:root {
    color-scheme: dark;
    --bs-body-bg: #0d1117;
    --bs-body-color: #e6edf3;
    --bs-border-color: #30363d;
    --bs-card-bg: #161b22;
}

body {
    background-color: #0d1117 !important;
    color: #e6edf3 !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
    min-height: 100vh;
}

.container-card {
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

h1, h2, h3, h4, h5, h6 {
    color: #f0f6fc;
    font-weight: 600;
}

/* Form controls & Calendar date picker */
.form-control, .form-select {
    background-color: #0d1117 !important;
    border: 1px solid #30363d !important;
    color: #e6edf3 !important;
    border-radius: 6px;
    padding: 10px 14px;
    color-scheme: dark;
}

.form-control:focus, .form-select:focus {
    background-color: #0d1117 !important;
    border-color: #58a6ff !important;
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.25) !important;
    color: #f0f6fc !important;
}

input[type="datetime-local"], input[type="date"], input[type="time"] {
    color-scheme: dark !important;
}

/* Tables */
.table-responsive {
    background-color: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.table {
    margin-bottom: 0;
    --bs-table-bg: #161b22;
    --bs-table-border-color: #30363d;
    --bs-table-color: #e6edf3;
    --bs-table-hover-bg: #1f242c;
    --bs-table-hover-color: #ffffff;
}

.table thead th {
    background-color: #0d1117 !important;
    color: #8b949e !important;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #30363d !important;
    padding: 12px 16px;
}

.table tbody td {
    padding: 12px 16px;
    border-color: #30363d;
    vertical-align: middle;
}

.table tbody tr:hover td {
    background-color: #1f242c !important;
}

/* Buttons */
.btn {
    border-radius: 6px;
    font-weight: 500;
    padding: 6px 14px;
    transition: all 0.15s ease-in-out;
}

.btn-primary {
    background-color: #238636;
    border-color: #238636;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #2ea043;
    border-color: #2ea043;
}

.btn-danger {
    background-color: #da3633;
    border-color: #da3633;
}

.btn-danger:hover {
    background-color: #f85149;
    border-color: #f85149;
}

.btn-warning {
    background-color: #d29922;
    border-color: #d29922;
    color: #161b22;
}

.btn-warning:hover {
    background-color: #e3b341;
    border-color: #e3b341;
    color: #161b22;
}

.btn-outline-secondary {
    color: #8b949e;
    border-color: #30363d;
}

.btn-outline-secondary:hover {
    background-color: #30363d;
    color: #f0f6fc;
    border-color: #8b949e;
}

/* Status Badges */
.badge-status {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}
.status-active {
    background-color: rgba(35, 134, 54, 0.2);
    color: #3fb950;
    border: 1px solid rgba(35, 134, 54, 0.4);
}
.status-revoked {
    background-color: rgba(218, 54, 51, 0.2);
    color: #f85149;
    border: 1px solid rgba(218, 54, 51, 0.4);
}
.status-expired {
    background-color: rgba(210, 153, 34, 0.2);
    color: #d29922;
    border: 1px solid rgba(210, 153, 34, 0.4);
}