@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --bg: oklch(15.5% 0.012 245);
  --bg-2: oklch(13% 0.012 245);
  --surface: oklch(19% 0.014 245);
  --surface-2: oklch(22.5% 0.016 245);
  --surface-3: oklch(26% 0.018 245);
  --border: oklch(30% 0.018 245);
  --border-strong: oklch(38% 0.022 245);
  --text: oklch(94% 0.005 245);
  --text-2: oklch(72% 0.012 245);
  --text-3: oklch(54% 0.014 245);
  --text-4: oklch(40% 0.014 245);
  --cyan: oklch(80% 0.10 215);
  --cyan-soft: oklch(80% 0.10 215 / 0.18);
  --cyan-line: oklch(80% 0.10 215 / 0.45);
  --amber: oklch(82% 0.13 80);
  --amber-soft: oklch(82% 0.13 80 / 0.16);
  --amber-line: oklch(82% 0.13 80 / 0.55);
  --c-frig: oklch(78% 0.06 245);
  --c-cruise: oklch(78% 0.07 200);
  --c-bship: oklch(80% 0.08 165);
  --c-capital: oklch(82% 0.13 80);
  --radius: 6px;
  --radius-lg: 10px;
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, oklch(22% 0.04 215 / 0.35), transparent 70%),
    radial-gradient(900px 500px at 0% 110%, oklch(20% 0.03 280 / 0.25), transparent 70%),
    var(--bg);
  background-attachment: fixed;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover { color: var(--text); }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-align: left;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(15% 0.012 245 / 0.85);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
}

.brand-name {
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand-tag {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding-left: 12px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}

.crumb {
  font-size: 13.5px;
  letter-spacing: 0.01em;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 400;
}

.crumb-link {
  color: var(--text-2);
  padding: 4px 8px;
  border-radius: 4px;
  transition: background 0.15s var(--ease), color 0.15s var(--ease);
}

.crumb-link:hover {
  background: var(--surface-2);
  color: var(--text);
}

.crumb-current {
  color: var(--cyan);
  padding: 4px 8px;
  background: var(--cyan-soft);
  border-radius: 4px;
  border: 1px solid var(--cyan-line);
}

.crumb-sep {
  color: var(--text-4);
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
}

.main {
  flex: 1;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 56px 28px 80px;
}

.view-fade {
  animation: fadeIn 220ms var(--ease) both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.view-head {
  margin-bottom: 40px;
  max-width: 640px;
}

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 14px;
}

.view-title {
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin: 0 0 12px;
}

.view-sub {
  font-size: 16px;
  color: var(--text-2);
  margin: 0;
  text-wrap: pretty;
}

.class-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.class-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.class-card:hover {
  background: var(--surface-2);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.class-card-id {
  font-family: "IBM Plex Mono", monospace;
  font-size: 38px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
}

.class-card-desc {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.4;
}

.class-card-desc span { color: var(--cyan); }

.class-card-arrow {
  font-size: 18px;
  color: var(--text-4);
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.class-card:hover .class-card-arrow {
  color: var(--cyan);
  transform: translateX(3px);
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.type-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 200px;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.type-card:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.type-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-3);
  margin-bottom: 18px;
}

.type-name {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.type-desc {
  font-size: 13.5px;
  color: var(--text-2);
  flex: 1;
}

.type-count {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.site-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.site-row {
  width: 100%;
  background: var(--surface);
  padding: 22px 26px;
  display: flex;
  align-items: center;
  gap: 24px;
  transition: background 0.15s var(--ease);
}

.site-row:hover { background: var(--surface-2); }

.site-row-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-row-name {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.005em;
}

.site-row-notes {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.4;
  min-height: 20px;
}

.site-row-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.site-row-kind {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 3px;
}

.site-row-stat {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12.5px;
  color: var(--text-2);
  letter-spacing: 0.02em;
  min-width: 50px;
  text-align: right;
}

.site-row-arrow {
  color: var(--text-4);
  font-size: 16px;
  transition: color 0.15s var(--ease), transform 0.15s var(--ease);
}

.site-row:hover .site-row-arrow {
  color: var(--cyan);
  transform: translateX(2px);
}

.detail-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.detail-titleblock { max-width: 720px; }

.detail-title {
  font-size: 34px;
  font-weight: 500;
  letter-spacing: -0.018em;
  margin: 0 0 12px;
  line-height: 1.15;
}

.detail-notes {
  font-size: 15px;
  color: var(--text-2);
  margin: 0;
  text-wrap: pretty;
}

.detail-stats {
  display: flex;
  gap: 28px;
  margin: 0;
}

.detail-stats > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.detail-stats dt {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}

.detail-stats dd {
  font-family: "IBM Plex Mono", monospace;
  font-size: 26px;
  font-weight: 400;
  margin: 0;
  letter-spacing: -0.01em;
}

.stat-trigger { color: var(--amber); }

.detail-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
}

.toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.toggle-track {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--surface-3);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
  flex-shrink: 0;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--text-3);
  border-radius: 50%;
  transition: transform 0.22s var(--ease), background 0.18s var(--ease);
}

.toggle-on .toggle-track {
  background: var(--amber-soft);
  border-color: var(--amber-line);
}

.toggle-on .toggle-thumb {
  transform: translateX(20px);
  background: var(--amber);
  box-shadow: 0 0 12px oklch(82% 0.13 80 / 0.5);
}

.toggle-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.toggle-label {
  font-size: 14.5px;
  font-weight: 500;
}

.toggle-on .toggle-label { color: var(--amber); }

.toggle-hint {
  font-size: 12px;
  color: var(--text-3);
}

.legend {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-3);
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.04em;
}

.legend-glyph,
.ship-glyph { font-size: 11px; }

[data-class="Frigate"] { color: var(--c-frig); }
[data-class="Cruiser"] { color: var(--c-cruise); }
[data-class="Battleship"] { color: var(--c-bship); }
[data-class="Capital"] { color: var(--c-capital); }
[data-class="Tower"] { color: var(--amber); }

.waves {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.wave {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.wave-head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--border);
}

.wave-index {
  font-family: "IBM Plex Mono", monospace;
  font-size: 22px;
  font-weight: 400;
  color: var(--text-3);
  letter-spacing: -0.01em;
  min-width: 40px;
}

.wave-titles {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.wave-name {
  font-size: 18px;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.005em;
}

.wave-meta {
  font-size: 12.5px;
  color: var(--text-3);
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.02em;
}

.wave-progress {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--text-4);
  letter-spacing: 0.06em;
}

.wave-empty {
  font-size: 13px;
  color: var(--text-4);
  font-style: italic;
  margin: 8px 0 0;
}

.wave-hidden {
  font-size: 12px;
  color: var(--text-4);
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.04em;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.ship-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ship-row {
  display: grid;
  grid-template-columns: auto auto 1fr auto auto;
  align-items: center;
  gap: 16px;
  padding: 10px 12px;
  border-radius: 4px;
  transition: background 0.15s var(--ease), opacity 0.18s var(--ease);
}

.ship-row:hover { background: var(--surface-2); }

.ship-count {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.04em;
  min-width: 24px;
}

.ship-glyph {
  width: 18px;
  text-align: center;
}

.ship-name {
  font-size: 14.5px;
}

.ship-class {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ship-trigger-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--amber);
  background: var(--amber-soft);
  border: 1px solid var(--amber-line);
  padding: 3px 8px;
  border-radius: 3px;
  text-transform: uppercase;
}

.trigger-bolt { font-size: 11px; }

.ship-trigger {
  background: oklch(20% 0.025 80 / 0.18);
  position: relative;
}

.ship-trigger::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--amber);
  border-radius: 2px;
}

.footer {
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 28px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-4);
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.04em;
  border-top: 1px solid var(--border);
}

.summary,
.filters,
.table-wrap,
.status,
.flags,
.note {
  max-width: 1180px;
  margin: 0 auto 24px;
}

.table-wrap { overflow-x: auto; }

table {
  border-collapse: collapse;
  min-width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 9px 10px;
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--text-3);
  font-size: 12px;
  text-transform: uppercase;
}

td {
  font-size: 14px;
}

@media (max-width: 880px) {
  .topbar-inner {
    gap: 14px;
    padding: 12px 18px;
  }

  .brand-tag { display: none; }
  .main { padding: 32px 18px 60px; }
  .view-title { font-size: 28px; }
  .detail-title { font-size: 26px; }
  .class-grid { grid-template-columns: 1fr; }
  .type-grid { grid-template-columns: 1fr 1fr; }
  .detail-head {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .detail-stats { gap: 20px; }
  .detail-stats dd { font-size: 22px; }
  .site-row {
    padding: 18px 18px;
    gap: 16px;
  }

  .site-row-meta {
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .site-row-stat { min-width: 0; }
  .ship-row {
    grid-template-columns: auto auto 1fr;
    row-gap: 4px;
  }

  .ship-class,
  .ship-trigger-tag {
    grid-column: 3;
    justify-self: end;
  }

  .ship-trigger-tag { grid-row: 2; }
  .legend { gap: 12px; }
  .footer {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .type-grid { grid-template-columns: 1fr; }
  .detail-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .legend {
    width: 100%;
    justify-content: space-between;
  }

  .site-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-row-meta {
    justify-content: flex-start;
  }
}