/* Define CSS Variables for the default (Light) theme */
:root {
  --bg-color: #f8f8f8;
  --container-bg: #ffffff;
  --text-color: #333;
  --heading-color: #555;
  --subtle-text-color: #777;
  --border-color: #eee;
  --button-bg: #f0f0f0;
  --button-border: #ddd;
  --button-hover-bg: #e5e5e5;
  --link-color: #007bff;
  --link-hover-color: #0056b3;
  --status-free-color: #28a745; /* Green */
  --status-busy-color: #dc3545; /* Red */
  --preset-bg: #f0f0f0;
  --preset-border: #ccc;
  --preset-active-bg: #007bff;
  --preset-active-color: #ffffff;
  --preset-hover-bg: #e0e0e0;

  /* Transition for smooth theme switching */
  --transition-speed: 0.3s;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-color: #22272e;
  --container-bg: #2d333b;
  --text-color: #cdd9e5;
  --heading-color: #adbac7;
  --subtle-text-color: #768390;
  --border-color: #444c56;
  --button-bg: #373e47;
  --button-border: #5d6878;
  --button-hover-bg: #444c56;
  --link-color: #58a6ff;
  --link-hover-color: #80bfff;
  --status-free-color: #3fb950;
  --status-busy-color: #f85149;
  --preset-bg: #373e47;
  --preset-border: #5d6878;
  --preset-active-bg: #316dca;
  --preset-active-color: #cdd9e5;
  --preset-hover-bg: #444c56;
}

/* Belmont Light Theme */
[data-theme="belmont-light"] {
  --bg-color: #f0f0f0; /* Light Grey */
  --container-bg: #ffffff;
  --text-color: #333;
  --heading-color: #003865; /* Belmont Navy */
  --subtle-text-color: #555;
  --border-color: #ddd;
  --button-bg: #e0e0e0;
  --button-border: #ccc;
  --button-hover-bg: #d0d0d0;
  --link-color: #c8102e; /* Belmont Red */
  --link-hover-color: #a00d24; /* Darker Red */
  --status-free-color: #003865; /* Belmont Navy for Free */
  --status-busy-color: #c8102e; /* Belmont Red for Busy */
  --preset-bg: #e0e0e0;
  --preset-border: #ccc;
  --preset-active-bg: #003865; /* Belmont Navy */
  --preset-active-color: #ffffff;
  --preset-hover-bg: #d0d0d0;
}

/* Belmont Dark Theme */
[data-theme="belmont-dark"] {
  --bg-color: #001f38; /* Darker Navy */
  --container-bg: #002c4f; /* Slightly lighter Navy */
  --text-color: #f0f0f0; /* Light Grey/White */
  --heading-color: #ffffff;
  --subtle-text-color: #b0b0b0;
  --border-color: #004a80; /* Mid Navy for borders */
  --button-bg: #003865; /* Belmont Navy */
  --button-border: #004a80;
  --button-hover-bg: #004a80;
  --link-color: #e7536b; /* Lighter Red */
  --link-hover-color: #ff7a8f;
  --status-free-color: #ffffff; /* White for Free */
  --status-busy-color: #e7536b; /* Lighter Red for Busy */
  --preset-bg: #003865;
  --preset-border: #004a80;
  --preset-active-bg: #c8102e; /* Belmont Red */
  --preset-active-color: #ffffff;
  --preset-hover-bg: #004a80;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
  justify-content: center;
  align-items: flex-start; /* Align items to the top */
  min-height: 100vh;
  padding-top: 20px; /* Add some padding at the top */
  transition: background-color var(--transition-speed),
    color var(--transition-speed);
}

.container {
  width: 100%;
  max-width: 500px; /* Max width for larger screens */
  padding: 15px;
  background-color: var(--container-bg);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  box-sizing: border-box; /* Include padding in width */
  transition: background-color var(--transition-speed);
}

h1 {
  text-align: center;
  color: var(--heading-color);
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.5em;
}

/* Theme Selector Styles */
.theme-selector {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin: 10px 0 15px;
  flex-wrap: wrap;
}

.theme-button {
  padding: 5px 10px;
  border-radius: 4px;
  border: 1px solid var(--button-border);
  background-color: var(--button-bg);
  color: var(--text-color);
  cursor: pointer;
  font-size: 0.85em;
  transition: background-color 0.2s, transform 0.2s;
}

.theme-button:hover {
  background-color: var(--button-hover-bg);
}

.theme-button.active {
  background-color: var(--preset-active-bg);
  color: var(--preset-active-color);
  transform: scale(1.05);
}

/* Exploration mode toggle */
.time-display-container {
  text-align: center;
  margin-bottom: 15px;
  position: relative;
}

.explore-button {
  background-color: transparent;
  border: none;
  color: var(--link-color);
  font-size: 0.85em;
  padding: 5px 10px;
  cursor: pointer;
  text-decoration: underline;
  margin-top: 5px;
  transition: color var(--transition-speed);
}

.explore-button:hover {
  color: var(--link-hover-color);
}

/* Exploration controls */
.explore-controls {
  background-color: var(--bg-color);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 15px;
  transition: all var(--transition-speed);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.explore-controls.hidden {
  display: none;
}

/* Date navigation */
.date-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.nav-btn {
  background-color: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text-color);
  border-radius: 4px;
  padding: 5px 10px;
  cursor: pointer;
  font-size: 1em;
  transition: background-color var(--transition-speed);
}

.nav-btn:hover {
  background-color: var(--button-hover-bg);
}

#selected-date {
  font-weight: bold;
  min-width: 140px;
  text-align: center;
  color: var(--heading-color);
}

/* Time presets - segmented control style */
.time-presets {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
  overflow-x: auto; /* For smaller screens */
  padding: 5px 0;
}

.time-preset {
  background-color: var(--preset-bg);
  border: 1px solid var(--preset-border);
  color: var(--text-color);
  border-right: none;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.9em;
  flex: 1;
  min-width: 60px;
  transition: background-color var(--transition-speed),
    color var(--transition-speed), border-color var(--transition-speed);
}

.time-preset:first-child {
  border-radius: 4px 0 0 4px;
}

.time-preset:last-child {
  border-radius: 0 4px 4px 0;
  border-right: 1px solid var(--preset-border);
}

.time-preset.active {
  background-color: var(--preset-active-bg);
  color: var(--preset-active-color);
  border-color: var(--preset-active-bg);
}

.time-preset:hover:not(.active) {
  background-color: var(--preset-hover-bg);
}

/* Reset button */
.reset-container {
  display: flex;
  justify-content: center;
}

.reset-btn {
  background-color: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text-color);
  border-radius: 4px;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 0.85em;
  transition: background-color var(--transition-speed);
}

.reset-btn:hover {
  background-color: var(--button-hover-bg);
}

/* Current time display when exploring */
.exploring #current-time {
  font-style: italic;
}

#current-time {
  text-align: center;
  font-size: 0.9em;
  color: var(--subtle-text-color);
  margin-bottom: 20px;
  transition: color var(--transition-speed);
}

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

#status-list li {
  display: flex; /* Use flexbox for alignment */
  justify-content: space-between; /* Space out name and status */
  align-items: flex-start; /* Align items to the top */
  padding: 12px 5px;
  border-bottom: 1px solid var(--border-color);
  transition: border-color var(--transition-speed);
}

#status-list li:last-child {
  border-bottom: none;
}

.student-name {
  font-weight: bold;
  margin-right: 10px; /* Space between name and status */
  flex-shrink: 0; /* Prevent name from shrinking */
}

.status-container {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  flex-grow: 1; /* Allow status to take remaining space */
}

.status {
  text-align: right; /* Align status text to the right */
  font-size: 0.95em;
  transition: color var(--transition-speed);
}

.next-available {
  font-size: 0.85em;
  color: var(--subtle-text-color);
  margin-top: 4px;
  text-align: right;
  font-style: italic;
  transition: color var(--transition-speed);
}

.status.free {
  color: var(--status-free-color);
  font-weight: bold;
}

.status.busy {
  color: var(--status-busy-color);
}

/* Footer Styles */
.app-footer {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
  font-size: 0.85em;
  transition: border-color var(--transition-speed);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.filter-section {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.filter-toggle {
  background-color: transparent;
  border: none;
  color: var(--link-color);
  font-size: 0.9em;
  padding: 5px 10px;
  cursor: pointer;
  text-decoration: underline;
  transition: color var(--transition-speed);
}

.filter-toggle:hover {
  color: var(--link-hover-color);
}

.filter-controls {
  width: 100%;
  margin-top: 10px;
  background-color: var(--bg-color);
  border-radius: 6px;
  padding: 12px;
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed);
}

.filter-controls.hidden {
  display: none;
}

.filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
  justify-content: center;
}

.student-filter {
  display: flex;
  align-items: center;
  background-color: var(--button-bg);
  border: 1px solid var(--button-border);
  border-radius: 4px;
  padding: 5px 10px;
  cursor: pointer;
  transition: background-color var(--transition-speed),
    border-color var(--transition-speed), color var(--transition-speed);
}

.student-filter:hover {
  background-color: var(--button-hover-bg);
}

.student-filter.selected {
  background-color: var(--preset-active-bg);
  color: var(--preset-active-color);
  border-color: var(--preset-active-bg);
}

.student-filter input {
  display: none; /* Hide the actual checkbox */
}

.student-filter span {
  margin-left: 5px;
}

.filter-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.filter-action {
  background-color: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text-color);
  border-radius: 4px;
  padding: 5px 10px;
  cursor: pointer;
  font-size: 0.85em;
  transition: background-color var(--transition-speed);
}

.filter-action:hover {
  background-color: var(--button-hover-bg);
}

.footer-info {
  display: flex;
  justify-content: space-between;
  color: var(--subtle-text-color);
  font-size: 0.85em;
  padding: 0 5px;
}

/* Hidden student style */
#status-list li.hidden {
  display: none;
}