/* nsOxygen public site. Text colours stay dark (secondary at most #374151): owner's readability rule. */

:root {
  --brand-orange: #FF5A00;
  --brand-orange-dark: #D94C00;
  --brand-navy: #1F2A36;
  --brand-navy-deep: #17202A;
  --check-green: #15803D;
  --text-strong: #111827;
  --text-body: #1f2937;
  --text-secondary: #374151;
  --text-on-dark: #F9FAFB;
  --text-on-dark-secondary: #E5E7EB;
  --surface: #FFFFFF;
  --surface-tinted: #F4F6F9;
  --border: #D9DEE5;
  --radius: 14px;
  --shadow: 0 18px 40px rgba(17, 24, 39, 0.16);
  --font: "Segoe UI", "Noto Sans", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background: var(--surface);
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--brand-orange-dark); }

h1, h2, h3 { color: var(--text-strong); line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; }

.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 820px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 10px;
  border: 2px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.button-small { min-height: 40px; padding: 0 16px; font-size: 0.95rem; }
.button-primary { background: var(--brand-orange); color: #FFFFFF; }
.button-primary:hover { background: var(--brand-orange-dark); }
.button-ghost { border-color: rgba(255, 255, 255, 0.6); color: var(--text-on-dark); }
.button-ghost:hover { border-color: #FFFFFF; background: rgba(255, 255, 255, 0.08); }
.button-outline { border-color: var(--brand-navy); color: var(--brand-navy); background: var(--surface); }
.button-outline:hover { background: var(--brand-navy); color: #FFFFFF; }
/* A download button: an arrow into a tray, drawn in the button's own text colour. */
.button[data-download]::before {
  content: "";
  flex: none;
  width: 20px;
  height: 20px;
  background-color: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3v12'/%3E%3Cpath d='M6.5 10 12 15.5 17.5 10'/%3E%3Cpath d='M4 20h16'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3v12'/%3E%3Cpath d='M6.5 10 12 15.5 17.5 10'/%3E%3Cpath d='M4 20h16'/%3E%3C/svg%3E") center / contain no-repeat;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-orange);
}
.eyebrow-dark { color: var(--brand-orange-dark); }

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 16px; }
.brand img { height: 36px; width: auto; }
.main-navigation { display: flex; align-items: center; gap: 26px; }
.main-navigation a:not(.button) { color: var(--text-body); text-decoration: none; font-weight: 600; }
.main-navigation a:not(.button):hover { color: var(--brand-orange-dark); }
.menu-button {
  display: none;
  min-height: 40px;
  padding: 0 14px;
  border: 2px solid var(--brand-navy);
  border-radius: 10px;
  background: var(--surface);
  color: var(--brand-navy);
  font: inherit;
  font-weight: 600;
}

/* Hero */

.hero {
  background:
    radial-gradient(circle at 85% 10%, rgba(255, 90, 0, 0.22), transparent 45%),
    linear-gradient(160deg, var(--brand-navy) 0%, var(--brand-navy-deep) 100%);
  color: var(--text-on-dark);
  padding: 72px 0 88px;
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.hero h1 { color: #FFFFFF; }
.lead { font-size: 1.2rem; color: var(--text-on-dark-secondary); margin: 0 0 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note { margin: 18px 0 0; color: var(--text-on-dark-secondary); font-size: 0.95rem; }
.hero-screen { margin: 0; }

.screen-frame {
  border-radius: var(--radius);
  padding: 10px;
  background: var(--brand-navy-deep);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.screen-frame img { border-radius: 8px; }

.hero-slides { position: relative; aspect-ratio: 1366 / 768; overflow: hidden; border-radius: 8px; }
.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transform: scale(1.02);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.hero-slide.is-active { opacity: 1; transform: scale(1); }
.hero-slides-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
  padding: 0 6px;
}
.hero-slide-caption { color: var(--text-on-dark); font-weight: 600; }
.hero-slide-dots { display: flex; gap: 8px; }
.hero-slide-dot {
  width: 12px;
  height: 12px;
  padding: 0;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background-color 0.2s, width 0.2s;
}
.hero-slide-dot.is-active { width: 28px; border-radius: 999px; background: var(--brand-orange); border-color: var(--brand-orange); }

@media (prefers-reduced-motion: reduce) {
  .hero-slide { transition: none; transform: none; }
}

/* Facts strip */

.facts { background: var(--surface-tinted); border-bottom: 1px solid var(--border); }
.facts-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; padding-top: 32px; padding-bottom: 32px; }
.fact strong { display: block; color: var(--text-strong); font-size: 1.05rem; margin-bottom: 4px; }
.fact span { color: var(--text-secondary); font-size: 0.95rem; }

/* Sections */

.section { padding: 88px 0; }
.section-tinted { background: var(--surface-tinted); }
.section-dark { background: var(--brand-navy); color: var(--text-on-dark-secondary); }
.section-dark h2 { color: #FFFFFF; }
.section-heading { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-heading p { color: var(--text-secondary); font-size: 1.08rem; }

.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 22px;
}
.feature p { margin: 0; color: var(--text-secondary); font-size: 0.97rem; }
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border-radius: 10px;
  background: rgba(255, 90, 0, 0.12);
  color: var(--brand-orange-dark);
  font-size: 1.3rem;
}

.feature-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.section-heading-light p { color: var(--text-on-dark-secondary); }
.section-dark .showcase-text a { color: #FFFFFF; text-decoration-color: var(--brand-orange); text-underline-offset: 3px; }
.section-heading-light a, .section-dark .section-heading a { color: #FFFFFF; text-decoration-color: var(--brand-orange); text-underline-offset: 3px; }
.stratus-extras { margin: 28px 0 0; text-align: center; color: var(--text-on-dark); font-weight: 600; }
.stratus-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 24px; }

.showcase { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: center; }
.showcase-reverse .showcase-text { order: 2; }
.showcase-screen { margin: 0; }
.showcase-screen figcaption { margin-top: 12px; text-align: center; font-size: 0.95rem; }
.screen-frame-dark { background: #0F151C; }

.check-list { list-style: none; padding: 0; margin: 20px 0 0; }
.check-list li { position: relative; padding-left: 32px; margin-bottom: 12px; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--check-green);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.check-list-light li { color: var(--text-on-dark); }

/* Installation */

.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.install-option {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.install-option-os {
  position: relative;
  overflow: hidden;
  border: 0;
  background: radial-gradient(circle at 85% 18%, rgba(255, 90, 0, 0.14), transparent 45%), #24303D;
  color: var(--text-on-dark-secondary);
  box-shadow: var(--shadow);
}
.install-option-os::before {
  content: "";
  position: absolute;
  top: 0;
  right: -20px;
  width: 300px;
  height: 296px;
  background: url("../img/nsoxygenos-atom.png") no-repeat center / contain;
  opacity: 0.35;
  pointer-events: none;
}
.install-option-os > * { position: relative; }
.install-option-os .install-label { color: #FFFFFF; }
.install-option .install-os-wordmark { font-family: Georgia, "Times New Roman", serif; font-size: 2rem; font-weight: 700; color: #FFFFFF; }
.install-os-wordmark span { color: var(--brand-orange); }
.install-option-os .install-for { color: var(--text-on-dark-secondary); }
.install-option-os .check-list li { color: var(--text-on-dark); }
.install-option-os .install-requirements-heading { color: #FFB085; }
.install-option-os .install-requirements { border-top-color: rgba(255, 255, 255, 0.18); }
.install-option-os .install-requirements dt,
.install-option-os .install-requirements dd { border-bottom-color: rgba(255, 255, 255, 0.18); }
.install-option-os .install-requirements dt { color: #FFFFFF; }
.install-option-os .install-requirements dd { color: var(--text-on-dark-secondary); }
.install-option-os .install-note-warning { background: rgba(255, 90, 0, 0.16); color: #FFE4D4; border: 1px solid rgba(255, 90, 0, 0.45); }
.install-option-os .install-file { color: var(--text-on-dark-secondary); }
.install-option-os .install-manual .button-outline { color: #FFFFFF; border-color: rgba(255, 255, 255, 0.6); background: transparent; }
.install-option h3 { font-size: 1.5rem; }
.install-option .check-list { flex: 1; }
.install-label {
  margin: 0 0 10px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-navy);
}
.install-for { margin: 0; color: var(--text-secondary); font-size: 1.05rem; }
.install-note {
  margin: 12px 0 0;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--surface-tinted);
  color: var(--text-body);
  font-size: 0.95rem;
}
.install-note-warning { background: #FFF1E8; color: #7C2D12; font-weight: 600; }
.install-requirements-details { margin: 8px 0 4px; }
.install-requirements-heading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand-orange-dark);
  cursor: pointer;
  list-style: none;
}
.install-requirements-heading::-webkit-details-marker { display: none; }
.install-requirements-heading::after { content: "▾"; transition: transform 0.15s; }
.install-requirements-details[open] .install-requirements-heading { margin-bottom: 10px; }
.install-requirements-details[open] .install-requirements-heading::after { transform: rotate(180deg); }
.install-requirements {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0;
  margin: 0 0 4px;
  font-size: 0.95rem;
  border-top: 1px solid var(--border);
}
.install-requirements dt,
.install-requirements dd { margin: 0; padding: 7px 0; border-bottom: 1px solid var(--border); }
.install-requirements dt { padding-right: 18px; font-weight: 600; color: var(--text-strong); }
.install-requirements dd { color: var(--text-body); }
.fact a { color: inherit; text-decoration: underline; text-decoration-color: var(--brand-orange); text-underline-offset: 3px; }
.install-footnote { margin: 28px 0 0; text-align: center; color: var(--text-secondary); }

/* Editions */

.mode-switch {
  display: inline-flex;
  margin-top: 8px;
  padding: 4px;
  border-radius: 12px;
  background: var(--surface-tinted);
  border: 1px solid var(--border);
}
.mode-button {
  min-height: 42px;
  padding: 0 22px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text-body);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.mode-button.is-active { background: var(--brand-navy); color: #FFFFFF; }

.edition-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; align-items: stretch; }
.edition {
  position: relative;
  overflow-wrap: break-word;
  hyphens: auto;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.edition .button { white-space: normal; text-align: center; }
.edition-featured { border: 2px solid var(--brand-orange); box-shadow: var(--shadow); }
.edition-badge {
  position: absolute;
  top: -14px;
  left: 24px;
  margin: 0;
  padding: 2px 12px;
  border-radius: 999px;
  background: var(--brand-orange);
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 700;
}
.edition h3 { font-size: 1.35rem; margin-bottom: 4px; }
.edition-for { margin: 0 0 16px; color: var(--text-secondary); }
.edition-price { margin: 0 0 18px; font-size: 1.8rem; font-weight: 700; color: var(--text-strong); }
.edition-price span { font-size: 1rem; font-weight: 600; color: var(--text-secondary); }
.edition-price-soon { font-size: 1.25rem; color: var(--brand-navy); }
.edition-price .edition-price-amount { font-size: inherit; font-weight: inherit; color: inherit; }
.edition-list { list-style: none; padding: 0; margin: 0 0 24px; flex: 1; }
.edition-list li { padding: 8px 0 8px 28px; border-top: 1px solid var(--border); position: relative; }
.edition-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--check-green); font-weight: 700; }
body[data-current-mode="retail"] .only-restaurant,
body[data-current-mode="restaurant"] .only-retail { display: none; }
.edition-platform { font-weight: 600; color: var(--text-strong); }
.edition-list li.edition-not-included { color: var(--text-secondary); }
.edition-list li.edition-not-included::before { content: "✕"; color: #B91C1C; }
.edition-platform a { color: var(--brand-navy); text-decoration-color: var(--brand-orange); text-underline-offset: 3px; }
.edition-footnote { margin: 28px auto 0; max-width: 720px; text-align: center; color: var(--text-secondary); }
.edition-price-note { margin: -14px 0 18px; font-weight: 600; color: var(--text-secondary); }
.edition-for a { color: var(--brand-navy); text-decoration-color: var(--brand-orange); text-underline-offset: 3px; }
.edition-oxygen { margin: 32px auto 0; text-align: center; font-weight: 700; color: var(--brand-navy); }

/* „Која молекула сте вие?“ */

.molecule-box {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
  margin: 40px auto 0;
  max-width: 980px;
  padding: 32px;
  background: var(--surface-tinted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.molecule-box h3 { font-size: 1.5rem; margin-bottom: 4px; }
.molecule-question { margin: 0 0 14px; color: var(--text-secondary); }
.molecule-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.molecule-button {
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border: 2px solid var(--brand-navy);
  border-radius: 10px;
  background: var(--surface);
  color: var(--brand-navy);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.molecule-button:hover { border-color: var(--brand-orange); }
.molecule-button.is-active { background: var(--brand-orange); border-color: var(--brand-orange); color: #FFFFFF; }
.molecule-name { margin: 0 0 4px; font-size: 1.25rem; font-weight: 700; color: var(--text-strong); }
.molecule-wink { margin: 0 0 16px; color: var(--text-secondary); }
.molecule-price { display: flex; flex-wrap: wrap; gap: 12px 32px; margin: 0 0 12px; }
.molecule-price[hidden] { display: none; }
.molecule-price dt { font-size: 0.9rem; color: var(--text-secondary); }
.molecule-price dd { margin: 0; font-size: 1.5rem; font-weight: 700; color: var(--text-strong); }
.molecule-rule { margin: 0; font-size: 0.95rem; color: var(--text-secondary); }
.molecule-svg { display: block; width: 100%; max-width: 280px; margin: 0 auto; }
.molecule-bond { stroke: var(--brand-navy); stroke-width: 5; stroke-linecap: round; }
.molecule-atom { fill: var(--brand-orange); stroke: var(--brand-orange-dark); stroke-width: 2; }
.molecule-atom-red { fill: #B91C1C; stroke: #7F1D1D; }
.molecule-atom-label { font-family: var(--font); font-size: 15px; font-weight: 700; fill: #FFFFFF; text-anchor: middle; }

/* Launch banner */

.launch-banner { display: block; background: var(--brand-navy); color: var(--text-on-dark); text-decoration: none; }
.launch-banner-inner { display: flex; align-items: center; gap: 16px; padding-top: 12px; padding-bottom: 12px; }
.launch-banner-symbol {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--brand-orange);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1.2rem;
}
.launch-banner-symbol sup { font-size: 0.6em; margin-right: 1px; }
.launch-banner-text { flex: 1; }
.launch-banner-text strong { color: #FFFFFF; }
.launch-banner-link { flex-shrink: 0; font-weight: 700; color: #FFFFFF; text-decoration: underline; text-decoration-color: var(--brand-orange); text-underline-offset: 4px; }
.launch-banner:hover .launch-banner-link { color: var(--brand-orange); }

/* The launch offer's nucleus */

.nucleus { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.nucleus-lead { font-size: 1.08rem; color: var(--text-secondary); }
.nucleus-offer { display: grid; gap: 12px; margin: 24px 0 16px; }
.nucleus-offer-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 6px solid var(--brand-orange);
  border-radius: 10px;
}
.nucleus-offer-neutron { border-left-color: var(--brand-navy); }
.nucleus-offer-item strong { color: var(--text-strong); }
.nucleus-offer-item b { color: var(--brand-orange-dark); }
.nucleus-offer-neutron b { color: var(--brand-navy); }
.nucleus-counter { font-weight: 700; color: var(--text-strong); margin: 0 0 20px; }
.nucleus-rules { margin-top: 24px; }
.nucleus-rules summary { cursor: pointer; font-weight: 600; color: var(--brand-navy); }
.nucleus-rules ul { margin: 12px 0 0; padding-left: 20px; color: var(--text-secondary); }
.nucleus-rules li { margin-bottom: 6px; }
.nucleus-svg { display: block; width: 100%; max-width: 360px; margin: 0 auto 24px; }
.nucleus-orbits ellipse { fill: none; stroke: #9CA3AF; stroke-width: 1; }
.nucleus-electrons circle { fill: var(--brand-navy); }
.nucleus-particle { stroke-width: 2.5; }
.nucleus-proton { fill: #FFFFFF; stroke: var(--brand-orange); stroke-dasharray: 4 3; }
.nucleus-neutron { fill: #FFFFFF; stroke: var(--brand-navy); stroke-dasharray: 4 3; }
.nucleus-proton.is-taken { fill: var(--brand-orange); stroke-dasharray: none; }
.nucleus-neutron.is-taken { fill: var(--brand-navy); stroke-dasharray: none; }
.nucleus-number { font-family: var(--font); font-size: 14px; font-weight: 700; text-anchor: middle; }
.nucleus-number-proton { fill: var(--brand-orange-dark); }
.nucleus-number-neutron { fill: var(--brand-navy); }
.nucleus-number.is-taken { fill: #FFFFFF; }
.nucleus-visual { position: relative; }
.nucleus-particle-group { cursor: pointer; outline: none; }
.nucleus-particle-group:hover .nucleus-particle,
.nucleus-particle-group:focus-visible .nucleus-particle { stroke-width: 4; }
.nucleus-hint { margin: 0; text-align: center; color: var(--text-secondary); font-size: 0.95rem; }
.nucleus-popover {
  position: absolute;
  z-index: 5;
  width: 260px;
  max-width: 100%;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  pointer-events: none;
}
.nucleus-popover[hidden] { display: none; }
.nucleus-popover-kind { margin: 0 0 8px; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--brand-orange-dark); }
.nucleus-popover-body { display: flex; align-items: center; gap: 12px; }
.nucleus-popover-text,
.nucleus-strip-text { display: flex; flex-direction: column; min-width: 0; }
.nucleus-popover-text strong,
.nucleus-strip-text strong { color: var(--text-strong); }
.nucleus-popover-text span,
.nucleus-strip-text span { color: var(--text-secondary); font-size: 0.95rem; }
.nucleus-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  overflow: hidden;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 1.3rem;
}
.nucleus-badge-proton { background: var(--brand-orange); }
.nucleus-badge-neutron { background: var(--brand-navy); }
.nucleus-badge-logo { width: 100%; height: 100%; object-fit: cover; background: #FFFFFF; }

/* The nucleus strip near the bottom */

.nucleus-strip { overflow: hidden; padding: 4px 0 8px; }
.nucleus-strip-track { display: flex; justify-content: center; gap: 16px; margin: 0; padding: 0 20px; list-style: none; }
.nucleus-strip-track.is-rotating { justify-content: flex-start; width: max-content; padding: 0; animation: nucleus-strip-rotation linear infinite; }
.nucleus-strip:hover .nucleus-strip-track { animation-play-state: paused; }
.nucleus-strip-card {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 280px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.nucleus-strip-track.is-rotating .nucleus-strip-card { margin-right: 16px; }
.nucleus-strip-track.is-rotating { gap: 0; }
.nucleus-strip-text .nucleus-strip-place { font-size: 0.85rem; font-weight: 700; color: var(--brand-orange-dark); }
@keyframes nucleus-strip-rotation { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .nucleus-strip { overflow-x: auto; }
  .nucleus-strip-track.is-rotating { animation: none; }
}

/* Privacy policy page */

.policy h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.policy h2 { font-size: 1.35rem; margin-top: 36px; }
.policy p, .policy li { color: var(--text-body); }
.policy ul { padding-left: 22px; }
.policy li { margin-bottom: 6px; }
.policy-date { color: var(--text-secondary); font-weight: 600; }
.policy-link-button { color: var(--brand-orange-dark); }
.policy-table-wrapper { overflow-x: auto; margin: 0 0 16px; }
.policy-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 0.95rem; }
.policy-table th, .policy-table td { padding: 10px 12px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.policy-table th { background: var(--surface-tinted); color: var(--text-strong); }
.policy-cookie-note { padding: 10px 14px; border-radius: 8px; background: #DCFCE7; color: #14532D; font-weight: 600; }

/* Questions */

.question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  padding: 0 22px;
}
.question summary {
  cursor: pointer;
  padding: 18px 0;
  font-weight: 600;
  color: var(--text-strong);
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.question summary::-webkit-details-marker { display: none; }
.question summary::after { content: "+"; color: var(--brand-orange-dark); font-size: 1.4rem; line-height: 1; }
.question[open] summary::after { content: "−"; }
.question p { margin: 0 0 18px; color: var(--text-secondary); }

/* Contact */

.contact { display: grid; grid-template-columns: 1fr 1.3fr; gap: 56px; align-items: start; }
.contact-text p { color: var(--text-secondary); font-size: 1.08rem; }
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  background: var(--surface-tinted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.contact-form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; color: var(--text-strong); font-size: 0.95rem; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  font: inherit;
  font-weight: 400;
  color: var(--text-strong);
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid #9CA3AF;
  border-radius: 8px;
  background: var(--surface);
}
.contact-form textarea::placeholder { color: #4B5563; }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus { outline: 3px solid rgba(255, 90, 0, 0.35); border-color: var(--brand-orange); }
.contact-form-wide { grid-column: 1 / -1; }
.contact-form-result { margin: 0; padding: 12px 16px; border-radius: 8px; background: #DCFCE7; color: #14532D; font-weight: 600; }
.contact-form-result.is-error { background: #FEE2E2; color: #7F1D1D; }
.contact-form-optional { margin-top: -2px; font-weight: 400; font-size: 0.875rem; color: var(--text-secondary); }
.contact-form-privacy { margin: 0; font-size: 0.95rem; color: var(--text-secondary); }
.contact-form-trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-form { position: relative; }
.contact-form button[disabled] { opacity: 0.7; cursor: wait; }
.contact-form .cf-turnstile { min-height: 65px; }

/* Footer */

.site-footer { background: var(--brand-navy-deep); color: var(--text-on-dark-secondary); padding: 48px 0; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.3fr 1fr; gap: 32px; }
.site-footer p { margin: 0 0 6px; }
.site-footer strong { color: #FFFFFF; }
.site-footer a { color: var(--text-on-dark); }
.site-footer img { height: 32px; width: auto; margin-bottom: 12px; }
.link-button { background: none; border: 0; padding: 0; color: var(--text-on-dark); font: inherit; text-decoration: underline; cursor: pointer; }

/* Cookie banner */

.cookie-banner {
  position: fixed;
  left: 20px;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.cookie-banner[hidden] { display: none; }
.cookie-banner p { margin: 0; color: var(--text-body); font-size: 0.95rem; }
.cookie-actions { display: flex; gap: 10px; flex-shrink: 0; }

/* Narrow screens */

@media (max-width: 1020px) {
  .feature-grid, .edition-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-inner, .showcase, .contact, .install-grid, .nucleus, .molecule-box { grid-template-columns: 1fr; }
  .molecule-svg { max-width: 220px; }
  .showcase-reverse .showcase-text { order: 0; }
}

@media (max-width: 1100px) {
  .edition-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .menu-button { display: inline-flex; align-items: center; }
  .main-navigation {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
  }
  .main-navigation.is-open { display: flex; }
  .main-navigation a:not(.button) { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .main-navigation .button { margin-top: 14px; }
}

@media (max-width: 620px) {
  .container { padding: 0 16px; }
  .section { padding: 64px 0; }
  .hero { padding: 48px 0 56px; }
  .feature-grid, .edition-grid, .facts-grid, .footer-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; padding: 20px; }
  .cookie-banner { flex-direction: column; align-items: stretch; left: 12px; right: 12px; bottom: 12px; }
  .cookie-actions .button { flex: 1; }
  .brand img { height: 30px; }
  .molecule-box { padding: 20px; }
  .launch-banner-inner { flex-wrap: wrap; gap: 8px 12px; }
  .launch-banner-text { flex-basis: calc(100% - 56px); }
  .launch-banner-link { margin-left: 56px; }
}

/* 8-month promotion (2.11.2026) */
.promo-banner { background: var(--brand-orange); }
.promo-banner .launch-banner-link { text-decoration-color: #FFFFFF; }
.promo-banner:hover .launch-banner-link { color: var(--brand-navy); }
.promo-banner .promo-symbol { background: #FFFFFF; color: var(--brand-orange); }
.promo-symbol sub { font-size: 0.6em; margin-right: 1px; }
.promo-box { margin: 0 0 28px; padding: 20px 24px; border: 2px dashed var(--brand-orange); border-radius: var(--radius); background: #FFF4EC; }
.promo-box p { margin: 0 0 6px; }
.promo-box-tag { display: inline-block; padding: 2px 10px; border-radius: 999px; background: var(--brand-orange); color: #FFFFFF; font-weight: 700; font-size: 0.9rem; }
.promo-box-tag sub { font-size: 0.65em; }
.promo-box-note { font-weight: 600; color: var(--text-strong); }
.promo-box-title { font-size: 1.35rem; font-weight: 700; color: var(--text-strong); }
.edition-price-promo { position: relative; display: inline-block; padding: 18px 12px 8px; border: 2px dashed var(--brand-orange); border-radius: 10px; }
.edition-price-promo .edition-price-tag { position: absolute; top: -11px; left: 10px; padding: 0 8px; background: var(--brand-orange); color: #FFFFFF; border-radius: 999px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.02em; }
.price-fence { padding: 0 6px; border: 2px dashed var(--brand-orange); border-radius: 6px; white-space: nowrap; }
.install-download { margin: 18px 0 4px; text-align: center; }
.install-download .button { white-space: normal; text-align: center; }
.install-file { margin: 0; font-size: 0.95rem; color: var(--text-secondary); text-align: center; }
.install-manual { margin: 14px 0 12px; text-align: center; }
.install-manual .button { white-space: normal; text-align: center; }
.manual-jump { display: flex; flex-wrap: wrap; gap: 10px; }
.manual h3 { margin-top: 22px; }
.manual-steps { padding-left: 24px; }
.manual-steps li { margin-bottom: 10px; color: var(--text-body); }
.manual code { font-size: 0.9em; overflow-wrap: anywhere; }
.manual-note { padding: 10px 14px; border-radius: 8px; background: #FFF4EC; color: var(--text-strong); font-weight: 600; }
.manual-shot { display: block; width: 100%; max-width: 640px; height: auto; margin: 10px 0 4px; border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 6px 18px rgba(17, 24, 39, 0.10); }
.manual-shot-note { display: block; font-size: 0.9rem; color: var(--text-secondary); }

/* Оксиметар (2.11.2026) */
.feature-more { margin-top: 10px; font-weight: 700; }
.feature-more a { color: var(--brand-orange); text-decoration: none; }
.feature-more a:hover { text-decoration: underline; }
.oximeter-offer { margin-top: 28px; padding: 20px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.oximeter-offer p { margin: 0 0 8px; }
.oximeter-price { font-size: 1.15rem; color: var(--text-strong); }
.oximeter-family { color: var(--text-secondary); }
.edition-addons { margin: 12px 0 0; line-height: 1.55; padding: 12px 16px; border-radius: 10px; background: var(--surface-tinted); color: var(--text-strong); }
.edition-addons a { color: var(--brand-orange); font-weight: 700; }
.nucleus-popover-link { pointer-events: auto; display: block; margin-top: 4px; font-weight: 700; color: var(--brand-orange); text-decoration: none; }
.nucleus-particle-group { cursor: pointer; }
.price-yearly-note { display: block; margin-top: 4px; font-size: 0.9rem; font-weight: 400; color: var(--text-secondary); }
.nucleus-strip-link { font-weight: 700; color: var(--brand-orange); text-decoration: none; }
.nucleus-strip-link:hover { text-decoration: underline; }
.manual-placeholder { display: none; margin: 10px 0 4px; padding: 28px 16px; max-width: 640px; border: 2px dashed var(--border); border-radius: 10px; background: var(--surface-tinted); color: var(--text-secondary); font-size: 0.9rem; text-align: center; }