.checkout-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(1.5rem,3vw,2.5rem);padding-block:clamp(2rem,4vw,3rem) clamp(4rem,8vw,6rem);align-items:start}@media(max-width:880px){.checkout-grid{grid-template-columns:1fr}.checkout-summary-col{order:-1}}.checkout-form{display:flex;flex-direction:column;gap:1.25rem;scroll-margin-top:1rem}.checkout-stepper{background:#ffffffd9;backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border:1px solid var(--color-divider);border-radius:var(--radius-lg);padding:1rem 1.25rem .85rem;box-shadow:0 4px 14px -10px #6641ef29}.checkout-stepper-list{display:flex;align-items:flex-start;justify-content:space-between;gap:4px;list-style:none;padding:0;margin:0;position:relative}.checkout-stepper-item{flex:1;display:flex;align-items:center;position:relative;min-width:0}.checkout-stepper-button{appearance:none;background:transparent;border:0;padding:.25rem .4rem .5rem;color:var(--color-fg-subtle);cursor:pointer;font:inherit;display:flex;flex-direction:column;align-items:center;gap:.4rem;width:100%;line-height:1.2;transition:color .2s cubic-bezier(.32,.72,0,1)}.checkout-stepper-button[aria-disabled=true]{cursor:default}.checkout-stepper-button:hover:not([aria-disabled=true]){color:var(--color-primary)}.checkout-stepper-button:focus-visible{outline:2px solid var(--color-primary);outline-offset:4px;border-radius:4px}.checkout-stepper-dot{flex:none;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:#fff;border:2px solid var(--color-divider);color:var(--color-fg-muted);font-size:.85rem;font-weight:700;transition:background .24s cubic-bezier(.32,.72,0,1),border-color .24s cubic-bezier(.32,.72,0,1),color .24s cubic-bezier(.32,.72,0,1),box-shadow .24s cubic-bezier(.32,.72,0,1)}.checkout-stepper-current .checkout-stepper-dot{background:linear-gradient(135deg,var(--color-primary),#8B5CF6);border-color:var(--color-primary);color:#fff;box-shadow:0 0 0 6px #6641ef29}.checkout-stepper-current .checkout-stepper-button{color:var(--color-primary)}.checkout-stepper-complete .checkout-stepper-dot{background:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary)}.checkout-stepper-complete .checkout-stepper-button{color:var(--color-primary)}.checkout-stepper-num{display:inline-block;line-height:1}.checkout-stepper-label{font-size:.8rem;font-weight:600;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.checkout-stepper-short{display:none}.checkout-stepper-line{position:absolute;top:16px;left:calc(50% + 22px);right:calc(-50% + 22px);height:2px;background:var(--color-divider);transition:background .32s cubic-bezier(.32,.72,0,1);pointer-events:none;z-index:0}.checkout-stepper-line.is-complete{background:linear-gradient(90deg,var(--color-primary),rgba(102,65,239,.4))}.checkout-stepper-counter{margin:.85rem 0 0;text-align:center;font-size:.8rem;font-weight:600;letter-spacing:.06em;color:var(--color-fg-muted);text-transform:uppercase}@media(max-width:640px){.checkout-stepper-label{display:none}.checkout-stepper-short{display:inline;font-size:.75rem;font-weight:600}.checkout-stepper-line{left:calc(50% + 18px);right:calc(-50% + 18px)}.checkout-stepper-dot{width:28px;height:28px;font-size:.78rem}.checkout-stepper-line{top:14px}}.checkout-step-viewport{position:relative;overflow:hidden}.checkout-step-content{will-change:transform,opacity}.checkout-step-shell{background:#ffffffeb;border:1px solid var(--color-divider);border-radius:var(--radius-lg);padding:clamp(1.5rem,3vw,2rem);display:flex;flex-direction:column;gap:1.25rem;box-shadow:0 4px 18px -14px #6641ef2e}.checkout-step-header{display:flex;flex-direction:column;gap:.4rem}.checkout-step-title{font-size:clamp(1.25rem,2vw,1.55rem);margin:0;letter-spacing:-.018em;color:var(--color-fg);line-height:1.2}.checkout-step-description{margin:0;color:var(--color-fg-muted);font-size:.95rem;line-height:1.55}.checkout-step-fields{display:flex;flex-direction:column;gap:1rem}.checkout-step-nav{display:flex;justify-content:space-between;align-items:center;gap:.85rem;padding-top:.5rem}.checkout-step-back,.checkout-step-next,.checkout-step-submit{display:inline-flex;align-items:center;gap:.45rem}.checkout-step-back{padding:.75rem 1rem}.checkout-step-next,.checkout-step-submit{padding:.95rem 1.5rem;font-weight:700}.checkout-step-back:disabled{opacity:.4;cursor:not-allowed}.checkout-step-submit:disabled{opacity:.7;cursor:progress}.checkout-step-submit svg,.checkout-step-next svg{transition:transform .2s cubic-bezier(.32,.72,0,1)}.checkout-step-next:hover svg,.checkout-step-submit:hover svg{transform:translate(3px)}.checkout-spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:checkout-spin .7s linear infinite}@keyframes checkout-spin{to{transform:rotate(360deg)}}.checkout-review-section{background:var(--color-surface-1);border:1px solid var(--color-divider);border-radius:var(--radius-md);padding:1rem 1.2rem}.checkout-review-section-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.7rem}.checkout-review-section-title{margin:0;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--color-primary)}.checkout-review-edit{appearance:none;background:transparent;border:0;color:var(--color-fg-muted);font:inherit;font-size:.82rem;font-weight:600;padding:.25rem .5rem;border-radius:999px;cursor:pointer;display:inline-flex;align-items:center;gap:.3rem;transition:color .18s,background .18s}.checkout-review-edit:hover{color:var(--color-primary);background:var(--color-primary-light)}.checkout-review-edit:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.checkout-review-rows{margin:0;display:grid;grid-template-columns:max-content 1fr;gap:.4rem 1rem}.checkout-review-row{display:contents}.checkout-review-row dt{color:var(--color-fg-muted);font-size:.88rem;font-weight:600}.checkout-review-row dd{margin:0;color:var(--color-fg);font-size:.92rem;word-break:break-word}@media(max-width:540px){.checkout-review-rows{grid-template-columns:1fr;gap:.15rem}.checkout-review-row dt{margin-top:.35rem}}.checkout-acks{background:var(--color-surface-1);border:1px solid var(--color-divider);border-radius:var(--radius-md);padding:1rem 1.2rem;display:flex;flex-direction:column;gap:.75rem}.checkout-acks-title{margin:0;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;font-weight:700;color:var(--color-primary)}.checkout-acks-description{margin:0;color:var(--color-fg-muted);font-size:.9rem;line-height:1.5}.form-field{display:flex;flex-direction:column;gap:.4rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:.85rem}.form-row-3{grid-template-columns:1fr 2fr 2fr}@media(max-width:540px){.form-row,.form-row-3{grid-template-columns:1fr}}.form-label{font-size:.88rem;font-weight:600;color:var(--color-fg)}.form-required{color:var(--color-primary)}.form-hint{margin:0;font-size:.82rem;color:var(--color-fg-subtle);line-height:1.45}.form-error{margin:0;font-size:.82rem;color:#dc2626;line-height:1.45}.form-input{width:100%;padding:.7rem .9rem;font-family:var(--font-sans);font-size:.98rem;color:var(--color-fg);background:#fff;border:1px solid var(--color-divider);border-radius:var(--radius-md);line-height:1.4;transition:border-color .16s cubic-bezier(.32,.72,0,1),box-shadow .16s cubic-bezier(.32,.72,0,1)}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #6641ef29}.form-input::placeholder{color:var(--color-fg-subtle)}.form-textarea{resize:vertical;min-height:64px}.form-select{appearance:none;padding-right:2.5rem;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right .85rem center;background-size:16px 16px}.form-field-error .form-input{border-color:#dc2626;box-shadow:0 0 0 3px #dc26261f}.form-fieldset{border:0;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.form-legend{font-size:.88rem;font-weight:600;color:var(--color-fg);margin-bottom:.4rem}.form-radio{display:flex;align-items:center;gap:.65rem;padding:.65rem .85rem;border:1px solid var(--color-divider);border-radius:var(--radius-md);cursor:pointer;font-size:.95rem;color:var(--color-fg);background:#fff;transition:border-color .16s,background .16s}.form-radio:hover{border-color:#6641ef4d}.form-radio.is-selected{border-color:var(--color-primary);background:var(--color-primary-light)}.form-radio input{accent-color:var(--color-primary)}.form-check{margin-top:.5rem}.form-check-label{display:flex;gap:.65rem;align-items:flex-start;font-size:.92rem;line-height:1.55;color:var(--color-fg);cursor:pointer}.form-check-label input{margin-top:4px;accent-color:var(--color-primary);flex:none}.form-check-label a{color:var(--color-primary);text-decoration:underline;text-underline-offset:3px}.form-check-error .form-check-label{color:#b91c1c}.checkout-collapse{border-top:1px solid var(--color-divider);margin-top:.5rem;padding-top:.5rem}.checkout-collapse summary{cursor:pointer;font-weight:600;color:var(--color-fg);padding:.3rem 0;list-style:none}.checkout-collapse summary::-webkit-details-marker{display:none}.checkout-collapse summary:before{content:"+";display:inline-block;width:1.25rem;color:var(--color-primary);font-weight:700}.checkout-collapse[open] summary:before{content:"−"}.checkout-collapse-body{padding:.75rem 0 0;display:flex;flex-direction:column;gap:1rem}.checkout-collapse-summary{display:inline}.honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.checkout-submit-row{display:flex;flex-direction:column;align-items:flex-start;gap:.75rem;padding-top:.5rem}.checkout-submit{padding:1rem 1.75rem;font-size:1rem;font-weight:700}.checkout-submit:disabled{opacity:.65;cursor:progress}.checkout-submit-error{margin:0;color:#b91c1c;font-size:.9rem;line-height:1.5}