:root {
  --sa-hero-overlay: rgba(8, 12, 20, 0.6);
  --sa-hero-shadow: 0 18px 45px rgba(10, 20, 35, 0.25);
  --sa-card-border: rgba(20, 30, 45, 0.12);
  --sa-nav-bg: #162573;
  --sa-nav-text: #f3f5f8;
  --sa-nav-border: rgba(13, 27, 42, 0.2);
}

.sa-hero {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  width: 100vw;
  margin: -0.75rem calc(50% - 50vw) 2.5rem;
  min-height: clamp(28rem, 120vh, 44rem);
  padding: clamp(7rem, 14vw, 10rem) clamp(1.5rem, 6vw, 6rem) clamp(4rem, 7vw, 6rem);
  color: #f8fafc;
  background: linear-gradient(120deg, var(--sa-hero-overlay), rgba(6, 10, 20, 0.2)),
    url("/ece484-site/assets/images/eceb-wright-2.jpg") center/cover no-repeat;
  box-shadow: none;
}

.sa-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.sa-hero h1 {
  font-size: clamp(2.2rem, 3.8vw, 3.4rem);
  line-height: 1.05;
  margin: 0.4rem 0 1rem;
  color: #f8fafc;
}

.sa-hero-tag {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 600;
}

.sa-hero-lede {
  font-size: 1.1rem;
  max-width: 52ch;
}

.sa-hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.sa-section {
  margin: 2.5rem 0;
}

body.sa-home .md-main__inner,
body.sa-home .md-content__inner {
  padding-top: 0 !important;
}

body.sa-home .md-main__inner {
  margin-top: 0 !important;
}

body.sa-home .md-main,
body.sa-home .md-content {
  padding-top: 0 !important;
}

body.sa-home .md-content {
  margin-top: 0;
}

body.sa-home .md-main {
  background: transparent;
}

body.sa-home .md-container {
  background: transparent;
}

.md-header,
.md-tabs {
  background-color: var(--sa-nav-bg);
}

.md-header,
.md-header__title,
.md-header__button,
.md-tabs__link,
.md-search__icon {
  color: var(--sa-nav-text);
}

.md-tabs__link--active {
  color: var(--sa-nav-text);
  border-bottom-color: var(--sa-nav-text);
}

.md-search__form {
  background-color: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--sa-nav-border);
}

.md-search__input,
.md-search__input::placeholder {
  color: var(--sa-nav-text);
}

.sa-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.sa-card {
  border: 1px solid var(--sa-card-border);
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
  background: var(--md-default-bg-color);
  box-shadow: 0 8px 20px rgba(15, 25, 40, 0.08);
}

.sa-card h3 {
  margin-top: 0;
}

.sa-schedule {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.72rem;
}

.sa-schedule th,
.sa-schedule td {
  padding: 0.6rem 0.7rem;
  border-bottom: 1px solid var(--md-typeset-table-color);
  text-align: left;
  vertical-align: top;
}

.sa-schedule thead th {
  font-weight: 600;
}

.sa-schedule-special {
  background: rgba(22, 37, 115, 0.12);
}

.sa-schedule-highlight {
  background: rgba(22, 37, 115, 0.12);
}

.sa-schedule-special td {
  font-weight: 600;
}

.sa-schedule-highlight td {
  font-weight: 600;
}

html.js .sa-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js .sa-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html.js .sa-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 600px) {
  .sa-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

.platform-backdrop {
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  min-height: clamp(18rem, 50vh, 30rem);
  margin: 1.8rem 0;
  display: flex;
  align-items: flex-end;
  padding: clamp(1.6rem, 4vw, 2.4rem);
  color: #f8fafc;
  isolation: isolate;
}

.platform-backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--platform-image);
  background-position: center;
  background-size: cover;
  transform: scale(1.05);
  transition: transform 1.2s ease;
  z-index: -2;
}

.platform-backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(7, 14, 26, 0.65), rgba(7, 14, 26, 0.05));
  z-index: -1;
}

.platform-backdrop.is-visible::before {
  animation: platform-zoom 9s ease-in-out forwards;
}

.platform-backdrop__content {
  max-width: 40ch;
}

.platform-backdrop__content h3 {
  margin-bottom: 0.3rem;
  color: inherit;
}

.platform-backdrop__content p {
  margin: 0;
  color: inherit;
}

.platform-backdrop--f1tenth {
  --platform-image: url("/ece484-site/assets/images/f1tenthsketch.png");
}

.platform-backdrop--gem {
  --platform-image: url("/ece484-site/assets/images/gem-sketch.png");
}

.platform-backdrop--quadrotor {
  --platform-image: url("/ece484-site/assets/images/quadrotor-sketch.png");
}

@keyframes platform-zoom {
  0% {
    transform: scale(1.06);
  }
  50% {
    transform: scale(1.18);
  }
  100% {
    transform: scale(1.1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .platform-backdrop.is-visible::before {
    animation: none;
    transform: scale(1.05);
  }
}

.md-typeset img.team-avatar,
.md-typeset .team-avatar {
  width: 160px;
  height: 160px;
  border-radius: 50% !important;
  display: block;
  margin: 0 auto;
  overflow: hidden;
}

.md-typeset img.team-avatar {
  object-fit: cover;
  object-position: center;
  clip-path: circle(50% at 50% 50%);
}

.team-avatar--placeholder {
  background: rgba(22, 37, 115, 0.12);
  color: #162573;
  font-weight: 600;
  letter-spacing: 0.06em;
  align-items: center;
  justify-content: center;
  display: flex;
}