/*
 * Minimal utilities - replaces Bootstrap (228KB → 1KB)
 * Only includes classes actually used in this project
 */

/* Flexbox utilities */
.d-flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.justify-content-center {
  justify-content: center;
}

/* Spacing utilities */
.h-100 {
  height: 100%;
}

.w-100 {
  width: 100%;
}

.p-3 {
  padding: 1rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mb-auto {
  margin-bottom: auto;
}

.mt-auto {
  margin-top: auto;
}

/* Text utilities */
.text-center {
  text-align: center;
}

/* Navigation */
.nav {
  display: flex;
  flex-wrap: wrap;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

/* Button base styles */
.btn {
  display: inline-block;
  font-weight: 400;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 0.25rem;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.btn-lg {
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  border-radius: 0.3rem;
}

/* Accessibility - screen reader only */
.visually-hidden,
.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Hidden attribute */
[hidden] {
  display: none !important;
}

/* Box sizing reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Body reset */
body {
  margin: 0;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

/* Image reset */
img {
  vertical-align: middle;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: none;
  }
}