/*
Theme Name: PackVina – In ấn bao bì
Theme URI: https://example.com/
Author: PackVina
Description: Theme WordPress nhẹ, chuẩn SEO cho doanh nghiệp in ấn bao bì B2B: schema JSON-LD, breadcrumb, form báo giá nhiều bước, nút Zalo/gọi nổi, tự tạo toàn bộ trang và bài viết tiếng Việt khi kích hoạt.
Version: 1.0.0
Requires at least: 6.2
Requires PHP: 7.4
License: GPL-2.0-or-later
Text Domain: packvina
*/

:root{
  --c-primary:#0f5132;
  --c-primary-2:#14663f;
  --c-accent:#c8892b;
  --c-kraft:#f6efe4;
  --c-ink:#1c2321;
  --c-muted:#5b6662;
  --c-line:#e3e6e4;
  --c-bg:#ffffff;
  --c-soft:#f5f7f6;
  --radius:10px;
  --shadow:0 6px 24px rgba(16,40,30,.08);
  --w:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.65;color:var(--c-ink);background:var(--c-bg)}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--c-primary-2);text-underline-offset:2px}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{line-height:1.25;margin:1.6em 0 .6em;color:#10231b}
h1{font-size:clamp(1.75rem,3.6vw,2.6rem);margin-top:.4em}
h2{font-size:clamp(1.4rem,2.6vw,1.85rem)}
h3{font-size:1.2rem}
p,ul,ol,table{margin:0 0 1.1em}
.wrap{max-width:var(--w);margin:0 auto;padding:0 16px}
[hidden]{display:none!important}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}
.skip-link:focus{position:fixed;top:8px;left:8px;width:auto;height:auto;clip:auto;background:#fff;padding:8px 12px;z-index:999}

/* Topbar + header */
.topbar{background:var(--c-primary);color:#e8f3ee;font-size:14px}
.topbar .wrap{display:flex;gap:18px;justify-content:space-between;align-items:center;min-height:36px;flex-wrap:wrap}
.topbar a{color:#fff;text-decoration:none;font-weight:600}
.topbar .usp{opacity:.9}
.site-header{background:#fff;border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--c-ink);font-weight:800;font-size:1.25rem;letter-spacing:-.01em}
.brand .logo-mark{width:36px;height:36px}
.brand small{display:block;font-weight:500;font-size:12px;color:var(--c-muted);letter-spacing:0}
.main-nav{margin-left:auto}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
.main-nav li{position:relative}
.main-nav a{display:block;padding:10px 12px;text-decoration:none;color:var(--c-ink);font-weight:600;font-size:15px;border-radius:8px}
.main-nav a:hover,.main-nav .current-menu-item>a,.main-nav .current-menu-ancestor>a{color:var(--c-primary);background:var(--c-soft)}
.main-nav .sub-menu{display:none;position:absolute;top:100%;left:0;min-width:240px;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px;flex-direction:column;align-items:stretch}
.main-nav li:hover>.sub-menu,.main-nav li:focus-within>.sub-menu{display:flex}
.main-nav .sub-menu a{font-weight:500}
.header-cta{white-space:nowrap}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--c-line);border-radius:8px;padding:8px 12px;font:inherit;font-weight:600;cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:16px;line-height:1.2;font-family:inherit;transition:.15s}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:#b07422;color:#fff}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:#fff}
.btn-outline:hover{background:var(--c-primary);color:#fff}
.btn-green{background:var(--c-primary);color:#fff}
.btn-green:hover{background:var(--c-primary-2);color:#fff}

/* Hero */
.hero{background:linear-gradient(135deg,var(--c-kraft),#fff 70%);padding:48px 0 40px;border-bottom:1px solid var(--c-line)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.hero h1{margin-top:0}
.hero .lead{font-size:1.15rem;color:#33413b}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 12px}
.hero ul.ticks{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:6px 18px;font-size:15px}
.ticks li{padding-left:26px;position:relative}
.ticks li::before{content:"";position:absolute;left:0;top:.35em;width:16px;height:16px;border-radius:50%;background:var(--c-primary) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' stroke='white' stroke-width='2' fill='none'/%3E%3C/svg%3E") center/12px no-repeat}
.hero-art{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:20px}

/* Page header */
.page-hero{background:var(--c-kraft);padding:26px 0 30px;border-bottom:1px solid var(--c-line)}
.page-hero h1{margin:.2em 0 .3em}
.page-hero .excerpt{max-width:820px;color:#3b4842;font-size:1.08rem;margin:0}
.page-hero .actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.breadcrumbs{font-size:14px;color:var(--c-muted)}
.breadcrumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:4px}
.breadcrumbs li+li::before{content:"›";margin-right:4px;color:#9aa5a0}
.breadcrumbs a{color:var(--c-muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--c-primary)}

/* Layout */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;padding:36px 16px 56px}
.layout.full{grid-template-columns:minmax(0,1fr)}
.entry{min-width:0}
.entry>*:first-child{margin-top:0}
.entry img{border-radius:var(--radius)}
.entry figure{margin:1.4em 0}
.entry figcaption{font-size:14px;color:var(--c-muted);text-align:center;margin-top:6px}
.entry ul li,.entry ol li{margin-bottom:.35em}
.entry blockquote{margin:1.4em 0;padding:14px 20px;border-left:4px solid var(--c-accent);background:var(--c-kraft);border-radius:0 var(--radius) var(--radius) 0}
.entry .note,.note{background:#fff8ec;border:1px solid #f0d9b5;border-radius:var(--radius);padding:14px 18px;font-size:15.5px}
.entry .lead{font-size:1.12rem;color:#2c3a34}
.toc{background:var(--c-soft);border:1px solid var(--c-line);border-radius:var(--radius);padding:16px 20px;margin:0 0 1.6em}
.toc strong{display:block;margin-bottom:6px}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px;font-size:15.5px}
.toc a{text-decoration:none}

/* Tables */
.table-wrap{overflow-x:auto;margin:0 0 1.3em;border:1px solid var(--c-line);border-radius:var(--radius)}
.entry table{width:100%;border-collapse:collapse;font-size:15.5px;margin:0}
.entry th,.entry td{padding:10px 12px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.entry thead th{background:var(--c-primary);color:#fff;font-weight:700}
.entry tbody tr:nth-child(even){background:#fafbfa}
.entry tbody tr:last-child td{border-bottom:0}

/* FAQ */
.entry details{border:1px solid var(--c-line);border-radius:var(--radius);padding:0 18px;margin:0 0 10px;background:#fff}
.entry summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none;position:relative;padding-right:28px}
.entry summary::-webkit-details-marker{display:none}
.entry summary::after{content:"+";position:absolute;right:0;top:10px;font-size:22px;color:var(--c-primary)}
.entry details[open] summary::after{content:"–"}
.entry details>*:last-child{margin-bottom:14px}

/* Cards */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{display:block;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:20px;text-decoration:none;color:inherit;transition:.15s;height:100%}
a.card:hover{border-color:var(--c-primary);box-shadow:var(--shadow);transform:translateY(-2px);color:inherit}
.card h3{margin:.5em 0 .3em;font-size:1.1rem}
.card p{margin:0;color:var(--c-muted);font-size:15px}
.card .ico{width:56px;height:56px}
.card .more{display:inline-block;margin-top:10px;font-weight:700;color:var(--c-primary);font-size:15px}
.section{padding:56px 0}
.section.alt{background:var(--c-soft)}
.section.kraft{background:var(--c-kraft)}
.section-head{max-width:760px;margin:0 0 28px}
.section-head h2{margin-top:0}
.section-head p{color:var(--c-muted)}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:18px;position:relative}
.steps li::before{content:counter(s);display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--c-primary);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:8px}
.steps strong{display:block}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.stats div{background:#fff;border-radius:14px;padding:20px;border:1px solid var(--c-line)}
.stats b{display:block;font-size:1.6rem;color:var(--c-primary)}
.cta-band{background:var(--c-primary);color:#fff;border-radius:18px;padding:30px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:2em 0}
.cta-band h2,.cta-band h3{color:#fff;margin:0 0 .3em}
.cta-band p{margin:0;opacity:.9}
.cta-band .btns{display:flex;gap:10px;flex-wrap:wrap}
.cta-band .btn-outline{background:transparent;color:#fff;border-color:#fff}

/* Sidebar */
.sidebar{position:relative}
.sidebar .box{background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:20px;margin-bottom:18px}
.sidebar .box.sticky{position:sticky;top:90px}
.sidebar h3{margin:0 0 10px;font-size:1.05rem}
.sidebar ul{list-style:none;padding:0;margin:0}
.sidebar li{border-bottom:1px dashed var(--c-line)}
.sidebar li:last-child{border:0}
.sidebar li a{display:block;padding:8px 0;text-decoration:none;font-size:15px}
.sidebar .quote-box{background:var(--c-primary);color:#fff;border:0}
.sidebar .quote-box h3{color:#fff}
.sidebar .quote-box p{font-size:15px;opacity:.92}
.sidebar .quote-box .btn{width:100%;margin-top:8px}

/* Post list */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{border:1px solid var(--c-line);border-radius:14px;overflow:hidden;background:#fff;display:flex;flex-direction:column}
.post-card .thumb{aspect-ratio:16/9;background:var(--c-kraft);display:flex;align-items:center;justify-content:center}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .body{padding:16px 18px}
.post-card h2,.post-card h3{font-size:1.1rem;margin:0 0 6px}
.post-card h2 a,.post-card h3 a{text-decoration:none;color:var(--c-ink)}
.post-card p{font-size:15px;color:var(--c-muted);margin:0}
.meta{font-size:14px;color:var(--c-muted)}
.pagination{margin-top:30px;display:flex;gap:6px}
.pagination .page-numbers{padding:6px 12px;border:1px solid var(--c-line);border-radius:8px;text-decoration:none}
.pagination .current{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.author-box{display:flex;gap:14px;background:var(--c-soft);border-radius:14px;padding:18px;margin-top:2em;font-size:15px}

/* Quote form */
.quote-form{background:#fff;border:1px solid var(--c-line);border-radius:16px;padding:24px;box-shadow:var(--shadow)}
.quote-form .progress{display:flex;gap:6px;margin-bottom:18px}
.quote-form .progress span{flex:1;height:6px;border-radius:6px;background:var(--c-line)}
.quote-form .progress span.on{background:var(--c-accent)}
.quote-form fieldset{border:0;padding:0;margin:0 0 6px}
.quote-form legend{font-weight:800;font-size:1.1rem;margin-bottom:10px;padding:0}
.quote-form .row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.quote-form .row3{grid-template-columns:repeat(3,minmax(0,1fr))}
.quote-form label{display:block;font-size:14.5px;font-weight:600;margin:8px 0 4px}
.quote-form input[type=text],.quote-form input[type=tel],.quote-form input[type=email],.quote-form input[type=number],.quote-form select,.quote-form textarea{width:100%;padding:11px 12px;border:1px solid #cfd6d2;border-radius:8px;font:inherit;font-size:16px;background:#fff}
.quote-form input:focus,.quote-form select:focus,.quote-form textarea:focus{outline:2px solid var(--c-accent);border-color:var(--c-accent)}
.quote-form .chips{display:flex;flex-wrap:wrap;gap:8px}
.quote-form .chips label{margin:0;font-weight:500;border:1px solid #cfd6d2;border-radius:999px;padding:7px 14px;cursor:pointer;display:inline-flex;gap:6px;align-items:center}
.quote-form .chips input{accent-color:var(--c-primary)}
.quote-form .chips label:has(input:checked){border-color:var(--c-primary);background:#e9f4ee}
.quote-form .nav{display:flex;justify-content:space-between;gap:10px;margin-top:18px}
.quote-form .hint{font-size:13.5px;color:var(--c-muted)}
.quote-form .hp{position:absolute;left:-9999px}
.quote-form.js fieldset.step{display:none}
.quote-form.js fieldset.step.active{display:block}
.form-ok{background:#e9f7ef;border:1px solid #b9e2c8;border-radius:12px;padding:18px;margin-bottom:18px}
.form-err{background:#fdecec;border:1px solid #f3c0c0;border-radius:12px;padding:14px;margin-bottom:18px}

/* Footer */
.site-footer{background:#0d2a1e;color:#c9d8d0;padding:48px 0 0;font-size:15px;margin-top:0}
.site-footer a{color:#e8f3ee;text-decoration:none}
.site-footer a:hover{color:var(--c-accent)}
.site-footer h3{color:#fff;font-size:1rem;margin:0 0 12px}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:7px}
.site-footer .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding:16px 0 90px;font-size:13.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Floating contact */
.float-contact{position:fixed;right:16px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float-contact a{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.2);color:#fff;font-weight:800;font-size:13px;text-decoration:none}
.float-contact .zalo{background:#0068ff}
.float-contact .call{background:var(--c-accent)}
.mobile-bar{display:none}

@media (max-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,1fr)}
  .site-footer .cols{grid-template-columns:1fr 1fr}
  .post-list{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  .header-cta{display:none}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--c-line);max-height:75vh;overflow:auto}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;padding:8px 16px}
  .main-nav .sub-menu{display:flex;position:static;box-shadow:none;border:0;padding:0 0 0 14px}
  .hero .wrap{grid-template-columns:1fr}
  .hero-art{display:none}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .toc ol{columns:1}
  .topbar .usp{display:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .grid-4,.post-list,.steps,.site-footer .cols{grid-template-columns:1fr}
  .hero ul.ticks{grid-template-columns:1fr}
  .quote-form .row,.quote-form .row3{grid-template-columns:1fr}
  .quote-form{padding:18px}
  .float-contact{display:none}
  .mobile-bar{display:grid;grid-template-columns:1fr 1fr 1fr;position:fixed;bottom:0;left:0;right:0;z-index:60;background:#fff;border-top:1px solid var(--c-line);box-shadow:0 -4px 16px rgba(0,0,0,.08)}
  .mobile-bar a{padding:10px 4px;text-align:center;font-weight:700;font-size:14px;text-decoration:none;color:var(--c-ink)}
  .mobile-bar a.zalo{color:#0068ff}
  .mobile-bar a.quote{background:var(--c-accent);color:#fff}
}
@media print{.site-header,.topbar,.site-footer,.float-contact,.mobile-bar,.sidebar{display:none}}

/* Ảnh minh họa */
.page-hero.has-img .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:36px;align-items:center}
.hero-img{margin:0}
.hero-img img,.hero-art img{width:100%;height:auto;border-radius:16px;box-shadow:var(--shadow);background:#fff}
.hero-art{padding:0;overflow:hidden}
.card.has-img{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card.has-img h3,.card.has-img p,.card.has-img .more{margin-left:18px;margin-right:18px}
.card.has-img .more{margin-bottom:18px}
.card.has-img p{flex:1}
.card-img{display:block;aspect-ratio:3/2;overflow:hidden;background:var(--c-kraft)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
a.card:hover .card-img img{transform:scale(1.04)}
.post-card .thumb{aspect-ratio:3/2}
.entry>img.wp-post-image,.entry>p>img{width:100%;height:auto}
@media (max-width:860px){.page-hero.has-img .wrap{grid-template-columns:1fr}.hero-img{margin-top:4px}.hero-art{display:block!important}}
.post-hero{margin:0 0 1.6em}.post-hero img{width:100%;height:auto;border-radius:14px;border:1px solid var(--c-line)}