/* ═══════════════════════════════════════════════════
   LAYOUT — Sidebar + Header + Main Content
   ═══════════════════════════════════════════════════ */

/* ── App container ── */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* ══════════════════════════════
   SIDEBAR
══════════════════════════════ */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  z-index: 100;
  transition: transform var(--t);
}

/* Logo / Branding */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background: var(--accent-bg);
}

.logo-placeholder {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 800; color: #fff;
  flex-shrink: 0;
}

.logo-text { display: flex; flex-direction: column; }
.logo-name { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.logo-sub  { font-size: 0.65rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; }

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow-y: auto;
}

.nav-section-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  padding: 0.875rem 0.75rem 0.375rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.875rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--t-fast);
  cursor: pointer;
  text-decoration: none;
}

.nav-item svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  stroke: currentColor;
}

.nav-item:hover {
  background: var(--accent-bg);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent-light);
  font-weight: 600;
}

/* Sidebar footer */
.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 1.25rem;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.sidebar-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}

.sidebar-user-info { min-width: 0; }
.sidebar-user-name {
  font-size: 0.8rem; font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sidebar-user-role {
  font-size: 0.65rem; color: var(--text-muted); text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-logout {
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.8rem; font-weight: 500;
  cursor: pointer;
  transition: all var(--t-fast);
}

.btn-logout:hover {
  border-color: var(--danger);
  color: var(--danger);
  background: var(--danger-bg);
}

/* ══════════════════════════════
   MAIN CONTENT
══════════════════════════════ */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Page Header */
.page-header {
  height: var(--header-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
}

.page-header-left {
  display: flex; align-items: center; gap: 1rem;
}

.page-title {
  font-size: 1rem; font-weight: 700;
  color: var(--text-primary);
}

.breadcrumb {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { opacity: 0.4; }

.page-header-right {
  display: flex; align-items: center; gap: 0.75rem;
}

/* Page Body */
.page-body {
  flex: 1;
  padding: 2rem;
}

/* ── Simple header (sem sidebar) para usuário comum ── */
.user-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
}

.user-header-brand {
  display: flex; align-items: center; gap: 0.75rem;
}
.user-header-brand .logo-placeholder {
  width: 30px; height: 30px; font-size: 0.85rem;
}

.user-header-right {
  display: flex; align-items: center; gap: 1rem;
}

.user-greeting {
  font-size: 0.825rem; color: var(--text-muted);
}
.user-greeting strong { color: var(--text-primary); font-weight: 600; }

/* ── Stats grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

/* ── Section header ── */
.section-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-title {
  font-size: 1rem; font-weight: 700; color: var(--text-primary);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .main-content {
    margin-left: 0;
  }
  .page-body {
    padding: 1.25rem;
  }
  .page-header {
    padding: 0 1.25rem;
  }
  .user-header {
    padding: 0 1.25rem;
  }
}