:root {
  --primary: #111827;
  --accent: #f5a623;
  --dark: #0b1220;
  --light: #f5f7fb;
  --muted: #657184;
  --white: #ffffff;
  --line: #e5e9f0;
  --shadow: 0 18px 48px rgba(12, 18, 32, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  color: var(--primary);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(229, 233, 240, 0.92);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--dark);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--dark);
  background: linear-gradient(135deg, #ffc13b, #ef8b18);
  border-radius: 8px;
  font-size: 15px;
  font-weight: 900;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: #273144;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  padding: 8px 0;
}

.site-nav a:hover {
  color: #b96500;
}

.header-call,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.header-call {
  color: var(--white);
  background: var(--primary);
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.16);
}

.header-call:hover,
.btn:hover {
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 0;
  border-radius: 8px;
  background: var(--light);
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--primary);
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero {
  min-height: calc(100vh - 78px);
  padding: 86px 0 40px;
  color: var(--white);
  background:
    linear-gradient(110deg, rgba(11, 18, 32, 0.96), rgba(17, 24, 39, 0.82)),
    url("hero-pattern.svg") center/cover no-repeat;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  align-items: center;
  gap: 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #c26b00;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow,
.why .eyebrow {
  color: #ffc13b;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 20px;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  color: var(--dark);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  color: var(--dark);
  font-size: 20px;
  line-height: 1.25;
}

.hero-copy p {
  max-width: 720px;
  color: #d7deea;
  font-size: 18px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn-accent {
  color: #15110a;
  background: var(--accent);
  box-shadow: 0 14px 30px rgba(245, 166, 35, 0.25);
}

.btn-outline {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.34);
}

.btn-ghost {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.btn-dark {
  color: var(--white);
  background: var(--primary);
}

.btn-light {
  color: var(--primary);
  background: var(--light);
}

.hero-panel {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.09);
  box-shadow: var(--shadow);
}

.panel-top {
  display: grid;
  gap: 10px;
  padding: 26px;
  border-radius: 8px;
  color: var(--dark);
  background: var(--white);
}

.panel-top span {
  color: #b96500;
  font-size: 70px;
  font-weight: 900;
  line-height: 0.95;
}

.panel-top p {
  margin: 0;
  color: #344155;
  font-weight: 800;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 14px;
}

.info-grid div {
  min-height: 86px;
  padding: 16px;
  border-radius: 8px;
  color: #fff7e8;
  background: rgba(255, 255, 255, 0.1);
  font-weight: 800;
}

.section {
  padding: 86px 0;
}

.services,
.faq {
  background: var(--light);
}

.section-head {
  max-width: 700px;
  margin-bottom: 34px;
}

.section-head p,
.faq-grid > div > p,
.contact-grid > div > p,
.why p,
.seo-box p {
  color: var(--muted);
  font-size: 17px;
}

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

.service-card,
.project-card,
.contact-card,
.faq-item,
.seo-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 26px rgba(12, 18, 32, 0.06);
}

.service-card {
  min-height: 234px;
  padding: 24px;
  transition: transform 180ms ease, border-color 180ms ease;
}

.service-card:hover,
.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 166, 35, 0.65);
}

.service-card span {
  color: #c26b00;
  font-size: 14px;
  font-weight: 900;
}

.service-card h3 {
  margin: 12px 0 10px;
}

.service-card p,
.project-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.why {
  color: var(--white);
  background: linear-gradient(135deg, #0b1220, #1d2636);
}

.why h2,
.why h3 {
  color: var(--white);
}

.why p {
  color: #cbd5e1;
}

.why-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.check-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 17px 18px 17px 52px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  font-weight: 750;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 18px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset 0 0 0 5px #2a1e09;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  overflow: hidden;
  transition: transform 180ms ease, border-color 180ms ease;
}

.project-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--light);
}

.project-card h3 {
  margin: 0;
  padding: 18px;
  font-size: 18px;
}

.local-seo {
  background: linear-gradient(180deg, #ffffff, #f7f9fc);
}

.seo-box {
  padding: 34px;
}

.seo-box p:last-child {
  margin-bottom: 0;
}

.faq-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 42px;
  align-items: start;
}

.accordion {
  display: grid;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  position: relative;
  width: 100%;
  min-height: 64px;
  padding: 18px 54px 18px 20px;
  border: 0;
  color: var(--primary);
  background: var(--white);
  font: inherit;
  font-weight: 850;
  text-align: left;
  cursor: pointer;
}

.faq-question::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 20px;
  color: #b96500;
  font-size: 25px;
  font-weight: 800;
  transform: translateY(-50%);
}

.faq-question[aria-expanded="true"]::after {
  content: "−";
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 220ms ease;
}

.faq-answer p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

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

.contact h2 {
  color: var(--white);
}

.contact-grid > div > p {
  color: #d1d8e5;
}

.contact-card {
  display: grid;
  gap: 8px;
  padding: 28px;
  color: var(--primary);
  font-style: normal;
}

.contact-card strong {
  margin-top: 10px;
  color: #b96500;
}

.contact-card strong:first-child {
  margin-top: 0;
}

.contact-card a {
  color: var(--dark);
  font-weight: 750;
  word-break: break-word;
}

.site-footer {
  padding: 34px 0 92px;
  color: #d1d8e5;
  background: var(--dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.site-footer strong {
  color: var(--white);
  font-size: 20px;
}

.site-footer p {
  margin: 4px 0;
}

.site-footer a {
  color: var(--accent);
}

.mobile-contact {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 60;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  background: var(--dark);
  box-shadow: 0 -12px 30px rgba(12, 18, 32, 0.2);
}

.mobile-contact a {
  display: grid;
  min-height: 58px;
  place-items: center;
  color: var(--white);
  font-size: 14px;
  font-weight: 850;
}

.mobile-contact a:nth-child(2) {
  color: #101010;
  background: var(--accent);
}

@media (max-width: 1040px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-nav {
    gap: 14px;
  }
}

@media (max-width: 860px) {
  .container {
    width: min(100% - 24px, 680px);
  }

  .header-inner {
    min-height: 70px;
  }

  .brand {
    font-size: 16px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    top: 70px;
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: var(--white);
    transition: max-height 220ms ease;
  }

  .nav-open .site-nav {
    max-height: 420px;
  }

  .site-nav a {
    padding: 16px 24px;
    border-top: 1px solid var(--line);
  }

  .header-call {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 62px 0 36px;
  }

  .hero-grid,
  .why-grid,
  .faq-grid,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(38px, 12vw, 52px);
  }

  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .section {
    padding: 64px 0;
  }

  .mobile-contact {
    display: grid;
  }
}

@media (max-width: 580px) {
  .container {
    width: min(100% - 20px, 100%);
  }

  .brand {
    max-width: 238px;
    white-space: normal;
    line-height: 1.15;
  }

  .hero-actions,
  .contact-actions {
    display: grid;
  }

  .btn {
    width: 100%;
  }

  .info-grid,
  .service-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .seo-box,
  .contact-card {
    padding: 20px;
  }

  .panel-top {
    padding: 22px;
  }

  .panel-top span {
    font-size: 58px;
  }

  .service-card {
    min-height: auto;
  }
}