/* =========================================================
   V17 ADVANCED EBOOK + COUPON
   ========================================================= */

.v17-page{max-width:1600px;margin:0 auto}
.v17-head{margin-bottom:16px;padding:20px;border:1px solid #dfe5ee;border-radius:18px;background:radial-gradient(circle at 90% 12%,rgba(91,92,226,.11),transparent 32%),#fff;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;box-shadow:0 8px 24px rgba(15,23,42,.035)}
.v17-head h1{margin:0;color:#101828;font:800 30px/1.2 Poppins,Inter,sans-serif;letter-spacing:-.03em}
.v17-head p{max-width:850px;margin:7px 0 0;color:#667085;font-size:14px;line-height:1.7}
.v17-eyebrow{display:block;margin-bottom:5px;color:#5b5ce2;font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.v17-actions{display:flex;gap:8px;flex-wrap:wrap}
.v17-btn{min-height:44px;padding:0 15px;border:1px solid #d8dee9;border-radius:11px;color:#344054;background:#fff;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:13px;font-weight:800;text-decoration:none;cursor:pointer}
.v17-btn:hover{color:#25324a;border-color:#bcc7d6}
.v17-btn.primary{color:#fff;border-color:#5b5ce2;background:linear-gradient(135deg,#6962f0,#5654df);box-shadow:0 8px 18px rgba(91,92,226,.18)}
.v17-btn.success{color:#fff;border-color:#14914a;background:#18a957}
.v17-btn.danger{color:#b42318;border-color:#efc8c5;background:#fff7f6}
.v17-btn.warning{color:#8c5200;border-color:#ecd5a8;background:#fff9ec}
.v17-tabs{margin-bottom:14px;padding:8px;border:1px solid #e2e7ef;border-radius:13px;background:#fff;display:flex;gap:6px;flex-wrap:wrap}
.v17-tabs a{min-height:38px;padding:0 12px;border-radius:9px;color:#56647a;display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:800;text-decoration:none}
.v17-tabs a:hover,.v17-tabs a.active{color:#fff;background:#5b5ce2}
.v17-stat-grid{margin-bottom:14px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.v17-stat{min-height:105px;padding:15px;border:1px solid #e2e7ef;border-radius:15px;background:#fff;display:grid;grid-template-columns:46px minmax(0,1fr);gap:11px;align-items:center;box-shadow:0 5px 18px rgba(15,23,42,.025)}
.v17-stat>span{width:46px;height:46px;border-radius:12px;color:#5b5ce2;background:#efedff;display:grid;place-items:center;font-size:20px}
.v17-stat small{display:block;color:#667085;font-size:11.5px;font-weight:700}
.v17-stat strong{display:block;margin-top:4px;color:#101828;font-size:28px;font-weight:900;line-height:1}
.v17-card,.v17-panel,.v17-filter{border:1px solid #e2e7ef;border-radius:16px;background:#fff;box-shadow:0 5px 20px rgba(15,23,42,.025)}
.v17-filter{margin-bottom:14px;padding:13px}
.v17-filter-grid{display:grid;grid-template-columns:minmax(240px,1.4fr) repeat(4,minmax(140px,.7fr)) auto;gap:9px;align-items:end}
.v17-panel{overflow:hidden}
.v17-panel-head{min-height:72px;padding:14px 16px;border-bottom:1px solid #edf0f4;display:flex;align-items:center;justify-content:space-between;gap:12px}
.v17-panel-head h2,.v17-panel-head h3{margin:0;color:#25324a;font-size:17px;font-weight:850}
.v17-panel-head p{margin:3px 0 0;color:#748097;font-size:11.5px}
.v17-page .form-label{margin-bottom:5px;color:#344054;font-size:13px;font-weight:800}
.v17-page .form-control,.v17-page .form-select{min-height:47px;border-color:#d7deea;border-radius:10px;color:#344054;font-size:14px}
.v17-page textarea.form-control{min-height:110px}
.v17-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}
.v17-form-grid .full{grid-column:1/-1}
.v17-form-section{padding:16px;border:1px solid #e2e7ef;border-radius:15px;background:#fff}
.v17-section-title{margin-bottom:13px;display:flex;align-items:center;gap:10px}
.v17-section-title span{width:40px;height:40px;border-radius:11px;color:#5b5ce2;background:#efedff;display:grid;place-items:center;font-size:17px}
.v17-section-title strong{display:block;color:#344054;font-size:14px;font-weight:850}
.v17-section-title small{display:block;margin-top:2px;color:#758196;font-size:10.5px}
.v17-toggle{min-height:65px;padding:10px;border:1px solid #e3e8f0;border-radius:10px;background:#fbfcfe;display:flex;gap:9px;cursor:pointer}
.v17-toggle input{margin-top:3px;accent-color:#5b5ce2}
.v17-toggle strong{display:block;color:#344054;font-size:12px;font-weight:800}
.v17-toggle small{display:block;margin-top:3px;color:#748097;font-size:10px;line-height:1.5}
.v17-badge{min-height:28px;padding:0 9px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:10.5px;font-weight:900}
.v17-badge.free,.v17-badge.active,.v17-badge.published,.v17-badge.paid,.v17-badge.completed{color:#08783b;background:#e7f8ee}
.v17-badge.paidbook,.v17-badge.pending,.v17-badge.draft{color:#9a5800;background:#fff4dc}
.v17-badge.private,.v17-badge.archived,.v17-badge.inactive,.v17-badge.failed,.v17-badge.refunded{color:#b42318;background:#fff0ef}
.v17-table-wrap{overflow:auto}
.v17-table{width:100%;min-width:1050px;border-collapse:collapse}
.v17-table th{padding:11px 12px;border-bottom:1px solid #e3e8ef;color:#56647a;background:#f8f9fb;font-size:11.5px;font-weight:900;text-align:left}
.v17-table td{padding:11px 12px;border-bottom:1px solid #edf0f4;color:#344054;font-size:13px;vertical-align:middle}
.v17-table tr:last-child td{border-bottom:0}
.ebook-mini{display:flex;align-items:center;gap:10px}
.ebook-mini-cover{width:44px;height:60px;flex:0 0 auto;border-radius:7px;overflow:hidden;color:#5b5ce2;background:#efedff;display:grid;place-items:center;font-size:17px}
.ebook-mini-cover img{width:100%;height:100%;object-fit:cover}
.ebook-mini strong{display:block;color:#25324a;font-size:12.5px;font-weight:850}
.ebook-mini small{display:block;margin-top:2px;color:#7b8798;font-size:10px}
.ebook-admin-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:14px;align-items:start}
.ebook-admin-side{position:sticky;top:88px;display:grid;gap:12px}
.ebook-image-preview{min-height:225px;border:1px dashed #cfd7e4;border-radius:13px;background:#f8fafc;overflow:hidden;display:grid;place-items:center;color:#8a96a8}
.ebook-image-preview img{width:100%;height:100%;max-height:320px;object-fit:cover}
.ebook-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ebook-category-card{overflow:hidden;border:1px solid #e2e7ef;border-radius:15px;background:#fff}
.ebook-category-banner{height:120px;background:linear-gradient(135deg,#eef0ff,#f8f9fc);position:relative;display:grid;place-items:center;color:#9ca8b9;font-size:34px;overflow:hidden}
.ebook-category-banner img{width:100%;height:100%;object-fit:cover}
.ebook-category-body{padding:12px}
.ebook-category-body strong{display:block;color:#27354c;font-size:14px}
.ebook-category-body small{display:block;margin-top:3px;color:#7b8799;font-size:10.5px}
.ebook-category-child{margin-top:9px;padding:7px 0;border-top:1px solid #edf0f4;display:flex;align-items:center;justify-content:space-between;gap:8px;color:#59677d;font-size:11px}
.ebook-public-toolbar{margin-bottom:18px;padding:14px;border:1px solid #e1e6ee;border-radius:14px;background:#fff}
.ebook-public-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.ebook-public-card{overflow:hidden;border:1px solid #e1e6ee;border-radius:16px;background:#fff;box-shadow:0 7px 22px rgba(15,23,42,.04);transition:.2s ease}
.ebook-public-card:hover{transform:translateY(-3px);box-shadow:0 11px 30px rgba(15,23,42,.08)}
.ebook-cover-wrap{height:285px;background:linear-gradient(135deg,#f0f1ff,#f8f9fb);overflow:hidden;position:relative}
.ebook-cover-wrap img{width:100%;height:100%;object-fit:cover}
.ebook-cover-placeholder{width:100%;height:100%;display:grid;place-items:center;color:#8e99aa;font-size:48px}
.ebook-price-pill{position:absolute;left:10px;bottom:10px;min-height:32px;padding:0 10px;border-radius:999px;color:#fff;background:rgba(20,27,45,.88);display:flex;align-items:center;font-size:11px;font-weight:900}
.ebook-public-body{padding:14px}
.ebook-public-body .category{color:#5b5ce2;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.05em}
.ebook-public-body h3{margin:5px 0 4px;color:#202d44;font-size:16px;line-height:1.35;font-weight:850}
.ebook-public-body p{min-height:42px;margin:0;color:#6e7b90;font-size:11px;line-height:1.6}
.ebook-card-meta{margin-top:10px;display:flex;align-items:center;justify-content:space-between;gap:8px;color:#788498;font-size:10px}
.ebook-detail-hero{padding:44px 0;background:linear-gradient(135deg,#20284f,#5b5ce2);color:#fff}
.ebook-detail-grid{display:grid;grid-template-columns:280px minmax(0,1fr) 330px;gap:25px;align-items:start}
.ebook-detail-cover{border:5px solid rgba(255,255,255,.15);border-radius:15px;overflow:hidden;box-shadow:0 18px 40px rgba(0,0,0,.2)}
.ebook-detail-cover img{width:100%;display:block}
.ebook-detail-cover .placeholder{height:390px;background:rgba(255,255,255,.08);display:grid;place-items:center;font-size:55px}
.ebook-detail-copy h1{margin:7px 0;color:#fff;font:800 34px/1.22 Poppins,Inter,sans-serif}
.ebook-detail-copy p{max-width:750px;color:rgba(255,255,255,.78);font-size:13px;line-height:1.75}
.ebook-detail-meta{margin-top:15px;display:flex;gap:8px;flex-wrap:wrap}
.ebook-detail-meta span{min-height:31px;padding:0 10px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.07);display:inline-flex;align-items:center;gap:6px;font-size:10.5px;font-weight:700}
.ebook-buy-card{padding:17px;border-radius:15px;color:#344054;background:#fff;box-shadow:0 15px 35px rgba(0,0,0,.18)}
.ebook-buy-price{font-size:29px;font-weight:900;color:#202d44}
.ebook-buy-old{margin-left:6px;color:#98a2b3;text-decoration:line-through;font-size:12px}
.coupon-box{margin-top:12px;padding:11px;border:1px dashed #cbd3e0;border-radius:11px;background:#fbfcfe}
.coupon-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px}
.coupon-result{margin-top:8px;padding:8px;border-radius:8px;color:#08783b;background:#eaf8ef;font-size:11px;font-weight:700;display:none}
.coupon-result.error{color:#b42318;background:#fff0ef}
.library-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.library-card{overflow:hidden;border:1px solid #e2e7ef;border-radius:16px;background:#fff;box-shadow:0 5px 18px rgba(15,23,42,.035)}
.library-card-cover{height:235px;background:#f2f4f8;overflow:hidden}
.library-card-cover img{width:100%;height:100%;object-fit:cover}
.library-card-body{padding:13px}
.library-card-body h3{margin:0 0 4px;color:#25324a;font-size:15px;font-weight:850}
.library-progress{margin:10px 0 4px;height:7px;border-radius:999px;background:#edf0f5;overflow:hidden}
.library-progress>span{height:100%;border-radius:999px;background:#5b5ce2;display:block}
.reader-shell{min-height:100vh;color:#e8ecf4;background:#141922;display:grid;grid-template-rows:auto minmax(0,1fr)}
.reader-topbar{min-height:68px;padding:9px 14px;border-bottom:1px solid rgba(255,255,255,.08);background:#1d2430;display:flex;align-items:center;justify-content:space-between;gap:10px}
.reader-title{min-width:0;display:flex;align-items:center;gap:10px}
.reader-title strong{display:block;color:#fff;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.reader-title small{display:block;color:#8f9aae;font-size:9.5px}
.reader-actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.reader-btn{min-width:40px;min-height:40px;padding:0 10px;border:1px solid rgba(255,255,255,.1);border-radius:9px;color:#dbe2ee;background:#252d3a;display:inline-flex;align-items:center;justify-content:center;gap:5px;font-size:11px;font-weight:800;cursor:pointer}
.reader-btn:hover,.reader-btn.active{color:#fff;background:#5b5ce2}
.reader-layout{min-height:0;display:grid;grid-template-columns:300px minmax(0,1fr)}
.reader-sidebar{min-height:0;border-right:1px solid rgba(255,255,255,.08);background:#1b222d;overflow:auto}
.reader-side-section{padding:13px;border-bottom:1px solid rgba(255,255,255,.07)}
.reader-side-section h3{margin:0 0 9px;color:#fff;font-size:12px;font-weight:850}
.reader-side-link{width:100%;padding:8px;border:0;border-radius:7px;color:#b8c2d1;background:transparent;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:10.5px;text-align:left;cursor:pointer}
.reader-side-link:hover{color:#fff;background:#252e3d}
.reader-stage{min-width:0;min-height:0;position:relative;overflow:auto;background:radial-gradient(circle at 50% 20%,#28313f,#131820 65%);display:flex;align-items:flex-start;justify-content:center;padding:26px}
.reader-book{display:flex;gap:6px;align-items:flex-start;justify-content:center;perspective:1700px}
.reader-page{background:#fff;box-shadow:0 14px 32px rgba(0,0,0,.3);transition:transform .28s ease,opacity .28s ease;transform-origin:left center}
.reader-page.turn{transform:rotateY(-9deg);opacity:.9}
.reader-page canvas{display:block;max-width:100%;height:auto}
.reader-watermark{pointer-events:none;position:fixed;inset:0;z-index:20;display:grid;place-items:center;overflow:hidden}
.reader-watermark span{color:rgba(80,86,115,.13);font-size:20px;font-weight:900;transform:rotate(-28deg);white-space:nowrap}
.reader-bottom{position:fixed;left:50%;bottom:16px;z-index:30;transform:translateX(-50%);min-height:48px;padding:5px 8px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(24,30,40,.94);display:flex;align-items:center;gap:6px;box-shadow:0 10px 28px rgba(0,0,0,.28)}
.reader-page-input{width:58px;height:36px;border:1px solid rgba(255,255,255,.12);border-radius:8px;color:#fff;background:#111722;text-align:center;font-size:11px}
.reader-progress-text{min-width:95px;color:#aeb8c8;font-size:10px;text-align:center}
.reader-note-form textarea{width:100%;min-height:90px;padding:8px;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#e6ebf3;background:#111722;font-size:11px}
.reader-search{display:flex;gap:5px}
.reader-search input{min-width:0;width:100%;height:37px;padding:0 8px;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#e6ebf3;background:#111722;font-size:10px}
.reader-search-results{margin-top:7px;color:#9facbd;font-size:10px}
@media(max-width:1200px){.v17-filter-grid{grid-template-columns:1fr 1fr 1fr}.v17-filter-grid>div:first-child{grid-column:1/-1}.ebook-admin-grid{grid-template-columns:1fr}.ebook-admin-side{position:static}.ebook-public-grid,.library-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.ebook-detail-grid{grid-template-columns:220px minmax(0,1fr)}.ebook-buy-card{grid-column:1/-1}.reader-layout{grid-template-columns:250px minmax(0,1fr)}}
@media(max-width:900px){.v17-head{flex-direction:column}.v17-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.v17-form-grid{grid-template-columns:1fr}.v17-form-grid .full{grid-column:auto}.ebook-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ebook-public-grid,.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.ebook-detail-grid{grid-template-columns:190px minmax(0,1fr)}.reader-layout{grid-template-columns:1fr}.reader-sidebar{position:fixed;left:0;top:68px;bottom:0;z-index:35;width:min(86vw,320px);transform:translateX(-105%);transition:.2s ease;box-shadow:12px 0 30px rgba(0,0,0,.3)}.reader-sidebar.open{transform:translateX(0)}.reader-stage{padding:14px 8px 80px}.reader-page.second{display:none!important}}
@media(max-width:620px){.v17-stat-grid,.v17-filter-grid,.ebook-category-grid,.ebook-public-grid,.library-grid{grid-template-columns:1fr}.v17-filter-grid>div:first-child{grid-column:auto}.v17-head h1{font-size:25px}.ebook-detail-grid{grid-template-columns:1fr}.ebook-detail-cover{max-width:220px;margin:0 auto}.ebook-detail-copy h1{font-size:27px}.reader-topbar{align-items:flex-start}.reader-title{max-width:45%}.reader-actions{justify-content:flex-end}.reader-book{width:100%}.reader-page{max-width:100%}.reader-bottom{width:calc(100% - 18px);justify-content:center}}