/* Generated from Zperiod source components; declarations are copied unchanged. */
.zp-shared {
  --bg-color: #fdfbf7;
  --element-bg: #f5efe6;
  --element-hover: #ebe0d0;
  --text-primary: #2c2420;
  --text-secondary: #5d544f;
  --text-muted: #9ca3af;
  --text-highlight: #78350f;
  --border-color: rgba(0, 0, 0, 0.06);
  --modal-bg-glass: rgba(255, 255, 255, 0.92);
  --modal-text-main: #1a1a1a;
  --modal-text-sub: #8e8e93;
  --p-grad: linear-gradient(135deg, #ff5f6d 0%, #ffc371 100%);
  --e-grad: linear-gradient(135deg, #2193b0 0%, #6dd5ed 100%);
  --n-grad: linear-gradient(135deg, #bdc3c7 0%, #2c3e50 100%);
  --brand-glow: linear-gradient(135deg, #00d2ff 0%, #92fe9d 100%);
  --premium-grad: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --tm-mark-color: rgba(70, 70, 78, 0.46);
  --ion-anim-play-state: running;
  --nav-clearance: calc(16px + 56px * var(--global-nav-scale));
  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --segment-track-bg: rgba(0, 0, 0, 0.04);
  --segment-active-bg: #ffffff;
  --segment-text: #444444;
  --segment-text-hover: #000000;
  --segment-text-active: #1d1d1f;
  --segment-active-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --cat-alkali-bg: #ffcccc;
  --cat-alkali-fg: #5d2e2e;
  --cat-alkaline-bg: #ffe5cc;
  --cat-alkaline-fg: #5d402e;
  --cat-transition-bg: #fff2cc;
  --cat-transition-fg: #5d522e;
  --cat-post-bg: #d9e2f3;
  --cat-post-fg: #2e3a5d;
  --cat-metalloid-bg: #d1e7dd;
  --cat-metalloid-fg: #2e5d4b;
  --cat-other-bg: #e2f0d9;
  --cat-other-fg: #3a5d2e;
  --cat-halogen-bg: #ffffcc;
  --cat-halogen-fg: #5d5d2e;
  --cat-noble-bg: #e0ccff;
  --cat-noble-fg: #4b2e5d;
  --cat-lanthanide-bg: #fce4d6;
  --cat-lanthanide-fg: #5d3a2e;
  --cat-actinide-bg: #fddddd;
  --cat-actinide-fg: #5d2e2e;
  --cat-poly-cation-bg: #ffd9a3;
  --cat-poly-anion-bg: #cceeff;
  --cat-unknown-bg: #e0e0e0;
  --cat-unknown-fg: #666666;
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-snappy: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in: cubic-bezier(0.55, 0, 1, 0.45);
  --dur-instant: 120ms;
  --dur-fast: 180ms;
  --dur-normal: 280ms;
  --dur-slow: 400ms;
  --dur-morph: 500ms;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --hover-scale: 1.03;
  --press-scale: 0.97;
  --hover-shadow: var(--shadow-md)
}
.nav.global-nav {
  position: fixed;
  top: 12px;
  left: 12px;
  width: calc(100% - 24px);
  /* no max-width — stretch full width */
  height: calc(56px * var(--global-nav-scale));
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: calc(12px * var(--global-nav-scale));
  justify-content: space-between;
  border-radius: calc(28px * var(--global-nav-scale));
  border: 1px solid rgba(255, 255, 255, 0.5);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.06),
    0 1px 2px rgba(0, 0, 0, 0.04);
  padding: 0 calc(20px * var(--global-nav-scale));
  transition:
    height var(--dur-normal) var(--ease-smooth),
    padding var(--dur-normal) var(--ease-smooth),
    top var(--dur-normal) var(--ease-smooth),
    border-radius var(--dur-normal) var(--ease-smooth),
    left var(--dur-normal) var(--ease-smooth),
    width var(--dur-normal) var(--ease-smooth);
}
.zp-shared .global-nav-pill {
  display: flex;
  justify-content: center;
  gap: calc(4px * var(--global-nav-scale));
  background: var(--segment-track-bg);
  padding: calc(4px * var(--global-nav-scale));
  border-radius: calc(22px * var(--global-nav-scale));
  flex-shrink: 0;
  position: relative;
}
.zp-shared .nav-pill-slider {
  position: absolute;
  top: calc(4px * var(--global-nav-scale));
  left: 0;
  height: calc(100% - (8px * var(--global-nav-scale)));
  border-radius: calc(18px * var(--global-nav-scale));
  background: var(--segment-active-bg);
  box-shadow: var(--segment-active-shadow);
  transition: transform var(--dur-normal) var(--ease-spring),
    width var(--dur-normal) var(--ease-spring);
  z-index: 0;
  pointer-events: none;
}
.zp-shared .nav-pill-btn {
  padding: calc(8px * var(--global-nav-scale)) calc(20px * var(--global-nav-scale));
  border: none;
  border-radius: calc(18px * var(--global-nav-scale));
  background: transparent;
  color: var(--segment-text);
  font-size: calc(0.9rem * var(--global-nav-scale));
  font-weight: 600;
  line-height: 1.05;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-snappy), transform var(--dur-fast) var(--ease-snappy);
  white-space: nowrap;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(36px * var(--global-nav-scale));
  min-width: calc(74px * var(--global-nav-scale));
  text-align: center;
  z-index: 1;
}
.zp-shared .nav-pill-btn:hover:not(.active) {
  color: var(--segment-text-hover);
}
.zp-shared .nav-pill-btn.active {
  color: var(--segment-text-active);
}
.zp-shared .nav-pill-btn:active {
  transform: scale(var(--press-scale));
}
.zp-shared .global-nav .nav-btn-text {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  padding: 0.38em 0.8em;
  border-radius: 999px;
  background: rgba(29, 29, 31, 0.92);
  color: #fff;
  font-size: calc(12.5px * var(--global-nav-scale));
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.2;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, -3px);
  pointer-events: none;
  transition: opacity 0.14s ease, transform 0.14s ease;
  z-index: 5;
}
.zp-shared .global-nav.nav-c1 .nav-partner-btn,
.zp-shared .global-nav.nav-c2 .nav-discord-btn,
.zp-shared .global-nav.nav-c3 .nav-coffee-btn,
.zp-shared .global-nav.nav-c4 .nav-ios-btn,
.zp-shared .global-nav.nav-c5 .nav-fullscreen-toggle,
.zp-shared .global-nav.nav-c6 .nav-theme-toggle,
.zp-shared .global-nav.nav-c9 .lang-dropdown {
  display: none !important;
}
.zp-shared .global-nav.nav-c8 .nav-pill-btn {
  min-width: 0;
  padding-inline: calc(13px * var(--global-nav-scale));
}
.zp-shared .global-nav.nav-measuring,
.zp-shared .global-nav.nav-measuring * {
  transition: none !important;
}
.zp-shared .global-nav.nav-c8 {
  padding-inline: calc(14px * var(--global-nav-scale));
}
.zp-shared {
  --settings-card-bg: rgba(255, 255, 255, 0.72);
  --settings-card-border: rgba(0, 0, 0, 0.06);
  --settings-soft-bg: rgba(0, 0, 0, 0.035);
  --settings-divider: rgba(0, 0, 0, 0.06);
  --settings-shadow: 0 12px 36px rgba(20, 20, 35, 0.07)
}
.zp-shared .sv-card {
  background: var(--settings-card-bg);
  border: 1px solid var(--settings-card-border);
  border-radius: 22px;
  box-shadow: var(--settings-shadow);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}
.zp-shared .sv-card {
  padding: 20px 22px;
}
.zp-shared .sv-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.zp-shared .sv-icon-circle {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  background: rgba(0, 0, 0, 0.045);
  color: var(--text-primary);
}
.zp-shared .sv-icon-purple { background: rgba(139, 92, 246, 0.12); color: #8b5cf6; }
.zp-shared .sv-unit-icon { background: rgba(16, 185, 129, 0.12); color: #059669; }
.zp-shared .sv-card-icon-row h3 {
  margin: 0;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: 0;
}
.zp-shared .sv-card-icon-row h3 { font-size: 1.06rem; }
.zp-shared .sv-card-icon-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.zp-shared .sv-anim-row,
.zp-shared .sv-unit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
  min-height: 44px;
  padding: 10px 0;
}
.zp-shared .sv-anim-row + .sv-anim-row {
  border-top: 1px solid var(--settings-divider);
}
.zp-shared .sv-anim-label,
.zp-shared .sv-unit-label {
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 650;
  white-space: nowrap;
}
.zp-shared .sv-suggest-hint {
  margin: -6px 0 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.45;
}
.zp-shared .sv-suggest-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.zp-shared .sv-chip {
  padding: 6px 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.035);
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}
.zp-shared .sv-chip:hover {
  background: rgba(0, 0, 0, 0.07);
}
.zp-shared .sv-suggest-row {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  min-height: 150px;
}
.zp-shared .sv-suggest-input {
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: 340px;
  padding: 14px 16px 64px;
  border: 1px solid transparent;
  border-radius: 14px;
  background: var(--settings-soft-bg);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.94rem;
  line-height: 1.55;
  resize: none;
  outline: none;
}
.zp-shared .sv-suggest-input:focus {
  border-color: rgba(139, 92, 246, 0.5);
  background: rgba(255, 255, 255, 0.72);
}
.zp-shared .sv-suggest-actions-bottom {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}
.zp-shared .sv-suggest-actions-bottom > * {
  pointer-events: auto;
}
.zp-shared .sv-suggest-status {
  margin-right: auto;
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 600;
}
.zp-shared .sv-suggest-send {
  min-width: 92px;
  height: 38px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: #1d1d1f;
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.16);
}
.zp-shared .sv-suggest-send::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #10b981;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.1s ease;
  z-index: 1;
}
.zp-shared .sv-suggest-send.loading::after,
.zp-shared .sv-suggest-send.success::after {
  transform: scaleX(1);
}
.zp-shared .sv-send-content-default,
.zp-shared .sv-send-content-success {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.zp-shared .sv-send-content-success {
  position: absolute;
  inset: 0;
  opacity: 0;
}
.zp-shared .sv-suggest-send.success .sv-send-content-default { opacity: 0; }
.zp-shared .sv-suggest-send.success .sv-send-content-success { opacity: 1; }
.zp-shared .sv-suggest-send.error { background: #e74c3c; }
@media (max-width: 1180px) {

  .zp-shared .sv-card { padding: 18px; }
}
@media (max-width: 760px) {

  .zp-shared .sv-unit-row { align-items: stretch; flex-direction: column; }
}
@media (pointer: coarse) {
  .nav.global-nav {
    backdrop-filter: blur(8px) saturate(150%);
    -webkit-backdrop-filter: blur(8px) saturate(150%);
  }
}
.zp-settings-root.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(200, 195, 190, 0.2);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.4s ease,
    visibility 0.4s steps(1, end);
}
.zp-settings-root.modal-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition:
    opacity 0.4s ease,
    visibility 0s steps(1, start);
}
.zp-shared .modal-content {
  background: var(--modal-bg-glass);
  width: calc(100vw - clamp(10px, 6vw, 200px));
  min-width: 800px;
  height: calc(100vh - clamp(16px, 10vh, 200px));
  max-width: 1300px;
  max-height: 750px;
  border-radius: 32px;
  box-shadow: var(--shadow-xl);
  display: flex;
  overflow: hidden;
  transform: scale(0.96);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}
.zp-shared .modal-content.welcome-redesign {
  background: #ffffff;
  border: none;
  box-shadow: var(--shadow-xl);
}
.zp-shared .modal-content.changelog-modal-content {
  background: #ffffff;
  border: none;
  box-shadow: var(--shadow-xl);
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  position: relative;
}
.zp-settings-root.modal-overlay.active .modal-content {
  transform: scale(1);
}
.zp-shared .modal-top-buttons {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  gap: 8px;
  z-index: 200;
}
.zp-shared .modal-close {
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(0, 0, 0, 0.04);
  border-radius: 50%;
  color: #4f5d75;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--dur-fast) var(--ease-snappy);
  font-size: 1.4rem;
}
.zp-shared .modal-close:hover {
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  transform: scale(var(--hover-scale)) rotate(90deg);
}
.zp-shared .modal-close:active {
  transform: scale(var(--press-scale)) rotate(90deg);
}
.zp-shared .modal-info-pane {
  flex: 0 0 480px;
  min-width: 320px;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 150px;
  scroll-behavior: smooth;
  scroll-snap-type: y proximity;
  position: relative;
  z-index: 2;
  background: #ffffff;
}
.zp-shared .modal-info-pane.no-scroll {
  overflow: hidden;
  padding-bottom: 0;
}
.zp-shared .simplified-element-box {
  padding: 40px 40px 70px 40px;
  display: grid;
  grid-template-rows: minmax(0, 1fr);
  height: calc(100% - 100px);
  box-sizing: border-box;
  overflow-x: hidden;
  overflow-y: auto;
  position: relative;
  align-content: start;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.zp-shared .simplified-element-box::-webkit-scrollbar {
  display: none;
}
.zp-shared .cards-slider-wrapper {
  width: 100%;
  height: 100%;
  min-height: 0;
  position: relative;
  border-radius: 30px;
  overflow-x: hidden;
  overflow-y: visible;
  box-sizing: border-box;
  max-width: 100%;
  user-select: none;
  -webkit-user-select: none;
}
.zp-shared .cards-slider {
  display: flex;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: hidden;
  gap: 20px;
  scrollbar-width: none;
  perspective: 1200px;
  box-sizing: border-box;
  max-width: 100%;
}
.zp-shared .cards-slider::-webkit-scrollbar {
  display: none;
}
.zp-shared .card-slide {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  height: 100%;
  min-height: 0;
  flex-shrink: 0;
  scroll-snap-align: center;
  scroll-snap-stop: always;
  transform-style: preserve-3d;
  transform-origin: center center;
  will-change: transform;
  box-sizing: border-box;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.zp-shared .card-slide::-webkit-scrollbar {
  display: none;
}
.zp-shared .green-rectangle,
.zp-shared .blue-rectangle {
  width: 100%;
  height: 100%;
  border-radius: 30px;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  box-sizing: border-box;
  max-width: 100%;
  min-width: 0;
  background: #dbc59c;
  box-shadow: 0 3px 8px rgba(219, 197, 156, 0.4);
  position: relative;
}
.zp-shared .green-rectangle::-webkit-scrollbar,
.zp-shared .blue-rectangle::-webkit-scrollbar {
  display: none;
}
.zp-shared .info-row.atom-3d-row {
  align-items: center;
  margin-bottom: 14px;
}
.zp-shared .slider-dots .dot.atom-3d-dot {
  background: rgba(234, 179, 8, 0.45);
}
.zp-shared .slider-dots .dot.atom-3d-dot.active {
  background: #eab308;
}
:root[data-theme="dark"] .zp-shared .slider-dots .dot.atom-3d-dot { background: rgba(250, 204, 21, 0.4); }
:root[data-theme="dark"] .zp-shared .slider-dots .dot.atom-3d-dot.active { background: #facc15; }
.zp-shared .card-slide.atom-3d-card-slide {
  overflow: hidden;
}
.zp-shared .texture-matte::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: inherit;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='2.0' numOctaves='1' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.03);
  backdrop-filter: contrast(1.05);
}
.zp-shared .green-rectangle {
  background: #b0bed1;
  box-shadow: 0 3px 8px rgba(176, 190, 209, 0.4);
}
.zp-shared .blue-rectangle {
  background: #9dcbc3;
  box-shadow: 0 3px 8px rgba(157, 203, 195, 0.4);
}
.zp-shared .slider-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  width: max-content;
  max-width: 100%;
  position: absolute;
  bottom: 38px;
  left: 50%;
  transform: translateX(calc(-50% + var(--dots-shift-x, 0px))) translateY(50%);
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
.zp-shared .slider-dots {
  display: flex;
  justify-content: center;
  gap: 0;
}
.zp-shared .dot {
  width: 8px;
  height: 8px;
  margin: 0 5px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.1);
  transition:
    background 0.22s ease,
    box-shadow 0.22s ease,
    margin 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.22s ease,
    transform 0.24s cubic-bezier(0.22, 1, 0.36, 1),
    width 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  cursor: pointer;
  position: relative;
  opacity: 1;
  flex: 0 0 auto;
}
.zp-shared .dot.active {
  background: #000;
  transform: scale(1.15);
}
.zp-shared .dot:hover {
  background: #000;
  transform: scale(1.15);
}
.zp-shared .dot.locked {
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.3);
}
.zp-shared .dot.dot-entering {
  animation: dot-pop-in 0.34s cubic-bezier(0.2, 1.45, 0.35, 1) both;
}
.zp-shared .dot.dot-leaving {
  opacity: 0;
  transform: scale(0.35);
  pointer-events: none;
}
.zp-shared .dot.dot-collapsed {
  width: 0;
  margin-left: 0;
  margin-right: 0;
  opacity: 0;
  transform: scale(0.35);
  pointer-events: none;
}
.zp-shared .level-lock-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.05);
  transition: all 0.2s ease;
  color: rgba(0, 0, 0, 0.35);
  pointer-events: auto;
  z-index: 50;
}
.zp-shared .level-lock-btn:hover {
  background: rgba(0, 0, 0, 0.85);
  color: #ffffff;
  transform: scale(1.05);
}
.zp-shared .level-lock-btn svg {
  stroke: currentColor;
}
.zp-shared .level-lock-btn .lock-icon-unlocked {
  display: block;
}
.zp-shared .level-lock-btn .lock-icon-locked {
  display: none;
}
.zp-shared .level-lock-btn.locked {
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
}
.zp-shared .level-lock-btn.locked:hover {
  background: rgba(0, 0, 0, 0.85);
  color: #ffffff;
  transform: scale(1.05);
}
.zp-shared .level-lock-btn.locked .lock-icon-unlocked {
  display: none;
}
.zp-shared .level-lock-btn.locked .lock-icon-locked {
  display: block;
}
.zp-shared .modal-info-pane::-webkit-scrollbar {
  display: none;
}
.zp-shared .level-header {
  position: sticky;
  top: 0;
  background: #f9f6f0;
  backdrop-filter: blur(16px);
  z-index: 20;
  padding: 12px 20px 12px 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  height: 105px;
  box-sizing: border-box;
}
.zp-shared .modal-info-pane.scrolled .level-header {
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  background: rgba(249, 246, 240, 0.98);
}
.zp-shared .headline-content {
  display: flex;
  flex-direction: row;
  align-items: center;
  margin-left: 20px;
  margin-right: 20px;
  width: calc(100% - 40px);
  padding-top: 8px;
  /* Add top padding to show superscript charges */
}
.zp-shared .headline-left-group {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.zp-shared .headline-name {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-left: 40px;
  margin-right: 40px;
  min-width: 0;
  max-width: 100%;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--modal-text-main);
  overflow: visible;
  text-overflow: ellipsis;
  white-space: nowrap;
  box-sizing: border-box;
  line-height: 1.2;
  padding-top: 0.2em;
  padding-bottom: 0.2em;
}
.zp-shared .headline-numbers {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 0;
}
.zp-shared .headline-mass {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--modal-text-main);
  line-height: 1;
}
.zp-shared .headline-atomic {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--modal-text-main);
  line-height: 1;
}
.zp-shared .headline-symbol {
  font-size: 4.5rem;
  font-weight: 800;
  color: var(--modal-text-main);
  line-height: 1;
}
.zp-shared .card-info-container {
  --compact-top-row-gap: 16px;
  --compact-divider-gap: 12px;
  --compact-particles-gap: 6px;
  --compact-particles-margin: 16px;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 20px;
  color: #111827;
  font-family:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto,
    sans-serif;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
  box-sizing: border-box;
  max-width: 100%;
  min-width: 0;
}
.zp-shared .card-info-container::-webkit-scrollbar {
  display: none;
}
.zp-shared .info-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--compact-top-row-gap);
  position: relative;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
  gap: 10px;
  flex-shrink: 0;
  container-type: inline-size;
  overflow: hidden; /* Prevent horizontal stretching from long rigid children */
}
.zp-shared .info-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  opacity: 0.5;
  font-weight: 600;
  flex-shrink: 0;
  flex-basis: auto;
  min-width: fit-content;
  white-space: nowrap;
}
.zp-shared .info-value {
  font-size: 1.4rem;
  font-weight: 700;
  text-align: right;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.4);
  flex: 1 1 auto;
  min-width: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: normal;
  max-width: 100%;
  box-sizing: border-box;
}
.zp-shared .info-value.valence-compact {
  font-size: clamp(1rem, 3.6cqw, 1.2rem);
  line-height: 1.16;
}
.zp-shared .info-value.valence-expandable {
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease, color 0.2s ease;
}
.zp-shared .info-value.valence-expandable:hover {
  color: #2563EB;
}
.zp-shared .info-divider {
  height: 1px;
  background: linear-gradient(to right,
      transparent,
      rgba(0, 0, 0, 0.08),
      transparent);
  margin: -4px 0 var(--compact-divider-gap);
}
@media (max-height: 680px) {
  .zp-shared .green-rectangle .card-info-container {
    --compact-top-row-gap: 13px;
    --compact-divider-gap: 10px;
    --compact-particles-gap: 5px;
    --compact-particles-margin: 13px;
  }
}
@media (max-height: 680px) {
  .zp-shared .level-header {
    height: 85px;
    padding: 0 20px;
    display: flex;
    align-items: center;
  }
}
@media (max-height: 680px) {

  .zp-shared .headline-content {
    margin: 0;
    padding: 0;
    width: 100%;
  }
}
@media (max-height: 680px) {

  .zp-shared .headline-symbol {
    font-size: 3.8rem;
  }
}
@media (max-height: 680px) {

  .zp-shared .headline-mass,
.zp-shared .headline-atomic {
    font-size: 1.7rem;
  }
}
@media (max-height: 680px) {

  .zp-shared .headline-name {
    font-size: 2.1rem;
  }
}
@media (max-height: 680px) {
  .zp-shared .simplified-element-box {
    padding-bottom: 40px;
    height: calc(100% - 85px); /* Matches new header height exactly */
    overflow-y: hidden;
  }
}
@media (max-height: 680px) {

  .zp-shared .simplified-element-box .cards-slider-wrapper {
    overflow-y: hidden;
  }
}
@media (max-height: 680px) {

  .zp-shared .simplified-element-box .slider-controls {
    bottom: 20px;
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(50%) translateY(4px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 100;
    background: transparent;
  }
}
@media (max-height: 680px) {
  .zp-shared .simplified-element-box .slider-controls::before {
    content: "";
    position: absolute;
    bottom: -10px;
    left: -30px;
    right: -30px;
    top: -30px;
    pointer-events: auto;
    z-index: -1;
  }
}
@media (max-height: 680px) {
  .zp-shared .simplified-element-box .slider-controls:hover {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(50%);
  }
}
.zp-shared .ions-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  max-height: 100%;
  -ms-overflow-style: none;
  scrollbar-width: none;
  border-radius: 20px;
  padding: 14px 12px;
  margin-top: 0;
  background: rgba(255, 255, 255, 0.2);
  position: relative;
}
.zp-shared .ions-section::-webkit-scrollbar {
  display: none;
}
.zp-shared .ions-section .info-label {
  text-align: center;
  margin-bottom: 4px;
  opacity: 0.4;
  width: 100%;
}
.zp-shared .ion-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
  transition: transform 0.2s ease;
}
.zp-shared .ion-item:active {
  transform: scale(0.96);
}
.zp-shared .ion-symbol {
  font-family: "Baskerville", "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: #000;
  line-height: 1;
  /* Force line height to ignore sub/sup expansion */
}
.zp-shared .ion-symbol sub {
  vertical-align: baseline;
  position: relative;
  top: 0.3em;
  font-size: 0.7em;
  line-height: 0;
}
.zp-shared .ion-symbol sup {
  vertical-align: baseline;
  position: relative;
  top: -0.4em;
  font-size: 0.7em;
  line-height: 0;
}
.zp-shared .ion-symbol sub + sup {
  margin-left: -0.55em;
}
.zp-shared .info-row:has(.config-formula) .info-label {
  flex-shrink: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.zp-shared .info-value.config-formula {
  margin-top: 0;
  width: auto;
  max-width: 100%;
  display: block;
  text-align: right;
  font-size: clamp(0.7rem, 2.2vw, 1.35rem); /* Scaled down slightly on very narrow screens */
  white-space: nowrap;
  letter-spacing: -0.5px;
  line-height: 1.35;
  flex-shrink: 1; /* Allow it to shrink to prevent card stretching */
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis; /* Safely clip with ellipsis if still too wide */
}
.zp-shared .headline-symbol sup {
  font-size: 0.5em;
  vertical-align: super;
  font-weight: 600;
}
.zp-shared .headline-symbol sup.ion-charge {
  font-size: 0.45em;
  vertical-align: super;
  font-weight: 700;
  margin-left: 1px;
}
.zp-shared .headline-symbol sub {
  font-size: 0.55em;
  vertical-align: baseline;
  position: relative;
  bottom: -0.2em;
  font-weight: 600;
}
.zp-shared .headline-symbol {
  margin-right: 28px;
}
.zp-shared .headline-name.scrolling-name {
  position: relative;
  overflow: hidden;
  width: auto;
  max-width: 100%;
  flex: 1;
  min-width: 0;
  margin-left: 0;
  /* Let symbol margin handle spacing */
  margin-right: 20px;
  white-space: nowrap;
  justify-content: flex-start;
  text-align: left;
  -webkit-mask-image: linear-gradient(to right,
      black calc(100% - 60px),
      transparent 100%);
  mask-image: linear-gradient(to right,
      black calc(100% - 60px),
      transparent 100%);
}
.zp-shared .headline-name.scrolling-name .scrolling-text {
  display: inline-flex;
  padding-left: 0;
  /* Animation handled by JS */
}
.zp-shared .headline-name.scrolling-name .scrolling-text span {
  padding-right: 100px;
  /* Gap between loop items */
  flex-shrink: 0;
}
@media (pointer: coarse) {
  .zp-settings-root.modal-overlay {
    backdrop-filter: blur(10px) saturate(115%);
    -webkit-backdrop-filter: blur(10px) saturate(115%);
    background: rgba(200, 195, 190, 0.48);
  }
}
@media (pointer: coarse) {
  .zp-shared .modal-content {
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
}
.zp-shared .feature-modal-body {
  padding: 60px;
  height: 100%;
  overflow: auto;
  display: flex;
  flex-direction: column;
  position: relative;
}
.zp-shared .tool-padding-label {
  position: absolute;
  top: 20px;
  left: 60px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e293b;
  letter-spacing: -0.02em;
  pointer-events: none;
}
.zp-shared .feature-modal-body::-webkit-scrollbar {
  display: none;
}
.zp-shared .settings-modal {
  flex-direction: column;
}
.zp-shared .tool-modal-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
:root[data-theme="dark"] .zp-shared {
  --bg-color: #0e0e12;
  --element-bg: #1a1a22;
  --element-hover: #2a2a36;
  --text-primary: #e8e6f0;
  --text-secondary: #9a97a8;
  --text-muted: #605d6d;
  --text-highlight: #f0a050;
  --border-color: rgba(255, 255, 255, 0.06);
  --modal-bg-glass: rgba(22, 22, 30, 0.94);
  --modal-text-main: #ffffff;
  --modal-text-sub: #b0b0c0;
  --p-grad: linear-gradient(135deg, #d0505f 0%, #f0a060 100%);
  --e-grad: linear-gradient(135deg, #2a9ab0 0%, #75d5e8 100%);
  --n-grad: linear-gradient(135deg, #a0a8b0 0%, #3f4a5a 100%);
  --brand-glow: linear-gradient(135deg, #009ac0 0%, #70cc80 100%);
  --premium-grad: linear-gradient(135deg, #5568c8 0%, #6040a0 100%);
  --tm-mark-color: rgba(198, 208, 232, 0.62);
  --cat-alkali-bg: #6c303d;
  --cat-alkali-fg: #ff9ca8;
  --cat-alkaline-bg: #6b5425;
  --cat-alkaline-fg: #ffd37d;
  --cat-transition-bg: #666122;
  --cat-transition-fg: #fff27a;
  --cat-post-bg: #354782;
  --cat-post-fg: #8fc9ff;
  --cat-metalloid-bg: #1f5d53;
  --cat-metalloid-fg: #8ff2dc;
  --cat-other-bg: #446227;
  --cat-other-fg: #97f26f;
  --cat-halogen-bg: #6c6a27;
  --cat-halogen-fg: #fff07a;
  --cat-noble-bg: #5a347f;
  --cat-noble-fg: #d79aff;
  --cat-lanthanide-bg: #8b5b2d;
  --cat-lanthanide-fg: #ffbf80;
  --cat-actinide-bg: #7a3655;
  --cat-actinide-fg: #ff92be;
  --cat-poly-cation-bg: #382a10;
  --cat-poly-anion-bg: #142840;
  --cat-unknown-bg: #2a2a32;
  --cat-unknown-fg: #aaaaaa;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.6)
}
:root[data-theme="dark"] .nav.global-nav {
  background: rgba(18, 18, 24, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.35),
    0 1px 2px rgba(0, 0, 0, 0.2);
}
:root[data-theme="dark"] .zp-shared {
  --segment-track-bg: rgba(255, 255, 255, 0.06);
  --segment-active-bg: rgba(255, 255, 255, 0.12);
  --segment-text: #888888;
  --segment-text-hover: #cccccc;
  --segment-text-active: #ffffff;
  --segment-active-shadow: 0 1px 3px rgba(0, 0, 0, 0.35)
}
:root[data-theme="dark"] .zp-shared .global-nav-pill {
  background: var(--segment-track-bg);
}
:root[data-theme="dark"] .zp-shared .nav-pill-slider {
  background: var(--segment-active-bg);
  box-shadow: var(--segment-active-shadow);
}
:root[data-theme="dark"] .zp-settings-root.modal-overlay {
  background: rgba(0, 0, 0, 0.45);
}
:root[data-theme="dark"] .zp-shared .modal-content {
  background: var(--modal-bg-glass);
  border-color: rgba(255, 255, 255, 0.06);
  box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.55);
}
:root[data-theme="dark"] .zp-shared .modal-content.welcome-redesign {
  background: #1C1C1E;
  box-shadow: 0 50px 120px -30px rgba(0, 0, 0, 0.6);
}
:root[data-theme="dark"] .zp-shared .modal-content.changelog-modal-content {
  background: #1C1C1E;
  box-shadow: 0 50px 120px -30px rgba(0, 0, 0, 0.6);
}
:root[data-theme="dark"] .zp-shared .modal-close {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  opacity: 0.6;
}
:root[data-theme="dark"] .zp-shared .modal-close:hover {
  background: rgba(255, 255, 255, 0.9);
  color: #000000;
  opacity: 1;
}
:root[data-theme="dark"] .zp-shared .modal-info-pane {
  background: #1C1C1E;
}
:root[data-theme="dark"] .zp-shared .level-header {
  background: #181820;
}
:root[data-theme="dark"] .zp-shared .modal-info-pane.scrolled .level-header {
  background: rgba(24, 24, 32, 0.98);
  border-bottom-color: rgba(255, 255, 255, 0.06);
}
:root[data-theme="dark"] .zp-shared .headline-name {
  color: #fff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}
:root[data-theme="dark"] .zp-shared .headline-symbol {
  color: #fff;
  opacity: 0.95;
}
:root[data-theme="dark"] .zp-shared .headline-mass,
:root[data-theme="dark"] .zp-shared .headline-atomic {
  color: rgba(255, 255, 255, 0.85);
}
:root[data-theme="dark"] .zp-shared .green-rectangle {
  background: #1d2430;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.42);
  border: 1px solid rgba(176, 190, 209, 0.13); /* Tinted hairline */
}
:root[data-theme="dark"] .zp-shared .blue-rectangle {
  background: #1D2E2B;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(157, 203, 195, 0.15);
}
:root[data-theme="dark"] .zp-shared .texture-matte::before {
  opacity: 0.05 !important;
  mix-blend-mode: overlay;
  box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.1); /* Subtle depth */
}
:root[data-theme="dark"] .zp-shared .ions-section {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  border-radius: 16px;
}
:root[data-theme="dark"] .zp-shared .ions-section .info-label {
  color: rgba(255, 255, 255, 0.8);
}
:root[data-theme="dark"] .zp-shared .ion-item {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-radius: 12px;
}
:root[data-theme="dark"] .zp-shared .ion-symbol {
  color: #F5E0A7 !important;
}
:root[data-theme="dark"] .zp-shared .dot {
  background: rgba(255, 255, 255, 0.12);
}
:root[data-theme="dark"] .zp-shared .dot.active {
  background: #fff;
}
:root[data-theme="dark"] .zp-shared .dot:hover {
  background: #fff;
}
:root[data-theme="dark"] .zp-shared .simplified-element-box {
  background: #1C1C1E;
  border-top-color: rgba(255, 255, 255, 0.08);
}
:root[data-theme="dark"] .zp-shared {
  --modal-bg: #1C1C1E;
  --modal-text-main: rgba(255, 255, 255, 0.9);
  --modal-text-sub: rgba(255, 255, 255, 0.55)
}
:root[data-theme="dark"] .zp-shared .level-lock-btn {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.4);
}
:root[data-theme="dark"] .zp-shared .level-lock-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.7);
}
:root[data-theme="dark"] .zp-shared .level-lock-btn.locked {
  background: rgba(255, 255, 255, 0.8);
  color: #111;
}
:root[data-theme="dark"] .zp-shared .card-info-container {
  color: #e8e6f0;
}
:root[data-theme="dark"] .zp-shared .info-label {
  color: rgba(255, 255, 255, 0.45);
}
:root[data-theme="dark"] .zp-shared .info-value {
  color: #e8e6f0;
  text-shadow: none;
}
:root[data-theme="dark"] .zp-shared .sv-card {
  background: rgba(24, 24, 32, 0.7);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border-color: rgba(255, 255, 255, 0.06);
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.15),
    0 8px 24px rgba(0, 0, 0, 0.2);
}
:root[data-theme="dark"] .zp-shared .sv-card:hover {
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.2),
    0 12px 32px rgba(0, 0, 0, 0.3);
}
:root[data-theme="dark"] .zp-shared .sv-icon-circle {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}
:root[data-theme="dark"] .zp-shared .sv-icon-purple {
  background: rgba(90, 100, 200, 0.15);
  color: #8090e0;
}
:root[data-theme="dark"] .zp-shared .sv-unit-icon {
  background: rgba(16, 185, 129, 0.12);
  color: #3cc999;
}
:root[data-theme="dark"] .zp-shared .tool-modal-title {
  color: var(--text-primary);
}
:root[data-theme="dark"] .zp-shared .tool-padding-label {
  color: var(--text-primary);
}
:root[data-theme="dark"] .zp-shared .feature-modal-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
}
:root[data-theme="dark"] .zp-shared .feature-modal-body::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}
:root[data-theme="dark"] .zp-shared .global-nav .nav-btn-text {
  background: rgba(244, 241, 236, 0.96);
  color: #111;
}
.zp-settings-root.modal-overlay,
.zp-shared .modal-content,
.zp-shared .feature-modal-body {
  min-width: 0;
  max-width: 100%;
}
.zp-shared .modal-content :is(img, svg, canvas, video) {
  max-width: 100%;
}
@media (max-width: 799px) {
  .zp-shared .modal-content {
    width: calc(100vw - 20px);
    min-width: 0;
    max-height: calc(100vh - 20px);
    border-radius: 20px;
  }
}
@media (max-width: 799px) {

  .zp-shared .modal-content.welcome-redesign {
    min-width: 0;
  }
}