.ui-btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;font-weight:600;border-radius:.5rem;border:none;cursor:pointer;transition:background-color .2s ease,transform .1s ease;min-height:2.5rem;position:relative}.ui-btn:disabled{cursor:not-allowed;opacity:.7}.ui-btn--primary{background:var(--color-primary-cyan);color:var(--color-dark-base)}.ui-btn--primary:hover:not(:disabled){filter:brightness(1.05)}.ui-btn--secondary{background:var(--color-surface);color:white;border:1px solid var(--color-border)}.ui-btn--secondary:hover:not(:disabled){background:#2a2a2b}.ui-btn--danger{background:var(--color-danger);color:white}.ui-btn--danger:hover:not(:disabled){filter:brightness(1.1)}.ui-btn--ghost{background:transparent;color:var(--color-textbase)}.ui-btn--ghost:hover:not(:disabled){background:rgba(0,0,0,.06)}.ui-btn--loading .ui-btn__spinner{position:absolute;width:1rem;height:1rem;border:2px solid;border-top:2px solid transparent;border-radius:50%;animation:ui-btn-spin .6s linear infinite}.ui-btn--loading .ui-btn__label--hidden{visibility:hidden}.ui-btn--success{background:var(--color-success);color:white}@keyframes ui-btn-spin{to{transform:rotate(1turn)}}.ui-card{background:var(--color-primary);border:1px solid var(--color-border);border-radius:.75rem;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}.ui-card--sponsored{border-color:var(--color-primary-cyan);box-shadow:0 0 0 1px var(--color-primary-cyan),0 0 12px rgba(0,229,255,.25)}.ui-card--auction-active{border-color:var(--color-success);box-shadow:0 0 0 1px rgba(16,185,129,.3)}.ui-card--auction-ended{opacity:.85;border-color:var(--color-border)}.ui-badge{padding:.2rem .5rem;font-size:.75rem;border-radius:.25rem;text-transform:uppercase;letter-spacing:.02em}.ui-badge,.ui-countdown{display:inline-flex;align-items:center;font-weight:600}.ui-countdown{gap:.35rem;transition:color .3s ease,transform .2s ease}.ui-countdown__label{font-size:.875rem;color:var(--color-textbase)}.ui-countdown__value{font-size:1rem}.ui-countdown--soon .ui-countdown__value{color:var(--color-warning)}.ui-countdown--urgent .ui-countdown__value{color:var(--color-danger)}.ui-countdown--critical .ui-countdown__value{color:var(--color-danger);animation:ui-countdown-pulse 1s ease-in-out infinite}.ui-countdown--reduce-motion.ui-countdown--critical .ui-countdown__value{animation:none}.ui-countdown--ended .ui-countdown__value{color:var(--color-textbase);opacity:.8}@keyframes ui-countdown-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.9;transform:scale(1.02)}}.ui-currency{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ui-currency__primary{font-weight:700}.ui-currency--sm{font-size:.875rem}.ui-currency--md{font-size:1rem}.ui-currency--lg{font-size:1.25rem}.ui-currency__conversion{font-size:.9em;font-weight:500;color:var(--color-textbase);opacity:.9}.ui-currency__conversion-label{margin-right:.15em}.ui-secure-modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.ui-secure-modal{background:var(--color-primary);border-radius:.75rem;box-shadow:0 20px 40px rgba(0,0,0,.2);max-width:24rem;width:100%;padding:1.5rem}.ui-secure-modal__title{font-size:1.125rem;font-weight:var(--font-heading-weight);margin:0 0 1rem}.ui-secure-modal__body{color:var(--color-textbase);font-size:.9375rem;margin-bottom:1.5rem}.ui-secure-modal__actions{display:flex;gap:.75rem;justify-content:flex-end}