/* 🌒 Dark Mode Overrides */

.dark-mode {
  --bg-main: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --hover-bg: #2c3849;
  --focus-outline: #60a5fa;
  --card-bg: #1e293b;
  --shadow-color: rgba(0, 0, 0, 0.4);
}

.dark-mode body {
  background: var(--bg-main);
  color: var(--text-primary);
}

.dark-mode .sidebar {
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  box-shadow: -2px 0 8px var(--shadow-color);
}

.dark-mode .search input,
.dark-mode .filter-dropdown select,
.dark-mode .top-prompt-form textarea {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.dark-mode .search input::placeholder, 
.dark-mode .top-prompt-form textarea::placeholder {
  color: var(--text-secondary);
}

.dark-mode button:hover,
.dark-mode input:hover,
.dark-mode select:hover,
.dark-mode textarea:hover {
  background-color: var(--hover-bg);
  box-shadow: 0 0 5px whitesmoke;
}

.dark-mode button:focus,
.dark-mode input:focus,
.dark-mode select:focus,
.dark-mode textarea:focus {
  outline: 1px solid var(--focus-outline);
}

.dark-mode .history-item,
.dark-mode .main .output .chat-exchange {
  background: var(--card-bg);
  color: var(--text-primary);
}

.dark-mode .clear-all-history-btn:hover,
.dark-mode .delete-chat-btn:hover {
  background-color: var(--text-primary);
}

.dark-mode .history-item span {
  color: var(--text-secondary);
}


.dark-mode .sidebar h4 {
  color: var(--text-primary);
}

.dark-mode .chat-prompt p,
.dark-mode .chat-response p {
  color: var(--text-primary);
}

.dark-mode .reset-option {
  color: var(--text-secondary);
}

.dark-mode .control-panel button,
.dark-mode .top-prompt-form .filter-btn {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.dark-mode ::-webkit-scrollbar-thumb {
  background: var(--border-color);
}

.dark-mode .history-item.active {
  background-color: #0f172a;
}

#themeIcon {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#themeToggleBtn:active #themeIcon {
  transform: scale(0.9);
  opacity: 0.7;
}

/* Transition */

html, body {
  transition:
    background-color 0.4s ease,
    color 0.4s ease,
    border-color 0.4s ease,
    box-shadow 0.4s ease;
}

body.theme-transitioning {
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.header, .main, .sidebar, button, input, textarea {
  transition:
    background-color 0.4s ease,
    color 0.4s ease,
    border-color 0.4s ease,
    box-shadow 0.4s ease;
}

/* Scrollbar */

::-webkit-scrollbar {
  width: 12px; 
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #888;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* Global styles */ 

*, ::before, ::after {
  box-sizing: border-box;
}

:root {
  --aura-gradient: linear-gradient(90deg, #a855f7, #3b82f6, #14b8a6);
}

.new-chat-btn,
.main .generate-btn,
.main .title {
  background: var(--aura-gradient);
}

button:hover,
input:hover,
select:hover, textarea:hover {
  box-shadow: 0 0 5px rgba(56, 58, 61, 0.5);
}

button:focus,
input:focus,
select:focus, textarea:focus {
  outline: 1px solid #ccc;
}

body {
  margin: 0;
  color: #333;
  font-family: 'Segoe UI', sans-serif;
  background: #f9f9f9;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */

.sidebar {
  position: fixed; 
  top: 0;
  right: 0;
  height: 100vh;
  width: 70vw;
  max-width: 280px;
  min-width: 200px;
  padding: 1rem;
  background-color: #fff;
  border-left: 1px solid #ddd;
  box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
  transform: translateX(100%); 
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  z-index: 1000; 
}

.sidebar.active {
  transform: translateX(0); 
  opacity: 1;
}

.sidebar .new-chat-btn {
  display: block;
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.6rem;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  margin-top: 1rem;
  color: white;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search {
  position: relative;
  display: block;
  margin-bottom: 0.8rem;
}

.search input {
  width: 100%;
  height: 2.2rem;
  font-size: 0.8rem;
  text-align: left;
  padding-left: 2.5rem;
}

.search i  {
  position: absolute;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  font-size: 1rem;
  color: #888;
  pointer-events: none;
}

/* Shared styles */

.search input, .filter-dropdown select {
  border: 1px solid #ccc;
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Filter styles */

.prompt-form .filter-dropdown {
  text-align: left;
  margin-bottom: .5rem;
  max-height: 0;                
  opacity: 0;                   
  overflow: hidden;             
  pointer-events: none;         
  visibility: hidden;           
  transition: opacity 0.4s ease, max-height 0.4s ease;
}

.prompt-form .filter-dropdown select {
  width: 15%;
  padding: 0.5rem;
  font-size: 0.75rem;
  appearance: none;    
  -webkit-appearance: none;
  -moz-appearance: none;
  text-align: center;
}

.prompt-form .filter-dropdown.show {          
  max-height: 200px;
  opacity: 1;                  
  pointer-events: auto;        
  visibility: visible;         
}

/* History section */

.history-list {
  height: calc(100vh - 11.5rem);
  overflow-y: auto;
  margin-bottom: 1rem;
}

.history-header, .search-header {
  display: flex;
  justify-content: space-between;
  padding-bottom: 0.8rem;
}

.history-title {
  font-size: 0.9rem;
  margin: 0;
  color: #333;
  align-self: center;
}

.clear-all-history-btn {
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
}

.history-item {
  display: block;
  border: 0.5px solid #ccc;
  padding: 0.3rem;
  margin: 0 0 .5rem;
  font-size: 0.8rem;
  background: #f0f0f0;
  border-radius: 7px;
}

.history-item p {
  margin: 0 0 0.3rem;
}

.history-item span {
  display: block;
  font-size: 0.8rem;
  font-style: italic;
  color: #666;
}

.history-item .history-content .stamp {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.history-item .history-content .stamp .delete-chat-btn{
  border: none;
  font-size: 1rem;
  padding: 0.25rem 0.4rem 0;
  color: #615a5a;
  cursor: pointer;
  border-radius: 50%;
  text-align: center;
}

.history-item.active {
  background-color: #e0e0e0;
  border-left: 4px solid #007bff; 
  font-weight: bold;
}

/* Search history section */

.middle-section {
  display: none;
}

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

/* Main content */

.main {
  padding: 1.8rem .9rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.header .title {
  font-size: 2rem;
  font-weight: bold;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.control-panel {
  display: flex;
  gap: 1rem;
}

.control-panel button, 
.top-prompt-form .filter-btn {
  font-size: 1.2rem;
  padding: 0.25rem 0.4rem 0;
  color: #615a5a;
  background-color: #f0f0f0;
  border: none;
  border-radius: 8px; 
  cursor: pointer;
  transition: border-color 0.5s ease, box-shadow 0.5s ease;
}

.top-prompt-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.top-prompt-form textarea {
  flex: 1;
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 0.95rem;
  resize: none; 
  overflow-wrap: break-word;
}

.top-prompt-form .generate-btn {
  color: white;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
}

.main .output {
  height: calc(100vh - 12.5rem);
  max-height: calc(100vh - 13rem);
  overflow-y: auto;
  transition: max-height 0.4s ease-in-out;
}

.main .output.height {
  max-height: calc(100vh - 15rem);
}

.main .output .chat-exchange {
  font-family: monospace;
  background: #f0f0f0;
  border-radius: 8px;
  padding: 0.5rem 1rem 1rem;
  margin-bottom: 1rem;
}

.chat-prompt p {
  margin-bottom: .5rem;
}

.chat-prompt p, .chat-response p {
  color: #333;
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-response p {
    margin: 0;
    padding: 0;
}

#text {
  padding-top: .5rem;
}

.response-content {
    margin-bottom: 0;
    padding-bottom: 0;
}

.reset-option {
  color: #888;
  font-style: italic;
}

.footer p {
  font-family: monospace;
  font-size: .7rem;
  text-align: center;
}

/* Responsive styles */

@media (max-width: 320px) {
  .sidebar {
    width: 100vw;
  }
}

@media (min-width: 390px) {
  .main {
    flex: 1;
    padding: 1.8rem 1.5rem;
  }

  .prompt-form {
    gap: 1rem;
  }

}

 @media (min-width: 768px) {
  .sidebar {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 250px;
    transform: translateX(100%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
  }

  .sidebar.active {
    transform: translateX(0);
    opacity: 1;
  }

  .main {
    margin-right: 0;
    transition: margin-right 0.3s ease, padding 0.3s ease;
  }

  .sidebar.active ~ .main {
    margin-right: 250px; 
    margin-left: auto;
  }

  .sidebar-hidden {
    padding: 3rem 2.5rem;
  }
}

@media (min-width: 1024px) {
  .prompt-form .filter-dropdown select {
    width: 10%;
  }
  .prompt-form .filter-dropdown {
    text-align: right;
  }
  .sidebar-hidden {
    padding: 2rem 3rem;
  }
}

@media (min-width: 1280px) {
  .sidebar-hidden {
    padding: 2rem 3.5rem;
  }
}

@media (min-width: 1536px) {
  .sidebar-hidden {
    padding: 2.5rem 4rem;
  }
  
}