* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--kl-page); scrollbar-gutter: stable; }
body { margin: 0; color: var(--kl-fg); font: 16px/1.55 var(--kl-sans); }
a { color: var(--kl-accent); }
h1 { font-size: 28px; line-height: 1.2; margin: 0 0 6px; letter-spacing: -.01em; }
h2 { font-size: 17px; margin: 0 0 6px; }
.muted { color: var(--kl-fg-2); }
.small { font-size: 13px; }
.lede { color: var(--kl-fg-2); margin: 0 0 18px; }

/* top bar */
.top { background: var(--kl-bg); border-bottom: 1px solid var(--kl-line); position: sticky; top: 0; z-index: 2; }
.top-inner { max-width: 1180px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 24px; }
.logo { text-decoration: none; font-weight: 800; font-size: 18px; color: var(--kl-fg); }
.logo b { color: var(--kl-fg); font-size: 20px; margin-right: 2px; }
.logo { display: flex; align-items: center; gap: 8px; }
.logo .mark { width: 28px; height: 28px; }
nav { display: flex; gap: 2px; flex-wrap: wrap; }
nav button {
  font: 600 14px var(--kl-sans); border: 0; background: none; color: var(--kl-fg-2);
  padding: 8px 12px; border-radius: 999px; cursor: pointer;
}
nav button:hover { color: var(--kl-fg); }
nav button.active { background: var(--kl-bg-2); color: var(--kl-fg); }
.nav-count { display: inline-block; min-width: 20px; padding: 1px 6px; border-radius: 999px; background: var(--kl-accent); color: var(--kl-accent-fg); font-size: 12px; text-align: center; }
.nav-count:empty { display: none; }

main { max-width: 820px; margin: 0 auto; padding: 32px 20px 80px; }
main .kl-btn { min-height: 36px; font-size: 14px; padding: 0 16px; }
main .kl-btn.big { min-height: 46px; font-size: 15px; padding: 0 24px; }
.form label.kl-btn { display: inline-flex; margin: 0; font-size: 14px; } /* a button-styled <label> (file picker) shouldn't take form-label layout */
.page-head { margin-bottom: 18px; }
.card { background: var(--kl-bg); border: 1px solid var(--kl-line); border-radius: var(--kl-radius); padding: 22px 24px; }

/* home */
.hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 20px; }
.hero-label { font-size: 15px; color: var(--kl-fg-2); }
.hero-value { font-size: 56px; font-weight: 700; line-height: 1.05; letter-spacing: -.02em; }
.hero-delta { font-size: 14px; color: var(--kl-accent); font-weight: 600; margin-top: 4px; }
.hero-delta:empty { display: none; }
.tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--kl-bg); border: 1px solid var(--kl-line); border-radius: var(--kl-radius); padding: 14px 16px; }
.tile-label { font-size: 13px; color: var(--kl-fg-2); }
.tile-value { font-size: 26px; font-weight: 700; line-height: 1.2; margin-top: 2px; }
.tile-sub { font-size: 12px; color: var(--kl-fg-3); }
.ask { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 16px; }
.ask h2 { margin-bottom: 4px; }
.ask p { margin: 0; max-width: 560px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.chart-card { padding: 18px 20px 14px; min-width: 0; }
.chart-card.wide { grid-column: 1 / -1; }
.chart-card h2 { font-size: 16px; margin-bottom: 2px; }
.chart-card .muted.small { margin: 0 0 10px; }

/* charts (single series; one validated green per mode) */
:root { --kl-chart: #1f7a45; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --kl-chart: #36a062; } }
:root[data-theme="dark"] { --kl-chart: #36a062; }
.chart { width: 100%; height: auto; display: block; overflow: visible; }
.chart .grid { stroke: var(--kl-line); stroke-width: 1; }
.play-mini { border: 1px solid var(--kl-line); background: var(--kl-bg); color: var(--kl-accent); border-radius: 999px; width: 26px; height: 26px; cursor: pointer; font-size: 11px; margin-right: 6px; }
.play-mini:hover { background: var(--kl-accent-soft); }
.item-meta { display: flex; align-items: center; }
.kl-btn.listen { margin: 10px 0 2px; }
.reverse-prompt { font-size: 22px; font-weight: 700; margin: 4px 0 14px; }
.cloze { display: inline-block; color: var(--kl-accent); border-bottom: 2px solid var(--kl-accent); padding: 0 4px; margin: 0 2px; letter-spacing: 2px; }
.update-note { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; padding: 10px 12px 10px 16px; border-radius: 12px; background: var(--kl-accent-soft); color: var(--kl-fg); }
.update-note a { color: var(--kl-accent); font-weight: 700; text-decoration: none; }
.update-note .kl-btn.icon { margin-left: auto; }
.chart .axis { fill: var(--kl-fg-3); font: 12px var(--kl-sans); }
.chart .axis.small { font-size: 10px; }
.chart .axis.strong { fill: var(--kl-fg); font-weight: 700; }
.chart .axis.label { fill: var(--kl-fg-2); font-size: 13px; }
.chart .value { fill: var(--kl-fg); font: 600 13px var(--kl-sans); }
.chart .fill { fill: var(--kl-chart); }
.chart .track { fill: var(--kl-bg-2); }
.chart .line { fill: none; stroke: var(--kl-chart); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .area { fill: var(--kl-chart); opacity: .1; }
.chart .dot { fill: var(--kl-chart); stroke: var(--kl-bg); stroke-width: 2; }
.chart .crosshair { stroke: var(--kl-fg-3); stroke-width: 1; }
.chart .hit { fill: transparent; cursor: default; }
.chart .mark:hover .fill, .chart .mark:focus .fill { filter: brightness(1.15); }
.chart .mark:focus { outline: none; }
.chart.heat .cell { stroke: var(--kl-bg); stroke-width: 0; }
.chart.heat .cell:hover, .chart.heat .cell:focus { stroke: var(--kl-fg); stroke-width: 1.5; outline: none; }
.chart.heat .l0 { fill: color-mix(in srgb, var(--kl-fg) 9%, var(--kl-bg)); } /* empty days: visible on white and on dark */
.chart.heat .l1 { fill: color-mix(in srgb, var(--kl-chart) 32%, var(--kl-bg)); }
.chart.heat .l2 { fill: color-mix(in srgb, var(--kl-chart) 50%, var(--kl-bg)); }
.chart.heat .l3 { fill: color-mix(in srgb, var(--kl-chart) 75%, var(--kl-bg)); }
.chart.heat .l4 { fill: var(--kl-chart); }
.chart-tip { position: fixed; z-index: 10; pointer-events: none; background: var(--kl-bg); border: 1px solid var(--kl-line); border-radius: 8px; box-shadow: var(--kl-shadow); padding: 7px 10px; }
.chart-tip-value { font-weight: 700; font-size: 15px; }
.chart-tip-label { font-size: 12px; color: var(--kl-fg-2); }
.chart-empty { color: var(--kl-fg-3); font-size: 14px; padding: 18px 0; }

/* review */
/* a flashcard: the sentence large and centered in a card that fits it, a little way down the page;
   the answer opens underneath, centered too, and the sentence stays where it was */
#review { padding-top: clamp(8px, 7vh, 72px); }
#review-stats { text-align: center; font-size: 14px; color: var(--kl-fg-3); margin-bottom: 14px; }
.review-card { padding: 52px 48px 46px; text-align: center; }
.card-kind { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-bottom: 18px; }
.card-tag { font-size: 12px; color: var(--kl-fg-2); background: var(--kl-bg-2); border: 1px solid var(--kl-line); border-radius: 999px; padding: 2px 9px; }
.front { font-size: 32px; line-height: 1.55; margin: 0; text-wrap: balance; word-break: keep-all; overflow-wrap: anywhere; }
.review-card { word-break: keep-all; } /* Korean breaks between words, not in the middle of one */
.hint { color: var(--kl-fg-3); margin: 0; }
.review-card hr { border: 0; border-top: 1px solid var(--kl-line); margin: 30px auto 26px; max-width: 520px; }
.target-line { display: flex; gap: 8px; align-items: center; justify-content: center; flex-wrap: wrap; }
.target-key { font-size: 26px; font-weight: 700; }
.back { font-size: 20px; font-weight: 600; margin: 6px 0 12px; }
.block { margin: 12px 0; }
.example { margin: 8px 0; color: var(--kl-fg-2); }
.example .kl-ko { color: var(--kl-fg); }
.user-note { background: var(--kl-bg-2); padding: 10px 14px; border-radius: 8px; }
.front.filled mark { animation: fill-in .3s ease-out; }
@keyframes fill-in { from { background: transparent; opacity: 0; } }
.filled-links { margin-top: 18px; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px; }
.filled-links .source { margin: 0; }
.translation { font-style: italic; color: var(--kl-fg-2, inherit); margin: 4px 0 10px; }
.sentence-words { display: inline-block; text-align: left; padding-left: 20px; margin: 4px 0 8px; font-size: 17px; }
.sentence-words li { margin: 4px 0; }
.source { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 18px; font-size: 14px; }
.review-card .source { justify-content: center; margin-top: 22px; }
.review-card .kl-morphs { justify-content: center; }
.review-card .user-note { text-align: left; }
.source a { text-decoration: none; }
.answers { display: flex; gap: 10px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }
.answers .kl-btn { display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 112px; padding: 12px 16px; font-size: 15px; border-radius: 12px; }
.answers .show { flex-direction: row; gap: 10px; min-width: 240px; justify-content: center; border-radius: 999px; }
.answers small { color: var(--kl-fg-3); font-weight: 500; font-size: 12px; }
kbd { font: 11px ui-monospace, monospace; color: var(--kl-fg-3); border: 1px solid var(--kl-line); border-radius: 4px; padding: 1px 5px; }
.answers .primary kbd { color: inherit; border-color: currentColor; opacity: .7; }
.empty { text-align: center; padding: 40px 10px; }
.empty .big { font-family: var(--kl-ko); font-size: 30px; font-weight: 700; margin-bottom: 8px; }
.empty p { color: var(--kl-fg-2); max-width: 460px; margin: 8px auto; }

/* toolbars */
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
input[type=search], input[type=text], input[type=number], input[type=date], select, textarea {
  font: 15px var(--kl-sans); color: var(--kl-fg); background: var(--kl-bg);
  border: 1px solid var(--kl-line); border-radius: 8px; padding: 8px 11px;
}
input[type=search] { flex: 1; min-width: 200px; }
#add-known { flex: 2; min-width: 240px; }
.toolbar.lib { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.toolbar.lib input[type=search] { grid-column: 1 / -1; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.filters button { font: 600 14px var(--kl-sans); min-height: 34px; border: 1px solid var(--kl-line); background: var(--kl-bg); color: var(--kl-fg-2); padding: 0 14px; border-radius: 999px; cursor: pointer; }
.toolbar select { min-height: 36px; }
.filters button.on { background: var(--kl-fg); border-color: var(--kl-fg); color: var(--kl-bg); }

.bulk { display: flex; gap: 10px; align-items: center; padding: 10px 14px; margin-bottom: 10px; background: var(--kl-bg-2); border-radius: var(--kl-radius); position: sticky; top: 62px; z-index: 1; }
.bulk span { font-weight: 600; margin-right: auto; }

/* library list */
.list { background: var(--kl-bg); border: 1px solid var(--kl-line); border-radius: var(--kl-radius); }
.item { border-top: 1px solid var(--kl-line); }
.item:first-child { border-top: 0; }
.item-main { display: grid; grid-template-columns: auto 1fr auto; gap: 4px 14px; align-items: start; padding: 14px 18px; cursor: pointer; }
.item-main:hover { background: color-mix(in srgb, var(--kl-bg-2) 50%, transparent); }
.item input[type=checkbox] { margin-top: 6px; width: 16px; height: 16px; accent-color: var(--kl-accent); }
.item-sentence { font-size: 17px; line-height: 1.55; }
.item-target { font-size: 14px; color: var(--kl-fg-2); margin-top: 2px; }
.item-target b { color: var(--kl-fg); font-family: var(--kl-ko); }
.item-meta { font-size: 13px; color: var(--kl-fg-3); text-align: right; white-space: nowrap; }
.item-meta .due { color: var(--kl-accent); font-weight: 600; }
.item-detail { padding: 0 18px 18px 48px; }
.item-detail label { display: grid; gap: 4px; font-size: 13px; color: var(--kl-fg-2); margin-top: 12px; }
.item-detail .kl-actions { margin-top: 14px; }
.item-detail textarea.kl-ko { font-size: 16px; line-height: 1.5; resize: vertical; }
.field-note { color: var(--kl-danger, #b42318); font-size: 12.5px; }
.field-note:empty { display: none; }
.empty-list { padding: 30px; text-align: center; color: var(--kl-fg-2); }

/* words */
.setup { margin-bottom: 28px; }
.setup .row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 12px 0 6px; }
h2.section { margin-top: 30px; }
.count { color: var(--kl-fg-3); font-weight: 500; }
.word-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.word {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--kl-bg); border: 1px solid var(--kl-line); border-radius: 999px;
  padding: 4px 6px 4px 12px; font-family: var(--kl-ko); font-size: 15px;
}
.word .meaning { font-family: var(--kl-sans); font-size: 12px; color: var(--kl-fg-3); max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.word button { border: 0; background: none; color: var(--kl-fg-3); cursor: pointer; font-size: 15px; line-height: 1; padding: 2px 5px; border-radius: 999px; }
.word button:hover { background: var(--kl-bg-2); color: var(--kl-danger); }
.word.todo { border-style: dashed; color: var(--kl-fg-2); }
.word .know:hover { color: var(--kl-accent); background: var(--kl-accent-soft); }
#known-view h3 { font-size: 15px; margin: 22px 0 6px; }
.kgroup { border: 1px solid var(--kl-line); border-radius: 12px; background: var(--kl-bg); margin: 8px 0; }
.kgroup summary { display: flex; align-items: center; gap: 12px; padding: 12px 16px; cursor: pointer; list-style: none; }
.kgroup summary::-webkit-details-marker { display: none; }
.kgroup summary::before { content: '›'; color: var(--kl-fg-3); transition: transform .15s; }
.kgroup[open] summary::before { transform: rotate(90deg); }
.kg-title { font-weight: 700; min-width: 175px; }
.kg-bar { flex: 0 1 260px; height: 8px; border-radius: 99px; background: var(--kl-bg-2); overflow: hidden; }
.kg-bar span { display: block; height: 100%; background: var(--kl-accent); border-radius: 99px; }
.kg-count { color: var(--kl-fg-3); font-size: 14px; margin-left: auto; }
.kgroup-body { padding: 0 16px 14px; }
.kg-sub { font-size: 13px; color: var(--kl-fg-3); margin-top: 10px; }
.word.learning { border-color: color-mix(in srgb, var(--kl-learning) 45%, var(--kl-line)); }

/* settings */
.form { margin-bottom: 16px; }
.form label { display: grid; gap: 6px; margin: 14px 0 0; font-size: 15px; }
.form label.check { display: flex; gap: 14px; align-items: center; justify-content: space-between; cursor: pointer; }
/* the checkbox is drawn as a toggle switch, on the right of its text */
.form label.check input { order: 2; flex: none; appearance: none; -webkit-appearance: none; margin: 0; width: 36px; height: 20px; border-radius: 999px; background: color-mix(in srgb, var(--kl-fg) 28%, var(--kl-bg)); position: relative; cursor: pointer; transition: background .15s; }
.form label.check input::after { content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, .3); transition: transform .15s; }
.form label.check input:checked { background: var(--kl-accent); }
.form label.check input:checked::after { transform: translateX(16px); }
.form label.check input:focus-visible { outline: 2px solid var(--kl-accent); outline-offset: 2px; }
.form label.check input:disabled { opacity: .5; cursor: default; }
@media (prefers-reduced-motion: reduce) { .form label.check input, .form label.check input::after { transition: none; } }
.form select { max-width: 460px; }
.form input[type=range] { max-width: 360px; accent-color: var(--kl-accent); }
.form input[type=number] { max-width: 110px; }
.form .kl-actions { margin-top: 14px; }
.fine { margin: 10px 0 2px; }
.danger-zone { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--kl-line); }
.danger-zone summary { cursor: pointer; width: max-content; font-size: 13.5px; color: var(--kl-fg-3); list-style: none; }
.danger-zone summary::-webkit-details-marker { display: none; }
.danger-zone summary:hover { color: var(--kl-danger, #b42318); }
.danger-zone .kl-actions { margin-top: 10px; }
.credits { margin: 28px 0 8px; text-align: center; line-height: 1.6; }
.credits p { margin: 2px 0; }
.credits a { color: inherit; }

@media (max-width: 640px) {
  .tiles { grid-template-columns: 1fr 1fr; }
  .grid { grid-template-columns: 1fr; }
  .hero-value { font-size: 44px; }
  .top-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  main { padding-top: 20px; }
  .review-card { padding: 22px 20px; }
  .front { font-size: 24px; }
  .review-card { padding: 34px 22px 30px; }
  .item-main { grid-template-columns: auto 1fr; }
  .item-meta { grid-column: 2; text-align: left; }
  .item-detail { padding-left: 18px; }
  .bulk { top: 100px; }
}

/* Learning: one row per word, closest to known first */
.lrows { border: 1px solid var(--kl-line); border-radius: 12px; background: var(--kl-bg); margin: 10px 0 6px; overflow: hidden; }
.lrow { display: grid; grid-template-columns: minmax(80px, max-content) 1fr 110px 28px; align-items: center; gap: 14px; padding: 9px 10px 9px 16px; border-top: 1px solid var(--kl-line); }
.lrow:first-child { border-top: 0; }
.lrow-key { font-size: 17px; font-weight: 600; }
.lrow-meaning { color: var(--kl-fg-2); font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lrow-progress .kg-bar { display: block; width: 100%; }
.lrow-x { border: 0; background: none; color: var(--kl-fg-3); cursor: pointer; font-size: 16px; border-radius: 999px; padding: 2px 6px; }
.lrow-x:hover { background: var(--kl-bg-2); color: var(--kl-danger); }
@media (max-width: 560px) { .lrow { grid-template-columns: auto 1fr 28px; } .lrow-progress { display: none; } }

/* Inside a group: switch between lists, a page at a time */
.kg-tabs { display: inline-flex; gap: 2px; padding: 3px; margin-top: 4px; background: var(--kl-bg-2); border-radius: 999px; }
.kg-tab { border: 0; background: none; font: 600 13px var(--kl-sans); color: var(--kl-fg-2); padding: 6px 14px; border-radius: 999px; cursor: pointer; }
.kg-tab.on { background: var(--kl-bg); color: var(--kl-fg); box-shadow: 0 1px 2px rgba(0, 0, 0, .08); }
.kg-more { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.welcome { border-color: color-mix(in srgb, var(--kl-accent) 35%, var(--kl-line)); background: color-mix(in srgb, var(--kl-accent-soft) 45%, var(--kl-bg)); margin-bottom: 20px; }
.welcome h2 { margin-top: 0; }
.welcome .row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

/* ---------- Jupjup's look, shared with getjupjup.com: Nunito headings, softer cards */
@font-face { font-family: 'Nunito'; src: url('../fonts/nunito.woff') format('woff'); font-weight: 600 900; font-display: swap; }
:root { --kl-display: 'Nunito', var(--kl-sans); --kl-radius: 14px; --kl-card-shadow: 0 1px 0 rgba(42, 36, 28, .03), 0 10px 26px -18px rgba(42, 36, 28, .28); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --kl-card-shadow: none; } }
:root[data-theme="dark"] { --kl-card-shadow: none; }
h1, .card h2, .section, .logo, .hero-value, .tile-value, .kg-title { font-family: var(--kl-display); }
h1 { font-weight: 800; }
.card, .tile, .kgroup, .lrows { box-shadow: var(--kl-card-shadow); }

/* Home: today */
.today { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding: 26px 28px; margin-bottom: 16px; }
.today .hero-value { font-size: 64px; font-weight: 900; margin-top: 2px; }
.today .hero-label { font-size: 15px; color: var(--kl-fg-2); margin-top: 2px; }
.today .hero-delta { margin-left: 6px; }
.today-side { display: grid; justify-items: center; gap: 6px; }
.today-time { font-size: 13px; color: var(--kl-fg-3); }
@media (max-width: 560px) { .today { flex-direction: column; align-items: stretch; text-align: center; } .today .hero-value { font-size: 52px; } }

/* Home: time with Korean today, words you keep running into */
.today-korean { font-size: 13px; color: var(--kl-fg-3); margin-top: 4px; }
.today-korean:empty { display: none; }
.running { margin-bottom: 16px; }
.rrow { display: flex; align-items: center; gap: 16px; padding: 12px 0; border-top: 1px solid var(--kl-line); }
.rrow:first-child { border-top: 0; }
.rrow-main { flex: 1; min-width: 0; }
.rrow-key { font-size: 18px; font-weight: 700; margin-right: 10px; }
.rrow-meaning { color: var(--kl-fg-2); font-size: 14px; }
.rrow-sentence { font-size: 15px; margin: 4px 0 2px; word-break: keep-all; overflow-wrap: anywhere; } /* Korean breaks at spaces, not mid-word */
.rrow-actions { display: flex; gap: 6px; flex: none; }
@media (max-width: 560px) { .rrow { flex-direction: column; align-items: stretch; } }
.rrow-x { border: 0; background: none; color: var(--kl-fg-3); cursor: pointer; font-size: 18px; line-height: 1; padding: 4px 8px; border-radius: 999px; align-self: center; }
.rrow-x:hover { background: var(--kl-bg-2); color: var(--kl-fg); }

/* Home on a wide screen: the main things on the left, the smaller charts on the right */
main:has(> #home:not([hidden])) { max-width: 1180px; } /* the header is always this wide, so it never shifts between pages */
.home-cols { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; margin-bottom: 16px; }
.col-main, .col-side { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; align-content: start; min-width: 0; } /* minmax: a long sentence can't stretch the column */
.home-cols .running { margin: 0; }
@media (min-width: 980px) { .home-cols { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); } }

/* a little (i) that explains a longer setting on hover or keyboard focus, right after its text */
.form label.check { justify-content: flex-start; gap: 8px; }
.form label.check input { margin-left: auto; }
.form label.check > span:first-of-type { flex: 0 1 auto; }
.tip { order: 1; flex: none; position: relative; display: inline-grid; place-items: center; width: 16px; height: 16px; margin: 0; border-radius: 50%; border: 1px solid var(--kl-line); color: var(--kl-fg-3); font: italic 600 11px/1 Georgia, serif; cursor: help; user-select: none; }
.tip:hover, .tip:focus-visible { color: var(--kl-fg); border-color: var(--kl-fg-3); outline: none; }
.tip::after { content: attr(data-tip); position: absolute; left: -8px; bottom: calc(100% + 8px); width: max-content; max-width: min(320px, 70vw); padding: 9px 12px; border-radius: 10px; background: var(--kl-fg); color: var(--kl-bg); font: 400 13px/1.45 system-ui, sans-serif; font-style: normal; text-align: left; box-shadow: 0 6px 20px rgba(0, 0, 0, .22); opacity: 0; pointer-events: none; transition: opacity .12s; z-index: 5; }
.tip:hover::after, .tip:focus-visible::after { opacity: 1; }
@media (prefers-reduced-motion: reduce) { .tip::after { transition: none; } }

/* Settings → Reviews: vacation mode after the fact — a quiet link under the switch that opens into a small panel */
.after-fact { margin: -2px 0 10px; font-size: 14px; }
.after-fact summary { list-style: none; cursor: pointer; color: var(--kl-fg-2); width: max-content; font-size: 13.5px; }
.after-fact summary::-webkit-details-marker { display: none; }
.after-fact summary::after { content: '›'; color: var(--kl-fg-3); display: inline-block; margin-left: 6px; transition: transform .15s; }
.after-fact[open] summary::after { transform: rotate(90deg); }
.after-fact summary:hover { color: var(--kl-accent); }
.after-fact[open] > :not(summary) { margin-left: 0; }
.after-fact[open] { padding: 12px 14px; margin-top: 4px; border: 1px solid var(--kl-line); border-radius: 12px; background: var(--kl-bg-2); }
.after-fact p { margin: 8px 0; }
.after-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 10px 0 4px; }
.after-row input[type=date] { width: auto; min-height: 36px; padding: 0 10px; }
.after-row .kl-btn:not(:disabled) { background: var(--kl-accent); border-color: var(--kl-accent); color: #fff; }
#vacation-preview:empty { display: none; }
@media (prefers-reduced-motion: reduce) { .after-fact summary::after { transition: none; } }