/* Dashboard cards, vocabulary, assignments, session modal, sync status */

.hero-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.next-card { order: -1; min-height: 330px; padding: 30px 32px; border: 1px solid rgba(214,95,123,.2); background: radial-gradient(circle at 92% 6%,rgba(255,255,255,.92),transparent 35%), linear-gradient(145deg,#fffdf8 0%,#fff4f5 55%,#f9e6e8 100%); color: var(--ink); box-shadow: 0 20px 56px rgba(137,82,96,.12), inset 0 1px 0 rgba(255,255,255,.9); }
.next-card::before { content: "NEXT"; position: absolute; right: 28px; top: 27px; color: rgba(214,95,123,.11); font: 700 28px/1 var(--font-serif); letter-spacing: -.04em; pointer-events: none; }
.next-card::after { right: -18px; bottom: -62px; color: rgba(214,95,123,.055); }
.next-card .next-card-head { color: var(--muted); }
.next-card .next-date-big { margin-top: 19px; color: #7d3e51; font-size: 46px; letter-spacing: -.04em; text-shadow: 0 10px 28px rgba(214,95,123,.1); }
.next-card h3 { margin-top: 7px; }
.next-card > p:not(.next-date-big) { max-width: 100%; color: var(--muted); font-size: 11px; line-height: 1.5; }
.next-card .status-dot { background: #849b55; box-shadow: 0 0 0 7px rgba(132,155,85,.13); animation: next-session-pulse 2.4s ease-in-out infinite; }
@keyframes next-session-pulse { 50% { box-shadow: 0 0 0 12px rgba(132,155,85,0); } }
.hero-grid > .hero-card { min-height: 330px; padding: 38px; grid-template-columns: minmax(0,1fr) 230px; }
.hero-grid > .hero-card .hero-copy { align-self: center; }
.hero-grid > .hero-card .hero-copy h2 { font-size: clamp(30px,4vw,48px); }
.hero-grid > .hero-card .hero-meta { margin-top: 24px; }
.hero-grid > .hero-card .hero-actions { align-items: center; flex-direction: row; flex-wrap: wrap; gap: 16px; }
.hero-grid > .hero-card .book-visual { position: relative; right: auto; bottom: auto; opacity: 1; transform: none; }
.hero-grid > .hero-card::before { right: 250px; bottom: -45px; }
.next-card-assignment-section { position: relative; z-index: 2; margin-top: 18px; }
.next-card-assignment-head { margin-bottom: 7px; align-items: center; display: flex; justify-content: space-between; color: rgba(255,255,255,.72); font-size: 12px; }
.next-card-assignment-head > span { color: var(--accent); font-size: 10px; font-weight: 900; letter-spacing: .08em; }
.next-card-assignment-head small { padding: 3px 7px; border-radius: 999px; background: rgba(214,95,123,.1); color: var(--accent); font: 800 9px var(--font-serif); }
.next-card-assignment-item { width: 100%; min-width: 0; min-height: 55px; padding: 8px 11px; border: 1px solid rgba(214,95,123,.15); border-radius: 13px; background: rgba(255,255,255,.72); color: var(--ink); display: grid; grid-template-columns: 32px minmax(0,1fr) auto; align-items: center; gap: 10px; text-align: left; cursor: pointer; transition: transform .18s ease,border-color .18s ease,box-shadow .18s ease; }
.next-card-assignment-item:hover,.next-card-assignment-item:focus-visible { transform: translateY(-2px); border-color: rgba(214,95,123,.38); box-shadow: 0 10px 24px rgba(137,82,96,.09); outline: none; }
.next-card-assignment-item > span { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 10px; background: var(--accent-soft); color: var(--accent); font: 700 10px var(--font-serif); }
.next-card-assignment-item strong { min-width: 0; font-size: 13px; line-height: 1.45; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.next-card-assignment-item i { color: var(--accent); font-size: 8px; font-style: normal; white-space: nowrap; }
.next-card-assignment-empty { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px dashed rgba(214,95,123,.25); border-radius: 13px; background: rgba(255,255,255,.42); color: var(--muted); display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; cursor: pointer; }
.next-card-assignment-empty span { font-size: 10px; }
.next-card-assignment-empty i,.next-card-assignment-add,.next-card-assignment-overflow { color: var(--accent); font-size: 9px; font-style: normal; font-weight: 800; }
.next-card-assignment-add,.next-card-assignment-overflow { width: max-content; padding: 3px 0; border: 0; background: transparent; cursor: pointer; }
.next-card .next-card-footer { position: relative; left: auto; right: auto; bottom: auto; border-top: 1px solid rgba(93,60,71,.1); display: block; margin-top: 18px; padding-top: 14px; }
.next-card .next-card-footer > div:first-child { display: flex; align-items: center; justify-content: space-between; }
.next-card .next-card-footer span { color: var(--muted); }
.next-card .next-card-footer strong { color: #7d3e51; font-size: 16px; }
.next-card .next-card-footer .ring { display: none; }

.dashboard-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
.dashboard-grid > .panel { min-width: 0; min-height: 360px; display: flex; flex-direction: column; }
.dashboard-grid .panel-head { min-height: 46px; margin-bottom: 18px; }
.dashboard-grid .panel-head .text-btn { flex: 0 0 auto; font-size: 11px; }
.dashboard-grid .timeline-item { grid-template-columns: 56px 14px minmax(0,1fr); gap: 8px; }
.dashboard-grid .timeline-date strong { font-size: 14px; }
.meeting-access-card { margin: 22px 0 0;
  padding: 20px 24px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--surface); box-shadow: var(--shadow-sm); display: grid;
  grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 18px; }

.dashboard-vocabulary-panel { position: relative; overflow: hidden; background: linear-gradient(155deg,rgba(255,253,251,.96),rgba(238,244,226,.76)); }
.dashboard-vocabulary-panel::after { content: "語"; position: absolute; right: -8px; bottom: -50px; color: rgba(132,155,85,.055); font: 700 150px var(--font-japanese-serif); pointer-events: none; }
.dashboard-vocabulary { position: relative; z-index: 1; flex: 1; min-height: 0; display: flex; flex-direction: column; }
.dashboard-vocabulary-meta { margin-bottom: 13px; padding-bottom: 11px; border-bottom: 1px solid rgba(132,155,85,.16); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dashboard-vocabulary-meta div { min-width: 0; display: grid; gap: 3px; }
.dashboard-vocabulary-meta span { color: #6d8147; font-size: 9px; font-weight: 900; }
.dashboard-vocabulary-meta strong { min-width: 0; color: var(--muted); font-size: 9px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dashboard-vocabulary-meta b { flex: 0 0 auto; padding: 5px 8px; border-radius: 999px; background: rgba(132,155,85,.12); color: #61743e; font: 800 10px var(--font-serif); }
.dashboard-word-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 7px; }
.dashboard-word-grid button { min-width: 0; min-height: 62px; padding: 9px 11px; border: 1px solid rgba(132,155,85,.17); border-radius: 11px; background: rgba(255,255,255,.66); color: var(--ink); display: flex; align-items: flex-start; justify-content: space-between; gap: 9px; text-align: left; cursor: pointer; transition: .18s ease; }
.dashboard-word-grid button:hover,.dashboard-word-grid button:focus-visible { transform: translateY(-1px); border-color: rgba(132,155,85,.42); background: rgba(255,255,255,.9); outline: none; }
.dashboard-word-grid span { min-width: 0; font: 600 13px/1.4 var(--font-japanese-serif); overflow-wrap: anywhere; }
.dashboard-word-grid small { min-width: 0; color: var(--muted); font-size: 10px; line-height: 1.45; overflow-wrap: anywhere; }
.dashboard-word-grid i { flex: 0 0 auto; align-self: center; color: #78936c; font-size: 8px; font-style: normal; }
.dashboard-vocabulary-empty { flex: 1; min-height: 210px; border: 0; background: transparent; color: var(--muted); display: grid; place-content: center; gap: 7px; text-align: center; }
.dashboard-vocabulary-empty.actionable { width: 100%; border: 1px dashed rgba(132,155,85,.28); border-radius: 15px; cursor: pointer; }
.dashboard-vocabulary-empty span { color: #61743e; font: 700 16px var(--font-serif); }
.dashboard-vocabulary-empty p { margin: 0; font-size: 10px; }
.dashboard-word-overflow { width: max-content; margin-top: auto; padding: 10px 0 0; border: 0; background: transparent; color: #61743e; font-size: 9px; font-weight: 800; cursor: pointer; }

[data-theme="dark"] .next-card { border-color: rgba(240,140,164,.24); background: radial-gradient(circle at 92% 6%,rgba(255,255,255,.06),transparent 35%),linear-gradient(145deg,#46333d,#362831); color: var(--ink); }
[data-theme="dark"] .next-card .next-date-big,[data-theme="dark"] .next-card .next-card-footer strong { color: #f3b3c2; }
[data-theme="dark"] .next-card-assignment-item,[data-theme="dark"] .dashboard-word-grid button { background: rgba(255,255,255,.045); }
[data-theme="dark"] .dashboard-vocabulary-panel { background: linear-gradient(155deg,rgba(55,41,50,.96),rgba(51,64,42,.84)); }
.session-count-badges { display: flex; gap: 6px; margin-top: 8px; }
.session-count-badges span { padding: 3px 7px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font: 700 9px var(--font-serif); }
.nav-item[data-view="vocabulary"] .nav-icon { width: 32px; white-space: nowrap; font-size: 10px; }

.learning-toolbar { align-items: center; }
.learning-hero { position: relative; min-height: 170px; margin-bottom: 20px; padding: 28px 34px; border-radius: 28px; overflow: hidden; display: flex; align-items: center; justify-content: space-between; color: #fff; background: linear-gradient(135deg,#526d58,#78936c); box-shadow: var(--shadow); }
.learning-hero::after { content: "言葉"; position: absolute; right: 120px; bottom: -45px; color: rgba(255,255,255,.06); font: 700 130px var(--font-japanese-serif); }
.learning-hero > div { position: relative; z-index: 1; }
.learning-hero p { margin: 0 0 4px; color: rgba(255,255,255,.6); font: 600 10px var(--font-japanese-serif); letter-spacing: .18em; }
.learning-hero h3 { margin: 0; font: 600 24px var(--font-serif); }
.learning-kanji { position: absolute; left: -5px; top: -42px; color: rgba(255,255,255,.08); font: 700 120px var(--font-serif); }
.learning-hero > strong { position: relative; z-index: 1; font: 700 58px var(--font-serif); }
.learning-hero > strong small { margin-left: 5px; font-size: 16px; opacity: .65; }
.learning-controls { margin-bottom: 18px; display: grid; grid-template-columns: minmax(220px,1fr) auto 180px 220px; gap: 10px; }
.learning-controls select, .search-field { min-height: 44px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-solid); color: var(--ink); }
.search-field { display: flex; align-items: center; gap: 9px; padding: 0 14px; }
.search-field input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--ink); }
.learning-controls select { padding: 0 12px; }
.segmented-control { padding: 4px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-solid); display: flex; }
.segmented-control button { padding: 7px 12px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); cursor: pointer; }
.segmented-control button.active { background: #607a63; color: #fff; }
.word-index, .vocabulary-list { display: grid; gap: 9px; }
.word-index-row, .word-group-head { width: 100%; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); color: var(--ink); cursor: pointer; }
.word-index-row { padding: 15px 18px; display: grid; grid-template-columns: minmax(160px,.6fr) 1fr auto; align-items: center; gap: 20px; text-align: left; transition: .18s ease; }
.word-index-row:hover { transform: translateY(-2px); border-color: #78936c; box-shadow: var(--shadow-sm); }
.word-index-row strong { font: 600 19px var(--font-japanese-serif); }
.word-index-row > div { min-width: 0; display: grid; gap: 4px; }
.word-index-row small { color: var(--muted); font-size: 11px; font-weight: 400; white-space: pre-wrap; }
.word-index-row span { color: var(--muted); font-size: 11px; }
.word-index-row i { color: #607a63; font-size: 9px; font-style: normal; }
.word-session-group { border: 1px solid var(--line); border-radius: 20px; background: var(--surface); overflow: hidden; }
.word-group-head { padding: 17px 20px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; display: flex; justify-content: space-between; text-align: left; }
.word-group-head span, .word-group-head strong { display: block; }
.word-group-head span { color: var(--muted); font-size: 10px; }
.word-group-head b { color: #607a63; }
.word-cloud { padding: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.word-cloud button { padding: 8px 12px; border: 1px solid rgba(96,122,99,.2); border-radius: 14px; background: rgba(120,147,108,.09); color: var(--ink); display: grid; gap: 3px; text-align: left; cursor: pointer; }
.word-cloud button strong { font: 600 14px var(--font-japanese-serif); }
.word-cloud button small { color: var(--muted); font-size: 10px; white-space: pre-wrap; }
.learning-empty { min-height: 260px; border: 1px dashed var(--line); border-radius: 24px; display: grid; place-items: center; align-content: center; gap: 8px; text-align: center; }
.learning-empty > span { color: #78936c; font: 700 44px var(--font-serif); }

.assignment-controls { grid-template-columns: 220px 260px; justify-content: end; }
.assignment-view-tabs { width: fit-content; margin: 0 0 18px auto; }
.important-filter { min-height: 44px; padding: 0 15px; border: 1px solid var(--line); border-radius: 13px; display: flex; align-items: center; gap: 8px; background: var(--surface-solid); font-size: 11px; }
.assignment-accent { background: #ad7440; }
.assignment-groups { display: grid; gap: 24px; }
.assignment-group { display: grid; gap: 10px; }
.assignment-group-head { display: flex; justify-content: space-between; align-items: center; padding: 0 4px; }
.assignment-group-head > div { display: flex; align-items: center; gap: 9px; }
.assignment-group-head span { width: 30px; height: 30px; border-radius: 10px; display: grid; place-items: center; background: rgba(173,116,64,.12); color: #ad7440; font: 700 13px var(--font-serif); }
.assignment-group-head h3 { margin: 0; }
.assignment-group-head b { color: var(--muted); }
.assignment-card { border: 1px solid var(--line); border-left: 4px solid #b98657; border-radius: 17px; background: var(--surface); overflow: hidden; }
.assignment-card-row { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; }
.assignment-edit-btn { margin-right: 16px; white-space: nowrap; }
.assignment-responses { padding: 12px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr; gap: 6px; background: color-mix(in srgb,var(--accent-soft),transparent 62%); }
.student-response-accordion { border: 1px solid var(--line); border-radius: 13px; overflow: hidden; background: var(--surface-solid); transition: border-color .18s ease, box-shadow .18s ease; }
.student-response-accordion.has-response { border-color: rgba(96,122,99,.38); background: color-mix(in srgb,var(--surface-solid),#78936c 4%); }
.student-response-accordion.expanded { border-color: #78936c; box-shadow: 0 7px 20px rgba(68,87,70,.09); }
.student-response-toggle { width: 100%; min-height: 50px; padding: 8px 12px; border: 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; background: transparent; color: var(--ink); cursor: pointer; text-align: left; }
.student-response-toggle:focus-visible { outline: 3px solid rgba(120,147,108,.24); outline-offset: -3px; }
.student-response-name { min-width: 0; display: flex; align-items: center; gap: 9px; }
.student-response-name > i { width: 30px; height: 30px; flex: 0 0 auto; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); font: 700 13px var(--font-serif); font-style: normal; }
.student-response-accordion.has-response .student-response-name > i { background: #607a63; color: #fff; }
.student-response-name > strong { font-size: 13px; }
.student-response-saved,.student-response-empty { padding: 3px 7px; border-radius: 999px; font-size: 9px; font-weight: 800; }
.student-response-saved { background: rgba(96,122,99,.13); color: #58715b; }
.student-response-empty { color: var(--muted); background: rgba(127,127,127,.08); }
.student-response-chevron { color: var(--muted); font-size: 17px; transition: transform .18s ease; }
.student-response-accordion.expanded .student-response-chevron { transform: rotate(180deg); }
.student-response-editor { min-width: 0; padding: 4px 12px 12px 51px; border-top: 1px solid color-mix(in srgb,var(--line),transparent 35%); background: transparent; display: grid; gap: 9px; }
.student-response-meta { padding-top: 9px; color: var(--muted); font-size: 9px; }
.student-response-editor textarea { width: 100%; resize: vertical; border: 1px solid var(--line); border-radius: 12px; padding: 11px 12px; background: var(--surface); color: var(--ink); font: inherit; line-height: 1.55; }
.student-response-editor button { justify-self: end; }
.assignment-no-students { grid-column: 1 / -1; padding: 24px; text-align: center; }
.assignment-no-students p { margin-bottom: 12px; }
.student-record-controls { grid-template-columns: 220px 260px auto; }
.inactive-record-toggle { min-height: 44px; padding: 0 14px; border: 1px solid var(--line); border-radius: 13px; display: flex; align-items: center; gap: 8px; background: var(--surface-solid); }
.student-record-summary { margin: 18px 0; display: grid; grid-template-columns: repeat(2,minmax(0,180px)); gap: 12px; }
.student-record-summary > div { padding: 18px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); display: grid; gap: 4px; }
.student-record-summary strong { font: 700 24px var(--font-serif); color: var(--accent-text); }
.student-record-summary span { color: var(--muted); font-size: 11px; }
.student-record-list { display: grid; gap: 12px; }
.student-record-card { padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); }
.student-record-card > div { display: flex; gap: 10px; color: var(--muted); font-size: 11px; }
.student-record-card h3 { margin: 8px 0; }
.student-record-card p { margin: 0 0 12px; white-space: pre-wrap; line-height: 1.65; }
.student-record-card small { display: block; color: var(--muted); }
.student-record-card button { margin-top: 12px; }
.student-add-form { margin: 16px 0; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 8px; }
.student-add-form input { min-width: 0; border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; background: var(--surface-solid); color: var(--ink); }
.student-roster-list { display: grid; gap: 8px; margin: 12px 0; }
.student-roster-row { padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.student-roster-row > div { display: flex; flex-wrap: wrap; justify-content: end; gap: 5px; }
.student-roster-row button { min-height: 34px; border: 1px solid var(--line); border-radius: 9px; padding: 5px 8px; background: var(--surface-solid); color: var(--ink); cursor: pointer; }
.student-roster-row span { display: grid; gap: 2px; }
.student-roster-row small { color: var(--muted); font-size: 9px; }
.student-roster-row.inactive { color: var(--muted); }
.student-active-toggle { min-height: 34px; padding: 5px 8px; border: 1px solid var(--line); border-radius: 9px; display: inline-flex; align-items: center; gap: 5px; background: var(--surface-solid); font-size: 11px; }
.assignment-card.important { border-left-color: #d65f7b; }
.assignment-card-main { width: 100%; padding: 15px 18px; border: 0; background: transparent; color: var(--ink); display: grid; grid-template-columns: 54px 1fr auto; gap: 16px; text-align: left; cursor: pointer; }
.assignment-date-tile { width: 50px; height: 55px; border-radius: 13px; display: grid; place-items: center; align-content: center; background: rgba(173,116,64,.1); }
.assignment-date-tile strong { font: 700 21px var(--font-serif); }
.assignment-date-tile span { color: var(--muted); font-size: 9px; }
.assignment-labels { display: flex; gap: 7px; }
.assignment-labels span, .assignment-labels b { padding: 3px 7px; border-radius: 999px; background: rgba(173,116,64,.1); color: #9a6537; font-size: 8px; }
.assignment-labels b { background: rgba(214,95,123,.12); color: #d65f7b; }
.assignment-card h3 { margin: 7px 0 3px; font-size: 15px; }
.assignment-card p, .assignment-card details { margin: 0; color: var(--muted); font-size: 10px; }
.assignment-description { padding: 9px 18px; border-top: 1px solid var(--line); }
.assignment-card details div { margin-top: 8px; white-space: pre-line; line-height: 1.6; }
.assignment-card-main > i { align-self: center; color: #ad7440; font-size: 9px; font-style: normal; }
.assignment-card > a { display: block; padding: 8px 18px; border-top: 1px solid var(--line); color: #9a6537; font-size: 10px; text-decoration: none; }
.assignment-empty { margin: 0; padding: 20px; border: 1px dashed var(--line); border-radius: 15px; color: var(--muted); text-align: center; }

.session-detail-card { width: min(860px,100%); }
.session-summary-strip { margin: -8px 0 17px; padding: 13px 16px; border-radius: 14px; background: var(--accent-soft); display: flex; align-items: center; justify-content: space-between; }
.session-summary-strip strong, .session-summary-strip span { display: block; }
.session-summary-strip span, .session-summary-strip p { margin: 3px 0 0; color: var(--muted); font-size: 10px; }
.session-tabs { margin-bottom: 20px; padding: 4px; border: 1px solid var(--line); border-radius: 14px; display: grid; grid-template-columns: repeat(3,1fr); background: var(--surface); }
.session-tabs button { padding: 10px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font-weight: 700; cursor: pointer; }
.session-tabs button.active { background: var(--surface-solid); color: var(--ink); box-shadow: var(--shadow-sm); }
.session-tabs button span { margin-left: 4px; color: var(--accent); }
.session-tab-panel { display: none; animation: fade .2s ease; }
.session-tab-panel.active { display: block; }
.vocabulary-grid-help { margin: 0 0 10px; color: var(--muted); font-size: 11px; }
.vocabulary-grid { display: grid; gap: 8px; }
.vocabulary-grid-row { padding: 10px; border: 1px solid var(--line); border-radius: 14px; display: grid; grid-template-columns: 34px minmax(140px,.75fr) minmax(220px,1.25fr) 70px; gap: 9px; align-items: center; background: var(--surface); }
.vocabulary-grid-row > b { color: #78936c; font: 700 12px var(--font-serif); text-align: center; }
.vocabulary-grid-row label { min-width: 0; display: grid; gap: 4px; }
.vocabulary-grid-row label > span { color: var(--muted); font-size: 9px; }
.vocabulary-grid-row :is(input,textarea) { width: 100%; min-width: 0; padding: 9px 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-solid); color: var(--ink); font: 500 13px/1.45 var(--font-japanese-sans); resize: vertical; }
.vocabulary-grid-row :is(input,textarea):focus { border-color: #78936c; outline: 2px solid rgba(120,147,108,.18); }
.vocabulary-grid-row.has-error { border-color: #c94f6b; }
.vocabulary-row-status { color: #607a63; font-size: 9px; text-align: center; }
.vocabulary-grid-row.has-error .vocabulary-row-status { color: #c94f6b; }
.session-assignment-block { margin-top: 14px; border: 1px solid var(--line); border-radius: 17px; overflow: hidden; background: var(--surface); }
.session-assignment-block > header { padding: 14px 16px; display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.session-assignment-block > header h3 { margin: 0 0 4px; white-space: pre-wrap; }
.session-assignment-block > header small { color: var(--muted); }
.session-assignment-block > header > div:last-child { display: flex; gap: 5px; }
.session-assignment-block > header button { padding: 6px 9px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface-solid); color: var(--ink); cursor: pointer; }
.bulk-word-composer { padding: 20px; border: 1px solid rgba(96,122,99,.2); border-radius: 20px; background: linear-gradient(145deg,rgba(120,147,108,.11),transparent); }
.bulk-word-composer h3 { margin: 3px 0 15px; }
.bulk-word-composer textarea { width: 100%; resize: vertical; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface-solid); color: var(--ink); font: 500 16px/1.7 var(--font-japanese-sans); }
.composer-meta { margin-top: 10px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.composer-meta span { color: var(--muted); font-size: 10px; }
.session-vocabulary-list, .session-assignment-list { margin-top: 16px; display: grid; gap: 7px; }
.session-vocabulary-list { height: 300px; margin: 0 0 14px; padding: 4px 6px 4px 0; align-content: start; overflow-y: auto; scrollbar-width: thin; scrollbar-color: rgba(96,122,99,.38) transparent; }
.session-vocabulary-list .learning-inline-empty { min-height: 280px; margin: 0; border: 1px dashed var(--line); border-radius: 16px; display: grid; place-items: center; }
.compact-word-composer { padding: 14px; border-radius: 16px; display: grid; gap: 10px; }
.compact-word-composer .field { margin: 0; }
.compact-word-composer textarea { resize: vertical; line-height: 1.55; }
.word-input-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
.word-input-row input { min-width: 0; padding: 11px 13px; border: 1px solid var(--line); border-radius: 12px; outline: none; background: var(--surface-solid); color: var(--ink); font: 500 14px var(--font-japanese-sans); }
.word-input-row input:focus { border-color: #78936c; box-shadow: 0 0 0 3px rgba(120,147,108,.1); }
.word-input-row .primary-btn { padding: 10px 18px; background: #607a63; box-shadow: none; }
.compact-word-composer > span { display: block; color: var(--muted); font-size: 9px; }
.compact-word-composer.limit-reached { border-color: rgba(132,155,85,.28); background: rgba(132,155,85,.08); }
.compact-word-composer :is(input,textarea):disabled,.assignment-editor textarea:disabled { cursor: not-allowed; opacity: .58; background: rgba(127,127,127,.06); }
.compact-word-composer button:disabled,.assignment-editor button[type="submit"]:disabled { cursor: not-allowed; opacity: .42; transform: none; box-shadow: none; }
.session-word, .session-assignment { padding: 11px 13px; border: 1px solid var(--line); border-radius: 12px; display: flex; align-items: center; justify-content: space-between; background: var(--surface); }
.session-word > span { min-width: 0; display: grid; gap: 3px; }
.session-word > span strong { font: 600 15px var(--font-japanese-serif); }
.session-word > span small { color: var(--muted); font-size: 10px; font-weight: 400; white-space: pre-wrap; }
.session-word button, .session-assignment button { padding: 4px 7px; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.assignment-editor { padding: 18px; border: 1px solid rgba(173,116,64,.22); border-radius: 20px; background: rgba(173,116,64,.05); }
.assignment-editor textarea { min-height: 150px; font-size: 14px; line-height: 1.75; }
.assignment-editor.limit-reached { border-color: rgba(173,116,64,.32); background: rgba(173,116,64,.08); }
.input-limit-status { margin: 9px 0 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.check-field { display: flex; align-items: center; gap: 8px; font-size: 11px; }
.session-assignment > div:first-child { display: grid; gap: 2px; }
.session-assignment > div:first-child span { width: max-content; color: #d65f7b; font-size: 8px; font-weight: 800; }
.session-assignment small, .learning-inline-empty { color: var(--muted); font-size: 10px; }

@media (max-width: 840px) {
  .assignment-responses { grid-template-columns: 1fr; }
  .student-record-controls { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid > .hero-card { min-height: 300px; }
  .next-card > p:not(.next-date-big) { max-width: 100%; }
  .learning-controls { grid-template-columns: 1fr 1fr; }
  .search-field { grid-column: 1 / -1; }
}
@media (max-width: 1180px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid > .hero-card { min-height: 330px; }
  .next-card > p:not(.next-date-big) { max-width: 100%; }
}
@media (min-width: 841px) and (max-width: 1180px) {
  .dashboard-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .dashboard-grid > .chapter-panel { grid-column: 1 / -1; min-height: auto; }
}
@media (max-width: 840px) {
  .app-shell,.main-content { width: 100%; max-width: 100vw; }
  .hero-grid,.hero-grid > *,.dashboard-grid,.dashboard-grid > * { min-width: 0; width: 100%; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-grid > .panel { min-height: auto; }
  .dashboard-grid > .chapter-panel { grid-column: auto; }
}
@media (max-width: 600px) {
  .vocabulary-grid-row { grid-template-columns: 34px minmax(0,1fr); align-items: start; }
  .vocabulary-grid-row > b { grid-row: 1 / span 3; padding-top: 24px; }
  .vocabulary-row-status { text-align: left; }
  .assignment-view-tabs { width: 100%; margin-left: 0; }
  .assignment-view-tabs button { flex: 1; }
  .assignment-card-row { grid-template-columns: 1fr; }
  .assignment-edit-btn { margin: 0 13px 13px; }
  .assignment-responses { padding: 12px; }
  .student-response-editor button { width: 100%; justify-self: stretch; }
  .student-response-editor { padding-left: 12px; }
  .student-record-summary { grid-template-columns: 1fr 1fr; }
  .student-add-form { grid-template-columns: 1fr; }
  .student-roster-row { align-items: stretch; flex-direction: column; }
  .topbar-title-wrap { min-width: 0; }
  .topbar-actions { min-width: 0; }
  .hero-grid > .hero-card { min-height: auto; padding: 28px; grid-template-columns: 1fr; }
  .hero-grid > .hero-card .book-visual { display: none; }
  .next-card { min-height: 350px; padding: 25px 22px; }
  .next-card::before { right: 20px; top: 24px; font-size: 22px; }
  .next-card .next-date-big { font-size: 42px; }
  .next-card > p:not(.next-date-big) { overflow-wrap: anywhere; }
  .learning-hero { min-height: 130px; padding: 22px; border-radius: 20px; }
  .learning-hero h3 { font-size: 18px; }
  .learning-hero > strong { font-size: 42px; }
  .learning-controls, .assignment-controls { grid-template-columns: 1fr; }
  .search-field { grid-column: auto; }
  .word-index-row { grid-template-columns: 1fr auto; gap: 5px 12px; }
  .word-index-row span { grid-column: 1 / -1; }
  .assignment-card-main { grid-template-columns: 46px 1fr; gap: 11px; padding: 13px; }
  .assignment-card-main > i { display: none; }
  .session-detail-card { width: 100%; min-height: 100%; max-height: 100%; border-radius: 0; padding: 18px; }
  .modal-backdrop:has(.session-detail-card) { padding: 0; }
  .composer-meta { align-items: stretch; flex-direction: column; }
  .composer-meta .primary-btn { justify-content: center; }
}
@media (prefers-reduced-motion: reduce) {
  .view, .session-tab-panel, .word-index-row, .next-card .status-dot { animation: none; transition: none; }
}

.sync-status { border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; background: var(--surface-solid); color: var(--muted); font: inherit; font-size: 11px; cursor: pointer; }
.sync-status.has-error { border-color: #d65f7b; color: #b63d5b; }
.snapshot-card { grid-column: 1 / -1; }
.snapshot-list { display: grid; gap: 8px; margin-top: 14px; max-height: 360px; overflow: auto; }
.snapshot-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-solid); }
.snapshot-row strong, .snapshot-row small { display: block; }
.snapshot-row small { margin-top: 3px; color: var(--muted); }
.snapshot-row button { white-space: nowrap; }
@media (max-width: 600px) {
  .sync-status { max-width: 145px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .snapshot-row { grid-template-columns: 1fr; }
}