/* JukuOS base styles. No external fonts, no CDN, no JavaScript framework. */

:root {
  --color-text: #203044;
  --color-muted: #536276;
  --color-background: #f3f6fa;
  --color-surface: #ffffff;
  --color-surface-soft: #f8fafc;
  --color-border: #cbd6e2;
  --color-accent: #194d79;
  --color-accent-hover: #103b60;
  --color-accent-soft: #eaf3fb;
  --color-focus: #a94d00;
  --color-notice: #eaf3fb;
  --color-warning: #fff3df;
  --color-error: #fff0ee;
  --color-success: #e7f5ed;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --radius-small: 7px;
  --radius-medium: 12px;
  --shadow-panel: 0 2px 12px rgb(23 51 78 / 5%);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--color-text);
  background-color: var(--color-background);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: var(--color-accent);
  text-underline-offset: 0.16em;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.site-name {
  margin: 0;
  font-size: 20px;
  font-weight: 750;
  letter-spacing: -0.03em;
  color: var(--color-accent);
}

.site-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-6) clamp(16px, 3vw, 32px);
}

.student-shell .site-main {
  max-width: 760px;
}

.student-shell .field > input:not([type="checkbox"]):not([type="radio"]) {
  width: min(100%, 28rem);
}

.site-footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 32px) var(--space-6);
  color: var(--color-muted);
  font-size: 13px;
}

.site-note {
  margin: 0;
}

.flash-list {
  margin: 0 0 var(--space-5);
  padding: 0;
  list-style: none;
}

.flash {
  margin-bottom: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-small);
  background-color: var(--color-notice);
}

.flash-warning {
  background-color: var(--color-warning);
  border-left-color: #a1600a;
}

.flash-error {
  background-color: var(--color-error);
  border-left-color: #ac2727;
}

.flash-success {
  background-color: var(--color-success);
  border-left-color: #227347;
}

.error-page {
  max-width: 680px;
  margin-inline: auto;
  padding: clamp(20px, 3vw, 32px);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-panel);
}

.error-code {
  margin: 0;
  color: var(--color-muted);
  font-size: 14px;
}

.error-title {
  margin: 4px 0 16px;
  font-size: 20px;
}

.error-hint,
.error-request-id {
  margin: 0 0 8px;
  color: var(--color-muted);
  font-size: 14px;
}

code {
  padding: 1px 6px;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 3px;
}

/* --- shared page frame and navigation --- */

.site-header {
  padding: var(--space-3) clamp(16px, 3vw, 32px);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2) var(--space-5);
  max-width: 1440px;
  margin: 0 auto;
}

.site-profile {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: end;
  gap: var(--space-2);
  min-width: 0;
}

.site-profile form {
  margin: 0;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
  min-width: 0;
  padding-top: var(--space-2);
  padding-bottom: var(--space-1);
  border-top: 1px solid var(--color-border);
}

.site-nav-shell {
  grid-column: 1 / -1;
  position: relative;
  min-width: 0;
}

.site-nav-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-right: var(--space-2);
  border-right: 1px solid var(--color-border);
}

.site-nav-group:not(:has(~ .site-nav-group > .site-link)) {
  padding-right: 0;
  border-right: 0;
}

.site-nav-group:not(:has(> .site-link)) {
  display: none;
}

.site-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: var(--space-1) var(--space-2);
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.site-link:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-border);
}

.site-user {
  font-size: 14px;
  color: var(--color-muted);
  white-space: nowrap;
}

.site-org {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-surface-soft);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

/* --- panels and forms --- */

.panel,
.form-panel {
  min-width: 0;
  padding: clamp(20px, 3vw, 32px);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-panel);
}

.panel + .panel,
.form-panel + .form-panel {
  margin-top: var(--space-4);
}

.form-panel {
  max-width: 440px;
}

.site-main > .form-panel:only-of-type {
  margin-inline: auto;
}

.form-panel-wide {
  max-width: 680px;
}

.reading-panel {
  max-width: 780px;
  margin-inline: auto;
}

.student-auth-panel {
  max-width: 520px;
  margin-inline: auto;
}

.decision-panel > p.field-hint:first-of-type,
.decision-panel > p.panel-note:first-of-type,
.decision-panel > form > p.field-hint {
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid #a1600a;
  border-radius: var(--radius-small);
  background-color: var(--color-warning);
  color: var(--color-text);
  font-size: 14px;
}

.panel-title,
.form-title {
  margin: 0 0 var(--space-4);
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.35;
}

.panel-subtitle {
  margin: var(--space-6) 0 var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
  font-size: 19px;
  line-height: 1.4;
}

.panel-note,
.form-note {
  margin: var(--space-4) 0;
  color: var(--color-muted);
  font-size: 14px;
}

.field {
  margin-bottom: var(--space-5);
}

.field-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 15px;
  font-weight: 700;
}

:where(input:not([type="hidden"]):not([type="checkbox"]):not([type="radio"]):not([type="file"]):not([type="range"]), select, textarea) {
  max-width: 100%;
  min-height: 44px;
  padding: 9px 11px;
  font: inherit;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

.field-input {
  width: 100%;
}

input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--color-accent);
  width: 18px;
  height: 18px;
}

.field-errors {
  margin: 6px 0 0;
  padding-left: 1.2em;
  color: #a3282d;
  font-size: 14px;
}

.field-hint {
  margin: 6px 0 var(--space-4);
  color: var(--color-muted);
  font-size: 13px;
}

.button-primary,
.button-quiet,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  max-width: 100%;
  padding: var(--space-2) var(--space-4);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-small);
  cursor: pointer;
}

.button-primary {
  color: #ffffff;
  background-color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.button-quiet,
.button-secondary {
  color: var(--color-accent);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
}

.button-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.button-quiet:hover,
.button-secondary:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.button-primary:disabled,
.button-quiet:disabled,
.button-secondary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.logout-everywhere {
  margin: 16px 0 0;
}

.summary-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 16px;
  margin: 16px 0 0;
}

.summary-list dt {
  color: var(--color-muted);
  font-size: 14px;
}

.summary-list dd {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

/* --- lists, tables and paging --- */

.panel-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
}

.panel-actions .button-primary {
  display: inline-flex;
}

.data-table {
  width: 100%;
  margin: var(--space-2) 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius-small);
  background-color: var(--color-surface);
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.data-table thead th {
  background-color: var(--color-surface-soft);
  color: var(--color-muted);
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody tr:nth-child(even) {
  background-color: var(--color-surface-soft);
}

.data-table tbody tr:last-child > * {
  border-bottom: 0;
}

.data-table tbody > tr:only-child > td[colspan]:not(:empty) {
  padding: var(--space-5);
  color: var(--color-muted);
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}

.row-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

/* 明細詳細: 区切りと、確認を伴う操作の縦並び。 */
.statement-detail > h2.panel-title {
  margin: var(--space-6) 0 var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.statement-detail form {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 0;
  margin-block: var(--space-4);
}

.statement-detail form > .form-note,
.statement-detail form > label {
  margin: 0;
}

.statement-detail form > :is(textarea, select) {
  width: 100%;
}

.statement-detail form > label:has(> input[type="checkbox"]) {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  min-height: 44px;
}

.statement-detail form > label > input[type="checkbox"] {
  flex: none;
  margin: 0.3em 0 0;
}

.statement-detail .row-actions {
  display: grid;
  gap: var(--space-5);
  margin-block: var(--space-4);
}

.statement-detail .row-actions > form {
  margin-block: 0;
}

.pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-4) 0 var(--space-2);
}

.pager a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-surface);
  font-weight: 650;
  text-decoration: none;
}

.pager a:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.empty-state {
  margin: var(--space-4) 0;
  padding: var(--space-5);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-surface-soft);
  color: var(--color-muted);
}

.result-summary {
  margin: var(--space-4) 0 var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-small);
  background-color: var(--color-accent-soft);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
}

.search-form {
  display: grid;
  grid-template-columns: minmax(0, 28rem) auto;
  gap: var(--space-2);
  align-items: end;
  justify-content: start;
}

.search-form .field-label {
  grid-column: 1 / -1;
  margin: 0;
}

.search-form .field-input {
  min-width: 0;
}

.row-tag {
  padding: 1px 6px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 12px;
  color: var(--color-muted);
  white-space: nowrap;
}

.row-note {
  font-size: 12px;
  color: var(--color-muted);
}

.field-group {
  margin: var(--space-4) 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

.field-group-title {
  padding: 0 var(--space-1);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

/* --- juku context --- */

.choice-list {
  margin: 8px 0 16px;
  padding: 0;
  list-style: none;
}

.choice {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.choice-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.choice-name {
  font-weight: 700;
}

.choice-meta {
  font-size: 12px;
  color: var(--color-muted);
}

fieldset.field {
  min-width: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

fieldset.field legend {
  padding: 0 var(--space-1);
}

@media (max-width: 720px) {
  .site-main {
    padding: var(--space-4);
  }

  .site-header-inner {
    gap: var(--space-2);
  }

  .site-user {
    white-space: normal;
    overflow-wrap: anywhere;
    text-align: right;
  }

  .site-nav {
    flex-wrap: nowrap;
    max-width: 100%;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scrollbar-width: thin;
  }

  .site-nav-shell.has-more-right::after,
  .site-nav-shell.has-more-left::before {
    position: absolute;
    top: 1px;
    bottom: 0;
    width: 42px;
    content: "";
    pointer-events: none;
  }

  .site-nav-shell.has-more-right::after {
    right: 0;
    background: linear-gradient(to right, transparent, var(--color-surface) 90%);
  }

  .site-nav-shell.has-more-left::before {
    left: 0;
    background: linear-gradient(to left, transparent, var(--color-surface) 90%);
  }

  .site-nav-group {
    flex: none;
    flex-wrap: nowrap;
  }

  .site-link,
  .site-org {
    flex: none;
    min-height: 44px;
  }

  .panel,
  .form-panel {
    padding: var(--space-4);
  }

  .panel:has(.data-table):not(:has(.table-scroll, .fee-table-scroll)) {
    overflow-x: auto;
  }

  .search-form {
    grid-template-columns: minmax(0, 1fr);
  }

  .search-form .field-label {
    grid-column: 1;
  }

  .search-form .button-primary {
    justify-self: start;
  }

  .summary-list {
    grid-template-columns: minmax(7rem, max-content) minmax(0, 1fr);
  }

  .data-table:has(tr > :nth-child(4)) {
    min-width: 640px;
  }

  .data-table:has(tr > :nth-child(7)) {
    min-width: 820px;
  }

  .data-table td {
    vertical-align: middle;
  }

  .site-main .form-note a,
  .site-main .data-table a,
  .site-main .choice-list a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }
}

/* 一問一答 (practice) */
.practice-list { list-style: none; padding: 0; margin: 0 0 1rem; }
.practice-list li { padding: 0.25rem 0; border-bottom: 1px solid var(--color-border); }
.practice-list li a { display: inline-flex; align-items: center; min-height: 44px; }
.practice-choice { display: flex; align-items: center; gap: 0.5rem; min-height: 44px; padding: 0.35rem 0; }
.practice-card { max-width: 40rem; margin-inline: auto; }
.practice-prompt { font-size: 1.25rem; line-height: 1.7; margin: 1rem 0 1.5rem; }
/* 誤答プリント: one question to tick per row. */
.review-choice { display: grid; grid-template-columns: auto 1fr; gap: 0.25rem 0.75rem; align-items: start; padding: 0.75rem 0; border-bottom: 1px solid #e5e7eb; }
.review-choice input { margin-top: 0.3rem; }
.review-choice .form-note { grid-column: 2; margin: 0; }
.review-choice .review-choice-prompt { grid-column: 2; font-size: 1.05rem; line-height: 1.6; }
.review-items li { margin: 0.35rem 0; line-height: 1.6; }
.practice-answer > summary { display: inline-flex; align-items: center; min-height: 44px; cursor: pointer; list-style: none; }
.practice-answer > summary::-webkit-details-marker { display: none; }
.practice-answer-text { font-size: 1.25rem; font-weight: 700; margin: 1rem 0; }
.practice-grade { display: flex; gap: 1rem; margin: 1rem 0; }
.practice-grade button { flex: 1; min-height: 3rem; font-size: 1.1rem; }
.practice-tree { list-style: none; margin: 0; padding-left: 0; }
.practice-tree .practice-tree { padding-left: 1.25rem; }
.practice-tree summary { min-height: 44px; cursor: pointer; padding: 0.35rem 0; }
.practice-choice .form-note { margin: 0; }
.practice-choice-inline { display: inline-flex; align-items: center; gap: 0.5rem; min-height: 44px; margin-right: 1rem; padding: 0.25rem 0; }
.practice-pages { margin: 0.5rem 0 1rem; }
.practice-pages-toggle { min-height: 44px; cursor: pointer; color: var(--color-accent); padding: 0.5rem 0; }
.practice-page-row { padding: 0.35rem 0; border-bottom: 1px solid #e5e7eb; }
.practice-page-row input { width: 100%; max-width: 16rem; }
.practice-card .form-note a,
.student-shell .site-main a:not(.button-primary):not(.button-quiet) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.student-shell .practice-list li {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-surface-soft);
  margin-bottom: var(--space-2);
}

@media (max-width: 520px) {
  .student-shell .panel-actions .button-primary,
  .student-shell .panel-actions .button-quiet {
    width: 100%;
  }
}

/* The student entrance loads no script, so the edge cue for a scrolling
   menu never appears there. Wrap its menu instead of scrolling it. */
@media (max-width: 720px) {
  .student-shell .site-nav {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .student-shell .site-nav-group {
    flex: 0 1 auto;
    flex-wrap: wrap;
    min-width: 0;
  }
}

/* 仮カレンダー. */
.calendar-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin: 0.75rem 0 1rem; }
.calendar-actions form { margin: 0; }
.calendar-inline { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; margin: 0.75rem 0; }
.calendar-inline .field-input { width: auto; }
.calendar-cancelled td { color: #6b7280; text-decoration: line-through; }
.calendar-note { white-space: pre-wrap; }
.calendar-warning {
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid #b91c1c;
  border-radius: var(--radius-small);
  background-color: var(--color-error);
}
.calendar-students { font-size: 0.9em; }
.calendar-attendee-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.calendar-attendee-actions form { margin: 0; }
.calendar-check { display: flex; gap: 0.5rem; align-items: center; }
.calendar-check .field-label { margin: 0; }
.calendar-lengths { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0; border: 0; }
.calendar-lengths legend { font-weight: 600; margin-bottom: 0.25rem; }
.calendar-lengths label { display: inline-flex; gap: 0.35rem; align-items: center; min-height: 44px; padding: 0.35rem 0.75rem; border: 1px solid var(--color-border); border-radius: 4px; cursor: pointer; background: var(--color-surface); }
.calendar-lengths input:checked + span { font-weight: 700; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* 仮カレンダー: the week view (2026-09-19). One minute is one pixel. */
.c-blue { --c: #1d4ed8; --t: #dfe6fa; }
.c-orange { --c: #b45309; --t: #f4e7dd; }
.c-green { --c: #15803d; --t: #deede4; }
.c-purple { --c: #7e22ce; --t: #ede0f8; }
.c-red { --c: #b91c1c; --t: #f5dfdf; }
.c-teal { --c: #0f766e; --t: #ddeceb; }
.c-pink { --c: #be185d; --t: #f6dfe8; }
.c-indigo { --c: #4338ca; --t: #e5e3f8; }
.c-olive { --c: #4d7c0f; --t: #e6eddd; }
.c-brown { --c: #7c2d12; --t: #ede2de; }
.c-gray { --c: #4b5563; --t: #e6e7e9; }
/* The week needs the width: the page around it widens on this screen only. */
.site-main:has(.wk-panel) { max-width: 1440px; }
.wk-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; margin: 0.5rem 0; }
.wk-jump { display: flex; gap: 0.5rem; align-items: center; margin: 0; }
.wk-jump .field-input { width: auto; }
.wk-help {
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-small);
  background-color: var(--color-notice);
  font-size: 14px;
}
.wk-legend { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; list-style: none; margin: 0.5rem 0; padding: 0; font-size: 14px; }
.wk-legend li { display: inline-flex; gap: 0.35rem; align-items: center; }
.wk-swatch { display: inline-block; width: 1.1rem; height: 1.1rem; border-radius: 3px; background: var(--c); }
.wk-swatch-tentative { background: #eef0f3; border: 2px dashed #4b5563; }
.wk-swatch-confirmed { background: #4b5563; }
.wk-status { min-height: 1.7em; margin: 0.25rem 0; font-size: 14px; }
/* A drop's answer stays in sight while the grid is scrolled. */
.wk-status:not(:empty) { position: sticky; top: 0; z-index: 10; padding: 6px 10px; border: 1px solid var(--color-border); border-radius: 4px; background: var(--color-notice); }
.wk-status.is-error:not(:empty) { background: var(--color-error); }
.wk-status.is-error { color: #9b1c1c; font-weight: 700; }
.wk-status.is-ok { color: #14532d; }
.wk-scroll { overflow-x: auto; border: 1px solid var(--color-border); border-radius: 4px; background: var(--color-surface); }
.wk { min-width: 680px; position: relative; }
.wk-row { display: grid; grid-template-columns: 44px repeat(7, minmax(88px, 1fr)); }
.wk-head { position: sticky; top: 0; z-index: 3; background: var(--color-surface); border-bottom: 1px solid var(--color-border); }
.wk-dayhead { display: flex; justify-content: space-between; align-items: center; padding: 4px 6px; font-size: 14px; font-weight: 600; border-left: 1px solid var(--color-border); }
.wk-dayhead.is-today { background: #fff7d6; }
.wk-dayhead.is-weekend { color: #7c2d12; }
.wk-add { text-decoration: none; font-weight: 700; padding: 0 6px; border-radius: 3px; }
.wk-add:hover, .wk-add:focus { background: var(--color-notice); }
.wk-allday { border-bottom: 2px solid var(--color-border); }
.wk-gutter { font-size: 12px; color: var(--color-muted); }
.wk-gutter-label { padding: 4px; }
.wk-allday-cell { min-height: 2.2rem; padding: 2px; border-left: 1px solid var(--color-border); display: flex; flex-direction: column; gap: 2px; cursor: copy; }
.wk-times { position: relative; }
.wk-hour { position: absolute; right: 4px; transform: translateY(-50%); line-height: 1; }
.wk-hour:first-child { transform: none; }
.wk-col { position: relative; border-left: 1px solid var(--color-border); cursor: copy;
  background-image: linear-gradient(to bottom, #d5dae2 1px, transparent 1px), linear-gradient(to bottom, #eef0f3 1px, transparent 1px);
  background-size: 100% 60px, 100% 30px; }
.wk-col.is-weekend, .wk-allday-cell.is-weekend { background-color: #fbfaf7; }
.wk-col.is-today { background-color: #fffcf0; }
.wk-ev, .wk-chip { display: block; box-sizing: border-box; overflow: hidden; border-radius: 4px; text-decoration: none; font-size: 12px; line-height: 1.3; color: #ffffff; background: var(--c); border: 2px solid var(--c); cursor: pointer; }
.wk-ev { position: absolute; padding: 1px 4px; min-height: 18px; z-index: 1; }
.wk-ev:hover, .wk-chip:hover { filter: brightness(1.08); }
.wk-ev:focus-visible, .wk-chip:focus-visible { outline: 3px solid #f59e0b; outline-offset: 1px; z-index: 2; }
.wk-ev.is-tentative, .wk-chip.is-tentative { color: #1f2430; background: var(--t); border-style: dashed; }
.wk-ev.is-shared, .wk-chip.is-shared { cursor: default; }
.wk-ev[data-draggable], .wk-chip[data-draggable] { cursor: grab; }
.wk-chip { padding: 1px 4px; white-space: nowrap; text-overflow: ellipsis; }
.wk-ev-time { display: block; font-weight: 700; white-space: nowrap; }
.wk-ev-title { display: block; overflow: hidden; text-overflow: ellipsis; }
.wk-ev-teacher { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; opacity: 0.95; }
.wk-chip .wk-ev-teacher { display: inline; margin-left: 0.25rem; }
.wk-ev-students { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 11px; }
.wk-chip .wk-ev-students { display: inline; margin-left: 0.25rem; }
.wk-badge { display: inline-block; margin-right: 2px; padding: 0 3px; border: 1px solid currentColor; border-radius: 2px; font-size: 11px; font-weight: 700; }
.wk-resize { position: absolute; left: 0; right: 0; bottom: 0; height: 7px; cursor: ns-resize; }
.wk.is-dragging, .wk.is-dragging * { cursor: grabbing !important; user-select: none; }
.wk-ev.is-dragging, .wk-chip.is-dragging { z-index: 5; opacity: 0.9; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25); }
.wk-ev.is-saving, .wk-chip.is-saving { opacity: 0.6; }
.wk-teacher-cell { display: inline-flex; align-items: center; gap: 0.4rem; }
@media (max-width: 640px) {
  .wk-panel { padding-left: 8px; padding-right: 8px; }
}

/* PDF仕分け (adr/0017) */
.filing-tabs { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-4) 0 var(--space-5); }
.filing-tabs a,
.filing-tabs strong {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  text-decoration: none;
}
.filing-tabs strong { color: #ffffff; background-color: var(--color-accent); border-color: var(--color-accent); }
.filing-tabs a:hover { background-color: var(--color-accent-soft); border-color: var(--color-accent); }
.filing-warning {
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid #b91c1c;
  border-radius: var(--radius-small);
  background-color: var(--color-error);
}
.filing-path { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; overflow-wrap: anywhere; }
.filing-choice { display: flex; align-items: center; gap: var(--space-2); min-height: 44px; margin: var(--space-1) 0; }
.panel-subform { margin-top: 1.25rem; }
/* 料金表: 紙の学費一覧表の形で入れる (adr/0019, 2026-09-22). */
.site-main:has(.fee-rate-table) { max-width: 1440px; }
.fee-table-scroll {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
}
.fee-rate-table { min-width: 1100px; }
.fee-rate-table th, .fee-rate-table td { padding: 6px; }
.fee-rate-table .field-input { min-width: 5.5rem; padding: 6px; font-size: 15px; }
.fee-rate-table td:first-child { white-space: nowrap; }
.fee-table-grades { min-width: 23rem; }
.fee-table-choice { display: inline-block; margin-right: 0.5rem; white-space: nowrap; }
.plan-sibling-list { list-style: none; padding-left: 0; margin: 0.25rem 0 0.75rem; }
.fee-table-clashes {
  margin: var(--space-3) 0;
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid #b45309;
  border-radius: var(--radius-small);
  background-color: var(--color-warning);
}
/* 一問一答テストを作る (2026-09-22): the textbook-page box sits right after
   its 分野 and shows only while that 分野 or its 学年 is ticked. */
.quiz-subject { margin: 0.5rem 0 1rem; }
.quiz-subject-title { min-height: 44px; cursor: pointer; font-weight: 700; padding: 0.35rem 0; }
.quiz-builder > form > .field-group-title {
  margin-top: var(--space-6);
  padding: var(--space-2) var(--space-3);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-small);
  background-color: var(--color-accent-soft);
}
.quiz-builder input[name="title"] { width: 100%; }
.quiz-page-box { display: none; margin-left: 0.75rem; gap: 0.35rem; align-items: center; }
.quiz-page-box input { width: 10rem; }
summary:has(> label input[name="node"]:checked) > .quiz-page-box,
li:has(> label input[name="node"]:checked) > .quiz-page-box,
details:has(> summary > label input[name="node"]:checked) .quiz-page-box { display: inline-flex; }
/* 年間費用表 (adr/0019 stage 3, 2026-09-22): months down, the paper's labels across. */
.site-main:has(.annual-plan-sheet) { max-width: 1440px; }
.annual-plan-sheet { min-width: 1100px; }
.annual-plan-sheet th, .annual-plan-sheet td { padding: 6px; vertical-align: top; }
.annual-plan-sheet th[scope="row"], .annual-plan-sheet td.annual-plan-money { white-space: nowrap; }
.annual-plan-sheet td.annual-plan-money { text-align: right; }
.plan-price-fields { display: flex; flex-wrap: wrap; gap: 0 1rem; align-items: flex-end; }
.plan-missing { color: #b42318; }
.annual-plan-sheet .field-input { min-width: 6.5rem; padding: 6px; font-size: 15px; }
.annual-plan-sheet thead .field-input { display: block; margin-bottom: 4px; }
.annual-plan-sheet input[readonly] { background-color: var(--color-border); }

/* 問題の図 (adr/0021) */
.question-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: var(--space-3) var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-surface-soft);
}
.question-filters .field {
  min-width: min(100%, 12rem);
  margin: 0;
}
.question-filters .row-actions {
  min-height: 44px;
}
.question-filters .row-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.question-filters .field-input {
  width: 100%;
  min-width: 10rem;
}
.question-bulk-figure {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background-color: var(--color-surface-soft);
}
.question-bulk-figure summary {
  min-height: 44px;
  cursor: pointer;
}
.question-figures {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.75rem 0;
}
.question-figure {
  margin: 0;
}
.question-figure img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  border: 1px solid #d0d7de;
  background: #fff;
}
.question-figure figcaption {
  font-size: 0.85rem;
  color: #57606a;
  margin-top: 0.25rem;
}
.question-figures-small .question-figure img {
  max-height: 8rem;
}
.question-figure-thumb {
  display: block;
  max-width: 100%;
  max-height: 5rem;
  width: auto;
  height: auto;
  border: 1px solid #d0d7de;
  margin-bottom: 0.5rem;
}
.question-figures-preview .question-figure img {
  max-height: 16rem;
}

/* --- おすすめUI（2026-09-24。画面見本: 利用者の JukuOS_UI案_2026-09-24/おすすめ版） --- */
.button-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  max-width: 100%;
  padding: var(--space-2) var(--space-4);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  color: #ac2727;
  background-color: var(--color-surface);
  border: 1px solid #ac2727;
  border-radius: var(--radius-small);
  cursor: pointer;
}
.button-danger:hover { background-color: var(--color-error); }
.button-caution {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  background-color: var(--color-warning);
  border: 1px solid #a1600a;
  border-radius: var(--radius-small);
  cursor: pointer;
}
.panel-danger { background-color: var(--color-error); border-color: #ac2727; }
.panel-caution { background-color: var(--color-warning); border-color: #a1600a; }
.panel-danger .form-note, .panel-caution .form-note { color: var(--color-text); }
.page-sub { margin: calc(var(--space-4) * -1 + 4px) 0 var(--space-4); color: var(--color-muted); }
.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: var(--space-4);
  align-items: start;
}
.two-column > .panel + .panel { margin-top: 0; }
@media (max-width: 860px) {
  .two-column { grid-template-columns: 1fr; }
}
.amount-large { margin: 0 0 var(--space-3); font-size: 34px; font-weight: 750; line-height: 1.2; }
.amount-label { margin: 0; color: var(--color-muted); font-size: 14px; }
.steps { list-style: none; margin: 0; padding: 0; }
.step { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: var(--space-3); padding: var(--space-4) 0; border-top: 1px solid var(--color-border); }
.step:first-child { border-top: 0; padding-top: 0; }
.step-mark {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 20px;
  background-color: var(--color-surface-soft); border: 1px solid var(--color-border);
  color: var(--color-muted); font-weight: 750;
}
.step-done .step-mark { background-color: var(--color-success); border-color: #227347; color: #227347; }
.step-now .step-mark { background-color: var(--color-accent); border-color: var(--color-accent); color: #ffffff; }
.step-title { margin: 6px 0 var(--space-2); font-size: 19px; line-height: 1.4; }
.step p { margin: var(--space-1) 0; }
.step .form-note { margin: var(--space-2) 0; }
.notice-box {
  margin: var(--space-3) 0;
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-small);
  background-color: var(--color-notice);
}
.notice-box-warning { border-left-color: #a1600a; background-color: var(--color-warning); }
.notice-box-success { border-left-color: #227347; background-color: var(--color-success); }
.more-details { margin: var(--space-2) 0; }
.more-details > summary { min-height: 36px; cursor: pointer; font-weight: 700; color: var(--color-accent); padding: var(--space-1) 0; }
.more-details[open] > summary { margin-bottom: var(--space-2); }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); margin: var(--space-2) 0; }
.row-highlight > td, .row-highlight > th { background-color: var(--color-warning) !important; }
.page-jumps {
  position: sticky; top: 0; z-index: 5;
  display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3);
  margin: calc(var(--space-6) * -1) calc(clamp(16px, 3vw, 32px) * -1) var(--space-4);
  padding: var(--space-2) clamp(16px, 3vw, 32px);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.page-jumps a { display: inline-flex; align-items: center; min-height: 40px; font-weight: 700; text-decoration: none; }
.page-summary { margin: var(--space-2) 0 0; }
section[id] { scroll-margin-top: 64px; }
.button-row [hidden], [data-existing-hint][hidden] { display: none !important; }
/* メニュー（2026-09-24）: 塾名は上に大きく、毎日の項目はバーに、残りは「その他のメニュー」 */
.site-brand { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-4); min-width: 0; }
.site-org { gap: var(--space-2); min-height: 40px; padding: var(--space-1) var(--space-3); border-color: var(--color-accent); background-color: var(--color-accent-soft); font-size: 14px; white-space: normal; }
.site-org-label { color: var(--color-muted); font-size: 12px; font-weight: 700; }
.site-org-name { font-size: 17px; font-weight: 750; }
.site-org-switch { font-size: 13px; font-weight: 700; }
.site-nav .site-link { font-size: 15px; }
.site-link-current { color: var(--color-text); border-bottom: 3px solid var(--color-accent); border-radius: var(--radius-small) var(--radius-small) 0 0; }
.site-more { margin-top: var(--space-1); border-top: 1px solid var(--color-border); }
.site-more > summary { display: inline-flex; align-items: center; min-height: 40px; padding: 0 var(--space-2); cursor: pointer; color: var(--color-accent); font-size: 14px; font-weight: 700; }
.site-more-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: var(--space-2) var(--space-5); padding: var(--space-2) var(--space-2) var(--space-3); }
.site-more-title { margin: 0 0 var(--space-1); color: var(--color-muted); font-size: 13px; font-weight: 700; }
.site-more-group ul { margin: 0; padding: 0; list-style: none; }
.site-more-link { display: inline-flex; align-items: center; min-height: 36px; font-size: 14px; font-weight: 650; }
@media (max-width: 720px) {
  .site-more-link { min-height: 44px; }
}
/* ホーム（2026-09-24）: 今日やること */
.home-main > .panel + .panel, .home-side > .panel + .panel { margin-top: var(--space-4); }
.home-box-title { display: flex; align-items: center; gap: var(--space-2); margin: 0 0 var(--space-3); font-size: 19px; }
.count-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 1.8em; padding: 0 8px; border-radius: 999px; background-color: var(--color-warning); font-size: 15px; font-weight: 750; }
.home-job { display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); padding: var(--space-3) 0; border-top: 1px solid var(--color-border); }
.home-job:first-of-type { border-top: 0; }
.home-job .form-note { margin: 2px 0 0; }
.home-lesson { margin: 0 0 var(--space-2); padding: var(--space-3); border-radius: var(--radius-small); background-color: var(--color-accent-soft); }
.home-lesson strong { display: block; font-size: 17px; }
.row-tag-warning { background-color: var(--color-warning); }
.row-tag-success { background-color: var(--color-success); }
@media (max-width: 720px) {
  .home-job { flex-direction: column; align-items: stretch; }
}
/* 一問一答（2026-09-24）: 実データ2,817問で測った大きさ。問題文が40字をこえたら、
   答えが30字をこえたら19px。改行はそのまま。正解は緑・不正解は赤で、強さは同じ。
   生徒の画面はページ内のstyle・scriptを使えないので、すべてここで決める。 */
.practice-prompt { font-size: 24px; line-height: 1.6; margin: 0.75rem 0 1.25rem; white-space: pre-line; overflow-wrap: anywhere; }
.practice-prompt-long { font-size: 19px; }
.practice-answer > summary { display: flex; justify-content: center; width: 100%; min-height: 56px; font-size: 19px; }
.practice-answer[open] > summary { min-height: 40px; margin-bottom: var(--space-2); font-size: 15px; color: var(--color-accent); background-color: var(--color-surface); border-color: var(--color-border); }
.practice-answer-text { margin: 0 0 var(--space-3); padding: var(--space-3) var(--space-4); border-radius: var(--radius-small); background-color: var(--color-accent-soft); font-size: 24px; font-weight: 700; line-height: 1.6; white-space: pre-line; overflow-wrap: anywhere; }
.practice-answer-long { font-size: 19px; font-weight: 600; }
.practice-grade-hint { margin: 0 0 var(--space-2); color: var(--color-muted); font-size: 14px; }
.practice-grade { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); margin: 0 0 var(--space-2); }
.practice-grade button { min-height: 60px; padding: var(--space-2); border-radius: var(--radius-small); font-family: inherit; font-size: 21px; font-weight: 750; cursor: pointer; }
.practice-correct { color: #1d6b3f; background-color: var(--color-success); border: 2px solid #227347; }
.practice-incorrect { color: #ac2727; background-color: var(--color-error); border: 2px solid #ac2727; }
.practice-quit { margin: var(--space-6) 0 0; text-align: center; }
/* 答えを開いたら上を詰めて、正解・不正解を1画面目に入れる */
.app-shell:has(.practice-answer[open]) .site-header,
.student-shell:has(.practice-answer[open]) .site-header { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.app-shell:has(.practice-answer[open]) .site-main,
.student-shell:has(.practice-answer[open]) .site-main { padding-top: var(--space-3); }
.practice-card:has(.practice-answer[open]) { padding-top: var(--space-4); }
/* 生徒のホーム: ボタンを幅いっぱいに */
.student-home .panel-actions { display: block; }
.student-home .panel-actions .button-primary,
.student-home .panel-actions .button-quiet { display: flex; width: 100%; min-height: 56px; font-size: 18px; }
/* 上部の塾名: 狭い画面では折り返し、利用者名と重ならない */
.site-org { max-width: 100%; flex-wrap: wrap; }
@media (max-width: 520px) {
  .site-org-label { display: none; }
  .site-header-inner { grid-template-columns: auto minmax(0, 1fr); }
  .site-brand { display: contents; }
  .site-header-inner > .site-brand > .site-name { grid-row: 1; grid-column: 1; }
  .site-header-inner > .site-profile { grid-row: 1; grid-column: 2; }
  .site-header-inner > .site-brand > .site-org { grid-row: 2; grid-column: 1 / -1; justify-self: start; }
}
.statement-detail > h2.panel-title:first-child { margin-top: 0; padding-top: 0; border-top: 0; }