:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#16171a;background:#f4f5f7}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}.shell{max-width:1320px;margin:auto;padding:20px}.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.top strong{font-size:20px}.brand{display:flex;align-items:center}.card{background:#fff;border:1px solid #e4e6ec;border-radius:14px}.auth{max-width:440px;margin:10vh auto;padding:24px}.auth h1{margin-top:0}.auth label{display:block;margin:14px 0;font-size:12px;font-weight:700;color:#3d424b}input{width:100%;height:42px;margin-top:6px;border:1px solid #d9dce4;border-radius:9px;padding:0 11px;font:inherit}.primary,.secondary,.ghost{min-height:38px;border-radius:9px;font:inherit;font-weight:700;cursor:pointer}.primary{width:100%;border:0;background:#5b5cf0;color:#fff}.secondary{border:1px solid #d9dce4;background:#fff;color:#3d424b;padding:0 12px}.ghost{border:0;background:transparent;color:#5b5cf0;padding:0 8px}.muted{color:#81858e;font-size:12px}.layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:14px}.sidebar{padding:14px;align-self:start;position:sticky;top:14px}.viewer{padding:24px;min-height:70vh}.section-head,.guide-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-head h2{font-size:15px;margin:0}.guide-list{display:flex;flex-direction:column;gap:6px;margin-top:10px}.guide-item{width:100%;border:1px solid #eceef2;background:#fafbfc;border-radius:9px;padding:10px;text-align:left;cursor:pointer}.guide-item strong{display:block;font-size:13px}.guide-item span{display:block;margin-top:3px;color:#81858e;font-size:10px}.guide-item.active{border-color:#bfc1f0;background:#f3f4ff}.guide-head h1{font-size:28px;margin:0 0 4px}.actions{display:flex;gap:8px}.step{margin:34px 0 46px}.step h2{font-size:20px;margin:0 0 10px}.step p{color:#4d5158;font-size:17px;line-height:1.62}.step img{display:block;max-width:100%;height:auto;margin:16px auto 0;border:1px solid #ddd;border-radius:9px;box-shadow:0 8px 24px rgba(0,0,0,.08)}.text-callout{padding:18px 20px;border-left:5px solid var(--accent,#5b5cf0);border-radius:9px;background:#f1f2ff}.share-panel{margin-top:14px;padding:12px;border:1px solid #e4e6ec;border-radius:10px;background:#fafbfc}.share-row{display:flex;gap:8px;margin-top:8px}.share-row input{margin:0}.share-list{margin-top:10px;display:flex;flex-direction:column;gap:6px}.share-link{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}.share-link code{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px}.empty{display:grid;place-items:center;min-height:50vh;color:#81858e}.toast{position:fixed;right:20px;bottom:20px;background:#16171a;color:#fff;padding:10px 14px;border-radius:9px;font-size:12px}@media(max-width:800px){.layout{grid-template-columns:1fr}.sidebar{position:static}.viewer{padding:16px}.guide-head{align-items:flex-start;flex-direction:column}}
.full-btn{width:100%;margin-top:10px}.auth .secondary{width:100%}
.top-actions{display:flex;align-items:center;gap:6px}.account-menu{position:relative}.icon-btn{width:38px;height:38px;border:1px solid #e4e6ec;border-radius:10px;background:#fff;color:#4a4bd6;font-size:18px;cursor:pointer}.account-dropdown{position:absolute;right:0;top:44px;z-index:30;width:150px;padding:6px;background:#fff;border:1px solid #e4e6ec;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.12)}.menu-item{display:block;width:100%;border:0;background:transparent;text-align:left;padding:9px 10px;border-radius:7px;font:inherit;font-weight:700;cursor:pointer;color:#3d424b}.menu-item:hover{background:#f4f5f7}.menu-item.danger{color:#c53340}.settings-page{max-width:1180px;margin:0 auto}.settings-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:14px}.settings-head h1{margin:0 0 4px;font-size:28px}.settings-columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:14px;align-items:start}.settings-stack{display:flex;flex-direction:column;gap:14px}.settings-card{padding:18px}.settings-card h2{margin:0 0 8px;font-size:16px}.settings-card .section-head{align-items:flex-start}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}.form-grid.one{grid-template-columns:1fr}.form-grid label{font-size:12px;font-weight:700;color:#3d424b}.form-grid select{width:100%;height:42px;margin-top:6px;border:1px solid #d9dce4;border-radius:9px;padding:0 10px;background:#fff;font:inherit}.narrow{width:auto;padding:0 14px;margin-top:12px}.inline-form{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px;align-items:center;margin-top:10px}.inline-form input{margin:0}.danger{color:#c53340}.item-list{display:flex;flex-direction:column;gap:8px;margin-top:10px}.item-card{border:1px solid #eceef2;border-radius:10px;background:#fafbfc;padding:12px}.item-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.item-card-head strong{display:block}.item-card-head .muted{margin-top:2px}.item-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}.user-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:10px}.user-grid label{font-size:11px;font-weight:700;color:#3d424b}.user-grid select,.user-grid input{width:100%;height:38px;margin-top:5px;border:1px solid #d9dce4;border-radius:8px;padding:0 9px;background:#fff;font:inherit}.badge{display:inline-flex;align-items:center;min-height:24px;padding:0 8px;border-radius:999px;background:#eef0ff;color:#4a4bd6;font-size:10px;font-weight:800;white-space:nowrap}.empty-small{padding:12px 0;color:#81858e;font-size:12px}.settings-card .primary.narrow{min-width:150px}
@media(max-width:900px){.settings-columns{grid-template-columns:1fr}.user-grid{grid-template-columns:1fr}.inline-form{grid-template-columns:1fr}.inline-form .secondary,.inline-form .ghost{width:100%}.top-actions{gap:0}.top-actions .ghost{padding:0 6px}}

.download-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:0 14px;margin-top:10px}.app-footer{text-align:center;color:#9aa0a8;font-size:11px;padding:18px 0 4px}.login-hint{margin:8px 0 0}.key-mask{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.08em;color:#60656d;font-size:11px;margin-top:6px}.app-info strong{color:#3d424b}

/* v0.15.2 Claude Design integration + state fixes */
.brand{text-decoration:none;color:#16171a;gap:10px}.brand img{width:30px;height:30px;border-radius:8px;display:block}.website-back{font-size:14px;font-weight:600;color:#3d424b;text-decoration:none}.website-back:hover{color:#16171a}.login-stage{min-height:calc(100vh - 120px);display:grid;place-items:center;padding:32px 20px 64px}.login-stack{width:100%;max-width:400px;display:flex;flex-direction:column;gap:20px}.auth{max-width:none;margin:0;padding:clamp(24px,5vw,36px);border-radius:18px;box-shadow:0 1px 2px rgba(20,22,30,.04),0 12px 32px rgba(20,22,30,.06)}.auth h1{margin:0;font-size:26px;letter-spacing:-.02em;font-weight:720}.auth-intro{margin:8px 0 0;font-size:15px;line-height:1.5;color:#3d424b}.auth label{display:flex;flex-direction:column;gap:6px;margin:0 0 16px;font-size:13px;font-weight:650;color:#3d424b}.auth input{height:44px;margin:0;padding:0 12px;border:1px solid #e4e6ec;border-radius:10px;background:#fafbfc;font-size:15px}.auth input:focus{outline:none;border-color:#5b5cf0;background:#fff;box-shadow:0 0 0 3px #eef0ff}.passkey-btn{width:100%;height:46px;margin-top:26px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:15px;font-weight:650}.passkey-dot{width:9px;height:9px;border-radius:50%;background:#5b5cf0}.auth-divider{display:flex;align-items:center;gap:12px;margin:22px 0;font-size:12px;font-weight:650;color:#81858e;text-transform:uppercase;letter-spacing:.06em}.auth-divider span{flex:1;height:1px;background:#eceef2}.auth-divider em{font-style:normal}.login-submit{height:46px;font-size:15px}.login-status{margin:16px 0 0;color:#2b2c7a;font-size:14px}.login-status:not(:empty){padding:10px 12px;border-radius:10px;background:#eef0ff}.account-note{margin:0;text-align:center;font-size:14px;line-height:1.5;color:#676b74}.account-note a,.login-legal a{color:#4243c9}.login-legal{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;font-size:12px}.login-legal a{text-decoration:none}.top-actions{margin-left:auto}@media(max-width:620px){.shell{padding:14px}.top{gap:12px}.website-back{font-size:13px}.login-stage{padding:28px 6px 48px}}

.brand-wordmark{font-size:20px;letter-spacing:-.02em;font-weight:720;line-height:1}.brand-wordmark .brand-guide{color:#5b5cf0}

/* v0.15.4 sharing, collections and branding */
.sidebar-divider{height:1px;background:#eceef2;margin:16px 0}.collection-item span{color:#676b74}.share-note{margin:5px 0 0}.share-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.share-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px}.share-url{display:block;margin-top:10px;padding:10px 12px;border:1px solid #e4e6ec;border-radius:9px;background:#fff;overflow:auto;white-space:nowrap;font-size:11px}.branding-box{margin-top:14px;padding-top:14px;border-top:1px solid #e4e6ec}.branding-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 12px;margin-top:10px}.branding-grid label,.collection-builder>label{font-size:12px;font-weight:700;color:#3d424b}.branding-grid input,.branding-grid select,.collection-builder input,.collection-builder select{width:100%;height:42px;margin-top:6px;border:1px solid #d9dce4;border-radius:9px;padding:0 11px;font:inherit;background:#fff}.branding-grid input[type="color"]{padding:4px;max-width:82px}.branding-grid input[type="file"]{height:auto;padding:8px}.branding-grid .wide{grid-column:1/-1}.collection-builder{margin-top:22px;max-width:760px}.collection-builder fieldset{border:1px solid #e4e6ec;border-radius:10px;margin:14px 0;padding:12px}.collection-builder legend{font-size:12px;font-weight:700;color:#3d424b;padding:0 6px}.collection-checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.collection-check{display:flex;align-items:flex-start;gap:9px;padding:10px;border:1px solid #eceef2;border-radius:9px;background:#fafbfc;cursor:pointer}.collection-check input{width:auto;height:auto;margin:3px 0 0}.collection-check strong,.collection-check small{display:block}.collection-check small{margin-top:2px;color:#81858e;font-size:10px}.collection-detail{margin-top:18px}.collection-guide-summary{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px}.collection-guide-summary span{padding:6px 9px;border-radius:999px;background:#f1f2ff;color:#3e40a8;font-size:12px;font-weight:650}@media(max-width:800px){.branding-grid,.collection-checks{grid-template-columns:1fr}.branding-grid .wide{grid-column:auto}.share-panel-head{align-items:flex-start;flex-direction:column}}

/* v0.15.7 collection folders and introductions */
.guide-list-toggle{margin-top:5px;font-size:11px;padding:0 2px;min-height:26px}.collection-folder{border:1px solid #eceef2;border-radius:10px;background:#fff;overflow:hidden}.collection-folder-header{display:grid;grid-template-columns:minmax(0,1fr) 36px;align-items:center}.collection-folder-header .guide-item{border:0;border-radius:0;background:transparent}.folder-toggle{width:32px;height:32px;font-size:20px}.collection-children{border-top:1px solid #eceef2;padding:5px 8px 10px 15px;background:#fafbff}.collection-child{font-size:12px;margin-top:5px;padding:9px;overflow-wrap:anywhere}.collection-builder textarea{display:block;width:100%;min-height:108px;max-width:100%;margin-top:6px;border:1px solid #d9dce4;border-radius:9px;padding:12px;font:inherit}.collection-intro-admin{margin:0 0 14px;color:#4d5158;white-space:pre-wrap;line-height:1.6}.step img{cursor:zoom-in}.image-lightbox[hidden]{display:none}.image-lightbox{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:56px 20px 22px;background:rgba(9,12,22,.92)}.image-lightbox img{max-width:100%;max-height:100%;object-fit:contain;cursor:zoom-out}.lightbox-close{position:absolute;right:14px;top:10px;width:42px;height:42px;border:0;border-radius:9px;background:#fff;color:#15171c;font-size:30px;cursor:pointer}

/* v0.15.8 guide management, collection ordering, airy reader */
.group-pill{display:inline-flex!important;width:max-content;max-width:100%;border-radius:30px;padding:3px 8px!important;background:#eef0ff;color:#4d4ed7!important;font-size:11px!important;font-weight:650}.guide-manage-actions{display:flex;gap:7px;flex-wrap:wrap}.guide-manage-actions button{font-size:12px;padding:8px 10px}.collection-manage-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(125px,175px) 72px;gap:6px;align-items:center;margin-bottom:7px}.collection-manage-row .section-name{font-size:12px;min-width:0}.reorder-actions{display:flex;gap:3px}.reorder-actions button{padding:6px 9px}.collection-checks{display:block}.viewer .step:not(.text-callout){padding:12px 0 36px;border-bottom:1px solid #edf0f4;margin-bottom:30px}.viewer .step h2{font-size:22px;line-height:1.35;margin:0 0 17px;letter-spacing:-.015em}.viewer .step p{font-size:17px;line-height:1.8;color:#49515d}.viewer .step img{display:block;width:auto;max-width:100%;border-radius:13px;margin:24px auto 0;box-shadow:0 12px 36px #171c2930}.viewer #steps{font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif}@media(max-width:760px){.collection-manage-row{grid-template-columns:1fr 1fr}.collection-manage-row .collection-check{grid-column:1/-1}.guide-manage-actions{width:100%}}

/* v0.15.9: public-like collection overview, stacked cards, visible TOC status */
.toc-control{display:inline-flex;gap:6px;align-items:center;border-radius:9px;white-space:nowrap}.toc-control strong{font-weight:800}.toc-control.toc-on{border-color:#b9c5f1;background:#eef0ff;color:#4146bb}.toc-control.toc-off{background:#f4f5f7;border-color:#d5d9e1;color:#666d7b}.toc-control:disabled{opacity:.65;cursor:wait}.collection-share-tools{padding:2px 0 20px}.collection-share-tools .share-url{max-width:100%}.collection-open-public{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;min-height:38px;border-radius:9px;font-weight:700}.collection-preview-label{font-size:12px;font-weight:750;letter-spacing:.07em;text-transform:uppercase;color:#6d7380;margin:8px 0 12px}.collection-preview{padding:clamp(18px,3vw,36px);background:#fff;border:1px solid #e2e5ee;border-radius:14px}.collection-preview .collection-title{font-size:clamp(24px,3vw,32px);line-height:1.2;letter-spacing:-.02em;margin:0 0 16px}.collection-preview .collection-intro{margin:0 0 26px;white-space:pre-wrap;font-size:16px;color:#545b67;line-height:1.7}.collection-preview .collection-library{max-width:none;padding:0}.collection-preview .collection-library>h3{font-size:16px;margin:0 0 14px}.collection-preview .collection-grid{display:flex;flex-direction:column;gap:12px}.collection-preview .collection-group{display:flex;flex-direction:column;gap:12px;margin:0 0 24px}.collection-preview .collection-section-heading{font-size:20px;letter-spacing:-.01em;margin:8px 0 0}.collection-preview .collection-card{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:4px 24px;width:100%;min-height:0;border:1px solid #e2e5ef;border-radius:12px;background:#fff;text-decoration:none;color:#1c1d20;padding:20px 24px;transition:border-color .15s,box-shadow .15s}.collection-preview .collection-card:hover{border-color:var(--share-accent,#5b5cf0);box-shadow:0 8px 24px #1b213318}.collection-preview .collection-card-title{grid-column:1;font-size:18px;line-height:1.35;font-weight:700;overflow-wrap:anywhere}.collection-preview .collection-card-meta{grid-column:1;color:#81858e;font-size:13px}.collection-preview .collection-card-arrow{grid-column:2;grid-row:1/3;color:var(--share-accent,#5b5cf0);font-size:14px;font-weight:700;white-space:nowrap}.collection-preview .collection-search{margin:0 0 26px}.collection-preview .collection-search label{display:block;font-size:13px;font-weight:650;color:#3d424b;margin:0 0 7px}.collection-preview .collection-search input{height:46px;border:1px solid #d9dce4;border-radius:11px;padding:0 14px;font:inherit;font-size:16px;max-width:100%;width:100%}.collection-preview .collection-search-status{margin:7px 0 0;color:#676b74;font-size:13px}.collection-preview .collection-no-results{padding:20px;border:1px dashed #d9dce4;border-radius:11px;color:#676b74}.collection-preview [hidden]{display:none!important}@media(max-width:760px){.guide-head .actions{flex-wrap:wrap}.collection-preview .collection-card{grid-template-columns:1fr;gap:8px;padding:17px}.collection-preview .collection-card-arrow{grid-column:1;grid-row:auto}.collection-preview{padding:18px}}

/* v0.15.10: guide actions above heading and whitespace instead of step separators */
.guide-head-stack{display:flex;flex-direction:column;align-items:stretch;gap:20px}
.guide-head-stack>.actions{width:100%;justify-content:flex-end;align-items:center;gap:8px;flex-wrap:wrap}
.guide-head-stack .guide-heading{min-width:0;width:100%}
.guide-head-stack .guide-heading h1{max-width:100%;overflow-wrap:anywhere;line-height:1.22;margin:0 0 5px}
.guide-head-stack #guideManageActions{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.guide-head-stack #guideManageActions button,.guide-head-stack #shareBtn{min-height:38px;height:auto;white-space:nowrap;flex:0 0 auto;padding:8px 12px;line-height:1.3}
.guide-head-stack #shareBtn{width:auto;margin:0}
.viewer .step:not(.text-callout){border:0;padding:0;margin:38px 0 60px}
.viewer .step:not(.text-callout):last-child{margin-bottom:28px}
.viewer .step img{margin-left:0;margin-right:0}
@media(max-width:760px){.guide-head-stack>.actions{justify-content:flex-start}.guide-head-stack .guide-heading h1{font-size:clamp(22px,5vw,28px)}.viewer .step:not(.text-callout){margin-bottom:44px}}