:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --muted: #f1f4f9;
  --text: #0f172a;
  --text-muted: #4b5563;
  --accent: #1f7ae0;
  --accent-strong: #0f5db2;
  --border: #e5e7eb;
  --shadow: 0 15px 40px rgba(15, 23, 42, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-strong);
}

p {
  margin: 0 0 1rem;
  color: var(--text-muted);
}

h1, h2, h3 {
  margin: 0 0 0.75rem;
  color: var(--text);
  letter-spacing: -0.02em;
}

.top-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 5vw;
  background: rgba(247, 248, 251, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-left: 0;
}

.brand-text strong {
  display: block;
  font-size: 1rem;
}

.brand-text small {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-weight: 600;
}

.nav a {
  color: var(--text);
  padding: 0.35rem 0.1rem;
}

.nav a:hover {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow);
}

.btn.primary:hover {
  background: var(--accent-strong);
}

.btn.secondary {
  background: #e8f2ff;
  color: var(--accent-strong);
  border-color: #c7ddff;
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.hero {
  padding: 4rem 0 3rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.hero__banner {
  width: 100%;
  min-height: 420px;
  background: url("assets/background_mit_jacky.png") center/cover no-repeat;
  background-color: #dfe8f6;
}

.hero__body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  padding: 0 5vw;
  align-items: start;
}

.hero__content h1 {
  font-size: clamp(2.4rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.05rem;
  max-width: 640px;
}

.hero__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1.4rem 0;
}

.hero__highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.8rem;
  margin-top: 1rem;
}

.highlight {
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.highlight__title {
  display: block;
  font-weight: 700;
  color: var(--text);
  font-size: 1.1rem;
}

.highlight__text {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.hero__panel .panel {
  background: linear-gradient(145deg, #ffffff 0%, #f4f7fb 100%);
  border-radius: 18px;
  padding: 1.75rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.panel__title {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.panel__list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  gap: 0.6rem;
}

.panel__list li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  color: var(--text-muted);
}

.dot {
  width: 10px;
  height: 10px;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(31, 122, 224, 0.08);
  flex-shrink: 0;
}

.tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: #e8f2ff;
  color: var(--accent-strong);
  font-weight: 600;
  font-size: 0.9rem;
}

.photo-note {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.9rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.07);
}

.photo-note img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.photo-note strong {
  color: var(--text);
}

.section {
  padding: 3.5rem 5vw;
}

.section--alt {
  background: #eef2f7;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__header {
  max-width: 840px;
  margin-bottom: 2rem;
}

.section__lead {
  font-size: 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--accent-strong);
  margin: 0 0 0.5rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid.two {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid.three {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.6rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.05);
}

.card.muted {
  background: var(--muted);
}

.card.lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card.lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.6rem;
  color: var(--text-muted);
}

.checklist li {
  position: relative;
  padding-left: 1.4rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
}

.pill-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
  color: var(--text-muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: #e8f2ff;
  color: var(--accent-strong);
  font-weight: 700;
  margin-right: 0.5rem;
}

.icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: #e8f2ff;
  color: var(--accent-strong);
  display: grid;
  place-items: center;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.timeline {
  border-left: 2px solid #d7deea;
  margin-left: 0.6rem;
  display: grid;
  gap: 1.4rem;
}

.timeline__item {
  position: relative;
  padding-left: 1.5rem;
}

.timeline__dot {
  position: absolute;
  left: -0.6rem;
  top: 0.35rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--surface);
  border: 5px solid var(--accent);
  box-shadow: 0 0 0 6px rgba(31, 122, 224, 0.08);
}

.timeline__meta {
  color: var(--text-muted);
  font-weight: 600;
  margin: 0.1rem 0 0.4rem;
}

.support {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.contact {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  gap: 0.75rem;
}

.contact li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  color: var(--text-muted);
}

.contact span {
  font-weight: 600;
  color: var(--text);
}

.events {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.events li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.6rem;
}

.events strong {
  display: block;
  color: var(--text);
}

.events p {
  margin: 0.1rem 0 0;
}

.link {
  font-weight: 700;
}

.small {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer {
  padding: 2rem 5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer__meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--text-muted);
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .nav a:not(.btn) {
    display: none;
  }

  .top-bar {
    padding: 0.85rem 5vw;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }

  .photo-note {
    grid-template-columns: 1fr;
  }

  .photo-note img {
    height: 160px;
  }
}

@media (max-width: 640px) {
  .contact li {
    flex-direction: column;
    align-items: flex-start;
  }

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

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