:root {
  --bg0: #06101d;
  --bg1: #091425;
  --text: rgba(235, 242, 255, 0.92);
  --muted: rgba(235, 242, 255, 0.64);
  --panel: rgba(255, 255, 255, 0.11);
  --panel-2: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.18);
  --border-soft: rgba(255, 255, 255, 0.12);
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
  --blur: 18px;

  --neutral: hsla(220, 10%, 60%, 0.18);

  --radius: 18px;
  --radius-sm: 12px;
  --gap: 14px;

  --drawer-peek: 68px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC",
    "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background:
    radial-gradient(900px 540px at 15% 10%, rgba(0, 246, 255, 0.18), transparent 55%),
    radial-gradient(900px 540px at 85% 16%, rgba(255, 0, 199, 0.14), transparent 52%),
    radial-gradient(900px 540px at 55% 82%, rgba(0, 255, 170, 0.10), transparent 60%),
    linear-gradient(180deg, var(--bg1), var(--bg0));
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px) 0 0 / 60px 60px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px) 0 0 / 60px 60px;
  opacity: 0.12;
  mask-image: radial-gradient(circle at 50% 35%, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));
}

.app {
  max-width: 1640px;
  margin: 0 auto;
  padding: 22px;
}

.glass {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.07));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur)) saturate(120%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(120%);
}

.muted {
  color: var(--muted);
}

.topbar {
  display: flex;
  gap: var(--gap);
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  position: sticky;
  top: 14px;
  z-index: 10;
}

.brand-title {
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 18px;
}

.brand-subtitle {
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
}

.control {
  display: grid;
  gap: 6px;
  min-width: 200px;
}

.control-search {
  flex: 1.4 1 320px;
  min-width: 280px;
}

.control-select {
  flex: 0.9 1 190px;
}

.control-label {
  font-size: 12px;
  color: var(--muted);
}

.input,
.select {
  height: 38px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
  padding: 0 12px;
  box-shadow: none;
}

.input::placeholder {
  color: rgba(235, 242, 255, 0.48);
}

.input:focus,
.select:focus {
  border-color: rgba(0, 246, 255, 0.50);
  box-shadow: 0 0 0 3px rgba(0, 246, 255, 0.18);
}

.search {
  display: grid;
  grid-template-columns: 1fr 40px;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  height: 38px;
  width: 40px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.icon-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.22);
}

.icon-btn:active {
  transform: translateY(0);
}

.icon-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 0, 199, 0.22);
}

.compare-buttons {
  display: flex;
  gap: 8px;
}

.chip-btn {
  height: 36px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 0 12px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.chip-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.28);
}

.chip-btn:active {
  transform: translateY(0);
}

.chip-btn.is-on {
  border-color: rgba(0, 246, 255, 0.64);
  box-shadow: 0 0 0 2px rgba(0, 246, 255, 0.20) inset;
  background: rgba(0, 246, 255, 0.12);
}

.chip-btn.danger {
  border-color: rgba(255, 126, 126, 0.38);
}

.compare-count {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  font-size: 11px;
  white-space: nowrap;
}

.main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: var(--gap);
  align-items: start;
  margin-top: var(--gap);
}

.main-primary {
  min-width: 0;
  display: grid;
  gap: var(--gap);
  align-content: start;
}

.table {
  padding: 14px;
  overflow: hidden;
}

.table-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 4px 2px 12px;
}

.table-scroll-hint {
  display: none;
  margin-top: 4px;
  font-size: 11px;
}

.table-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 4px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.hint {
  font-size: 12px;
  color: var(--muted);
}

.legend {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 18px;
}

.legend-bar {
  width: 180px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

.legend-bar > div {
  height: 100%;
  width: 100%;
}

.legend-label {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.legend-chip {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--dot, var(--neutral));
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06);
}

.grid {
  --label-col: 34px;
  --grid-gap: 7px;
  --cell: clamp(40px, calc((100% - var(--label-col) - (18 * var(--grid-gap))) / 18), 72px);
  display: grid;
  width: 100%;
  grid-template-columns: var(--label-col) repeat(18, minmax(0, var(--cell)));
  grid-template-rows: 28px repeat(10, var(--cell));
  gap: var(--grid-gap);
  align-items: stretch;
  justify-content: start;
  padding: 6px 2px 2px;
}

.group-label,
.period-label {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: rgba(235, 242, 255, 0.56);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

.period-series {
  font-size: 10px;
  letter-spacing: 0.5px;
}

.element {
  --tile-accent: var(--tile, var(--neutral));
  --tile-outline: color-mix(in srgb, var(--tile-accent) 24%, rgba(255, 255, 255, 0.22));
  appearance: none;
  border: 1px solid var(--tile-outline);
  border-radius: var(--radius-sm);
  padding: clamp(3px, calc(var(--cell) * 0.068), 6px)
    clamp(4px, calc(var(--cell) * 0.084), 8px)
    clamp(3px, calc(var(--cell) * 0.082), 6px);
  cursor: pointer;
  text-align: center;
  color: rgba(246, 250, 255, 0.98);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--tile-accent) 10%, rgba(255, 255, 255, 0.12)),
    color-mix(in srgb, var(--tile-accent) 18%, rgba(255, 255, 255, 0.06))
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.10),
    0 8px 18px rgba(4, 10, 20, 0.16);
  transition:
    transform 120ms ease,
    border-color 120ms ease,
    box-shadow 120ms ease,
    background 150ms ease;
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: clamp(0px, calc(var(--cell) * 0.022), 3px);
  align-items: stretch;
  justify-items: stretch;
  isolation: isolate;
  backdrop-filter: blur(14px) saturate(118%);
  -webkit-backdrop-filter: blur(14px) saturate(118%);
}

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

.element:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--tile-accent) 34%, rgba(255, 255, 255, 0.32));
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--tile-accent) 12%, rgba(255, 255, 255, 0.14)),
    color-mix(in srgb, var(--tile-accent) 20%, rgba(255, 255, 255, 0.08))
  );
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 10px 20px rgba(4, 10, 20, 0.20),
    0 0 0 1px color-mix(in srgb, var(--tile-accent) 18%, transparent);
}

.element:active {
  transform: translateY(0) scale(0.992);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.10),
    0 6px 12px rgba(4, 10, 20, 0.18);
}

.element:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--tile-accent) 48%, rgba(157, 232, 255, 0.84));
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--tile-accent) 30%, rgba(157, 232, 255, 0.30)),
    0 0 0 4px rgba(157, 232, 255, 0.12),
    0 10px 18px rgba(4, 10, 20, 0.20);
}

.element.is-selected {
  border-color: rgba(255, 119, 223, 0.58);
  box-shadow:
    0 0 0 1px rgba(255, 119, 223, 0.24),
    0 0 0 3px rgba(255, 119, 223, 0.10),
    0 10px 20px rgba(4, 10, 20, 0.20);
}

.element.is-compared {
  border-color: rgba(120, 234, 255, 0.62);
  box-shadow:
    0 0 0 1px rgba(120, 234, 255, 0.26),
    0 0 0 3px rgba(120, 234, 255, 0.10),
    0 10px 20px rgba(4, 10, 20, 0.20);
}

.element.is-selected.is-compared {
  border-color: rgba(189, 219, 255, 0.72);
  box-shadow:
    0 0 0 1px rgba(255, 119, 223, 0.18),
    0 0 0 3px rgba(120, 234, 255, 0.12),
    0 10px 20px rgba(4, 10, 20, 0.20);
}

.element.is-hidden {
  display: none;
}

.element::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.12),
    rgba(255, 255, 255, 0.02) 42%,
    transparent 100%
  );
  opacity: 0.55;
  transition: opacity 120ms ease;
  pointer-events: none;
  z-index: 0;
}

.element::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--tile-accent) 28%, transparent),
    transparent 68%
  );
  opacity: 0.42;
  transition: opacity 120ms ease;
  pointer-events: none;
  z-index: 0;
}

.element:hover::before,
.element:focus-visible::before {
  opacity: 0.7;
}

.element:hover::after {
  opacity: 0.5;
}

.tile-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: clamp(3px, calc(var(--cell) * 0.06), 7px);
  font-size: clamp(7.6px, calc(var(--cell) * 0.15), 11px);
  font-weight: 540;
  color: rgba(231, 239, 250, 0.62);
  line-height: 1;
  letter-spacing: 0.18px;
  font-variant-numeric: tabular-nums;
  min-height: 1.02em;
  align-self: start;
}

.tile-top > :first-child {
  color: rgba(238, 245, 255, 0.72);
  font-weight: 620;
}

.tile-mass {
  font-size: 0.86em;
  font-weight: 500;
  color: rgba(231, 239, 250, 0.56);
  max-width: 58%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: right;
}

.tile-symbol {
  align-self: center;
  justify-self: center;
  width: 100%;
  display: grid;
  place-items: center;
  font-weight: 760;
  font-size: clamp(11.5px, calc(var(--cell) * 0.31), 22px);
  line-height: 0.84;
  letter-spacing: 0.18px;
  margin: 0;
  color: rgba(255, 255, 255, 0.99);
  text-shadow: none;
}

.tile-name {
  align-self: end;
  margin: 0;
  font-size: clamp(7.8px, calc(var(--cell) * 0.175), 11.8px);
  font-weight: 610;
  line-height: 1.08;
  letter-spacing: 0.12px;
  color: rgba(240, 246, 255, 0.84);
  min-height: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  white-space: normal;
  overflow-wrap: anywhere;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  text-align: center;
}

.details {
  --accent: rgba(255, 255, 255, 0.16);
  padding: 14px;
  position: sticky;
  top: 92px;
  border-color: color-mix(in srgb, var(--accent) 52%, rgba(255, 255, 255, 0.16));
}

.details-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.details-title {
  display: grid;
  grid-template-columns: auto auto;
  gap: 4px 10px;
  align-items: baseline;
}

.details-number {
  font-size: 12px;
  color: var(--muted);
}

.details-symbol {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.6px;
}

.details-name {
  grid-column: 1 / -1;
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.details-body {
  padding-top: 12px;
}

.kv {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0;
}

.kv-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 14px;
  padding: 10px 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.kv-item dt {
  font-size: 11px;
  color: var(--muted);
}

.kv-item dd {
  margin: 4px 0 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.88);
  overflow-wrap: anywhere;
}

.kv-item.span-2 {
  grid-column: 1 / -1;
}

.metrics {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.metric {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 14px;
  padding: 10px 10px 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.metric-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.86);
}

.metric-value {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.metric-bar {
  margin-top: 10px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.metric-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(0, 246, 255, 0.65), rgba(255, 0, 199, 0.65));
  transition: width 220ms ease;
}

.details-tip {
  margin-top: 12px;
  font-size: 12px;
}

.orbitals,
.cloud {
  margin-top: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 14px;
  padding: 0;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.section-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 12px 10px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.section-toggle:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px rgba(0, 246, 255, 0.34);
}

.section-toggle-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
}

.section-toggle-icon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
}

.section-body {
  padding: 0 10px 10px;
}

.orbitals-title,
.cloud-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: rgba(255, 255, 255, 0.88);
}

.orbitals-subtitle,
.cloud-subtitle {
  font-size: 11px;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.orbital-core {
  margin-top: 0;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 26%, rgba(255, 255, 255, 0.14));
  background: color-mix(in srgb, var(--accent) 10%, rgba(255, 255, 255, 0.05));
  font-size: 11px;
}

.orbital-diagram {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.orbital-system {
  display: grid;
  gap: 12px;
}

.orbital-system-visual {
  position: relative;
  width: min(100%, 320px);
  aspect-ratio: 1;
  margin: 0 auto;
  border-radius: 50%;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 10%, rgba(255, 255, 255, 0.10)), transparent 38%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.06), transparent 62%);
}

.orbital-system-glow {
  position: absolute;
  inset: 16%;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 24%, rgba(255, 255, 255, 0.10)), transparent 68%);
  filter: blur(14px);
  pointer-events: none;
}

.orbital-shell-layer {
  position: absolute;
  inset: 0;
  animation: orbital-spin var(--duration, 18s) linear infinite;
  animation-direction: var(--spin-direction, normal);
}

.orbital-shell-ringline {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--diameter);
  height: var(--diameter);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, rgba(255, 255, 255, 0.18));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.03) inset,
    0 0 24px color-mix(in srgb, var(--accent) 14%, transparent);
}

.orbital-shell-electrons {
  position: absolute;
  inset: 0;
}

.orbital-shell-electron {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--electron-size, 7px);
  height: var(--electron-size, 7px);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 78%, rgba(255, 255, 255, 0.94));
  box-shadow:
    0 0 14px color-mix(in srgb, var(--accent) 38%, transparent),
    0 0 2px rgba(255, 255, 255, 0.75),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.orbital-nucleus {
  position: absolute;
  left: 50%;
  top: 50%;
  width: clamp(72px, 28%, 94px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent) 36%, rgba(255, 255, 255, 0.18));
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.30), transparent 30%),
    radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 56%, rgba(255, 255, 255, 0.20)), rgba(5, 8, 20, 0.94) 72%);
  box-shadow:
    0 0 36px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
  z-index: 1;
}

.orbital-nucleus-symbol {
  font-size: clamp(20px, 7vw, 28px);
  font-weight: 800;
  line-height: 1;
}

.orbital-nucleus-number {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.76);
}

.orbital-shell-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.orbital-shell-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, rgba(255, 255, 255, 0.12));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 12%, rgba(255, 255, 255, 0.06)), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.03);
}

.orbital-shell-chip-badge {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 24px;
  padding: 0 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, rgba(255, 255, 255, 0.08));
  color: rgba(255, 255, 255, 0.94);
  font-size: 11px;
  font-weight: 700;
}

.orbital-shell-chip-text {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.84);
}

@keyframes orbital-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .orbital-shell-layer {
    animation: none;
  }
}

.orbital-row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 10px;
  align-items: stretch;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, rgba(255, 255, 255, 0.12));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, rgba(255, 255, 255, 0.05)), rgba(255, 255, 255, 0.04)),
    rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.orbital-badge {
  display: grid;
  gap: 8px;
  align-content: center;
  justify-items: center;
  min-width: 0;
  padding: 6px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, rgba(255, 255, 255, 0.10));
  background: color-mix(in srgb, var(--accent) 10%, rgba(255, 255, 255, 0.04));
}

.orbital-shell-badge {
  display: inline-grid;
  grid-auto-flow: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
}

.orbital-shell-ring {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent) 44%, rgba(255, 255, 255, 0.36));
  background: color-mix(in srgb, var(--accent) 14%, rgba(255, 255, 255, 0.12));
  box-shadow: 0 0 8px color-mix(in srgb, var(--accent) 18%, transparent);
}

.orbital-glyph {
  position: relative;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 16%, rgba(255, 255, 255, 0.12)), transparent 68%);
}

.orbital-glyph-lobe {
  position: absolute;
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 60%, rgba(255, 255, 255, 0.82));
  box-shadow:
    0 0 12px color-mix(in srgb, var(--accent) 34%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.32);
}

.orbital-glyph-lobe.is-center {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.orbital-glyph-lobe.is-left {
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
}

.orbital-glyph-lobe.is-right {
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
}

.orbital-glyph-lobe.is-top {
  left: 50%;
  top: 2px;
  transform: translateX(-50%);
}

.orbital-glyph-lobe.is-bottom {
  left: 50%;
  bottom: 2px;
  transform: translateX(-50%);
}

.orbital-glyph-lobe.is-top-left {
  left: 4px;
  top: 4px;
}

.orbital-glyph-lobe.is-top-right {
  right: 4px;
  top: 4px;
}

.orbital-glyph-lobe.is-bottom-left {
  left: 4px;
  bottom: 4px;
}

.orbital-glyph-lobe.is-bottom-right {
  right: 4px;
  bottom: 4px;
}

.orbital-track {
  display: grid;
  gap: 8px;
  align-content: center;
}

.orbital-boxes {
  --box-count: 1;
  display: grid;
  grid-template-columns: repeat(var(--box-count), minmax(0, 1fr));
  gap: 6px;
}

.orbital-box {
  position: relative;
  min-width: 0;
  height: 34px;
  border-radius: 11px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04)),
    rgba(4, 8, 20, 0.34);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.orbital-box.is-filled {
  border-color: color-mix(in srgb, var(--accent) 36%, rgba(255, 255, 255, 0.22));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 16%, rgba(255, 255, 255, 0.12)), rgba(255, 255, 255, 0.05)),
    color-mix(in srgb, var(--accent) 10%, rgba(4, 8, 20, 0.34));
}

.orbital-box.is-dual::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 6px;
  bottom: 6px;
  width: 1px;
  transform: translateX(-50%);
  background: color-mix(in srgb, var(--accent) 22%, rgba(255, 255, 255, 0.14));
}

.orbital-box.is-dual.axis-horizontal::before {
  left: 6px;
  right: 6px;
  top: 50%;
  bottom: auto;
  width: auto;
  height: 1px;
  transform: translateY(-50%);
}

.orbital-electron {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 76%, rgba(255, 255, 255, 0.92));
  box-shadow:
    0 0 12px color-mix(in srgb, var(--accent) 44%, transparent),
    0 0 2px rgba(255, 255, 255, 0.60),
    inset 0 1px 0 rgba(255, 255, 255, 0.44);
}

.orbital-electron.is-center {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.orbital-electron.is-top {
  left: 50%;
  top: 6px;
  transform: translateX(-50%);
}

.orbital-electron.is-bottom {
  left: 50%;
  bottom: 6px;
  transform: translateX(-50%);
}

.orbital-electron.is-left {
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
}

.orbital-electron.is-right {
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
}

.orbital-meter {
  height: 6px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}

.orbital-meter-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 70%, rgba(255, 255, 255, 0.80)), rgba(255, 255, 255, 0.92));
}

.orbital-empty,
.orbitals-foot,
.cloud-foot {
  margin-top: 10px;
  font-size: 11px;
  line-height: 1.35;
}

.cloud-canvas {
  margin-top: 10px;
  width: 100%;
  height: min(240px, 34vh);
  border-radius: 12px;
  border: 1px solid rgba(164, 198, 255, 0.26);
  background:
    radial-gradient(280px 200px at 16% 18%, rgba(255, 255, 255, 0.10), transparent 66%),
    radial-gradient(220px 220px at 84% 80%, rgba(123, 164, 239, 0.14), transparent 58%),
    linear-gradient(180deg, rgba(9, 13, 29, 0.94), rgba(3, 7, 18, 0.98));
  display: block;
}

.compare {
  padding: 14px;
}

.compare-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  padding-bottom: 10px;
}

.compare-header-copy {
  min-width: 0;
  flex: 1 1 auto;
  display: grid;
  gap: 6px;
}

.compare-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.compare-title {
  font-size: 14px;
  font-weight: 700;
}

.compare-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.compare-collapse-btn {
  font-size: 16px;
  line-height: 1;
}

.compare-body {
  padding-top: 12px;
}

.compare.is-collapsed .compare-body {
  display: none;
}

.compare-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.compare-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  padding: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.compare-card.is-empty {
  border-style: dashed;
  color: var(--muted);
  display: grid;
  place-items: center;
  min-height: 150px;
}

.compare-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.compare-card-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.compare-symbol {
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
}

.compare-name {
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.compare-remove {
  border: 1px solid rgba(255, 126, 126, 0.36);
  background: rgba(255, 126, 126, 0.10);
  color: rgba(255, 220, 220, 0.92);
  border-radius: 10px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 11px;
}

.compare-remove:hover {
  background: rgba(255, 126, 126, 0.18);
}

.compare-fields {
  display: grid;
  gap: 6px;
}

.compare-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
}

.compare-key {
  color: var(--muted);
}

.compare-val {
  color: rgba(255, 255, 255, 0.9);
  text-align: right;
}

.noscript {
  margin-top: 12px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 12px;
}

.footer {
  margin-top: 14px;
  font-size: 12px;
  text-align: center;
  padding: 10px 0 0;
}

@media (prefers-reduced-motion: reduce) {
  .element,
  .element::before,
  .element::after {
    transition-duration: 0.01ms;
    transition-delay: 0ms;
  }
  .element:hover,
  .element:active {
    transform: none;
  }
}

@media (max-width: 1050px) {
  .control {
    min-width: 180px;
  }
  .control-search {
    min-width: 240px;
  }
  .main {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
  }
}

@media (max-width: 1200px) {
  .main {
    display: flex;
    flex-direction: column;
  }
  .main-primary {
    display: contents;
  }
  .table {
    order: 1;
  }
  .details {
    order: 2;
    position: static;
    top: auto;
  }
  .compare {
    order: 3;
  }
}

@media (max-width: 900px), (max-device-width: 900px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
    position: static;
  }
  .controls {
    justify-content: space-between;
  }
  .control {
    min-width: 0;
    flex: 1;
  }
  .control-search,
  .control-select {
    flex: 1 1 100%;
    min-width: 0;
  }
  .main {
    grid-template-columns: 1fr;
  }
  .compare-grid {
    grid-template-columns: 1fr;
  }
  .table {
    padding: 12px;
  }
  .table-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  .legend {
    flex-wrap: wrap;
  }
  .table-scroll-hint {
    display: block;
  }
  .table-scroll {
    overflow-x: auto;
    overflow-y: hidden;
  }
  .grid {
    --label-col: 30px;
    --grid-gap: 6px;
    --cell: clamp(44px, 11vw, 56px);
    width: max-content;
    min-width: calc(var(--label-col) + (18 * var(--cell)) + (18 * var(--grid-gap)));
  }
  .element {
    padding: clamp(2px, calc(var(--cell) * 0.08), 4px)
      clamp(2px, calc(var(--cell) * 0.09), 4px)
      clamp(2px, calc(var(--cell) * 0.09), 4px);
    gap: clamp(0px, calc(var(--cell) * 0.015), 1px);
  }
  .tile-top {
    font-size: clamp(8px, calc(var(--cell) * 0.16), 10px);
    line-height: 1;
  }
  .tile-symbol {
    font-size: clamp(12px, calc(var(--cell) * 0.305), 16.8px);
    line-height: 0.82;
  }
  .tile-name {
    font-size: clamp(8px, calc(var(--cell) * 0.19), 9.8px);
    line-height: 1.08;
    min-height: 0;
  }
  .tile-mass {
    display: none;
  }
  .orbitals-subtitle,
  .cloud-subtitle {
    white-space: normal;
  }
  .orbital-row {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 8px;
    padding: 8px;
  }
  .orbital-glyph {
    width: 30px;
    height: 30px;
  }
  .orbital-glyph-lobe,
  .orbital-electron {
    width: 9px;
    height: 9px;
  }
  .orbital-box {
    height: 30px;
  }
  .orbital-system {
    gap: 10px;
  }
  .orbital-system-visual {
    width: min(100%, 280px);
  }
  .orbital-shell-chip {
    min-height: 30px;
    padding: 0 9px;
    gap: 7px;
  }
  .orbital-shell-chip-badge {
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
  }
  .orbital-shell-chip-text {
    font-size: 11px;
  }
  .orbital-nucleus {
    width: clamp(64px, 24%, 84px);
  }
  .compare-header {
    flex-direction: column;
    align-items: stretch;
  }
  .compare-actions {
    justify-content: flex-start;
  }
  .compare-collapse-btn {
    margin-left: auto;
  }
  .details {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: 14px;
    top: auto;
    max-height: calc(100vh - 28px);
    display: flex;
    flex-direction: column;
    transform: translateY(calc(100% - var(--drawer-peek)));
    transition: transform 200ms ease;
    z-index: 20;
    padding-bottom: 16px;
  }
  body.drawer-open .details {
    transform: translateY(0);
  }
  body.drawer-hidden .details {
    transform: translateY(calc(100% + 20px));
    pointer-events: none;
  }
  body.drawer-hidden .details-header {
    cursor: default;
  }
  .details-header {
    cursor: pointer;
  }
  .details-body {
    overflow: auto;
    padding-right: 2px;
  }
  #closeDetails {
    cursor: pointer;
  }
  .footer {
    padding-bottom: calc(var(--drawer-peek) + 18px);
  }
}