:root { --bg: #f6f5f1; --card: #fff; --ink: #1d1f23; --muted: #6b6f76; --line: #e4e2dc; --accent: #4d1821; --accent-ink: #fff; --fill: #4d1821; --fill-ink: #fff; }
@media (prefers-color-scheme: dark) { :root { --bg: #16181c; --card: #20232a; --ink: #eceae6; --muted: #9aa0a8; --line: #30343c; --accent: #f0a3b3; --accent-ink: #1f0a10; --fill: #a34a60; --fill-ink: #fff; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif; }
main { max-width: 440px; margin: 0 auto; padding: 48px 16px; }
nav#tabs { position: fixed; left: 0; right: 0; bottom: 0; z-index: 10; display: flex; justify-content: center; gap: 4px; padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); background: var(--card); border-top: 1px solid var(--line); }
nav#tabs[hidden] { display: none; }
#top-btns { position: fixed; top: calc(10px + env(safe-area-inset-top, 0px)); right: max(12px, env(safe-area-inset-right, 0px), calc(50% - 204px)); z-index: 10; display: flex; gap: 6px; }
#top-btns[hidden] { display: none; }
#top-btns button { width: 40px; height: 40px; margin: 0; padding: 0; display: grid; place-items: center; border-radius: 999px; background: var(--card); border: 1px solid var(--line); color: var(--accent); }
#top-btns svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
#toast { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(76px + env(safe-area-inset-bottom, 0px)); z-index: 12; width: min(408px, calc(100% - 32px)); box-sizing: border-box; padding: 12px 16px; border-radius: 14px; background: var(--ink); color: var(--bg); font-size: 15px; box-shadow: 0 6px 24px rgba(0,0,0,.25); }
#toast[hidden] { display: none; }
#preview-bar { position: sticky; top: 0; z-index: 11; display: flex; gap: 8px; align-items: center; justify-content: center; flex-wrap: wrap; padding: 8px 12px; background: #b3541e; color: #fff; font-size: 14px; }
#preview-bar[hidden] { display: none; }
#preview-bar button { width: auto; margin: 0; padding: 6px 12px; font-size: 14px; background: #fff; color: #1c1b1f; border: 0; }
nav#tabs button { flex: 1; max-width: 76px; margin: 0; padding: 9px 2px; font-size: 13px; border: 0; background: none; color: var(--muted); border-radius: 10px; }
nav#tabs button.on { color: var(--accent); font-weight: 700; }
nav#tabs button.add { background: var(--fill); color: var(--fill-ink); font-weight: 600; }
body.has-tabs main { padding-bottom: calc(100px + env(safe-area-inset-bottom)); }
h1 { font-size: 24px; margin: 0 0 6px; }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; margin-top: 18px; }
button { display: block; width: 100%; font: inherit; padding: 13px 16px; margin-top: 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); color: var(--ink); cursor: pointer; }
button.primary { background: var(--fill); color: var(--fill-ink); border-color: var(--fill); font-weight: 600; }
.msg { margin-top: 12px; min-height: 1.4em; }
.ai-note { font-size: 13px; color: var(--muted); margin: 10px 0 0; }
ul.flags { list-style: none; padding: 0; margin: 8px 0; }
ul.flags li { padding: 6px 0 6px 10px; border-left: 3px solid var(--line); margin: 4px 0; }
ul.flags li.late { border-left-color: #b3261e; }
ul.flags li.soon { border-left-color: #b26a00; }
label.f { display: block; margin-top: 12px; font-weight: 600; font-size: 15px; }
select, textarea, input.f { display: block; width: 100%; box-sizing: border-box; font: inherit; margin-top: 6px; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
textarea { min-height: 110px; }
details.faq { margin-top: 10px; }
details.faq summary { cursor: pointer; font-weight: 600; }
.report { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }
.report .when { font-size: 13px; color: var(--muted); }
.kinds label { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; border-top: 1px solid var(--line); font-weight: 400; }
.kinds label:first-child { border-top: 0; }
.kinds small { display: block; color: var(--muted); font-size: 14px; }
a { color: var(--accent); }   /* readable in dark mode everywhere (Learn links were dark blue on dark) */
a.btn { display: block; text-align: center; text-decoration: none; font: inherit; padding: 13px 16px; margin-top: 10px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); color: var(--ink); }
button.danger { background: #8f1d2c; color: #fff; border-color: #8f1d2c; font-weight: 600; }
.sd-head { display: flex; align-items: center; gap: 12px; margin: 0 0 6px; font-size: 34px; }
.sd-head .sd-icon { width: 40px; height: 40px; }

.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row > button { width: auto; flex: 1 1 auto; }
.row > button.chip { flex: 0 0 auto; margin-top: 0; }
.copy { font-size: 14px; }
.ev label { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; }
.spread { justify-content: space-between; }
.chip { display: inline-block; width: auto; padding: 8px 12px; margin: 6px 6px 0 0; border-radius: 999px; font-size: 15px; }
.link { background: none; border: 0; color: var(--accent); width: auto; padding: 6px 0; text-align: left; }
.now h2 { font-size: 22px; margin: 4px 0; }
.tight { margin: 4px 0; }
.small { font-size: 14px; }
.lrow { display: flex; gap: 12px; text-align: left; border: 0; border-top: 1px solid var(--line); border-radius: 0; margin: 0; padding: 10px 0; background: none; }
.lrow:first-child { border-top: 0; }
.lrow small { display: block; color: var(--muted); }
.when { min-width: 74px; color: var(--muted); font-size: 14px; }
.agenda { list-style: none; padding: 0; margin: 6px 0 0; }
.agenda li { display: flex; gap: 12px; padding: 4px 0; }
.agenda b { min-width: 52px; }
.steps label { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; border-top: 1px solid var(--line); }
.steps label:first-child { border-top: 0; }
.steps small { display: block; color: var(--muted); }
input, select, textarea { font: inherit; width: 100%; box-sizing: border-box; padding: 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); margin-top: 4px; }
input[type=checkbox] { width: auto; margin-top: 4px; }
label.f { display: block; margin-top: 12px; font-size: 15px; color: var(--muted); }
.first { border-left: 4px solid var(--accent); padding-left: 12px; }
.stepedit { border-top: 1px solid var(--line); padding: 6px 0; }
.stepedit:first-child { border-top: 0; }
.stepedit .row label.f { margin-top: 4px; }
input.days { width: 90px; flex: 0 0 auto; }

.flip { min-height: 150px; display: flex; flex-direction: column; justify-content: center; }
.flip .front { font-size: 21px; font-weight: 600; }
.flip .back { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.grades { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.grades button { margin-top: 0; }
.setrow { display: flex; justify-content: space-between; gap: 12px; text-align: left; }
.setrow small { display: block; color: var(--muted); }
.pill { display: inline-block; font-size: 13px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.scheme { margin: 8px 0 0; padding-left: 20px; }
.timer { font-variant-numeric: tabular-nums; font-size: 28px; font-weight: 700; text-align: center; margin-top: 8px; }
.checkline { border-left: 4px solid var(--accent); padding-left: 10px; margin-top: 8px; }
button.bigbtn { font-size: 19px; padding: 16px; margin-top: 14px; }
.center { text-align: center; }
.subj-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.subj-grid button { margin-top: 0; }
.picked { justify-content: space-between; margin: 8px 0; }
.setrow.nextnew { border-color: var(--accent); }
details.card summary { cursor: pointer; }
.wrongform { margin-top: 6px; }
button.link.small { font-size: 14px; margin-top: 8px; }
.answer { margin-top: 8px; }
.match { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
.match button { text-align: left; margin-top: 6px; overflow-wrap: anywhere; }

.hello { font-size: 22px; font-weight: 700; margin: 6px 0 0; }
.card.next .big, .card .big { font-size: 20px; font-weight: 700; margin: 6px 0; }
button.card.wins { text-align: left; }
.wins-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
details.earlier summary { cursor: pointer; font-weight: 600; }
details.earlier .first { margin-top: 14px; }
details.pack { margin-top: 10px; }
details.pack summary { cursor: pointer; font-weight: 600; }
details.pack ul { margin: 8px 0; padding-left: 20px; }
details.pack li { margin: 4px 0; }
details.plan ul { list-style: none; padding: 0; margin: 8px 0 0; }
details.plan li { display: flex; gap: 10px; align-items: baseline; padding: 8px 0; border-bottom: 1px solid var(--line); }
details.plan li:last-child { border-bottom: 0; }
details.plan li > span:nth-child(2) { flex: 1; min-width: 0; }
details.plan .t { font-variant-numeric: tabular-nums; color: var(--muted); min-width: 3.2em; }
.tick { font-size: 14px; color: var(--muted); white-space: nowrap; }
.tick.done { color: var(--accent); font-weight: 600; }
details.week .first { margin-top: 12px; }
.part-pick button { flex: 1 1 70px; }
.center { text-align: center; }
.row { display: flex; flex-wrap: wrap; gap: 10px; }
.row > button { flex: 1 1 140px; width: auto; }
.tabs { margin-top: 10px; }
ul.chosen, ul.todo { list-style: none; padding: 0; margin: 10px 0 0; }
ul.chosen li { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line); }
ul.chosen li button.link, ul.todo li button.link { width: auto; margin: 0; }
ul.todo li { padding: 4px 0; }
.small { font-size: 14px; }
.task { white-space: pre-wrap; }
ol.steps-i { margin: 8px 0; padding-left: 22px; }
ol.steps-i li { margin: 6px 0; }
input[type=file] { display: block; margin-top: 8px; font: inherit; }
details.fold { margin-top: 10px; border-top: 1px solid var(--line); padding-top: 8px; }
details.fold summary, details.more summary { cursor: pointer; font-weight: 600; padding: 6px 0; }
details.more { margin-top: 10px; }
.row.quick > button { flex: 1 1 90px; margin-top: 6px; }
.card.sent .setrow { margin-top: 8px; }
.reply { border-left: 3px solid var(--accent); padding-left: 10px; margin: 8px 0; }
button[hidden] { display: none; }
.row[hidden] { display: none; }
.card.check .ck { border-top: 1px solid var(--line); padding-top: 10px; }
.card.check .ck:first-of-type { border-top: 0; }


label.check { display: flex; align-items: center; gap: 10px; padding: 6px 0; }
button small { display: block; font-weight: 400; color: var(--muted); font-size: 14px; margin-top: 2px; }
button.link.inline { display: inline; width: auto; padding: 0; margin: 0; }


:root[data-colour="deep"] { --accent: #4d1821; --fill: #4d1821; }
:root[data-colour="burgundy"] { --accent: #6E1A2B; --fill: #6E1A2B; }
:root[data-colour="green"] { --accent: #1f5a43; --fill: #1f5a43; }
@media (prefers-color-scheme: dark) { :root[data-colour="green"] { --accent: #8fd3b4; --fill: #2d7a5b; } :root[data-colour="burgundy"], :root[data-colour="deep"] { --accent: #f0a3b3; --fill: #a34a60; } }
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 10px 0; }
.stats div { background: var(--bg); border-radius: 12px; padding: 12px; }
.stat { display: block; font-size: 24px; font-weight: 700; }
.stats small { color: var(--muted); }
.bubble { padding: 12px 14px; border-radius: 16px; margin-top: 10px; white-space: pre-wrap; max-width: 92%; }
.bubble.me { background: var(--fill); color: var(--fill-ink); margin-left: auto; }
.bubble.claude { background: var(--card); border: 1px solid var(--line); }
.clock { font-size: 56px; font-weight: 700; text-align: center; font-variant-numeric: tabular-nums; padding: 18px 0; }
.win-line { margin: 8px 0 0; font-weight: 600; }
ul.miles { list-style: none; padding: 0; margin: 6px 0 0; }
ul.miles li { padding: 6px 0; border-bottom: 1px solid var(--line); }
ul.miles li:last-child { border-bottom: 0; }
.bar { height: 8px; background: var(--bg); border-radius: 8px; overflow: hidden; margin: 6px 0 12px; }
.bar span { display: block; height: 100%; width: 0; background: var(--fill); border-radius: 8px; }
button.listen { display: inline-block; width: auto; padding: 6px 12px; margin: 6px 0 0; font-size: 15px; }


.reveal { width: auto; display: inline-block; margin: 8px 8px 0 0; }
.reveal.gap { padding: 2px 10px; margin: 0; }
.revealed { margin-top: 6px; }
ul.mm { list-style: none; padding-left: 14px; border-left: 2px solid var(--line); }
ul.mm li { margin: 6px 0; }
ul.tl { list-style: none; padding: 0; } ul.tl li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.opts { display: flex; flex-direction: column; gap: 8px; } .opts button { margin: 0; text-align: left; }
.opts button.right { background: #e3f2e8; border-color: #2f6b3a; } .opts button.wrong { background: #f8e3e3; border-color: #8f1d2c; }
.cornell { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 12px; }
.caption { color: var(--muted); }
.slide { min-height: 180px; display: flex; flex-direction: column; justify-content: center; }
.slide.title .big { font-size: 1.4em; }
.slide .answer { font-weight: 600; }
progress.watch-bar { width: 100%; height: 6px; accent-color: var(--accent); }
.watch-ctl { justify-content: space-between; }
.watch-ctl button { flex: 0 0 auto; width: auto; min-width: 56px; }
.watch-ctl button.primary { flex: 1; }