.business-card-proof-viewer {
    --bc-width: 560px;
    --bc-height: 320px;
    --bc-thickness: 18px;
    --bc-edge-color: #ffffff;
    --bc-edge-middle-color: #ffffff;
    --bc-radius: 0px;
    --bc-edge-radius: 0px;
    --bc-rotate-y: 18deg;
    --bc-rotate-x: 0deg;
    --bc-glare-x: 50%;
    --bc-glare-y: 45%;
    --bc-glare-angle: 112deg;
    --bc-stage-height: calc(var(--bc-height) + 90px);
    margin: 0 auto 28px;
    padding: 18px 14px 20px;
    width: 100%;
    max-width: 980px;
    border-radius: 18px;
    background: transparent;
    box-shadow: none;
    color: #162033;
    text-align: center;
}
.business-card-proof-message {
    margin: 0 auto 12px;
    max-width: 760px;
    color: #303848;
    font-size: 15px;
    line-height: 1.45;
}
.business-card-proof-stage {
    height: min(var(--bc-stage-height), calc(100vh - 170px));
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1600px;
    overflow: visible;
    max-height: calc(100vh - 170px);
}
.business-card-proof-scene {
    position: relative;
    width: var(--bc-width);
    height: var(--bc-height);
    transform-style: preserve-3d;
    transform: rotateX(var(--bc-rotate-x)) rotateY(var(--bc-rotate-y));
    transition: transform .18s ease;
    cursor: grab;
}
.business-card-proof-dragging .business-card-proof-scene {
    cursor: grabbing;
    transition: none;
}
.business-card-proof-face,
.business-card-proof-guide,
.business-card-proof-white-side {
    position: absolute;
    inset: 0;
    border-radius: var(--bc-radius);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform-style: preserve-3d;
}
.business-card-proof-face {
    overflow: hidden;
    background: #fff;
    border-radius: var(--bc-radius);
    box-shadow: 0 18px 34px rgba(15,23,42,.16), 0 0 0 1px rgba(15,23,42,.06);
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
}
.business-card-proof-face::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
    background:
        linear-gradient(var(--bc-glare-angle), rgba(255,255,255,0) 0%, rgba(255,255,255,0) 27%, rgba(255,255,255,.66) 39%, rgba(255,255,255,.22) 48%, rgba(255,255,255,0) 66%),
        linear-gradient(18deg, rgba(255,255,255,.13), rgba(255,255,255,0) 58%),
        radial-gradient(circle at var(--bc-glare-x) var(--bc-glare-y), rgba(255,255,255,.36), rgba(255,255,255,0) 32%);
    background-size: 240% 190%, 100% 100%, 150% 150%;
    background-position: var(--bc-glare-x) center, center center, center center;
    mix-blend-mode: normal;
    transform: translateZ(1px);
    transition: opacity .18s ease;
}
.business-card-proof-gloss .business-card-proof-face::after {
    opacity: .56;
}
.business-card-proof-face img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: inherit;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}
.business-card-proof-front {
    transform: rotateY(0deg) translateZ(calc(var(--bc-thickness) / 2));
    -webkit-transform: rotateY(0deg) translateZ(calc(var(--bc-thickness) / 2));
}
.business-card-proof-back {
    transform: rotateY(180deg) translateZ(calc(var(--bc-thickness) / 2));
    -webkit-transform: rotateY(180deg) translateZ(calc(var(--bc-thickness) / 2));
    background: #fff;
}
.business-card-proof-white-side {
    background: linear-gradient(135deg, #fff, #f3f5f7);
    opacity: 1;
}
.business-card-proof-edge {
    position: absolute;
    display: block;
    background:
        linear-gradient(90deg, rgba(0,0,0,.12), rgba(255,255,255,.22), rgba(0,0,0,.16)),
        linear-gradient(90deg, var(--bc-edge-color), var(--bc-edge-middle-color), var(--bc-edge-color));
    box-shadow: inset 0 0 14px rgba(15,23,42,.2), 0 0 0 1px rgba(15,23,42,.08);
    opacity: 1;
    backface-visibility: visible;
    -webkit-backface-visibility: visible;
    transform-style: preserve-3d;
    -webkit-transform-style: preserve-3d;
}
.business-card-proof-edge-top,
.business-card-proof-edge-bottom {
    right: 0;
    bottom: auto;
    height: var(--bc-thickness);
    left: 0;
    top: calc(var(--bc-thickness) / -2);
    transform: rotateX(90deg);
    -webkit-transform: rotateX(90deg);
    transform-origin: center center;
    border-radius: 0;
}
.business-card-proof-edge-bottom {
    top: auto;
    bottom: calc(var(--bc-thickness) / -2);
    transform-origin: center center;
}
.business-card-proof-edge-left,
.business-card-proof-edge-right {
    right: auto;
    width: var(--bc-thickness);
    top: 0;
    bottom: 0;
    left: calc(var(--bc-thickness) / -2);
    transform: rotateY(90deg);
    -webkit-transform: rotateY(90deg);
    transform-origin: center center;
    border-radius: 0;
}
.business-card-proof-edge-right {
    left: auto;
    right: calc(var(--bc-thickness) / -2);
    transform-origin: center center;
}
.business-card-proof-guide {
    pointer-events: none;
    opacity: 0;
    transform: translateZ(calc(var(--bc-thickness) / 2 + 1px));
}
.business-card-proof-viewer.business-card-proof-hold-guides-on.business-card-proof-cutline-on .business-card-proof-cutline,
.business-card-proof-viewer.business-card-proof-hold-guides-on.business-card-proof-safe-zone-on .business-card-proof-safe-zone {
    opacity: 1;
}
.business-card-proof-cutline {
    inset: 8px;
    border: 1px dashed rgba(239,68,68,.85);
}
.business-card-proof-safe-zone {
    inset: 18px;
    border: 1px dashed rgba(37,99,235,.85);
}
.business-card-proof-controls {
    margin: 14px auto 0;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #334155;
    font-size: 13px;
}
.business-card-proof-snap-actions {
    display: flex;
    gap: 12px;
}
.business-card-proof-controls button,
.business-card-proof-check,
.business-card-proof-range-control {
    border: 0;
    border-radius: 999px;
    background: rgba(255,255,255,.96);
    padding: 9px 24px;
    color: #1f2937;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(15,23,42,.09);
}
.business-card-proof-controls button {
    cursor: pointer;
}
.business-card-proof-range-control {
    display: flex;
    align-items: center;
    gap: 8px;
}
.business-card-proof-range-control input {
    width: 130px;
}
.business-card-proof-close-link {
    color: #b91c1c !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0 !important;
    border-radius: 0 !important;
    text-decoration: underline;
}
.business-card-proof-active-source {
    margin-top: 6px;
}
@media (max-width: 700px) {
    .business-card-proof-viewer {
        padding: 14px 8px;
        border-radius: 12px;
    }
    .business-card-proof-stage {
        height: min(calc(var(--bc-height) + var(--bc-thickness) + 54px), calc(100vh - 150px));
        min-height: 0;
    }
}