:root {
  --background-color: #f5f5f5;         /* Light gray background */
  --text-color-primary: #333333;       /* Dark text */
  --navbar-background-color: #e0e0e0;  /* Light navbar background */
  --accent-color: #2d50bf;            /* Slightly darker accent for contrast */
  --accent-color-hover: #6686ff;       /* Lighter hover accent */
  --sidebar-background-color: #e8e8e8; /* Light sidebar background */
  --input-background-color: #ffffff;   /* White input background */
  --border-color: #b0b0b0;             /* Lighter border */
  --tab-button-background-color: #d0d0d0; /* Light tab button background */
  --page-list-clickable-background-color: #d0d0d0; /* Light clickable background */
  --secondary-button-background-color: #b0b0b0; /* Light secondary button */
  --secondary-button-hover-background-color: #9999cc; /* Lighter purple hover */
  --crawl-button-background-color: #001b83;  /* Darker blue crawl button */
  --crawl-button-hover-background-color: #2e4bbc; /* Lighter blue hover */
  --generate-button-background-color: #4a8b6f; /* Keep generate button same */
  --generate-button-hover-background-color: #66b392; /* Keep generate hover same */
  --tab-btn-active-color: #ffffff;      /* White text for active tabs */
  --nav-link-active-color: #ffffff;     /* White text for active nav links */
  --modal-content-background: #ffffff;  /* White modal background */
  --logo-accent-color: #008aff;         /* Brighter blue for logo */
  --log-text-color: #0e006f;            /* Dark blue log text */
}
html.dark-mode {
 /* Dark Mode (default) */
 --background-color: #2b2a33;         /* Body background */
 --text-color-primary: #e0dede;       /* Main text color */
 --navbar-background-color: #3e3c4f;  /* Navbar & Header background */
 --accent-color: #ffab91;            /* Primary accent color (buttons, highlights) */
 --accent-color-hover: #ffccb3;       /* Accent color hover */
 --sidebar-background-color: #3e3c4f; /* Sidebar, Editor, Log background */
 --input-background-color: #35343f;   /* Input field background */
 --border-color: #5e5c75;             /* Borders for inputs, selects, etc. */
 --tab-button-background-color: #5e5c75; /* Tab button background */
 --page-list-clickable-background-color: #5e5c75; /* Page list clickable background */
 --secondary-button-background-color: #5e5c75; /* Download buttons, etc. */
 --secondary-button-hover-background-color: #8a83c1; /* Secondary button hover */
 --crawl-button-background-color: #6b659b;  /* Crawl button background */
 --crawl-button-hover-background-color: #8a83c1; /* Crawl button hover */
 --generate-button-background-color: #4a8b6f; /* Generate button background */
 --generate-button-hover-background-color: #66b392; /* Generate button hover */
 --tab-btn-active-color: #2b2a33;      /* Active tab button text color */
 --nav-link-active-color: #2b2a33;      /* Active nav link text color */
 --modal-content-background: #1f1e27;   /* Modal background */
 --logo-accent-color: #ffab91;         /* Logo gradient end color */
 --log-text-color: #d1d0d8;    
}
/* Light Mode */
html.light-mode {
  --background-color: #f5f5f5;         /* Light gray background */
  --text-color-primary: #333333;       /* Dark text */
  --navbar-background-color: #e0e0e0;  /* Light navbar background */
  --accent-color: #2d50bf;            /* Slightly darker accent for contrast */
  --accent-color-hover: #6686ff;       /* Lighter hover accent */
  --sidebar-background-color: #e8e8e8; /* Light sidebar background */
  --input-background-color: #ffffff;   /* White input background */
  --border-color: #b0b0b0;             /* Lighter border */
  --tab-button-background-color: #d0d0d0; /* Light tab button background */
  --page-list-clickable-background-color: #d0d0d0; /* Light clickable background */
  --secondary-button-background-color: #b0b0b0; /* Light secondary button */
  --secondary-button-hover-background-color: #9999cc; /* Lighter purple hover */
  --crawl-button-background-color: #001b83;  /* Darker blue crawl button */
  --crawl-button-hover-background-color: #2e4bbc; /* Lighter blue hover */
  --generate-button-background-color: #4a8b6f; /* Keep generate button same */
  --generate-button-hover-background-color: #66b392; /* Keep generate hover same */
  --tab-btn-active-color: #ffffff;      /* White text for active tabs */
  --nav-link-active-color: #ffffff;     /* White text for active nav links */
  --modal-content-background: #ffffff;  /* White modal background */
  --logo-accent-color: #008aff;         /* Brighter blue for logo */
  --log-text-color: #0e006f;            /* Dark blue log text */
}

/* Natural Mode */
html.natural-mode {
  --background-color: #f5f6e9;         /* Pale green-yellow background */
  --text-color-primary: #4a3c31;       /* Dark brown text */
  --navbar-background-color: #d9c8a9;  /* Light tan navbar */
  --accent-color: #8a9a5b;            /* Olive green accent */
  --accent-color-hover: #a8b57e;       /* Lighter olive hover */
  --sidebar-background-color: #e6decf; /* Light beige sidebar */
  --input-background-color: #fffcf2;   /* Off-white input background */
  --border-color: #b0a18e;             /* Muted tan border */
  --tab-button-background-color: #c9b99b; /* Light tan tab button */
  --page-list-clickable-background-color: #c9b99b; /* Light tan clickable */
  --secondary-button-background-color: #b0a18e; /* Tan secondary button */
  --secondary-button-hover-background-color: #c9b99b; /* Lighter tan hover */
  --crawl-button-background-color: #6b7c4a;  /* Darker green crawl button */
  --crawl-button-hover-background-color: #8a9a5b; /* Olive green hover */
  --generate-button-background-color: #4a8b6f; /* Keep generate button same */
  --generate-button-hover-background-color: #66b392; /* Keep generate hover same */
  --tab-btn-active-color: #ffffff;      /* White text for active tabs */
  --nav-link-active-color: #ffffff;     /* White text for active nav links */
  --modal-content-background: #fffcf2;  /* Off-white modal background */
  --logo-accent-color: #8a9a5b;         /* Olive green for logo */
  --log-text-color: #4a3c31;            /* Dark brown log text */
}

/* Ocean Mode */
html.ocean-mode {
  --background-color: #e6f0fa;         /* Light blue background */
  --text-color-primary: #1a3c5e;       /* Deep blue text */
  --navbar-background-color: #b3d9f2;  /* Pale blue navbar */
  --accent-color: #0077b6;            /* Ocean blue accent */
  --accent-color-hover: #0096d6;       /* Brighter blue hover */
  --sidebar-background-color: #cce5f7; /* Light blue sidebar */
  --input-background-color: #ffffff;   /* White input background */
  --border-color: #8ab9d6;             /* Soft blue border */
  --tab-button-background-color: #a3cce8; /* Pale blue tab button */
  --page-list-clickable-background-color: #a3cce8; /* Pale blue clickable */
  --secondary-button-background-color: #8ab9d6; /* Soft blue secondary button */
  --secondary-button-hover-background-color: #b3d9f2; /* Lighter blue hover */
  --crawl-button-background-color: #005f99;  /* Darker blue crawl button */
  --crawl-button-hover-background-color: #0077b6; /* Ocean blue hover */
  --generate-button-background-color: #4a8b6f; /* Keep generate button same */
  --generate-button-hover-background-color: #66b392; /* Keep generate hover same */
  --tab-btn-active-color: #ffffff;      /* White text for active tabs */
  --nav-link-active-color: #ffffff;     /* White text for active nav links */
  --modal-content-background: #ffffff;  /* White modal background */
  --logo-accent-color: #0077b6;         /* Ocean blue for logo */
  --log-text-color: #1a3c5e;            /* Deep blue log text */
}

/* Sunset Mode */
html.sunset-mode {
  --background-color: #fff3e6;         /* Warm peach background */
  --text-color-primary: #5e2b2b;       /* Dark reddish-brown text */
  --navbar-background-color: #ffd9b3;  /* Light orange navbar */
  --accent-color: #ff6f61;            /* Coral accent */
  --accent-color-hover: #ff8f7d;       /* Lighter coral hover */
  --sidebar-background-color: #ffe6cc; /* Pale orange sidebar */
  --input-background-color: #fffaf0;   /* Very light peach input */
  --border-color: #d9a385;             /* Soft orange border */
  --tab-button-background-color: #ffcc99; /* Light orange tab button */
  --page-list-clickable-background-color: #ffcc99; /* Light orange clickable */
  --secondary-button-background-color: #d9a385; /* Soft orange secondary button */
  --secondary-button-hover-background-color: #ffd9b3; /* Lighter orange hover */
  --crawl-button-background-color: #cc5e4e;  /* Darker coral crawl button */
  --crawl-button-hover-background-color: #ff6f61; /* Coral hover */
  --generate-button-background-color: #4a8b6f; /* Keep generate button same */
  --generate-button-hover-background-color: #66b392; /* Keep generate hover same */
  --tab-btn-active-color: #ffffff;      /* White text for active tabs */
  --nav-link-active-color: #ffffff;     /* White text for active nav links */
  --modal-content-background: #fffaf0;  /* Very light peach modal background */
  --logo-accent-color: #ff6f61;         /* Coral for logo */
  --log-text-color: #5e2b2b;            /* Dark reddish-brown log text */
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: var(--background-color);
  color: var(--text-color-primary);
  transition: background-color 0.3s, color 0.3s; /* Smooth transition */
}

.navbar {
  background: var(--navbar-background-color);
  padding: 10px 20px;
  display: flex;
  gap: 20px;
  border-bottom: 2px solid var(--accent-color);
  transition: background-color 0.3s;
}

.nav-link {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: bold;
  padding: 8px 15px;
  border-radius: 4px;
  transition: background-color 0.3s, color 0.3s;
}

.nav-link:hover {
  background: var(--accent-color-hover);
  color: var(--background-color);
}

.nav-link.active {
  background: var(--accent-color);
  color: var(--nav-link-active-color);
}
.nav-right {
    /* text-align: right; */
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: space-around;
}
.app { display: flex; flex-direction: column; min-height: 100vh; }
header {background: var(--navbar-background-color);
  padding: 15px 20px;
  display: flex
;
  justify-content: space-between;
  /* align-items: center; */
  border-bottom: 2px solid var(--accent-color);
  transition: background-color 0.3s;
  flex-direction: column;
}
header h1 { margin: 0; font-size: 24px; color: var(--accent-color); }
.crawl-controls { display: flex; gap: 10px; }
.url-input { padding: 8px; border: 1px solid var(--border-color); border-radius: 4px; background: var(--input-background-color); color: var(--text-color-primary); width: 300px; transition: background-color 0.3s, color 0.3s; }
.model-select { padding: 8px; border: 1px solid var(--border-color); border-radius: 4px; background: var(--input-background-color); color: var(--text-color-primary); width: 200px; margin-bottom: 10px; transition: background-color 0.3s, color 0.3s; }

.main { display: flex; flex: 1; padding: 20px; gap: 20px; }
.sidebar { width: 25%; background: var(--sidebar-background-color); padding: 15px; border-radius: 8px; transition: background-color 0.3s; }
.sidebar h2 { margin: 0 0 10px; color: var(--accent-color); }
.sidebar .url-input { width: 100px; }

.requirements-list { padding: 10px; background: var(--background-color); border-radius: 4px; transition: background-color 0.3s; }
.requirements-list h2 { color: var(--accent-color); font-size: 18px; }
.requirements-list h3 { color: var(--text-color-primary); font-size: 16px; }
.requirements-list ul { padding-left: 20px; list-style-type: disc; }
.requirements-list li { margin: 5px 0; color: var(--log-text-color); }

.editor-container { width: 50%; }
.editor { background: var(--sidebar-background-color); padding: 15px; border-radius: 8px; height: 100%; display: flex; flex-direction: column; transition: background-color 0.3s; }
.editor h2 { margin: 0 0 10px; color: var(--accent-color); }
.page-list { list-style: none; padding: 0; margin: 0; }
.page-list li { margin: 5px 0; }
.page-list .clickable { cursor: pointer; padding: 8px; background: var(--page-list-clickable-background-color); border-radius: 4px; color: var(--text-color-primary); transition: background-color 0.3s, color 0.3s; }
.page-list .clickable:hover { background: var(--accent-color-hover); color: var(--background-color); }
.page-list .active { background: var(--accent-color); color: var(--nav-link-active-color); }
.lesson-controls { margin: 10px 0; display: flex; gap: 10px; }
.lesson-count { padding: 8px; border: 1px solid var(--border-color); border-radius: 4px; background: var(--input-background-color); color: var(--text-color-primary); width: 60px; transition: background-color 0.3s, color 0.3s; }

.tabs { flex: 1; display: flex; flex-direction: column; }
.tab-headers { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 10px; }
.tab-btn { padding: 8px 15px; border: none; border-radius: 4px; background: var(--tab-button-background-color); color: var(--text-color-primary); cursor: pointer; transition: background-color 0.3s, color 0.3s; }
.tab-btn.active { background: var(--accent-color); color: var(--tab-btn-active-color); }
.tab-btn:hover { background: var(--accent-color-hover); color: var(--background-color); }
.tab-content { flex: 1; background: var(--background-color); padding: 10px; border-radius: 4px; overflow-y: auto; transition: background-color 0.3s; }
.content-display { padding: 10px; }
.content-display h2 { color: var(--accent-color); font-size: 18px; }
.content-display h3 { color: var(--text-color-primary); font-size: 16px; }
.content-display ul { padding-left: 20px; list-style-type: disc; }
.content-display li { margin: 5px 0; color: var(--log-text-color); }

.download-buttons { margin-top: 10px; display: flex; gap: 10px; }
.download-all { margin-top: 10px; display: flex; gap: 10px; align-items: center; }
.spinner { text-align: center; padding: 20px; color: var(--accent-color); font-weight: bold; }

.log-chat { width: 25%; }
.log { background: var(--sidebar-background-color); padding: 15px; border-radius: 8px; height: 100%; transition: background-color 0.3s; }
.log h2 { margin: 0 0 10px; color: var(--accent-color); }
.log pre { margin: 0; white-space: pre-wrap; font-size: 12px; color: var(--log-text-color); overflow-y: auto; max-height: calc(100% - 30px); }

.btn { padding: 8px 15px; border: none; border-radius: 4px; cursor: pointer; background: var(--accent-color); color: var(--log-text-color); font-weight: bold; transition: background-color 0.3s, color 0.3s; }
#filter-btn {color: var(--background-color)}
.btn:hover { background: var(--accent-color-hover); }
.crawl-btn { background: var(--crawl-button-background-color); }
.crawl-btn:hover { background: var(--crawl-button-hover-background-color); }
.generate-btn { background: var(--generate-button-background-color); }
.generate-btn:hover { background: var(--generate-button-hover-background-color); }
.download-btn { background: var(--secondary-button-background-color); }
.download-btn:hover { background: var(--secondary-button-hover-background-color); }

/* Login and Signup Styling */
.login-container {
  max-width: 500px;
  margin: 50px auto;
  padding: 30px;
  background: var(--input-background-color); /* Use input background for consistency */
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
  text-align: center;
  transition: background-color 0.3s;
}

.login-container h1 {
  color: var(--accent-color);
  margin-bottom: 20px;
}

.styled-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.styled-form input[type="text"],
.styled-form input[type="password"] {
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 16px;
  background: var(--input-background-color);
  color: var(--text-color-primary);
  transition: background-color 0.3s, color 0.3s;
}

.styled-form button[type="submit"] {
  padding: 12px 20px;
  font-size: 18px;
  border-radius: 4px;
  cursor: pointer;
  background: var(--accent-color);
  color: var(--background-color);
  border: none;
  font-weight: bold;
  transition: background-color 0.3s;
}

.styled-form button[type="submit"]:hover {
  background: var(--accent-color-hover);
}

.error {
  color: #d32f2f;
  background-color: #ffcdd2;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 15px;
  border: 1px solid #ef9a9a;
}

.signup-link {
  margin-top: 20px;
  font-size: 16px;
  color: var(--text-color-primary);
}

.signup-link a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: bold;
}

.signup-link a:hover {
  text-decoration: underline;
}

.batch-main {
  display: flex;
  flex-direction: row;
  flex: 1;
  padding: 20px;
  gap: 20px;
}

.batch-sidebar {
  width: 50%;
  background: var(--sidebar-background-color);
  padding: 15px;
  border-radius: 8px;
  transition: background-color 0.3s;
}

.batch-log {
  width: 50%;
  background: var(--sidebar-background-color);
  padding: 15px;
  border-radius: 8px;
  height: fit-content;
  transition: background-color 0.3s;
}

.search-sidebar {
  width: 25%;
  background: var(--sidebar-background-color);
  padding: 15px;
  border-radius: 8px;
  transition: background-color 0.3s;
}

.search-sidebar h2 {
  margin: 0 0 10px;
  color: var(--accent-color);
}

.search-sidebar h3 {
  margin: 10px 0 5px;
  color: var(--text-color-primary);
}

#search-bar {
  width: 95%;
  margin-bottom: 15px;
}

.filter-section {
  margin-bottom: 15px;
}

.lessons-container {
  flex: 1;
  padding: 15px;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.lesson-tile {
  background: var(--sidebar-background-color);
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  width:20rem;
  flex-direction: column;
  justify-content: space-between;
  transition: background-color 0.3s;
}

.lesson-tile h3 {
  color: var(--accent-color);
  margin: 0 0 10px;
  font-size: 18px;
}

.lesson-tile p {
  margin: 5px 0;
  color: var(--text-color-primary);
}

.tile-content {
  color: var(--log-text-color);
  font-size: 14px;
  margin: 10px 0;
  flex-grow: 1;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-tile .download-btn {
  align-self: flex-end;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: var(--modal-content-background);
  margin: 15% auto;
  padding: 20px;
  border: 1px solid var(--border-color);
  width: 80%;
  max-height: 80%;
  overflow-y: auto;
  position: relative;
  transition: background-color 0.3s;
}

.modal-title {
  padding: 10px;
  background: var(--background-color);
  border-radius: 4px;
  margin-bottom: 10px;
  transition: background-color 0.3s;
}

.modal-content-display {
  padding: 10px;
}

.close {
  position: sticky;
  top: 0px;
  left: 100%;
  display: block;
  width: 5%;
  padding: 10px;
  cursor: pointer;
  font-size: 20px;
  background: var(--accent-color);
  border-radius: 5px;
  text-align: center;
  color: var(--background-color);
  font-weight: 800;
  transition: background-color 0.3s;

}

.close:hover {
  background: var(--accent-color-hover);
}

.lesson-tile.clickable {
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.lesson-tile.clickable:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.lesson-tile.clickable:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.logo-container {
  flex: 0 0 auto;
  display: flex;
  justify-content: space-between;
}

.logo {
  font-family: 'Roboto Slab', serif;
  font-size: clamp(6.2rem, 3vw, 1.8rem);
  font-weight: 700;
  background: linear-gradient(90deg, var(--logo-accent-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.9;
}


.fa-user {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--accent-color);
    font-size: xx-large;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .main {
    flex-direction: column;
  }
  .search-sidebar, .lessons-container, .log-chat {
    width: 95%;
  }
  .lesson-grid {
    grid-template-columns: 1fr;
  }
  .batch-main {
    flex-direction: column;
  }
  .batch-sidebar, .batch-log, .editor-container, .log-chat, .search-sidebar {
    width: 95%;
    margin-bottom: 20px;
  }
  .tab-headers {
    justify-content: center;
  }
  .tab-btn {
    padding: 8px 15px;
    font-size: 0.95em;
  }
  .login-container {
    padding: 30px;
  }
}

/* Toggle Button Styling */
.theme-toggle {
  background: none;
  border: none;
  color: var(--accent-color);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  transition: color 0.3s;
}

.theme-toggle:hover {
  color: var(--accent-color-hover);
}


/* Dropdown styles (shared with user dropdown) */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.dropdown-menu {
  display: none;
  position: absolute;
  background-color: #2b2a33; /* Dark theme default */
  min-width: 120px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.2);
  z-index: 1000;
}

.dropdown-menu.show {
  display: block;
  background-color: var(--background-color);
  color: var(--text-color-primary) ;
}

.dropdown-item {
  /*color: #e0dede;*/
  padding: 8px 16px;
  text-decoration: none;
  display: block;
}

.dropdown-item:hover {
  background-color: #3c3b4f;
}

/* Confirmation modal */
.confirm-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 2000; /* Above lesson modal */
}

.confirm-content {
  background: #2b2a33; /* Dark theme default */
  padding: 20px;
  border-radius: 5px;
  max-width: 400px;
  width: 90%;
  color: #e0dede;
}

.confirm-buttons {
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
}

.confirm-btn, .cancel-btn {
  padding: 8px 16px;
  cursor: pointer;
}

/* Theme adjustments */
.light-mode .dropdown-menu, .light-mode .confirm-content {
  background-color: var(--background-color);
  color: var(--text-color-primary);
}
.light-mode .dropdown-item:hover {
  background-color: #e0e0e0;
}

.natural-mode .dropdown-menu, .natural-mode .confirm-content {
  background-color: var(--background-color);
  color: var(--text-color-primary);
}
.natural-mode .dropdown-item:hover {
  background-color: #d7ccc8;
}

.ocean-mode .dropdown-menu, .ocean-mode .confirm-content {
  background-color: var(--background-color);
  color: var(--text-color-primary);
}
.ocean-mode .dropdown-item:hover {
  background-color: #b2ebf2;
}

.sunset-mode .dropdown-menu, .sunset-mode .confirm-content {
  background-color: var(--background-color);
  color: var(--text-color-primary);
}
.sunset-mode .dropdown-item:hover {
  background-color: #ffab91;
}

.lesson-plan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
  padding: 10px;
}

.lesson-plan-tile {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 15px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.lesson-plan-tile:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.lesson-plan-tile h3 {
  margin: 0 0 10px;
  font-size: 1.2em;
  color: #333;
}

.lesson-plan-tile p {
  margin: 5px 0;
  font-size: 0.9em;
  color: #666;
}

.lesson-plan-tile .tile-content {
  font-size: 0.85em;
  color: #777;
  max-height: 100px;
  overflow: hidden;
}

.toggle-label {
  margin-left: 10px;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
}

.toggle-label input[type="checkbox"] {
  margin-right: 5px;
}

.tile-header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.display-icon {
  position: absolute;
  top: 5px;
  right: 5px;
  font-size: 18px;
  color: gold; /* Adjust as desired */
}
.slide-tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); /* Responsive grid */
  gap: 15px; /* Space between tiles */
  margin-top: 15px;
  padding: 10px;
  max-height: 400px; /* Limit height of the grid area */
  overflow-y: auto; /* Allow scrolling if many slides */
  background-color: var(--background-alt, #f8f9fa); /* Slightly different background */
  border: 1px solid var(--border-color-light, #e0e0e0);
  border-radius: 4px;
}

.slide-tile {
  background-color: var(--background-color, #fff);
  border: 1px solid var(--border-color, #ccc);
  border-radius: 5px;
  padding: 10px 12px;
  cursor: pointer;
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
  overflow: hidden; /* Prevent content overflow */
  display: flex; /* Use flex for layout */
  flex-direction: column;
}

.slide-tile:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.slide-tile-header {
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-color-light, #eee);
  padding-bottom: 5px;
}

.slide-tile-header h5 {
  margin: 0;
  font-size: 1em; /* Adjust size as needed */
  color: var(--text-color-headings, #333);
  white-space: nowrap; /* Prevent title wrapping */
  overflow: hidden;
  text-overflow: ellipsis; /* Add ellipsis for long titles */
}

.slide-tile-content-preview {
  font-size: 0.85em;
  color: var(--text-color-secondary, #555);
  line-height: 1.4;
  flex-grow: 1; /* Allow preview to take remaining space */
  /* Limit lines using webkit properties (optional, browser support varies) */
  /* display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden; */
}
.slide-tile-content-preview p { /* Target p tag if using dangerouslySetInnerHTML */
  margin: 0;
}
.lesson-tile { /* Ensure this class is used for student lessons */
  /* ... existing tile styles ... */
  display: flex;
  flex-direction: column; /* Stack header, details, preview vertically */
}

.tile-header h3 {
  white-space: pre-wrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 5px;
}

.tile-details {
  font-size: 0.9em;
  color: var(--text-color-secondary, #555);
  margin-bottom: 10px; /* Space below details block */
}

.tile-details p {
  margin: 2px 0; /* Compact spacing for details */
  line-height: 1.3;
}

.tile-content-preview { /* Specific class for preview text area */
  font-size: 0.85em;
  color: var(--text-color-muted, #777);
  line-height: 1.4;
  margin-top: auto; /* Push preview to bottom if tile height varies */
  padding-top: 8px;
  border-top: 1px dashed var(--border-color-light, #eee); /* Separator */
}
.tile-content-preview p {
  margin: 0;
}


/* Sidebar Styling Updates */
.lesson-plans-sidebar {
  /* Adjust width, position, etc. if needed */
  /* background-color: var(--background-alt); */
  /* padding: 15px; */
}

.lesson-plans-sidebar h2 {
  font-size: 1.2em;
  margin-bottom: 15px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

/* Styles for small plan tiles in sidebar */
.lesson-plan-tile.small {
  padding: 8px 10px;
  margin-bottom: 8px;
  background-color: var(--background-color);
  border: 1px solid var(--border-color-light);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  position: relative; /* For absolute positioning of icon/tag */
}
.lesson-plan-tile.small:hover {
  background-color: var(--hover-background);
}

.lesson-plan-tile.small h4 {
  margin: 0 0 4px 0;
  font-size: 0.9em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-plan-tile.small p {
  margin: 0;
  font-size: 0.8em;
  color: var(--text-color-secondary);
}
.display-icon.small {
  position: absolute;
  top: 5px;
  right: 8px;
  font-size: 0.8em;
}
.plan-tag {
  font-size: 0.7em;
  background-color: var(--primary-color-light);
  color: var(--primary-color-dark);
  padding: 1px 4px;
  border-radius: 3px;
  margin-left: 5px;
  font-weight: bold;
}

/* Spinner for sidebar */
.spinner.small {
  width: 20px;
  height: 20px;
  border-width: 3px;
  margin: 10px auto; /* Center in sidebar */
}


.tree .table { width: 100%; margin-bottom: 20px; font-size: 0.9em; }
.tree .tree-row td { padding: 6px; vertical-align: top; }
.tree .main-plan td { padding-left: 10px; background-color: #f8f9fa; font-weight: bold; }
.tree .subject-plan td { padding-left: 30px; background-color: #e9ecef; }
.tree .teacher-lesson td { padding-left: 50px; background-color: #dee2e6; }
.tree .student-lesson td { padding-left: 70px; background-color: #ced4da; }
.tree .edit-form { display: none; margin-top: 5px; }
.tree .edit-form.active { display: block; }
.tree .edit-form input, .tree .edit-form select, .tree .edit-form textarea { max-width: 200px; }
/* Responsive Adjustments */
@media (max-width: 768px) {
  .main {
    flex-direction: column;
  }
  .search-sidebar, .lessons-container, .log-chat {
    width: 95%;
  }
  .lesson-grid {
    grid-template-columns: 1fr;
  }

  .batch-main {
      flex-direction: column; /* Stack sidebar and log vertically on smaller screens */
  }
  .batch-sidebar, .batch-log, .editor-container, .log-chat, .search-sidebar {
      width: 95%; /* Full width for sidebar and editor on smaller screens */
      margin-bottom: 20px; /* Add margin between stacked sections */
  }
  .tab-headers {
      justify-content: center; /* Center tabs on smaller screens */
  }
  .tab-btn {
      padding: 8px 15px;
      font-size: 0.95em;
  }
  .login-container {
      padding: 30px;
  }
}