:root{--imtur-bg: #FFF6F0;--imtur-navy-dark: #0C155E;--imtur-navy-mid: #495087;--imtur-blue-dark: #1F4882;--imtur-blue-light: #62C6EA;--imtur-yellow-dark: #FFA726;--imtur-yellow-light: #FFD335;--imtur-orange-dark: #F74303;--surface-white: #FFFFFF;--surface-card: #FFFFFF;--text-primary: #0F172A;--text-secondary: #475569;--text-muted: #94A3B8;--border-subtle: #E2E8F0;--font-display: "Outfit", "Plus Jakarta Sans", system-ui, sans-serif;--font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--header-height: 64px;--toolbar-height: 56px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;height:100%;height:100dvh;overflow:hidden;background-color:var(--imtur-bg);color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-user-select:none;user-select:none}.btn-tactile{transition:transform .15s cubic-bezier(.16,1,.3,1),background-color .15s ease,border-color .15s ease,box-shadow .15s ease,opacity .15s ease;cursor:pointer}.btn-tactile:hover{transform:translateY(-1px)}.btn-tactile:active{transform:translateY(1px) scale(.97)}.btn-tactile:disabled{opacity:.35;pointer-events:none;cursor:not-allowed;transform:none}.viewer-app{display:flex;flex-direction:column;width:100vw;height:100vh;height:100dvh;position:relative;background:radial-gradient(circle at 50% 20%,#fffbf8,#fff2ea 60%,#fde9dc);overflow:hidden}.viewer-header{height:var(--header-height);width:100%;display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;background:#ffffffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(226,232,240,.8);z-index:40;flex-shrink:0}.brand-section{display:flex;align-items:center;gap:.85rem}.brand-logo-wrap{display:inline-flex;align-items:center;justify-content:center;height:40px;flex-shrink:0}.brand-logo-img{height:38px;max-height:100%;width:auto;object-fit:contain;display:block}.brand-title-wrap{display:flex;flex-direction:column}.brand-title{font-family:var(--font-display);font-size:.95rem;font-weight:800;color:var(--imtur-navy-dark);text-transform:uppercase;letter-spacing:.04em;line-height:1.2}.brand-subtitle{font-size:.72rem;color:var(--imtur-navy-mid);font-weight:600;letter-spacing:.02em}.header-actions{display:flex;align-items:center;gap:.5rem}.btn-header{display:inline-flex;align-items:center;gap:.45rem;padding:.45rem .9rem;border-radius:9999px;font-size:.8rem;font-weight:700;text-decoration:none;border:1px solid var(--border-subtle);background-color:#fff;color:var(--imtur-navy-dark);box-shadow:0 1px 3px #0000000a}.btn-header:hover{background-color:#f8fafc;border-color:#cbd5e1;color:var(--imtur-blue-dark)}#btn-help{padding:.45rem;width:32px;height:32px;justify-content:center;border-radius:50%}.viewer-stage{flex:1;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:1rem}.nav-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:#ffffffe6;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(226,232,240,.9);color:var(--imtur-navy-dark);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px -3px #0c155e1f,0 2px 6px -1px #0000000a;z-index:30}.nav-arrow svg{width:22px;height:22px;stroke-width:2.5}.nav-arrow:hover:not(:disabled){background:#fff;color:var(--imtur-blue-dark);box-shadow:0 10px 25px -4px #0c155e33;transform:translateY(-50%) scale(1.06)}.nav-arrow-prev{left:1.5rem}.nav-arrow-next{right:1.5rem}.viewer-toolbar-wrap{position:absolute;bottom:1.25rem;left:50%;transform:translate(-50%);z-index:35;pointer-events:none}.viewer-toolbar{pointer-events:auto;display:flex;align-items:center;gap:.25rem;padding:.35rem .6rem;background:var(--imtur-navy-dark);background:linear-gradient(135deg,#0c155e,#17247e);border-radius:9999px;box-shadow:0 12px 32px -4px #0c155e66,0 4px 12px #00000026;border:1px solid rgba(255,255,255,.15)}.toolbar-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:50%;color:#ffffffd9}.toolbar-btn svg{width:17px;height:17px}.toolbar-btn:hover:not(:disabled){background:#ffffff24;color:#fff}.toolbar-btn:active:not(:disabled){background:#ffffff38}.toolbar-separator{width:1px;height:20px;background:#ffffff2e;margin:0 .35rem}.page-indicator-wrap{display:flex;align-items:center;gap:.35rem;padding:0 .35rem;color:#fff;font-size:.8rem;font-weight:700;font-variant-numeric:tabular-nums}.page-input{width:38px;height:26px;background:#ffffff26;border:1px solid rgba(255,255,255,.25);border-radius:6px;color:#fff;font-family:inherit;font-size:.8rem;font-weight:700;text-align:center;outline:none;-moz-appearance:textfield}.page-input::-webkit-outer-spin-button,.page-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.page-input:focus{background:#ffffff40;border-color:var(--imtur-yellow-light)}#total-pages{opacity:.75;font-size:.75rem}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0c155e99;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:100;opacity:0;pointer-events:none;transition:opacity .25s ease;padding:1rem}.modal-overlay.active{opacity:1;pointer-events:auto}.modal-dialog{background:#fff;border-radius:20px;width:100%;max-width:440px;box-shadow:0 20px 40px -8px #0c155e40;overflow:hidden;border:1px solid rgba(255,255,255,.2);transform:translateY(10px) scale(.96);transition:transform .25s cubic-bezier(.16,1,.3,1)}.modal-overlay.active .modal-dialog{transform:translateY(0) scale(1)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.4rem;border-bottom:1px solid var(--border-subtle);background:#faf8f6}.modal-title{font-family:var(--font-display);font-size:1rem;font-weight:800;color:var(--imtur-navy-dark)}.btn-close-modal{background:transparent;border:none;cursor:pointer;color:var(--text-secondary);border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}.btn-close-modal:hover{background:#0000000f;color:var(--text-primary)}.shortcuts-list{padding:.8rem 1.4rem 1.2rem;display:flex;flex-direction:column;gap:.55rem}.shortcut-row{display:flex;align-items:center;justify-content:space-between;font-size:.82rem;color:var(--text-secondary);padding:.35rem 0;border-bottom:1px solid #F1F5F9}.shortcut-row:last-child{border-bottom:none}.kbd-badge{display:inline-block;padding:.15rem .45rem;font-family:monospace;font-size:.72rem;font-weight:700;color:var(--imtur-navy-dark);background:#f1f5f9;border:1px solid #CBD5E1;border-radius:5px;box-shadow:0 1px #94a3b8}@media (max-width: 768px){.viewer-header{padding:0 1rem}.brand-logo-wrap{height:32px}.brand-logo-img{height:30px}.brand-title{font-size:.82rem}.brand-subtitle,.btn-header span{display:none}.btn-header{padding:.45rem;width:32px;height:32px;justify-content:center}.nav-arrow{width:38px;height:38px}.nav-arrow-prev{left:.5rem}.nav-arrow-next{right:.5rem}.viewer-toolbar-wrap{bottom:.85rem}.toolbar-btn{width:32px;height:32px}.toolbar-btn svg{width:15px;height:15px}.page-input{width:32px;height:24px;font-size:.75rem}}.orientation-notice{display:none;position:absolute;top:calc(var(--header-height, 56px) + 8px);left:0;right:0;z-index:45;justify-content:center;padding:0 1rem;pointer-events:none;animation:fadeInDown .4s ease-out}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.orientation-notice.dismissed{display:none!important}@media (max-width: 900px) and (orientation: portrait){.orientation-notice:not(.dismissed){display:flex}}.orientation-content{pointer-events:auto;display:inline-flex;align-items:center;gap:.65rem;background:#0c155ef0;border:1px solid rgba(252,195,68,.45);box-shadow:0 8px 24px -4px #0c155e66,0 0 12px #fcc34433;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:.45rem .9rem;border-radius:9999px;max-width:100%}.icon-rotate{width:18px;height:18px;color:var(--imtur-yellow-light, #FCC344);flex-shrink:0;animation:rotate-phone 2.4s ease-in-out infinite}@keyframes rotate-phone{0%,15%{transform:rotate(0)}50%,65%{transform:rotate(90deg)}85%,to{transform:rotate(0)}}.notice-msg{font-size:.76rem;font-weight:500;color:#f8fafc;line-height:1.25}.notice-msg strong{color:var(--imtur-yellow-light, #FCC344);font-weight:700}.btn-close-notice{background:#ffffff26;border:none;color:#fff;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;cursor:pointer;flex-shrink:0;transition:background .15s}.btn-close-notice:hover{background:#ffffff4d}@media (max-height: 520px) and (orientation: landscape){:root{--header-height: 38px;--toolbar-height: 36px}.viewer-header{height:38px;padding:0 .85rem}.brand-logo-wrap{height:28px}.brand-logo-img{height:26px}.brand-title{font-size:.78rem}.brand-subtitle{display:none}.btn-header{width:28px;height:28px;padding:.3rem}.btn-header span{display:none}.viewer-toolbar-wrap{bottom:.35rem}.viewer-toolbar{height:36px;padding:.2rem .5rem;gap:.35rem}.toolbar-btn{width:28px;height:28px;border-radius:6px}.toolbar-btn svg{width:14px;height:14px}.toolbar-separator{height:16px;margin:0 .2rem}.page-indicator-wrap{font-size:.72rem;gap:.25rem;padding:0 .2rem}.page-input{width:28px;height:22px;font-size:.72rem}.nav-arrow{width:32px;height:32px}.nav-arrow svg{width:16px;height:16px}.nav-arrow-prev{left:.35rem}.nav-arrow-next{right:.35rem}}.flipbook-zoom-container{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center;overflow:visible;touch-action:pan-x pan-y}#flipbook-aligner{position:relative;display:flex;align-items:center;justify-content:center;transition:transform .4s cubic-bezier(.2,0,0,1);will-change:transform}#flipbook{position:relative;background-color:transparent!important;border-radius:4px}.turn-page-wrapper{background-color:transparent!important}#flipbook.on-cover{box-shadow:none!important}#flipbook.on-cover:before{content:"";position:absolute;top:0;left:50%;width:50%;height:100%;border-radius:4px;box-shadow:0 16px 48px -8px #0c155e40,0 6px 20px -4px #0000001a;pointer-events:none;z-index:10}#flipbook.on-cover:after{content:"";position:absolute;bottom:-18px;left:52%;width:46%;height:24px;background:radial-gradient(ellipse at 50% 50%,rgba(12,21,94,.3) 0%,rgba(12,21,94,.05) 50%,transparent 80%);filter:blur(8px);z-index:-1;pointer-events:none}#flipbook.on-back-cover{box-shadow:none!important}#flipbook.on-back-cover:before{content:"";position:absolute;top:0;left:0;width:50%;height:100%;border-radius:4px;box-shadow:0 16px 48px -8px #0c155e40,0 6px 20px -4px #0000001a;pointer-events:none;z-index:10}#flipbook.on-back-cover:after{content:"";position:absolute;bottom:-18px;left:2%;width:46%;height:24px;background:radial-gradient(ellipse at 50% 50%,rgba(12,21,94,.3) 0%,rgba(12,21,94,.05) 50%,transparent 80%);filter:blur(8px);z-index:-1;pointer-events:none}#flipbook.on-spread{box-shadow:0 16px 48px -8px #0c155e40,0 6px 20px -4px #0000001a}#flipbook.on-spread:before{display:none!important}#flipbook.on-spread:after{content:"";position:absolute;bottom:-18px;left:3%;right:3%;height:24px;background:radial-gradient(ellipse at 50% 50%,rgba(12,21,94,.3) 0%,rgba(12,21,94,.05) 50%,transparent 80%);filter:blur(8px);z-index:-1;pointer-events:none}#flipbook.is-single{box-shadow:0 16px 48px -8px #0c155e40,0 6px 20px -4px #0000001a}#flipbook.is-single:before{display:none!important}#flipbook.is-single:after{content:"";position:absolute;bottom:-18px;left:3%;right:3%;height:24px;background:radial-gradient(ellipse at 50% 50%,rgba(12,21,94,.3) 0%,rgba(12,21,94,.05) 50%,transparent 80%);filter:blur(8px);z-index:-1;pointer-events:none}.flipbook-page{width:100%;height:100%;position:relative;background-color:#fff;overflow:hidden;box-shadow:inset 0 0 1px #0000001a}.page-canvas{width:100%;height:100%;display:block;object-fit:fill;pointer-events:none}.flipbook-page.even:after{content:"";position:absolute;top:0;bottom:0;right:0;width:32px;background:linear-gradient(to left,rgba(0,0,0,.14) 0%,rgba(0,0,0,.06) 25%,rgba(0,0,0,.02) 60%,transparent 100%);pointer-events:none;z-index:5}.flipbook-page.odd:after{content:"";position:absolute;top:0;bottom:0;left:0;width:32px;background:linear-gradient(to right,rgba(0,0,0,.18) 0%,rgba(0,0,0,.08) 25%,rgba(0,0,0,.02) 60%,transparent 100%);pointer-events:none;z-index:5}.flipbook-page[data-page="1"]:after,.flipbook-page.hard-cover:after{display:none!important}.page-loading-skeleton{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#fdfbf9;color:var(--imtur-navy-mid);gap:.75rem;z-index:2;transition:opacity .25s ease}.page-loading-skeleton.hidden{opacity:0;pointer-events:none}.spinner-imtur{width:28px;height:28px;border:3px solid rgba(31,72,130,.15);border-top-color:var(--imtur-blue-dark);border-radius:50%;animation:spin-imtur .8s linear infinite}@keyframes spin-imtur{to{transform:rotate(360deg)}}.page-num-placeholder{font-size:.75rem;font-weight:700;letter-spacing:.05em;opacity:.6}.is-zoomed{cursor:grab}.is-zoomed.is-panning{cursor:grabbing}