/* Root Variables */
:root {
  --primary-color: #4a6bff;
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --text-color: #333333;
  --text-secondary: #666666;
  --border-radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
}

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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  padding: 20px;
  min-height: 100vh;
  transition: var(--transition);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

header {
  text-align: center;
  padding: 40px 0 30px;
}

h1 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary-color);
  background: linear-gradient(135deg, #4a6bff, #6b5cff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 30px;
}

.tools-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  padding: 20px 0;
}

.tool-card {
  background-color: var(--card-bg);
  border-radius: 50%;
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 180px;
  height: 180px;
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.05);
  overflow: hidden;
  justify-content: center;
}

.tool-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.tool-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-bottom: 12px;
}

.tool-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-color);
}

/* Icon Background Gradients */
.chatgpt .tool-icon {
  background: linear-gradient(135deg, #10a37f, #0d8a6c);
}
.gemini .tool-icon {
  background: linear-gradient(135deg, #34a853, #2d9147);
}
.claude .tool-icon {
  background: linear-gradient(135deg, #ff5757, #e64b4b);
}
.qwen .tool-icon {
  background: linear-gradient(135deg, #ff6b35, #e05d2e);
}
.replika .tool-icon {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}
.readdy .tool-icon {
  background: linear-gradient(135deg, #007fff, #0066cc);
}
.perplexity .tool-icon {
  background: linear-gradient(135deg, #9e7f11, #22b99b);
}
.blackbox .tool-icon {
  background: linear-gradient(135deg, #222222, #000000);
}
.copyai .tool-icon {
  background: linear-gradient(135deg, #7300ff, #9f4dff);
}
.dalle .tool-icon {
  background: linear-gradient(135deg, #ff9966, #ff5e62);
}
.whisper .tool-icon {
  background: linear-gradient(135deg, #333399, #6666ff);
}
.groq .tool-icon {
  background: linear-gradient(135deg, #ff00cc, #333399);
}

footer {
  text-align: center;
  padding: 40px 0 30px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 60px;
}



/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #1e1e1e;
    --card-bg: #2c2c2c;
    --text-color: #f0f0f0;
    --text-secondary: #bbbbbb;
    --shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
  }

  .tool-card {
    border: 1px solid rgba(255, 255, 255, 0.05);
  }
}