* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;

    font-family:
        Arial,
        "Tahoma",
        sans-serif;

    background: #f3f4f6;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #111827;
}

.container {
    width: 100%;
    max-width: 450px;

    padding: 20px;
}

.card {
    background: #ffffff;

    border-radius: 18px;

    padding: 35px 30px;

    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.08);
}

h1 {
    margin: 0 0 10px;

    text-align: center;

    font-size: 28px;
}

.description {
    margin: 0 0 30px;

    text-align: center;

    color: #6b7280;

    font-size: 15px;
}

label {
    display: block;

    margin-bottom: 8px;

    font-weight: 600;
}

input {
    width: 100%;

    height: 52px;

    padding: 0 15px;

    border: 1px solid #d1d5db;

    border-radius: 10px;

    font-size: 16px;

    outline: none;

    transition: 0.2s;
}

input:focus {
    border-color: #2563eb;

    box-shadow:
        0 0 0 3px rgba(37, 99, 235, 0.1);
}

button {
    width: 100%;

    height: 52px;

    margin-top: 20px;

    border: 0;

    border-radius: 10px;

    background: #2563eb;

    color: white;

    font-size: 16px;

    font-weight: bold;

    cursor: pointer;

    transition: 0.2s;
}

button:hover {
    background: #1d4ed8;
}

button:disabled {
    opacity: 0.6;

    cursor: not-allowed;
}

.error {
    min-height: 20px;

    margin: 8px 0 0;

    color: #dc2626;

    font-size: 14px;
}

.success {
    text-align: center;
}

.success-icon {
    width: 70px;
    height: 70px;

    margin: 0 auto 20px;

    border-radius: 50%;

    background: #16a34a;

    color: white;

    display: flex;

    align-items: center;

    justify-content: center;

    font-size: 40px;
}

@media (max-width: 480px) {

    .container {
        padding: 15px;
    }

    .card {
        padding: 30px 20px;
    }

    h1 {
        font-size: 24px;
    }
}