:root {
  --bg-color: #12091d;          
  --bg-indigo: #112b3c;         
  --bg-purple: #1b4c54;        
  --content-bg: #210e30;     
  --text-primary: #f2f7ff;      
  --text-secondary: #a4b8dc;     
  --accent: #72c8ff;            
  --accent-hover: #9bd9ff;       
  --accent-glow: rgba(114, 200, 255, 0.25);
  --border-color: rgba(138, 180, 248, 0.2);
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  background-image:
    radial-gradient(circle at 20% 20%, rgba(45, 65, 145, 0.22) 0%, transparent 45%),
    radial-gradient(circle at 80% 85%, rgba(92, 46, 145, 0.28) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-color) 0%, var(--bg-indigo) 70%, #19153a 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 40px 20px;
}

.header {
  text-align: center;
  margin-bottom: 32px;
}

.bot-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--text-primary);
  text-decoration: none;
  text-shadow: 0 0 14px var(--accent-glow);
}

.nav {
  margin-top: 8px;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  margin: 0 12px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s, text-shadow 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
}

.container {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  background-color: rgba(14, 21, 48, 0.88);
  backdrop-filter: blur(10px);
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 12px 36px rgba(3, 5, 15, 0.65), 0 0 24px rgba(114, 200, 255, 0.06);
  border: 1px solid var(--border-color);
}

body.home-page {
  justify-content: center;
  align-items: center;
}

.home-container {
  max-width: 580px;
  width: 100%;
  margin: auto;
  background-color: rgba(14, 21, 48, 0.88);
  backdrop-filter: blur(10px);
  padding: 48px 32px;
  border-radius: 18px;
  border: 1px solid var(--border-color);
  box-shadow: 0 12px 36px rgba(3, 5, 15, 0.65), 0 0 28px rgba(114, 200, 255, 0.08);
  text-align: center;
}

.logo {
  width: min(150px, 100%);
  margin-bottom: 16px;
  animation: move 0.8s infinite alternate-reverse ease-in-out;
}

.home-container h1 {
  border-bottom: none;
  padding-bottom: 0;
  font-size: 2rem;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-shadow: 0 0 18px var(--accent-glow);
}

.tagline {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.btn-invite {
  display: inline-block;
  background: linear-gradient(135deg, #8cfdff 0%, #5899ff 100%);
  color: #060b1e;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 34px;
  border-radius: 10px;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(114, 200, 255, 0.35);
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-invite:hover {
  background: linear-gradient(135deg, #9be0ff 0%, #73adff 100%);
  color: #060b1e;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(114, 200, 255, 0.5);
}

.features {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.feature-item {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.feature-item strong {
  color: var(--accent);
}

/* --- Typography --- */
h1 {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 10px;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 10px;
  text-shadow: 0 0 16px var(--accent-glow);
}

h2 {
  font-size: 1.4rem;
  margin-top: 30px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

p, li {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

ul {
  margin-left: 20px;
  margin-bottom: 20px;
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* --- Shared Footer --- */
.footer {
  text-align: center;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: #7488b0;
}

.home-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.home-footer a {
  color: var(--text-secondary);
  margin: 0 10px;
}

.home-footer a:hover {
  color: var(--accent);
}

@keyframes move {
  0% {
    transform: translateY(0px);
  }
  100% {
    transform: translateY(-6px);
  }
}