@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700;900&display=swap');

:root {
  color-scheme: dark;
  --bg: #030303;
  --bg-soft: #090909;
  --bg-elevated: #111111;
  --surface: rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.055);
  --text: #f2f2f2;
  --text-muted: #aaaaaa;
  --text-soft: #7f7f7f;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(241, 199, 21, 0.35);
  --accent: #F1C715;
  --accent-strong: #FFD84A;
  --accent-soft: rgba(241, 199, 21, 0.14);
  --shadow: 0 24px 54px rgba(0, 0, 0, 0.34);
  --radius: 2px;
  --radius-lg: 2px;
  --max: 1520px;
  --font: "Roboto", Arial, Helvetica, sans-serif;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f5f3;
  --bg-soft: #eceae4;
  --bg-elevated: #ffffff;
  --surface: rgba(0, 0, 0, 0.035);
  --surface-2: rgba(0, 0, 0, 0.06);
  --text: #121212;
  --text-muted: #4f4f4f;
  --text-soft: #6d6d6d;
  --border: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(241, 199, 21, 0.35);
  --accent: #F1C715;
  --accent-strong: #FFD84A;
  --accent-soft: rgba(241, 199, 21, 0.14);
  --shadow: 0 24px 54px rgba(52, 44, 32, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(241, 199, 21, 0.06), transparent 24%),
    linear-gradient(180deg, #060606 0%, #030303 100%);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.68;
  min-width: 320px;
}

[data-theme="light"] body {
  background:
    radial-gradient(circle at top right, rgba(241, 199, 21, 0.12), transparent 26%),
    linear-gradient(180deg, #faf9f6 0%, #efede7 100%);
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
}

.site-header {
  background: rgba(3, 3, 3, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px) saturate(150%);
  position: sticky;
  top: 0;
  z-index: 50;
}

[data-theme="light"] .site-header {
  background: rgba(250, 249, 246, 0.94);
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

.site-header::after {
  background: linear-gradient(90deg, transparent, rgba(241, 199, 21, 0.38), transparent);
  bottom: 0;
  content: "";
  height: 1px;
  left: 0;
  opacity: 0.55;
  position: absolute;
  right: 0;
}

.nav-wrap {
  align-items: center;
  display: flex;
  gap: 1.25rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  min-height: 88px;
  padding: 0 1.25rem;
}

.brand {
  align-items: center;
  display: inline-flex;
}

.brand img {
  height: auto;
  width: 188px;
}

.logo {
  display: block;
}

.logo-dark {
  display: none;
}

.logo-light {
  display: block;
}

[data-theme="light"] .logo-dark {
  display: block;
}

[data-theme="light"] .logo-light {
  display: none;
}

.brand-mark {
  color: var(--accent);
  font-size: 1.35rem;
  font-weight: 800;
}

.brand-sub {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.nav {
  align-items: center;
  display: flex;
  gap: clamp(0.65rem, 1.4vw, 2.1rem);
}

.nav a,
.nav button,
.language-link {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  min-height: 40px;
  padding: 0.35rem 0;
  text-transform: uppercase;
}

.nav a:hover,
.nav button:hover,
.language-link:hover {
  border-color: var(--border);
  color: var(--text);
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.03) !important;
  border-color: var(--border) !important;
  font-weight: 700 !important;
  padding: 0.6rem 0.9rem !important;
}

.menu-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  display: none;
  min-height: 42px;
  padding: 0.5rem 0.75rem;
  text-transform: uppercase;
}

.hero,
.section,
.cta-section {
  padding: clamp(4.9rem, 6.8vw, 6.6rem) 1.25rem;
}

.hero {
  min-height: min(82vh, 760px);
  overflow: hidden;
  position: relative;
}

.hero::before {
  background:
    linear-gradient(90deg, transparent 0 49%, var(--border) 50%, transparent 51%),
    linear-gradient(0deg, transparent 0 49%, var(--border) 50%, transparent 51%);
  background-size: 92px 92px;
  content: "";
  inset: 0;
  opacity: 0.12;
  pointer-events: none;
  position: absolute;
}

.hero-inner,
.section-inner,
.cta-inner,
.footer-inner {
  margin: 0 auto;
  max-width: var(--max);
  position: relative;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  margin: 0 0 1rem;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.08;
  margin: 0;
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(2.6rem, 5.3vw, 4.9rem);
  letter-spacing: 0;
  max-width: 820px;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.85rem, 3.4vw, 2.7rem);
  letter-spacing: 0;
  max-width: 900px;
}

h3 {
  font-size: 1.18rem;
}

.lead {
  color: var(--text-muted);
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  margin: 1.25rem 0 0;
  max-width: 720px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn {
  align-items: center;
  border: 1px solid var(--border-strong);
  display: inline-flex;
  font-size: 0.79rem;
  font-weight: 700;
  justify-content: center;
  min-height: 48px;
  min-width: 0;
  letter-spacing: 0.16em;
  overflow-wrap: anywhere;
  padding: 0.82rem 1.35rem;
  text-align: center;
  text-transform: uppercase;
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent-strong) 0%, var(--accent) 100%);
  border-color: var(--accent);
  color: #111;
}

[data-theme="light"] .btn-primary {
  background: linear-gradient(180deg, var(--accent-strong) 0%, var(--accent) 100%);
  border-color: var(--accent);
  color: #111;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
}

.btn:hover {
  transform: translateY(-1px);
}

.stat-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(4, minmax(170px, 1fr));
  margin-top: 2.2rem;
  max-width: 100%;
}

.stat-card,
.info-card,
.app-card,
.benefit-card,
.spec-card,
.variant-card,
.faq-item {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 150%),
    rgba(10, 10, 10, 0.84);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

[data-theme="light"] .stat-card,
[data-theme="light"] .info-card,
[data-theme="light"] .app-card,
[data-theme="light"] .benefit-card,
[data-theme="light"] .spec-card,
[data-theme="light"] .variant-card,
[data-theme="light"] .faq-item,
[data-theme="light"] .tabs,
[data-theme="light"] .comparison-wrap,
[data-theme="light"] .projection-diagram {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(245, 241, 233, 0.94));
}

.stat-card {
  min-height: 86px;
  min-width: 0;
  overflow: hidden;
  padding: 1rem;
}

.stat-value {
  color: var(--accent);
  display: block;
  font-size: clamp(0.98rem, 1.15vw, 1.15rem);
  font-weight: 900;
  line-height: 1.12;
  hyphens: auto;
  overflow-wrap: break-word;
  white-space: normal;
  word-break: normal;
}

.stat-label {
  color: var(--text-soft);
  display: block;
  font-size: 0.8rem;
  margin-top: 0.4rem;
  hyphens: auto;
  overflow-wrap: break-word;
  text-transform: uppercase;
}

.hero-visual {
  background: #000000;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

[data-theme="light"] .hero-visual {
  background: #ffffff;
}

.hero-visual img {
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: clamp(1rem, 3vw, 2.5rem);
  width: 100%;
}

.product-image-light {
  display: none;
}

.product-image-dark {
  display: block;
}

[data-theme="light"] .product-image-light {
  display: block;
}

[data-theme="light"] .product-image-dark {
  display: none;
}

.visual-caption {
  align-items: center;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  display: flex;
  font-size: 0.82rem;
  font-weight: 800;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  text-transform: uppercase;
}

.visual-caption span:last-child {
  color: var(--accent);
}

.section {
  border-top: 1px solid var(--border);
}

.section-heading {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.55fr);
  margin-bottom: 2.2rem;
}

.section-heading p {
  color: var(--text-muted);
  margin: 0;
}

.card-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.app-card,
.benefit-card,
.variant-card,
.faq-item,
.decision-card {
  min-width: 0;
  overflow-wrap: anywhere;
  padding: 1.25rem;
}

.info-card::before,
.benefit-card::before,
.app-card::before {
  background: var(--accent);
  content: "";
  display: block;
  height: 3px;
  margin-bottom: 1rem;
  width: 42px;
}

.info-card p,
.benefit-card p,
.faq-item p,
.variant-card p,
.decision-card p {
  color: var(--text-muted);
  margin: 0.65rem 0 0;
}

.overview-grid {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 0.85fr) minmax(300px, 1.15fr);
}

.copy-block {
  color: var(--text-muted);
  font-size: 1.04rem;
}

.copy-block p {
  margin: 0 0 1rem;
}

.gallery {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gallery figure {
  background: #000000;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 0;
  min-width: 0;
  overflow: hidden;
}

[data-theme="light"] .gallery figure {
  background: #ffffff;
}

.gallery img {
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: 1.2rem;
  width: 100%;
}

.gallery figcaption {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 800;
  padding: 0.75rem;
  text-transform: uppercase;
}

.tabs {
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--bg) 85%, var(--surface)));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.tab-list {
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
}

.tab-button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  flex: 0 0 auto;
  font-size: 0.86rem;
  font-weight: 800;
  min-height: 42px;
  min-width: 0;
  overflow-wrap: anywhere;
  padding: 0.6rem 0.85rem;
  text-transform: uppercase;
}

.tab-button[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #111;
}

.tab-panel {
  padding: 1.5rem 0.25rem 0.25rem;
}

.tab-panel[hidden] {
  display: none;
}

.application-showcase {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 9%, transparent), transparent 42rem),
    var(--bg-soft);
}

[data-theme="light"] .application-showcase {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent 42rem),
    linear-gradient(180deg, #ffffff, var(--bg-soft));
}

.application-tabs {
  background: linear-gradient(180deg, var(--surface), color-mix(in srgb, var(--bg) 88%, var(--surface)));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(0.75rem, 1.5vw, 1.25rem);
}

[data-theme="light"] .application-tabs {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 241, 233, 0.96));
}

.application-tab-list {
  margin-bottom: 1rem;
}

.application-panel {
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  padding: 0;
}

.application-panel:not([hidden]) {
  display: grid;
}

.application-figure {
  background: #050505;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.32);
  margin: 0;
  overflow: hidden;
}

[data-theme="light"] .application-figure {
  background: #ffffff;
  box-shadow: 0 18px 44px rgba(52, 44, 32, 0.12);
}

.application-figure img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
}

.application-copy {
  align-self: stretch;
  background: color-mix(in srgb, var(--bg-elevated) 78%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: clamp(1rem, 2vw, 1.4rem);
}

[data-theme="light"] .application-copy {
  background: rgba(255, 255, 255, 0.78);
}

.application-copy h3 {
  color: var(--text);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.application-copy p {
  color: var(--text-muted);
  margin: 0.8rem 0 0;
}

.tab-panel-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 0.8fr) minmax(260px, 1fr);
}

.check-list,
.compact-list {
  display: grid;
  gap: 0.7rem;
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.check-list li,
.compact-list li {
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0 0 0.7rem 1.25rem;
  position: relative;
}

.check-list li::before,
.compact-list li::before {
  background: var(--accent);
  content: "";
  height: 7px;
  left: 0;
  position: absolute;
  top: 0.55rem;
  width: 7px;
}

.projection-diagram {
  background: #000000;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

[data-theme="light"] .projection-diagram {
  background: #ffffff;
}

.projection-diagram img {
  background: transparent;
  border-radius: var(--radius);
  filter: invert(0.92) hue-rotate(180deg) contrast(0.94);
  width: 100%;
}

[data-theme="light"] .projection-diagram img {
  filter: none;
}

.app-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.app-card {
  min-height: 132px;
}

.comparison-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow-x: auto;
}

.comparison-table,
.spec-table {
  border-collapse: collapse;
  min-width: 720px;
  width: 100%;
}

.spec-table {
  table-layout: fixed;
}

.comparison-table th,
.comparison-table td,
.spec-table th,
.spec-table td {
  border-bottom: 1px solid var(--border);
  overflow-wrap: break-word;
  padding: 1rem;
  text-align: left;
  vertical-align: top;
}

.comparison-table th,
.spec-table th {
  background: var(--surface);
  color: var(--text);
  font-size: 0.84rem;
  text-transform: uppercase;
}

.spec-table th {
  font-size: 0.78rem;
  line-height: 1.55;
  overflow-wrap: normal;
  width: 32%;
  word-break: normal;
}

.comparison-table td,
.spec-table td {
  color: var(--text-muted);
}

.comparison-table tr:last-child td,
.spec-table tr:last-child td {
  border-bottom: 0;
}

.benefit-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.spec-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.spec-card {
  overflow: hidden;
}

.spec-card h3 {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.1rem;
}

.faq-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.faq-item h3 {
  font-size: 1.02rem;
}

.cta-section {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 20%, transparent), transparent 36rem),
    var(--bg);
  border-top: 1px solid var(--border);
}

.cta-inner {
  align-items: end;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.cta-inner p {
  color: var(--text-muted);
  margin: 1rem 0 0;
  max-width: 760px;
}

.site-footer {
  background: #030303;
  border-top: 1px solid var(--border);
  color: #f4f0e8;
  padding: 2.5rem 1.25rem;
}

[data-theme="light"] .site-footer {
  background:
    radial-gradient(circle at top right, rgba(241, 199, 21, 0.12), transparent 26%),
    linear-gradient(180deg, #faf9f6 0%, #efede7 100%);
  color: var(--text);
}

.footer-inner {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr) minmax(260px, auto);
}

.footer-inner p {
  color: #b9b0a2;
  margin: 0.2rem 0;
}

[data-theme="light"] .footer-inner p,
[data-theme="light"] .footer-inner a {
  color: var(--text-muted);
}

.skip-link {
  background: var(--accent);
  color: #111;
  font-weight: 800;
  left: 1rem;
  padding: 0.7rem 1rem;
  position: fixed;
  top: 1rem;
  transform: translateY(-140%);
  z-index: 100;
}

.skip-link:focus {
  transform: translateY(0);
}

.text-link {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 0.25em;
}

.two-col-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.method-note {
  border-left: 3px solid var(--accent);
  color: var(--text-muted);
  margin: 1.25rem 0 0;
  padding: 0 0 0 1rem;
}

.decision-card {
  background: var(--accent-soft);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.pill-list li {
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 800;
  padding: 0.5rem 0.7rem;
  text-transform: uppercase;
}

.root-choice {
  align-items: stretch;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
  max-width: 760px;
}

.root-choice a {
  border: 1px solid var(--border-strong);
  display: block;
  padding: 1.25rem;
}

.root-choice strong {
  color: var(--accent);
  display: block;
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.footer-brand {
  color: #f4f0e8;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

[data-theme="light"] .footer-brand {
  color: #000000;
}

.footer-logo {
  height: auto;
  margin-bottom: 1.25rem;
  max-width: 190px;
  width: 100%;
}

.footer-logo.logo-dark {
  display: none;
}

.footer-logo.logo-light {
  display: block;
}

[data-theme="light"] .footer-logo.logo-dark {
  display: block;
}

[data-theme="light"] .footer-logo.logo-light {
  display: none;
}

@media (max-width: 1180px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    display: none;
    flex-direction: column;
    inset: 88px 0 auto 0;
    padding: 1rem 1.25rem 1.4rem;
    position: fixed;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a,
  .nav button,
  .language-link {
    justify-content: flex-start;
    width: 100%;
  }

  .hero-grid,
  .overview-grid,
  .section-heading,
  .application-panel,
  .tab-panel-grid,
  .cta-inner,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .stat-grid,
  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid,
  .benefit-grid,
  .two-col-grid,
  .root-choice {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .hero,
  .section,
  .cta-section {
    padding: 4rem 1rem;
  }

  .nav-wrap {
    padding: 0 1rem;
  }

  .brand-sub {
    display: none;
  }

  .stat-grid,
  .app-grid,
  .spec-grid,
  .faq-grid,
  .gallery {
    grid-template-columns: 1fr;
  }

  .button-row {
    align-items: stretch;
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}