:root{--bg:#FAFAF7;--surface:#FFFFFF;--border:#E5E5E5;--fg-1:#111111;--fg-2:#4B5563;--fg-3:#9CA3AF;--accent:#1D4ED8;--accent-fg:#FFFFFF}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg-1);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,system-ui,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font:inherit;cursor:pointer}.page{max-width:520px;margin:0 auto;padding:56px 24px 80px;min-height:100vh;display:flex;flex-direction:column;justify-content:center}.title{font-size:32px;font-weight:600;letter-spacing:-.025em;margin:0 0 8px}.subtitle{font-size:16px;color:var(--fg-2);margin:0 0 36px;line-height:1.45}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;margin-bottom:16px}.cta{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px 20px;border-radius:14px;font-size:17px;font-weight:600;letter-spacing:-.005em;border:none;transition:transform .12s,opacity .12s}.cta:active{transform:scale(.98)}.cta:disabled{opacity:.55;cursor:default}.cta.dark{background:#181818;color:#FFFFFF}.cta-icon{width:22px;height:22px;object-fit:contain;flex-shrink:0}.promo-stack{position:relative;width:100%;height:0;margin-bottom:20px;transition:height .5s cubic-bezier(.4,0,.2,1)}.promo-stack.landed-1{height:84px}.promo-stack.landed-2{height:124px}.promo-stack.landed-3{height:154px}.promo-card{position:absolute;left:0;right:0;bottom:0;background:#FFFFFF;border:2px solid #181818;border-radius:20px;overflow:hidden;box-shadow:0 8px 24px -8px rgba(0,0,0,.22);transition:transform .7s cubic-bezier(.34,1.56,.64,1),opacity .22s ease-out;will-change:transform,opacity}.promo-card img{display:block;width:100%;height:auto;animation:promo-shake .26s cubic-bezier(.36,.07,.19,.97) forwards;animation-play-state:paused}@keyframes promo-shake{0%,to{transform:translateX(0)}20%{transform:translateX(-1.5px)}45%{transform:translateX(1.5px)}70%{transform:translateX(-1px)}90%{transform:translateX(.5px)}}.promo-card-pending{opacity:0;transform:translateY(-520px) rotate(0deg);pointer-events:none}.promo-card-back{z-index:1;transform:translateY(-72px) rotate(-3deg);opacity:1}.promo-card-middle{z-index:2;transform:translateY(-40px) rotate(2.2deg);opacity:1}.promo-card-front{z-index:3;transform:translateY(0) rotate(-1.5deg);opacity:1;transition:transform .6s cubic-bezier(.22,1.05,.36,1),opacity .22s ease-out}.promo-card[data-idx="0"] img{animation-delay:1.35s;animation-play-state:running}.promo-card[data-idx="1"] img{animation-delay:1.55s;animation-play-state:running}.promo-card[data-idx="2"] img{animation-delay:1.7s;animation-play-state:running}.dust{position:absolute;bottom:-14px;left:50%;width:70%;height:18px;opacity:0;pointer-events:none;background:radial-gradient(ellipse at center,rgba(40,40,40,.32) 0,transparent 70%);transform:translateX(-50%) scaleX(.5) scaleY(.3);filter:blur(4px);z-index:4}.dust-1{animation:dust-puff .7s ease-out 1.35s forwards}.dust-2{animation:dust-puff .7s ease-out 1.55s forwards}.dust-3{animation:dust-puff .7s ease-out 1.75s forwards}@keyframes dust-puff{0%{opacity:0;transform:translateX(-50%) scaleX(.5) scaleY(.3)}15%{opacity:.55;transform:translateX(-50%) scaleX(.95) scaleY(.6)}to{opacity:0;transform:translateX(-50%) scaleX(1.6) scaleY(.9)}}.brand{display:flex;flex-direction:column;align-items:center;gap:14px;margin-bottom:16px;text-align:center}.brand-mark{width:72px;height:72px;border-radius:18px;flex-shrink:0}.brand .title{margin:0}.brand+.subtitle{text-align:center}.step{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--border)}.step:last-child{border-bottom:none}.step-num{flex-shrink:0;width:26px;height:26px;border-radius:999px;background:var(--fg-1);color:#FFFFFF;font-weight:600;font-size:13px;display:inline-flex;align-items:center;justify-content:center}.step-body{flex:1 1;font-size:14.5px;line-height:1.5;color:var(--fg-2)}.step-body strong{color:var(--fg-1);font-weight:600}.copy{font-family:ui-monospace,SF Mono,Menlo,monospace;background:#F3F4F6;padding:10px 12px;word-break:break-all;-webkit-user-select:all;-moz-user-select:all;user-select:all}.copy,.copy-btn{margin-top:8px;font-size:13px;border:1px solid var(--border);border-radius:8px}.copy-btn{padding:8px 12px;background:var(--surface);color:var(--fg-1);font-weight:500}.muted{font-size:13px;color:var(--fg-3);text-align:center;margin-top:24px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}@media (prefers-color-scheme:dark){:root{--bg:#0B0B0C;--surface:#18181B;--border:#27272A;--fg-1:#FAFAFA;--fg-2:#A1A1AA;--fg-3:#71717A}.copy{background:#1F1F22}}