.box h1 {
    margin: 10px 0;
    text-align: center;
    font-family: sans-serif;
    letter-spacing: -1px;
}

.box form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    margin: 0;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.82);
}

.form-group input {
    width: 100%;
    box-sizing: border-box;

    padding: 14px 16px;

    border: 2px solid rgba(240, 240, 240, 0.12);
    border-radius: 14px;

    background: rgba(255, 255, 255, 0.05);
    color: white;

    font-family: sans-serif;
    font-size: 15px;

    outline: none;

    transition:
        border-color 0.2s ease,
        background 0.2s ease,
        transform 0.15s ease,
        box-shadow 0.2s ease;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.form-group input:hover {
    background: rgba(255, 255, 255, 0.07);
}

.form-group input:focus {
    border-color: rgba(255, 255, 255, 0.25);

    background: rgba(255, 255, 255, 0.08);

    box-shadow:
        0 0 0 4px rgba(255, 255, 255, 0.05),
        0 4px 20px rgba(0, 0, 0, 0.3);

    transform: translateY(-1px);
}

.verification-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.verification-copy {
    margin: 0 0 4px;
    color: rgba(255, 255, 255, 0.72);
    text-align: center;
    line-height: 1.45;
}

.verification-code-input {
    width: 100%;
    box-sizing: border-box;
    padding: 18px;
    border: 2px solid rgba(240, 240, 240, 0.14);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.06);
    color: white;
    font-family: sans-serif;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0;
    text-align: center;
    outline: none;
    transition:
        border-color 0.2s ease,
        background 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.15s ease;
}

.verification-code-input:focus {
    border-color: rgba(76, 175, 80, 0.85);
    background: rgba(255, 255, 255, 0.09);
    box-shadow: 0 0 0 4px rgba(76, 175, 80, 0.12);
    transform: translateY(-1px);
}

button {
    width: 100%;

    padding: 14px 18px;
    margin-top: 8px;

    border: none;
    border-radius: 14px;

    background: white;
    color: #000000;

    font-family: sans-serif;
    font-size: 15px;
    font-weight: 700;

    cursor: pointer;

    transition:
        transform 0.15s ease,
        opacity 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease;
}

.secondary-button {
    background: rgba(255, 255, 255, 0.08);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.14);
}

button:hover {
    transform: translateY(-2px);

    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.12);
}

button:active {
    transform: translateY(0);
    opacity: 0.9;
}

@media (max-width: 520px) {
    #login-container,
    #signup-container {
        padding: 28px 22px;
        border-radius: 20px;
    }

    h1 {
        font-size: 38px;
        font-family: sans-serif;
    }
}