/* ------------------- HEADER ------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #0a447e;
  box-shadow: 20px 0 10px;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo img {
  position: relative;
  height: 90px;
  top: 49px;
}

/* Nav */
.nav {
  display: flex;
  gap: 2.72rem;
  align-items: center;
}

.nav a {
  text-align: center;
  text-decoration: none;
  font-weight: 600;
  color: #f1f8ff;
  transition-duration: 0.17s;
  font-size: 0.9rem;
}
.std-nav {
  transition-duration: 0.5s;
}
.std-nav:hover {
  padding-bottom: 6px;
  border-bottom: 3px solid #fff;
}
.sign-up-button {
  border: 1px solid #fff;
  padding: 0.6rem;
  border-radius: 0.25rem;
}

.sign-up-button:hover {
  background: #00a1c8;
  color: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0);
}

/* Mobile button */
.menu-toggle {
  display: none;
  font-size: 1.5rem;
}
/* Hide mobile nav on desktop */
.mobile-nav,
.mobile-overlay {
  display: none;
}
.mobile-nav a {
  color: #000;
  padding: 9px 0;
}

@media (max-width: 800px) {
  /* Hide desktop nav */
  .desktop-nav {
    display: none;
  }

  /* Show mobile nav and overlay when open */
  .mobile-nav {
    position: fixed;
    top: 0;
    right: -350px; /* hidden by default */
    width: 350px;
    height: 100%;
    background: white;
    box-shadow: -2px 0 12px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    transition: right 0.3s ease;
    z-index: 200;
  }

  .mobile-nav.is-open {
    right: 0;
  }

  .mobile-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 100;
  }

  .mobile-overlay.is-open {
    opacity: 1;
    pointer-events: auto;
  }

  /*----------------------------------- Burger Button --------------------------------*/

  .menu-toggle {
    display: block;
    background: none;
    border: 0;
    padding: 0.5rem;
    cursor: pointer;
  }

  /* Hamburger wrapper */
  .hamburger {
    width: 31px;
    height: 23px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  /* The three bars */
  .hamburger span {
    color: #fff;
    display: block;
    height: 3px;
    width: 100%;
    background: currentColor;
    border-radius: 2px;
    transition:
      transform 200ms ease,
      opacity 200ms ease;
  }
  .menu-toggle.is-open .hamburger span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
  }

  .menu-toggle.is-open .hamburger span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.is-open .hamburger span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
  }
}

@media (max-width: 500px) {
  .mobile-nav {
    right: -250px; /* hidden by default */
    width: 250px;
  }
}
/*-------------------------------- Hero --------------------------------*/

.hero {
  width: 100%;
  min-height: 37vh;
  background-image: url("images/aurora.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: -1;
}
.title h1 {
  color: #fff;
}
.the {
  font-size: 1rem;
}
.phys-assoc {
  font-size: 2.1rem;
}
.of-the {
  font-size: 1.1rem;
}
.uoa {
  font-size: 2.1rem;
}
.line {
  display: block;
  text-align: center;
}
/*-------------------------------- Events --------------------------------*/

.events {
  position: relative;
  padding: 2rem 1rem;
  background: #f9fafb;
}
.events::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(to left, #f9fafb, rgba(249, 250, 251, 0.1));
}
.section-title {
  text-align: center;
  margin-bottom: 2rem;
}

.events-carousel {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 1rem 0;
  max-width: 1200px;
  margin: 0 auto;
  -webkit-overflow-scrolling: touch;
}

.events-carousel::-webkit-scrollbar {
  display: none; /* clean look */
}
.event-card {
  flex: 0 0 280px; /* card width */
  height: 360px;
  border-radius: 1rem;
  overflow: hidden;
  position: relative;
  scroll-snap-align: start;

  background: var(--bg) center / cover no-repeat;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
  transition: transform 0.25s ease;
}

.event-card:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}
.event-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: white;
}

.event-overlay h3 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
}

.event-overlay p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  opacity: 0.9;
}
.event-overlay a {
  text-decoration: none;
  color: #76dfff;
  display: block;
  border: 1px solid white;
  border-radius: 3px;
  padding: 2px;
  transition-duration: 0.3s;
  text-align: center;
}
.event-overlay a:hover {
  background-color: #fff;
  color: #000;
}

/*------------------------------------ Merch ------------------------------------*/

.merch {
  padding: 3rem 1rem;
  background: #f9fafb;
}

.merch-grid {
  max-width: 1200px;
  margin: 0 auto;

  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.merch-card {
  background: #fff;
  border-radius: 1rem;
  overflow: hidden;

  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.merch-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
}

.merch-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.merch-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.merch-info {
  padding: 1.25rem 1.25rem 1.5rem;
}

.merch-info h3 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.merch-info p {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: #555;
}

.price {
  font-weight: 600;
  color: #111;
}

.merch-card:hover .merch-image img {
  transform: scale(1.05);
}

.merch-image img {
  transition: transform 0.3s ease;
}

.merch-card {
  border: 1px solid #eee;
  box-shadow: none;
}

.merch-card:hover {
  border-color: #ddd;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

/* ------------------------------------ supports ------------------------------------ */
.supports-title{
  padding-bottom: 2rem;
}
.supports {
  padding: 2rem 1.5rem 7rem 1.5rem;
  background: #ffffff;
}

.support {
  max-width: 1100px;
  margin: 0 auto 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}
#jane-street-logo{
  width: 260px;
}
.support:last-child {
  margin-bottom: 0;
}

/* Reverse layout for alternating rows */
.support--reverse {
  direction: rtl;
  text-align: right;
}

.support--reverse > * {
  direction: ltr;
}
/* Right-align text for reversed supports */
.support--reverse .support-text {
  text-align: right;
  margin-left: auto;
}

/* Mobile reset */
@media (max-width: 800px) {
  .support--reverse .support-text {
    text-align: center;
    margin-left: 0;
  }
}


.support-media {
  display: flex;
  align-items: center;
  justify-content: center;
}

.support-media img {
  max-width: 100%;
  max-height: 140px;
  object-fit: contain;
}

/* Text */
.support-text h3 {
  margin: 0 0 1rem;
  font-size: 1.6rem;
  color: #0a447e;
}

.support-text p {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  line-height: 1.75;
  color: #444;
  max-width: 480px;
}

.support-text a {
  font-weight: 600;
  text-decoration: none;
  color: #0a447e;
  transition: color 0.2s ease;
}

.support-text a:hover {
  color: #00a1c8;
}

/* -------------------- Mobile -------------------- */

@media (max-width: 800px) {
  .support {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .support--reverse {
    direction: ltr;
  }

  .support-text p {
    margin-left: auto;
    margin-right: auto;
  }
}

/* ---------------------------------------- About Section ------------------------------------- */
.about{
  display: block;
}

.about {
  position: relative;
  background: linear-gradient(rgba(10, 68, 126, 0.92), rgba(10, 68, 126, 0.92)), url("images/aurora.jpg"); /* reuse hero image */
  background-size: cover;
  background-position: center;
  padding: 6rem 1.5rem;
  color: #f1f8ff;
}

.about-inner {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.about .section-title {
  color: #ffffff;
}

.about-text {
  max-width: 720px;
  margin: 0 auto 4rem;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
}

.about-subtitle {
  font-size: 1.6rem;
  margin-bottom: 2.5rem;
  color: #ffffff;
}

/* ---------------------------- Exec Cards ---------------------------- */

.exec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
}

.exec-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
  border-radius: 1.2rem;
  padding: 2.5rem 1.5rem 2rem;
  text-align: center;
  transition-duration: 0.2s;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.exec-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}
.exec-photo {
  width: 96px;
  height: 96px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  overflow: hidden;

  border: 3px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
}

.exec-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.exec-card h4 {
  margin: 0.75rem 0 0.25rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #76dfff;
}

.exec-name {
  margin: 0 0 0.5rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: #ffffff;
}

.exec-desc {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.55;
}

/* ---------------------------- Footer ---------------------------- */

.site-footer {
  background: #071f3a;
  color: rgba(255, 255, 255, 0.85);
  padding: 4rem 1.5rem 2rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto 2.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 3rem;
}

.footer-brand img {
  height: 64px;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  max-width: 280px;
}

.footer-links h4,
.footer-social h4 {
  margin-bottom: 1rem;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #76dfff;
}

.footer-links a {
  display: block;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #ffffff;
}

/* Social icons */
.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;

  transition:
    background 0.25s ease,
    transform 0.25s ease;
}

.social-icons a:hover {
  background: #76dfff;
  transform: translateY(-2px);
}

.social-icons img {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(1);
}

.social-icons a:hover img {
  filter: none;
}

/* Bottom bar */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.5rem;
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
}