:root{--stp-primary:#1a1a2e;--stp-accent:#e94560;--stp-white:#fff;--stp-radius-pill:50px;--stp-radius-sq:6px;--stp-shadow:0 4px 20px rgba(0,0,0,.15);--stp-shadow-hover:0 8px 30px rgba(0,0,0,.25);--stp-transition:all .25s cubic-bezier(.4,0,.2,1)}.stp-button-wrapper{display:flex;margin:16px 0 24px;clear:both}.stp-align-left{justify-content:flex-start}.stp-align-center{justify-content:center}.stp-align-right{justify-content:flex-end}.stp-button{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:14px;font-weight:600;letter-spacing:.02em;color:var(--stp-white);background:var(--stp-primary);border:none;cursor:pointer;text-decoration:none;position:relative;overflow:hidden;transition:var(--stp-transition);box-shadow:var(--stp-shadow);outline:none;white-space:nowrap;user-select:none;-webkit-user-select:none;line-height:1}.stp-button:before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);transition:left .45s ease}.stp-button:hover:before{left:100%}.stp-button:after{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--stp-accent);opacity:0;transition:opacity .2s ease}.stp-button:hover:after{opacity:1}.stp-button:hover{transform:translateY(-2px);box-shadow:var(--stp-shadow-hover);background:color-mix(in srgb,var(--stp-primary) 85%,#000)}.stp-button:active{transform:translateY(0)}.stp-button:focus-visible{outline:2px solid var(--stp-accent);outline-offset:3px}.stp-style-pill{border-radius:var(--stp-radius-pill)}.stp-style-square{border-radius:var(--stp-radius-sq)}.stp-style-minimal{background:0 0;color:var(--stp-primary);box-shadow:none;border:1.5px solid var(--stp-primary);border-radius:var(--stp-radius-sq);padding:9px 20px}.stp-style-minimal:hover{background:var(--stp-primary);color:var(--stp-white);box-shadow:var(--stp-shadow)}.stp-btn-icon{display:flex;align-items:center;flex-shrink:0;transition:transform .25s ease}.stp-button:hover .stp-btn-icon{transform:translateY(-1px)}.stp-btn-loader{display:none;align-items:center}.stp-spin-path{animation:stp-spin .8s linear infinite;transform-origin:center}@keyframes stp-spin{from{stroke-dashoffset:0;transform:rotate(0deg)}to{transform:rotate(360deg)}}.stp-button.stp-loading .stp-btn-icon{display:none}.stp-button.stp-loading .stp-btn-loader{display:flex}.stp-button.stp-loading{opacity:.8;cursor:wait;pointer-events:none}.stp-button.stp-success{background:#2d7a4f !important;pointer-events:none}.stp-button.stp-success:after{opacity:0 !important}.stp-toast{position:fixed;bottom:24px;right:24px;background:var(--stp-primary);color:var(--stp-white);padding:12px 20px;border-radius:8px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:14px;font-weight:500;box-shadow:0 8px 32px rgba(0,0,0,.2);display:flex;align-items:center;gap:10px;z-index:99999;transform:translateY(100px);opacity:0;transition:all .35s cubic-bezier(.34,1.56,.64,1);max-width:320px}.stp-toast.stp-toast-show{transform:translateY(0);opacity:1}.stp-toast-icon{font-size:18px;flex-shrink:0}.stp-toast.stp-toast-error{background:#c0392b}.stp-toast.stp-toast-success{background:#2d7a4f}@media (max-width:600px){.stp-button-wrapper{justify-content:center !important}.stp-button{font-size:13px;padding:9px 18px}}