:root {
  --ink: #10243a;
  --ink-soft: #2a4460;
  --paper: #eef3f7;
  --paper-deep: #dce7ef;
  --mist: #f7fafc;
  --line: rgba(16, 36, 58, 0.12);
  --accent: #0f9d8a;
  --accent-deep: #0b7a6b;
  --warm: #f0a35e;
  --shadow-soft: 0 18px 40px rgba(16, 36, 58, 0.08);
  --shell: min(1120px, calc(100% - 2.5rem));
  --font-display: "Unbounded", sans-serif;
  --font-body: "Manrope", sans-serif;
  --header-h: 4.25rem;
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(15, 157, 138, 0.1), transparent 55%),
    radial-gradient(900px 500px at 100% 18%, rgba(240, 163, 94, 0.1), transparent 50%),
    linear-gradient(180deg, var(--mist), var(--paper) 38%, #e8f0f5);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-deep);
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  font-weight: 600;
}

h1 {
  font-size: clamp(2rem, 4.6vw, 3.7rem);
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.45rem);
}

h3 {
  font-size: 1.12rem;
}

p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

p:last-child {
  margin-bottom: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(14px);
  background: rgba(247, 250, 252, 0.78);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(247, 250, 252, 0.92);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--ink);
}

.brand-logo {
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 0.65rem;
  flex-shrink: 0;
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.site-nav a:hover {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 1.05rem;
  height: 2px;
  margin: 0 auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
}

.nav-toggle-lines::before {
  transform: translateY(-5px);
}

.nav-toggle-lines::after {
  transform: translateY(3px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::before {
  transform: translateY(0) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-lines::after {
  transform: translateY(-2px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: end;
  justify-items: start;
  overflow: clip;
  isolation: isolate;
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-wash {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      105deg,
      rgba(247, 250, 252, 0.94) 0%,
      rgba(247, 250, 252, 0.82) 38%,
      rgba(247, 250, 252, 0.28) 68%,
      rgba(16, 36, 58, 0.18) 100%
    ),
    linear-gradient(180deg, transparent 55%, rgba(238, 243, 247, 0.92) 100%);
}

.hero-content {
  width: var(--shell);
  max-width: 40rem;
  margin-left: max(calc((100% - var(--shell)) / 2), 1.25rem);
  margin-right: auto;
  padding: clamp(3rem, 10vh, 6rem) 0 3.5rem;
}

.hero-brand {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.hero-title {
  margin-bottom: 1rem;
}

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  max-width: 34rem;
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.7rem 1.25rem;
  border-radius: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease,
    border-color 0.2s ease;
}

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

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-primary:hover {
  background: #18324d;
  color: #fff;
}

.btn-ghost {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: rgba(16, 36, 58, 0.25);
  color: var(--ink);
}

.section {
  padding: clamp(4rem, 8vw, 6.25rem) 0;
}

.section-intro,
.section-copy {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.about-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.about-points {
  margin-top: 1.4rem;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.about-points li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  font-weight: 500;
}

.about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
}

.about-panel {
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-fact-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.about-fact-value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1;
  letter-spacing: -0.03em;
}

.about-fact-text {
  display: block;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.35;
  max-width: 16rem;
}

.catalog {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), transparent 24%),
    linear-gradient(180deg, transparent, rgba(15, 157, 138, 0.05));
}

.catalog-explorer {
  display: grid;
  gap: 1.5rem;
}

.catalog-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.catalog-tab {
  appearance: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink-soft);
  font: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.7rem 1rem;
  border-radius: 0.85rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.catalog-tab:hover {
  color: var(--ink);
  border-color: rgba(16, 36, 58, 0.22);
}

.catalog-tab.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.catalog-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: center;
  padding: 1.25rem 0 0.25rem;
  animation: panel-in 0.35s ease;
}

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

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.panel-visual svg {
  width: 100%;
  height: auto;
}

.product-list {
  margin-top: 1.1rem;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.product-list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-weight: 500;
}

.product-list li:last-child {
  border-bottom: 0;
}

.services {
  background: linear-gradient(180deg, transparent, rgba(16, 36, 58, 0.03));
}

.service-list {
  list-style: none;
  display: grid;
  gap: 0;
}

.service-item {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1rem;
  padding: 1.45rem 0;
  border-top: 1px solid var(--line);
}

.service-item:last-child {
  border-bottom: 1px solid var(--line);
}

.service-num {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-deep);
  padding-top: 0.2rem;
}

.process-track {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  counter-reset: none;
}

.process-step {
  padding-top: 1rem;
  border-top: 2px solid var(--ink);
}

.process-step strong {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: -0.02em;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem) clamp(1.75rem, 4vw, 3rem);
}

.why-block {
  padding-top: 1.15rem;
  border-top: 2px solid var(--ink);
}

.faq {
  background:
    radial-gradient(560px 260px at 0% 0%, rgba(15, 157, 138, 0.08), transparent),
    linear-gradient(180deg, rgba(255, 255, 255, 0.25), transparent);
}

.faq-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 0;
}

.faq-item {
  border-top: 1px solid var(--line);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  font-size: 1.02rem;
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  width: 1.1rem;
  height: 1.1rem;
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.faq-icon::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.faq-icon::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.faq-item.is-open .faq-icon::after {
  opacity: 0;
  transform: translateX(-50%) rotate(90deg);
}

.faq-panel {
  padding: 0 0 1.15rem;
}

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

.contacts {
  background:
    radial-gradient(600px 280px at 90% 10%, rgba(240, 163, 94, 0.16), transparent),
    linear-gradient(180deg, transparent, rgba(16, 36, 58, 0.03));
}

.contacts-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-list {
  margin: 0;
  display: grid;
  gap: 1.35rem;
}

.contact-list div {
  display: grid;
  gap: 0.25rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line);
}

.contact-list dt {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.contact-list dd {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
}

.contact-list a {
  text-decoration: none;
}

.contact-list a:hover {
  text-decoration: underline;
}

.site-footer {
  padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.footer-brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
}

.footer-inn-container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-inn {
  margin: 0.2rem 0 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.footer-note {
  margin: 0;
  font-size: 0.92rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
  transition-delay: var(--delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 900px) {
  .about-layout,
  .catalog-panel,
  .process-track,
  .why-grid,
  .faq-layout,
  .contacts-layout {
    grid-template-columns: 1fr;
  }

  .process-track {
    gap: 1rem;
  }
}

@media (max-width: 860px) {
  .hero-content {
    max-width: 100%;
    margin-inline: auto;
    padding-bottom: 2.5rem;
  }

  .hero-wash {
    background:
      linear-gradient(
        180deg,
        rgba(247, 250, 252, 0.55) 0%,
        rgba(247, 250, 252, 0.78) 42%,
        rgba(238, 243, 247, 0.94) 100%
      );
  }

  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .site-nav {
    position: absolute;
    top: calc(var(--header-h) - 1px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.25rem 1rem;
    background: rgba(247, 250, 252, 0.97);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(14px);
  }

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

  .site-nav a {
    padding: 0.85rem 0.2rem;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 560px) {
  :root {
    --shell: min(1120px, calc(100% - 1.5rem));
  }

  .service-item {
    grid-template-columns: 3rem 1fr;
  }

  .catalog-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-actions {
    width: 100%;
  }

  .btn {
    flex: 1 1 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .catalog-panel {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}