:root {
  --ink: #111827;
  --ink-strong: #07111f;
  --muted: #536174;
  --line: #d7dde5;
  --panel: #ffffff;
  --page: #f7f9fb;
  --blue: #0b83d8;
  --orange: #d66b00;
  --cyan: #4fc3ff;
  --night: #101827;
  --night-panel: #172237;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

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

.shell {
  width: min(100% - 40px, 980px);
  margin: 0 auto;
}

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 96px;
  height: 96px;
  border-radius: 8px;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  color: var(--ink-strong);
  font-size: 24px;
  line-height: 1.2;
}

.brand small {
  color: #5d6a7c;
  font-size: 14px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nav a {
  border-radius: 8px;
  color: #344154;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 12px;
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  background: #edf3f9;
  outline: none;
}

.hero {
  background: #ffffff;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  align-items: center;
  gap: 48px;
  padding: 64px 0;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.blue {
  color: var(--blue);
}

.orange {
  color: var(--orange);
}

.cyan {
  color: var(--cyan);
}

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

h1 {
  color: var(--ink-strong);
  font-size: 48px;
  line-height: 1.15;
  margin: 18px 0 20px;
}

h2 {
  color: var(--ink-strong);
  font-size: 24px;
  line-height: 1.25;
  margin-bottom: 0;
}

h3 {
  color: var(--ink-strong);
  font-size: 20px;
  line-height: 1.3;
  margin: 14px 0 14px;
}

.hero-copy p:last-child {
  color: #435064;
  font-size: 18px;
  line-height: 1.75;
  margin-bottom: 0;
}

.hero-logo {
  max-width: 260px;
  justify-self: center;
}

.hero-logo img {
  aspect-ratio: 1;
  background: #070b18;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(17, 24, 39, 0.12);
  object-fit: cover;
}

.dates-band {
  background: #eef4f8;
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  padding: 40px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 1.1fr);
  align-items: end;
  gap: 32px;
}

.section-heading > p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 0;
}

.section-heading h2 {
  margin-top: 8px;
}

.date-grid,
.info-grid {
  display: grid;
  gap: 16px;
}

.date-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 28px;
}

.info-section {
  background: #ffffff;
  padding: 40px 0;
}

.info-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px 20px;
}

.card p:last-child {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 0;
}

.info-grid h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

.student-section {
  background: var(--night);
  color: #ffffff;
  padding: 40px 0;
}

.student-section h2 {
  color: #ffffff;
}

.student-section .section-heading > p {
  color: #c9d6e4;
}

.student-panel {
  background: var(--night-panel);
  border: 1px solid #2b3f5a;
  border-radius: 8px;
  margin-top: 28px;
  padding: 20px;
}

.student-list {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.student-list:empty {
  display: none;
}

.student-list a {
  border: 1px solid #375273;
  border-radius: 8px;
  display: block;
  padding: 14px 16px;
  text-decoration: none;
}

.student-list a:hover,
.student-list a:focus-visible {
  border-color: var(--cyan);
  outline: none;
}

.student-list strong,
.student-list span {
  display: block;
}

.student-list span {
  color: #c9d6e4;
  font-size: 14px;
  margin-top: 4px;
}

.empty-state {
  color: #dce7f4;
  font-size: 14px;
  margin: 0;
}

.empty-state.is-hidden {
  display: none;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 40px, 980px);
  }

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

  .hero-grid,
  .section-heading,
  .date-grid,
  .info-grid,
  .student-list {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 36px;
    padding: 48px 0;
  }

  h1 {
    font-size: 38px;
  }

  .hero-copy p:last-child {
    font-size: 18px;
  }

  .hero-logo {
    max-width: 260px;
  }
}