:root {
  --deep-sea: #164166;
  --ocean: #287ca9;
  --cloud: #f4fbff;
  --mint: #91d4a5;
  --pine: #2b7e66;
  --ice: #dff4ff;
  --ink: #173149;
  --line: #9cc7dc;
  --panel: #ffffffde;
  --accent: #3aa56f;
  --title-font: "Chakra Petch", "Trebuchet MS", sans-serif;
  --body-font: "Sora", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 32px;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--body-font);
  line-height: 1.6;
  background:
    radial-gradient(circle at 10% 0%, #ffffff 0%, #ebf7ff 34%, transparent 45%),
    radial-gradient(circle at 80% 12%, #dbf8f0 0%, transparent 36%),
    linear-gradient(180deg, #f7fdff 0%, #eff9ff 52%, #f8fffd 100%);
}

a {
  color: inherit;
}

svg {
  display: block;
}

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

a:focus-visible {
  outline: 3px solid #2f95ca;
  outline-offset: 7px;
}

.container {
  width: min(1160px, calc(100% - 80px));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 20px;
  top: -100px;
  padding: 12px 20px;
  background: #fff;
  border: 2px solid var(--line);
  color: var(--ink);
  z-index: 10;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  backdrop-filter: blur(8px);
  background: #f8fdffcc;
  border-bottom: 1px solid #b9d8e7;
}

.header-inner {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--title-font);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.brand-icon {
  width: auto;
  height: 3rem;
}

.brand-subtitle {
  display: block;
  font-size: 11px;
  color: #2e6e8f;
}

.brand-year {
  color: var(--accent);
}

.site-header nav {
  display: flex;
  gap: 34px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #21506f;
}

.site-header nav a {
  text-decoration: none;
}

.site-header nav a:hover {
  color: #2d8fc0;
}

.site-header nav span {
  margin-left: 6px;
  color: #2d8fc0;
}

.hero {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 58px;
  align-items: center;
  padding-block: 72px 90px;
}

.eyebrow {
  font-family: var(--title-font);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #2a7e67;
}

.hero-copy > .eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  opacity: 0;
  animation: rise 0.6s ease forwards;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #53ba77;
  flex: 0 0 auto;
  box-shadow: 0 0 0 5px #53ba7722;
}

h1 {
  font-family: var(--title-font);
  font-size: clamp(35px, 4.1vw, 62px);
  line-height: 1;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-wrap: balance;
  color: var(--deep-sea);
  opacity: 0;
  animation: rise 0.7s 0.1s ease forwards;
}

.hero-year {
  display: flex;
  align-items: center;
  gap: 16px;
  color: #4db58f;
  font-size: clamp(56px, 7vw, 94px);
  line-height: 0.88;
  margin-top: 10px;
}

.year-spark {
  color: #2c84b0;
  font-size: clamp(30px, 3.2vw, 43px);
}

.hero-tagline {
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 20px;
  color: #1f5478;
  opacity: 0;
  animation: rise 0.65s 0.22s ease forwards;
}

.hero-description {
  color: #436781;
  max-width: 450px;
  font-size: 16px;
  margin-top: 36px;
  opacity: 0;
  animation: rise 0.65s 0.3s ease forwards;
}

.hero-supporters {
  margin-top: 28px;
}

.supporter-logos {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.supporter-logos img {
  display: block;
  width: auto;
  height: 80px;
  object-fit: contain;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: linear-gradient(135deg, #ebfbff 0%, #d1f2ff 100%);
  color: #19405d;
  border: 1px solid #5fa7c8;
  padding: 14px 20px;
  margin-top: 28px;
  font-family: var(--title-font);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  box-shadow: 0 12px 28px #57a8c127;
  transition:
    transform 0.2s,
    box-shadow 0.2s,
    background 0.2s;
  opacity: 0;
  animation: rise 0.65s 0.38s ease forwards;
}

.button span {
  font-size: 18px;
  line-height: 1;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px #57a8c13a;
  background: linear-gradient(135deg, #f6fdff 0%, #dff8ff 100%);
}

.hero-note {
  margin-top: 16px;
  font-size: 13px;
  color: #50748f;
  opacity: 0;
  animation: rise 0.65s 0.46s ease forwards;
}

.hero-note span {
  color: #3fa267;
  margin-right: 7px;
}

.hero-art {
  position: relative;
  opacity: 0;
  animation: drift-in 0.9s 0.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.globe-stage {
  position: relative;
  width: 100%;
}

.planet-canvas {
  width: 100%;
  aspect-ratio: 1;
  max-width: 560px;
  margin: 0 auto;
}

.planet-canvas canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.event-strip {
  background: linear-gradient(90deg, #d6f4ef 0%, #edf9ff 100%);
  color: #1e5776;
  border-block: 1px solid #a6cfdf;
}

.strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 17px;
  font-family: var(--title-font);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.strip-inner span {
  margin-right: 10px;
  font-size: 16px;
  vertical-align: middle;
}

.event-intro {
  padding-block: clamp(28px, 4vw, 48px);
  border-block: 1px solid var(--line);
}

.event-intro h2 {
  margin-top: 12px;
  font-size: clamp(30px, 3.5vw, 42px);
}

.event-intro-copy {
  max-width: 75ch;
  margin-top: 22px;
  color: #436781;
  font-size: 16px;
  line-height: 1.8;
}

.event-intro-copy p + p {
  margin-top: 16px;
}

.join-section {
  padding-block: 72px 80px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 34px;
}

h2 {
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  font-family: var(--title-font);
  color: var(--deep-sea);
}

.section-heading h2 {
  margin-top: 10px;
}

.section-heading > p {
  color: #55758d;
  font-size: 15px;
}

.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.mode-card {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid #abd3e5;
  border-top: 4px solid #5eb28d;
  backdrop-filter: blur(4px);
  padding: 30px 32px 0;
  box-shadow: 0 20px 30px #3f88a41a;
}

.in-person-card {
  border-top-color: #4aaed9;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: #3e9b78;
  margin-bottom: 22px;
}

.card-icon {
  width: 4.5rem; 
  height: auto;
}

.in-person-card .card-top {
  color: #2f91be;
}

.mode-number {
  font-family: var(--title-font);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

h3 {
  font-size: clamp(28px, 3vw, 36px);
  letter-spacing: 0;
  line-height: 1.1;
  font-family: var(--title-font);
  text-wrap: balance;
  color: #1c4e70;
}

.mode-card > p {
  flex: 1;
  font-size: 15px;
  color: #54758f;
  margin-top: 16px;
  max-width: 430px;
}

.mode-footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid #c4dce8;
  margin-top: 29px;
  padding-block: 19px;
  font-family: var(--title-font);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.mode-footer > span:last-child {
  color: #5a7c96;
  white-space: nowrap;
}

.location {
  color: #2b9067;
}

.in-person-card .location {
  color: #2f91be;
}

.location > span {
  font-size: 14px;
  margin-right: 4px;
}

.signup-cta {
  margin: 28px auto 56px;
}

.signup-cta h2 {
  margin-top: 10px;
  font-size: clamp(28px, 3.5vw, 40px);
}

.signup-intro {
  max-width: 720px;
  margin-top: 14px;
  font-size: 15px;
  color: #54758f;
}

.campus-contacts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 32px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.campus-contacts li {
  min-width: 0;
  border-top: 1px solid #c4dce8;
  padding-block: 18px;
}

.campus-contacts h3 {
  font-size: 19px;
  line-height: 1.3;
  text-wrap: initial;
  margin-bottom: 8px;
}

.campus-contacts a {
  display: block;
  width: fit-content;
  max-width: 100%;
  padding-block: 4px;
  color: var(--pine);
  font-size: 14px;
  overflow-wrap: anywhere;
  text-underline-offset: 4px;
}

.campus-contacts a:hover {
  color: var(--deep-sea);
}

.archive-section {
  border-block: 1px solid #bfd9e7;
  background: linear-gradient(180deg, #f7fdff 0%, #ecf8ff 100%);
}

.archive-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-block: 48px;
}

.archive-inner .eyebrow {
  color: #2d8e6f;
}

.archive-inner h2 {
  font-size: clamp(29px, 3vw, 38px);
  margin-top: 12px;
}

.archive-inner p:last-child {
  font-size: 14px;
  color: #54758f;
  margin-top: 14px;
}

.archive-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.archive-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border: 1px solid #b8d7e8;
  border-radius: 12px;
  text-decoration: none;
  background: #ffffffdb;
  transition:
    border-color 0.15s,
    background 0.15s,
    transform 0.15s;
}

.archive-links a > span:first-child {
  font-family: var(--title-font);
  font-size: 16px;
  font-weight: 700;
}

.archive-links a > span:last-child {
  color: #2f92bf;
  font-size: 23px;
  line-height: 1;
}

.archive-links a:hover {
  border-color: #7fb5d0;
  background: #f7fdff;
  transform: translateY(-2px);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-block: 28px;
  font-size: 12px;
  color: #55758d;
}

.footer-message {
  font-family: var(--title-font);
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #2d6889;
}

.site-footer a {
  text-underline-offset: 4px;
}

.site-footer a:hover {
  color: #2a8fbe;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes drift-in {
  from {
    opacity: 0;
    transform: translateX(24px) rotate(0deg);
  }
  to {
    opacity: 1;
    transform: translateX(0) rotate(0deg);
  }
}

@media (min-width: 1440px) {
  .hero {
    padding-block: 86px 104px;
  }
}

@media (max-width: 1000px) {
  .container {
    width: calc(100% - 48px);
  }

  .hero {
    gap: 36px;
    padding-block: 58px 70px;
  }

  h1 {
    font-size: clamp(32px, 4vw, 44px);
  }

  .hero-year {
    font-size: 64px;
  }

  .hero-tagline {
    font-size: 24px;
  }

  .button {
    font-size: 11px;
    padding: 13px 17px;
    gap: 14px;
  }

  .strip-inner {
    font-size: 11px;
  }

  .mode-card {
    padding-inline: 24px;
  }

  .footer-message {
    display: none;
  }
}

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-block: 42px 56px;
  }

  .hero-copy {
    max-width: 560px;
  }

  h1 {
    font-size: clamp(30px, 9vw, 48px);
  }

  .hero-year {
    font-size: clamp(54px, 14vw, 80px);
  }

  .hero-art {
    max-width: 500px;
    width: 100%;
    margin: 0 auto;
  }

  .header-inner {
    min-height: 84px;
  }

  .site-header nav {
    gap: 18px;
    font-size: 12px;
  }

  .strip-inner {
    justify-content: center;
    text-align: center;
    flex-wrap: wrap;
    row-gap: 8px;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 16px;
  }

  .section-heading > p br {
    display: none;
  }

  .join-section {
    padding-block: 52px;
  }

  .mode-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .mode-card {
    padding-top: 25px;
  }

  .signup-cta {
    padding: 22px;
  }

  .campus-contacts {
    grid-template-columns: 1fr;
  }

  .archive-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 420px) {
  .container {
    width: calc(100% - 32px);
  }

  .brand {
    gap: 9px;
    font-size: 11px;
  }

  .brand-subtitle {
    font-size: 8px;
  }

  .brand-icon {
    width: 28px;
    height: 28px;
  }

  .site-header nav {
    gap: 14px;
    font-size: 11px;
  }

  .site-header nav a:first-child {
    display: none;
  }

  .hero-year {
    font-size: 58px;
  }

  .year-spark {
    font-size: 33px;
  }

  .eyebrow {
    font-size: 10px;
  }

  .hero-description {
    font-size: 15px;
  }

  h2 {
    font-size: 30px;
  }

  h3 {
    font-size: 28px;
  }

  .mode-card {
    padding-inline: 20px;
  }

  .signup-cta {
    padding: 20px 16px;
  }

  .site-footer {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

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

  .hero-copy > .eyebrow,
  h1,
  .hero-tagline,
  .hero-description,
  .button,
  .hero-note,
  .hero-art {
    opacity: 1;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}