/* CASFarm — stylesheet dùng chung cho toàn bộ site */
@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');

:root{
  --green:#3C8C03;
  --green-deep:#2A6402;
  --green-tint:#EAF3E0;
  --blue:#0054A6;
  --blue-tint:#E7F0FA;
  --orange:#F7941E;
  --orange-tint:#FDF0DD;
  --ink:#1E2A18;
  --ink-muted:#5C6B54;
  --paper:#F7F5EE;
  --surface:#FFFFFF;
  --surface-2:#F0EEE4;
  --border:#DEE3D2;
  --shadow: 0 1px 2px rgba(30,42,24,.06), 0 10px 28px -14px rgba(30,42,24,.16);
  --radius: 10px;
  --display: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
  --body: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; background:var(--paper); color:var(--ink); font-family:var(--body);
  line-height:1.6; font-size:16px;
}
h1,h2,h3,h4{font-family:var(--display); font-weight:600; line-height:1.15; margin:0 0 .5em; text-wrap:balance;}
p{margin:0 0 1em;}
a{color:inherit;}
img{max-width:100%; display:block;}
.container{max-width:1180px; margin:0 auto; padding:0 24px;}
section{padding:64px 0;}
@media (max-width:640px){ section{padding:44px 0;} }

.eyebrow{
  font-family:var(--body); font-weight:700; font-size:.72rem; letter-spacing:.09em; text-transform:uppercase;
  color:var(--green-deep); display:flex; align-items:center; gap:8px; margin-bottom:12px;
}
.eyebrow::before{content:""; width:18px; height:2px; background:var(--orange); display:inline-block;}

.btn{
  display:inline-flex; align-items:center; gap:6px; font-family:var(--body); font-weight:600; font-size:.92rem;
  padding:12px 24px; border-radius:8px; text-decoration:none; border:1.5px solid transparent; cursor:pointer;
}
.btn.primary{background:var(--green); color:#fff;}
.btn.primary:hover{background:var(--green-deep);}
.btn.ghost{border-color:var(--border); color:var(--ink); background:transparent;}
.btn.ghost:hover{border-color:var(--green);}
.btn.blue{background:var(--blue); color:#fff;}
.btn.blue:hover{background:#00417f;}
.btn.small{padding:8px 16px; font-size:.82rem;}

/* ---------- Header ---------- */
header.site{
  position:sticky; top:0; z-index:50; background:rgba(247,245,238,.92); backdrop-filter:blur(6px);
  border-bottom:1px solid var(--border);
}
.nav-row{display:flex; align-items:center; justify-content:space-between; padding:16px 24px; max-width:1180px; margin:0 auto;}
.brand{display:flex; align-items:baseline; gap:4px; text-decoration:none;}
.brand b{font-family:var(--display); font-size:1.4rem; color:var(--ink);}
.brand span{font-family:var(--display); font-size:1.4rem; font-weight:700; color:var(--green);}
nav.primary{display:flex; align-items:center; gap:28px;}
nav.primary ul{list-style:none; display:flex; gap:26px; margin:0; padding:0;}
nav.primary a{text-decoration:none; font-size:.92rem; font-weight:500; color:var(--ink-muted);}
nav.primary a:hover, nav.primary a.active{color:var(--green-deep);}
.has-dropdown{position:relative;}
.dropdown{
  display:none; position:absolute; top:130%; left:0; background:var(--surface); border:1px solid var(--border);
  border-radius:8px; box-shadow:var(--shadow); min-width:260px; padding:8px; z-index:60;
}
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown{display:block;}
.dropdown a{display:block; padding:9px 12px; border-radius:6px; font-size:.86rem;}
.dropdown a:hover{background:var(--green-tint);}
.nav-actions{display:flex; align-items:center; gap:14px;}
.ext-link{font-size:.88rem; font-weight:600; color:var(--blue); text-decoration:none;}
#navToggle{display:none; background:none; border:none; font-size:1.5rem; cursor:pointer; color:var(--ink);}

.brand img.logo{height:36px; width:auto; display:block;}

/* Chuyển đổi ngôn ngữ VI / EN */
.lang-switch{display:flex; border:1px solid var(--border); border-radius:99px; overflow:hidden; font-size:.78rem; font-weight:700;}
.lang-switch button{background:var(--surface); border:none; padding:6px 11px; cursor:pointer; color:var(--ink-muted);}
.lang-switch button.active{background:var(--green); color:#fff;}
body[data-lang="vi"] .lang-en{display:none !important;}
body[data-lang="en"] .lang-vi{display:none !important;}
@media (max-width:900px){
  nav.primary ul{display:none;}
  #navToggle{display:block;}
  body.nav-open nav.primary ul{
    display:flex; flex-direction:column; position:absolute; top:100%; left:0; right:0; background:var(--surface);
    border-bottom:1px solid var(--border); padding:14px 24px; gap:4px; box-shadow:var(--shadow);
  }
  body.nav-open .dropdown{display:block; position:static; border:none; box-shadow:none; padding-left:10px;}
}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,var(--green-tint),var(--paper) 80%); padding:72px 0 56px;}
.hero .container{max-width:760px;}
.hero h1{font-size:clamp(2rem,4.2vw,3rem);}
.hero .sub{color:var(--ink-muted); font-size:1.08rem; max-width:56ch; margin-bottom:26px;}
.hero .ctas{display:flex; gap:14px; flex-wrap:wrap;}

/* ---------- Cards / grids ---------- */
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
.grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:16px;}
@media (max-width:800px){ .grid-3{grid-template-columns:1fr 1fr;} .grid-4{grid-template-columns:1fr 1fr;} }
@media (max-width:600px){ .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;} }

.card{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow);}

.badge-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:16px;}
.badge-grid .badge{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); padding:10px; display:flex; align-items:center; justify-content:center;}
.badge-grid img{width:100%; height:auto; display:block;}
@media (max-width:900px){ .badge-grid{grid-template-columns:repeat(3,1fr);} }
@media (max-width:560px){ .badge-grid{grid-template-columns:repeat(2,1fr);} }
.tile-link{
  display:flex; justify-content:space-between; align-items:center; gap:14px; text-decoration:none; color:var(--ink);
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:24px 26px; box-shadow:var(--shadow);
  transition:border-color .15s;
}
.tile-link:hover{border-color:var(--green);}
.tile-link .tag{font-size:.7rem; text-transform:uppercase; letter-spacing:.05em; color:var(--green-deep); font-weight:700; display:block; margin-bottom:6px;}
.tile-link h3{font-size:1.15rem; margin:0;}
.tile-link .arrow{font-size:1.3rem; color:var(--green-deep); flex:none;}

.sol-photo-card{
  display:block; text-decoration:none; color:var(--ink); background:var(--surface);
  border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow);
  transition:border-color .15s;
}
.sol-photo-card:hover{border-color:var(--green);}
.sol-photo-card img{width:100%; height:200px; object-fit:cover; display:block;}
.sol-photo-card .body{display:flex; justify-content:space-between; align-items:center; gap:12px; padding:18px 20px;}
.sol-photo-card .tag{font-size:.7rem; text-transform:uppercase; letter-spacing:.05em; color:var(--green-deep); font-weight:700; display:block; margin-bottom:6px;}
.sol-photo-card h3{font-size:1.05rem; margin:0; line-height:1.3;}
.sol-photo-card .arrow{font-size:1.3rem; color:var(--green-deep); flex:none;}

.solcard{padding:22px 24px;}
.solcard .tag{font-size:.7rem; text-transform:uppercase; letter-spacing:.05em; color:var(--green-deep); font-weight:700;}
.solcard h3{font-size:1.15rem; margin:8px 0 10px;}
.solcard p{color:var(--ink-muted); font-size:.94rem;}
.solcard a{font-weight:600; font-size:.9rem; text-decoration:none; color:var(--green-deep);}

.stat{background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius); padding:20px; text-align:left;}
.stat .num{font-family:var(--display); font-size:2rem; font-weight:600; color:var(--green-deep); display:block; font-variant-numeric:tabular-nums;}
.stat .lbl{font-size:.84rem; color:var(--ink-muted); margin-top:4px;}

.news-item{padding:16px 0; border-top:1px dashed var(--border); display:flex; justify-content:space-between; gap:16px;}
.news-item:first-child{border-top:none;}
.news-item a{text-decoration:none; font-weight:600;}

.imgph{
  background:repeating-linear-gradient(135deg,var(--green-tint),var(--green-tint) 12px,var(--surface-2) 12px,var(--surface-2) 24px);
  display:flex; align-items:center; justify-content:center; color:var(--ink-muted); font-size:.78rem; text-align:center; border-radius:8px 8px 0 0;
}

.section-head{max-width:640px; margin-bottom:32px;}
.section-head h2{font-size:1.9rem;}
.section-head p{color:var(--ink-muted);}
.section-foot{margin-top:26px;}
.section-foot a{font-weight:600; text-decoration:none; color:var(--green-deep);}

/* ---------- Banner ---------- */
.banner{
  background:linear-gradient(135deg,var(--blue-tint),var(--surface)); border:1px solid var(--border); border-radius:var(--radius);
  padding:26px 28px; display:flex; justify-content:space-between; align-items:center; gap:20px; flex-wrap:wrap;
}
.banner h3{font-size:1.2rem; margin-bottom:4px;}
.banner p{margin:0; color:var(--ink-muted); max-width:42ch;}

/* ---------- Forms ---------- */
form.contact{background:var(--surface-2); border:1px solid var(--border); border-radius:var(--radius); padding:26px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-bottom:14px;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}
label{display:block; font-size:.82rem; font-weight:600; margin-bottom:6px; color:var(--ink-muted);}
input,select,textarea{
  width:100%; padding:11px 13px; border:1px solid var(--border); border-radius:7px; font-family:var(--body);
  font-size:.92rem; background:var(--surface); color:var(--ink);
}
textarea{resize:vertical; min-height:96px;}
.form-note{font-size:.8rem; color:var(--ink-muted); margin-top:10px;}

/* ---------- Store list / map ---------- */
.storewrap{display:grid; grid-template-columns:1fr 1.15fr; gap:20px;}
@media (max-width:860px){.storewrap{grid-template-columns:1fr;}}
.map-embed{border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; min-height:420px; box-shadow:var(--shadow);}
.map-embed iframe{width:100%; height:100%; min-height:420px; border:0;}
.filter-row{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px;}
.filter-btn{
  border:1px solid var(--border); background:var(--surface); border-radius:99px; padding:7px 15px; font-size:.82rem;
  font-weight:600; cursor:pointer; color:var(--ink-muted);
}
.filter-btn.active{background:var(--green); border-color:var(--green); color:#fff;}
.storewrap{align-items:start;}
.map-embed{position:sticky; top:88px;}
.store-groups{
  display:flex; flex-direction:column; gap:12px; max-height:420px; overflow-y:auto; padding-right:6px;
  scrollbar-width:thin; scrollbar-color:var(--green) var(--surface-2);
}
.store-groups::-webkit-scrollbar{width:8px;}
.store-groups::-webkit-scrollbar-track{background:var(--surface-2); border-radius:8px;}
.store-groups::-webkit-scrollbar-thumb{background:var(--green); border-radius:8px;}
.store-groups::-webkit-scrollbar-thumb:hover{background:var(--green-deep);}
.store-cat{border:1px solid var(--border); border-radius:8px; overflow:hidden; flex-shrink:0;}
.store-cat > .h{background:var(--surface-2); padding:8px 14px; font-size:.72rem; text-transform:uppercase; letter-spacing:.04em; color:var(--green-deep); font-weight:700; display:flex; justify-content:space-between;}
.store-item{padding:10px 14px; border-top:1px dashed var(--border); font-size:.87rem; background:var(--surface);}
.store-item:first-child{border-top:none;}
.store-item b{display:block; font-size:.9rem;}
.store-item span{color:var(--ink-muted); font-size:.8rem;}
.store-item.featured{background:var(--green-tint);}
.store-item.featured b{color:var(--green-deep);}

/* ---------- Footer ---------- */
footer.site{background:var(--ink); color:#E7EBE1; margin-top:40px;}
footer.site .container{padding:52px 24px 32px; display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px;}
@media (max-width:800px){ footer.site .container{grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ footer.site .container{grid-template-columns:1fr; } }
footer.site h4{font-size:.78rem; text-transform:uppercase; letter-spacing:.05em; color:#9BB08A; margin-bottom:14px;}
footer.site ul{list-style:none; margin:0; padding:0;}
footer.site li{margin-bottom:8px;}
footer.site a{text-decoration:none; color:#D8DED0; font-size:.88rem;}
footer.site a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12); padding:18px 24px; font-size:.78rem; color:#93A386; display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; max-width:1180px; margin:0 auto;}

.callout{background:var(--orange-tint); border:1px solid var(--border); border-left:3px solid var(--orange); border-radius:6px; padding:14px 18px; font-size:.9rem;}

/* ---------- Solution page: photo hero (à la insolight) ---------- */
.hero-photo{position:relative; min-height:420px; display:flex; align-items:flex-end; overflow:hidden;}
.hero-photo .imgph{position:absolute; inset:0; border-radius:0; font-size:.82rem; padding:20px;}
.hero-photo > img{position:absolute; inset:0; width:100%; height:100%; object-fit:cover; border-radius:0;}
.hero-photo::after{content:""; position:absolute; inset:0; background:linear-gradient(190deg, rgba(20,30,15,.1) 30%, rgba(14,20,10,.82)); pointer-events:none;}
.hero-photo-content{position:relative; z-index:2; color:#fff; padding:52px 24px 28px; max-width:820px;}
.hero-photo-content .eyebrow{color:#DCEACB;}
.hero-photo-content .eyebrow::before{background:var(--orange);}
.hero-photo-content h1{color:#fff; font-size:clamp(1.8rem,3.6vw,2.6rem);}
.hero-caption{font-size:.82rem; color:var(--ink-muted); font-style:italic; padding:10px 24px 0; max-width:1180px; margin:0 auto;}

/* ---------- Plain photo band (no text overlay) ---------- */
.photo-band{width:100%; max-height:480px; overflow:hidden;}
.photo-band img{width:100%; height:100%; object-fit:cover; display:block;}

/* ---------- Partner logo row ---------- */
.partner-row{display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:28px 36px;}
.partner-row img{height:34px; width:auto; max-width:130px; object-fit:contain; opacity:.85; filter:grayscale(15%);}
.partner-row img:hover{opacity:1; filter:none;}
@media (max-width:640px){ .partner-row{gap:20px 24px;} .partner-row img{height:26px; max-width:100px;} }

/* ---------- Solution intro (centered, insolight-style) ---------- */
.solution-intro{max-width:720px; margin:0 auto; text-align:center;}
.solution-intro p{font-size:1.05rem; color:var(--ink-muted);}
.solution-intro p:first-of-type{color:var(--ink); font-size:1.15rem;}

/* ---------- Benefit rows (icon left, text right — insolight-style) ---------- */
.benefit-list{display:flex; flex-direction:column; gap:30px; margin-top:24px; max-width:760px; margin-left:auto; margin-right:auto;}
.benefit-row{display:flex; gap:20px; align-items:flex-start;}
.benefit-icon{
  flex:none; width:60px; height:60px; border-radius:14px; background:var(--green-tint);
  display:flex; align-items:center; justify-content:center;
}
.benefit-icon svg{width:28px; height:28px; stroke:var(--green-deep); fill:none; stroke-width:1.8;}
.benefit-row.tone-blue .benefit-icon{background:var(--blue-tint);}
.benefit-row.tone-blue .benefit-icon svg{stroke:var(--blue);}
.benefit-text h4{font-size:1.05rem; margin:2px 0 4px;}
.benefit-text p{margin:0; color:var(--ink-muted); font-size:.92rem;}


/* ---------- FAQ ---------- */
.faq-list{max-width:760px; margin:0 auto;}
.faq-item{border-bottom:1px solid var(--border); padding:16px 0;}
.faq-item summary{cursor:pointer; font-weight:600; list-style:none; position:relative; padding-right:28px; font-size:1rem;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+"; position:absolute; right:0; top:0; color:var(--green-deep); font-size:1.2rem; line-height:1;}
.faq-item[open] summary::after{content:"\2013";}
.faq-item p{margin:10px 0 0; color:var(--ink-muted); font-size:.92rem;}