/* ===== RESET & BASE ===== */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI','Helvetica Neue',Arial,sans-serif;color:#222;background:#fff;font-size:15px}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{cursor:pointer;border:none;outline:none;background:none}
ul{list-style:none}
/* ===== TOPBAR ===== */
.topbar{background:#3A5C20;color:rgba(255,255,255,.9);font-size:13px;padding:6px 0;text-align:center}
.topbar span{margin:0 16px}
.topbar a{color:#b5e05a;font-weight:600}
/* ===== HEADER ===== */
.header{background:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:1000;box-shadow:0 1px 8px rgba(0,0,0,.06)}
.header-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:70px;gap:20px}
.logo-wrap{flex-shrink:0;display:flex;align-items:center}
.logo-wrap img{height:54px;object-fit:contain}
.nav-main{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-item{position:relative}
.nav-item>a,.nav-item>span{display:flex;align-items:center;gap:4px;padding:8px 14px;font-size:14.5px;font-weight:500;color:#222;border-radius:6px;cursor:pointer;white-space:nowrap;transition:color .2s}
.nav-item>a:hover,.nav-item>span:hover,.nav-item.active>a{color:#3A5C20}
.nav-item>a.active{color:#3A5C20;font-weight:700}
.nav-caret{font-size:10px;opacity:.5}
.dropdown{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid #eee;border-radius:8px;min-width:200px;box-shadow:0 8px 24px rgba(0,0,0,.1);z-index:100;padding:8px 0}
.nav-item:hover .dropdown{display:block}
.dropdown a{display:block;padding:9px 18px;font-size:13.5px;color:#444;transition:all .15s}
.dropdown a:hover{background:#f5f5f5;color:#3A5C20;padding-left:22px}
.header-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}
.action-btn{position:relative;width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:19px;color:#444;transition:all .2s;cursor:pointer}
.action-btn:hover{background:#f5f5f5;color:#3A5C20}
.cart-count{position:absolute;top:2px;right:2px;background:#e53935;color:#fff;border-radius:50%;width:18px;height:18px;font-size:10px;display:flex;align-items:center;justify-content:center;font-weight:700}
.search-bar-header{display:flex;align-items:center;background:#f5f5f5;border-radius:8px;overflow:hidden;border:1.5px solid transparent;transition:border .2s;flex:1;max-width:340px}
.search-bar-header:focus-within{border-color:#7DAA33;background:#fff}
.search-bar-header input{border:none;background:transparent;padding:9px 14px;font-size:14px;flex:1;outline:none;color:#222}
.search-bar-header button{padding:8px 12px;color:#666;font-size:16px}
.search-bar-header button:hover{color:#3A5C20}
/* ===== HERO ===== */
.hero{background:linear-gradient(135deg,#2A4415 0%,#3A5C20 30%,#527A28 60%,#6B8E3A 100%);padding:40px 24px;overflow:hidden;position:relative}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Ccircle cx='30' cy='30' r='28' fill='none' stroke='rgba(255,255,255,.04)' stroke-width='2'/%3E%3C/svg%3E") center/60px repeat}
.hero-inner{max-width:1280px;margin:0 auto;text-align:center}
.hero-label{display:inline-block;background:rgba(255,255,255,.2);color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:50px;padding:5px 18px;font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:12px;text-transform:uppercase}
.hero-title{font-size:2.6rem;font-weight:900;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.2);margin-bottom:8px;letter-spacing:.5px;text-transform:uppercase}
.hero-sub{color:rgba(255,255,255,.85);font-size:15px;margin-bottom:28px}
.hero-books{display:grid;grid-template-columns:repeat(7,1fr);gap:16px;max-width:1100px;margin:0 auto}
.hero-book{cursor:pointer;transition:transform .2s}
.hero-book:hover{transform:translateY(-6px)}
.hero-book img{width:100%;height:150px;object-fit:contain;border-radius:6px;box-shadow:0 8px 20px rgba(0,0,0,.3);background:#fff;padding:4px}
.hero-book p{color:#fff;font-size:11.5px;text-align:center;margin-top:6px;line-height:1.3;font-weight:500;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hero-dots{display:flex;gap:8px;justify-content:center;margin-top:24px}
.hero-dot{width:24px;height:4px;border-radius:2px;background:rgba(255,255,255,.4);cursor:pointer;transition:background .2s}
.hero-dot.active{background:#fff}
.hero-btns{display:flex;gap:12px;justify-content:center;margin-top:20px}
.btn-hero-primary{background:#fff;color:#3A5C20;padding:11px 28px;border-radius:6px;font-size:14px;font-weight:700;transition:all .2s;letter-spacing:.3px}
.btn-hero-primary:hover{background:#e8f7d0;transform:translateY(-1px)}
.btn-hero-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7);padding:9px 26px;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}
.btn-hero-outline:hover{border-color:#fff;background:rgba(255,255,255,.15)}
/* ===== FEATURES ===== */
.features{background:#fff;border-bottom:1px solid #eee}
.features-inner{max-width:1280px;margin:0 auto;display:flex;justify-content:space-around;padding:16px 24px;flex-wrap:wrap;gap:8px}
.feat{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#444}
.feat-icon{width:36px;height:36px;border-radius:50%;background:#EFF7E4;display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0}
/* ===== MAIN ===== */
.main{max-width:1280px;margin:0 auto;padding:0 24px}
/* ===== SECTION HEADER ===== */
.sec-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-top:36px;border-top:2px solid #f0f0f0}
.sec-head:first-child{border-top:none;padding-top:28px}
.sec-title{font-size:1.35rem;font-weight:900;color:#111;letter-spacing:.3px;text-transform:uppercase;display:flex;align-items:center;gap:8px}
.sec-more{display:flex;align-items:center;gap:6px;border:1.5px solid #ccc;border-radius:4px;padding:7px 16px;font-size:13px;font-weight:600;color:#444;transition:all .2s;cursor:pointer;white-space:nowrap}
.sec-more:hover{border-color:#3A5C20;color:#3A5C20}
/* ===== CAT PILLS ===== */
.cat-pills{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;margin-bottom:20px;scrollbar-width:none}
.cat-pills::-webkit-scrollbar{display:none}
.cat-pill{flex-shrink:0;padding:7px 18px;border-radius:50px;border:1.5px solid #ddd;background:#fff;font-size:13.5px;color:#555;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}
.cat-pill:hover{border-color:#527A28;color:#3A5C20}
.cat-pill.active{background:#3A5C20;border-color:#3A5C20;color:#fff}
/* ===== BOOK GRID ===== */
.book-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-bottom:24px}
.book-card{cursor:pointer;transition:all .2s;border-radius:6px;overflow:hidden;background:#fff}
.book-card:hover{box-shadow:0 6px 24px rgba(0,0,0,.12)}
.book-cover{position:relative;overflow:hidden;background:#f8faf4;height:230px;display:flex;align-items:center;justify-content:center}
.book-cover img{width:100%;height:100%;object-fit:contain;transition:transform .3s;display:block;padding:4px}
.book-card:hover .book-cover img{transform:scale(1.04)}
.badge-discount{position:absolute;top:8px;left:8px;background:#e53935;color:#fff;border-radius:50%;width:38px;height:38px;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;line-height:1.1;text-align:center}
.badge-new-tag{position:absolute;top:8px;right:8px;background:#7DAA33;color:#fff;border-radius:4px;font-size:11px;font-weight:700;padding:3px 7px}
.badge-hot{position:absolute;top:8px;right:8px;background:#ff6b00;color:#fff;border-radius:4px;font-size:11px;font-weight:700;padding:3px 7px}
.sold-badge{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.5));color:#fff;font-size:11px;padding:16px 8px 6px;text-align:center}
.book-info{padding:10px 4px 12px}
.book-name{font-size:13.5px;font-weight:600;color:#222;line-height:1.4;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:38px}
.book-author{font-size:12px;color:#888;margin-bottom:8px}
.price-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.price-sale{font-size:15px;font-weight:800;color:#e53935}
.price-orig{font-size:12px;color:#aaa;text-decoration:line-through}
.book-actions{display:flex;gap:6px;margin-top:10px}
.btn-add-cart{flex:1;background:#3A5C20;color:#fff;border-radius:5px;padding:8px 4px;font-size:12.5px;font-weight:600;transition:background .2s;text-align:center}
.btn-add-cart:hover{background:#527A28}
.btn-tiki-link{background:#7DAA33;color:#fff;border-radius:5px;padding:8px 10px;font-size:12px;font-weight:600;transition:background .2s;white-space:nowrap}
.btn-tiki-link:hover{background:#4D7A1F}
.view-all-wrap{text-align:center;margin:4px 0 32px}
.btn-view-all{display:inline-flex;align-items:center;gap:6px;border:1.5px solid #ccc;border-radius:5px;padding:10px 32px;font-size:14px;font-weight:600;color:#444;transition:all .2s;cursor:pointer}
.btn-view-all:hover{border-color:#3A5C20;color:#3A5C20}
/* ===== TOP SELLERS ===== */
.topseller-section{background:linear-gradient(135deg,#2A4415 0%,#3A5C20 50%,#4D7A1F 100%);padding:40px 24px;margin:0 -24px}
.topseller-inner{max-width:1280px;margin:0 auto}
.topseller-inner .sec-title{color:#fff}
.topseller-inner .sec-head{border-top-color:rgba(255,255,255,.15)}
.topseller-inner .sec-more{border-color:rgba(255,255,255,.4);color:rgba(255,255,255,.8)}
.topseller-inner .sec-more:hover{border-color:#7DAA33;color:#7DAA33}
.topseller-inner .book-name{color:#fff}
.topseller-inner .book-author{color:rgba(255,255,255,.6)}
.topseller-inner .book-card{background:rgba(255,255,255,.06);border-radius:8px}
.topseller-inner .book-card:hover{background:rgba(255,255,255,.1)}
.topseller-inner .price-orig{color:rgba(255,255,255,.4)}
/* ===== PUBLISHING CONSULT ===== */
.consult-section{background:linear-gradient(135deg,#f4f9ee 0%,#fbfff5 100%);padding:56px 24px;margin:0 -24px;border-top:1px solid #d9edc2;border-bottom:1px solid #d9edc2}
.consult-inner{max-width:1280px;margin:0 auto}
.consult-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.consult-text h2{font-size:2rem;font-weight:900;color:#3A5C20;text-transform:uppercase;line-height:1.2;margin-bottom:12px}
.consult-text h2 span{color:#7DAA33}
.consult-text p{font-size:15px;color:#555;line-height:1.8;margin-bottom:20px}
.consult-steps{display:flex;flex-direction:column;gap:14px;margin-bottom:28px}
.consult-step{display:flex;gap:14px;align-items:flex-start}
.step-num{width:36px;height:36px;border-radius:50%;background:#3A5C20;color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;flex-shrink:0}
.step-content h4{font-size:14.5px;font-weight:700;color:#3A5C20;margin-bottom:3px}
.step-content p{font-size:13px;color:#666;line-height:1.5}
.consult-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn-consult-main{background:#3A5C20;color:#fff;padding:13px 28px;border-radius:7px;font-size:15px;font-weight:700;transition:all .2s;display:inline-flex;align-items:center;gap:8px}
.btn-consult-main:hover{background:#527A28;transform:translateY(-1px)}
.btn-consult-zalo{background:#0068FF;color:#fff;padding:13px 28px;border-radius:7px;font-size:15px;font-weight:700;transition:all .2s;display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer}
.btn-consult-zalo:hover{background:#0055cc;transform:translateY(-1px)}
.consult-visual{display:flex;flex-direction:column;gap:14px}
.consult-card{background:#fff;border-radius:12px;padding:20px;border:1px solid #d9edc2;box-shadow:0 4px 16px rgba(58,92,32,.06)}
.consult-card h4{font-size:15px;font-weight:700;color:#3A5C20;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.consult-card p{font-size:13.5px;color:#666;line-height:1.6}
.consult-card .tag{display:inline-block;background:#e8f4e0;color:#4D7A1F;border-radius:4px;padding:3px 10px;font-size:12px;font-weight:600;margin-top:8px;margin-right:4px}
.consult-tag-green{background:#e8f4e0;color:#4D7A1F}
.consult-tag-blue{background:#e6f0ff;color:#3A5C20}
.consult-tag-orange{background:#fff3e0;color:#e65100}
/* ===== BLOG ===== */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:24px}
.blog-card{border-radius:8px;overflow:hidden;border:1px solid #eee;transition:all .2s;cursor:pointer}
.blog-card:hover{box-shadow:0 6px 24px rgba(0,0,0,.1);transform:translateY(-3px)}
.blog-thumb{width:100%;height:190px;object-fit:cover;background:#f0f0f0}
.blog-thumb-ph{width:100%;height:190px;display:flex;align-items:center;justify-content:center;font-size:50px;background:linear-gradient(135deg,#3A5C20 0%,#527A28 60%,#6B8E3A 100%)}
.blog-body{padding:16px}
.blog-tag-pill{display:inline-block;background:#e8f4e0;color:#4D7A1F;font-size:11px;font-weight:700;padding:3px 10px;border-radius:50px;margin-bottom:8px;text-transform:uppercase;letter-spacing:.3px}
.blog-body h3{font-size:15px;font-weight:700;color:#111;margin-bottom:7px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-body p{font-size:13px;color:#777;line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.blog-meta{display:flex;gap:14px;font-size:12px;color:#aaa}
/* ===== SOCIAL CONNECT ===== */
.social-section{background:#3A5C20;padding:40px 24px;margin:0 -24px}
.social-inner{max-width:1280px;margin:0 auto;display:flex;gap:32px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.social-text h3{font-size:1.35rem;font-weight:800;color:#fff;margin-bottom:6px}
.social-text p{color:rgba(255,255,255,.75);font-size:14px}
.social-links{display:flex;gap:10px;flex-wrap:wrap}
.soc-btn{display:flex;align-items:center;gap:8px;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;transition:all .2s;cursor:pointer;border:none}
.soc-fb{background:#1877F2;color:#fff}.soc-fb:hover{background:#0d6fd4}
.soc-zalo{background:#0068FF;color:#fff}.soc-zalo:hover{background:#0055cc}
.soc-tiktok{background:#111;color:#fff}.soc-tiktok:hover{background:#333}
.soc-ig{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888);color:#fff}.soc-ig:hover{filter:brightness(1.1)}
.soc-tiki{background:#1A94FF;color:#fff}.soc-tiki:hover{background:#0d7de0}
.zalo-float{position:fixed;bottom:24px;right:24px;z-index:500;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.float-btn{width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:0 4px 16px rgba(0,0,0,.2);cursor:pointer;transition:all .2s}
.float-zalo{background:#0068FF;color:#fff;animation:pulse 2s infinite}
.float-fb{background:#1877F2;color:#fff;animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{box-shadow:0 4px 16px rgba(0,0,0,.2)}50%{box-shadow:0 4px 24px rgba(0,104,255,.5)}}
.float-btn:hover{transform:scale(1.1)}
/* ===== FOOTER ===== */
footer{background:#1E3008;color:rgba(255,255,255,.7);padding:36px 24px 20px}
.footer-inner{max-width:1280px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:36px;margin-bottom:28px}
.footer-logo img{height:46px;margin-bottom:12px}
.footer-col p,.footer-col li{font-size:13px;line-height:1.9}
.footer-col h4{color:#fff;font-size:13.5px;font-weight:700;margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}
.footer-col a:hover{color:#7DAA33}
.footer-divider{border:none;border-top:1px solid rgba(255,255,255,.08);margin:0 0 16px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;flex-wrap:wrap;gap:8px}
.footer-bottom-links{display:flex;gap:16px}
.footer-bottom-links a:hover{color:#7DAA33}
/* ===== MODAL ===== */
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:2000;overflow-y:auto;backdrop-filter:blur(2px)}
.overlay.open{display:flex;align-items:flex-start;justify-content:center;padding:32px 16px}
.modal{background:#fff;border-radius:12px;max-width:760px;width:100%;overflow:hidden;animation:up .25s ease;position:relative}
@keyframes up{from{transform:translateY(24px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-layout{display:grid;grid-template-columns:1fr 1.4fr}
.modal-img-wrap{background:#f8faf4;padding:24px;display:flex;align-items:center;justify-content:center}
.modal-img-wrap img{width:100%;height:320px;object-fit:contain;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.15)}
.modal-detail{padding:24px}
.modal-cat-tag{display:inline-block;background:#e8f4e0;color:#4D7A1F;border-radius:4px;padding:3px 10px;font-size:12px;font-weight:600;margin-bottom:10px}
.modal-name{font-size:1.2rem;font-weight:800;color:#111;line-height:1.35;margin-bottom:6px}
.modal-auth{font-size:13px;color:#888;margin-bottom:12px}
.modal-rating{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.stars{color:#f5a623;font-size:14px;letter-spacing:1px}
.modal-price-row{display:flex;align-items:baseline;gap:12px;margin-bottom:14px}
.modal-price{font-size:1.5rem;font-weight:900;color:#e53935}
.modal-orig{font-size:13px;color:#aaa;text-decoration:line-through}
.modal-disc-badge{background:#e53935;color:#fff;border-radius:50px;padding:2px 10px;font-size:12px;font-weight:700}
.modal-desc{font-size:13.5px;color:#555;line-height:1.75;margin-bottom:18px;max-height:120px;overflow-y:auto}
.modal-btns{display:flex;gap:10px}
.modal-btns button,.modal-btns a{flex:1;padding:11px;border-radius:7px;font-size:14px;font-weight:700;text-align:center;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px}
.btn-modal-cart{background:#3A5C20;color:#fff;border:none;cursor:pointer}
.btn-modal-cart:hover{background:#527A28}
.btn-modal-tiki{background:#7DAA33;color:#fff}
.btn-modal-tiki:hover{background:#4D7A1F}
.modal-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;background:rgba(0,0,0,.08);display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;z-index:10;transition:background .2s}
.modal-close:hover{background:rgba(0,0,0,.15)}
/* ===== CART DRAWER ===== */
.cart-bg{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:2900}
.cart-bg.open{display:block}
.cart-drawer{position:fixed;top:0;right:-420px;height:100vh;width:380px;background:#fff;z-index:3000;box-shadow:-4px 0 32px rgba(0,0,0,.12);transition:right .3s;display:flex;flex-direction:column}
.cart-drawer.open{right:0}
.cart-drawer-head{background:#3A5C20;color:#fff;padding:18px 20px;display:flex;align-items:center;justify-content:space-between}
.cart-drawer-head h3{font-size:16px;font-weight:700}
.cart-drawer-head button{background:rgba(255,255,255,.15);color:#fff;width:30px;height:30px;border-radius:50%;font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none}
.cart-list{flex:1;overflow-y:auto;padding:12px 16px}
.cart-empty{text-align:center;padding:60px 20px;color:#999}
.cart-empty .cart-empty-icon{font-size:60px;display:block;margin-bottom:12px;opacity:.3}
.cart-row{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid #f0f0f0}
.cart-row img{width:60px;height:80px;object-fit:contain;border-radius:6px;flex-shrink:0;background:#f8faf4}
.ci-info{flex:1}
.ci-info h4{font-size:13px;font-weight:600;line-height:1.3;margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ci-price{font-size:14px;font-weight:800;color:#e53935;margin-bottom:6px}
.qty-row{display:flex;align-items:center;gap:8px}
.qty-row button{width:26px;height:26px;border-radius:5px;border:1px solid #ddd;background:#f5f5f5;font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer}
.qty-row span{font-size:14px;font-weight:700;min-width:20px;text-align:center}
.ci-del{color:#ccc;font-size:18px;cursor:pointer;transition:color .2s;padding:4px;align-self:flex-start}
.ci-del:hover{color:#e53935}
.cart-foot{padding:18px;border-top:1px solid #eee;background:#fafafa}
.cart-total-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.cart-total-row span{font-size:14px;color:#666}
.cart-total-row strong{font-size:1.25rem;font-weight:900;color:#3A5C20}
.btn-checkout-main{width:100%;background:#7DAA33;color:#fff;padding:13px;border-radius:7px;font-size:15px;font-weight:700;cursor:pointer;transition:background .2s;border:none;margin-bottom:8px}
.btn-checkout-main:hover{background:#4D7A1F}
.btn-zalo-order{width:100%;background:#0068FF;color:#fff;padding:11px;border-radius:7px;font-size:14px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;border:none;transition:background .2s}
.btn-zalo-order:hover{background:#0055cc}
/* ===== TOAST ===== */
.toast{position:fixed;bottom:80px;right:24px;background:#3A5C20;color:#fff;padding:12px 20px;border-radius:8px;font-size:14px;font-weight:500;z-index:9999;box-shadow:0 4px 20px rgba(0,0,0,.2);animation:fadein .3s ease;pointer-events:none}
.toast.hide{display:none}
@keyframes fadein{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
/* ===== NO RESULTS ===== */
#no-results{display:none;text-align:center;padding:60px 20px;color:#999}
/* ===== RESPONSIVE ===== */
@media(max-width:960px){
  .book-grid{grid-template-columns:repeat(3,1fr)}
  .hero-books{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .consult-grid{grid-template-columns:1fr}
  .modal-layout{grid-template-columns:1fr}
  .modal-img-wrap{display:none}
}
@media(max-width:640px){
  .book-grid{grid-template-columns:repeat(2,1fr)}
  .blog-grid{grid-template-columns:1fr}
  .hero-title{font-size:1.8rem}
  .hero-books{grid-template-columns:repeat(3,1fr)}
  .cart-drawer{width:100%}
  .nav-main{display:none}
  .footer-grid{grid-template-columns:1fr}
}