.algorithms-hero .hero-copy { max-width: 1200px; }
.algorithms-layout {
  display: grid;
  grid-template-columns: minmax(300px, .7fr) minmax(360px, .85fr) minmax(430px, 1.05fr);
  gap: 16px;
  max-width: 1540px;
  margin: 0 auto;
  padding: 22px 24px 38px;
  align-items: start;
}
.algorithm-browser,
.algorithm-results,
.algorithm-reader {
  position: sticky;
  top: 16px;
}
.algorithm-filters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
  margin-top: 14px;
}
.algorithm-filters label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}
.algorithm-search { margin-bottom: 14px; }
.algorithm-search button,
#clearAlgorithms {
  border: 0;
  color: var(--accent-dark);
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.source-panel,
.algorithm-results,
.algorithm-reader {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.source-panel h2 {
  margin: 0 0 12px;
  font-size: 18px;
}
.source-cards,
.algorithm-cards {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.source-card,
.algorithm-card {
  width: 100%;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: var(--surface);
  text-align: left;
  text-decoration: none;
}
.source-card:hover,
.algorithm-card:hover,
.algorithm-card.active {
  border-color: rgba(0,111,201,.42);
  background: var(--accent-soft);
}
.source-card strong,
.algorithm-card strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.42;
}
.source-card span,
.algorithm-card span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}
.source-card em,
.algorithm-card em {
  display: inline-block;
  margin-bottom: 7px;
  padding: 4px 7px;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--soft);
  font-size: 11px;
  font-style: normal;
  font-weight: 800;
}
.algorithm-results {
  max-height: calc(100vh - 32px);
  overflow: auto;
}
.algorithm-card-main {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 12px;
  align-items: start;
}
.algorithm-card-copy {
  min-width: 0;
}
.algorithm-code {
  display: grid;
  place-items: center;
  text-align: center;
  min-height: 42px;
  padding: 8px 6px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--accent-dark);
  background: var(--soft);
  font-size: 15px;
  font-weight: 850;
  letter-spacing: .01em;
  white-space: nowrap;
}
.algorithm-card.active .algorithm-code {
  border-color: rgba(0,111,201,.42);
  background: var(--accent-soft);
}
.algorithm-reader {
  min-height: calc(100vh - 170px);
  max-height: calc(100vh - 32px);
  overflow: auto;
}
.algorithm-reader h2 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -.035em;
}
.reader-empty {
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
}
.algorithm-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 18px;
}
.algorithm-pill {
  padding: 6px 8px;
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--soft);
  font-size: 12px;
  font-weight: 750;
}
.algorithm-text-box {
  margin: 16px 0;
  padding: 14px;
  border-radius: 14px;
  background: var(--soft);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.58;
}
.algorithm-copy {
  width: 100%;
  min-height: 130px;
  margin-top: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: var(--surface);
  font: 14px/1.5 "Segoe UI", Arial, sans-serif;
  resize: vertical;
}
.algorithm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}
.action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--accent-dark);
  background: var(--surface);
  font: inherit;
  font-size: 13px;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}
.action.primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}
.algorithm-card-header {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 7px;
}
.algorithm-card-header em {
  margin-bottom: 0;
}
.algorithm-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--warning-bg);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
  font-size: 10px;
  font-style: normal;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.algorithm-pill--change {
  background: var(--warning-bg);
  color: var(--warning-text);
  border: 1px solid var(--warning-border);
}
.algorithm-compare-hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 12px 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--warning-bg);
  border: 1px solid var(--warning-border);
  font-size: 13px;
  color: var(--warning-text);
}
.algorithm-compare-hint a {
  white-space: nowrap;
  font-weight: 750;
  color: var(--warning-text);
  text-decoration: underline;
}
.source-card-date {
  color: var(--warning-text) !important;
  font-weight: 700 !important;
}
mark { padding: 0 2px; border-radius: 3px; color: inherit; background: #ffe69a; }
.mobile-tabs { display: none; }

@media (max-width: 1180px) {
  .mobile-tabs {
    display: flex;
    margin: 0 24px 0;
    border-bottom: 2px solid var(--line);
  }
  .mobile-tab {
    flex: 1;
    padding: 10px 6px;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    background: none;
    font: inherit;
    font-size: 14px;
    font-weight: 650;
    color: var(--muted);
    cursor: pointer;
    transition: color .15s;
  }
  .mobile-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
  }
  #mobileCount {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 999px;
    background: var(--soft);
    font-size: 11px;
    font-weight: 700;
  }
  .mobile-tab.active #mobileCount {
    background: #daeeff;
  }
  .algorithms-layout {
    grid-template-columns: 1fr;
    padding-top: 16px;
  }
  .algorithm-browser,
  .algorithm-results,
  .algorithm-reader { position: static; max-height: none; }
  .algorithms-layout:not([data-active="browser"]) .algorithm-browser { display: none; }
  .algorithms-layout:not([data-active="results"]) .algorithm-results { display: none; }
  .algorithms-layout:not([data-active="reader"]) .algorithm-reader { display: none; }
}
@media (max-width: 520px) {
  .algorithm-card-main {
    grid-template-columns: 1fr;
    gap: 9px;
  }
  .algorithm-code {
    justify-self: start;
    min-height: 0;
    min-width: 78px;
  }
}

.algorithm-codes-section {
  margin: 16px 0;
}
.algorithm-codes-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}
.algorithm-codes-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.code-badge {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent-dark);
  background: var(--surface);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}
.code-badge:hover {
  border-color: var(--accent);
  background: var(--soft);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}