.openqcm-calc {
  --bg:       #ffffff;
  --bg2:      #f6f6f4;
  --surface:  #ffffff;
  --surface2: #f7f8f7;
  --surface3: #eef1ef;
  --border:   rgba(10,10,12,0.10);
  --border2:  rgba(10,10,12,0.18);
  --accent:   #0286b3;
  --accent-g: #0a8f5b;
  --accent-v: #6d5bd0;
  --accent-w: #b8770a;
  --accent-r: #c0392b;
  --text:     #0a0a0c;
  --text2:    rgba(10,10,12,0.68); /* 2026-10-04: 4.5:1 on white */
  --text3:    rgba(10,10,12,0.74);
  --sauerbrey: #0286b3;
  --kanazawa:  #0a8f5b;
  --voigt:     #6d5bd0;
  --inverse:   #b8770a;
  --mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', monospace;
  --sans: 'Geist', system-ui, -apple-system, sans-serif;
  --glow-s: 0 8px 30px rgba(2,134,179,0.12);
  --glow-k: 0 8px 30px rgba(10,143,91,0.12);
  --glow-v: 0 8px 30px rgba(109,91,208,0.12);
  --glow-i: 0 8px 30px rgba(184,119,10,0.12);
}
.openqcm-calc * { margin:0; padding:0; box-sizing:border-box; }
.openqcm-calc { scroll-behavior: smooth; }
.openqcm-calc {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 20px 16px 40px;
  overflow-x: hidden;
}
.openqcm-calc::before {
  content:'';
  position:fixed; inset:0;
  background:
    radial-gradient(ellipse 800px 600px at 15% 10%, rgba(59,158,255,0.06) 0%, transparent 70%),
    radial-gradient(ellipse 600px 500px at 85% 30%, rgba(167,139,250,0.05) 0%, transparent 70%),
    radial-gradient(ellipse 500px 400px at 50% 80%, rgba(0,214,143,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index:0;
  animation: oqc-meshDrift 20s ease-in-out infinite alternate;
}
@keyframes oqc-meshDrift {
  0%   { opacity:0.7; }
  50%  { opacity:1; }
  100% { opacity:0.7; }
}
.openqcm-calc .container {
  position: relative;
  z-index:1;
  max-width: 1320px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(30px) scale(0.985);
  animation: oqc-containerIn 0.9s cubic-bezier(0.16,1,0.3,1) 0.1s forwards;
}
@keyframes oqc-containerIn {
  to { opacity:1; transform:translateY(0) scale(1); }
}
.openqcm-calc .exp-banner {
  background: linear-gradient(90deg, rgba(245,158,11,0.08), rgba(245,158,11,0.04), rgba(245,158,11,0.08));
  border-bottom: 1px solid rgba(245,158,11,0.15);
  overflow: hidden;
  white-space: nowrap;
  padding: 6px 0;
}
.openqcm-calc .exp-banner-inner {
  display: inline-block;
  animation: oqc-bannerScroll 35s linear infinite;
  font-family: var(--mono);
  font-size: 0.72em;
  color: rgba(245,158,11,0.7);
  letter-spacing: 0.04em;
}
@keyframes oqc-bannerScroll {
  0%   { transform: translateX(100%); }
  100% { transform: translateX(-100%); }
}
.openqcm-calc .exp-banner:hover .exp-banner-inner {
  animation-play-state: paused;
  color: rgba(245,158,11,0.9);
}
.openqcm-calc .glass {
  background: linear-gradient(145deg, rgba(17,24,35,0.85), rgba(12,16,24,0.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.03);
}
.openqcm-calc .header {
  padding: 40px 44px 36px;
  display: flex;
  align-items: center;
  gap: 36px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.openqcm-calc .header::before {
  content:'';
  position:absolute;
  inset:0;
  background:
    repeating-linear-gradient(60deg, transparent, transparent 80px, rgba(59,158,255,0.02) 80px, rgba(59,158,255,0.02) 81px),
    repeating-linear-gradient(-60deg, transparent, transparent 80px, rgba(167,139,250,0.02) 80px, rgba(167,139,250,0.02) 81px),
    repeating-linear-gradient(0deg, transparent, transparent 60px, rgba(0,214,143,0.015) 60px, rgba(0,214,143,0.015) 61px);
  pointer-events:none;
  animation: oqc-latticeShift 30s linear infinite;
}
@keyframes oqc-latticeShift {
  to { transform: translateX(160px); }
}
.openqcm-calc .header::after {
  content:'';
  position:absolute;
  top:-100px; right:-60px;
  width:380px; height:380px;
  background: radial-gradient(circle, rgba(59,158,255,0.08) 0%, transparent 60%);
  pointer-events:none;
  animation: oqc-orbPulse 6s ease-in-out infinite;
}
@keyframes oqc-orbPulse {
  0%,100% { opacity:0.5; transform:scale(1); }
  50% { opacity:1; transform:scale(1.15); }
}
.openqcm-calc .logo {
  height:160px; width:auto; mix-blend-mode: screen; position:relative; z-index:1;
  transition: transform 0.3s, filter 0.3s;
}
.openqcm-calc .logo:hover {
  transform: scale(1.03);
  filter: brightness(1.15);
}
.openqcm-calc .header-text { flex:1; position:relative; z-index:1; }
.openqcm-calc .header h1 {
  font-family: var(--sans);
  font-size: 2.2em;
  font-weight: 300;
  letter-spacing: -0.5px;
  color: var(--text);
  line-height: 1.15;
  margin-bottom: 6px;
}
.openqcm-calc .header h1 strong {
  font-weight: 700;
  color: white;
}
.openqcm-calc .header-sub {
  font-size: 0.92em;
  color: var(--text2);
  letter-spacing: 0.4px;
  font-weight: 400;
}
.openqcm-calc .back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 0.82em;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.25s, gap 0.25s;
  opacity: 0;
  animation: oqc-badgePop 0.5s cubic-bezier(0.16,1,0.3,1) 0.8s forwards;
}
.openqcm-calc .back-link:hover {
  color: white;
  gap: 6px;
}
.openqcm-calc .header-export {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
}
.openqcm-calc .export-progress-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(7, 9, 13, 0.75);
  backdrop-filter: blur(6px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.openqcm-calc .export-progress-overlay.active { display: flex; }
.openqcm-calc .export-progress-box {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 18px;
  padding: 36px 48px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  min-width: 340px;
  animation: oqc-panelIn 0.4s cubic-bezier(0.16,1,0.3,1);
}
.openqcm-calc .export-progress-title {
  font-family: var(--sans);
  font-size: 1.05em;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.openqcm-calc .export-progress-step {
  font-family: var(--mono);
  font-size: 0.78em;
  color: var(--text2);
  margin-bottom: 18px;
  min-height: 1.2em;
}
.openqcm-calc .export-progress-track {
  width: 100%;
  height: 6px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.openqcm-calc .export-progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--sauerbrey), var(--voigt), var(--inverse));
  transition: width 0.3s cubic-bezier(0.16,1,0.3,1);
  position: relative;
}
.openqcm-calc .export-progress-fill::after {
  content:'';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  animation: oqc-progressShimmer 1.5s ease-in-out infinite;
}
@keyframes oqc-progressShimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}
.openqcm-calc .export-progress-pct {
  font-family: var(--mono);
  font-size: 0.82em;
  font-weight: 600;
  color: var(--accent);
  margin-top: 10px;
}
.openqcm-calc .header-badges {
  display:flex; gap:10px; margin-top:14px; flex-wrap:wrap;
}
.openqcm-calc .hbadge {
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.78em;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: 1px solid;
  opacity:0;
  animation: oqc-badgePop 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
  position: relative;
  overflow: hidden;
}
.openqcm-calc .hbadge::before {
  content:'';
  position:absolute;
  inset:0;
  opacity:0.15;
  border-radius:inherit;
}
.openqcm-calc .hbadge:nth-child(1) { animation-delay:0.4s; }
.openqcm-calc .hbadge:nth-child(2) { animation-delay:0.55s; }
.openqcm-calc .hbadge:nth-child(3) { animation-delay:0.7s; }
@keyframes oqc-badgePop {
  0% { opacity:0; transform:scale(0.3) translateY(10px); filter:blur(4px); }
  60% { opacity:1; transform:scale(1.12) translateY(-2px); filter:blur(0); }
  80% { transform:scale(0.95) translateY(1px); }
  100% { opacity:1; transform:scale(1) translateY(0); }
}
.openqcm-calc .hbadge.s { color:var(--sauerbrey); border-color:rgba(59,158,255,0.3); background:rgba(59,158,255,0.08); animation: oqc-badgePop 0.6s cubic-bezier(0.16,1,0.3,1) forwards, oqc-badgeFloat 4s ease-in-out 1.5s infinite; }
.openqcm-calc .hbadge.k { color:var(--kanazawa); border-color:rgba(0,214,143,0.3); background:rgba(0,214,143,0.08); animation: oqc-badgePop 0.6s cubic-bezier(0.16,1,0.3,1) forwards, oqc-badgeFloat 4s ease-in-out 2s infinite; }
.openqcm-calc .hbadge.v { color:var(--voigt); border-color:rgba(167,139,250,0.3); background:rgba(167,139,250,0.08); animation: oqc-badgePop 0.6s cubic-bezier(0.16,1,0.3,1) forwards, oqc-badgeFloat 4s ease-in-out 2.5s infinite; }
.openqcm-calc .hbadge.i { color:var(--inverse); border-color:rgba(245,158,11,0.3); background:rgba(245,158,11,0.08); animation: oqc-badgePop 0.6s cubic-bezier(0.16,1,0.3,1) forwards, oqc-badgeFloat 4s ease-in-out 3s infinite; }
@keyframes oqc-badgeFloat {
  0%,100% { transform:translateY(0); }
  50% { transform:translateY(-2px); }
}
.openqcm-calc .guide-toggle {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding: 16px 22px;
  cursor:pointer;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
  user-select:none;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--glow-s);
  margin-bottom: 22px;
}
.openqcm-calc .guide-toggle:hover {
  border-color: var(--border2);
  border-left-color: var(--accent);
  background: rgba(2,134,179,0.04);
}
.openqcm-calc .guide-toggle h2 {
  font-family: var(--mono);
  font-size: 0.8em;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  display:flex; align-items:center; gap:10px;
}
.openqcm-calc .guide-toggle h2::before {
  content:'';
  width:7px; height:7px; border-radius:50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(2,134,179,0.18);
  flex:0 0 7px;
}
.openqcm-calc .guide-chevron {
  font-size:0.68em;
  transition:transform 0.4s cubic-bezier(0.34,1.56,0.64,1), background 0.2s;
  color:#fff;
  display:inline-flex; align-items:center; justify-content:center;
  width:26px; height:26px; border-radius:50%;
  background: var(--accent);
  flex:0 0 26px;
}
.openqcm-calc .guide-chevron.open { transform:rotate(180deg); }
.openqcm-calc .guide-toggle:hover .guide-chevron { background:#02719a; }
.openqcm-calc .guide-body {
  max-height:0;
  overflow:hidden;
  transition: max-height 0.7s cubic-bezier(0.16,1,0.3,1);
  border-radius: 14px;
  background: var(--bg2);
}
.openqcm-calc .guide-body.open {
  max-height:8000px;
  border:1px solid var(--border);
  margin-bottom: 22px;
}
.openqcm-calc .guide-inner {
  padding: 36px 44px 40px;
}
.openqcm-calc .guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
.openqcm-calc .guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 26px;
  transition: border-color 0.4s, box-shadow 0.4s, transform 0.4s cubic-bezier(0.16,1,0.3,1);
  opacity: 0;
  transform: translateY(16px);
}
.openqcm-calc .guide-body.open .guide-card {
  animation: oqc-guideCardIn 0.5s cubic-bezier(0.16,1,0.3,1) forwards;
}
.openqcm-calc .guide-body.open .guide-card:nth-child(1) { animation-delay: 0.05s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(2) { animation-delay: 0.12s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(3) { animation-delay: 0.19s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(4) { animation-delay: 0.26s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(5) { animation-delay: 0.33s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(6) { animation-delay: 0.4s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(7) { animation-delay: 0.47s; }
.openqcm-calc .guide-body.open .guide-card:nth-child(8) { animation-delay: 0.54s; }
@keyframes oqc-guideCardIn {
  from { opacity:0; transform:translateY(16px) scale(0.97); }
  to { opacity:1; transform:translateY(0) scale(1); }
}
.openqcm-calc .guide-card:hover {
  border-color: var(--border2);
  box-shadow: 0 10px 36px rgba(0,0,0,0.25);
  transform: translateY(-2px);
}
.openqcm-calc .guide-card.full { grid-column: 1 / -1; }
.openqcm-calc .guide-card .gc-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.openqcm-calc .guide-card .gc-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--border);
}
.openqcm-calc .guide-card .gc-icon::before {
  content: '';
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--gc-accent, var(--accent));
}
.openqcm-calc .guide-card .gc-icon.s { --gc-accent: var(--sauerbrey); background: color-mix(in srgb, var(--sauerbrey) 8%, #fff); }
.openqcm-calc .guide-card .gc-icon.k { --gc-accent: var(--kanazawa);  background: color-mix(in srgb, var(--kanazawa) 8%, #fff); }
.openqcm-calc .guide-card .gc-icon.v { --gc-accent: var(--voigt);     background: color-mix(in srgb, var(--voigt) 8%, #fff); }
.openqcm-calc .guide-card .gc-icon.i { --gc-accent: var(--inverse);   background: color-mix(in srgb, var(--inverse) 8%, #fff); }
.openqcm-calc .guide-card .gc-title {
  font-size: 0.92em;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.2px;
}
.openqcm-calc .guide-card .gc-subtitle {
  font-size: 0.78em;
  color: var(--text2);
  margin-top: 2px;
}
.openqcm-calc .guide-card p {
  font-size: 0.85em;
  line-height: 1.75;
  color: var(--text2);
  margin-bottom: 10px;
}
.openqcm-calc .guide-card p:last-child { margin-bottom: 0; }
.openqcm-calc .guide-card strong { color: var(--text3); }
.openqcm-calc .guide-card code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg);
  padding: 2px 8px;
  border-radius: 5px;
  color: var(--accent);
  border: 1px solid var(--border);
}
.openqcm-calc .guide-card ul {
  margin: 8px 0 12px 20px;
  font-size: 0.85em;
  line-height: 1.75;
  color: var(--text2);
}
.openqcm-calc .guide-card li { margin-bottom: 4px; }
.openqcm-calc .guide-card li strong { color: var(--text3); }
.openqcm-calc .regime-bar {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  margin: 14px 0 8px;
  height: 32px;
  font-size: 0.72em;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.openqcm-calc .regime-bar > div {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  white-space: nowrap;
}
.openqcm-calc .regime-bar .rg-rigid { flex: 1; background: rgba(0,214,143,0.15); color: var(--kanazawa); border-right: 1px solid var(--border); }
.openqcm-calc .regime-bar .rg-soft { flex: 1; background: rgba(245,158,11,0.12); color: var(--accent-w); border-right: 1px solid var(--border); }
.openqcm-calc .regime-bar .rg-visco { flex: 1; background: rgba(167,139,250,0.12); color: var(--voigt); }
.openqcm-calc .regime-labels {
  display: flex;
  font-size: 0.72em;
  color: var(--text2);
  font-family: var(--mono);
}
.openqcm-calc .regime-labels span { flex: 1; text-align: center; }
.openqcm-calc .model-nav {
  display: flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg-soft, #f6f6f4);
  position: relative;
}
.openqcm-calc .model-btn {
  flex:1;
  padding: 14px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text2);
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--sans);
  position: relative;
  text-align: left;
}
.openqcm-calc .model-btn:hover {
  color: var(--text);
  background: rgba(10,10,12,0.035);
}
.openqcm-calc .model-btn.active {
  background: #fff;
  border-color: var(--border);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(10,10,12,0.04);
}
.openqcm-calc .model-btn:active { transform: translateY(0.5px); }
.openqcm-calc .model-btn[data-model="sauerbrey"] { --active-color: var(--sauerbrey); }
.openqcm-calc .model-btn[data-model="kanazawa"]  { --active-color: var(--kanazawa); }
.openqcm-calc .model-btn[data-model="voigt"]     { --active-color: var(--voigt); }
.openqcm-calc .model-btn[data-model="inverse"]   { --active-color: var(--inverse); }
.openqcm-calc .model-btn.active[data-model="sauerbrey"] { box-shadow: inset 2px 0 0 var(--sauerbrey), 0 1px 2px rgba(10,10,12,0.04); }
.openqcm-calc .model-btn.active[data-model="kanazawa"]  { box-shadow: inset 2px 0 0 var(--kanazawa),  0 1px 2px rgba(10,10,12,0.04); }
.openqcm-calc .model-btn.active[data-model="voigt"]     { box-shadow: inset 2px 0 0 var(--voigt),     0 1px 2px rgba(10,10,12,0.04); }
.openqcm-calc .model-btn.active[data-model="inverse"]   { box-shadow: inset 2px 0 0 var(--inverse),   0 1px 2px rgba(10,10,12,0.04); }
.openqcm-calc .model-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--active-color, var(--accent));
  opacity: 0.45;
  transition: opacity 0.25s ease, box-shadow 0.25s ease;
}
.openqcm-calc .model-btn:hover .model-dot { opacity: 0.7; }
.openqcm-calc .model-btn.active .model-dot {
  opacity: 1;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--active-color) 18%, transparent);
}
.openqcm-calc .model-title {
  font-size: 0.92em;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.openqcm-calc .model-subtitle {
  font-family: var(--mono);
  font-size: 0.64em;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text2);
  margin-top: 4px;
  transition: color 0.25s ease;
}
.openqcm-calc .model-btn.active .model-subtitle { color: var(--text3); }
.openqcm-calc .model-panel { display:none; padding: 32px; }
.openqcm-calc .model-panel.active { display:block; animation: oqc-panelIn 0.55s cubic-bezier(0.16,1,0.3,1); }
@keyframes oqc-panelIn {
  from { opacity:0; transform:translateY(18px) scale(0.99); }
  to { opacity:1; transform:translateY(0) scale(1); }
}
.openqcm-calc .model-panel.active > .grid-2 > .card:nth-child(1) { animation: oqc-cardSlideIn 0.5s cubic-bezier(0.16,1,0.3,1) 0.05s both; }
.openqcm-calc .model-panel.active > .grid-2 > .card:nth-child(2) { animation: oqc-cardSlideIn 0.5s cubic-bezier(0.16,1,0.3,1) 0.15s both; }
.openqcm-calc .model-panel.active > .bottom-grid > *:nth-child(1) { animation: oqc-cardSlideIn 0.5s cubic-bezier(0.16,1,0.3,1) 0.2s both; }
.openqcm-calc .model-panel.active > .bottom-grid > *:nth-child(2) { animation: oqc-cardSlideIn 0.5s cubic-bezier(0.16,1,0.3,1) 0.28s both; }
@keyframes oqc-cardSlideIn {
  from { opacity:0; transform:translateY(20px) scale(0.97); }
  to { opacity:1; transform:translateY(0) scale(1); }
}
.openqcm-calc .grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}
.openqcm-calc .card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  transition: box-shadow 0.5s cubic-bezier(0.16,1,0.3,1), border-color 0.5s, transform 0.5s cubic-bezier(0.16,1,0.3,1);
  position: relative;
  overflow: hidden;
}
.openqcm-calc .card::before {
  content:'';
  position:absolute;
  inset: -1px;
  border-radius: 17px;
  background: conic-gradient(from var(--card-angle, 0deg), transparent 60%, rgba(59,158,255,0.15) 70%, rgba(167,139,250,0.15) 80%, transparent 90%);
  opacity:0;
  transition: opacity 0.5s;
  z-index: -1;
  animation: oqc-cardShimmer 4s linear infinite;
}
@keyframes oqc-cardShimmer {
  to { --card-angle: 360deg; }
}
@property --card-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}
.openqcm-calc .card:hover {
  border-color: var(--border2);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
  transform: translateY(-2px);
}
.openqcm-calc .card:hover::before { opacity:1; }
.openqcm-calc .card-title {
  font-size: 0.78em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text2);
  margin-bottom: 22px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.openqcm-calc .card-title span {
  font-family: var(--mono);
  font-size: 0.88em;
  color: var(--accent);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}
.openqcm-calc .field { margin-bottom: 18px; }
.openqcm-calc .field label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 7px;
  font-size: 0.84em;
  font-weight: 600;
  color: var(--text3);
}
.openqcm-calc .field label .unit {
  font-family: var(--mono);
  font-size: 0.82em;
  color: var(--text2);
  font-weight: 400;
}
.openqcm-calc .field input, .openqcm-calc .field select {
  width: 100%;
  padding: 11px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.95em;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s, transform 0.2s;
  -moz-appearance: textfield;
  position: relative;
}
.openqcm-calc .field input::-webkit-outer-oqc-spin-button, .openqcm-calc .field input::-webkit-inner-oqc-spin-button { -webkit-appearance:none; }
.openqcm-calc .field input:focus, .openqcm-calc .field select:focus {
  outline:none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,158,255,0.1), 0 0 24px rgba(59,158,255,0.08);
  background: rgba(7,9,13,0.9);
  animation: oqc-inputFocusPulse 1.5s ease-in-out infinite;
}
@keyframes oqc-inputFocusPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(59,158,255,0.1), 0 0 20px rgba(59,158,255,0.06); }
  50% { box-shadow: 0 0 0 4px rgba(59,158,255,0.15), 0 0 30px rgba(59,158,255,0.1); }
}
.openqcm-calc .field .hint {
  font-size: 0.74em;
  color: var(--text2);
  margin-top: 5px;
  font-family: var(--mono);
  opacity: 0.8;
}
.openqcm-calc .field .err {
  font-size: 0.78em;
  color: var(--accent-r);
  margin-top: 5px;
  display: none;
  font-weight: 500;
}
.openqcm-calc .separator {
  border:none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border2), transparent);
  margin:18px 0;
}
.openqcm-calc .field-group-label {
  font-size: 0.72em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text2);
  margin-bottom: 14px;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.openqcm-calc .field-group-label::before {
  content:'';
  width: 3px; height: 14px;
  border-radius: 2px;
  background: var(--accent);
  flex-shrink:0;
}
.openqcm-calc .toggle-row { display: flex; gap: 8px; margin-bottom: 18px; }
.openqcm-calc .tbtn {
  flex:1;
  padding: 9px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.82em;
  font-weight: 600;
  color: var(--text2);
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  position: relative;
  overflow: hidden;
}
.openqcm-calc .tbtn::after {
  content:'';
  position:absolute;
  inset:0;
  background: radial-gradient(circle at center, currentColor 0%, transparent 70%);
  opacity:0;
  transition: opacity 0.4s;
}
.openqcm-calc .tbtn:hover { border-color: var(--text2); color: var(--text); transform: translateY(-2px); }
.openqcm-calc .tbtn:hover::after { opacity: 0.04; }
.openqcm-calc .tbtn:active { transform: scale(0.96) translateY(0); transition-duration: 0.1s; }
.openqcm-calc .tbtn.active-s {
  border-color: var(--sauerbrey); color: var(--sauerbrey); background: rgba(59,158,255,0.06);
  box-shadow: 0 0 20px rgba(59,158,255,0.1), inset 0 0 20px rgba(59,158,255,0.03);
  animation: oqc-toggleActivate 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
.openqcm-calc .tbtn.active-k {
  border-color: var(--kanazawa); color: var(--kanazawa); background: rgba(0,214,143,0.06);
  box-shadow: 0 0 20px rgba(0,214,143,0.1), inset 0 0 20px rgba(0,214,143,0.03);
  animation: oqc-toggleActivate 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
.openqcm-calc .tbtn.active-v {
  border-color: var(--voigt); color: var(--voigt); background: rgba(167,139,250,0.06);
  box-shadow: 0 0 20px rgba(167,139,250,0.1), inset 0 0 20px rgba(167,139,250,0.03);
  animation: oqc-toggleActivate 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
.openqcm-calc .tbtn.active-i {
  border-color: var(--inverse); color: var(--inverse); background: rgba(245,158,11,0.06);
  box-shadow: 0 0 20px rgba(245,158,11,0.1), inset 0 0 20px rgba(245,158,11,0.03);
  animation: oqc-toggleActivate 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes oqc-toggleActivate {
  0% { transform: scale(0.93); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}
.openqcm-calc .result-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 15px 18px;
  margin-bottom: 10px;
  transition: all 0.35s cubic-bezier(0.16,1,0.3,1);
  position: relative;
  overflow: hidden;
}
.openqcm-calc .result-block:hover {
  border-color: var(--border2);
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
  transform: translateX(3px);
}
.openqcm-calc .result-block.primary {
  border-left: 3px solid var(--res-color, var(--accent));
  border-radius: 0 12px 12px 0;
}
.openqcm-calc .result-block.primary::after {
  content:'';
  position:absolute;
  top:0; left:-100%; width:60%; height:100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.02), transparent);
  transition: none;
  pointer-events:none;
}
.openqcm-calc .result-block.primary:hover::after {
  animation: oqc-resultShimmer 0.8s ease forwards;
}
@keyframes oqc-resultShimmer {
  to { left: 150%; }
}
.openqcm-calc .result-block .rl {
  font-size: 0.76em;
  color: var(--text2);
  margin-bottom: 5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.openqcm-calc .result-block .rv {
  font-family: var(--mono);
  font-size: 1.25em;
  font-weight: 600;
  color: var(--text);
  transition: color 0.3s, transform 0.3s;
}
.openqcm-calc .result-block .rv.large { font-size: 1.65em; font-weight: 700; }
.openqcm-calc .result-block .rv.neg { color: var(--accent-r); }
.openqcm-calc .result-block .rv.pos { color: var(--accent-g); }
.openqcm-calc .result-block .rv.blue { color: var(--sauerbrey); }
.openqcm-calc .result-block .rv.violet { color: var(--voigt); }
.openqcm-calc .result-block .rv.gold { color: var(--accent-w); }
.openqcm-calc .result-block.flash {
  animation: oqc-resultFlash 0.6s cubic-bezier(0.16,1,0.3,1);
}
.openqcm-calc .result-block.flash .rv {
  animation: oqc-valuePopIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes oqc-resultFlash {
  0% { transform:scale(1); box-shadow:none; }
  20% { transform:scale(1.012); box-shadow: 0 0 0 1px rgba(59,158,255,0.1), 0 4px 30px rgba(59,158,255,0.08); border-color: var(--border2); }
  100% { transform:scale(1); box-shadow:none; }
}
@keyframes oqc-valuePopIn {
  0% { transform: scale(0.92); opacity: 0.5; filter: blur(2px); }
  50% { transform: scale(1.03); opacity: 1; filter: blur(0); }
  100% { transform: scale(1); }
}
.openqcm-calc .rtab-content.active .result-block:nth-child(1) { animation: oqc-resultEnter 0.4s cubic-bezier(0.16,1,0.3,1) 0.02s both; }
.openqcm-calc .rtab-content.active .result-block:nth-child(2) { animation: oqc-resultEnter 0.4s cubic-bezier(0.16,1,0.3,1) 0.08s both; }
.openqcm-calc .rtab-content.active .result-block:nth-child(3) { animation: oqc-resultEnter 0.4s cubic-bezier(0.16,1,0.3,1) 0.14s both; }
.openqcm-calc .rtab-content.active .result-block:nth-child(4) { animation: oqc-resultEnter 0.4s cubic-bezier(0.16,1,0.3,1) 0.2s both; }
@keyframes oqc-resultEnter {
  from { opacity:0; transform:translateX(-12px) scale(0.97); }
  to { opacity:1; transform:translateX(0) scale(1); }
}
.openqcm-calc .rtabs { display: flex; gap: 8px; margin-bottom: 18px; }
.openqcm-calc .rtab-btn {
  flex:1;
  padding: 11px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.82em;
  font-weight: 600;
  color: var(--text2);
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  text-align: left;
  position: relative;
  overflow: hidden;
}
.openqcm-calc .rtab-btn:hover { transform: translateY(-2px); border-color: var(--text2); }
.openqcm-calc .rtab-btn:active { transform: scale(0.96); transition-duration: 0.1s; }
.openqcm-calc .rtab-btn.active {
  border-color: var(--sauerbrey);
  color: var(--sauerbrey);
  background: rgba(59,158,255,0.05);
  box-shadow: 0 0 20px rgba(59,158,255,0.08);
  animation: oqc-tabActivate 0.45s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes oqc-tabActivate {
  0% { transform: scale(0.95); }
  60% { transform: scale(1.02); }
  100% { transform: scale(1); }
}
.openqcm-calc .rtab-content { display:none; }
.openqcm-calc .rtab-content.active { display:block; animation: oqc-fadeSlideIn 0.45s cubic-bezier(0.16,1,0.3,1); }
@keyframes oqc-fadeSlideIn {
  from { opacity:0; transform:translateY(10px) scale(0.98); }
  to { opacity:1; transform:translateY(0) scale(1); }
}
.openqcm-calc .bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 24px;
}
.openqcm-calc .constants-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.openqcm-calc .constants-card:hover {
  border-color: var(--border2);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.openqcm-calc .const-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid rgba(36,48,80,0.5);
}
.openqcm-calc .const-item:last-child { border-bottom:none; }
.openqcm-calc .const-label { font-size: 0.82em; color: var(--text2); }
.openqcm-calc .const-val { font-family: var(--mono); font-size: 0.83em; color: var(--text3); font-weight: 600; }
.openqcm-calc .formula-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}
.openqcm-calc .formula-card:hover {
  border-color: var(--border2);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.openqcm-calc .formula-title {
  font-size: 0.76em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text2);
  margin-bottom: 16px;
}
.openqcm-calc .formula-eq {
  font-family: var(--mono);
  font-size: 0.88em;
  color: var(--text3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 14px;
  text-align: center;
  line-height: 1.8;
  transition: border-color 0.3s, box-shadow 0.3s;
  position: relative;
}
.openqcm-calc .formula-eq:hover {
  border-color: var(--border2);
  box-shadow: 0 0 24px rgba(59,158,255,0.06);
}
.openqcm-calc .formula-note {
  font-size: 0.8em;
  color: var(--text2);
  line-height: 1.65;
  border-left: 2px solid var(--border2);
  padding-left: 14px;
  margin-top: 12px;
}
.openqcm-calc .formula-note strong { color: var(--text3); }
.openqcm-calc .infobox {
  font-size: 0.8em;
  line-height: 1.65;
  border-radius: 10px;
  padding: 13px 16px;
  margin-top: 14px;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}
.openqcm-calc .infobox:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.openqcm-calc .infobox.blue { background:rgba(2,134,179,0.06); border:1px solid rgba(2,134,179,0.22); color:#06627f; }
.openqcm-calc .infobox.green { background:rgba(10,143,91,0.06); border:1px solid rgba(10,143,91,0.22); color:#07734a; }
.openqcm-calc .infobox.yellow { background:rgba(245,158,11,0.1); border:1px solid rgba(245,158,11,0.3); color:#9a6308; }
.openqcm-calc .infobox.violet { background:rgba(109,91,208,0.06); border:1px solid rgba(109,91,208,0.22); color:#574bb0; }
.openqcm-calc .tip-trigger {
  cursor: help;
  border-bottom: 1px dotted var(--text2);
  transition: border-color 0.2s;
}
.openqcm-calc .tip-trigger:hover { border-color: var(--accent); }
.openqcm-calc .help-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border);
  font-size: 0.62em;
  font-weight: 700;
  color: var(--text2);
  cursor: help;
  margin-left: 6px;
  vertical-align: middle;
  position: relative;
  transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1);
  flex-shrink: 0;
}
.openqcm-calc .help-icon:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  transform: scale(1.25);
  box-shadow: 0 0 16px rgba(59,158,255,0.4);
}
.openqcm-calc .help-icon::before {
  content:'';
  position:absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s;
}
.openqcm-calc .help-icon:hover::before {
  opacity: 0.3;
  transform: scale(1);
  animation: oqc-helpRing 1s ease-out infinite;
}
@keyframes oqc-helpRing {
  0% { opacity:0.3; transform:scale(1); }
  100% { opacity:0; transform:scale(1.8); }
}
.openqcm-calc .floating-tip {
  position: fixed;
  z-index: 10000;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px) scale(0.9);
  transition: opacity 0.3s cubic-bezier(0.16,1,0.3,1), transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  filter: blur(4px);
}
.openqcm-calc .floating-tip.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
  filter: blur(0);
}
.openqcm-calc .floating-tip-inner {
  background: linear-gradient(145deg, #1a2438, #141c2e);
  border: 1px solid var(--border2);
  border-radius: 14px;
  padding: 16px 20px;
  max-width: 340px;
  min-width: 200px;
  box-shadow: 0 20px 56px rgba(0,0,0,0.55), 0 0 1px rgba(255,255,255,0.06), 0 0 40px rgba(59,158,255,0.06);
  font-size: 0.84em;
  color: var(--text3);
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0.1px;
  position: relative;
  overflow: hidden;
}
.openqcm-calc .floating-tip-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: 14px 14px 0 0;
  background: linear-gradient(90deg, var(--sauerbrey), var(--voigt));
  opacity: 0.6;
}
.openqcm-calc .floating-tip-inner::after {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.03), transparent);
  pointer-events: none;
}
.openqcm-calc .floating-tip.visible .floating-tip-inner::after {
  animation: oqc-tipShimmer 0.8s 0.2s ease forwards;
}
@keyframes oqc-tipShimmer {
  to { left: 150%; }
}
.openqcm-calc .floating-tip-inner strong { color: var(--text); font-weight: 600; }
.openqcm-calc .floating-tip-inner code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--bg);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border);
}
.openqcm-calc footer {
  text-align: center;
  padding: 24px 32px;
  border-top: 1px solid var(--border);
  font-size: 0.78em;
  color: var(--text2);
  line-height: 1.7;
  position: relative;
}
.openqcm-calc footer::before {
  content:'';
  position:absolute;
  top: -1px; left: 20%; right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border2), transparent);
}
.openqcm-calc footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.3s, text-shadow 0.3s;
}
.openqcm-calc footer a:hover {
  color: white;
  text-shadow: 0 0 12px rgba(59,158,255,0.4);
}
.openqcm-calc footer .footer-divider { margin: 0 8px; opacity: 0.4; }
.openqcm-calc .export-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: linear-gradient(135deg, rgba(59,158,255,0.12), rgba(167,139,250,0.08));
  border: 1px solid rgba(59,158,255,0.25);
  border-radius: 12px;
  color: var(--accent);
  font-family: var(--sans);
  font-size: 0.88em;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.34,1.56,0.64,1);
  margin-top: 16px;
  position: relative;
  overflow: hidden;
}
.openqcm-calc .export-btn::before {
  content:'';
  position:absolute;
  inset:0;
  background: linear-gradient(135deg, rgba(59,158,255,0.15), rgba(167,139,250,0.15));
  opacity:0;
  transition: opacity 0.3s;
}
.openqcm-calc .export-btn:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 6px 24px rgba(59,158,255,0.15);
  color: white;
}
.openqcm-calc .export-btn:hover::before { opacity:1; }
.openqcm-calc .export-btn:active { transform: scale(0.96); transition-duration: 0.1s; }
.openqcm-calc .export-btn .export-icon { font-size: 1.15em; }
.openqcm-calc .export-btn.exporting {
  pointer-events: none;
  opacity: 0.7;
}
.openqcm-calc .export-btn.exporting::after {
  content: '';
  width: 14px; height: 14px;
  border: 2px solid transparent;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: oqc-spin 0.6s linear infinite;
}
@keyframes oqc-spin { to { transform: rotate(360deg); } }
.openqcm-calc .model-illustration {
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--border);
  background: #fff;
  position: relative;
  padding: 0;
  transition: border-color 0.4s, box-shadow 0.4s;
}
.openqcm-calc .model-illustration:hover {
  border-color: var(--border2);
  box-shadow: 0 6px 24px rgba(10,10,12,0.06);
}
.openqcm-calc .model-illustration svg {
  display: block;
  width: 100%;
  height: auto;
}
@media(max-width:900px) {
.openqcm-calc .grid-2, .openqcm-calc .bottom-grid, .openqcm-calc .guide-grid { grid-template-columns:1fr; }
.openqcm-calc .guide-card.full { grid-column: 1; }
.openqcm-calc .model-nav { flex-direction:column; }
.openqcm-calc .header { flex-direction:column; text-align:center; padding: 28px 24px; }
.openqcm-calc .header h1 { font-size: 2em; }
.openqcm-calc .header-export { margin-top: 12px; }
.openqcm-calc { padding:10px 8px 30px; }
.openqcm-calc .model-panel { padding:18px; }
.openqcm-calc .guide-inner { padding:24px 20px; }
.openqcm-calc .guide-toggle { padding: 14px 20px; }
}
@media(max-width:480px) {
.openqcm-calc .header h1 { font-size: 1.5em; }
.openqcm-calc .card { padding: 18px; }
}
.openqcm-calc .inv-data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.85em;
  margin-bottom: 16px;
}
.openqcm-calc .inv-data-table th {
  background: rgba(245,158,11,0.06);
  color: var(--text2);
  font-weight: 500;
  padding: 8px 6px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  font-size: 0.82em;
  letter-spacing: 0.02em;
}
.openqcm-calc .inv-data-table td {
  padding: 4px 4px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.openqcm-calc .inv-data-table td.n-col {
  color: var(--inverse);
  font-weight: 600;
  width: 50px;
}
.openqcm-calc .inv-data-table input[type="number"] {
  width: 100%;
  max-width: 120px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 8px;
  font-family: var(--mono);
  font-size: 0.92em;
  text-align: right;
  transition: border-color 0.2s;
}
.openqcm-calc .inv-data-table input[type="number"]:focus {
  border-color: var(--inverse);
  outline: none;
}
.openqcm-calc .inv-data-table input[type="checkbox"] {
  accent-color: var(--inverse);
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.openqcm-calc .inv-btn-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.openqcm-calc .inv-fit-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--inverse);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 30px;
  font-size: 0.92em;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.25s cubic-bezier(0.2,0.7,0.2,1), box-shadow 0.25s, opacity 0.2s;
  font-family: var(--sans);
  letter-spacing: 0.01em;
  box-shadow: 0 1px 0 rgba(255,255,255,0.18) inset, 0 8px 22px -8px rgba(184,119,10,0.45);
}
.openqcm-calc .inv-fit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.18) inset, 0 14px 34px -10px rgba(184,119,10,0.50);
}
.openqcm-calc .inv-fit-btn:active { transform: translateY(0); }
.openqcm-calc .inv-fit-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.openqcm-calc .inv-status {
  font-size: 0.82em;
  color: var(--text2);
  font-family: var(--mono);
}
.openqcm-calc .inv-status.ok { color: #00d68f; }
.openqcm-calc .inv-status.warn { color: var(--inverse); }
.openqcm-calc .inv-status.err { color: #f43f5e; }
.openqcm-calc .inv-results { display: none; }
.openqcm-calc .inv-results.show { display: block; animation: oqc-panelIn 0.55s cubic-bezier(0.16,1,0.3,1); }
.openqcm-calc .inv-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}
.openqcm-calc .inv-res-card {
  background: rgba(245,158,11,0.04);
  border: 1px solid rgba(245,158,11,0.15);
  border-radius: 8px;
  padding: 12px 14px;
  text-align: center;
}
.openqcm-calc .inv-res-label {
  font-size: 0.75em;
  color: var(--text2);
  margin-bottom: 4px;
  letter-spacing: 0.03em;
}
.openqcm-calc .inv-res-value {
  font-family: var(--mono);
  font-size: 1.15em;
  font-weight: 600;
  color: var(--inverse);
}
.openqcm-calc .inv-res-value.violet { color: var(--voigt); }
.openqcm-calc .inv-res-value.green { color: #00d68f; }
.openqcm-calc .inv-res-unit {
  font-size: 0.7em;
  color: var(--text2);
  font-weight: 400;
  margin-left: 3px;
}
.openqcm-calc .inv-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.82em;
  margin-top: 12px;
}
.openqcm-calc .inv-compare-table th {
  background: rgba(245,158,11,0.06);
  color: var(--text2);
  font-weight: 500;
  padding: 7px 6px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  font-size: 0.8em;
}
.openqcm-calc .inv-compare-table td {
  padding: 6px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.openqcm-calc .inv-compare-table .fit-val { color: var(--inverse); font-weight: 500; }
.openqcm-calc .inv-compare-table .res-good { color: #00d68f; }
.openqcm-calc .inv-compare-table .res-ok { color: var(--inverse); }
.openqcm-calc .inv-compare-table .res-bad { color: #f43f5e; }
.openqcm-calc .inv-note {
  font-size: 0.78em;
  color: var(--text2);
  line-height: 1.5;
  margin-top: 12px;
  padding: 10px 12px;
  background: rgba(245,158,11,0.04);
  border-radius: 6px;
  border-left: 3px solid var(--inverse);
}
.openqcm-calc, .openqcm-calc { padding: 0; margin: 0; }
.openqcm-calc iframe { width: 100%; height: 100%; border: 0;}
.openqcm-calc, .openqcm-calc { padding: 0; margin: 0; }
.openqcm-calc iframe { width: 100%; height: 100%; border: 0;}
.openqcm-calc, .openqcm-calc { padding: 0; margin: 0; }
.openqcm-calc iframe { width: 100%; height: 100%; border: 0;}
.openqcm-calc div.grammarly-desktop-integration {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
        -moz-user-select: none;
        -webkit-user-select: none;
        -ms-user-select:none;
        user-select:none;
      }
.openqcm-calc div.grammarly-desktop-integration:before {
        content: attr(data-content);
      }

/* ─────────────────────────────────────────────────────────────
   openqcm-2026 light-theme overrides (new template look)
   ───────────────────────────────────────────────────────────── */
.openqcm-calc {
  background: transparent;
  color: var(--text);
  min-height: 0;
  padding: 0;
  overflow: visible;
  max-width: 1200px;
  margin: 0 auto;
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
.openqcm-calc::before { display: none !important; }

/* dark tooltip popup -> light card */
.openqcm-calc .floating-tip-inner {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--line-2, rgba(10,10,12,0.16));
  box-shadow: 0 20px 56px rgba(10,10,12,0.16), 0 2px 6px rgba(10,10,12,0.08);
}
.openqcm-calc .floating-tip-inner * { color: inherit; }

/* 2026-10-04: a readable measure for the explanations (was up to 156 characters per line). */
.openqcm-calc .guide-card p, .openqcm-calc .guide-card li { max-width: 64ch; }