/*
Theme Name: Dầu Dừa Vietcoco
Theme URI: https://dauduavietcoco.local/
Author: Vietcoco Affiliate
Author URI: https://dauduavietcoco.local/
Description: Custom theme cho trang affiliate dầu dừa Vietcoco. Clean, nhẹ, mobile-first, chuẩn SEO.
Version: 5.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 7.4
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: dauduavietcoco
Tags: affiliate, blog, custom-colors, custom-logo, custom-menu, featured-images, threaded-comments
*/

/* ===== CSS VARIABLES ===== */
:root{
    --green-deep:#1a5c38;
    --green-main:#2d8a56;
    --green-light:#e8f5e9;
    --cream:#faf8f2;
    --gold:#c8a84e;
    --gold-dark:#a78832;
    --text-dark:#1a1a18;
    --text-body:#3d3d3a;
    --white:#ffffff;
    --border:#e6e3d8;
    --red:#d6342c;
    --shadow-sm:0 1px 3px rgba(0,0,0,.06);
    --shadow:0 4px 16px rgba(26,92,56,.08);
    --shadow-lg:0 12px 32px rgba(26,92,56,.12);
    --radius:10px;
    --radius-lg:18px;
    --container:1100px;
    --font-heading:'Playfair Display',Georgia,'Times New Roman',serif;
    --font-body:'Be Vietnam Pro',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    --header-h:72px;
}

/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);font-size:16px;line-height:1.65;color:var(--text-body);background:var(--cream);-webkit-font-smoothing:antialiased}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--green-main);text-decoration:none;transition:color .2s}
a:hover{color:var(--green-deep)}
ul,ol{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font:inherit}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--text-dark);line-height:1.25;font-weight:700;margin-bottom:.6em}
h1{font-size:clamp(1.9rem,4vw,2.8rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:clamp(1.2rem,2.4vw,1.5rem)}
h4{font-size:1.15rem}
p{margin-bottom:1em}

/* ===== LAYOUT ===== */
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:60px 0}
.section-tight{padding:40px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{position:relative;display:inline-block;padding-bottom:14px}
.section-title h2::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:var(--gold);border-radius:2px}
.section-title p{color:var(--text-body);max-width:600px;margin:0 auto}

/* ===== TOP BAR ===== */
.top-bar{background:var(--green-deep);color:var(--white);font-size:.82rem;padding:8px 0;text-align:center}
.top-bar a{color:var(--gold)}

/* ===== HEADER ===== */
.site-header{position:sticky;top:0;z-index:100;background:transparent;transition:background .25s,box-shadow .25s,padding .25s}
.site-header.scrolled{background:var(--white);box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.site-logo{font-family:var(--font-heading);font-size:1.45rem;font-weight:700;color:var(--green-deep);letter-spacing:.3px}
.site-logo span{color:var(--gold)}
.site-header.scrolled .site-logo{color:var(--green-deep)}

/* ===== NAV ===== */
.main-nav ul{display:flex;gap:28px;align-items:center}
.main-nav a{color:var(--text-dark);font-weight:500;font-size:.95rem;position:relative;padding:6px 0}
.main-nav a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold);transition:width .25s}
.main-nav a:hover::after,.main-nav .current-menu-item>a::after{width:100%}
.menu-toggle{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-toggle span{width:24px;height:2px;background:var(--text-dark);transition:.3s}
.menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== HERO ===== */
.hero{background:linear-gradient(135deg,var(--green-deep) 0%,var(--green-main) 100%);color:var(--white);padding:90px 0 100px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(200,168,78,.15) 0%,transparent 50%),radial-gradient(circle at 80% 70%,rgba(255,255,255,.08) 0%,transparent 50%)}
.hero-content{position:relative;z-index:1;max-width:780px;margin:0 auto;padding:0 20px}
.hero h1{color:var(--white);margin-bottom:18px}
.hero .lead{font-size:1.15rem;opacity:.95;margin-bottom:32px;max-width:620px;margin-left:auto;margin-right:auto}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== BUTTONS ===== */
.btn{display:inline-block;padding:13px 28px;border-radius:50px;font-weight:600;font-size:.95rem;letter-spacing:.3px;transition:all .25s;cursor:pointer;text-align:center;border:2px solid transparent}
.btn-primary{background:var(--gold);color:var(--text-dark);box-shadow:0 4px 14px rgba(200,168,78,.35)}
.btn-primary:hover{background:var(--gold-dark);color:var(--white);transform:translateY(-2px);box-shadow:0 6px 18px rgba(200,168,78,.45)}
.btn-outline{background:transparent;color:var(--white);border-color:var(--white)}
.btn-outline:hover{background:var(--white);color:var(--green-deep)}
.btn-lg{padding:16px 36px;font-size:1.05rem}
.btn-block{display:block;width:100%}

/* ===== PRODUCT GRID ===== */
.product-grid{display:grid;grid-template-columns:1fr;gap:24px}
.product-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.product-card-thumb{aspect-ratio:1/1;overflow:hidden;background:var(--green-light)}
.product-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.product-card:hover .product-card-thumb img{transform:scale(1.05)}
.product-card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.product-card-title{font-size:1.1rem;margin-bottom:8px}
.product-card-title a{color:var(--text-dark)}
.product-card-title a:hover{color:var(--green-main)}
.product-card-price{color:var(--red);font-weight:700;font-size:1.2rem;margin-bottom:14px;font-family:var(--font-body)}
.product-card-excerpt{font-size:.9rem;color:var(--text-body);margin-bottom:14px;flex:1}
.product-card .btn{margin-top:auto}

/* ===== POST GRID ===== */
.post-grid{display:grid;grid-template-columns:1fr;gap:28px}
.post-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s}
.post-card:hover{transform:translateY(-3px)}
.post-card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--green-light);display:block}
.post-card-thumb img{width:100%;height:100%;object-fit:cover}
.post-card-body{padding:22px}
.post-card-meta{font-size:.8rem;color:var(--text-body);opacity:.7;margin-bottom:10px;text-transform:uppercase;letter-spacing:.5px}
.post-card-title{font-size:1.2rem;margin-bottom:10px}
.post-card-title a{color:var(--text-dark)}
.post-card-title a:hover{color:var(--green-main)}
.post-card-excerpt{font-size:.92rem;margin-bottom:0}

/* ===== TOOL CARDS ===== */
.tool-grid{display:grid;grid-template-columns:1fr;gap:24px}
.tool-card{background:var(--white);padding:36px 28px;border-radius:var(--radius-lg);text-align:center;box-shadow:var(--shadow);border-top:4px solid var(--gold);transition:transform .25s}
.tool-card:hover{transform:translateY(-4px)}
.tool-card svg{width:56px;height:56px;margin:0 auto 16px;color:var(--green-main)}
.tool-card h3{margin-bottom:10px}
.tool-card p{font-size:.92rem;margin-bottom:18px}

/* ===== WHY US ===== */
.why-us{background:var(--green-light);padding:60px 0}
.why-grid{display:grid;grid-template-columns:1fr;gap:24px}
.why-item{background:var(--white);padding:28px 24px;border-radius:var(--radius);text-align:center}
.why-item .icon{width:60px;height:60px;background:var(--green-deep);color:var(--gold);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:1.6rem;font-weight:700}
.why-item h4{margin-bottom:8px;color:var(--green-deep)}
.why-item p{font-size:.9rem;margin-bottom:0}

/* ===== BREADCRUMBS ===== */
.breadcrumbs{padding:14px 0;font-size:.85rem;color:var(--text-body);background:var(--white);border-bottom:1px solid var(--border)}
.breadcrumbs a{color:var(--green-main)}
.breadcrumbs .sep{margin:0 8px;opacity:.5}

/* ===== SINGLE POST ===== */
.single-layout{display:grid;grid-template-columns:1fr;gap:40px;padding:40px 0 60px}
.entry-header{margin-bottom:24px}
.entry-title{margin-bottom:12px}
.entry-meta{font-size:.85rem;color:var(--text-body);opacity:.75}
.entry-meta span{margin-right:14px}
.entry-thumbnail{margin-bottom:28px;border-radius:var(--radius-lg);overflow:hidden}
.entry-content{font-size:1.02rem}
.entry-content h2{margin-top:1.6em}
.entry-content h3{margin-top:1.4em}
.entry-content img{border-radius:var(--radius);margin:1.2em 0}
.entry-content blockquote{border-left:4px solid var(--gold);padding:10px 20px;background:var(--cream);margin:1.2em 0;font-style:italic}
.entry-content ul,.entry-content ol{margin:0 0 1em 1.4em;list-style:disc}
.entry-content ol{list-style:decimal}
.entry-content li{margin-bottom:.4em}
.related-products{margin-top:50px;padding-top:40px;border-top:1px solid var(--border)}
.related-products h3{margin-bottom:24px}

/* ===== SINGLE PRODUCT ===== */
.product-single{padding:40px 0 60px}
.product-layout{display:grid;grid-template-columns:1fr;gap:30px;margin-bottom:40px}
.product-image{border-radius:var(--radius-lg);overflow:hidden;background:var(--green-light)}
.product-info h1{margin-bottom:14px}
.product-info .price{color:var(--red);font-size:2rem;font-weight:800;margin-bottom:18px;font-family:var(--font-body)}
.product-info .short-desc{font-size:1rem;margin-bottom:24px;padding:16px 18px;background:var(--cream);border-left:3px solid var(--gold);border-radius:6px}
.product-info .btn-buy{display:block;width:100%;padding:18px;font-size:1.1rem;text-transform:uppercase;letter-spacing:1px}
.product-description{background:var(--white);padding:30px;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}

/* ===== ARCHIVE ===== */
.archive-header{background:var(--green-light);padding:50px 0;text-align:center}
.archive-header h1{margin-bottom:8px}
.tax-filter{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:24px 0 32px}
.tax-filter a{padding:8px 18px;border-radius:50px;background:var(--white);border:1px solid var(--border);font-size:.88rem;color:var(--text-dark)}
.tax-filter a:hover,.tax-filter a.active{background:var(--green-main);color:var(--white);border-color:var(--green-main)}

/* ===== SIDEBAR ===== */
.sidebar{background:var(--white);padding:24px;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.widget{margin-bottom:30px}
.widget:last-child{margin-bottom:0}
.widget-title{font-size:1.1rem;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--gold)}
.bestseller-list{display:flex;flex-direction:column;gap:14px}
.bestseller-item{display:flex;gap:12px;align-items:center}
.bestseller-item img{width:64px;height:64px;object-fit:cover;border-radius:8px;flex-shrink:0}
.bestseller-item .info h5{font-size:.9rem;margin-bottom:4px;font-family:var(--font-body);font-weight:600}
.bestseller-item .info h5 a{color:var(--text-dark)}
.bestseller-item .price{color:var(--red);font-size:.85rem;font-weight:700}

/* ===== AFFILIATE BUTTON SHORTCODE ===== */
.affiliate-btn-wrap{text-align:center;margin:24px 0}

/* ===== FOOTER ===== */
.site-footer{background:var(--green-deep);color:#cfd8d2;padding:60px 0 0;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;margin-bottom:40px}
.footer-col h4{color:var(--white);margin-bottom:16px;font-size:1.1rem}
.footer-col p,.footer-col a{font-size:.9rem;color:#cfd8d2}
.footer-col a:hover{color:var(--gold)}
.footer-col ul li{margin-bottom:8px}
.footer-disclaimer{background:rgba(0,0,0,.18);padding:18px 20px;border-radius:var(--radius);font-size:.82rem;margin-bottom:24px;line-height:1.6}
.footer-bottom{text-align:center;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem}

/* ===== SEARCH ===== */
.search-form{display:flex;gap:8px;margin-bottom:20px}
.search-form input[type=search]{flex:1;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:var(--cream)}
.search-form button{padding:10px 18px;background:var(--green-main);color:var(--white);border-radius:8px;font-weight:600}
.search-form button:hover{background:var(--green-deep)}

/* ===== 404 ===== */
.error-404{text-align:center;padding:80px 0}
.error-404 .big{font-size:8rem;font-family:var(--font-heading);color:var(--green-main);line-height:1;margin-bottom:10px}

/* ===== SHOPEE CTA ===== */
:root{--shopee:#ee4d2d;--shopee-dark:#d9431f;--shopee-light:#ff6633}
.btn-shopee{background:#ee4d2d;background:linear-gradient(135deg,#ee4d2d,#ff6633);color:#fff!important;border:none;box-shadow:0 4px 14px rgba(238,77,45,.35);display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:8px;font-weight:700;font-size:.95rem;text-decoration:none!important;transition:all .25s;cursor:pointer;position:relative;line-height:1.3}
.btn-shopee:hover{background:#d9431f;background:linear-gradient(135deg,#d9431f,#ee4d2d);color:#fff!important;transform:translateY(-2px);box-shadow:0 6px 20px rgba(238,77,45,.45)}
.btn-shopee svg{width:18px!important;height:18px!important;max-width:18px;max-height:18px;flex-shrink:0;vertical-align:middle;stroke:#fff}
.btn-shopee-sm{padding:10px 16px;font-size:.88rem;border-radius:8px}
.btn-shopee-lg{padding:14px 32px;font-size:1.02rem}
.btn-shopee-block{display:flex;width:100%;justify-content:center}
.btn-shopee-arrow{position:relative;overflow:hidden}
.btn-shopee-arrow .arrow{transition:transform .25s;display:inline-block}
.btn-shopee-arrow:hover .arrow{transform:translateX(4px)}
.cta-trust{font-size:.72rem;color:var(--text-body);opacity:.65;margin-top:6px;text-align:center;letter-spacing:.2px}
@keyframes cta-pulse{0%,100%{box-shadow:0 4px 14px rgba(238,77,45,.35)}50%{box-shadow:0 4px 24px rgba(238,77,45,.55)}}
.btn-shopee-pulse{animation:cta-pulse 5s ease-in-out infinite}

/* Affiliate shortcode */
.affiliate-btn-wrap{text-align:center;margin:28px 0}
.affiliate-btn-wrap .badge{display:inline-block;margin-top:6px;font-size:.72rem;color:var(--green-main);font-weight:600}

/* Product card Shopee button */
.product-card .btn-shopee{margin-top:auto;font-size:.88rem;padding:10px 18px}

/* Sticky CTA mobile for single product */
.sticky-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:200;background:var(--white);box-shadow:0 -4px 20px rgba(0,0,0,.1);padding:10px 16px;align-items:center;gap:10px}
.sticky-cta.visible{display:flex}
.sticky-cta .info{flex:1;min-width:0}
.sticky-cta .info .name{font-size:.82rem;font-weight:600;color:var(--text-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sticky-cta .info .price{font-size:.9rem;font-weight:700;color:var(--red)}
.sticky-cta .btn-shopee{padding:10px 18px;font-size:.85rem;flex-shrink:0;white-space:nowrap}

/* Header social */
.header-social-fb{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;color:#1877f2;transition:color .2s,background .2s;flex-shrink:0}
.header-social-fb:hover{color:#fff;background:#1877f2}
.header-social-fb svg{width:22px;height:22px}

/* Floating widget */
.ddvc-float{position:fixed;bottom:24px;right:24px;z-index:190;opacity:0;transform:translateY(20px);transition:all .4s;pointer-events:none;display:flex;flex-direction:column;align-items:center;gap:10px}
.ddvc-float.show{opacity:1;transform:translateY(0);pointer-events:auto}
.ddvc-float-fb{width:44px;height:44px;border-radius:50%;background:#1877f2;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(24,119,242,.4);cursor:pointer;transition:transform .2s;text-decoration:none}
.ddvc-float-fb:hover{transform:scale(1.1);color:#fff}
.ddvc-float-btn{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--shopee),var(--shopee-light));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(238,77,45,.4);cursor:pointer;transition:transform .2s;text-decoration:none}
.ddvc-float-btn:hover{transform:scale(1.1);color:#fff}
.ddvc-float-btn svg{width:26px!important;height:26px!important;max-width:26px;stroke:#fff}
.ddvc-float-tip{position:absolute;bottom:64px;right:0;background:var(--text-dark);color:#fff;padding:8px 14px;border-radius:8px;font-size:.78rem;white-space:nowrap;opacity:0;transform:translateY(6px);transition:all .2s;pointer-events:none;text-decoration:none}
.ddvc-float-btn:hover~.ddvc-float-tip,.ddvc-float-tip:hover{opacity:1;transform:translateY(0);pointer-events:auto}

/* Exit intent popup */
.ddvc-exit-overlay{display:none;position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.6);align-items:center;justify-content:center}
.ddvc-exit-overlay.show{display:flex}
.ddvc-exit-box{background:#fff;border-radius:20px;padding:40px 36px;max-width:440px;width:90%;text-align:center;position:relative;animation:qfadein .3s;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.ddvc-exit-box h3{font-family:var(--font-heading);color:var(--green-deep);font-size:1.4rem;margin:0 0 12px;line-height:1.4}
.ddvc-exit-box p{color:var(--text-body);margin:0 0 24px;font-size:.95rem;line-height:1.5}
.ddvc-exit-close{position:absolute;top:12px;right:16px;background:none;border:none;font-size:1.5rem;color:#999;cursor:pointer;line-height:1}
.ddvc-exit-close:hover{color:#333}
.ddvc-exit-cta{display:inline-flex;align-items:center;gap:8px;padding:16px 32px;background:linear-gradient(135deg,#ee4d2d,#ff6633);color:#fff;font-weight:700;border-radius:10px;text-decoration:none;font-size:1.05rem;box-shadow:0 4px 16px rgba(238,77,45,.35);transition:transform .2s,box-shadow .2s}
.ddvc-exit-cta:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(238,77,45,.45);color:#fff}
.ddvc-exit-proof{margin-top:14px;font-size:.82rem;color:#999}
@media(max-width:899px){.ddvc-exit-overlay{display:none!important}}

/* ===== SOCIAL PROOF NOTIFICATION ===== */
.ddvc-social-proof{position:fixed;bottom:24px;left:24px;z-index:180;width:320px;max-width:90vw;background:#fff;border-radius:10px;box-shadow:0 6px 24px rgba(0,0,0,.12);border-left:4px solid #ee4d2d;padding:14px 16px;display:flex;align-items:center;gap:12px;transform:translateX(-120%);opacity:0;transition:transform .4s ease,opacity .4s ease;pointer-events:none;text-decoration:none;color:inherit;cursor:pointer}
.ddvc-social-proof.show{transform:translateX(0);opacity:1;pointer-events:auto}
.ddvc-social-proof .sp-avatar{width:40px;height:40px;border-radius:50%;background:#e8f5e9;color:#2d8a56;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0}
.ddvc-social-proof .sp-body{flex:1;min-width:0}
.ddvc-social-proof .sp-name{font-size:.82rem;font-weight:600;color:#1a1a18}
.ddvc-social-proof .sp-product{font-size:.78rem;color:#3d3d3a;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ddvc-social-proof .sp-check{color:#2d8a56;font-size:.75rem;flex-shrink:0;margin-left:4px}
.ddvc-social-proof .sp-time{font-size:.7rem;color:#999;margin-top:2px}

/* ===== UTILITIES ===== */
.text-center{text-align:center}
.mt-0{margin-top:0}
.mb-0{margin-bottom:0}

/* ===== RESPONSIVE: TABLET ===== */
@media (min-width:600px){
    .product-grid{grid-template-columns:repeat(2,1fr)}
    .why-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
}

/* ===== RESPONSIVE: DESKTOP ===== */
@media (min-width:900px){
    .product-grid{grid-template-columns:repeat(3,1fr)}
    .post-grid{grid-template-columns:repeat(3,1fr)}
    .tool-grid{grid-template-columns:repeat(3,1fr)}
    .why-grid{grid-template-columns:repeat(4,1fr)}
    .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
    .product-layout{grid-template-columns:60% 40%}
    .single-layout.has-sidebar{grid-template-columns:1fr 300px}
}

/* ===== RESPONSIVE: MOBILE NAV ===== */
@media (max-width:899px){
    .menu-toggle{display:flex}
    .main-nav{position:fixed;top:var(--header-h);left:0;right:0;background:var(--white);box-shadow:var(--shadow);max-height:0;overflow:hidden;transition:max-height .3s}
    .main-nav.open{max-height:80vh}
    .main-nav ul{flex-direction:column;gap:0;padding:10px 20px}
    .main-nav li{border-bottom:1px solid var(--border)}
    .main-nav li:last-child{border-bottom:none}
    .main-nav a{display:block;padding:14px 0}
    .site-header{background:var(--white)}
    .hero{padding:60px 0 70px}
}