/* ============================================
   AUHMS - Reset & Base Styles
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-app);
  height: 100%;
  overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}

h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-md); }
h5 { font-size: var(--text-base); font-weight: var(--font-medium); }
h6 { font-size: var(--text-sm); font-weight: var(--font-medium); }

p {
  margin-bottom: var(--space-3);
  color: var(--text-secondary);
}

p:last-child { margin-bottom: 0; }

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

img, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
  user-select: none;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

table {
  border-collapse: collapse;
  width: 100%;
}

ul, ol {
  list-style: none;
}

::selection {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary-active);
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* Focus ring for accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Code / Mono elements */
code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

code {
  background: var(--gray-100);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  font-size: var(--text-sm);
}

pre {
  background: var(--gray-900);
  color: var(--gray-100);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: var(--text-sm);
}

/* Remove number input spinners */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* Placeholder styling */
::placeholder {
  color: var(--gray-400);
  opacity: 1;
}

/* Print cleanup */
@media print {
  .sidebar, .header, .no-print { display: none !important; }
  body { overflow: visible; background: white; }
}