@import url('./home-tokens.css?v=20260719-type-scale-1');
@import url('./base/lesson-action-buttons.css?v=20260719-type-scale-1');
@import url('./practice/shell.css?v=20260719-type-scale-1');
@import url('./practice/catalog-filters.css?v=20260719-type-scale-1');
@import url('./practice/task-list.css?v=20260719-type-scale-1');
@import url('./practice/dark-theme.css?v=20260719-type-scale-1');
@import url('./practice/overview-cards.css?v=20260719-type-scale-1');
@import url('./practice/detail.css?v=20260719-type-scale-1');
@import url('./practice/editor.css?v=20260719-type-scale-1');
@import url('./practice/responsive.css?v=20260719-type-scale-1');

.tasks-page {
  background: #f8faff;
}

.practice-page--index {
  --practice-bg: #f8faff;
  --practice-surface: #ffffff;
  --practice-surface-soft: #f8faff;
  --practice-text: #111a2e;
  --practice-muted: #65738f;
  --practice-line: #dce4f1;
  --practice-line-strong: #c8d6ee;
  --practice-primary: var(--site-accent);
  --practice-primary-strong: var(--site-accent-hover);
  --practice-primary-soft: var(--site-accent-soft);
  --practice-purple: #7b48ee;
  --practice-green: #0aa475;
  --practice-orange: #ee8b16;
  --practice-pink: #db3769;
  --practice-shadow: 0 16px 40px rgba(42, 61, 101, .08);
  width: 100%;
  min-height: calc(100vh - 56px);
  margin: 0;
  padding: 0;
  background:
    radial-gradient(circle at 8% 10%, color-mix(in srgb, var(--site-accent) 8%, transparent), transparent 23rem),
    radial-gradient(circle at 92% 14%, color-mix(in srgb, var(--site-accent-hover) 7%, transparent), transparent 24rem),
    var(--practice-bg);
  color: var(--practice-text);
  font-family: var(--site-font-body, var(--cl-font-body, "Segoe UI", sans-serif));
}

.practice-page--index .practice-catalog {
  min-height: calc(100vh - 56px);
  padding: 0 32px 64px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.practice-catalog__inner {
  width: min(100%, 1272px);
  margin: 0 auto;
}

.practice-progress-card {
  display: grid;
  grid-template-columns: 112px minmax(300px, 1fr) auto;
  gap: 28px;
  align-items: center;
  min-height: 142px;
  overflow: hidden;
  margin: 20px 0 22px;
  padding: 20px 26px;
  border: 1px solid var(--practice-line-strong);
  border-radius: 16px;
  background:
    radial-gradient(circle at 100% 50%, rgba(84, 101, 244, .075), transparent 36%),
    #fff;
  box-shadow: 0 12px 34px rgba(57, 76, 127, .06);
}

.practice-progress-ring {
  --practice-progress: 0deg;
  position: relative;
  width: 94px;
  height: 94px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: conic-gradient(var(--practice-primary) var(--practice-progress), #e4e9f2 0);
}

.practice-progress-ring::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: inherit;
  background: #fff;
}

.practice-progress-ring span {
  position: relative;
  z-index: 1;
  color: var(--practice-text);
  font-size: var(--font-size-500);
  font-weight: 700;
}

.practice-progress-card__copy {
  min-width: 0;
  display: grid;
  gap: 5px;
}

.practice-progress-card__copy > span {
  color: var(--practice-muted);
  font-size: var(--font-size-100);
  font-weight: 600;
}

.practice-progress-card__copy > strong {
  color: var(--practice-text);
  font-size: var(--font-size-500);
  font-weight: 700;
  letter-spacing: -.015em;
}

.practice-progress-card__copy > small {
  color: var(--practice-muted);
  font-weight: 500;
}

.practice-progress-card__copy > small {
  font-size: var(--font-size-100);
}

.practice-progress-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(138px, 1fr));
  align-self: stretch;
}

.practice-progress-stat {
  display: grid;
  grid-template-columns: 46px auto;
  grid-template-rows: 1fr 1fr;
  column-gap: 14px;
  align-items: center;
  min-width: 0;
  padding: 0 24px;
  border-left: 1px solid var(--practice-line);
}

.practice-progress-stat__icon {
  grid-row: 1 / 3;
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: #edf2ff;
  color: var(--practice-primary);
  font-size: var(--font-size-500);
}

.practice-progress-stat__icon.is-streak {
  background: #fff1df;
  color: #ef8114;
}

.practice-progress-stat strong {
  align-self: end;
  color: var(--practice-text);
  font-size: var(--font-size-500);
  font-weight: 700;
  line-height: 1;
}

.practice-progress-stat small {
  align-self: start;
  color: var(--practice-muted);
  font-size: var(--font-size-100);
  font-weight: 500;
}

.practice-topic-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0 0 20px;
  overflow: hidden;
  border: 1px solid var(--practice-line-strong);
  border-radius: 12px;
  background: rgba(255,255,255,.88);
  box-shadow: 0 8px 24px rgba(42, 61, 101, .035);
}

.practice-page--index .practice-topic-filter {
  width: 100%;
  min-width: 0;
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 20px;
  border: 0;
  border-right: 1px solid var(--practice-line);
  border-radius: 0;
  background: transparent;
  color: var(--practice-text);
  text-align: left;
  box-shadow: none;
  transition: background .16s ease, color .16s ease, box-shadow .16s ease;
}

.practice-page--index .practice-topic-filter:last-child {
  border-right: 0;
}

.practice-page--index .practice-topic-filter:hover {
  background: #f7f9fd;
}

.practice-page--index .practice-topic-filter.is-active {
  z-index: 1;
  background: var(--practice-primary-soft);
  color: var(--practice-primary-strong);
  box-shadow: inset 0 0 0 1.5px var(--practice-primary);
}

.practice-page--index .practice-topic-filter:focus-visible {
  outline: 3px solid var(--site-accent-focus);
  outline-offset: 2px;
}

.practice-page--index .practice-topic-filter__icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 10px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--site-accent-soft) 72%, white), var(--site-accent-soft));
  color: var(--practice-primary);
  font-size: var(--font-size-500);
}

.practice-page--index .practice-topic-filter__icon--all {
  background: linear-gradient(145deg, color-mix(in srgb, var(--site-accent-soft) 72%, white), var(--site-accent-soft));
}

.practice-page--index .practice-topic-filter:nth-child(3) .practice-topic-filter__icon {
  background: linear-gradient(145deg, #f0ebff, #e6ddff);
}

.practice-page--index .practice-topic-filter:nth-child(4) .practice-topic-filter__icon {
  background: linear-gradient(145deg, #e8faf4, #d9f5eb);
}

.practice-page--index .practice-topic-filter__icon img {
  width: 100%;
  height: 100%;
  padding: 5px;
  object-fit: contain;
}

.practice-topic-filter__copy {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
}

.practice-page--index .practice-topic-filter strong {
  overflow: hidden;
  color: inherit;
  font-size: var(--font-size-200);
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.practice-page--index .practice-topic-filter small {
  margin: 0;
  color: var(--practice-muted);
  font-size: var(--font-size-100);
  font-weight: 700;
}

.practice-page--index .practice-topic-filter small::before {
  content: "·";
  margin-right: 9px;
}

.practice-page--index .practice-catalog__toolbar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 66px;
  margin: 0;
  padding: 12px 16px;
  border: 1px solid var(--practice-line-strong);
  border-radius: 11px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 12px 30px rgba(42, 61, 101, .055);
}

.practice-page--index .practice-search {
  flex: 1 1 auto;
  min-width: 200px;
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 0 6px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--practice-muted);
}

.practice-page--index .practice-search i {
  font-size: var(--font-size-400);
}

.practice-page--index .practice-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--practice-text);
  font-size: var(--font-size-200);
}

.practice-page--index .practice-search input::placeholder {
  color: #8d99b2;
}

.practice-status-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-right: 15px;
  border-right: 1px solid var(--practice-line);
}

.practice-status-tabs button {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--practice-muted);
  font: inherit;
  font-size: var(--font-size-100);
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}

.practice-status-tabs button:hover {
  background: #f4f7fd;
  color: var(--practice-text);
}

.practice-status-tabs button.is-active {
  border-color: var(--site-accent-border);
  background: var(--practice-primary-soft);
  color: var(--practice-primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--site-accent) 8%, transparent);
}

.practice-page--index .practice-difficulty-dropdown {
  position: relative;
  flex: 0 0 auto;
}

.practice-page--index .practice-filter-select {
  min-width: 146px;
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 8px 0 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--practice-text);
  font: inherit;
  font-size: var(--font-size-100);
  font-weight: 700;
  cursor: pointer;
}

.practice-page--index .practice-filter-select:hover,
.practice-page--index .practice-difficulty-dropdown.is-open .practice-filter-select {
  border-color: var(--practice-line);
  background: var(--practice-surface-soft);
}

.practice-page--index .practice-filter-select i {
  color: var(--practice-muted);
  font-size: var(--font-size-100);
  transition: transform .16s ease;
}

.practice-page--index .practice-difficulty-dropdown.is-open .practice-filter-select i {
  transform: rotate(180deg);
}

.practice-page--index .practice-filter-menu {
  top: calc(100% + 9px);
  right: 0;
  width: 230px;
  padding: 7px;
  border: 1px solid var(--practice-line);
  border-radius: 11px;
  background: #fff;
  box-shadow: 0 20px 45px rgba(26, 38, 69, .16);
}

.practice-page--index .practice-difficulty-dropdown.is-open .practice-filter-menu {
  display: grid;
  gap: 3px;
}

.practice-page--index .practice-filter-menu button {
  grid-template-columns: 16px minmax(0, 1fr) auto;
  min-height: 38px;
  padding: 6px 9px;
  border-radius: 8px;
}

.practice-page--index .practice-filter-menu button:first-child {
  grid-template-columns: minmax(0, 1fr) auto;
}

.practice-difficulty-option__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.practice-difficulty-option__dot.is-easy { color: var(--practice-green); }
.practice-difficulty-option__dot.is-medium { color: var(--practice-orange); }
.practice-difficulty-option__dot.is-hard { color: var(--practice-pink); }

.practice-page--index .practice-results-line {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 0;
  padding: 22px 5px 10px;
  border: 0;
}

.practice-page--index .practice-results-line h2 {
  margin: 0;
  color: var(--practice-text);
  font-size: var(--font-size-500);
  font-weight: 700;
  letter-spacing: -.02em;
}

.practice-sort {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--practice-muted);
}

.practice-sort select {
  min-height: 36px;
  padding: 0 31px 0 10px;
  border: 0;
  outline: 0;
  appearance: none;
  background: transparent;
  color: inherit;
  font: inherit;
  font-size: var(--font-size-100);
  cursor: pointer;
}

.practice-sort i {
  position: absolute;
  right: 9px;
  z-index: -1;
  font-size: var(--font-size-100);
}

.practice-page--index .practice-task-list {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 20px;
  margin: 0;
}

.practice-page--index .practice-task-card {
  --task-accent: var(--practice-primary);
  --task-accent-soft: var(--practice-primary-soft);
  min-width: 0;
  min-height: 178px;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--practice-line);
  border-radius: 14px;
  background:
    radial-gradient(circle at 0 0, color-mix(in srgb, var(--task-accent) 7%, transparent), transparent 35%),
    #fff;
  color: var(--practice-text);
  box-shadow: 0 8px 25px rgba(42, 61, 101, .045);
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}

.practice-page--index .practice-task-card:hover,
.practice-page--index .practice-task-card:focus-within {
  z-index: 2;
  border-color: color-mix(in srgb, var(--task-accent) 42%, var(--practice-line));
  box-shadow: var(--practice-shadow);
  transform: translateY(-2px);
}

.practice-page--index .practice-task-card[hidden] {
  display: none;
}

.practice-page--index .practice-task-row--basics {
  --task-accent: var(--practice-primary);
  --task-accent-soft: var(--practice-primary-soft);
}

.practice-page--index .practice-task-row--algorithms {
  --task-accent: var(--practice-purple);
  --task-accent-soft: #f0eaff;
}

.practice-page--index .practice-task-row--structures {
  --task-accent: var(--practice-green);
  --task-accent-soft: #e4f8f1;
}

.practice-task-card__content {
  min-width: 0;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: start;
  padding: 20px 20px 14px;
}

.practice-page--index .practice-task-row__icon {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  background: var(--task-accent-soft);
  color: var(--task-accent);
  box-shadow: none;
  font-size: var(--font-size-600);
}

.practice-page--index .practice-task-row__body {
  min-width: 0;
  display: grid;
  gap: 7px;
  padding: 0;
}

.practice-task-card__title {
  overflow: hidden;
  color: var(--practice-text);
  font-size: var(--font-size-400);
  font-weight: 700;
  letter-spacing: -.012em;
  line-height: 1.28;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.practice-task-card__title:hover {
  color: var(--site-accent-hover);
}

.practice-task-card__title:focus-visible,
.practice-task-card__action:focus-visible,
.practice-sort select:focus-visible,
.practice-status-tabs button:focus-visible,
.practice-filter-select:focus-visible {
  outline: 3px solid var(--site-accent-focus);
  outline-offset: 2px;
}

.practice-page--index .practice-task-row__desc {
  overflow: hidden;
  color: #5c6a84;
  font-size: var(--font-size-200);
  font-weight: 400;
  line-height: 1.48;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.practice-page--index .practice-task-card__chip {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  min-height: 18px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--task-accent);
  font-size: var(--font-size-100);
  font-weight: 700;
}

.practice-page--index .practice-task-card__difficulty {
  min-width: 68px;
  min-height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 9px;
  border-radius: 999px;
  font-size: var(--font-size-100);
  font-weight: 700;
  white-space: nowrap;
}

.practice-task-card__difficulty.is-easy {
  background: #dcf7eb;
  color: var(--practice-green);
}

.practice-task-card__difficulty.is-medium {
  background: #fff0d9;
  color: var(--practice-orange);
}

.practice-task-card__difficulty.is-hard {
  background: #ffe3ed;
  color: var(--practice-pink);
}

.practice-task-card__footer {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 20px 12px;
  border-top: 0;
  background: transparent;
}

.practice-task-card__meta,
.practice-task-card__completion {
  display: flex;
  align-items: center;
  gap: 16px;
}

.practice-task-card__meta > span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #38445d;
  font-size: var(--font-size-100);
  font-weight: 600;
  white-space: nowrap;
}

.practice-task-card__meta i {
  color: #ffc107;
  font-size: var(--font-size-200);
}

.practice-task-card__meta span:last-child i {
  color: #72809b;
}

.practice-task-card__action {
  min-width: 114px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--site-accent), var(--site-accent-hover));
  color: var(--site-on-accent);
  box-shadow: 0 6px 12px color-mix(in srgb, var(--site-accent) 18%, transparent);
  font-size: var(--font-size-100);
  font-weight: 700;
  text-decoration: none;
  transition: filter .16s ease, transform .16s ease, box-shadow .16s ease;
}

.practice-task-card__action:hover {
  color: var(--site-on-accent);
  filter: brightness(1.04);
  transform: translateY(-1px);
  box-shadow: 0 8px 16px color-mix(in srgb, var(--site-accent) 24%, transparent);
}

.practice-task-card__action.is-completed {
  min-width: 112px;
  background: #dcf7eb;
  color: #078b63;
  box-shadow: none;
}

.practice-task-card__action.is-completed:hover {
  color: #067a57;
  background: #cef2e1;
}

.practice-task-progress {
  display: grid;
  grid-template-columns: auto 76px;
  gap: 8px;
  align-items: center;
}

.practice-task-progress > strong {
  color: #35425c;
  font-size: var(--font-size-100);
}

.practice-task-progress > span {
  width: 76px;
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: #dce3f0;
}

.practice-task-progress > span i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--practice-primary), var(--practice-primary-strong));
}

.practice-task-in-progress {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--practice-primary);
  font-size: var(--font-size-100);
  font-weight: 700;
  white-space: nowrap;
}

.practice-page--index .practice-empty {
  width: min(100%, 620px);
  margin: 42px auto 0;
  padding: 36px;
  border: 1px solid var(--practice-line);
  border-radius: 16px;
  background: #fff;
  text-align: center;
  box-shadow: var(--practice-shadow);
}

.practice-page--index .practice-empty[hidden] {
  display: none;
}

.practice-empty__icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 15px;
  background: #e9f0ff;
  color: var(--practice-primary);
  font-size: var(--font-size-600);
}

.practice-page--index .practice-empty h2 {
  margin: 0;
  color: var(--practice-text);
  font-size: var(--font-size-500);
}

.practice-page--index .practice-empty p {
  margin: 8px 0 0;
  color: var(--practice-muted);
  font-size: var(--font-size-100);
}