/* Custom Styles for Cu Huy Dao Academic & Research Portfolio */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

body {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Glassmorphism effect */
.glass-nav {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Smooth transition for theme switching */
html {
  scroll-behavior: smooth;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Badge styling */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* Code / BibTeX card styling */
pre, code {
  font-family: var(--font-mono);
}

/* Toast notification */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: #0f172a;
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: 0.5rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notice.show {
  transform: translateY(0);
  opacity: 1;
}

.dark .toast-notice {
  background-color: #1e293b;
  border: 1px solid #334155;
  color: #f8fafc;
}

/* Responsive iframe container */
.iframe-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 ratio */
  height: 0;
  overflow: hidden;
  border-radius: 0.75rem;
}

.iframe-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}