/* Practice V2 is a skill-first browser over the shared A1-A2 curriculum. */
body[data-route="practice"] {
  color: var(--academy-text);
  background: var(--academy-page);
  font-family: var(--academy-font-sans);
}

body[data-route="practice"] #page-practice {
  width: 100%;
  max-width: none;
  min-height: calc(100vh - 70px);
  padding: 0 0 64px;
  background: var(--academy-page);
}

.practice-v2,
.practice-v2-message {
  width: min(var(--academy-content-standard), calc(100% - (2 * var(--academy-gutter))));
  margin: 0 auto;
}

.practice-v2 { padding-top: 16px; }

.practice-v2 :is(h1, h2, h3),
.practice-v2-message h1 {
  color: var(--academy-text);
  font-family: inherit;
  letter-spacing: -0.025em;
}

.practice-v2 :is(a, button):focus-visible,
.practice-v2-message :is(a, button):focus-visible {
  outline: 3px solid rgba(104, 101, 216, 0.3);
  outline-offset: 2px;
}

.practice-v2-kicker,
.practice-v2-card-meta,
.practice-v2-level-code,
.practice-v2-unit-number {
  margin: 0;
  color: var(--academy-primary);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.practice-v2-hero {
  position: relative;
  min-height: 205px;
  display: grid;
  grid-template-columns: minmax(0, 68%) minmax(220px, 32%);
  overflow: hidden;
  background: linear-gradient(110deg, #fff 0%, #fff 63%, #f3f2fb 100%);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius-hero);
  box-shadow: var(--academy-shadow-elevated);
}

.practice-v2-hero-copy { z-index: 2; align-self: center; padding: 30px 34px; }
.practice-v2-hero h1 { margin: 7px 0 10px; font-size: clamp(2rem, 3.7vw, 3rem); line-height: 1.03; }

.practice-v2-hero-copy > p:not(.practice-v2-kicker, .practice-v2-context) {
  max-width: 680px;
  margin: 0 0 10px;
  color: var(--academy-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
}

.practice-v2-context { margin: 0; color: var(--academy-primary-hover); font-size: 0.82rem; font-weight: 750; }

.practice-v2-hero > img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  opacity: 0.18;
  filter: saturate(0.7);
  transform: rotate(-4deg) scale(0.82);
  pointer-events: none;
}

.practice-v2-section { margin-top: var(--academy-space-5); }
.practice-v2-section-heading { margin-bottom: 12px; }
.practice-v2-section-heading h2 { margin: 4px 0; font-size: clamp(1.35rem, 2vw, 1.7rem); }

.practice-v2-section-heading > p,
.practice-v2-section-heading-inline > p {
  margin: 0;
  color: var(--academy-secondary);
  font-size: 0.86rem;
  line-height: 1.45;
}

.practice-v2-section-heading-inline { display: flex; align-items: end; justify-content: space-between; gap: 20px; }

.practice-v2-skill-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--academy-space-3); }

.practice-v2-skill-card,
.practice-v2-level-card,
.practice-v2-unit-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: var(--academy-text);
  text-decoration: none;
  background: var(--academy-surface);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius-card);
  box-shadow: var(--academy-shadow-subtle);
  transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.practice-v2-skill-card:hover,
.practice-v2-level-card:hover,
.practice-v2-unit-card:hover,
.practice-v2-topic-row:hover {
  border-color: #cfcef0;
  box-shadow: 0 10px 26px rgba(87, 83, 199, 0.09);
  transform: translateY(-2px);
}

.practice-v2-skill-card { min-height: 192px; padding: 18px; }

.practice-v2-skill-icon,
.practice-v2-empty-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--academy-primary);
  background: var(--academy-primary-soft);
  border-radius: 11px;
}

.practice-v2-skill-icon svg,
.practice-v2-empty-icon svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.practice-v2-skill-card > div { margin-top: 15px; }

.practice-v2-skill-card h3,
.practice-v2-level-card h3,
.practice-v2-unit-card h3 { margin: 5px 0 7px; font-size: 1.15rem; line-height: 1.2; }

.practice-v2-skill-card div > p:last-child,
.practice-v2-level-card > p:not(.practice-v2-level-code, .practice-v2-counts),
.practice-v2-unit-card > p:not(.practice-v2-unit-number) {
  margin: 0;
  color: var(--academy-secondary);
  font-size: 0.82rem;
  line-height: 1.48;
}

.practice-v2-card-action,
.practice-v2-topic-action {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  color: var(--academy-primary-hover);
  font-size: 0.8rem;
  font-weight: 780;
}

.practice-v2-skill-card .practice-v2-card-action {
  width: 100%;
  justify-content: space-between;
  border-top: 1px solid var(--academy-border);
}

.practice-v2-header {
  min-height: 138px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 25px 28px;
  background: linear-gradient(115deg, #fff 0%, #fff 72%, #f5f4fd 100%);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius-card);
  box-shadow: var(--academy-shadow-subtle);
}

.practice-v2-header h1 { margin: 6px 0 7px; font-size: clamp(1.8rem, 3vw, 2.45rem); line-height: 1.08; }

.practice-v2-header > div > p:last-child {
  max-width: 720px;
  margin: 0;
  color: var(--academy-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.practice-v2-level-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--academy-space-4); }
.practice-v2-level-card { min-height: 218px; padding: 22px; }
.practice-v2-level-card h3 { font-size: 1.4rem; }
.practice-v2-counts { display: flex; flex-wrap: wrap; gap: 7px; margin: 14px 0 0; }

.practice-v2-counts span {
  padding: 5px 9px;
  color: var(--academy-secondary);
  background: var(--academy-page);
  border: 1px solid var(--academy-border);
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 750;
}

.practice-v2-level-switcher {
  flex: 0 0 auto;
  display: inline-flex;
  gap: 3px;
  padding: 4px;
  background: #f3f2fb;
  border: 1px solid var(--academy-border);
  border-radius: 11px;
}

.practice-v2-level-switch {
  min-width: 52px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--academy-secondary);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 800;
}

.practice-v2-level-switch:hover,
.practice-v2-level-switch.is-current { color: var(--academy-primary-hover); background: var(--academy-surface); }

.practice-v2-unit-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--academy-space-3); }
.practice-v2-unit-card { min-height: 168px; padding: 18px; }
.practice-v2-topic-list { display: grid; gap: 9px; }

.practice-v2-topic-row {
  min-height: 76px;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  color: var(--academy-text);
  text-decoration: none;
  background: var(--academy-surface);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius-card);
  transition: border-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.practice-v2-topic-index {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: var(--academy-primary);
  background: var(--academy-primary-soft);
  border-radius: 9px;
  font-size: 0.72rem;
  font-weight: 800;
}

.practice-v2-topic-copy { min-width: 0; display: grid; gap: 3px; }
.practice-v2-topic-copy strong { font-size: 0.93rem; }
.practice-v2-topic-copy span { color: var(--academy-secondary); font-size: 0.78rem; font-weight: 650; }
.practice-v2-topic-action { margin: 0; padding-inline: 8px; }

.practice-v2-empty {
  min-height: 238px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 34px;
  text-align: center;
  background: var(--academy-surface);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius-card);
  box-shadow: var(--academy-shadow-subtle);
}

.practice-v2-empty h3 { margin: 16px 0 6px; font-size: 1.25rem; }
.practice-v2-empty p { margin: 0; color: var(--academy-secondary); font-size: 0.88rem; }

.practice-v2-empty a,
.practice-v2-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 17px;
  padding: 0 14px;
  color: var(--academy-primary-hover);
  background: #f5f4fd;
  border: 1px solid #deddf3;
  border-radius: 9px;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 780;
  text-decoration: none;
  cursor: pointer;
}

.practice-v2-message {
  margin-top: 16px;
  padding: 30px;
  background: var(--academy-surface);
  border: 1px solid var(--academy-border);
  border-radius: var(--academy-radius-card);
  box-shadow: var(--academy-shadow-subtle);
}

.practice-v2-message h1 { margin: 7px 0; font-size: clamp(1.6rem, 3vw, 2.25rem); }
.practice-v2-message > p:last-of-type { margin: 0; color: var(--academy-secondary); }
.practice-v2-breadcrumbs { margin: 0 0 12px; }

.practice-v2-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.practice-v2-breadcrumbs li { display: flex; align-items: center; color: var(--academy-secondary); font-size: 0.82rem; font-weight: 700; }
.practice-v2-breadcrumbs li:not(:last-child)::after { margin-inline: 3px; color: var(--academy-muted); content: "›"; }

.practice-v2-breadcrumbs :is(a, span) {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding-inline: 7px;
  color: inherit;
  border-radius: 8px;
}

.practice-v2-breadcrumbs a:hover { color: var(--academy-primary-hover); background: var(--academy-primary-soft); }

@media (max-width: 1120px) {
  .practice-v2-skill-grid,
  .practice-v2-unit-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .practice-v2,
  .practice-v2-message { width: min(100% - 30px, 1200px); }
  .practice-v2-hero { min-height: 190px; grid-template-columns: minmax(0, 1fr) 150px; }
  .practice-v2-hero-copy { padding: 24px; }
  .practice-v2-skill-grid,
  .practice-v2-unit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .practice-v2-header { align-items: flex-start; flex-direction: column; }
  .practice-v2-section-heading-inline { align-items: flex-start; flex-direction: column; gap: 5px; }
}

@media (max-width: 520px) {
  body[data-route="practice"] #page-practice { padding-bottom: 40px; }
  .practice-v2,
  .practice-v2-message { width: calc(100% - 22px); }
  .practice-v2-hero { min-height: 0; display: block; }
  .practice-v2-hero-copy { padding: 24px 20px; }

  .practice-v2-hero > img {
    position: absolute;
    right: -30px;
    bottom: -35px;
    width: 170px;
    height: 170px;
    opacity: 0.1;
  }

  .practice-v2-skill-grid,
  .practice-v2-level-grid,
  .practice-v2-unit-grid { grid-template-columns: minmax(0, 1fr); }

  .practice-v2-skill-card,
  .practice-v2-level-card,
  .practice-v2-unit-card { min-height: 0; }

  .practice-v2-skill-card { display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 13px; padding: 16px; }
  .practice-v2-skill-card > div { margin: 0; }
  .practice-v2-skill-card .practice-v2-card-action { grid-column: 2; }
  .practice-v2-header { min-height: 0; gap: 17px; padding: 21px 19px; }
  .practice-v2-level-switcher { width: 100%; }
  .practice-v2-level-switch { flex: 1; }
  .practice-v2-topic-row { grid-template-columns: 38px minmax(0, 1fr); gap: 10px; padding: 12px; }
  .practice-v2-topic-action { grid-column: 2; justify-self: start; }
  .practice-v2-empty,
  .practice-v2-message { padding: 25px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .practice-v2 :is(.practice-v2-skill-card, .practice-v2-level-card, .practice-v2-unit-card, .practice-v2-topic-row) { transition: none; }
  .practice-v2 :is(.practice-v2-skill-card, .practice-v2-level-card, .practice-v2-unit-card, .practice-v2-topic-row):hover { transform: none; }
}