/* ============================================
   WEALTHWISE AI — Layout
   ============================================ */

/* ---- Sidebar ---- */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: hsla(228, 22%, 10%, 0.9);
    backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--space-xl) var(--space-lg);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 8px hsla(40, 90%, 55%, 0.4));
}

.logo-text {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    letter-spacing: -0.5px;
}

.logo-ai {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: var(--fw-extra);
}

/* ---- Nav Items ---- */
.nav {
    flex: 1;
    padding: var(--space-md) var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 12px var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--fs-base);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--gradient-primary);
    border-radius: 0 3px 3px 0;
    transition: height var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-primary);
    background: hsla(228, 22%, 18%, 0.5);
}

.nav-item.active {
    color: var(--text-primary);
    background: hsla(250, 85%, 65%, 0.1);
}

.nav-item.active::before {
    height: 24px;
}

.nav-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.nav-label {
    flex: 1;
}

/* ---- AI Status ---- */
.sidebar-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--glass-border);
}

.ai-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.ai-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-income);
    box-shadow: 0 0 8px var(--color-income);
    animation: pulse 2s ease-in-out infinite;
}

/* ---- Top Bar (mobile) ---- */
.topbar {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: hsla(228, 22%, 10%, 0.95);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    align-items: center;
    padding: 0 var(--space-lg);
    z-index: 99;
}

.topbar-logo {
    font-size: var(--fs-md);
    font-weight: var(--fw-bold);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.menu-toggle {
    width: 36px;
    height: 36px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ---- Main Content ---- */
.main-content {
    margin-left: var(--sidebar-width);
    padding: var(--space-xl) var(--space-2xl);
    min-height: 100vh;
}

/* ---- Page Header ---- */
.page-header {
    margin-bottom: var(--space-xl);
}

.page-title {
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    letter-spacing: -0.5px;
    margin-bottom: var(--space-xs);
}

.page-subtitle {
    font-size: var(--fs-base);
    color: var(--text-secondary);
}

/* ---- Grid Layouts ---- */
.grid-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .main-content {
        padding: var(--space-lg);
    }

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

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .topbar {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: calc(var(--topbar-height) + var(--space-lg)) var(--space-md) var(--space-lg);
    }

    .page-title {
        font-size: var(--fs-xl);
    }

    .grid-stats {
        grid-template-columns: 1fr 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .modal {
        max-width: 100%;
        margin: var(--space-md);
        border-radius: var(--radius-lg);
    }
}

@media (max-width: 480px) {
    .grid-stats {
        grid-template-columns: 1fr;
    }

    .main-content {
        padding: calc(var(--topbar-height) + var(--space-md)) var(--space-sm) var(--space-md);
    }
}