/* base.css — reset, typography, html/body, utility primitives. */

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font);
  font-size: var(--fs-base);
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden; /* the app shell owns its own scrolling */
}

/* RTL — Arabic */
html[dir="rtl"] body { font-family: var(--font); }

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
}
h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p { margin: 0; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--t);
}
a:hover { color: var(--accent-hover); }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

input, select, textarea {
  font: inherit;
  color: inherit;
}

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

ul, ol { margin: 0; padding: 0; list-style: none; }

/* Brand names — keep latin/LTR even inside RTL */
.brand-name { unicode-bidi: plaintext; }

/* Scrollbars (Webkit) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-3); background-clip: padding-box; border: 2px solid transparent; }

/* Utility primitives — used sparingly, prefer components.css */
.sr-only {
  position: absolute;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

.hidden { display: none !important; }

.text-muted   { color: var(--text-2); }
.text-faint   { color: var(--text-3); }
.text-success { color: var(--success-dark); }
.text-danger  { color: var(--danger-dark); }
.text-warning { color: var(--warning); }

.no-wrap { white-space: nowrap; }
.line-clamp-1 {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Focus ring — accessible and consistent */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
button:focus-visible, a:focus-visible,
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline-offset: 1px;
}

/* Disable text-selection on UI chrome */
.nav-link, .btn, .tab, .chip, .fab, .sidebar-logo { user-select: none; }