/* Luna 0.27 HIG-native presentation
   Source: Apple HIG skills. Functional baseline remains Luna 0.22. */

:root{
  color-scheme:light dark;
  --ui-font:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI",sans-serif;
  --bg:#ffffff;
  --sidebar:#f2f2f7;
  --surface:#ffffff;
  --secondary-surface:#f2f2f7;
  --text:#1d1d1f;
  --secondary:#6e6e73;
  --tertiary:#8e8e93;
  --separator:rgba(60,60,67,.18);
  --separator-strong:rgba(60,60,67,.29);
  --fill:rgba(118,118,128,.12);
  --fill-strong:rgba(118,118,128,.20);
  --accent:#007aff;
  --danger:#ff3b30;
  --success:#34c759;
  --shadow:0 16px 42px rgba(0,0,0,.14);
  --sidebar-width:224px;
  --toolbar-height:58px;
  --tabbar-height:58px;
  --ink:var(--text);
  --muted:var(--secondary);
  --faint:var(--tertiary);
  --line:var(--separator);
  --paper:var(--bg);
  --rail:var(--sidebar);
}
*{box-sizing:border-box}
html,body{margin:0;min-width:320px;min-height:100%;font-family:var(--ui-font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--accent)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(0,122,255,.28);outline-offset:2px}

/* macOS shell: sidebar + content. */
.app-shell{min-height:100dvh;display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);background:var(--bg)}
.rail{
  position:sticky;top:0;height:100dvh;padding:18px 12px;
  display:flex;flex-direction:column;
  background:rgba(242,242,247,.92);
  border-right:1px solid var(--separator);
  backdrop-filter:blur(24px) saturate(160%);
}
.brand{min-height:36px;margin:0 8px 8px;display:flex;align-items:center;color:var(--text)}
.brand strong{font-size:17px;line-height:1.2;font-weight:650;letter-spacing:-.2px}
.search-launch{
  width:100%;min-height:34px;margin:2px 0 12px;padding:7px 10px;
  border:0;border-radius:8px;background:var(--fill);
  color:var(--secondary);text-align:left;font-size:13px;
}
.search-launch:hover{background:var(--fill-strong);color:var(--text)}
.primary-nav{display:flex;flex-direction:column;gap:2px}
.primary-nav button{
  min-height:34px;padding:7px 10px;border:0;border-radius:8px;
  display:flex;align-items:center;justify-content:space-between;
  background:transparent;color:var(--text);text-align:left;font-size:13px;line-height:1.2;
}
.primary-nav button:hover{background:var(--fill)}
.primary-nav button.active{background:var(--fill-strong);font-weight:600}
.primary-nav b{
  min-width:18px;padding:1px 5px;border-radius:999px;background:var(--accent);
  color:#fff;font-size:10px;line-height:16px;text-align:center
}
.rail-bottom{margin-top:auto;padding:0 9px}
.connection{margin:0;display:flex;align-items:center;gap:6px;color:var(--tertiary);font-size:11px}
.connection i{width:6px;height:6px;border-radius:50%;background:var(--tertiary)}
.connection i.ok{background:var(--success)}

.workspace{min-width:0;padding:0 32px 64px;background:var(--surface)}
.view-header{
  min-height:var(--toolbar-height);max-width:1080px;
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  margin:0;padding:10px 0;
  border-bottom:1px solid var(--separator);
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(22px) saturate(160%);
}
.view-header>div:first-child{min-width:0;flex:1}
.view-header .overline:empty,.view-header .subtitle:empty{display:none}
.view-header h1{margin:0;font-size:22px;line-height:1.25;font-weight:650;letter-spacing:-.35px}
.view-toolbar{display:flex;align-items:center;gap:4px}
#headActions{display:flex;align-items:center;gap:4px}
.toolbar-button,.utility-menu>summary{
  min-width:28px;min-height:28px;padding:4px 8px;
  border:0;border-radius:7px;background:transparent;color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;gap:4px;
  font-size:13px;line-height:1;list-style:none;
}
.toolbar-button:hover,.utility-menu>summary:hover{background:var(--fill)}
.toolbar-button>span:first-child{font-size:18px;font-weight:400}
.utility-menu{position:relative}
.utility-menu>summary::-webkit-details-marker{display:none}
.utility-menu>summary{font-size:18px;color:var(--secondary)}
.utility-menu-items{
  position:absolute;right:0;top:34px;z-index:80;min-width:210px;padding:6px;
  display:flex;flex-direction:column;
  background:rgba(255,255,255,.94);border:1px solid var(--separator);border-radius:12px;
  box-shadow:var(--shadow);backdrop-filter:blur(24px) saturate(160%);
}
.utility-menu:not([open]) .utility-menu-items{display:none}
.utility-menu-items>button{
  min-height:34px;padding:7px 9px;border:0;border-radius:7px;background:transparent;text-align:left;font-size:13px
}
.utility-menu-items>button:hover{background:var(--fill)}
.luna-account{
  margin-top:5px;padding:7px 8px 2px;border-top:1px solid var(--separator);
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;
  color:var(--secondary);font-size:12px
}
.luna-account .text-button{padding:4px;color:var(--accent)}

.view{max-width:1080px;min-height:calc(100dvh - var(--toolbar-height) - 48px);padding:26px 0 0}
footer{display:none}

/* Controls and semantic hierarchy. */
.dark-button,.outline-button,.text-button{min-height:32px;border-radius:7px;padding:6px 10px;font-size:13px;font-weight:600}
.dark-button{border:0;background:var(--accent);color:#fff}
.outline-button{border:0;background:var(--fill);color:var(--text)}
.text-button{border:0;background:transparent;color:var(--accent)}
.dark-button:disabled,.outline-button:disabled,.text-button:disabled{opacity:.45;cursor:default}
.danger{color:var(--danger)}

/* Today: grouped native list, no dashboard cards. */
.is-today .view-header{display:flex}
.is-today .workspace{padding-top:0}
.is-today .view{min-height:calc(100dvh - var(--toolbar-height))}
.today-room{max-width:820px;padding:10px 0 40px}
.room-opening{margin:0 0 24px;padding:0}
.room-opening:before,.room-opening:after{display:none}
.room-date{margin:0;color:var(--secondary);font-size:13px}
.daily-weather{margin-top:5px;color:var(--secondary);font-size:13px}
.focus-panel,.today-room .room-section{
  max-width:820px;margin:0;padding:20px 0 4px;border-top:1px solid var(--separator)
}
.focus-panel{border-top:0;padding-top:0}
.progress-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin:0 0 7px}
.progress-heading h2,.room-section h2{margin:0;font-size:18px;line-height:1.3;font-weight:650;letter-spacing:-.2px}
.progress-heading .text-button{padding-right:0;font-weight:500}
.focus-row,.ongoing-row{margin:0;padding:0;border-bottom:1px solid var(--separator)}
.focus-row:last-child,.ongoing-row:last-child{border-bottom:0}
.attention-row{
  width:100%;min-height:56px;padding:12px 0;border:0;background:transparent;
  display:flex;flex-direction:column;gap:5px;text-align:left
}
.attention-row:hover strong{color:var(--accent)}
.attention-row>strong{font-size:15px;line-height:1.4;font-weight:600}
.attention-row>span,.quiet-empty,.schedule-empty{margin:0;color:var(--secondary);font-size:13px;line-height:1.5}
.ongoing-row .schedule-items{margin-top:4px;display:grid;gap:0}
.ongoing-row .schedule-item{min-height:28px;padding:2px 0}
.ongoing-row .schedule-item>span{
  width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:baseline
}
.ongoing-row .schedule-label{min-width:0;color:var(--secondary);font-size:13px;font-weight:400;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ongoing-row .schedule-date{color:var(--secondary);font-size:13px;font-weight:500;white-space:nowrap}

/* Inbox and work indexes are lists. */
.inbox-group,.intake-history,.space-index,.space-work{max-width:820px}
.inbox-group{margin:0 0 28px}
.inbox-group h2,.space-work h3{margin:0 0 6px;color:var(--secondary);font-size:12px;font-weight:600}
.inbox-entry{
  width:100%;min-height:58px;padding:12px 0;border:0;border-bottom:1px solid var(--separator);
  display:flex;flex-direction:column;gap:4px;background:transparent;text-align:left;color:var(--text)
}
.inbox-entry:hover strong{color:var(--accent)}
.inbox-entry strong{font-size:15px;line-height:1.4;font-weight:600}
.inbox-entry span{color:var(--secondary);font-size:13px;line-height:1.4}
.intake-history{margin-top:22px;border-top:1px solid var(--separator)}
.intake-history>summary,.work-groups>summary{
  min-height:40px;padding:11px 0;cursor:pointer;color:var(--secondary);font-size:13px;font-weight:600
}
.space-door{border-radius:0}

/* Destination detail: split detail on Mac, push-style destination on phone. */
#inboxDetail{
  margin:0;padding:0;border:0;background:var(--surface);color:var(--text);box-shadow:none
}
#inboxDetail::backdrop{display:none}
#inboxDetail[open]{
  position:fixed;top:0;right:0;bottom:0;left:auto;z-index:60;
  width:min(520px,42vw);height:100dvh;max-width:none;max-height:none;
  overflow:auto;border-left:1px solid var(--separator)
}
body:has(#inboxDetail[open]) .workspace{padding-right:calc(min(520px,42vw) + 32px)}
#inboxDetail .detail-wrap{min-height:100%;padding:0 28px 54px}
.object-topbar{
  min-height:var(--toolbar-height);position:sticky;top:0;z-index:3;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-bottom:1px solid var(--separator);
  background:rgba(255,255,255,.90);backdrop-filter:blur(22px) saturate(160%)
}
.object-topbar>span{color:var(--secondary);font-size:12px;font-weight:600}
.detail-back,.detail-close{
  width:28px;height:28px;min-width:28px;min-height:28px;padding:2px 6px;border:0;border-radius:7px;background:transparent;color:var(--accent);
  font-size:22px;line-height:1
}
.detail-back{display:none}
.detail-close:hover,.detail-back:hover{background:var(--fill)}
.object-preview{margin:22px 0 0;overflow:hidden;border-radius:10px;background:var(--secondary-surface)}
.object-preview img{display:block;max-width:100%;height:auto}
.document-preview{min-height:120px;padding:18px;display:flex;flex-direction:column;justify-content:center}
.object-heading{padding:24px 0 20px;border-bottom:1px solid var(--separator)}
.object-heading h2{margin:0;font-size:24px;line-height:1.22;font-weight:650;letter-spacing:-.45px}
.detail-content{margin:10px 0 0;color:var(--secondary);font-size:14px;line-height:1.65;white-space:pre-wrap}
.detail-meta{margin:8px 0 0;color:var(--tertiary);font-size:12px}
#detailEdit{padding-left:0}
.object-primary,#sourceActions{
  padding:18px 0 0;display:flex;align-items:center;gap:8px;flex-wrap:wrap
}
.object-primary select{display:none}
.object-primary .primary-action{min-height:36px}
.more-menu{margin-left:auto;position:relative}
.more-menu>summary{min-width:30px;min-height:30px;padding:5px;border-radius:7px;list-style:none;text-align:center}
.more-menu>summary::-webkit-details-marker{display:none}
.more-popover{
  position:absolute;right:0;top:34px;min-width:170px;padding:6px;border:1px solid var(--separator);
  border-radius:10px;background:var(--surface);box-shadow:var(--shadow);z-index:5
}
.more-popover button{width:100%;min-height:32px;padding:6px 8px;border:0;background:transparent;text-align:left;border-radius:6px}
.more-popover button:hover{background:var(--fill)}
.object-status{color:var(--secondary);font-size:13px}

/* Work detail follows list grammar. */
.work-record{padding:20px 0 0;border:0}
.work-record article+article{margin-top:24px;padding-top:24px;border-top:1px solid var(--separator)}
.work-record h3{margin:0 0 12px;font-size:16px;color:var(--text)}
.work-state{
  display:inline-block;margin:0 0 14px;padding:3px 7px;border-radius:999px;background:var(--fill);
  color:var(--secondary);font-size:11px;font-weight:600
}
.work-schedule{padding:0 0 8px}
.schedule-items{display:grid;gap:0}
.work-schedule .schedule-item{
  min-height:48px;padding:9px 0;border-bottom:1px solid var(--separator);
  display:flex;align-items:center;justify-content:space-between;gap:12px
}
.work-schedule .schedule-item:last-child{border-bottom:0}
.work-schedule .schedule-item>span{
  min-width:0;flex:1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:baseline
}
.work-schedule .schedule-label{font-size:14px;font-weight:500;line-height:1.45}
.work-schedule .schedule-date{color:var(--secondary);font-size:13px;font-weight:500;white-space:nowrap}
.work-latest{margin:8px 0 16px;color:var(--secondary);font-size:14px;line-height:1.6}
.work-actions{margin-top:14px;padding-top:14px;border-top:1px solid var(--separator);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.work-actions>details{margin-left:auto;position:relative}
.work-actions>details>summary{list-style:none;min-width:30px;min-height:30px;padding:5px;border-radius:7px;text-align:center}
.work-actions>details>summary::-webkit-details-marker{display:none}
.work-actions>details>button{display:block;min-height:32px}
.work-error{color:var(--danger);font-size:13px}
.work-materials{margin-top:24px;padding-top:20px;border-top:1px solid var(--separator)}
.material-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.material-heading h3{margin:0;font-size:16px}
.material-card{padding:12px 0;border-bottom:1px solid var(--separator);background:transparent;border-radius:0}
.material-card:last-child{border-bottom:0}

/* Sheets/dialogs for short focused tasks. */
dialog:not(#inboxDetail):not(.login-gate){
  width:min(520px,calc(100vw - 32px));max-height:88dvh;margin:auto;padding:0;
  border:0;border-radius:14px;background:var(--surface);color:var(--text);
  box-shadow:0 26px 80px rgba(0,0,0,.22);overflow:auto
}
dialog:not(#inboxDetail):not(.login-gate)::backdrop{background:rgba(0,0,0,.24);backdrop-filter:blur(5px)}
dialog form{padding:20px 22px 22px}
.dialog-head{min-height:36px;margin:0 0 16px;display:flex;align-items:center;justify-content:space-between}
.dialog-head h2{margin:0;font-size:18px;font-weight:650}
.close{min-width:28px;min-height:28px;padding:2px 6px;border:0;border-radius:7px;background:transparent;color:var(--secondary);font-size:20px}
.close:hover{background:var(--fill)}
.field{display:grid;gap:6px;margin:13px 0}
.field label{color:var(--secondary);font-size:12px;font-weight:600}
.field input,.field textarea,.field select,.keep-controls select{
  width:100%;min-height:36px;padding:8px 9px;border:1px solid var(--separator-strong);border-radius:7px;
  background:var(--secondary-surface);color:var(--text);font-size:14px
}
.field textarea{min-height:100px;resize:vertical}
.dialog-actions{margin-top:20px;display:flex;justify-content:flex-end;gap:8px}

/* Search: one focused sheet, list results. */
.search-dialog{width:min(680px,calc(100vw - 32px))}
.search-input-row{display:flex;gap:8px}
.search-input-row input{min-width:0;flex:1}
.search-filters{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.search-options{display:flex;gap:14px;flex-wrap:wrap;color:var(--secondary);font-size:12px}
.search-result{padding:13px 0;border-bottom:1px solid var(--separator);background:transparent;border-radius:0}
.search-result-title{padding:5px 0;font-size:15px}
.search-excerpt{color:var(--secondary);font-size:13px;line-height:1.6}
.search-result-meta,.search-result-bottom{color:var(--tertiary);font-size:11px}

/* Usage/account are utility menu rows, not home content. */
.utility-menu-items .module-status-strip{
  position:static;height:auto;margin-top:5px;padding-top:5px;border-top:1px solid var(--separator)
}
.utility-menu-items .usage-summary{
  position:static;min-width:0;max-width:none;width:100%;margin:0;padding:7px 9px;border:0;border-radius:7px;
  background:transparent;color:var(--secondary);text-align:left
}
.utility-menu-items .usage-summary:hover{background:var(--fill)}
.utility-menu-items .usage-summary span{display:block;margin:0 0 2px;color:var(--text);font-size:12px;font-weight:600}
.utility-menu-items .usage-summary strong{display:block;color:var(--secondary);font-size:11px;font-weight:400}

/* Sign-in: purpose first, no card chrome. */
.login-gate{
  width:100vw;height:100dvh;max-width:none;max-height:none;margin:0;padding:0;border:0;border-radius:0;
  background:var(--sidebar);box-shadow:none
}
.login-gate::backdrop{background:var(--sidebar)}
.login-gate form{
  width:min(320px,calc(100vw - 44px));min-height:100%;margin:0 auto;
  padding:clamp(96px,20vh,180px) 0 72px;display:block
}
.login-gate .dialog-head{justify-content:center;margin-bottom:28px}
.login-gate .dialog-head h2{font-size:32px;line-height:1;font-weight:700;letter-spacing:-1px}
.login-gate .dialog-head .close{display:none}
.login-gate label{display:grid;gap:6px;color:var(--secondary);font-size:12px;font-weight:600}
.login-gate input[type=password]{
  width:100%;height:44px;padding:0 11px;border:1px solid var(--separator-strong);border-radius:8px;
  background:var(--surface);font-size:16px
}
.login-gate [role=alert]{min-height:18px;margin:6px 0 0;color:var(--danger);font-size:12px}
.login-gate .dialog-actions{margin-top:12px}
.login-gate .dialog-actions .dark-button{width:100%;height:44px;font-size:15px}

/* Keep transient feedback compact. */
#toast{
  position:fixed;right:20px;bottom:20px;z-index:120;max-width:320px;padding:9px 11px;
  border-radius:8px;background:rgba(30,30,32,.94);color:#fff;font-size:12px;line-height:1.4;
  opacity:0;transform:translateY(5px);transition:opacity .15s,transform .15s;pointer-events:none
}
#toast.show{opacity:1;transform:none}

/* Phone (iOS): persistent tab bar + toolbar, same DOM, no overflow navigation. */
@media(max-width:760px){
  :root{--toolbar-height:58px;--tabbar-height:58px}
  body{padding-bottom:calc(var(--tabbar-height) + env(safe-area-inset-bottom))}
  .app-shell{display:block;min-height:100dvh}
  .rail{
    position:fixed;left:0;right:0;top:auto;bottom:0;z-index:70;
    width:100%;height:calc(var(--tabbar-height) + env(safe-area-inset-bottom));
    padding:4px 8px env(safe-area-inset-bottom);
    border:0;border-top:1px solid var(--separator);
    background:rgba(249,249,251,.90);backdrop-filter:blur(24px) saturate(160%)
  }
  .rail .brand,.rail>.search-launch,.rail-bottom{display:none}
  .primary-nav{
    height:54px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;align-items:stretch
  }
  .primary-nav button{
    min-width:0;min-height:54px;padding:0 2px;border-radius:0;
    display:flex;justify-content:center;align-items:center;
    color:var(--secondary);text-align:center;font-size:11px;font-weight:500
  }
  .primary-nav button:hover{background:transparent}
  .primary-nav button.active{background:transparent;color:var(--accent);font-weight:600}
  .primary-nav b{
    position:absolute;top:3px;left:calc(50% + 13px);transform:none;
    min-width:18px;height:18px;line-height:18px;padding:0 5px;border-radius:9px;
    background:var(--accent);color:#fff;font-size:10px;font-weight:600;text-align:center
  }

  .workspace{min-height:100dvh;padding:0 18px 28px}
  .view-header{
    min-height:var(--toolbar-height);max-width:none;padding:9px 0;
    top:0;flex-direction:row;flex-wrap:nowrap;align-items:center;
    background:rgba(255,255,255,.90)
  }
  .view-header h1{font-size:30px;line-height:1.1;font-weight:700;letter-spacing:-.7px}
  .toolbar-label{display:none}
  .toolbar-button,.utility-menu>summary{
    min-width:44px;min-height:44px;padding:0;border-radius:9px;background:transparent
  }
  .toolbar-button:hover,.utility-menu>summary:hover{background:var(--fill)}
  .toolbar-button>span:first-child{font-size:25px}
  .utility-menu>summary{font-size:22px;color:var(--secondary)}
  .utility-menu-items{
    right:0;top:48px;min-width:220px;padding:6px;background:rgba(255,255,255,.96)
  }
  .utility-menu-items>button{min-height:44px;padding:9px 10px;font-size:15px}
  .luna-account{min-height:50px;padding:8px 10px;font-size:13px}
  .utility-menu-items .usage-summary{min-height:50px;padding:8px 10px}
  .utility-menu-items .usage-summary span{font-size:13px}
  .utility-menu-items .usage-summary strong{font-size:12px}

  .view{max-width:none;min-height:calc(100dvh - var(--toolbar-height) - var(--tabbar-height));padding:18px 0 0}
  .today-room{max-width:none;padding:4px 0 24px}
  .room-opening{margin-bottom:18px}
  .focus-panel,.today-room .room-section{padding:18px 0 4px}
  .progress-heading h2,.room-section h2{font-size:17px}
  .attention-row{min-height:62px;padding:13px 0}
  .attention-row>strong{font-size:16px}
  .attention-row>span,.quiet-empty,.schedule-empty{font-size:14px}
  .ongoing-row .schedule-item>span{gap:10px}
  .ongoing-row .schedule-label{white-space:normal;font-size:14px}
  .ongoing-row .schedule-date{font-size:14px}
  .inbox-entry{min-height:62px;padding:13px 0}
  .inbox-entry strong{font-size:16px}
  .inbox-entry span{font-size:14px}

  /* Detail destination covers tab bar like a pushed screen. */
  #inboxDetail[open]{
    left:0;right:0;top:0;bottom:0;width:100vw;height:100dvh;z-index:100;border:0
  }
  body:has(#inboxDetail[open]){overflow:hidden}
  body:has(#inboxDetail[open]) .rail{display:none}
  body:has(#inboxDetail[open]) .workspace{padding-right:18px}
  #inboxDetail .detail-wrap{padding:0 18px calc(24px + env(safe-area-inset-bottom))}
  .object-topbar{
    min-height:calc(var(--toolbar-height) + env(safe-area-inset-top));
    padding-top:env(safe-area-inset-top);background:rgba(255,255,255,.92)
  }
  .object-topbar>span{position:absolute;left:50%;transform:translateX(-50%);font-size:13px}
  .detail-back{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;min-width:44px;min-height:44px;margin-left:-10px;font-size:30px}
  .object-topbar .detail-close{display:none}
  .object-heading{padding:22px 0 18px}
  .object-heading h2{font-size:26px;letter-spacing:-.6px}
  .object-primary,#sourceActions{padding-top:16px}
  .object-primary .primary-action{min-height:44px;flex:1}
  .work-schedule .schedule-item{min-height:54px}
  .work-schedule .schedule-item>span{gap:10px}
  .work-schedule .schedule-label{font-size:15px}
  .work-schedule .schedule-date{font-size:14px}
  .work-actions{gap:6px}
  .work-actions .outline-button,.work-actions>.text-button{min-height:44px}
  .work-actions .outline-button{flex:1}
  .work-actions>details>summary{min-width:44px;min-height:44px;padding:11px}
  .material-heading h3{font-size:17px}

  /* iPhone sheets rise from the bottom; login remains full-screen. */
  dialog:not(#inboxDetail):not(.login-gate){
    width:calc(100vw - 12px);max-height:calc(100dvh - 18px);
    margin:auto 6px 6px;border-radius:18px 18px 14px 14px
  }
  dialog:not(#inboxDetail):not(.login-gate) form{padding:18px 18px calc(18px + env(safe-area-inset-bottom))}
  .dialog-head{min-height:44px;margin-bottom:14px}
  .dialog-head .close{min-width:44px;min-height:44px}
  .field input,.field textarea,.field select,.keep-controls select{min-height:44px;font-size:16px}
  .dialog-actions .dark-button,.dialog-actions .outline-button,.dialog-actions .text-button{min-height:44px}
  .search-dialog{width:100vw;height:100dvh;max-height:none;margin:0;border-radius:0;padding:18px}
  .search-filters{grid-template-columns:1fr}
  .search-input-row input{font-size:16px}

  /* Desktop-only search launcher is replaced by the utility-menu search action. */
  #globalSearch{display:none}

  #toast{
    left:50%;right:auto;bottom:calc(var(--tabbar-height) + env(safe-area-inset-bottom) + 12px);
    transform:translate(-50%,5px);max-width:calc(100vw - 36px);text-align:center
  }
  #toast.show{transform:translate(-50%,0)}
}

/* Dark appearance follows the system. */
@media(prefers-color-scheme:dark){
  :root{
    --bg:#1c1c1e;--sidebar:#242426;--surface:#1c1c1e;--secondary-surface:#2c2c2e;
    --text:#f5f5f7;--secondary:#aeaeb2;--tertiary:#8e8e93;
    --separator:rgba(84,84,88,.65);--separator-strong:rgba(110,110,115,.72);
    --fill:rgba(118,118,128,.20);--fill-strong:rgba(118,118,128,.32);
    --accent:#0a84ff;--danger:#ff453a;--success:#30d158
  }
  .rail{background:rgba(36,36,38,.92)}
  .view-header,.object-topbar{background:rgba(28,28,30,.90)}
  .utility-menu-items{background:rgba(44,44,46,.96)}
  .login-gate,.login-gate::backdrop{background:var(--bg)}
  #toast{background:rgba(242,242,247,.94);color:#111}
  @media(max-width:760px){
    .rail{background:rgba(36,36,38,.92)}
    .view-header,.object-topbar{background:rgba(28,28,30,.92)}
  }
}

/* Accessibility preferences. */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto;transition-duration:.001ms;animation-duration:.001ms;animation-iteration-count:1}
}
@media(prefers-contrast:more){
  :root{--separator:rgba(60,60,67,.42);--separator-strong:rgba(60,60,67,.62)}
  .primary-nav button.active,.search-launch{outline:1px solid var(--separator-strong)}
}
@media(prefers-reduced-transparency:reduce){
  .rail,.view-header,.object-topbar,.utility-menu-items{backdrop-filter:none;background:var(--surface)}
  @media(max-width:760px){.rail{background:var(--surface)}}
}

@media(max-width:760px){
  .toolbar-button:hover,.utility-menu>summary:hover{background:transparent}
}

/* ---------- Luna 0.27 desktop architecture pass ----------
   macOS/HIG presentation only. Mobile remains frozen at 0.25. */
@media (min-width:761px){
  /* Window geometry: toolbar belongs to the window, content has its own readable width. */
  .workspace{
    width:auto;
    max-width:none;
    min-width:0;
    padding:0 32px 64px;
    justify-self:stretch;
  }
  .view-header{
    width:100%;
    max-width:none;
    margin:0;
    padding:10px 0;
    position:sticky;
    top:0;
    z-index:20;
  }
  .view-toolbar{margin-left:auto;flex:0 0 auto}
  .view{width:100%;max-width:1120px;padding-top:26px}
  .today-room,.inbox-group,.intake-history,.space-index,.space-work{max-width:880px}
  .view:has(.class-module){max-width:1200px;padding-top:14px}
  .class-module{width:100%;min-height:calc(100dvh - 90px);border:0;background:transparent}

  /* Inbox/list separators: one visual boundary per semantic boundary. */
  .inbox-group{margin-bottom:0}
  .inbox-group .inbox-entry:last-of-type{border-bottom:0}
  .intake-history{margin-top:0;border-top:1px solid var(--separator)}
  .intake-history>summary{padding-top:12px}

  /* Unified compact macOS controls. */
  .dark-button,.outline-button,.text-button,.toolbar-button,.utility-menu>summary,
  .tool-categories button,.tool-card-actions .outline-button,
  .material-card button,.material-route button{
    min-height:30px;border-radius:7px;font-size:13px;line-height:1.2
  }
  .dark-button{padding:6px 11px;border:0;background:var(--accent);color:#fff}
  .outline-button,.tool-card-actions .outline-button,
  .material-card button,.material-route button{
    padding:6px 10px;border:0;background:var(--fill);color:var(--text)
  }
  .text-button{padding:5px 6px;border:0;background:transparent;color:var(--accent)}
  .outline-button:hover,.tool-card-actions .outline-button:hover,
  .material-card button:hover,.material-route button:hover{background:var(--fill-strong)}

  /* One dialog architecture for Search, Composer, Progress, Usage, Owner, Calendar and Tools. */
  dialog:not(#inboxDetail):not(.login-gate){
    width:min(560px,calc(100vw - 48px));
    max-height:min(760px,calc(100dvh - 48px));
    margin:auto;
    padding:20px 22px 22px;
    border:0;
    border-radius:14px;
    overflow:auto;
    background:var(--surface);
    color:var(--text);
    box-shadow:0 24px 72px rgba(0,0,0,.22);
  }
  dialog:not(#inboxDetail):not(.login-gate)::backdrop{
    background:rgba(0,0,0,.24);
    backdrop-filter:blur(5px);
  }
  dialog:not(#inboxDetail):not(.login-gate)>form{padding:0!important;margin:0}
  dialog:not(#inboxDetail):not(.login-gate) .dialog-head{
    min-height:32px;margin:0 0 16px;align-items:center
  }
  dialog:not(#inboxDetail):not(.login-gate) .dialog-head h2{font-size:18px;font-weight:650}
  dialog:not(#inboxDetail):not(.login-gate) .close{
    width:30px;height:30px;min-width:30px;min-height:30px;padding:0
  }
  dialog:not(#inboxDetail):not(.login-gate) input:not([type=checkbox]):not([type=radio]),
  dialog:not(#inboxDetail):not(.login-gate) textarea,
  dialog:not(#inboxDetail):not(.login-gate) select{
    min-height:34px;
    padding:7px 9px;
    border:1px solid var(--separator-strong);
    border-radius:7px;
    background:var(--secondary-surface);
    color:var(--text);
    font-size:13px;
    line-height:1.4;
    box-sizing:border-box;
  }
  dialog:not(#inboxDetail):not(.login-gate) textarea{resize:vertical}
  dialog:not(#inboxDetail):not(.login-gate) input:focus,
  dialog:not(#inboxDetail):not(.login-gate) textarea:focus,
  dialog:not(#inboxDetail):not(.login-gate) select:focus{
    border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(0,122,255,.10);
    outline:none;
  }

  /* Search is a dialog with direct children, so every section lives inside one inset. */
  .search-dialog{
    width:min(680px,calc(100vw - 48px))!important;
    padding:20px 22px 22px!important;
    border-radius:14px!important;
    background:var(--surface)!important;
    color:var(--text)!important;
  }
  .search-dialog .search-form{padding:0!important;display:grid;gap:12px}
  .search-dialog .search-input-row{gap:8px}
  .search-dialog .search-input-row input{min-height:36px;padding:7px 9px}
  .search-dialog .search-filters{gap:10px}
  .search-dialog .search-filters label{gap:5px;color:var(--secondary);font-size:12px}
  .search-dialog .search-options{gap:10px 16px;color:var(--secondary);font-size:12px}
  .search-dialog .search-status{min-height:18px;margin:12px 0 0;color:var(--secondary);font-size:12px}
  .search-dialog .search-results{gap:0;margin-top:4px}
  .search-dialog .search-result{
    padding:12px 0;border:0;border-bottom:1px solid var(--separator);
    border-radius:0;background:transparent
  }
  .search-dialog .search-result:last-child{border-bottom:0}
  .search-dialog .search-result-title{padding:5px 0;font-size:14px;font-weight:600}
  .search-dialog .search-excerpt{margin:0 0 7px;color:var(--secondary);font-size:12px;line-height:1.55}
  .search-dialog .search-result-meta,.search-dialog .search-result-bottom{color:var(--tertiary);font-size:11px}
  .search-dialog .search-more{margin:14px auto 0}
  .search-dialog .search-help{margin:12px 0 0;color:var(--tertiary);font-size:11px}

  /* Progress/Owner/Usage no longer keep their old padded-card metrics. */
  .progress-dialog{padding:20px 22px 22px!important;background:var(--surface)!important;color:var(--text)!important}
  .progress-dialog label{margin:12px 0;color:var(--secondary);font-size:12px}
  .progress-dialog input:not([type=checkbox]),.progress-dialog textarea,.progress-dialog select{
    margin-top:6px;padding:7px 9px!important;border-radius:7px!important;font-size:13px!important
  }
  .owner-role,.github-preview{border:1px solid var(--separator);border-radius:9px;background:transparent}
  .owner-role{padding:10px 12px}
  .github-preview{padding:8px 12px}

  /* Assistant: one form grammar. */
  .assistant-surface{max-width:760px;padding-top:18px}
  .assistant-mark{margin:0 0 18px;color:var(--secondary);font-size:18px}
  .context-ask{
    max-width:760px;margin:0;padding:0;border:0;
    display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px 14px;align-items:center
  }
  .context-ask label{margin:0;color:var(--secondary);font-size:12px;font-weight:600;text-transform:none;letter-spacing:0}
  .context-ask select{
    width:100%;min-height:34px;padding:6px 30px 6px 9px;
    border:1px solid var(--separator-strong);border-radius:7px;
    background:var(--secondary-surface);color:var(--text);font-size:13px;outline:none
  }
  .context-ask textarea{
    grid-column:1/-1;width:100%;min-height:132px;margin:4px 0 0;padding:10px 11px;
    border:1px solid var(--separator-strong);border-radius:9px;background:var(--surface);
    color:var(--text);font:400 14px/1.55 var(--ui-font);resize:vertical;outline:none
  }
  .context-ask textarea:focus,.context-ask select:focus{
    border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,122,255,.10)
  }
  .ask-action{grid-column:1/-1;margin:0;display:flex;justify-content:flex-end;gap:8px}
  .assistant-answer{max-width:760px;margin-top:28px;padding-top:20px;border-top:1px solid var(--separator)}
  .answer-prose{font-size:14px;line-height:1.75}
  .answer-sources{margin-top:20px;padding-top:12px;border-top:1px solid var(--separator);font-size:13px}
  .answer-sources>button{min-height:44px;padding:10px 0;border-bottom:1px solid var(--separator)}
  .answer-sources strong{font-size:14px;font-weight:600}
  .answer-sources small{font-size:12px;color:var(--secondary)}

  /* Tools and material editors use the same control family. */
  .toolbox{max-width:980px}
  .toolbox-filter{margin-bottom:18px}
  .toolbox input,.tool-dialog input,.tool-dialog select,.tool-dialog textarea,
  #appendMaterialForm input,#appendMaterialForm textarea,
  .material-editor input,.material-editor textarea,.publication-form input{
    min-height:34px;padding:7px 9px;border:1px solid var(--separator-strong);
    border-radius:7px;background:var(--secondary-surface);color:var(--text);
    font-size:13px;line-height:1.45
  }
  .tool-categories{gap:6px;margin-top:12px}
  .tool-categories button{padding:6px 10px;border:0;background:var(--fill);color:var(--secondary)}
  .tool-categories button.active{background:var(--fill-strong);color:var(--text)}
  .tool-grid{gap:12px}
  .tool-card{padding:18px;border:1px solid var(--separator);border-radius:10px;background:var(--surface)}
  .tool-card-heading{gap:9px}
  .tool-mark{min-width:30px;height:30px;border-radius:7px;background:var(--fill);color:var(--secondary);font-size:15px}
  .tool-card h3{font-size:16px;font-weight:600}
  .tool-card p{margin:10px 0 8px;color:var(--secondary);font-size:13px;line-height:1.6}
  .tool-card small{color:var(--tertiary);font-size:12px}
  .tool-card-actions{padding-top:14px;gap:9px}
  .tool-card-actions a{font-size:13px;color:var(--accent)}
  .tool-result{padding:14px;border-radius:8px;background:var(--secondary-surface);color:var(--text);font-size:20px}
  .tool-file{padding:9px 0;border-bottom:1px solid var(--separator);font-size:13px}
  .tool-file small{font-size:12px;color:var(--secondary)}
  .tool-file button{min-height:28px;padding:3px 8px;border:0;border-radius:6px;background:var(--fill);font-size:14px}
  .tool-dialog,.context-source-dialog{background:var(--surface)}
  .tool-dialog h2,.context-source-dialog h2{font-size:18px}
  .tool-form{gap:13px;margin-top:16px}
  .tool-form label,.tool-help{font-size:13px}
  .context-source-text{font-size:14px;line-height:1.7}

  .material-editor{
    width:min(620px,calc(100vw - 48px))!important;max-height:85vh;
    padding:20px 22px 22px!important;border:0!important;border-radius:14px!important;
    background:var(--surface)!important;color:var(--text)!important;
    box-shadow:0 22px 70px rgba(0,0,0,.22)
  }
  .material-editor form{padding:0!important}
  .material-editor h2{font-size:18px;font-weight:650}
  .material-editor [data-close]{width:30px;height:30px;min-width:30px;min-height:30px;border-radius:7px}
  .material-route{margin:12px 0;padding:12px;border-radius:8px;background:var(--secondary-surface)}
  .work-materials button,.material-editor button{min-height:30px}
  .work-materials .primary-button,.material-editor .primary-button{
    padding:6px 11px;border:0;border-radius:7px;background:var(--accent);color:#fff;font-size:13px
  }
  .source-actions,#originalPreview{padding:14px 0 0;border-top:0}
  .append-materials{margin-top:18px;padding-top:18px;border-top:1px solid var(--separator)}

  /* Work rows/forms stop carrying 1.0 borders on top of native separators. */
  .work-record{border-top:0}
  .work-record-heading{align-items:baseline}
  .work-timing{font-size:13px;color:var(--secondary)}
  .publication-form{gap:8px;margin-top:12px}
  .publication-form label{font-size:12px;color:var(--secondary)}
}