/*
Theme Name: VietKarpos Export
Theme URI: https://vietkarpos.com
Author: VietKarpos
Description: Lightweight, professional theme for VietKarpos - a Vietnam-based exporter of wood pellets and biomass, agricultural products, wood and furniture. Built for B2B trust and lead generation.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: vietkarpos
*/

/* ============================================================
   Design tokens
============================================================ */
:root{
  --green-900:#0f3320;
  --green-800:#134127;
  --green-700:#1a6b3c;
  --green-600:#218a4a;
  --green-500:#2ba55a;
  --amber:#d68a2b;
  --amber-dark:#b9741f;
  --ink:#16211b;
  --body:#33433a;
  --muted:#647468;
  --line:#e3ebe5;
  --bg:#ffffff;
  --bg-alt:#f4f8f4;
  --cream:#faf8f2;
  --shadow-sm:0 1px 2px rgba(16,51,32,.06),0 2px 8px rgba(16,51,32,.05);
  --shadow-md:0 8px 30px rgba(16,51,32,.10);
  --radius:14px;
  --radius-sm:10px;
  --wrap:1160px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --serif:'Fraunces',Georgia,'Times New Roman',serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--body);background:var(--bg);
  font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-700);text-decoration:none;transition:color .15s}
a:hover{color:var(--green-600)}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;font-weight:700;margin:0 0 .5em}
h1{font-family:var(--serif);font-weight:600;letter-spacing:-.01em}
h2{font-family:var(--serif);font-weight:600;font-size:clamp(1.7rem,3.4vw,2.5rem);letter-spacing:-.01em}
h3{font-size:1.28rem}
p{margin:0 0 1.1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.narrow{max-width:820px;margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--font);text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;font-weight:700;color:var(--green-600);margin:0 0 .8rem}
.center{text-align:center}
.lead{font-size:1.2rem;color:var(--muted)}

/* ============================================================
   Buttons
============================================================ */
.btn{
  display:inline-flex;align-items:center;gap:.5em;cursor:pointer;
  font-weight:600;font-size:.98rem;padding:.85em 1.6em;border-radius:100px;
  border:1.5px solid transparent;transition:.18s;line-height:1;
}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 6px 18px rgba(214,138,43,.28)}
.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px)}
.btn-green{background:var(--green-700);color:#fff}
.btn-green:hover{background:var(--green-800);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-outline{background:#fff;color:var(--green-700);border-color:var(--line)}
.btn-outline:hover{border-color:var(--green-600);color:var(--green-600)}

/* ============================================================
   Icons - keep inline SVGs from vk_icon() correctly sized
============================================================ */
.vk-ico{width:1.1em;height:1.1em;flex:0 0 auto;vertical-align:-.18em}
.topbar .vk-ico{width:15px;height:15px}
.site-footer .vk-ico{width:16px;height:16px;margin-right:4px}
.contact-info .ci-ic .vk-ico{width:22px;height:22px}
.card .ic .vk-ico{width:26px;height:26px}
.btn .vk-ico{width:18px;height:18px}
.site-footer li{display:flex;align-items:center}

/* ============================================================
   Header
============================================================ */
/* language switcher - now a nav item, click-to-toggle (not hover), no flag
   emoji (renders as broken boxes on many Windows browsers) */
.lang-switch{position:relative;display:flex;align-items:center}
.lang-switch .lang-current{display:flex;align-items:center;gap:6px;background:none;border:none;color:var(--ink);font-weight:500;font-size:.98rem;padding:4px 0;cursor:pointer;font-family:inherit}
.lang-switch .lang-current:hover{color:var(--green-700)}
.lang-switch .lang-current .chev{opacity:.6;transition:transform .15s}
.lang-switch.open .lang-current .chev{transform:rotate(180deg)}
.lang-switch .lang-menu{position:absolute;right:0;top:calc(100% + 12px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);min-width:180px;padding:6px;list-style:none;margin:0;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.15s;z-index:60}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-switch .lang-menu li{margin:0}
.lang-switch .lang-menu a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:8px;color:var(--ink);font-size:.92rem}
.lang-switch .lang-menu a:hover{background:var(--bg-alt);color:var(--green-700)}
.lang-switch .lang-menu li.active a{color:var(--green-700);font-weight:600}
.lang-switch .lang-menu .code-sm{font-size:.72rem;letter-spacing:.04em;color:var(--muted);font-weight:600}
.lang-switch .lang-menu li.active a .code-sm{color:var(--green-600)}

/* floating contact button - on every page; mobile taps go straight to
   WhatsApp, desktop opens a small popup */
.vk-fab{position:fixed;right:20px;bottom:20px;z-index:80}
.vk-fab-btn{width:56px;height:56px;border-radius:50%;background:var(--green-600);color:#fff;border:none;box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.18s;animation:vkFabPulse 2.6s ease-out infinite}
.vk-fab-btn:hover{background:var(--green-700);transform:translateY(-2px)}
.vk-fab.open .vk-fab-btn{animation:none}
@keyframes vkFabPulse{
  0%{box-shadow:var(--shadow-md),0 0 0 0 rgba(33,138,74,.55)}
  70%{box-shadow:var(--shadow-md),0 0 0 14px rgba(33,138,74,0)}
  100%{box-shadow:var(--shadow-md),0 0 0 0 rgba(33,138,74,0)}
}
@media(prefers-reduced-motion:reduce){.vk-fab-btn{animation:none}}
.vk-fab-btn .vk-ico{width:26px;height:26px}
.vk-fab-panel{position:absolute;right:0;bottom:calc(100% + 12px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);min-width:230px;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.15s}
.vk-fab.open .vk-fab-panel{opacity:1;visibility:visible;transform:translateY(0)}
.vk-fab-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;color:var(--ink);font-size:.92rem;font-weight:500}
.vk-fab-item:hover{background:var(--bg-alt);color:var(--green-700)}
.vk-fab-item .vk-ico{width:18px;height:18px;flex:0 0 auto;color:var(--green-600)}

.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:600;font-size:1.35rem;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand .mark{width:42px;height:42px;flex:0 0 42px}
.brand small{display:block;font-family:var(--font);font-size:.62rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--green-600);margin-top:2px}

.nav{display:flex;align-items:center;gap:28px}
.nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav a{color:var(--ink);font-weight:500;font-size:.98rem;position:relative;padding:4px 0}
.nav a:hover,.nav .current-menu-item>a{color:var(--green-700)}
.nav .current-menu-item>a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--amber);border-radius:2px}
.nav-cta{display:flex;align-items:center;gap:14px}

.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ============================================================
   Hero
============================================================ */
.hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(135deg,#0f3320,#1a6b3c 70%,#218a4a)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(1000px 500px at 80% -10%,rgba(214,138,43,.28),transparent 60%);pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;padding-top:84px;padding-bottom:84px}
.hero h1{color:#fff;font-size:clamp(2.2rem,4.6vw,3.5rem);margin-bottom:.35em}
.hero .eyebrow{color:#9ee2b4}
.hero p{color:#d7ebdd;font-size:1.16rem;max-width:34em}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.hero-badges{display:flex;gap:26px;flex-wrap:wrap;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-badges div{font-size:.9rem;color:#cfe6d6}
.hero-badges strong{display:block;font-family:var(--serif);font-size:1.7rem;color:#fff;font-weight:600}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:10px;backdrop-filter:blur(6px)}
.hero-card img{border-radius:10px;width:100%}
.hero-card .cap{font-size:.8rem;color:#bcd8c4;padding:10px 8px 6px;text-align:center}

/* ============================================================
   Sections
============================================================ */
section{padding:76px 0}
.section-alt{background:var(--bg-alt)}
.section-cream{background:var(--cream)}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.section-head p{color:var(--muted);font-size:1.1rem;margin:0}

.grid{display:grid;gap:26px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);transition:.2s}
.card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.card .ic{width:52px;height:52px;border-radius:12px;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;margin-bottom:18px;color:var(--green-700)}
.card .ic svg{width:26px;height:26px}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);font-size:.98rem;margin:0}

/* value strip */
.vstrip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.vstrip div{background:#fff;padding:28px 24px;text-align:center}
.vstrip strong{display:block;font-family:var(--serif);font-size:2rem;color:var(--green-700);font-weight:600}
.vstrip span{color:var(--muted);font-size:.92rem}

/* product feature */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feature.rev .feat-media{order:2}
.feat-media img{border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%}
.feat-body ul{list-style:none;padding:0;margin:20px 0 26px}
.feat-body li{padding:8px 0 8px 30px;position:relative;color:var(--body)}
.feat-body li::before{content:"";position:absolute;left:0;top:15px;width:16px;height:16px;background:var(--green-500);border-radius:50%;box-shadow:0 0 0 4px rgba(43,165,90,.16)}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:.96rem}
.spec-table th,.spec-table td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--line)}
.spec-table thead th{background:var(--green-800);color:#fff;font-weight:600}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:nth-child(even){background:var(--bg-alt)}
.spec-table td:first-child{font-weight:600;color:var(--ink);width:42%}

/* product cards */
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:.2s}
.prod-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.prod-card .pc-img{aspect-ratio:4/3;background:var(--bg-alt);overflow:hidden}
.prod-card .pc-img img{width:100%;height:100%;object-fit:cover}
.prod-card .pc-body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.prod-card h3{margin-bottom:.3em}
.prod-card p{color:var(--muted);font-size:.94rem;flex:1}
.tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:.32em .7em;border-radius:100px}
.tag-live{background:#e6f4ea;color:var(--green-700)}
.tag-soon{background:#fbf0dd;color:var(--amber-dark)}

/* process steps */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{position:relative;padding-top:8px}
.step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--green-700);color:#fff;font-family:var(--serif);font-weight:600;font-size:1.2rem;margin-bottom:16px}
.step h3{font-size:1.08rem}
.step p{color:var(--muted);font-size:.94rem;margin:0}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--green-800),var(--green-600));color:#fff;border-radius:20px;padding:56px;text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 300px at 90% 120%,rgba(214,138,43,.3),transparent 60%)}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{color:#fff}
.cta-band p{color:#d7ebdd;max-width:34em;margin:0 auto 26px}

/* notice */
.notice{background:#fbf6ea;border:1px solid #efdcae;border-left:4px solid var(--amber);border-radius:var(--radius-sm);padding:18px 22px;color:#7a5a1e;font-size:.95rem;margin:24px 0}
.notice strong{color:#6a4d17}

/* ============================================================
   Page (generic) + prose
============================================================ */
.page-hero{background:var(--green-900);color:#fff;padding:66px 0 60px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(800px 380px at 85% -20%,rgba(214,138,43,.22),transparent 60%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:.2em}
.page-hero p{color:#cfe6d6;font-size:1.12rem;max-width:40em;margin:0}
.breadcrumb{font-size:.85rem;color:#9ec4ab;margin-bottom:14px}
.breadcrumb a{color:#cfe6d6}

.prose{padding:64px 0}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.2em}
.prose li{margin:.4em 0}
.prose img{border-radius:var(--radius);margin:1.4em 0;box-shadow:var(--shadow-sm)}
.prose blockquote{border-left:4px solid var(--green-500);background:var(--bg-alt);margin:1.4em 0;padding:16px 24px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink)}
.milestones{list-style:none;padding:0;margin:24px 0}
.milestones li{position:relative;padding:0 0 26px 34px;border-left:2px solid var(--line);margin-left:8px}
.milestones li::before{content:"";position:absolute;left:-9px;top:2px;width:16px;height:16px;border-radius:50%;background:var(--amber);border:3px solid #fff;box-shadow:0 0 0 1px var(--line)}
.milestones b{color:var(--green-700);font-family:var(--serif)}

/* value pair (mission/vision) */
.mv{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin:30px 0}
.mv .card h3{color:var(--green-700)}

/* ============================================================
   Contact
============================================================ */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-info .ci{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-info .ci:last-child{border-bottom:0}
.contact-info .ci-ic{width:44px;height:44px;flex:0 0 44px;border-radius:11px;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;color:var(--green-700)}
.contact-info .ci b{display:block;color:var(--ink)}
.contact-info .ci span{color:var(--muted);font-size:.95rem}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:6px}
.field label .req{color:var(--amber-dark)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:.98rem;color:var(--ink);background:#fff;transition:.15s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--green-500);box-shadow:0 0 0 3px rgba(43,165,90,.14)}
.field textarea{resize:vertical;min-height:130px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hp{position:absolute;left:-9999px;opacity:0}
.form-note{font-size:.84rem;color:var(--muted);margin-top:6px}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:20px;font-size:.95rem}
.alert-ok{background:#e6f4ea;color:var(--green-800);border:1px solid #bfe3cb}
.alert-err{background:#fdecec;color:#a02525;border:1px solid #f3c9c9}

/* ============================================================
   Footer
============================================================ */
.site-footer{background:var(--green-900);color:#b9d3c1;padding:64px 0 0;font-size:.95rem}
.site-footer a{color:#cfe6d6}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{color:#fff}
.footer-brand .brand small{color:#7fb894}
.footer-brand p{color:#9ec4ab;margin-top:16px;max-width:30em}
.site-footer h4{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:9px 0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#87ac95}
.footer-disclaimer{background:rgba(0,0,0,.18);padding:16px 0;font-size:.8rem;color:#7fa08c;text-align:center}

/* ============================================================
   Responsive
============================================================ */
@media(max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:36px;padding-top:56px;padding-bottom:56px}
  .hero-card{max-width:440px}
  .feature{grid-template-columns:1fr;gap:32px}
  .feature.rev .feat-media{order:0}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .vstrip{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:760px){
  .nav{position:fixed;inset:64px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 0;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);transform:translateY(-140%);transition:transform .25s;max-height:80vh;overflow:auto}
  .nav.open{transform:translateY(0)}
  .nav ul{flex-direction:column;gap:0}
  .nav ul a{display:block;padding:14px 24px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:flex}
  .lang-switch{padding:4px 24px 14px}
  .lang-switch .lang-menu{position:static;box-shadow:none;border:none;opacity:1;visibility:visible;transform:none;max-height:0;overflow:hidden;padding:0;transition:max-height .2s}
  .lang-switch.open .lang-menu{max-height:320px;padding:6px 0 0}
  .vk-fab{right:14px;bottom:14px}
  .mv,.grid-3,.grid-2,.field-row{grid-template-columns:1fr}
}
@media(max-width:520px){
  body{font-size:16px}
  .grid-4{grid-template-columns:1fr}
  .steps,.vstrip{grid-template-columns:1fr}
  .cta-band{padding:38px 24px}
  .footer-grid{grid-template-columns:1fr}
  .hero-badges{gap:18px}
}