/* Critical CSS for immediate rendering - Above the fold content */

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

:root {
  --primary: #0c2340;
  --primary-light: #1a3a5f;
  --secondary: #c6a343;
  --light: #ffffff;
  --dark: #051224;
  --text: #2c3e50;
  --text-light: #546e7a;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--primary);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  opacity: 1;
  font-display: swap;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 14px;
  overflow-x: hidden;
}

/* Mobile-first responsive text */
@media (min-width: 768px) {
  body {
    font-size: 16px;
    line-height: 1.6;
  }
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: 100%;
  margin: 0 auto;
}

/* Desktop alignment optimization */
@media (min-width: 1024px) {
  .page-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
  }

  /* Ensure all content is centered */
  .container {
    max-width: 1000px;
    margin: 60px auto;
    padding: 50px 60px;
  }

  /* Center registration form specifically */
  .registration-section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
  }
}

header {
  padding: 25px 0;
  background-color: rgba(12, 35, 64, 0.92);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(198, 163, 67, 0.2);
  position: relative;
  z-index: 10;
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 20px;
}

.logo {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--light);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  text-align: center;
}

.logo span {
  color: #e9c46a;
}

.conference-subtitle {
  font-size: 1.1rem;
  color: var(--light);
  opacity: 0.9;
  margin-bottom: 8px;
  text-align: center;
}

.guest-speaker {
  font-size: 1rem;
  font-weight: 500;
  color: #e9c46a;
  letter-spacing: 0.8px;
  text-align: center;
  padding: 3px 12px;
  border-radius: 20px;
  background: rgba(12, 35, 64, 0.3);
  border: 1px solid rgba(198, 163, 67, 0.2);
  display: inline-block;
}

.hero-section {
  height: 50vh;
  min-height: 400px;
  width: 100%;
  background: linear-gradient(to bottom, rgba(12, 35, 64, 0.2), rgba(12, 35, 64, 0.6)), url('../images/background.jpg');
  background-size: cover;
  background-position: center 15%;
  position: relative;
  margin-bottom: 40px;
  margin-top: 20px;
}

.container {
  max-width: 900px;
  margin: 60px auto;
  background: rgba(255, 255, 255, 0.92);
  padding: 50px;
  border-radius: 16px;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(20px);
  width: 100%;
  box-sizing: border-box;
}

/* CRITICAL: Button must be immediately visible - Override all animations */
.btn-container {
  text-align: center !important;
  margin-top: 40px !important;
  opacity: 1 !important;
  display: block !important;
  visibility: visible !important;
  animation: none !important;
  animation-delay: 0s !important;
  transform: none !important;
}

button, #submitButton {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%) !important;
  color: var(--light) !important;
  border: none !important;
  padding: 18px 40px !important;
  border-radius: 50px !important;
  font-size: 1.1rem !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  display: inline-block !important;
  visibility: visible !important;
  opacity: 1 !important;
  min-width: 250px !important;
  min-height: 48px !important;
  pointer-events: auto !important;
  touch-action: manipulation !important;
  position: relative !important;
  z-index: 100 !important;
  animation: none !important;
  animation-delay: 0s !important;
  transform: none !important;
  width: auto !important;
  height: auto !important;
}

/* Override any desktop animations that hide elements */
@media (min-width: 769px) {
  .btn-container {
    opacity: 1 !important;
    animation: none !important;
    animation-delay: 0s !important;
  }

  button, #submitButton {
    opacity: 1 !important;
    display: inline-block !important;
    visibility: visible !important;
  }
}

/* Mobile optimizations - immediate visibility */
@media (max-width: 768px) {
  * {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    animation-delay: 0s !important;
    animation-duration: 0s !important;
  }

  body { 
    opacity: 1 !important; 
  }
  
  .hero-section { 
    height: 30vh; 
    min-height: 250px; 
  }
  
  .container { 
    margin: 30px 20px; 
    padding: 30px 20px; 
  }
  
  .logo { 
    font-size: 1.8rem; 
  }
  
  .conference-subtitle { 
    font-size: 1rem; 
  }
  
  .guest-speaker { 
    font-size: 0.9rem; 
  }

  .btn-container {
    opacity: 1 !important;
    display: block !important;
    visibility: visible !important;
  }

  button {
    width: 100%;
    min-width: unset;
    padding: 16px 30px;
    font-size: 1rem;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
}