.gc-pay-shell {
    width: 100%;
    box-sizing: border-box;
    padding: 28px;
    color: #f4fbfb;
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

.gc-pay-shell *,
.gc-pay-shell *::before,
.gc-pay-shell *::after {
    box-sizing: border-box;
}

.gc-pay-card {
    width: min(100%, 620px);
    margin: 0 auto;
    padding: 30px;
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 28px;
    background:
        radial-gradient(
            circle at top right,
            rgba(45,212,191,.11),
            transparent 34%
        ),
        linear-gradient(
            145deg,
            rgba(13,30,34,.98),
            rgba(7,18,22,.98)
        );
    box-shadow:
        0 28px 80px rgba(0,0,0,.32);
}

.gc-pay-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 28px;
}

.gc-pay-logo {
    display: flex;
    width: 52px;
    height: 52px;
    flex: 0 0 52px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(45,212,191,.25);
    border-radius: 17px;
    background: rgba(45,212,191,.11);
    color: #7de4dc;
    font-size: 23px;
    font-weight: 900;
}

.gc-pay-eyebrow {
    margin-bottom: 3px;
    color: #69cfc7;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .18em;
}

.gc-pay-brand h1 {
    margin: 0;
    color: #fff;
    font-size: 25px;
    line-height: 1.2;
}

.gc-pay-brand p {
    margin: 5px 0 0;
    color: #84989c;
    font-size: 13px;
}

.gc-pay-form {
    display: grid;
    gap: 19px;
}

.gc-pay-field label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    color: #d8e4e5;
    font-size: 12px;
    font-weight: 750;
}

.gc-pay-field label small {
    color: #65797d;
    font-size: 10px;
    font-weight: 600;
}

.gc-pay-field input {
    width: 100%;
    height: 50px;
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 14px;
    outline: none;
    background: rgba(0,0,0,.19);
    color: #fff;
    padding: 0 15px;
    font-size: 15px;
    transition: .18s ease;
}

.gc-pay-field input:focus {
    border-color: rgba(45,212,191,.42);
    box-shadow:
        0 0 0 3px rgba(45,212,191,.07);
}

.gc-pay-field input[readonly] {
    color: #9db1b4;
    cursor: default;
}

.gc-pay-help {
    display: block;
    margin-top: 6px;
    color: #607478;
    font-size: 10px;
}

.gc-pay-money-input {
    position: relative;
}

.gc-pay-money-input > span {
    position: absolute;
    top: 50%;
    left: 16px;
    z-index: 2;
    transform: translateY(-50%);
    color: #63d7ce;
    font-size: 18px;
    font-weight: 800;
}

.gc-pay-money-input input {
    padding-left: 37px;
    font-size: 20px;
    font-weight: 800;
}

.gc-pay-summary {
    margin-top: 4px;
    padding: 20px;
    border: 1px solid rgba(45,212,191,.11);
    border-radius: 18px;
    background: rgba(45,212,191,.035);
}

.gc-pay-summary-title {
    margin-bottom: 15px;
    color: #6cd7cf;
    font-size: 10px;
    font-weight: 850;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.gc-pay-summary-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 6px 0;
    color: #8da1a4;
    font-size: 13px;
}

.gc-pay-summary-row strong {
    color: #e7f1f2;
    font-size: 14px;
}

.gc-pay-divider {
    height: 1px;
    margin: 12px 0;
    background: rgba(255,255,255,.07);
}

.gc-pay-total span {
    color: #d9e7e8;
    font-weight: 800;
}

.gc-pay-total strong {
    color: #73e0d7;
    font-size: 23px;
}

.gc-pay-button {
    width: 100%;
    min-height: 54px;
    border: 1px solid rgba(94,234,212,.3);
    border-radius: 15px;
    cursor: pointer;
    background:
        linear-gradient(
            135deg,
            #2bb9ad,
            #218f8c
        );
    color: #031313;
    padding: 13px 18px;
    font-size: 14px;
    font-weight: 900;
    transition:
        transform .16s ease,
        filter .16s ease;
}

.gc-pay-button:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.gc-pay-security {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    color: #62777a;
    font-size: 10px;
}

.gc-pay-error {
    margin-bottom: 20px;
    border: 1px solid rgba(248,113,113,.2);
    border-radius: 13px;
    background: rgba(248,113,113,.08);
    color: #fca5a5;
    padding: 12px 14px;
    font-size: 12px;
}

@media (max-width: 640px) {
    .gc-pay-shell {
        padding: 14px;
    }

    .gc-pay-card {
        padding: 22px 18px;
        border-radius: 22px;
    }

    .gc-pay-brand {
        align-items: flex-start;
    }
}