/**
 * ==============================================================================
 * Link in bio 輕量級核心樣式表 (Mobile-First Multi-Theming Stylesheet) - 顯著光影旗艦版
 * ==============================================================================
 * 設計原則：
 * 1. 忠實保留卡片原色：
 *    - Hover 懸停時「完全不覆蓋/不改變」原本卡片與按鈕的背景色彩與文字字體色。
 * 2. 顯著立體懸浮 (Pronounced Elevation & Ambient Glow)：
 *    - 明亮主題：深邃有感的柔和擴散立體陰影 (Soft Deep Elevation)。
 *    - 黑暗主題：顯著華麗的環境微發光光暈 (Vibrant Ambient Glow)，品牌卡片自適應專屬光暈。
 * 3. 模組化主題系統：支援每頁獨立自訂背景、大頭貼形狀、按鈕卡片質感與圓角。
 * 4. QR Code 掃碼彈窗：全白襯底高對比設計，保證相機瞬間秒掃。
 * ==============================================================================
 */

/* --------------------------------------------------------------------------
   1. 全域基礎變數預設值 (Default Tokens)
   -------------------------------------------------------------------------- */
:root {
  --bg-color: #f8fafc;
  --bg-gradient: none;
  --bg-image: none;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --card-radius: 14px;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent-color: #2563eb;
  --accent-rgb: 37, 99, 235;
  --accent-hover: #1d4ed8;
  --badge-bg: #e0e7ff;
  --badge-text: #3730a3;
  
  /* 基礎懸浮立體陰影 */
  --shadow-idle: 0 3px 12px -2px rgba(0, 0, 0, 0.08), 0 1px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 18px 36px -4px rgba(0, 0, 0, 0.18), 0 8px 16px -2px rgba(0, 0, 0, 0.08);
  
  /* 
   * 亮色明亮主題：先是深邃純黑投影切邊 (Near-Black Core Depth) + 往外煙燻主題色彩 (Smoky Accent Halo)
   */
  --card-glow-idle: 0 2px 8px -1px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.04);
  --card-glow-hover: 
    0 2px 6px rgba(0, 0, 0, 0.25),
    0 10px 24px -2px rgba(0, 0, 0, 0.2),
    0 0 22px rgba(var(--accent-rgb), 0.45),
    0 0 50px rgba(var(--accent-rgb), 0.25),
    0 0 85px rgba(var(--accent-rgb), 0.1);
  
  --social-btn-bg: #ffffff;
  --social-btn-color: #334155;
  --social-btn-border: #e2e8f0;
  
  --modal-bg: #ffffff;
  --modal-text: #0f172a;
  --modal-muted: #64748b;
  --modal-border: #e2e8f0;
  --modal-overlay: rgba(15, 23, 42, 0.65);
  
  /* 品牌色彩定義（僅作用於卡片背景與文字，陰影統一遵循主題色） */
  --brand-github-bg: #181717;
  --brand-github-text: #ffffff;
  --brand-twitter-bg: #000000;
  --brand-twitter-text: #ffffff;
  --brand-youtube-bg: #cc0000;
  --brand-youtube-text: #ffffff;
  --brand-line-bg: #00b900;
  --brand-line-text: #ffffff;
  --brand-threads-bg: #000000;
  --brand-threads-text: #ffffff;
  --brand-coffee-bg: #ffdd00;
  --brand-coffee-text: #000000;
}

/* 
 * 深色模式變數覆寫：
 * 光暈從卡片邊緣「幾乎純白高亮核心 (Pure White Core)」再往外層層透出「濃郁主題色霓虹光暈 (Vibrant Accent Bloom)」
 */
@media (prefers-color-scheme: dark) {
  :root {
    --card-glow-idle: 0 4px 18px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.12);
    --card-glow-hover: 
      0 0 0 1px rgba(255, 255, 255, 0.95),
      0 0 14px rgba(255, 255, 255, 0.85),
      0 0 32px rgba(var(--accent-rgb), 0.92),
      0 0 68px rgba(var(--accent-rgb), 0.6),
      0 0 100px rgba(var(--accent-rgb), 0.3),
      0 18px 42px rgba(0, 0, 0, 0.85);
  }
  
  :root:not([data-theme="light"]):not([data-custom-theme="true"]) {
    --bg-color: #0b0f19;
    --card-bg: #1e293b;
    --card-border: #334155;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --badge-bg: #312e81;
    --badge-text: #c7d2fe;
    
    --shadow-idle: 0 4px 16px rgba(0, 0, 0, 0.45);
    --shadow-hover: 0 0 32px rgba(var(--accent-rgb), 0.7), 0 16px 36px rgba(0, 0, 0, 0.7);
    
    --social-btn-bg: #1e293b;
    --social-btn-color: #f1f5f9;
    --social-btn-border: #334155;
    
    --modal-bg: #1e293b;
    --modal-text: #f8fafc;
    --modal-muted: #94a3b8;
    --modal-border: #334155;
    --modal-overlay: rgba(0, 0, 0, 0.85);
  }
}

/* --------------------------------------------------------------------------
   2. 全域基礎重設與背景氛圍光 (Base Reset & Ambient Backdrop Aura)
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background-color: var(--bg-color);
  background-image: var(--bg-gradient, var(--bg-image, none));
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 2.5rem 1rem 3.5rem 1rem;
  transition: background 0.3s ease, color 0.3s ease;
  position: relative;
  overflow-x: hidden;
}

.bg-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background: var(--bg-overlay, transparent);
}

/* --------------------------------------------------------------------------
   3. 主要容器結構 (Container & Layout)
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.top-nav {
  width: 100%;
  display: flex;
  justify-content: flex-start;
  margin-bottom: 1.25rem;
}

.nav-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-idle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.nav-back-link:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255, 255, 255, 0.4);
}

.nav-back-link:active {
  transform: scale(0.96);
}

/* --------------------------------------------------------------------------
   4. 個人檔案區塊與大頭貼形狀系統 (Profile & Avatar Shapes)
   -------------------------------------------------------------------------- */
.profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 1.75rem;
  width: 100%;
}

.avatar-wrapper {
  position: relative;
  width: 96px;
  height: 96px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background-color: var(--card-bg);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.3s ease;
}

.avatar:hover {
  transform: translateY(-3px) scale(1.04);
}

/* 形狀系統 */
.avatar-shape-circle .avatar, .avatar-shape-circle.avatar-wrapper { border-radius: 50%; }
.avatar-shape-rounded .avatar, .avatar-shape-rounded.avatar-wrapper { border-radius: 20px; }
.avatar-shape-squircle .avatar, .avatar-shape-squircle.avatar-wrapper { border-radius: 30%; }
.avatar-shape-hexagon .avatar, .avatar-shape-hexagon.avatar-wrapper { clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); }

/* 光圈系統 1：簡約邊框 (Simple) */
.avatar-border-simple .avatar {
  border: 3px solid var(--card-border);
  box-shadow: var(--shadow-idle);
}

/* 光圈系統 2：經典主題呼吸光圈 (Classic Breathing Glow Pulse) */
.avatar-border-glow.avatar-wrapper,
.avatar-border-glow .avatar-wrapper {
  position: relative;
  cursor: pointer;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.avatar-border-glow.avatar-wrapper:hover,
.avatar-border-glow .avatar-wrapper:hover {
  transform: scale(1.08);
}

/* 正中心對稱呼吸光環 (Centered Breathing Glow Halo) */
.avatar-border-glow.avatar-wrapper::before,
.avatar-border-glow .avatar-wrapper::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    rgba(var(--accent-rgb), 0.85) 0%,
    rgba(var(--accent-rgb), 0.35) 45%,
    transparent 72%
  );
  filter: blur(18px);
  z-index: 0;
  pointer-events: none;
  animation: avatar-halo-pulse 3.5s infinite alternate ease-in-out;
}

@keyframes avatar-halo-pulse {
  0% {
    transform: translate(-50%, -50%) scale(0.85);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 1;
  }
}

.avatar-border-glow .avatar {
  position: relative;
  z-index: 1;
  box-shadow: 0 0 16px rgba(var(--accent-rgb), 0.85), 0 0 35px rgba(var(--accent-rgb), 0.45);
  border: 2.5px solid rgba(255, 255, 255, 0.95);
}

.profile-name {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.profile-handle {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

.profile-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background-color: var(--badge-bg);
  color: var(--badge-text);
  margin-bottom: 0.75rem;
}

.profile-bio {
  font-size: 0.92rem;
  color: var(--text-muted);
  max-width: 92%;
  line-height: 1.6;
  margin-bottom: 0.75rem;
  white-space: pre-line;
}

/* --------------------------------------------------------------------------
   5. 常用社群小圖示列 (Social Icons Row) - 顯著立體陰影與發光
   -------------------------------------------------------------------------- */
.socials-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
  align-items: center;
  margin-bottom: 1.75rem;
  width: 100%;
}

.social-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--social-btn-bg, var(--card-bg));
  color: var(--social-btn-color, var(--text-main));
  border: 1px solid var(--social-btn-border, var(--card-border));
  box-shadow: var(--shadow-idle);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease, border-color 0.25s ease;
  text-decoration: none;
  cursor: pointer;
  position: relative;
}

.social-icon-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: transform 0.25s ease;
}

.social-icon-btn svg[stroke="currentColor"] {
  fill: none;
}

/* 懸浮時：文字/圖示不變色，浮起 + 顯著主題色發光/陰影 */
.social-icon-btn:hover {
  transform: translateY(-3px) scale(1.08);
  box-shadow: var(--card-glow-hover);
  border-color: rgba(var(--accent-rgb), 0.95);
}

.social-icon-btn:active {
  transform: scale(0.94);
}

/* QR Code 專屬按鈕微點綴 */
.social-icon-btn.btn-qrcode {
  color: var(--accent-color);
  border-color: var(--social-btn-border, var(--card-border));
}

/* --------------------------------------------------------------------------
   6. 總覽 Portal 成員導覽卡片 (Portal Directory)
   -------------------------------------------------------------------------- */
.profiles-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  margin-bottom: 2.5rem;
}

.profile-entry-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 16px;
  text-decoration: none;
  background-color: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-idle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease, border-color 0.25s ease;
}

.profile-entry-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-glow-hover);
  border-color: rgba(var(--accent-rgb), 0.7);
}

.profile-entry-card:active {
  transform: scale(0.985);
}

.profile-entry-avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--card-border);
}

.profile-entry-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  text-align: left;
}

.profile-entry-name {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}

.profile-entry-role {
  font-size: 0.8rem;
  color: var(--accent-color);
  font-weight: 600;
  margin-top: 0.1rem;
}

.profile-entry-bio {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.profile-entry-arrow {
  color: var(--text-muted);
  opacity: 0.6;
  flex-shrink: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.profile-entry-card:hover .profile-entry-arrow {
  opacity: 0.95;
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   7. 按鈕卡片多樣化風格系統 (Card Variants & Radii)
   -------------------------------------------------------------------------- */
.links-list {
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  width: 100%;
  margin-bottom: 2.5rem;
}

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 58px;
  padding: 0.9rem 1.25rem;
  border-radius: var(--card-radius);
  text-decoration: none;
  background-color: var(--card-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-glow-idle);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
}

/* 核心原則：Hover 時絕對不覆蓋原本背景色與文字色，只靠浮起與主題色強烈光影/光暈 */
.link-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-glow-hover) !important;
  border-color: rgba(var(--accent-rgb), 0.75) !important;
}

.link-card:active {
  transform: scale(0.985);
}

/* 圓角切換 */
.card-radius-none .link-card, .card-radius-none.link-card { border-radius: 0px !important; }
.card-radius-md .link-card, .card-radius-md.link-card { border-radius: 14px; }
.card-radius-pill .link-card, .card-radius-pill.link-card { border-radius: 9999px !important; padding-left: 1.4rem; padding-right: 1.4rem; }

/* --- 卡片風格 1：極致通透毛玻璃 (Glassmorphism - 1.5px 水晶高光切邊與強效折射) --- */
.card-variant-glass .link-card, .link-card.card-variant-glass {
  background: var(--card-bg, linear-gradient(135deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0.07) 100%)) !important;
  backdrop-filter: blur(14px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(14px) saturate(190%) !important;
  border: 1.5px solid var(--card-border, rgba(255, 255, 255, 0.45)) !important;
  box-shadow: 
    inset 0 1.5px 1.5px 0 rgba(255, 255, 255, 0.75),
    inset 0 -1px 1px 0 rgba(0, 0, 0, 0.1),
    0 10px 28px 0 rgba(0, 0, 0, 0.08) !important;
  color: var(--text-main);
}
.card-variant-glass .link-card:hover,
body.card-variant-glass .link-card:hover {
  background: var(--card-bg, linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.12) 100%)) !important;
  border-color: #ffffff !important;
  box-shadow: 
    inset 0 1.5px 2px 0 rgba(255, 255, 255, 0.95),
    0 0 0 1.5px #ffffff,
    0 0 16px rgba(255, 255, 255, 0.9),
    0 0 36px rgba(var(--accent-rgb), 0.95),
    0 0 72px rgba(var(--accent-rgb), 0.65),
    0 18px 45px rgba(0, 0, 0, 0.35) !important;
}

/* --- 卡片風格 2：極客霓虹微發光 (Glow - 常態呼吸微光與純白白熾光芯) --- */
.card-variant-glow .link-card, .link-card.card-variant-glow {
  background-color: var(--card-bg) !important;
  border: 1px solid var(--card-border) !important;
  box-shadow: 
    0 0 8px rgba(var(--accent-rgb), 0.35),
    0 0 18px rgba(var(--accent-rgb), 0.15),
    0 4px 18px rgba(0, 0, 0, 0.5) !important;
  animation: card-idle-breathe 4s infinite alternate ease-in-out !important;
  color: var(--text-main);
}

@keyframes card-idle-breathe {
  0% {
    box-shadow: 0 0 6px rgba(var(--accent-rgb), 0.3), 0 0 14px rgba(var(--accent-rgb), 0.12), inset 0 0 6px rgba(var(--accent-rgb), 0.08), 0 4px 16px rgba(0, 0, 0, 0.5);
    border-color: rgba(var(--accent-rgb), 0.35);
  }
  50% {
    box-shadow: 0 0 15px rgba(var(--accent-rgb), 0.85), 0 0 32px rgba(var(--accent-rgb), 0.45), 0 0 55px rgba(var(--accent-rgb), 0.2), inset 0 0 10px rgba(var(--accent-rgb), 0.22), 0 6px 22px rgba(0, 0, 0, 0.65);
    border-color: rgba(var(--accent-rgb), 0.95);
  }
  100% {
    box-shadow: 0 0 6px rgba(var(--accent-rgb), 0.3), 0 0 14px rgba(var(--accent-rgb), 0.12), inset 0 0 6px rgba(var(--accent-rgb), 0.08), 0 4px 16px rgba(0, 0, 0, 0.5);
    border-color: rgba(var(--accent-rgb), 0.35);
  }
}

.card-variant-glow .link-card:hover,
body.card-variant-glow .link-card:hover {
  border-color: rgba(255, 255, 255, 0.95) !important;
  animation: none !important;
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.95),
    0 0 14px rgba(255, 255, 255, 0.85),
    0 0 32px rgba(var(--accent-rgb), 0.92),
    0 0 68px rgba(var(--accent-rgb), 0.6),
    0 0 100px rgba(var(--accent-rgb), 0.3),
    0 18px 42px rgba(0, 0, 0, 0.85) !important;
}

/* --- 卡片風格 3：優雅框線風格 (Outline - 雙重極細精緻邊框與純淨紙感) --- */
.card-variant-outline .link-card, .link-card.card-variant-outline {
  background-color: var(--card-bg) !important;
  border: 2px solid var(--card-border) !important;
  box-shadow: 
    0 0 0 2px var(--bg-color),
    0 4px 14px -2px rgba(0, 0, 0, 0.08) !important;
  color: var(--text-main);
  backdrop-filter: none !important;
}
.card-variant-outline .link-card:hover,
body.card-variant-outline .link-card:hover {
  border-color: var(--accent-color) !important;
  box-shadow: 
    0 0 0 2px var(--bg-color),
    0 2px 6px rgba(0, 0, 0, 0.28),
    0 12px 28px -2px rgba(0, 0, 0, 0.22),
    0 0 22px rgba(var(--accent-rgb), 0.5),
    0 0 52px rgba(var(--accent-rgb), 0.28) !important;
}

/* --- 卡片風格 4：新粗獷主義 (Brutalism - 3px 粗黑邊與純黑實體硬影) --- */
.card-variant-brutalism .link-card, .link-card.card-variant-brutalism {
  background-color: var(--card-bg) !important;
  border: 3px solid #000000 !important;
  box-shadow: 5px 5px 0px #000000 !important;
  border-radius: 0px !important;
  font-weight: 700;
  backdrop-filter: none !important;
}
.card-variant-brutalism .link-card:hover,
body.card-variant-brutalism .link-card:hover {
  transform: translate(-3px, -3px) !important;
  box-shadow: 8px 8px 0px #000000 !important;
  border-color: #000000 !important;
}
.card-variant-brutalism .link-card:active,
body.card-variant-brutalism .link-card:active {
  transform: translate(2px, 2px) !important;
  box-shadow: 2px 2px 0px #000000 !important;
}

/* --- 卡片風格 5：純色經典 (Solid - 溫潤厚實底色與多層大範圍懸浮) --- */
.card-variant-solid .link-card, .link-card.card-variant-solid {
  background-color: var(--card-bg) !important;
  border: 1px solid var(--card-border) !important;
  box-shadow: 
    0 2px 8px -1px rgba(0, 0, 0, 0.06),
    0 10px 24px -4px rgba(0, 0, 0, 0.08) !important;
  color: var(--text-main);
}
.card-variant-solid .link-card:hover,
body.card-variant-solid .link-card:hover {
  border-color: rgba(var(--accent-rgb), 0.75) !important;
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.12),
    0 18px 36px -4px rgba(0, 0, 0, 0.18),
    0 0 24px rgba(var(--accent-rgb), 0.35) !important;
}

/* 社群圖示在深色與淺色風格頁面下的精確發光行為 */
body.card-variant-glow .social-icon-btn:hover,
body.card-variant-glass .social-icon-btn:hover {
  border-color: rgba(255, 255, 255, 0.95);
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.9),
    0 0 12px rgba(255, 255, 255, 0.8),
    0 0 28px rgba(var(--accent-rgb), 0.9),
    0 0 55px rgba(var(--accent-rgb), 0.5);
}

body.card-variant-outline .social-icon-btn:hover {
  border-color: var(--accent-color);
  box-shadow: 
    0 2px 6px rgba(0, 0, 0, 0.22),
    0 8px 18px -2px rgba(0, 0, 0, 0.16),
    0 0 18px rgba(var(--accent-rgb), 0.45),
    0 0 36px rgba(var(--accent-rgb), 0.2);
}

/* 特別推薦卡片：精緻呼吸邊框 (Pulse Border) - 不覆蓋原本卡片材質 */
.link-card.highlight {
  border-width: 1.5px !important;
  border-color: var(--accent-color) !important;
  animation: highlight-pulse-border 3.5s infinite ease-in-out;
}

@keyframes highlight-pulse-border {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.5), var(--card-glow-idle);
  }
  50% {
    box-shadow: 0 0 0 5px rgba(var(--accent-rgb), 0), 0 0 16px rgba(var(--accent-rgb), 0.35), var(--card-glow-idle);
  }
}

.link-left {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex: 1;
}

.link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: currentColor;
}

.link-icon svg { width: 100%; height: 100%; }

.link-content {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.link-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
}

.link-description {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.link-right {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  opacity: 0.6;
  transition: transform 0.25s ease, opacity 0.25s ease;
  margin-left: 0.5rem;
}

.link-card:hover .link-right {
  opacity: 0.95;
  transform: translateX(3px);
}

/* --------------------------------------------------------------------------
   8. 品牌色彩卡片 (Brand Card Styles) - 忠實保留原色 + 統一主題色光暈
   -------------------------------------------------------------------------- */
.link-card.brand-github {
  background-color: var(--brand-github-bg) !important;
  color: var(--brand-github-text) !important;
  border-color: rgba(255, 255, 255, 0.15) !important;
}
.link-card.brand-github .link-description,
.link-card.brand-github .link-right {
  color: rgba(255, 255, 255, 0.8) !important;
}

.link-card.brand-youtube {
  background-color: var(--brand-youtube-bg) !important;
  color: var(--brand-youtube-text) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
}
.link-card.brand-youtube .link-description,
.link-card.brand-youtube .link-right {
  color: rgba(255, 255, 255, 0.85) !important;
}

.link-card.brand-line {
  background-color: var(--brand-line-bg) !important;
  color: var(--brand-line-text) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
}
.link-card.brand-line .link-description,
.link-card.brand-line .link-right {
  color: rgba(255, 255, 255, 0.9) !important;
}

.link-card.brand-threads {
  background-color: var(--brand-threads-bg) !important;
  color: var(--brand-threads-text) !important;
  border-color: #333333 !important;
}
.link-card.brand-threads .link-description,
.link-card.brand-threads .link-right {
  color: rgba(255, 255, 255, 0.8) !important;
}

.link-card.brand-coffee {
  background-color: var(--brand-coffee-bg) !important;
  color: var(--brand-coffee-text) !important;
  border-color: rgba(0, 0, 0, 0.1) !important;
  font-weight: 600;
}
.link-card.brand-coffee .link-description,
.link-card.brand-coffee .link-right {
  color: rgba(0, 0, 0, 0.75) !important;
}

/* 毛玻璃主題下的品牌卡片半透明水晶磨砂質感 */
body.card-variant-glass .link-card.brand-github {
  background-color: rgba(24, 23, 23, 0.55) !important;
  backdrop-filter: blur(28px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(190%) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
}
body.card-variant-glass .link-card.brand-youtube {
  background-color: rgba(204, 0, 0, 0.45) !important;
  backdrop-filter: blur(28px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(190%) !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
}
body.card-variant-glass .link-card.brand-line {
  background-color: rgba(0, 185, 0, 0.45) !important;
  backdrop-filter: blur(28px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(190%) !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
}
body.card-variant-glass .link-card.brand-threads {
  background-color: rgba(18, 18, 18, 0.55) !important;
  backdrop-filter: blur(28px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(190%) !important;
  border-color: rgba(255, 255, 255, 0.2) !important;
}
body.card-variant-glass .link-card.brand-coffee {
  background-color: rgba(255, 221, 0, 0.65) !important;
  backdrop-filter: blur(28px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(28px) saturate(190%) !important;
  border-color: rgba(255, 255, 255, 0.3) !important;
}

/* 品牌卡片 Hover：不改變自身背景色與文字色，陰影與發光全面統一套用「當前主題色光暈」 */
.link-card.brand-github:hover,
.link-card.brand-youtube:hover,
.link-card.brand-line:hover,
.link-card.brand-threads:hover,
.link-card.brand-coffee:hover {
  box-shadow: var(--card-glow-hover) !important;
  border-color: rgba(var(--accent-rgb), 0.85) !important;
}

/* --------------------------------------------------------------------------
   9. QR Code 分享彈窗系統 (Modal & Bottom Sheet - 深度主題化)
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--modal-overlay);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 100%;
  max-width: 380px;
  background-color: var(--modal-bg);
  color: var(--text-main);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius, 24px);
  padding: 1.75rem 1.5rem;
  box-shadow: 0 0 45px rgba(var(--accent-rgb), 0.35), 0 25px 60px rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  transform: translateY(20px) scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

/* 彈窗頂部主題微發光飾條 */
.modal-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.modal-backdrop.is-open .modal-card {
  transform: translateY(0) scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background-color: rgba(128, 128, 128, 0.18);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.modal-close-btn:hover {
  background-color: rgba(128, 128, 128, 0.35);
  color: var(--text-main);
  transform: scale(1.08) rotate(90deg);
}

.modal-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.25rem;
}

.modal-avatar-wrapper {
  width: 56px;
  height: 56px;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background-color: var(--card-bg);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
}

.modal-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* QR Code 容器：純白底（保證 100% 秒掃）+ 主題流光發光外框 */
.qr-code-wrapper {
  background-color: #ffffff !important;
  padding: 0.75rem;
  border-radius: 18px;
  box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.35), 0 0 24px rgba(var(--accent-rgb), 0.25), 0 8px 24px rgba(0, 0, 0, 0.2);
  border: 2px solid rgba(var(--accent-rgb), 0.5);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 216px;
  height: 216px;
  position: relative;
  animation: qr-frame-pulse 3.5s infinite alternate ease-in-out;
}

@keyframes qr-frame-pulse {
  0% {
    box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.3), 0 0 16px rgba(var(--accent-rgb), 0.2), 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: rgba(var(--accent-rgb), 0.4);
  }
  100% {
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.7), 0 0 32px rgba(var(--accent-rgb), 0.45), 0 12px 28px rgba(0, 0, 0, 0.25);
    border-color: rgba(var(--accent-rgb), 0.9);
  }
}

.qr-code-wrapper svg {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* 網址展示與複製膠囊 */
.url-display-box {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(128, 128, 128, 0.15);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius, 12px);
  padding: 0.5rem 0.75rem;
  margin-bottom: 1rem;
  gap: 0.5rem;
}

.url-text {
  font-size: 0.8rem;
  color: var(--text-main);
  opacity: 0.85;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.copy-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  background-color: var(--accent-color);
  color: #ffffff;
  border: none;
  border-radius: var(--card-radius, 8px);
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 8px rgba(var(--accent-rgb), 0.35);
}

.copy-icon-btn:hover {
  background-color: var(--accent-hover);
  transform: scale(1.04);
  box-shadow: 0 0 16px rgba(var(--accent-rgb), 0.6);
}

.copy-icon-btn:active {
  transform: scale(0.96);
}

/* 分享操作按鈕群組 */
.modal-actions {
  width: 100%;
  display: flex;
  gap: 0.65rem;
}

.action-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--card-radius, 12px);
  border: 1px solid var(--card-border);
  background-color: rgba(128, 128, 128, 0.15);
  color: var(--text-main);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

.action-btn:hover {
  border-color: rgba(var(--accent-rgb), 0.6);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15), 0 0 12px rgba(var(--accent-rgb), 0.25);
}

.action-btn.primary {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(var(--accent-rgb), 0.4);
}

.action-btn.primary:hover {
  background-color: var(--accent-hover);
  color: #ffffff;
  box-shadow: 0 0 22px rgba(var(--accent-rgb), 0.7), 0 6px 18px rgba(var(--accent-rgb), 0.45);
}

/* 圓角類別對 Modal 內部元件的繼承支援 */
.card-radius-none .modal-card,
.card-radius-none .action-btn,
.card-radius-none .url-display-box,
.card-radius-none .copy-icon-btn,
.card-radius-none .qr-code-wrapper {
  border-radius: 0px !important;
}

.card-radius-pill .action-btn,
.card-radius-pill .url-display-box,
.card-radius-pill .copy-icon-btn {
  border-radius: 9999px !important;
}

/* --------------------------------------------------------------------------
   10. 頁尾版權與標記 (Footer)
   -------------------------------------------------------------------------- */
.footer {
  margin-top: auto;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 100%;
}

.footer p { margin-bottom: 0.5rem; }

/* --------------------------------------------------------------------------
   11. 極小螢幕最佳化 (Small Screens < 380px)
   -------------------------------------------------------------------------- */
@media (max-width: 380px) {
  body { padding: 1.5rem 0.75rem 2rem 0.75rem; }
  .avatar-wrapper { width: 80px; height: 80px; }
  .profile-name { font-size: 1.2rem; }
  .link-card { padding: 0.75rem 1rem; }
  .modal-card { padding: 1.25rem 1rem; }
  .qr-code-wrapper { width: 180px; height: 180px; }
  .badge-card-container { width: 190px; height: 190px; }
  .badge-card { width: 180px; height: 180px; }
}

/* --------------------------------------------------------------------------
   12. 3D 互動金屬徽章彈窗系統 (3D Holographic Avatar Badge Modal)
   -------------------------------------------------------------------------- */
.badge-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--modal-overlay, rgba(0, 0, 0, 0.82));
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  perspective: 1200px;
  cursor: pointer;
}

.badge-modal-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* 3D 徽章容器：彈出放大與收回縮小物理動畫 (Spring Pop-in & Shrink Exit) */
.badge-card-container {
  perspective: 1000px;
  width: 250px;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.2) translateY(30px);
  opacity: 0;
  transition: transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.28s ease;
  cursor: default;
}

.badge-modal-backdrop.is-open .badge-card-container {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.badge-modal-backdrop.is-closing .badge-card-container {
  transform: scale(0.35) translateY(20px);
  opacity: 0;
  transition: transform 0.25s cubic-bezier(0.4, 0, 1, 1), opacity 0.2s ease;
}

.badge-card {
  width: 230px;
  height: 230px;
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
  cursor: grab;
  transition: box-shadow 0.3s ease;
}

.badge-card:active {
  cursor: grabbing;
}

.badge-surface {
  width: 100%;
  height: 100%;
  position: relative;
  border-radius: inherit;
  overflow: hidden;
  border: 3.5px solid rgba(255, 255, 255, 0.95);
  box-shadow: 
    0 0 0 1px rgba(var(--accent-rgb), 0.5),
    0 22px 55px rgba(0, 0, 0, 0.75),
    0 0 45px rgba(var(--accent-rgb), 0.45);
  background-color: var(--card-bg, #0f172a);
}

.badge-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

/* 表面光學鐳射反射層 (Holographic Sheen Refraction) */
.badge-hologram {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(var(--accent-rgb), 0.25) 35%,
    transparent 70%
  );
  mix-blend-mode: overlay;
  transition: background 0.05s ease-out;
}