:root {
  --ink: #101317;
  --muted: #66707d;
  --paper: #f7f4ee;
  --surface: #ffffff;
  --line: rgba(16, 19, 23, 0.12);
  --steel: #29333d;
  --red: #c93b32;
  --cyan: #17a9b8;
  --gold: #c99b43;
  --shadow: 0 24px 70px rgba(16, 19, 23, 0.16);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 56px);
  color: #fff;
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(247, 244, 238, 0.92);
  box-shadow: 0 10px 40px rgba(16, 19, 23, 0.12);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.1;
}

.brand small {
  color: currentColor;
  font-size: 0.73rem;
  opacity: 0.72;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  opacity: 0.84;
}

.site-nav a:hover {
  opacity: 1;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: inherit;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  overflow: hidden;
  color: #fff;
}

.hero-media,
.hero-overlay,
.hero-content {
  grid-area: 1 / 1;
}

.hero-media img {
  width: 100%;
  height: 100%;
  min-height: 92vh;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(7, 9, 11, 0.9), rgba(7, 9, 11, 0.58) 46%, rgba(7, 9, 11, 0.18)),
    linear-gradient(180deg, rgba(7, 9, 11, 0.52), rgba(7, 9, 11, 0.12) 44%, rgba(7, 9, 11, 0.72));
}

.hero-content {
  position: relative;
  align-self: end;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 136px 0 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 7vw, 6.7rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.16;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.08rem, 1.8vw, 1.28rem);
}

.hero-actions,
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions {
  margin: 30px 0 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 13px 20px;
  font-weight: 850;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #fff;
  background: var(--red);
  box-shadow: 0 14px 32px rgba(201, 59, 50, 0.28);
}

.button.secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.1);
}

.hero-stats {
  margin: 0;
}

.hero-stats div {
  min-width: min(220px, 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  padding-top: 14px;
}

.hero-stats dt {
  font-size: 1.45rem;
  font-weight: 900;
}

.hero-stats dd {
  margin: 2px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.trust-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
  color: #fff;
}

.trust-band span {
  min-height: 72px;
  display: grid;
  place-items: center;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  padding: 16px;
  font-weight: 850;
  text-align: center;
}

.section,
.capability-strip,
.showcase,
.quality-band,
.quote-section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(72px, 9vw, 124px) 0;
}

.intro {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(280px, 1fr);
  gap: clamp(32px, 7vw, 90px);
  align-items: start;
}

.intro p:last-child {
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.service-card {
  min-height: 268px;
  padding: 28px;
  background: var(--surface);
}

.service-card p,
.work-item p,
.timeline p,
.material-feature p,
.faq p,
.quote-copy p {
  color: var(--muted);
}

.card-number {
  display: inline-block;
  margin-bottom: 50px;
  color: var(--red);
  font-weight: 900;
}

.capability-strip {
  width: 100%;
  max-width: none;
  padding-left: max(18px, calc((100% - 1180px) / 2));
  padding-right: max(18px, calc((100% - 1180px) / 2));
  background: #e7ecef;
}

.material-board {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(320px, 1.25fr);
  gap: clamp(24px, 5vw, 60px);
  align-items: stretch;
}

.material-feature {
  padding: 32px;
  border-radius: var(--radius);
  color: #fff;
  background:
    linear-gradient(145deg, rgba(23, 169, 184, 0.26), transparent 50%),
    var(--steel);
}

.material-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(16, 19, 23, 0.1);
  border-radius: var(--radius);
  background: rgba(16, 19, 23, 0.1);
  list-style: none;
}

.material-list li {
  display: grid;
  gap: 6px;
  min-height: 118px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.78);
}

.material-list strong {
  color: var(--ink);
}

.material-list span {
  color: var(--muted);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.timeline article {
  position: relative;
  min-height: 220px;
  border-top: 3px solid var(--red);
  padding: 22px 0 0;
}

.timeline span {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--cyan);
  font-weight: 900;
}

.showcase {
  width: 100%;
  max-width: none;
  padding-left: max(18px, calc((100% - 1180px) / 2));
  padding-right: max(18px, calc((100% - 1180px) / 2));
  background: var(--ink);
  color: #fff;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.work-item {
  min-height: 440px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 26px;
  background:
    radial-gradient(circle at 50% 24%, rgba(23, 169, 184, 0.22), transparent 34%),
    linear-gradient(180deg, #2d3741, #15191f);
}

.part-visual {
  position: relative;
  height: 220px;
  margin-bottom: 30px;
}

.part-visual::before,
.part-visual::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%) skewY(-7deg);
  border-radius: 8px;
  box-shadow: inset -18px -20px 26px rgba(0, 0, 0, 0.2), 0 30px 50px rgba(0, 0, 0, 0.34);
}

.fixture .part-visual::before {
  top: 46px;
  width: 210px;
  height: 112px;
  background: linear-gradient(135deg, #d9dee1, #7f8a92);
  clip-path: polygon(0 22%, 100% 0, 88% 80%, 10% 100%);
}

.fixture .part-visual::after {
  top: 82px;
  width: 82px;
  height: 44px;
  background: var(--red);
}

.enclosure .part-visual::before {
  top: 34px;
  width: 214px;
  height: 136px;
  background: linear-gradient(145deg, #f2f5f6, #8a98a2);
}

.enclosure .part-visual::after {
  top: 74px;
  width: 122px;
  height: 52px;
  border: 10px solid #232b33;
  background: transparent;
}

.product .part-visual::before {
  top: 32px;
  width: 148px;
  height: 148px;
  border-radius: 34px;
  background: linear-gradient(145deg, #21b8c8, #0c6570);
}

.product .part-visual::after {
  top: 75px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #eef3f4;
}

.quality-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(300px, 1fr);
  gap: clamp(30px, 6vw, 78px);
  align-items: center;
}

.quality-band ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.quality-band li {
  min-height: 86px;
  display: flex;
  align-items: center;
  border-left: 4px solid var(--cyan);
  border-radius: var(--radius);
  padding: 18px;
  background: #fff;
  box-shadow: 0 12px 36px rgba(16, 19, 23, 0.08);
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

summary {
  cursor: pointer;
  padding: 22px 24px;
  font-weight: 850;
}

details p {
  margin: 0;
  padding: 0 24px 24px;
}

.quote-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(30px, 6vw, 82px);
  align-items: start;
}

.contact-block {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  font-weight: 850;
}

.contact-block span {
  color: var(--muted);
  font-weight: 700;
}

.contact-panel {
  display: grid;
  gap: 18px;
  border-radius: var(--radius);
  padding: clamp(20px, 4vw, 34px);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.contact-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.contact-card {
  display: grid;
  gap: 8px;
  min-width: 0;
  min-height: 132px;
  align-content: center;
  border: 1px solid rgba(16, 19, 23, 0.1);
  border-radius: var(--radius);
  padding: 20px;
  background:
    linear-gradient(145deg, rgba(23, 169, 184, 0.12), transparent 52%),
    #fbfaf7;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.contact-card:hover {
  transform: translateY(-2px);
  border-color: rgba(201, 59, 50, 0.32);
  box-shadow: 0 14px 32px rgba(16, 19, 23, 0.1);
}

.contact-card span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 850;
  text-transform: uppercase;
}

.contact-card strong {
  min-width: 0;
  color: var(--ink);
  font-size: clamp(1rem, 2vw, 1.28rem);
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.quote-checklist {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.quote-checklist h3 {
  margin-bottom: 14px;
}

.quote-checklist ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.quote-checklist li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
}

.quote-checklist li::before {
  content: "";
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding: 28px clamp(18px, 4vw, 56px);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--ink);
  font-weight: 850;
}

@media (max-width: 920px) {
  .site-header {
    min-height: 70px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 8px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 12px;
  }

  .hero {
    min-height: 860px;
  }

  .hero-media img {
    min-height: 860px;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(7, 9, 11, 0.78), rgba(7, 9, 11, 0.44) 38%, rgba(7, 9, 11, 0.88)),
      linear-gradient(90deg, rgba(7, 9, 11, 0.68), rgba(7, 9, 11, 0.24));
  }

  .trust-band,
  .service-grid,
  .timeline,
  .work-grid,
  .quality-band ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro,
  .material-board,
  .quality-band,
  .quote-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .brand small {
    display: none;
  }

  .hero {
    min-height: 800px;
  }

  .hero-media img {
    min-height: 800px;
  }

  .hero-content {
    width: min(100% - 32px, 1120px);
    padding-bottom: 34px;
  }

  h1 {
    font-size: clamp(2.5rem, 14vw, 4rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .trust-band,
  .service-grid,
  .material-list,
  .timeline,
  .work-grid,
  .quality-band ul,
  .contact-actions {
    grid-template-columns: 1fr;
  }

  .trust-band span {
    min-height: 58px;
  }

  .contact-card {
    padding: 18px;
  }

  .contact-card strong {
    font-size: 1rem;
  }

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

  .card-number {
    margin-bottom: 26px;
  }

  .work-item {
    min-height: 370px;
  }

  .site-footer {
    display: grid;
  }
}