:root {
  --navy: #0a1b35;
  --blue: #1e4790;
  --mid-blue: #2c75af;
  --teal: #30959e;
  --charcoal: #4a525f;
  --mist: #d8dbe0;
  --white: #ffffff;
  --surface: #f5f8fa;
  --content-width: 1180px;
  --shadow: 0 24px 70px rgb(10 27 53 / 16%);
}

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--navy);
  background: var(--surface);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.container {
  width: min(calc(100% - 48px), var(--content-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--white);
  background: var(--navy);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--mid-blue);
  outline-offset: 4px;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgb(10 27 53 / 9%);
  background: rgb(255 255 255 / 92%);
}

.header-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-logo {
  width: 204px;
  height: auto;
}

.header-contact {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border: 1px solid rgb(10 27 53 / 18%);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.header-contact:hover {
  color: var(--white);
  border-color: var(--navy);
  background: var(--navy);
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(100vh - 168px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgb(255 255 255 / 98%) 0%, rgb(245 248 250 / 94%) 52%, rgb(216 219 224 / 58%) 100%);
}

.hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  opacity: 0.45;
  background-image: radial-gradient(circle, rgb(44 117 175 / 18%) 1px, transparent 1.5px);
  background-size: 28px 28px;
  mask-image: linear-gradient(90deg, transparent 20%, black 100%);
}

.hero-glow {
  position: absolute;
  z-index: -1;
  width: 550px;
  height: 550px;
  right: -150px;
  top: -140px;
  border-radius: 50%;
  background: rgb(48 149 158 / 18%);
  filter: blur(24px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  align-items: center;
  gap: clamp(36px, 7vw, 104px);
  padding-block: clamp(64px, 8vw, 112px);
}

.hero-copy {
  max-width: 680px;
}

.status {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 26px;
  padding: 8px 14px;
  border: 1px solid rgb(48 149 158 / 30%);
  border-radius: 999px;
  color: var(--navy);
  background: rgb(255 255 255 / 70%);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgb(48 149 158 / 14%);
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.75rem, 5.6vw, 5.25rem);
  font-weight: 750;
  letter-spacing: -0.052em;
  line-height: 0.98;
  text-wrap: balance;
}

.intro {
  max-width: 610px;
  margin: 30px 0 0;
  color: var(--charcoal);
  font-size: clamp(1.125rem, 1.9vw, 1.35rem);
  line-height: 1.58;
}

.positioning {
  max-width: 590px;
  margin: 22px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--teal);
  color: var(--navy);
  font-size: 1rem;
  font-weight: 720;
}

.primary-button {
  min-height: 54px;
  width: fit-content;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 34px;
  padding: 14px 22px;
  border-radius: 12px;
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 12px 28px rgb(10 27 53 / 22%);
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.primary-button:hover {
  background: var(--blue);
  box-shadow: 0 16px 34px rgb(30 71 144 / 26%);
  transform: translateY(-2px);
}

.primary-button span {
  font-size: 1.05rem;
}

.hero-visual {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.symbol-card {
  position: relative;
  z-index: 2;
  width: min(78%, 430px);
  padding: 11%;
  border: 1px solid rgb(255 255 255 / 72%);
  border-radius: 34%;
  background: rgb(255 255 255 / 72%);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.orbit {
  position: absolute;
  border: 1px solid rgb(44 117 175 / 25%);
  border-radius: 50%;
}

.orbit-one {
  width: 94%;
  height: 94%;
}

.orbit-two {
  width: 68%;
  height: 68%;
  border-color: rgb(48 149 158 / 28%);
}

.hero-visual::before,
.hero-visual::after {
  position: absolute;
  z-index: 3;
  width: 14px;
  height: 14px;
  content: "";
  border: 4px solid var(--surface);
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 5px 14px rgb(10 27 53 / 25%);
}

.hero-visual::before {
  top: 12%;
  right: 18%;
}

.hero-visual::after {
  bottom: 19%;
  left: 8%;
  background: var(--mid-blue);
}

.visual-note {
  position: absolute;
  z-index: 4;
  right: 2%;
  bottom: 14%;
  padding: 10px 14px;
  border: 1px solid rgb(10 27 53 / 10%);
  border-radius: 10px;
  color: var(--navy);
  background: rgb(255 255 255 / 86%);
  box-shadow: 0 12px 30px rgb(10 27 53 / 10%);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-footer {
  color: rgb(255 255 255 / 76%);
  background: var(--navy);
}

.footer-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 0.875rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--white);
  font-weight: 700;
  text-underline-offset: 4px;
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
    padding-block: 64px 52px;
  }

  .hero-copy {
    max-width: 740px;
  }

  .hero-visual {
    width: min(100%, 500px);
    margin-inline: auto;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .header-inner {
    min-height: 82px;
    gap: 16px;
  }

  .brand-logo {
    width: 158px;
  }

  .header-contact {
    padding-inline: 14px;
  }

  .hero-grid {
    padding-block: 48px 42px;
  }

  .status {
    margin-bottom: 22px;
    font-size: 0.72rem;
  }

  h1 {
    font-size: clamp(2.55rem, 12.2vw, 4rem);
    line-height: 1.02;
  }

  .intro {
    margin-top: 24px;
  }

  .primary-button {
    width: 100%;
  }

  .hero-visual {
    width: min(92vw, 420px);
  }

  .visual-note {
    right: 0;
  }

  .footer-inner {
    min-height: 96px;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
  }
}

@media (max-width: 380px) {
  .brand-logo {
    width: 142px;
  }

  .header-contact {
    font-size: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}