:root {
  --chicago-blue: #41B6E6;
  --chicago-red: #e4002b;
  --chicago-light: #f5f5f5;
  --chicago-dark: #333333;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--chicago-light);
  color: var(--chicago-dark);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

header {
  position: relative;
  background: linear-gradient(180deg, var(--chicago-blue) 60%, rgba(65, 182, 230, 0.85) 100%);
  color: white;
  padding: 2.5rem 0 6.5rem;
  overflow: hidden;
}

header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background: linear-gradient(0deg, rgba(65, 182, 230, 0.3) 0%, rgba(65, 182, 230, 0) 100%);
  z-index: 2;
}

.skyline {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 150px;
  background-image: url('images/chicago-skyline.svg');
  background-repeat: no-repeat;
  background-position: bottom center;
  background-size: contain;
  opacity: 0.7;
  z-index: 1;
}

.header-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.chicago-flag {
  display: flex;
  justify-content: center;
  margin: 0.5rem 0 1.5rem;
  position: relative;
  z-index: 3;
}

.flag-star {
  color: var(--chicago-red);
  font-size: 2.5rem;
  margin: 0 0.5rem;
  transition: transform 0.3s ease;
  font-family: 'Arial Unicode MS', sans-serif;
  line-height: 1;
  display: inline-block;
}

.section {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.section-title {
  color: var(--chicago-blue);
  margin-bottom: 1rem;
  font-size: 1.5rem;
  border-bottom: 2px solid var(--chicago-red);
  padding-bottom: 0.5rem;
  display: inline-block;
}

h3 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  color: var(--chicago-dark);
}

.calendar-links a {
  display: block;
  color: var(--chicago-blue);
  text-decoration: none;
  margin: 0.5rem 0;
  word-break: break-all;
}

.calendar-links a:hover {
  text-decoration: underline;
  color: var(--chicago-red);
}

.calendar-container {
  margin-top: 0.5rem;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.calendar-iframe {
  width: 100%;
  height: 800px;
  border: 0;
  background-color: white;
}

.rules-list {
  list-style-type: none;
  margin-left: 1rem;
}

.rules-list li {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.rules-list li::before {
  content: "•";
  color: var(--chicago-red);
  font-size: 1.2rem;
  position: absolute;
  left: 0;
}

.sub-item {
  margin-left: 1.5rem;
}

footer {
  text-align: center;
  padding: 1rem 0;
  background-color: var(--chicago-blue);
  color: white;
  margin-top: 2rem;
}

p {
  margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  header {
    padding: 2rem 0 5rem;
  }
  
  .skyline {
    height: 120px;
  }

  .calendar-iframe {
    height: 600px;
  }
}

.chicago-star {
  position: relative;
  width: 36px;
  height: 36px;
}

.chicago-star::before {
  content: "✶";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 36px;
  color: var(--chicago-red);
  font-family: 'Arial Unicode MS', 'Apple Symbols', 'Segoe UI Symbol', sans-serif;
  text-shadow: 0 0 1px rgba(228, 0, 43, 0.5);
}

/* Fallback for browsers that might not display the Unicode character correctly */
.chicago-star.fallback {
  background-image: url('images/chicago-star.svg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.chicago-star.fallback::before {
  content: "";
}