--ic-color,var(--accent)),transparent);opacity:.35;height:1px;position:absolute;bottom:10px;left:16px;right:16px}.marquee-tile:hover{border-color:var(--ic-color,var(--accent));box-shadow:var(--shadow-md);transform:translateY(-2px)}.marquee-tile[data-kind=uni]{--ic-color:var(--feat-sim);--ic-soft:var(--feat-sim-soft)}.marquee-tile[data-kind=school]{--ic-color:var(--feat-map);--ic-soft:var(--feat-map-soft)}.marquee-tile[data-kind=concurso]{--ic-color:var(--feat-arena);--ic-soft:var(--feat-arena-soft)}[data-theme=midnight] .marquee-tile:before{opacity:.18}.marquee-tile .mt-mark{background:var(--ic-soft);width:42px;height:42px;color:var(--ic-color,var(--accent));z-index:1;border-radius:12px;justify-content:center;align-items:center;display:inline-flex;position:relative}[data-theme=midnight] .marquee-tile .mt-mark{background:#ffffff0a}.marquee-tile strong{color:var(--ink);letter-spacing:-.005em;z-index:1;font-family:IBM Plex Sans,sans-serif;font-size:13px;font-weight:600;line-height:1.25;position:relative}.marquee-tile .mt-soon{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);z-index:1;font-family:IBM Plex Mono,monospace;font-size:9.5px;position:relative}.marquee-fade{display:none}@media(max-width:720px){.marquee{--marquee-duration:38s;margin-bottom:28px;padding:18px 0 22px}.marquee-track{gap:14px}.marquee-tile{width:170px;height:96px;padding:12px 14px}.marquee-tile strong{font-size:12px}}.legal-page{min-height:calc(100vh - 200px);padding:64px 0 80px}.legal-crumbs{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);align-items:center;gap:8px;margin-bottom:22px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.legal-crumbs a{color:var(--muted);text-decoration:none}.legal-crumbs a:hover{color:var(--accent-deep)}.legal-header{text-align:left;max-width:760px;margin:0 auto 36px}.legal-badge{border:1px solid var(--hairline);background:var(--paper-deep);letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);border-radius:999px;align-items:center;gap:10px;margin-bottom:18px;padding:7px 14px;font-family:IBM Plex Mono,monospace;font-size:10.5px;display:inline-flex}.legal-title{letter-spacing:-.02em;color:var(--ink);text-wrap:balance;margin:0 0 12px;font-family:"Source Serif 4",serif;font-size:clamp(32px,4.5vw,52px);font-weight:500;line-height:1.05}.legal-updated{letter-spacing:.12em;color:var(--muted);margin:0 0 18px;font-family:IBM Plex Mono,monospace;font-size:12px}.legal-intro{color:var(--ink-soft);max-width:64ch;margin:0;font-size:17px;line-height:1.6}.legal-card{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);max-width:820px;box-shadow:var(--shadow-sm);margin:0 auto;padding:40px clamp(24px,4vw,56px)}.legal-section{margin-bottom:36px}.legal-section:last-child{margin-bottom:0}.legal-section h2{letter-spacing:-.01em;color:var(--accent-deep);border-bottom:1px solid var(--hairline);margin:0 0 14px;padding-bottom:10px;font-family:"Source Serif 4",serif;font-size:22px;font-weight:600}.legal-section p,.legal-section li{color:var(--ink-soft);margin:0 0 12px;font-family:IBM Plex Sans,sans-serif;font-size:15px;line-height:1.65}.legal-section ul{margin:0 0 14px;padding-left:22px}.legal-section ul li{margin-bottom:8px}.legal-section a{color:var(--accent-deep);text-underline-offset:3px;text-decoration:underline}.legal-section a:hover{color:var(--accent)}.legal-section strong{color:var(--ink);font-weight:600}.legal-callout{background:var(--feat-arena-soft);border:1px solid var(--feat-arena);border-radius:12px;margin:14px 0 6px;padding:14px 18px}@supports (color:color-mix(in lab,red,red)){.legal-callout{border:1px solid color-mix(in srgb,var(--feat-arena) 30%,transparent)}}.legal-callout{color:var(--ink);font-size:14.5px;line-height:1.55}[data-theme=midnight] .legal-callout{color:var(--ink);background:#f973161f;border-color:#f973165c}.legal-footer-links{flex-wrap:wrap;justify-content:space-between;gap:12px;max-width:820px;margin:36px auto 0;display:flex}@media(max-width:720px){.legal-page{padding:36px 0 48px}.legal-card{border-radius:var(--radius);padding:28px 22px}.legal-section h2{font-size:19px}.legal-section p,.legal-section li{font-size:14.5px}}.site-footer-mini{margin-top:24px;padding:36px 0 28px}.site-footer-mini .footer-mini-grid{border-bottom:1px solid #e2e8f01f;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;padding-bottom:20px;display:flex}.site-footer-mini .footer-mini-back{color:#e2e8f0;letter-spacing:.16em;text-transform:uppercase;font-family:IBM Plex Mono,monospace;font-size:11px;text-decoration:none}.site-footer-mini .footer-mini-back:hover{color:#a5b4fc}.site-footer-mini .footer-mini-nav{flex-wrap:wrap;gap:18px;display:flex}.site-footer-mini .footer-mini-nav a{color:#e2e8f0;font-family:IBM Plex Sans,sans-serif;font-size:13px;text-decoration:none;transition:color .18s}.site-footer-mini .footer-mini-nav a:hover{color:#a5b4fc}.site-footer-mini .footer-base{border-top:0;padding-top:0}.blog-hero{padding:64px 0 32px}.blog-crumbs{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.blog-crumbs a{color:var(--muted);text-decoration:none}.blog-crumbs a:hover{color:var(--accent-deep)}.blog-eyebrow{border:1px solid var(--hairline);background:var(--paper-deep);letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);border-radius:999px;align-items:center;gap:10px;margin-bottom:20px;padding:7px 14px;font-family:IBM Plex Mono,monospace;font-size:10.5px;display:inline-flex}.blog-eyebrow .dot{background:var(--accent);border-radius:50%;width:8px;height:8px;box-shadow:0 0 0 4px #6366f12e}.blog-title{letter-spacing:-.02em;color:var(--ink);text-wrap:balance;max-width:24ch;margin:0 0 16px;font-family:"Source Serif 4",serif;font-size:clamp(34px,5vw,58px);font-weight:500;line-height:1.05}.blog-title em{color:var(--accent-deep);font-style:italic}.blog-subtitle{max-width:64ch;color:var(--ink-soft);margin:0 0 28px;font-size:17px;line-height:1.6}.blog-search{max-width:560px;margin:0 0 22px}.blog-cats{flex-wrap:wrap;gap:10px;margin-bottom:32px;display:flex}.blog-cats button{background:var(--paper-deep);border:1px solid var(--hairline);color:var(--ink-soft);cursor:pointer;border-radius:999px;padding:8px 14px;font-family:IBM Plex Sans,sans-serif;font-size:13px;font-weight:500;transition:all .18s}.blog-cats button:hover{color:var(--accent-deep);border-color:var(--accent)}.blog-cats button.active{background:linear-gradient(135deg,var(--accent),var(--accent-deep));color:#fff;border-color:#0000}.blog-grid-section{padding-top:0}.blog-grid{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}@media(max-width:1000px){.blog-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.blog-grid{grid-template-columns:1fr}}.blog-card{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius);flex-direction:column;gap:12px;padding:24px 22px;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex}.blog-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-3px)}.blog-cat{letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);background:var(--accent-soft);border-radius:6px;align-self:flex-start;padding:4px 10px;font-family:IBM Plex Mono,monospace;font-size:10px;font-weight:600;display:inline-block}.blog-card h2{letter-spacing:-.01em;margin:4px 0 0;font-family:"Source Serif 4",serif;font-size:21px;font-weight:500;line-height:1.2}.blog-card h2 a{color:var(--ink);text-decoration:none;transition:color .18s}.blog-card h2 a:hover{color:var(--accent-deep)}.blog-card p{color:var(--ink-soft);-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;margin:0;font-size:14px;line-height:1.55;display:-webkit-box;overflow:hidden}.blog-card .blog-meta{letter-spacing:.1em;color:var(--muted);flex-wrap:wrap;gap:8px;font-family:IBM Plex Mono,monospace;font-size:10.5px;display:flex}.blog-read{color:var(--accent-deep);align-self:flex-start;margin-top:auto;padding-top:6px;font-family:IBM Plex Sans,sans-serif;font-size:13px;font-weight:600;text-decoration:none}.blog-read:hover{color:var(--accent)}.blog-post{padding:56px 0 72px}.blog-post-head{max-width:760px;margin:0 auto 32px}.blog-post-head h1{letter-spacing:-.02em;color:var(--ink);text-wrap:balance;margin:12px 0 14px;font-family:"Source Serif 4",serif;font-size:clamp(30px,4.5vw,48px);font-weight:500;line-height:1.1}.blog-post-excerpt{color:var(--ink-soft);margin:0 0 16px;font-size:17px;line-height:1.6}.blog-post-head .blog-meta{letter-spacing:.1em;color:var(--muted);flex-wrap:wrap;gap:8px;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.blog-content{background:var(--paper-deep);border:1px solid var(--hairline);border-radius:var(--radius-lg);max-width:760px;box-shadow:var(--shadow-sm);margin:0 auto;padding:40px clamp(24px,4vw,56px)}.blog-content h2{letter-spacing:-.01em;color:var(--accent-deep);margin:28px 0 12px;font-family:"Source Serif 4",serif;font-size:24px;font-weight:600}.blog-content h2:first-child{margin-top:0}.blog-content h3{color:var(--ink);margin:20px 0 8px;font-family:"Source Serif 4",serif;font-size:19px;font-weight:600}.blog-content p{color:var(--ink-soft);margin:0 0 14px;font-family:IBM Plex Sans,sans-serif;font-size:16px;line-height:1.7}.blog-content ul,.blog-content ol{margin:0 0 14px;padding-left:22px}.blog-content li{color:var(--ink-soft);margin:0 0 6px;line-height:1.6}.blog-content strong{color:var(--ink);font-weight:600}.blog-content a{color:var(--accent-deep);text-underline-offset:3px;text-decoration:underline}.blog-tags{letter-spacing:.1em;text-transform:uppercase;max-width:760px;color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin:24px auto 0;font-family:IBM Plex Mono,monospace;font-size:11px;display:flex}.blog-tag{background:var(--paper-deep);border:1px solid var(--hairline);color:var(--ink-soft);border-radius:6px;padding:4px 10px}.blog-post-foot{flex-wrap:wrap;justify-content:space-between;gap:14px;max-width:760px;margin:32px auto 0;display:flex}@media(max-width:720px){.blog-hero{padding:36px 0 24px}.blog-post{padding:36px 0 48px}.blog-content{padding:28px 22px}.blog-content h2{font-size:21px}.blog-content p{font-size:15px}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}
