/* 
   Base Styles & Variables
 */

:root {
  --bg-color: #121212;
  --text-color: #f5f5f5;
  --card-bg: #1e1e1e;
  --accent-color: #ff4081;
  --secondary-accent: #03dac6;
  --border-color: #2c2c2c;
  --muted-text: #a5a5a5;
}

body.light {
  --bg-color: #ffffff;
  --text-color: #111111;
  --card-bg: #f2f2f2;
  --accent-color: #00796b;
  --secondary-accent: #4caf50;
  --border-color: #cccccc;
  --muted-text: #555555;
}

/* 
   Global Layout
 */

body {
  font-family: "Inter", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

header {
  background-color: var(--card-bg);
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

header h1 {
  font-size: 1.5rem;
  color: var(--accent-color);
  margin: 0.5rem 0;
}

/* 
   Navigation
 */

nav ul {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav button {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

nav button:hover,
nav button.active {
  background-color: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
}

/* 
   Sections
 */

main section {
  display: none;
  max-width: 1000px;
  margin: 2rem auto;
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

main section.active {
  display: block;
}

h2 {
  border-bottom: 2px solid var(--accent-color);
  padding-bottom: 0.3rem;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

/* 
   About Section
 */

#about a {
  color: var(--secondary-accent);
  text-decoration: none;
}

#about a:hover {
  text-decoration: underline;
}

/* 
   Dashboard / Stats
 */

.timeframe-selector {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.chart-container {
  background-color: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

canvas {
  width: 100%;
  max-height: 300px;
}

.totals {
  background-color: var(--bg-color);
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  text-align: center;
}

/* 
   Records Section
 */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

#records-table {
  width: 100%;
  border-collapse: collapse;
}

#records-table th,
#records-table td {
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem;
  text-align: left;
}

#records-table th {
  color: var(--accent-color);
}

#records-table tr:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

/* 
   Add/Edit Categories
 */

#category-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

#category-input {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-color);
  color: var(--text-color);
}

#category-form button {
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
}

#category-form button:hover {
  background-color: var(--secondary-accent);
  color: #000;
}

#category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

#category-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
}

#category-list button {
  background-color: transparent;
  border: 1px solid var(--accent-color);
  color: var(--accent-color);
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
}

#category-list button:hover {
  background-color: var(--accent-color);
  color: #fff;
}

/* 
   Settings
 */

.setting-group {
  margin-bottom: 1.5rem;
}

.setting-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-color);
}

select {
  width: 100%;
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-color);
  color: var(--text-color);
}

/* 
   Footer
 */

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--muted-text);
  border-top: 1px solid var(--border-color);
}

/* 
   Responsive Design
 */

@media (max-width: 1024px) {
  main section {
    margin: 1rem;
  }

  .timeframe-selector,
  .filters {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  nav ul {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  nav ul::-webkit-scrollbar {
    display: none;
  }

  #records-table thead {
    display: none;
  }

  #records-table tr {
    display: block;
    background-color: var(--card-bg);
    margin-bottom: 1rem;
    border-radius: 6px;
    padding: 1rem;
  }

  #records-table td {
    display: flex;
    justify-content: space-between;
    padding: 0.3rem 0;
  }

  #records-table td::before {
    content: attr(data-label);
    color: var(--muted-text);
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.2rem;
  }

  nav button {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
  }

  main section {
    padding: 1rem;
  }
}