:root{color-scheme:dark;--bg:#080d1c;--panel:#111a2e;--stroke:#293653;--text:#f4f5fc;--muted:#adb9d3;--gold:#f9c86d;--violet:#a899ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse 90% 500px at 50% -200px,#28335d 0%,transparent 85%),var(--bg);color:var(--text);font:15px/1.55 system-ui,-apple-system,'Segoe UI',sans-serif}a{color:var(--gold)}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0;border-radius:11px;padding:12px 18px;background:var(--gold);color:#201b2b;font-weight:800;transition:transform .18s,filter .18s}button:hover{filter:brightness(1.08);transform:translateY(-1px)}button:disabled{opacity:.55;cursor:wait}input,select,textarea{width:100%;background:#131e36;border:1px solid #3b4967;color:white;padding:13px 15px;border-radius:12px}input:focus,select:focus{outline:2px solid #8875ff;outline-offset:1px}label{display:block;margin:12px 0}.shell{max-width:1230px;margin:auto;padding:0 28px}.top{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;padding:18px 0;border-bottom:1px solid #28344e}.top>a{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-size:18px;font-weight:850;letter-spacing:-.3px}.top>a img{border-radius:11px}.top nav{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.top nav a{color:#d9e1f6;text-decoration:none;font-weight:600;font-size:13px;padding:8px 11px;border-radius:9px}.top nav a:hover{background:#202b49;color:#fff}.hero{position:relative;overflow:hidden;padding:64px clamp(24px,5vw,65px);border:1px solid #46517e;border-radius:26px;background:radial-gradient(circle at 90% 15%,#7842ad 0%,transparent 45%),radial-gradient(circle at 75% 100%,#203e76 0%,transparent 55%),linear-gradient(115deg,#18284e,#16162f);margin:28px 0 50px;box-shadow:0 25px 70px #02061755}.hero:after{content:'📚';position:absolute;right:7%;top:18%;font-size:clamp(90px,14vw,180px);opacity:.22;transform:rotate(-12deg);pointer-events:none}.hero>*{position:relative;z-index:1}.hero-kicker{background:#ffffff19!important;border:1px solid #ffffff38!important;letter-spacing:1.3px!important;color:#ffe0a2!important}.hero h1{font-size:clamp(34px,5vw,64px);line-height:1.1;letter-spacing:-1.8px;max-width:750px;margin:20px 0}.gold{color:#ffd88d}.hero p{max-width:570px;font-size:17px;color:#dbe2f7}.hero-actions{display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-top:25px}.hero-cta{display:inline-flex;align-items:center;gap:28px;text-decoration:none;color:#1a1930;background:var(--gold);font-weight:850;padding:13px 21px;border-radius:12px}.hero-secondary{font-size:14px;color:#e2e6fb;text-decoration:none}.hero-features{display:flex;flex-wrap:wrap;gap:10px 25px;margin-top:35px;color:#d4ddf1;font-size:13px}.hero-features span::first-letter{color:#70edc7}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}.section-heading h2{font-size:clamp(25px,3vw,36px);letter-spacing:-.8px;margin:4px 0}.section-heading p{margin:0}.eyebrow{font-size:11px;font-weight:800;letter-spacing:2px;color:#b8a7ff}.section-icon{font-size:40px;opacity:.75}.filters{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 25px}.filters input{flex:1 1 270px;max-width:470px}.filters select{flex:0 1 200px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}.card{min-width:0;display:flex;flex-direction:column;background:linear-gradient(180deg,#17233c,#111b30);border:1px solid #334260;border-radius:20px;overflow:hidden;box-shadow:0 12px 35px #0003;transition:transform .2s,border-color .2s,box-shadow .2s}.card:hover{transform:translateY(-4px);border-color:#b6a1ff;box-shadow:0 20px 45px #0006}.cover-frame{position:relative;display:flex;align-items:center;justify-content:center;height:330px;padding:20px;background:radial-gradient(ellipse at center,#33446a,#17233b 68%,#101a2f);border-bottom:1px solid #2d3954}.cover{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;box-shadow:0 14px 30px #0008;border-radius:4px}.offer-flag{position:absolute;left:15px;top:15px;padding:7px 10px;border-radius:7px;background:#f8c56c;color:#24192a;font-weight:900;font-size:10px;letter-spacing:.7px}.card-content{display:flex;flex:1;flex-direction:column;padding:20px}.card-tags{display:flex;gap:6px;flex-wrap:wrap}.badge{display:inline-block;padding:5px 9px;border-radius:7px;background:#2a3958;color:#d7dffe;font-size:11px;font-weight:700}.card h3{font-size:19px;line-height:1.32;letter-spacing:-.35px;margin:14px 0 6px;overflow-wrap:anywhere}.book-author{font-size:12px;color:#a6b5d4;margin:0 0 12px}.book-desc{font-size:13px;line-height:1.6;color:#becae0;margin:0 0 20px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;line-clamp:3;overflow:hidden}.card-bottom{margin-top:auto;border-top:1px solid #34405a;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.price{font-size:26px;color:var(--gold);font-weight:900;white-space:nowrap}.old{text-decoration:line-through;color:#9aa7c1;font-size:14px;font-weight:500;margin-left:4px}.choose{flex:1;min-width:125px;white-space:nowrap}.panel{background:#111b31;border:1px solid #33405d;padding:25px;border-radius:18px;margin:42px 0}.panel h2{margin-top:0}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.row>*{flex:1}.hidden{display:none!important}.notice{white-space:pre-wrap;overflow-wrap:anywhere;padding:14px;border-radius:10px;background:#263756;margin:12px 0}.notice button{margin:6px}.danger{color:#ff9a9a}.muted,small{color:var(--muted)}footer{padding:25px 0 45px;text-align:center;border-top:1px solid #28344e;margin-top:40px}.empty-state{grid-column:1/-1;background:#131e34;border:1px dashed #3c4c6a;padding:45px;text-align:center;border-radius:18px}.cover-mini{width:90px;height:125px;object-fit:contain}.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(145px,1fr));gap:12px;margin:14px 0}.metric{background:#1c2a4c;border:1px solid #41527d;border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:8px}.metric strong{font-size:clamp(19px,3vw,26px);overflow-wrap:anywhere}.deleteBook{background:#8d2d48;color:#fff;margin-left:8px}@media(max-width:980px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cover-frame{height:310px}}@media(max-width:650px){.shell{padding:0 14px}.top{padding:12px 0}.top nav{gap:3px}.top nav a{font-size:12px;padding:6px 7px}.hero{padding:32px 22px;margin:15px 0 32px;border-radius:18px}.hero:after{font-size:90px;right:-10px;top:35px}.hero h1{letter-spacing:-.9px}.hero p{font-size:14px}.hero-features{gap:8px 14px;margin-top:23px;font-size:11px}.section-icon{display:none}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.cover-frame{height:220px;padding:12px}.card{border-radius:14px}.card-content{padding:12px}.card h3{font-size:15px}.book-author{font-size:11px}.book-desc{font-size:12px;-webkit-line-clamp:2;line-clamp:2}.card-bottom{display:block;padding-top:10px}.price{font-size:21px;margin-bottom:8px}.choose{width:100%;font-size:12px;padding:11px 8px}.filters{gap:9px}.filters input{flex-basis:100%;max-width:none}.filters select{flex:1;max-width:none}.panel{padding:16px}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:380px){.grid{grid-template-columns:1fr}.cover-frame{height:320px}.card-content{padding:17px}.card h3{font-size:18px}.card-bottom{display:flex}.choose{width:auto}}

/* V5: bookstore shelf layout; purchase and recovery panels retain their existing behavior. */
:root{color-scheme:light;--bg:#f6f5f0;--panel:#fff;--stroke:#e1e4e8;--text:#17263b;--muted:#627084;--gold:#eab54e}body{background:#f6f5f0;color:#17263b}.shell{max-width:1360px}.top{background:#fff;border-bottom:1px solid #e5e7eb;padding:14px 0}.top>a{color:#14243c}.top nav a{color:#35475d}.top nav a:hover{background:#eaf0f7;color:#14243c}.hero{background:linear-gradient(110deg,#15294b,#26456b 72%,#604f8b);color:#fff;padding:36px 45px;margin:20px 0 30px;box-shadow:0 12px 30px #13223b16}.hero h1{font-size:clamp(30px,4vw,46px)}.hero p,.hero-secondary{color:#e7eaf5}.hero:after{opacity:.13}.section-heading h2{color:#142d4d}.eyebrow{color:#6e56a8}.muted,small{color:#687589}.filters input,.filters select,input,select,textarea{background:#fff;color:#1c3048;border:1px solid #d2d9e3}.grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:22px;align-items:start}.card{background:transparent;border:1px solid transparent;border-radius:12px;box-shadow:none;overflow:visible;padding:8px;transition:transform .2s,background .2s,box-shadow .2s}.card:hover{transform:translateY(-5px);background:#fff;border-color:#e3e7ef;box-shadow:0 15px 30px #21334c18}.cover-action{background:transparent;border:0;padding:0;display:block;width:100%;border-radius:8px;min-width:0}.cover-action:hover{filter:none}.cover-frame{display:flex;height:265px;padding:8px;align-items:center;justify-content:center;background:transparent;border:0;position:relative}.cover{max-height:100%;max-width:100%;height:auto;width:auto;object-fit:contain;box-shadow:0 8px 17px #1b283e40;border-radius:3px}.offer-flag{top:3px;left:3px;background:#f7ce64;color:#273041}.card-content{padding:10px 3px 6px}.card h3{font-size:14px;line-height:1.35;margin:3px 0 5px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden;min-height:38px}.book-author{font-size:12px;color:#657386;margin:0 0 8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-tags{gap:4px}.badge{background:#e9eff7;color:#40546f;font-size:10px}.card-bottom{display:block;border:0;padding-top:7px}.price{color:#168048;font-size:19px}.old{font-size:12px;color:#7b8797}.buy-small{background:#203e69;color:#fff;padding:8px 10px;width:100%;margin-top:6px;font-size:12px;border-radius:8px}.panel{background:#fff;color:#1b3049;border-color:#dce3ed;scroll-margin-top:16px}.notice{background:#eef3fa;color:#243a56}.empty-state{background:#fff;color:#33465e;border-color:#d7dfeb}footer{border-color:#dfe5ec}.hero-kicker{color:#ffe0a2!important;background:#ffffff18!important}.hero-features{color:#dfe9fb}@media(max-width:1150px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:850px){.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.cover-frame{height:240px}}@media(max-width:600px){.shell{padding:0 13px}.hero{padding:26px 20px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.card{padding:5px}.cover-frame{height:205px;padding:5px}.card h3{font-size:13px;min-height:35px}.price{font-size:18px}.card-content{padding:8px 2px}.top nav a{font-size:12px}.hero:after{font-size:90px}}@media(max-width:350px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cover-frame{height:175px}.buy-small{font-size:11px}}

/* V6: click-to-preview book details; does not alter checkout */
.book-modal.hidden{display:none!important}.book-modal{position:fixed;inset:0;z-index:9999;background:rgba(7,14,29,.78);display:flex;align-items:center;justify-content:center;padding:20px;overflow-y:auto;backdrop-filter:blur(7px)}.book-modal-panel{position:relative;background:#fff;color:#15233a;border-radius:22px;width:min(880px,100%);max-height:calc(100vh - 40px);overflow-y:auto;padding:clamp(20px,4vw,40px);box-shadow:0 24px 85px #0008}.modal-close{position:absolute;right:14px;top:14px;background:#eef1f7;color:#25334b;border-radius:50%;width:39px;height:39px;padding:0;font-size:18px;z-index:2}.book-modal-grid{display:grid;grid-template-columns:minmax(170px,35%) 1fr;gap:clamp(18px,4vw,42px);align-items:start}.book-modal-art{background:#f3f5f9;border-radius:14px;padding:18px;display:flex;align-items:center;justify-content:center;min-height:300px}.book-modal-art img{display:block;max-width:100%;max-height:440px;width:auto;height:auto;object-fit:contain;box-shadow:0 9px 24px #0002}.book-modal-info h2{font-size:clamp(23px,3vw,34px);line-height:1.2;margin:10px 0}.modal-eyebrow{font-size:11px;letter-spacing:1px;font-weight:800;color:#48628d;text-transform:uppercase}.modal-author{color:#59677a}.modal-tags{display:flex;gap:8px;flex-wrap:wrap}.modal-tags .badge{background:#e8effb!important;color:#24446d!important}.book-modal-info h3{margin:24px 0 6px;font-size:17px}.modal-description{white-space:pre-line;line-height:1.7;color:#394b63;max-height:190px;overflow:auto}.modal-price{display:flex;align-items:baseline;gap:12px;margin:18px 0 6px}.modal-price strong{font-size:29px;color:#13844a}.modal-price del{color:#8490a2}.modal-assurance{font-size:12px;color:#52647b}.modal-buy{width:100%;margin-top:10px;background:#173b6b;color:white}.preview-open{overflow:hidden}.cover-action{cursor:zoom-in}@media(max-width:600px){.book-modal{padding:10px;align-items:flex-start}.book-modal-panel{max-height:calc(100dvh - 20px);padding:18px}.book-modal-grid{grid-template-columns:1fr;gap:12px}.book-modal-art{min-height:0;padding:12px}.book-modal-art img{max-height:230px}.book-modal-info h2{font-size:23px}.modal-description{max-height:120px}.book-modal-info h3{margin-top:14px}}