/* ==========================================================================
   BASE STYLES
   Modern, clean foundation for countdown application
   ========================================================================== */

/* CSS Custom Properties for consistency and theming */
:root {
  /* Typography */
  --font-primary: 'Poppins', sans-serif;
  --font-decorative: 'Great Vibes', cursive;
  
  /* Sizing */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 15px;
  --border-radius-xl: 20px;
  
  /* Spacing */
  --spacing-xs: 5px;
  --spacing-sm: 10px;
  --spacing-md: 15px;
  --spacing-lg: 20px;
  --spacing-xl: 25px;
  --spacing-2xl: 30px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 15px rgba(255, 192, 203, 0.3);
  --shadow-lg: 0 4px 15px rgba(255, 192, 203, 0.4);
  
  /* Z-index layers */
  --z-background: 0;
  --z-content: 2;
  --z-hearts: 500;
  --z-hearts-individual: 501;
  --z-modal: 999;
  --z-overlay: 1000;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  font-family: var(--font-primary);
  color: white;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background pattern */
body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('https://www.transparenttextures.com/patterns/hearts.png');
  opacity: 0.05;
  z-index: var(--z-background);
}

/* Main container */
.app-container {
  position: relative;
  z-index: var(--z-content);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  padding: var(--spacing-lg);
}

/* Typography */
.app-title {
  font-family: var(--font-decorative);
  font-size: 3.5em;
  margin-bottom: var(--spacing-lg);
  color: #fff5f5;
  text-shadow: 2px 2px 4px #ff6f91;
  animation: pulse 4s infinite;
}

.app-footer {
  margin-top: var(--spacing-2xl);
  font-size: 1.1em;
  color: #fff0f5;
}

/* Animations */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Responsive design */
@media (max-width: 768px) {
  .app-container {
    padding: var(--spacing-md);
    justify-content: flex-start;
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
  }
  
  .app-title {
    font-size: 2.5em;
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .app-container {
    padding: var(--spacing-sm);
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
  }
  
  .app-title {
    font-size: 2em;
    margin-bottom: var(--spacing-sm);
  }
}

@media (max-width: 320px) {
  .app-container {
    padding: var(--spacing-xs);
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
  }
  
  .app-title {
    font-size: 1.8em;
  }
}