/* Every colour here is a token. Nothing is hardcoded except pure black and
   white inside colour derivations, which live in js/theme.js.

   The defaults below are the "Paper" preset, duplicated so the grid paints
   correctly in the instant before the theme is applied. */
:root{
  --paper:#fbfcfd;
  --ink:#161d2b;
  --ink-soft:#5d6980;
  --ink-faint:#9aa4b8;
  --rule:#e6eaf1;
  --rule-hour:#ccd4e2;
  --accent:#1f6f6a;
  --accent-soft:#e6f2f1;
  --on-accent:#ffffff;
  --surface:#ffffff;
  --surface-line:#dfe4ec;
  --now:#c2560d;
  --warn:#a33;
  --shadow:rgba(22,29,43,.18);
  --backdrop:rgba(22,29,43,.28);

  --gutter-w:62px;
  --radius:5px;
  --ui:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{font-family:var(--ui);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}

/* Modules load async; showing the grid mid-boot flashes an unstyled skeleton. */
.app{display:flex;flex-direction:column;height:100vh;min-height:380px;opacity:0}
body.ready .app{opacity:1}

.bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:9px 14px;border-bottom:1px solid var(--rule-hour);position:relative}
.nav{display:flex;align-items:center;gap:2px}
.icon-btn{width:26px;height:26px;display:grid;place-items:center;border:1px solid transparent;background:none;border-radius:var(--radius);color:var(--ink-soft);cursor:pointer;font-size:14px;line-height:1}
.icon-btn:hover{background:color-mix(in srgb,var(--ink-soft) 12%,transparent);color:var(--ink)}
.icon-btn[aria-expanded=true]{background:var(--accent-soft);color:var(--accent)}
.range-label{font-family:var(--mono);font-size:12px;color:var(--ink);min-width:148px;text-align:center}
.tbtn{font-size:12px;font-weight:500;padding:4px 10px;border:1px solid var(--surface-line);background:transparent;border-radius:var(--radius);color:var(--ink-soft);cursor:pointer}
.tbtn:hover{border-color:var(--accent);color:var(--accent)}
.spacer{flex:1}
.field{display:flex;align-items:center;gap:6px}
.field label,.plabel{font-size:10px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint)}
select,input[type=time],input[type=text],input[type=date],input[type=number]{font-family:var(--mono);font-size:12px;color:var(--ink);padding:4px 6px;border:1px solid var(--surface-line);border-radius:var(--radius);background:var(--surface)}
select{font-family:var(--ui);cursor:pointer;max-width:170px}
:focus-visible{outline:2px solid var(--accent);outline-offset:1px}

.panel{position:absolute;top:100%;right:12px;z-index:30;background:var(--surface);border:1px solid var(--surface-line);border-radius:8px;box-shadow:0 14px 40px var(--shadow);padding:14px;width:296px;display:none;max-height:min(78vh,620px);overflow:auto}
.panel.open{display:block}
.panel h3{margin:0 0 10px;font-size:10px;font-weight:600;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-faint)}
.prow{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px}
.prow.stack{flex-direction:column;align-items:stretch;gap:5px}
.prow select,.prow input{max-width:none;width:150px}
.prow.stack select,.prow.stack input{width:100%}
.psep{height:1px;background:var(--rule);margin:12px -14px}
.check{display:flex;align-items:center;gap:7px;cursor:pointer;font-size:12px;color:var(--ink-soft)}

.rules-list{max-height:210px;overflow:auto;margin:-2px -4px 8px}
.rule-item{display:flex;align-items:center;gap:8px;padding:6px 4px;border-radius:5px}
.rule-item:hover{background:color-mix(in srgb,var(--ink-soft) 9%,transparent)}
.rule-item.confirming{background:color-mix(in srgb,var(--warn) 12%,transparent);padding:7px 8px}
.confirm-msg{flex:1;font-size:12px;color:var(--ink)}
.mini{font-family:var(--ui);font-size:11.5px;font-weight:500;padding:4px 9px;border-radius:4px;cursor:pointer;border:1px solid transparent}
.mini.ghost{background:var(--surface);border-color:var(--surface-line);color:var(--ink-soft)}
.mini.danger{background:var(--warn);color:var(--paper)}
.rule-dot{width:9px;height:9px;border-radius:2px;flex:none}
.rule-main{flex:1;min-width:0;cursor:pointer}
.rule-name{font-size:12.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rule-meta{font-family:var(--mono);font-size:10px;color:var(--ink-faint);margin-top:1px}
.rule-x{border:none;background:none;color:var(--ink-faint);cursor:pointer;font-size:14px;padding:2px 4px;border-radius:4px}
.rule-x:hover{background:color-mix(in srgb,var(--warn) 14%,transparent);color:var(--warn)}
.empty{font-size:12px;color:var(--ink-faint);padding:8px 4px 12px}

/* --- days shown ----------------------------------------------------------- */
.wd-row{display:flex;gap:4px;margin-bottom:9px}
.wd{flex:1;padding:6px 0;font-family:var(--ui);font-size:11px;font-weight:600;border:1px solid var(--surface-line);background:var(--surface);color:var(--ink-faint);border-radius:4px;cursor:pointer}
.wd[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.hintline{font-size:11px;color:var(--ink-faint);line-height:1.45;margin:-2px 0 10px}

/* --- appearance ----------------------------------------------------------- */
.presets{display:flex;gap:6px;margin-bottom:12px}
.preset{width:26px;height:26px;border-radius:50%;border:1px solid var(--surface-line);cursor:pointer;position:relative;overflow:hidden}
.preset[aria-pressed=true]{outline:2px solid var(--accent);outline-offset:1px}
/* A quadrant of the preset's own accent, so the swatch previews more than the
   background it is named for. */
.preset::after{content:"";position:absolute;inset:auto -30% -30% auto;width:60%;height:60%;border-radius:50%;background:var(--pa)}

.role{display:flex;align-items:center;gap:9px;padding:4px 0}
.role-sw{width:24px;height:24px;flex:none;padding:0;border:1px solid var(--surface-line);border-radius:5px;background:none;cursor:pointer}
.role-sw::-webkit-color-swatch-wrapper{padding:2px}
.role-sw::-webkit-color-swatch{border:none;border-radius:3px}
.role-sw::-moz-color-swatch{border:none;border-radius:3px}
.role-main{flex:1;min-width:0}
.role-label{font-size:12.5px;color:var(--ink);line-height:1.2}
.role-hint{font-size:10.5px;color:var(--ink-faint);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
/* The contrast ratio, in the same mono face as every other number in the app.
   Quiet until it drops below the readable floor. */
.ratio{font-family:var(--mono);font-size:10.5px;color:var(--ink-faint);flex:none;text-align:right;min-width:34px}
.ratio.low{color:var(--warn);font-weight:500}
.ratio-legend{font-size:10.5px;color:var(--ink-faint);line-height:1.45;margin:8px 0 10px}

.head{display:flex;border-bottom:1px solid var(--rule-hour);padding-right:var(--sbw,0px)}
.head-pad{width:var(--gutter-w);flex:none;border-right:1px solid var(--rule)}
.day-head{flex:1;min-width:0;padding:7px 8px 8px;border-right:1px solid var(--rule);display:flex;align-items:baseline;gap:6px;position:relative}
.day-head:last-child{border-right:none}
.dow{font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint)}
.dnum{font-family:var(--mono);font-size:15px;font-weight:500}
.day-head.is-today .dow,.day-head.is-today .dnum{color:var(--now)}
/* A gap in the run of dates is information: it means days are filtered out. */
.day-head.after-gap{border-left:1px dashed var(--rule-hour)}
.col.after-gap{border-left:1px dashed var(--rule-hour)}
.add{position:absolute;right:5px;top:6px;width:20px;height:20px;border:none;background:none;border-radius:4px;cursor:pointer;color:var(--ink-faint);font-size:15px;line-height:1;display:grid;place-items:center;opacity:0}
.day-head:hover .add,.add:focus-visible{opacity:1}
.add:hover{background:var(--accent-soft);color:var(--accent)}

.grid-wrap{position:relative;flex:1;min-height:0;display:flex;flex-direction:column}
.scroll{flex:1;overflow-y:auto;overflow-x:hidden}
.canvas{display:flex;position:relative}
.gutter{width:var(--gutter-w);flex:none;position:relative;border-right:1px solid var(--rule)}
.tick{position:absolute;right:7px;transform:translateY(-50%);font-family:var(--mono);font-size:10px;color:var(--ink-faint);white-space:nowrap}
.cols{flex:1;display:flex;position:relative;min-width:0}
.col{flex:1;min-width:0;position:relative;border-right:1px solid var(--rule);touch-action:none}
.col:last-child{border-right:none}
.col.weekend{background:color-mix(in srgb,var(--ink-soft) 6%,transparent)}
.line{position:absolute;left:0;right:0;height:0;border-top:1px solid var(--rule)}
.line.hour{border-top-color:var(--rule-hour)}
.gutter .line{left:auto;right:0;width:5px}
.nowline{position:absolute;left:0;right:0;height:0;border-top:1.5px solid var(--now);z-index:6;pointer-events:none}
.nowline::before{content:"";position:absolute;left:-3px;top:-3.5px;width:6px;height:6px;border-radius:50%;background:var(--now)}

.empty-hint{position:absolute;inset:0;display:none;place-items:center;pointer-events:none;padding:20px}
.empty-hint.show{display:grid}
.empty-hint span{font-size:12.5px;color:var(--ink-faint);background:var(--paper);padding:8px 14px;border-radius:20px;border:1px solid var(--rule);text-align:center}

.foot{display:flex;border-top:1px solid var(--rule-hour);padding-right:var(--sbw,0px)}
.foot.hidden{display:none}
.foot-pad{width:var(--gutter-w);flex:none;border-right:1px solid var(--rule);display:flex;align-items:center;justify-content:flex-end;padding-right:7px}
.foot-pad span{font-size:9px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint)}
.foot-cell{flex:1;min-width:0;border-right:1px solid var(--rule);padding:6px 8px;font-family:var(--mono);font-size:11px;color:var(--ink-soft)}
.foot-cell:last-child{border-right:none}
.foot-cell.over{color:var(--warn)}
.foot-cell.zero{color:var(--ink-faint)}

.block{position:absolute;border-radius:4px;padding:3px 6px;overflow:hidden;cursor:grab;user-select:none;z-index:3;border:1px solid var(--bd);background:var(--bg);border-left:3px solid var(--bd)}
.block:active{cursor:grabbing}
.block.dragging{z-index:9;box-shadow:0 4px 14px var(--shadow)}
.b-title{font-size:11.5px;font-weight:500;line-height:1.25;color:var(--fg);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:4px}
.b-time{font-family:var(--mono);font-size:9.5px;line-height:1.3;color:var(--fg);opacity:.72;margin-top:1px;white-space:nowrap}
.block.short{padding:1px 6px;display:flex;align-items:center;gap:6px}
.block.short .b-time{margin-top:0}
.rep{flex:none;width:7px;height:7px;opacity:.6}
.grip{position:absolute;left:0;right:0;bottom:0;height:8px;cursor:ns-resize}
.grip::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);width:16px;height:2px;border-radius:1px;background:currentColor;color:var(--fg);opacity:0}
.block:hover .grip::after{opacity:.35}
.draft{position:absolute;z-index:8;border-radius:4px;pointer-events:none;background:var(--accent-soft);border:1px solid var(--accent);border-left:3px solid var(--accent);padding:3px 6px}
.draft .b-time{color:var(--accent);opacity:1}

.backdrop{position:fixed;inset:0;background:var(--backdrop);display:grid;place-items:center;z-index:40;padding:16px}
.sheet{background:var(--surface);border-radius:8px;width:min(360px,100%);box-shadow:0 18px 50px var(--shadow);padding:16px;max-height:92vh;overflow:auto}
.sheet h2{margin:0 0 14px;font-size:10px;font-weight:600;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-faint)}
.row{display:flex;flex-direction:column;gap:5px;margin-bottom:11px}
.row.split{flex-direction:row;gap:10px}
.row.split>div{flex:1;display:flex;flex-direction:column;gap:5px}
.sheet label{font-size:10px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint)}
.sheet input{width:100%;font-size:13px;padding:7px 8px}
.sheet input[type=text]{font-family:var(--ui)}
.swatches{display:flex;gap:6px}
.sw{width:22px;height:22px;border-radius:50%;border:2px solid transparent;cursor:pointer}
.sw[aria-pressed=true]{border-color:var(--ink)}
.dows{display:flex;gap:4px}
.dtog{flex:1;padding:6px 0;font-family:var(--ui);font-size:11px;font-weight:600;border:1px solid var(--surface-line);background:var(--surface);color:var(--ink-faint);border-radius:4px;cursor:pointer}
.dtog[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.dtog:disabled{opacity:.4;cursor:not-allowed}
.seg{display:flex;border:1px solid var(--surface-line);border-radius:5px;overflow:hidden}
.seg button{flex:1;padding:7px 4px;font-family:var(--ui);font-size:12px;font-weight:500;border:none;background:var(--surface);color:var(--ink-soft);cursor:pointer}
.seg button[aria-pressed=true]{background:var(--accent);color:var(--on-accent)}
.seg.small button{padding:5px 4px;font-size:11.5px}
.actions{display:flex;gap:8px;margin-top:15px;align-items:center}
.btn{font-family:var(--ui);font-size:12.5px;font-weight:500;padding:7px 14px;border-radius:var(--radius);cursor:pointer;border:1px solid transparent}
.btn.primary{background:var(--accent);color:var(--on-accent)}
.btn.primary:hover{filter:brightness(.92)}
.btn.ghost{background:var(--surface);border-color:var(--surface-line);color:var(--ink-soft)}
.btn.ghost:hover{color:var(--ink)}
.btn.danger{background:none;color:var(--warn);margin-right:auto;padding-left:0}
.btn.danger:hover{text-decoration:underline}
.err{font-size:11.5px;color:var(--warn);margin:-4px 0 8px;display:none}
.note{font-size:11px;color:var(--ink-faint);margin-top:-4px;margin-bottom:10px;line-height:1.4}

.hint{padding:6px 14px;font-size:11px;color:var(--ink-faint);border-top:1px solid var(--rule)}
.hint b{font-weight:500;color:var(--ink-soft)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media (max-width:680px){.field label{display:none}:root{--gutter-w:48px}.hint{display:none}}