/* ---------- Page header ---------- */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.page-head p { margin: 0; color: var(--text-2); }
.eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); font-weight: 600; margin-bottom: 4px; }

/* ---------- Cards & grid ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.card + .card { margin-top: 16px; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; }
.card-head h2, .card-head h3 { margin: 0; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 600px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } .grid-4 { gap: 10px; } .stat-value { font-size: 1.4rem; } }
.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.spacer { flex: 1; }
.section-gap { margin-top: 24px; }

/* ---------- Stat tiles ---------- */
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat-label { font-size: 12.5px; color: var(--text-2); }
.stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat-note { font-size: 12px; color: var(--text-3); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; font-weight: 550; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { filter: brightness(1.07); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--surface-2); }
.btn.danger { color: var(--bad); }
.btn.sm { padding: 4px 10px; font-size: 13px; }
.btn.lg { padding: 11px 20px; font-size: 16px; }
.btn.icon { padding: 6px 8px; }
.btn.good { background: var(--good-soft); border-color: transparent; color: var(--good); }
.btn.warn { background: var(--warn-soft); border-color: transparent; color: var(--warn); }
.btn.bad { background: var(--bad-soft); border-color: transparent; color: var(--bad); }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 13px; font-weight: 600; color: var(--text-2); }
.field .hint { font-size: 12px; color: var(--text-3); }
.input, select.input, textarea.input {
  width: 100%; padding: 8px 11px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--surface); outline: none;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea.input { resize: vertical; min-height: 70px; }
.form-grid { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }

/* Segmented choice */
.seg { display: flex; flex-wrap: wrap; gap: 8px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label {
  border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 9px 12px; cursor: pointer;
  background: var(--surface); min-width: 110px; flex: 1;
}
.seg label b { display: block; font-size: 14px; }
.seg label span { font-size: 12px; color: var(--text-2); }
.seg input:checked + label { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.seg input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Chips & badges ---------- */
.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border); font-size: 12.5px; cursor: default;
}
button.chip { cursor: pointer; }
button.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.chip .x { cursor: pointer; opacity: .6; margin-left: 2px; }
.chip .x:hover { opacity: 1; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.badge { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 999px; font-weight: 600; letter-spacing: .02em; }
.badge.new { background: var(--accent-soft); color: var(--accent); }
.badge.learning { background: var(--warn-soft); color: var(--warn); }
.badge.mastered { background: var(--good-soft); color: var(--good); }
.badge.due { background: var(--bad-soft); color: var(--bad); }

/* ---------- Progress ---------- */
.bar { height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .3s; }

/* ---------- Today tasks ---------- */
.task {
  display: flex; gap: 14px; align-items: center; padding: 14px 16px; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--surface);
}
.task + .task { margin-top: 10px; }
.task.done { background: var(--good-soft); border-color: transparent; }
.task.done .task-title { text-decoration: line-through; color: var(--text-2); }
.check {
  width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--border); flex: none; cursor: pointer;
  display: grid; place-items: center; background: var(--surface); color: transparent; font-size: 13px; padding: 0;
}
.task.done .check { background: var(--good); border-color: var(--good); color: #fff; }
.task-body { flex: 1; min-width: 0; }
.task-title { font-weight: 600; }
.task-desc { font-size: 13px; color: var(--text-2); }
.task-min { font-size: 12.5px; color: var(--text-3); white-space: nowrap; }
.task { align-items: flex-start; }
.task .check { margin-top: 1px; }
.task-steps { margin: 8px 0 0; padding-left: 20px; font-size: 13.5px; color: var(--text); }
.task-steps li + li { margin-top: 3px; }
.heat { display: grid; grid-template-rows: auto repeat(7, auto); gap: 3px; align-items: center; max-width: 420px; }
.heat > i { display: block; aspect-ratio: 1; border-radius: 3px; background: var(--surface-2); }
.heat > i.l1 { background: color-mix(in srgb, var(--good) 25%, var(--surface-2)); }
.heat > i.l2 { background: color-mix(in srgb, var(--good) 50%, var(--surface-2)); }
.heat > i.l3 { background: color-mix(in srgb, var(--good) 75%, var(--surface-2)); }
.heat > i.l4 { background: var(--good); }
.heat > i.now { outline: 2px solid var(--accent); outline-offset: 0; }
.heat-day { font-size: 10px; color: var(--text-3); padding-right: 4px; line-height: 1; }
.heat-month { grid-row: 1; font-size: 10px; color: var(--text-3); white-space: nowrap; overflow: visible; width: 0; }
.heat-legend { display: flex; align-items: center; justify-content: flex-end; gap: 3px; margin-top: 8px; font-size: 11px; color: var(--text-3); }
.heat-legend span { margin: 0 3px; }
.heat-legend i { width: 10px; height: 10px; border-radius: 2px; background: var(--surface-2); }
.heat-legend i.l1 { background: color-mix(in srgb, var(--good) 25%, var(--surface-2)); }
.heat-legend i.l2 { background: color-mix(in srgb, var(--good) 50%, var(--surface-2)); }
.heat-legend i.l3 { background: color-mix(in srgb, var(--good) 75%, var(--surface-2)); }
.heat-legend i.l4 { background: var(--good); }
.heat-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border); font-size: 13px; }
.heat-stats b { font-size: 15px; }
.heat-stats span { display: block; font-size: 11.5px; color: var(--text-3); }

/* ---------- Vocabulary list ---------- */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.toolbar .input { width: auto; }
.toolbar .search { flex: 1; min-width: 200px; }
.vocab-list { display: grid; gap: 10px; }
.vocab-item {
  display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; padding: 14px 16px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.vocab-phrase { font-weight: 650; font-size: 16px; }
.vocab-meaning { color: var(--text-2); font-size: 14px; }
.vocab-example { font-family: var(--font-read); font-style: italic; font-size: 14.5px; color: var(--text); margin-top: 2px; }
.vocab-meta { font-size: 12px; color: var(--text-3); display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 4px; }
.vocab-actions { display: flex; gap: 4px; align-items: flex-start; }
.syn-line { font-size: 13px; color: var(--text-2); margin-top: 4px; }
.syn-line b { color: var(--text-3); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; margin-right: 4px; }
.empty { text-align: center; padding: 40px 20px; color: var(--text-2); border: 1px dashed var(--border); border-radius: var(--radius); }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(10,12,15,.45); z-index: 50; display: grid; place-items: center; padding: 16px;
}
.modal {
  background: var(--surface); border-radius: 14px; width: min(640px, 100%); max-height: calc(100vh - 32px);
  overflow: auto; box-shadow: 0 20px 60px rgba(0,0,0,.3); border: 1px solid var(--border);
}
.modal.wide { width: min(820px, 100%); }
.modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; background: var(--surface); z-index: 1; }
.modal-head h2 { margin: 0; font-size: 1.1rem; }
.modal-body { padding: 18px 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; position: sticky; bottom: 0; background: var(--surface); }
@keyframes fade { from { opacity: 0; } }

/* ---------- Toast ---------- */
.toast-root { position: fixed; top: 16px; right: 16px; z-index: 60; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); font-size: 14px; max-width: 340px; }

/* ---------- Review session ---------- */
.review-wrap { max-width: 720px; margin: 0 auto; }
.review-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.review-top .bar { flex: 1; }
.review-card { padding: 28px 28px 22px; text-align: center; }
.review-type { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); font-weight: 600; }
.review-prompt { font-size: 19px; margin: 14px 0 6px; }
.review-cloze { font-family: var(--font-read); font-size: 21px; line-height: 1.6; margin: 16px 0; }
.review-cloze .gap { display: inline-block; min-width: 90px; border-bottom: 2px solid var(--accent); color: var(--accent); padding: 0 4px; }
.cloze-in {
  font: inherit; color: var(--accent); background: var(--accent-soft); border: 0; border-bottom: 2px solid var(--accent);
  border-radius: 4px 4px 0 0; padding: 0 4px; text-align: center; outline: none; max-width: 100%;
}
.cloze-in:focus { box-shadow: 0 0 0 3px var(--accent-soft); background: var(--surface); }
.cloze-in.ok { color: var(--good); border-color: var(--good); background: var(--good-soft); }
.cloze-in.close { color: var(--warn); border-color: var(--warn); background: var(--warn-soft); }
.cloze-in.bad { color: var(--bad); border-color: var(--bad); background: var(--bad-soft); text-decoration: line-through; }
.cloze-in:disabled { opacity: 1; }
.review-hint { font-size: 13.5px; color: var(--text-2); }
.review-answer { margin-top: 18px; padding: 16px; border-radius: var(--radius-sm); background: var(--surface-2); text-align: left; }
.review-answer .phrase { font-size: 20px; font-weight: 700; }
.verdict { font-weight: 700; margin-bottom: 6px; }
.verdict.ok { color: var(--good); }
.verdict.close { color: var(--warn); }
.verdict.no { color: var(--bad); }
.answer-input { font-size: 18px; text-align: center; padding: 12px; }
.rate-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 16px; }
.rate-row .btn { flex-direction: column; gap: 0; padding: 8px; }
.rate-row .btn small { font-weight: 400; font-size: 11.5px; color: inherit; opacity: .85; }
.timer { position: relative; width: 52px; height: 52px; flex: none; }
.timer svg { transform: rotate(-90deg); }
.timer .t-num { position: absolute; inset: 0; display: grid; place-items: center; font-weight: 700; font-variant-numeric: tabular-nums; font-size: 15px; }
.timer.low .t-num { color: var(--bad); }
.mic-btn { width: 74px; height: 74px; border-radius: 50%; font-size: 26px; }
.mic-btn.starting { background: var(--warn-soft); border-color: var(--warn); color: var(--warn); }
.mic-btn.listening { background: var(--bad); border-color: var(--bad); color: #fff; animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 10px transparent; } 0% { box-shadow: 0 0 0 0 rgba(178,59,59,.45); } }
.heard { font-family: var(--font-read); font-size: 17px; font-style: italic; min-height: 26px; }
.diff-ok { color: var(--good); }
.diff-miss { color: var(--bad); text-decoration: line-through; }
.diff-ok { font-weight: 600; }
.diff-gap { color: var(--bad); font-weight: 600; text-decoration: underline dotted; text-underline-offset: 3px; }
.speak-diff { font-family: var(--font-read); font-size: 16px; line-height: 1.7; margin-top: 4px; }

/* ---------- Reading ---------- */
.reading-layout { display: grid; grid-template-columns: minmax(0,1fr) 280px; gap: 20px; align-items: start; }
@media (max-width: 980px) { .reading-layout { grid-template-columns: 1fr; } }
.passage {
  font-family: var(--font-read); font-size: 18.5px; line-height: 1.75; padding: 32px 40px;
}
@media (max-width: 600px) { .passage { padding: 20px 18px; font-size: 17px; } }
.passage h1 { font-family: var(--font); font-size: 1.6rem; margin-bottom: 4px; }
.passage h3 { font-family: var(--font); margin-top: 1.4em; font-size: 1.05rem; }
.passage p { margin: 0 0 1.05em; }
.passage .saved { background: var(--highlight); color: inherit; border-radius: 3px; padding: 0 1px; }
.passage p mark.saved { cursor: pointer; }
.passage p mark.saved:hover { box-shadow: 0 0 0 2px var(--highlight); }
.passage-meta { font-family: var(--font); font-size: 13px; color: var(--text-3); margin-bottom: 20px; display: flex; gap: 12px; flex-wrap: wrap; }
.side-sticky { position: sticky; top: 20px; }
.source-list { display: grid; gap: 8px; }
.source-opt { text-align: left; padding: 10px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); cursor: pointer; }
.source-opt:hover { border-color: var(--accent); }
.source-opt.on { border-color: var(--accent); background: var(--accent-soft); }
.source-opt b { display: block; font-size: 14px; }
.source-opt span { font-size: 12px; color: var(--text-2); }
.loading { padding: 60px 20px; text-align: center; color: var(--text-2); }
.spinner { width: 26px; height: 26px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; margin: 0 auto 12px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Misc ---------- */
.note { padding: 12px 14px; border-radius: var(--radius-sm); background: var(--accent-soft); color: var(--text); font-size: 14px; }
.note.warn { background: var(--warn-soft); }
.tip { font-size: 13.5px; color: var(--text-2); border-left: 3px solid var(--accent); padding: 2px 0 2px 12px; }
.list-plain { margin: 0; padding-left: 18px; }
.list-plain li + li { margin-top: 4px; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 14px; }
.kv dt { color: var(--text-2); }
.kv dd { margin: 0; font-weight: 600; }
hr.sep { border: 0; border-top: 1px solid var(--border); margin: 18px 0; }
.hidden { display: none !important; }
.center { text-align: center; }

/* ---------- Sign-in (online site) ---------- */
body.signed-out .sidebar, body.signed-out .menu-btn { display: none; }
body.signed-out .main { max-width: none; }
.auth-wrap { min-height: 80vh; display: grid; place-items: center; }
.auth-card { width: 100%; max-width: 400px; padding: 28px; }
.auth-card h1 { font-size: 1.5rem; margin-bottom: 4px; }
.auth-card .brand { padding: 0; }

/* ---------- Reading: word tooltip and word card (D17) ---------- */
.word-tip {
  position: absolute; z-index: 45; padding: 5px 10px; border-radius: 8px; background: var(--good); color: #fff;
  font-size: 14px; font-weight: 600; max-width: 260px; pointer-events: none; box-shadow: var(--shadow);
}
.word-tip::after {
  content: ''; position: absolute; left: var(--arrow-x, 50%); bottom: -5px; width: 10px; height: 10px; margin-left: -5px;
  background: var(--good); transform: rotate(45deg);
}
.word-card {
  position: absolute; z-index: 46; width: min(360px, calc(100vw - 16px)); padding: 16px 16px 14px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); box-shadow: 0 12px 32px rgba(0,0,0,.18); font-family: var(--font); font-size: 14px;
}
.word-card::before {
  content: ''; position: absolute; left: var(--arrow-x, 50%); top: -7px; width: 12px; height: 12px; margin-left: -6px;
  background: var(--surface); border-left: 1px solid var(--border); border-top: 1px solid var(--border); transform: rotate(45deg);
}
.word-card.above::before { top: auto; bottom: -7px; transform: rotate(225deg); }
.wc-x { position: absolute; top: 8px; right: 8px; border: 0; background: var(--surface-2); color: var(--text-2); width: 26px; height: 26px; border-radius: 50%; cursor: pointer; }
.wc-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-end; padding-right: 28px; }
.wc-lang { font-size: 11px; font-weight: 700; letter-spacing: .06em; color: var(--text-3); }
.wc-ipa { font-weight: 400; letter-spacing: 0; margin-left: 6px; font-family: var(--font-read); }
.wc-word { font-family: var(--font-read); font-size: 1.45rem; font-weight: 700; display: flex; align-items: center; gap: 4px; }
.wc-vicol { text-align: right; }
.wc-vi { font-size: 1.05rem; font-weight: 650; color: var(--good); }
.wc-alt { margin-top: 8px; font-size: 12.5px; color: var(--text-2); }
.wc-alt b { font-weight: 600; color: var(--text-3); text-transform: capitalize; margin-right: 4px; }
.wc-sense { margin-top: 10px; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--surface-2); }
.wc-sense .badge { text-transform: uppercase; }
.wc-def { margin-top: 6px; font-weight: 550; }
.wc-defvi { margin-top: 3px; color: var(--good); font-style: italic; font-size: 13.5px; }
.wc-ex { margin-top: 6px; color: var(--text-2); font-family: var(--font-read); font-style: italic; font-size: 13.5px; }
.wc-foot { display: flex; gap: 8px; align-items: center; margin-top: 12px; }
.wc-saved { flex: 1; color: var(--good); font-weight: 650; }

/* Words in a passage: hand cursor and a green highlight on hover (D17) */
.passage p .w { border-radius: 3px; transition: background-color .1s, color .1s; }
@media (hover: hover) and (pointer: fine) {
  .passage p .w { cursor: pointer; }
  .passage p .w:hover { background: color-mix(in srgb, var(--good) 22%, transparent); color: var(--good); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--good) 55%, transparent); text-underline-offset: 3px; }
}
.passage p mark.saved .w:hover { background: transparent; }
.wc-phrase { font-family: var(--font-read); font-size: 1.15rem; font-weight: 700; font-style: italic; display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.wc-head.wc-long { flex-direction: column; align-items: stretch; }
.wc-head.wc-long .wc-vicol { text-align: left; }
.wc-head.wc-long .wc-vi { font-size: 15px; font-weight: 500; line-height: 1.5; }
.wc-save { width: 100%; margin-top: 12px; background: var(--good); border-color: var(--good); color: #fff; font-weight: 650; }
.wc-save:hover { background: var(--good); filter: brightness(1.08); }
.wc-under { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: 8px; font-size: 12.5px; color: var(--text-2); flex-wrap: wrap; }
.wc-under a { color: var(--text-2); }
.wc-topic select { font: inherit; color: var(--text); background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px; padding: 2px 4px; margin-left: 4px; max-width: 170px; }
.wc-head > div:first-child { flex: 1; min-width: 0; }
.wc-vicol { max-width: 55%; }