/* IEI TNSC Digital Library V8.31 */
:root{--lib-navy:#071f46;--lib-blue:#0b326b;--lib-cobalt:#1454a3;--lib-gold:#d7a323;--lib-gold-soft:#f3d77c;--lib-ink:#101828;--lib-muted:#667085;--lib-bg:#f5f7fb;--lib-card:#fff;--lib-line:#dfe6f0;--lib-free:#0f8f61;--lib-paid:#9a5a00;--lib-shadow:0 22px 60px rgba(7,31,70,.14)}
.lib-hero{position:relative;overflow:hidden;padding:clamp(42px,7vw,88px) clamp(22px,6vw,84px) 34px;background:radial-gradient(circle at 78% 26%,rgba(215,163,35,.28),transparent 24%),radial-gradient(circle at 8% 92%,rgba(62,126,203,.28),transparent 28%),linear-gradient(135deg,#061a3b,#0b326b 56%,#0a4b82);color:#fff;min-height:510px;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:40px;align-items:center}
.lib-hero:before,.lib-hero:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.14);border-radius:50%;width:480px;height:480px;right:-180px;top:-210px}.lib-hero:after{width:620px;height:620px;right:-250px;top:-280px}.lib-hero-copy,.lib-hero-visual,.lib-hero-stats{position:relative;z-index:1}.lib-hero-copy h2{font-size:clamp(2.5rem,5.2vw,5rem);line-height:.96;letter-spacing:-.055em;margin:.2em 0 .28em;color:#fff;max-width:720px}.lib-hero-copy p{max-width:680px;color:rgba(255,255,255,.82);font-size:1.05rem;line-height:1.75}.lib-hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.lib-hero .btn-outline{border-color:rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.05)}
.lib-hero-visual{height:330px;perspective:1300px}.lib-floating-book{position:absolute;width:210px;height:290px;border-radius:12px 24px 24px 12px;padding:28px 22px;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 28px 60px rgba(0,0,0,.35);transform-style:preserve-3d}.lib-floating-book:before{content:"";position:absolute;left:8px;top:10px;bottom:10px;width:8px;border-radius:4px;background:rgba(255,255,255,.18)}.lib-floating-book:after{content:"";position:absolute;right:-14px;top:12px;bottom:10px;width:18px;border-radius:0 8px 8px 0;background:linear-gradient(90deg,#f7efd6,#d9c99d);transform:rotateY(68deg);transform-origin:left}.lib-floating-book span{font-size:.72rem;letter-spacing:.2em;opacity:.72}.lib-floating-book b{font-size:1.45rem;line-height:1.1;margin-top:8px}.book-a{left:14%;top:12px;background:linear-gradient(145deg,#d9aa2d,#8d5f00);transform:rotateY(-22deg) rotateZ(-7deg);animation:libFloatA 5.6s ease-in-out infinite}.book-b{right:12%;top:44px;background:linear-gradient(145deg,#1e5ca2,#071f46);transform:rotateY(18deg) rotateZ(7deg);animation:libFloatB 6.4s ease-in-out infinite}.lib-orbit{position:absolute;inset:auto 37% 32px auto;font-size:4rem;color:rgba(255,255,255,.18);font-weight:900;animation:libPulse 3.2s ease-in-out infinite}@keyframes libFloatA{50%{transform:translateY(-14px) rotateY(-19deg) rotateZ(-5deg)}}@keyframes libFloatB{50%{transform:translateY(14px) rotateY(16deg) rotateZ(5deg)}}@keyframes libPulse{50%{transform:scale(1.14);opacity:.55}}
.lib-hero-stats{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.14);border-radius:18px;overflow:hidden}.lib-hero-stats div{padding:20px 24px;background:rgba(4,20,49,.28);backdrop-filter:blur(12px)}.lib-hero-stats b{display:block;font-size:1.6rem;color:#fff}.lib-hero-stats span{color:rgba(255,255,255,.68);font-size:.84rem}
.lib-featured-section,.lib-catalog-shell{padding:58px clamp(18px,5vw,72px)}.lib-featured-section{background:linear-gradient(180deg,#fff,#f7f9fc)}.lib-section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:24px}.lib-section-head h2{font-size:clamp(1.8rem,3vw,2.8rem);margin:.15em 0}.lib-section-head p{color:var(--lib-muted);margin:0}.lib-featured-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(230px,280px);gap:20px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x proximity}.lib-featured-track>.lib-book-card{scroll-snap-align:start}
.lib-filter-bar{display:grid;grid-template-columns:minmax(260px,2fr) repeat(4,minmax(135px,1fr)) auto;gap:10px;background:#fff;border:1px solid var(--lib-line);border-radius:18px;padding:12px;box-shadow:0 10px 28px rgba(7,31,70,.08);position:sticky;top:12px;z-index:8;margin-bottom:28px}.lib-filter-bar input,.lib-filter-bar select{width:100%;height:46px;border:1px solid #dbe2ec;border-radius:11px;background:#f9fbfd;padding:0 12px;color:var(--lib-ink)}.lib-search-field{position:relative}.lib-search-field span{position:absolute;left:14px;top:10px;font-size:1.2rem;color:#667085}.lib-search-field input{padding-left:38px}.lib-filter-bar .btn{height:46px}
.lib-book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:24px}.lib-book-card{background:#fff;border:1px solid var(--lib-line);border-radius:20px;overflow:hidden;box-shadow:0 12px 34px rgba(7,31,70,.08);transition:.28s ease;min-width:0}.lib-book-card:hover{transform:translateY(-7px);box-shadow:0 24px 50px rgba(7,31,70,.16);border-color:#c5d4e7}.lib-cover-wrap{position:relative;display:block;background:linear-gradient(145deg,#eaf0f7,#d9e3ef);aspect-ratio:4/5.6;padding:18px}.library-cover{width:100%;height:100%;object-fit:cover;border-radius:8px 16px 16px 8px;box-shadow:0 14px 30px rgba(11,50,107,.22);display:block}.library-cover-placeholder{background:linear-gradient(145deg,#0b326b,#071f46 68%,#d7a323);color:white;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;padding:22px;box-sizing:border-box}.library-cover-placeholder span{font-size:.72rem;letter-spacing:.18em;color:var(--lib-gold-soft)}.library-cover-placeholder b{font-size:2.4rem;margin:.15em 0}.library-cover-placeholder small{opacity:.72}.lib-access-pill,.lib-featured-pill{position:absolute;z-index:2;border-radius:999px;font-size:.72rem;font-weight:800;padding:7px 10px;box-shadow:0 5px 12px rgba(0,0,0,.12)}.lib-access-pill{left:12px;bottom:12px;color:white}.lib-access-pill.is-free{background:var(--lib-free)}.lib-access-pill.is-paid{background:#9a5a00}.lib-featured-pill{right:12px;top:12px;background:linear-gradient(135deg,#f4da81,#d7a323);color:#3c2b00}.lib-book-copy{padding:18px}.lib-category{display:inline-flex;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;font-weight:800;color:#24538b}.lib-book-copy h3{font-size:1.08rem;line-height:1.35;margin:8px 0 5px}.lib-book-copy h3 a{color:var(--lib-ink);text-decoration:none}.lib-author{margin:0;color:var(--lib-muted);font-size:.88rem}.lib-card-actions{margin-top:15px}.lib-mini-progress,.lib-my-progress>span{height:6px;background:#e9eef5;border-radius:99px;display:block;overflow:hidden;margin-top:12px}.lib-mini-progress i,.lib-my-progress i{height:100%;display:block;background:linear-gradient(90deg,#0b326b,#d7a323);border-radius:inherit}.lib-book-copy>small{color:#667085;font-size:.72rem}.lib-empty{padding:55px}
.lib-detail-hero{padding:60px clamp(20px,6vw,86px);background:radial-gradient(circle at 8% 12%,rgba(215,163,35,.18),transparent 26%),linear-gradient(135deg,#f8fafc,#edf3fa);display:grid;grid-template-columns:minmax(220px,340px) minmax(0,1fr);gap:clamp(36px,7vw,92px);align-items:center}.lib-detail-cover{position:relative;perspective:900px}.library-cover-large{aspect-ratio:4/5.6;transform:rotateY(6deg) rotateZ(-1deg);box-shadow:0 30px 60px rgba(7,31,70,.25)}.lib-cover-glow{position:absolute;inset:20% -14% -9%;background:radial-gradient(ellipse,rgba(215,163,35,.28),transparent 68%);filter:blur(20px);z-index:-1}.lib-detail-chips{display:flex;gap:8px;flex-wrap:wrap}.lib-detail-chips span{background:#e3ebf6;color:#123d72;border-radius:999px;padding:6px 10px;font-size:.74rem;font-weight:700}.lib-detail-copy h2{font-size:clamp(2.2rem,4.5vw,4.5rem);line-height:1;letter-spacing:-.045em;margin:.25em 0;color:#0d2343}.lib-detail-copy h3{font-weight:500;color:#53657a;margin:-.3em 0 1em}.lib-detail-author{font-size:1.03rem;color:#526275}.lib-detail-price{display:flex;align-items:center;gap:12px;margin:22px 0}.lib-price-badge{font-size:1.2rem;font-weight:900;border-radius:10px;padding:10px 14px}.lib-price-badge.is-free{background:#dff5ec;color:#08704c}.lib-price-badge.is-paid{background:#fff0c5;color:#704900}.lib-detail-price small{color:#667085}.lib-description{max-width:820px;line-height:1.8;color:#475467}.lib-detail-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:24px}.lib-detail-actions form{margin:0}.lib-read-cta span{font-size:1.2rem}.lib-download-link{display:inline-block;margin-top:14px;color:#24538b;font-weight:700}.lib-detail-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:22px;padding:28px clamp(20px,6vw,86px) 70px}.lib-meta-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}.lib-meta-grid div{padding:16px;background:#f8fafc;border:1px solid #e4e9f0;border-radius:13px}.lib-meta-grid small,.lib-meta-grid b{display:block}.lib-meta-grid small{color:#667085;margin-bottom:5px}.lib-reader-features ul{padding-left:18px;line-height:2;color:#475467}
.lib-my-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:18px}.lib-my-card{display:grid;grid-template-columns:115px 1fr;gap:18px;background:#fff;border:1px solid var(--lib-line);border-radius:18px;padding:15px;box-shadow:0 12px 30px rgba(7,31,70,.07)}.lib-my-cover .library-cover{aspect-ratio:4/5.6}.lib-my-copy h3{margin:7px 0 4px}.lib-my-copy p{margin:0;color:#667085}.lib-my-progress small{display:block;color:#667085;margin-top:5px}.lib-my-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:15px}.lib-my-actions form{margin:0}.lib-checkout-price{font-size:1.8rem;font-weight:900;color:#0b326b}.lib-payment-grid{margin-top:20px}
.lib-admin-stats{grid-template-columns:repeat(5,1fr)}.lib-admin-tabs{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0}.lib-admin-tabs a{padding:8px 13px;border:1px solid #dbe3ee;border-radius:999px;text-decoration:none;color:#475467;background:white;font-size:.82rem;font-weight:700}.lib-admin-tabs a.active{background:#0b326b;color:white;border-color:#0b326b}.lib-admin-book-cell{display:flex;align-items:center;gap:12px;min-width:260px}.lib-admin-book-cell .library-cover{width:48px;height:66px;flex:0 0 48px}.lib-admin-book-cell div{display:flex;flex-direction:column;gap:3px}.lib-admin-book-cell small,table td small{display:block;color:#667085;margin-top:3px}.lib-admin-form{display:grid;gap:18px}.lib-admin-form-section{padding:24px}.lib-form-heading{display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}.lib-form-heading>span{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:#0b326b;color:#fff;font-weight:800}.lib-form-heading h3{margin:0}.lib-form-heading p{margin:4px 0 0;color:#667085}.lib-admin-form label{display:grid;gap:6px;font-weight:700;color:#344054}.lib-admin-form label input,.lib-admin-form label select,.lib-admin-form label textarea{font-weight:400}.lib-upload-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.lib-upload-box{border:1.5px dashed #c8d5e5;border-radius:16px;padding:18px;background:#f9fbfd;align-content:start}.lib-upload-box>span{color:#667085;font-size:.8rem;font-weight:400}.lib-upload-box input[type=file]{margin-top:12px;width:100%}.lib-upload-current{width:92px;margin-top:12px}.lib-upload-current .library-cover{aspect-ratio:4/5.6}.lib-upload-current small{font-weight:400}.lib-file-current{background:#eaf6f1;color:#08704c;border-radius:10px;padding:10px;margin-top:12px;font-size:.82rem}.inline-check{display:flex!important;grid-template-columns:auto 1fr;align-items:center;margin-top:8px;font-size:.8rem}.lib-toggle-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}.lib-switch-row,.lib-rights-confirm{display:flex!important;grid-template-columns:auto 1fr!important;align-items:flex-start!important;gap:12px!important;padding:16px;border:1px solid #dfe6ef;border-radius:14px;background:#f9fbfd}.lib-switch-row input,.lib-rights-confirm input{margin-top:4px}.lib-switch-row span,.lib-rights-confirm span{display:grid;gap:3px}.lib-switch-row small,.lib-rights-confirm small{font-weight:400;color:#667085}.lib-rights-panel{border-color:#eedda9;background:linear-gradient(180deg,#fffdf6,#fff)}.lib-rights-confirm{margin-top:14px;background:#fff7db;border-color:#ead28a}.lib-admin-form-actions{display:flex;gap:10px;justify-content:flex-end}.lib-order-actions{display:grid;gap:7px;min-width:240px}.lib-order-actions form{display:flex;gap:6px}.lib-order-actions input{min-width:130px;padding:7px 9px;border:1px solid #dbe3ee;border-radius:8px}
/* Flipbook reader */
.library-reader-shell{position:relative;background:#071526;color:#e7edf6;border-radius:22px;overflow:hidden;min-height:calc(100vh - 170px);box-shadow:0 22px 70px rgba(0,0,0,.25)}.library-reader-shell.reader-night{background:#020812}.lib-reader-topbar,.lib-reader-controls{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 18px;background:rgba(5,16,34,.94);border-bottom:1px solid rgba(255,255,255,.08)}.lib-reader-back{color:#e7edf6;text-decoration:none;font-weight:700;display:flex;gap:8px}.lib-reader-title{text-align:center;display:grid}.lib-reader-title b{max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lib-reader-title small{color:#8ea2bd}.lib-reader-top-actions{display:flex;gap:7px}.lib-reader-top-actions button,.lib-reader-controls button{border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.05);color:white;border-radius:9px;height:38px;min-width:38px;cursor:pointer}.lib-reader-workspace{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 298px)}.lib-reader-side{padding:20px;border-right:1px solid rgba(255,255,255,.08);background:rgba(1,8,19,.46);display:flex;flex-direction:column;gap:8px}.lib-reader-cover-mini{width:110px;align-self:center;margin-bottom:8px}.lib-reader-cover-mini .library-cover{aspect-ratio:4/5.6}.lib-reader-side>b{font-size:.93rem}.lib-reader-side>small{color:#93a4ba}.lib-reader-side-progress{margin:12px 0}.lib-reader-side-progress>span{display:block;height:7px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden}.lib-reader-side-progress i{height:100%;width:0;display:block;background:linear-gradient(90deg,#d7a323,#f5da7c)}.lib-reader-side-progress small{display:block;color:#9badc4;margin-top:6px}.lib-reader-shortcuts{margin-top:auto;display:grid;gap:5px;color:#8fa2ba;font-size:.76rem}.lib-reader-shortcuts small{font-weight:800;color:#d7a323;text-transform:uppercase;letter-spacing:.08em}.lib-reader-stage{position:relative;display:grid;place-items:center;overflow:auto;background:radial-gradient(circle at 50% 38%,#173452,#081627 62%,#040b14);min-height:560px;padding:32px 62px}.reader-night .lib-reader-stage{background:radial-gradient(circle at 50% 35%,#101821,#03070c 70%)}.lib-reader-loading{display:grid;place-items:center;gap:10px;color:#d8e2ef}.lib-reader-loading small{color:#8fa2ba}.lib-reader-spinner{width:42px;height:42px;border:4px solid rgba(255,255,255,.12);border-top-color:#d7a323;border-radius:50%;animation:libSpin .8s linear infinite}@keyframes libSpin{to{transform:rotate(360deg)}}
.lib-reader-book{position:relative;display:grid;grid-template-columns:1fr 8px 1fr;align-items:center;justify-items:center;max-width:100%;max-height:100%;filter:drop-shadow(0 30px 45px rgba(0,0,0,.45));perspective:1800px}.lib-reader-page{position:relative;background:#fff;overflow:hidden;display:grid;place-items:center;transform-style:preserve-3d}.lib-reader-page.left{border-radius:8px 2px 2px 8px;box-shadow:inset -22px 0 30px rgba(20,26,34,.08)}.lib-reader-page.right{border-radius:2px 8px 8px 2px;box-shadow:inset 22px 0 30px rgba(20,26,34,.07)}.lib-reader-page canvas{display:block;max-width:100%;max-height:100%}.lib-reader-spine{height:96%;width:8px;background:linear-gradient(90deg,rgba(0,0,0,.35),rgba(255,255,255,.25),rgba(0,0,0,.3));z-index:3}.lib-page-number{position:absolute;bottom:7px;color:#54606f;background:rgba(255,255,255,.82);border-radius:99px;padding:2px 7px;font-size:.68rem}.left .lib-page-number{left:9px}.right .lib-page-number{right:9px}.lib-page-flip{position:absolute;top:0;right:0;width:calc(50% - 4px);height:100%;transform-origin:left center;transform-style:preserve-3d;pointer-events:none;visibility:hidden;z-index:8}.lib-page-flip-front,.lib-page-flip-back{position:absolute;inset:0;backface-visibility:hidden;background-size:contain;background-position:center;background-repeat:no-repeat;background-color:white}.lib-page-flip-back{transform:rotateY(180deg);filter:brightness(.93)}.lib-page-flip.flip-next{visibility:visible;animation:libFlipNext .42s cubic-bezier(.4,.05,.2,1)}.lib-page-flip.flip-prev{visibility:visible;right:auto;left:0;transform-origin:right center;animation:libFlipPrev .42s cubic-bezier(.4,.05,.2,1)}@keyframes libFlipNext{0%{transform:rotateY(0)}100%{transform:rotateY(-180deg)}}@keyframes libFlipPrev{0%{transform:rotateY(0)}100%{transform:rotateY(180deg)}}
.lib-turn-button{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:70px;border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.28);color:white;border-radius:14px;font-size:2.3rem;cursor:pointer;z-index:12;backdrop-filter:blur(6px)}.lib-turn-button.prev{left:12px}.lib-turn-button.next{right:12px}.lib-turn-button:disabled{opacity:.2;cursor:not-allowed}.lib-reader-controls{border-top:1px solid rgba(255,255,255,.08);border-bottom:0}.lib-reader-page-jump,.lib-reader-zoom{display:flex;align-items:center;gap:7px}.lib-reader-page-jump label{display:flex;align-items:center;gap:5px;color:#9eb0c6;font-size:.8rem}.lib-reader-page-jump input{width:64px;height:36px;border-radius:8px;border:1px solid rgba(255,255,255,.14);background:#0d1e34;color:white;text-align:center}.lib-reader-zoom span{min-width:48px;text-align:center;font-size:.8rem;color:#9eb0c6}.library-reader-shell:fullscreen{border-radius:0;min-height:100vh}.library-reader-shell:fullscreen .lib-reader-workspace{min-height:calc(100vh - 128px)}.library-reader-shell:fullscreen .lib-reader-stage{min-height:calc(100vh - 128px)}
@media(max-width:1100px){.lib-filter-bar{grid-template-columns:2fr repeat(2,1fr);position:relative;top:auto}.lib-filter-bar .btn{grid-column:auto}.lib-admin-stats{grid-template-columns:repeat(3,1fr)}.lib-upload-grid{grid-template-columns:1fr}.lib-reader-workspace{grid-template-columns:1fr}.lib-reader-side{display:none}.lib-reader-stage{min-height:600px}.lib-reader-title b{max-width:300px}}
@media(max-width:820px){.lib-hero{grid-template-columns:1fr;min-height:auto;padding-top:46px}.lib-hero-visual{height:280px}.lib-hero-stats{grid-template-columns:repeat(2,1fr)}.lib-filter-bar{grid-template-columns:1fr}.lib-detail-hero{grid-template-columns:1fr}.lib-detail-cover{max-width:250px;margin:auto}.lib-detail-copy{text-align:left}.lib-detail-grid{grid-template-columns:1fr}.lib-meta-grid{grid-template-columns:repeat(2,1fr)}.lib-my-grid{grid-template-columns:1fr}.lib-admin-stats{grid-template-columns:repeat(2,1fr)}.lib-toggle-grid{grid-template-columns:1fr}.lib-reader-stage{padding:22px 52px;min-height:520px}.lib-reader-book{grid-template-columns:1fr}.lib-reader-page.left{display:none}.lib-reader-spine{display:none}.lib-reader-page.right{border-radius:8px;box-shadow:none}.lib-page-flip{width:100%;right:0}.lib-reader-controls{height:auto;min-height:64px;flex-wrap:wrap;padding:10px}.lib-reader-title{max-width:46vw}.lib-reader-title b{max-width:100%}.lib-reader-back span{display:none}}
@media(max-width:560px){.lib-hero-copy h2{font-size:2.65rem}.lib-hero-visual{height:235px}.lib-floating-book{width:150px;height:210px;padding:20px 16px}.lib-floating-book b{font-size:1rem}.lib-hero-stats div{padding:15px}.lib-featured-section,.lib-catalog-shell{padding-left:14px;padding-right:14px}.lib-book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.lib-cover-wrap{padding:10px}.lib-book-copy{padding:12px}.lib-book-copy h3{font-size:.92rem}.lib-author{font-size:.76rem}.lib-detail-hero{padding-left:18px;padding-right:18px}.lib-detail-copy h2{font-size:2.35rem}.lib-meta-grid{grid-template-columns:1fr}.lib-my-card{grid-template-columns:90px 1fr;gap:12px}.lib-reader-topbar{padding:0 10px}.lib-reader-top-actions button{min-width:34px}.lib-reader-stage{padding:16px 42px;min-height:470px}.lib-turn-button{width:36px;height:58px}.lib-reader-page-jump button:first-child,.lib-reader-page-jump button:last-child,.lib-reader-zoom{display:none}.lib-reader-controls .btn{font-size:.72rem}.lib-admin-stats{grid-template-columns:1fr 1fr}}