/* Volume, chapter and section planning follows the existing paper palette. */
.writing-level{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);margin:16px 0 10px;padding:4px;gap:4px;background:var(--paper)}
.writing-level button{font-size:12px;color:var(--muted);padding:8px;min-height:40px}
.writing-level button[aria-pressed=true]{background:var(--green);color:var(--paper)}
.directory-heading,.volume-title,.section-row-heading{display:flex;justify-content:space-between;align-items:center;gap:10px}
.directory-heading{margin:0 6px 14px}.directory-heading h2{font-size:13px;font-weight:500;letter-spacing:2px}
.volume-group{border-top:1px solid var(--line);padding:18px 0}.volume-title{margin-bottom:8px;padding:0 8px}
.volume-title span{min-width:0}.volume-title small{font-size:9px;letter-spacing:2px;color:var(--gold);display:block;margin-bottom:6px}
.volume-title strong{font:16px var(--serif);overflow-wrap:anywhere}.volume-title .link-button{flex-shrink:0}
.volume-group .add-chapter{margin-top:6px;font-size:10px}
.directory-sections{margin:0 0 12px 20px;border-left:1px solid var(--line);padding-left:9px}
.directory-sections button{display:flex;gap:7px;text-align:left;align-items:center;font-size:11px;color:var(--muted);width:100%;padding:8px 5px;overflow-wrap:anywhere}
.directory-sections button span{font:11px Georgia,serif;color:var(--gold)}
.directory-sections button small{margin-left:auto;flex-shrink:0;font-size:9px}
.directory-sections button.active{background:var(--green-soft);color:var(--ink)}
.hierarchy-style-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.hierarchy-style-grid h3{font-size:18px;overflow-wrap:anywhere}
.distill-sample{min-height:300px!important;font-family:var(--serif);line-height:1.9}
.plan-volume{border:1px solid var(--line);padding:24px;margin-bottom:24px;background:var(--paper)}
.plan-volume-heading{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:15px}
.plan-volume-heading h3{font:25px var(--serif);margin-top:8px}
.plan-volume details>summary,.section-plan-row details>summary{cursor:pointer;padding:12px 0;min-height:44px;font-size:12px}
.plan-volume .plan-chapter>summary{font-size:16px}
.sections-editor{margin:15px 0}.section-plan-row{min-width:0;border:1px solid var(--line);padding:18px;margin:18px 0;background:var(--green-soft)}
.section-plan-row legend{font-size:11px;color:var(--muted);padding:0 6px}
.section-row-heading input{min-width:0}.section-row-heading button{flex-shrink:0}
.section-plan-row .textarea{min-height:90px}
.plan-sections{margin-top:16px;border-top:1px dashed var(--line)}
.plan-confirm-actions{z-index:1}
@media(max-width:800px){.hierarchy-style-grid{grid-template-columns:1fr}.plan-volume{padding:17px}.section-plan-row{padding:12px}}
@media(max-width:650px){.plan-volume{padding:12px}.plan-volume-heading h3{font-size:21px}.writing-level button{font-size:14px}.plan-confirm-actions{flex-wrap:wrap}.plan-confirm-actions .button{min-width:120px}.directory-heading h2{font-size:15px}.volume-title strong{font-size:19px}}