:root {
    --bg-main: #0b0f19;
    --bg-card: #111827;
    --bg-card-hover: #1f2937;
    --border-color: #1f2937;
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --accent-blue: #0ea5e9;
    --accent-blue-hover: #0284c7;
    --accent-green: #10b981;
}

body {
    background-color: var(--bg-main) !important;
    color: var(--text-main) !important;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Sidebar Dark */
.sidebar {
    width: 260px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    padding: 20px;
}

.sidebar .brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar .nav-link {
    color: var(--text-muted);
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 5px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
    background-color: var(--bg-card-hover);
    color: var(--text-main);
}

.sidebar .nav-link.active {
    border-left: 4px solid var(--accent-blue);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    padding: 30px;
}

@media (max-width: 992px) {
    .sidebar { width: 100%; position: relative; min-height: auto; }
    .main-content { margin-left: 0; padding: 15px; }
}

/* Cards & Modais */
.card-custom {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-main);
}

.card-custom .card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-main);
}

.text-muted {
    color: #9ca3af !important;
}

/* Tabelas e Formuários */
.table-dark-custom {
    color: var(--text-main);
    background-color: transparent;
}
.table-dark-custom th, .table-dark-custom td {
    border-color: var(--border-color);
    background-color: transparent;
    color: var(--text-main);
}
.form-control, .form-select {
    background-color: #111827 !important;
    border: 1px solid var(--border-color) !important;
    color: #ffffff !important;
}
.form-control:focus, .form-select:focus {
    border-color: var(--accent-blue) !important;
    box-shadow: 0 0 0 0.25rem rgba(14, 165, 233, 0.25) !important;
}

.modal-content {
    background-color: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.modal-header, .modal-footer {
    border-color: var(--border-color);
}