:root {
  --ink: #f7f9ff;
  --muted: #b7c1d8;
  --paper: #070b16;
  --surface: #101827;
  --white: #ffffff;
  --teal: #3157d5;
  --coral: #88a2ff;
  --yellow: #f3c64f;
  --line: rgba(255, 255, 255, 0.13);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --header-bg: rgba(7, 11, 22, 0.9);
  --card-bg: #111b2e;
}

body[data-theme="light"] {
  --ink: #111827;
  --muted: #5e6676;
  --paper: #f4f7ff;
  --surface: #ffffff;
  --teal: #213f9f;
  --coral: #3157d5;
  --yellow: #f3c64f;
  --line: rgba(17, 24, 39, 0.13);
  --shadow: 0 24px 70px rgba(31, 49, 98, 0.16);
  --header-bg: rgba(244, 247, 255, 0.92);
  --card-bg: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  transition: background 180ms ease, color 180ms ease;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 800;
}

.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--surface);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.theme-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 4px rgba(136, 162, 255, 0.18);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 32px);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: calc(100svh - 78px);
  padding: clamp(42px, 7vw, 88px) clamp(20px, 5vw, 72px) 48px;
}

.hero-copy {
  max-width: 650px;
}

.hero-logo {
  width: clamp(92px, 12vw, 136px);
  height: clamp(92px, 12vw, 136px);
  object-fit: contain;
  margin-bottom: 22px;
  border-radius: 50%;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(4rem, 11vw, 8.5rem);
  line-height: 0.86;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.18rem;
}

.hero-text {
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(1.06rem, 1.8vw, 1.28rem);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  cursor: pointer;
}

.button.primary {
  color: var(--white);
  background: var(--teal);
}

.button.primary:hover {
  background: #2448bd;
}

.button.secondary {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--line);
}

.button.secondary:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.hero-media {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  background: var(--surface);
}

.trust-strip span {
  min-height: 78px;
  display: grid;
  place-items: center;
  padding: 18px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-weight: 700;
  text-align: center;
}

.trust-strip span:last-child {
  border-right: 0;
}

.section,
.feature-band,
.price-band {
  padding: clamp(58px, 8vw, 100px) clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.catalog-group {
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.catalog-group h3 {
  margin-bottom: 18px;
}

.catalog-group ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-weight: 700;
}

.catalog-group li {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.catalog-group li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.price-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: clamp(24px, 5vw, 70px);
  align-items: center;
  background: linear-gradient(135deg, #091027 0%, var(--teal) 100%);
  color: var(--white);
}

.price-copy p:not(.eyebrow) {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
  line-height: 1.7;
}

.price-card {
  padding: clamp(22px, 4vw, 34px);
  background: var(--surface);
  border-radius: 8px;
  color: var(--ink);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.18);
}

.price-card span {
  color: var(--coral);
  font-weight: 800;
  text-transform: uppercase;
}

.price-card strong {
  display: block;
  margin: 12px 0 8px;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.95;
}

.price-card p {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.portfolio-grid figure {
  margin: 0;
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.portfolio-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.portfolio-grid figcaption {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 12px;
  padding: 16px 18px;
  color: var(--muted);
  font-weight: 800;
}

.portfolio-grid figcaption a {
  color: var(--coral);
  line-height: 1.35;
}

.portfolio-grid figcaption a:hover {
  color: var(--teal);
}

.service-card,
.process-step {
  min-height: 250px;
  padding: 24px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-card p,
.process-step p,
.site-footer p {
  color: var(--muted);
  line-height: 1.65;
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 34px;
  margin-bottom: 42px;
  color: var(--teal);
  background: rgba(49, 87, 213, 0.14);
  border-radius: 6px;
  font-weight: 800;
}

.feature-band {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(24px, 6vw, 76px);
  align-items: center;
  color: var(--white);
  background: linear-gradient(135deg, #060914 0%, #15285f 100%);
}

.feature-band h2 {
  max-width: 880px;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.78);
  font-weight: 700;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 12px;
  background: var(--yellow);
  border-radius: 50%;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.process-step strong {
  display: block;
  margin-bottom: 38px;
  color: var(--coral);
  font-size: 2.4rem;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 13px 14px;
  color: var(--ink);
  background: var(--surface);
  font: inherit;
}

textarea {
  resize: vertical;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px, 5vw, 72px);
  color: var(--white);
  background: var(--teal);
}

.site-footer p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.76);
}

.site-footer a {
  font-weight: 800;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

@media (max-width: 980px) {
  .hero,
  .feature-band,
  .price-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .services-grid,
  .catalog-grid,
  .portfolio-grid,
  .trust-strip {
    grid-template-columns: repeat(2, 1fr);
  }

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

}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 0.88rem;
  }

  h1 {
    font-size: clamp(3.25rem, 18vw, 5.4rem);
  }

  .services-grid,
  .catalog-grid,
  .portfolio-grid,
  .trust-strip {
    grid-template-columns: 1fr;
  }

  .portfolio-grid figcaption {
    align-items: flex-start;
    flex-direction: column;
  }

  .trust-strip span {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

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