/* ============================================
   InvestifySL Layout - Header, Sidebar, Nav
   ============================================ */

/* ---- Header / Navbar ---- */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    padding: var(--space-3) 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--primary);
}

.navbar-brand .logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
    font-weight: 800;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background: rgba(15, 76, 117, 0.08);
    color: var(--primary);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-left: var(--space-4);
    padding-left: var(--space-4);
    border-left: 1px solid var(--gray-200);
}

.nav-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: var(--primary);
}

.nav-user-info {
    display: flex;
    flex-direction: column;
}

.nav-user-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text);
}

.nav-user-role {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--primary);
    padding: var(--space-2);
}

/* ---- Mobile Sidebar ---- */
.mobile-sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 280px;
    height: 100vh;
    background: var(--white);
    z-index: var(--z-modal);
    transition: left var(--transition-base);
    box-shadow: var(--shadow-xl);
    padding: var(--space-6);
    overflow-y: auto;
}

.mobile-sidebar.open {
    left: 0;
}

.mobile-sidebar .sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-8);
}

.mobile-sidebar .sidebar-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--gray-500);
    cursor: pointer;
}

.mobile-sidebar .sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mobile-sidebar .sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition-fast);
}

.mobile-sidebar .sidebar-link:hover,
.mobile-sidebar .sidebar-link.active {
    background: rgba(15, 76, 117, 0.08);
    color: var(--primary);
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: var(--z-modal-backdrop);
    display: none;
}

.sidebar-overlay.active {
    display: block;
}

/* ---- Dashboard Layout ---- */
.dashboard-layout {
    display: flex;
    min-height: calc(100vh - 64px);
}

.dashboard-sidebar {
    width: 260px;
    background: var(--white);
    border-right: 1px solid var(--gray-100);
    padding: var(--space-6) var(--space-4);
    flex-shrink: 0;
}

.dashboard-sidebar .sidebar-section {
    margin-bottom: var(--space-6);
}

.dashboard-sidebar .sidebar-section-title {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-3);
    padding: 0 var(--space-3);
}

.sidebar-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition-fast);
    cursor: pointer;
    width: 100%;
    background: none;
    border: none;
    text-align: left;
}

.sidebar-menu-item:hover {
    background: rgba(15, 76, 117, 0.06);
    color: var(--primary);
}

.sidebar-menu-item.active {
    background: linear-gradient(135deg, rgba(15, 76, 117, 0.1), rgba(50, 130, 184, 0.08));
    color: var(--primary);
    font-weight: 600;
}

.sidebar-menu-item .menu-icon {
    font-size: var(--font-size-lg);
    width: 24px;
    text-align: center;
}

.dashboard-content {
    flex: 1;
    padding: var(--space-6) var(--space-8);
    overflow-y: auto;
    max-width: calc(100% - 260px);
}

.page-header {
    margin-bottom: var(--space-6);
}

.page-title {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--text);
}

.page-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

/* ---- Grid Layouts ---- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

/* ---- Footer ---- */
.footer {
    background: var(--primary-dark);
    color: var(--accent);
    padding: var(--space-8) 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-text {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-links a {
    color: var(--accent);
    font-size: var(--font-size-sm);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-content {
        padding: var(--space-4) var(--space-5);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .navbar-nav {
        display: none;
    }

    .nav-user {
        display: none;
    }

    .dashboard-sidebar {
        display: none;
    }

    .dashboard-content {
        max-width: 100%;
        padding: var(--space-4);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}