:root {
    --gsc-navy: #061a32;
    --gsc-navy-2: #0a2a4e;
    --gsc-gold: #dcb251;
    --gsc-gold-dark: #bd8e29;
    --gsc-bg: #f5f7fa;
    --gsc-border: #e2e7ee;
    --gsc-text: #0b1f36;
    --gsc-muted: #68778a;
    --gsc-white: #ffffff;
    --gsc-danger: #b42318;
    --gsc-success: #247a48;
}

.gsc-calculator,
.gsc-calculator * {
    box-sizing: border-box;
}

.gsc-calculator {
    width: 100%;
    margin: 24px auto;
    color: var(--gsc-text);
    direction: rtl;
    font-family: inherit;
    line-height: 1.6;
}

.gsc-shell {
    max-width: 1240px;
    margin: 0 auto;
    padding: 26px;
    overflow: hidden;
    border: 1px solid rgba(6, 26, 50, 0.08);
    border-radius: 28px;
    background:
        radial-gradient(circle at 7% 0%, rgba(220, 178, 81, 0.16), transparent 25%),
        linear-gradient(180deg, #fff 0%, var(--gsc-bg) 100%);
    box-shadow: 0 22px 65px rgba(6, 26, 50, 0.10);
}

.gsc-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 10px 0 24px;
    text-align: center;
}

.gsc-hero h2 {
    margin: 0;
    color: var(--gsc-navy);
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.gsc-hero p {
    margin: 4px 0 0;
    color: var(--gsc-muted);
    font-size: 16px;
}

.gsc-hero-icon {
    display: grid;
    width: 64px;
    height: 64px;
    flex: 0 0 64px;
    place-items: center;
    border: 1px solid rgba(220, 178, 81, 0.65);
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 10px 24px rgba(6, 26, 50, 0.10);
}

.gsc-hero-icon svg {
    width: 30px;
    height: 30px;
    fill: none;
    color: var(--gsc-gold-dark);
    stroke: currentColor;
}

.gsc-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 18px;
    padding: 14px 18px;
    border: 1px solid var(--gsc-border);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 8px 24px rgba(6, 26, 50, 0.06);
}

.gsc-step {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    color: var(--gsc-muted);
}

.gsc-step:not(:last-child)::after {
    position: absolute;
    left: -7px;
    width: 1px;
    height: 28px;
    background: var(--gsc-border);
    content: '';
}

.gsc-step span {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    place-items: center;
    border: 1px solid var(--gsc-border);
    border-radius: 50%;
    background: #f5f7fa;
    font-weight: 800;
}

.gsc-step strong {
    overflow: hidden;
    font-size: 14px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gsc-step.is-active {
    color: var(--gsc-gold-dark);
}

.gsc-step.is-active span {
    border-color: var(--gsc-gold);
    color: #fff;
    background: linear-gradient(135deg, var(--gsc-gold), var(--gsc-gold-dark));
    box-shadow: 0 7px 16px rgba(220, 178, 81, 0.30);
}

.gsc-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 18px;
    align-items: start;
}

.gsc-form {
    padding: 8px 24px 24px;
    border: 1px solid var(--gsc-border);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 12px 32px rgba(6, 26, 50, 0.06);
}

.gsc-section {
    padding: 22px 0;
    border-bottom: 1px solid var(--gsc-border);
}

.gsc-section:last-of-type {
    border-bottom: 0;
}

.gsc-section-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.gsc-section-icon {
    display: grid;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    place-items: center;
    border-radius: 12px;
    color: var(--gsc-gold-dark);
    background: rgba(220, 178, 81, 0.12);
    font-size: 22px;
    font-weight: 800;
}

.gsc-section-heading h3,
.gsc-section-heading p {
    margin: 0;
}

.gsc-section-heading h3 {
    color: var(--gsc-navy);
    font-size: 18px;
    font-weight: 800;
}

.gsc-section-heading p {
    color: var(--gsc-muted);
    font-size: 13px;
}

.gsc-grid {
    display: grid;
    gap: 14px;
}

.gsc-grid + .gsc-grid {
    margin-top: 14px;
}

.gsc-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gsc-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gsc-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.gsc-field > span,
.gsc-services legend,
.gsc-extras legend,
.gsc-quantity-label {
    color: var(--gsc-text);
    font-size: 13px;
    font-weight: 700;
}

.gsc-field input,
.gsc-field select,
.gsc-quantity input {
    width: 100%;
    height: 48px;
    margin: 0;
    border: 1px solid var(--gsc-border);
    border-radius: 11px;
    outline: 0;
    color: var(--gsc-text);
    background: #fff;
    box-shadow: none;
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.gsc-field input,
.gsc-field select {
    padding: 0 14px;
}

.gsc-field input:focus,
.gsc-field select:focus {
    border-color: var(--gsc-gold);
    box-shadow: 0 0 0 3px rgba(220, 178, 81, 0.16);
}

.gsc-quantity-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 13px;
    background: #f7f9fb;
}

.gsc-quantity {
    display: grid;
    width: 190px;
    grid-template-columns: 46px 1fr 46px;
    overflow: hidden;
    border: 1px solid var(--gsc-border);
    border-radius: 10px;
    background: #fff;
}

.gsc-quantity button {
    height: 46px;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    color: var(--gsc-navy);
    background: #f6f8fa;
    font-size: 21px;
    cursor: pointer;
}

.gsc-quantity button:hover {
    color: #fff;
    background: var(--gsc-navy);
}

.gsc-quantity input {
    height: 46px;
    padding: 0;
    border: 0;
    border-right: 1px solid var(--gsc-border);
    border-left: 1px solid var(--gsc-border);
    border-radius: 0;
    text-align: center;
    -moz-appearance: textfield;
}

.gsc-service-extra-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 20px;
}

.gsc-services,
.gsc-extras {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.gsc-services legend,
.gsc-extras legend {
    margin-bottom: 10px;
}

.gsc-service-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.gsc-service-card {
    position: relative;
    display: flex;
    min-height: 130px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 16px 12px;
    overflow: hidden;
    border: 1px solid var(--gsc-border);
    border-radius: 15px;
    background: #fff;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.gsc-service-card:hover {
    transform: translateY(-2px);
    border-color: rgba(220, 178, 81, 0.75);
    box-shadow: 0 10px 24px rgba(6, 26, 50, 0.08);
}

.gsc-service-card input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.gsc-service-card:has(input:checked) {
    border-color: var(--gsc-gold);
    background: linear-gradient(180deg, rgba(220, 178, 81, 0.11), #fff);
    box-shadow: 0 10px 24px rgba(220, 178, 81, 0.15);
}

.gsc-service-check {
    position: absolute;
    top: 10px;
    left: 10px;
    display: none;
    width: 22px;
    height: 22px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
    background: var(--gsc-gold-dark);
    font-size: 12px;
}

.gsc-service-card:has(input:checked) .gsc-service-check {
    display: flex;
}

.gsc-service-symbol {
    margin-bottom: 5px;
    font-size: 27px;
}

.gsc-service-card strong {
    color: var(--gsc-navy);
    font-size: 16px;
}

.gsc-service-card small {
    color: var(--gsc-muted);
    font-size: 12px;
}

.gsc-extra-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.gsc-extra-item {
    display: flex;
    min-height: 52px;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--gsc-border);
    border-radius: 11px;
    color: var(--gsc-text);
    background: #fff;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.gsc-extra-item input {
    position: absolute;
    opacity: 0;
}

.gsc-checkbox {
    position: relative;
    width: 21px;
    height: 21px;
    flex: 0 0 21px;
    border: 1px solid #b9c2ce;
    border-radius: 5px;
    background: #fff;
}

.gsc-extra-item input:checked + .gsc-checkbox {
    border-color: var(--gsc-gold-dark);
    background: var(--gsc-gold);
}

.gsc-extra-item input:checked + .gsc-checkbox::after {
    position: absolute;
    top: 1px;
    left: 6px;
    width: 6px;
    height: 12px;
    transform: rotate(45deg);
    border-right: 2px solid #fff;
    border-bottom: 2px solid #fff;
    content: '';
}

.gsc-notice {
    display: none;
    margin: 16px 0 0;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 700;
}

.gsc-notice.is-visible {
    display: block;
}

.gsc-notice.is-error {
    color: var(--gsc-danger);
    background: #fff1ef;
}

.gsc-notice.is-success {
    color: var(--gsc-success);
    background: #edf8f1;
}

.gsc-calculate,
.gsc-order-button {
    width: 100%;
    margin: 18px 0 0;
    border: 0;
    border-radius: 11px;
    color: #fff;
    background: linear-gradient(135deg, var(--gsc-gold), var(--gsc-gold-dark));
    box-shadow: 0 11px 25px rgba(220, 178, 81, 0.27);
    font-family: inherit;
    font-size: 17px;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gsc-calculate {
    height: 56px;
}

.gsc-calculate:hover,
.gsc-order-button:hover {
    transform: translateY(-2px);
    color: #fff;
    box-shadow: 0 15px 30px rgba(220, 178, 81, 0.34);
}


.gsc-disclaimer {
    margin: 10px 0 0;
    color: var(--gsc-muted);
    font-size: 12px;
    text-align: center;
}

.gsc-summary {
    position: sticky;
    top: 24px;
    overflow: hidden;
    padding: 24px;
    border: 1px solid rgba(220, 178, 81, 0.33);
    border-radius: 20px;
    color: #fff;
    background:
        radial-gradient(circle at 0 0, rgba(220, 178, 81, 0.13), transparent 34%),
        linear-gradient(145deg, var(--gsc-navy), var(--gsc-navy-2));
    box-shadow: 0 20px 42px rgba(6, 26, 50, 0.22);
}

.gsc-summary::after {
    position: absolute;
    right: -70px;
    bottom: -90px;
    width: 260px;
    height: 260px;
    border: 1px solid rgba(220, 178, 81, 0.09);
    border-radius: 50%;
    content: '';
}

.gsc-summary-top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.gsc-summary-icon {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border-radius: 12px;
    color: var(--gsc-gold);
    background: rgba(255, 255, 255, 0.08);
    font-size: 22px;
}

.gsc-summary-top p,
.gsc-summary-top span {
    margin: 0;
}

.gsc-summary-top p {
    font-size: 19px;
    font-weight: 800;
}

.gsc-summary-top span {
    color: var(--gsc-gold);
    font-size: 13px;
    font-weight: 700;
}

.gsc-price {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    padding: 12px 0 18px;
    color: var(--gsc-gold);
}

.gsc-price strong {
    font-size: clamp(44px, 6vw, 65px);
    line-height: 1;
}

.gsc-price span {
    font-size: 21px;
    font-weight: 800;
}

.gsc-metrics {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.gsc-metrics > div {
    display: flex;
    min-height: 78px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.035);
    text-align: center;
}

.gsc-metrics span {
    color: #c7d1dd;
    font-size: 12px;
}

.gsc-metrics strong {
    margin-top: 3px;
    color: #fff;
    font-size: 13px;
}

.gsc-metrics b {
    color: var(--gsc-gold);
    font-size: 16px;
}

.gsc-breakdown {
    position: relative;
    z-index: 1;
    margin-top: 14px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 14px;
    background: rgba(0, 0, 0, 0.08);
}

.gsc-breakdown h3 {
    margin: 0 0 10px;
    color: #fff;
    font-size: 15px;
}

.gsc-breakdown-row,
.gsc-breakdown-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 7px 0;
    color: #dce4ed;
    font-size: 12px;
}

.gsc-breakdown-row strong,
.gsc-breakdown-total strong {
    color: #fff;
    white-space: nowrap;
}

.gsc-breakdown-total {
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    color: var(--gsc-gold);
    font-size: 15px;
    font-weight: 800;
}

.gsc-breakdown-total strong {
    color: var(--gsc-gold);
}

.gsc-secure-box {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 14px;
    padding: 13px;
    border-radius: 12px;
    color: var(--gsc-navy);
    background: #fff8e8;
}

.gsc-secure-box > span {
    color: var(--gsc-gold-dark);
    font-size: 25px;
}

.gsc-secure-box strong,
.gsc-secure-box small {
    display: block;
}

.gsc-secure-box strong {
    font-size: 13px;
}

.gsc-secure-box small {
    color: #697386;
    font-size: 11px;
}

.gsc-order-button {
    position: relative;
    z-index: 1;
    height: 52px;
}

.gsc-features {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 18px;
    padding: 18px;
    border: 1px solid var(--gsc-border);
    border-radius: 17px;
    background: rgba(255, 255, 255, 0.92);
}

.gsc-features > div {
    display: grid;
    grid-template-columns: 42px 1fr;
    grid-template-rows: auto auto;
    column-gap: 10px;
    align-items: center;
    min-width: 0;
    padding: 4px 10px;
}

.gsc-features > div:not(:last-child) {
    border-left: 1px solid var(--gsc-border);
}

.gsc-features span {
    display: grid;
    width: 42px;
    height: 42px;
    grid-row: 1 / 3;
    place-items: center;
    border-radius: 12px;
    color: var(--gsc-gold-dark);
    background: rgba(220, 178, 81, 0.12);
    font-size: 20px;
}

.gsc-features strong {
    overflow: hidden;
    color: var(--gsc-navy);
    font-size: 13px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gsc-features small {
    overflow: hidden;
    color: var(--gsc-muted);
    font-size: 11px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@media (max-width: 980px) {
    .gsc-shell {
        padding: 18px;
    }

    .gsc-layout {
        grid-template-columns: 1fr;
    }

    .gsc-summary {
        position: relative;
        top: auto;
        grid-row: 2;
    }

    .gsc-features {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .gsc-features > div:nth-child(2) {
        border-left: 0;
    }
}

@media (max-width: 720px) {
    .gsc-calculator {
        margin: 12px auto;
    }

    .gsc-shell {
        padding: 12px;
        border-radius: 18px;
    }

    .gsc-hero {
        padding-top: 4px;
    }

    .gsc-hero-icon {
        width: 52px;
        height: 52px;
        flex-basis: 52px;
    }

    .gsc-steps {
        grid-template-columns: repeat(4, minmax(70px, 1fr));
        overflow-x: auto;
        padding: 10px;
    }

    .gsc-step {
        justify-content: center;
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }

    .gsc-step::after {
        display: none;
    }

    .gsc-step strong {
        font-size: 11px;
    }

    .gsc-form,
    .gsc-summary {
        padding: 18px;
    }

    .gsc-grid-2,
    .gsc-grid-3,
    .gsc-service-extra-grid,
    .gsc-extra-options {
        grid-template-columns: 1fr;
    }

    .gsc-service-options {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .gsc-quantity-wrap {
        align-items: stretch;
        flex-direction: column;
    }

    .gsc-quantity {
        width: 100%;
    }

    .gsc-features {
        grid-template-columns: 1fr;
    }

    .gsc-features > div {
        border-left: 0 !important;
        border-bottom: 1px solid var(--gsc-border);
        padding: 10px 0;
    }

    .gsc-features > div:last-child {
        border-bottom: 0;
    }
}

@media (max-width: 430px) {
    .gsc-hero {
        align-items: center;
        text-align: right;
    }

    .gsc-hero h2 {
        font-size: 29px;
    }

    .gsc-hero p {
        font-size: 13px;
    }

    .gsc-service-options,
    .gsc-metrics {
        grid-template-columns: 1fr;
    }
}

/* Professional inline SVG icon system (v1.1.0). */
.gsc-svg-icon {
    display: block;
    width: 1em;
    height: 1em;
    flex: 0 0 auto;
    overflow: visible;
    fill: none;
    stroke: currentColor;
}

.gsc-hero-icon svg {
    width: 30px;
    height: 30px;
    fill: none;
    color: var(--gsc-gold-dark);
    stroke: currentColor;
}

.gsc-section-icon svg {
    width: 21px;
    height: 21px;
}

.gsc-quantity button {
    display: grid;
    place-items: center;
}

.gsc-quantity button svg {
    width: 18px;
    height: 18px;
}

.gsc-service-check svg {
    width: 14px;
    height: 14px;
    stroke-width: 2.5;
}

.gsc-service-symbol {
    display: grid;
    width: 44px;
    height: 44px;
    margin-bottom: 8px;
    place-items: center;
    border: 1px solid rgba(220, 178, 81, 0.28);
    border-radius: 13px;
    color: var(--gsc-gold-dark);
    background: rgba(220, 178, 81, 0.09);
    font-size: inherit;
}

.gsc-service-symbol svg {
    width: 25px;
    height: 25px;
}

.gsc-service-card:has(input:checked) .gsc-service-symbol {
    border-color: rgba(220, 178, 81, 0.48);
    color: var(--gsc-gold-dark);
    background: rgba(220, 178, 81, 0.16);
}

.gsc-calculate,
.gsc-order-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.gsc-calculate > svg,
.gsc-order-button > svg {
    width: 21px;
    height: 21px;
}

.gsc-calculate > span,
.gsc-order-button > span {
    margin: 0;
}

.gsc-summary-icon svg {
    width: 22px;
    height: 22px;
}

.gsc-secure-box > span {
    display: grid;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    place-items: center;
    border: 1px solid rgba(189, 142, 41, 0.22);
    border-radius: 11px;
    color: var(--gsc-gold-dark);
    background: rgba(220, 178, 81, 0.10);
    font-size: inherit;
}

.gsc-secure-box > span svg {
    width: 22px;
    height: 22px;
}

.gsc-features span {
    font-size: inherit;
}

.gsc-features span svg {
    width: 22px;
    height: 22px;
}

/* Phase 2: fixed origin and international route summary */
.gsc-readonly-value {
    display: flex;
    min-height: 50px;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border: 1px solid rgba(6, 26, 50, 0.12);
    border-radius: 12px;
    color: var(--gsc-navy);
    background: linear-gradient(135deg, rgba(220, 178, 81, 0.11), rgba(255, 255, 255, 0.95));
}

.gsc-readonly-value svg {
    width: 21px;
    height: 21px;
    color: var(--gsc-gold-dark);
}

.gsc-readonly-value strong {
    font-size: 15px;
    font-weight: 800;
}

.gsc-route-summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    margin: 2px 0 20px;
    padding: 10px 12px;
    border: 1px solid rgba(220, 178, 81, 0.24);
    border-radius: 11px;
    color: rgba(255, 255, 255, 0.78);
    background: rgba(255, 255, 255, 0.055);
    font-size: 13px;
}

.gsc-route-summary b {
    color: #fff;
    font-weight: 800;
}

.gsc-route-summary i {
    color: var(--gsc-gold);
    font-style: normal;
    font-size: 17px;
}

.gsc-calculate:disabled,
.gsc-field select:disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

@media (max-width: 560px) {
    .gsc-route-summary {
        flex-wrap: wrap;
    }
}