/* Mendday — one stylesheet.
   The page is a logbook: ruled rather than carded, with the data set in a
   monospace so day counts, scores and deltas line up in columns.

   Light is defined on bare :root; dark redefines only the tokens, guarded so
   an explicit light choice always beats a dark system preference. */

:root {
  --ground: #E8EAE6;
  --surface: #F6F7F4;
  --surface-2: #DFE3DD;
  --ink: #13181A;
  --ink-2: #4C5457;
  --ink-3: #828A8B;
  --rule: #CFD5CF;
  --rule-2: #B4BCB4;
  --accent: #12544A;
  --accent-ink: #F6F7F4;
  --accent-soft: #D8E3DF;
  --signal: #96650F;
  --signal-soft: #EDE2CB;
  --good: #2F6B4A;
  --radius: 3px;
  --display: "Spectral", ui-serif, Georgia, "Times New Roman", serif;
  --body: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #101413;
    --surface: #171C1B;
    --surface-2: #212827;
    --ink: #E6EAE6;
    --ink-2: #A6AFAD;
    --ink-3: #77817F;
    --rule: #262E2C;
    --rule-2: #364240;
    --accent: #5FA99B;
    --accent-ink: #0C110F;
    --accent-soft: #172825;
    --signal: #C79A3E;
    --signal-soft: #271F10;
    --good: #6FB088;
  }
}

:root[data-theme="dark"] {
  --ground: #101413;
  --surface: #171C1B;
  --surface-2: #212827;
  --ink: #E6EAE6;
  --ink-2: #A6AFAD;
  --ink-3: #77817F;
  --rule: #262E2C;
  --rule-2: #364240;
  --accent: #5FA99B;
  --accent-ink: #0C110F;
  --accent-soft: #172825;
  --signal: #C79A3E;
  --signal-soft: #271F10;
  --good: #6FB088;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 92px;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.012em;
  text-wrap: balance;
}
h1 { font-size: clamp(1.95rem, 5.2vw, 2.7rem); }
h2 { font-size: clamp(1.35rem, 3.6vw, 1.75rem); }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); }

.wrap { max-width: 660px; margin: 0 auto; padding: 26px 20px 48px; }
.muted { color: var(--ink-2); }
.dim { color: var(--ink-3); }
.small { font-size: .875rem; }
.tiny { font-size: .76rem; }
.center { text-align: center; }
.stack { display: flex; flex-direction: column; gap: 0; }
.row { display: flex; gap: 10px; align-items: center; }
.spread { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.hide { display: none !important; }
.scroll-x { overflow-x: auto; }

/* Uppercase mono micro-label — the logbook's field headings. */
.eyebrow {
  font-family: var(--mono);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-weight: 500;
  color: var(--ink-3);
}

/* ---------- ruled blocks, not floating cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.card + .card { margin-top: -1px; }   /* rules meet rather than double up */
.card-tight { padding: 15px 18px; }

/* ---------- buttons ---------- */
button { font: inherit; cursor: pointer; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: var(--radius);
  border: 1px solid var(--accent);
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--mono);
  font-size: .8rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .09em;
  transition: opacity .12s ease;
}
.btn:hover { opacity: .88; }
.btn[disabled] { opacity: .34; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--ink-2); border-color: var(--rule-2); }
.btn-quiet { background: transparent; color: var(--ink-3); border-color: transparent; padding: 12px 10px; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: 10px; align-items: center; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 2px; }

/* ---------- quiz ---------- */
.progressbar { height: 2px; background: var(--rule); overflow: hidden; }
.progressbar > i { display: block; height: 100%; background: var(--accent); transition: width .35s ease; }

.q { margin: 30px 0; }
.q-text { font-family: var(--display); font-size: 1.22rem; line-height: 1.32; margin-bottom: 14px; }
.q-note {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .06em;
  color: var(--ink-3); margin: -8px 0 12px;
}

.opt {
  display: block; width: 100%; text-align: left;
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 13px 15px; margin-bottom: -1px;
  color: var(--ink); position: relative;
  transition: background .12s ease, border-color .12s ease;
}
.opt:hover { border-color: var(--rule-2); z-index: 1; }
.opt[aria-pressed="true"] {
  border-color: var(--accent); background: var(--accent-soft); z-index: 2;
}
.opt-label { font-weight: 500; }
.opt-note { display: block; color: var(--ink-3); font-size: .83rem; margin-top: 1px; }

.scale { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; }
.scale button {
  border: 1px solid var(--rule); background: var(--surface); color: var(--ink-2);
  border-radius: 0; padding: 12px 3px 9px; text-align: center;
  margin-right: -1px; position: relative;
  transition: background .12s ease, border-color .12s ease;
}
.scale button:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.scale button:last-child { border-radius: 0 var(--radius) var(--radius) 0; margin-right: 0; }
.scale button:hover { border-color: var(--rule-2); z-index: 1; }
.scale button[aria-pressed="true"] {
  border-color: var(--accent); background: var(--accent-soft); color: var(--ink); z-index: 2;
}
.scale b {
  display: block; font-family: var(--mono); font-weight: 500;
  font-size: 1rem; font-variant-numeric: tabular-nums;
}
.scale span { display: block; font-size: .62rem; line-height: 1.25; margin-top: 3px; color: var(--ink-3); }

input[type="text"], textarea {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 12px 14px; resize: vertical;
}
input[type="text"]:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { min-height: 118px; line-height: 1.55; }

/* ---------- the day's entries ---------- */
.task {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 15px 17px; margin-bottom: -1px;
  position: relative;
  transition: opacity .18s ease;
}
.task:hover { z-index: 1; }
.task.done { opacity: .5; }
.task.done .task-title { text-decoration: line-through; text-decoration-thickness: 1px; }
.tick {
  flex: 0 0 22px; width: 22px; height: 22px; margin-top: 3px;
  border-radius: var(--radius); border: 1px solid var(--rule-2);
  background: transparent; color: transparent;
  display: grid; place-items: center; font-size: .72rem; line-height: 1;
  transition: all .15s ease;
}
.tick:hover { border-color: var(--accent); }
.task.done .tick { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.task-body { flex: 1; min-width: 0; }
.task-title { font-weight: 600; font-size: 1rem; }
.task-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 5px; }
.chip {
  font-family: var(--mono); font-size: .64rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: .11em;
  color: var(--ink-3);
}
.chip-anchor { color: var(--signal); }
.chip-reflect { color: var(--accent); }
.task-detail { color: var(--ink-2); font-size: .9rem; margin-top: 5px; }
.task-journal { margin-top: 12px; }
.saved { color: var(--good); font-size: .76rem; }

/* ---------- measurements ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.stat {
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 14px 10px; text-align: center;
  margin-right: -1px;
}
.stat:last-child { margin-right: 0; }
.stat b {
  display: block; font-family: var(--mono); font-weight: 500;
  font-size: 1.5rem; line-height: 1.1; font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.stat span {
  font-family: var(--mono); font-size: .62rem; text-transform: uppercase;
  letter-spacing: .1em; color: var(--ink-3);
}

.bars { display: grid; gap: 0; }
.bar-row {
  display: grid; grid-template-columns: 112px 1fr 46px; gap: 12px;
  align-items: center; font-size: .84rem;
  padding: 7px 0; border-bottom: 1px solid var(--rule);
}
.bar-row:last-child { border-bottom: 0; }
.bar { height: 6px; background: var(--surface-2); position: relative; border-radius: 1px; }
.bar > i { display: block; height: 100%; background: var(--accent); border-radius: 1px; transition: width .5s ease; }
.bar > u {
  position: absolute; top: -3px; width: 1px; height: 12px;
  background: var(--ink-3);
}
.bar-val {
  text-align: right; color: var(--ink-2);
  font-family: var(--mono); font-size: .8rem; font-variant-numeric: tabular-nums;
}
.bar-key { color: var(--ink-2); }
.bar-row.key .bar-key { color: var(--ink); font-weight: 600; }
.bar-row.key .bar > i { background: var(--signal); }

/* ---------- the arc ---------- */
.phase { border-left: 1px solid var(--rule-2); padding: 0 0 24px 20px; position: relative; }
.phase:last-child { padding-bottom: 0; }
.phase::before {
  content: ""; position: absolute; left: -4px; top: 6px;
  width: 7px; height: 7px;
  background: var(--ground); border: 1px solid var(--rule-2);
}
.phase.now { border-left-color: var(--signal); }
.phase.now::before { background: var(--signal); border-color: var(--signal); }
.phase.past::before { background: var(--rule-2); }
.phase h3 { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.phase h3 .dim {
  font-family: var(--mono); font-size: .68rem !important;
  text-transform: uppercase; letter-spacing: .1em;
}
.ms { list-style: none; padding: 0; margin: 12px 0 0; }
.ms li {
  position: relative; padding-left: 18px; margin-bottom: 6px;
  font-size: .88rem; color: var(--ink-2);
}
.ms li::before { content: "·"; position: absolute; left: 4px; color: var(--rule-2); font-weight: 700; }

/* ---------- navigation ---------- */
.nav {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 20;
  display: flex; justify-content: center; gap: 0;
  background: var(--surface);
  border-top: 1px solid var(--rule);
  padding: 7px 8px calc(7px + env(safe-area-inset-bottom));
}
.nav button {
  flex: 1; max-width: 116px; background: none; border: 0;
  color: var(--ink-3); padding: 6px 4px; border-radius: var(--radius);
  font-family: var(--mono); font-size: .63rem;
  text-transform: uppercase; letter-spacing: .1em; font-weight: 500;
}
.nav button[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }
.nav i { display: block; font-size: 1rem; font-style: normal; margin-bottom: 2px; }

/* ---------- misc ---------- */
.note {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 2px solid var(--signal);
  border-radius: var(--radius);
  padding: 15px 17px; font-size: .88rem; color: var(--ink-2);
}
.note strong { color: var(--ink); }
.divider { height: 1px; background: var(--rule); margin: 30px 0; border: 0; }
.jentry { border-bottom: 1px solid var(--rule); padding: 15px 0; }
.jentry:last-child { border-bottom: 0; }
.jentry pre { white-space: pre-wrap; font: inherit; margin: 5px 0 0; color: var(--ink-2); }
.jentry .tiny {
  font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em;
}

.toast {
  position: fixed; left: 50%; bottom: 100px; transform: translateX(-50%) translateY(6px);
  background: var(--ink); color: var(--ground);
  padding: 9px 16px; border-radius: var(--radius);
  font-family: var(--mono); font-size: .72rem;
  text-transform: uppercase; letter-spacing: .1em;
  opacity: 0; pointer-events: none; transition: all .22s ease; z-index: 40;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (min-width: 720px) {
  body { padding-bottom: 40px; }
  .nav {
    position: sticky; top: 0; bottom: auto;
    border-top: 0; border-bottom: 1px solid var(--rule);
    padding: 9px 8px; gap: 2px;
  }
  .nav i { display: none; }
  .nav button { padding: 8px 15px; max-width: none; flex: 0 0 auto; }
  .toast { bottom: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- reading ---------- */
.chip-learn { color: var(--signal); }
.task-learn { border-left: 2px solid var(--signal); }

.lesson-body {
  margin-top: 14px; padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: .93rem; color: var(--ink-2);
}
.lesson-body p { margin: 0 0 .9em; }
.lesson-body p:last-child { margin-bottom: 0; }
.lesson-body strong { color: var(--ink); font-weight: 600; }
.lesson-practice {
  background: var(--surface-2); border-radius: var(--radius);
  padding: 11px 13px; font-size: .88rem;
}

.lessons { display: flex; flex-direction: column; }
.lesson-row {
  border: 1px solid var(--rule); border-radius: var(--radius);
  background: var(--surface); margin-bottom: -1px; position: relative;
}
.lesson-row.open { z-index: 2; border-color: var(--rule-2); }
.lesson-row .lesson-body { margin: 0 17px 16px; }
.lesson-head {
  display: grid; grid-template-columns: 22px 1fr auto; gap: 12px;
  align-items: baseline; width: 100%; text-align: left;
  background: none; border: 0; color: var(--ink);
  padding: 14px 17px;
}
.lesson-head:hover .lesson-title { color: var(--accent); }
.lesson-day {
  font-family: var(--mono); font-size: .8rem; color: var(--signal);
}
.lesson-main { display: block; min-width: 0; }
.lesson-title { display: block; font-weight: 600; font-size: .97rem; }
.lesson-dek { display: block; color: var(--ink-3); font-size: .85rem; margin-top: 2px; }
.lesson-meta {
  font-family: var(--mono); font-size: .66rem; text-transform: uppercase;
  letter-spacing: .09em; color: var(--ink-3); white-space: nowrap;
}

.autosave { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--rule); }