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

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: #f7f7f2;
  background: #090b0d;
  font-size: 1.6rem;
  line-height: 1.55;
}

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

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.4rem;
  padding: 2.4rem 4rem;
  color: #fff;
  background: linear-gradient(to bottom, rgba(4, 7, 10, 0.78), rgba(4, 7, 10, 0));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 1.2rem;
  min-width: 0;
  text-decoration: none;
}

.brand__mark {
  width: 4.4rem;
  height: 4.4rem;
  object-fit: contain;
}

.brand__name {
  font-size: 1.5rem;
  font-weight: 800;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2.4rem;
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
}

.site-nav a,
.text-link,
.scroll-cue {
  text-decoration: none;
}

.site-nav a {
  opacity: 0.86;
  transition: opacity 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  opacity: 1;
}

.photo-section {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  overflow: hidden;
  background-position: center;
  background-size: cover;
  isolation: isolate;
}

.photo-section--mountains {
  background-image: url("../asset/img/remarks.jpg");
  background-position: center bottom;
}

.photo-section--water {
  background-image: url("../asset/img/ship.jpg");
  background-position: center;
}

.photo-section--air {
  background-image: url("../asset/img/fly.jpg");
  background-position: center;
}

.photo-section__shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to bottom, rgba(4, 7, 10, 0.58), rgba(4, 7, 10, 0.24) 36%, rgba(4, 7, 10, 0.72)),
    linear-gradient(to right, rgba(4, 7, 10, 0.72), rgba(4, 7, 10, 0.16) 62%);
}

.photo-section__shade--left {
  background:
    linear-gradient(to bottom, rgba(4, 7, 10, 0.32), rgba(4, 7, 10, 0.58)),
    linear-gradient(to right, rgba(4, 7, 10, 0.12), rgba(4, 7, 10, 0.78) 58%, rgba(4, 7, 10, 0.9));
}

.photo-section__shade--right {
  background:
    linear-gradient(to bottom, rgba(4, 7, 10, 0.34), rgba(4, 7, 10, 0.72)),
    linear-gradient(to right, rgba(4, 7, 10, 0.82), rgba(4, 7, 10, 0.34) 58%, rgba(4, 7, 10, 0.08));
}

.section-inner {
  width: min(112rem, calc(100% - 8rem));
  margin: 0 auto;
  padding: 14rem 0 10rem;
}

.hero__content {
  align-self: flex-end;
  padding-bottom: 12rem;
}

.section-inner--right {
  max-width: 58rem;
  margin-right: 8rem;
}

.section-inner--left {
  max-width: 62rem;
  margin-left: 8rem;
}

.eyebrow {
  margin: 0 0 1.4rem;
  color: #b7f1dd;
  font-size: 1.3rem;
  font-weight: 800;
  text-transform: uppercase;
}

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

h1 {
  max-width: 88rem;
  margin-bottom: 2rem;
  font-size: 8rem;
  line-height: 0.95;
  font-weight: 800;
}

.hero-title {
  display: grid;
  gap: 1.2rem;
}

.hero-title__brand,
.hero-title__line {
  display: block;
}

.hero-title__line {
  display: block;
  font-size: 0.72em;
  line-height: 1.05;
}

h2 {
  margin-bottom: 2rem;
  font-size: 5.4rem;
  line-height: 1;
  font-weight: 800;
}

h3 {
  margin-bottom: 1rem;
  color: #f5f7f1;
  font-size: 1.8rem;
  line-height: 1.2;
}

.hero__lead,
.section-inner p {
  max-width: 58rem;
  color: #edf0ea;
  font-size: 2rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  margin-top: 1.8rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid #b7f1dd;
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  right: 4rem;
  bottom: 3.2rem;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  text-transform: uppercase;
  opacity: 0.82;
}

.statement-section {
  background: #f4f0e6;
  color: #161a1d;
}

.statement-section__inner {
  width: min(112rem, calc(100% - 8rem));
  margin: 0 auto;
  padding: 11rem 0;
}

.statement-section .eyebrow {
  color: #147267;
}

.statement-section h2 {
  max-width: 82rem;
  color: #161a1d;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4rem;
  margin-top: 5.6rem;
}

.principles article {
  border-top: 2px solid #161a1d;
  padding-top: 2rem;
}

.principles h3 {
  color: #161a1d;
}

.principles p {
  margin: 0;
  color: #3d4448;
  font-size: 1.7rem;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.8rem;
  min-height: 12rem;
  padding: 3rem;
  color: #d9ded8;
  background: #080a0c;
  font-size: 1.4rem;
}

.footer__logo {
  width: 4rem;
  height: 4rem;
}

.footer p {
  margin: 0;
}

@media (max-width: 900px) {
  html {
    font-size: 56.25%;
  }

  .site-header {
    padding: 1.8rem 2.4rem;
  }

  .site-nav {
    gap: 1.4rem;
    font-size: 1.2rem;
  }

  .section-inner,
  .statement-section__inner {
    width: min(100% - 4rem, 72rem);
  }

  .section-inner--right,
  .section-inner--left {
    margin-right: auto;
    margin-left: auto;
  }

  h1 {
    font-size: 5.6rem;
  }

  .hero-title__line {
    font-size: 0.78em;
  }

  h2 {
    font-size: 4.4rem;
  }

  .principles {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .scroll-cue {
    left: 2.4rem;
    right: auto;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 1.5rem;
  }

  .site-header {
    align-items: flex-start;
    padding: 1.6rem 1.8rem;
  }

  .brand__mark {
    width: 3.6rem;
    height: 3.6rem;
  }

  .brand__name {
    display: none;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 1rem 1.4rem;
    max-width: 25rem;
  }

  .photo-section {
    min-height: 92svh;
  }

  .photo-section--mountains {
    background-position: center bottom;
  }

  .photo-section--water {
    background-position: 57% center;
  }

  .photo-section--air {
    background-position: 46% center;
  }

  .photo-section__shade,
  .photo-section__shade--left,
  .photo-section__shade--right {
    background:
      linear-gradient(to bottom, rgba(4, 7, 10, 0.56), rgba(4, 7, 10, 0.34) 38%, rgba(4, 7, 10, 0.88)),
      linear-gradient(to right, rgba(4, 7, 10, 0.72), rgba(4, 7, 10, 0.28));
  }

  .section-inner {
    width: calc(100% - 3.2rem);
    padding: 12rem 0 8rem;
  }

  .hero__content {
    padding-bottom: 10rem;
  }

  .statement-section__inner {
    width: calc(100% - 3.2rem);
    padding: 7rem 0;
  }

  h1 {
    font-size: 4.8rem;
  }

  .hero-title {
    gap: 0.8rem;
  }

  .hero-title__line {
    font-size: 0.68em;
  }

  h2 {
    font-size: 3.8rem;
  }

  .hero__lead,
  .section-inner p {
    font-size: 1.8rem;
  }

  .footer {
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
  }
}