/* ─── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-primary-dk);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.sidebar-brand .brand-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: .02em;
}

.sidebar-brand .brand-tagline {
  font-size: 0.72rem;
  color: rgba(255,255,255,.55);
  margin-top: 2px;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.sidebar-nav {
  padding: 1rem 0;
  flex: 1;
}

.nav-section-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: rgba(255,255,255,.35);
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 0.75rem 1.25rem 0.25rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 1.25rem;
  color: rgba(255,255,255,.8);
  font-size: 0.9rem;
  transition: background .15s, color .15s;
  border-left: 3px solid transparent;
}

.nav-link:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
  text-decoration: none;
}

.nav-link.active {
  background: rgba(255,255,255,.12);
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

.nav-link .nav-icon {
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  font-style: normal;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255,255,255,.12);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,.7);
  margin-bottom: 0.6rem;
}

.sidebar-user .user-avatar {
  width: 28px; height: 28px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary-dk);
  flex-shrink: 0;
  text-transform: uppercase;
}

.btn-logout {
  width: 100%;
  background: rgba(255,255,255,.08);
  border: none;
  color: rgba(255,255,255,.7);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
  cursor: pointer;
  text-align: left;
  transition: background .15s;
}
.btn-logout:hover { background: rgba(220,38,38,.35); color: #fff; }

/* ─── Main Content ───────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 50;
}

.page-header h1 {
  font-size: 1.25rem;
  font-weight: 700;
}

.page-body {
  padding: 1.75rem 2rem;
}

/* ─── Hamburger button (hidden on desktop) ───────────────────── */
.sidebar-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-accent);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  line-height: 1;
}
.sidebar-hamburger:hover { background: rgba(255,255,255,.12); }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebar-brand {
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }
  .sidebar-hamburger { display: flex; }
  .sidebar-nav { display: none; width: 100%; }
  .sidebar-footer { display: none; width: 100%; }
  .sidebar.is-open .sidebar-nav { display: block; }
  .sidebar.is-open .sidebar-footer { display: block; padding: 0.75rem 1.25rem; }
  .main-content { margin-left: 0; }
  .page-header { padding: 0.875rem 1rem; }
  .page-header h1 { font-size: 1.1rem; }
  .page-body { padding: 1rem; }
}

/* ─── Login layout ───────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-dk) 0%, var(--color-primary-lt) 100%);
}

.login-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
}

.login-brand {
  text-align: center;
  margin-bottom: 2rem;
}

.login-brand .brand-name {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: .03em;
}

.login-brand .brand-tagline {
  font-size: 0.8rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}