:root {
  --color-navy: #0d2233;
  --color-navy-soft: #173b56;
  --color-blue: #1d5a84;
  --color-blue-soft: #2b6f9f;
  --color-white: #f7f8fa;
  --color-paper: #ffffff;
  --color-ink: #142331;
  --color-muted: #5d6c79;
  --color-border: rgba(14, 33, 51, 0.12);
  --shadow-lg: 0 28px 60px rgba(10, 28, 44, 0.18);
  --shadow-md: 0 18px 36px rgba(10, 28, 44, 0.1);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: min(1180px, calc(100vw - 2rem));
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Barlow", sans-serif;
  color: var(--color-ink);
  background:
    radial-gradient(circle at top left, rgba(43, 111, 159, 0.08), transparent 30%),
    linear-gradient(180deg, #f7f8fb 0%, #ffffff 42%, #f4f7f9 100%);
}

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

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

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(18px);
  background: rgba(247, 248, 250, 0.86);
  border-bottom: 1px solid rgba(13, 34, 51, 0.08);
}

.nav-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-size: clamp(1.4rem, 2vw, 1.8rem);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand-mark {
  color: var(--color-navy);
}

.brand-accent {
  color: var(--color-blue);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.site-nav a {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy);
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--color-blue), transparent);
  transition: transform 0.25s ease;
}

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

.nav-toggle,
.nav-toggle-button {
  display: none;
}

.hero {
  position: relative;
  overflow: clip;
  padding: 3.75rem 0 5rem;
  background:
    linear-gradient(110deg, rgba(247, 248, 250, 0.96) 0%, rgba(247, 248, 250, 0.92) 38%, rgba(13, 34, 51, 0.12) 100%),
    url("./assets/main.webp") right center / cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 25, 39, 0.15) 100%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.7fr);
  gap: 2rem;
  align-items: end;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--color-blue);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  line-height: 0.95;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.hero h1 {
  max-width: 10ch;
  font-size: clamp(2.35rem, 5.6vw, 4.8rem);
  color: var(--color-navy);
}

.hero-text {
  max-width: 38rem;
  margin: 1.1rem 0 0;
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  line-height: 1.5;
  color: #203241;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 700;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  color: var(--color-paper);
  background: linear-gradient(135deg, var(--color-blue), var(--color-navy));
  box-shadow: var(--shadow-md);
}

.button-secondary {
  color: var(--color-navy);
  border-color: rgba(13, 34, 51, 0.14);
  background: rgba(255, 255, 255, 0.7);
}

.hero-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(11, 28, 41, 0.92), rgba(17, 53, 79, 0.9));
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
  align-self: start;
}

.hero-badge {
  display: grid;
  gap: 0.15rem;
  margin-bottom: 1.25rem;
}

.hero-badge strong {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1;
}

.hero-badge span {
  font-size: 1rem;
  color: rgba(247, 248, 250, 0.85);
}

.hero-points {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.75rem;
  line-height: 1.5;
}

.section {
  padding: 5rem 0;
}

.section-heading {
  max-width: 52rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  color: var(--color-navy);
}

.section-heading p:last-child {
  margin-top: 1rem;
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-muted);
}

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

.intro-card,
.stat-card,
.industry-card,
.product-card,
.contact-panel,
.contact-form {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-md);
}

.intro-card {
  padding: 1.6rem;
}

.intro-card h3,
.offer-panel h3,
.industry-section h3,
.contact-form h3,
.contact-panel h3 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.intro-card p,
.stat-card p,
.industry-card p,
.product-card p,
.contact-panel p,
.form-note {
  margin: 0;
  line-height: 1.6;
  color: var(--color-muted);
}

.featured {
  color: var(--color-white);
  background:
    linear-gradient(180deg, rgba(12, 34, 50, 0.9), rgba(19, 64, 94, 0.82)),
    url("./assets/bolts_2.webp") center top / cover no-repeat;
}

.featured p,
.featured h3 {
  color: inherit;
}

.section-offer {
  background:
    linear-gradient(180deg, rgba(16, 39, 57, 0.04), rgba(16, 39, 57, 0.02)),
    url("./assets/bolts_3.webp") right 3rem bottom 2rem / min(26vw, 340px) auto no-repeat;
}

.offer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.8fr);
  gap: 1.5rem;
  align-items: start;
}

.offer-panel {
  min-height: 330px;
  padding: 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.offer-panel.dark {
  color: var(--color-white);
  background:
    linear-gradient(90deg, rgba(10, 28, 41, 0.95) 0%, rgba(13, 34, 51, 0.86) 48%, rgba(13, 34, 51, 0.62) 100%),
    url("./assets/bolts_1.webp") center / cover no-repeat;
}

.offer-panel-copy {
  max-width: 32rem;
}

.benefit-list {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  display: grid;
  gap: 0.85rem;
  line-height: 1.55;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.stat-card,
.product-card {
  padding: 1.5rem;
}

.product-subtitle {
  margin-bottom: 0.75rem;
  color: var(--color-blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.offer-side {
  display: grid;
  gap: 1rem;
}

.industry-section {
  margin-top: 2.5rem;
}

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

.industry-card {
  padding: 1.4rem;
}

.industry-card h4 {
  margin: 0 0 0.65rem;
  font-size: 1.2rem;
  color: var(--color-navy);
  text-transform: uppercase;
}

.section-contact {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(238, 244, 248, 0.96)),
    url("./assets/bolts_4.webp") left 2rem bottom 2rem / min(26vw, 340px) auto no-repeat;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 1.2rem;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 1rem;
}

.contact-panel,
.contact-form {
  padding: 1.5rem;
}

.contact-panel a {
  color: var(--color-blue);
  font-weight: 600;
}

.map-panel {
  padding: 0;
  overflow: hidden;
}

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

.contact-form {
  display: grid;
  gap: 1rem;
}

.form-status {
  padding: 0.95rem 1rem;
  border-radius: 14px;
  font-weight: 600;
  line-height: 1.5;
}

.form-status-success {
  color: #0d4a2f;
  background: rgba(44, 167, 107, 0.14);
  border: 1px solid rgba(44, 167, 107, 0.3);
}

.form-status-error {
  color: #7a1f1f;
  background: rgba(196, 55, 55, 0.12);
  border: 1px solid rgba(196, 55, 55, 0.26);
}

.contact-form label {
  display: grid;
  gap: 0.5rem;
  color: var(--color-navy);
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(13, 34, 51, 0.14);
  border-radius: 14px;
  padding: 0.95rem 1rem;
  font: inherit;
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.94);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(29, 90, 132, 0.22);
  border-color: var(--color-blue);
}

.checkbox {
  grid-template-columns: auto 1fr;
  align-items: start;
}

.checkbox input {
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.15rem;
}

.form-note {
  font-size: 0.95rem;
}

.site-footer {
  padding: 1.4rem 0;
  color: var(--color-white);
  background: linear-gradient(90deg, var(--color-navy), var(--color-navy-soft));
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-wrap p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .offer-layout,
  .contact-grid,
  .intro-grid,
  .industry-grid {
    grid-template-columns: 1fr;
  }

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

  .hero {
    padding-top: 3.25rem;
    background-position: 72% center;
  }

  .hero h1 {
    max-width: 12ch;
  }

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

@media (max-width: 760px) {
  .container {
    width: 100%;
    padding-inline: 12px;
  }

  .nav-toggle-button {
    display: grid;
    gap: 0.3rem;
    cursor: pointer;
  }

  .nav-toggle-button span {
    width: 1.5rem;
    height: 2px;
    background: var(--color-navy);
    border-radius: 999px;
  }

  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    display: grid;
    gap: 0;
    padding: 0.4rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.97);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .site-nav a {
    padding: 0.9rem 1rem;
    border-radius: 12px;
  }

  .site-nav a:hover,
  .site-nav a:focus-visible {
    background: rgba(29, 90, 132, 0.08);
  }

  .nav-toggle:checked ~ .site-nav {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero {
    padding: 3rem 0 4rem;
    background:
      linear-gradient(180deg, rgba(247, 248, 250, 0.98) 0%, rgba(247, 248, 250, 0.93) 45%, rgba(247, 248, 250, 0.88) 100%),
      url("./assets/main.webp") 76% center / cover no-repeat;
  }

  .section-offer,
  .section-contact {
    background-size: 220px auto;
    background-position: right 1rem bottom 1rem;
  }

  .hero-card {
    margin-top: 0.5rem;
  }

  .section {
    padding: 4rem 0;
  }
}

@media (max-width: 560px) {
  .container {
    width: 100%;
    padding-inline: 14px;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero-text,
  .section-heading p:last-child {
    font-size: 1rem;
  }

  .offer-panel,
  .intro-card,
  .stat-card,
  .industry-card,
  .product-card,
  .contact-panel,
  .contact-form {
    padding: 1.25rem;
  }

  .map-panel iframe {
    min-height: 300px;
  }
}