:root {
  --ink: #10151c;
  --muted: #5a6573;
  --line: #d8dde5;
  --paper: #f5f7fa;
  --white: #ffffff;
  --brand: #052a5f;
  --brand-dark: #031936;
  --accent: #00a7c8;
  --accent-soft: #dff7fb;
  --shadow: 0 18px 40px rgba(8, 18, 32, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--white);
  line-height: 1.55;
}

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

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

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 5vw, 72px);
  color: var(--white);
  background: rgba(3, 16, 35, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 20px;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  background: var(--white);
  border-radius: 8px;
  padding: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.86);
}

.nav-links a:hover {
  color: var(--white);
}

.hero {
  position: relative;
  min-height: 720px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--brand-dark);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(3, 14, 31, 0.92) 0%, rgba(3, 14, 31, 0.72) 44%, rgba(3, 14, 31, 0.28) 100%),
    linear-gradient(180deg, rgba(3, 14, 31, 0.45) 0%, rgba(3, 14, 31, 0.74) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(780px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 96px);
  padding-top: 76px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.02;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.1;
}

h3 {
  margin: 0 0 8px;
  font-size: 21px;
  line-height: 1.2;
}

.hero-text {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
}

.hero-actions,
.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.hero-actions {
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 8px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--white);
  background: var(--accent);
}

.button-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.08);
}

.section {
  padding: clamp(64px, 9vw, 116px) clamp(18px, 5vw, 72px);
}

.intro,
.material-band,
.cta-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: start;
}

.section-heading {
  max-width: 680px;
}

.section-lead {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.intro-text {
  color: var(--muted);
  font-size: 19px;
}

.intro-text p {
  margin: 0;
}

.intro-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.intro-fact {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  min-height: 118px;
  padding: 18px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.intro-fact svg {
  width: 46px;
  height: 46px;
  color: var(--accent);
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.intro-fact path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.intro-fact strong,
.intro-fact span {
  display: block;
}

.intro-fact strong {
  margin-bottom: 4px;
  font-size: 16px;
  line-height: 1.2;
}

.intro-fact span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.services {
  background: var(--paper);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
}

.service-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.service-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.service-card div {
  padding: 22px;
}

.service-card p,
.steps p,
.cta-content p {
  margin: 0;
  color: var(--muted);
}

.material-band {
  grid-template-columns: 1fr;
  color: var(--white);
  background: var(--brand-dark);
}

.material-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.material-card {
  overflow: hidden;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.material-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.material-card div {
  padding: 16px;
}

.material-card h3 {
  margin-bottom: 7px;
  font-size: 20px;
}

.material-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.4;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.steps li {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 167, 200, 0.08), rgba(255, 255, 255, 0) 52%),
    var(--white);
}

.step-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.step-top span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  background: var(--accent-soft);
  border-radius: 8px;
}

.step-icon {
  width: 56px;
  height: 56px;
  color: var(--brand);
  padding: 12px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.step-icon path {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.cta-section {
  padding: clamp(64px, 9vw, 116px) clamp(18px, 5vw, 72px);
  color: var(--white);
  background: linear-gradient(135deg, var(--brand-dark), var(--brand));
}

.cta-content p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
}

.lead-form {
  align-self: center;
  display: grid;
  gap: 14px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
}

.lead-form label {
  display: grid;
  gap: 7px;
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.82);
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  outline: none;
}

.lead-form textarea {
  min-height: 108px;
  resize: vertical;
}

.lead-form input:focus,
.lead-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 167, 200, 0.22);
}

.form-actions {
  margin-top: 4px;
}

.button-whatsapp {
  color: var(--white);
  background: #25d366;
}

.form-note {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
}

.site-footer {
  padding: 26px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: var(--white);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 680px;
  }

  .hero-content {
    margin-inline: 18px;
  }

  .intro,
  .material-band,
  .cta-section,
  .steps {
    grid-template-columns: 1fr;
  }

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

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

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

  .service-grid,
  .steps {
    gap: 16px;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 640px;
  }

  .hero-overlay {
    background: linear-gradient(180deg, rgba(3, 14, 31, 0.76) 0%, rgba(3, 14, 31, 0.93) 100%);
  }

  .hero-text,
  .intro-text {
    font-size: 17px;
  }

  .intro-facts {
    grid-template-columns: 1fr;
  }

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

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

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

  .service-card div,
  .steps li,
  .lead-form {
    padding: 20px;
  }
}