/* Shop, e-books, premium plans, payment (Phase 2). Builds on site.css tokens. */
.shop-head{background:linear-gradient(180deg,var(--brand-l),var(--bg));padding:2.6rem 0 1.4rem}
.shop-head h1{font-size:clamp(2rem,5vw,3.1rem);margin-bottom:.4rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.2rem 0 0;padding:0;list-style:none}
.chips a{display:inline-block;padding:.5rem 1.05rem;border-radius:999px;border:1.5px solid var(--line);background:var(--surface);color:var(--muted);text-decoration:none;font-weight:600;font-size:.9rem}
.chips a:hover{border-color:var(--brand);color:var(--ink)}.chips a.on{background:var(--deep);border-color:var(--deep);color:#fff}
.searchbar{display:flex;gap:.6rem;margin-top:1.2rem;max-width:520px}.searchbar input{flex:1;min-height:48px;padding:.6rem 1.1rem;border:1.5px solid var(--line);border-radius:999px;font:400 1rem var(--sans);background:#fff}
.searchbar input:focus{outline:3px solid var(--brand-l);border-color:var(--brand)}
.pc-cta{display:inline-block;margin-top:.8rem;font-weight:700;font-size:.9rem;color:var(--brand-d)}.pc:hover .pc-cta{text-decoration:underline}
.empty{text-align:center;padding:3.5rem 1rem;border:1.5px dashed var(--line);border-radius:var(--r-lg);background:var(--surface)}
.empty h3{font-size:1.3rem}.empty p{color:var(--muted);max-width:44ch;margin:0 auto 1.2rem}
.crumbs{font-size:.88rem;color:var(--muted);padding:1.4rem 0 .4rem}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--ink)}
.pd{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:start;padding:1rem 0 3rem}
@media (max-width:860px){.pd{grid-template-columns:1fr}}
.gal-main{aspect-ratio:1/1;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;display:grid;place-items:center;font-size:5rem;box-shadow:var(--shadow)}
.gal-main img{width:100%;height:100%;object-fit:contain;background:#fff}
.gal-thumbs{display:flex;gap:.6rem;margin-top:.8rem;flex-wrap:wrap}.gal-thumbs button{width:72px;height:72px;padding:0;border:2px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;overflow:hidden}
.gal-thumbs button[aria-current=true]{border-color:var(--brand)}.gal-thumbs img{width:100%;height:100%;object-fit:cover;display:block}
.pd h1{font-size:clamp(1.8rem,4vw,2.7rem)}.pd .lede{font-size:1.1rem;color:var(--muted)}
.buy{margin:1.6rem 0 .8rem;display:flex;flex-direction:column;gap:.7rem;align-items:flex-start}
.btn-lg{min-height:56px;padding:.8rem 2rem;font-size:1.05rem}
.btn-amz{background:#ffb338;border-color:#ffb338;color:#1a1a1a;box-shadow:0 8px 22px rgba(255,179,56,.35)}.btn-amz:hover{background:#f5a21f;border-color:#f5a21f}
.fine{font-size:.82rem;color:var(--muted);margin:0}
.desc{margin-top:2rem;padding-top:1.6rem;border-top:1px solid var(--line)}.desc h2{font-size:1.35rem}.desc p{max-width:68ch}
.meta-list{display:flex;flex-wrap:wrap;gap:.5rem 1.4rem;list-style:none;padding:0;margin:1rem 0 0;color:var(--muted);font-size:.92rem}.meta-list li::before{content:"✓";color:var(--brand);font-weight:700;margin-right:.45rem}
.related{padding:0 0 4rem}.related h2{font-size:1.6rem}
/* premium plans */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:1.2rem;max-width:960px;margin:0 auto}
.plan{background:var(--surface);border:1.5px solid var(--line);border-radius:var(--r-lg);padding:2rem;box-shadow:var(--shadow);display:flex;flex-direction:column}
.plan.hot{border-color:var(--brand);box-shadow:var(--shadow-h)}.plan h3{font-size:1.25rem}
.plan .amt{font:800 3rem/1 var(--display);letter-spacing:-.04em;margin:.6rem 0 .2rem}.plan .per{color:var(--muted);font-size:.95rem;margin-bottom:1.2rem}
.plan ul{list-style:none;padding:0;margin:0 0 1.6rem;display:grid;gap:.6rem}.plan li::before{content:"✓";color:var(--brand);font-weight:700;margin-right:.55rem}.plan .btn{margin-top:auto}
.banner{max-width:960px;margin:0 auto 1.6rem;padding:1rem 1.3rem;border-radius:var(--r);background:var(--brand-l);color:var(--deep);font-weight:500}
.banner.warn{background:#fff7e8;color:#6a4a00;border:1px solid #f2d9a8}
/* payment */
.pay{max-width:640px;margin:0 auto;padding:2rem 0 4rem}
.pay-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(1.3rem,4vw,2.2rem);box-shadow:var(--shadow)}
.sum{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.2rem;background:var(--bg);border-radius:var(--r);margin-bottom:1.4rem}.sum strong{font:800 1.5rem var(--display)}
.tabs{display:flex;gap:.5rem;margin-bottom:1.2rem}.tabs button{flex:1;min-height:48px;border:1.5px solid var(--line);background:#fff;border-radius:14px;font:600 .95rem var(--sans);cursor:pointer;color:var(--ink)}
.tabs button[aria-selected=true]{border-color:var(--brand);background:var(--brand-l)}
.box{background:var(--bg);border-radius:var(--r);padding:1.4rem;text-align:center;margin-bottom:1.4rem}.box img.qr{width:180px;height:180px;border-radius:12px;display:block;margin:0 auto 1rem;background:#fff}
.addr{display:flex;gap:.6rem;align-items:center;background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:.7rem .9rem;text-align:left}.addr code{flex:1;word-break:break-all;font-size:.9rem}
.steps-l{text-align:left;font-size:.92rem;color:var(--muted);padding-left:1.2rem;margin:1rem 0 0}
.field{margin-bottom:1.1rem}.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.4rem}.field input[type=file]{width:100%;padding:.9rem;border:1.5px dashed var(--line);border-radius:12px;background:var(--bg)}
.err{background:#fdecea;border:1px solid #f3b9b4;color:var(--danger);border-radius:var(--r);padding:.8rem 1rem;margin-bottom:1rem;font-size:.92rem}
.status{max-width:560px;margin:0 auto;text-align:center;padding:3.5rem 0 4.5rem}.status .big{width:84px;height:84px;border-radius:50%;background:var(--brand-l);display:grid;place-items:center;font-size:2.4rem;margin:0 auto 1.4rem}
.status .card{text-align:left;margin:1.4rem 0}
/* forms (login, signup, guest) */
.field input:not([type=file]):not([type=radio]):not([type=checkbox]),.field select,.field textarea{width:100%;min-height:48px;padding:.7rem 1rem;border:1.5px solid var(--line);border-radius:12px;font:400 1rem var(--sans);background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:3px solid var(--brand-l);border-color:var(--brand)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}@media (max-width:520px){.row2{grid-template-columns:1fr}}
.radios{display:flex;gap:.7rem}.radios label{flex:1;display:flex;align-items:center;justify-content:center;gap:.5rem;min-height:48px;border:1.5px solid var(--line);border-radius:12px;background:#fff;font-weight:600;cursor:pointer;margin:0}
.radios label:has(input:checked){border-color:var(--brand);background:var(--brand-l)}
.auth{max-width:480px;margin:0 auto;padding:2.5rem 0 4.5rem}.auth h1{font-size:clamp(1.7rem,4vw,2.2rem)}
.alt{text-align:center;margin-top:1.2rem;color:var(--muted);font-size:.95rem}.alt a{font-weight:600}
.ok{background:var(--brand-l);border:1px solid #b9e2de;color:var(--deep);border-radius:var(--r);padding:.8rem 1rem;margin-bottom:1rem;font-size:.95rem}