/* TOEIC Buổi Tối — màn hình luyện tập theo Part (js/views/practice.js). [v-practice]
   Mọi class mang tiền tố prac-. Chỉ dùng token và component của css/app.css; không có màu cứng, không có khối theme riêng.
   Mục lục: 1 trang tổng · 2 chọn bộ luyện · 3 làm bài · 4 kết quả */

/* ───────────────────────── 1. Trang tổng (#practice, #listening, #reading) ───────────────────────── */
.prac-sec { scroll-margin-top: calc(var(--topbar-h) + env(safe-area-inset-top, 0px) + var(--s3)); }
.prac-sec-sub { color: var(--muted); font-size: var(--fs-sm); max-width: 68ch; }
.prac-grid { display: grid; gap: var(--s3); grid-template-columns: minmax(0, 1fr); }
.prac-grid > * { min-width: 0; }

.prac-suggest-slot { min-width: 0; }
.prac-suggest-slot:empty { display: none; }
.prac-wait { min-height: var(--tap); font-size: var(--fs-sm); }
.prac-suggest { grid-template-columns: minmax(0, 1fr); align-items: center; gap: var(--s4); }
.prac-suggest-main { display: grid; gap: var(--s1); min-width: 0; }
.prac-suggest-title { font-size: var(--fs-xl); }
.prac-suggest-why { color: var(--ink); max-width: 56ch; }
.prac-suggest .btn { width: 100%; }

.prac-card { gap: var(--s3); padding: var(--s4); align-content: start; }
.prac-card.is-locked { background: none; border-style: dashed; border-color: var(--line-strong); }
.prac-card-head { display: flex; align-items: center; gap: var(--s3); min-width: 0; }
/* số Part nằm trong một ô tròn như ô tô đáp án trên phiếu trả lời */
.prac-badge {
  display: grid; place-items: center; flex: none; width: 40px; height: 40px; border-radius: 50%;
  border: 1.5px solid var(--pencil); background: var(--surface); color: var(--ink);
  font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; line-height: 1; font-variant-numeric: lining-nums;
}
.prac-badge .icon { width: 20px; height: 20px; }
.prac-card.is-locked .prac-badge { border-color: var(--line-strong); color: var(--muted); background: none; }
.prac-card-titles { display: grid; gap: 1px; min-width: 0; }
.prac-card-title { font-size: var(--fs-lg); font-weight: 700; }
.prac-card-name { font-size: var(--fs-sm); font-weight: 500; color: var(--muted); }
.prac-card-what { max-width: 60ch; }
.prac-card.is-locked .prac-card-what { color: var(--muted); }
.prac-card-bottom { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: var(--s3); margin-top: auto; }
.prac-card-meta { display: flex; flex-wrap: wrap; gap: 6px; min-height: 26px; flex: 1 1 150px; min-width: 0; }
.prac-chip-wait { color: var(--muted); }
.prac-card-go { flex: none; margin-left: auto; }
.prac-note-body { display: grid; gap: var(--s2); justify-items: start; }

@media (min-width: 640px) {
  .prac-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s4); }
  .prac-card { padding: var(--s5); }
  .prac-suggest { grid-template-columns: minmax(0, 1fr) auto; }
  .prac-suggest .btn { width: auto; }
}
@media (min-width: 900px) {
  .prac-sec { scroll-margin-top: calc(env(safe-area-inset-top, 0px) + var(--s5)); }
}

/* ───────────────────────── 2. Chọn bộ luyện (#practice-pN) ───────────────────────── */
.prac-loading { display: grid; gap: var(--s3); justify-items: center; }
.prac-loading .loading { min-height: 120px; }
.prac-loading .bar { width: min(100%, 320px); }

.prac-setup { display: grid; gap: var(--s5); grid-template-columns: minmax(0, 1fr); align-items: start; }
.prac-setup > * { min-width: 0; }
.prac-form { gap: var(--s5); }
.prac-field { gap: var(--s2); }
.prac-field .hint { max-width: 60ch; }
/* bốn lựa chọn phải nằm gọn trên một hàng ở màn hình 360px */
.prac-seg .seg-opt { flex: 1 1 auto; min-width: 0; padding-inline: var(--s3); }
.prac-switch-text { font-weight: 600; }
/* nút bắt đầu luôn nằm trong tầm tay: dính đáy màn hình (trên thanh tab ở mobile) trong lúc thẻ còn trên màn hình */
.prac-form-pick { padding-bottom: 0; }
.prac-go {
  position: sticky; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom, 0px)); z-index: 5;
  display: grid; gap: var(--s2); margin-inline: calc(-1 * var(--s5)); padding: var(--s3) var(--s5) var(--s4);
  background: var(--surface); border-top: 1px solid var(--line); border-radius: 0 0 var(--r-lg) var(--r-lg);
}
.prac-fit { color: var(--muted); font-size: var(--fs-sm); }
.prac-fit strong { color: var(--ink); }
.prac-fit-link { display: flex; align-items: center; gap: 4px; min-height: 40px; color: var(--brand); font-weight: 600; text-decoration: none; }
.prac-fit-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.prac-fit.is-none { color: var(--warn-ink); font-weight: 500; }
.prac-fit.is-none strong { color: inherit; }

.prac-empty { padding-block: var(--s4); }
.prac-empty .empty-text { max-width: 46ch; }
.prac-empty-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--s2); }

.prac-tips-body { display: grid; gap: var(--s3); justify-items: start; }
.prac-tips { display: grid; gap: var(--s2); }
.prac-tips li { position: relative; padding-left: 16px; }
.prac-tips li::before { content: ""; position: absolute; left: 2px; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.prac-tips-link {
  display: inline-flex; align-items: center; gap: 4px; min-height: var(--tap);
  color: var(--brand); font-weight: 600; text-decoration: none;
}
.prac-tips-link:hover { text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 900px) {
  .prac-setup { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: var(--s5); }
  .prac-seg .seg-opt { padding-inline: var(--s3); }
  .prac-go { bottom: env(safe-area-inset-bottom, 0px); margin-inline: calc(-1 * var(--s6)); padding: var(--s4) var(--s6) var(--s5); }
}

/* ───────────────────────── 3. Làm bài ───────────────────────── */
/* đang làm bài: đầu trang thu gọn để nhường chỗ cho câu hỏi */
.prac-run-head { gap: 0; }
.prac-run-head .page-title { font-size: var(--fs-lg); }
.prac-run-head + .qz { margin-top: calc(-1 * var(--s3)); }
/* Part 6–7 (và lúc xem lại): quiz runner nới rộng hơn cột nội dung → đầu trang đi theo cho thẳng hàng */
@media (min-width: 900px) {
  .view:has(> .qz-wide) > .prac-run-head {
    --prac-avail: calc(100vw - var(--side-w) - 2 * var(--gutter) - 20px);
    width: min(1180px, var(--prac-avail));
    margin-inline: calc((100% - min(1180px, var(--prac-avail))) / 2);
  }
  .app.is-focus .view:has(> .qz-wide) > .prac-run-head { --prac-avail: calc(100vw - 2 * var(--gutter) - 20px); }
}
/* đồng hồ từng câu của "Luyện tốc độ" — dùng lại hình dáng .qz-timer của quiz runner */
.prac-clock { min-width: 7.6em; justify-content: center; }
.prac-clock.is-ok { border-color: var(--ok); background: var(--ok-soft); color: var(--ok-ink); }
.prac-clock-row { display: flex; justify-content: flex-end; }

/* ───────────────────────── 4. Kết quả ───────────────────────── */
.prac-result { display: grid; gap: var(--s5); min-width: 0; grid-template-columns: minmax(0, 1fr); }
.prac-result > * { min-width: 0; }
.prac-score { gap: var(--s4); }
.prac-score-head { display: flex; align-items: center; gap: var(--s4); flex-wrap: wrap; }
.prac-score-main { display: grid; gap: var(--s2); min-width: 0; flex: 1 1 200px; justify-items: start; }
.prac-score-title { font-size: var(--fs-xl); }
.prac-score-title .num { font-size: 1.2em; }
.prac-score-text { color: var(--muted); max-width: 52ch; }
.prac-score-text strong { color: var(--ink); font-weight: 600; }
.prac-score .chip { white-space: normal; }
.prac-stats { display: grid; gap: var(--s4); grid-template-columns: repeat(2, minmax(0, 1fr)); padding-top: var(--s4); border-top: 1px solid var(--line); }
.prac-stats .stat-value { font-size: var(--fs-xl); }

.prac-actions { display: grid; gap: var(--s3); }
.prac-actions-row { display: grid; gap: var(--s2); grid-template-columns: minmax(0, 1fr); }
.prac-actions-row .btn { white-space: normal; }
.prac-focus-note { color: var(--muted); font-size: var(--fs-sm); }
.prac-focus-note strong { color: var(--ink); font-weight: 600; }

.prac-tags { display: grid; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); overflow: hidden; }
.prac-tag-row { display: grid; gap: 6px; padding: var(--s3) var(--s4); border-top: 1px solid var(--line); min-width: 0; }
.prac-tag-row:first-child { border-top: 0; }
.prac-tag-head { display: flex; align-items: center; justify-content: space-between; gap: var(--s2); flex-wrap: wrap; }
.prac-tag-name { font-weight: 600; }
.prac-tag-link {
  display: inline-flex; align-items: center; gap: 4px; justify-self: start; min-height: 40px;
  color: var(--brand); font-size: var(--fs-sm); font-weight: 600; text-decoration: none;
}
.prac-tag-link:hover { text-decoration: underline; text-underline-offset: 3px; }

.prac-wrong-item { cursor: pointer; }
.prac-wrong-num {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%;
  border: 1.5px solid var(--bad); background: var(--bad-soft); color: var(--bad-ink);
  font-family: var(--font-display); font-weight: 700; font-size: 0.85rem; line-height: 1; font-variant-numeric: tabular-nums lining-nums;
}
.prac-wrong-q {
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2; overflow: hidden;
  font-weight: 500; overflow-wrap: anywhere;
}
.prac-wrong-q.en { font-weight: 400; }

@media (min-width: 640px) {
  .prac-stats { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
  .prac-actions-row { display: flex; flex-wrap: wrap; align-items: center; }
}