:root {
  --font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --color-primary: #13426b;
  --color-primary-dark: #0d2d46;
  --color-secondary: #f4b426;
  --color-background: #f5f7fa;
  --color-surface: #ffffff;
  --color-text: #1f2933;
  --color-text-light: #4a5568;
  --color-border: #d9e2ec;
  --shadow-soft: 0 20px 50px rgba(19, 66, 107, 0.08);
  --shadow-card: 0 10px 30px rgba(15, 34, 54, 0.08);
  --radius-sm: 12px;
  --radius-lg: 18px;
  --transition: all 0.25s ease;
  --container-width: 100%;
  --container-padding: clamp(1.5rem, 4vw, calc((100% - 1400px) / 2));
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  height: 100%;
}

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

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

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container {
  width: 100%;
  max-width: 100%;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container.narrow {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  transition: var(--transition);
}

.site-header.scrolled {
  position: sticky;
  background-color: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid rgba(217, 226, 236, 0.6);
}

.site-header.scrolled .nav-list a {
  color: var(--color-text-light);
}

.site-header:not(.scrolled) .nav-list a {
  color: rgba(255, 255, 255, 0.9);
}

.site-header:not(.scrolled) .nav-list a:hover,
.site-header:not(.scrolled) .nav-list a:focus {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.15);
}

.site-header:not(.scrolled) .nav-list a.is-active {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.2);
}

.site-header:not(.scrolled) .nav-toggle__line {
  background-color: #fff;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.9rem 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: var(--transition);
  height: 90px;
  padding: 0.5rem 0;
}

.logo img {
  height: 90px;
  width: auto;
  max-width: 350px;
  min-width: 200px;
  object-fit: contain;
  transition: var(--transition);
  display: block;
}

/* Logo white when header is transparent (over slideshow) */
.site-header:not(.scrolled) .logo img {
  filter: brightness(0) invert(1) drop-shadow(0 2px 10px rgba(0, 0, 0, 0.4));
}

/* Logo normal colors when header is scrolled */
.site-header.scrolled .logo img {
  filter: none;
}

.main-nav {
  display: flex;
  align-items: center;
  position: relative;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-list a {
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--color-text-light);
  transition: var(--transition);
}

.nav-list a:hover,
.nav-list a:focus {
  color: var(--color-primary);
  background-color: rgba(19, 66, 107, 0.08);
}

.nav-list a.is-active {
  color: var(--color-primary);
  background-color: rgba(19, 66, 107, 0.12);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 0.25rem;
  background: none;
  border: none;
  padding: 0.25rem;
  cursor: pointer;
}

.nav-toggle__line {
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform 0.3s ease;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero {
  width: 100%;
  padding: 6rem var(--container-padding) 4rem;
  background: linear-gradient(135deg, #ffffff 0%, #e6eff8 100%);
}

.hero__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
  gap: 3rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

/* Hero Slideshow Fullscreen */
.hero-slideshow {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

.slideshow-container {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
  z-index: 1;
}

.slide.slide--active {
  opacity: 1 !important;
  visibility: visible !important;
  z-index: 2;
}

.slide__image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.slide__image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(19, 66, 107, 0.7) 0%, rgba(13, 45, 70, 0.5) 100%);
}

.slide__content {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}

.slide__content .container {
  max-width: 900px;
  padding: 2rem;
}

.slide__content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: #fff;
  font-weight: 700;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.slide__content p {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  line-height: 1.6;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.95);
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.2);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.slideshow-controls {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  padding: 0 var(--container-padding);
  pointer-events: none;
}

.slideshow-nav {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  pointer-events: all;
  color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  position: relative;
}

.slideshow-nav:hover,
.slideshow-nav:focus {
  background-color: #fff;
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.25);
}

.slideshow-nav svg {
  width: 24px;
  height: 24px;
}

.slideshow-dots {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 0.75rem;
}

.slideshow-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  background-color: transparent;
  cursor: pointer;
  transition: var(--transition);
  padding: 0;
}

.slideshow-dot:hover,
.slideshow-dot:focus {
  background-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.2);
}

.slideshow-dot--active {
  background-color: #fff;
  border-color: #fff;
  width: 32px;
  border-radius: 6px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.hero__stats {
  display: grid;
  gap: 1rem;
}

.hero__stats article {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
}

.hero__stats h2 {
  margin: 0 0 0.35rem;
  font-size: 2rem;
  color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

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

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

.btn--secondary:hover,
.btn--secondary:focus {
  filter: brightness(0.9);
}

.btn--ghost {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
}

.btn--ghost:hover,
.btn--ghost:focus {
  border-color: var(--color-primary);
  background-color: rgba(19, 66, 107, 0.08);
}

.link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 600;
  color: var(--color-primary);
}

.link::after {
  content: "→";
  font-size: 0.9em;
  transition: transform 0.2s ease;
}

.link:hover::after {
  transform: translateX(4px);
}

.split {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.split__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  align-items: center;
}

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 2rem;
}

h1,
h2,
h3,
h4 {
  color: var(--color-primary-dark);
  margin-top: 0;
}

.checked-list {
  display: grid;
  gap: 0.6rem;
  margin: 1.5rem 0;
}

.checked-list li {
  position: relative;
  padding-left: 1.9rem;
  color: var(--color-text-light);
}

.checked-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3rem;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  background: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="none"%3E%3Cpath d="M4 8l2.4 2.4L12 4.8" stroke="%2313426b" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/%3E%3C/svg%3E')
      center/12px 12px no-repeat;
}

.features {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.75rem;
}

.features__grid article {
  background-color: var(--color-surface);
  border-radius: var(--radius-sm);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.features__grid h3 {
  margin-bottom: 0.5rem;
}

.cta {
  width: 100%;
  padding: 4rem var(--container-padding);
  background: linear-gradient(135deg, rgba(19, 66, 107, 0.95) 0%, #0d2d46 100%);
  color: #fff;
}

.cta__content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta h2 {
  color: #fff;
}

.site-footer {
  width: 100%;
  background-color: #0f2236;
  color: #d6e4f5;
  padding: 3rem var(--container-padding) 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer__grid h4 {
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer__grid a {
  color: inherit;
  opacity: 0.9;
  transition: var(--transition);
}

.footer__grid a:hover,
.footer__grid a:focus {
  opacity: 1;
}

.footer__bottom {
  border-top: 1px solid rgba(214, 228, 245, 0.1);
  margin-top: 2.5rem;
  text-align: center;
  padding: 1.5rem var(--container-padding);
  font-size: 0.85rem;
}

.page {
  padding-bottom: 4rem;
}

.page-hero {
  width: 100%;
  padding: 5rem var(--container-padding) 3rem;
  background: linear-gradient(135deg, #ffffff 0%, #ecf3fa 100%);
}

.service-list {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.service-item {
  position: relative;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-soft);
}

.service-item__tag {
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  background-color: rgba(19, 66, 107, 0.1);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-weight: 600;
  font-size: 0.8rem;
}

.pricing {
  width: 100%;
  padding: 0 var(--container-padding) 4rem;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.card--accent {
  background: linear-gradient(135deg, #13426b 0%, #1e5d96 100%);
  color: #fff;
}

.card--accent h3,
.card--accent .price,
.card--accent ul li {
  color: #fff;
}

.price {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
}

.projects {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.projects__grid {
  display: grid;
  gap: 2.5rem;
}

.project-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.project-card__image {
  min-height: 220px;
  background-size: cover;
  background-position: center;
}

.project-card__image--villa {
  background-image: linear-gradient(
      rgba(19, 66, 107, 0.35),
      rgba(19, 66, 107, 0.45)
    ),
    url("https://images.unsplash.com/photo-1580587771525-78b9dba3b914?auto=format&fit=crop&w=900&q=80");
}

.project-card__image--office {
  background-image: linear-gradient(
      rgba(19, 66, 107, 0.35),
      rgba(19, 66, 107, 0.45)
    ),
    url("https://images.unsplash.com/photo-1529429617124-aee818728545?auto=format&fit=crop&w=900&q=80");
}

.project-card__image--retail {
  background-image: linear-gradient(
      rgba(19, 66, 107, 0.35),
      rgba(19, 66, 107, 0.45)
    ),
    url("https://images.unsplash.com/photo-1545239351-1141bd82e8a6?auto=format&fit=crop&w=900&q=80");
}

.project-card__content {
  padding: 2.25rem;
}

.project-card__content dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.project-card__content dt {
  font-weight: 600;
  color: var(--color-text-light);
}

.testimonials {
  width: 100%;
  padding: 4rem var(--container-padding);
  background-color: #ffffff;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.testimonials blockquote {
  margin: 0;
  padding: 1.75rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(19, 66, 107, 0.08), rgba(19, 66, 107, 0.02));
  font-style: italic;
  color: var(--color-primary-dark);
}

.testimonials footer {
  margin-top: 1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.timeline {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.timeline__list {
  border-left: 3px solid rgba(19, 66, 107, 0.1);
  padding-left: 2rem;
  margin-top: 2rem;
  display: grid;
  gap: 1.5rem;
}

.timeline__list li {
  position: relative;
}

.timeline__list li::before {
  content: "";
  position: absolute;
  left: -2.1rem;
  top: 0.2rem;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background-color: var(--color-secondary);
  border: 2px solid #fff;
  box-shadow: 0 0 0 4px rgba(19, 66, 107, 0.15);
}

.timeline__year {
  font-weight: 700;
  color: var(--color-primary);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.team {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-top: 2.5rem;
}

.team-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.team-card__image {
  height: 180px;
  background-size: cover;
  background-position: center;
}

.team-card__image--ceo {
  background-image: linear-gradient(
      rgba(19, 66, 107, 0.2),
      rgba(19, 66, 107, 0.4)
    ),
    url("https://images.unsplash.com/photo-1524504388940-b1c1722653e1?auto=format&fit=crop&w=900&q=80");
}

.team-card__image--project {
  background-image: linear-gradient(
      rgba(19, 66, 107, 0.2),
      rgba(19, 66, 107, 0.4)
    ),
    url("https://images.unsplash.com/photo-1526280760714-f9efc3e53f53?auto=format&fit=crop&w=900&q=80");
}

.team-card__image--service {
  background-image: linear-gradient(
      rgba(19, 66, 107, 0.2),
      rgba(19, 66, 107, 0.4)
    ),
    url("https://images.unsplash.com/photo-1504593811423-6dd665756598?auto=format&fit=crop&w=900&q=80");
}

.team-card div {
  padding: 1.75rem;
}

.certifications {
  width: 100%;
  padding: 4rem var(--container-padding);
  background-color: #ffffff;
}

.certifications__list {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.contact {
  width: 100%;
  padding: 4rem var(--container-padding);
}

.contact__grid {
  display: grid;
  grid-template-columns: minmax(240px, 320px) minmax(300px, 1fr);
  gap: 3rem;
  align-items: start;
}

.contact__info ul {
  display: grid;
  gap: 1rem;
}

.contact__form {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 2.5rem;
  display: grid;
  gap: 1.25rem;
}

.form-group {
  display: grid;
  gap: 0.5rem;
}

.form-group label {
  font-weight: 600;
  color: var(--color-primary-dark);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(19, 66, 107, 0.12);
  outline: none;
}

.form-note {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: -0.5rem;
}

.map {
  width: 100%;
  padding: 0 var(--container-padding) 4rem;
}

.map__iframe-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.map iframe {
  border: 0;
  width: 100%;
  min-height: 360px;
}

.page section + section {
  margin-top: 0;
}

main {
  margin: 0;
  padding: 0;
}

main > .hero-slideshow:first-child {
  margin-top: 0;
  padding-top: 0;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-list {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transform-origin: top right;
    transform: scale(0.9);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    min-width: 220px;
  }

  .nav-list.is-open {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
  }

  .nav-list a {
    padding: 0.6rem 0.8rem;
  }

  .site-header .container {
    padding: 0.8rem 0;
  }

  .hero__content {
    gap: 2rem;
  }

  .contact__grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    grid-template-columns: 1fr;
  }

  .hero-slideshow {
    min-height: 100vh;
    height: 100vh;
  }

  .slideshow-nav {
    width: 48px;
    height: 48px;
  }

  .slideshow-nav svg {
    width: 20px;
    height: 20px;
  }

  .slideshow-controls {
    padding: 0 1rem;
  }
}

@media (max-width: 600px) {
  :root {
    --container-padding: 1.5rem;
  }

  .site-header .container {
    gap: 1rem;
  }

  .logo {
    height: 70px;
  }

  .logo img {
    height: 70px;
    max-width: 250px;
    min-width: 180px;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

  .hero__stats {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }

  .split__grid,
  .features__grid,
  .pricing__grid,
  .team__grid,
  .testimonials__grid {
    gap: 1.5rem;
  }

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

  .hero-slideshow {
    min-height: 100vh;
    height: 100vh;
  }

  .slide__content .container {
    padding: 1.5rem;
  }

  .slideshow-nav {
    width: 44px;
    height: 44px;
  }

  .slideshow-dots {
    bottom: 1.5rem;
  }

  .slideshow-controls {
    padding: 0 0.5rem;
  }
}