:root {
    --bg-root:      #141618;
    --bg-panel:     #1a1d21;
    --bg-raised:    #1f2328;
    --bg-hover:     #252a30;
    --bg-active:    #2a3038;

    --line:         #2c3038;
    --line-mid:     #363d47;
    --line-strong:  #454f5e;

    --accent:       #c0392b;
    --accent-dim:   rgba(192, 57, 43, 0.15);
    --accent-glow:  rgba(192, 57, 43, 0.08);

    --steel:        #7a8fa6;
    --steel-light:  #a8bcce;
    --steel-dim:    #3d4e5f;

    --text-1:   #d8dde3;
    --text-2:   #8a96a3;
    --text-3:   #4d5a66;

    --green:    #3d9970;
    --amber:    #d4882a;
    --red:      #c0392b;
}

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

body {
    background-color: var(--bg-root);
    font-family: 'Segoe UI', system-ui, sans-serif;
    font-size: 14px;
    color: var(--text-1);
    min-height: 100vh;
}

.navbar {
    background-color: var(--bg-panel);
    border-bottom: 2px solid var(--accent);
    height: 56px;
    padding: 0 1.25rem;
}

.navbar-brand {
    color: var(--text-1) !important;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.navbar-brand i {
    color: var(--accent);
    margin-right: 8px;
}

.sidebar {
    min-height: calc(100vh - 56px);
    background-color: var(--bg-panel);
    border-right: 1px solid var(--line);
    padding: 1.25rem 0 1rem;
    position: sticky;
    top: 56px;
    width: 220px;
    flex: 0 0 220px !important;
    max-width: 220px !important;
}

.sidebar .section-label {
    color: var(--steel-dim);
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0.9rem 1.25rem 0.35rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sidebar .section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--line);
}

.sidebar hr {
    border: none;
    border-top: 1px solid var(--line);
    margin: 0.5rem 1rem;
}

.sidebar .nav-link {
    color: var(--text-2);
    padding: 0.5rem 1.1rem;
    border-radius: 0;
    margin: 1px 0;
    font-size: 0.825rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    gap: 9px;
    border-left: 2px solid transparent;
    transition: color 0.12s, background 0.12s, border-color 0.12s;
}

.sidebar .nav-link i {
    font-size: 0.95rem;
    width: 16px;
    text-align: center;
    color: var(--steel-dim);
    transition: color 0.12s;
    margin: 0;
}

.sidebar .nav-link:hover {
    background-color: var(--bg-hover);
    color: var(--steel-light) !important;
    border-left-color: var(--line-strong);
}

.sidebar .nav-link:hover i {
    color: var(--steel-light);
}

.sidebar .nav-link.active {
    background-color: var(--accent-glow);
    color: var(--accent) !important;
    border-left-color: var(--accent);
}

.sidebar .nav-link.active i {
    color: var(--accent);
}

.col-md-10.main-content {
    flex: 1 1 0% !important;
    max-width: calc(100% - 220px) !important;
    width: calc(100% - 220px) !important;
}

.main-content {
    padding: 2rem 2.25rem;
    min-height: calc(100vh - 56px);
    background-color: var(--bg-root);
}

h2, h3 {
    color: var(--text-1);
    font-weight: 600;
    letter-spacing: 0.2px;
}

h3 i {
    color: var(--steel);
    margin-right: 6px;
}

.card {
    background-color: var(--bg-raised) !important;
    border: 1px solid var(--line) !important;
    border-radius: 4px !important;
    box-shadow: none;
    color: var(--text-1);
}

.card-header {
    background-color: var(--bg-panel) !important;
    border-bottom: 1px solid var(--line) !important;
    color: var(--text-1);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.65rem 1rem;
    border-radius: 4px 4px 0 0 !important;
}

.table {
    color: var(--text-1);
    font-size: 0.855rem;
    --bs-table-bg: transparent;
    --bs-table-hover-bg: var(--bg-hover);
    --bs-table-border-color: var(--line);
    margin-bottom: 0;
}

.table thead,
.table thead.table-dark {
    background-color: var(--bg-panel) !important;
}

.table thead th {
    background-color: var(--bg-panel) !important;
    color: var(--steel-dim) !important;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-color: var(--line-mid) !important;
    padding: 0.65rem 1rem;
}

.table tbody td {
    border-color: var(--line);
    padding: 0.6rem 1rem;
    vertical-align: middle;
    color: var(--text-1);
}

.table tbody tr {
    transition: background 0.08s;
}

.table tbody tr:hover {
    background-color: var(--bg-hover) !important;
}

.table tbody tr:hover td {
    color: var(--steel-light);
}

.btn {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    border-radius: 3px;
    padding: 0.35rem 0.85rem;
    transition: all 0.12s;
}

.btn-primary {
    background-color: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background-color: #e04030;
    border-color: #e04030;
    color: #fff;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--line-strong);
    color: var(--text-2);
}

.btn-secondary:hover {
    background-color: var(--bg-hover);
    border-color: var(--steel-dim);
    color: var(--text-1);
}

.btn-warning {
    background-color: transparent;
    border: 1px solid var(--amber);
    color: var(--amber);
}

.btn-warning:hover {
    background-color: rgba(212, 136, 42, 0.12);
    color: #e8a050;
}

.btn-danger {
    background-color: transparent;
    border: 1px solid var(--line-strong);
    color: var(--text-3);
}

.btn-danger:hover {
    background-color: rgba(192, 57, 43, 0.12);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-success {
    background-color: transparent;
    border: 1px solid var(--green);
    color: var(--green);
    font-weight: 600;
}

.btn-success:hover {
    background-color: rgba(61, 153, 112, 0.12);
    color: #5ab893;
}

.form-control,
.form-select {
    background-color: var(--bg-panel);
    border: 1px solid var(--line-mid);
    color: var(--text-1);
    border-radius: 3px;
    font-size: 0.875rem;
    transition: border-color 0.12s;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-raised);
    border-color: var(--steel);
    color: var(--text-1);
    box-shadow: none;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-3);
}

.form-select option {
    background: var(--bg-panel);
    color: var(--text-1);
}

.form-label {
    color: var(--text-2);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 0.35rem;
}

.alert {
    border-radius: 3px;
    font-size: 0.855rem;
    border-left-width: 3px;
}

.alert-info {
    background-color: rgba(122, 143, 166, 0.07);
    border-color: var(--steel-dim);
    border-left-color: var(--steel);
    color: var(--steel-light);
}

.alert-success {
    background-color: rgba(61, 153, 112, 0.07);
    border-color: rgba(61, 153, 112, 0.2);
    border-left-color: var(--green);
    color: #5ab893;
}

.alert-warning {
    background-color: rgba(212, 136, 42, 0.07);
    border-color: rgba(212, 136, 42, 0.2);
    border-left-color: var(--amber);
    color: #e8a050;
}

.alert-danger,
.alert-error {
    background-color: rgba(192, 57, 43, 0.07);
    border-color: rgba(192, 57, 43, 0.2);
    border-left-color: var(--accent);
    color: #e06050;
}

.badge.bg-secondary {
    background-color: var(--bg-active) !important;
    color: var(--text-2);
    border: 1px solid var(--line-mid);
    font-weight: 600;
    font-size: 0.7rem;
    letter-spacing: 0.4px;
    border-radius: 2px;
}

.text-muted { color: var(--text-3) !important; }
small.text-muted { color: var(--text-2) !important; }

a { color: var(--steel-light); }
a:hover { color: var(--text-1); }
.text-decoration-none { text-decoration: none !important; }

code {
    background-color: var(--bg-panel);
    color: var(--steel-light);
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 1px 5px;
    font-size: 0.83em;
}

.dashboard-card {
    transition: border-color 0.12s, background-color 0.12s;
    cursor: pointer;
    border-radius: 4px !important;
}

.dashboard-card:hover {
    background-color: var(--bg-active) !important;
    border-color: var(--line-strong) !important;
}

.dashboard-card:hover i {
    filter: none;
}

.dashboard-card h2 {
    font-size: 2.2rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text-1);
}

.dashboard-card p.text-muted {
    color: var(--text-2) !important;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 600;
}

.text-danger { color: var(--accent) !important; }