:root {
  --color-white: #ffffff;
  --color-ink: #171a1d;
  --color-charcoal: #24282d;
  --color-muted: #687078;
  --color-soft: #f4f5f3;
  --color-line: #e2e4e1;
  --color-copper: #b98755;
  --color-copper-dark: #8d633b;
  --color-whatsapp: #1f9d60;
  --font-main: "Inter", Arial, sans-serif;
  --container: 1160px;
  --section-space: 96px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
  --space-xl: 48px;
  --radius: 8px;
  --shadow-soft: 0 24px 70px rgba(23, 26, 29, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-white);
  font-family: var(--font-main);
  line-height: 1.6;
}

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

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

.container {
  width: min(100% - 40px, var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  gap: var(--space-lg);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--color-charcoal);
  white-space: nowrap;
}

.brand-mark {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  color: var(--color-charcoal);
  font-size: 0.94rem;
  font-weight: 600;
}

.main-nav a {
  position: relative;
  padding: 8px 0;
}

.main-nav a::after {
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--color-copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero-section {
  overflow: hidden;
  min-height: calc(100vh - 84px);
  padding: 92px 0 76px;
  background:
    linear-gradient(120deg, rgba(244, 245, 243, 0.95) 0%, rgba(255, 255, 255, 0.96) 50%, rgba(226, 228, 225, 0.5) 100%),
    repeating-linear-gradient(90deg, rgba(36, 40, 45, 0.05) 0 1px, transparent 1px 72px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 64px;
}

.hero-content {
  max-width: 700px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-copper-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  max-width: 780px;
  color: var(--color-ink);
  font-size: clamp(2.55rem, 6vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  color: var(--color-ink);
  font-size: clamp(2rem, 3.8vw, 3.15rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  color: var(--color-charcoal);
  font-size: 1.1rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.hero-text,
.section-copy p {
  color: var(--color-muted);
  font-size: 1.08rem;
}

.hero-text {
  max-width: 650px;
  margin-bottom: 34px;
}

.primary-button,
.whatsapp-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border-radius: var(--radius);
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-button {
  color: var(--color-white);
  background: var(--color-charcoal);
  box-shadow: 0 12px 30px rgba(36, 40, 45, 0.18);
}

.primary-button:hover,
.primary-button:focus-visible,
.whatsapp-button:hover,
.whatsapp-button:focus-visible {
  transform: translateY(-2px);
}

.architectural-visual {
  display: flex;
  justify-content: center;
}

.visual-frame {
  position: relative;
  width: min(100%, 460px);
  aspect-ratio: 0.86;
  border: 1px solid rgba(185, 135, 85, 0.25);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.82), rgba(244, 245, 243, 0.74)),
    linear-gradient(90deg, transparent 0 95%, rgba(185, 135, 85, 0.22) 95% 100%);
  box-shadow: var(--shadow-soft);
}

.tower,
.line,
.base-line {
  position: absolute;
  display: block;
}

.tower {
  bottom: 38px;
  border: 2px solid rgba(36, 40, 45, 0.9);
  border-bottom: 0;
  background: linear-gradient(180deg, rgba(36, 40, 45, 0.92), rgba(36, 40, 45, 0.78));
}

.tower-large {
  left: 24%;
  width: 32%;
  height: 78%;
  clip-path: polygon(50% 0, 100% 19%, 100% 100%, 0 100%, 0 19%);
}

.tower-medium {
  right: 16%;
  width: 31%;
  height: 56%;
  clip-path: polygon(0 22%, 55% 0, 100% 18%, 100% 100%, 0 100%);
}

.tower-small {
  left: 10%;
  width: 30%;
  height: 34%;
  clip-path: polygon(0 25%, 100% 0, 100% 100%, 0 100%);
}

.line {
  width: 2px;
  background: rgba(255, 255, 255, 0.78);
}

.line-one {
  left: 39%;
  bottom: 84px;
  height: 62%;
}

.line-two {
  right: 37%;
  bottom: 58px;
  height: 43%;
}

.line-three {
  right: 22%;
  bottom: 74px;
  height: 33%;
  background: rgba(185, 135, 85, 0.82);
}

.base-line {
  right: 9%;
  bottom: 38px;
  left: 9%;
  height: 2px;
  background: var(--color-copper);
}

.section-spacing {
  padding: var(--section-space) 0;
}

.about-section,
.contact-section {
  background: var(--color-white);
}

.about-grid,
.why-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  align-items: start;
  gap: 64px;
}

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

.feature-list {
  display: grid;
  gap: 16px;
}

.feature-card,
.service-card,
.contact-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-white);
}

.feature-card {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: center;
  gap: 18px;
  min-height: 96px;
  padding: 22px;
}

.feature-card h3 {
  margin-bottom: 0;
}

.feature-number {
  color: var(--color-copper);
  font-weight: 800;
}

.services-section,
.why-section {
  background: var(--color-soft);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 38px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.service-card {
  min-height: 250px;
  padding: 28px;
  box-shadow: 0 18px 45px rgba(23, 26, 29, 0.06);
}

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

.service-icon {
  display: block;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  border: 2px solid var(--color-charcoal);
  border-left-color: var(--color-copper);
  background: linear-gradient(135deg, transparent 0 48%, var(--color-copper) 48% 53%, transparent 53%);
}

.why-grid {
  align-items: center;
}

.reason-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.reason-item {
  position: relative;
  min-height: 78px;
  padding: 22px 22px 22px 52px;
  border-left: 3px solid var(--color-copper);
  background: var(--color-white);
  color: var(--color-charcoal);
  font-weight: 700;
}

.reason-item::before {
  position: absolute;
  top: 26px;
  left: 22px;
  width: 10px;
  height: 10px;
  content: "";
  background: var(--color-copper);
}

.contact-card {
  display: grid;
  gap: 18px;
  padding: 34px;
  font-style: normal;
  box-shadow: var(--shadow-soft);
}

.contact-row {
  display: grid;
  gap: 4px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-line);
}

.contact-row span {
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.contact-row a,
.contact-row p {
  margin: 0;
  color: var(--color-charcoal);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.whatsapp-button {
  margin-top: 6px;
  color: var(--color-white);
  background: var(--color-whatsapp);
}

.site-footer {
  padding: 28px 0;
  background: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.78);
  text-align: center;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  :root {
    --section-space: 76px;
  }

  .header-inner {
    flex-direction: column;
    justify-content: center;
    min-height: auto;
    padding: 18px 0;
  }

  .main-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 22px;
  }

  .hero-section {
    min-height: auto;
    padding-top: 70px;
  }

  .hero-grid,
  .about-grid,
  .why-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .architectural-visual {
    justify-content: flex-start;
  }

  .visual-frame {
    width: min(100%, 520px);
  }

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

@media (max-width: 640px) {
  :root {
    --section-space: 58px;
  }

  .container {
    width: min(100% - 28px, var(--container));
  }

  .brand {
    font-size: 1rem;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .main-nav {
    width: 100%;
    font-size: 0.88rem;
  }

  .hero-section {
    padding: 54px 0 58px;
  }

  .hero-text,
  .section-copy p {
    font-size: 1rem;
  }

  .primary-button,
  .whatsapp-button {
    width: 100%;
  }

  .feature-card {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .services-grid,
  .reason-list {
    grid-template-columns: 1fr;
  }

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

  .contact-card {
    padding: 24px;
  }
}