:root {
    --dash-bg: #f8fafc;
    --dash-surface: #ffffff;
    --dash-border: #e5e7eb;
    --dash-text: #111827;
    --dash-muted: #6b7280;
    --dash-radius: 14px;
    --dash-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
    --brand-primary: #0A192F;
    --brand-accent: #2563eb;
}

body {
    background: var(--dash-bg);
    color: var(--dash-text);
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem;
}

.auth-card {
    width: 100%;
    max-width: 430px;
    border: 1px solid var(--dash-border);
    border-radius: var(--dash-radius);
    box-shadow: var(--dash-shadow);
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 56px 0 0;
    border-right: 1px solid var(--dash-border);
    background: #ffffff;
}

.sidebar .nav-link {
    color: #334155;
    font-size: .94rem;
    padding: .55rem 1rem;
    border-radius: 10px;
    margin: 0 .5rem .15rem;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: var(--brand-primary);
    background: #eef2ff;
}

.sidebar .feather,
.btn .feather {
    width: 16px;
    height: 16px;
    vertical-align: text-bottom;
}

.sidebar-heading {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .06em;
}

.navbar-brand {
    background: rgba(0, 0, 0, .2);
    font-weight: 600;
}

main {
    padding-top: 56px;
}

.dashboard-card,
.card {
    border: 1px solid var(--dash-border);
    border-radius: var(--dash-radius);
    box-shadow: var(--dash-shadow);
}

.card-header {
    background: #ffffff;
    border-bottom: 1px solid var(--dash-border);
    border-radius: var(--dash-radius) var(--dash-radius) 0 0 !important;
}

.stat-number {
    font-size: 2rem;
    font-weight: 650;
    line-height: 1.1;
}

.text-muted-2 {
    color: var(--dash-muted);
}

.btn-primary {
    --bs-btn-bg: var(--brand-accent);
    --bs-btn-border-color: var(--brand-accent);
    --bs-btn-hover-bg: var(--brand-primary);
    --bs-btn-hover-border-color: var(--brand-primary);
}

.table td,
.table th {
    vertical-align: middle;
}

.form-hint {
    color: var(--dash-muted);
    font-size: .875rem;
}

.brand-logo {
    max-height: 32px;
    max-width: 180px;
    object-fit: contain;
}