:root {
  --delft-900: #133a5c;
  --delft-800: #1f4e79;
  --delft-700: #2f6f9f;
  --delft-100: #e8f1f8;
  --porcelain: #f8fbfd;
  --white: #ffffff;
  --ink: #102235;
  --ink-soft: #2f3f51;
  --border-soft: #cddaea;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  color: var(--ink);
  background: var(--porcelain);
  line-height: 1.6;
}

.container {
  width: min(960px, 92vw);
  margin-inline: auto;
}

.section {
  padding: 3.25rem 0;
}

.hero {
  background: linear-gradient(180deg, var(--porcelain) 0%, var(--white) 100%);
  text-align: center;
  padding: 4rem 0 3rem;
}

.hero-inner {
  max-width: 780px;
}

.site-kicker {
  margin: 0 0 0.75rem;
  color: var(--delft-700);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--delft-900);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.8rem);
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 1.25rem;
  text-align: center;
}

h3 {
  font-size: 1.45rem;
}

.event-meta {
  margin: 1rem 0 0;
  font-size: clamp(1rem, 2.1vw, 1.4rem);
  color: var(--ink-soft);
}

.event-room {
  margin-top: 0.08rem;
  font-size: clamp(0.98rem, 1.9vw, 1.2rem);
  font-weight: 400;
}

.resource-links {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.resource-links a {
  display: inline-block;
  text-decoration: none;
  color: var(--white);
  background: var(--delft-900);
  border: 1px solid transparent;
  border-radius: 0.55rem;
  padding: 0.38rem 0.9rem;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.resource-links a:hover,
.resource-links a:focus-visible {
  background: var(--delft-800);
  border-color: var(--delft-700);
  transform: translateY(-1px);
}

.resource-links .disabled-link {
  background: #9aa7b5;
  border-color: #9aa7b5;
  color: #eef2f6;
  cursor: not-allowed;
  transform: none;
}

.resource-links .disabled-link:hover,
.resource-links .disabled-link:focus-visible {
  background: #9aa7b5;
  border-color: #9aa7b5;
  transform: none;
}

.organizers-inline {
  margin-top: 2.2rem;
}

.organizers-inline .organizer-grid {
  margin-top: 0;
  gap: 0.85rem;
}

.organizers-inline .organizer-card {
  background: transparent;
  border: 0;
  padding: 0;
  min-height: auto;
}

.organizers-inline .organizer-photo-frame {
  width: 88px;
  height: 88px;
  margin-bottom: 0.6rem;
}

.organizers-inline .organizer-card h3 {
  font-size: 1.12rem;
}

.organizers-inline .organizer-card p {
  margin-top: 0.3rem;
  font-size: 0.98rem;
}

.section-divider {
  padding: 0;
}

.section-divider hr {
  border: 0;
  border-top: 2px solid var(--border-soft);
  margin: 0.6rem 0 0;
}

.content-narrow {
  max-width: 940px;
}

.content-narrow p {
  margin: 0 auto 1rem;
  text-align: left;
  font-size: 1.06rem;
  color: var(--ink-soft);
}

.content-narrow p:last-child {
  margin-bottom: 0;
}

.objectives-heading {
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1.35rem;
  text-align: left;
}

.objectives-list {
  margin: 0;
  padding-left: 1.3rem;
  color: var(--ink-soft);
}

.objectives-list li {
  margin-bottom: 0.55rem;
}

.objectives-list li:last-child {
  margin-bottom: 0;
}

.organizer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.organizer-card {
  background: var(--porcelain);
  border: 1px solid var(--border-soft);
  border-radius: 0.85rem;
  padding: 1.25rem;
  text-align: center;
  min-height: 180px;
}

.organizer-photo-frame {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 0.9rem;
  overflow: hidden;
  border: 2px solid var(--border-soft);
}

.organizer-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.organizer-photo-catherine {
  transform: scale(1.08);
}

.organizer-photo-carsten {
  object-position: 34% 8%;
  transform: scale(1.1);
}

.organizer-card p {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.schedule {
  background: var(--delft-900);
}

.schedule h2 {
  color: var(--white);
}

.table-wrap {
  overflow-x: auto;
  max-width: 820px;
  margin: 0 auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: 0.85rem;
  overflow: hidden;
}

th,
td {
  padding: 0.82rem 0.95rem;
  text-align: left;
}

thead th {
  background: var(--delft-800);
  color: var(--white);
  font-weight: 600;
}

tbody tr:nth-child(odd) {
  background: var(--white);
}

tbody tr:nth-child(even) {
  background: var(--delft-100);
}

tbody td {
  border-top: 1px solid var(--border-soft);
}

.part-label {
  font-weight: 800;
  color: var(--delft-900);
  letter-spacing: 0.01em;
  width: 34%;
}

.topics-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border-soft);
  border-radius: 0.5rem;
  overflow: hidden;
}

.topics-list li {
  padding: 0.55rem 0.65rem;
  line-height: 1.45;
}

.topics-list li:nth-child(odd) {
  background: var(--white);
}

.topics-list li:nth-child(even) {
  background: var(--delft-100);
}

.topics-list li + li {
  border-top: 1px solid var(--border-soft);
}

.topics-list strong {
  color: var(--delft-900);
}

.subtopics-plain {
  margin-top: 0.2rem;
}

.subtopics-plain div {
  margin: 0.08rem 0;
}

.footer {
  background: var(--delft-900);
  color: var(--white);
  text-align: center;
  padding: 1.1rem 0;
}

.footer p {
  margin: 0;
}

@media (max-width: 860px) {
  .organizer-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 2.6rem 0;
  }
}