/* 主題色與變數 */
:root {
  --primary: #60a5fa;          /* 淺藍色 */
  --primary-hover: #3b82f6;    /* 深一點的藍色 */
  --secondary: #1d4ed8;        /* 深藍色 */
  --secondary-hover: #1e40af;  /* 更深的藍色 */
  --bg-dark: rgba(0, 0, 0, 0.45);     /* 深色背景 */
  --bg-darker: rgba(0, 0, 0, 0.85);   /* 更深的背景 */
  --text-primary: #ffffff;     /* 主要文字顏色 */
  --text-secondary: #e0e0e0;   /* 次要文字顏色 */
  --success: #4caf50;
  --error: #f44336;
  --warning: #ff9800;
  --radius: 20px;
  --container-bg: rgba(18, 18, 18, 0.45);
  --card-bg: rgba(30, 30, 30, 0.75);
  --border-color: rgba(255, 255, 255, 0.25);
  --glass-bg: rgba(0, 0, 0, 0.45);
  --glass-blur: 10px;
  --border-radius: 20px;
  --latency-excellent: #4caf50;  /* 綠色 0-100ms */
  --latency-good: #2196f3;      /* 藍色 100-200ms */
  --latency-normal: #ff9800;    /* 橘色 300-500ms */
  --latency-slow: #f44336;      /* 紅色 500-1000ms */
  --latency-very-slow: #9c27b0; /* 紫色 1000ms+ */
}

/* 背景圖 */
.background {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("https://www.loliapi.com/acg") no-repeat center center / cover;
  z-index: -1;
  filter: blur(4px) brightness(0.9);
}

/* 基本設定 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-align: center;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: "Microsoft JhengHei", Arial, sans-serif;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* 容器 */
.wrapper {
  flex: 1;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: clamp(0.8rem, 3vh, 1.5rem) clamp(0.5rem, 2vw, 1.5rem);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: 0.5rem;
}

/* 主容器 */
.container {
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  max-width: 800px;  /* 縮小最大寬度 */
  min-height: auto;  /* 移除固定高度 */
  margin: 1rem;
  padding: 1rem;
  gap: 0.8rem;
}

.container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
  100% { transform: translateY(0); }
}

/* 標題 */
h1 {
  margin-bottom: 1rem;
  font-size: 2.2rem;
  color: var(--primary);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  position: relative;
  display: inline-block;
  animation: float 4s ease-in-out infinite;
}

h1::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  border-radius: 2px;
}

.loading {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.6rem 1rem;
  background: var(--bg-darker);
  backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--border-radius);
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* 確保節點內容左右分布：標題左、延遲右 */
.result-content {
  display: flex;
  justify-content: space-between; /* 左右分布 */
  align-items: center;
  width: 100%;
  gap: 0.6rem;
  padding: 0 0.5rem;
}

/* 標題在左側 */
.result .label {
  text-align: left;
  flex: 1 1 auto;
  font-size: 1.05rem; /* 稍大標題 */
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 延遲在右側 */
.result .latency {
  text-align: right;
  flex: 0 0 auto;
  min-width: 90px;
  font-size: 1.05rem;
  font-weight: 700;
}

/* 延遲分級 - 顯示在節點容器 */
.result.excellent { /* <100ms 綠 */
  background: rgba(76, 175, 80, 0.08);
  border-color: var(--latency-excellent);
}
.result.good { /* <200ms 藍 */
  background: rgba(33, 150, 243, 0.08);
  border-color: var(--latency-good);
}
.result.normal { /* <500ms 黃 */
  background: rgba(255, 193, 7, 0.08);
  border-color: var(--latency-normal);
}
.result.slow { /* <1000ms 紅 */
  background: rgba(244, 67, 54, 0.08);
  border-color: var(--latency-slow);
}
.result.very-slow { /* >=1000ms 紫 */
  background: rgba(156, 39, 176, 0.08);
  border-color: var(--latency-very-slow);
}

/* 針對延遲文字也上色（提高辨識） */
.latency.excellent { color: var(--latency-excellent); }
.latency.good      { color: var(--latency-good); }
.latency.normal    { color: var(--latency-normal); }
.latency.slow      { color: var(--latency-slow); }
.latency.very-slow { color: var(--latency-very-slow); }

/* 結果區塊 */
.results {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin: 0;
  padding: 0;
}

.results .result {
  animation: fade-in 0.5s ease-out backwards;
}

.results .result:nth-child(1) { animation-delay: 0.1s; }
.results .result:nth-child(2) { animation-delay: 0.2s; }
.results .result:nth-child(3) { animation-delay: 0.3s; }
.results .result:nth-child(4) { animation-delay: 0.4s; }
.results .result:nth-child(5) { animation-delay: 0.5s; }

.result {
  display: flex;
  padding: 0.6rem;
  height: auto;     /* 自適應高度 */
  min-height: 50px; /* 最小高度 */
  border-radius: var(--radius);
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
}

.social-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
  margin: 0;
}

.social-button {
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  text-align: center;
  min-width: 0;    /* 移除最小寬度限制 */
  width: 100%;     /* 填滿容器 */
  backdrop-filter: blur(8px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.social-button.telegram {
  background: linear-gradient(135deg, #0088cc, #005f8e);
  color: white;
}

.social-button.discord {
  background: linear-gradient(135deg, #7289da, #4e5d94);
  color: white;
}

.social-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* 修改容器基本樣式 */
.container {
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--border-radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  max-width: 800px;  /* 縮小最大寬度 */
  min-height: auto;  /* 移除固定高度 */
  margin: 1rem;
  padding: 1rem;
  gap: 0.8rem;
}

/* 桌面版特定樣式 */
@media (min-width: 769px) {
  .wrapper {
    padding: 2rem;
    height: 100vh;
  }

  .container {
    max-width: 900px; /* 調整為更合適的寬度 */
    padding: 1.5rem;
    gap: 1rem;
  }

  h1 {
    font-size: 2.4rem; /* 稍大標題 */
    margin-bottom: 0.8rem;
  }

  .results {
    gap: 0.8rem;
  }

  .result {
    padding: 0.8rem 1rem;
    min-height: 56px;
  }

  .social-button {
    font-size: 1.18rem; /* 按鈕字級微調大一點 */
    padding: 0.75rem 1.25rem;
  }

  .social-section {
    margin-top: auto;
    padding-top: 2rem;
  }

  .social-links {
    gap: 2rem;
  }
}

/* 手機版樣式優化 */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .wrapper {
    padding: 0;
    min-height: 100vh;
  }

  .container {
    padding: 1.5rem 1rem;
    border-radius: 0;
    min-height: 100vh;
    border: none;
    display: flex;
    flex-direction: column;
  }

  h1 {
    font-size: 1.5rem;
    margin: 1rem 0 1.5rem;
  }

  .results {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin: 0 -1rem;
    padding: 0 1rem;
  }

  .result {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 0.5rem;
    text-align: center;
    margin: 0;
    border-radius: 15px;
    backdrop-filter: blur(10px);
  }

  .result .label {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
  }

  .result .site {
    color: var(--text-secondary);
    font-size: 0.85rem;
    word-break: break-all;
  }

  .result .latency {
    margin-top: 0.5rem;
    width: auto;
    display: inline-block;
    min-width: 100px;
    font-size: 1.1rem;
    font-weight: 600;
  }

  .social-links {
    flex-direction: column;
  }

  .social-button {
    max-width: 100%;
  }
}

/* 響應式設計 - 平板版本 */
@media (min-width: 481px) and (max-width: 768px) {
  .container {
    padding: 2rem 1.5rem;
    margin: 1rem;
  }

  .result {
    padding: 1rem;
  }

  .social-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }
}

/* 響應式設計 - 桌面版本 */
@media (min-width: 769px) {
  .container {
    padding: 2.5rem;
  }

  .result {
    padding: 1.2rem 2rem;
  }

  .result:hover {
    transform: translateY(-3px) scale(1.01);
  }
}