/* ========================================
   《魔法使之夜》 — 全局设计系统
   (久远寺洋馆-有珠之夜 / 第五魔法-青子之蓝)
   ======================================== */

/* --- 字体在 HTML 中通过 Link 异步预加载引入 --- */

/* --- CSS 变量：双主题系统 --- */
:root,
[data-theme="aoko"] {
  /* 青子之蓝（现代亮色） */
  --bg-main: #f4f6f9;
  --bg-surface: rgba(255, 255, 255, 0.65); /* 提升至 65% 纯净透明度，保证无模糊状态下的文字绝对可读性 */
  --bg-surface-border: rgba(255, 255, 255, 0.35); /* 晶莹发光边框 */
  --text-primary: #0f1219;
  --text-secondary: #242936;
  --text-muted: #5a6275;
  --accent: #00bfff;
  --accent-glow: rgba(0, 191, 255, 0.25);
  --divider: rgba(255, 255, 255, 0.15);
  --shadow-color: rgba(0, 0, 0, 0.02); /* 极度轻薄的边缘投影 */
  --selection-bg: rgba(0, 191, 255, 0.25);
}

[data-theme="alice"] {
  /* 有珠之夜（默认暗色） */
  --bg-main: #090a0f;
  --bg-surface: rgba(20, 22, 33, 0.65); /* 提升至 65% 的深邃透明度 */
  --bg-surface-border: rgba(168, 85, 247, 0.3); /* 霓虹紫发光边框 */
  --text-primary: #d2d6dc;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent: #a855f7;
  --accent-glow: rgba(168, 85, 247, 0.3);
  --divider: rgba(255, 255, 255, 0.06);
  --shadow-color: rgba(0, 0, 0, 0.4);
  --selection-bg: rgba(168, 85, 247, 0.25);
}

/* --- 基础重置 --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

::selection {
  background: var(--selection-bg);
  color: var(--text-primary);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: "Noto Serif SC", "Tsukushi Mincho", "Yu Mincho", "游明朝",
    "Hiragino Mincho ProN", "HiraMinProN-W3", serif;
  line-height: 1.85;
  font-size: 1.05rem;
  min-height: 100vh;
  overflow-x: hidden;

  /* --- 极致全屏背景原画铺满配置 --- */
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

/* 🔮 有珠之夜：深邃星空与花海原画 (35% 极薄暗色遮罩，让璀璨星河完全绽放) */
[data-theme="alice"] body {
  background-image: 
    linear-gradient(rgba(9, 10, 15, 0.35), rgba(9, 10, 15, 0.35)),
    url('mahoyo-bg.jpg');
}

/* ⚡ 青子之蓝：夕阳微风下的苍崎青子 (18% 极致薄羽遮罩，让夕阳和青子完美呈现，毫无遮挡感) */
[data-theme="aoko"] body {
  background-image: 
    linear-gradient(rgba(244, 246, 249, 0.18), rgba(244, 246, 249, 0.18)),
    url('mahoyo-bg-light.jpg');
}



/* --- 装饰性背景光晕 --- */
body::before {
  content: "";
  position: fixed;
  top: -30%;
  left: -20%;
  width: 70vmax;
  height: 70vmax;
  background: radial-gradient(
    circle at 30% 40%,
    var(--accent-glow) 0%,
    transparent 70%
  );
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
  transition: background 0.8s ease;
}

body::after {
  content: "";
  position: fixed;
  bottom: -20%;
  right: -10%;
  width: 50vmax;
  height: 50vmax;
  background: radial-gradient(
    circle at 60% 50%,
    var(--accent-glow) 0%,
    transparent 60%
  );
  opacity: 0.1;
  pointer-events: none;
  z-index: 0;
  transition: background 0.8s ease;
}

/* --- 排版 --- */
h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 0.8em;
}

h2 {
  font-size: 1.6rem;
  margin-top: 2em;
  margin-bottom: 0.6em;
}

h3 {
  font-size: 1.25rem;
  margin-top: 1.5em;
  margin-bottom: 0.4em;
}

p {
  margin-bottom: 2em;
  letter-spacing: 0.02em;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

a:hover {
  border-bottom-color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
}

/* --- 毛玻璃容器 --- */
.glass {
  background: var(--bg-surface);
  border: 1px solid var(--bg-surface-border);
  border-radius: 16px; /* 更加圆润优雅的苹果 R16 圆角 */
  box-shadow: 
    0 10px 40px var(--shadow-color),
    inset 0 1px 0 rgba(255, 255, 255, 0.25); /* 顶部内边缘微弱高光反光线，营造真实玻璃厚度感 */
}

/* --- 极细分隔线 --- */
hr {
  border: none;
  height: 1px;
  background: var(--divider);
  margin: 3em 0;
}

/* --- 代码块 --- */
pre,
code {
  font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.9rem;
}

pre {
  background: var(--bg-surface);
  border: 1px solid var(--bg-surface-border);
  border-radius: 8px;
  padding: 1.2em 1.5em;
  overflow-x: auto;
  margin-bottom: 2em;
}

code {
  background: var(--bg-surface);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

pre code {
  background: none;
  padding: 0;
}

/* --- 列表 --- */
ul,
ol {
  margin-bottom: 2em;
  padding-left: 1.5em;
}

li {
  margin-bottom: 0.5em;
}

/* --- 引用块 --- */
blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1.2em;
  margin: 1.5em 0 2em;
  color: var(--text-secondary);
  font-style: italic;
}

/* --- 图片 --- */
img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5em 0;
}

/* --- 过渡动画工具类 --- */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-strong {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s ease, transform 1s ease;
}

.fade-in-strong.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 响应式 --- */
@media (max-width: 768px) {
  body {
    font-size: 0.95rem;
  }

  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.25rem;
  }
}

/* --- View Transitions API 结界过渡效果 --- */
@keyframes clip-in {
  from {
    clip-path: circle(0% at var(--click-x, 50%) var(--click-y, 50%));
  }
  to {
    clip-path: circle(150% at var(--click-x, 50%) var(--click-y, 50%));
  }
}

/* 当触发 View Transition 时，给新视图应用圆形扩散动画 */
::view-transition-new(root) {
  animation: 0.75s cubic-bezier(0.19, 1, 0.22, 1) both clip-in;
  mix-blend-mode: normal;
  z-index: 999;
}

::view-transition-old(root) {
  animation: none;
  mix-blend-mode: normal;
  z-index: 1;
}

/* --- 极美搜索面板 (Search Modal) --- */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 15vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.search-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.search-modal {
  width: 90%;
  max-width: 600px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  padding: 1.5em 2em;
  transform: translateY(-20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.search-overlay.active .search-modal {
  transform: translateY(0);
}

.search-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1em;
  border-bottom: 1px solid var(--divider);
  padding-bottom: 0.8em;
}

.search-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.search-close {
  background: none;
  border: 1px solid var(--bg-surface-border);
  border-radius: 6px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all 0.3s ease;
}

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

#search-input {
  width: 100%;
  padding: 0.8em 1.2em;
  border: 1px solid var(--bg-surface-border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: all 0.3s ease;
}

[data-theme="aoko"] #search-input {
  background: rgba(0, 0, 0, 0.02);
}

#search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.search-results {
  overflow-y: auto;
  margin-top: 1em;
  flex: 1;
  padding-right: 0.5em;
}

/* Pagefind 结果项样式 */
.pagefind-result {
  padding: 1.2em;
  border-radius: 8px;
  margin-bottom: 0.8em;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.02);
}

.pagefind-result:hover {
  border-color: var(--bg-surface-border);
  background: var(--bg-surface);
  transform: translateY(-1px);
}

.pagefind-result-title a {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  border: none;
}

.pagefind-result-title a:hover {
  color: var(--accent);
}

.pagefind-result-excerpt {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 0.4em;
}

.pagefind-result-excerpt mark {
  background: var(--selection-bg);
  color: var(--text-primary);
  font-weight: 600;
  padding: 0.1em 0.3em;
  border-radius: 2px;
}

/* --- 文字雾化出现演出动画 --- */
.reveal-char {
  display: inline-block;
  opacity: 0;
  filter: blur(10px);
  transform: scale(0.9);
  animation: char-fade-blur 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes char-fade-blur {
  to {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
}

/* --- 交互控制样式 --- */
.audio-toggle, .search-toggle {
  background: none;
  border: 1px solid var(--bg-surface-border);
  border-radius: 6px;
  padding: 0.35em 0.7em;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.audio-toggle:hover, .audio-toggle.active,
.search-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.8em;
}

/* --- 原著高定西文字型应用 --- */
.header-sub-text {
  font-family: 'Cinzel', serif;
  font-weight: 500;
  font-size: 0.75rem !important;
}

.post-date, time {
  font-family: 'Cormorant Garamond', 'Noto Serif SC', serif;
  font-size: 1.05rem !important;
  font-weight: 600;
  letter-spacing: 0.05em;
}

footer {
  font-family: 'Cormorant Garamond', 'Noto Serif SC', 'Tsukushi Mincho', '游明朝', serif;
}

footer p {
  letter-spacing: 0.08em;
}

/* --- 🎵 极美浮动八音盒播放器 (Apple Glassmorphism Widget) --- */
.music-player {
  position: fixed;
  bottom: 2em;
  left: 2em; /* 放在左下角，避开可能存在的右下角交互件 */
  z-index: 150;
  display: flex;
  align-items: center;
  padding: 0.6em;
  border-radius: 40px !important;
  max-width: 50px;
  overflow: hidden;
  transition: max-width 0.55s cubic-bezier(0.19, 1, 0.22, 1), padding 0.4s ease, box-shadow 0.3s ease;
  box-shadow: 0 8px 32px var(--shadow-color);
  cursor: pointer;
}

.music-player:hover,
.music-player.active {
  max-width: 240px; /* 悬浮展开展示完整音轨标签 */
  padding-right: 1.5em;
}

.music-btn {
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  padding: 0;
  margin: 0;
}

.music-disc-icon {
  display: inline-block;
  line-height: 1;
}

/* 💿 唱片旋转动画 */
@keyframes disc-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.music-player.playing .music-disc-icon {
  animation: disc-spin 8s linear infinite;
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent-glow);
}

.music-info {
  margin-left: 0.8em;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.35s ease 0.1s;
  pointer-events: none;
}

.music-player:hover .music-info,
.music-player.active .music-info {
  opacity: 1;
  pointer-events: auto;
}

.music-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.music-artist {
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.2;
  margin-top: 0.25em;
  font-family: 'Cormorant Garamond', serif;
  letter-spacing: 0.03em;
}