/* =========================================================
   SON DUONG SHIP SUPPLY - Navy/Teal theme (theo PDF profile v2)
   Biến giữ tên cũ để không phải sửa markup:
   --gold = teal chủ đạo, --goldd = xanh dương, --ivory = nền sáng
   ========================================================= */
:root{
  --ink:#0E2A47; --ink2:#153A61;
  --gold:#1FA9B8; --goldd:#1F5FA9; --champ:#E4EDF5;
  --ivory:#F6F9FC; --paper:#FFFFFF;
  --stone:#5A6E82; --line:#E4EDF5; --muted:#8FA3B5;
  --eco:#3BB273; --eco-d:#2E9760; --eco-bg:#EFF9F2;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter','Lato',Arial,sans-serif;background:var(--ivory);color:var(--stone);
  font-size:15.5px;line-height:1.75;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility}
h1,h2,h3,h4{font-family:'Montserrat','Lato',Arial,sans-serif;color:var(--ink);font-weight:800;letter-spacing:-.01em}
.overline,.btn,nav.mainnav,.sec-num,.stat b,.port,.badge{font-family:'Montserrat','Lato',Arial,sans-serif}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.overline{font-size:11px;letter-spacing:2.5px;color:var(--gold);text-transform:uppercase;font-weight:700}
.gold-rule{width:56px;height:3px;background:var(--gold);margin:14px 0 22px}
.section{padding:68px 0}
.section-alt{background:var(--paper)}
.section h2{text-transform:uppercase;letter-spacing:.5px}

/* ---------- header ---------- */
.topbar{background:var(--ink);color:rgba(255,255,255,.7);font-size:12.5px;padding:0;letter-spacing:.3px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;height:36px}
.topbar a{color:var(--gold);font-weight:600;transition:color .2s}
.topbar a:hover{color:#fff}
.topbar .sep{color:rgba(255,255,255,.25);margin:0 8px}
header.main{background:var(--paper);border-bottom:3px solid var(--gold);position:sticky;top:0;z-index:50;
  box-shadow:0 2px 16px rgba(14,42,71,.08)}
header.main .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{width:46px;height:46px}
.brand .nm{font-weight:900;letter-spacing:1.2px;color:var(--ink);font-size:15.5px;line-height:1.2;white-space:nowrap}
.brand .tg{font-size:9px;letter-spacing:2px;color:var(--gold);text-transform:uppercase;font-weight:700;white-space:nowrap}
nav.mainnav{display:flex;align-items:center;gap:6px;font-size:11.5px;letter-spacing:1px;text-transform:uppercase;font-weight:700}
nav.mainnav a{color:var(--ink);padding:8px 10px;border-radius:5px;border-bottom:none;transition:all .2s}
nav.mainnav a:hover{color:var(--gold);background:rgba(31,169,184,.06)}
nav.mainnav a.nav-cta{color:#fff;padding:10px 20px;border-radius:24px;margin-left:6px;font-size:11px;
  white-space:nowrap;box-shadow:0 4px 12px rgba(31,169,184,.3)}
nav.mainnav a.nav-cta:hover{color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(31,169,184,.4)}

/* ---------- hero ---------- */
.hero{background:var(--ink);color:#fff;padding:70px 0 76px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;right:0;top:0;width:45%;height:100%;
  background:linear-gradient(115deg,transparent 0%,rgba(31,95,169,.28) 40%,rgba(31,169,184,.25) 100%);pointer-events:none}
.hero .wrap{display:flex;align-items:center;gap:56px;flex-wrap:wrap;position:relative}
.hero .txt{flex:1 1 440px}
.hero h1{font-size:52px;color:#fff;letter-spacing:2px;line-height:1.12;text-transform:uppercase}
.hero h1 span{color:var(--gold)}
.hero .lead{color:#C9DCF0;max-width:470px;margin:24px 0 30px;font-size:16px}
.hero .badges{display:flex;gap:14px;flex-wrap:wrap;font-size:11px;letter-spacing:1px;color:#fff}
.hero .badges span{display:inline-block;background:var(--ink2);border:1px solid var(--gold);border-radius:6px;padding:10px 16px;font-weight:700}
.hero .badges b{color:var(--gold);margin-right:7px}
.btn{display:inline-block;font-size:12px;letter-spacing:1.8px;text-transform:uppercase;font-weight:700;padding:14px 32px;border:1px solid var(--gold);color:var(--gold);border-radius:30px;transition:.25s}
.btn:hover{background:var(--gold);color:#fff}
.btn.solid{background:var(--gold);color:#fff;border-color:var(--gold)}
.btn.solid:hover{background:#17909d}
.arch{width:400px;max-width:92vw;aspect-ratio:4/3;border-radius:14px;overflow:hidden;position:relative;box-shadow:0 20px 50px rgba(0,0,0,.35);border:3px solid rgba(31,169,184,.5)}
.arch img{width:100%;height:100%;object-fit:cover;display:block}
.deco-rings{position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;border:1px solid rgba(31,169,184,.25);box-shadow:0 0 0 40px rgba(31,169,184,.07),0 0 0 80px rgba(31,169,184,.05)}

/* ---------- hero banner (ảnh full màn hình) ---------- */
.hero-banner{background-size:cover;background-position:center right;min-height:620px;display:flex;align-items:center;padding:60px 0}
.hero-banner:before{display:none}
.hero-banner .txt{flex:1 1 520px;max-width:640px}
.hero-v3{min-height:86vh;position:relative}
.hero-v3:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;
  background:linear-gradient(100deg,rgba(8,22,36,.9) 0%,rgba(8,22,36,.62) 45%,rgba(8,22,36,.2) 75%,rgba(8,22,36,.4) 100%);pointer-events:none}
.hero-v3 .wrap{position:relative;z-index:2}
.hero-v3 h1{font-size:62px;text-shadow:0 4px 24px rgba(0,0,0,.45)}
.hero-v3 .lead{color:#EAF2FA;text-shadow:0 2px 12px rgba(0,0,0,.55);font-size:17px}
.hero-v3 .overline{text-shadow:0 2px 8px rgba(0,0,0,.5)}
.hero-v3 .txt>*{opacity:0;animation:fadeUp .9s ease forwards}
.hero-v3 .txt>*:nth-child(2){animation-delay:.12s}
.hero-v3 .txt>*:nth-child(3){animation-delay:.24s}
.hero-v3 .txt>*:nth-child(4){animation-delay:.36s}
.hero-v3 .txt>*:nth-child(5){animation-delay:.42s}
.hero-v3 .txt>*:nth-child(6){animation-delay:.5s}
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

/* ---------- stats float (đè lên hero) ---------- */
.stats-float{margin-top:-58px;position:relative;z-index:5}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:16px;
  box-shadow:0 24px 60px rgba(14,42,71,.16);border:1px solid var(--line);overflow:hidden}
.stat{text-align:center;padding:26px 10px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat b{display:block;font-size:30px;font-weight:900;color:var(--goldd)}
.stat span{font-size:11px;letter-spacing:1.8px;text-transform:uppercase;color:var(--muted);font-weight:700}
@media(max-width:760px){.stats-grid{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:none}}

/* ---------- scroll hint ---------- */
.scroll-hint{position:absolute;left:50%;bottom:76px;transform:translateX(-50%);z-index:3;
  width:38px;height:38px;border:1px solid rgba(255,255,255,.55);border-radius:50%;color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;animation:bob 2s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}

/* ---------- reveal on scroll (stagger theo lưới) ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity .75s cubic-bezier(.22,.61,.36,1),transform .75s cubic-bezier(.22,.61,.36,1)}
.rv.in{opacity:1;transform:none}
.svc-grid .rv:nth-child(2),.prod-grid .rv:nth-child(2),.news-grid .rv:nth-child(2){transition-delay:.12s}
.svc-grid .rv:nth-child(3),.prod-grid .rv:nth-child(3),.news-grid .rv:nth-child(3){transition-delay:.24s}
.prod-grid .rv:nth-child(4){transition-delay:.08s}
.prod-grid .rv:nth-child(5){transition-delay:.2s}
.prod-grid .rv:nth-child(6){transition-delay:.32s}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .hero-v3 .txt>*{animation:none;opacity:1}
  .scroll-hint{animation:none}
}

/* ---------- micro-interactions ---------- */
.btn{transition:all .28s cubic-bezier(.22,.61,.36,1)}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(31,169,184,.35)}
.port{transition:all .25s ease;cursor:default}
.port:hover{background:var(--gold);color:#fff;border-color:var(--gold);transform:translateY(-2px)}
.port:hover:before{background:#fff}
.prod-card{transition:transform .3s ease,box-shadow .3s ease}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(14,42,71,.12)}
.ss-row{transition:transform .3s ease,box-shadow .3s ease}
.ss-row:hover{transform:translateX(6px);box-shadow:0 10px 28px rgba(14,42,71,.1)}
.stat b{transition:color .3s}
nav.mainnav a{transition:color .22s,border-color .22s}
.news-card{transition:transform .3s ease,box-shadow .3s ease}
.news-card:hover{transform:translateY(-4px)}

/* ---------- back to top ---------- */
.to-top{position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;background:var(--gold);
  color:#fff;display:none;align-items:center;justify-content:center;font-size:18px;z-index:99;
  box-shadow:0 10px 24px rgba(31,169,184,.4);cursor:pointer}
.to-top.show{display:flex}

/* ---------- eco list trong nội dung động ---------- */
.eco-list-wrap ul{list-style:none;margin-top:6px}
.eco-list-wrap li{padding-left:30px;position:relative;margin-bottom:11px;color:#33503F;font-size:14.5px}
.eco-list-wrap li:before{content:"✔";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;
  background:var(--eco);color:#fff;font-size:11px;text-align:center;line-height:20px}
.eco .sec-num{font-size:22px}

/* ---------- section number chips (giống PDF) ---------- */
.sec-head{display:flex;align-items:center;gap:16px;margin-bottom:6px}
.sec-num{flex:0 0 48px;height:48px;background:var(--gold);color:#fff;font-weight:900;font-size:20px;
  display:flex;align-items:center;justify-content:center;border-radius:9px;box-shadow:0 6px 16px rgba(31,169,184,.35)}
.section-alt .sec-num{background:var(--goldd);box-shadow:0 6px 16px rgba(31,95,169,.3)}
.eco .sec-num{background:var(--eco);box-shadow:0 6px 16px rgba(59,178,115,.35)}
.eco-line{color:#7FE0A8 !important}
.eco-badge{border-color:var(--eco) !important}
.eco-badge b{color:#7FE0A8 !important}
.gold-rule.eco-rule{background:linear-gradient(90deg,var(--gold),var(--eco))}
nav.mainnav a.nav-eco{color:var(--eco-d)}
nav.mainnav a.nav-eco:hover{color:var(--eco);border-bottom-color:var(--eco)}

/* ---------- green commitment ---------- */
.eco{background:linear-gradient(180deg,var(--eco-bg) 0%,#FFFFFF 100%);border-top:3px solid var(--eco)}
.eco-grid{display:flex;gap:56px;align-items:center;flex-wrap:wrap}
.eco-pic{flex:0 1 380px;text-align:center}
.eco-pic img{max-width:360px;width:100%;filter:drop-shadow(0 18px 30px rgba(46,151,96,.25))}
.eco-photo img{max-width:100%;height:420px;object-fit:cover;border-radius:18px;filter:none;
  box-shadow:0 22px 50px rgba(14,42,71,.22);border:4px solid #fff}
.eco-grid .txt{flex:1 1 460px}
.eco-grid p{margin-bottom:16px}
.eco-list{list-style:none;margin-top:6px}
.eco-list li{padding-left:30px;position:relative;margin-bottom:11px;color:#33503F;font-size:14.5px}
.eco-list li:before{content:"✔";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;
  background:var(--eco);color:#fff;font-size:11px;text-align:center;line-height:20px}

/* ---------- about ---------- */
.about-grid{display:flex;gap:56px;align-items:flex-start;flex-wrap:wrap}
.about-grid .txt{flex:1 1 480px}
.about-grid .pic{flex:0 1 340px}
.about-grid .pic .arch{width:100%;aspect-ratio:3/4;border-color:var(--line)}
.about-grid h2{font-size:30px;margin-bottom:8px}
.about-grid p{margin-bottom:16px}
.about-content h3{font-size:17px;margin:24px 0 10px;text-transform:uppercase;letter-spacing:.5px;padding-left:12px;border-left:4px solid var(--gold)}
.about-content ul{margin:12px 0 12px 4px;list-style:none}
.about-content li{margin-bottom:8px;padding-left:20px;position:relative}
.about-content li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);position:absolute;left:0;top:10px}

/* ---------- services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:38px}
.svc-card{background:var(--paper);border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:12px;overflow:hidden;transition:.25s}
.svc-card:hover{box-shadow:0 14px 40px rgba(14,42,71,.12);transform:translateY(-4px)}
.svc-card .ph{height:200px;overflow:hidden}
.svc-card .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.svc-card:hover .ph img{transform:scale(1.05)}
.svc-card .bd{padding:24px 26px 28px}
.svc-card .num{font-size:20px;font-weight:900;color:var(--gold)}
.svc-card h3{font-size:17px;margin:4px 0 10px;text-transform:uppercase;letter-spacing:.5px}
.svc-card p{font-size:13.5px}
.svc-card ul{list-style:none;margin-top:14px}
.svc-card li{padding-left:22px;position:relative;font-size:13.5px;margin-bottom:7px;color:#3E4C59}
.svc-card li:before{content:"✓";color:var(--gold);font-weight:900;position:absolute;left:0}

/* ---------- product groups (thanh tiêu đề màu như PDF) ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;margin-top:36px}
.prod-card{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:0;overflow:hidden}
.prod-card .thumb{display:block;float:none;width:100%;height:120px;object-fit:cover;margin:0;background:#fff}
.prod-card h3{font-size:13.5px;letter-spacing:1px;text-transform:uppercase;color:#fff;background:var(--ink2);padding:12px 18px;margin:0}
.prod-card h3:after{display:none}
.prod-grid .prod-card:nth-child(3n+1) h3{background:var(--gold)}
.prod-grid .prod-card:nth-child(3n+2) h3{background:var(--goldd)}
.prod-grid .prod-card:nth-child(3n) h3{background:var(--ink2)}
.prod-card ul{list-style:none;padding:16px 20px 20px}
.prod-card li{padding-left:18px;position:relative;font-size:14px;margin-bottom:8px}
.prod-card li:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);position:absolute;left:0;top:10px}

/* ---------- ship services rows ---------- */
.ss-row{display:flex;gap:20px;padding:20px 22px;margin-bottom:14px;background:var(--ivory);border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:10px;align-items:flex-start}
.section-alt .ss-row{background:var(--ivory)}
.ss-row .ic{flex:0 0 96px;height:74px;border-radius:8px;overflow:hidden}
.ss-row .ic img{width:100%;height:100%;object-fit:cover}
.ss-row h3{font-size:16px;margin-bottom:5px;text-transform:uppercase;letter-spacing:.4px}

/* ---------- ports ---------- */
.ports{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.port{font-size:13px;font-weight:600;color:var(--ink);background:var(--paper);border:1px solid var(--goldd);padding:8px 18px;border-radius:20px;display:flex;align-items:center;gap:8px}
.port:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:36px}
.news-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s}
.news-card:hover{box-shadow:0 14px 40px rgba(14,42,71,.12)}
.news-card .ph{height:190px;overflow:hidden}
.news-card .ph img{width:100%;height:100%;object-fit:cover;transition:.4s}
.news-card:hover .ph img{transform:scale(1.05)}
.news-card .bd{padding:20px 22px 24px}
.news-card .dt{font-size:10.5px;letter-spacing:1.5px;color:var(--gold);text-transform:uppercase;font-weight:700}
.news-card h3{font-size:17px;margin:8px 0 10px}
.news-card h3 a:hover{color:var(--goldd)}
.news-card p{font-size:13.5px}

/* ---------- CTA band (navy như PDF) ---------- */
.cta-band{background:var(--ink);border-top:3px solid var(--gold);border-bottom:3px solid var(--gold)}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:32px 24px;flex-wrap:wrap}
.cta-band h3{font-size:20px;color:#fff;text-transform:uppercase;letter-spacing:.5px}
.cta-band p{font-size:13.5px;color:#9FC1E4}
.cta-band .btn{background:var(--gold);color:#fff;border-color:var(--gold)}
.cta-band .btn:hover{background:#17909d}

/* ---------- footer ---------- */
footer.main{background:var(--ink);color:#C3CDD6;padding:0;font-size:13.5px}
footer.main:before{content:"";display:block;height:3px;background:var(--gold)}
footer.main .wrap{padding-top:56px}
footer.main h4{color:var(--gold);font-size:12px;letter-spacing:2px;text-transform:uppercase;margin-bottom:16px}
.foot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:36px;padding-bottom:40px}
.foot-grid p{margin-bottom:10px}
.foot-grid .lg{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-grid .lg img{width:54px;height:54px;background:#fff;border-radius:50%;padding:4px}
.foot-grid .lg b{letter-spacing:1px;color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;text-align:center;font-size:11px;letter-spacing:1.2px;color:#8FA0B0}
.copy a{color:var(--gold)}

/* ---------- inner page ---------- */
.page-head{background:var(--ink);color:#fff;padding:52px 0;border-bottom:3px solid var(--gold)}
.page-head h1{color:#fff;font-size:32px;text-transform:uppercase;letter-spacing:1px}
.article-body{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:38px 42px;margin-top:34px}
.article-body img{border-radius:10px;margin:12px 0}
.article-body h3{margin:22px 0 10px}
.article-body ul{margin:10px 0 10px 22px}
.article-body p{margin-bottom:14px}

/* hamburger toggle */
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}

@media(max-width:960px){
  .nav-toggle{display:flex}
  nav.mainnav{position:absolute;top:100%;left:0;right:0;background:var(--paper);flex-direction:column;gap:0;
    padding:8px 24px 16px;border-bottom:3px solid var(--gold);box-shadow:0 12px 30px rgba(14,42,71,.12);
    display:none;z-index:100}
  nav.mainnav.open{display:flex}
  nav.mainnav a{padding:12px 0;border-bottom:1px solid var(--line);border-radius:0}
  nav.mainnav a:last-child{border-bottom:none}
  nav.mainnav a.nav-cta{margin:10px 0 0;text-align:center;border-bottom:none}
}
@media(max-width:760px){
  .hero h1{font-size:34px}
  .section{padding:46px 0}
  .arch{width:100%}
  .topbar .wrap{font-size:11px}
  .brand .nm{font-size:13px}
  .brand .tg{font-size:8px}
  .brand img{width:38px;height:38px}
}
@media(min-width:1800px){
  .wrap{max-width:1320px}
  .hero-v3{min-height:78vh}
  .hero-v3 h1{font-size:70px}
}