:root {
  --color-charcoal: #343d45;
  --color-charcoal-dark: #20272e;
  --color-gray: #6d7780;
  --color-gray-light: #eef2f5;
  --color-white: #ffffff;
  --color-blue: #175aa5;
  --color-blue-dark: #0d4179;
  --color-border: #dbe2e8;
  --shadow-soft: 0 18px 45px rgba(32, 39, 46, 0.12);
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

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

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

.container {
  width: min(100% - 32px, var(--max-width));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

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

.section--dark {
  color: var(--color-white);
  background: var(--color-charcoal-dark);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  max-width: 230px;
}

.brand__logo {
  width: 220px;
  height: auto;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav__menu a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  color: var(--color-charcoal-dark);
  font-size: 0.95rem;
  font-weight: 700;
}

.nav__menu a:hover,
.nav__menu a:focus-visible {
  color: var(--color-blue);
}

.nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-white);
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--color-charcoal-dark);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

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

.nav__toggle.is-open span:nth-child(2) {
  opacity: 0;
}

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

.hero {
  position: relative;
  display: grid;
  min-height: 620px;
  overflow: hidden;
  color: var(--color-white);
  background: var(--color-charcoal-dark);
  place-items: center;
}

.hero__background {
  position: absolute;
  inset: 0;
  background-color: var(--color-charcoal-dark);
  background-image:
    linear-gradient(rgba(24, 31, 38, 0.72), rgba(24, 31, 38, 0.78)),
    url("assets/roofing-project.jpg");
  background-position: center 42%;
  background-repeat: no-repeat;
  background-size: cover;
  transform: scale(1.02);
}

.hero__background::after {
  position: absolute;
  inset: auto 0 0;
  height: 8px;
  background: var(--color-blue);
  content: "";
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 780px;
  padding: 64px 0;
  text-align: center;
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--color-blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow--light {
  color: #8fbdf0;
}

.hero .eyebrow {
  color: #9dccff;
}

h1,
h2,
h3 {
  color: var(--color-charcoal-dark);
  line-height: 1.16;
}

h1 {
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: 22px;
  color: var(--color-white);
  font-size: clamp(2.45rem, 7vw, 5rem);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.hero__lead {
  max-width: 680px;
  margin: 0 auto 18px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.16rem;
}

.tagline {
  margin-bottom: 32px;
  color: var(--color-white);
  font-size: 1.05rem;
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

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

.button--primary {
  color: var(--color-white);
  background: var(--color-blue);
  box-shadow: 0 12px 28px rgba(23, 90, 165, 0.32);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--color-blue-dark);
}

.project-feature__grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1fr);
  align-items: center;
  gap: 56px;
}

.project-feature__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.project-feature__media::before {
  position: absolute;
  inset: 16px;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 6px;
  content: "";
  pointer-events: none;
}

.project-feature__image {
  width: 100%;
  height: min(680px, 72vw);
  min-height: 480px;
  object-fit: cover;
  object-position: center top;
}

.project-feature__label {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 2;
  max-width: calc(100% - 36px);
  padding: 9px 12px;
  color: var(--color-white);
  font-size: 0.78rem;
  font-weight: 800;
  background: rgba(32, 39, 46, 0.84);
  border-left: 4px solid var(--color-blue);
  border-radius: 6px;
}

.project-feature__content p {
  color: var(--color-gray);
}

.project-feature__points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 26px 0 30px;
}

.project-feature__points span {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-charcoal-dark);
  font-weight: 800;
}

.project-feature__points span::before {
  width: 10px;
  height: 10px;
  background: var(--color-blue);
  border-radius: 50%;
  content: "";
  flex: 0 0 auto;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-heading p {
  color: var(--color-gray);
}

.services-grid,
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.service-card,
.benefit,
.about__panel,
.contact-card {
  border-radius: 8px;
}

.service-card {
  padding: 28px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  box-shadow: 0 10px 26px rgba(32, 39, 46, 0.06);
}

.service-card__icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 22px;
  color: var(--color-white);
  font-weight: 900;
  background: var(--color-blue);
  border-radius: 6px;
  place-items: center;
}

.service-card p,
.benefit p,
.about p {
  color: var(--color-gray);
}

.about__grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 48px;
}

.about__panel {
  padding: 32px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.about__logo {
  width: 100%;
  max-width: 310px;
  margin-bottom: 24px;
}

.benefit {
  position: relative;
  min-height: 170px;
  padding: 30px 28px;
  border-left: 4px solid var(--color-blue);
  background: var(--color-gray-light);
}

.benefit__marker {
  display: block;
  width: 34px;
  height: 4px;
  margin-bottom: 20px;
  background: var(--color-blue);
}

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

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

.contact__content p {
  color: rgba(255, 255, 255, 0.82);
}

.contact-details {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-details p {
  margin-bottom: 10px;
}

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

.contact-card {
  padding: 32px;
  color: var(--color-charcoal);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.contact-card h3 {
  margin-bottom: 12px;
}

.contact-card p {
  color: var(--color-gray);
}

.contact-actions {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.button--contact {
  width: 100%;
  color: var(--color-white);
  background: var(--color-blue);
}

.button--whatsapp {
  background: #1f8f4d;
}

.button--whatsapp:hover,
.button--whatsapp:focus-visible {
  background: #176d3a;
}

.button--light {
  color: var(--color-charcoal-dark);
  background: var(--color-gray-light);
}

.button--light:hover,
.button--light:focus-visible {
  background: #dce6ee;
}

.site-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.78);
  background: #161c22;
}

.footer__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer__content strong {
  display: block;
  color: var(--color-white);
}

.footer__content p {
  margin: 0;
}

@media (max-width: 900px) {
  .section {
    padding: 70px 0;
  }

  .project-feature__grid,
  .services-grid,
  .benefits-grid,
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr 1fr;
  }

  .project-feature__grid,
  .about__grid,
  .contact__grid {
    gap: 32px;
  }

  .hero {
    min-height: 560px;
  }
}

@media (max-width: 720px) {
  .nav {
    min-height: 76px;
  }

  .brand {
    max-width: 190px;
  }

  .brand__logo {
    width: 180px;
  }

  .nav__toggle {
    display: block;
  }

  .nav__menu {
    position: absolute;
    top: 100%;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
  }

  .nav__menu.is-open {
    display: flex;
  }

  .nav__menu a {
    min-height: 48px;
    padding: 0 14px;
    border-radius: 6px;
  }

  .nav__menu a:hover,
  .nav__menu a:focus-visible {
    background: var(--color-gray-light);
  }

  .hero {
    min-height: 560px;
  }

  .hero__background {
    background-position: center top;
  }

  .hero__content {
    padding: 56px 0;
  }

  .hero__lead {
    font-size: 1.02rem;
  }

  .project-feature__grid,
  .services-grid,
  .benefits-grid,
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .project-feature__image {
    height: min(760px, 118vw);
    min-height: 420px;
  }

  .service-card,
  .benefit,
  .about__panel,
  .contact-card {
    padding: 24px;
  }

  .footer__content {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .container {
    width: min(100% - 24px, var(--max-width));
  }

  .brand {
    max-width: 160px;
  }

  .brand__logo {
    width: 155px;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.85rem;
  }

  .button {
    width: 100%;
    padding-inline: 18px;
  }
}