/* --- Styles for the Library Feature --- */
.library-hero{position:relative;overflow:hidden;display:flex;justify-content:space-between;align-items:center;gap:30px;margin:-5px 0 24px;padding:30px 34px;border-radius:20px;color:#fff;background:linear-gradient(125deg,#0f172a 0%,#1d4ed8 60%,#14b8a6 130%);box-shadow:0 18px 45px rgba(30,64,175,.22)}.library-hero:after{content:"";position:absolute;width:260px;height:260px;right:-70px;top:-130px;border:45px solid rgba(255,255,255,.08);border-radius:50%}.library-hero>div{position:relative;z-index:1}.library-eyebrow{display:block;margin-bottom:8px;font-size:11px;font-weight:700;letter-spacing:.16em;color:#99f6e4}.library-hero h2{margin:0 0 8px;font-size:clamp(23px,3vw,34px);line-height:1.25}.library-hero p{max-width:650px;margin:0;color:#dbeafe}.library-hero-stats{display:flex;gap:12px;flex-shrink:0}.library-hero-stats>div{min-width:92px;padding:14px;text-align:center;border:1px solid rgba(255,255,255,.2);border-radius:14px;background:rgba(255,255,255,.1);backdrop-filter:blur(8px)}.library-hero-stats strong,.library-hero-stats span{display:block}.library-hero-stats strong{font-size:25px}.library-hero-stats span{font-size:12px;color:#dbeafe}
.library-catalog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.library-type-tabs{display:flex;gap:10px}.library-type-tabs span{margin-left:5px;padding:1px 7px;border-radius:999px;background:rgba(255,255,255,.2)}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:24px}.library-item{background:var(--card-bg,#fff);border:1px solid rgba(148,163,184,.28);border-radius:14px;overflow:hidden;cursor:pointer;transition:.25s;box-shadow:0 8px 20px rgba(15,23,42,.07)}.library-item:hover{transform:translateY(-5px);box-shadow:0 15px 32px rgba(15,23,42,.15)}.library-cover{height:270px;position:relative;background:#e2e8f0;perspective:900px}.library-cover img{width:100%;height:100%;object-fit:cover;transform-origin:left;transition:transform .45s}.library-item:hover .library-cover.pdf img{transform:rotateY(-12deg)}.library-cover.video{height:150px;background:#0f172a}.media-kind{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:28px;text-shadow:0 2px 8px #000}.media-kind i{padding:17px;border-radius:50%;background:rgba(15,23,42,.65)}.library-item-body{padding:15px}.library-item-body h3{font-size:17px;margin:8px 0}.library-item-body p{font-size:13px;color:var(--text-muted);height:40px;overflow:hidden}.media-label{font-size:11px;font-weight:700;color:#2563eb}.library-item .book-progress{position:static;height:6px;margin:12px 0 5px}.library-item small{position:static;color:var(--text-muted)}
.library-reader{position:fixed;inset:0;z-index:3000;background:radial-gradient(circle at 50% 34%,#475569 0%,#172033 45%,#020617 100%);display:flex;flex-direction:column}.library-reader.hidden{display:none}.reader-toolbar{min-height:64px;padding:10px 18px;background:rgba(2,6,23,.92);border-bottom:1px solid rgba(255,255,255,.09);box-shadow:0 8px 24px rgba(0,0,0,.2);backdrop-filter:blur(14px);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:15px}.reader-toolbar>strong{max-width:40%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-tabs{display:flex;align-items:center;gap:10px;padding:4px 7px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(255,255,255,.06)}.reader-tabs input{width:65px;padding:7px;border-radius:7px;border:1px solid rgba(255,255,255,.15);background:#fff;text-align:center}.reader-status{min-width:min(420px,90vw);padding:34px;text-align:center;color:#e2e8f0;border:1px solid rgba(255,255,255,.12);border-radius:20px;background:rgba(15,23,42,.76);box-shadow:0 24px 70px rgba(0,0,0,.35);backdrop-filter:blur(16px)}.reader-status .loader{width:38px;height:38px;margin:0 auto 20px;border-color:rgba(255,255,255,.18);border-top-color:#5eead4}.reader-status strong{display:block;font-size:18px}.reader-status p{max-width:420px;margin:9px auto 20px;color:#aebed1;line-height:1.55}.reader-status-icon{margin-bottom:14px;color:#fbbf24;font-size:38px}.reader-status .btn{margin-top:4px}#media-video{width:100%;height:calc(100vh - 60px);background:#000}
@media(max-width:700px){.library-catalog-toolbar{align-items:stretch;flex-direction:column}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.library-cover{height:210px}.reader-toolbar{flex-wrap:wrap;padding:8px 10px}.reader-toolbar>strong{max-width:100%;width:100%;text-align:center}.reader-tabs{order:3;width:100%;justify-content:center}.reader-status{padding:24px 18px}}

/* Bookshelf Container */
.bookshelf {
    display: block;
    padding: 8px 0 24px;
}

/* Individual Book Styling */
.book {
    width: 180px;
    height: 240px;
    position: relative;
    transform-style: preserve-3d;
    transform: rotateY(-30deg);
    transition: transform 0.5s ease;
    cursor: pointer;
}

.book:hover {
    transform: rotateY(0deg) scale(1.05);
}

/* Book Cover Image */
.book img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 2px 4px 4px 2px;
    box-shadow: 
        inset 4px 0 10px -2px rgba(0,0,0,0.3), /* Inner spine shadow */
        -10px 10px 15px -5px rgba(0,0,0,0.4); /* Drop shadow */
}

/* Book Title on the Shelf */
.book-title {
    position: absolute;
    bottom: -30px;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.book-progress{position:absolute;left:0;right:0;bottom:-51px;height:6px;border-radius:4px;background:rgba(128,128,128,.25);overflow:hidden}.book-progress span{display:block;height:100%;background:var(--primary-color);border-radius:4px}.book>small{position:absolute;right:0;bottom:-70px;color:var(--text-muted)}.certificate-verification{text-align:center;padding:25px}.certificate-verification>i{font-size:64px;margin-bottom:15px}.certificate-verification.valid>i{color:#28a745}.certificate-verification.invalid>i{color:#dc3545}.certificate-verification .btn{margin-top:20px}
.library-item .book-progress{position:static;inset:auto;height:7px;margin:13px 0 6px;background:#e2e8f0}.library-item .book-progress span{background:linear-gradient(90deg,#2563eb,#14b8a6)}.library-item>small,.library-item small{position:static}.reader-toolbar .btn{border-color:rgba(255,255,255,.22);color:#fff;background:rgba(255,255,255,.08)}.reader-toolbar .btn:hover{background:rgba(255,255,255,.18)}
@media(max-width:700px){.library-hero{align-items:flex-start;flex-direction:column;padding:24px}.library-hero-stats{width:100%}.library-hero-stats>div{flex:1}}

/* Responsive single-page PDF reader. */
.pdf-reader-stage{flex:1;min-height:0;display:flex;align-items:flex-start;justify-content:center;padding:24px;overflow:auto;overscroll-behavior:contain}.pdf-page{display:block;max-width:100%;height:auto;background:#fff;border-radius:6px;box-shadow:0 22px 55px rgba(0,0,0,.55)}
.resource-hero{margin-bottom:22px;padding:30px;border-radius:20px;color:#fff;background:linear-gradient(130deg,#0f172a,#1d4ed8 62%,#0f766e);box-shadow:0 18px 45px rgba(30,64,175,.2)}.resource-hero h1{margin:10px 0 8px;font-size:clamp(25px,4vw,38px)}.resource-hero p{max-width:760px;margin:0;color:#dbeafe;line-height:1.7}.official-resources-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.official-resource-card{display:flex;flex-direction:column;align-items:flex-start;padding:22px;border:1px solid #dbe4f0;border-radius:18px;background:#fff;box-shadow:0 10px 28px rgba(15,23,42,.07)}.official-resource-icon{display:grid;width:46px;height:46px;margin-bottom:18px;place-items:center;border-radius:14px;color:#fff;background:linear-gradient(135deg,#2563eb,#0f766e)}.official-resource-card>span{color:#0f766e;font-size:12px;font-weight:800;letter-spacing:.04em}.official-resource-card h2{margin:7px 0;font-size:20px}.official-resource-card p{flex:1;color:#64748b;line-height:1.65}.official-resource-card .btn{margin-top:14px}.resource-notice{display:flex;gap:16px;margin-top:20px;padding:20px;border:1px solid #fde68a;border-radius:16px;background:#fffbeb;color:#713f12}.resource-notice>i{font-size:26px;color:#d97706}.resource-notice p{margin:5px 0 0;line-height:1.6}@media(max-width:700px){.pdf-reader-stage{padding:8px}.resource-hero{padding:23px}.resource-notice{align-items:flex-start}}