/* Base Reset and Fonts */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
  background: #f8f9fa;
  margin: 0;
  padding: 0;
  color: #212529;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Header/Footer */
header, footer {
  background-color: #0a2239;
  color: #ffffff;
  padding: 1rem 2rem;
  text-align: center;
}
header {
  padding-right: 3.5rem; /* add enough space for the button */
}

header h1 {
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
}

header p {
  font-size: 1rem;
  margin: 0;
}

/* Hamburger menu button */
#menu-toggle {
  display: none;
  font-size: 2rem;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  z-index: 1100;
}

/* Layout Container */
#container {
  display: flex;
  flex-direction: row;
  max-width: 1200px;
  margin: auto;
}

/* Sidebar */
#sidebar {
  width: 280px;
  background: #ffffff;
  border-right: 1px solid #dee2e6;
  padding: 1.5rem 1.5rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease-in-out;
}

#search {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid #adb5bd;
  border-radius: 4px;
}

/* Year Toggle & List */
.year-toggle {
  background: none;
  border: none;
  font-weight: bold;
  font-size: 1rem;
  padding: 0.5rem 0 0.5rem 1.5rem;
  width: 100%;
  text-align: left;
  cursor: pointer;
  color: #0a2239;
  position: relative;
}

.year-toggle::before {
  content: '▶';
  position: absolute;
  left: 0;
  top: 5px;
  transition: transform 0.3s ease;
}

.year-toggle[aria-expanded="true"]::before {
  transform: rotate(90deg);
}

.year-toggle:hover::before {
  opacity: 0.7;
}

.year-toggle:hover {
  text-decoration: underline;
}

.event-list {
  list-style: none;
  padding-left: 1rem;
  margin: 0;
}

.event-list li {
  margin: 0.25rem 0;
}

.event-list a {
  text-decoration: none;
  color: #212529;
  font-size: 0.9rem;
}

.event-list a:hover {
  text-decoration: underline;
}

/* Main Content */
main {
  flex: 1;
  padding: 2rem;
  position: relative;
  max-width: 800px;
}

/* Vertical timeline line */
@media (min-width: 769px) {
  #timeline::before {
    content: "";
    position: absolute;
    top: 0;
    left: 59px;
    width: 4px;
    height: 100%;
    background: #ccc;
  }
}
/* Hide search button by default */
#search-button {
  display: none;
  background: #0a2239;
  color: #ffffff;
  padding: 0.5rem 1rem;
  border: 1px solid #0a2239;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.2s ease;
}

#search-button:hover {
  background: #153755;
}


/* Container for input + button */
.search-container {
  display: flex;
  gap: 0.5rem; /* space between input and button */
  margin-bottom: 1rem;
}

/* Style input inside container */
.search-container #search {
  flex: 1; /* take available width */
  padding: 0.5rem;
  border: 1px solid #adb5bd;
  border-radius: 4px;
  font-size: 1rem;
}




/* Event card style */
.event {
  position: relative;
  margin-left: 62px;
  margin-right: 1rem;       /* Add this */
  margin-bottom: 2rem;
  background: #ffffff;
  padding: 1rem 1.5rem;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
  transition: background 0.2s ease;
  cursor: pointer;
  border: 1px solid #e0e0e0;
  max-width: calc(100vw - 4rem);  /* Prevent overflow */
  overflow-wrap: break-word;      /* Break long words */
  box-sizing: border-box;
}


/* Timeline dot */
@media (min-width: 769px) {
  .event::before {
    content: "";
    position: absolute;
    left: -42px;
    top: 1.2rem;
    width: 16px;
    height: 16px;
    background: #0a2239;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px #ccc;
  }
}

/* Title */
.event h2 {
  margin: 0;
  font-size: 1.1rem;
  color: #0a2239;
}

/* Expandable body */
.event .body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease;
  opacity: 0;
}

.event.expanded .body {
  max-height: 1000px;
  opacity: 1;
}

/* Image styling */
.event img {
  max-width: 100%;
  margin-top: 1rem;
  border: 1px solid #dee2e6;
  border-radius: 4px;
}
.most-recent::before {
  background-color: green;
  animation: pulse  2s infinite;
}

 @keyframes pulse {
      0% {
        transform: scale(1.2);
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0.5);
      }
      70% {
        transform: scale(1);
        box-shadow: 0 0 0 10px rgba(0, 123, 255, 0);
      }
      100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(0, 123, 255, 0);
      }
    }

/* Footer */
footer {
  font-size: 0.9rem;
}
/* Close button inside sidebar */
#menu-close {
  display: none;
  font-size: 2rem;
  background: none;
  border: none;
  color: #0a2239;
  position: absolute;
  top: 1rem;
  right: 1rem;
  cursor: pointer;
  z-index: 1101;
}

/* Responsive Design */
@media (max-width: 768px) {
  #search-button {
    display: inline-flex;
  }
  #container {
    flex-direction: column;
  }

  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    max-width: none;
    background: #ffffff;
    transform: translateX(-100%);
    z-index: 1000;
    box-shadow: 2px 0 5px rgba(0,0,0,0.2);
    transition: transform 0.3s ease-in-out;
    padding-top: 4rem; /* space for close button */

  }

  #sidebar.open {
    transform: translateX(0);
  }

  #menu-toggle {
    display: block;
  }

  #menu-close {
    display: block;
    margin-right: 1rem;
  }

  main {
    padding: 1.5rem;
  }

  .event {
    margin-left: 1rem;
    margin-right: 1rem;
  }
}