/* CHORUS Brand Variables */
:root {
    font-size: 18px; /* CHORUS proportional base */
    /* Carbon Colors (Primary Neutral) */
    --carbon-950: #000000;
    --carbon-900: #0a0a0a;
    --carbon-800: #1a1a1a;
    --carbon-700: #2a2a2a;
    --carbon-600: #666666;
    --carbon-500: #808080;
    --carbon-400: #a0a0a0;
    --carbon-300: #c0c0c0;
    --carbon-200: #e0e0e0;
    --carbon-100: #f0f0f0;
    --carbon-50: #f8f8f8;
    
    /* Mulberry Colors (Brand Accent) */
    --mulberry-950: #0b0213;
    --mulberry-900: #1a1426;
    --mulberry-800: #2a2639;
    --mulberry-700: #3a384c;
    --mulberry-600: #4a4a5f;
    --mulberry-500: #5a5c72;
    --mulberry-400: #7a7e95;
    --mulberry-300: #9aa0b8;
    --mulberry-200: #bac2db;
    --mulberry-100: #dae4fe;
    --mulberry-50: #f0f4ff;
    
    /* Ocean Colors (Primary Action) */
    --ocean-950: #2a3441;
    --ocean-900: #3a4654;
    --ocean-800: #4a5867;
    --ocean-700: #5a6c80;
    --ocean-600: #6a7e99;
    --ocean-500: #7a90b2;
    --ocean-400: #8ba3c4;
    --ocean-300: #9bb6d6;
    --ocean-200: #abc9e8;
    --ocean-100: #bbdcfa;
    --ocean-50: #cbefff;
    
    /* Eucalyptus Colors (Success) */
    --eucalyptus-950: #2a3330;
    --eucalyptus-900: #3a4540;
    --eucalyptus-800: #4a5750;
    --eucalyptus-700: #515d54;
    --eucalyptus-600: #5a6964;
    --eucalyptus-500: #6a7974;
    --eucalyptus-400: #7a8a7f;
    --eucalyptus-300: #8a9b8f;
    --eucalyptus-200: #9aac9f;
    --eucalyptus-100: #aabdaf;
    --eucalyptus-50: #bacfbf;
    
    /* Coral Colors (Error/Warning) */
    --coral-700: #dc2626;
    --coral-500: #ef4444;
    --coral-300: #fca5a5;
}

/* Base Styles with CHORUS Branding */
body { 
    font-family: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; 
    margin: 0; 
    padding: 0; 
    background: var(--carbon-950);
    color: var(--carbon-100);
    line-height: 1.6;
}

/* CHORUS Dark Mode Header */
.header { 
    background: linear-gradient(135deg, var(--carbon-900) 0%, var(--mulberry-900) 100%); 
    color: white; 
    padding: 1.33rem 0; /* 24px at 18px base */
    border-bottom: 1px solid var(--mulberry-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1.33rem;
    padding-right: 1.33rem;
}

.header-content { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 1.33rem; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.logo { 
    font-family: 'Exo', sans-serif;
    font-size: 1.33rem; /* 24px at 18px base */
    font-weight: 300; 
    color: white;
    display: flex;
    align-items: center;
    gap: 0.67rem;
}

.logo .tagline {
    font-size: 0.78rem;
    color: var(--mulberry-300);
    font-weight: 400;
}

.logo::before {
    content: "";
    font-size: 1.5rem;
}

.status-info {
    display: flex;
    align-items: center;
    color: var(--eucalyptus-400);
    font-size: 0.78rem;
}

.status-dot { 
    width: 0.67rem; 
    height: 0.67rem; 
    border-radius: 50%; 
    background: var(--eucalyptus-400); 
    margin-right: 0.44rem; 
    display: inline-block; 
}

/* CHORUS Navigation */
.nav { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 1.33rem; 
    display: flex; 
    border-bottom: 1px solid var(--mulberry-800); 
    background: var(--carbon-900); 
}

.nav-tab { 
    padding: 0.83rem 1.39rem; 
    cursor: pointer; 
    border-bottom: 3px solid transparent; 
    font-weight: 500; 
    transition: all 0.2s;
    color: var(--mulberry-300);
    background: none;
    border: none;
    font-family: inherit;
}

.nav-tab.active { 
    border-bottom-color: var(--ocean-500); 
    color: var(--ocean-300); 
    background: var(--carbon-800); 
}

.nav-tab:hover { 
    background: var(--carbon-800);
    color: var(--ocean-400);
}

.content { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 1.33rem; 
}

.tab-content { 
    display: none; 
}

.tab-content.active { 
    display: block; 
}

/* CHORUS Card System */
.dashboard-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); 
    gap: 1.33rem; 
    margin-bottom: 2rem; 
}

.card { 
    background: var(--carbon-900); 
    border-radius: 0; 
    padding: 1.33rem; 
    box-shadow: 0 0.22rem 0.89rem rgba(0,0,0,0.3); 
    border: 1px solid var(--mulberry-800); 
}

.card h3 { 
    margin: 0 0 1rem 0; 
    color: var(--carbon-100); 
    font-size: 1rem; 
    display: flex; 
    align-items: center;
    font-weight: 600;
}

.card h2 {
    margin: 0 0 1rem 0; 
    color: var(--carbon-100); 
    font-size: 1.33rem; 
    display: flex; 
    align-items: center;
    font-weight: 600;
}

.card-icon { 
    width: 1.33rem; 
    height: 1.33rem; 
    margin-right: 0.67rem; 
}

/* Metrics with CHORUS Colors */
.metric { 
    display: flex; 
    justify-content: space-between; 
    margin: 0.44rem 0; 
    padding: 0.44rem 0; 
}

.metric:not(:last-child) { 
    border-bottom: 1px solid var(--mulberry-900); 
}

.metric-label { 
    color: var(--mulberry-300); 
}

.metric-value { 
    font-weight: 600; 
    color: var(--carbon-100); 
}

/* Task Items with CHORUS Brand Colors */
.task-item { 
    background: var(--carbon-800); 
    border-radius: 0; 
    padding: 0.89rem; 
    margin-bottom: 0.67rem; 
    border-left: 4px solid var(--mulberry-600); 
}

.task-item.priority-high { 
    border-left-color: var(--coral-500); 
}

.task-item.priority-medium { 
    border-left-color: var(--ocean-500); 
}

.task-item.priority-low { 
    border-left-color: var(--eucalyptus-500); 
}

.task-title { 
    font-weight: 600; 
    color: var(--carbon-100); 
    margin-bottom: 0.44rem; 
}

.task-meta { 
    display: flex; 
    justify-content: space-between; 
    color: var(--mulberry-300); 
    font-size: 0.78rem; 
}

/* Agent Cards */
.agent-card { 
    background: var(--carbon-800); 
    border-radius: 0; 
    padding: 0.89rem; 
    margin-bottom: 0.67rem; 
}

.agent-status { 
    width: 0.44rem; 
    height: 0.44rem; 
    border-radius: 50%; 
    margin-right: 0.44rem; 
    display: inline-block; 
}

.agent-status.online { 
    background: var(--eucalyptus-400); 
}

.agent-status.offline { 
    background: var(--carbon-500); 
}

.team-member { 
    display: flex; 
    align-items: center; 
    padding: 0.44rem; 
    background: var(--carbon-900); 
    border-radius: 0; 
    margin-bottom: 0.44rem; 
}

/* CHORUS Button System */
.btn { 
    padding: 0.44rem 0.89rem; 
    border-radius: 0.375rem; 
    border: none; 
    font-weight: 500; 
    cursor: pointer; 
    transition: all 0.2s;
    font-family: 'Inter Tight', sans-serif;
}

.btn-primary { 
    background: var(--ocean-600); 
    color: white; 
}

.btn-primary:hover { 
    background: var(--ocean-500); 
}

.btn-secondary { 
    background: var(--mulberry-700); 
    color: var(--mulberry-200); 
}

.btn-secondary:hover { 
    background: var(--mulberry-600); 
}

/* Empty States */
.empty-state { 
    text-align: center; 
    padding: 2.22rem 1.33rem; 
    color: var(--mulberry-300); 
}

.empty-state-icon { 
    font-size: 2.67rem; 
    margin-bottom: 0.89rem;
    text-align: center;
}

/* BackBeat Pulse Visualization */
#pulse-trace {
    background: var(--carbon-800);
    border-radius: 0;
    border: 1px solid var(--mulberry-800);
}

/* Additional CHORUS Styling */
.backbeat-label {
    color: var(--mulberry-300);
    font-size: 0.67rem;
    text-align: center;
    margin-top: 0.44rem;
}

/* Modal and Overlay Styling */
.modal-overlay {
    background: rgba(0, 0, 0, 0.8) !important;
}

.modal-content {
    background: var(--carbon-900) !important;
    color: var(--carbon-100) !important;
    border: 1px solid var(--mulberry-800) !important;
}

.modal-content input, .modal-content select, .modal-content textarea {
    background: var(--carbon-800);
    color: var(--carbon-100);
    border: 1px solid var(--mulberry-700);
    border-radius: 0;
    padding: 0.44rem 0.67rem;
    font-family: inherit;
}

.modal-content input:focus, .modal-content select:focus, .modal-content textarea:focus {
    border-color: var(--ocean-500);
    outline: none;
}

.modal-content label {
    color: var(--mulberry-200);
    display: block;
    margin-bottom: 0.33rem;
    font-weight: 500;
}

/* Repository Cards */
.repository-item {
    background: var(--carbon-800);
    border-radius: 0;
    padding: 0.89rem;
    margin-bottom: 0.67rem;
    border: 1px solid var(--mulberry-800);
}

.repository-item h4 {
    color: var(--carbon-100);
    margin: 0 0 0.44rem 0;
}

.repository-meta {
    color: var(--mulberry-300);
    font-size: 0.78rem;
    margin-bottom: 0.44rem;
}

/* Success/Error States */
.success-indicator {
    color: var(--eucalyptus-400);
}

.error-indicator {
    color: var(--coral-500);
}

.warning-indicator {
    color: var(--ocean-400);
}

/* Tabs styling */
.tabs {
    margin-bottom: 1.33rem;
}

.tabs h4 {
    color: var(--carbon-100);
    margin-bottom: 0.67rem;
    font-size: 0.89rem;
    font-weight: 600;
}

/* Form styling improvements */
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

form > div {
    display: flex;
    flex-direction: column;
    gap: 0.33rem;
}

form label {
    font-weight: 500;
    color: var(--mulberry-200);
}

form input[type="checkbox"] {
    margin-right: 0.5rem;
    accent-color: var(--ocean-500);
}