/* هيكل التطبيق: الشريط الجانبي، الشريط العلوي، التنقل السفلي للجوال */
.app { display: flex; min-height: 100vh; }

/* ── الشريط الجانبي ── */
.sidebar {
  position: sticky; top: 0; height: 100vh; flex-shrink: 0;
  width: var(--sidebar-w); display: flex; flex-direction: column;
  background: var(--bg-canvas); border-inline-end: 1px solid var(--border-default);
  transition: width var(--duration-normal) var(--ease-spring);
  z-index: var(--z-drawer);
}
.sidebar-brand { display: flex; align-items: center; gap: 12px; padding: 18px 16px; border-bottom: 1px solid var(--border-subtle); min-height: 72px; }
.brand-mark {
  width: 42px; height: 42px; flex-shrink: 0; border-radius: var(--radius-lg);
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, #0891B2, #1D9BF0); box-shadow: var(--glow-accent);
}
.brand-mark .x-logo { width: 20px; height: 20px; }
.brand-text strong { display: block; font-size: var(--text-md); }
.brand-text small { display: block; color: var(--text-tertiary); font: 500 var(--text-2xs) var(--font-mono); direction: ltr; text-align: end; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 16px; }
.nav-group-title { display: flex; align-items: center; gap: 6px; padding: 2px 10px 6px; font-size: var(--text-2xs); font-weight: 700; color: var(--text-tertiary); }
.nav-group-title .mono { font-weight: 400; }
.nav-link {
  position: relative; display: flex; align-items: center; gap: 11px;
  min-height: 42px; padding: 0 12px; border-radius: var(--radius-lg);
  color: var(--text-secondary); font-size: var(--text-sm); font-weight: 600;
  border: 1px solid transparent;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.nav-link:hover { background: var(--bg-subtle); color: var(--text-primary); }
.nav-link .ic { color: var(--text-tertiary); transition: transform var(--duration-fast); }
.nav-link:hover .ic { transform: scale(1.1); color: var(--text-primary); }
.nav-link.active {
  color: var(--accent-text); font-weight: 700;
  background: linear-gradient(90deg, rgba(6, 182, 212, 0.18), rgba(20, 184, 166, 0.10), rgba(6, 182, 212, 0.05));
  border-color: var(--accent-border);
}
.nav-link.active .ic { color: var(--accent-text); }
.nav-link.active::before {
  content: ''; position: absolute; inset-inline-start: -1px; top: 8px; bottom: 8px; width: 4px;
  border-radius: 99px; background: linear-gradient(180deg, #22D3EE, #2DD4BF);
}
.nav-link .label { flex: 1; min-width: 0; }
.sidebar-foot { padding: 12px; border-top: 1px solid var(--border-subtle); }
.conn-card {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border-radius: var(--radius-xl); border: 1px solid var(--border-default); background: var(--bg-surface);
}
.conn-icon { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--ok-subtle); color: var(--ok-text); flex-shrink: 0; }
.conn-card.off .conn-icon { background: var(--err-subtle); color: var(--err-text); }
.conn-card strong { display: block; font-size: var(--text-xs); }
.conn-card small { display: block; color: var(--text-tertiary); font: var(--text-2xs) var(--font-mono); direction: ltr; text-align: end; }

/* الطي على سطح المكتب */
.app.collapsed .sidebar { width: var(--sidebar-w-collapsed); }
.app.collapsed .brand-text,
.app.collapsed .nav-group-title,
.app.collapsed .nav-link .label,
.app.collapsed .nav-link .count,
.app.collapsed .conn-card .grow { display: none; }
.app.collapsed .nav-link { justify-content: center; padding: 0; }
.app.collapsed .sidebar-brand { justify-content: center; padding-inline: 0; }
.app.collapsed .conn-card { justify-content: center; padding: 8px; }

/* ── المحتوى والشريط العلوي ── */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: var(--z-header);
  display: flex; align-items: center; gap: 10px; min-height: 72px; padding: 0 28px;
  background: color-mix(in srgb, var(--bg-canvas) 88%, transparent);
  backdrop-filter: blur(14px); border-bottom: 1px solid var(--border-default);
}
.crumbs { display: flex; align-items: center; gap: 6px; font-size: var(--text-sm); color: var(--text-secondary); min-width: 0; }
.crumbs .ic { color: var(--text-tertiary); }
.crumbs a { color: var(--text-secondary); }
.crumbs a:hover { color: var(--text-primary); }
.crumbs strong { color: var(--text-primary); }
.search-trigger {
  display: flex; align-items: center; gap: 10px; height: 40px; width: min(340px, 30vw);
  padding: 0 8px 0 14px; margin-inline-start: auto;
  border-radius: var(--radius-full); border: 1px solid var(--border-default); background: var(--bg-subtle);
  color: var(--text-tertiary); cursor: pointer; font-size: var(--text-sm);
}
.search-trigger:hover { border-color: var(--border-strong); color: var(--text-secondary); }
.search-trigger .kbd { margin-inline-start: auto; }
.live-pill {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px;
  border-radius: var(--radius-full); font-size: var(--text-sm); font-weight: 700;
  background: var(--ok-subtle); color: var(--ok-text); border: 1px solid var(--ok-border);
}
.live-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.live-pill.busy { background: var(--accent-subtle); color: var(--accent-text); border-color: var(--accent-border); }
.live-pill.busy .dot { animation: pulse-ring 1.6s infinite; }
.live-pill.off { background: var(--err-subtle); color: var(--err-text); border-color: var(--err-border); }
.topbar-sep { width: 1px; height: 28px; background: var(--border-default); }
.page { padding: 28px; width: 100%; max-width: 1480px; margin: 0 auto; }

/* رأس الصفحة */
.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.page-title { display: flex; align-items: center; gap: 12px; font-size: var(--text-xl); font-weight: 800; }
.page-title .ic { color: var(--accent-text); }
.page-sub { color: var(--text-secondary); font-size: var(--text-sm); margin-top: 4px; }

/* شريط الأدوات */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.toolbar .input-wrap { flex: 1 1 260px; }

/* ── التنقل السفلي للجوال ── */
.bottom-nav { display: none; }

@media (max-width: 900px) {
  .sidebar {
    position: fixed; inset-block: 0; inset-inline-start: 0; width: min(300px, 86vw);
    transform: translateX(110%); box-shadow: var(--shadow-xl);
    transition: transform var(--duration-normal) var(--ease-spring);
  }
  .app.nav-open .sidebar { transform: none; }
  .app.collapsed .sidebar { width: min(300px, 86vw); }
  .app.collapsed .brand-text, .app.collapsed .nav-group-title, .app.collapsed .nav-link .label, .app.collapsed .conn-card .grow { display: block; }
  .app.collapsed .nav-link { justify-content: flex-start; padding: 0 12px; }
  .nav-backdrop { position: fixed; inset: 0; background: var(--scrim); z-index: calc(var(--z-drawer) - 1); }
  .topbar { padding: 0 14px; min-height: 60px; }
  .search-trigger { width: 40px; padding: 0; justify-content: center; }
  .search-trigger .label, .search-trigger .kbd { display: none; }
  .page { padding: 16px 14px 96px; }
  .bottom-nav {
    display: grid; grid-template-columns: repeat(5, 1fr);
    position: fixed; inset-inline: 0; bottom: 0; z-index: var(--z-header);
    background: color-mix(in srgb, var(--bg-surface) 94%, transparent); backdrop-filter: blur(14px);
    border-top: 1px solid var(--border-default); padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
  }
  .bottom-nav a {
    display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 6px 0;
    border-radius: var(--radius-md); color: var(--text-tertiary); font-size: 10px; font-weight: 700;
  }
  .bottom-nav a.active { color: var(--accent-text); background: var(--accent-subtle); }
}
@media (min-width: 901px) {
  .only-mobile { display: none !important; }
}