.ip-controls {
    display: flex;
    gap: 15px;
    margin: 25px 0 10px 0;
    justify-content: center;
    flex-wrap: wrap;
}

.ip-input-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
}

.ip-input-group label {
    font-size: 0.85rem;
    font-weight: bold;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 1px;
}

.ip-controls input[type="text"],
.ip-controls select,
.ip-controls input[type="number"] {
    padding: 10px 15px;
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-family: monospace;
    background-color: rgba(0, 0, 0, 0.2);
    color: white;
    outline: none;
    transition: border-color 0.2s;
}

.ip-controls input[type="text"]:focus,
.ip-controls select:focus,
.ip-controls input[type="number"]:focus {
    border-color: var(--primary);
}

.ip-controls input[type="number"] {
    width: 100%;
    max-width: 180px;
}

.ip-error-message {
    color: var(--primary);
    font-size: 0.95rem;
    font-weight: bold;
    min-height: 25px;
    margin-bottom: 15px;
    text-shadow: 1px 1px 0px #000;
}

.ip-output-box {
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.15);
    margin-top: 20px;
}

.ip-bar {
    background: linear-gradient(90deg, var(--secondary), #131619);
    padding: 12px;
    text-align: center;
    font-weight: bold;
    font-family: monospace;
    font-size: 1.05rem;
    transition: color 0.2s;
}

.ip-bar-header {
    border-bottom: 2px solid var(--primary);
    color: var(--accent);
}

.ip-bar-footer {
    border-top: 2px solid var(--primary);
    color: #fff;
}

.subnet-summary-grid {
    padding: 20px;
    border-bottom: 2px solid var(--primary);
    line-height: 1.8;
    text-align: left;
    background: rgba(0, 0, 0, 0.2);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.subnet-summary-item strong {
    color: var(--accent);
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.subnet-summary-item span {
    font-family: monospace;
    font-size: 1.2rem;
    font-weight: bold;
}

.subnet-table-wrapper {
    padding: 15px;
    overflow-x: auto;
}

.subnet-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.subnet-table th,
.subnet-table td {
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 15px;
    font-size: 0.95rem;
}

.subnet-table th {
    background: rgba(255, 255, 255, 0.05);
    color: #ced4da;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.subnet-table tbody tr {
    transition: background 0.2s;
}

.subnet-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}