/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: hidden;
}

/* ============================================
   CONTAINER
   ============================================ */

.container {
  background: #ffffff;
  border-radius: 20px;
  padding: 40px 30px;
  max-width: 400px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   TELEGRAM ICON
   ============================================ */

.telegram-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #2aabee 0%, #229ed9 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite;
}

.telegram-icon svg {
  width: 50px;
  height: 50px;
  fill: #ffffff;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(42, 171, 238, 0.7);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 0 0 15px rgba(42, 171, 238, 0);
  }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1 {
  color: #333333;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 15px;
  line-height: 1.3;
}

p {
  color: #666666;
  font-size: 16px;
  margin-bottom: 30px;
  line-height: 1.6;
}

/* ============================================
   LOADING SPINNER
   ============================================ */

.spinner {
  width: 50px;
  height: 50px;
  margin: 20px auto;
  border: 4px solid #f3f3f3;
  border-top: 4px solid #2aabee;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.btn {
  padding: 15px 30px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: linear-gradient(135deg, #2aabee 0%, #229ed9 100%);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(42, 171, 238, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 171, 238, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: #f0f0f0;
  color: #333333;
}

.btn-secondary:hover {
  background: #e0e0e0;
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
  display: none !important;
}

/* ============================================
   NOTE TEXT
   ============================================ */

.note {
  margin-top: 20px;
  font-size: 13px;
  color: #999999;
  line-height: 1.5;
}

.note a {
  color: #2aabee;
  text-decoration: none;
  font-weight: 500;
}

.note a:hover {
  text-decoration: underline;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 480px) {
  .container {
    padding: 30px 20px;
  }

  h1 {
    font-size: 20px;
  }

  p {
    font-size: 14px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }

  .telegram-icon {
    width: 70px;
    height: 70px;
  }

  .telegram-icon svg {
    width: 40px;
    height: 40px;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  body {
    background: #ffffff;
  }

  .container {
    box-shadow: none;
  }

  .spinner,
  .btn {
    display: none;
  }
}