/*! 
 * Mingine's Site - Global Styles
 * Theme: Glassmorphism, Dark/Light Mode
 */

:root {
  --bg-color: #f3f4f6;
  --text-color: #1f2937;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --accent-color: #3b82f6;
  --nav-height: 70px;
}

[data-theme="dark"] {
  --bg-color: #111827;
  --text-color: #f9fafb;
  --glass-bg: rgba(17, 24, 39, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --accent-color: #60a5fa;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
  min-height: 100vh;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--nav-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5%;
  z-index: 1000;
  border-radius: 0 0 12px 12px;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  color: var(--text-color);
}

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--accent-color);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-color);
}

/* 页面内容区 */
.container {
  max-width: 1200px;
  margin: calc(var(--nav-height) + 40px) auto 40px auto;
  padding: 0 20px;
}

/* 首页顶部背景图区域 */
.home-hero {
  position: relative;
  min-height: 62vh;
  padding: calc(var(--nav-height) + 35px) 0 40px;
  background-color: #0f172a;
  background-image: image-set(
    url('../images/bg.webp') type('image/webp'),
    url('../images/bg.png') type('image/png')
  );
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.35),
    rgba(15, 23, 42, 0.1) 60%,
    rgba(15, 23, 42, 0.45)
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  margin-top: 0;
}

/* 卡片 */
.profile-card {
  padding: 40px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.hero-profile-card {
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.3);
}

.profile-img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
  border: 4px solid var(--accent-color);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 20px 0;
}

.tag {
  padding: 5px 15px;
  background: var(--accent-color);
  color: white;
  border-radius: 20px;
  font-size: 0.9rem;
}

.tag-link {
  text-decoration: none;
  display: inline-block;
  color: #fff;
}

.tag-button {
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.tag-button:hover,
.tag-link:hover {
  filter: brightness(1.08);
}

.tag-button:focus-visible,
.tag-link:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.9);
  outline-offset: 2px;
}

/* 音乐悬浮播放器 */
.music-widget {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: min(360px, calc(100vw - 40px));
  z-index: 980;
  overflow: hidden;
  border-radius: 14px;
  transition: box-shadow 0.25s ease;
}

.music-widget:hover {
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.22);
}

.music-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: none;
  color: var(--text-color);
  background: transparent;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 14px;
  cursor: pointer;
}

.music-toggle span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.music-frame-wrap {
  max-height: 520px;
  opacity: 1;
  transition: max-height 0.35s ease, opacity 0.25s ease;
}

.music-source-switch {
  display: flex;
  gap: 8px;
  padding: 10px 12px 8px;
}

.music-source-btn {
  flex: 1;
  border: 1px solid var(--glass-border);
  background: transparent;
  color: var(--text-color);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.music-source-btn.active {
  background: var(--accent-color);
  color: #fff;
  border-color: transparent;
}

.music-source-panel {
  display: none;
}

.music-source-panel.active {
  display: block;
}

.music-frame-wrap iframe {
  display: block;
  border: 0;
}

.music-widget.collapsed .music-frame-wrap {
  max-height: 0;
  opacity: 0;
}

.music-widget.collapsed #music-toggle-icon::before {
  content: '\f065';
}

.music-widget.expanded #music-toggle-icon::before {
  content: '\f066';
}

/* AI 悬浮按钮与聊天窗 */
.ai-fab {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 999;
  transition: transform 0.2s;
}
.ai-fab:active { transform: scale(0.95); }

.chat-window {
  position: fixed;
  bottom: 90px;
  right: 20px;
  width: 350px;
  max-width: 90vw;
  height: 500px;
  max-height: 80vh;
  display: none;
  flex-direction: column;
  z-index: 1000;
  overflow: hidden;
}

.chat-header {
  padding: 15px;
  background: var(--accent-color);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.close-chat { cursor: pointer; font-size: 1.2rem; }

.chat-body {
  flex: 1;
  padding: 15px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-msg {
  max-width: 80%;
  padding: 10px 15px;
  border-radius: 12px;
}
.msg-bot {
  background: var(--glass-border);
  align-self: flex-start;
  border-bottom-left-radius: 0;
}
.msg-user {
  background: var(--accent-color);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 0;
}

.chat-input-area {
  display: flex;
  padding: 10px;
  border-top: 1px solid var(--glass-border);
}

.chat-input-area input {
  flex: 1;
  padding: 10px;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  background: transparent;
  color: var(--text-color);
  outline: none;
}
.chat-input-area button {
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  margin-left: 10px;
  cursor: pointer;
}

/* 2048 游戏 */
.game-container {
  width: 400px;
  max-width: 100%;
  margin: 0 auto;
  padding: 15px;
}
.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.score-box {
  background: var(--glass-border);
  padding: 10px 20px;
  border-radius: 6px;
  text-align: center;
}
.grid-container {
  background: #bbada0;
  border-radius: 8px;
  width: 100%;
  aspect-ratio: 1;
  position: relative;
  padding: 10px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: 10px;
}
.grid-cell {
  background: rgba(238, 228, 218, 0.35);
  border-radius: 4px;
}
.tile {
  position: absolute;
  width: calc(25% - 12.5px);
  height: calc(25% - 12.5px);
  background: #eee4da;
  border-radius: 4px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 2rem;
  font-weight: bold;
  color: #776e65;
  transition: all 0.1s ease-in-out;
}
/* 联系页面 */
.contact-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 30px;
}
.contact-links a {
  font-size: 2rem;
  color: var(--text-color);
  transition: transform 0.2s, color 0.2s;
}
.contact-links a:hover {
  transform: translateY(-5px);
  color: var(--accent-color);
}

/* 作品集页面 */
.portfolio-wrap {
  max-width: 980px;
  margin: calc(var(--nav-height) + 40px) auto 40px;
  padding: 0 20px;
}

.portfolio-card {
  padding: 24px;
}

.portfolio-title {
  margin-bottom: 8px;
  font-size: 1.8rem;
}

.portfolio-desc {
  opacity: 0.9;
  margin-bottom: 18px;
}

.portfolio-video {
  width: 100%;
  border-radius: 12px;
  background: #000;
  aspect-ratio: 16 / 9;
}

.portfolio-tip {
  margin-top: 12px;
  font-size: 0.92rem;
  opacity: 0.85;
}

@media (max-width: 768px) {
  .nav-links { gap: 10px; font-size: 0.9rem; }
  .profile-card { padding: 20px; }
  .home-hero {
    min-height: 56vh;
    padding: calc(var(--nav-height) + 20px) 0 25px;
  }
  .music-widget {
    left: 10px;
    bottom: 15px;
    width: calc(100vw - 20px);
  }
  .chat-window { bottom: 85px; right: 5%; width: 90%; }
}