/* Reuse the basic drill styling for consistency */
@import url('../../../assets/site.css');

:root {
  --q-bg: var(--surface);
  --q-border: var(--border);
  --q-text: var(--text);
  --q-muted: var(--muted);
  --q-accent: var(--accent);
  --ok: #16a34a;
  --ng: #dc2626;
  --page: color-mix(in oklab, #ffffff 94%, var(--bg) 6%);
  --header-surface: color-mix(in oklab, var(--surface) 96%, #ffffff 4%);
  --panel-elevated: color-mix(in oklab, var(--surface) 98%, #ffffff 2%);
  --panel-interactive: color-mix(in oklab, #f8fafc 86%, var(--surface) 14%);
  --focus-ring: color-mix(in oklab, var(--accent) 80%, #1f2937 20%);
}

:root.dark {
  --page: color-mix(in oklab, var(--bg) 92%, #020617 8%);
  --header-surface: color-mix(in oklab, var(--surface) 88%, transparent);
  --panel-elevated: color-mix(in oklab, var(--surface) 94%, var(--bg) 6%);
  --panel-interactive: color-mix(in oklab, var(--surface) 90%, var(--bg) 10%);
  --focus-ring: color-mix(in oklab, var(--accent) 70%, var(--text) 30%);
}

body { background: var(--page); color: var(--q-text); }

.practice-header { background: var(--header-surface); border-bottom: 1px solid color-mix(in oklab, var(--q-border) 70%, transparent); backdrop-filter: saturate(1.2) blur(8px); box-shadow: 0 12px 26px rgba(2, 6, 23, .18); }
.practice-header__inner { max-width: 960px; margin: 0 auto; padding: 12px 16px; display:flex; flex-direction:column; gap: 12px; }
.practice-header__top { display:flex; align-items:center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.practice-header__brand { display:flex; gap:8px; align-items:baseline; }
.practice-header__badge { font-size: 12px; color: color-mix(in oklab, var(--q-text) 60%, var(--q-muted) 40%); background: color-mix(in oklab, var(--q-accent) 22%, transparent); padding: 2px 6px; border-radius: 999px; letter-spacing: .4px; text-transform: uppercase; }
.practice-header__title { font-weight: 700; font-size: 18px; }
.practice-header__nav { margin-top: 2px; display:flex; gap:12px; flex-wrap:wrap; }
.practice-header__link { color: var(--q-text); text-decoration:none; padding:4px 8px; border-radius:8px; border:1px solid transparent; transition: background .2s ease, border-color .2s ease, color .2s ease; }
.practice-header__link:hover,
.practice-header__link:focus-visible { background: color-mix(in oklab, var(--panel-interactive) 60%, var(--q-accent) 40%); border-color: color-mix(in oklab, var(--q-accent) 55%, var(--q-border) 45%); color: #fff; outline: none; }
.practice-header__link:focus-visible { box-shadow: 0 0 0 2px color-mix(in oklab, var(--focus-ring) 60%, transparent); }
.practice-header__link.is-active { border-color: color-mix(in oklab, var(--q-accent) 40%, var(--q-border) 60%); background: color-mix(in oklab, var(--panel-interactive) 65%, var(--q-accent) 35%); }

.container { max-width: 960px; margin: 0 auto; padding: 16px; }
.intro { margin: 8px 0 12px; color: var(--q-muted); }

.card { background: var(--panel-elevated); border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); border-radius: 14px; padding: 14px; box-shadow: var(--shadow); }
.controls .control-row { display:flex; gap: 12px; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.controls .control-group { display:flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.controls .control-nav { flex-wrap: wrap; }
.controls .label { color: var(--q-muted); }
.check { display:inline-flex; gap:6px; align-items:center; }

.switch { position: relative; display: inline-flex; align-items: center; gap: 8px; }
.switch .slider { width: 36px; height: 20px; background: #475569; border-radius: 12px; position: relative; display:inline-block; vertical-align:middle; }
.switch input { display:none; }
.switch input:checked + .slider { background: #16a34a; }
.switch .switch-label { color: var(--q-muted); }

.paginator { display:flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.page-chip { background: transparent; border:1px solid var(--q-border); border-radius: 8px; padding: 4px 8px; color: var(--q-text); }
.page-chip.active { background: rgba(99,102,241,.12); border-color: var(--q-accent); }
.page-gap { color: var(--q-muted); padding: 4px 6px; }

.quiz { margin-top: 12px; }
.quiz-head { display:flex; justify-content: space-between; align-items: center; }
.q-index { font-weight:700; }
.q-category.tag { font-size:12px; color: var(--q-muted); border:1px solid var(--q-border); padding:2px 6px; border-radius:6px; }
.q-text { margin: 10px 0; font-size: 18px; line-height: 1.6; }

.choices { list-style:none; padding:0; margin:0; display:flex; flex-direction: column; gap: 10px; }
.choice { display:flex; gap:10px; align-items:center; border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); border-radius: 10px; padding: 10px 12px; cursor: pointer; background: var(--panel-interactive); transition: border-color .2s ease, background .2s ease, box-shadow .2s ease; }
.choice .num { width: 2.4em; color: var(--q-muted); text-align: right; }
.choice .label { flex:1; }
.choice input { display:none; }
.choice:hover { box-shadow: 0 6px 18px rgba(15, 23, 42, .24); }
.choice.selected { border-color: color-mix(in oklab, var(--q-accent) 70%, var(--q-border) 30%); background: color-mix(in oklab, var(--panel-interactive) 55%, var(--q-accent) 45%); box-shadow: 0 0 0 2px color-mix(in oklab, var(--focus-ring) 45%, transparent); }
.choice.correct { border-color: color-mix(in oklab, var(--ok) 70%, var(--q-border) 30%); background: color-mix(in oklab, var(--panel-interactive) 45%, rgba(22,163,74,0.4) 55%); }
.choice.incorrect { border-color: color-mix(in oklab, var(--ng) 70%, var(--q-border) 30%); background: color-mix(in oklab, var(--panel-interactive) 50%, rgba(220,38,38,0.36) 50%); }

.actions { margin-top: 8px; display:flex; align-items:center; justify-content: center; gap: 10px; flex-wrap: wrap; }
.btn { border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); background: var(--panel-interactive); color: var(--q-text); border-radius: 10px; padding: 8px 12px; transition: background .2s ease, border-color .2s ease, box-shadow .2s ease; }
.btn:hover { background: color-mix(in oklab, var(--panel-interactive) 55%, var(--q-accent) 45%); border-color: color-mix(in oklab, var(--q-accent) 45%, var(--q-border) 55%); box-shadow: 0 4px 16px rgba(15,23,42,.22); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 2px color-mix(in oklab, var(--focus-ring) 60%, transparent); }
.btn--ghost { background: transparent; }
.btn--primary { border-color: color-mix(in oklab, var(--q-accent) 70%, var(--q-border) 30%); background: linear-gradient(135deg, color-mix(in oklab, var(--q-accent) 80%, #0f172a), color-mix(in oklab, var(--q-accent) 60%, var(--q-text) 40%)); color: #fff; }

.pill { border-radius: 999px; border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); padding: 6px 12px; font-size: 12px; background: var(--panel-interactive); }
.pill--primary { border-color: color-mix(in oklab, var(--q-accent) 60%, var(--q-border) 40%); color: var(--q-accent); background: color-mix(in oklab, var(--panel-interactive) 45%, var(--q-accent) 55%); }
.pill--secondary { color: var(--q-muted); }
.practice-shortcuts { display:flex; gap:8px; justify-content:flex-end; }

.explain { margin-top: 8px; border-top: 1px dashed var(--q-border); padding-top: 8px; }
.explain summary { cursor: pointer; }
.explain-body { color: var(--q-muted); line-height: 1.7; }

.dialog { border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); border-radius: 16px; padding: 16px; background: var(--panel-elevated); box-shadow: var(--shadow); }
.dialog::backdrop { background: rgba(2,6,23,.6); }
.dialog h3 { margin-top: 0; }
.history-list { display:flex; flex-direction:column; gap:8px; max-height: 60vh; overflow:auto; }
.history-item { display:flex; align-items:center; justify-content: space-between; gap: 8px; border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); border-radius: 10px; padding: 10px 12px; cursor: pointer; background: var(--panel-interactive); transition: border-color .2s ease, background .2s ease, box-shadow .2s ease; }
.history-item:hover { border-color: color-mix(in oklab, var(--q-accent) 50%, var(--q-border) 50%); background: color-mix(in oklab, var(--panel-interactive) 55%, var(--q-accent) 45%); box-shadow: 0 6px 18px rgba(15,23,42,.2); }
.history-item .info { display:flex; flex-direction:column; }
.history-item .meta { color: var(--q-muted); font-size: 12px; }
.history-item .result.ok { color: var(--ok); font-weight: 700; }
.history-item .result.ng { color: var(--ng); font-weight: 700; }

.nav-jump input { width: 6em; padding: 6px 8px; border-radius: 8px; border:1px solid color-mix(in oklab, var(--q-border) 85%, transparent); background: var(--panel-interactive); color: var(--q-text); transition: border-color .2s ease, box-shadow .2s ease; }
.nav-jump input:focus-visible { outline: none; border-color: color-mix(in oklab, var(--q-accent) 60%, var(--q-border) 40%); box-shadow: 0 0 0 2px color-mix(in oklab, var(--focus-ring) 55%, transparent); }

/* 採点結果（○/× と正解表示） */
.result-status{ display:none; align-items:center; gap:10px; margin:6px 0 4px }
.result-status .mark{ font-weight:900; padding:2px 10px; border-radius:999px; }
.result-status .mark.ok{ background: rgba(22,163,74,.12); color: var(--ok); }
.result-status .mark.ng{ background: rgba(220,38,38,.12); color: var(--ng); }
.result-status .correct{ color: var(--q-muted); font-weight:700 }

@media (max-width: 640px){
  .q-text { font-size: 16px; }
}