/* shared-styles.css */

/* Apply base styles and theme color variable */
/* 1. 颜色变量定义 */
:root {
    --theme-color: #3b82f6;
    /* 浅色主题 */
    --background-color-light: #f3f4f6;
    --content-bg-color-light: #ffffff;
    --hover-bg-color-light: #fafafa;
    --text-color-primary-light: #1f2937;
    --text-color-secondary-light: #6b7280;
    --border-color-light: #e5e7eb;
    /* 深色主题 */
    --background-color-dark: #000000; 
    --content-bg-color-dark: #1c1c1e; 
    --hover-bg-color-dark: #2C2C2E;   
    --text-color-primary-dark: #ffffff;
    --text-color-secondary-dark: #8E8E93; 
    --border-color-dark: #38383A;     
}

/* 2. 主题应用 */
body {
    background-color: var(--background-color-light);
    color: var(--text-color-primary-light);
}
html.dark body {
    background-color: var(--background-color-dark);
    color: var(--text-color-primary-dark);
}

/* 3. 基础布局和组件样式 (浅色) */
.app-header, .app-dock {
    background-color: rgba(255, 255, 255, 0.8);
    border-color: var(--border-color-light);
}
main.main-content, .group-header {
    background-color: var(--background-color-light);
}
.list-item, .modal-content, .dropdown-menu, .bg-white {
    background-color: var(--content-bg-color-light);
}
.list-item:hover, .dropdown-menu-item:hover {
    background-color: var(--hover-bg-color-light);
}

/* 4. 深色模式覆盖 (关键修复) */
html.dark .app-header,
html.dark .app-dock {
    background-color:  rgb(28, 28, 30); /* var(--content-bg-color-dark) with opacity */
    border-color: var(--border-color-dark);
}
html.dark main.main-content,
html.dark .group-header {
    background-color: var(--background-color-dark);
    color: var(--text-color-secondary-dark);
}
/* 覆盖所有白色背景的元素 */
html.dark .bg-white,
html.dark .list-item,
html.dark .modal-content,
html.dark .dropdown-menu {
    background-color: var(--content-bg-color-dark);
    color: var(--text-color-primary-dark);
}
/* 覆盖所有浅灰色背景的元素 */
html.dark .bg-gray-50,
html.dark .bg-gray-100,
html.dark .bg-gray-200 {
    background-color: var(--background-color-dark);
}

/* 修复文字颜色 */
html.dark .text-gray-800, html.dark .text-gray-900, html.dark .dropdown-menu-item {
    color: var(--text-color-primary-dark);
}
html.dark .text-gray-400, html.dark .text-gray-500, html.dark .text-gray-600, html.dark .text-gray-700 {
    color: var(--text-color-secondary-dark);
}

/* 修复边框颜色 */
html.dark .border-b, html.dark .border-t, html.dark .border,
html.dark .border-gray-100, html.dark .border-gray-200, html.dark .border-gray-300 {
    border-color: var(--border-color-dark) !important;
}

/* 修复表单元素 */
html.dark input, html.dark textarea, html.dark select {
    background-color: var(--background-color-dark) !important;
    color: var(--text-color-primary-dark) !important;
    border-color: var(--border-color-dark) !important;
}
html.dark input:focus, html.dark textarea:focus, html.dark select:focus {
    border-color: var(--theme-color) !important;
    box-shadow: 0 0 0 1px var(--theme-color) !important;
}
html.dark input::placeholder, html.dark textarea::placeholder {
    color: var(--text-color-secondary-dark);
}
html.dark input[type="checkbox"], html.dark input[type="radio"] {
    filter: invert(0.9) hue-rotate(180deg);
}

/* 修复特定按钮 */
html.dark .secondary-btn, html.dark .bg-gray-200 {
    background-color: #4b5563;
    color: var(--text-color-primary-dark);
}
html.dark .secondary-btn:hover, html.dark .bg-gray-200:hover {
    background-color: #6b7280;
}
html.dark .bg-red-50 {
    background-color: #450a0a !important;
    border-color: #7f1d1d !important;
    color: #fda4af !important;
}
html.dark .bg-red-50:hover {
    background-color: #7f1d1d !important;
}

/* 修复特定页面组件 */
html.dark #theme-preview-container,
html.dark .custom-btn:hover {
    background-color: var(--background-color-dark) !important;
}
html.dark .sticker-grid-item.border-dashed {
    background-color: var(--content-bg-color-dark);
    border-color: var(--border-color-dark);
}
html.dark #world-book-list .list-item,
html.dark .custom-select-container,
html.dark .custom-select-button,
html.dark .custom-select-dropdown {
    background-color: var(--content-bg-color-dark);
}
html.dark #world-book-list .list-item:hover,
html.dark .custom-select-option:hover {
    background-color: var(--hover-bg-color-dark);
}


/* 为我们自定义的列表项定义样式 */
.interactive-list-item {
    transition: background-color 0.15s ease-in-out; /* 添加一个平滑的过渡效果 */
}

/* 浅色模式下的悬停效果 */
.interactive-list-item:hover {
    background-color: var(--hover-bg-color-light); /* 使用我们在:root中定义的浅色悬停颜色 */
}

/* 深色模式下的悬停效果 */
html.dark .interactive-list-item:hover {
    background-color: var(--hover-bg-color-dark); /* 使用我们在:root中定义的深色悬停颜色 */
}

html {
    height: 100%;
}

body {
    /* Use the JS-calculated height variable. Fallback to 100vh for safety. */
    height: var(--app-height, 100vh);
    overflow: hidden; /* Prevent body from scrolling */
}

/* This rule targets the main container div on almost every page.
  By changing h-screen (100vh) to h-full (100%), it will now correctly
  size itself to the body, which has our reliable --app-height.
*/
.w-full.h-screen.mx-auto.flex.flex-col {
    height: 100%; /* Use h-full instead of h-screen */
}

main.flex-grow {
    flex: 1 1 auto;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* 在iOS上启用流畅滚动 */
    
}

header.app-header, footer.app-dock {
    flex-shrink: 0;
}


/* --- Header --- */
.app-header {
    background-color: rgba(var(--content-bg-color-rgb, 255, 255, 255), 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 20;
    
    /* 关键修改：在这里统一控制所有内边距 */
    padding-top: env(safe-area-inset-top);
    padding-left: 1rem;  /* 1rem 相当于 p-4 的水平边距 */
    padding-right: 1rem; /* 1rem 相当于 p-4 的水平边距 */
    padding-bottom: 1rem;/* 1rem 相当于 p-4 的底部边距 */
}

.app-header h1, .app-header h2 {
    color: var(--text-color-primary);
}


.header-btn {
    color: #555555; /* Darker grey for better visibility */
    transition: color 0.2s ease-in-out;
}

/* All header buttons will use the theme color on hover */
.header-btn:hover, .header-btn.active {
    color: var(--theme-color);
}

/* --- Dropdown Menu --- */
.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.05);
    overflow: hidden;
    transition: opacity 0.2s, transform 0.2s;
    transform-origin: top right;
}

.dropdown-menu-item {
    display: block;
    padding: 10px 20px;
    color: #333;
    white-space: nowrap;
}

.dropdown-menu-item:hover {
    background-color: rgba(0,0,0,0.05);
}



/* --- Bottom Navigation Dock --- */
.app-dock {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(var(--content-bg-color-rgb, 255, 255, 255), 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    padding: 8px 0;
    padding-bottom: calc(10px + env(safe-area-inset-bottom));
}

.dock-item {
    color: #6b7280; /* Default icon and text color */
    transition: color 0.2s ease-in-out;
}

.dock-item.active, .dock-item:hover {
    color: var(--theme-color); /* Highlight active/hovered item with theme color */
}

/* --- List Styles for Chat & Contacts --- */
.list-item {
    display: flex;
    align-items: flex-start; 
    padding: 12px 16px;
    background-color: white;
    transition: background-color 0.2s;
    width: 100%;
}

.list-item:hover {
    background-color: #fafafa;
}

.avatar-container {
    position: relative;
    margin-right: 12px;
    flex-shrink: 0; /* 防止头像被压缩 */
}

.avatar {
    width: 48px; 
    height: 48px;
    border-radius: 10px; 
    object-fit: cover;
    background-color: #e5e7eb; /* Adds a light grey placeholder background */
}

.unread-dot {
    position: absolute;
    top: 0;
    right: 0;
    width: 10px;
    height: 10px;
    background-color: #ef4444; /* Red dot for unread */
    border-radius: 50%;
    border: 2px solid white;
}

/* -- Glow Animation for Notifications -- */
@keyframes glow {
    0%, 100% {
        text-shadow: 0 0 5px var(--theme-color), 0 0 10px var(--theme-color);
    }
    50% {
        text-shadow: 0 0 10px var(--theme-color), 0 0 20px var(--theme-color);
    }
}

.has-unread-glow span, .has-unread-glow svg {
    color: var(--theme-color) !important;
    animation: glow 1.5s ease-in-out infinite;
}

/* For Index Page Icons */
.app-icon-link.has-unread-glow .icon-container {
    box-shadow: 0 0 15px 3px var(--theme-color);
    animation: glow 1.5s ease-in-out infinite;
}

/* 1. 完全屏蔽根视口橡皮筋（iOS 15+ Safari 已支持） */
html,
body {
  overscroll-behavior-y: none;   /* 不允许把滚动链到视口 */
}

/* 2. 让 header 真正固定，而不是 sticky */
.app-header {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 20;
}

/* 3. 只允许 main 自己滚动，且不把滚动冒泡上去 */
main.flex-grow {
  overflow-y: auto;              /* 内容超出才滚动 */
  overscroll-behavior-y: contain;/* 到边界后停止，不再传递 */
  -webkit-overflow-scrolling: touch;
}

/* 4. 给内容预留 header 高度*/
.main-content {
  padding-top: calc(56px + env(safe-area-inset-top));
  padding-bottom: calc(80px + env(safe-area-inset-bottom));
}

/* 5. 首页（或不需要滚动的页面）彻底禁掉 main 的滚动 */
.index-no-scroll main,
main.no-scroll {
  overflow-y: hidden;
}

/* --- Generic Modal Styles --- */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 50;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

.modal.visible {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: white;
    border-radius: 0.75rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 24rem; /* 默认最大宽度 */
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform 0.2s ease-in-out;
}

.modal.visible .modal-content {
    transform: scale(1);
}

.modal-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
}

.modal-input:focus {
    border-color: var(--theme-color) !important;
    box-shadow: 0 0 0 1px var(--theme-color) !important;
    outline: none;
}

.modal-btn {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: opacity 0.2s;
}

.modal-btn:hover {
    opacity: 0.85;
}

.modal-btn-confirm {
    color: white;
    background-color: var(--theme-color);
}

.modal-btn-cancel {
    background-color: #e5e7eb;
}

.message-content-column {
    /* 1 1 auto: 允许增长，允许收缩，基础宽度自动 */
    flex: 1 1 auto;
    /* 允许flex项收缩至小于其内容尺寸，从而触发内容换行 */
    min-width: 0;
}

/* --- Toast Notification Styles --- */
.toast-notification {
    position: fixed;
    /* 优先使用安全区域顶部边距，并额外增加10px间距，以适配iPhone刘海屏等设备 */
    top: calc(env(safe-area-inset-top, 0px) + 10px);
    left: 50%;
    /* 初始位置在屏幕上方偏外，配合动画滑入 */
    transform: translate(-50%, -20px);
    padding: 10px 20px;
    border-radius: 9999px; /* 胶囊形状 */
    color: white;
    font-size: 0.875rem; /* 14px */
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 90%;
}

.toast-notification.toast-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* 常规/成功提示的样式 (灰色) */
.toast-notification.toast-info,
.toast-notification.toast-success {
    background-color: rgba(55, 65, 81, 0.8); /* bg-gray-700 with opacity */
}

/* 错误/紧急提示的样式 (红色) */
.toast-notification.toast-error {
    background-color: rgba(220, 38, 38, 0.85); /* bg-red-600 with opacity */
}