.tab-groups {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
  align-items: stretch;
}

.tab-group {
  position: relative;
  display: flex;
  flex: 1 1 240px;
  min-width: 220px;
  z-index: 10;
}

.tab-group--article {
  flex: 0 0 210px;
  min-width: 210px;
  margin-left: 6px;
  padding-left: 0;
}

.tab-group--article::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: color-mix(in srgb, var(--line) 82%, var(--accent-2) 18%);
}

.tab-group--article .tab-group__trigger {
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-glass) 72%, white 28%), color-mix(in srgb, var(--surface-soft) 86%, white 14%));
  border-color: color-mix(in srgb, var(--accent-2) 16%, var(--line));
  box-shadow: 0 12px 22px rgba(20, 38, 34, 0.05);
}

.tab-group--article .tab-group__menu {
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-menu) 76%, white 24%), color-mix(in srgb, var(--surface-soft) 88%, white 12%));
  border-color: color-mix(in srgb, var(--accent-2) 14%, var(--line));
}

.tab-group--article .tab-group__trigger strong {
  color: color-mix(in srgb, var(--text) 88%, var(--accent-2) 12%);
}

.tab-group--article .tab-group__trigger span {
  color: color-mix(in srgb, var(--muted) 82%, var(--accent-2) 18%);
}

body[data-theme="dark"] .tab-group--article .tab-group__trigger {
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-glass) 88%, white 12%), color-mix(in srgb, var(--surface-soft) 90%, white 10%));
  border-color: color-mix(in srgb, var(--accent-2) 26%, var(--line));
}

body[data-theme="dark"] .tab-group--article .tab-group__menu {
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-menu) 92%, white 8%), color-mix(in srgb, var(--surface-soft) 92%, white 8%));
}

.tab-group__trigger {
  appearance: none;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 4px;
  width: 100%;
  min-height: 84px;
  height: 100%;
  padding: 14px 44px 14px 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-glass);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  text-align: left;
  cursor: pointer;
  align-content: start;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.tab-group__trigger strong {
  color: var(--text);
  font-size: 0.98rem;
}

.tab-group__trigger span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.tab-group__trigger::after {
  content: "▾";
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 0.95rem;
  transition: transform 0.18s ease, color 0.18s ease;
}

.tab-group__menu {
  position: absolute;
  top: calc(100% - 2px);
  left: 0;
  right: 0;
  z-index: 4100;
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-menu);
  box-shadow: var(--shadow-strong);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.tab-group__menu--compact {
  left: auto;
  right: 0;
  width: min(290px, calc(100vw - 32px));
  min-width: 0;
}

.tab-subgroups {
  display: grid;
  gap: 10px;
}

.tab-subgroup {
  display: grid;
  gap: 8px;
}

.tab-subgroup__label {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

body.has-hover-ui .tab-group:hover .tab-group__trigger,
.tab-group:focus-within .tab-group__trigger,
.tab-group.is-open .tab-group__trigger {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent-1) 24%, var(--line));
  box-shadow: var(--shadow-medium);
}

body.has-hover-ui .tab-group:hover,
.tab-group:focus-within,
.tab-group.is-open {
  z-index: 4000;
}

body.has-hover-ui .tab-group:hover .tab-group__trigger::after,
.tab-group:focus-within .tab-group__trigger::after,
.tab-group.is-open .tab-group__trigger::after {
  color: var(--accent-1);
  transform: translateY(-50%) rotate(180deg);
}

.tab-group.is-current .tab-group__trigger::after {
  color: var(--accent-1);
}

body.has-hover-ui .tab-group:hover .tab-group__menu,
.tab-group:focus-within .tab-group__menu,
.tab-group.is-open .tab-group__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

body.has-hover-ui .tab-group.is-locked-closed .tab-group__menu,
.tab-group.is-locked-closed:focus-within .tab-group__menu,
.tab-group.is-locked-closed .tab-group__menu {
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  pointer-events: none;
  transition: none;
}

body.has-hover-ui .tab-group.is-locked-closed .tab-group__trigger,
.tab-group.is-locked-closed:focus-within .tab-group__trigger,
.tab-group.is-locked-closed .tab-group__trigger {
  transform: none;
  border-color: var(--line);
  box-shadow: var(--shadow);
}

body.has-hover-ui .tab-group.is-locked-closed .tab-group__trigger::after,
.tab-group.is-locked-closed:focus-within .tab-group__trigger::after,
.tab-group.is-locked-closed .tab-group__trigger::after {
  color: var(--muted);
  transform: translateY(-50%);
}

.tab-group.is-current .tab-group__trigger {
  border-color: color-mix(in srgb, var(--accent-1) 26%, var(--line));
  box-shadow: var(--shadow-soft);
}

.tabs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.tabs--wide {
  grid-template-columns: 1fr;
}

.tab-button {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease;
}

.tab-button:hover {
  background: var(--surface-accent-soft);
  color: var(--text);
}

.tab-group__trigger:focus-visible,
.tab-button:focus-visible {
  outline-offset: 4px;
}

.tab-button.is-active {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: white;
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent-1) 24%, transparent);
}

.tab-placeholder {
  display: grid;
  gap: 4px;
  min-height: 84px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--surface-accent-softer);
  color: var(--text);
}

.tab-placeholder strong {
  font-size: 0.98rem;
}

.tab-placeholder span {
  color: var(--muted);
  line-height: 1.45;
}