.fcs-root{--fcs-accent:#9a8afb;--fcs-accent-text:#fff;--fcs-card-bg:#fff;--fcs-card-border:#9a8afb38;--fcs-text:#1a1027;--fcs-muted:#a09db8;--fcs-ghost-near:#ede9fe;--fcs-ghost-far:#f5f3ff;--fcs-radius:20px;font-family:var(--font-landing), ui-sans-serif, system-ui, -apple-system, sans-serif;display:inline-flex}.fcs-stack{perspective:1600px;width:clamp(220px,30vw,300px);height:clamp(150px,20vw,195px);position:relative}.fcs-deck-card{border-radius:var(--fcs-radius);border:1px solid var(--fcs-card-border);position:absolute;inset:0;overflow:hidden}.fcs-deck-card--back{background:var(--fcs-ghost-far);z-index:0;transform:translate(20px,24px)rotate(6deg)}.fcs-deck-card--mid{background:var(--fcs-ghost-near);z-index:1;transform:translate(10px,12px)rotate(3deg)}.fcs-card{z-index:2;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;padding:0;position:absolute;inset:0}.fcs-card-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.65,0,.35,1);position:relative}.fcs-card-inner.fcs-flipped{transform:rotateY(180deg)}.fcs-face{border-radius:var(--fcs-radius);backface-visibility:hidden;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:20px 28px;display:flex;position:absolute;inset:0}.fcs-face--question{background:var(--fcs-card-bg);border:1px solid var(--fcs-card-border);box-shadow:0 24px 48px -20px #5a46b447}.fcs-face--answer{background:var(--fcs-accent);transform:rotateY(180deg);box-shadow:0 24px 50px -16px #9a8afb8c}.fcs-face-label{letter-spacing:.18em;text-transform:uppercase;font-size:.7rem;font-weight:700}.fcs-face--question .fcs-face-label{color:var(--fcs-accent)}.fcs-face--answer .fcs-face-label{color:#ffffffb3}.fcs-face-text{color:var(--fcs-text);margin:0;font-size:1.15rem;font-weight:700;line-height:1.3}.fcs-face--answer .fcs-face-text{color:var(--fcs-accent-text);font-size:1.3rem}.fcs-face-hint{color:var(--fcs-muted);font-size:.8rem;font-weight:500}