/* ═══════════════════════════════════════════════════════════
   PatrolWizzard V6 — Layout
   ═══════════════════════════════════════════════════════════ */

/* ── Login Screen ──────────────────────────────────────── */
.login-screen {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: var(--sp-4);
}
.login-card {
    background: var(--bg-card); border-radius: var(--radius-xl);
    padding: var(--sp-10); width: 100%; max-width: 400px;
    box-shadow: var(--shadow-xl);
}
.login-card .logo-area {
    text-align: center; margin-bottom: var(--sp-8);
}
.login-card .logo-area h1 {
    font-size: var(--text-xl); font-weight: 800;
    color: var(--text-primary); letter-spacing: -0.5px;
}
.login-card .logo-area h1 span { color: var(--pw-primary); }
.login-card .logo-area p {
    color: var(--text-muted); font-size: var(--text-sm); margin-top: var(--sp-1);
}
.login-card .login-error {
    background: var(--color-danger-bg); color: var(--color-danger);
    padding: var(--sp-3) var(--sp-4); border-radius: var(--radius-md);
    font-size: var(--text-sm); margin-bottom: var(--sp-4); display: none;
}
.login-card .login-error.show { display: block; }

/* ── App Shell ─────────────────────────────────────────── */
.app-shell { display: none; min-height: 100vh; }
.app-shell.active { display: flex; }

/* ── Sidebar ───────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width); height: 100vh; position: fixed;
    top: 0; left: 0; z-index: var(--z-sidebar);
    background: var(--bg-sidebar); display: flex; flex-direction: column;
    transition: width var(--transition-base), transform var(--transition-base);
    overflow: hidden;
}
.sidebar-brand {
    height: var(--header-height); display: flex; align-items: center;
    padding: 0 var(--sp-5); border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}
.sidebar-brand h2 {
    font-size: var(--text-lg); font-weight: 800; color: #fff;
    letter-spacing: -0.5px; white-space: nowrap;
}
.sidebar-brand h2 span { color: var(--pw-primary-light); }
.sidebar-brand .version {
    font-size: var(--text-xs); color: var(--text-muted);
    background: rgba(255,255,255,0.06); padding: 1px 6px;
    border-radius: var(--radius-sm); margin-left: var(--sp-2);
}

.sidebar-nav {
    flex: 1; overflow-y: auto; overflow-x: hidden;
    padding: var(--sp-3) 0;
}
.sidebar-nav::-webkit-scrollbar { width: 3px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

.nav-section {
    margin-bottom: var(--sp-2);
}
.nav-section-label {
    font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px;
    color: rgba(255,255,255,0.25); padding: var(--sp-3) var(--sp-5) var(--sp-1);
    font-weight: 600; white-space: nowrap;
}
.nav-item {
    display: flex; align-items: center; gap: var(--sp-3);
    padding: var(--sp-2) var(--sp-5); margin: 1px var(--sp-2);
    border-radius: var(--radius-md); cursor: pointer;
    color: var(--text-sidebar); font-size: var(--text-sm);
    transition: all var(--transition-fast); white-space: nowrap;
    text-decoration: none; user-select: none;
}
.nav-item:hover {
    background: var(--bg-sidebar-hover); color: #fff;
}
.nav-item.active {
    background: var(--bg-sidebar-active); color: var(--text-sidebar-active);
    font-weight: 500;
}
.nav-item .nav-icon {
    width: 20px; height: 20px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    opacity: 0.6;
}
.nav-item:hover .nav-icon, .nav-item.active .nav-icon { opacity: 1; }
.nav-item .nav-label { flex: 1; }
.nav-item .nav-badge {
    font-size: 10px; background: var(--pw-primary);
    color: #fff; padding: 1px 6px; border-radius: var(--radius-full);
    font-weight: 600; min-width: 18px; text-align: center;
}

.nav-item-group > .nav-children {
    max-height: 0; overflow: hidden;
    transition: max-height var(--transition-base);
}
.nav-item-group.open > .nav-children { max-height: 500px; }
.nav-children .nav-item {
    padding-left: 52px; font-size: var(--text-xs);
}
.nav-item .nav-arrow {
    transition: transform var(--transition-fast);
    opacity: 0.4;
}
.nav-item-group.open > .nav-item .nav-arrow { transform: rotate(90deg); }

.sidebar-footer {
    padding: var(--sp-3) var(--sp-4);
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
}
.sidebar-user {
    display: flex; align-items: center; gap: var(--sp-3);
    padding: var(--sp-2); border-radius: var(--radius-md);
    cursor: pointer; transition: background var(--transition-fast);
}
.sidebar-user:hover { background: var(--bg-sidebar-hover); }
.sidebar-user .user-avatar {
    width: 34px; height: 34px; border-radius: var(--radius-full);
    background: var(--pw-primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: var(--text-sm); font-weight: 600; flex-shrink: 0;
}
.sidebar-user .user-info { overflow: hidden; }
.sidebar-user .user-name {
    font-size: var(--text-sm); color: #fff; font-weight: 500;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sidebar-user .user-role {
    font-size: var(--text-xs); color: var(--text-muted);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ── Header ────────────────────────────────────────────── */
.main-area {
    margin-left: var(--sidebar-width); flex: 1;
    min-height: 100vh; display: flex; flex-direction: column;
    transition: margin-left var(--transition-base);
}
.header {
    height: var(--header-height); background: var(--bg-header);
    border-bottom: 1px solid var(--border-light);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 var(--sp-6); position: sticky; top: 0;
    z-index: var(--z-header); flex-shrink: 0;
}
.header-left { display: flex; align-items: center; gap: var(--sp-4); }
.header-toggle {
    display: none; width: 36px; height: 36px;
    border: none; background: transparent; border-radius: var(--radius-md);
    cursor: pointer; color: var(--text-secondary);
    align-items: center; justify-content: center;
}
.header-toggle:hover { background: var(--bg-body); }
.header-title h1 {
    font-size: var(--text-lg); font-weight: 700; color: var(--text-primary);
    letter-spacing: -0.3px;
}
.header-title .breadcrumbs {
    font-size: var(--text-xs); color: var(--text-muted);
    display: flex; align-items: center; gap: var(--sp-1);
}
.header-title .breadcrumbs span { color: var(--text-secondary); }

.header-right { display: flex; align-items: center; gap: var(--sp-2); }
.header-btn {
    width: 36px; height: 36px; border: none; background: transparent;
    border-radius: var(--radius-md); cursor: pointer;
    color: var(--text-secondary); display: flex; align-items: center;
    justify-content: center; position: relative;
    transition: all var(--transition-fast);
}
.header-btn:hover { background: var(--bg-body); color: var(--text-primary); }
.header-btn .badge-dot {
    position: absolute; top: 6px; right: 6px; width: 8px; height: 8px;
    background: var(--color-danger); border-radius: 50%;
    border: 2px solid var(--bg-header);
}

/* ── Content ───────────────────────────────────────────── */
.content {
    flex: 1; padding: var(--sp-6);
    animation: pw-fade-in 200ms ease;
}
.content-section { display: none; }
.content-section.active { display: block; animation: pw-slide-up 250ms ease; }

.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: var(--sp-6); flex-wrap: wrap; gap: var(--sp-3);
}
.page-header h2 {
    font-size: var(--text-xl); font-weight: 700; color: var(--text-primary);
}
.page-header .actions { display: flex; gap: var(--sp-2); }

/* ── Footer ────────────────────────────────────────────── */
.footer {
    padding: var(--sp-4) var(--sp-6);
    border-top: 1px solid var(--border-light);
    color: var(--text-muted); font-size: var(--text-xs);
    display: flex; justify-content: space-between; align-items: center;
    flex-shrink: 0;
}

/* ── Mobile Overlay ────────────────────────────────────── */
.sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: var(--bg-overlay); z-index: calc(var(--z-sidebar) - 1);
}
.sidebar-overlay.active { display: block; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-area { margin-left: 0; }
    .header-toggle { display: flex; }
}
@media (max-width: 640px) {
    .content { padding: var(--sp-4); }
    .page-header { flex-direction: column; align-items: flex-start; }
}