:root{--primary-color:#d4af37;--primary-dark:#aa8c2c;--gold-light:#e8cf7a;--bg-color:#1d1815;--card-bg:#fff;--text-main:#212529;--text-muted:#6c757d;--border-color:#e9ecef;--paper:#fbf7ee;--paper-deep:#efe7d6;--ink:#2a241f;--ink-soft:#6f655a;--rule:#d9cdb5;--leather:#24190f;--leather-light:#3a2a1b;--shadow-sm:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-md:0 10px 15px -3px #00000014, 0 4px 6px -2px #0000000a;--shadow-lg:0 20px 25px -5px #0000001a, 0 10px 10px -5px #0000000a;--radius-md:12px;--radius-lg:20px;--font-serif:"Playfair Display", "Georgia", "Times New Roman", serif;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-main);-webkit-font-smoothing:antialiased;background-image:radial-gradient(at 50% -10%,#4a3b2c 0%,#4a3b2c00 55%),radial-gradient(at 50% 110%,#2c231b 0%,#2c231b00 60%);background-attachment:fixed;min-height:100vh;line-height:1.5}.catalogue-container{max-width:1240px;margin:0 auto;padding:24px 20px 40px}.app-header{background-color:var(--card-bg);box-shadow:var(--shadow-sm);z-index:100;border-bottom:1px solid var(--border-color);position:sticky;top:0}.header-container{grid-template-columns:1fr auto 1fr;align-items:center;max-width:1400px;margin:0 auto;padding:15px 30px;display:grid}.header-left{display:flex}.header-center{justify-content:center;display:flex}.logo-img{max-width:130px;height:auto;display:block}.header-right{justify-content:flex-end;display:flex}.lang-switcher{border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-main);cursor:pointer;background-color:#f8f9fa;outline:none;padding:8px 12px;font-family:inherit;font-weight:600;transition:border-color .2s}.lang-switcher:focus{border-color:var(--primary-color)}.filters-container{flex-direction:column;gap:12px;max-width:760px;margin:0 auto 22px;display:flex;position:relative}.search-bar-wrapper{align-items:stretch;gap:12px;display:flex}.search-input{color:#f3ede2;background-color:#ffffff0f;border:1px solid #d4af3759;border-radius:30px;flex:1;padding:12px 22px;font-family:inherit;font-size:1rem;transition:all .3s}.search-input::placeholder{color:#f3ede273}.search-input:focus{border-color:var(--primary-color);background-color:#ffffff1a;outline:none;box-shadow:0 0 0 4px #d4af3726}.toggle-filters-btn{color:#f3ede2;cursor:pointer;background-color:#ffffff0f;border:1px solid #d4af3759;border-radius:30px;align-items:center;gap:8px;padding:0 22px;font-family:inherit;font-size:.95rem;font-weight:500;transition:all .3s;display:flex}.toggle-filters-btn:hover,.toggle-filters-btn.active{background-color:var(--primary-color);border-color:var(--primary-color);color:var(--leather)}.filters-card{background-color:var(--paper);border-radius:var(--radius-md);border:1px solid var(--rule);flex-wrap:wrap;gap:28px 40px;padding:22px 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.2s}.color-clear-btn.active,.color-clear-btn:hover{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.color-swatch-btn{cursor:pointer;border:2px solid #fff;border-radius:50%;width:32px;height:32px;transition:transform .2s,box-shadow .2s;box-shadow:0 2px 4px #00000026}.color-swatch-btn:hover{transform:scale(1.1)}.color-swatch-btn.active{box-shadow:0 0 0 2px var(--paper), 0 0 0 4px var(--primary-color);border-color:#0000;transform:scale(1.15)}.category-select{border:1px solid var(--rule);color:var(--ink);background-color:#fff;border-radius:6px;outline:none;padding:8px 12px;font-family:inherit;font-size:.95rem;transition:border-color .2s}.category-select:focus{border-color:var(--primary-color)}.error-state{text-align:center;color:#f0c9c9;padding:20px;font-size:1rem}.book-wrapper{flex-direction:column;align-items:center;gap:22px;margin-top:10px;display:flex}.book-stage{perspective:3200px;justify-content:center;align-items:center;width:100%;height:clamp(480px,100vh - 250px,800px);display:flex}.book{transform-style:preserve-3d;transition:transform .9s cubic-bezier(.4,0,.2,1);position:relative}.book:before{content:"";pointer-events:none;z-index:0;border-radius:4px;transition:left .9s cubic-bezier(.4,0,.2,1),right .9s cubic-bezier(.4,0,.2,1);position:absolute;inset:2% 0 0;box-shadow:0 30px 60px #0000008c,0 8px 16px #00000059}.book.spread.closed-front:before{left:50%}.book.spread.closed-back:before{right:50%}.stack{pointer-events:none;z-index:0;width:50%;height:100%;position:absolute;top:0}.book.single .stack{width:100%}.stack:before,.stack:after{content:"";background:var(--paper-deep);border:1px solid #0000000f;width:100%;position:absolute;top:0;bottom:0}.stack-right{right:0}.stack-right:before{transform:translate(3px,3px)}.stack-right:after{background:#e4dac6;width:calc(100% + 6px);left:-6px;transform:translate(6px,6px)}.stack-left{left:0}.stack-left:before{transform:translate(-3px,3px)}.stack-left:after{background:#e4dac6;width:calc(100% + 6px);transform:translate(-6px,6px)}.sheet{transform-origin:0;width:50%;height:100%;transform-style:preserve-3d;transition:transform .9s cubic-bezier(.45,.05,.25,1);position:absolute;top:0;right:0}.book.single .sheet{width:100%;transition-duration:.7s}.book.fast .sheet{transition-duration:.42s}.sheet.flipped{transform:rotateY(-180deg)}.face{backface-visibility:hidden;background:var(--paper);position:absolute;inset:0;overflow:hidden}.sheet.active .face{box-shadow:0 0 40px #00000073}.face.back{transform:rotateY(180deg)}.face.front:after,.face.back:after{content:"";pointer-events:none;z-index:3;width:10%;position:absolute;top:0;bottom:0}.face.front:after{background:linear-gradient(90deg,#3c28141f,#3c281408 50%,#0000);left:0}.face.back:after{background:linear-gradient(270deg,#3c28141f,#3c281408 50%,#0000);right:0}.book.single .face.front:after{background:linear-gradient(90deg,#3c281424,#0000);width:6%}.corner{cursor:pointer;z-index:4;background:0 0;border:none;width:72px;height:72px;padding:0;position:absolute;bottom:0}.corner:before{content:"";border-style:solid;width:0;height:0;transition:border-width .2s;position:absolute;bottom:0}.corner-right{right:0}.corner-left{left:0}.corner-right:before{border-width:0 0 18px 18px;border-color:transparent transparent var(--paper-deep) transparent;filter:drop-shadow(-2px -2px 2px #00000026);right:0}.corner-left:before{border-width:18px 0 0 18px;border-color:transparent transparent transparent var(--paper-deep);filter:drop-shadow(2px 2px 2px #00000026);left:0}.corner-right:hover:before{border-width:0 0 34px 34px}.corner-left:hover:before{border-width:34px 0 0 34px}.page{color:var(--ink);background:repeating-linear-gradient(0deg, #00000003 0 1px, transparent 1px 3px), var(--paper);flex-direction:column;padding:7% 8% 6%;display:flex;position:absolute;inset:0;container-type:inline-size}.page-paperback{background:var(--paper-deep)}.page-runhead{text-transform:uppercase;letter-spacing:.14em;color:var(--ink-soft);border-bottom:1px solid var(--rule);justify-content:space-between;gap:12px;margin-bottom:4%;padding-bottom:8px;font-size:clamp(.6rem,2.2cqw,.72rem);display:flex}.page-runhead 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6%;display:flex;position:relative}.cover-plate{background:var(--paper);border-radius:4px;max-width:62%;padding:4% 7%;box-shadow:inset 0 0 0 1px #00000014,0 6px 18px #0006}.cover-plate-sm{max-width:40%}.cover-logo{width:100%;height:auto;display:block}.cover-rule{background:linear-gradient(to right, transparent, var(--primary-color), transparent);width:34%;height:1px}.cover-title{font-family:var(--font-serif);letter-spacing:.02em;color:var(--gold-light);text-shadow:0 1px #0009;font-size:clamp(1.6rem,9.5cqw,3rem);font-weight:600;line-height:1.1}.cover-subtitle{text-transform:uppercase;letter-spacing:.32em;color:#e8cf7acc;font-size:clamp(.65rem,2.6cqw,.85rem)}.cover-year{font-family:var(--font-serif);letter-spacing:.2em;color:#e8cf7ab3;font-size:clamp(.8rem,3cqw,1rem)}.cover-hint,.cover-loading{letter-spacing:.15em;text-transform:uppercase;color:#e8cf7a80;font-size:clamp(.6rem,2.3cqw,.75rem);position:absolute;bottom:6%;left:0;right:0}.cover-loading{animation:1.4s ease-in-out infinite 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var(--rule);width:100%;min-height:0;margin-top:2%;padding-top:4%;list-style:none;overflow-y:auto}.chapter-index .toc-link{font-family:var(--font-sans);padding:5px 4px;font-size:clamp(.7rem,2.6cqw,.85rem)}.chapter-label{text-transform:uppercase;letter-spacing:.3em;color:var(--primary-dark);font-size:clamp(.65rem,2.6cqw,.85rem)}.chapter-title{font-family:var(--font-serif);padding:0 4%;font-size:clamp(1.6rem,9cqw,2.8rem);font-weight:600;line-height:1.15}.chapter-count{color:var(--ink-soft);font-size:clamp(.75rem,2.8cqw,.95rem);font-style:italic;font-family:var(--font-serif)}.page-category .page-folio{margin-top:auto}.product-figure{background:var(--paper-deep);width:100%;height:48%;min-height:0;box-shadow:inset 0 0 0 1px var(--rule);flex:none;margin-bottom:4%;padding:2.5%}.product-figure 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#00000026;border-radius:50%;flex-shrink:0;width:12px;height:12px;display:inline-block}.product-actions{justify-content:center;padding-top:5%;display:flex}.order-btn{background-color:var(--leather);color:var(--gold-light);border:1px solid var(--primary-color);letter-spacing:.18em;text-transform:uppercase;cursor:pointer;border-radius:2px;padding:10px 26px;font-size:clamp(.65rem,2.6cqw,.8rem);font-weight:600;transition:background-color .2s,color .2s,transform .2s}.order-btn:hover{background-color:var(--primary-color);color:var(--leather);transform:translateY(-2px)}.page-blank{justify-content:center;align-items:center}.blank-ornament{color:var(--rule);margin-top:auto;font-size:2rem}.book-controls{color:#f3ede2bf;letter-spacing:.06em;align-items:center;gap:18px;font-size:.85rem;display:flex}.nav-btn{width:44px;height:44px;color:var(--gold-light);cursor:pointer;background:#ffffff0d;border:1px solid #d4af3780;border-radius:50%;justify-content:center;align-items:center;transition:background-color .2s,color .2s,opacity .2s;display:flex}.nav-btn:hover:not(:disabled){background:var(--primary-color);color:var(--leather)}.nav-btn:disabled{opacity:.3;cursor:default}.page-counter{text-transform:uppercase;letter-spacing:.14em;white-space:nowrap;align-items:center;gap:10px;font-size:.72rem;display:flex}.counter-pages{color:#f3ede2}.counter-link{color:var(--gold-light);font:inherit;letter-spacing:inherit;text-transform:inherit;cursor:pointer;background:0 0;border:none;padding:0}.counter-link:hover{text-underline-offset:3px;text-decoration:underline}.counter-sep{opacity:.5}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background-color:#0009;justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:fixed;top:0;left:0}.modal-content{background-color:var(--paper);border:1px solid var(--rule);border-radius:6px;width:90%;max-width:500px;max-height:92vh;padding:40px;position:relative;overflow-y:auto;box-shadow:0 30px 60px #00000080}.modal-close{cursor:pointer;color:var(--ink-soft);background:0 0;border:none;font-size:1.5rem;position:absolute;top:20px;right:20px}.modal-title{font-family:var(--font-serif);color:var(--ink);margin-bottom:5px;font-size:1.6rem;font-weight:600}.modal-subtitle{color:var(--ink-soft);margin-bottom:25px;font-size:.95rem}.order-form .form-group{margin-bottom:20px}.form-row{gap:15px;display:flex}.form-row .form-group{flex:1}.order-form label{color:var(--ink);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;font-size:.8rem;font-weight:600;display:block}.order-form input,.order-form select{border:1px solid var(--rule);background:#fff;border-radius:4px;width:100%;padding:10px 14px;font-family:inherit;font-size:.95rem;transition:border-color .2s}.order-form input:focus,.order-form select:focus{border-color:var(--primary-color);outline:none}.submit-btn{background-color:var(--leather);width:100%;color:var(--gold-light);border:1px solid var(--primary-color);letter-spacing:.16em;text-transform:uppercase;cursor:pointer;border-radius:2px;margin-top:10px;padding:14px;font-size:.85rem;font-weight:600;transition:background-color .2s,color .2s}.submit-btn:disabled{opacity:.7;cursor:not-allowed}.submit-btn:hover:not(:disabled){background-color:var(--primary-color);color:var(--leather)}.alert-success{color:#0f5132;text-align:center;background-color:#d1e7dd;border-radius:4px;margin-bottom:20px;padding:15px;font-weight:600}.alert-error{color:#842029;background-color:#f8d7da;border-radius:4px;margin-bottom:20px;padding:15px;font-size:.9rem}@media (width<=576px){.catalogue-container{padding:16px 12px 32px}.search-input{padding:12px 16px;font-size:.95rem}.toggle-filters-btn{justify-content:center;padding:0 16px}.toggle-label{display:none}.book-stage{height:clamp(440px,100vh - 240px,700px)}.filters-card{gap:20px}.corner{width:56px;height:56px}.book-controls{gap:12px}.page-counter{letter-spacing:.1em;gap:7px;font-size:.62rem}.form-row{flex-direction:column;gap:0}.modal-content{padding:28px 22px}}