:root {
  --primary-color: #2196f3;
  --secondary-color: #f5f5f5;
  --text-color: #333;
  --accent-color: #1976d2;
  --bg-color: white;
  --header-bg: #ffffff;
  --card-bg: #ffffff;
  --border-color: #e0e0e0;
  --hover-bg: #f8f8f8;
  --spacing: 1rem;
}

html {
  min-height: 100vh;
  background-color: var(--secondary-color);
}

body {
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing);
  color: var(--text-color);
}

header {
  background-color: var(--header-bg);
  padding: 2rem;
  margin-bottom: 2rem;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
  font-size: 2rem;
  font-weight: 500;
  text-align: center;
  color: var(--primary-color);
  margin: 0;
}

/* Grid Layout */
main {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* Modern Event Card */
.event-card {
  background-color: var(--card-bg);
  border-radius: 4px;
  padding: 1.5rem;
  transition: transform 0.2s;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.event-card:hover {
  transform: translateY(-2px);
}

.name {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.date {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 1rem;
}

.age {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.countdown {
  font-size: 0.9rem;
  color: var(--accent-color);
  font-weight: 500;
}

/* Table Layout */
.events-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  margin-top: 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.events-table th,
.events-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.events-table th {
  background-color: var(--primary-color);
  color: white;
}

.event-card.travel {
  border-left: 4px solid #4caf50;
  /* Green color for travel events */
}

/* Table styles for travel event type */
.events-table tr.travel td:first-child {
  border-left: 3px solid #4caf50;
}

.event-card.birthday {
  border-left: 4px solid var(--primary-color);
}

.event-card.event {
  border-left: 4px solid purple;
}

.event-card.anniversary {
  border-left: 4px solid #e91e63;
  /* Pink color for anniversaries */
}

/* Add event type indicators */
.event-card::before {
  content: attr(data-type);
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  opacity: 0.6;
}

/* Table styles for different event types */
.events-table tr.birthday td:first-child {
  border-left: 3px solid var(--primary-color);
}

.events-table tr.event td:first-child {
  border-left: 3px solid purple;
}

.events-table tr.anniversary td:first-child {
  border-left: 3px solid #e91e63;
}

/* Type column styling */
.events-table td:nth-child(3) {
  text-transform: capitalize;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: 1rem;
  }

  main {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .events-table {
    display: block;
    overflow-x: auto;
  }
}