/* VCC 909 landing - palette lấy từ ảnh sản phẩm: giấy ấm, đỏ lon VCC, xanh logo, nâu gỗ */
:root{
  --paper:#f6f1e8;
  --cream:#efe6d6;
  --tint:#fbeef0;
  --ink:#17150f;
  --ink-2:#4d473c;
  --muted:#7a7365;
  --red:#be1118;
  --red-dk:#8b0c11;
  --red-soft:#e8565b;
  --green:#1d6b52;
  --wood:#7c6048;
  --line:rgba(23,21,15,.13);
  --dark:#171512;
  --dark-2:#221f1a;
  --cream-on-dark:#f2eade;
  --radius:18px;
  --shadow:0 18px 44px -28px rgba(23,21,15,.55);
  --max:1160px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.62;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:"Be Vietnam Pro",system-ui,sans-serif;letter-spacing:-.018em;line-height:1.14;margin:0 0 .5em}
h1{font-size:clamp(29px,5.4vw,50px);font-weight:800}
h2{font-size:clamp(24px,3.6vw,36px);font-weight:800}
h3{font-size:19px;font-weight:700;line-height:1.3}
p{margin:0 0 1em}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.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}
.skip{position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:12px;top:12px}

.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--red);margin:0 0 14px;
}
.eyebrow-light{color:var(--red-soft)}
.muted{color:var(--muted);font-size:15px}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(255,253,249,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.head-in{display:flex;align-items:center;gap:14px;min-height:66px;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto;min-width:0}
.brand img{height:38px;width:auto;border-radius:4px}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-weight:800;font-size:15px;letter-spacing:-.01em}
.brand-text small{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav{display:none;gap:20px;font-size:14px;font-weight:500}
.nav a{text-decoration:none;color:var(--ink-2);padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--red);color:var(--ink)}
.head-cta{
  text-decoration:none;background:var(--ink);color:#fff;font-size:13.5px;font-weight:600;
  padding:11px 16px;border-radius:999px;white-space:nowrap;
}
.head-cta:hover{background:var(--red)}

/* ---------- hero ---------- */
.hero{padding:32px 0 44px;background:linear-gradient(180deg,var(--paper) 0%,#f3ece0 100%)}
.hero-grid{display:grid;gap:22px}
.hero h1{margin-bottom:0}
.lead{font-size:17.5px;color:var(--ink-2);max-width:44ch}
.hero-note{font-size:14.5px;color:var(--muted);max-width:46ch}
.hero-body .lead{margin-bottom:12px}
.hero-body .link-arrow{display:inline-block;margin:0 0 16px}
.facts-note{font-size:12.5px;color:var(--muted);margin:0}
.facts-note a{color:var(--muted);text-decoration:underline}
.visit-link{margin:12px 0 0}
.closing-link{margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 22px;border-radius:999px;
  font-weight:600;font-size:15.5px;text-decoration:none;border:1.5px solid transparent;
  transition:transform .15s ease,background .15s ease,color .15s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 10px 24px -14px rgba(190,17,24,.9)}
.btn-primary:hover{background:var(--red-dk)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(23,21,15,.28)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(23,21,15,.05)}
.btn-outline{background:transparent;color:var(--red);border-color:rgba(190,17,24,.4)}
.btn-outline:hover{background:var(--red);color:#fff;border-color:var(--red)}
.hero-proof{font-size:13.5px;color:var(--muted);margin:0 0 20px}
.facts{
  list-style:none;display:grid;grid-template-columns:1fr;gap:0;margin:0;padding:16px 0 0;
  border-top:1px solid var(--line);
}
.facts li{padding:9px 0;border-bottom:1px solid var(--line)}
.facts li:last-child{border-bottom:0}
.facts strong{display:block;font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.facts span{font-size:13px;color:var(--muted);line-height:1.35;display:block}

.hero-media{position:relative;padding-bottom:26px}
.shot{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#ded6c7}
.shot-main{aspect-ratio:1024/559}
.shot-main img,.shot-small img{width:100%;height:100%;object-fit:cover}
.shot-small{
  position:absolute;right:0;bottom:0;width:52%;max-width:230px;
  border:5px solid var(--paper);aspect-ratio:1024/572;
}
.timer{
  position:absolute;left:0;top:-14px;background:var(--ink);color:#fff;
  border-radius:14px;padding:10px 14px;display:flex;flex-direction:column;line-height:1.1;
  box-shadow:var(--shadow);
}
.timer b{font-size:18px;letter-spacing:-.02em}
.timer span{font-size:11px;color:rgba(255,255,255,.7)}

/* ---------- bands ---------- */
.band{padding:60px 0}
.band-dark{background:var(--dark);color:var(--cream-on-dark)}
.band-dark h2,.band-dark h3{color:#fff}
.band-cream{background:var(--cream)}
.band-tint{background:var(--tint)}
.band-title{max-width:22ch}
.band-lead{color:inherit;opacity:.82;max-width:48ch;font-size:16.5px}
.band-dark .band-lead{opacity:.75}

/* ---------- pain ---------- */
.pain{position:relative;overflow:hidden}
.pain::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 320px at 88% -10%,rgba(190,17,24,.28),transparent 70%),
    repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 22px);
}
.pain .wrap{position:relative}
.pain-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0 0}
.pain-card{
  border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:18px 16px;
  background:rgba(255,255,255,.035);
}
.pain-card h3{font-size:16px;margin:12px 0 6px}
.pain-card p{font-size:14px;line-height:1.55;color:rgba(242,234,222,.74);margin:0}
.painicon{width:40px;height:40px;color:var(--red-soft)}
.hook{
  font-family:"Lora",Georgia,serif;font-style:italic;font-weight:500;
  font-size:clamp(21px,3.4vw,33px);line-height:1.35;color:#fff;
  margin:34px 0 0;padding-left:18px;border-left:4px solid var(--red);
  max-width:34ch;
}

/* ---------- cause ---------- */
.cause-grid{display:grid;gap:26px}
.cause-list{display:grid;gap:16px;margin-top:22px}
.cause-item{border-left:2px solid rgba(190,17,24,.55);padding-left:15px}
.cause-item h3{font-size:16.5px;margin:0 0 5px}
.cause-item p{margin:0;font-size:15px;color:var(--ink-2)}
.cause-figure{margin:0}
.cause-figure img{aspect-ratio:4/3;width:100%;height:auto;object-fit:cover;border-radius:var(--radius);background:#ded6c7}
.cause-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px}

/* ---------- solution ---------- */
.solution-grid{display:grid;gap:26px;align-items:center}
.solution-figure{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.solution-figure img{aspect-ratio:1024/572;width:100%;height:100%;object-fit:cover}
.ticks{list-style:none;padding:0;margin:20px 0;display:grid;gap:11px}
.ticks li{position:relative;padding-left:28px;font-size:15.5px;color:var(--ink-2)}
.ticks li::before{
  content:"";position:absolute;left:0;top:7px;width:14px;height:8px;
  border-left:2.5px solid var(--green);border-bottom:2.5px solid var(--green);
  transform:rotate(-45deg);
}
.ticks strong{color:var(--ink)}
.link-arrow{
  display:inline-block;font-weight:600;font-size:15px;color:var(--red);text-decoration:none;
  border-bottom:1.5px solid rgba(190,17,24,.35);padding-bottom:2px;
}
.link-arrow::after{content:" →"}
.link-arrow:hover{border-bottom-color:var(--red)}
.link-arrow.light{color:#fff;border-bottom-color:rgba(255,255,255,.4)}

/* ---------- video ---------- */
.video-grid{display:grid;gap:22px;align-items:center}
.video-frame{
  position:relative;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;
  background:#000;box-shadow:0 22px 50px -26px rgba(0,0,0,.9);
  border:1px solid rgba(255,255,255,.12);
}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---------- cards / offer ---------- */
.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.card{background:#fffdf9;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.card figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:#e5dccd}
.card figure img{width:100%;height:100%;object-fit:cover}
.card h3{font-size:15.5px;margin:12px 14px 5px}
.card p{font-size:13.5px;line-height:1.5;color:var(--ink-2);margin:0 14px 15px}
.price-box{
  margin-top:22px;display:flex;flex-direction:column;gap:14px;
  background:#f2e9db;border-radius:16px;padding:22px;border-left:4px solid var(--red);
}
.price-box h3{margin:0 0 6px;font-size:20px}
.price-box p{margin:0;font-size:14.5px;color:var(--ink-2)}
.price-box .btn{align-self:flex-start}

/* ---------- why ---------- */
.why-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:24px}
.why-item{background:rgba(255,255,255,.6);border:1px solid rgba(23,21,15,.1);border-radius:14px;padding:18px}
.why-mark{
  display:block;font-size:11.5px;font-weight:700;color:var(--red);
  margin-bottom:7px;letter-spacing:.14em;text-transform:uppercase;
}
.why-item h3{font-size:16.5px;margin:0 0 6px}
.why-item p{margin:0;font-size:14.5px;color:var(--ink-2)}

/* ---------- spec ---------- */
.detail-grid{display:grid;gap:22px}
.spec{width:100%;border-collapse:collapse;font-size:14.5px;background:#fffdf9;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.spec th,.spec td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.spec th{
  width:40%;font-weight:600;color:var(--muted);font-size:13px;
  letter-spacing:.02em;background:rgba(239,230,214,.5);
}
.spec td{color:var(--ink)}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}

/* ---------- how ---------- */
.steps{list-style:none;counter-reset:step;display:grid;gap:16px;margin:24px 0 0;padding:0}
.steps li{counter-increment:step;position:relative;padding:18px;background:#fffdf9;border:1px solid var(--line);border-radius:14px}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  display:block;font-family:"Lora",Georgia,serif;font-style:italic;
  font-size:15px;color:var(--red);margin-bottom:6px;
}
.steps h3{font-size:16.5px;margin:0 0 6px}
.steps p{margin:0;font-size:14.5px;color:var(--ink-2)}
.caution{font-size:13.5px;color:var(--ink-2);margin-top:18px;padding:11px 14px;border-radius:10px;background:rgba(190,17,24,.07);border-left:3px solid rgba(190,17,24,.5)}

/* ---------- reviews ---------- */
.rating-line{font-size:15px;color:var(--ink-2)}
.rating-line a{color:var(--red);text-decoration:none;border-bottom:1px solid rgba(190,17,24,.35)}
.review-grid{display:grid;gap:14px;margin-top:20px}
.review{margin:0;background:#fffdf9;border:1px solid var(--line);border-radius:16px;padding:20px}
.review p{font-family:"Lora",Georgia,serif;font-style:italic;font-size:16.5px;line-height:1.6;margin:0 0 12px}
.review footer{font-size:13px;color:var(--muted);font-style:normal}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px}
.faq-wrap details{border-bottom:1px solid var(--line);padding:4px 0}
.faq-wrap summary{
  cursor:pointer;list-style:none;font-weight:600;font-size:16.5px;
  padding:14px 34px 14px 0;position:relative;
}
.faq-wrap summary::-webkit-details-marker{display:none}
.faq-wrap summary::after{
  content:"+";position:absolute;right:6px;top:12px;font-size:22px;color:var(--red);font-weight:400;
}
.faq-wrap details[open] summary::after{content:"−"}
.faq-wrap details p{font-size:15px;color:var(--ink-2);margin:0 0 16px;padding-right:20px}

/* ---------- visit ---------- */
.visit{padding-bottom:52px}
.visit-grid{display:grid;gap:24px}
.visit-list{list-style:none;padding:0;margin:18px 0 22px;display:grid;gap:10px}
.visit-list li{display:grid;gap:2px;font-size:15px;color:var(--ink-2);padding-bottom:10px;border-bottom:1px solid var(--line)}
.visit-list span{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600}
.visit-list a{font-weight:700;color:var(--ink);text-decoration:none;font-size:19px}
.visit-list a:hover{color:var(--red)}
.visit-actions{display:flex;flex-wrap:wrap;gap:10px}
.visit-map{border-radius:16px;overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;background:#e5dccd}
.visit-map iframe{width:100%;height:100%;border:0;display:block}

/* ---------- form band ---------- */
.form-band{padding-top:52px}
.form-grid{display:grid;gap:22px}
.form-box{background:#fffdf9;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.form-box p{font-size:14.5px;color:var(--ink-2);margin:0}

/* ---------- footer ---------- */
.site-foot{background:var(--dark);color:rgba(242,234,222,.78);padding:44px 0 92px;font-size:14px}
.foot-grid{display:grid;gap:22px}
.foot-name{color:#fff;font-weight:700;font-size:15.5px;margin-bottom:8px}
.foot-label{color:var(--red-soft);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:700;margin:14px 0 6px}
.site-foot a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.3)}
.foot-note{margin-top:22px;padding-top:16px;border-top:1px solid rgba(255,255,255,.14);font-size:12.5px;color:rgba(242,234,222,.55)}

/* ---------- mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:6px;
  padding:8px 10px calc(8px + env(safe-area-inset-bottom));
  background:rgba(23,21,15,.97);border-top:1px solid rgba(255,255,255,.12);
}
.mobile-bar a{
  display:flex;align-items:center;justify-content:center;text-align:center;
  min-height:44px;border-radius:11px;text-decoration:none;font-size:13.5px;font-weight:600;
  color:#fff;border:1px solid rgba(255,255,255,.22);
}
.mb-call{background:var(--red);border-color:var(--red)!important}
.mb-zalo{background:rgba(255,255,255,.08)}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- breakpoints ---------- */
@media (min-width:560px){
  .facts{grid-template-columns:1fr 1fr;gap:0 20px}
  .facts li:nth-last-child(-n+1){border-bottom:0}
  .card-grid{grid-template-columns:1fr 1fr}
  .review-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
}
@media (min-width:760px){
  .band{padding:74px 0}
  .hero{padding:44px 0 56px}
  .pain-grid{gap:14px}
  .pain-card{padding:20px}
  .pain-card h3{font-size:17px}
  .why-grid{grid-template-columns:1fr 1fr}
  .cause-figure img{aspect-ratio:16/10}
  .form-box{padding:26px}
  .foot-grid{grid-template-columns:1.2fr 1fr}
}
@media (min-width:900px){
  .nav{display:flex}
  .hero-grid{
    grid-template-columns:1.03fr .97fr;column-gap:52px;row-gap:0;align-items:start;
    grid-template-areas:"head media" "body media" "facts media" "source media";
  }
  .hero-head{grid-area:head}
  .hero-media{grid-area:media;align-self:start;margin:6px 0 26px}
  .hero-body{grid-area:body;margin-top:16px}
  .facts{grid-area:facts;margin-top:18px}
  .facts-note{grid-area:source;margin-top:10px;max-width:44ch}
  .facts{grid-template-columns:repeat(3,1fr);gap:0 18px;padding-top:18px}
  .facts li{border-bottom:0;border-right:1px solid var(--line);padding:4px 12px 4px 0}
  .facts li:last-child{border-right:0}
  .facts strong{font-size:19px}
  .pain-grid{grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
  .cause-grid{grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
  .solution-grid{grid-template-columns:.95fr 1.05fr;gap:50px}
  .video-grid{grid-template-columns:.85fr 1.15fr;gap:40px}
  .card-grid{grid-template-columns:repeat(4,1fr);gap:14px}
  .why-grid{grid-template-columns:repeat(4,1fr);gap:14px}
  .detail-grid{grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}
  .steps{grid-template-columns:repeat(3,1fr);gap:16px}
  .visit-grid{grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
  .visit-map{aspect-ratio:1/1}
  .form-grid{grid-template-columns:1fr .95fr;gap:44px;align-items:center}
  .price-box{flex-direction:row;align-items:center;justify-content:space-between;gap:24px;padding:26px 28px}
  .price-box .btn{align-self:center;flex:none}
  .site-foot{padding-bottom:44px}
}
@media (min-width:980px){
  .mobile-bar{display:none}
  .site-foot{padding-bottom:40px}
}
@media (min-width:1040px){
  .band{padding:88px 0}
  .hero h1{max-width:22ch}
}

.closing{padding-block:84px 92px}
.closing-in{max-width:840px;text-align:center}
.closing .hook{
  margin:0 auto 20px;padding:0;border:0;
  font-size:clamp(26px,4.4vw,42px);line-height:1.18;color:#f7f0e3;
}
.closing .band-lead{margin:0 auto 30px;max-width:52ch;color:#cfc6b8}
.closing .hero-actions{justify-content:center}