:root {
  --ink: #17212f;
  --muted: #5b6472;
  --line: #dfe4ea;
  --paper: #ffffff;
  --soft: #f4f6f8;
  --navy: #12365a;
  --navy-2: #0d2844;
  --orange: #d96f18;
  --orange-2: #f08a24;
  --green: #2d6f58;
  --steel: #586c82;
  --shadow: 0 18px 42px rgba(23, 33, 47, 0.12);
  --radius: 8px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 30;
  background: var(--ink);
  color: #fff;
  padding: 10px 14px;
  border-radius: 4px;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(223, 228, 234, 0.9);
  backdrop-filter: blur(14px);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-weight: 800;
  font-size: 0.96rem;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.76rem;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.primary-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 10px 9px;
  border-radius: 4px;
}

.primary-nav a:hover,
.primary-nav a.is-active {
  color: var(--navy);
  background: #eef4f9;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 4px;
  padding: 9px 12px;
  font-weight: 800;
}

.hero {
  color: #fff;
  background-image:
    linear-gradient(90deg, rgba(13, 40, 68, 0.9), rgba(13, 40, 68, 0.54), rgba(23, 33, 47, 0.44)),
    url("/assets/hero-construction.png");
  background-size: cover;
  background-position: center;
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: min(590px, 58vh);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 56px 22px 44px;
}

.eyebrow {
  margin: 0 0 16px;
  color: #ffd9b0;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.2rem, 4.7vw, 3.95rem);
  line-height: 1.04;
  font-weight: 900;
}

.hero p {
  max-width: 680px;
  margin: 22px 0 0;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  color: #eef5f9;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 800;
}

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

.btn-primary:hover {
  background: #bf5f10;
}

.btn-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.68);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-light {
  color: var(--navy);
  background: #fff;
  border-color: var(--line);
}

.btn-light:hover {
  background: #eef4f9;
}

.section {
  padding: 78px 22px;
}

.section-soft {
  background: var(--soft);
}

.section-dark {
  background: var(--navy-2);
  color: #fff;
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  line-height: 1.15;
}

.section-heading p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

.section-dark .section-heading p,
.section-dark .muted {
  color: #cdd9e3;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

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

.card,
.fact,
.project-card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 8px 24px rgba(23, 33, 47, 0.06);
}

.card h3,
.project-card h3,
.fact h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}

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

.fact {
  border-top: 4px solid var(--orange);
  min-height: 126px;
}

.fact-number {
  display: block;
  color: var(--navy);
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 10px;
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: 38px;
  align-items: start;
}

.info-panel {
  border-left: 5px solid var(--orange);
  background: #fff;
  padding: 26px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-panel h3 {
  margin-top: 0;
}

.info-list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.info-row {
  display: grid;
  grid-template-columns: minmax(130px, 0.38fr) 1fr;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.info-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.info-label {
  color: var(--steel);
  font-weight: 800;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.check-list li {
  position: relative;
  padding-left: 30px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.46em;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: inset 0 0 0 4px #fff, 0 0 0 1px var(--orange);
}

.callout {
  padding: 34px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.callout h2,
.callout h3 {
  margin-top: 0;
}

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

.tool-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.58fr);
  gap: 28px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px;
}

.device-visual {
  min-height: 280px;
  border-radius: var(--radius);
  background:
    linear-gradient(145deg, rgba(217, 111, 24, 0.14), rgba(45, 111, 88, 0.12)),
    #eef4f9;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  padding: 24px;
}

.phone-frame {
  width: 180px;
  min-height: 236px;
  border: 10px solid #182a3c;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 32px rgba(23, 33, 47, 0.18);
  padding: 18px;
}

.phone-line {
  height: 10px;
  background: #dfe4ea;
  border-radius: 3px;
  margin-bottom: 12px;
}

.phone-line.short {
  width: 58%;
  background: var(--orange);
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  margin-top: 20px;
}

.qr-grid span {
  aspect-ratio: 1;
  background: #17212f;
}

.qr-grid span:nth-child(2n) {
  background: #dfe4ea;
}

.page-hero {
  background:
    linear-gradient(90deg, rgba(18, 54, 90, 0.95), rgba(18, 54, 90, 0.78)),
    url("/assets/hero-construction.png");
  background-size: cover;
  background-position: center 44%;
  color: #fff;
}

.page-hero-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 86px 22px 70px;
}

.page-hero p {
  max-width: 720px;
  margin: 18px 0 0;
  color: #eaf1f7;
  font-size: 1.08rem;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

th,
td {
  padding: 15px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #eef4f9;
  color: var(--navy);
}

tr:last-child td {
  border-bottom: 0;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 22px;
}

.faq-item h3 {
  margin: 0 0 8px;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
}

.contact-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--navy);
  color: #fff;
}

.contact-strip p {
  margin: 4px 0 0;
  color: #dce7ef;
}

.site-footer {
  background: #111b27;
  color: #fff;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  padding: 48px 22px;
}

.footer-title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: 900;
}

.footer-inner p,
.footer-inner a {
  color: #cad4de;
}

.footer-inner a:hover {
  color: #fff;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 22px;
  text-align: center;
  color: #aeb9c4;
  font-size: 0.9rem;
}

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

@media (max-width: 980px) {
  .menu-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: fixed;
    inset: 72px 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px 22px 24px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

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

  .primary-nav a {
    padding: 13px 10px;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-col,
  .tool-band,
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .header-inner {
    padding: 0 16px;
  }

  .brand-sub {
    display: none;
  }

  .hero-inner {
    min-height: 62vh;
    padding: 58px 18px 48px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2rem, 9.6vw, 3rem);
  }

  .section,
  .page-hero-inner {
    padding-left: 18px;
    padding-right: 18px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .info-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

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

  .btn {
    width: 100%;
  }

  .callout,
  .tool-band {
    padding: 24px;
  }
}