:root {
    --vb-navy-900: #070d1e;
    --vb-navy-800: #0b1533;
    --vb-navy-700: #101f4a;
    --vb-navy-600: #172c68;
    --vb-cyan: #00f2fe;
    --vb-cyan-hover: #38f9d7;
    --vb-blue: #4facfe;
    --vb-gold: #ffd700;
    --vb-gold-dark: #cca100;
    --vb-card-bg: rgba(13, 24, 56, 0.85);
    --vb-card-border: rgba(0, 242, 254, 0.25);
    --vb-text-main: #f8fafc;
    --vb-text-muted: #94a3b8;
    --vb-gradient-cyan: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --vb-gradient-gold: linear-gradient(135deg, #ffe066 0%, #f5af19 100%);
    --vb-gradient-card: linear-gradient(145deg, rgba(16, 31, 74, 0.85) 0%, rgba(9, 18, 44, 0.95) 100%);
}

.text-muted {
    color: #94a3b8 !important;
}

.text-light-muted {
    color: #cbd5e1 !important;
}

.form-label, label {
    color: #e2e8f0 !important;
    font-weight: 500;
}

html, body {
    overflow-x: clip !important;
    overflow-x: hidden !important;
    max-width: 100vw !important;
    width: 100% !important;
    position: relative;
}

body {
    background-color: var(--vb-navy-900);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 242, 254, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(255, 215, 0, 0.04) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(79, 172, 254, 0.03) 0%, transparent 60%);
    color: var(--vb-text-main);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    overflow-x: clip !important;
    overflow-x: hidden !important;
    max-width: 100vw !important;
    width: 100% !important;
}

main {
    overflow-x: clip;
    width: 100%;
    max-width: 100vw;
}

/* Glassmorphic Cards */
.vb-card {
    background: var(--vb-gradient-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--vb-card-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.vb-card p, .vb-card span.text-muted, .vb-card small.text-muted {
    color: #cbd5e1 !important;
}

.vb-card small {
    color: #94a3b8;
}

.table td, .table th {
    color: #f8fafc !important;
}

.table td small.text-muted {
    color: #cbd5e1 !important;
}

.vb-card-gold {
    border-color: rgba(255, 215, 0, 0.25);
}

.vb-card-gold:hover {
    border-color: rgba(255, 215, 0, 0.5);
    box-shadow: 0 12px 40px 0 rgba(255, 215, 0, 0.15);
}

/* Gradients & Texts */
.text-cyan {
    color: var(--vb-cyan) !important;
}

.text-gold {
    color: var(--vb-gold) !important;
}

.text-gradient-cyan {
    background: var(--vb-gradient-cyan);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
    background: var(--vb-gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn-cyan {
    background: var(--vb-gradient-cyan);
    color: #070d1e;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    padding: 0.6rem 1.4rem;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
    transition: all 0.25s ease;
}

.btn-cyan:hover {
    color: #070d1e;
    filter: brightness(1.1);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.45);
    transform: translateY(-1px);
}

.btn-gold {
    background: var(--vb-gradient-gold);
    color: #070d1e;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    padding: 0.6rem 1.4rem;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
    transition: all 0.25s ease;
}

.btn-gold:hover {
    color: #070d1e;
    filter: brightness(1.1);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.45);
    transform: translateY(-1px);
}

.btn-outline-cyan {
    background: transparent;
    color: var(--vb-cyan);
    border: 1px solid var(--vb-cyan);
    border-radius: 10px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-outline-cyan:hover {
    background: rgba(0, 242, 254, 0.12);
    color: var(--vb-cyan);
    border-color: var(--vb-cyan);
}

.btn-outline-gold {
    background: rgba(229, 160, 36, 0.08);
    color: var(--vb-gold) !important;
    border: 1.5px solid var(--vb-gold);
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.25s ease;
    box-shadow: 0 2px 10px rgba(229, 160, 36, 0.15);
}

.btn-outline-gold:hover {
    background: var(--vb-gradient-gold);
    color: #070d1e !important;
    border-color: var(--vb-gold);
    box-shadow: 0 6px 20px rgba(229, 160, 36, 0.45);
    transform: translateY(-2px);
}

/* Sidebar */
.vb-sidebar {
    width: 260px;
    background: rgba(11, 21, 51, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--vb-card-border);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1040;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.vb-sidebar-brand {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--vb-card-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.vb-nav-item {
    padding: 0.75rem 1.25rem;
    margin: 0.25rem 0.75rem;
    border-radius: 10px;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.vb-nav-item i {
    font-size: 1.15rem;
    width: 22px;
    text-align: center;
    color: #94a3b8;
    transition: color 0.2s ease;
}

.vb-nav-item:hover {
    color: #ffffff;
    background: rgba(0, 242, 254, 0.08);
}

.vb-nav-item:hover i {
    color: var(--vb-cyan);
}

.vb-nav-item.active {
    color: #070d1e !important;
    background: var(--vb-gradient-cyan);
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.35);
}

.vb-nav-item.active i {
    color: #070d1e !important;
}

/* Main Content Area */
.vb-main {
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
}

.vb-topbar {
    height: 70px;
    background: rgba(11, 21, 51, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--vb-card-border);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1030;
}

/* Form Controls */
.form-control, .form-select {
    background-color: rgba(16, 31, 74, 0.6) !important;
    border: 1px solid rgba(0, 242, 254, 0.25) !important;
    color: #f0f4fc !important;
    border-radius: 10px;
    padding: 0.65rem 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--vb-cyan) !important;
    box-shadow: 0 0 0 0.2rem rgba(0, 242, 254, 0.2) !important;
    background-color: rgba(16, 31, 74, 0.85) !important;
}

.form-control::placeholder {
    color: rgba(142, 163, 205, 0.5) !important;
}

/* DataTables & Tables */
.table {
    color: #f8fafc !important;
    border-color: rgba(0, 242, 254, 0.15) !important;
    vertical-align: middle;
    background-color: transparent !important;
}

.table tr, .table th, .table td {
    background-color: transparent !important;
    color: #f8fafc !important;
}

.table th {
    background: rgba(16, 31, 74, 0.85) !important;
    color: var(--vb-cyan) !important;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--vb-card-border) !important;
    padding: 1rem 0.75rem;
}

.table td {
    padding: 1rem 0.75rem;
    border-bottom: 1px solid rgba(0, 242, 254, 0.1) !important;
}

.table-hover tbody tr:hover td {
    background-color: rgba(0, 242, 254, 0.08) !important;
}

.table-responsive {
    background: rgba(11, 21, 51, 0.6) !important;
    border-radius: 12px;
    border: 1px solid rgba(0, 242, 254, 0.15);
}

/* Global Alert Dark Styles */
.alert {
    background-color: rgba(16, 31, 74, 0.8) !important;
    border: 1px solid rgba(0, 242, 254, 0.25) !important;
    color: #f8fafc !important;
    border-radius: 12px;
}

.alert-dark, .alert-info, .alert-secondary {
    background-color: rgba(16, 31, 74, 0.85) !important;
    border-color: rgba(0, 242, 254, 0.3) !important;
    color: #f8fafc !important;
}

/* Badges */
.badge-active {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 30px;
    padding: 0.35rem 0.85rem;
    font-weight: 600;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 30px;
    padding: 0.35rem 0.85rem;
    font-weight: 600;
}

.badge-blocked {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 30px;
    padding: 0.35rem 0.85rem;
    font-weight: 600;
}

/* Scroller Ticker */
.vb-ticker-wrap {
    width: 100%;
    max-width: 100vw;
    overflow: hidden;
    contain: paint;
    position: relative;
    background: rgba(16, 31, 74, 0.7);
    border-top: 1px solid var(--vb-card-border);
    border-bottom: 1px solid var(--vb-card-border);
    padding: 8px 0;
    box-sizing: border-box;
}

.vb-ticker {
    display: inline-block;
    white-space: nowrap;
    padding-left: 100%;
    animation: vb-ticker 30s linear infinite;
}

.vb-ticker:hover {
    animation-play-state: paused;
}

@keyframes vb-ticker {
    0% { transform: translate3d(0, 0, 0); }
    100% { transform: translate3d(-100%, 0, 0); }
}

/* Matrix Tree Styling */
.tree {
    display: flex;
    justify-content: center;
    padding: 20px 0;
}

.tree ul {
    padding-top: 20px;
    position: relative;
    transition: all 0.5s;
    display: flex;
    justify-content: center;
}

.tree li {
    float: left;
    text-align: center;
    list-style-type: none;
    position: relative;
    padding: 20px 5px 0 5px;
    transition: all 0.5s;
}

.tree li::before, .tree li::after {
    content: '';
    position: absolute;
    top: 0;
    right: 50%;
    border-top: 1px solid rgba(0, 242, 254, 0.4);
    width: 50%;
    height: 20px;
}

.tree li::after {
    right: auto;
    left: 50%;
    border-left: 1px solid rgba(0, 242, 254, 0.4);
}

.tree li:only-child::after, .tree li:only-child::before {
    display: none;
}

.tree li:only-child {
    padding-top: 0;
}

.tree li:first-child::before, .tree li:last-child::after {
    border: 0 none;
}

.tree li:last-child::before {
    border-right: 1px solid rgba(0, 242, 254, 0.4);
    border-radius: 0 5px 0 0;
}

.tree li:first-child::after {
    border-radius: 5px 0 0 0;
}

.tree ul ul::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    border-left: 1px solid rgba(0, 242, 254, 0.4);
    width: 0;
    height: 20px;
}

.tree-node-card {
    border: 1px solid var(--vb-card-border);
    padding: 10px 14px;
    text-decoration: none;
    color: var(--vb-text-main);
    display: inline-block;
    border-radius: 12px;
    transition: all 0.3s;
    background: var(--vb-gradient-card);
    min-width: 140px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.tree-node-card:hover {
    border-color: var(--vb-cyan);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.3);
    transform: translateY(-3px);
}

.tree-node-card.active-node {
    border-color: rgba(16, 185, 129, 0.5);
}

.tree-node-card.empty-node {
    border: 1px dashed rgba(142, 163, 205, 0.3);
    opacity: 0.6;
}

@media (max-width: 991.98px) {
    .vb-sidebar {
        transform: translateX(-100%);
    }
    .vb-sidebar.show {
        transform: translateX(0);
    }
    .vb-main {
        margin-left: 0;
    }
}

/* Mobile Viewport Safety & Zero Overflow Clamp */
@media (max-width: 767.98px) {
    .container, .container-fluid {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
        max-width: 100vw !important;
        overflow-x: clip;
    }
    .row {
        margin-left: -0.5rem !important;
        margin-right: -0.5rem !important;
    }
    .row > * {
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
        max-width: 100% !important;
    }
    .row.g-5 {
        --bs-gutter-x: 1rem !important;
        --bs-gutter-y: 1.5rem !important;
    }
}