:root{
  --ink:#ECE5D6; --case:#F5F0E6; --line:#DACFB9;
  --brass:#BF5E3A; --patina:#997554; --paper:#33302A; --dim:#8A8072;
  --on:#FBF7EE; --dot:#CDBE9E;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --cond:'Barlow Condensed',Oswald,'Arial Narrow',sans-serif;
  --body:Inter,system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;background:var(--ink);color:var(--paper);}
body{font-family:var(--body);-webkit-font-smoothing:antialiased;
  padding:max(28px,env(safe-area-inset-top)) 20px calc(48px + env(safe-area-inset-bottom));}
.wrap{max-width:880px;margin:0 auto}
/* Daily stays a readable column; the header + Theory use the full width. */
#view-daily{max-width:640px;margin:0 auto}
.mono{font-family:var(--mono)}
.dim{color:var(--dim)}
.faint{opacity:.65}

.title{font-family:var(--cond);font-weight:600;font-size:30px;letter-spacing:.14em;
  text-transform:uppercase;margin:0}
.head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:26px}
.head-right{display:flex;align-items:center;gap:12px}
#date{font-size:11px;letter-spacing:.16em}
/* Header gets tight on phones — the date is the first thing to go. */
@media (max-width:560px){#date{display:none}}
.icon-btn{background:none;border:1px solid var(--line);color:var(--dim);width:32px;height:30px;
  border-radius:2px;cursor:pointer;font-size:16px;line-height:1;display:flex;align-items:center;
  justify-content:center;flex:none;padding:0}
.icon-btn:hover{color:var(--brass);border-color:var(--brass)}

.top-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:stretch}
@media (max-width:480px){.top-grid{grid-template-columns:1fr}}
.week-card{border:1px solid var(--line);background:var(--case);padding:18px 18px 14px;border-radius:2px;
  display:flex;flex-direction:column}
.eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}
.mode{font-family:var(--cond);font-size:27px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;color:var(--brass);margin:4px 0 2px}
.flavor{font-size:13.5px;opacity:.8}
.today{margin-top:12px;border:1px solid var(--line);background:var(--case);border-radius:2px;
  padding:11px 15px;font-size:13px;line-height:1.5}
.today-scale b{color:var(--paper);font-weight:500}
.today-back{font-family:var(--mono);font-size:11.5px;color:var(--patina);margin-top:2px}
.mode-count{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--dim);margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}

.mode-detail{margin:9px 0 2px;display:grid;gap:7px}
.mode-meta{font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:var(--patina)}
.mode-blurb{font-size:12.5px;line-height:1.5;opacity:.8}
.mode-tip{font-size:12px;line-height:1.45;color:var(--patina);
  border-left:2px solid rgba(153,117,84,.4);padding-left:9px}

.key-box{border:1px solid var(--line);background:var(--case);border-radius:2px;display:flex;flex-direction:column}
.key-head{display:flex;flex-direction:column;width:100%;padding:18px 18px 12px}
.key-eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim)}
.key-name{font-family:var(--cond);font-size:27px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;color:var(--brass);margin:4px 0 7px}
.key-notes{font-family:var(--mono);font-size:12.5px;color:var(--paper);opacity:.85;
  letter-spacing:.06em;line-height:1.55}
.key-detail{padding:0 18px 16px;display:grid;gap:8px}
.key-group{font-family:var(--mono);font-size:12px;color:var(--paper)}
.key-group b{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--patina);font-weight:500;margin-right:8px}
.chord-table{margin-top:4px;border-top:1px solid var(--line);padding-top:8px;display:grid;gap:5px}
.chord-row{display:grid;grid-template-columns:34px 46px 1fr;gap:8px;font-family:var(--mono);font-size:12px}
.ch-roman{color:var(--dim)}
.ch-name{color:var(--brass)}
.ch-notes{color:var(--paper);opacity:.85}

.block{margin-top:30px}
.block-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.block-name{font-family:var(--cond);font-size:15px;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:var(--patina);white-space:nowrap}
.rule{flex:1;height:1px;background:var(--line)}
.block-mins{font-family:var(--mono);font-size:11px;color:var(--dim)}

.item{display:flex;gap:13px;padding:11px 0;border-bottom:1px solid rgba(218,207,185,.7);
  cursor:pointer;-webkit-tap-highlight-color:transparent}
.item:last-child{border-bottom:none}
.box{width:15px;height:15px;border:1px solid var(--dim);border-radius:2px;flex:none;margin-top:2px;
  display:flex;align-items:center;justify-content:center;transition:background .16s,border-color .16s}
.item:hover .box{border-color:var(--brass)}
.box.on{background:var(--brass);border-color:var(--brass)}
.box.on::after{content:"";width:4px;height:8px;border:solid var(--on);border-width:0 2px 2px 0;
  transform:rotate(45deg) translate(-1px,-1px)}
.item-body{flex:1;min-width:0}
.item-name{font-size:15px;line-height:1.35;transition:opacity .16s}
.item.done .item-name{opacity:.4;text-decoration:line-through;text-decoration-color:var(--dim)}
.item-sub{font-size:12.5px;color:var(--dim);margin-top:3px;line-height:1.45}
.prove{font-size:12.5px;color:var(--patina);margin-top:5px;line-height:1.45;
  border-left:2px solid rgba(153,117,84,.4);padding-left:9px}
.prove b{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  font-weight:500;display:block;margin-bottom:2px;opacity:.75}
.item-mins{font-family:var(--mono);font-size:11px;color:var(--dim);flex:none;padding-top:3px}

.ready-sub{display:flex;align-items:center;gap:9px;margin-top:9px;cursor:pointer;
  -webkit-tap-highlight-color:transparent}
.ready-box{width:13px;height:13px;margin-top:0;border-radius:50%}
.ready-sub:hover .ready-box{border-color:var(--brass)}
.ready-label{font-family:var(--mono);font-size:12px;letter-spacing:.02em;color:var(--patina)}
.ready-sub.on .ready-label{color:var(--brass)}
.ready-yn{font-family:var(--mono);font-size:10px;color:var(--dim);margin-left:auto;flex:none}

.foot{margin-top:34px;padding-top:18px;border-top:1px solid var(--line)}
#note{width:100%;background:var(--case);border:1px solid var(--line);color:var(--paper);
  border-radius:2px;padding:11px 12px;font-family:var(--body);font-size:13.5px;
  resize:vertical;min-height:64px}
#note:focus{outline:none;border-color:var(--patina)}
.tally{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:14px;
  font-size:11px;letter-spacing:.1em;color:var(--dim)}
.tally-right{display:flex;gap:14px;align-items:center}
.sync{font-size:10px;letter-spacing:.12em;text-transform:uppercase}
.sync.ok{color:var(--patina)} .sync.pending{color:var(--dim)} .sync.err{color:var(--brass)}
.link{background:none;border:none;color:var(--dim);font:inherit;cursor:pointer;
  text-decoration:underline;text-underline-offset:3px;padding:0}
.link:hover{color:var(--brass)}

.modal{position:fixed;inset:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}
.modal-backdrop{position:absolute;inset:0;background:rgba(51,45,37,.35);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}
.modal-card{position:relative;background:var(--case);border:1px solid var(--line);border-radius:3px;
  padding:20px;max-width:420px;width:100%;box-shadow:0 20px 60px rgba(51,45,37,.18)}
.modal-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}
.modal-title{font-family:var(--cond);font-weight:600;font-size:20px;letter-spacing:.12em;
  text-transform:uppercase;margin:0}

.settings{font-size:11.5px;color:var(--dim);display:grid;gap:12px}
.srow{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.slabel{width:118px;flex:none}
.indent{padding-left:0}
.srow input,.srow select{background:var(--ink);border:1px solid var(--line);color:var(--paper);
  padding:4px 7px;border-radius:2px;font:inherit}
.srow .narrow{width:60px}
.srow .key-in{flex:1;min-width:90px;font-family:var(--mono);font-size:12px}
.settings-div{height:1px;background:var(--line);margin:4px 0}
.ok-text{color:var(--patina)}
.btn-sm{background:var(--brass);border:none;color:var(--on);font-family:var(--mono);font-size:11px;
  letter-spacing:.06em;padding:5px 12px;border-radius:2px;cursor:pointer;flex:none}
.btn-sm:hover{filter:brightness(1.06)}
.srow select:disabled,.srow input:disabled{opacity:.5;cursor:not-allowed}

/* Read-only (no sync key): checkboxes stay visible but aren't interactive. */
#app.readonly .item,#app.readonly .ready-sub{cursor:default}
#app.readonly .item:hover .box,#app.readonly .ready-sub:hover .ready-box{border-color:var(--dim)}

button:focus-visible,textarea:focus-visible,input:focus-visible,select:focus-visible,
.item:focus-visible,.tab:focus-visible{outline:2px solid var(--patina);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* ---------- tabs ---------- */
.head-left{display:flex;align-items:baseline;gap:16px;min-width:0}
.tabs{display:inline-flex;gap:14px;flex:none}
.tab{background:none;border:none;border-bottom:2px solid transparent;color:var(--dim);cursor:pointer;
  font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.13em;text-transform:uppercase;
  padding:1px 0 3px}
.tab:hover{color:var(--paper)}
.tab.active{color:var(--brass);border-bottom-color:var(--brass)}

/* ---------- theory ---------- */
.theory{display:grid;gap:36px}
.theory-sec .block-head{margin-bottom:8px}
.theory-sub{font-size:12.5px;color:var(--dim);line-height:1.55;margin:0 0 16px;max-width:52ch}
.theory-group{margin-top:22px}
.theory-group-name{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--patina);margin:0 0 12px}
.diagram-grid{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:26px 22px}
.diagram{display:flex;flex-direction:column;align-items:center;gap:6px}
.diagram-title{font-family:var(--mono);font-size:11px;color:var(--paper);text-align:center;line-height:1.25}
.diagram-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.03em;color:var(--dim);text-align:center}
.fb{display:block;max-width:100%;height:auto}
.fb .gridline{stroke:var(--line);stroke-width:1}
.fb .dot{fill:var(--dot)}
.fb .dot.root{fill:var(--brass)}
.fb .deg{fill:var(--paper);font-family:var(--mono);font-size:8.5px;font-weight:500;
  text-anchor:middle;dominant-baseline:central}
.fb .deg.root{fill:var(--on)}
.fb .slabel{fill:var(--dim);font-family:var(--mono);font-size:8px;text-anchor:end;dominant-baseline:central}
.fb .mute{fill:var(--dim);font-family:var(--mono);font-size:12px;text-anchor:middle;dominant-baseline:central}

/* Chords: seventh-chord grip formula sits at the end of each section head. */
.chord-formula{color:var(--patina);font-size:11px;letter-spacing:.08em;white-space:nowrap;padding-left:2px}

/* Triads: each string set is a 3×3 matrix (quality rows × inversion columns). */
.triad-sets{display:grid;grid-template-columns:1fr;gap:32px;margin-top:4px}
.triad-set{min-width:0}
.triad-scroll{overflow-x:auto;padding-bottom:2px}
.triad-matrix{display:grid;grid-template-columns:auto repeat(3,auto);gap:10px 18px;
  align-items:center;justify-items:center;width:max-content}
.tm-head{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--patina)}
.tm-rowhead{font-family:var(--mono);font-size:11.5px;color:var(--paper);justify-self:end}

/* let the tab row wrap once there are several tabs */
.tabs{flex-wrap:wrap}

/* Phones: keep the title and settings button on the top row, and drop the tabs
   onto their own full-width line beneath — otherwise the extra tabs stretch the
   header and run under the settings button. */
@media (max-width:560px){
  .head{align-items:flex-start}
  .head-left{flex:1;flex-wrap:wrap;align-items:center;row-gap:12px}
  .head-left .tabs{flex-basis:100%;gap:16px}
}

/* ---------- fifths (circle of fifths) ---------- */
.fifths-wrap{display:flex;justify-content:center;margin:4px 0 24px}
.cof{width:100%;max-width:440px;height:auto;display:block}
.cof text{text-anchor:middle;dominant-baseline:central;pointer-events:none}
.cof .seg{cursor:pointer;stroke:var(--line);stroke-width:1.5;transition:fill .12s}
.cof .seg.maj{fill:var(--case)}
.cof .seg.min{fill:var(--ink)}
.cof .seg:hover{fill:rgba(191,94,58,.12)}
.cof .seg.on.maj{fill:rgba(191,94,58,.17)}
.cof .seg.on.min{fill:rgba(191,94,58,.1)}
.cof .seg.tonic{fill:rgba(191,94,58,.34);stroke:var(--brass);stroke-width:2}
.cof-name{font-family:var(--cond);font-size:15px;font-weight:600;fill:var(--paper)}
.cof-name-min{font-size:12px;fill:var(--patina)}
.cof-alt{font-family:var(--mono);font-size:7.5px;fill:var(--dim)}
.cof-roman{font-family:var(--mono);font-size:11px;font-weight:500;fill:var(--brass)}
.cof-hub{fill:var(--case);stroke:var(--line);stroke-width:1.5}
.cof-center-key{font-family:var(--cond);font-size:30px;font-weight:600;fill:var(--paper)}
.cof-center-sub{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;fill:var(--dim)}
.cof-center-sig{font-family:var(--mono);font-size:9px;fill:var(--patina)}

.fifths-legend{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.chip{display:inline-flex;align-items:baseline;gap:7px;padding:6px 12px;border:1px solid var(--line);
  border-radius:5px;background:var(--case)}
.chip-roman{font-family:var(--mono);font-size:10px;color:var(--patina);letter-spacing:.05em;min-width:26px}
.chip-name{font-family:var(--cond);font-size:16px;font-weight:600;color:var(--paper)}
.chip.tonic{border-color:var(--brass);background:rgba(191,94,58,.14)}
.chip.dim{border-style:dashed}

/* ---------- keys (major scales chart) ---------- */
.keys-scroll{overflow-x:auto;padding-bottom:2px}
.keys-table{border-collapse:collapse;font-family:var(--mono);font-size:13px;min-width:520px}
.keys-table th,.keys-table td{border:1px solid var(--line);padding:7px 12px;text-align:center;
  background:var(--case);color:var(--paper);white-space:nowrap}
.keys-table thead th{background:var(--ink);color:var(--patina);font-size:11px;font-weight:500;
  letter-spacing:.08em}
.keys-table .kt-key{text-align:left;font-family:var(--cond);font-size:14px;font-weight:600;background:var(--ink)}
.keys-table .kt-fifth{background:rgba(191,94,58,.15)}
.keys-table thead .kt-fifth{background:rgba(191,94,58,.24);color:var(--paper)}