:root {
    /* Brand Colors */
    --slds-brand-primary: #1B2A5B;
    --slds-brand-primary-light: #2855A0;
    --slds-brand-primary-dark: #142047;
    --slds-brand-accent: #FF8C00;
    --slds-brand-accent-light: #FFB100;
    
    /* Neutral Colors */
    --slds-text: #080707;
    --slds-text-secondary: #444444;
    --slds-background: #F3F6F9;
    --slds-surface: #FFFFFF;
    --slds-border: #D8DDE6;
}

/* Base Overrides */
.slds-button_brand {
    background-color: var(--slds-brand-primary) !important;
    border-color: var(--slds-brand-primary) !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.slds-button_brand:hover, 
.slds-button_brand:focus {
    background-color: var(--slds-brand-primary-dark) !important;
    border-color: var(--slds-brand-primary-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.slds-context-bar {
    background-color: var(--slds-brand-primary);
}

.slds-nav-vertical__item.slds-is-active::before {
    background-color: var(--slds-brand-accent);
}

.slds-card__header {
    border-bottom: 1px solid var(--slds-border);
    padding: 0.75rem 1rem;
}

.slds-page-header {
    background: var(--slds-surface);
    border-bottom: 1px solid var(--slds-border);
    padding: 1rem 1.5rem;
}

/* Utility Classes */
.u-flex-center { display: flex; align-items: center; justify-content: center; }
.u-text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.u-m-t-none { margin-top: 0 !important; }
.u-p-a-none { padding: 0 !important; }
.u-text-brand { color: var(--slds-brand-primary) !important; }
.u-bg-brand { background-color: var(--slds-brand-primary) !important; }
.u-text-accent { color: var(--slds-brand-accent) !important; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

:focus {
    outline: 2px solid var(--slds-brand-accent) !important;
    outline-offset: 2px;
}

.slds-text-body_small {
    color: var(--slds-text-secondary);
}

/* Sidebar Specific */
.slds-nav-vertical__action {
    transition: all 0.2s ease;
}