.stage1 {
    min-height: var(--viewport-height, 100vh);

    display: flex;
    align-items: center;

    padding: 8rem 0 4rem;

    background: var(--color-black);
}

.stage1-container {
    display: flex;
    align-items: center;
    justify-content: center;

    min-height: calc(var(--viewport-height, 100vh) - 12rem);
}

.stage1-content {
    width: min(100%, 58rem);

    display: flex;
    align-items: center;
    flex-direction: column;

    text-align: center;
}

.stage1-title {
    max-width: 56rem;

    color: var(--color-white);

    font-size: clamp(2.25rem, 5.5vw, 5rem);
    font-weight: 750;

    line-height: 1.05;
    letter-spacing: -0.12rem;
}

.stage1-price {
    margin-top: 1.25rem;

    color: var(--color-white);

    font-size: clamp(1.25rem, 2vw, 1.625rem);
    font-weight: 500;

    line-height: 1.3;
}

.stage1-description {
    max-width: 42rem;

    margin-top: 1rem;

    color: var(--color-text-secondary);

    font-size: clamp(1rem, 1.5vw, 1.25rem);
    font-weight: 400;

    line-height: 1.6;
}

.stage1-form {
    width: min(100%, 46rem);

    margin-top: 2rem;
}

.stage1-label {
    position: absolute;

    width: 0.0625rem;
    height: 0.0625rem;

    overflow: hidden;

    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

.stage1-form-row {
    display: grid;
    grid-template-columns: 1fr auto;

    width: 100%;

    border-radius: 0.25rem;

    overflow: hidden;
}

.stage1-input {
    width: 100%;
    height: 4rem;

    border: 0.0625rem solid #808080;
    border-right: 0;

    padding: 0 1.25rem;

    background: rgba(22, 22, 22, 0.9);
    color: var(--color-white);

    font-size: 1rem;
    font-weight: 400;

    outline: none;
}

.stage1-input::placeholder {
    color: #B3B3B3;
}

.stage1-input:focus {
    border-color: var(--color-white);
}

.stage1-button {
    height: 4rem;

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

    padding: 0 2rem;

    background: var(--color-accent);
    color: var(--color-white);

    font-size: 1.25rem;
    font-weight: 600;

    line-height: 1;
    white-space: nowrap;

    transition:
        background-color 300ms ease,
        color 300ms ease;
}

.stage1-button:hover {
    background: var(--color-white);
    color: var(--color-black);
}

@media (max-width: 1024px) {
    .stage1 {
        padding: 7rem 0 4rem;
    }

    .stage1-container {
        min-height: calc(var(--viewport-height, 100vh) - 11rem);
    }

    .stage1-title {
        letter-spacing: -0.09rem;
    }
}

@media (max-width: 768px) {
    .stage1 {
        padding: 6rem 0 3rem;
    }

    .stage1-container {
        min-height: calc(var(--viewport-height, 100vh) - 9rem);
    }

    .stage1-title {
        letter-spacing: -0.06rem;
    }

    .stage1-form {
        margin-top: 1.5rem;
    }

    .stage1-form-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;

        overflow: visible;
    }

    .stage1-input {
        height: 3.5rem;

        border: 0.0625rem solid #808080;
        border-radius: 0.25rem;

        text-align: center;
    }

    .stage1-button {
        width: 100%;
        height: 3.5rem;

        border-radius: 0.25rem;

        font-size: 1.125rem;
    }
}

@media (max-width: 375px) {
    .stage1-title {
        font-size: clamp(2rem, 12vw, 2.75rem);
        letter-spacing: -0.04rem;
    }

    .stage1-description {
        font-size: 0.9375rem;
    }

    .stage1-input,
    .stage1-button {
        height: 3.25rem;
    }
}

@media (max-width: 280px) {
    .stage1 {
        display: none;
    }
}

@media (min-width: 2560px) {
    .stage1-content {
        width: min(100%, 64rem);
    }

    .stage1-title {
        max-width: 64rem;
    }

    .stage1-form {
        width: min(100%, 50rem);
    }
}

@media (min-width: 3840px) {
    .stage1-content {
        width: min(100%, 72rem);
    }

    .stage1-title {
        max-width: 72rem;
    }

    .stage1-form {
        width: min(100%, 56rem);
    }

    .stage1-input,
    .stage1-button {
        height: 4.5rem;
    }

    .stage1-button {
        padding: 0 2.25rem;
    }
}

@media (min-width: 7680px) {
    .stage1-content {
        width: min(100%, 84rem);
    }

    .stage1-title {
        max-width: 84rem;
    }

    .stage1-form {
        width: min(100%, 64rem);
    }

    .stage1-input,
    .stage1-button {
        height: 5rem;
    }

    .stage1-button {
        padding: 0 2.75rem;
    }
}