/* Base. Colours are the 谱书 palette (paper, ink, 朱红); dark mode is the 夜读 palette. Fonts are
   system faces only, so nothing is fetched from a font host that may be unreachable. */
:root{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg-page);font-synthesis-style:none;color-scheme:light;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --font-serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;
  --color-text:#2A2420;--color-text-secondary:#6A5F55;--color-text-label:#4A4038;--color-text-on-accent:#FBF8F1;
  --color-bg-page:#F2ECDF;--color-bg-surface:#FBF8F1;--color-bg-field:#FFFDF8;--color-bg-canvas:#FBF8F1;--color-bg-canvas-label:#FBF8F1E6;--color-bg-hover:#EFE6D5;--color-bg-subtle:#F2ECDF;--color-bg-banner:#E8DECB;--color-backdrop:#2A242080;
  --color-border:#D8CDB8;--color-border-field:#8C7B63;--color-border-field-focus:#A8322A;--color-border-card:#CDBFA6;--color-border-faint:#E2D7C3;--color-frame:#8C7B63;
  --color-accent:#A8322A;--color-accent-hover:#8E2922;--color-accent-soft:#FBF8F1;--color-accent-text:#7E231D;--color-text-eyebrow:#7E231D;--color-focus:#7E231D;--color-banner-text:#5E4520;
  --color-danger:#9A2A1E;--color-danger-border:#E3BFB7;--color-error-bg:#F8E6E1;--color-error-text:#8E2922;--color-error-border:#EBC9C1;--color-notice-bg:#EFE6D5;--color-status-bg:#EAE2D2;--color-status-text:#5A4F46;--color-status-pending-bg:#F3E6C8;--color-status-pending-text:#6E470C;--color-status-approved-bg:#E3EBDD;--color-status-approved-text:#2F5A3B;--color-status-rejected-bg:#F6E0DA;--color-status-rejected-text:#8E3A2A;--color-status-stale-bg:#F6E3C9;--color-status-stale-text:#74430F;--color-diff-bg:#F5EFE3;--color-diff-border:#B9A98C;--color-diff-removed:#8E4A3F;--color-diff-added:#2F6B3E;
  --color-edge-kin:#4A4038;--color-edge-spouse:#8C6A2F;--color-edge-lineage:#A8322A;--color-card-selected-border:#A8322A;--color-card-selected-bg:#FFFBF4;--color-card-selected-ring:#7C3C1E26;--color-avatar-bg:#EFE6D5;--color-avatar-text:#6A5F55;--color-avatar-ring:#D8CDB8;--color-junction-border:#CDBFA6;--color-junction-text:#4A4038;--color-junction-toggle-bg:#F2ECDF;--color-junction-divider:#D8CDB8;--color-marriage-text:#6E4F1C;--color-companion-bg:#F3E6C8;--color-companion-border:#DCC89A;--color-companion-text:#6E470C;
  --color-shadow-toast:#2A242033;--color-shadow-float:#2A24201f;--color-shadow-panel:#2A242029;--color-toast-button-border:#FBF8F180;--color-image-outline:#0000001a;}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;
  --color-text:#EDE8DE;--color-text-secondary:#A9A397;--color-text-label:#CFC8BA;--color-text-on-accent:#1A0F0C;
  --color-bg-page:#121614;--color-bg-surface:#1B201D;--color-bg-field:#161A18;--color-bg-canvas:#171C19;--color-bg-canvas-label:#171C19E6;--color-bg-hover:#262C28;--color-bg-subtle:#1F2521;--color-bg-banner:#1F2521;--color-backdrop:#000000A6;
  --color-border:#2F3632;--color-border-field:#6F7A72;--color-border-field-focus:#E07A5F;--color-border-card:#3A423C;--color-border-faint:#262C28;--color-frame:#5E6862;
  --color-accent:#E07A5F;--color-accent-hover:#EA9580;--color-accent-soft:#1A0F0C;--color-accent-text:#F0A08C;--color-text-eyebrow:#E0A458;--color-focus:#E0A458;--color-banner-text:#C9A15A;
  --color-danger:#F08A78;--color-danger-border:#5A2A22;--color-error-bg:#2A1714;--color-error-text:#F4A596;--color-error-border:#5A2A22;--color-notice-bg:#1F2521;--color-status-bg:#262C28;--color-status-text:#CFC8BA;--color-status-pending-bg:#3A2E14;--color-status-pending-text:#E8C47A;--color-status-approved-bg:#1E3324;--color-status-approved-text:#9FD3A9;--color-status-rejected-bg:#3A1E18;--color-status-rejected-text:#F0A08C;--color-status-stale-bg:#3A2A12;--color-status-stale-text:#E8B070;--color-diff-bg:#1F2521;--color-diff-border:#5E6862;--color-diff-removed:#F0A08C;--color-diff-added:#9FD3A9;
  --color-edge-kin:#BDB6A8;--color-edge-spouse:#C9A15A;--color-edge-lineage:#E07A5F;--color-card-selected-border:#E07A5F;--color-card-selected-bg:#262019;--color-card-selected-ring:#00000066;--color-avatar-bg:#262C28;--color-avatar-text:#CFC8BA;--color-avatar-ring:#3A423C;--color-junction-border:#3A423C;--color-junction-text:#CFC8BA;--color-junction-toggle-bg:#1F2521;--color-junction-divider:#3A423C;--color-marriage-text:#C9A15A;--color-companion-bg:#3A2E14;--color-companion-border:#5A4820;--color-companion-text:#E8C47A;
  --color-shadow-toast:#00000099;--color-shadow-float:#00000066;--color-shadow-panel:#00000080;--color-toast-button-border:#1A0F0C66;--color-image-outline:#ffffff1a;}}
:root[data-theme=dark]{color-scheme:dark;
  --color-text:#EDE8DE;--color-text-secondary:#A9A397;--color-text-label:#CFC8BA;--color-text-on-accent:#1A0F0C;
  --color-bg-page:#121614;--color-bg-surface:#1B201D;--color-bg-field:#161A18;--color-bg-canvas:#171C19;--color-bg-canvas-label:#171C19E6;--color-bg-hover:#262C28;--color-bg-subtle:#1F2521;--color-bg-banner:#1F2521;--color-backdrop:#000000A6;
  --color-border:#2F3632;--color-border-field:#6F7A72;--color-border-field-focus:#E07A5F;--color-border-card:#3A423C;--color-border-faint:#262C28;--color-frame:#5E6862;
  --color-accent:#E07A5F;--color-accent-hover:#EA9580;--color-accent-soft:#1A0F0C;--color-accent-text:#F0A08C;--color-text-eyebrow:#E0A458;--color-focus:#E0A458;--color-banner-text:#C9A15A;
  --color-danger:#F08A78;--color-danger-border:#5A2A22;--color-error-bg:#2A1714;--color-error-text:#F4A596;--color-error-border:#5A2A22;--color-notice-bg:#1F2521;--color-status-bg:#262C28;--color-status-text:#CFC8BA;--color-status-pending-bg:#3A2E14;--color-status-pending-text:#E8C47A;--color-status-approved-bg:#1E3324;--color-status-approved-text:#9FD3A9;--color-status-rejected-bg:#3A1E18;--color-status-rejected-text:#F0A08C;--color-status-stale-bg:#3A2A12;--color-status-stale-text:#E8B070;--color-diff-bg:#1F2521;--color-diff-border:#5E6862;--color-diff-removed:#F0A08C;--color-diff-added:#9FD3A9;
  --color-edge-kin:#BDB6A8;--color-edge-spouse:#C9A15A;--color-edge-lineage:#E07A5F;--color-card-selected-border:#E07A5F;--color-card-selected-bg:#262019;--color-card-selected-ring:#00000066;--color-avatar-bg:#262C28;--color-avatar-text:#CFC8BA;--color-avatar-ring:#3A423C;--color-junction-border:#3A423C;--color-junction-text:#CFC8BA;--color-junction-toggle-bg:#1F2521;--color-junction-divider:#3A423C;--color-marriage-text:#C9A15A;--color-companion-bg:#3A2E14;--color-companion-border:#5A4820;--color-companion-text:#E8C47A;
  --color-shadow-toast:#00000099;--color-shadow-float:#00000066;--color-shadow-panel:#00000080;--color-toast-button-border:#1A0F0C66;--color-image-outline:#ffffff1a;}
*{box-sizing:border-box}
/* The hidden attribute always wins over a component's display rule. */
[hidden]{display:none!important}
body{margin:0;background:var(--color-bg-page)}
button,input,textarea,select{font:inherit}
button,a,input,select,textarea{outline-offset:4px}
/* Headings and the main region take focus from script (view changes, skip link); they are not controls. */
[tabindex="-1"]:focus{outline:none}
button{cursor:pointer;border:1px solid var(--color-border);background:var(--color-bg-surface);color:var(--color-accent);padding:10px 16px;border-radius:6px;font-weight:550;transition:background .15s}
button:hover{background:var(--color-bg-hover)}
button:disabled{opacity:.5;cursor:wait}
button.primary{color:var(--color-text-on-accent);background:var(--color-accent);border-color:var(--color-accent)}
button.primary:hover{background:var(--color-accent-hover)}
button.danger{color:var(--color-danger);border-color:var(--color-danger-border)}
button.ghost{background:transparent;border-color:transparent}
.icon{vertical-align:-.125em}
a{color:var(--color-accent)}
h1,h2,h3,p{margin-top:0}
h1{font-family:var(--font-serif);font-size:32px;letter-spacing:2px;margin-bottom:12px}
h2{font-size:21px}
h3{font-size:16px}
p{line-height:1.8}
label{display:grid;gap:7px;font-size:13px;color:var(--color-text-label)}
input,select,textarea{width:100%;border:1px solid var(--color-border-field);border-radius:7px;background:var(--color-bg-field);padding:11px;color:var(--color-text);min-width:0}
textarea{resize:vertical;min-height:80px}
input:focus-visible,textarea:focus-visible,select:focus-visible{border-color:var(--color-border-field-focus);outline:2px solid var(--color-accent);outline-offset:2px}
input[type=checkbox]{width:auto;accent-color:var(--color-accent)}
.muted{color:var(--color-text-secondary);font-size:14px}
.subtle{font-size:12px;color:var(--color-text-secondary)}
.full{width:100%}
.stack{display:grid;gap:17px}
.check{display:flex;align-items:flex-start;gap:10px;line-height:1.6}
.inline{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.inline input{flex:1 1 12em}
.inline button{white-space:nowrap}
.actions{display:flex;gap:10px;flex-wrap:wrap}
.secondary-actions{display:contents}
#more-actions{display:none}
.tab-icon,.phone-only{display:none}
#more-actions .chevron{transition:rotate .15s}
#more-actions[aria-expanded=true] .chevron{rotate:180deg}
.grid-two{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:16px}
.error{background:var(--color-error-bg);color:var(--color-error-text);border:1px solid var(--color-error-border);padding:12px;border-radius:7px;font-size:13px;line-height:1.6}
.notice{background:var(--color-notice-bg);padding:13px;border-radius:8px;font-size:13px;line-height:1.7}
.panel{background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:8px;padding:26px}
.panel h2{margin-bottom:9px}
.empty{text-align:center;padding:60px 20px;color:var(--color-text-secondary)}
.empty strong{display:block;color:var(--color-accent);margin-bottom:10px}
.loading{padding:80px;text-align:center}

/* Page frame */
.dev-banner{background:var(--color-bg-banner);text-align:center;color:var(--color-banner-text);padding:8px 16px;font-size:12px;letter-spacing:.5px}
.site-header{max-width:1480px;padding:27px 28px;margin:auto;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center}
.brand{display:flex;gap:12px;align-items:center;text-decoration:none;font-family:var(--font-serif);font-weight:700;letter-spacing:2px;color:var(--color-text)}
.brand-mark{font-family:var(--font-serif);font-weight:700;font-size:26px;background:var(--color-accent);color:var(--color-accent-soft);width:48px;height:48px;display:grid;place-items:center;border-radius:6px;box-shadow:inset 0 0 0 3px var(--color-accent),inset 0 0 0 4px var(--color-accent-soft)}
.brand small{display:block;font-size:10px;letter-spacing:2px;font-weight:400;margin-top:5px;color:var(--color-text-secondary)}
#account{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px}
main{max-width:1480px;margin:20px auto 80px;padding:0 28px;min-height:65vh}
footer{max-width:1480px;margin:0 auto;padding:24px 28px;border-top:1px solid var(--color-border);color:var(--color-text-secondary);font-size:11px;display:flex;justify-content:space-between;gap:15px}
#toast{position:fixed;inset:auto auto 30px 50%;margin:0;border:0;overflow:visible;transform:translateX(-50%);display:flex;align-items:center;gap:14px;background:var(--color-accent);color:var(--color-text-on-accent);box-shadow:0 8px 30px var(--color-shadow-toast);border-radius:9px;padding:14px 22px;z-index:10;max-width:90vw;font-size:14px}
/* The node stays rendered (empty) so it keeps working as a live region. */
#toast:not(.show){opacity:0;pointer-events:none;padding:0}
#toast button{padding:6px 12px;background:transparent;color:var(--color-text-on-accent);border-color:var(--color-toast-button-border)}
.skip-link{position:absolute;left:12px;top:-60px;z-index:20;padding:10px 16px;border-radius:8px;background:var(--color-accent);color:var(--color-text-on-accent)}
.skip-link:focus{top:12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.welcome{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center;max-width:1000px;margin:65px auto}
.welcome h1{font-size:45px;line-height:1.5}
.welcome .steps{display:flex;gap:12px;margin-top:35px;font-size:13px;color:var(--color-text-secondary)}
.eyebrow{font-size:12px;color:var(--color-text-eyebrow);letter-spacing:3px;margin-bottom:18px}
.hero{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:30px 0}
.hero .muted{margin:0}
.tabs{display:flex;gap:28px;border-bottom:1px solid var(--color-border);margin-bottom:22px;overflow:auto}
.tabs button{border:none;border-radius:0;background:none;padding:15px 2px;white-space:nowrap;color:var(--color-text-label);font-family:var(--font-serif);font-size:16px}
.tabs button.active{color:var(--color-text);font-weight:700;box-shadow:inset 0 -3px 0 var(--color-accent)}

/* Proposals, lists and dialogs */
.section-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}
.section-head h2{margin:0}
.proposal{margin-bottom:14px}
.proposal-head{display:flex;justify-content:space-between;gap:15px;align-items:flex-start}
.proposal-head h3{margin-bottom:7px}
.proposal summary{font-size:13px;cursor:pointer;padding:10px 0}
.proposal .actions{padding-top:12px}
.proposal .actions:empty{display:none}
.badge{display:inline-block;white-space:nowrap;border-radius:5px;padding:4px 8px;font-size:11px;background:var(--color-status-bg);color:var(--color-status-text)}
.badge.pending{background:var(--color-status-pending-bg);color:var(--color-status-pending-text)}
.badge.approved{background:var(--color-status-approved-bg);color:var(--color-status-approved-text)}
.badge.rejected{background:var(--color-status-rejected-bg);color:var(--color-status-rejected-text)}
.badge.fresh{background:var(--color-status-approved-bg);color:var(--color-status-approved-text)}
.badge.stale{background:var(--color-status-stale-bg);color:var(--color-status-stale-text)}
.proposal-head>div:last-child{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:4px;flex-shrink:0}
.diff{display:grid;gap:8px;margin:10px 0 20px}
.diff-row{font-size:13px;padding:12px;background:var(--color-diff-bg);border-left:3px solid var(--color-diff-border);line-height:1.8;overflow-wrap:anywhere}
.diff-row del{color:var(--color-diff-removed)}
.diff-row ins{text-decoration:none;color:var(--color-diff-added)}
.diff-field{display:block;margin-left:12px}
.diff-row .diff-field:has(.diff-key){display:grid;grid-template-columns:5em minmax(0,1fr) 1.5em minmax(0,1fr);gap:8px;align-items:baseline;margin:6px 0 0 12px}
.diff-key{color:var(--color-text-secondary)}
.diff-arrow{color:var(--color-text-secondary);text-align:center}
/* 提议审核: queue beside the chosen proposal; one step at a time on narrow screens. */
.review{display:grid;grid-template-columns:minmax(260px,360px) minmax(0,1fr);gap:20px;align-items:start}
.review-list ul{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:10px}
.review-item{display:grid;gap:6px;width:100%;padding:14px 16px;text-align:left;border:1px solid var(--color-border);border-radius:8px;background:var(--color-bg-surface);color:var(--color-text);font-weight:400}
.review-item strong{font-size:15px;overflow-wrap:anywhere}
.review-item .muted{font-size:13px}
.review-item .badges{display:flex;flex-wrap:wrap;gap:4px}
.review-item[aria-current=true]{border-color:var(--color-accent);box-shadow:0 0 0 1px var(--color-accent)}
.review-pane{position:sticky;top:12px;min-width:0}
.review-pane .proposal-head h3{font-size:20px}
.review-actions{align-items:center;padding-top:8px}
.review-back{display:none}
@media(max-width:900px){
  .review{grid-template-columns:minmax(0,1fr)}
  .review.has-selection .review-list,.review:not(.has-selection) .review-pane{display:none}
  .review-pane{position:static}
  .review-back{display:inline-flex;align-items:center;min-height:44px;margin:-8px 0 8px -10px;padding:8px 10px;border:0;background:none}
  .diff-row .diff-field:has(.diff-key){grid-template-columns:4em minmax(0,1fr);row-gap:2px}
  .diff-row .diff-field:has(.diff-key) .diff-arrow{display:none}
  .diff-row .diff-field:has(.diff-key) ins{grid-column:2}
}
.list-row{display:flex;justify-content:space-between;gap:12px;padding:15px 0;border-bottom:1px solid var(--color-border);align-items:center}
.list-row:last-child{border:0}
.list-row small{display:block;margin-top:7px;color:var(--color-text-secondary)}
.invite-link{overflow-wrap:anywhere;font-size:12px}
.source{border-top:1px solid var(--color-border);padding-top:15px;margin-top:18px;font-size:12px;color:var(--color-text-secondary);line-height:1.8;white-space:pre-wrap}
.bio{white-space:pre-wrap;font-size:13px}
.marriage-episodes{padding-left:20px;font-size:13px;line-height:1.8;overflow-wrap:anywhere}
#episode-rows fieldset{border:1px solid var(--color-border);border-radius:8px;padding:12px;margin:0;gap:12px}
dialog{border:1px solid var(--color-border);border-radius:10px;background:var(--color-bg-surface);padding:28px;width:min(620px,calc(100vw - 28px));max-height:90dvh;overflow:auto;overscroll-behavior:contain;scroll-padding-block:88px 96px;color:var(--color-text)}
dialog .section-head{position:sticky;top:-28px;z-index:1;margin:-28px -28px 20px;padding:28px 28px 12px;background:var(--color-bg-surface)}
dialog form>.actions:last-child,#dialog-content>.actions:last-child{position:sticky;bottom:-28px;margin:0 -28px -28px;padding:12px 28px 28px;background:var(--color-bg-surface);border-top:1px solid var(--color-border)}
dialog::backdrop{background:var(--color-backdrop);backdrop-filter:blur(3px)}
dialog h2{font-size:20px}
dialog .actions{justify-content:flex-end;margin-top:20px}
.form-group{border:0;padding:0;margin:0;min-width:0;gap:12px}
.form-group>legend{padding:0;margin-bottom:4px;font-weight:600;font-size:14px}
#person-form{gap:28px}
/* 账号与安全 holds two forms; only the last keeps the sticky action bar. */
#phone-form>.actions:last-child,#email-bind-form>.actions:last-child{position:static;margin:0;padding:0;border:0;background:none}
#email-bind-form{margin-top:24px;padding-top:24px;border-top:1px solid var(--color-border)}
#email-bind-form h3{margin:0}
#security-form{margin-top:24px;padding-top:24px;border-top:1px solid var(--color-border)}
#phone-form h3,#security-form h3{margin:0}
.member-changes{margin-top:16px}
.held-note{color:var(--color-status-pending-text)!important}
.member-changes summary{cursor:pointer;font-size:13px;padding:8px 0}
#suggest-name,[data-remove-episode]{justify-self:start}
#episode-rows{display:grid;gap:16px}
.relations-edit{display:grid;gap:8px}
.relation-row{padding:10px;background:var(--color-bg-subtle);border-radius:6px}
.relation-row label{font-size:12px}

/* Tree page: controls stay outside the scrolling canvas. */
body:has(.workspace) .site-header{padding-top:12px;padding-bottom:12px}
main:has(.workspace){max-width:none;margin:8px auto 24px;padding:0 20px}
/* Every family page uses the compact frame: one-line family name, actions in 更多, then the tabs. */
main:has(.hero-actions) .hero{margin:10px 0;gap:12px}
main:has(.hero-actions) .hero h1{font-size:23px;margin-bottom:5px}
main:has(.hero-actions) .eyebrow{display:none}
main:has(.workspace) .tabs{margin-bottom:12px}
.tab-count{display:inline-block;min-width:18px;margin-left:4px;padding:0 5px;border-radius:9px;background:var(--color-accent);color:var(--color-text-on-accent);font-family:var(--font-sans);font-size:11px;font-weight:600;line-height:18px;text-align:center;vertical-align:1px}
.workspace{display:block;position:relative}
.graph-panel{padding:0;overflow:hidden;display:flex;flex-direction:column}
.graph-toolbar{display:flex;justify-content:space-between;gap:16px;padding:18px 20px;border-bottom:1px solid var(--color-border);align-items:center}
.toolbar-title{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.graph-toolbar .subtle{display:block}
.view-switch{display:inline-flex;border:1px solid var(--color-border-card);border-radius:6px;overflow:hidden;background:var(--color-bg-surface)}
.view-switch button{border:0;border-radius:0;padding:8px 16px;min-height:40px;font-family:var(--font-serif);font-size:14px;font-weight:500;color:var(--color-text);background:transparent}
.view-switch button+button{border-left:1px solid var(--color-border-card)}
.login-switch{display:flex;margin-bottom:16px}
.login-switch button{flex:1}
.view-switch button[aria-pressed=true]{background:var(--color-text);color:var(--color-bg-surface)}
.graph-toolbar select{font-size:12px;padding:8px;width:170px}
.graph-toolbar #tree-depth{width:115px}
.tree-filters{display:flex;gap:8px}
.tree-controls{display:flex;justify-content:flex-start;align-items:center;gap:12px;padding:12px 18px;border-bottom:1px solid var(--color-border);flex-wrap:wrap}
.tree-controls form{display:flex;gap:6px;flex:1;max-width:400px;margin-right:auto}
#tree-search{position:relative}
.search-results{position:absolute;z-index:4;top:calc(100% + 4px);left:0;right:0;display:grid;max-height:300px;overflow:auto;padding:4px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:10px;box-shadow:0 8px 30px var(--color-shadow-panel)}
.search-results button{text-align:left;border:0;font-size:14px;padding:8px 10px;min-height:44px}
.search-results small{display:block;font-size:12px;font-weight:400;color:var(--color-text-secondary)}
.tree-controls input{font-size:12px;padding:8px}
.tree-controls button{padding:7px 10px;font-size:12px;white-space:nowrap;min-height:44px}
.tree-bar{display:flex;flex-direction:column}
/* Desktop family pages: the site header folds into 更多 (with the other family actions) and the hero
   shrinks to one line; on the tree page the two toolbars also become one wrapping row. */
@media(min-width:801px){
  body:has(.hero-actions) .site-header{display:none}
  main:has(.hero-actions){margin-top:0}
  main:has(.hero-actions) .hero{margin:8px 0 2px}
  main:has(.hero-actions) .hero h1{margin:0}
  main:has(.hero-actions) .hero .muted{display:none}
  main:has(.hero-actions) .tabs{margin-bottom:20px}
  main:has(.workspace) .tabs{margin-bottom:8px}
  main:has(.hero-actions) .tabs button{padding:8px 2px}
  main:has(.hero-actions) #more-actions{display:inline-flex;align-items:center;gap:4px}
  main:has(.hero-actions) .phone-only{display:block}
  main:has(.hero-actions) .hero-actions{position:relative;flex-wrap:nowrap}
  main:has(.hero-actions) .hero-actions:not(.expanded) .secondary-actions{display:none}
  main:has(.hero-actions) .hero-actions.expanded .secondary-actions{position:absolute;top:calc(100% + 6px);right:0;z-index:8;display:flex;flex-direction:column;gap:2px;min-width:200px;padding:6px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:10px;box-shadow:0 8px 30px var(--color-shadow-panel)}
  main:has(.hero-actions) .secondary-actions button{text-align:left;border-color:transparent;min-height:44px}
  .tree-bar{flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:8px 14px;border-bottom:1px solid var(--color-border)}
  .tree-bar>.graph-toolbar,.tree-bar>.tree-controls,.tree-bar .toolbar-title{display:contents}
  .tree-bar .tree-controls form{flex:1 1 200px;max-width:300px;margin-right:auto}
  .tree-bar .view-switch button{min-height:38px;padding:6px 14px}
  .tree-bar .tree-controls button,.tree-bar select{min-height:38px}
}

.expanded-canvas{position:fixed;inset:10px;z-index:5;background:var(--color-bg-surface);border-radius:14px}
.expanded-canvas .graph-panel,.expanded-canvas .graph-scroll{height:100%}
body:has(.expanded-canvas){overflow:hidden}
.mobile-hint{font-size:11px;color:var(--color-text-secondary);margin-top:12px;max-width:65ch;text-wrap:pretty}
.notice,.detail .subtle{text-wrap:pretty}
#zoom-label,.graph-toolbar .subtle{font-variant-numeric:tabular-nums}

/* Canvas */
.canvas-body{position:relative;min-height:0;flex:1}
/* The canvas is a printed sheet: paper with a double frame (版框). */
.graph-scroll{position:relative;overflow:auto;touch-action:pan-x pan-y;height:max(440px,calc(100dvh - 350px));background-color:var(--color-bg-canvas);box-shadow:inset 0 0 0 2px var(--color-frame),inset 0 0 0 6px var(--color-bg-canvas),inset 0 0 0 7px var(--color-frame);overscroll-behavior:contain;overflow-anchor:none;cursor:grab}
.graph-scroll.dragging{cursor:grabbing;user-select:none}
.graph-scroll:focus-visible{outline:2px solid var(--color-accent);outline-offset:-2px}
#tree-size{position:relative}
.graph-stage{position:absolute;margin:0;transform-origin:0 0}
.graph-stage>svg{position:absolute;inset:0;pointer-events:none}
.generation-guide{stroke:var(--color-border-faint)}
.edge.kin{stroke:var(--color-edge-kin)}
.edge.spouse{stroke:var(--color-edge-spouse)}
.graph-stage path.selected-edge{stroke:var(--color-accent);stroke-width:4}
.graph-stage path.lineage-edge{stroke:var(--color-edge-lineage);stroke-width:3}
.graph-stage path.faded-edge{stroke-width:1}
.edge-hit{pointer-events:stroke;cursor:pointer}
/* 第×世 labels are translated with the scroll position so each row stays named at the right edge,
   as on a printed page; they sit in the gap above each row so a pinned label never covers a card. */
.generation{position:absolute;left:0;z-index:1;padding:2px 6px;line-height:1.2;border-radius:3px;font-family:var(--font-serif);font-size:14px;letter-spacing:2px;color:var(--color-text-label);background:var(--color-bg-canvas-label);pointer-events:none}
.zoom-controls{position:absolute;z-index:2;bottom:14px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:5px;padding:6px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:14px;box-shadow:0 4px 18px var(--color-shadow-float);white-space:nowrap}
.zoom-controls button{font-size:12px;padding:10px;min-height:44px}
.canvas-body:has(.detail:not([hidden])) .zoom-controls{left:16px;transform:none}
.zoom-controls output{min-width:42px;text-align:center;font-size:12px;color:var(--color-text-secondary)}

/* Person cards are vertical 谱页 blocks: 排行 on top, then columns read left to right (name,
   配…, 籍贯, years). They sit on the paper without a box; hover and selection draw one. */
.person-occurrence{position:absolute}
.person-node{background:var(--color-bg-surface)}
.person-occurrence .person-node{position:absolute;inset:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;gap:4px;padding:6px 2px;text-align:start;border:1px solid transparent;border-radius:4px;background:transparent;box-shadow:none;color:var(--color-text);font-weight:400}
.person-occurrence .person-node:hover{background:var(--color-bg-hover)}
.person-node .rank{flex:none;height:18px;font-family:var(--font-serif);font-size:13px;letter-spacing:3px;color:var(--color-text-secondary)}
.person-node .columns{flex:1;min-height:0;writing-mode:vertical-lr;display:flex;flex-direction:column;align-items:flex-start;gap:6px;overflow:hidden;font-family:var(--font-serif);line-height:1.25}
/* A column never wraps into a second one; what does not fit is clipped (the full text is the card's name). */
.person-node .columns>span{white-space:nowrap;overflow:hidden;max-block-size:100%}
.person-node .name{font-size:19px;font-weight:700;letter-spacing:4px}
.person-node .name.long{font-size:16px;letter-spacing:1px}
.person-node .spouse{font-size:15px;letter-spacing:2px}
.person-node .origin,.person-node .years{padding-top:8px;font-size:12px;color:var(--color-text-secondary)}
.person-node .origin.long,.person-node .years.long{padding-top:2px;font-size:11px;letter-spacing:-.5px}
.person-occurrence .person-node.selected{border:2px solid var(--color-card-selected-border);background:var(--color-card-selected-bg);box-shadow:0 4px 14px var(--color-card-selected-ring)}
.person-node.selected .name,.person-node.selected .rank{color:var(--color-accent-text)}
.person-node.off-lineage .columns,.person-node.off-lineage .rank{opacity:.45}
.person-node:focus-visible{outline:3px solid var(--color-focus)}
.parents-toggle{position:absolute;top:-10px;left:-8px;z-index:1;min-height:24px;padding:2px 8px;border-radius:12px;font-size:12px;background:var(--color-bg-surface);border-color:var(--color-junction-border);color:var(--color-junction-text)}
.companion-toggle{position:absolute;top:-10px;right:-8px;z-index:1;min-height:24px;padding:2px 8px;border-radius:12px;font-size:12px;background:var(--color-companion-bg);border-color:var(--color-companion-border);color:var(--color-companion-text)}
.person-node .avatar{flex:none;width:30px;height:30px;min-width:30px;font-size:14px;border:2px solid var(--color-bg-surface);box-shadow:0 0 0 1px var(--color-avatar-ring)}
/* 生…: children not drawn below a closed unit, named in one vertical column under the parent. */
.sheng{position:absolute;z-index:1;transform:translateX(-50%);writing-mode:vertical-lr;font-family:var(--font-serif);font-size:15px;letter-spacing:2px;line-height:1.5;color:var(--color-text-label)}
.sheng .sheng-name{writing-mode:inherit;display:inline;padding:0;border:0;border-radius:2px;background:none;font:inherit;font-weight:700;letter-spacing:inherit;color:var(--color-accent-text);text-decoration:underline;text-underline-offset:3px}

/* Relationship units: two-class selectors keep button:hover off the junction buttons. */
.marriage-label{position:absolute;min-height:24px;border:0;background:var(--color-bg-canvas);font-family:var(--font-serif);font-size:12px;padding:2px;color:var(--color-marriage-text);white-space:nowrap;text-align:center;border-radius:5px}
.lineage-junction{position:absolute;min-height:28px;display:flex;align-items:center;justify-content:center;border:1px solid var(--color-junction-border);background:var(--color-bg-surface);border-radius:14px;overflow:hidden}
/* The pill clips its children, so their focus ring is drawn inside the button. */
.lineage-junction button:focus-visible{outline:2px solid var(--color-focus);outline-offset:-2px}
.lineage-junction.adoptive{border-style:dashed}
.lineage-junction.unknown{border-style:dotted}
.lineage-junction .junction-label{align-self:stretch;min-height:26px;flex:1;min-width:0;border:0;padding:2px 5px;font-size:12px;background:transparent;white-space:nowrap;color:var(--color-junction-text)}
.lineage-junction .unit-toggle{width:28px;align-self:stretch;min-height:26px;flex-shrink:0;padding:0;border:0;border-left:1px solid var(--color-junction-divider);border-radius:0 13px 13px 0;background:var(--color-junction-toggle-bg);display:grid;place-items:center;font-size:14px}
.legend{display:flex;gap:20px;padding:14px 20px;color:var(--color-text-secondary);font-size:11px;border-top:1px solid var(--color-border);flex-wrap:wrap}
.legend svg{margin-right:5px;vertical-align:middle}
.legend span:first-child{color:var(--color-text-label)}

/* Timeline (方案 D): the same people as the current view, one life per row. The age column is
   sticky at the right edge. */
.timeline-scroll{position:relative;display:flex;overflow:auto;height:max(440px,calc(100dvh - 400px));background:var(--color-bg-canvas);overscroll-behavior:contain}
.timeline-scroll:focus-visible{outline:2px solid var(--color-accent);outline-offset:-2px}
.timeline-stage{position:relative;flex:none}
.timeline-stage svg{position:absolute;inset:0;pointer-events:none}
.timeline-stage .timeline-marks{z-index:1}
.timeline-grid{stroke:var(--color-border-faint);stroke-width:1}
.timeline-stem{stroke:var(--color-edge-kin);stroke-width:1.5}
.timeline-bracket{stroke:var(--color-edge-spouse);stroke-width:1.5}
.timeline-wed{fill:var(--color-edge-spouse)}
.timeline-kid{stroke:var(--color-edge-kin);stroke-width:2}
.timeline-tick{position:absolute;top:9px;transform:translateX(-50%);font-size:11px;color:var(--color-text-secondary);font-variant-numeric:tabular-nums;white-space:nowrap}
.timeline-tick.now{font-family:var(--font-serif);font-size:13px;font-weight:700;color:var(--color-accent-text)}
.life{position:absolute;height:28px;min-width:2px;display:flex;align-items:center;gap:6px;padding:0 8px;border:1px solid var(--color-border-card);border-right:0;border-radius:3px 0 0 3px;background:var(--color-bg-surface);color:var(--color-text);white-space:nowrap;font-weight:400}
.life:hover{background:var(--color-bg-hover)}
.life span{font-family:var(--font-serif);font-size:15px;font-weight:700}
.life small{font-size:11px;color:var(--color-text-secondary);font-variant-numeric:tabular-nums}
.life.ended{border-right:1px solid var(--color-border-card);border-radius:3px}
.life.selected{background:var(--color-accent);border-color:var(--color-accent);color:var(--color-text-on-accent)}
.life.selected small{color:var(--color-text-on-accent)}
.life.undated{border-style:dashed;border-right:1px dashed var(--color-border-card);border-radius:3px;background:transparent}
.life.undated small{margin-left:4px}
.life.off-lineage{opacity:.5}
.life:focus-visible{outline:3px solid var(--color-focus);outline-offset:2px}
.life-fade{position:absolute;height:28px;background:linear-gradient(90deg,transparent,var(--color-bg-surface));border-block:1px dashed var(--color-border-card);pointer-events:none}
.timeline-slice{position:absolute;top:28px;width:2px;margin-left:-1px;background:var(--color-accent);opacity:.6;pointer-events:none}
.ages{position:sticky;right:0;z-index:2;flex:none;width:64px;background:var(--color-bg-surface);border-left:1px solid var(--color-border)}
.ages-head{position:absolute;top:9px;left:0;right:0;text-align:center;font-size:11px;color:var(--color-accent-text);white-space:nowrap}
.ages [data-age-row]{position:absolute;left:0;right:0;text-align:center;font-size:13px;color:var(--color-text-label);font-variant-numeric:tabular-nums}
.ages .current{color:var(--color-accent-text);font-weight:700}
.timeline-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:10px 20px;border-top:1px solid var(--color-border)}
.timeline-controls label{display:block;font-size:14px;color:var(--color-text-label)}
.timeline-controls input[type=range]{flex:1 1 200px;width:auto;min-height:32px;padding:0;border:0;background:none;accent-color:var(--color-accent)}
.timeline-controls output{min-width:9.5em;font-size:13px;font-variant-numeric:tabular-nums}

/* Detail panel */
.detail{position:absolute;z-index:3;right:12px;top:12px;width:310px;max-height:calc(100% - 24px);overflow:auto;padding:20px;box-shadow:0 8px 30px var(--color-shadow-panel);overscroll-behavior:contain}
.detail[hidden]{display:none}
.detail-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center;margin-bottom:16px}
.detail .detail-head .avatar{width:56px;height:56px;font-size:24px}
.detail-title h2{margin:0 0 2px;font-family:var(--font-serif);font-size:22px;letter-spacing:2px;overflow-wrap:anywhere}
.detail-title .muted{font-size:13px}
#close-detail{align-self:start;min-height:44px}
.detail-actions{display:grid;gap:8px;margin-bottom:16px}
.detail-actions .pair{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.detail .detail-actions button{min-height:44px;font-size:14px}
button.outline{border-color:var(--color-accent)}
.detail-facts{margin:0;font-size:14px}
.detail-facts>div{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--color-border)}
.detail-facts dt{color:var(--color-text-secondary)}
.detail-facts dd{margin:0;text-align:right;overflow-wrap:anywhere}
.detail-relatives{list-style:none;margin:0 0 12px;padding:0;font-size:14px}
.detail-relatives li{display:grid;grid-template-columns:minmax(0,1fr) auto 44px;align-items:center;gap:4px;min-height:48px;border-bottom:1px solid var(--color-border)}
.rel-label{color:var(--color-text-secondary)}
.detail .rel-name{display:inline-flex;align-items:center;gap:4px;min-height:44px;padding:8px 4px;border:0;background:none;font-size:14px;color:var(--color-accent)}
.detail .rel-info{display:grid;place-items:center;width:44px;height:44px;padding:0;border:0;background:none;font-size:16px;color:var(--color-text-secondary)}
.detail .detail-units button{font-size:12px;padding:9px 10px;min-height:36px}
/* After .detail button: inline links inside the panel keep their plain look. */
button.link{padding:0;border:0;background:none;text-decoration:underline;text-underline-offset:3px;font-size:inherit}

/* Avatars: fixed dimensions keep photo loading independent of tree geometry. */
.avatar{position:relative;overflow:hidden;flex-shrink:0;width:35px;height:35px;border-radius:50%;background:var(--color-avatar-bg);display:grid;place-items:center;color:var(--color-avatar-text);font-family:serif;font-size:17px}
.avatar img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:inherit;outline:1px solid var(--color-image-outline);outline-offset:-1px}
.avatar-editor{min-width:0;border:1px solid var(--color-border);border-radius:10px;display:grid;gap:12px;padding:16px}
.avatar-editor input[type=file]{max-width:100%;font-size:12px}
.avatar-editor .actions{justify-content:flex-start;margin:0}
.avatar-current .avatar,.avatar-preview{width:72px;height:72px;border-radius:50%;object-fit:cover}
.avatar-crop:not([hidden]){display:grid;gap:10px}
.avatar-crop canvas{width:min(256px,100%);height:auto;border-radius:50%;border:2px solid var(--color-accent);justify-self:center}
.avatar-large{display:block;width:100%;max-width:512px;aspect-ratio:1;object-fit:contain;margin:auto}
.avatar-comparison{display:flex;gap:20px;align-items:center}
.avatar-comparison .avatar{width:64px;height:64px;margin-top:8px}

/* 谱书: A4 pages that always look like paper (their own palette, in any theme). On screen the
   pages stack with a shadow; in print each is one sheet. */
.book-view{display:grid;gap:12mm;justify-content:center;padding-bottom:12mm}
.book-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;max-width:210mm}
.book-toolbar .muted{margin-right:auto}
.book-page{--book-ink:#2A2420;--book-soft:#6A5F55;--book-paper:#FBF8F1;--book-rule:#8C7B63;--book-red:#8E2922;
  page:book;position:relative;width:210mm;height:297mm;max-width:100%;box-sizing:border-box;padding:24mm 26mm 20mm 20mm;overflow:hidden;background:var(--book-paper);color:var(--book-ink);box-shadow:0 4px 24px var(--color-shadow-panel);font-family:var(--font-serif);display:flex;flex-direction:column;align-items:center;gap:6mm}
@page book{size:A4 portrait;margin:0}
.book-frame{position:absolute;inset:10mm;border:3px double var(--book-rule);pointer-events:none}
.book-head{align-self:stretch;text-align:center;font-size:10pt;letter-spacing:4px;color:var(--book-soft)}
.book-foot{position:absolute;bottom:13mm;left:0;right:0;text-align:center;font-size:10pt;color:var(--book-soft);font-variant-numeric:tabular-nums}
.book-gen{position:absolute;top:24mm;right:14mm;writing-mode:vertical-rl;font-size:14pt;letter-spacing:6px}
.book-host{display:flex;flex-direction:column;align-items:center;gap:3mm}
.book-host.has-children::after{content:'';width:0;height:8mm;border-left:1.5px solid var(--book-ink)}
.book-origin{margin:0;font-size:10pt;color:var(--book-soft);letter-spacing:1px}
.book-see{margin-left:6px;font-size:9pt;color:var(--book-red)}
.book-row{position:relative;align-self:stretch;display:flex;flex-direction:row-reverse;padding-top:8mm;margin-top:-6mm}
.book-row::before{content:'';position:absolute;top:0;left:calc(100% / var(--n) / 2);right:calc(100% / var(--n) / 2);border-top:1.5px solid var(--book-ink)}
.book-child{position:relative;flex:1;min-width:0;display:flex;justify-content:center}
.book-child::before{content:'';position:absolute;top:-8mm;left:50%;height:8mm;border-left:1.5px solid var(--book-ink)}
.book-person{display:flex;flex-direction:column;align-items:center;gap:2mm}
.book-rank{min-height:5mm;font-size:10pt;letter-spacing:3px;color:var(--book-soft)}
.book-cols{writing-mode:vertical-lr;display:flex;flex-direction:column;align-items:flex-start;gap:2mm;line-height:1.3;max-height:95mm}
.book-name{font-size:18pt;font-weight:700;letter-spacing:4px}
.book-host .book-name{font-size:22pt}
.book-spouse{font-size:12pt;letter-spacing:2px}
.book-note{padding-top:6mm;font-size:9pt;color:var(--book-soft)}
.book-sheng{writing-mode:vertical-lr;margin:3mm 0 0;max-height:75mm;font-size:11pt;letter-spacing:2px;line-height:1.5}
.book-child .book-see{writing-mode:vertical-lr;margin:2mm 0 0}
.book-child .book-person{max-width:100%}
.book-cover{justify-content:center;gap:16mm}
.book-title{margin:0;writing-mode:vertical-rl;font-size:40pt;letter-spacing:12px;color:var(--book-ink)}
.book-meta{margin:0;text-align:center;font-size:10pt;line-height:2;color:var(--book-soft)}
.book-index-page{align-items:stretch}
.book-index-page .book-meta{text-align:left}
.book-index{align-self:stretch;list-style:none;margin:0;padding:0;columns:3;column-gap:8mm;font-size:10pt;line-height:1.8}
.book-index li{display:flex;justify-content:space-between;gap:4mm;break-inside:avoid;border-bottom:1px dotted #CDBFA6}
.book-index li span:last-child{color:var(--book-soft);font-variant-numeric:tabular-nums}

@media(max-width:800px){
  .site-header{padding:20px}
  .brand{font-size:15px}
  .brand-mark{width:40px;height:40px;font-size:24px}
  .brand small{font-size:9px}
  main{padding:0 16px;margin-top:10px}
  footer{flex-direction:column}
  .dev-banner{font-size:10px}
  #account{font-size:11px;gap:4px 12px}
  #account button{padding:8px}
  .welcome{grid-template-columns:1fr;gap:28px;margin:20px auto;max-width:480px}
  .welcome h1{font-size:32px}
  .welcome .steps{margin-top:15px}
  /* One header row: family name, 更多, 补充人物. The site header folds into 更多. */
  body:has(.hero-actions) .site-header,body:has(.hero-actions) footer,.hero .eyebrow{display:none}
  .hero:has(.hero-actions){flex-direction:row;align-items:center;justify-content:space-between;gap:8px;margin:12px 0}
  .hero:has(.hero-actions)>div:first-child{min-width:0}
  .hero h1{font-size:20px;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .hero:has(.hero-actions) .muted{display:none}
  .hero-actions{position:relative;flex-wrap:nowrap;flex-shrink:0}
  .phone-only{display:block}
  /* Bottom tab bar with icons; the page reserves its height. */
  body:has(.tabs){padding-bottom:calc(64px + env(safe-area-inset-bottom))}
  .tabs,main:has(.workspace) .tabs{position:fixed;left:0;right:0;bottom:0;z-index:5;display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:0;margin:0;padding:4px 4px env(safe-area-inset-bottom);background:var(--color-bg-surface);border-bottom:0;border-top:1px solid var(--color-border);overflow:visible}
  .tabs button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:56px;padding:4px 2px;font-size:11px;border:0;border-radius:10px;white-space:nowrap}
  .tabs button.active{border-bottom:0;background:none;color:var(--color-accent);font-weight:650}
  .tab-icon{display:block;font-size:20px;line-height:0}
  .panel{padding:20px}
  .proposal-head{gap:6px}
  dialog{padding:20px}
  dialog .section-head{top:-20px;margin:-20px -20px 16px;padding:20px 20px 10px}
  dialog{scroll-padding-block:72px 80px}
  dialog form>.actions:last-child,#dialog-content>.actions:last-child{bottom:-20px;margin:0 -20px -20px;padding:10px 20px 20px}
  main:has(.workspace){padding:0 10px}
  main:has(.hero-actions) .hero .actions{gap:4px}
  main:has(.hero-actions) .hero .actions button{padding:8px;font-size:12px}
  #more-actions{display:inline-block}
  .hero-actions:not(.expanded) .secondary-actions{display:none}
  .hero-actions.expanded .secondary-actions{position:absolute;top:calc(100% + 6px);right:0;z-index:8;display:flex;flex-direction:column;gap:2px;min-width:180px;padding:6px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:14px;box-shadow:0 8px 30px var(--color-shadow-panel)}
  .secondary-actions button{text-align:left;border-color:transparent;min-height:44px}
  .graph-panel{padding:0}
  .graph-toolbar{align-items:flex-start;flex-wrap:wrap;padding:10px;gap:8px}
  .graph-toolbar select{width:150px;max-width:100%;min-height:44px}
  .tree-filters{width:100%;flex-wrap:nowrap}
  .tree-filters #focus-person{flex:1;width:0}
  .tree-controls{padding:10px;gap:8px;order:-1}
  #toggle-detail,#expand-canvas{display:none}
  .timeline-scroll{height:56dvh;min-height:320px}
  .timeline-controls{padding:8px 10px}
  .tree-controls form{flex:1 1 200px;max-width:none;min-width:0}
  .tree-controls input,.graph-toolbar select{font-size:16px}
  .wide-only{display:none}
  .graph-scroll{height:60dvh;min-height:340px}
  .expanded-canvas{inset:0;border-radius:0}
  .expanded-canvas .graph-scroll{min-height:0}
  /* On phones the canvas usually starts mid-screen, so the zoom bar sits at its top edge, clear of the sheet. */
  .zoom-controls{top:8px;bottom:auto;gap:2px;padding:4px;max-width:calc(100% - 12px);border-radius:12px}
  .canvas-body:has(.detail:not([hidden])) .zoom-controls{left:50%;transform:translateX(-50%)}
  .zoom-controls button{padding:8px 6px;font-size:11px}
  .zoom-controls output{min-width:32px;font-size:11px}
  .lineage-junction{overflow:visible}
  .unit-toggle::after{content:'';position:absolute;right:-6px;top:-7px;width:38px;height:42px}
  .legend{gap:12px;font-size:10px;padding:8px 10px}
  /* The sheet sits above the fixed tab bar so navigation stays reachable while it is open. */
  .detail{position:fixed;inset:auto 8px calc(72px + env(safe-area-inset-bottom));width:auto;min-height:180px;max-height:calc(52dvh - 64px);border-radius:18px;z-index:6;padding:16px 20px}
  .detail button{min-height:44px}
}

/* Short screens (small laptops, browser zoom): trim the chrome above the canvas so it fits. */
@media(max-height:760px){
  body:has(.workspace) .site-header{padding-top:6px;padding-bottom:6px}
  main:has(.workspace) .hero .muted{display:none}
  main:has(.workspace) .hero{margin:6px 0}
  .graph-toolbar{padding-top:8px;padding-bottom:8px}
  .tree-controls{padding-top:6px;padding-bottom:6px}
}
@media(prefers-reduced-motion:no-preference){
  .detail.opening{animation:detail-in 200ms ease-out}
  dialog[open]{animation:detail-in 180ms ease-out}
  dialog[open]::backdrop{animation:fade-in 180ms ease-out}
  @keyframes detail-in{from{opacity:0;translate:0 8px}}
  @keyframes fade-in{from{opacity:0}}
}
@media print{
  /* The book prints its pages only, one per sheet. */
  body:has(.book-view) :is(.dev-banner,.site-header,.hero,.tabs,footer,.book-toolbar,#toast){display:none!important}
  body:has(.book-view) main{margin:0;padding:0;max-width:none}
  body:has(.book-view){padding:0!important;background:none}
  /* The whole document uses the book's page, so no blank default page opens or closes it. */
  html:has(.book-view),body:has(.book-view),body:has(.book-view) main,.book-view{page:book}
  .book-view{display:block;padding:0}
  .book-page{box-shadow:none;margin:0;break-after:page;print-color-adjust:exact}
  .book-page:last-child{break-after:auto}
  .site-header,#account,.dev-banner,.hero .actions,.tabs,footer,#toast,dialog,.mobile-hint,
  .graph-toolbar select,.tree-controls,.tree-filters,.zoom-controls,.detail,#expand-canvas,#toggle-detail{display:none!important}
  main{margin:0;padding:0}
  .hero{margin:0 0 15px}
  .hero h1{font-size:24px}
  .workspace,.expanded-canvas{position:static;display:block}
  body:has(.expanded-canvas){overflow:visible}
  .graph-panel{display:block;height:auto!important;overflow:visible;border:0}
  .graph-toolbar,.legend{border:0}
  .graph-scroll{height:auto;min-height:0;overflow:visible;background:none}
  #tree-size{width:auto!important;height:auto!important}
  .graph-stage{position:relative;left:0!important;top:0!important;margin:0;transform:none!important}
  .person-node{box-shadow:none;print-color-adjust:exact}
  .person-occurrence .person-node{border-color:var(--color-border-card)}
}