body {
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #1a1a1a;
    font-family: Arial, sans-serif;
}

.container {
    background: #2d2d2d;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    min-width: 320px;
}

.title {
    color: white;
    text-align: center;
    margin-bottom: 20px;
    font-size: 24px;
}

input {
    padding: 12px;
    width: 100%;
    border: 1px solid #444;
    border-radius: 6px;
    font-size: 16px;
    outline: none;
    background: #1a1a1a;
    color: white;
    box-sizing: border-box;
}

input:focus {
    border-color: #2196f3;
}

button {
    margin-top: 20px;
    width: 100%;
    padding: 12px;
    background: #2196f3;
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background: #1976d2;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(33, 150, 243, 0.3);
}

button:active {
    transform: translateY(0);
}

::placeholder {
    color: #888;
}

.result-container {
    margin-top: 20px;
}

.sms-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    color: white;
}

.sms-table th,
.sms-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #444;
}

.sms-table th {
    background-color: #1a1a1a;
    color: #2196f3;
}

.sms-table tr:hover {
    background-color: #363636;
}

.error {
    color: #ff5252;
    text-align: center;
    padding: 10px;
    background-color: rgba(255, 82, 82, 0.1);
    border-radius: 6px;
}

.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #2196f3;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}