/* 폰트 크기 변수 적용 */
html {
  font-size: calc(var(--font-scale, 1) * 14px);
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 스크롤바 숨기기 */
textarea,
.overflow-y-auto {
  scrollbar-width: none;
}

textarea::-webkit-scrollbar,
.overflow-y-auto::-webkit-scrollbar {
  display: none;
}

/* 단어 단위 줄바꿈 */
.break-words {
  overflow-wrap: break-word;
  word-break: break-word;
}


/* 모달 배경 */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 40;
  backdrop-filter: blur(4px);
  transition: backdrop-filter 0.3s ease-out;
}

/* 모달 컨테이너 */
.modal-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 1rem;
}

/* 모달 */
.modal {
  background-color: #1f2937; /* bg-gray-800 */
  border-radius: 0.75rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  max-width: 95%;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}


/* 메시지 그룹 스타일 */
.message-content-wrapper {
  display: flex;
  flex-direction: column;
}

/* Floating Input Area Styles */
#input-area-wrapper #new-message-input {
  background-color: rgba(25, 32, 45, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

#input-area-wrapper #open-input-options-btn,
#input-area-wrapper #sticker-btn {
  background-color: rgba(25, 32, 45, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

#input-area-wrapper #send-message-btn {
  background-color: rgba(59, 130, 246, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.floating-panel {
  background-color: rgba(25, 32, 45, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 25px 5px rgba(100, 120, 200, 0.1);
}

#main-chat {
    position: relative;
}

#input-area-wrapper {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  padding-bottom: 1rem; 
}

#input-area-wrapper::before {
  content: "";
  position: absolute;
  top: -200px; 
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1; 
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  mask-image: linear-gradient(to top, black 20%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, black 20%, transparent 100%);
  pointer-events: none; 
}

#input-area-wrapper.transitions-enabled::before {
  transition: all 0.3s ease-in-out;
}

#input-area-wrapper.scrolled-to-bottom::before {
    top: -100px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    mask-image: linear-gradient(to top, black 5%, transparent 70%);
    -webkit-mask-image: linear-gradient(to top, black 5%, transparent 70%);
}

#new-message-input {
  transition: all 0.2s ease-in-out;
}

#new-message-input:focus {
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5); 
}


/* --- Mobile First Layout --- */


#app {
  display: flex;
  flex-direction: row;
}

#sidebar {
  display: none; /* Hidden by default on mobile */
}

#character-list-page-container,
#main-chat {
  width: 100%;
  /* height: 100vh; */ /* Removed to allow flex to control height */
  display: flex; /* Use flex for children */
  flex-direction: column;
}

.hidden {
    display: none !important;
}

/* --- Desktop Layout --- */
@media (min-width: 768px) {
  #app {
    flex-direction: row;
  }

  #sidebar {
    display: flex; /* Show sidebar on desktop */
    width: 320px; /* Or your preferred width */
    flex-shrink: 0;
  }

  #character-list-page-container {
    display: none; /* Hide character list page on desktop */
  }

  #main-chat {
    flex: 1;
    display: flex; /* Ensure it's a flex container */
  }
}

/* Tree-like structure for chat room list */
.character-group {
  position: relative;
}

.character-group .chat-room-list {
  position: relative;
}

.character-group.is-expanded::before {
  content: "";
  position: absolute;
  left: var(--tree-trunk-left);
  top: var(--tree-connector-top);
  height: var(--tree-connector-height);
  width: 2px;
  background-color: #4a5568;
  transition: height 0.2s ease-out;
}

.chat-room-list-item-wrapper {
  position: relative;
  padding-left: calc(var(--tree-trunk-left) + 15px);
}

.chat-room-list-item-wrapper::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--tree-trunk-left);
  width: 12px;
  height: 50%;
  border: 2px solid #4a5568;
  border-color: transparent transparent #4a5568 #4a5568;
  border-bottom-left-radius: 8px;
}

.chat-room-list-item-wrapper:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  bottom: 0;
  left: var(--tree-trunk-left);
  width: 2px;
  background-color: #4a5568;
}

@media (min-width: 768px) {
  #sidebar {
    transition: width 0.3s ease-in-out;
  }

  .sidebar-collapsed #sidebar {
    width: 0;
  }
}

/* --- Page Transition Animation --- */
#page-transition-container {
  perspective: 1200px;
  overflow: hidden;
}

#character-list-page-container,
#main-chat,
#settings-page-container,
#ai-settings-page-container,
#scale-settings-page-container,
#nai-settings-container {
  backface-visibility: hidden;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Initial State */
#character-list-page-container {
  transform: translateX(0);
  z-index: 10;
  opacity: 1;
}

#main-chat {
  transform: translateX(100%);
  z-index: 20; /* Chat is on top */
  opacity: 0.8;
}

#settings-page-container {
    transform: translateX(100%);
    z-index: 30; /* Settings on top of chat */
    opacity: 0.8;
}

#ai-settings-page-container {
    transform: translateX(100%);
    z-index: 40; /* AI Settings on top of settings */
    opacity: 0.8;
}

#scale-settings-page-container {
    transform: translateX(100%);
    z-index: 40; /* Scale Settings on top of settings */
    opacity: 0.8;
}

#nai-settings-container {
    transform: translateX(100%);
    z-index: 40; /* NAI Settings on top of settings */
    opacity: 0.8;
}

/* "Show Chat" State */
#page-transition-container.show-chat #character-list-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}

#page-transition-container.show-chat #main-chat {
  transform: translateX(0);
  opacity: 1;
}

/* "Show Settings" State */
#page-transition-container.show-settings #character-list-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}

#page-transition-container.show-settings #settings-page-container {
  transform: translateX(0);
  opacity: 1;
}

/* "Show AI Settings" State */
#page-transition-container.show-ai-settings #character-list-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}

#page-transition-container.show-ai-settings #settings-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}

#page-transition-container.show-ai-settings #ai-settings-page-container {
  transform: translateX(0);
  opacity: 1;
}

/* "Show Scale Settings" State */
#page-transition-container.show-scale-settings #character-list-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}

#page-transition-container.show-scale-settings #settings-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}

#page-transition-container.show-scale-settings #scale-settings-page-container {
  transform: translateX(0);
  opacity: 1;
}
/* "Show NAI Settings" State */
#page-transition-container.show-nai-settings #character-list-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}
#page-transition-container.show-nai-settings #settings-page-container {
  transform: translateX(-40%) scale(0.9);
  opacity: 0.5;
}
#page-transition-container.show-nai-settings #nai-settings-container {
  transform: translateX(0);
  opacity: 1;
}

button > svg {
  pointer-events: none;
}

.character-list-scrollbar {
  scrollbar-width: thin !important;
  scrollbar-color: rgba(255, 255, 255, 0.5) transparent !important;
}

.character-list-scrollbar::-webkit-scrollbar {
  display: block !important;
  -webkit-appearance: none;
  width: 7px;
}

.character-list-scrollbar::-webkit-scrollbar-thumb {
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 1px rgba(255, 255, 255, 0.5);
}

.message-bubble-me {
  background-color: rgba(37, 99, 235, 0.7);
}

.message-bubble-them {
  background-color: rgba(35, 42, 55, 0.7);
}

/* Added for long-press ripple effect */
.character-list-item {
  position: relative;
  overflow: hidden;
}