.voucher {
    width: 100%;
    max-width: 680px;                 /* było ~520px – teraz szerzej */
    margin: 130px auto 130px;
    padding: 0 20px;
    color: #ffffff;
    font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Głowa sekcji */
.voucher__head {
    margin-bottom: 22px;
}

.voucher__title {
    font-size: 16px;                  /* lekko większy tytuł */
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    display: inline-block;
    padding-bottom: 6px;
}

/* akcent pod tytułem */
.voucher__title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 64px;                      /* troszkę dłuższa kreska */
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #b8ff3b, #ffb347);
}

.voucher__subtitle {
    margin-top: 8px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* Form – cienka linia na górze */
.voucher__form {
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Pola */
.voucher__input {
    margin-bottom: 26px;
}

.voucher__input label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.72);
}

.voucher__input input {
    width: 100%;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: transparent;
    padding: 8px 2px;
    font-size: 14px;
    color: #ffffff;
    transition: border-color 0.18s ease, color 0.18s ease;
}

.voucher__input input::placeholder {
    color: #7b7778;
}

.voucher__input input:focus {
    outline: none;
    border-bottom-color: #c3ff3b;
    color: #f5f5f5;
}

/* Błędy */
.alert,
.errors {
    margin-top: -2px;
    margin-bottom: 12px;
    padding: 9px 12px;
    border-radius: 6px;
    background: rgba(255, 85, 60, 0.10);
    border: 1px solid rgba(255, 85, 60, 0.45);
    color: #ffc3b5;
    font-size: 12px;
}

/* Przycisk – teraz na całą szerokość formularza */
.voucher__btn {
    margin-top: 10px;
    border: none;
    padding: 14px 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #ff6a3a, #ffb347);
    color: #ffffff;
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.08em;
    cursor: pointer;
    text-align: center;

    width: 100%;                      /* ważne – pełna szerokość */
    display: block;

    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.7);
    transition: transform 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
}

.voucher__btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.85);
}

.voucher__btn:active {
    transform: translateY(0);
    box-shadow: 0 9px 20px rgba(0, 0, 0, 0.8);
    filter: brightness(0.96);
}

/* Mobile */
@media (max-width: 768px) {
    .voucher {
        margin: 110px auto 90px;
        max-width: 100%;
    }
}