*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,svg{max-width:100%;display:block}:root{--void: #0b0a0c;--elev: #141216;--inset: #1c1a1f;--gold: #d4af5f;--gold-light: #e8c98a;--gold-deep: #9c7b3a;--gold-hair: rgba(212, 175, 95, .38);--gold-hair-soft: rgba(212, 175, 95, .18);--gold-mist: rgba(212, 175, 95, .1);--gold-glow: rgba(212, 175, 95, .28);--ink: #f3eee4;--ink-strong: #f3eee4;--ink-mid: rgba(243, 238, 228, .68);--ink-low: rgba(243, 238, 228, .55);--ink-faint: rgba(243, 238, 228, .22);--hair: rgba(243, 238, 228, .08);--hair-strong: rgba(243, 238, 228, .14);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--font-display: "Cormorant Garamond", "New York", Georgia, serif;--shadow-card: 0 8px 32px rgba(0, 0, 0, .45)}body{font-family:var(--font-sans);color:var(--ink);background:radial-gradient(1100px 700px at 18% -10%,rgba(212,175,95,.1),transparent 60%),radial-gradient(800px 600px at 92% 8%,rgba(232,201,138,.06),transparent 65%),radial-gradient(900px 700px at 50% 110%,rgba(156,123,58,.08),transparent 65%),var(--void);background-attachment:fixed;line-height:1.65;letter-spacing:-.005em;min-height:100vh}::selection{background:#d4af5f52;color:var(--ink)}a{color:inherit;text-decoration:none}.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-display);font-size:1.25rem}.brand-word b{color:var(--gold);font-weight:700}.brand-word span{color:var(--ink);font-weight:500}.learn{max-width:880px;margin:0 auto;padding:clamp(40px,7vw,88px) clamp(20px,5vw,40px) 40px}[id]{scroll-margin-top:88px}.content-rail,.content-after{margin-top:40px}@media(min-width:1080px){.learn--rail{max-width:1180px;display:grid;grid-template-columns:minmax(0,780px) 300px;grid-template-rows:auto 1fr;column-gap:48px;justify-content:center;align-items:start}.content-main{grid-column:1;grid-row:1;min-width:0}.content-after{grid-column:1;grid-row:2;min-width:0;margin-top:0}.content-rail{grid-column:2;grid-row:1 / 3;margin-top:0}.content-rail.is-sticky{position:sticky;top:var(--rail-top, 88px)}.learn--lead{grid-template-rows:auto auto 1fr}.learn--lead .content-lead{grid-column:1 / -1;grid-row:1;min-width:0}.learn--lead .content-main{grid-row:2}.learn--lead .content-after{grid-row:3}.learn--lead .content-rail{grid-row:2 / 4}}.eyebrow{display:inline-block;font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;color:var(--gold);margin-bottom:18px;padding-bottom:10px;border-bottom:1px solid var(--gold-hair-soft)}.learn h1{font-family:var(--font-display);font-weight:600;font-size:clamp(2.25rem,5vw,3rem);color:var(--ink-strong);line-height:1.1;letter-spacing:-.015em;margin-bottom:.75rem}.learn h1 em{font-style:italic;color:var(--gold-light);font-weight:500}.learn .lead{font-size:clamp(1rem,2.4vw,1.125rem);color:var(--ink-mid);max-width:60ch;margin-bottom:2rem}.learn h2{font-family:var(--font-display);font-weight:600;font-size:clamp(1.35rem,3vw,1.75rem);color:var(--gold-light);margin-top:2.75rem;margin-bottom:.85rem;letter-spacing:-.005em}.learn h3{font-weight:600;font-size:1.0625rem;color:var(--ink-strong);margin-top:1.75rem;margin-bottom:.5rem;letter-spacing:-.005em}.learn h4{font-weight:600;font-size:.875rem;color:var(--gold);margin-top:1.25rem;margin-bottom:.375rem;text-transform:uppercase;letter-spacing:.08em}.learn p{color:var(--ink-mid);margin-bottom:1rem;font-size:1rem}.learn strong{color:var(--ink-strong);font-weight:600}.learn em{color:var(--ink)}.learn p a,.learn li a{color:var(--gold);border-bottom:1px dashed var(--gold-hair);transition:color .15s,border-color .15s}.learn p a:hover,.learn li a:hover{color:var(--gold-light);border-color:var(--gold-light)}.learn ul,.learn ol{margin-left:1.5rem;margin-bottom:1rem;color:var(--ink-mid)}.learn li{margin-bottom:.5rem;font-size:1rem;padding-left:.25rem}.learn ul li::marker,.learn ol li::marker{color:var(--gold)}.learn hr{border:none;height:1px;background:linear-gradient(to right,transparent,var(--gold-hair-soft),transparent);margin:2.5rem 0}.learn table{width:100%;border-collapse:collapse;margin:1rem 0 1.5rem;font-size:.9rem;background:var(--elev);border:1px solid var(--hair);border-radius:12px;overflow:hidden}.learn th,.learn td{padding:.7rem .95rem;text-align:left;border-bottom:1px solid var(--hair);vertical-align:top}.learn th{background:var(--inset);color:var(--gold-light);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--hair-strong)}.learn td{color:var(--ink-mid)}.learn tr:last-child td{border-bottom:none}.learn code{background:var(--inset);border:1px solid var(--hair);padding:.125rem .375rem;border-radius:4px;font-size:.88em;color:var(--gold-light);font-family:SF Mono,Consolas,Monaco,monospace}.learn blockquote{border-left:2px solid var(--gold-hair);padding-left:1rem;margin:1rem 0;color:var(--ink-low);font-style:italic}.toc-section{margin-top:2.5rem}.content-main .toc-section:first-of-type,.learn>.toc-section:first-of-type{margin-top:1.5rem}.toc-section h2{font-family:var(--font-sans);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;color:var(--gold);margin-bottom:1rem;margin-top:0}.toc-grid{display:grid;grid-template-columns:1fr;gap:12px}@media(min-width:640px){.toc-grid{grid-template-columns:1fr 1fr}}.toc-card{display:flex;align-items:center;gap:14px;padding:16px 18px;background:linear-gradient(180deg,#141216b8,#1412166b);border:1px solid var(--hair);border-radius:14px;transition:border-color .18s,transform .18s,box-shadow .18s,background .18s}.toc-card:hover{border-color:var(--gold-hair);transform:translateY(-1px);box-shadow:0 10px 28px #0006,0 0 0 1px var(--gold-hair-soft) inset;background:linear-gradient(180deg,#1c1820d1,#14121680)}.toc-glyph{flex:0 0 44px;width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;color:var(--gold-light);background:radial-gradient(circle at 30% 30%,rgba(232,201,138,.18),transparent 65%),var(--inset);border:1px solid var(--gold-hair-soft)}.toc-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}.toc-label{color:var(--ink-strong);font-weight:600;font-size:.98rem}.toc-sub{color:var(--ink-low);font-size:.84rem;margin-top:2px}.learn .lg-group__intro{color:var(--ink-low);font-size:.92rem;margin:-.5rem 0 1rem}.toc-card--featured{grid-column:1 / -1;border-color:var(--gold-hair);background:radial-gradient(600px 200px at 85% -30%,rgba(212,175,95,.14),transparent 65%),linear-gradient(180deg,#18151bd9,#14121699)}.toc-card--featured .toc-label{font-family:var(--font-display);font-size:1.35rem;font-weight:600}.learn .lg-rows{list-style:none;margin:0;padding:0}.learn .lg-rows li{margin:0;padding:0}.learn .lg-row{display:grid;grid-template-columns:28px 1fr;column-gap:12px;align-items:center;padding:10px 4px;border-bottom:1px solid var(--hair);color:var(--ink)}.learn .lg-row:hover{border-bottom-color:var(--hair)}.learn .lg-row:hover .lg-row__label{color:var(--gold-light)}.lg-row__glyph{color:var(--gold-light);display:inline-flex;grid-row:1 / 3}.lg-row__glyph svg,.lg-row__glyph img{width:22px;height:22px}.lg-row__label{font-weight:600;font-size:.98rem}.lg-row__sub{color:var(--ink-low);font-size:.84rem}.learn .lg-guides{list-style:none;margin:0;padding:0;columns:2;column-gap:24px}.learn .lg-guides li{margin:0 0 6px;padding:0;font-size:.92rem;break-inside:avoid}.learn .lg-guides li a{color:var(--ink-mid);border-bottom:none}.learn .lg-guides li a:hover{color:var(--gold-light)}@media(max-width:480px){.learn .lg-guides{columns:1}}.ref-list{display:grid;grid-template-columns:1fr;gap:14px;margin-top:1.5rem}.ref-card{padding:22px 24px;background:linear-gradient(180deg,#141216c7,#14121680);border:1px solid var(--hair);border-radius:16px;box-shadow:var(--shadow-card)}.ref-card-header{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:10px}.ref-title{font-family:var(--font-display);font-weight:600;font-size:1.5rem;color:var(--ink-strong);display:inline-flex;align-items:baseline;gap:14px;letter-spacing:-.005em}.ref-glyph{color:var(--gold-light);font-family:"Segoe UI Symbol","Apple Symbols","Symbola","STIX Two Math",var(--font-display),serif;font-variant-emoji:text;font-size:1.65rem;line-height:1}.ref-glyph svg{width:1em;height:1em;vertical-align:-.12em}.toc-glyph svg{width:1.6rem;height:1.6rem}.ref-sub{color:var(--gold);font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;font-weight:500}.ref-meta{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:.85rem;color:var(--ink-low);margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--hair)}.ref-meta b{color:var(--gold-light);font-weight:500;margin-right:6px}.ref-keywords{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.ref-kw{font-size:.74rem;color:var(--gold-light);background:var(--gold-mist);border:1px solid var(--gold-hair-soft);border-radius:999px;padding:3px 10px;letter-spacing:.02em}.ref-desc{color:var(--ink-mid);font-size:.97rem;line-height:1.6}.contents{margin-bottom:20px;padding:16px 18px;border:1px solid var(--hair);border-radius:14px;background:linear-gradient(180deg,#14121699,#14121659)}.learn .contents__heading{margin:0 0 8px;font-size:.7rem;text-transform:uppercase;letter-spacing:.16em;color:var(--gold)}.learn .contents__list{list-style:none;margin:0;padding:0;color:var(--ink-mid)}.learn .contents__list li{margin:0;padding:4px 0;font-size:.9rem}.learn .contents__list li a{color:var(--ink-mid);border-bottom:none}.learn .contents__list li a:hover{color:var(--gold-light)}.contents-rail{display:none}@media(min-width:1080px){.contents-inline{display:none}.contents-rail{display:block}}.pp{display:grid;grid-template-columns:1fr;border-top:1px solid var(--gold-hair);border-bottom:1px solid var(--hair-strong);background:linear-gradient(145deg,rgba(243,238,228,.025),transparent 65%)}.pp__section{padding:24px 16px;display:grid;grid-template-columns:minmax(0,1fr) 76px;align-items:start;gap:16px}.pp__section+.pp__section{border-top:1px solid var(--hair-strong)}.pp__identity{grid-column:1;grid-row:1;align-self:center}.pp__preview{grid-column:2;grid-row:1;margin:0;width:76px;height:110px;display:flex;justify-content:center;align-items:center}.pp__preview--paper img{max-width:100%;height:106px;width:auto;object-fit:contain;transform:rotate(4deg);box-shadow:-5px 7px 18px #0000004d}.pp__preview--screen{height:110px;overflow:hidden}.pp__preview--screen img{width:58px;height:auto;border:1px solid var(--hair-strong);border-radius:8px}.learn .pp__eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.65rem;color:var(--gold);margin:0 0 10px}.learn .pp__heading{font-family:var(--font-display);font-weight:500;font-size:1.65rem;line-height:1.08;color:var(--ink);margin:0}.learn .pp__product{color:var(--ink-mid);font-size:.75rem;line-height:1.4;margin:10px 0 0}.learn .pp__copy{grid-column:1 / -1;color:var(--ink-mid);font-size:.88rem;line-height:1.6;margin:0}.pp__action{grid-column:1 / -1;display:inline-flex;align-items:center;justify-content:space-between;min-height:44px;padding:0 14px;border:1px solid var(--gold-hair-soft);border-radius:7px;color:var(--ink);font-size:.82rem;font-weight:500}.pp__action:after{content:"";width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg);margin-left:12px}.pp__action:hover{border-color:var(--gold-hair);background:var(--gold-mist)}.pp__action:focus-visible{outline:2px solid var(--gold);outline-offset:3px}@media(min-width:560px)and (max-width:1079px){.pp{grid-template-columns:1fr 1fr}.pp__section{padding-inline:24px}.pp__section+.pp__section{border-top:none;border-left:1px solid var(--hair-strong)}}.content-skip{position:fixed;top:-100px;left:16px;z-index:200;padding:12px 20px;background:var(--ink);color:var(--void);border-radius:7px}.content-skip:focus{top:12px}.back{margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--hair);text-align:center;font-size:.875rem;color:var(--ink-low)}.back a{color:var(--gold)}.back a:hover{color:var(--gold-light)}a .arr{display:inline-block;vertical-align:-.08em}.site-footer{text-align:center;padding:28px 20px 36px;color:var(--ink-faint);font-size:.82rem;border-top:1px solid var(--hair);margin-top:40px}.site-footer a{color:var(--ink-low);margin:0 4px}.site-footer a:hover{color:var(--ink)}@media(max-width:600px){.learn table{font-size:.82rem}.learn th,.learn td{padding:.55rem .65rem}.ref-card{padding:18px}}
