/* ════════════════════════════════════════════════════════════════
   02-base.css — Reset + body + typography + scrollbar
   ════════════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: 'Tajawal', 'Cairo', system-ui, -apple-system, sans-serif;
  background: var(--gray-50);
  color: var(--text);
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.3s var(--ease-out), color 0.3s var(--ease-out);
}

/* Background mesh */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 85% 0%, rgba(43, 108, 176, 0.06), transparent 60%),
    radial-gradient(ellipse 50% 40% at 15% 100%, rgba(232, 104, 28, 0.04), transparent 55%);
}

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); background-clip: padding-box; }

/* Tabular numerals for numbers */
.num, .stat-card-value, .nav-item-badge, input[type="number"] {
  font-variant-numeric: tabular-nums;
  unicode-bidi: plaintext;
}

/* Logo */
.pb-logo {
  background-image: url('../assets/logo.svg');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  display: inline-block;
  flex-shrink: 0;
}
.pb-logo-sm { width: 44px; height: 44px; }
.pb-logo-md { width: 76px; height: 76px; }
.pb-logo-lg { width: 80px; height: 80px; }

/* Loader */
.loader-screen {
  position: fixed;
  inset: 0;
  background: linear-gradient(160deg, #0B1220 0%, #1D2942 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s;
}
.loader-screen.hide { opacity: 0; pointer-events: none; }
.loader-content { text-align: center; }
.loader-logo {
  width: 80px; height: 80px;
  margin: 0 auto 16px;
  animation: logoFloat 2.4s ease-in-out infinite;
  filter: drop-shadow(0 12px 30px rgba(74, 144, 217, 0.4));
}
@keyframes logoFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1.03); }
}
.loader-text {
  font-family: 'Cairo', sans-serif;
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #FFFFFF 0%, #8DB9E6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.loader-spinner {
  width: 32px; height: 32px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  border-right-color: var(--primary-light);
  border-radius: 50%;
  margin: 16px auto 0;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Empty state */
.empty {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-muted);
}
.empty svg { opacity: 0.5; margin-bottom: 12px; }
.empty h3 { font-size: 16px; color: var(--text); margin-bottom: 6px; }
.empty p { font-size: 13px; }

/* Focus visibility */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print */
@media print {
  .sidebar, .topbar, .toast-container, .sync-indicator { display: none !important; }
  .main, .content { padding: 0 !important; }
}