:root {
  color-scheme: light;
  font-family: "Segoe UI", Arial, sans-serif;
  color: #0b1f3d;
  background: #edece8;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    linear-gradient(rgba(11, 31, 61, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 31, 61, 0.045) 1px, transparent 1px),
    #edece8;
  background-size: 32px 32px;
}

a {
  color: inherit;
}

main {
  width: min(1480px, calc(100% - 64px));
  margin: 0 auto;
  padding: 32px 0 72px;
}

.selector-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(11, 31, 61, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand img {
  width: 46px;
  height: 46px;
}

.brand span {
  display: grid;
  line-height: 1;
}

.brand strong {
  font-size: 22px;
  letter-spacing: 0.08em;
}

.brand small {
  margin-top: 5px;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.26em;
}

.selector-header p {
  margin: 0;
  color: #647084;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro {
  display: grid;
  grid-template-columns: minmax(200px, 0.7fr) minmax(360px, 1.4fr) minmax(260px, 0.8fr);
  gap: 32px;
  align-items: end;
  padding: 74px 0 52px;
}

.eyebrow,
.concept-copy > span {
  color: #667286;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.18em;
}

.intro h1 {
  max-width: 760px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 5.3vw, 82px);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.intro p {
  margin: 0;
  color: #596579;
  font-size: 15px;
  line-height: 1.7;
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.concept {
  display: block;
  overflow: hidden;
  background: white;
  text-decoration: none;
  transition: transform 240ms ease, box-shadow 240ms ease;
}

.concept:hover {
  transform: translateY(-5px);
  box-shadow: 0 24px 70px rgba(7, 25, 51, 0.14);
}

.concept-image {
  position: relative;
  min-height: 440px;
  padding: 24px;
  overflow: hidden;
  background-position: center;
  background-size: cover;
}

.concept-image::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(5, 16, 31, 0.05), rgba(5, 16, 31, 0.56));
}

.concept-one .concept-image {
  background-image: url("assets/titan-night-van.jpg");
}

.concept-two .concept-image {
  background-image: url("assets/titan-cctv-day.jpg");
}

.number,
.open {
  position: relative;
  z-index: 1;
  color: white;
}

.number {
  font-family: Georgia, serif;
  font-size: 18px;
}

.open {
  position: absolute;
  z-index: 2;
  right: 24px;
  bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(4, 18, 37, 0.5);
  backdrop-filter: blur(12px);
  font-size: 12px;
  font-weight: 700;
}

.open b {
  font-size: 16px;
}

.concept-copy {
  min-height: 235px;
  padding: 34px;
}

.concept-copy h2 {
  margin: 18px 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 3vw, 48px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.concept-copy p {
  max-width: 530px;
  margin: 0;
  color: #667286;
  line-height: 1.65;
}

@media (max-width: 900px) {
  main {
    width: min(100% - 32px, 720px);
  }

  .intro {
    grid-template-columns: 1fr;
    padding-top: 52px;
  }

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

  .concept-image {
    min-height: 360px;
  }
}

@media (max-width: 560px) {
  main {
    width: min(100% - 20px, 520px);
    padding-top: 18px;
  }

  .selector-header p {
    display: none;
  }

  .concept-image {
    min-height: 280px;
  }
}