.prc-calculator {
    --prc-bg: #000000;
    --prc-card: #080808;
    --prc-text: #ffffff;
    --prc-muted: #d7d7d7;
    --prc-accent: #aa001a;
    --prc-glow: #ff1536;
    --prc-border: rgba(255, 30, 58, 0.55);
    --prc-soft-border: rgba(255, 30, 58, 0.18);
    --prc-pill-bg: linear-gradient(180deg, #b30a1f 0%, #7f0012 100%);
    --prc-panel-bg: #050505;
    --prc-result-bg: #090909;

    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 28px 22px 30px;
    background: var(--prc-bg);
    color: var(--prc-text);
    box-sizing: border-box;
    font-family: inherit;
}

.prc-calculator *,
.prc-calculator *::before,
.prc-calculator *::after {
    box-sizing: border-box;
}

.prc-header {
    max-width: 900px;
    margin: 0 auto 26px;
    text-align: center;
}

.prc-kicker {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 8px 14px;
    border: 1px solid var(--prc-border);
    border-radius: 999px;
    background: rgba(255, 10, 44, 0.08);
    color: var(--prc-text);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    box-shadow: 0 0 24px rgba(255, 15, 51, 0.14);
}

.prc-header h2,
.prc-header p,
.prc-result-card p,
.prc-disclaimer,
.prc-card-content h3 {
    margin-top: 0;
}

.prc-header h2 {
    margin-bottom: 10px;
    color: var(--prc-text);
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.1;
}

.prc-header p {
    margin-bottom: 0;
    color: var(--prc-muted);
    font-size: 15px;
    line-height: 1.7;
}

.prc-rows {
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.prc-row {
    display: grid;
    grid-template-columns: minmax(360px, 1fr) minmax(340px, 420px);
    gap: 26px;
    align-items: center;
}

.prc-left-stage,
.prc-right-card {
    min-width: 0;
}

.prc-syringe-stage {
    display: block;
    cursor: pointer;
}

.prc-syringe-stage input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.prc-syringe-stage-ui {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 122px;
    padding: 18px 18px 18px 98px;
    border-radius: 999px;
    background: var(--prc-panel-bg);
    border: 1px solid transparent;
    box-shadow:
        inset 0 0 0 1px rgba(255, 12, 45, 0.08),
        0 0 34px rgba(255, 16, 52, 0.14);
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.prc-syringe-stage:hover .prc-syringe-stage-ui {
    transform: translateY(-2px);
    box-shadow:
        inset 0 0 0 1px rgba(255, 12, 45, 0.14),
        0 0 42px rgba(255, 16, 52, 0.18);
}

.prc-syringe-stage input:checked + .prc-syringe-stage-ui {
    border-color: var(--prc-border);
    box-shadow:
        inset 0 0 0 1px rgba(255, 12, 45, 0.22),
        0 0 36px rgba(255, 15, 51, 0.22),
        0 0 12px rgba(255, 15, 51, 0.18);
}

.prc-syringe-stage input:focus-visible + .prc-syringe-stage-ui,
.prc-option input:focus-visible + span,
.prc-input-wrap input:focus-visible {
    outline: 2px solid rgba(255, 40, 71, 0.65);
    outline-offset: 2px;
}

.prc-size-pill {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    display: inline-grid;
    width: 92px;
    height: 92px;
    place-items: center;
    border-radius: 50%;
    background: var(--prc-pill-bg);
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    text-transform: lowercase;
    box-shadow:
        0 0 18px rgba(255, 11, 48, 0.35),
        0 0 40px rgba(255, 11, 48, 0.16);
}

.prc-size-pill::first-letter {
    text-transform: lowercase;
}

.prc-syringe-wrap {
    display: flex;
    align-items: center;
    width: 100%;
    min-width: 0;
}

.prc-syringe-svg {
    display: block;
    width: 100%;
    height: auto;
}

.prc-syringe-image,
.prc-card-image {
    display: block;
    width: 100%;
    height: auto;
}

.prc-syringe-image {
    max-height: 78px;
    object-fit: contain;
}

.prc-card-image {
    width: 100px;
    max-height: 188px;
    object-fit: contain;
}

.prc-card-shell {
    display: grid;
    grid-template-columns: 120px 1px minmax(0, 1fr);
    gap: 18px;
    align-items: center;
    min-height: 242px;
    padding: 20px 20px 18px;
    border: 1px solid var(--prc-border);
    border-radius: 26px;
    background: var(--prc-card);
    box-shadow:
        inset 0 0 0 1px rgba(255, 16, 52, 0.06),
        0 0 24px rgba(255, 16, 52, 0.09);
}

.prc-vial-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.prc-vial-svg {
    display: block;
    width: 100px;
    height: auto;
}

.prc-divider {
    width: 1px;
    align-self: stretch;
    background: linear-gradient(180deg, transparent 0%, rgba(255, 15, 51, 0.7) 12%, rgba(255, 15, 51, 0.7) 88%, transparent 100%);
}

.prc-card-content h3 {
    margin-bottom: 16px;
    color: var(--prc-text);
    font-size: clamp(20px, 2vw, 30px);
    line-height: 1.2;
}

.prc-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 12px;
}

.prc-option {
    position: relative;
    cursor: pointer;
}

.prc-option input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.prc-option > span {
    display: grid;
    min-height: 34px;
    place-items: center;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid transparent;
    background: linear-gradient(180deg, #8f0617 0%, #5f000c 100%);
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.prc-option:hover > span {
    transform: translateY(-1px);
    box-shadow: 0 0 18px rgba(255, 15, 51, 0.16);
}

.prc-option input:checked + span {
    background: #fff;
    color: #111;
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.14);
}

.prc-custom-field {
    margin-top: 14px;
}

.prc-custom-field[hidden] {
    display: none !important;
}

.prc-custom-field label {
    display: block;
    margin-bottom: 8px;
    color: var(--prc-muted);
    font-size: 13px;
    font-weight: 600;
}

.prc-input-wrap {
    display: flex;
    align-items: stretch;
    max-width: 240px;
}

.prc-input-wrap input {
    width: 100%;
    min-width: 0;
    height: 42px;
    padding: 0 12px;
    border: 1px solid rgba(255, 20, 52, 0.4);
    border-right: 0;
    border-radius: 12px 0 0 12px;
    background: #0f0f0f;
    color: var(--prc-text);
    font: inherit;
    outline: none;
}

.prc-input-wrap > span {
    display: grid;
    min-width: 56px;
    place-items: center;
    padding: 0 10px;
    border: 1px solid rgba(255, 20, 52, 0.4);
    border-radius: 0 12px 12px 0;
    background: #1a1a1a;
    color: var(--prc-muted);
    font-size: 13px;
    font-weight: 700;
}

.prc-result-card {
    margin-top: 24px;
    padding: 22px 24px;
    border: 1px solid var(--prc-border);
    border-radius: 22px;
    background: var(--prc-result-bg);
    box-shadow: 0 0 24px rgba(255, 14, 51, 0.09);
}

.prc-result-copy {
    min-width: 0;
}

.prc-result-label {
    display: inline-block;
    margin-bottom: 8px;
    color: #ff536d;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.prc-result-text {
    margin-bottom: 8px;
    color: var(--prc-text);
    font-size: clamp(20px, 2.3vw, 28px);
    font-weight: 800;
    line-height: 1.35;
}

.prc-result-meta {
    margin-bottom: 0;
    color: var(--prc-muted);
    font-size: 14px;
}

.prc-result-warning {
    margin: 12px 0 0;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 124, 15, 0.12);
    border: 1px solid rgba(255, 124, 15, 0.2);
    color: #ffcb8b;
    font-size: 13px;
    font-weight: 700;
}

.prc-calculator[data-state="error"] .prc-result-card {
    border-color: rgba(255, 105, 105, 0.5);
}

.prc-calculator[data-state="error"] .prc-result-label,
.prc-calculator[data-state="error"] .prc-result-text,
.prc-calculator[data-state="error"] .prc-result-meta {
    color: #ffb2b2;
}

.prc-disclaimer {
    margin: 14px 0 0;
    color: #b8b8b8;
    font-size: 12px;
    line-height: 1.7;
    text-align: center;
}

@media (max-width: 1024px) {
    .prc-row {
        grid-template-columns: 1fr;
    }

    .prc-card-shell {
        grid-template-columns: 110px 1px minmax(0, 1fr);
    }
}

@media (max-width: 767px) {
    .prc-calculator {
        padding: 18px 12px 22px;
    }

    .prc-rows {
        gap: 18px;
    }

    .prc-row {
        gap: 16px;
    }

    .prc-syringe-stage-ui {
        min-height: 104px;
        padding: 14px 14px 14px 82px;
    }

    .prc-size-pill {
        width: 74px;
        height: 74px;
        font-size: 18px;
    }

    .prc-card-shell {
        grid-template-columns: 1fr;
        gap: 14px;
        min-height: 0;
    }

    .prc-vial-visual {
        justify-content: flex-start;
    }

    .prc-vial-svg {
        width: 84px;
    }

    .prc-divider {
        display: none;
    }

    .prc-card-content h3 {
        margin-bottom: 14px;
        font-size: 24px;
    }
}

@media (max-width: 420px) {
    .prc-options {
        gap: 8px;
    }

    .prc-option > span {
        min-height: 32px;
        padding: 7px 8px;
        font-size: 13px;
    }

    .prc-result-card {
        padding: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .prc-syringe-stage-ui,
    .prc-option > span {
        transition: none;
    }
}