:root{
  --bg-deep:#0b1020;--bg-indigo:#121a33;--text:#e7ecff;--muted:#aab5e1;--accent:#5c7cfa;
  --glass:rgba(255,255,255,0.08);--glass-border:rgba(255,255,255,0.15);
  --radius:16px;--shadow:0 12px 30px rgba(0,0,0,.45);
}
*{box-sizing:border-box;margin:0;padding:0}
body {
  font-family: Inter, system-ui, sans-serif;
  background: radial-gradient(1000px 700px at 20% 18%,rgba(92,124,250,.18),transparent 60%),radial-gradient(900px 600px at 80% 10%,rgba(92,124,250,.10),transparent 60%),linear-gradient(180deg,var(--bg-indigo),var(--bg-deep) 55%);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-size: 1.08em;
}
.hidden { display: none !important; }
#detailedSection { margin-top: 8px; padding: 12px 10px 8px 10px; background: var(--glass); border-radius: 10px; border: 1px solid var(--glass-border); box-shadow: 0 1px 6px rgba(92,124,250,0.06); }
.history-box {
  background: none !important;
  border-radius: 0;
  padding: 0;
  font-size: 1.08em;
  margin-bottom: 8px;
  box-shadow: none;
}
#historyList {
  font-size: 1.07em;
  padding: 0;
  margin: 0;
  list-style: none;
}
.history-item {
  background: none !important;
  border-radius: 14px;
  margin-bottom: 14px;
  padding: 14px 0 12px 0;
  box-shadow: none !important;
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 1.07em;
  border: none !important;
  transition: none;
  position: relative;
}
:root[data-theme='light'] .history-item,
:root[data-theme='dark'] .history-item {
  background: none !important;
  color: inherit;
  border: none !important;
}
.history-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  justify-content: flex-start;
}
.history-label {
  color: var(--muted);
  font-size: 1.01em;
  min-width: 120px;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.history-value {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.11em;
  margin-left: 4px;
  letter-spacing: 0.01em;
}
.history-time {
  color: var(--muted);
  font-size: 0.97em;
  min-width: 90px;
}
.history-cable, .history-lug, .history-std {
  font-size: 1em;
  color: var(--text);
}
.history-empty {
  color: var(--muted);
  text-align: center;
  padding: 16px 0 10px 0;
  font-size: 1.05em;
}
select { font-size: 1em; border: 1.5px solid var(--accent); background: var(--glass); color: var(--text); border-radius: 8px; padding: 6px 12px; }
select:focus { outline: 2px solid var(--accent); }
input[type="checkbox"] { accent-color: var(--accent); }
#feedbackBtn { background: linear-gradient(90deg,#5c7cfa,#4e68f0); color: #fff; font-size: 1em; margin-top: 10px; }
#feedbackBtn:hover { background: linear-gradient(90deg,#4e68f0,#5c7cfa); }
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 2px 16px rgba(92,124,250,0.08);
  z-index: 10;
}
.header-inner {
  max-width: 960px;
  margin: auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-start;
}
.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg,rgba(92,124,250,.28),rgba(92,124,250,.06));
  box-shadow: 0 2px 8px rgba(92,124,250,0.10);
}
.title {
  font-weight: 700;
  font-size: clamp(20px,4vw,30px);
  letter-spacing: 0.01em;
}
main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 24px 8px 32px 8px;
}
.card {
  width: 100%;
  max-width: 420px;
  background: var(--glass);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px) saturate(160%);
  box-shadow: var(--shadow);
  padding: 28px 18px 22px 18px;
  margin: 24px auto 0 auto;
  transition: all .3s ease;
}
h2 {
  text-align: center;
  color: var(--accent);
  margin-bottom: 10px;
  font-size: 1.25em;
}
.lead {
  text-align: center;
  color: var(--muted);
  margin-bottom: 10px;
}
label {
  display: block;
  margin-top: 13px;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0.01em;
  margin-bottom: 2px;
}
.input-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 0;
  margin-bottom: 2px;
}
.input-icon {
  font-size: 1.2em;
  color: var(--accent);
  margin-right: 4px;
}
input {
  width: 100%;
  padding: 11px 12px;
  margin-top: 0;
  margin-bottom: 0;
  background: rgba(255,255,255,.07);
  border: 1.5px solid rgba(255,255,255,.22);
  border-radius: 12px;
  color: var(--text);
  font-size: 1.04em;
  transition: border .2s;
  box-shadow: 0 1px 4px rgba(92,124,250,0.06);
}
input:focus {
  border-color: var(--accent);
  outline: none;
  background: rgba(92,124,250,0.08);
}
button {
  margin-top: 18px;
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg,#4e68f0,#5c7cfa);
  color: #fff;
  font-weight: 700;
  font-size: 1.08em;
  cursor: pointer;
  transition: .3s;
  box-shadow: 0 2px 8px rgba(92,124,250,0.10);
  letter-spacing: 0.01em;
}
button:hover {
  opacity: .97;
  background: linear-gradient(90deg,#5c7cfa,#4e68f0);
}
.toggle-btn {
  background: rgba(92,124,250,.12);
  border: 1.5px solid rgba(92,124,250,.2);
  color: var(--accent);
  margin-bottom: 8px;
}
.result {
  margin-top: 20px;
  text-align: center;
  line-height: 1.7;
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 12px;
}
.result b {
  color: var(--accent);
}
.pill {
  display: inline-block;
  padding: 7px 13px;
  border-radius: 999px;
  margin-top: 8px;
  font-size: .97rem;
}
.ok {
  background: rgba(56,211,159,.18);
  border: 1px solid rgba(56,211,159,.4);
}
.warn {
  background: rgba(255,209,102,.15);
  border: 1px solid rgba(255,209,102,.4);
}
.danger {
  background: rgba(255,102,102,.15);
  border: 1px solid rgba(255,102,102,.4);
}
.coil-title {
  margin-top: 20px;
  color: var(--accent);
  text-align: center;
}
.coil-desc {
  color: var(--muted);
  text-align: center;
  font-size: .93rem;
}
.eq-body {
  margin-top: 10px;
  line-height: 1.6;
  color: var(--muted);
}
.site-footer {
  text-align: center;
  padding: 16px;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,.06);
  font-size: 1em;
}
.filler-card {
  background: rgba(92,124,250,0.10);
  border: 1.5px solid var(--accent);
  border-radius: 13px;
  margin: 18px auto 0 auto;
  max-width: 320px;
  box-shadow: 0 2px 12px rgba(92,124,250,0.08);
  padding: 14px 14px 10px 14px;
  text-align: center;
}
.filler-title {
  font-weight: 700;
  color: var(--accent);
  font-size: 1.13em;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 7px;
  justify-content: center;
}
.filler-delta {
  font-size: 1.08em;
  margin-bottom: 10px;
  color: #fff;
}
.filler-combo-title {
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
  margin-top: 8px;
}
.filler-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0 0;
}
.filler-list li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 1.04em;
  padding: 3px 0;
}
.filler-count {
  font-weight: 700;
  color: var(--accent);
  min-width: 2.5em;
  display: inline-block;
}
.filler-type {
  font-family: monospace;
  background: rgba(92,124,250,0.13);
  border-radius: 7px;
  padding: 2px 8px;
  color: #e7ecff;
}
.theme-toggle {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 100;
  background: var(--glass);
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(92,124,250,0.18);
  cursor: pointer;
  transition: background .2s, border .2s, box-shadow .2s;
  font-size: 1.7em;
  color: var(--accent);
}
.theme-toggle:hover {
  background: var(--accent);
  color: #fff;
  border-color: #fff;
}
.info-icon {
  display: inline-block;
  margin-left: 6px;
  font-size: 1em;
  color: var(--accent);
  cursor: pointer;
  vertical-align: middle;
  position: relative;
}
.info-icon:hover::after, .info-icon:focus::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  top: 120%;
  transform: translateX(-50%);
  background: var(--bg-indigo);
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.98em;
  white-space: pre-line;
  z-index: 100;
  min-width: 180px;
  box-shadow: 0 2px 12px rgba(92,124,250,0.13);
}
.info-icon:focus {
  outline: 2px solid var(--accent);
}
.lang-toggle {
  margin-left: 12px;
  background: var(--glass);
  border: 1.5px solid var(--accent);
  border-radius: 8px;
  padding: 7px 13px;
  font-size: 1.13em;
  color: var(--accent);
  cursor: pointer;
  transition: background .2s, border .2s, color .2s;
  box-shadow: 0 2px 8px rgba(92,124,250,0.10);
}
.lang-toggle:hover {
  background: var(--accent);
  color: #fff;
  border-color: #fff;
}
.export-btn {
  margin: 18px auto 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 1.08em;
  font-weight: 600;
  padding: 12px 22px;
  box-shadow: 0 2px 8px rgba(92,124,250,0.10);
  cursor: pointer;
  transition: background .2s, color .2s;
}
.export-btn:hover {
  background: #4e68f0;
  color: #fff;
}
.input-example {
  color: var(--muted);
  font-size: 0.97em;
  margin-bottom: 2px;
  margin-top: 0px;
  margin-left: 2px;
}
svg[width="60"] {
  display: block;
  margin: 0 auto 2px auto;
}
input, button, .tile, .card, .export-btn, .theme-toggle, .lang-toggle {
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(92,124,250,0.18);
}
input:focus, button:focus, .tile:focus, .export-btn:focus, .theme-toggle:focus, .lang-toggle:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
@media (min-width:900px){.card{padding:32px}}
@media (max-width: 700px) {
  input, button, .export-btn {
    font-size: 1.13em;
    min-height: 48px;
  }
  .tile {
    min-height: 90px;
    font-size: 1.08em;
  }
}
@media (max-width: 480px) {
  input, button, .export-btn {
    font-size: 1.18em;
    min-height: 54px;
    border-radius: 10px;
  }
  .tile {
    min-height: 70px;
    font-size: 1.04em;
    border-radius: 10px;
  }
}
/* Animációk */
button, .export-btn, .theme-toggle, .lang-toggle {
  transition: background .2s, color .2s, box-shadow .2s, transform .15s;
}
button:active, .export-btn:active, .theme-toggle:active, .lang-toggle:active {
  transform: scale(0.97);
  box-shadow: 0 1px 4px rgba(92,124,250,0.10);
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
.result, .filler-card {
  animation: fadeIn 0.5s cubic-bezier(.4,1.4,.6,1) both;
}
.tile:hover {
  box-shadow: 0 6px 32px rgba(92,124,250,0.18);
  transform: translateY(-4px) scale(1.04);
  background: linear-gradient(120deg,rgba(92,124,250,0.13),rgba(255,255,255,0.03));
}
.info-icon {
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.7); }
}
button:hover, .export-btn:hover, .theme-toggle:hover, .lang-toggle:hover {
  box-shadow: 0 4px 24px rgba(92,124,250,0.22);
  filter: brightness(1.08);
}
:root[data-theme='light'] {
  --bg-deep: #f7f8fa;
  --bg-indigo: #eaf0ff;
  --text: #1a2340;
  --muted: #5c7cfa;
  --accent: #4e68f0;
  --glass: rgba(92,124,250,0.04);
  --glass-border: rgba(92,124,250,0.13);
  --shadow: 0 8px 32px rgba(92,124,250,0.10);
}
body[data-theme='light'], :root[data-theme='light'] body {
  background: linear-gradient(180deg, #eaf0ff 0%, #f7f8fa 80%);
}
.card[data-theme='light'], :root[data-theme='light'] .card {
  background: #fff;
  border: 1.5px solid #e0e6f6;
  box-shadow: 0 4px 24px rgba(92,124,250,0.08);
}
input[data-theme='light'], :root[data-theme='light'] input {
  background: #f4f7ff;
  border: 1.5px solid #b6c6e6;
  color: #1a2340;
}
input[data-theme='light']:focus, :root[data-theme='light'] input:focus {
  border-color: #4e68f0;
  background: #eaf0ff;
}
button[data-theme='light'], :root[data-theme='light'] button,
.export-btn[data-theme='light'], :root[data-theme='light'] .export-btn {
  background: linear-gradient(90deg,#4e68f0,#5c7cfa);
  color: #fff;
  box-shadow: 0 2px 8px rgba(92,124,250,0.10);
}
button[data-theme='light']:hover, :root[data-theme='light'] button:hover,
.export-btn[data-theme='light']:hover, :root[data-theme='light'] .export-btn:hover {
  background: linear-gradient(90deg,#5c7cfa,#4e68f0);
}
.pill[data-theme='light'], :root[data-theme='light'] .pill {
  background: #eaf0ff;
  color: #4e68f0;
  border: 1px solid #b6c6e6;
}
#feedbackForm {
  background: var(--glass);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(92,124,250,0.08);
  margin-bottom: 18px;
}
#feedbackMsg {
  border: 1.5px solid var(--accent);
  border-radius: 8px;
  font-size: 1em;
  background: #fff2;
  color: var(--text);
  resize: vertical;
}
#feedbackBtn {
  margin-top: 0;
  width: auto;
  min-width: 120px;
  padding: 10px 18px;
}
#feedbackStatus {
  min-height: 18px;
  color: var(--accent);
}
#historyDetails {
  margin-top: 18px;
  background: var(--glass);
  border-radius: 10px;
  box-shadow: 0 1px 6px rgba(92,124,250,0.06);
  padding: 0 0 0 0;
}
#historyDetails[open] {
  box-shadow: 0 2px 12px rgba(92,124,250,0.10);
}
.history-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 10px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(92,124,250,0.07);
}
.history-tab-btn {
  flex: 1 1 0;
  background: none;
  border: none;
  padding: 10px 0;
  font-size: 1.01em;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: background .18s, color .18s;
  border-bottom: 2.5px solid transparent;
  outline: none;
}
.history-tab-btn.active {
  background: var(--glass);
  color: var(--accent);
  border-bottom: 2.5px solid var(--accent);
  z-index: 1;
}
.history-tab-content {
  display: none;
  animation: fadeIn .22s cubic-bezier(.4,1.4,.6,1) both;
}
.history-tab-content.active {
  display: block;
}
.history-result-html .calc-block, .history-result-html .filler-card, .history-result-html .pill {
  margin-bottom: 8px;
}
.icon-menu {
  display: flex !important;
  align-items: center !important;
  gap: 0 !important;
  margin-left: auto !important;
}
.home-link.icon-btn {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 44px !important;
  width: 44px !important;
  background: none !important;
  border: none !important;
  margin: 0 !important;
  padding: 0 !important;
  box-shadow: 0 2px 8px rgba(92,124,250,0.10);
  filter: brightness(1);
  cursor: pointer;
}
.home-link.icon-btn:hover, .home-link.icon-btn:focus {
  background: rgba(92,124,250,0.13) !important;
  box-shadow: 0 4px 18px rgba(92,124,250,0.18) !important;
  filter: brightness(1.13) !important;
}
#feedbackModal, .icon-btn, #feedbackFormModal, #closeFeedbackModal, .feedback-modal-content {
  display: none !important;
}
.calc-counter-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin: 18px auto 10px auto;
  font-size: 1.01em;
  color: var(--muted);
  opacity: 0.75;
  background: none;
  border-radius: 8px;
  user-select: none;
}
.calc-counter-icon {
  font-size: 1.18em;
  color: var(--accent);
}
.calc-counter {
  font-weight: 700;
  color: var(--accent);
  font-size: 1.08em;
  margin: 0 2px;
}
.calc-counter-label {
  font-size: 0.98em;
  color: var(--muted);
}
.clear-history-btn {
  background: none;
  border: none;
  font-size: 1.18em;
  cursor: pointer;
  color: var(--muted);
  transition: color 0.18s;
  padding: 0 4px;
  border-radius: 6px;
}
.clear-history-btn:hover {
  color: #d32f2f;
  background: rgba(211,47,47,0.08);
}