:root {
  --ink: #102235;
  --muted: #5b6d7a;
  --blue: #0d65b7;
  --blue-deep: #0a3f78;
  --green: #1f9f72;
  --green-soft: #e7f6ef;
  --line: #dbe7ef;
  --surface: #ffffff;
  --surface-blue: #eef7ff;
  --shadow: 0 22px 55px rgba(12, 57, 95, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #f8fbfd;
  font-family: "Aptos", "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(219, 231, 239, 0.8);
  backdrop-filter: blur(16px);
}

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

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 12px 24px rgba(13, 101, 183, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: #29465d;
  font-weight: 700;
  transition: background 180ms ease, color 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--blue-deep);
  background: var(--surface-blue);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(7, 34, 58, 0.86), rgba(7, 56, 84, 0.58), rgba(31, 159, 114, 0.1)),
    url("https://images.unsplash.com/photo-1587854692152-cbe660dbde88?auto=format&fit=crop&w=1800&q=82") center/cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 130px;
  background: linear-gradient(180deg, transparent, #f8fbfd);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-left: max(20px, calc((100vw - 1120px) / 2));
  color: #fff;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #9ef0ce;
}

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

h1 {
  max-width: 740px;
  margin-bottom: 22px;
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

.hero-copy {
  max-width: 640px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: var(--green);
  box-shadow: 0 16px 34px rgba(31, 159, 114, 0.24);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: #188a63;
  box-shadow: 0 20px 40px rgba(31, 159, 114, 0.32);
  transform: translateY(-2px);
}

.about,
.why {
  padding: 110px 0;
}

.split-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: start;
}

.about-copy {
  color: var(--muted);
  font-size: 1.08rem;
}

.products {
  padding: 100px 0;
  background: linear-gradient(180deg, #fff, var(--surface-blue));
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 42px;
}

.section-heading p {
  max-width: 360px;
  color: var(--muted);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.product-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 28px rgba(12, 57, 95, 0.07);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.product-card:hover {
  border-color: rgba(31, 159, 114, 0.5);
  box-shadow: var(--shadow);
  transform: translateY(-6px);
}

.card-icon {
  display: inline-flex;
  margin-bottom: 44px;
  color: var(--blue);
  font-weight: 900;
}

.product-card p,
.reason-item span,
.contact-panel p,
.footer p {
  color: var(--muted);
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
}

.reason-item {
  display: grid;
  gap: 8px;
  min-height: 150px;
  padding: 32px;
  border-bottom: 1px solid var(--line);
}

.reason-item:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.reason-item:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.reason-item strong {
  font-size: 1.12rem;
}

.contact {
  padding: 105px 0;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-deep), #0f6a90 58%, #127c60);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 42px;
  align-items: start;
}

.contact .section-kicker {
  color: #9ef0ce;
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.78);
}

.contact-list {
  display: grid;
  gap: 18px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}

.contact-list li {
  display: grid;
  gap: 3px;
}

.contact-list span {
  color: #9ef0ce;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

address {
  font-style: normal;
}

.inquiry-form {
  display: grid;
  gap: 16px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 22px 55px rgba(2, 25, 45, 0.28);
  color: var(--ink);
}

.inquiry-form label {
  display: grid;
  gap: 7px;
  color: #29465d;
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  background: #fff;
  font: inherit;
}

.inquiry-form input:focus,
.inquiry-form textarea:focus {
  outline: 3px solid rgba(31, 159, 114, 0.18);
  border-color: var(--green);
}

.hidden-field {
  display: none;
}

.form-button {
  width: 100%;
  margin-top: 4px;
}

.form-status {
  min-height: 1.5em;
  margin: 0;
  color: var(--blue-deep);
  font-weight: 800;
}

.footer {
  padding: 34px 0;
  background: #071f34;
  color: #fff;
}

.footer-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.footer p {
  max-width: 480px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.68);
}

.social-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.social-links a {
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.82);
  transition: border-color 180ms ease, color 180ms ease;
}

.social-links a:hover,
.social-links a:focus-visible {
  border-color: #9ef0ce;
  color: #fff;
}

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

  .nav-links {
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .hero {
    min-height: 620px;
  }

  .hero-content {
    margin: 0 auto;
  }

  .split-layout,
  .contact-layout,
  .section-heading {
    grid-template-columns: 1fr;
    display: grid;
    gap: 24px;
  }

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

@media (max-width: 640px) {
  .navbar,
  .section-shell {
    width: min(100% - 28px, 1120px);
  }

  .about,
  .why,
  .products,
  .contact {
    padding: 72px 0;
  }

  .hero {
    min-height: 590px;
  }

  .product-grid,
  .reason-grid {
    grid-template-columns: 1fr;
  }

  .reason-item,
  .reason-item:nth-child(odd) {
    border-right: 0;
  }

  .reason-item:nth-last-child(2) {
    border-bottom: 1px solid var(--line);
  }

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