*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #FAFAF7;
  --surface: #FFFFFF;
  --surface-2: #F4F3EE;
  --surface-3: #ECE9DE;
  --border: rgba(10, 12, 26, 0.12);
  --border-hi: rgba(10, 12, 26, 0.28);
  --text: #0A0C1A;
  --sub: #4A4F6A;
  --dim: #8A8FA8;
  --red: #E8291F;
  --blue: #1A4FCC;
  --yellow: #E8A800;
  --green: #0E7A47;
  --page-accent: #1A4FCC;
  --shadow-hover: 0 14px 36px rgba(10, 12, 26, 0.14);
  --shadow-panel: 0 22px 48px rgba(10, 12, 26, 0.12);
  --nav-h: 64px;
  --rail-top: 64px;
}

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  position: relative;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(250, 250, 247, 0.98) 18%, rgba(244, 243, 238, 0.86) 62%, rgba(250, 250, 247, 1) 100%);
}

body::before,
body::after {
  content: '';
  position: fixed;
  pointer-events: none;
  z-index: 0;
}

body::before {
  top: -8vh;
  right: -9vw;
  width: min(44vw, 560px);
  height: min(44vw, 560px);
  background: var(--page-accent);
  opacity: 0.08;
  transform: skewX(-20deg);
}

body::after {
  left: -8vw;
  bottom: -14vh;
  width: min(36vw, 460px);
  height: min(38vw, 420px);
  border: 2px solid rgba(10, 12, 26, 0.08);
  transform: rotate(-10deg);
}

.site-nav,
.page-main,
.site-footer {
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 140;
  background: rgba(250, 250, 247, 0.94);
  border-bottom: 2px solid var(--text);
  backdrop-filter: blur(14px);
}

.site-nav-inner {
  min-height: var(--nav-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: stretch;
  gap: 0;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: var(--nav-h);
  padding: 0 20px;
  text-decoration: none;
  border-right: 1.5px solid var(--border);
  background: rgba(255, 255, 255, 0.45);
  white-space: nowrap;
}

.site-brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 12px;
  background: var(--text);
  color: #FFFFFF;
  font-family: 'Oswald', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-brand-text {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  font-family: 'Oswald', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-links {
  display: flex;
  align-items: stretch;
  justify-content: center;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.site-links::-webkit-scrollbar {
  display: none;
}

.site-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 44px;
  padding: 0 18px;
  text-decoration: none;
  border-right: 1.5px solid var(--border);
  color: var(--sub);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.site-link:hover,
.site-link:focus-visible {
  background: var(--surface-2);
  color: var(--text);
  outline: none;
}

.site-link.is-active {
  background: var(--text);
  color: #FFFFFF;
}

.site-link--dropdown {
  padding-right: 14px;
}

.nav-label {
  display: inline-flex;
  align-items: center;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 14px;
  font-size: 12px;
  line-height: 1;
  transform: translateY(-1px);
}

.nav-dropdown-wrap {
  display: inline-flex;
  align-items: stretch;
}

.nav-dropdown {
  position: fixed;
  min-width: 320px;
  max-width: min(420px, calc(100vw - 24px));
  max-height: calc(100vh - var(--nav-h) - 24px);
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.98);
  border: 2px solid var(--text);
  box-shadow: var(--shadow-panel);
  z-index: 200;
  display: none;
}

.nav-dropdown.is-open {
  display: block;
}

.nav-dd-group {
  display: flex;
  flex-direction: column;
}

.nav-dd-group + .nav-dd-group {
  border-top: 1.5px solid var(--border);
}

.nav-dd-chapter {
  font-family: 'Oswald', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--page-accent);
  padding: 14px 16px 8px;
  background: var(--surface-2);
  border-bottom: 1.5px solid var(--border);
}

.nav-dd-item {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 0 16px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s;
}

.nav-dd-item:hover,
.nav-dd-item:focus-visible {
  background: var(--surface-2);
  outline: none;
}

.site-link--finder {
  background: var(--page-accent);
  color: #FFFFFF;
  border-left: 1.5px solid var(--border);
  border-right: none;
  padding-inline: 22px;
}

.site-link--finder:hover,
.site-link--finder:focus-visible {
  background: var(--text);
  color: #FFFFFF;
}

.page-main {
  min-height: calc(100vh - var(--nav-h));
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 18px minmax(0, 1.14fr) minmax(340px, 0.86fr);
  align-items: stretch;
  overflow: hidden;
  border-bottom: 2px solid var(--text);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.46), rgba(244, 243, 238, 0.94));
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  pointer-events: none;
}

.hero::before {
  inset: 0 0 0 18px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.7), rgba(244, 243, 238, 0.92) 55%, rgba(255, 255, 255, 0.5));
}

.hero::after {
  right: -10%;
  bottom: -18%;
  width: min(44vw, 620px);
  height: min(32vw, 360px);
  background: var(--page-accent);
  opacity: 0.12;
  transform: skewX(-28deg);
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero--home {
  min-height: max(620px, calc(100svh - var(--nav-h)));
}

.hero--compact {
  min-height: 460px;
}

.hero-rail {
  background: var(--page-accent);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 76px 52px 58px;
  border-right: 2px solid var(--text);
}

.hero-kicker {
  margin-bottom: 18px;
  color: var(--sub);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero-title {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(3.5rem, 8.2vw, 7.4rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.hero-title-block {
  display: block;
}

.hero-highlight {
  display: inline-block;
  margin-top: 10px;
  padding: 2px 12px 8px;
  background: var(--page-accent);
  color: #FFFFFF;
}

.hero-deck {
  max-width: 640px;
  margin-top: 24px;
  color: var(--sub);
  font-size: 13px;
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  min-width: 44px;
  padding: 0 16px;
  border: 1.5px solid var(--text);
  text-decoration: none;
  color: var(--text);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.hero-action:hover,
.hero-action:focus-visible {
  background: var(--surface);
  outline: none;
}

.hero-action--primary {
  background: var(--text);
  color: #FFFFFF;
}

.hero-action--primary:hover,
.hero-action--primary:focus-visible {
  background: var(--page-accent);
  border-color: var(--page-accent);
  color: #FFFFFF;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-stat {
  min-width: 144px;
  padding: 14px 14px 12px;
  border: 1.5px solid var(--border-hi);
  background: rgba(255, 255, 255, 0.72);
}

.hero-stat-value {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.hero-stat-label {
  display: block;
  margin-top: 6px;
  color: var(--dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
  background: linear-gradient(180deg, #0A0C1A 0%, #131C3C 100%);
  color: #FFFFFF;
}

.finder-panel,
.signal-panel,
.focus-panel,
.info-panel {
  border: 2px solid var(--text);
}

.finder-panel {
  background: var(--surface);
  color: var(--text);
}

.finder-panel-head,
.signal-head,
.focus-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1.5px solid var(--border-hi);
}

.finder-panel-head {
  background: var(--surface-2);
}

.finder-label,
.focus-kicker {
  color: var(--page-accent);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.finder-meta,
.focus-meta {
  color: var(--dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.finder-bar {
  display: grid;
  grid-template-columns: 1fr auto;
}

.finder-input {
  min-height: 60px;
  padding: 0 18px;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}

.finder-input::placeholder {
  color: var(--dim);
}

.finder-submit {
  min-width: 164px;
  min-height: 60px;
  border: none;
  border-left: 2px solid var(--text);
  background: var(--text);
  color: #FFFFFF;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: background 0.15s;
}

.finder-submit:hover,
.finder-submit:focus-visible {
  background: var(--page-accent);
  outline: none;
}

.quick-chips,
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.finder-chips {
  padding: 14px 16px 16px;
  border-top: 1.5px solid var(--border);
}

.chip,
.filter-pill,
.ghost-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 0 14px;
  border: 1.5px solid var(--border-hi);
  background: transparent;
  color: var(--sub);
  text-decoration: none;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.chip:hover,
.filter-pill:hover,
.ghost-chip:hover,
.chip:focus-visible,
.filter-pill:focus-visible,
.ghost-chip:focus-visible {
  background: var(--surface-2);
  color: var(--text);
  outline: none;
}

.chip.is-active,
.filter-pill.is-active,
.ghost-chip.is-active {
  background: var(--text);
  border-color: var(--text);
  color: #FFFFFF;
}

.chip--accent,
.ghost-chip--accent {
  background: var(--page-accent);
  border-color: var(--page-accent);
  color: #FFFFFF;
}

.chip--accent:hover,
.ghost-chip--accent:hover,
.chip--accent:focus-visible,
.ghost-chip--accent:focus-visible {
  background: var(--text);
  border-color: var(--text);
  color: #FFFFFF;
}

.signal-panel {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

.signal-head,
.focus-panel-head {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.signal-head .finder-label,
.signal-head .finder-meta,
.focus-panel-head .focus-meta {
  color: rgba(255, 255, 255, 0.88);
}

.signal-copy,
.focus-summary {
  padding: 14px 16px 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 11px;
  line-height: 1.8;
}

.hero-preview {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.mini-result {
  display: block;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  border-left: 6px solid var(--card-accent, var(--page-accent));
  background: rgba(255, 255, 255, 0.98);
  padding: 14px;
  text-decoration: none;
  transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.18s, border-color 0.18s;
}

.mini-result:hover,
.mini-result:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
  outline: none;
}

.mini-result-meta {
  color: var(--dim);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.mini-result-title {
  margin-top: 8px;
  font-family: 'Oswald', sans-serif;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.05;
  text-transform: uppercase;
}

.mini-result-desc {
  margin-top: 6px;
  color: var(--sub);
  font-size: 11px;
  line-height: 1.7;
}

.mini-result-cta {
  margin-top: 10px;
  color: var(--page-accent);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section {
  padding: 64px 44px 70px;
  border-bottom: 1.5px solid var(--border);
}

.section-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.section-title {
  border-bottom: 3px solid var(--page-accent);
  padding-bottom: 4px;
  font-family: 'Oswald', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 2px;
  background: var(--border);
}

.section-meta {
  color: var(--sub);
  background: rgba(255, 255, 255, 0.78);
  border: 1.5px solid var(--border-hi);
  padding: 6px 12px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-copy {
  max-width: 760px;
  margin-bottom: 24px;
  color: var(--sub);
  font-size: 12px;
  line-height: 1.9;
}

.class-grid,
.sim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 18px;
}

.class-card,
.sim-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.84);
  border: 1.5px solid var(--border-hi);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.2s, border-color 0.2s;
}

.class-card:hover,
.sim-card:hover,
.class-card:focus-visible,
.sim-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  outline: none;
}

.class-card-top,
.sim-card-top {
  min-height: 122px;
  padding: 18px 18px 16px;
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0) 52%);
  background-color: var(--card-accent, var(--page-accent));
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.class-card-meta,
.sim-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.meta-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  background: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.9);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.card-icon {
  font-size: 1.72rem;
  line-height: 1;
  color: rgba(255, 255, 255, 0.76);
}

.class-card-title,
.sim-card-title {
  font-family: 'Oswald', sans-serif;
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.02;
  text-transform: uppercase;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
  padding: 18px 18px 20px;
}

.card-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.card-flag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border: 1px solid var(--border-hi);
  color: var(--sub);
  background: var(--surface-2);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.card-flag--accent {
  background: var(--surface);
  color: var(--page-accent);
  border-color: currentColor;
}

.card-desc {
  color: var(--sub);
  font-size: 11px;
  line-height: 1.8;
  flex: 1;
}

.card-teaching {
  align-self: flex-start;
  padding: 8px 10px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card-cta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1.5px solid var(--border);
  color: var(--page-accent);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.class-stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(72px, 1fr));
  gap: 10px;
}

.class-stat {
  padding: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.class-stat strong {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
}

.class-stat span {
  display: block;
  margin-top: 4px;
  color: var(--dim);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.layout-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
}

.info-panel {
  background: rgba(255, 255, 255, 0.84);
  padding: 18px;
}

.info-panel h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.info-panel p {
  margin-top: 10px;
  color: var(--sub);
  font-size: 11px;
  line-height: 1.8;
}

.control-rail {
  position: sticky;
  top: var(--rail-top);
  z-index: 120;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  padding: 14px 44px;
  background: rgba(250, 250, 247, 0.94);
  border-bottom: 2px solid var(--text);
  backdrop-filter: blur(12px);
}

.control-row {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.control-label {
  flex-shrink: 0;
  color: var(--dim);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

select.filter-select {
  min-height: 44px;
  padding: 0 38px 0 16px;
  border: 1.5px solid var(--border-hi);
  background:
    linear-gradient(45deg, transparent 50%, var(--text) 50%) calc(100% - 18px) 18px / 6px 6px no-repeat,
    linear-gradient(135deg, var(--text) 50%, transparent 50%) calc(100% - 13px) 18px / 6px 6px no-repeat,
    var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  appearance: none;
}

select.filter-select:hover,
select.filter-select:focus-visible {
  background:
    linear-gradient(45deg, transparent 50%, var(--text) 50%) calc(100% - 18px) 18px / 6px 6px no-repeat,
    linear-gradient(135deg, var(--text) 50%, transparent 50%) calc(100% - 13px) 18px / 6px 6px no-repeat,
    var(--surface-2);
  outline: none;
}

.chapter-section {
  padding: 34px 44px 40px;
  border-bottom: 1.5px solid var(--border);
  scroll-margin-top: 176px;
}

.chapter-section:nth-of-type(odd) {
  background: rgba(255, 255, 255, 0.32);
}

.chapter-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  margin-bottom: 14px;
}

.chapter-code {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  background: var(--page-accent);
  color: #FFFFFF;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.chapter-title {
  font-family: 'Oswald', sans-serif;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
}

.chapter-summary {
  color: var(--dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.chapter-intro {
  max-width: 760px;
  margin-bottom: 20px;
  color: var(--sub);
  font-size: 12px;
  line-height: 1.85;
}

.results-meta,
.catalog-meta {
  color: var(--dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.focus-panel {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

.focus-panel-head {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.focus-panel-head .focus-kicker {
  color: rgba(255, 255, 255, 0.92);
}

.focus-grid {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.focus-link {
  display: block;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  border-left: 6px solid var(--card-accent, var(--page-accent));
  background: rgba(255, 255, 255, 0.98);
  padding: 14px;
  text-decoration: none;
  transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.18s;
}

.focus-link:hover,
.focus-link:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
  outline: none;
}

.focus-link-meta {
  color: var(--dim);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.focus-link-title {
  margin-top: 8px;
  font-family: 'Oswald', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.05;
  text-transform: uppercase;
}

.focus-link-desc {
  margin-top: 6px;
  color: var(--sub);
  font-size: 11px;
  line-height: 1.7;
}

.focus-jumps {
  padding: 0 16px 16px;
}

.focus-jumps-label {
  display: block;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.empty-state {
  padding: 54px 20px;
  border: 1.5px dashed var(--border-hi);
  text-align: center;
  background: rgba(255, 255, 255, 0.74);
}

.empty-state h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
}

.empty-state p {
  margin-top: 10px;
  color: var(--sub);
  font-size: 12px;
  line-height: 1.75;
}

.empty-state code {
  font-size: 11px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 44px;
  border-top: 2px solid var(--text);
  background: rgba(255, 255, 255, 0.56);
  color: var(--dim);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.site-footer strong {
  color: var(--text);
  font-family: 'Oswald', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

@media (max-width: 1180px) {
  .hero,
  .hero--compact,
  .hero--home {
    grid-template-columns: 12px 1fr;
    min-height: auto;
  }

  .hero-copy {
    border-right: none;
  }

  .hero-panel {
    border-top: 2px solid var(--text);
  }

  .layout-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  :root {
    --nav-h: 58px;
    --rail-top: 58px;
  }

  body::before {
    top: -10vh;
    right: -24vw;
    width: 70vw;
    height: 54vw;
  }

  .site-nav-inner {
    grid-template-columns: auto 1fr auto;
  }

  .site-brand {
    padding: 0 14px;
  }

  .site-brand-text {
    display: none;
  }

  .site-links {
    justify-content: flex-start;
  }

  .site-link {
    min-height: 58px;
    padding-inline: 16px;
  }

  .section,
  .control-rail,
  .chapter-section,
  .site-footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-copy {
    padding: 42px 24px 34px;
  }

  .hero-panel {
    padding: 22px 20px;
  }

  .section-head {
    flex-wrap: wrap;
  }

  .section-line {
    display: none;
  }

  .class-grid,
  .sim-grid,
  .layout-band {
    grid-template-columns: 1fr 1fr;
  }

  .chapter-head {
    grid-template-columns: auto 1fr;
  }

  .chapter-summary {
    grid-column: 1 / -1;
  }

  .control-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .control-rail {
    gap: 16px;
  }
}

@media (max-width: 640px) {
  body::after {
    display: none;
  }

  .site-nav-inner {
    grid-template-columns: auto 1fr;
  }

  .site-link--finder {
    display: none;
  }

  .site-brand-mark {
    min-height: 32px;
    padding: 0 10px;
    font-size: 13px;
  }

  .site-link {
    min-height: 52px;
    font-size: 10px;
    padding-inline: 14px;
  }

  .hero-title {
    font-size: clamp(2.9rem, 12vw, 4.4rem);
  }

  .hero-kicker,
  .hero-deck {
    max-width: none;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-action {
    width: 100%;
  }

  .finder-bar {
    grid-template-columns: 1fr;
  }

  .finder-submit {
    min-width: 100%;
    border-left: none;
    border-top: 2px solid var(--text);
  }

  .class-grid,
  .sim-grid,
  .layout-band,
  .class-stat-row {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
    text-align: center;
    padding: 18px 16px;
  }

  .section,
  .control-rail,
  .chapter-section {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-copy {
    padding: 32px 18px 26px;
  }

  .hero-panel {
    padding: 18px 16px;
  }

  .chapter-code {
    min-height: 36px;
    padding-inline: 10px;
  }

  .nav-dropdown {
    min-width: 0;
    width: calc(100vw - 16px);
    max-width: calc(100vw - 16px);
  }
}