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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: #05101a;
    color: #b8d0e0;
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 30px;
    border-bottom: 2px solid #0f2840;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 15px;
}

h1 {
    font-size: 28px;
    background: linear-gradient(135deg, #4fc3f7, #0d47a1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-info {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 14px;
    color: #5a7a9a;
}

.btn-refresh {
    background: #0f2840;
    color: #b8d0e0;
    border: 1px solid #1a3a5a;
    padding: 8px 18px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-refresh:hover {
    background: #1a3a5a;
    border-color: #4fc3f7;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #071828, #0f2840);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #1a3a5a;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-3px);
    border-color: #4fc3f7;
}

.stat-card .number {
    font-size: 36px;
    font-weight: bold;
    background: linear-gradient(135deg, #4fc3f7, #0d47a1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-card .label {
    color: #5a7a9a;
    margin-top: 8px;
    font-size: 14px;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    background: #071828;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    border: 1px solid #0f2840;
    align-items: flex-end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex: 1;
    min-width: 120px;
}

.control-group label {
    font-size: 12px;
    color: #5a7a9a;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.controls input,
.controls select {
    padding: 10px 14px;
    border: 1px solid #0f2840;
    border-radius: 6px;
    background: #05101a;
    color: #b8d0e0;
    font-size: 14px;
    transition: border-color 0.3s;
    width: 100%;
}

.controls input:focus,
.controls select:focus {
    outline: none;
    border-color: #4fc3f7;
}

.controls select option {
    background: #05101a;
    padding: 8px;
}

.btn-generate {
    padding: 10px 30px;
    border: none;
    border-radius: 6px;
    background: linear-gradient(135deg, #0d47a1, #1565c0);
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
    white-space: nowrap;
}

.btn-generate:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(13, 71, 161, 0.4);
}

.table-wrap {
    background: #071828;
    border-radius: 12px;
    overflow: auto;
    border: 1px solid #0f2840;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid #0f2840;
}

th {
    background: #05101a;
    color: #4fc3f7;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

td {
    word-break: break-all;
}

tr:hover td {
    background: rgba(79, 195, 247, 0.05);
}

.key-cell {
    display: flex;
    align-items: center;
    gap: 8px;
}

.key-cell code {
    background: #05101a;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    color: #4fc3f7;
    font-family: 'Courier New', monospace;
}

.btn-copy {
    background: rgba(79, 195, 247, 0.1);
    color: #4fc3f7;
    border: 1px solid rgba(79, 195, 247, 0.2);
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
    flex-shrink: 0;
}

.btn-copy:hover {
    background: rgba(79, 195, 247, 0.2);
    border-color: #4fc3f7;
    transform: scale(1.05);
}

.btn-copy.copied {
    background: rgba(46, 204, 113, 0.2);
    color: #2ecc71;
    border-color: #2ecc71;
}

.status {
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
    text-transform: uppercase;
}

.status.active {
    background: rgba(46, 204, 113, 0.2);
    color: #2ecc71;
}

.status.used {
    background: rgba(241, 196, 15, 0.2);
    color: #f1c40f;
}

.status.expired {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
}

.actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.actions button {
    padding: 5px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
}

.actions .btn-edit {
    background: rgba(79, 195, 247, 0.15);
    color: #4fc3f7;
}

.actions .btn-edit:hover {
    background: rgba(79, 195, 247, 0.3);
}

.actions .btn-delete {
    background: rgba(231, 76, 60, 0.15);
    color: #e74c3c;
}

.actions .btn-delete:hover {
    background: rgba(231, 76, 60, 0.3);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #071828;
    padding: 35px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    border: 1px solid #0f2840;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h2 {
    margin-bottom: 25px;
    color: #4fc3f7;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: #5a7a9a;
    font-size: 13px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #0f2840;
    border-radius: 6px;
    background: #05101a;
    color: #b8d0e0;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #4fc3f7;
}

.form-group select option {
    background: #05101a;
}

.buttons {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.buttons button {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
    transition: all 0.3s;
}

.btn-save {
    background: linear-gradient(135deg, #0d47a1, #1565c0);
    color: #fff;
}

.btn-save:hover {
    transform: scale(1.02);
}

.btn-cancel {
    background: #0f2840;
    color: #b8d0e0;
}

.btn-cancel:hover {
    background: #1a3a5a;
}

.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #0d47a1;
    color: #fff;
    padding: 16px 28px;
    border-radius: 10px;
    display: none;
    z-index: 2000;
    font-weight: 500;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6);
    animation: slideUp 0.3s ease;
}

.toast.error {
    background: #c62828;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.game-badge {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 12px;
    font-size: 12px;
    background: rgba(79, 195, 247, 0.1);
    border: 1px solid rgba(79, 195, 247, 0.2);
    color: #4fc3f7;
}

@media (max-width: 768px) {
    .controls {
        flex-direction: column;
    }
    .control-group {
        min-width: 100%;
    }
    .stats {
        grid-template-columns: 1fr 1fr;
    }
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    .modal-content {
        padding: 20px;
    }
    table {
        font-size: 12px;
    }
    th, td {
        padding: 10px 12px;
    }
    .key-cell {
        flex-wrap: wrap;
    }
}