:root {
  --bg: #191919;
  --bg-soft: #1f1f1f;
  --surface: #252525;
  --surface-strong: #303030;
  --text: #f1f1f1;
  --muted: #a6a6a6;
  --accent: #d0d0d0;
  --accent-strong: #ffffff;
  --border: #3a3a3a;
  --shadow-sm: 0 10px 35px rgba(0, 0, 0, 0.24);
  --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.34);
  --button-bg: #f1f1f1;
  --button-bg-hover: #ffffff;
  --button-text: #191919;
  --button-border: rgba(255,255,255,0.14);
  --scroll-track: var(--surface);
  --scroll-thumb: #777777;
  --scroll-thumb-hover: #a6a6a6;
}

body.light,
html.light {
  --bg: #f6f6f5;
  --bg-soft: #f2f2f1;
  --surface: #ffffff;
  --surface-strong: #f7f7f7;
  --text: #111827;
  --muted: #4b5563;
  --accent: #6b7280;
  --accent-strong: #374151;
  --border: #e6e6e6;
  --shadow-sm: 0 6px 18px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 20px 40px rgba(16, 24, 40, 0.08);
  --button-bg: #e6e7eb;
  --button-bg-hover: #d1d5db;
  --button-text: #111827;
  --button-border: rgba(16,24,40,0.06);
  --scroll-track: var(--surface);
  --scroll-thumb: #cfd8dc;
  --scroll-thumb-hover: #bfc9cf;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--scroll-thumb) var(--scroll-track);
  scrollbar-width: thin;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 220ms ease, color 220ms ease;
  scrollbar-color: var(--scroll-thumb) var(--scroll-track);
  scrollbar-width: thin;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 10px;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track {
  background: var(--scroll-track);
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb {
  background: var(--scroll-thumb);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: content-box;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover {
  background: var(--scroll-thumb-hover);
}

html::-webkit-scrollbar-corner,
body::-webkit-scrollbar-corner {
  background: var(--scroll-track);
}

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

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

.container {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(25,25,25,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
body.light .site-header {
  background: rgba(245, 247, 251, 0.9);
  box-shadow: 0 4px 12px rgba(16,24,40,0.03);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.3rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 0.95rem;
}

.brand-text {
  color: var(--text);
}

.brand-accent {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--muted);
  margin-left: auto;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.site-nav .nav-link-button {
  margin-left: 1rem;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
  transition: background 180ms ease, border-color 180ms ease;
}

.site-nav .nav-link-button {
  padding: 0.55rem 0.95rem;
  margin-right: 1rem;
}

.site-nav .nav-link-button:hover,
.site-nav .nav-link-button:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
}

.site-nav .nav-link--right {
  margin-left: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.5rem;
}

.icon-btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 999px;
  padding: 0.42rem 0.66rem;
  cursor: pointer;
  font: inherit;
  min-width: 2.2rem;
  min-height: 2.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  border-color: var(--accent);
  background: var(--surface-strong);
}

.icon-btn svg {
  width: 0.95rem;
  height: 0.95rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 0.2rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
}

.hero {
  padding: 5rem 0 3rem;
  scroll-margin-top: 5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
  max-width: 960px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 0.9rem;
  opacity: 0.96;
}

.hero h1,
.section h2 {
  font-size: clamp(2.25rem, 4vw, 3.6rem);
  line-height: 1.05;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.lead,
.section-copy {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 1.6rem;
  max-width: 70ch;
}

.hero-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.2rem;
  border-radius: 8px;
  border: 1px solid var(--button-border);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  min-width: 160px;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(16, 52, 97, 0.16);
}

.btn-accent {
  background: var(--button-bg);
  color: var(--button-text);
}

.btn-accent:hover,
.btn-accent:focus-visible {
  background: var(--button-bg-hover);
}

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

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(0, 0, 0, 0.04);
  border-color: var(--accent);
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.8rem;
  color: var(--muted);
}

.hero-points li {
  padding-left: 1.15rem;
  position: relative;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
}

.service-card,
.contact-form,
.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.panel-list p,
.service-card p,
.text-block p,
.contact-form p,
.contact-form span {
  color: var(--muted);
}

.panel-list p,
.service-card p,
.text-block p,
.contact-form p,
.contact-form span {
  color: var(--muted);
}

.section {
  padding: 4rem 0;
}

.section.intro {
  padding-top: 3.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.section.intro .text-block {
  max-width: 58ch;
}

.section.intro h2 {
  font-size: clamp(2.25rem, 3.5vw, 3.4rem);
  max-width: 60ch;
}

.text-block {
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2.75rem 3.5rem;
  margin-top: 2rem;
}

.service-card {
  position: relative;
  padding: 1.5rem 0 1.75rem;
  border: 0;
  border-top: 2px solid var(--accent);
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.card-index {
  display: block;
  margin-bottom: 1.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent);
}

.service-card h3 {
  margin-bottom: 0.65rem;
  font-size: 1.35rem;
}

.service-card p {
  max-width: 38ch;
  margin-bottom: 0;
}

.contact-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.contact-form {
  padding: 1.5rem;
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
}

.contact-form input,
.contact-form textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-strong);
  color: var(--text);
  padding: 0.75rem 0.9rem;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 1px solid rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.12);
}

.catalog-page {
  padding: 2.25rem 0 4.5rem;
}

.page-intro {
  padding-top: 1rem;
  padding-bottom: 1.25rem;
}

.page-intro h1 {
  max-width: 760px;
}

.catalog-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-bottom: 3rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.catalog-summary div {
  display: grid;
  gap: 0.35rem;
  padding: 1.1rem 1.2rem;
  background: transparent;
  border-right: 1px solid var(--border);
}

.catalog-summary div:last-child {
  border-right: 0;
}

.catalog-summary strong {
  font-size: 0.9rem;
  color: var(--text);
}

.catalog-summary span {
  color: var(--muted);
  font-size: 0.88rem;
}

.catalog-toolbar {
  padding-top: 0.35rem;
  padding-bottom: 1.25rem;
}

.search-label {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  max-width: 420px;
}

.search-label input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  padding: 0.85rem 0.95rem;
  font: inherit;
}

.catalog-sections {
  display: grid;
  gap: 2.25rem;
}

.catalog-section {
  display: grid;
  gap: 1rem;
}

.section-heading h2 {
  margin: 0;
  font-size: 1.35rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.product-card {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 0;
  background: var(--surface);
  border-radius: 0;
  box-shadow: none;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.04), transparent 70%);
  pointer-events: none;
}

.product-card .card-image {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--surface-strong);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.7;
  text-align: center;
}

.product-card .card-image span {
  position: relative;
  z-index: 1;
}

.product-card .card-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0.45rem;
  padding: 1rem 1rem 1.15rem;
}

.product-card .product-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.product-card .product-meta,
.product-card .product-desc {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

.product-card .product-details {
  margin-top: 0.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  opacity: 1;
}

.product-card .product-details span {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.6rem;
  border-radius: 2px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  font-size: 0.78rem;
}

.empty-state {
  color: var(--muted);
  padding-top: 1rem;
}

.site-footer {
  padding: 1.5rem 0 2rem;
  color: var(--muted);
}

.footer-shell {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .hero-grid,
  .grid-2,
  .contact-shell {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .nav-shell {
    position: relative;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 4.3rem;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    width: min(260px, calc(100vw - 2rem));
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
  }

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

  .header-actions {
    margin-left: 0;
  }

  .hero {
    padding-top: 3.4rem;
  }

  .panel-stats {
    grid-template-columns: 1fr;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .catalog-summary {
    grid-template-columns: 1fr;
    gap: 1px;
  }

  .footer-shell {
    flex-direction: column;
  }
}