:root{--paper:#f7f6ef;--ink:#173931;--teal:#086d71;--rust:#b74c22;--muted:#53665e;--line:#d8dfd5;--soft:#edf1e8}
.version-options input[type=checkbox]{width:auto;min-height:0;margin-right:8px;accent-color:var(--teal)}footer{flex-wrap:wrap}*{box-sizing:border-box}body{margin:0;min-height:100svh;display:flex;flex-direction:column;background:var(--paper);color:var(--ink);font:16px/1.6 "Segoe UI",system-ui,sans-serif}
header,footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px max(22px,calc((100vw - 1120px)/2));border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand-mark{display:block;width:63px;line-height:0}.brand-mark svg{width:100%;height:auto}.wordmark{display:grid;font-size:16px;line-height:1.15}.wordmark strong{font-weight:750}.letter-a{color:var(--rust)}.letter-i{color:var(--teal)}
.header-link{font-size:14px;text-decoration:none;white-space:nowrap}.stage{width:min(1120px,100%);margin:auto;display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,6vw,86px);align-items:center;padding:clamp(36px,6vh,76px) 24px}.panel{min-width:0;animation:arrive .45s ease-out both}
.kit-visual{padding:30px 12px;text-align:center;perspective:1400px}.book{width:min(300px,90%);margin:auto;position:relative;text-align:left;background:#faf9f1;border:1px solid #dce2d7;border-left:8px solid var(--teal);border-radius:3px 9px 9px 3px;padding:26px 27px 28px 31px;box-shadow:5px 5px 0 #e4e7dc,12px 15px 0 -6px #d8ded2,18px 26px 45px #17393118;transform:rotateY(-12deg) rotateZ(-3deg);animation:book-in .7s ease-out both}
.book::after{content:"";position:absolute;inset:0;border-left:1px solid #fff9;pointer-events:none}.cover-mark{width:60px;line-height:0;margin-bottom:28px}.cover-mark svg{width:100%;height:auto}.cover-label,.cover-format{font-size:10px;letter-spacing:.12em;line-height:1.5}.cover-label{font-weight:700;color:var(--teal)}.cover-title{font-size:25px;font-weight:750;line-height:1.15;letter-spacing:-.045em;margin:20px 0}.cover-tagline{font-size:15px;font-weight:650;line-height:1.4}.cover-format{color:var(--muted);font-size:9px;letter-spacing:0;margin:46px 0 0}
.visual-caption{margin:30px 0 3px;font-size:14px;font-weight:600}.visual-words{font-size:12px;color:var(--muted);margin:0}.visual-words span{padding:0 7px;color:var(--rust)}
h1{font-size:clamp(30px,3.4vw,43px);line-height:1.08;letter-spacing:-.045em;margin:12px 0 22px;max-width:16ch}h2{font-size:24px;line-height:1.2;letter-spacing:-.025em}p{margin:0 0 22px}.eyebrow{display:flex;align-items:center;gap:10px;font-size:11px;font-weight:700;letter-spacing:.13em;color:var(--teal);margin-bottom:18px}.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(to right,var(--teal) 65%,var(--rust) 65%)}
a{color:var(--teal);text-underline-offset:4px}a:hover{color:var(--ink)}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:48px;padding:12px 19px;border:1px solid var(--teal);border-radius:6px;background:var(--teal);color:white;font:600 15px/1.4 "Segoe UI",system-ui,sans-serif;text-decoration:none;cursor:pointer;transition:background .18s ease,box-shadow .18s ease,transform .18s ease}.primary:hover{background:#07595b;color:#fff;box-shadow:0 5px 14px #17393112}.secondary{background:transparent;color:var(--teal)}.secondary:hover{background:var(--soft)}button:disabled{opacity:.7;cursor:wait;box-shadow:none}.reader-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:26px 0 16px}
form{margin:24px 0 18px}label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}input{width:100%;min-height:52px;display:block;background:#fffefa;border:1px solid #adbcb1;border-radius:6px;font:inherit;padding:12px 14px;color:var(--ink)}input::placeholder{color:#78887d}.hint{font-size:13px;line-height:1.6;color:var(--muted);margin:10px 0 20px}.quiet{font-size:14px;color:var(--muted);margin:18px 0}.separated{border-top:1px solid var(--line);padding-top:20px}.resend{border-top:1px solid var(--line);margin-top:28px;padding-top:18px}.resend summary{cursor:pointer;color:var(--teal);font-size:14px;padding:5px 0}.resend h2{margin-top:22px}
.order-summary{border-block:1px solid var(--line);padding:20px 0;margin:24px 0}.order-summary strong{display:block}.order-summary>span{display:flex;justify-content:space-between;gap:18px;margin:8px 0;font-size:14px}.order-summary p{font-size:14px;color:var(--muted);margin:12px 0 0}.notice{border-left:3px solid var(--teal);padding:12px 16px;background:var(--soft);font-size:14px;margin:24px 0 0;overflow-wrap:anywhere}.notice:empty{display:none}.mode{color:var(--rust);font-size:13px}.changes{color:var(--muted)}footer{border-bottom:0;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}footer a{text-decoration:none}
.reader-shell{width:min(1400px,100%);margin:auto;padding:36px 24px;flex:1}.reader-shell h1{max-width:none;font-size:clamp(28px,4vw,38px)}.text-button{border:0;background:none;color:var(--muted);text-decoration:underline;font-weight:400}.version-options{font-size:14px;color:var(--muted);margin:20px 0}.version-options summary{cursor:pointer;color:var(--teal);padding:5px 0}.version-options p{margin:14px 0}iframe{width:100%;height:75vh;border:1px solid var(--line);border-radius:6px;margin-top:16px;background:white}.reader-page .panel{animation:none}.skip{position:absolute;left:20px;top:-100px;background:white;padding:12px;z-index:10}.skip:focus{top:10px}:focus-visible{outline:3px solid var(--rust);outline-offset:4px}[hidden]{display:none!important}
.brand-mark path{stroke-dasharray:1;animation:ink-in .8s ease-out both}.brand-mark path:nth-child(n+4){animation-delay:.12s}
@keyframes ink-in{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}@keyframes arrive{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}@keyframes book-in{from{opacity:0;transform:rotateY(-18deg) rotateZ(-5deg) translateY(12px)}to{opacity:1;transform:rotateY(-12deg) rotateZ(-3deg)}}
@media(max-width:700px){header,footer{padding:18px 22px}.brand-mark{width:49px}.wordmark{font-size:14px}.header-link{font-size:12px}.stage{grid-template-columns:1fr;gap:28px;padding:32px 22px 46px;max-width:540px}.kit-visual{display:flex;align-items:center;justify-content:center;padding:6px 0 12px;border-bottom:1px solid var(--line)}.book{width:190px;padding:18px 16px 18px 21px;border-left-width:5px;transform:rotateZ(-2deg);animation:arrive .45s ease-out both}.cover-mark{width:35px;margin:0 0 14px}.cover-label{font-size:8px}.cover-title{font-size:18px;margin:12px 0}.cover-tagline{font-size:11px;margin:0}.cover-format,.visual-caption,.visual-words{display:none}h1{font-size:34px;max-width:18ch}.reader-actions{gap:10px}.reader-actions .button{flex:1 0 auto}.reader-shell{padding:28px 18px}footer{align-items:flex-start;flex-wrap:wrap;gap:7px}input{font-size:16px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.brand-mark path{stroke-dasharray:none}.book{transform:none}}
@media print{header,footer,.kit-visual,button,.reader-actions{display:none}.stage,.reader-shell{display:block;padding:0}.panel{animation:none}body{background:white}}