:root {
  --navy: #0d2f4f;
  --navy-2: #123f67;
  --ink: #142033;
  --muted: #5d6b7c;
  --line: #d9e3ec;
  --surface: #ffffff;
  --surface-soft: #f4f7fa;
  --teal: #0f766e;
  --green: #20b15a;
  --green-dark: #168447;
  --amber: #f0a429;
  --shadow: 0 18px 45px rgba(13, 47, 79, 0.12);
  --shadow-soft: 0 10px 26px rgba(13, 47, 79, 0.08);
  --radius: 8px;
  --header-height: 78px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

body.menu-open {
  overflow: hidden;
}

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

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

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

.svg-sprite {
  display: none;
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.section-pad {
  padding: 88px 0;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 227, 236, 0.85);
  backdrop-filter: blur(14px);
  transition: box-shadow 0.2s ease, background 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 26px rgba(13, 47, 79, 0.1);
}

.header-content {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-logo {
  width: clamp(168px, 17vw, 230px);
  height: auto;
  aspect-ratio: 707 / 192;
  display: block;
  object-fit: contain;
  object-position: left center;
}

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

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--muted);
}

.main-nav a {
  position: relative;
  padding: 8px 0;
  transition: color 0.2s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--teal);
  transition: width 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--navy);
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 12px 18px;
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.btn-small {
  min-height: 42px;
  padding: 10px 14px;
  font-size: 0.92rem;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--navy-2);
}

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

.btn-whatsapp {
  color: #fff;
  background: var(--green);
  border-color: var(--green);
}

.btn-whatsapp:hover,
.btn-whatsapp:focus-visible {
  background: var(--green-dark);
}

.icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  fill: currentColor;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: none;
  place-items: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  display: block;
  background: var(--navy);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  padding-top: 134px;
  background:
    radial-gradient(circle at 16% 22%, rgba(15, 118, 110, 0.12), transparent 28%),
    linear-gradient(180deg, #f7fafc 0%, #ffffff 88%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 54px;
}

.section-kicker {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.contact-copy h2 {
  margin: 0;
  color: var(--navy);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 660px;
  font-size: 3.2rem;
}

.hero-subtitle {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.8);
  font-size: 0.88rem;
  font-weight: 700;
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: auto 8% -22px 8%;
  height: 32px;
  border-radius: 50%;
  background: rgba(13, 47, 79, 0.18);
  filter: blur(18px);
}

.hero-visual img {
  position: relative;
  width: 100%;
  border: 1px solid rgba(217, 227, 236, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  aspect-ratio: 16 / 11;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading.compact {
  max-width: 650px;
}

.section-heading h2,
.contact-copy h2 {
  font-size: 2.35rem;
}

.section-heading p:not(.section-kicker),
.contact-copy p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.services,
.projects {
  background: var(--surface);
}

.process,
.contact {
  background: var(--surface-soft);
}

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

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

.service-card,
.step,
.project-card,
.contact-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.service-card,
.step,
.project-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.service-card:hover,
.step:hover,
.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(15, 118, 110, 0.38);
  box-shadow: var(--shadow);
}

.service-card {
  min-height: 270px;
  padding: 24px;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  color: var(--teal);
  background: rgba(15, 118, 110, 0.1);
}

.card-icon svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
}

.service-card h3,
.step h3,
.project-card h3 {
  margin: 18px 0 10px;
  color: var(--navy);
  font-size: 1.12rem;
  line-height: 1.3;
  letter-spacing: 0;
}

.service-card p,
.step p,
.project-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.step {
  min-height: 248px;
  padding: 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 34px;
  border-radius: var(--radius);
  color: var(--navy);
  background: #eef6f4;
  font-size: 0.9rem;
  font-weight: 900;
}

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

.project-card {
  min-height: 210px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--amber);
}

.project-card span {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 5px 8px;
  border-radius: var(--radius);
  color: var(--teal);
  background: rgba(15, 118, 110, 0.1);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  align-items: start;
}

.contact-links {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  color: var(--navy);
  font-weight: 800;
  transition: color 0.2s ease, transform 0.2s ease;
}

.contact-links a:hover,
.contact-links a:focus-visible {
  color: var(--teal);
  transform: translateX(4px);
}

.contact-form {
  display: grid;
  gap: 10px;
  padding: 28px;
}

.contact-form label {
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  color: var(--ink);
  background: #fff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form textarea {
  resize: vertical;
  min-height: 130px;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.12);
}

.form-submit {
  margin-top: 10px;
}

.form-feedback {
  min-height: 24px;
  margin: 4px 0 0;
  color: var(--teal);
  font-size: 0.92rem;
  font-weight: 700;
}

.site-footer {
  color: #dbe8f2;
  background: var(--navy);
  padding: 34px 0;
}

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

.footer-brand {
  color: #fff;
}

.site-footer p {
  max-width: 520px;
  margin: 12px 0 0;
  color: #c9d9e6;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-weight: 800;
}

.footer-links a {
  transition: color 0.2s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #ffffff;
}

:focus-visible {
  outline: 3px solid rgba(240, 164, 41, 0.55);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .header-content {
    gap: 14px;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    display: grid;
    gap: 0;
    padding: 12px 20px 24px;
    border-bottom: 1px solid var(--line);
    background: #fff;
    box-shadow: 0 18px 34px rgba(13, 47, 79, 0.14);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .main-nav a::after {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 38px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .section-heading h2,
  .contact-copy h2 {
    font-size: 2rem;
  }

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

@media (max-width: 680px) {
  :root {
    --header-height: 70px;
  }

  .container {
    width: min(100% - 28px, 1120px);
  }

  .section-pad {
    padding: 64px 0;
  }

  .hero {
    padding-top: 110px;
  }

  .brand-logo {
    width: 164px;
  }

  .btn-small {
    display: none;
  }

  .hero h1 {
    font-size: 2.12rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .trust-row {
    display: grid;
  }

  .hero-visual img {
    aspect-ratio: 4 / 3;
  }

  .four-cols,
  .steps,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .service-card,
  .step,
  .project-card {
    min-height: auto;
  }

  .contact-form {
    padding: 22px;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}