:root {
  --ink: #14333d;
  --muted: #5d6d70;
  --sea: #009c9c;
  --sea-deep: #006b73;
  --aqua: #8be7dc;
  --coral: #ff765f;
  --sun: #ffd166;
  --foam: #f6fffb;
  --sky: #e5fbff;
  --paper: #ffffff;
  --line: rgba(20, 51, 61, 0.14);
  --shadow: 0 22px 60px rgba(21, 62, 72, 0.15);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #f7fffb 0%, #e5fbff 42%, #fff8ec 100%);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
}

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 20;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--paper);
  border-radius: var(--radius);
  transform: translateY(-140%);
  transition: transform 180ms ease;
}

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

.hero {
  position: relative;
  isolation: isolate;
  display: flex;
  min-height: 84svh;
  overflow: hidden;
  color: #ffffff;
  background-image:
    linear-gradient(90deg, rgba(8, 44, 55, 0.66) 0%, rgba(8, 44, 55, 0.34) 42%, rgba(8, 44, 55, 0.08) 100%),
    linear-gradient(180deg, rgba(2, 24, 30, 0.24) 0%, rgba(2, 24, 30, 0.04) 48%, rgba(2, 24, 30, 0.4) 100%),
    url("./sunmer-space-beach.png");
  background-position: center;
  background-size: cover;
  flex-direction: column;
}

.hero::after {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 180px;
  content: "";
  background: linear-gradient(180deg, rgba(246, 255, 251, 0) 0%, rgba(246, 255, 251, 0.92) 100%);
}

.site-nav {
  display: flex;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 800;
}

.brand-mark {
  position: relative;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.86);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sun) 0 45%, var(--aqua) 46% 100%);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.14);
}

.brand-mark::after {
  position: absolute;
  right: -4px;
  bottom: 4px;
  width: 18px;
  height: 8px;
  content: "";
  border-top: 2px solid rgba(20, 51, 61, 0.56);
  border-radius: 50%;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.nav-links a {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(255, 255, 255, 0.22);
  outline: none;
}

.hero-inner {
  width: min(1160px, calc(100% - 40px));
  margin: auto auto 0;
  padding: 94px 0 112px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--sun);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow.dark {
  color: var(--sea-deep);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 7.25rem;
  line-height: 0.92;
  letter-spacing: 0;
  text-wrap: balance;
  text-shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
}

.hero-copy {
  max-width: 610px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  margin-top: 34px;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  padding: 11px 18px;
  border-radius: var(--radius);
  align-items: center;
  justify-content: center;
  font-weight: 800;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button-primary {
  color: #12343d;
  background: var(--sun);
  box-shadow: 0 14px 32px rgba(255, 209, 102, 0.28);
}

.button-ghost {
  border: 1px solid rgba(255, 255, 255, 0.44);
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(14px);
}

.hero-panel {
  position: absolute;
  right: max(20px, calc((100vw - 1160px) / 2));
  bottom: 48px;
  display: grid;
  width: min(330px, calc(100% - 40px));
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.9);
  background: rgba(12, 59, 67, 0.34);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18);
}

.hero-panel span {
  padding: 14px 12px;
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
}

.hero-panel span + span {
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.section,
.split-section {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.section {
  padding: 86px 0;
}

.intro {
  padding-top: 70px;
}

.section-heading {
  max-width: 710px;
}

.section-heading.compact {
  max-width: 540px;
}

.section-heading h2,
.split-copy h2 {
  margin: 0;
  font-size: 3rem;
  line-height: 1.08;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-heading p,
.split-copy p {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.signal-grid {
  display: grid;
  margin-top: 38px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.signal-card,
.moment-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.signal-card {
  min-height: 220px;
  padding: 26px;
}

.signal-number {
  display: inline-flex;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--coral);
  font-weight: 900;
}

.signal-card:nth-child(2) .signal-number {
  background: var(--sea);
}

.signal-card:nth-child(3) .signal-number {
  color: var(--ink);
  background: var(--sun);
}

.signal-card h3,
.moment-card h3 {
  margin: 0;
  font-size: 1.28rem;
}

.signal-card p,
.moment-card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.split-section {
  display: grid;
  padding: 88px 0;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  align-items: center;
  gap: 42px;
}

.split-copy {
  max-width: 470px;
}

.text-link {
  display: inline-flex;
  margin-top: 28px;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--coral);
  color: var(--sea-deep);
  font-weight: 900;
}

.image-window {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  background: var(--sky);
}

.image-window img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center right;
}

.image-window figcaption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  max-width: calc(100% - 32px);
  padding: 9px 12px;
  border-radius: var(--radius);
  color: #ffffff;
  background: rgba(14, 56, 66, 0.62);
  backdrop-filter: blur(12px);
  font-size: 0.88rem;
  font-weight: 700;
}

.moments {
  padding-top: 72px;
}

.moment-list {
  display: grid;
  margin-top: 34px;
  gap: 14px;
}

.moment-card {
  display: grid;
  padding: 22px;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: start;
  gap: 20px;
}

.moment-time {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  color: #ffffff;
  background: var(--sea-deep);
  font-weight: 900;
}

.moment-card:nth-child(2) .moment-time {
  color: var(--ink);
  background: var(--sun);
}

.moment-card:nth-child(3) .moment-time {
  background: var(--coral);
}

.footer {
  display: flex;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 44px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-brand {
  color: var(--ink);
}

.footer .brand-mark {
  border-color: rgba(20, 51, 61, 0.28);
  box-shadow: 0 0 0 4px rgba(0, 156, 156, 0.08);
}

.footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero-inner {
    padding: 72px 0 126px;
  }

  .hero h1 {
    font-size: 5.1rem;
  }

  .hero-panel {
    right: 20px;
    bottom: 32px;
  }

  .signal-grid,
  .split-section {
    grid-template-columns: 1fr;
  }

  .split-section {
    padding: 58px 0;
  }

  .split-copy {
    max-width: none;
  }

  .section-heading h2,
  .split-copy h2 {
    font-size: 2.35rem;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 88svh;
    background-position: 58% center;
  }

  .site-nav,
  .section,
  .split-section,
  .footer,
  .hero-inner {
    width: min(100% - 28px, 1160px);
  }

  .hero h1 {
    font-size: 3.45rem;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .button {
    width: 100%;
  }

  .hero-panel {
    grid-template-columns: 1fr;
  }

  .hero-panel span + span {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    border-left: 0;
  }

  .section {
    padding: 60px 0;
  }

  .signal-card {
    min-height: 0;
    padding: 22px;
  }

  .moment-card {
    grid-template-columns: 1fr;
  }

  .moment-time {
    width: 84px;
  }

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