/* Lesson 2-2: Grammatik — card UI (mint badge, soft surface) */

.lesson2-2-page {
  min-height: 100vh;
  background: linear-gradient(180deg, var(--color-bg) 0%, #eef3f0 100%);
}

.l22-main {
  padding: clamp(1rem, 3vw, 1.5rem) 0 clamp(3rem, 8vw, 5rem);
}

.l22-container {
  max-width: min(100%, 1040px);
}

.l22-back {
  padding-top: 0.5rem;
  margin-bottom: 1.25rem;
}

.l22-back a {
  font-weight: 600;
  font-size: 0.9375rem;
}

.l22-hero {
  margin-bottom: 2.5rem;
}

.l22-eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #2d5d4d;
}

.l22-title {
  margin: 0 0 0.65rem;
  font-size: clamp(1.65rem, 4vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: #1a2a24;
}

.l22-lead {
  margin: 0 0 1.5rem;
  max-width: 38rem;
  font-size: 1.02rem;
  line-height: 1.65;
  color: #5c6e66;
}

.l22-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
}

.l22-btn-grammatik {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.65rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  background: linear-gradient(180deg, #2d6b56 0%, #245a48 100%);
  border: 1px solid rgba(26, 42, 36, 0.2);
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(45, 93, 77, 0.28);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.l22-btn-grammatik:hover {
  filter: brightness(1.05);
  box-shadow: 0 6px 20px rgba(45, 93, 77, 0.35);
}

.l22-btn-grammatik:active {
  transform: translateY(1px);
}

.l22-btn-grammatik:focus-visible {
  outline: 2px solid #2d5d4d;
  outline-offset: 3px;
}

.l22-btn-grammatik[aria-expanded="false"] + .l22-level-nav {
  opacity: 0.65;
}

.l22-level-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  transition: opacity var(--transition);
}

.l22-level-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.65rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: #2d5d4d;
  background: #e0ece6;
  border: 1px solid rgba(45, 93, 77, 0.18);
  border-radius: 999px;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.l22-level-pill:hover {
  background: #d0e4da;
  color: #1a2a24;
}

.l22-level-pill.is-active {
  background: #2d5d4d;
  color: #f8f9f8;
  border-color: #245a48;
}

.l22-sections.l22-collapsed {
  display: none;
}

/* Nur ein Niveau anzeigen (Pill-Klick) */
.l22-sections[data-show-only] > .l22-section {
  display: none;
}

.l22-sections[data-show-only="a1"] > .l22-section[data-level="a1"],
.l22-sections[data-show-only="a2"] > .l22-section[data-level="a2"],
.l22-sections[data-show-only="b1"] > .l22-section[data-level="b1"],
.l22-sections[data-show-only="b2"] > .l22-section[data-level="b2"],
.l22-sections[data-show-only="c1"] > .l22-section[data-level="c1"] {
  display: block;
}

.l22-section {
  scroll-margin-top: calc(var(--header-h, 72px) + 1rem);
  margin-bottom: 2.75rem;
}

.l22-section:last-child {
  margin-bottom: 0;
}

.l22-section-heading {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.25rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: #1a2a24;
}

.l22-section-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.28rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #2d5d4d;
  background: #e0ece6;
  border: 1px solid rgba(45, 93, 77, 0.15);
  border-radius: 10px;
}

.l22-card-grid {
  display: grid;
  gap: 1.1rem;
}

@media (min-width: 560px) {
  .l22-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 820px) {
  .l22-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.l22-card {
  padding: clamp(1.35rem, 3.5vw, 2.35rem);
  background: #f8f9f8;
  border: 1px solid rgba(26, 42, 36, 0.12);
  border-radius: clamp(20px, 3vw, 28px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.l22-card:hover {
  border-color: rgba(45, 93, 77, 0.22);
  box-shadow: 0 8px 28px rgba(26, 42, 36, 0.06);
}

.l22-card-btn {
  width: 100%;
  font: inherit;
  text-align: start;
  color: inherit;
  cursor: pointer;
}

.l22-card-btn:focus-visible {
  outline: 2px solid #2d5d4d;
  outline-offset: 3px;
}

.l22-card-btn.is-selected {
  border-color: rgba(45, 93, 77, 0.42);
  box-shadow: 0 0 0 2px rgba(45, 93, 77, 0.12), 0 8px 28px rgba(26, 42, 36, 0.08);
}

.l22-card-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  padding: 0.28rem 0.55rem;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #2d5d4d;
  background: #e0ece6;
  border-radius: 10px;
  border: 1px solid rgba(45, 93, 77, 0.12);
}

.l22-card-title {
  margin: 0 0 0.55rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: #1a2a24;
}

.l22-card-desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.58;
  color: #5c6e66;
}

/* A2: compact buttons (title only) */
.l22-card-grid--a2 {
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fill, minmax(9.25rem, 1fr));
}

@media (min-width: 640px) {
  .l22-card-grid--a2 {
    grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
    gap: 0.85rem;
  }
}

@media (min-width: 900px) {
  .l22-card-grid--a2 {
    grid-template-columns: repeat(5, 1fr);
  }
}

.l22-a2-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  min-height: 5.5rem;
  padding: 0.75rem 0.8rem 0.85rem;
  border-radius: 16px;
  background: #f8f9f8;
}

.l22-a2-btn .l22-card-num {
  min-width: 1.85rem;
  padding: 0.2rem 0.45rem;
  margin-bottom: 0;
  font-size: 0.6875rem;
  border-radius: 8px;
}

.l22-a2-btn .l22-card-title {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.35;
  letter-spacing: -0.015em;
}

@media (min-width: 480px) {
  .l22-a2-btn .l22-card-title {
    font-size: 0.84375rem;
  }
}

/* A1: 15 compact lesson tiles */
.l22-section-meta {
  margin: -0.65rem 0 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #5c6e66;
}

.l22-lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9.25rem, 1fr));
  gap: 0.7rem;
}

@media (min-width: 640px) {
  .l22-lesson-grid {
    grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
    gap: 0.85rem;
  }
}

@media (min-width: 900px) {
  .l22-section--a1 .l22-lesson-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.l22-lesson-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  min-height: 5.5rem;
  margin: 0;
  padding: 0.75rem 0.8rem 0.85rem;
  width: 100%;
  font: inherit;
  text-align: start;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  background: #f8f9f8;
  border: 1px solid rgba(26, 42, 36, 0.12);
  border-radius: 16px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.75) inset;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.l22-lesson-tile:focus-visible {
  outline: 2px solid #2d5d4d;
  outline-offset: 2px;
}

.l22-lesson-tile.is-selected {
  border-color: rgba(45, 93, 77, 0.42);
  box-shadow: 0 0 0 2px rgba(45, 93, 77, 0.12), 0 6px 20px rgba(26, 42, 36, 0.08);
}

.l22-lesson-tile:hover {
  border-color: rgba(45, 93, 77, 0.24);
  box-shadow: 0 6px 20px rgba(26, 42, 36, 0.07);
}

.l22-lesson-tile-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.85rem;
  padding: 0.2rem 0.45rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #2d5d4d;
  background: #e0ece6;
  border-radius: 8px;
  border: 1px solid rgba(45, 93, 77, 0.12);
}

.l22-lesson-tile-title {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: #1a2a24;
}

@media (min-width: 480px) {
  .l22-lesson-tile-title {
    font-size: 0.84375rem;
  }
}

.l22-section.is-detail-open .l22-section-meta,
.l22-section.is-detail-open .l22-lesson-grid,
.l22-section.is-detail-open .l22-card-grid {
  display: none;
}

.l22-section.is-detail-open .l22-a1-detail,
.l22-section.is-detail-open .l22-level-detail {
  margin-top: 0;
}

/* A1: Detail-Panel unter dem Raster */
.l22-a1-detail {
  margin-top: 1.35rem;
  padding: clamp(1.1rem, 3vw, 1.65rem);
  background: #f0f4f2;
  border: 1px solid rgba(26, 42, 36, 0.14);
  border-radius: clamp(18px, 2.5vw, 24px);
  scroll-margin-top: calc(var(--header-h, 72px) + 0.75rem);
}

.l22-level-detail {
  margin-top: 1.35rem;
  padding: clamp(1.1rem, 3vw, 1.65rem);
  background: #f0f4f2;
  border: 1px solid rgba(26, 42, 36, 0.14);
  border-radius: clamp(18px, 2.5vw, 24px);
  scroll-margin-top: calc(var(--header-h, 72px) + 0.75rem);
}

.l22-level-detail[hidden] {
  display: none !important;
}

.l22-level-detail-inner {
  position: relative;
  max-width: 100%;
}

.l22-level-detail-head {
  position: relative;
  padding-right: 2.5rem;
  margin-bottom: 0.85rem;
}

.l22-level-detail-label {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #2d5d4d;
}

.l22-level-detail-title {
  margin: 0;
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: #1a2a24;
}

.l22-level-detail-close {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  font-size: 1.35rem;
  line-height: 1;
  color: #5c6e66;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(26, 42, 36, 0.12);
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.l22-level-detail-close:hover {
  background: #fff;
  color: #1a2a24;
}

.l22-level-detail-close:focus-visible {
  outline: 2px solid #2d5d4d;
  outline-offset: 2px;
}

.l22-level-detail-rule {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #3d524a;
}

.l22-level-detail-sub {
  margin: 0 0 0.55rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #2d5d4d;
}

.l22-level-detail-list {
  margin: 0;
  padding-left: 1.15rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: #1a2a24;
}

.l22-level-detail-list li {
  margin-bottom: 0.45rem;
}

.l22-level-detail-list li:last-child {
  margin-bottom: 0;
}

.l22-level-detail-rich {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(26, 42, 36, 0.12);
}

.l22-level-detail-rich[hidden] {
  display: none !important;
}

.l22-a1-detail[hidden] {
  display: none !important;
}

.l22-a1-detail-inner {
  position: relative;
  max-width: 100%;
}

.l22-a1-detail-head {
  position: relative;
  padding-right: 2.5rem;
  margin-bottom: 0.85rem;
}

.l22-a1-detail-label {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #2d5d4d;
}

.l22-a1-detail-title {
  margin: 0;
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: #1a2a24;
}

.l22-a1-detail-close {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  font-size: 1.35rem;
  line-height: 1;
  color: #5c6e66;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(26, 42, 36, 0.12);
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.l22-a1-detail-close:hover {
  background: #fff;
  color: #1a2a24;
}

.l22-a1-detail-close:focus-visible {
  outline: 2px solid #2d5d4d;
  outline-offset: 2px;
}

.l22-a1-detail-rule {
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #3d524a;
}

.l22-a1-detail-sub {
  margin: 0 0 0.55rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #2d5d4d;
}

.l22-a1-detail-list {
  margin: 0;
  padding-left: 1.15rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: #1a2a24;
}

.l22-a1-detail-list li {
  margin-bottom: 0.45rem;
}

.l22-a1-detail-list li:last-child {
  margin-bottom: 0;
}

.l22-a1-detail-rich {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(26, 42, 36, 0.12);
}

.l22-a1-detail-rich[hidden] {
  display: none !important;
}

.l22-rich-block + .l22-rich-block {
  margin-top: 1rem;
}

.l22-rich-title {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: #1a2a24;
}

.l22-rich-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #2d5d4d;
}

.l22-rich-text {
  margin: 0.2rem 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: #3d524a;
}

.l22-rich-list {
  margin: 0.55rem 0 0;
  padding-left: 1.05rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: #1a2a24;
}

.l22-rich-list li {
  margin-bottom: 0.4rem;
}

.l22-rich-table-wrap {
  margin-top: 0.55rem;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.l22-rich-table {
  width: 100%;
  min-width: 0;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid rgba(26, 42, 36, 0.14);
  border-radius: 12px;
  overflow: hidden;
}

.l22-rich-table th,
.l22-rich-table td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid rgba(26, 42, 36, 0.1);
  text-align: start;
  font-size: 0.875rem;
  line-height: 1.45;
}

.l22-rich-table tr:last-child td {
  border-bottom: 0;
}

.l22-rich-table th {
  font-weight: 700;
  color: #1a2a24;
  background: #edf3f0;
}

/* Mobile: fit tables in viewport; old min-width:420px forced horizontal drag */
@media (max-width: 640px) {
  .l22-rich-table {
    table-layout: fixed;
  }

  .l22-rich-table th,
  .l22-rich-table td {
    padding: 0.4rem 0.35rem;
    font-size: 0.8125rem;
    line-height: 1.4;
    vertical-align: top;
    word-break: break-word;
    overflow-wrap: break-word;
  }
}

@media (max-width: 380px) {
  .l22-rich-table th,
  .l22-rich-table td {
    padding: 0.35rem 0.28rem;
    font-size: 0.75rem;
  }
}