/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

a{
  text-decoration: none;
}

/* Body Base */
body {
  font-family: 'Segoe UI', sans-serif;
  color: #e0e0e0;
  background: url("street.jpg") no-repeat center center/cover;
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
.top_header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 10, 10, 0.9);
  padding: 15px 40px;
  border-bottom: 1px solid #2a2a2a;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.6);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site_title {
  font-family: "Consolas", monospace;
  color: #b6aaff;
  font-size: 1.8rem;
  text-shadow: 0 0 8px rgba(182, 170, 255, 0.4);
}

.nav_bar a {
  text-decoration: none;
  color: #e0e0e0;
  margin-left: 25px;
  font-weight: bold;
  position: relative;
  transition: color 0.3s ease;
}

.nav_bar a:hover {
  color: #b6aaff;
}

.nav_bar a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: #b6aaff;
  transition: width 0.3s;
}

.nav_bar a:hover::after {
  width: 100%;
}

/* Main Content */
.content_area {
  flex: 1;
  overflow-y: auto;
  padding: 40px 20px 60px;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

/* Project Sections */
.project_section {
  text-align: center;
  margin-bottom: 100px;
}

.project_section h2 {
  font-family: "Consolas", monospace;
  font-size: 1.6rem;
  color: #b6aaff;
  margin-bottom: 25px;
  text-shadow: 0 0 10px rgba(182, 170, 255, 0.4);
}

/* Grid of Activity Buttons */
.activity_grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.activity_btn {
  background: rgba(25, 25, 25, 0.85);
  border: 2px solid #3a3a3a;
  border-radius: 8px;
  color: #e0e0e0;
  padding: 20px 40px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px rgba(0,0,0,0.4);
}

.activity_btn:hover {
  background: rgba(100, 85, 180, 0.9);
  color: #fff;
  transform: translateY(-5px);
  box-shadow: 0 0 15px rgba(182, 170, 255, 0.6);
}

/* Footer */
.footer {
  background: #0d0d0d;
  color: #a6a6a6;
  text-align: center;
  padding: 15px 0;
  border-top: 1px solid #2a2a2a;
  font-size: 0.9rem;
}