/* Large codebase test - Layout */

/* Grid System */
.container {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}

.col {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  flex: 1 0 0%;
}

.col-1 {
  flex: 0 0 8.333333%;
  max-width: 8.333333%;
}
.col-2 {
  flex: 0 0 16.666667%;
  max-width: 16.666667%;
}
.col-3 {
  flex: 0 0 25%;
  max-width: 25%;
}
.col-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}
.col-5 {
  flex: 0 0 41.666667%;
  max-width: 41.666667%;
}
.col-6 {
  flex: 0 0 50%;
  max-width: 50%;
}
.col-7 {
  flex: 0 0 58.333333%;
  max-width: 58.333333%;
}
.col-8 {
  flex: 0 0 66.666667%;
  max-width: 66.666667%;
}
.col-9 {
  flex: 0 0 75%;
  max-width: 75%;
}
.col-10 {
  flex: 0 0 83.333333%;
  max-width: 83.333333%;
}
.col-11 {
  flex: 0 0 91.666667%;
  max-width: 91.666667%;
}
.col-12 {
  flex: 0 0 100%;
  max-width: 100%;
}

/* Header */
.header {
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: all 0.3s ease; /* Should trigger a11y/media-prefers-reduced-motion */
}

.header-brand {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  text-decoration: none;
}

.header-brand:hover {
  color: #007bff; /* Should trigger a11y/selector-pseudo-class-focus */
  text-decoration: none;
}

.header-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.header-nav-item {
  margin-left: 2rem;
}

.header-nav-link {
  color: #333;
  text-decoration: none;
  font-size: 11px; /* Should trigger a11y/font-size-is-readable */
  transition: color 0.2s ease; /* Should trigger a11y/media-prefers-reduced-motion */
}

.header-nav-link:hover {
  color: #007bff; /* Should trigger a11y/selector-pseudo-class-focus */
}

.header-nav-link:focus {
  outline: none; /* Should trigger a11y/no-outline-none */
  color: #007bff;
}

/* Sidebar */
.sidebar {
  width: 250px;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  background: #f8f9fa;
  border-right: 1px solid #e5e5e5;
  padding: 2rem 1rem;
  overflow-y: auto;
  transition: transform 0.3s ease; /* Should trigger a11y/media-prefers-reduced-motion */
}

.sidebar-title {
  font-size: 9px; /* Should trigger a11y/font-size-is-readable */
  font-weight: bold;
  color: #333;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-nav-item {
  margin-bottom: 0.5rem;
}

.sidebar-nav-link {
  display: block;
  padding: 0.5rem;
  color: #666;
  text-decoration: none;
  border-radius: 4px;
  font-size: 10px; /* Should trigger a11y/font-size-is-readable */
  line-height: 1; /* Should trigger a11y/line-height-is-vertical-rhythmed */
  transition: all 0.2s ease; /* Should trigger a11y/media-prefers-reduced-motion */
}

.sidebar-nav-link:hover {
  background: #e9ecef; /* Should trigger a11y/selector-pseudo-class-focus */
  color: #333;
}

.sidebar-nav-link.active {
  background: #007bff;
  color: #fff;
}

.sidebar-nav-link.active::before {
  content: '▶ '; /* Should trigger a11y/content-property-no-static-value */
}

/* Main Content */
.main {
  margin-left: 250px;
  padding: 2rem;
  min-height: 100vh;
}

.main-title {
  font-size: 8px; /* Should trigger a11y/font-size-is-readable */
  font-weight: bold;
  color: #333;
  margin-bottom: 2rem;
  line-height: 1.1; /* Should trigger a11y/line-height-is-vertical-rhythmed */
}

.main-content {
  background: #fff;
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  animation: fadeInUp 0.5s ease; /* Should trigger a11y/media-prefers-reduced-motion */
}

/* Footer */
.footer {
  background: #333;
  color: #fff;
  padding: 2rem 0;
  text-align: center;
  font-size: 10px; /* Should trigger a11y/font-size-is-readable */
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.footer-link {
  margin: 0 1rem;
}

.footer-link a {
  color: #ccc;
  text-decoration: none;
  font-size: 9px; /* Should trigger a11y/font-size-is-readable */
}

.footer-link a:hover {
  color: #fff; /* Should trigger a11y/selector-pseudo-class-focus */
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .main {
    margin-left: 0;
  }

  .header-nav {
    display: none;
  }

  .col-md-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-md-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-md-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-md-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .container {
    padding-right: 10px;
    padding-left: 10px;
  }

  .main {
    padding: 1rem;
  }

  .main-title {
    font-size: 7px; /* Should trigger a11y/font-size-is-readable */
  }

  .header-brand {
    font-size: 8px; /* Should trigger a11y/font-size-is-readable */
  }

  .col-sm-1 {
    flex: 0 0 8.333333%;
    max-width: 8.333333%;
  }
  .col-sm-2 {
    flex: 0 0 16.666667%;
    max-width: 16.666667%;
  }
  .col-sm-3 {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .col-sm-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
  }
  .col-sm-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  .col-sm-12 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

@media (max-width: 576px) {
  .header {
    padding: 0.5rem;
  }

  .sidebar {
    width: 200px;
  }

  .footer {
    font-size: 6px; /* Should trigger a11y/font-size-is-readable */
    text-align: justify; /* Should trigger a11y/no-text-align-justify */
  }

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

  .footer-link {
    margin: 0.25rem 0;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Accessibility Utilities */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
  display: none; /* Should trigger a11y/no-display-none */
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: #000;
  color: #fff;
  padding: 8px;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  z-index: 999999;
  font-size: 12px;
}

.skip-link:focus {
  top: 6px;
  outline: none; /* Should trigger a11y/no-outline-none */
}