.nrtkd-flip{perspective:1000px;min-height:220px}.nrtkd-flip__inner{position:relative;width:100%;height:100%;min-height:220px;transform-style:preserve-3d;transition:transform .6s}.nrtkd-flip:hover .nrtkd-flip__inner,.nrtkd-flip:focus-within .nrtkd-flip__inner{transform:rotateY(180deg)}.nrtkd-flip__face{position:absolute;inset:0;backface-visibility:hidden;border-radius:1rem;overflow:hidden;border:1px solid var(--ink-200);background:#fff}.nrtkd-flip__face img{width:100%;height:100%;object-fit:cover}.nrtkd-flip__face figcaption{position:absolute;left:0;right:0;bottom:0;padding:.75rem 1rem;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;font-family:var(--font-display);letter-spacing:.15em}.nrtkd-flip__back{transform:rotateY(180deg);display:flex;align-items:center;padding:1.25rem;background:var(--ink-950);color:#fff;font-size:1rem;line-height:1.55}.nrtkd-class-grid{display:grid;gap:1rem;margin-top:2rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));align-items:stretch}.nrtkd-class{display:flex;flex-direction:column;height:100%}.nrtkd-class h3{margin:.25rem 0;font-family:var(--font-display);font-size:1.5rem}.nrtkd-class p{margin:.5rem 0 0;color:var(--ink-600);font-size:1rem}.nrtkd-class .time{margin-top:auto;font-weight:800}.nrtkd-class .btn-primary{margin-top:1rem}.nrtkd-cal{border:2px solid var(--color-korean-red);border-radius:.9rem;overflow:hidden;background:#fff}.nrtkd-cal__head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.65rem .75rem;background:var(--color-korean-blue-soft);border-bottom:2px solid var(--color-korean-red)}.nrtkd-cal__head button{width:1.75rem;height:1.75rem;border-radius:9999px;border:2px solid var(--ink-300);background:transparent;cursor:pointer}.nrtkd-cal__head button:disabled{opacity:.3;cursor:not-allowed}.nrtkd-cal__grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.35rem;padding:.75rem}.nrtkd-cal__dow{text-align:center;font-size:.65rem;letter-spacing:.2em;font-weight:700}.nrtkd-cal__day{height:2.25rem;border-radius:.5rem;border:2px solid var(--ink-200);background:#fff;cursor:pointer;font-size:.9rem}.nrtkd-cal__day:disabled{border-color:transparent;background:var(--paper-50);color:var(--ink-300);cursor:not-allowed}.nrtkd-cal__day.is-selected{border-color:var(--color-korean-red);background:var(--color-korean-blue-soft)}.nrtkd-cal__day.is-today{border-color:var(--color-korean-red)}.nrtkd-cal__foot{border-top:1px solid var(--ink-100);background:color-mix(in srgb,var(--color-korean-blue-soft) 60%,#fff);padding:.65rem .75rem;font-size:.65rem;letter-spacing:.25em;text-transform:uppercase;color:var(--ink-600)}