:root{color-scheme:dark;--bg:#171918;--panel:#222620;--paper:#f1eee7;--ink:#242820;--text:#f2eee5;--muted:#b8b9b0;--line:#ffffff24;--accent:#d3bc95;font-family:Arial,Helvetica,sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}[hidden]{display:none!important}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button,a{color:inherit}button{cursor:pointer;min-height:44px;padding:12px 16px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);font-size:14px}button:disabled{opacity:.4;cursor:default}button:hover:not(:disabled){filter:brightness(1.12)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px}a{text-decoration:none}p{line-height:1.6}.quiet{background:transparent;color:var(--text)}.accent{background:var(--accent);color:var(--ink)}.builder-header,main,footer{max-width:1440px;margin:auto;padding-left:36px;padding-right:36px}.builder-header{height:86px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:25px;letter-spacing:.12em;font-weight:bold}.brand span{font-size:14px;color:var(--muted);font-weight:normal;letter-spacing:0;margin-left:20px}.draft-label,.eyebrow{font-size:14px;color:var(--accent)}main{padding-bottom:50px}.builder-title{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:32px 0}h1{font:400 clamp(30px,4vw,48px)/1.12 Georgia,serif;margin:0 0 12px;letter-spacing:-.025em}.builder-title p{color:var(--muted);margin:0}h2{font:400 30px/1.2 Georgia,serif;margin:0}h3{font-size:16px;margin:0}label{display:flex;flex-direction:column;gap:9px;font-size:14px;color:var(--muted)}input,select,textarea{width:100%;min-width:0;border:1px solid #ffffff35;background:#171918;color:var(--text);border-radius:4px;padding:12px;min-height:46px;font-size:16px}textarea{resize:vertical;line-height:1.5}input[type=file]{font-size:14px}input[type=file]::file-selector-button{border:0;border-radius:3px;padding:8px;margin-right:10px}.setup{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px}.save-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:24px 0 0}.file-actions{display:flex;flex-wrap:wrap;gap:8px}.save-toolbar p{font-size:14px;color:var(--muted);max-width:290px;margin:0}.local-note{font-size:14px;color:var(--muted);max-width:850px}.style-card{border:1px solid var(--line);padding:18px 22px;border-radius:4px;margin:26px 0}.style-card summary{font-size:16px;cursor:pointer;min-height:30px}.style-card p{color:var(--muted)}.style-card label{margin:14px 0}.style-card img{width:180px;max-height:180px;object-fit:contain}.style-card #stylePreview{display:flex;align-items:center;gap:16px}.validation{border-left:2px solid var(--accent);padding:10px 16px;color:var(--muted);font-size:14px;line-height:1.7}.validation p{margin:0}.validation ul{margin:6px 0;padding-left:20px}.section-line{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:24px 0 14px}.section-line span{font-size:14px;color:var(--muted)}#spreadList{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px}.spread-thumb{background:transparent;padding:8px;border:1px solid var(--line);color:var(--muted);text-align:left;min-width:0}.spread-thumb[aria-current=true]{border-color:var(--accent);color:var(--text);background:#d3bc9510}.spread-thumb .mini-spread{aspect-ratio:1.5;position:relative;background:var(--paper);margin-bottom:9px;pointer-events:none}.mini-slot{position:absolute;background:#d5d1c6;overflow:hidden}.mini-slot img{width:100%;height:100%;object-fit:contain}.spread-thumb span{display:block;font-size:12px;overflow-wrap:anywhere;line-height:1.4}.editor{margin-top:32px;padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:5px}.editor-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.editor-header h2{margin-top:8px}.move-actions{display:flex;gap:8px}.spread-settings{display:grid;grid-template-columns:1fr 1.3fr 1.3fr;gap:18px}.hint{font-size:14px;color:var(--muted);line-height:1.6}.layout-list{display:flex;gap:9px;overflow-x:auto;padding:5px 3px 12px}.layout-button{background:transparent;color:var(--muted);min-width:118px;padding:10px;border-color:var(--line);text-align:left}.layout-button[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}.layout-button .mini-spread{height:64px;position:relative;background:var(--paper);margin-bottom:10px}.layout-button span{font-size:12px;line-height:1.4;display:block}.spread-canvas{aspect-ratio:1.5;position:relative;background:var(--paper);box-shadow:0 3px 0 #a29e90,0 6px 0 #e3dfd5,0 20px 30px #0004;margin:24px 0 30px;border-radius:2px;isolation:isolate}.spread-canvas::after,.mini-spread::after{content:'';position:absolute;top:0;bottom:0;left:50%;width:6px;background:linear-gradient(90deg,transparent,#0002,transparent);pointer-events:none;z-index:3}.photo-slot{position:absolute;background:#e2ded3;border:1px dashed #a39e8c;color:#5a5e4f;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;overflow:hidden;padding:0;min-height:0;min-width:0;border-radius:1px}.photo-slot.active{border:3px solid #806840;box-shadow:0 0 0 2px #fff8}.photo-slot img{width:100%;height:100%;object-fit:contain;pointer-events:none}.photo-slot .slot-number{position:absolute;top:5px;left:5px;background:#f1eee7e8;color:var(--ink);font-size:12px;padding:4px 7px;border-radius:3px}.photo-slot .empty-slot{font-size:clamp(12px,1.8vw,20px);padding:8px;text-align:center;pointer-events:none}.parked-images{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px}.parked-images p{width:100%;font-size:14px;color:var(--muted);margin:0}.parked-images button{background:transparent;color:var(--text)}.parked-images img{height:44px;width:60px;object-fit:contain;display:inline-block;vertical-align:middle;margin-right:8px}.slot-editor{border-top:1px solid var(--line);padding-top:20px}.slot-editor h3{margin-bottom:14px}.slot-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.upload-button{padding:12px 16px;min-height:46px;background:var(--paper);color:var(--ink);cursor:pointer;border-radius:4px;justify-content:center}.upload-button input{max-width:300px}.slot-fields{display:grid;grid-template-columns:1fr 1fr;gap:20px}.slot-meta{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:16px;margin-top:18px}.spread-comment{margin-top:24px}.editor-navigation{display:flex;justify-content:space-between;gap:10px;margin-top:24px}footer{border-top:1px solid var(--line);padding-top:24px;padding-bottom:30px;font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:20px}dialog{background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:6px;width:min(1100px,calc(100% - 24px));padding:28px;max-height:90svh}dialog::backdrop{background:#000a}body.preview-open{overflow:hidden}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;position:sticky;top:-28px;background:var(--bg);padding:16px 0;z-index:5}.preview-page{margin:30px 0}.preview-page h3{font-size:20px}.preview-page .spread-canvas{margin:16px 0 20px}.preview-page .photo-slot{border:1px solid #aaa5;pointer-events:none}.preview-page p{font-size:14px;color:var(--muted);white-space:pre-wrap}.preview-note{padding:12px;border-top:1px solid var(--line);font-size:14px;line-height:1.6;white-space:pre-wrap}
@media(max-width:1000px){#spreadList{grid-template-columns:repeat(4,minmax(0,1fr))}.save-toolbar{align-items:start;flex-direction:column}.save-toolbar p{max-width:none}.slot-meta{grid-template-columns:1fr 1fr}.setup{grid-template-columns:1fr 1fr}.setup label:first-child{grid-column:1/-1}}
@media(max-width:600px){.builder-header,main,footer{padding-left:16px;padding-right:16px}.builder-header{height:70px}.brand span{display:none}.builder-title{align-items:start}.builder-title h1{font-size:32px}.builder-title p{font-size:14px}.builder-title button{padding:10px}.setup{gap:14px}.file-actions{display:grid;grid-template-columns:1fr 1fr;width:100%}.file-actions button{padding:12px 9px}.style-card{padding:16px}.section-line{align-items:start}.section-line h2{font-size:25px}#spreadList{gap:8px}.spread-thumb{padding:5px}.spread-thumb span{font-size:12px}.editor{padding:16px;margin-left:-4px;margin-right:-4px}.editor-header{align-items:start}.editor-header h2{font-size:25px}.move-actions{flex-direction:column}.move-actions button{padding:10px}.spread-settings{grid-template-columns:1fr;gap:14px}.slot-fields{grid-template-columns:1fr;gap:14px}.slot-meta{gap:12px}.photo-slot .slot-number{top:2px;left:2px;padding:2px 4px;font-size:12px}.photo-slot .empty-slot{font-size:12px;padding:3px}.photo-slot.active{border-width:2px}.editor-navigation{flex-wrap:wrap}.editor-navigation #previewAlbum{order:-1;width:100%}.editor-navigation>button{font-size:14px;padding:10px}.layout-button{min-width:104px}.style-card #stylePreview{flex-wrap:wrap}dialog{padding:16px}.preview-toolbar{top:-16px}footer{flex-direction:column}h2{font-size:25px}}
#confirmDialog{width:min(480px,calc(100% - 24px))}.confirm-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}
.download-ready{display:inline-block;max-width:100%;overflow-wrap:anywhere;margin-top:14px;padding:12px 16px;border:1px solid var(--accent);color:var(--accent);border-radius:4px;font-size:14px}
.examples-button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 18px;border:1px solid var(--accent);border-radius:4px;color:var(--accent);font-size:16px;white-space:nowrap}.how-to{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;gap:18px;padding:0;margin:24px 0}.how-to li{border-top:2px solid var(--accent);padding:16px 0}.how-to b,.how-to span{display:block;line-height:1.5}.how-to span{color:var(--muted);font-size:14px;margin-top:7px}.quick-help{border:1px solid var(--line);border-radius:4px;padding:15px 18px;margin:16px 0}.quick-help summary{font-size:16px;cursor:pointer;line-height:1.5}.quick-help p{font-size:16px;color:var(--muted);max-width:900px}.student-identity{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.student-identity p{grid-column:1/-1;margin:0;color:var(--muted);font-size:14px}.advanced{font-size:14px}.advanced summary{font-size:14px}.quick-help.advanced{margin-top:12px}.builder-header{gap:14px}.setup{margin-top:24px}.setup:has(#ownerField[hidden]){grid-template-columns:1fr 1fr}
@media(max-width:600px){.examples-button{font-size:14px;padding:10px 14px}.how-to{grid-template-columns:1fr;gap:0}.how-to li{padding:12px 0;border-top:1px solid var(--line);display:flex;align-items:start;gap:12px}.how-to b{flex:0 0 43%;font-size:14px}.how-to span{margin:0;font-size:14px}.quick-help{padding:13px}.quick-help p{font-size:14px}.student-identity{gap:12px}.builder-title{margin-bottom:16px}}
@media(max-width:600px){.setup:has(#ownerField[hidden])>label:nth-child(2){grid-column:1/-1}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.guide-breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;align-items:center;max-width:1440px;margin:0 auto;padding:14px 4.5vw;font-size:14px;color:var(--muted)}.guide-breadcrumbs a{color:var(--accent);padding:5px 0}.guide-breadcrumbs a:hover{text-decoration:underline}