/* ====================================================================
   INHERITED DESIGN SYSTEM
   ==================================================================== */
:root {
  --ink: #0A1420;
  --schematic: #0B2A4A;
  --wire: #1E4D8C;
  --hoeller: #1E4D8C;
  --cyan: #22D3EE;
  --cyan-glow: #67E8F9;
  --cyan-deep: #0E7490;
  --paper: #EEF2F7;
  --paper-2: #E4EAF2;
  --paper-warm: #F6F8FB;
  --steel: #5B6B7E;
  --steel-light: #8FA0B4;
  --grid: rgba(11, 42, 74, 0.06);
  --grid-major: rgba(11, 42, 74, 0.12);
  --hairline: rgba(11, 42, 74, 0.10);
  --hair-strong: rgba(11, 42, 74, 0.20);
  --cyan-trace: rgba(34, 211, 238, 0.35);
  --font-display: 'Archivo', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;
  --gutter: clamp(20px, 4vw, 56px);
  --max: 1440px;
  --ease-snap: cubic-bezier(0.7, 0, 0.3, 1);
  --ease-instr: cubic-bezier(0.16, 1, 0.3, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { display: block; max-width: 100%; }
::selection { background: var(--cyan); color: var(--ink); }

.grid-bg {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 8px 8px;
}
.grid-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-major) 1px, transparent 1px);
  background-size: 64px 64px;
}

.utility, .header, .product-page, .footer, .product-related { position: relative; z-index: 2; }

/* ====================================================================
   UTILITY + HEADER (inherited)
   ==================================================================== */
.utility {
  background: var(--ink); color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.06em;
  border-bottom: 1px solid rgba(34, 211, 238, 0.15);
}
.utility-inner {
  max-width: var(--max); margin: 0 auto;
  padding: 9px var(--gutter);
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px;
}
.utility-left { display: flex; gap: 24px; align-items: center; flex-wrap: wrap; }
.utility-left a { display: inline-flex; align-items: center; gap: 8px; opacity: 0.8; transition: color 0.2s, opacity 0.2s; }
.utility-left a:hover { opacity: 1; color: var(--cyan); }
.utility-left svg { width: 12px; height: 12px; }
.utility-right { display: flex; gap: 18px; align-items: center; }
.lang-switch { display: flex; gap: 0; border: 1px solid rgba(255,255,255,0.12); }
.lang-switch button {
  padding: 4px 10px; color: var(--steel-light); font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 0.12em; transition: all 0.18s;
}
.lang-switch button.active { background: var(--cyan); color: var(--ink); font-weight: 600; }
.lang-switch button:hover:not(.active) { color: var(--paper); background: rgba(34,211,238,0.08); }
.utility .status-pill { display: inline-flex; align-items: center; gap: 7px; color: var(--steel-light); }
.utility .status-pill .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.header {
  background: rgba(238, 242, 247, 0.92);
  border-bottom: 1px solid var(--hairline);
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(10px);
}
.header-inner {
  max-width: var(--max); margin: 0 auto;
  padding: 18px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 24px;
}
.logo { display: flex; align-items: stretch; gap: 0; height: 36px; color: var(--hoeller); }
.logo-mark {
  width: 36px; height: 36px;
  background: var(--hoeller);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo-mark svg { width: 70%; height: 70%; }
.logo-wordmark {
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 12px;
  border-top: 2px solid var(--hoeller);
  border-bottom: 2px solid var(--hoeller);
  font-weight: 700; font-size: 11px; line-height: 1;
  letter-spacing: 0.04em; color: var(--hoeller);
}
.logo-wordmark span:first-child { margin-bottom: 3px; }
.logo-suffix {
  font-family: var(--font-mono); font-size: 9px; color: var(--steel);
  letter-spacing: 0.18em; text-transform: uppercase;
  border-left: 1px solid var(--hair-strong);
  padding-left: 12px; margin-left: 12px;
  align-self: center;
}
.csearch { position: relative; max-width: 480px; width: 100%; justify-self: center; }
.csearch-frame {
  display: flex; align-items: center; background: white;
  border: 1px solid var(--hair-strong);
  padding: 0 14px; height: 42px;
  position: relative;
}
.csearch-frame::before, .csearch-frame::after {
  content: ""; position: absolute; width: 6px; height: 6px;
  border: 1px solid var(--hair-strong);
}
.csearch-frame::before { top: -3px; left: -3px; border-right: none; border-bottom: none; }
.csearch-frame::after { bottom: -3px; right: -3px; border-left: none; border-top: none; }
.csearch-frame:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px var(--cyan), 0 0 12px rgba(34,211,238,0.18);
}
.csearch-prefix {
  font-family: var(--font-mono); font-size: 10px; color: var(--cyan-deep);
  letter-spacing: 0.15em; margin-right: 12px;
  border-right: 1px solid var(--hair-strong);
  padding-right: 12px; user-select: none; font-weight: 500;
}
.csearch-input {
  flex: 1; border: none; background: none; outline: none;
  font-family: var(--font-mono); font-size: 13px;
  color: var(--ink); letter-spacing: 0.02em;
}
.csearch-input::placeholder { color: var(--steel-light); }
.nav { display: flex; gap: 4px; align-items: center; }
.nav-link {
  font-size: 13px; font-weight: 500; letter-spacing: 0.01em;
  padding: 9px 14px; transition: color 0.15s, background 0.15s;
}
.nav-link:hover, .nav-link.active { color: var(--wire); }
.nav-link.active { font-weight: 600; }
.cart-btn {
  background: var(--ink); color: var(--paper);
  padding: 11px 16px;
  font-size: 13px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 8px;
  transition: background 0.18s, color 0.18s;
  border: 1px solid var(--ink);
  font-family: var(--font-body);
  position: relative;
}
.cart-btn:hover { background: var(--cyan); color: var(--ink); border-color: var(--cyan); }
.cart-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.cart-count {
  background: var(--cyan); color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 600;
  padding: 2px 7px;
  margin-left: 4px;
  letter-spacing: 0;
  min-width: 22px; text-align: center;
}
.cart-count.hidden { display: none; }
.cart-btn:hover .cart-count { background: var(--ink); color: var(--cyan); }
.menu-toggle { display: none; }

/* ====================================================================
   PRODUCT PAGE
   ==================================================================== */
.product-page {
  padding: 0 var(--gutter);
}
.product-page-inner {
  max-width: var(--max);
  margin: 0 auto;
}

/* Breadcrumb (same style as category page) */
.breadcrumb {
  display: flex; align-items: center; gap: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
  padding: 24px 0 18px;
}
.breadcrumb a, .breadcrumb span { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--steel); transition: color 0.15s; padding: 4px 0; }
.breadcrumb a:hover { color: var(--cyan-deep); }
.breadcrumb .node { width: 7px; height: 7px; border-radius: 50%; border: 1px solid var(--cyan); background: var(--paper); }
.breadcrumb .node.filled { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.breadcrumb .trace { width: 28px; height: 1px; background: var(--cyan-trace); margin: 0 6px; }
.breadcrumb .current { color: var(--ink); font-weight: 500; font-family: var(--font-mono); }

/* ====================================================================
   PRODUCT HERO — restructured: identity full-width on top,
   then drawing | configurator below
   ==================================================================== */

/* Top block: identity + quick specs (full width) */
.product-identity {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 28px;
}

.product-h1 {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.1;
  font-weight: 300;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 0;
}
.product-h1 em { color: var(--wire); font-weight: 500; font-style: normal; }

/* Quick spec strip — full-width below hero, datasheet key-data summary */
.quick-specs-block {
  padding: 56px 0 0;
  margin-bottom: 0;
}
.quick-specs-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
  font-weight: 500;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.quick-specs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 0;
  border: 1px solid var(--hair-strong);
  border-bottom: none;
  background: var(--paper-warm);
}
.qspec {
  padding: 14px 18px;
  border-right: 1px solid var(--hairline);
}
.qspec:last-child { border-right: none; }
.qspec-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--steel);
  text-transform: uppercase;
  margin-bottom: 6px;
  font-weight: 500;
}
.qspec-value {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1;
}
.qspec-value.smaller { font-size: 18px; }
.qspec-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan-deep);
  margin-left: 4px;
  font-weight: 500;
}

/* Hero: drawing + configurator, side by side, both compact */
.product-hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: stretch;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hair-strong);
}

/* Left: Drawing panel */
.drawing-panel {
  background: var(--paper-warm);
  border: 1px solid var(--hair-strong);
  padding: 0;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.drawing-panel::before, .drawing-panel::after,
.drawing-panel-bl, .drawing-panel-br {
  content: "";
  position: absolute;
  width: 8px; height: 8px;
  background: var(--cyan);
}
.drawing-panel::before { top: -1px; left: -1px; }
.drawing-panel::after { top: -1px; right: -1px; }
.drawing-panel-bl { bottom: -1px; left: -1px; }
.drawing-panel-br { bottom: -1px; right: -1px; }

.drawing-tabs {
  display: flex;
  border-bottom: 1px solid var(--hair-strong);
  background: var(--paper);
}
.drawing-tab {
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--steel);
  border-right: 1px solid var(--hairline);
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 500;
  text-transform: uppercase;
}
.drawing-tab:hover { color: var(--ink); background: var(--paper-warm); }
.drawing-tab.active {
  color: var(--ink);
  background: var(--paper-warm);
  position: relative;
}
.drawing-tab.active::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 12px; right: 12px;
  height: 2px;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
}

.drawing-corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--steel);
  z-index: 2;
}
.drawing-corner.tl { top: 56px; left: 18px; }
.drawing-corner.tr { top: 56px; right: 18px; }
.drawing-corner.bl { bottom: 18px; left: 18px; }
.drawing-corner.br { bottom: 18px; right: 18px; color: var(--cyan-deep); font-weight: 500; }

.drawing-area {
  position: relative;
  padding: 48px 28px 40px;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.drawing-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
}
.drawing-svg .body { fill: var(--paper); stroke: var(--ink); stroke-width: 1.2; }
.drawing-svg .fin { stroke: var(--ink); stroke-width: 0.8; fill: none; }
.drawing-svg .dim-line { stroke: var(--cyan-deep); stroke-width: 0.8; fill: none; transition: stroke 0.2s, stroke-width 0.2s, filter 0.2s; }
.drawing-svg .dim-text {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--cyan-deep);
  letter-spacing: 0.04em;
  font-weight: 500;
  transition: fill 0.2s, font-size 0.2s;
}
.drawing-svg .dim-tick { stroke: var(--cyan-deep); stroke-width: 0.8; transition: stroke 0.2s; }
.drawing-svg .dim-group:hover .dim-line,
.drawing-svg .dim-group.active .dim-line {
  stroke: var(--cyan);
  stroke-width: 1.4;
  filter: drop-shadow(0 0 3px var(--cyan));
}
.drawing-svg .dim-group:hover .dim-tick,
.drawing-svg .dim-group.active .dim-tick {
  stroke: var(--cyan);
  stroke-width: 1.4;
}
.drawing-svg .dim-group:hover .dim-text,
.drawing-svg .dim-group.active .dim-text {
  fill: var(--ink);
  font-weight: 600;
}
.drawing-svg .dim-group { cursor: pointer; }

.drawing-photo-area {
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  min-height: 380px;
  flex-direction: column;
  gap: 16px;
}
.drawing-photo-area.active { display: flex; }
.drawing-photo {
  width: 100%;
  max-width: 400px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.drawing-photo::before { content: none; }
.drawing-photo svg {
  width: 60%;
  height: 60%;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,0.4));
}
.drawing-photo-note {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.1em;
  text-align: center;
}

/* Right: configurator panel */
.product-id {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Configurator */
.configurator {
  background: white;
  border: 1px solid var(--hair-strong);
  padding: 22px;
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.configurator::before, .configurator::after,
.configurator-bl, .configurator-br {
  content: "";
  position: absolute;
  width: 6px; height: 6px;
  background: var(--cyan);
}
.configurator::before { top: -3px; left: -3px; }
.configurator::after { top: -3px; right: -3px; }
.configurator-bl { bottom: -3px; left: -3px; }
.configurator-br { bottom: -3px; right: -3px; }

.config-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
}

.config-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
  font-weight: 500;
  text-transform: uppercase;
  margin-bottom: 0;
}

.config-cikk {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.04em;
  padding: 5px 9px;
  background: var(--paper);
  border: 1px solid var(--hair-strong);
  border-left: 2px solid var(--cyan);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}
.config-cikk:hover {
  border-color: var(--cyan);
  background: white;
}
.config-cikk .copy-icon {
  width: 12px;
  height: 12px;
  color: var(--steel);
  transition: color 0.15s;
  flex-shrink: 0;
}
.config-cikk:hover .copy-icon { color: var(--cyan-deep); }
.config-cikk .copy-feedback {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--cyan-deep);
  display: none;
}
.config-cikk.copied .config-cikk-text,
.config-cikk.copied .copy-icon { display: none; }
.config-cikk.copied .copy-feedback { display: inline; }

.config-desc {
  font-size: 13px;
  color: var(--schematic);
  line-height: 1.55;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--hair-strong);
}

.config-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}
.config-field { display: flex; flex-direction: column; gap: 6px; }
.config-field-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--schematic);
  text-transform: uppercase;
  font-weight: 500;
}
.config-field-input {
  display: flex; align-items: center;
  background: var(--paper);
  border: 1px solid var(--hair-strong);
  height: 38px;
  transition: border-color 0.15s;
}
.config-field-input:focus-within { border-color: var(--cyan); }
.config-field-input button {
  width: 28px; height: 36px;
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: color 0.15s;
}
.config-field-input button:hover { color: var(--cyan-deep); }
.config-field-input input {
  flex: 1; width: 100%;
  border: none; outline: none; background: none;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  -moz-appearance: textfield;
}
.config-field-input input::-webkit-outer-spin-button,
.config-field-input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.config-field-input .unit {
  padding: 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
  letter-spacing: 0.06em;
  border-left: 1px solid var(--hairline);
  height: 100%;
  display: flex; align-items: center;
}

/* Surface treatment select */
.config-select {
  width: 100%;
  padding: 0 14px;
  height: 38px;
  background: var(--paper);
  border: 1px solid var(--hair-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.15s;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235B6B7E' stroke-width='1.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 12px;
  padding-right: 32px;
}
.config-select:focus { border-color: var(--cyan); outline: none; }

.config-note {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.04em;
  line-height: 1.5;
  padding: 8px 10px;
  background: var(--paper);
  border-left: 2px solid var(--cyan);
  margin-bottom: 16px;
}

/* Stock + add button */
.config-status {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0 18px;
  border-top: 1px dashed var(--hair-strong);
  margin-top: 4px;
}
.config-stock {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.config-stock .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}
.config-stock-yes { color: var(--cyan-deep); }
.config-eta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.06em;
}

.btn-add-quote {
  width: 100%;
  background: var(--ink);
  color: var(--paper);
  padding: 16px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  transition: background 0.18s, color 0.18s;
  border: 1px solid var(--ink);
}
.btn-add-quote:hover { background: var(--cyan); color: var(--ink); border-color: var(--cyan); }
.btn-add-quote.added { background: var(--cyan-deep); color: var(--cyan); border-color: var(--cyan-deep); }
.btn-add-quote.added::before { content: "✓ "; }
.btn-add-quote .arrow { transition: transform 0.2s; }
.btn-add-quote:hover .arrow { transform: translateX(4px); }

.btn-secondary-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}
.btn-secondary {
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--schematic);
  background: var(--paper);
  border: 1px solid var(--hair-strong);
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: all 0.15s;
  font-weight: 500;
}
.btn-secondary:hover { border-color: var(--cyan); color: var(--cyan-deep); background: white; }
.btn-secondary svg { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 1.6; }

/* ====================================================================
   SPEC TABLE — full datasheet
   ==================================================================== */
.product-body {
  padding: 24px 0;
}

.product-content { min-width: 0; }

.section-title-block {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 32px 0 12px;
  margin-top: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--hair-strong);
}
.section-title-num {
  display: none;
}
.section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--cyan-deep);
  text-transform: uppercase;
}
.section-title em {
  font-style: normal;
  color: var(--cyan-deep);
}

/* Collapsible spec table — sits inside KULCSADATOK */
.spec-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  background: var(--paper-warm);
  border-left: 1px solid var(--hair-strong);
  border-right: 1px solid var(--hair-strong);
  border-bottom: 1px solid var(--hair-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--schematic);
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 500;
  text-transform: uppercase;
}
.spec-toggle:hover { color: var(--ink); background: white; }
.spec-toggle .count {
  color: var(--steel);
  font-weight: 400;
}
.spec-toggle .chevron {
  width: 14px; height: 14px;
  color: var(--cyan-deep);
  transition: transform 0.3s var(--ease-instr);
}
.spec-toggle.open .chevron { transform: rotate(180deg); }

.spec-table-wrap {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--ease-instr);
}
.spec-table-wrap.open { max-height: 1400px; }
.spec-table-wrap .spec-table {
  border-top: none;
  border-left: 1px solid var(--hair-strong);
  border-right: 1px solid var(--hair-strong);
  border-bottom: 1px solid var(--hair-strong);
}

/* Spec table */
.spec-table {
  display: grid;
  grid-template-columns: 240px 1fr;
  font-family: var(--font-mono);
  font-size: 13px;
  background: white;
}
.spec-table .lbl,
.spec-table .val {
  padding: 11px 16px;
  border-bottom: 1px solid var(--hairline);
  transition: background 0.15s;
}
.spec-table .lbl {
  color: var(--steel);
  letter-spacing: 0.04em;
  font-size: 11px;
  text-transform: uppercase;
  font-weight: 500;
  background: var(--paper-warm);
  border-right: 1px solid var(--hairline);
}
.spec-table .val {
  color: var(--ink);
  font-weight: 500;
  background: white;
}
.spec-table .val.highlight {
  color: var(--wire);
  font-weight: 600;
}
.spec-row {
  display: contents;
}
.spec-row.hovered .lbl,
.spec-row.hovered .val {
  background: rgba(34,211,238,0.10);
}
.spec-row.dim-link {
  cursor: pointer;
}
.spec-row.dim-link .lbl::before {
  content: "◇";
  color: var(--cyan-deep);
  margin-right: 6px;
  font-size: 10px;
}
/* Last row: no bottom border */
.spec-table .spec-row:last-child .lbl,
.spec-table .spec-row:last-child .val {
  border-bottom: none;
}

/* Collapse row at the bottom of the spec table */
.spec-collapse-row {
  display: flex;
  justify-content: flex-end;
  background: var(--paper-warm);
  border-top: 1px solid var(--hairline);
  padding: 10px 14px;
}
.spec-collapse {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--steel);
  font-weight: 500;
  padding: 6px 10px;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.spec-collapse:hover {
  color: var(--cyan-deep);
  background: white;
}
.spec-collapse svg {
  width: 12px;
  height: 12px;
}

/* Documentation strip */
.docs-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--hair-strong);
  margin-top: 24px;
}
.doc-item {
  padding: 18px 20px;
  border-right: 1px solid var(--hairline);
  cursor: pointer;
  transition: background 0.15s;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.doc-item:last-child { border-right: none; }
.doc-item:hover { background: white; }
.doc-item:hover .doc-arrow { color: var(--cyan); transform: translate(2px, -2px); }
.doc-icon {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: var(--paper-2);
  color: var(--schematic);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.doc-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}
.doc-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.04em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.doc-arrow {
  color: var(--steel);
  transition: color 0.2s, transform 0.2s;
}

/* Thermal performance chart */
.chart-block {
  margin-top: 0;
}

/* Chart controls — header strip of the chart panel (dark, integrated) */
.chart-controls {
  background: var(--ink);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
  padding: 14px 26px;
  border-bottom: 1px solid rgba(34, 211, 238, 0.15);
  position: relative;
}
.chart-controls::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(34,211,238,0.025) 0 1px, transparent 1px 3px);
  pointer-events: none;
}
.chart-control-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.chart-control-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--steel-light);
  font-weight: 500;
  text-transform: uppercase;
}
.chart-pills { display: flex; gap: 4px; }
.chart-pill {
  padding: 6px 11px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(34, 211, 238, 0.18);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--steel-light);
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 500;
}
.chart-pill:hover {
  border-color: var(--cyan);
  color: var(--cyan-glow);
  background: rgba(34, 211, 238, 0.05);
}
.chart-pill.active {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.4);
}

.chart-area {
  background: var(--ink);
  color: var(--paper);
  padding: 22px 26px;
  position: relative;
  overflow: hidden;
}
.chart-area::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(34,211,238,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,211,238,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.chart-header {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 18px;
  position: relative; z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}
.chart-header .y { color: var(--steel-light); }
.chart-svg {
  width: 100%; height: 200px;
  position: relative; z-index: 1;
}
.chart-svg .axis { stroke: rgba(143, 160, 180, 0.3); stroke-width: 1; }
.chart-svg .axis-label { fill: var(--steel-light); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.04em; }
.chart-svg .grid-line { stroke: rgba(34, 211, 238, 0.08); stroke-width: 1; stroke-dasharray: 2 4; }
.chart-svg .data-line { fill: none; stroke: var(--cyan); stroke-width: 2; filter: drop-shadow(0 0 4px var(--cyan)); }
.chart-svg .data-fill { fill: var(--cyan); opacity: 0.08; }
.chart-svg .cursor-line { stroke: var(--cyan); stroke-width: 1; stroke-dasharray: 3 3; opacity: 0.6; }
.chart-svg .cursor-point { fill: var(--paper); stroke: var(--cyan); stroke-width: 2; filter: drop-shadow(0 0 8px var(--cyan)); }
.chart-svg .cursor-label-bg { fill: var(--cyan); }
.chart-svg .cursor-label-text { fill: var(--ink); font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: 0.04em; }
.chart-svg .header-readout { fill: var(--cyan); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; }

.chart-header-readout {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-shadow: 0 0 4px rgba(34,211,238,0.3);
  font-weight: 500;
}

/* Chart foot — computed dissipation values */
.chart-foot {
  background: var(--ink);
  color: var(--paper);
  padding: 0 26px 22px;
}
.chart-foot-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  border-top: 1px solid rgba(34,211,238,0.15);
  padding: 18px 0 14px;
}
.chart-foot-cell {
  padding: 0 16px;
  border-right: 1px solid rgba(34,211,238,0.1);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.chart-foot-cell:first-child { padding-left: 0; }
.chart-foot-cell:last-child { border-right: none; padding-right: 0; }
.chart-foot-cell .lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--steel-light);
  font-weight: 500;
  text-transform: uppercase;
}
.chart-foot-cell .lbl .sub {
  color: var(--steel);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0.04em;
}
.chart-foot-cell .val {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--paper);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-top: 2px;
}
.chart-foot-cell .val.highlight {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(34,211,238,0.3);
}
.chart-foot-note {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--steel-light);
  line-height: 1.5;
  padding-top: 6px;
}
.chart-foot-note a { color: var(--cyan); transition: color 0.15s; }
.chart-foot-note a:hover { color: var(--cyan-glow); }

/* Application examples */
.applications {
  margin-top: 40px;
}
.app-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hair-strong);
  border: 1px solid var(--hair-strong);
}
.app-item {
  background: var(--paper);
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.app-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan-deep);
  margin-bottom: 4px;
}
.app-icon svg { width: 100%; height: 100%; stroke: currentColor; fill: none; stroke-width: 1.4; }
.app-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.app-desc {
  font-size: 13px;
  color: var(--schematic);
  line-height: 1.5;
}
.app-rating {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--cyan-deep);
  margin-top: auto;
  padding-top: 10px;
  font-weight: 500;
}
.app-rating .dots { color: var(--steel); margin-left: 4px; }
.app-rating .dots .filled { color: var(--cyan); }

/* Context cards trio — sits between thermal section and applications */
.context-trio {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--hair-strong);
  border: 1px solid var(--hair-strong);
  margin: 40px 0;
}
.context-trio .aside-card {
  background: white;
  border: none;
  margin: 0;
  height: 100%;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
}
.context-trio .aside-card.contact-mini {
  background: var(--ink);
}
.context-trio .services-list {
  flex: 1;
}
.context-trio .contact-mini-actions {
  margin-top: auto;
}

/* Right column: sticky info (legacy, kept in case anything still references) */
.product-aside {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.aside-card {
  background: white;
  border: 1px solid var(--hair-strong);
  padding: 22px;
}
.aside-card-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--cyan-deep);
  font-weight: 500;
  margin-bottom: 14px;
  text-transform: uppercase;
}

/* Manufacturer / brand block */
.brand-block {
  display: flex; align-items: center; gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--hair-strong);
  margin-bottom: 14px;
}
.brand-mark {
  width: 44px; height: 44px;
  background: var(--ink);
  color: var(--cyan);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.brand-info { flex: 1; min-width: 0; }
.brand-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
}
.brand-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.06em;
  margin-top: 2px;
}
.brand-since {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--cyan-deep);
  letter-spacing: 0.08em;
  font-weight: 500;
}

.compliance {
  display: flex; flex-wrap: wrap; gap: 6px;
}
.compliance-pill {
  padding: 4px 8px;
  background: var(--paper);
  border: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--schematic);
  font-weight: 500;
}

/* Related services */
.services-list {
  display: flex; flex-direction: column; gap: 0;
}
.service-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline);
  cursor: pointer;
  transition: padding-left 0.2s var(--ease-instr);
}
.service-link:last-child { border-bottom: none; }
.service-link:hover { padding-left: 6px; }
.service-link:hover .service-arrow { color: var(--cyan); transform: translateX(2px); }
.service-link:hover .service-name { color: var(--wire); }
.service-icon {
  width: 32px; height: 32px;
  background: var(--paper);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan-deep);
}
.service-icon svg { width: 60%; height: 60%; stroke: currentColor; fill: none; stroke-width: 1.6; }
.service-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  transition: color 0.15s;
  line-height: 1.3;
}
.service-name .sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--steel);
  letter-spacing: 0.04em;
  display: block;
  margin-top: 2px;
  font-weight: 400;
}
.service-arrow {
  color: var(--steel);
  font-family: var(--font-mono);
  transition: color 0.15s, transform 0.15s;
}

/* Contact card */
.contact-mini {
  background: var(--ink);
  color: var(--paper);
}
.contact-mini .aside-card-label { color: var(--cyan); }
.contact-mini-quote {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.4;
  margin-bottom: 14px;
}
.contact-mini-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.contact-mini-btn {
  padding: 9px;
  background: rgba(34,211,238,0.1);
  border: 1px solid rgba(34,211,238,0.3);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  transition: all 0.15s;
  font-weight: 500;
}
.contact-mini-btn:hover { background: var(--cyan); color: var(--ink); }
.contact-mini-btn svg { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 1.6; }

/* ====================================================================
   ALTERNATIVES / RELATED
   ==================================================================== */
.product-related {
  background: var(--paper-warm);
  padding: 64px var(--gutter);
  border-top: 1px solid var(--hairline);
}
.product-related-inner { max-width: var(--max); margin: 0 auto; }
.alt-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--hair-strong);
  border: 1px solid var(--hair-strong);
}
.alt-card {
  background: var(--paper);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  cursor: pointer;
  transition: background 0.15s;
  position: relative;
}
.alt-card:hover { background: white; }
.alt-card:hover .alt-arrow { transform: translate(3px, -3px); color: var(--cyan); }
.alt-card.current {
  background: var(--ink);
  color: var(--paper);
}
.alt-card.current .alt-name { color: var(--paper); }
.alt-card.current .alt-cikk { color: var(--cyan); }
.alt-card.current .alt-spec { color: var(--steel-light); }
.alt-card.current .alt-delta { color: var(--cyan); border-color: var(--cyan); }
.alt-card.current .alt-tag { background: var(--cyan); color: var(--ink); border: none; }

.alt-tag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  padding: 3px 7px;
  background: var(--paper-2);
  border: 1px solid var(--hairline);
  color: var(--schematic);
  font-weight: 500;
}
.alt-cikk {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--cyan-deep);
  letter-spacing: 0.04em;
}
.alt-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.25;
}
.alt-spec {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--schematic);
  line-height: 1.5;
  letter-spacing: 0.02em;
}
.alt-delta {
  margin-top: auto;
  padding: 6px 0 0;
  border-top: 1px dashed var(--hair-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--cyan-deep);
  font-weight: 500;
}
.alt-arrow {
  position: absolute;
  top: 18px; right: 18px;
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 14px;
  transition: color 0.2s, transform 0.2s;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: var(--paper);
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  border: 1px solid var(--cyan);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s var(--ease-instr);
  display: flex; align-items: center; gap: 10px;
}
.toast .check { color: var(--cyan); filter: drop-shadow(0 0 4px var(--cyan)); }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ====================================================================
   RESPONSIVE
   ==================================================================== */
@media (max-width: 1100px) {
  .product-hero { grid-template-columns: 1fr; gap: 32px; }
  .product-body { grid-template-columns: 1fr; gap: 32px; }
  .product-aside { position: static; }
  .context-trio { grid-template-columns: 1fr; }
  .header-inner { grid-template-columns: auto 1fr auto; gap: 16px; }
  .csearch { display: none; }
  .nav { display: none; }
  .menu-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
  .menu-toggle span { width: 22px; height: 1.5px; background: var(--ink); }
  .alt-grid { grid-template-columns: repeat(2, 1fr); }
  .docs-strip { grid-template-columns: repeat(2, 1fr); }
  .app-list { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .quick-specs { grid-template-columns: 1fr; }
  .qspec { border-right: none; border-bottom: 1px solid var(--hairline); }
  .qspec:last-child { border-bottom: none; }
  .alt-grid { grid-template-columns: 1fr; }
  .docs-strip { grid-template-columns: 1fr; }
  .config-row { grid-template-columns: 1fr; }
  .spec-table { grid-template-columns: 1fr; }
  .spec-table .lbl { padding-bottom: 4px; }
  .spec-table .val { padding-top: 4px; border-bottom: 1px solid var(--hairline); }
  .spec-table .lbl { border-bottom: none; }
}


/* ===== Eleventy unified product panel (up- namespaced) ===== */

/* anchor-scroll offset — #-links (Termékek→#kategoriak, Szolgáltatások→#szolgaltatasok, footer→#kapcsolat) must land
   BELOW the ~79px sticky header, not under it. The demo's scroll-padding was lost in generation; restored here site-wide. */
html{scroll-behavior:smooth;scroll-padding-top:100px;}
@media(max-width:1100px){html{scroll-padding-top:150px;}}
/* tame the schematic grid on inner pages — drop the dense 8px mesh, keep the faint 64px lattice (matches the calmer category/hero aesthetic) */
.grid-bg{background-image:none;}
.up-panel{background:#fff;border:1px solid var(--hair-strong);position:relative;box-shadow:0 1px 0 rgba(11,42,74,.02),0 22px 48px -34px rgba(11,42,74,.28);}
/* refined cyan corner crop-marks — same instrument frame as the category panel */
.up-panel .pc{position:absolute;width:12px;height:12px;z-index:3;pointer-events:none;}
.up-panel .pc.tl{top:-1px;left:-1px;border-top:2px solid var(--cyan);border-left:2px solid var(--cyan);}
.up-panel .pc.tr{top:-1px;right:-1px;border-top:2px solid var(--cyan);border-right:2px solid var(--cyan);}
.up-panel .pc.bl{bottom:-1px;left:-1px;border-bottom:2px solid var(--cyan);border-left:2px solid var(--cyan);}
.up-panel .pc.br{bottom:-1px;right:-1px;border-bottom:2px solid var(--cyan);border-right:2px solid var(--cyan);}
.up-head{padding:24px 28px 20px;border-bottom:1px solid var(--hairline);}
.up-eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--cyan-deep);text-transform:uppercase;margin-bottom:7px;}
.up-h1{font-family:var(--font-display);font-weight:700;font-size:27px;margin:0;line-height:1.1;color:var(--ink);}
.up-h1 em{font-style:normal;color:var(--hoeller);}
.up-body{display:grid;grid-template-columns:1.05fr .95fr;}
.up-visual{border-right:1px solid var(--hairline);display:flex;flex-direction:column;min-width:0;}
.up-tabs{display:flex;border-bottom:1px solid var(--hairline);}
.up-tab{padding:12px 18px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--steel);cursor:pointer;background:var(--paper-warm);border-right:1px solid var(--hairline);}
.up-tab.active{background:#fff;color:var(--ink);box-shadow:inset 0 -2px 0 var(--cyan);}
.up-view{display:none;align-items:center;justify-content:center;flex:1;min-height:340px;padding:24px;background:#fff;}
.up-view.active{display:flex;}
.up-view img{max-width:100%;max-height:340px;object-fit:contain;}
.up-muted{color:var(--steel);font-family:var(--font-mono);font-size:12px;}
.up-config{padding:24px 28px;}
.up-cfghead{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;}
.up-cfglabel{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--cyan-deep);}
.up-cikk{font-family:var(--font-mono);font-weight:500;font-size:14px;border:1px solid var(--hair-strong);padding:7px 11px;background:var(--paper-warm);white-space:nowrap;}
.up-cfgdesc{font-size:13px;line-height:1.5;color:var(--steel);margin:0 0 16px;}
.up-field{margin-bottom:14px;}
.up-field label{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--steel);text-transform:uppercase;margin-bottom:5px;}
.up-field select,.up-field input[type=number]{width:100%;padding:10px;font-family:var(--font-mono);font-size:14px;border:1px solid var(--hair-strong);background:#fff;box-sizing:border-box;color:var(--ink);}
.up-chk{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 13px;border:1px solid var(--hairline);background:var(--paper-warm);cursor:pointer;}
.up-chk span{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--steel);text-transform:uppercase;}
.up-cta{display:block;width:100%;margin-top:10px;padding:14px;background:var(--ink);color:var(--paper);font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;text-align:center;border:none;cursor:pointer;text-decoration:none;box-sizing:border-box;}
.up-ctaghost{background:#fff;color:var(--ink);border:1px solid var(--hair-strong);}
.up-specs{margin:24px 0 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--hairline);border:1px solid var(--hairline);}
.up-spec{background:#fff;padding:16px;}
.up-spec .l{font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;color:var(--steel);text-transform:uppercase;}
.up-spec .v{font-family:var(--font-mono);font-size:18px;font-weight:500;margin-top:4px;color:var(--ink);}
.up-spec .u{font-size:11px;color:var(--steel);}
@media(max-width:820px){.up-body{grid-template-columns:1fr}.up-visual{border-right:none;border-bottom:1px solid var(--hairline)}.up-specs{grid-template-columns:repeat(2,1fr)}}

/* ===== detail-page closing rhythm — SHARED by product.njk (heatsink) + part.njk (every other category) ===== */
.product-page{padding-bottom:64px;}   /* root cause of "content touches footer": the page wrapper had ZERO bottom padding */
.related{margin-top:34px;}
.related-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:14px;}
.related-all{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--cyan-deep);text-decoration:none;white-space:nowrap;transition:color .15s;}
.related-all:hover{color:var(--cyan);}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.related-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--hair-strong);text-decoration:none;overflow:hidden;transition:border-color .15s,box-shadow .15s,transform .15s;}
.related-card:hover{border-color:var(--cyan);box-shadow:0 12px 28px -18px rgba(11,42,74,.42);transform:translateY(-2px);}
.related-card:hover .rc-arrow{color:var(--cyan);transform:translate(2px,-2px);}
.rc-thumb{aspect-ratio:4/3;background:var(--paper);display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--hairline);padding:14px;}
.rc-thumb img{max-width:100%;max-height:100%;width:auto;object-fit:contain;}
.rc-thumb svg{width:42px;height:42px;stroke:var(--steel);fill:none;stroke-width:1.1;opacity:.5;}
.rc-body{padding:11px 14px;flex:1;display:flex;flex-direction:column;gap:5px;min-width:0;}
.rc-cikk{font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rc-spec{font-family:var(--font-mono);font-size:11px;color:var(--steel);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rc-arrow{position:absolute;top:9px;right:11px;z-index:1;font-family:var(--font-mono);font-size:13px;color:var(--steel);transition:color .15s,transform .15s;}
@media(max-width:820px){.related-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.related-grid{grid-template-columns:1fr;}}


/* ===== Termékek dropdown — lean + solid dark (matches the dark header + footer) ===== */
.has-mm{position:static;}
/* mega-menu anchors to the header row so its right edge aligns with the cart (Tételek) button —
   the rightmost element (logo has margin-right:auto; menu-toggle is display:none on desktop). */
.header-inner{position:relative;}
.has-mm > .nav-link{cursor:pointer;}
/* panel background MIRRORS the header exactly (István 2026.07.02): at the top the header is transparent
   over the near-black hero (#0B0D12) so it reads black; on scroll it becomes solid #0A1420 (navy). The
   dropdown tracks both states via the same .hdr-top class, with the same .35s colour transition. */
.nav-dd{position:absolute;top:100%;right:0;left:auto;margin-top:11px;width:580px;max-width:92vw;background:#0A1420;border:1px solid rgba(255,255,255,.08);box-shadow:0 26px 64px -20px rgba(0,0,0,.8);opacity:0;visibility:hidden;transform:translateY(8px) scale(.985);transform-origin:right top;transition:opacity .18s ease,transform .22s cubic-bezier(.16,1,.3,1),background-color .35s ease;z-index:300;}
.header.over-hero.hdr-top .nav-dd{background:#0B0D12;}
.has-mm:hover .nav-dd,.has-mm:focus-within .nav-dd,.has-mm.mm-open .nav-dd{opacity:1;visibility:visible;transform:translateY(0) scale(1);}
.header .has-mm:hover > .nav-link{color:var(--cyan);}
.nav-dd::before{content:"";position:absolute;top:-13px;left:0;right:0;height:13px;}
.nav-dd-inner{padding:13px;}
.nav-dd-list{display:grid;grid-template-columns:1fr 1fr;gap:6px 7px;}
/* calm neutral rows — no cyan outline, no left rail; a quiet lift on hover so the panel reads as part of the dark header, not a neon overlay (István 2026.07.01) */
.nav-dd-item{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0;padding:10px 12px;text-decoration:none;background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.07);transition:background .15s,border-color .15s,transform .15s;}
.nav-dd-item:hover{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.16);transform:translateX(2px);}
.nav-dd-name{font-family:var(--font-body);font-size:12.5px;font-weight:500;line-height:1.3;color:var(--paper);}
.nav-dd-meta{font-family:var(--font-mono);font-size:10px;letter-spacing:.02em;color:var(--steel-light);white-space:nowrap;}
@media(max-width:1100px){.nav-dd{display:none!important;}}


/* ===== global product search (header CIKKSZÁM box) ===== */
.csearch-results{position:absolute;top:calc(100% + 7px);left:0;right:0;background:#fff;border:1px solid var(--hair-strong);box-shadow:0 24px 56px rgba(11,42,74,.18);max-height:64vh;overflow-y:auto;z-index:320;}
.csearch-results[hidden]{display:none;}
.csearch-results::after{content:"";position:absolute;top:-5px;left:-1px;width:8px;height:8px;background:var(--cyan);}
.csr-item{display:flex;align-items:center;gap:12px;padding:10px 14px 10px 16px;text-decoration:none;border-bottom:1px solid var(--hairline);}
.csr-item:last-child{border-bottom:none;}
.csr-item:hover,.csr-item.active{background:var(--paper-warm);box-shadow:inset 2px 0 0 var(--cyan);}
.csr-cikk{font-family:var(--font-mono);font-size:12.5px;font-weight:500;color:var(--ink);white-space:nowrap;}
.csr-name{font-family:var(--font-body);font-size:12px;color:var(--steel);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.csr-cat{font-family:var(--font-mono);font-size:9px;letter-spacing:.07em;color:var(--cyan-deep);text-transform:uppercase;white-space:nowrap;}
.csr-hl{color:var(--cyan-deep);font-weight:600;}
.csr-empty{padding:15px 16px;font-family:var(--font-mono);font-size:12px;color:var(--steel);}


/* ===== mobile nav drawer (appears with the hamburger, ≤1100px) ===== */
@media(max-width:1100px){
  .header-inner{display:flex;align-items:center;gap:14px;}
  .header-inner .logo{margin-right:auto;}
  .cart-btn{padding:8px 12px;}
}
.menu-toggle{background:none;border:none;}
.mnav-backdrop{position:fixed;inset:0;background:rgba(10,20,32,.5);z-index:400;}
.mnav-backdrop[hidden]{display:none;}
.mnav{position:fixed;top:0;right:0;bottom:0;width:340px;max-width:88vw;background:#fff;border-left:1px solid var(--hair-strong);box-shadow:-24px 0 60px rgba(11,42,74,.22);z-index:410;transform:translateX(100%);transition:transform .22s ease;display:flex;flex-direction:column;overflow-y:auto;}
.mnav.open{transform:translateX(0);}
.mnav-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--hairline);}
.mnav-title{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--cyan-deep);}
.mnav-close{background:none;border:none;font-size:26px;line-height:1;color:var(--ink);cursor:pointer;padding:0 4px;}
.mnav-search{position:relative;padding:16px 20px;border-bottom:1px solid var(--hairline);}
.mnav-search .csearch-frame{display:flex;align-items:center;background:#fff;border:1px solid var(--hair-strong);padding:0 12px;height:42px;}
.mnav-search .csearch-prefix{font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;color:var(--cyan-deep);margin-right:10px;border-right:1px solid var(--hair-strong);padding-right:10px;white-space:nowrap;}
.mnav-search .csearch-input{flex:1;border:none;outline:none;background:none;font-family:var(--font-mono);font-size:13px;color:var(--ink);width:100%;}
.mnav-results{position:static;margin-top:8px;box-shadow:none;border:1px solid var(--hairline);max-height:46vh;}
.mnav-results::after{display:none;}
.mnav-links{display:flex;flex-direction:column;padding:8px 0;}
.mnav-links a{padding:13px 20px;font-family:var(--font-body);font-size:15px;font-weight:500;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--hairline);}
.mnav-links a:hover{background:var(--paper-warm);color:var(--cyan-deep);}
.mnav-cta{margin:16px 20px;padding:14px;text-align:center;background:var(--ink);color:var(--paper);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-decoration:none;}
@media(min-width:1101px){.mnav,.mnav-backdrop{display:none!important;}}


/* ===== footer — tightened: one nav/contact tier + a single fine-print line ===== */
.footer{background:var(--ink);color:var(--paper);padding:52px var(--gutter) 0;position:relative;}
.footer::before{content:"";position:absolute;top:0;left:var(--gutter);right:var(--gutter);height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);}
.footer-inner{max-width:var(--max);margin:0 auto;}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.1fr;gap:48px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,0.08);}
.footer-brand{display:flex;align-items:stretch;gap:0;height:52px;margin-bottom:18px;}
.footer-brand-mark{width:52px;height:52px;background:transparent;border:1.5px solid rgba(255,255,255,.22);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;}
.footer-brand-mark svg{width:70%;height:70%;}
.footer-brand-word{display:flex;flex-direction:column;justify-content:center;padding:0 14px;border-top:2.5px solid var(--paper);border-bottom:2.5px solid var(--paper);font-family:var(--font-body);font-weight:700;font-size:15px;line-height:1;letter-spacing:0.04em;color:var(--paper);}
.footer-brand-word span:first-child{margin-bottom:4px;}
.footer-brand-suffix{font-family:var(--font-mono);font-size:10px;color:var(--steel-light);letter-spacing:0.18em;font-weight:500;align-self:center;padding-left:14px;margin-left:4px;border-left:1px solid rgba(255,255,255,0.16);}
.footer-blurb{font-size:13px;color:var(--steel-light);line-height:1.6;max-width:34ch;}
.footer-col h4{font-family:var(--font-mono);font-size:10px;letter-spacing:0.18em;color:var(--steel-light);margin-bottom:16px;text-transform:uppercase;font-weight:500;}
.footer-col ul{list-style:none;display:grid;gap:9px;}
.footer-col li{font-size:13px;line-height:1.5;color:var(--steel-light);}
.footer-col a{font-size:13px;color:var(--steel-light);transition:color 0.15s;text-decoration:none;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{padding:20px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;font-family:var(--font-mono);font-size:10px;letter-spacing:0.08em;color:var(--steel);gap:10px 22px;}
.footer-bottom .copy{color:var(--steel);}
.footer-bottom a{transition:color 0.15s;color:var(--steel);text-decoration:none;}
.footer-bottom a:hover{color:var(--cyan);}
.footer-bottom .legal{display:flex;flex-wrap:wrap;gap:20px;}
@media(max-width:600px){.footer-bottom{justify-content:center;text-align:center;}}
@media(max-width:980px){.footer-top{grid-template-columns:1fr 1fr;gap:32px;}}
@media(max-width:620px){.footer-top{grid-template-columns:1fr;}.footer{padding-top:44px;}}


/* ===== dark-hero header ("over-hero") — joins the instrument at the top, white on scroll ===== */
.header{transition:background-color .35s ease, border-color .35s ease;}
.header .logo-wordmark,.header .logo-suffix,.header .nav-link,.header .nav-cta,
.header .csearch-frame,.header .csearch-input,.header .csearch-prefix{transition:color .3s ease, background-color .3s ease, border-color .3s ease;}
.header.over-hero{background:#0A1420;border-bottom-color:rgba(34,211,238,0.12);backdrop-filter:none;}
.header.over-hero .logo-wordmark{color:var(--paper);border-top-color:var(--paper);border-bottom-color:var(--paper);}
.header.over-hero .logo-suffix{color:var(--steel-light);border-left-color:rgba(255,255,255,0.16);}
.header.over-hero .nav-link{color:var(--paper);}
.header.over-hero .nav-link:hover{color:var(--cyan);background:rgba(34,211,238,0.08);}
.header.over-hero .nav-cta{background:transparent;color:var(--paper);border-color:rgba(34,211,238,0.5);}
.header.over-hero .nav-cta:hover{background:var(--cyan);color:var(--ink);border-color:var(--cyan);}
.header.over-hero .csearch-frame{background:rgba(34,211,238,0.05);border-color:rgba(34,211,238,0.25);}
.header.over-hero .csearch-frame::before,.header.over-hero .csearch-frame::after{border-color:rgba(34,211,238,0.4);}
.header.over-hero .csearch-prefix{color:var(--cyan);border-right-color:rgba(34,211,238,0.25);}
.header.over-hero .csearch-input{color:var(--paper);}
.header.over-hero .csearch-input::placeholder{color:#7d8ea2;}