/* ============================================================
   eBookVault — Main CSS v5  |  Mobile-first, Light theme
   ============================================================ */
:root{
  --c-primary:#0d7377;
  --c-primary-dk:#085a5d;
  --c-primary-lt:#14a8a0;
  --c-accent:#e07b39;
  --c-accent-dk:#c96a2a;
  --c-text-h:#1a202c;
  --c-text:#4a5568;
  --c-text-m:#718096;
  --c-text-lt:#a0aec0;
  --c-border:#e2e8f0;
  --c-border-lt:#f0f4f8;
  --c-bg:#f7fafc;
  --c-white:#ffffff;
  --shadow-xs:0 1px 3px rgba(0,0,0,.06);
  --shadow-sm:0 2px 8px rgba(0,0,0,.08);
  --shadow-md:0 4px 18px rgba(0,0,0,.1);
  --shadow-lg:0 8px 36px rgba(0,0,0,.12);
  --r-sm:6px;--r-md:10px;--r-lg:16px;--r-xl:22px;
  --font-sans:'Inter',system-ui,-apple-system,sans-serif;
  --font-serif:'Merriweather',Georgia,serif;
  --ease:cubic-bezier(.4,0,.2,1);
  --dur:.18s;
  --max-w:1240px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);color:var(--c-text);background:var(--c-bg);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur)}
a:hover{color:var(--c-primary-dk)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5{font-family:var(--font-serif);color:var(--c-text-h);line-height:1.25;font-weight:700}
.container{max-width:var(--max-w);margin:0 auto;padding:0 16px}

/* ── HEADER ───────────────────────── */
.site-header{background:var(--c-primary-dk);position:sticky;top:0;z-index:900;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.header-top{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.header-top-inner{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.site-logo a{display:flex;align-items:center;gap:9px;flex-shrink:0}
.logo-mark{width:34px;height:34px;background:var(--c-accent);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}
.logo-text{font-family:var(--font-serif);font-size:1.15rem;font-weight:700;color:#fff;white-space:nowrap;line-height:1.1}
.logo-tag{font-size:.56rem;color:rgba(255,255,255,.5);display:block;font-family:var(--font-sans);font-weight:400}
.header-search{flex:1;min-width:200px;max-width:520px}
.search-wrap{display:flex;background:#fff;border-radius:var(--r-md);overflow:hidden;border:2px solid transparent;transition:border-color var(--dur)}
.search-wrap:focus-within{border-color:var(--c-accent)}
.search-cat{background:#f7fafc;border:none;border-right:1px solid var(--c-border);padding:0 10px;color:var(--c-text);font-size:.75rem;cursor:pointer;min-width:90px}
.search-input{flex:1;border:none;padding:9px 12px;font-size:.875rem;outline:none;color:var(--c-text-h);min-width:0}
.search-input::placeholder{color:var(--c-text-lt)}
.search-btn{background:var(--c-primary);border:none;padding:0 14px;color:#fff;cursor:pointer;display:flex;align-items:center;transition:background var(--dur)}
.search-btn:hover{background:var(--c-primary-lt)}
.header-auth{display:flex;align-items:center;gap:7px;flex-shrink:0;margin-left:auto}
.btn-auth{padding:7px 13px;border-radius:var(--r-sm);font-size:.78rem;font-weight:600;transition:all var(--dur);white-space:nowrap}
.btn-login{color:rgba(255,255,255,.85);border:1.5px solid rgba(255,255,255,.3)}
.btn-login:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-register{background:var(--c-accent);color:#fff}
.btn-register:hover{background:var(--c-accent-dk);color:#fff}
.user-wrap{position:relative}
.user-toggle{display:flex;align-items:center;gap:7px;background:rgba(255,255,255,.1);border:none;padding:6px 10px;border-radius:var(--r-sm);color:#fff;cursor:pointer;font-size:.78rem;font-weight:500}
.user-av{width:24px;height:24px;border-radius:50%;background:var(--c-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.73rem;flex-shrink:0}
.user-drop{display:none;position:absolute;top:calc(100% + 6px);right:0;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--shadow-lg);min-width:155px;z-index:200;overflow:hidden}
.user-drop.open{display:block}
.user-drop a{display:block;padding:9px 14px;color:var(--c-text);font-size:.8rem;transition:background var(--dur)}
.user-drop a:hover{background:var(--c-bg)}
.user-drop hr{border:none;border-top:1px solid var(--c-border)}
.mob-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;flex-direction:column;gap:5px;margin-left:auto}
.mob-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:all var(--dur)}
.primary-nav{background:var(--c-primary)}
.nav-list{display:flex;align-items:center;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.nav-list::-webkit-scrollbar{display:none}
.nav-link{display:block;padding:10px 11px;color:rgba(255,255,255,.82);font-size:.78rem;font-weight:500;transition:all var(--dur);white-space:nowrap}
.nav-link:hover,.nav-item.active .nav-link{color:#fff;background:rgba(255,255,255,.12);border-radius:4px}

/* flash */
.flash-bar{padding:9px 0;font-size:.84rem;font-weight:500}
.flash-bar .container{display:flex;align-items:center;justify-content:space-between;gap:10px}
.flash-success{background:#c6f6d5;color:#276749}
.flash-error{background:#fed7d7;color:#9b2c2c}
.flash-info{background:#bee3f8;color:#2a69ac}
.flash-warning{background:#fefcbf;color:#7b6000}
.flash-close{background:none;border:none;cursor:pointer;font-size:1.1rem;opacity:.5;flex-shrink:0}

/* ── HERO ─────────────────────────── */
.hero{background:linear-gradient(135deg,#062e31 0%,#0d7377 60%,#0f9590 100%);padding:44px 0 36px;position:relative;overflow:hidden}
.hero::after{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23fff' fill-opacity='0.02'%3E%3Cpath d='M0 0h40v40H0zm40 40h40v40H40z'/%3E%3C/g%3E%3C/svg%3E");pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:center;position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:5px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.9);font-size:.66rem;font-weight:700;padding:4px 11px;border-radius:30px;margin-bottom:12px;text-transform:uppercase;letter-spacing:.6px}
.hero-title{font-size:clamp(1.55rem,3.8vw,2.5rem);color:#fff;margin-bottom:12px;line-height:1.22}
.hero-title em{color:var(--c-accent);font-style:normal}
.hero-sub{color:rgba(255,255,255,.75);font-size:.875rem;max-width:440px;margin-bottom:22px;line-height:1.75;font-family:var(--font-sans)}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.btn-hero-p{background:var(--c-accent);color:#fff;padding:11px 24px;border-radius:var(--r-md);font-weight:700;font-size:.88rem;box-shadow:0 4px 14px rgba(224,123,57,.35);transition:all var(--dur)}
.btn-hero-p:hover{background:var(--c-accent-dk);color:#fff;transform:translateY(-1px)}
.btn-hero-s{background:rgba(255,255,255,.1);color:#fff;padding:11px 18px;border-radius:var(--r-md);font-weight:600;font-size:.88rem;border:1.5px solid rgba(255,255,255,.26);transition:all var(--dur)}
.btn-hero-s:hover{background:rgba(255,255,255,.17);color:#fff}
.hero-stats{display:flex;gap:20px;flex-wrap:wrap;padding-top:18px;border-top:1px solid rgba(255,255,255,.1)}
.hs-n{font-size:1.45rem;font-weight:800;color:#fff;display:block;line-height:1}
.hs-l{font-size:.64rem;color:rgba(255,255,255,.55);text-transform:uppercase;letter-spacing:.6px;margin-top:3px;display:block}
.hero-visual{border-radius:var(--r-xl);overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.3);position:relative;aspect-ratio:4/3}
.hslide{position:absolute;inset:0;opacity:0;transition:opacity .65s var(--ease)}
.hslide.on{opacity:1}
.hslide img{width:100%;height:100%;object-fit:cover}
.hslide-cap{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.78));padding:26px 16px 16px;color:#fff}
.hslide-cap h3{font-size:.95rem;color:#fff;margin-bottom:2px}
.hslide-cap p{font-size:.73rem;opacity:.8}
.slide-dots{position:absolute;bottom:10px;right:12px;display:flex;gap:5px;z-index:2}
.sdot{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;transition:all var(--dur)}
.sdot.on{background:#fff;width:16px;border-radius:3px}

/* ── SECTIONS ─────────────────────── */
.section{padding:44px 0}
.section-alt{background:var(--c-white)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:22px;gap:10px;flex-wrap:wrap}
.sec-label{font-size:.63rem;font-weight:800;text-transform:uppercase;letter-spacing:1.2px;color:var(--c-primary);margin-bottom:4px;display:block}
.sec-title{font-size:1.3rem;color:var(--c-text-h)}
.sec-link{font-size:.79rem;font-weight:600;color:var(--c-primary);white-space:nowrap;flex-shrink:0}
.sec-link:hover{color:var(--c-primary-dk)}

/* ── BOOK CARDS ───────────────────── */
.books-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.book-card{background:#fff;border-radius:var(--r-md);border:1px solid var(--c-border);box-shadow:var(--shadow-xs);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--dur),box-shadow var(--dur),border-color var(--dur)}
.book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(13,115,119,.2)}
.book-img{position:relative;overflow:hidden;background:#f0f4f8;aspect-ratio:2/3;display:block}
.book-img img,.book-cover-img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.book-card:hover .book-img img,.book-card:hover .book-cover-img{transform:scale(1.04)}
.bk-badge{position:absolute;top:6px;left:6px;font-size:.58rem;font-weight:800;padding:3px 7px;border-radius:20px;text-transform:uppercase;letter-spacing:.4px}
.bk-feat{background:var(--c-accent);color:#fff}
.bk-pop{background:var(--c-primary);color:#fff}
.bk-new{background:#38a169;color:#fff}
.bk-lang{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.52);color:#fff;font-size:.56rem;font-weight:700;padding:2px 5px;border-radius:3px;text-transform:uppercase}
.book-body{padding:10px 11px 11px;flex:1;display:flex;flex-direction:column;gap:3px}
.book-title{font-family:var(--font-serif);font-size:.81rem;font-weight:700;color:var(--c-text-h);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.35}
.book-title:hover{color:var(--c-primary)}
.book-author{font-size:.7rem;color:var(--c-primary)}
.book-desc{font-size:.69rem;color:var(--c-text-m);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;line-height:1.5}
.book-foot{display:flex;align-items:center;justify-content:space-between;margin-top:6px}
.bk-stars{display:flex;align-items:center;gap:2px;font-size:.66rem}
.bk-star-f{color:#f6ad55}
.bk-star-e{color:#e2e8f0}
.bk-rn{font-size:.64rem;color:var(--c-text-m);margin-left:2px}
.bk-views{font-size:.64rem;color:var(--c-text-lt);display:flex;align-items:center;gap:2px}

/* ── CAROUSEL ─────────────────────── */
.car-outer{position:relative;margin:0 -4px;padding:0 4px}
.car-track{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
.car-btn{display:none}

/* ── CATEGORIES ───────────────────── */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
.cat-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:14px 10px;text-align:center;transition:all var(--dur);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:5px}
.cat-card:hover{border-color:var(--c-primary);background:rgba(13,115,119,.03);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.cat-icon{font-size:1.5rem;line-height:1}
.cat-name{font-size:.76rem;font-weight:700;color:var(--c-text-h);line-height:1.2}
.cat-cnt{font-size:.64rem;color:var(--c-text-lt)}

/* ── AUTHORS ──────────────────────── */
.authors-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.author-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:15px 10px;text-align:center;transition:all var(--dur)}
.author-card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.author-av{width:54px;height:54px;border-radius:50%;object-fit:cover;margin:0 auto 8px;border:3px solid var(--c-bg)}
.author-av-ph{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-lt));color:#fff;font-size:1.2rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 8px}
.author-name{font-size:.78rem;font-weight:700;color:var(--c-text-h);line-height:1.2}
.author-cnt{font-size:.66rem;color:var(--c-text-lt);margin-top:2px}

/* ── EBOOK DETAIL ─────────────────── */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--c-border);padding:9px 0;font-size:.75rem;color:var(--c-text-m)}
.breadcrumb-bar ol{display:flex;flex-wrap:wrap;gap:4px;align-items:center}
.breadcrumb-bar li::after{content:'›';margin-left:4px;opacity:.4}
.breadcrumb-bar li:last-child::after{display:none}
.breadcrumb-bar a{color:var(--c-primary)}
.book-detail-wrap{padding:28px 0 48px}
.book-detail-grid{display:grid;grid-template-columns:220px 1fr;gap:32px;align-items:start}
.book-sidebar{position:sticky;top:90px}
.book-cover{width:100%;aspect-ratio:2/3;object-fit:cover;border-radius:var(--r-md);box-shadow:0 8px 32px rgba(0,0,0,.14);border:1px solid var(--c-border)}
.book-cover-placeholder{width:100%;aspect-ratio:2/3;background:linear-gradient(135deg,#e2e8f0,#edf2f7);border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;font-size:3rem;border:1px solid var(--c-border)}
.book-actions{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.book-title-main{font-size:clamp(1.25rem,3vw,1.75rem);margin-bottom:9px;line-height:1.25}
.book-meta-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:14px}
.book-meta-chip{font-size:.74rem;color:var(--c-text-m)}
.book-meta-chip a{color:var(--c-primary);font-weight:600}
.book-meta-sep{color:var(--c-border)}
.book-rating-row{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap;padding:11px 14px;background:#f7fafc;border-radius:var(--r-md);border:1px solid var(--c-border)}
.b-big-r{font-size:1.9rem;font-weight:800;color:var(--c-text-h);line-height:1}
.b-stars{display:flex;gap:2px;font-size:1.1rem}
.b-star-f{color:#f6ad55}.b-star-e{color:#e2e8f0}
.b-rcount{font-size:.76rem;color:var(--c-text-m)}
.book-meta{display:grid;grid-template-columns:1fr 1fr;gap:9px 18px;margin-bottom:18px;background:#f7fafc;padding:12px 14px;border-radius:var(--r-md);border:1px solid var(--c-border)}
.bm-item{font-size:.79rem}
.bm-label{font-size:.64rem;text-transform:uppercase;letter-spacing:.5px;color:var(--c-text-lt);display:block;margin-bottom:2px;font-weight:600}
.bm-val{color:var(--c-text-h);font-weight:600}
.bm-val a{color:var(--c-primary)}
.book-short{background:rgba(13,115,119,.05);border-left:3px solid var(--c-primary);padding:12px 16px;border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:.875rem;line-height:1.8;margin-bottom:18px;color:var(--c-text)}
.tabs{margin-top:22px}
.tab-list{display:flex;border-bottom:2px solid var(--c-border)}
.tab-btn{padding:9px 16px;background:none;border:none;font-weight:600;font-size:.83rem;color:var(--c-text-m);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color var(--dur)}
.tab-btn:hover{color:var(--c-primary)}
.tab-btn.active{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.tab-panel{display:none;padding:18px 0}
.tab-panel.active{display:block}
.book-body-text{line-height:1.88;font-size:.88rem;color:var(--c-text)}
.book-body-text p{margin-bottom:12px}
.book-body-text h2,.book-body-text h3{font-size:1rem;margin:16px 0 8px;color:var(--c-text-h)}
.book-body-text ul,.book-body-text ol{padding-left:18px;margin-bottom:12px}
.book-body-text li{margin-bottom:6px;line-height:1.7}
.source-note{background:#f7fafc;border-left:3px solid var(--c-primary);padding:9px 13px;border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:.75rem;color:var(--c-text-m);margin-top:12px}
.share-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.share-btn{display:inline-flex;align-items:center;gap:4px;padding:6px 11px;border-radius:var(--r-sm);font-size:.72rem;font-weight:600;cursor:pointer;border:none;transition:all var(--dur)}
.sh-tw{background:#e8f5fe;color:#1da1f2}.sh-tw:hover{background:#1da1f2;color:#fff}
.sh-fb{background:#e8f0fe;color:#1877f2}.sh-fb:hover{background:#1877f2;color:#fff}
.sh-cp{background:#f7fafc;color:var(--c-text);border:1px solid var(--c-border)}.sh-cp:hover{background:#e2e8f0}
.review-card{background:#f7fafc;border-radius:var(--r-md);border:1px solid var(--c-border);padding:13px 15px;margin-bottom:10px}
.rev-head{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;margin-bottom:6px;flex-wrap:wrap}
.rev-name{font-weight:700;font-size:.82rem;color:var(--c-text-h)}
.rev-time{font-size:.68rem;color:var(--c-text-lt)}
.rev-title{font-weight:600;font-size:.82rem;margin-bottom:4px;color:var(--c-text-h)}
.rev-body{font-size:.82rem;color:var(--c-text);line-height:1.65}
.comment-item{display:flex;gap:9px;margin-bottom:12px}
.com-av{width:28px;height:28px;border-radius:50%;flex-shrink:0;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.7rem}
.com-bubble{flex:1;background:#f7fafc;border-radius:0 var(--r-md) var(--r-md) var(--r-md);border:1px solid var(--c-border);padding:8px 12px}
.com-meta{display:flex;justify-content:space-between;margin-bottom:3px}
.com-name{font-weight:700;font-size:.74rem;color:var(--c-text-h)}
.com-time{font-size:.66rem;color:var(--c-text-lt)}
.com-text{font-size:.81rem;color:var(--c-text);line-height:1.6}

/* ── FORMS ────────────────────────── */
.form-group{margin-bottom:12px}
.form-label{display:block;font-size:.76rem;font-weight:700;color:var(--c-text-h);margin-bottom:4px}
.form-control{width:100%;padding:9px 11px;border:1.5px solid var(--c-border);border-radius:var(--r-sm);font-size:.875rem;color:var(--c-text-h);background:#fff;transition:border-color var(--dur)}
.form-control:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(13,115,119,.07)}
textarea.form-control{resize:vertical;min-height:90px}
.filter-group{display:flex;flex-direction:column;gap:3px}
.filter-label{font-size:.7rem;font-weight:600;color:var(--c-text-m);text-transform:uppercase;letter-spacing:.4px}
.filter-select{padding:7px 10px;border:1.5px solid var(--c-border);border-radius:var(--r-sm);font-size:.82rem;color:var(--c-text-h);background:#fff;cursor:pointer}
.star-input{display:flex;flex-direction:row-reverse;gap:3px}
.star-input input{display:none}
.star-input label{font-size:1.5rem;cursor:pointer;color:#e2e8f0;transition:color var(--dur)}
.star-input label:hover,.star-input label:hover~label,.star-input input:checked~label{color:#f6ad55}

/* ── BUTTONS ──────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:var(--r-sm);font-weight:600;font-size:.875rem;cursor:pointer;border:none;transition:all var(--dur);white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#fff}.btn-primary:hover{background:var(--c-primary-dk);color:#fff}
.btn-accent{background:var(--c-accent);color:#fff}.btn-accent:hover{background:var(--c-accent-dk);color:#fff}
.btn-ghost{background:#f7fafc;color:var(--c-text);border:1px solid var(--c-border)}.btn-ghost:hover{background:#e2e8f0}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}.btn-outline:hover{background:var(--c-primary);color:#fff}
.btn-danger{background:#e53e3e;color:#fff}.btn-danger:hover{background:#c53030;color:#fff}
.btn-success{background:#38a169;color:#fff}.btn-success:hover{background:#276749;color:#fff}
.btn-sm{padding:6px 12px;font-size:.76rem}
.btn-lg{padding:12px 26px;font-size:.95rem}
.btn-block{width:100%}

/* ── NEWSLETTER BAND ──────────────── */
.nl-band{background:linear-gradient(135deg,#e8f4f4 0%,#f0f9f9 100%);padding:40px 0;border-top:1px solid #bee3e3}
.nl-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.nl-text h2{font-size:1.3rem;color:var(--c-text-h);margin-bottom:6px}
.nl-text p{color:var(--c-text-m);font-size:.875rem}
.nl-form{display:flex;gap:0;border-radius:var(--r-md);overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.08);min-width:260px;max-width:400px;flex:1;border:1px solid var(--c-border)}
.nl-input{flex:1;border:none;padding:11px 14px;font-size:.875rem;color:var(--c-text-h);outline:none;min-width:0}
.nl-btn{background:var(--c-primary);border:none;padding:11px 18px;color:#fff;font-weight:700;font-size:.875rem;cursor:pointer;transition:background var(--dur);white-space:nowrap}
.nl-btn:hover{background:var(--c-primary-dk)}

/* ── PAGINATION ───────────────────── */
.pager{margin:30px 0;display:flex;justify-content:center}
.pager-list{display:flex;gap:4px;flex-wrap:wrap;align-items:center}
.pager-list a,.pager-list span{display:flex;align-items:center;justify-content:center;min-width:34px;height:34px;padding:0 9px;border:1px solid var(--c-border);border-radius:var(--r-sm);font-size:.8rem;font-weight:500;color:var(--c-text);transition:all var(--dur);background:#fff}
.pager-list a:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.pager-list span.cur{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.pager-list .dots{border:none;background:none;pointer-events:none;color:var(--c-text-lt)}

/* ── FOOTER — LIGHT ───────────────── */
.site-footer{background:#f0f4f8;border-top:2px solid var(--c-border);color:var(--c-text)}
.footer-main{padding:40px 0 26px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:30px}
.fl-logo-text{font-family:var(--font-serif);font-size:1.15rem;color:var(--c-text-h);font-weight:700}
.fl-about{font-size:.78rem;line-height:1.75;margin-top:9px;color:var(--c-text-m)}
.fl-social{display:flex;gap:7px;margin-top:12px}
.fl-slink{width:30px;height:30px;border-radius:var(--r-sm);background:#e2e8f0;display:flex;align-items:center;justify-content:center;color:var(--c-text-m);transition:all var(--dur)}
.fl-slink:hover{background:var(--c-primary);color:#fff}
.fl-head{font-size:.66rem;font-weight:800;color:var(--c-text-h);text-transform:uppercase;letter-spacing:.9px;margin-bottom:11px}
.fl-links li{margin-bottom:5px}
.fl-links a{font-size:.77rem;color:var(--c-text-m);transition:color var(--dur)}
.fl-links a:hover{color:var(--c-primary)}
.fl-nl-text{font-size:.77rem;color:var(--c-text-m);margin-bottom:9px;line-height:1.65}
.fl-nl-form{display:flex;border-radius:var(--r-sm);overflow:hidden;border:1.5px solid var(--c-border)}
.fl-nl-inp{flex:1;background:#fff;border:none;padding:8px 10px;color:var(--c-text-h);font-size:.77rem;min-width:0;outline:none}
.fl-nl-inp::placeholder{color:var(--c-text-lt)}
.fl-nl-btn{background:var(--c-primary);border:none;padding:8px 12px;color:#fff;font-size:.75rem;font-weight:700;cursor:pointer;transition:background var(--dur)}
.fl-nl-btn:hover{background:var(--c-primary-dk)}
.footer-bottom{border-top:1px solid var(--c-border);padding:14px 0;background:#e8edf2}
.footer-bot-in{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:.7rem;color:var(--c-text-m)}
.footer-bot-in a{color:var(--c-text-m);transition:color var(--dur)}
.footer-bot-in a:hover{color:var(--c-primary)}

/* ── AUTH ─────────────────────────── */
.auth-wrap{min-height:70vh;display:flex;align-items:center;padding:36px 0}
.auth-card{max-width:410px;width:100%;margin:0 auto;background:#fff;border-radius:var(--r-xl);box-shadow:var(--shadow-lg);padding:30px;border:1px solid var(--c-border)}
.auth-title{font-size:1.3rem;margin-bottom:3px}
.auth-sub{font-size:.81rem;color:var(--c-text-m);margin-bottom:18px}
.auth-alt{text-align:center;font-size:.81rem;color:var(--c-text-m);margin-top:14px}

/* ── PAGE HERO ────────────────────── */
.page-hero{background:linear-gradient(135deg,#e8f4f4,#f0f9f9);border-bottom:1px solid var(--c-border);padding:26px 0}
.page-hero h1{font-size:1.5rem;color:var(--c-text-h)}
.page-hero p{color:var(--c-text-m);margin-top:4px;font-size:.85rem}
.page-body{padding:36px 0}
.page-body p{margin-bottom:12px;line-height:1.85;font-size:.875rem}
.page-body h2{font-size:1.2rem;margin:20px 0 9px}

/* ── MISC ─────────────────────────── */
.empty-state{text-align:center;padding:52px 20px}
.empty-icon{font-size:2.8rem;margin-bottom:12px}
.empty-title{font-size:1.05rem;margin-bottom:6px}
.empty-text{color:var(--c-text-m);max-width:340px;margin:0 auto 18px;font-size:.85rem}
.error-page{text-align:center;padding:64px 20px}
.error-code{font-size:6rem;font-weight:900;color:var(--c-border);line-height:1}
.error-title{font-size:1.5rem;margin:11px 0 8px}
.badge{display:inline-block;padding:3px 8px;border-radius:20px;font-size:.64rem;font-weight:700;text-transform:uppercase}
.badge-primary{background:rgba(13,115,119,.08);color:var(--c-primary)}
.badge-gray{background:#e2e8f0;color:var(--c-text-m)}

/* ── COOKIE BAR ───────────────────── */
.cookie-bar{position:fixed;bottom:0;left:0;right:0;z-index:8000;background:#fff;border-top:1px solid var(--c-border);box-shadow:0 -4px 20px rgba(0,0,0,.08);padding:12px 0;animation:slideup .3s var(--ease)}
@keyframes slideup{from{transform:translateY(100%)}to{transform:translateY(0)}}
.cookie-inner{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;text-align:center}
.cookie-text{font-size:.83rem;color:var(--c-text)}
.cookie-text a{color:var(--c-primary);text-decoration:underline}
.cookie-ok{background:var(--c-primary);border:none;color:#fff;padding:8px 24px;border-radius:var(--r-sm);font-weight:700;font-size:.83rem;cursor:pointer;transition:background var(--dur)}
.cookie-ok:hover{background:var(--c-primary-dk)}

/* ── MODAL ────────────────────────── */
.modal-ov{display:none;position:fixed;inset:0;background:rgba(0,0,0,.38);backdrop-filter:blur(2px);z-index:9000;align-items:center;justify-content:center;padding:16px}
.modal-ov.open{display:flex}
.modal-box{background:#fff;border-radius:var(--r-lg);padding:22px;max-width:440px;width:100%;box-shadow:var(--shadow-lg);border:1px solid var(--c-border)}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.modal-head h3{font-size:.95rem}
.modal-close{background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--c-text-m)}
.toast{position:fixed;bottom:72px;right:16px;z-index:9999;padding:10px 15px;border-radius:var(--r-md);color:#fff;font-size:.82rem;font-weight:500;box-shadow:var(--shadow-lg);max-width:270px;animation:slideup .3s var(--ease)}
.toast-s{background:#276749}.toast-e{background:#9b2c2c}.toast-i{background:#2b6cb0}

/* ── AUTOCOMPLETE ─────────────────── */
.ac-drop{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--c-border);border-radius:0 0 var(--r-md) var(--r-md);box-shadow:var(--shadow-md);z-index:500;max-height:260px;overflow-y:auto}
.ac-item{display:flex;flex-direction:column;padding:8px 12px;border-bottom:1px solid #f7fafc;transition:background var(--dur);color:var(--c-text)}
.ac-item:hover{background:var(--c-bg)}
.ac-title{font-size:.81rem;font-weight:600;color:var(--c-text-h)}
.ac-auth{font-size:.69rem;color:var(--c-text-m)}

/* ══════════════════════════════════════
   RESPONSIVE — Mobile First
══════════════════════════════════════ */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:24px}
  .hero-visual{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
  .book-detail-grid{grid-template-columns:200px 1fr;gap:24px}
  .nl-inner{flex-direction:column;text-align:center}
}

@media(max-width:1024px){
  .books-grid{grid-template-columns:repeat(4,1fr);gap:12px}
}
@media(max-width:768px){
  .container{padding:0 14px}
  /* Header */
  .header-top-inner{flex-wrap:wrap;gap:8px}
  .header-search{order:3;width:100%;flex-basis:100%;max-width:100%;min-width:0}
  .header-auth{margin-left:auto}
  .search-cat{display:none}
  .mob-toggle{display:flex}
  .primary-nav .nav-list{display:none;flex-direction:column;background:var(--c-primary-dk)}
  .primary-nav .nav-list.open{display:flex}
  .nav-link{border-bottom:1px solid rgba(255,255,255,.06);border-radius:0;padding:11px 16px;width:100%}
  /* Hero */
  .hero{padding:26px 0 22px}
  .hero-stats{gap:14px}
  /* Books */
  .books-grid{grid-template-columns:repeat(3,1fr);gap:10px}
  .car-track{grid-template-columns:repeat(3,1fr);gap:10px}
  /* Sections */
  .section{padding:28px 0}
  .sec-title{font-size:1.15rem}
  /* Categories */
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .authors-row{grid-template-columns:repeat(3,1fr)}
  /* Detail */
  .book-detail-grid{grid-template-columns:1fr}
  .book-sidebar{position:static;max-width:180px;margin:0 auto}
  .book-meta{grid-template-columns:1fr}
  .tab-btn{padding:8px 12px;font-size:.79rem}
  /* Footer */
  .footer-grid{grid-template-columns:1fr}
  .footer-main{padding:28px 0 20px}
  /* Filter */
  form[method="GET"]{flex-direction:column;gap:10px}
}

@media(max-width:480px){
  .books-grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .car-track{grid-template-columns:repeat(2,1fr);gap:8px}
  .section{padding:20px 0}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .authors-row{grid-template-columns:repeat(2,1fr)}
  .sec-head{flex-direction:column;align-items:flex-start;gap:4px}
  .hero-cta{gap:8px}
  .btn-hero-p,.btn-hero-s{padding:10px 16px;font-size:.83rem}
  .book-title{font-size:.77rem}
  .cookie-inner{flex-direction:column;gap:10px}
}

@media print{
  .site-header,.site-footer,.cookie-bar,.book-actions,.share-row{display:none!important}
  .book-detail-grid{grid-template-columns:1fr}
}

/* ══════════════════════════════════════
   EBOOK DETAIL — hicde inspired
══════════════════════════════════════ */
.bk-detail-wrap{padding:28px 0 52px}
.bk-detail-grid{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:start}

/* Sidebar */
.bk-sidebar{display:flex;flex-direction:column;gap:14px;position:sticky;top:90px}

/* Cover */
.bk-cover-box{position:relative;border-radius:var(--r-md);overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.14)}
.bk-cover-link{display:block;position:relative}
.bk-cover-img{width:100%;aspect-ratio:2/3;object-fit:cover;display:block}
.bk-cover-placeholder{width:100%;aspect-ratio:2/3;background:linear-gradient(135deg,#e2e8f0,#edf2f7);display:flex;align-items:center;justify-content:center;font-size:4rem;border-radius:var(--r-md);border:1px solid var(--c-border)}
.bk-cover-zoom{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.55);color:#fff;text-align:center;padding:7px;font-size:.72rem;font-weight:600;opacity:0;transition:opacity var(--dur)}
.bk-cover-link:hover .bk-cover-zoom{opacity:1}

/* File download box */
.bk-files-box{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);overflow:hidden}
.bk-files-head{background:var(--c-primary);color:#fff;font-size:.72rem;font-weight:700;padding:9px 14px;text-transform:uppercase;letter-spacing:.5px}
.bk-dl-btn{display:flex;align-items:center;gap:11px;padding:11px 14px;border-bottom:1px solid var(--c-border-lt);color:var(--c-text-h);transition:background var(--dur)}
.bk-dl-btn:last-child{border-bottom:none}
.bk-dl-btn:hover{background:#f7fafc;color:var(--c-text-h)}
.bk-dl-icon{font-size:1.2rem;flex-shrink:0;width:22px;text-align:center}
.bk-dl-info{display:flex;flex-direction:column;gap:1px;min-width:0}
.bk-dl-label{font-size:.82rem;font-weight:700;color:var(--c-text-h)}
.bk-dl-fmt{font-size:.68rem;color:var(--c-text-lt)}
.bk-dl-primary .bk-dl-label{color:var(--c-primary)}
.bk-dl-primary{background:rgba(13,115,119,.04)}
.bk-dl-source .bk-dl-label{color:var(--c-text-m)}

/* License box */
.bk-license-box{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--r-md);padding:11px 13px;font-size:.75rem;color:#92400e;display:flex;gap:9px;align-items:flex-start;line-height:1.5}
.bk-license-icon{font-size:1.1rem;flex-shrink:0;margin-top:1px}

/* Share box */
.bk-share-box{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);padding:12px 14px}
.bk-share-label{font-size:.69rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--c-text-m);margin-bottom:9px}
.bk-share-btns{display:flex;gap:7px}
.bk-share-btn{width:34px;height:34px;border-radius:var(--r-sm);border:1px solid var(--c-border);background:#fff;cursor:pointer;font-size:.88rem;font-weight:700;display:flex;align-items:center;justify-content:center;transition:all var(--dur);flex-shrink:0}
.bk-sh-tw:hover{background:#1da1f2;color:#fff;border-color:#1da1f2}
.bk-sh-fb:hover{background:#1877f2;color:#fff;border-color:#1877f2}
.bk-sh-wa:hover{background:#25d366;color:#fff;border-color:#25d366}
.bk-sh-cp:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* Fav & report */
.bk-fav-btn{width:100%;padding:10px;border-radius:var(--r-sm);background:#fff;border:1.5px solid var(--c-border);color:var(--c-text);font-size:.82rem;font-weight:600;cursor:pointer;transition:all var(--dur);text-align:center}
.bk-fav-btn:hover,.bk-fav-btn.on{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.bk-report-btn{background:none;border:none;color:var(--c-text-lt);font-size:.72rem;cursor:pointer;text-align:center;width:100%;padding:4px}
.bk-report-btn:hover{color:var(--c-text-m)}

/* Main content */
.bk-title{font-size:clamp(1.3rem,3vw,1.9rem);margin-bottom:10px;line-height:1.25;color:var(--c-text-h)}
.bk-meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:5px;margin-bottom:14px;font-size:.8rem;color:var(--c-text-m)}
.bk-meta-by,.bk-meta-label{color:var(--c-text-lt);font-weight:400}
.bk-meta-author{color:var(--c-primary);font-weight:600}
.bk-meta-author:hover{color:var(--c-primary-dk)}
.bk-meta-cat{color:var(--c-primary);font-weight:600}
.bk-meta-sep{color:var(--c-border);font-weight:400;padding:0 1px}
.bk-meta-date{color:var(--c-text-lt)}

/* Rating bar */
.bk-rating-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 16px;background:#f7fafc;border:1px solid var(--c-border);border-radius:var(--r-md);margin-bottom:16px}
.bk-rating-big{font-size:2rem;font-weight:900;color:var(--c-text-h);line-height:1}
.bk-stars-row{display:flex;align-items:center;gap:2px;font-size:1rem}
.bk-sf{color:#f6ad55}.bk-se{color:#e2e8f0}
.bk-rating-count{font-size:.76rem;color:var(--c-text-m);margin-left:6px}
.bk-views-count{font-size:.75rem;color:var(--c-text-lt);margin-left:auto}

/* Info grid */
.bk-info-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px;margin-bottom:18px;padding:14px 16px;background:#f7fafc;border:1px solid var(--c-border);border-radius:var(--r-md)}
.bk-info-label{display:block;font-size:.63rem;text-transform:uppercase;letter-spacing:.5px;color:var(--c-text-lt);font-weight:700;margin-bottom:2px}
.bk-info-val{font-size:.82rem;color:var(--c-text-h);font-weight:600}
.bk-info-val a{color:var(--c-primary)}

/* Short desc callout */
.bk-short-desc{background:rgba(13,115,119,.05);border-left:4px solid var(--c-primary);padding:14px 18px;border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:.9rem;line-height:1.8;color:var(--c-text);margin-bottom:20px;font-style:italic}

/* Tabs */
.bk-tabs{margin-top:22px}
.bk-tab-list{display:flex;border-bottom:2px solid var(--c-border);gap:0}
.bk-tab{padding:10px 18px;background:none;border:none;font-weight:600;font-size:.84rem;color:var(--c-text-m);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all var(--dur)}
.bk-tab:hover{color:var(--c-primary)}
.bk-tab.active{color:var(--c-primary);border-bottom-color:var(--c-primary)}
.bk-tab-panel{display:none;padding:20px 0}
.bk-tab-panel.active{display:block}
.bk-body-text{line-height:1.9;font-size:.9rem;color:var(--c-text)}
.bk-body-text p{margin-bottom:14px}
.bk-body-text h2,.bk-body-text h3{font-size:1.05rem;margin:20px 0 9px;color:var(--c-text-h)}
.bk-body-text ul,.bk-body-text ol{padding-left:20px;margin-bottom:13px}
.bk-body-text li{margin-bottom:8px;line-height:1.75}
.bk-body-text strong{color:var(--c-text-h)}
.bk-empty-tab{text-align:center;padding:32px 20px;color:var(--c-text-m);font-size:.875rem;display:flex;flex-direction:column;align-items:center;gap:10px}
.bk-empty-tab span{font-size:2rem}

/* Reviews */
.bk-reviews-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.bk-review-card{background:#f7fafc;border:1px solid var(--c-border);border-radius:var(--r-md);padding:14px 16px}
.bk-rev-header{display:flex;justify-content:space-between;align-items:flex-start;gap:8px;margin-bottom:7px;flex-wrap:wrap}
.bk-rev-name{font-weight:700;font-size:.84rem;color:var(--c-text-h);display:block}
.bk-rev-stars{display:flex;gap:1px;font-size:.85rem;margin-top:2px}
.bk-rev-time{font-size:.7rem;color:var(--c-text-lt)}
.bk-rev-title{font-weight:600;font-size:.84rem;color:var(--c-text-h);margin-bottom:5px}
.bk-rev-body{font-size:.84rem;color:var(--c-text);line-height:1.65}
.bk-review-form,.bk-comment-form{background:#f7fafc;border:1px solid var(--c-border);border-radius:var(--r-md);padding:18px;margin-top:20px}
.bk-review-form h3,.bk-comment-form h3{font-size:.95rem;margin-bottom:14px;color:var(--c-text-h)}
.bk-login-prompt{margin-top:20px;background:#f7fafc;border:1px solid var(--c-border);border-radius:var(--r-md);padding:16px;text-align:center;font-size:.875rem}

/* Comments */
.bk-comment-item{display:flex;gap:10px;margin-bottom:14px}
.bk-com-av{width:32px;height:32px;border-radius:50%;flex-shrink:0;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.75rem}
.bk-com-bubble{flex:1;background:#f7fafc;border-radius:0 var(--r-md) var(--r-md) var(--r-md);border:1px solid var(--c-border);padding:10px 13px}
.bk-com-meta{display:flex;justify-content:space-between;margin-bottom:4px}
.bk-com-name{font-weight:700;font-size:.77rem;color:var(--c-text-h)}
.bk-com-time{font-size:.69rem;color:var(--c-text-lt)}
.bk-com-text{font-size:.83rem;color:var(--c-text);line-height:1.6}

/* Related */
.bk-related{margin-top:44px;padding-top:36px;border-top:1px solid var(--c-border)}

/* ── Responsive ─────────────────── */
@media(max-width:1024px){
  .bk-detail-grid{grid-template-columns:220px 1fr;gap:26px}
  .bk-sidebar{position:static}
}
@media(max-width:768px){
  .bk-detail-grid{grid-template-columns:1fr;gap:20px}
  .bk-sidebar{display:grid;grid-template-columns:160px 1fr;gap:14px;align-items:start}
  .bk-cover-box{grid-row:1/5}
  .bk-files-box{grid-column:2}
  .bk-license-box{grid-column:1/-1}
  .bk-share-box{grid-column:1/-1}
  .bk-fav-btn,.bk-report-btn{grid-column:1/-1}
  .bk-info-grid{grid-template-columns:1fr}
  .bk-rating-big{font-size:1.6rem}
  .bk-tab{padding:8px 12px;font-size:.79rem}
}
@media(max-width:480px){
  .bk-sidebar{display:flex;flex-direction:column}
  .bk-cover-box{max-width:200px;margin:0 auto}
  .bk-info-grid{grid-template-columns:1fr 1fr}
}


.bk-reader-embed-wrap{position:relative;width:100%;height:320px;background:#f7fafc}
.bk-reader-iframe{width:100%;height:100%;border:none;display:block}
.bk-reader-loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#f7fafc}
.bk-reader-load-inner{text-align:center;padding:20px}

/* ═══════════════════════════════════════
   FILE READER + ONLINE READER
═══════════════════════════════════════ */

/* Sidebar main button */
.bk-dl-main-btn{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;background:var(--c-primary);color:#fff;border-radius:var(--r-md);font-weight:700;font-size:.88rem;transition:background var(--dur);text-decoration:none;gap:10px}
.bk-dl-main-btn:hover{background:var(--c-primary-dk);color:#fff}
.bk-dl-free-badge{background:#fff;color:var(--c-primary);font-size:.65rem;font-weight:800;padding:2px 7px;border-radius:12px;letter-spacing:.3px}
.bk-extra-formats{display:flex;flex-direction:column;gap:5px}
.bk-extra-fmt-btn{display:flex;align-items:center;gap:8px;padding:9px 12px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-sm);font-size:.8rem;color:var(--c-text);transition:all var(--dur)}
.bk-extra-fmt-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:#f0fdf4}

/* File Reader Box */
.file-reader-box{background:#fff;border:2px solid var(--c-primary);border-radius:var(--r-md);overflow:hidden;margin-bottom:22px}
.file-reader-head{background:var(--c-primary);color:#fff;padding:10px 16px;font-size:.8rem;font-weight:700;letter-spacing:.3px}
.file-reader-body{display:flex;gap:14px;padding:14px;align-items:flex-start}
.file-reader-cover{width:80px;flex-shrink:0;border-radius:var(--r-sm);box-shadow:0 2px 8px rgba(0,0,0,.12)}
.file-reader-info{flex:1;min-width:0}
.file-reader-title{font-family:var(--font-serif);font-size:.88rem;font-weight:700;color:var(--c-text-h);margin-bottom:3px;line-height:1.3}
.file-reader-author{font-size:.75rem;color:var(--c-text-m);margin-bottom:10px}
.file-reader-actions{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:8px}
.file-reader-license{font-size:.7rem;color:var(--c-text-lt);display:flex;align-items:center;gap:4px}

/* Online Reader */
.online-reader-section{border-top:1px solid var(--c-border)}
.online-reader-head{background:var(--c-primary-dk);color:#fff;padding:9px 14px;font-size:.78rem;font-weight:700;letter-spacing:.3px}
.reader-iframe{width:100%;height:520px;border:none;display:block;background:#fff}
.reader-footer-note{padding:7px 14px;background:#f7fafc;font-size:.68rem;color:var(--c-text-lt);border-top:1px solid var(--c-border)}

/* Cover lightbox + zoom */
.bk-cover-box{position:relative;border-radius:var(--r-md);overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,.14)}
.bk-cover-zoomable{cursor:zoom-in!important;display:block;width:100%}
.bk-cover-zoom-hint{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.55);color:#fff;font-size:.68rem;font-weight:600;text-align:center;padding:6px;opacity:0;transition:opacity .2s;pointer-events:none}
.bk-cover-box:hover .bk-cover-zoom-hint{opacity:1}
.cover-lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:9999;align-items:center;justify-content:center;padding:20px;cursor:zoom-out}
.cover-lightbox.open{display:flex;animation:lbFadeIn .2s ease}
@keyframes lbFadeIn{from{opacity:0}to{opacity:1}}
.cover-lightbox-inner{position:relative;max-width:400px;width:100%;cursor:default}
.cover-lb-close{position:absolute;top:-14px;right:-14px;width:34px;height:34px;border-radius:50%;background:#fff;border:none;font-size:.95rem;cursor:pointer;display:flex;align-items:center;justify-content:center;font-weight:700;z-index:2;box-shadow:0 2px 8px rgba(0,0,0,.3)}
.cover-lb-img{width:100%;border-radius:var(--r-md);box-shadow:0 20px 60px rgba(0,0,0,.5);display:block}
.cover-lb-title{color:rgba(255,255,255,.8);text-align:center;margin-top:12px;font-size:.875rem;font-family:var(--font-serif)}

/* Responsive */
@media(max-width:768px){
  .file-reader-body{flex-direction:column;gap:10px}
  .file-reader-cover{width:100%;max-width:120px}
  .reader-iframe{height:380px}
  .bk-detail-grid{grid-template-columns:1fr!important}
  .bk-sidebar{position:static;display:flex;flex-direction:column;gap:12px}
  .bk-cover-box{max-width:200px;margin:0 auto}
}
@media(max-width:480px){
  .reader-iframe{height:300px}
}