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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #0d1117;
    color: #c9d1d9;
    min-height: 100vh;
}

.navbar {
    background: #161b22;
    border-bottom: 1px solid #30363d;
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #58a6ff;
}

.nav-links a {
    color: #8b949e;
    text-decoration: none;
    margin-left: 20px;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #58a6ff;
}

.container {
    max-width: 1200px;
    margin: 24px auto;
    padding: 0 16px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

.card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 24px;
}

.card h2 {
    color: #e6edf3;
    margin-bottom: 16px;
    font-size: 1.2rem;
    border-bottom: 1px solid #30363d;
    padding-bottom: 10px;
}

.card h3 {
    color: #c9d1d9;
    margin: 16px 0 10px;
    font-size: 1rem;
}

hr {
    border: none;
    border-top: 1px solid #30363d;
    margin: 20px 0;
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: #8b949e;
    margin-bottom: 4px;
}

input[type="text"],
input[type="number"],
input[type="password"],
select {
    width: 100%;
    padding: 8px 12px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #c9d1d9;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

input:focus, select:focus {
    border-color: #58a6ff;
}

.btn {
    padding: 8px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

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

.btn-primary:disabled {
    background: #1a5a2a;
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-secondary {
    background: #21262d;
    color: #c9d1d9;
    border: 1px solid #30363d;
}

.btn-secondary:hover {
    background: #30363d;
}

.btn-small {
    padding: 4px 12px;
    font-size: 0.8rem;
}

.form-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.stock-box {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 12px;
}

.stock-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid #21262d;
}

.stock-item:last-child {
    border-bottom: none;
}

.stock-category {
    font-weight: 600;
    color: #58a6ff;
    text-transform: capitalize;
}

.stock-count {
    font-size: 1.1rem;
    font-weight: 700;
    color: #3fb950;
}

.stock-price {
    color: #8b949e;
    font-size: 0.85rem;
}

.stock-loading, .stock-error, .stock-empty {
    text-align: center;
    padding: 12px;
    color: #8b949e;
}

.stock-error {
    color: #f85149;
}

.format-hint {
    margin-top: 10px;
    padding: 8px 12px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #8b949e;
    font-size: 0.75rem;
    font-family: 'Consolas', 'Courier New', monospace;
    word-break: break-all;
}

.price-tag {
    color: #8b949e;
    font-size: 0.9rem;
}

.price-tag strong {
    color: #3fb950;
}

.card-info {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 14px;
    font-size: 0.9rem;
}

.card-info.success {
    background: #0d2818;
    border: 1px solid #238636;
    color: #3fb950;
}

.card-info.error {
    background: #2d1117;
    border: 1px solid #f85149;
    color: #f85149;
}

.hidden {
    display: none !important;
}

.result-area textarea {
    width: 100%;
    height: 300px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    color: #c9d1d9;
    padding: 12px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.85rem;
    resize: vertical;
    outline: none;
}

.result-area textarea:focus {
    border-color: #58a6ff;
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
}

#result-count {
    color: #3fb950;
    font-size: 0.85rem;
    flex: 1;
}

.logs-area {
    margin-top: 12px;
}

.logs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    margin-top: 10px;
}

.logs-table th {
    background: #21262d;
    color: #8b949e;
    padding: 6px 10px;
    text-align: left;
    font-weight: 600;
}

.logs-table td {
    padding: 6px 10px;
    border-bottom: 1px solid #21262d;
}

.logs-table tr:hover td {
    background: #1c2128;
}

.logs-table a {
    color: #58a6ff;
    text-decoration: none;
}

.logs-table a:hover {
    text-decoration: underline;
}

.expired {
    color: #8b949e;
    font-style: italic;
}

.text-muted {
    color: #8b949e;
    font-size: 0.85rem;
}

code {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.85rem;
}

.card-code-cell {
    font-size: 0.75rem;
    word-break: break-all;
}

.badge-active {
    color: #3fb950;
    font-weight: 600;
}

.badge-inactive {
    color: #8b949e;
}

.badge-exported {
    color: #d29922;
    font-weight: 600;
}

.pager {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.gen-result {
    margin-top: 16px;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 14px;
    max-height: 300px;
    overflow-y: auto;
}

.gen-result h4 {
    color: #3fb950;
    margin-bottom: 8px;
}

.gen-card-item {
    padding: 4px 0;
    font-size: 0.85rem;
    border-bottom: 1px solid #21262d;
}

.gen-card-item:last-child {
    border-bottom: none;
}

.gen-card-item code {
    color: #58a6ff;
    user-select: all;
}