:root{--surface-primary: #f5f5f7;--surface-elevated: #fff;--surface-subtle: #fbfbfd;--surface-brand: #000;--text-primary: #1d1d1f;--text-secondary: #6e6e73;--text-inverse: #f5f5f7;--text-navigation: #3a3a3c;--text-strong: #000;--text-footer: #a1a1a6;--text-success: #07594b;--text-warning: #714c08;--text-error: #8c2929;--border-default: #d2d2d7;--border-subtle: rgba(0, 0, 0, .06);--border-input: #b8b8bd;--border-success: #b8ded5;--border-warning: #edd18e;--border-error: #efc5c5;--accent-primary: #0071e3;--accent-hover: #0077ed;--accent-soft: #64a9ef;--accent-glow: rgba(0, 113, 227, .14);--accent-glow-subtle: rgba(0, 113, 227, .13);--accent-glow-light: rgba(0, 113, 227, .1);--focus-ring-soft: rgba(0, 113, 227, .2);--focus-ring: rgba(0, 113, 227, .45);--status-success: #1b7f4b;--status-warning: #8a5a00;--status-error: #b42318;--status-success-surface: #f0faf7;--status-success-strong: #dff4ee;--status-warning-surface: #fff7df;--status-warning-strong: #fff1c9;--status-error-surface: #fff4f4;--status-error-strong: #ffe2e2;--surface-neutral: #ededf0;--surface-translucent: rgba(250, 250, 252, .8);--surface-glass: rgba(255, 255, 255, .8);--radius-card: 24px;--radius-control: 14px;--shadow-brand: rgba(0, 0, 0, .18);--shadow-subtle: rgba(0, 0, 0, .045);--shadow-default: 0 16px 36px -24px var(--shadow-brand), 0 8px 18px -14px rgba(0, 0, 0, .1);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--shell: min(1120px, calc(100% - 48px) );color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,PingFang SC,Helvetica Neue,Arial,sans-serif;font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text-primary);background:var(--surface-primary);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}.shell{width:var(--shell);margin-inline:auto}.skip-link{position:fixed;z-index:300;top:-80px;left:16px;padding:10px 14px;border-radius:12px;color:var(--text-inverse);background:var(--text-primary)}.skip-link:focus{top:12px}.vue-ready .legacy-header{display:none}.site-header,.vue-site-header{position:sticky;z-index:100;top:0;border-bottom:1px solid var(--border-subtle);background:var(--surface-translucent);-webkit-backdrop-filter:saturate(180%) blur(22px);backdrop-filter:saturate(180%) blur(22px)}.nav-wrap,.main-nav,.brand{display:flex;align-items:center}.nav-wrap{min-height:64px;justify-content:space-between;gap:28px}.brand{gap:10px;color:var(--text-primary);font-size:15px;font-weight:650;letter-spacing:-.01em;text-decoration:none}.brand-mark{display:inline-flex;width:30px;height:30px;border-radius:10px;align-items:center;justify-content:center;background:var(--surface-brand);color:var(--text-inverse);font-size:14px;font-weight:700}.main-nav{gap:28px;font-size:13px}.main-nav a,.nav-button{color:var(--text-navigation);text-decoration:none}.main-nav a{position:relative;padding:9px 0}.main-nav a:hover,.main-nav a[aria-current=page],.nav-button:hover{color:var(--text-strong)}.main-nav a[aria-current=page]:after{position:absolute;right:0;bottom:3px;left:0;height:2px;border-radius:2px;background:var(--text-primary);content:""}.main-nav form{margin:0}.nav-button{padding:8px 0;border:0;background:transparent;cursor:pointer}.main-nav .nav-cta{padding:9px 17px;border-radius:999px;color:var(--text-inverse);background:var(--accent-primary)}.main-nav .nav-cta:hover{color:var(--text-inverse);background:var(--accent-hover)}.menu-toggle{display:none;width:44px;height:44px;padding:0;border:0;border-radius:50%;background:transparent}.menu-toggle span{display:block;width:18px;height:1px;margin:5px auto;background:var(--text-primary)}.hero{padding:104px 0 88px;background:radial-gradient(circle at 78% 24%,var(--accent-glow),transparent 28%),linear-gradient(180deg,var(--surface-elevated) 0%,var(--surface-primary) 100%)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(290px,.75fr);gap:76px;align-items:center}.eyebrow,.product-code,.step-label{margin:0 0 14px;color:var(--accent-primary);font-size:12px;font-weight:700;letter-spacing:.08em}h1,h2,h3{margin:0 0 16px;letter-spacing:-.035em;line-height:1.15;text-wrap:balance;word-break:auto-phrase}h1{max-width:820px;font-size:clamp(38px,5vw,64px);font-weight:650}h2{font-size:clamp(30px,3.8vw,46px);font-weight:620}h3{font-size:21px;font-weight:620}.phrase{display:inline-block;white-space:nowrap}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.hero h1{max-width:720px}p{margin:0 0 18px;text-wrap:pretty}.lead{max-width:660px;color:var(--text-secondary);font-size:19px}.actions{display:flex;margin:32px 0;flex-wrap:wrap;gap:12px}.button{display:inline-flex;min-height:46px;padding:10px 20px;border:1px solid transparent;border-radius:999px;align-items:center;justify-content:center;font-weight:600;text-decoration:none;white-space:nowrap;cursor:pointer;transition:transform .12s ease-out}.button:active:not(:disabled){transform:scale(.98)}.button.primary{color:var(--text-inverse);background:var(--accent-primary)}.button.primary:hover{background:var(--accent-hover)}.button.secondary{border-color:var(--border-default);background:var(--surface-glass)}.button.wide{width:100%}.button[aria-busy=true]{opacity:.68;cursor:wait}.trust-list{display:flex;margin:0;padding:0;flex-wrap:wrap;gap:20px;color:var(--text-secondary);font-size:14px;list-style:none}.trust-list li:before{margin-right:7px;color:var(--accent-primary);content:"✓";font-weight:800}.hero-card,.product-card,.purchase-card,.auth-card,.result-panel,.artifact-card,.detail-list,.table-wrap,.empty-state{border:1px solid var(--border-subtle);border-radius:var(--radius-card);background:var(--surface-elevated);box-shadow:0 12px 38px var(--shadow-subtle)}.hero-card{padding:32px;box-shadow:var(--shadow-default)}.hero-card ol{display:grid;margin:0;padding:0;gap:4px;list-style:none}.hero-card li{display:flex;padding:14px 0;border-bottom:1px solid var(--border-default);align-items:center;gap:14px}.hero-card li:last-child{border:0}.hero-card li span{color:var(--accent-primary);font-weight:750}.section{padding-block:96px}.section-heading{max-width:760px;margin-bottom:42px}.product-grid,.purchase-grid,.artifact-grid{display:grid;gap:22px}.product-grid,.purchase-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.product-card{display:flex;min-height:310px;padding:34px;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease}.article-card-title{font-size:clamp(24px,2.8vw,34px)}.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-default)}.article-card-footer{display:flex;margin-top:20px;align-items:center;justify-content:space-between;gap:16px}.price{margin:auto 0 12px;color:var(--text-primary);font-size:34px;font-weight:620;letter-spacing:-.035em}.price small{color:var(--text-secondary);font-size:14px;font-weight:500;letter-spacing:0}.text-link{color:var(--accent-primary);font-weight:650}.section-tint{color:var(--text-inverse);background:var(--surface-brand)}.section-tint h2{color:var(--text-inverse)}.section-tint .eyebrow{color:var(--accent-soft)}.section-tint p{color:var(--text-footer)}.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.page-head{padding:76px 0 58px;border-bottom:1px solid var(--border-default);background:linear-gradient(180deg,var(--surface-elevated) 0%,var(--surface-primary) 100%)}.page-head p:last-child{max-width:700px;color:var(--text-secondary)}.purchase-grid{align-items:start}.purchase-card{overflow:hidden}.purchase-copy,.purchase-card form{padding:32px}.purchase-copy{background:var(--surface-subtle)}.purchase-copy .price{margin:24px 0 0}.stack-form{display:grid;gap:18px}.stack-form label{display:grid;gap:7px;font-size:14px;font-weight:650}input{width:100%;min-height:48px;padding:10px 13px;border:1px solid var(--border-input);border-radius:12px;color:var(--text-primary);background:var(--surface-elevated)}input:focus{border-color:var(--accent-primary);outline:3px solid var(--focus-ring-soft)}.field-help,.fine-print{color:var(--text-secondary);font-size:13px}.field-help{margin:-7px 0 0}.fine-print{margin:16px 0 0}.auth-section{display:grid;min-height:680px;padding:64px 20px;place-items:center;background:radial-gradient(circle at 50% 0,var(--accent-glow-subtle),transparent 42%),var(--surface-primary)}.auth-card{width:min(470px,100%);padding:38px;box-shadow:var(--shadow-default)}.auth-card h1{font-size:36px}.alert{padding:14px 16px;margin:18px 0;border:1px solid var(--border-default);border-radius:14px;font-size:14px}.alert.error{border-color:var(--border-error);color:var(--text-error);background:var(--status-error-surface)}.alert.warning{border-color:var(--border-warning);color:var(--text-warning);background:var(--status-warning-surface)}.alert.neutral{color:var(--text-primary);background:var(--surface-neutral)}.alert.success{border-color:var(--border-success);color:var(--text-success);background:var(--status-success-surface)}.article-reader{padding-bottom:96px;background:var(--surface-elevated)}.article-head{padding-top:88px;padding-bottom:48px;border-bottom:1px solid var(--border-default)}.article-meta{display:flex;flex-wrap:wrap;gap:8px 24px;color:var(--text-secondary);font-size:14px}.article-body{padding-top:48px}.article-body section{margin-bottom:44px}.article-body section h2{margin-bottom:20px;font-size:28px}.article-body section p{color:var(--text-navigation);font-size:18px;line-height:1.9}.unlock-banner,.paywall-card{padding:32px;margin:48px 0;border:1px solid var(--border-default);border-radius:var(--radius-card);background:var(--surface-subtle)}.unlock-banner{display:flex;align-items:center;justify-content:space-between;gap:20px}.unlock-banner p{margin:0;color:var(--text-secondary)}.paywall-card{box-shadow:var(--shadow-default)}.paywall-card form{margin-top:24px}.article-end{padding-top:32px;border-top:1px solid var(--border-default);text-align:center}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;background:var(--surface-elevated)}@media(min-width:821px){.orders-table{table-layout:fixed}.orders-order-column{width:18%}.orders-article-column{width:21%}.orders-price-column{width:8.5%}.orders-payment-column{width:27%}.orders-status-column{width:9%}.orders-created-column{width:16.5%}.orders-table th,.orders-table td{vertical-align:middle;white-space:normal;overflow-wrap:anywhere}.orders-price,.orders-status,.orders-created{white-space:nowrap;overflow-wrap:normal}}th,td{padding:17px;border-bottom:1px solid var(--border-default);text-align:left;white-space:nowrap}th{color:var(--text-secondary);font-size:12px;letter-spacing:.07em}.status{display:inline-flex;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:650}.status.success{color:var(--text-success);background:var(--status-success-strong)}.status.pending{color:var(--text-warning);background:var(--status-warning-strong)}.status.error{color:var(--text-error);background:var(--status-error-strong)}.status.neutral{color:var(--text-secondary);background:var(--surface-neutral)}.empty-state{padding:64px 24px;text-align:center}.narrow{width:min(760px,calc(100% - 40px))}.detail-list{margin:0 0 28px;padding:10px 26px}.detail-list>div,.compact-list>div{display:grid;grid-template-columns:140px 1fr;padding:16px 0;border-bottom:1px solid var(--border-default);gap:18px}.detail-list>div:last-child,.compact-list>div:last-child{border:0}dt{color:var(--text-secondary);font-size:14px}dd{margin:0;font-weight:650}.checkout-total{display:flex;padding:22px 0;border-block:1px solid var(--border-default);align-items:baseline;justify-content:space-between}.checkout-total strong{font-size:34px;font-weight:620}.compact-list{margin:10px 0}.compact-list>div{grid-template-columns:82px 1fr}.result-panel{display:flex;padding:26px;margin-bottom:24px;gap:18px}.result-panel.success{border-color:var(--border-success);background:var(--status-success-surface)}.result-panel.error{border-color:var(--border-error);background:var(--status-error-surface)}.result-mark{display:grid;height:46px;flex:0 0 46px;border-radius:14px;place-items:center;color:var(--text-inverse);background:var(--accent-primary);font-size:22px;font-weight:700}.artifact-grid{margin-bottom:24px;grid-template-columns:repeat(2,1fr)}.artifact-card{display:flex;padding:20px;gap:14px;text-decoration:none}.artifact-card:hover{border-color:var(--accent-primary);box-shadow:0 14px 36px var(--accent-glow-light)}.artifact-card small{display:block;color:var(--text-secondary)}.artifact-icon{color:var(--accent-primary);font-size:20px}.prose{max-width:760px}.prose h2{margin-top:42px;font-size:28px}.prose li{margin-bottom:8px}.site-footer{padding:48px 0;color:var(--text-footer);background:var(--surface-brand);font-size:14px}.footer-grid{display:grid;grid-template-columns:1fr auto auto;gap:36px;align-items:start}.footer-grid p{margin:5px 0 0}.footer-grid nav{display:grid;gap:7px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}.break-all{overflow-wrap:anywhere}.nowrap{white-space:nowrap}:focus-visible{outline:3px solid var(--focus-ring);outline-offset:3px}@media(max-width:820px){:root{--shell: min( calc(100% - 32px) , 680px)}.product-grid{grid-template-columns:1fr}.nav-wrap{min-height:56px;flex-wrap:wrap}.menu-toggle{display:block}.main-nav{position:static;display:none;width:100%;padding:0 0 18px;align-items:stretch;flex-direction:column;gap:2px;background:transparent}.main-nav.open{display:flex}.main-nav a,.nav-button{padding:13px 8px;font-size:16px}.main-nav a[aria-current=page]{border-radius:10px;color:var(--text-primary);background:var(--surface-subtle);font-weight:700}.main-nav .nav-cta{margin-top:8px;text-align:center}.main-nav form{padding:0}.nav-button{width:100%;text-align:left}.hero{padding:72px 0 60px}.hero-grid,.split{grid-template-columns:1fr;gap:34px}.section{padding-block:68px}.footer-grid{grid-template-columns:1fr}table,thead,tbody,tr,th,td{display:block}thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}tr{padding:12px 16px;border-bottom:1px solid var(--border-default)}td{display:grid;grid-template-columns:76px 1fr;padding:7px 0;border:0;gap:10px;white-space:normal}td:before{color:var(--text-secondary);content:attr(data-label);font-size:12px;font-weight:600}}@media(max-width:680px){.product-grid,.purchase-grid,.artifact-grid{grid-template-columns:1fr}.product-card{min-height:270px;padding:26px}.article-head h1{font-size:34px;line-height:1.18}.checkout-card .compact-list>div{grid-template-columns:1fr;gap:5px}.article-card-footer,.unlock-banner{align-items:stretch;flex-direction:column}.auth-card{padding:28px 24px}.detail-list>div{grid-template-columns:1fr;gap:4px}.trust-list{display:grid;gap:8px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}#app{display:grid;min-height:100dvh;grid-template-rows:auto 1fr auto}main{min-width:0}button:disabled{cursor:wait;opacity:.62}.loading-card{position:relative;overflow:hidden}.loading-card:after{position:absolute;right:0;bottom:0;left:0;height:3px;background:linear-gradient(90deg,transparent,var(--brand),transparent);content:"";animation:loading-sweep 1.2s ease-in-out infinite}@keyframes loading-sweep{0%{transform:translate(-100%)}to{transform:translate(100%)}}@media(prefers-reduced-motion:reduce){.loading-card:after{animation:none}}