/**
 * styles.css
 * Custom styles and Tailwind-compatible enhancements.
 * Tailwind CSS is loaded via CDN in index.html for GitHub Pages compatibility.
 */

/* Base font smoothing and typography */
html {
  scroll-behavior: smooth;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Toast slide & fade */
.toast {
  transition: opacity 0.3s ease, transform 0.3s ease;
  opacity: 1;
  transform: translateY(0) translateX(0);
}

.toast.hidden {
  opacity: 0;
  transform: translateY(-1rem) translateX(1rem);
  pointer-events: none;
}

/* Spinner */
.spinner {
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  width: 1.25rem;
  height: 1.25rem;
  animation: spin 0.75s linear infinite;
}

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

/* Progress bar stripe animation */
.progress-bar-animated {
  background-image: linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.15) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0.15) 75%,
    transparent 75%,
    transparent
  );
  background-size: 1rem 1rem;
  animation: progress-stripes 1s linear infinite;
}

@keyframes progress-stripes {
  from { background-position: 1rem 0; }
  to { background-position: 0 0; }
}

/* File upload drop zone */
.drop-zone {
  position: relative;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.drop-zone:hover,
.drop-zone.drag-active {
  border-color: #2563eb;
  background-color: #eff6ff;
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Form focus states */
input:focus,
button:focus,
select:focus,
textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Subtle card hover lift */
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 4px 10px -2px rgba(0, 0, 0, 0.05);
}

/* Ensure disabled button cursor */
button:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}