/* The study hour (js/ailp-hour.js): the hub at #hour, the floating clock and the home tile */
.hr-top { display: grid; grid-template-columns: auto 1fr; gap: 26px; align-items: center; margin: 14px 0 22px; }
.hr-ring { position: relative; width: 128px; height: 128px; }
.hr-ring svg { transform: rotate(-90deg); }
.hr-ring circle { fill: none; stroke-width: 10; }
.hr-track { stroke: var(--line); }
.hr-fill { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .6s ease; }
.hr-ring > span { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; line-height: 1.1; }
.hr-ring b { font-size: 1.9rem; }
.hr-ring small { display: block; color: var(--muted); font-size: .78rem; }
.hr-intro h1 { margin: 4px 0 8px; }
.hr-intro p { color: var(--muted); margin: 0 0 10px; }
.hr-intro .hr-next { color: var(--ink); }
.hr-intro .hr-last { color: var(--ink); background: var(--good-soft); border-radius: 10px; padding: 8px 12px; }
.hr-intro .actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hr-sum { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 0 0 24px; }
.hr-sum span { background: var(--card); box-shadow: var(--shadow); border-radius: 12px; padding: 10px; text-align: center; color: var(--muted); font-size: .86rem; }
.hr-sum b { display: block; color: var(--ink); font-size: 1.35rem; }
.hr-h { margin: 0 0 6px; }
.hr-key { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: .84rem; margin: 0 0 12px; }
.hr-key .k { display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; margin-right: 6px; font-style: normal; font-size: .72rem; border: 1.5px dashed var(--line); }
.hr-key .k.mastered { background: var(--good); border: 0; color: #fff; }
.hr-key .k.learning { border: 1.5px solid var(--accent); color: var(--accent); }
.hr-map { display: grid; gap: 10px; }
.hr-subject { background: var(--card); box-shadow: var(--shadow); border-radius: 14px; padding: 4px 14px; }
.hr-subject summary { display: grid; grid-template-columns: 1fr auto; grid-template-areas: "name count" "bar bar"; gap: 6px 12px; padding: 10px 0; cursor: pointer; list-style: none; }
.hr-subject summary::-webkit-details-marker { display: none; }
.hr-sname { grid-area: name; font-weight: 700; }
.hr-scount { grid-area: count; color: var(--muted); font-size: .88rem; }
.hr-scount b { color: var(--ink); }
.hr-bar { grid-area: bar; height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; }
.hr-bar span { display: block; height: 100%; background: var(--good); border-radius: 99px; }
.hr-chapter h4 { margin: 10px 0 4px; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.hr-chapter ul { list-style: none; margin: 0 0 8px; padding: 0; }
.hr-open { display: grid; grid-template-columns: 22px 1fr auto auto; align-items: center; gap: 10px; width: 100%; padding: 7px 4px; border: 0; border-bottom: 1px solid var(--line); background: none; color: inherit; font: inherit; text-align: left; cursor: pointer; }
.hr-open:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
.hr-tick { display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; border: 1.5px dashed var(--line); font-size: .74rem; }
.hr-topic.mastered .hr-tick { background: var(--good); border: 0; color: #fff; font-weight: 700; }
.hr-topic.learning .hr-tick { border: 1.5px solid var(--accent); color: var(--accent); }
.hr-tname { min-width: 0; }
.hr-topic.mastered .hr-tname { color: var(--muted); }
.hr-pips { display: inline-flex; gap: 3px; }
.hr-pips i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.hr-pips i.on { background: var(--good); }
.hr-xl { font-size: .72rem; border: 1px solid var(--line); border-radius: 4px; padding: 0 5px; color: var(--muted); }
.hr-check { color: var(--muted); font-size: .78rem; white-space: nowrap; }
.hr-how { margin: 22px 0 8px; color: var(--muted); }
.hr-how summary { cursor: pointer; color: var(--ink); font-weight: 600; }
/* the floating clock while an hour is running */
.hr-clock { position: fixed; right: 14px; bottom: 74px; z-index: 40; padding: 8px 14px; border-radius: 99px; background: var(--card); color: var(--ink); box-shadow: var(--shadow); border: 1.5px solid var(--accent); font-size: .84rem; font-weight: 600; text-decoration: none; }
.hr-clock.over { border-color: var(--good); background: var(--good-soft); }
/* home tile */
.hr-tile { display: grid; gap: 3px; padding: 14px 16px; border-radius: 14px; background: var(--card); box-shadow: var(--shadow); color: var(--ink); text-decoration: none; border-left: 4px solid var(--accent); }
.hr-tile:hover { transform: translateY(-1px); }
.hr-tile-k { font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); font-weight: 700; }
.hr-tile-s { color: var(--muted); font-size: .84rem; }
@media (max-width: 560px) {
  .hr-top { grid-template-columns: 1fr; justify-items: center; text-align: center; gap: 14px; }
  .hr-intro .actions { justify-content: center; }
  .hr-sum { grid-template-columns: repeat(2, 1fr); }
  .hr-open { grid-template-columns: 22px 1fr auto; }
  .hr-check { grid-column: 2 / -1; }
  .hr-clock { bottom: 70px; right: 10px; }
}
/* The study hour is the main way in: first and full width in the home row */
.home-tools > .hr-tile { order: -2; grid-column: 1 / -1; flex-basis: 100%; padding: 18px 20px; }
.home-tools > .hr-tile b { font-size: 1.1rem; }