:root {
    --zero-navy: #02154e;
    --zero-orange: #f9ba00;
    --zero-green: #005530;
    --zero-red: #D51635;
    --zero-white: #ffffff;
    --zero-black: #1a1a1a;
    --zero-gray-dark: #64748b;
    --zero-gray-medium: #94a3b8;
    --zero-gray-light: #e2e8f0;
    --zero-gray-bg: #f8fafc;

    --zero-space-xs: 0.5rem;
    --zero-space-sm: 1rem;
    --zero-space-md: 2rem;
    --zero-space-lg: 4rem;
    
    --zero-radius-sm: 6px;
    --zero-radius-md: 8px;
    --zero-radius-lg: 12px;
    
    /* Header Specifics from Inspiration */
    --header-bg: #ffffff;
    --header-height: 80px; /* Increased for new header */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--zero-gray-bg);
    color: var(--text-primary);
    line-height: 1.6;
    padding-top: 4px; /* Space for color bar */
}

.zero-color-bar {
    height: 4px;
    width: 100%;
    background: linear-gradient(90deg, 
        var(--zero-green) 0%, var(--zero-green) 25%, 
        var(--zero-red) 25%, var(--zero-red) 50%, 
        var(--zero-navy) 50%, var(--zero-navy) 75%, 
        var(--zero-orange) 75%, var(--zero-orange) 100%);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1002;
}

/* --- App Header (Zero@Industry Style) --- */
.app-header {
    background: var(--zero-navy);
    color: var(--zero-white);
    padding: var(--zero-space-md);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: relative;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

.header-content {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    max-width: 1600px;
    margin: 0 auto;
    gap: var(--zero-space-md);
}

.header-logo {
    width: 80px;
    height: 80px;
    opacity: 0.95;
    transition: opacity 0.3s ease;
}

.header-logo:hover {
    opacity: 1;
}

.title-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.title {
    font-size: 1.75rem;
    font-weight: 300;
    line-height: 1.2;
    color: var(--zero-white);
}

.title-at {
    color: var(--zero-orange);
}

.subtitle {
    font-size: 0.875rem;
    font-weight: 300;
    color: rgba(255,255,255,0.7);
}

.subtitle-at {
    color: var(--zero-orange);
}

/* --- Container & Layout --- */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--zero-space-md);
}

/* Grid System */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Card Styling */
.card {
    background: var(--zero-white);
    border-radius: var(--zero-radius-lg);
    padding: 1.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid var(--zero-gray-light);
    position: relative;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.card.navy-accent { border-top: 4px solid var(--zero-navy); }
.card.green-accent { border-top: 4px solid var(--zero-green); }
.card.orange-accent { border-top: 4px solid var(--zero-orange); }
.card.red-accent { border-top: 4px solid var(--zero-red); }

.card-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.card-value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--zero-navy);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.card-unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.card-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Section Headers */
.section-header {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--zero-navy);
    margin-bottom: 1.5rem;
    margin-top: 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.section-header i {
    color: var(--zero-navy); /* Mono Navy Icon for Headers */
}

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    background: var(--zero-navy);
    color: var(--zero-white);
    border: none;
    border-radius: var(--zero-radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}
.btn:hover {
    background-color: #03206b;
    transform: translateY(-1px);
}

/* Tabs */
.tabbar {
    display: flex;
    gap: 2rem;
    border-bottom: 1px solid var(--zero-gray-light);
    margin-bottom: 2rem;
}

.tab {
    background: none;
    border: none;
    padding: 1rem 0;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab:hover { color: var(--zero-navy); }
.tab.tab-active {
    color: var(--zero-navy);
    border-bottom-color: var(--zero-navy);
    font-weight: 600;
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}
.status-good { background-color: #dcfce7; color: #166534; }
.status-warning { background-color: #fef9c3; color: #854d0e; }
.status-critical { background-color: #fee2e2; color: #991b1b; }

/* Tables */
.data-table table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--zero-white);
    border-radius: var(--zero-radius-lg);
    overflow: hidden;
    border: 1px solid var(--zero-gray-light);
}
.data-table th {
    background: var(--zero-gray-bg);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--zero-gray-light);
}
.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--zero-gray-light);
    font-size: 0.875rem;
    color: var(--text-primary);
}
.data-table tr:last-child td { border-bottom: none; }

/* Forms */
.input, .select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--zero-gray-light);
    border-radius: var(--zero-radius-sm);
    font-size: 0.9rem;
    background: var(--zero-white);
    color: var(--text-primary);
    transition: border-color 0.2s;
}
.input:focus, .select:focus {
    outline: none;
    border-color: var(--zero-navy);
    box-shadow: 0 0 0 3px rgba(2, 21, 78, 0.1);
}
.form-row {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--zero-gray-light);
    margin-top: 4rem;
    background: var(--zero-white);
}
.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--zero-navy);
    margin-bottom: 0.75rem;
}

/* Icons - Mono Navy Style */
.icon { 
    width: 48px; 
    height: 48px; 
    border-radius: 12px;
    display: flex; 
    align-items: center; 
    justify-content: center;
    font-size: 1.25rem; 
    margin-bottom: 1rem;
    background-color: rgba(2, 21, 78, 0.05); /* Very light navy bg */
    color: var(--zero-navy); /* Mono Navy */
}

/* Override old colored icons if specific classes are still used */
.icon-navy, .icon-green, .icon-orange, .icon-red { 
    background-color: rgba(2, 21, 78, 0.05); 
    color: var(--zero-navy); 
}

/* Progress Bars */
.progress-container {
    width: 100%;
    background-color: var(--zero-gray-light);
    border-radius: 999px;
    height: 6px;
    margin-top: 0.75rem;
    overflow: hidden;
}
.progress-bar {
    height: 100%;
    border-radius: 999px;
    transition: width 0.5s ease;
}
.progress-green { background-color: var(--zero-green); }
.progress-orange { background-color: var(--zero-orange); }
.progress-red { background-color: var(--zero-red); }

/* Modal */
.role-panel-modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.role-panel-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
}
.role-panel-content {
    background: var(--zero-white);
    border-radius: var(--zero-radius-lg);
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    z-index: 10001;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
}
.role-panel-header {
    background: var(--zero-white);
    color: var(--zero-navy);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--zero-gray-light);
}
.role-panel-body {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
}

/* ML Demo Elements */
.kpi-demo-line {
  font-weight: 600;
  color: var(--zero-green);
  margin-bottom: 0.3rem;
}
.kpi-demo-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.zero-demo-badge {
  display: inline-block;
  margin-left: 0.45rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  background: rgba(249,186,0,0.18);
  color: var(--zero-navy);
  border: 1px solid rgba(249,186,0,0.55);
  vertical-align: middle;
}

/* Global Icon Overrides for Consistency */
.fa-solid, .fa-regular, .fa-brands { color: var(--zero-navy); }
/* Restore status colors for specific contexts */
.status-good .fa-solid { color: #166534; }
.status-warning .fa-solid { color: #854d0e; }
.status-critical .fa-solid { color: #991b1b; }