/* ============================================================
   style.css - 心理健康 Wiki 主题样式（无 Emoji）
   ============================================================ */

/* ---------- 主题 CSS 变量 ---------- */
:root {
  /* 蓝色主题（默认） */
  --background: oklch(1 0 0);
  --foreground: oklch(0.16 0 0);
  --card: oklch(0.99 0 0);
  --card-foreground: oklch(0.16 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.16 0 0);
  --primary: oklch(0.45 0.12 260);
  --primary-foreground: oklch(1 0 0);
  --secondary: oklch(0.93 0 0);
  --secondary-foreground: oklch(0.20 0 0);
  --muted: oklch(0.97 0 0);
  --muted-foreground: oklch(0.50 0 0);
  --accent: oklch(0.93 0.04 260);
  --accent-foreground: oklch(0.20 0 0);
  --destructive: oklch(0.57 0.20 26);
  --destructive-foreground: oklch(1 0 0);
  --border: oklch(0.88 0.02 260);
  --input: oklch(0.90 0.02 260);
  --ring: oklch(0.45 0.12 260);
  --header-bg: color-mix(in oklch, oklch(1 0 0) 72%, transparent);
  --shadow-color: oklch(0.40 0.02 260 / 0.08);
}

/* 绿色主题 */
.theme-green {
  --primary: oklch(0.50 0.15 170);
  --ring: oklch(0.50 0.15 170);
  --secondary: oklch(0.92 0.02 170);
  --accent: oklch(0.92 0.04 170);
  --accent-foreground: oklch(0.20 0 0);
  --muted: oklch(0.96 0.02 170);
  --border: oklch(0.85 0.04 170);
  --input: oklch(0.88 0.04 170);
  --header-bg: color-mix(in oklch, oklch(0.98 0.02 170) 82%, transparent);
  --shadow-color: oklch(0.40 0.04 170 / 0.08);
}

/* 暗色主题 */
.theme-dark {
  --background: oklch(0.14 0 0);
  --foreground: oklch(0.85 0 0);
  --card: oklch(0.20 0 0);
  --card-foreground: oklch(0.85 0 0);
  --popover: oklch(0.20 0 0);
  --popover-foreground: oklch(0.85 0 0);
  --primary: oklch(0.60 0.15 260);
  --primary-foreground: oklch(1 0 0);
  --secondary: oklch(0.30 0 0);
  --secondary-foreground: oklch(0.90 0 0);
  --muted: oklch(0.25 0 0);
  --muted-foreground: oklch(0.65 0 0);
  --accent: oklch(0.28 0.05 260);
  --accent-foreground: oklch(0.90 0 0);
  --destructive: oklch(0.60 0.20 26);
  --destructive-foreground: oklch(1 0 0);
  --border: oklch(0.30 0 0);
  --input: oklch(0.30 0 0);
  --ring: oklch(0.60 0.15 260);
  --header-bg: color-mix(in oklch, oklch(0.14 0 0) 86%, transparent);
  --shadow-color: oklch(0 0 0 / 0.30);
}

/* ---------- 全局基础样式 ---------- */
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
:target {
  scroll-margin-top: 80px;
}
body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: 'Inter', 'system-ui', sans-serif;
  transition: background-color 0.3s, color 0.3s;
}

/* ---------- 毛玻璃顶部导航 ---------- */
.glass-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 64px;
  border-bottom: 1px solid var(--border);
  background-color: var(--header-bg);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  box-shadow: 0 4px 24px var(--shadow-color);
  transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

/* ---------- 通用卡片 ---------- */
.light-card {
  background-color: var(--card);
  box-shadow: 0 2px 8px var(--shadow-color);
  transition: background-color 0.3s, box-shadow 0.3s;
}
.light-muted {
  background-color: var(--muted);
  transition: background-color 0.3s;
}
.light-card.rounded-lg,
.light-muted.rounded-lg {
  border-radius: 12px;
}
.light-card .border-border {
  border-color: var(--border);
}

/* ---------- 侧边栏折叠样式 ---------- */
.sidebar-group {
  margin-bottom: 1.25rem;
}
.group-toggle {
  cursor: pointer;
  user-select: none;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: background-color 0.2s;
}
.group-toggle:hover {
  background-color: var(--accent);
}
.group-toggle .chevron-icon {
  transition: transform 0.25s ease;
}
.group-toggle .chevron-icon.collapsed {
  transform: rotate(-90deg);
}
.group-content {
  overflow: hidden;
  transition: max-height 0.3s ease, opacity 0.25s ease, margin 0.25s ease;
  max-height: 800px;
  opacity: 1;
  margin-top: 0.5rem;
}
.group-content.collapsed {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  pointer-events: none;
}

/* ---------- 目录链接 ---------- */
.nav-level-1 {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--foreground);
  margin-bottom: 0.5rem;
}
.nav-level-2 {
  font-size: 0.875rem;
  color: var(--muted-foreground);
  padding-left: 0.75rem;
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
  transition: color 0.2s;
  display: block;
}
.nav-level-2:hover {
  color: var(--primary);
}
.nav-level-2.active {
  color: var(--primary);
  font-weight: 500;
}

/* ---------- 正文排版 ---------- */
main p,
main li {
  color: var(--foreground);
  font-size: 1rem;
  line-height: 1.6;
}
.text-muted-foreground {
  color: var(--muted-foreground);
}
.text-primary {
  color: var(--primary);
}
.bg-primary\/10 {
  background-color: color-mix(in oklch, var(--primary) 10%, transparent);
}
.bg-destructive\/10 {
  background-color: color-mix(in oklch, var(--destructive) 10%, transparent);
}
.border-border {
  border-color: var(--border);
}

/* ---------- 工具类 ---------- */
.scrollbar-hide::-webkit-scrollbar {
  display: none;
}
.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* ---------- Cookie 弹窗 ---------- */
#cookie-notice {
  transition: opacity 0.3s;
}
#cookie-notice.show {
  opacity: 1;
  pointer-events: auto;
}
#cookie-notice.show > div {
  transform: scale(1);
}
#cookie-notice > div {
  transform: scale(0.95);
  transition: transform 0.3s;
}

/* ---------- Toast 通知 ---------- */
#theme-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 0.6rem 1.5rem;
  border-radius: 10px;
  background-color: var(--card);
  border: 1px solid var(--border);
  color: var(--foreground);
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 8px 24px var(--shadow-color);
  opacity: 0;
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
  white-space: nowrap;
}
#theme-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
#theme-toast .toast-icon {
  margin-right: 8px;
}
/* ---------- 侧边栏底部时钟数字等宽 ---------- */
#current-time {
    font-variant-numeric: tabular-nums; /* 让秒数跳动时数字宽度固定，防止布局抖动 */
    min-width: 70px;
    text-align: right;
}
#current-date {
    white-space: nowrap;
}
/* ---------- 侧边栏底部时钟数字等宽 ---------- */
#current-time {
    font-variant-numeric: tabular-nums;
    min-width: 68px;
    text-align: right;
}
#current-date {
    white-space: nowrap;
}

/* 底部区域轻微毛玻璃质感，与滚动内容区分 */
#file-sidebar .flex-shrink-0 {
    background-color: var(--card);
    box-shadow: 0 -2px 8px var(--shadow-color);
}

/* ---------- 回到顶部按钮 ---------- */
#back-to-top {
    position: fixed;
    right: 1.25rem;
    bottom: 1.5rem;
    z-index: 60;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 9999px;
    border: 1px solid var(--border);
    background-color: var(--card);
    color: var(--primary);
    font-size: 1rem;
    box-shadow: 0 8px 24px var(--shadow-color);
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s;
}
#back-to-top.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
#back-to-top:hover {
    background-color: var(--accent);
}

/* ---------- 心情记录选择样式 ---------- */
.mood-option.selected {
    border-color: var(--primary);
    background-color: color-mix(in oklch, var(--primary) 10%, transparent);
    box-shadow: 0 0 0 1px var(--primary);
}

/* ---------- AI 聊天界面 ---------- */
#chat-messages {
    min-height: 320px;
    max-height: 480px;
    overflow-y: auto;
}
.chat-msg {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.chat-msg .chat-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: 9999px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}
.chat-msg.user .chat-avatar {
    background-color: var(--primary);
    color: var(--primary-foreground);
}
.chat-msg.assistant .chat-avatar {
    background-color: var(--muted);
    color: var(--primary);
}
.chat-bubble {
    max-width: 85%;
    border-radius: 0.75rem;
    padding: 0.6rem 0.9rem;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}
.chat-msg.user .chat-bubble {
    background-color: var(--primary);
    color: var(--primary-foreground);
    border-top-right-radius: 0.2rem;
}
.chat-msg.assistant .chat-bubble {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-top-left-radius: 0.2rem;
}
.chat-msg.assistant .chat-bubble a {
    color: var(--primary);
    text-decoration: underline;
}