/* ===================================================================
   Nước Mắm Hải Giang 1 — Landing page (đỏ / vàng)
   =================================================================== */
:root{
    --primary:#2f7d33;
    --primary-dark:#1c5622;
    --accent:#c99a2e;
    --accent-soft:#f1e3bf;
    --cream:#f5faf0;
    --ink:#232a22;
    --muted:#636b5e;
    --line:#e2e9da;
    --white:#ffffff;
    --radius:16px;
    --radius-sm:10px;
    --shadow:0 10px 30px rgba(28,86,34,.09);
    --shadow-lg:0 20px 50px rgba(28,86,34,.16);
    --container:1160px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:'Be Vietnam Pro',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
    color:var(--ink);
    background:var(--cream);
    line-height:1.65;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.25;font-weight:700}
h1{font-size:clamp(2rem,5vw,3.2rem)}
h2{font-size:clamp(1.6rem,3.5vw,2.4rem)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.container-narrow{max-width:820px}
.section{padding:80px 0}
.eyebrow{display:inline-block;color:var(--accent);font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;margin-bottom:10px}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.section-sub{color:var(--muted);margin-top:10px}

/* ---------- Buttons ---------- */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:999px;font-weight:600;font-size:.95rem;
    border:2px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn-lg{padding:15px 32px;font-size:1.02rem}
.btn-sm{padding:8px 16px;font-size:.85rem}
.btn-block{width:100%}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,125,51,.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline{border-color:var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-zalo{background:#0068ff;color:#fff}
.btn-zalo:hover{background:#0052cc;transform:translateY(-2px)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(251,249,243,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{display:flex;flex:0 0 auto}
.brand-mark img{height:50px;width:auto;display:block}
.brand-text strong{display:block;color:var(--primary);font-size:1.08rem;line-height:1.15;font-family:'Playfair Display',serif;max-width:260px}
.brand-text small{display:block;color:var(--muted);font-size:.72rem}
.site-nav{display:flex;align-items:center;gap:6px}
.site-nav a{padding:9px 14px;border-radius:999px;font-weight:500;font-size:.95rem;color:var(--ink);transition:.2s}
.site-nav a:hover{color:var(--primary);background:rgba(47,125,51,.07)}
.site-nav a.nav-cta{background:var(--primary);color:#fff;margin-left:6px}
.site-nav a.nav-cta:hover{background:var(--primary-dark)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav-toggle span{width:26px;height:3px;background:var(--primary);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#fff4dc 0%,#fdf8ef 55%)}
.hero-bg{position:absolute;inset:0;background:
    radial-gradient(circle at 85% 15%,rgba(242,169,0,.22),transparent 42%),
    radial-gradient(circle at 10% 90%,rgba(47,125,51,.12),transparent 44%);
    pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:70px 20px 80px;position:relative}
.hero-badge{display:inline-block;background:var(--accent-soft);color:#8a6d00;font-weight:600;padding:7px 16px;border-radius:999px;font-size:.85rem;margin-bottom:20px}
.hero h1{font-family:'Playfair Display',serif;color:var(--primary-dark);margin-bottom:18px}
.hero-sub{font-size:1.1rem;color:var(--muted);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-trust{display:flex;gap:30px;flex-wrap:wrap}
.hero-trust div{display:flex;flex-direction:column}
.hero-trust strong{color:var(--primary);font-size:1.25rem}
.hero-trust span{color:var(--muted);font-size:.85rem}
.hero-visual{display:flex;justify-content:center}
.hero-card{background:#fff;border-radius:28px;padding:22px;box-shadow:var(--shadow-lg);transform:rotate(-2deg);transition:.4s;max-width:420px}
.hero-card:hover{transform:rotate(0)}
.hero-card img{border-radius:18px;width:100%}

/* ---------- Banner (hero image) ---------- */
.hero-banner{background:linear-gradient(160deg,#f4f8ef 0%,#fbf9f3 100%)}
.hero-banner-link{display:block;max-width:1600px;margin:0 auto}
.hero-banner img{width:100%;height:auto;display:block}

/* ---------- Trust bar ---------- */
.trust-bar{background:var(--primary);color:#fff}
.trust-inner{display:flex;flex-wrap:wrap;justify-content:center;gap:16px 48px;padding:22px 20px}
.trust-inner div{display:flex;flex-direction:column;align-items:center;text-align:center}
.trust-inner strong{font-size:1.15rem;color:#fff;line-height:1.1}
.trust-inner span{font-size:.82rem;color:var(--accent-soft)}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.about-visual img{border-radius:var(--radius);box-shadow:var(--shadow);width:100%}
.about-text h2{color:var(--primary-dark);margin-bottom:16px}
.about-text p{color:var(--muted);margin-bottom:22px}
.feature-list{list-style:none;display:grid;gap:12px}
.feature-list li{display:flex;align-items:flex-start;gap:12px;font-weight:500}
.feature-list .fi{flex:0 0 24px;height:24px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;margin-top:2px}

/* ---------- Products ---------- */
.products{background:linear-gradient(180deg,#fff 0%,#f7f4ea 100%)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.product-media{display:block;aspect-ratio:4/3;background:var(--accent-soft);overflow:hidden}
.product-media img{width:100%;height:100%;object-fit:cover;transition:.4s}
.product-card:hover .product-media img{transform:scale(1.06)}
.product-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.product-body h3{font-size:1.18rem;margin-bottom:8px}
.product-body h3 a:hover{color:var(--primary)}
.product-desc{color:var(--muted);font-size:.92rem;flex:1;margin-bottom:16px}
.product-foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.product-price{color:var(--primary);font-weight:700;font-size:1.05rem}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-media{aspect-ratio:16/9;overflow:hidden;background:var(--accent-soft)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:.4s}
.news-card:hover .news-media img{transform:scale(1.06)}
.news-body{padding:20px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:1.1rem;margin-bottom:10px}
.news-body h3 a:hover{color:var(--primary)}
.news-body p{color:var(--muted);font-size:.9rem;flex:1;margin-bottom:14px}
.read-more{color:var(--primary);font-weight:600;font-size:.9rem}

/* ---------- SEO ẩn (screen-reader only) ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- Brand logo ---------- */
.brand-logo{height:54px;width:auto;display:block}

/* ---------- Gallery (co so san xuat) ---------- */
.gallery{background:linear-gradient(180deg,#f7f4ea 0%,#fff 100%)}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gallery-item{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--accent-soft);margin:0}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:.4s}
.gallery-item:hover img{transform:scale(1.06)}
.gallery-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;color:#fff;font-weight:600;font-size:.92rem;background:linear-gradient(to top,rgba(15,61,21,.85),transparent)}

/* ---------- Video ---------- */
.video-section{background:var(--cream)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;margin:0 auto}
.video-item{background:#000;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:9/16}
.video-item video{width:100%;height:100%;object-fit:cover;display:block;background:#000}

/* ---------- Contact ---------- */
.contact{background:var(--primary);color:#fff;position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 90% 10%,rgba(244,180,0,.2),transparent 40%);pointer-events:none}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;position:relative}
.contact .eyebrow{color:var(--accent)}
.contact h2{color:#fff}
.contact .section-sub{color:rgba(255,255,255,.85)}
.contact-list{list-style:none;margin:24px 0;display:grid;gap:14px}
.contact-list li{display:flex;align-items:center;gap:12px;font-size:1.05rem}
.contact-list .ci{width:38px;height:38px;background:rgba(255,255,255,.15);border-radius:50%;display:flex;align-items:center;justify-content:center}
.contact-list a:hover{color:var(--accent)}
.contact-socials{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.contact-socials .soc{padding:10px 20px;border-radius:999px;font-weight:600;font-size:.9rem;background:rgba(255,255,255,.14);transition:.2s}
.contact-socials .soc:hover{background:#fff;color:var(--primary)}
.contact-form-wrap{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);color:var(--ink)}
.contact-form{padding:32px}
.contact-form h3{margin-bottom:20px;color:var(--primary-dark)}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field label{display:block;font-weight:500;font-size:.9rem;margin-bottom:6px}
.input{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font-family:inherit;font-size:.95rem;transition:.2s;background:#fbfbf9}
.input:focus{outline:none;border-color:var(--primary);background:#fff}
textarea.input{resize:vertical}
.form-err{display:block;color:#c62828;font-size:.88rem;margin-bottom:12px}
.contact-done{padding:48px 32px;text-align:center}
.done-icon{width:64px;height:64px;margin:0 auto 16px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem}
.contact-done h3{color:var(--primary-dark);margin-bottom:8px}
.contact-done p{color:var(--muted)}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.82)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding:56px 20px 40px}
.footer-brand{font-family:'Playfair Display',serif;font-size:1.35rem;color:#fff;margin-bottom:14px}
.footer-about{font-size:.92rem;max-width:360px}
.footer-col h4{color:#fff;margin-bottom:16px;font-size:1rem}
.footer-col p{margin-bottom:10px;font-size:.92rem}
.footer-col > a{display:block;margin-bottom:9px;font-size:.92rem;transition:.2s}
.footer-col > a:hover{color:var(--accent)}
.footer-col .ic{margin-right:6px}
.footer-social{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.footer-social a{padding:7px 14px;background:rgba(255,255,255,.1);border-radius:999px;font-size:.85rem;transition:.2s}
.footer-social a:hover{background:var(--accent);color:var(--primary-dark)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:.85rem;text-align:center}

/* ---------- Floating contact ---------- */
.floating-contact{position:fixed;right:18px;bottom:18px;z-index:200;display:flex;flex-direction:column;gap:12px}
.fc-btn{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.22);transition:.25s}
.fc-btn svg{display:block}
.fc-btn:hover{transform:scale(1.1)}
.fc-zalo{background:#0068ff;animation:pulseBlue 2.2s infinite}
.fc-phone{background:var(--primary);animation:pulse 2.2s infinite}
.fc-fb{background:#1877f2}
.fc-tt{background:#111}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(47,125,51,.4)}70%{box-shadow:0 0 0 14px rgba(47,125,51,0)}100%{box-shadow:0 0 0 0 rgba(47,125,51,0)}}
@keyframes pulseBlue{0%{box-shadow:0 0 0 0 rgba(0,104,255,.4)}70%{box-shadow:0 0 0 14px rgba(0,104,255,0)}100%{box-shadow:0 0 0 0 rgba(0,104,255,0)}}

/* ---------- Detail / Article ---------- */
.breadcrumb{font-size:.88rem;color:var(--muted);margin-bottom:24px}
.breadcrumb a:hover{color:var(--primary)}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-bottom:44px}
.detail-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);background:var(--accent-soft)}
.detail-info h1{color:var(--primary-dark);margin-bottom:14px;font-size:clamp(1.7rem,4vw,2.4rem)}
.detail-price{color:var(--primary);font-weight:700;font-size:1.5rem;margin-bottom:16px}
.detail-short{color:var(--muted);margin-bottom:26px;font-size:1.05rem}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap}
.detail-content{max-width:820px}
.detail-content h2{color:var(--primary-dark);margin-bottom:16px}
.detail-content p{margin-bottom:14px;color:#3a3f36}
.detail-content ul{margin:0 0 16px 20px}
.detail-content li{margin-bottom:8px}
.article h1{color:var(--primary-dark);margin-bottom:12px}
.article-meta{color:var(--muted);font-size:.9rem;margin-bottom:22px}
.article-hero{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:26px;background:var(--accent-soft)}
.article-content{font-size:1.05rem}
.article-content p{margin-bottom:16px;color:#3a3f36}
.article-content h3{color:var(--primary-dark);margin:22px 0 10px}
.article-content ul,.article-content ol{margin:0 0 16px 22px}
.article-content li{margin-bottom:8px}
.article-content em{color:var(--muted)}
.article-cta{margin-top:40px;padding:28px;background:var(--accent-soft);border-radius:var(--radius);text-align:center}
.article-cta p{font-weight:600;margin-bottom:14px}
.notfound{text-align:center;padding:60px 0}
.notfound h1{margin-bottom:20px}

/* ---------- Responsive ---------- */
@media(max-width:900px){
    .hero-inner{grid-template-columns:1fr;gap:36px;text-align:center}
    .hero-actions,.hero-trust{justify-content:center}
    .hero-visual{order:-1}
    .hero-card{max-width:340px}
    .about-grid{grid-template-columns:1fr;gap:32px}
    .about-visual{max-width:420px;margin:0 auto}
    .product-grid,.news-grid,.gallery-grid{grid-template-columns:repeat(2,1fr)}
    .contact-grid{grid-template-columns:1fr;gap:32px}
    .detail-grid{grid-template-columns:1fr;gap:28px}
    .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
    .section{padding:56px 0}
    .nav-toggle{display:flex}
    .site-nav{position:fixed;top:74px;right:0;left:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;gap:4px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-140%);transition:.3s;z-index:99}
    .site-nav.open{transform:translateY(0)}
    .site-nav a{padding:12px 14px}
    .site-nav a.nav-cta{margin-left:0;text-align:center}
    .product-grid,.news-grid{grid-template-columns:1fr}
    .gallery-grid{grid-template-columns:repeat(2,1fr);gap:12px}
    .video-grid{grid-template-columns:repeat(2,1fr);gap:14px}
    .brand-logo{height:44px}
    .field-row{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .hero-trust{gap:20px}
    .trust-inner{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:18px 16px}
    .trust-inner div{flex-direction:column}
}