body {
  margin: 0;
  font-family: 'Fira Sans', sans-serif;
  background-color: #1b2640;
  color: #e5f4ff;
}

body.light-mode {
  background-color: #f9f9f9;
  color: #222;
}

header {
  background: linear-gradient(270deg, #1b2640, #283c63, #1b2640);
  background-size: 600% 600%;
  animation: gradientMove 15s ease infinite;
  padding: 1.5rem;
  text-align: center;
  border-bottom: 3px solid #a6ff00;
}

header h1 {
  margin: 0;
  color: #a6ff00;
  font-size: 2.5rem;
}

table {
  width: 100%;
  max-width: 800px;
  margin: 2rem auto;
  border-collapse: collapse;
  background-color: #223050;
  border-radius: 12px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  overflow-x: auto;
}

body.light-mode table {
  background-color: #fff;
  color: #222;
}

th, td {
  padding: 1rem;
  text-align: left;
  color: #e5f4ff;
  vertical-align: middle;
}

body.light-mode th, body.light-mode td {
  color: #222;
}

th {
  background-color: #2e3d5c;
  color: #a6ff00;
  font-size: 1.1rem;
}

body.light-mode th {
  background-color: #eee;
  color: #1b2640;
}

tr {
  border-bottom: 1px solid #34435f;
}

tr:nth-child(even) {
  background-color: #1f2a44;
}

tbody tr:hover {
  background-color: #2e3d5c;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.gold { background-color: #b8860b !important; color: black; }
.silver { background-color: #a9a9a9 !important; color: black; }
.bronze { background-color: #cd7f32 !important; color: black; }
.active { border-left: 4px solid #a6ff00; font-weight: bold; }

.fade-in {
  animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes gradientMove {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.refresh-btn {
  display: block;
  margin: 1rem auto;
  background-color: #a6ff00;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  color: #1b2640;
  font-size: 1rem;
}

.streak-badge {
  margin-left: 10px;
  font-weight: bold;
  color: #ff9800;
}

footer {
  text-align: center;
  padding: 1rem;
  color: #bcdcff;
}

#countdown, #last-updated {
  text-align: center;
  font-size: 0.9rem;
  margin-top: -1rem;
}

/* Progress bar styles */
.progress-bar-container {
  background: #40587b;
  border-radius: 12px;
  height: 18px;
  width: 100%;
  overflow: hidden;
  margin-top: 6px;
}

.progress-bar-fill {
  background: #a6ff00;
  height: 100%;
  width: 0%;
  border-radius: 12px 0 0 12px;
  transition: width 0.6s ease;
}

body.light-mode tr:nth-child(even) {
  background-color: #f5f5f5;  /* very light grey, subtle stripe */
}

body.light-mode tbody tr:hover {
  background-color: #d1d1d1; /* light hover effect */
}

/* Monthly tip styles */
#monthly-tip-container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1rem 1.5rem;
  background-color: #223050;
  color: #a6ff00;
  font-size: 1.2rem;
  border-radius: 12px;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
  font-style: italic;
}

body.light-mode #monthly-tip-container {
  background-color: #e9f5e9;
  color: #2a4d2a;
}

/* Section for highest streak in groups */
#highest-group-section {
  max-width: 800px;
  margin: 2rem auto;
  background-color: #283c63;
  border-radius: 12px;
  padding: 1rem 1.5rem;
  color: #a6ff00;
  box-shadow: 0 8px 16px rgba(0,0,0,0.3);
  font-size: 1.1rem;
}

/* Hyperlink styles */
a {
  color: #ffffff; /* white text for dark mode */
  text-decoration: none; /* optional - removes underline */
}

a:hover {
  color: #a6ff00; /* matches your accent colour */
  text-decoration: underline; /* optional hover effect */
}

/* Light mode hyperlinks */
body.light-mode a {
  color: #1b2640; /* dark text for light mode */
}

body.light-mode a:hover {
  color: #283c63; /* darker hover colour for light mode */
}