/* Đông33 brand = VIB MAX app look: white + soft greys, black ink, lime only for the main action/emphasis, Inter, big radii.
   Inter is loaded per page via Google Fonts (<link> in each <head>). */
:root{
  --lime:#CCEF0B;--lime-hi:#C1F11D;--lime-soft:#F1FAC4;--lime-pale:#CBE34C;--green:#3C8A1A;--green-ink:#092D08;
  --ink:#0A0A0A;--body:#212529;--muted:#6B6B70;--hair:#E4E4E4;--grey:#F2F2F2;--card:#F9F9F9;--section:#F3F4F1;--paper:#fff;--mint:#F2F8F4;
  /* legacy names used by page-level styles */
  --forest:var(--ink);--deep:#0A0A0A;--sage:var(--grey);--soft:var(--card);--ivory:var(--card);--edge:var(--hair);--line:1px solid var(--hair);
  --shadow:0 18px 40px -28px rgba(10,10,10,.35);--grad:var(--card);
  --display:"Inter",-apple-system,system-ui,"Segoe UI",sans-serif;--text:var(--display);
  --r-card:24px;--r-btn:22px;--dark:linear-gradient(180deg,#343433 0%,#00010F 100%)
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:#fff;color:var(--body);font:400 16px/1.6 var(--text);-webkit-font-smoothing:antialiased;min-height:100vh;min-height:100dvh}
img{display:block;max-width:100%}
a{color:inherit;text-underline-offset:4px}
button,input,select,textarea{font:inherit;color:inherit}
button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--lime);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.18;text-wrap:balance;letter-spacing:-.02em;color:var(--ink)}
p,li{text-wrap:pretty}
[hidden]{display:none!important}
.wrap{width:min(1080px,100% - 32px);margin-inline:auto}
.label{font-weight:600;font-size:13px;line-height:1.4;letter-spacing:0;color:var(--muted)}
.brand{font-weight:800;font-size:18px;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.brand span{color:var(--ink);background:var(--lime);border-radius:8px;padding:1px 6px;margin-left:2px}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-block:18px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:14px 28px;border:0;border-radius:var(--r-btn);font-weight:600;font-size:17px;letter-spacing:-.01em;text-decoration:none;cursor:pointer;line-height:1.25;text-align:center;white-space:nowrap;background:transparent;transition:transform .15s,filter .15s,background .15s}
.btn:active{transform:scale(.98)}
@media(hover:hover){.btn:hover{filter:brightness(.97)}}
.btn:disabled{background:var(--grey)!important;color:#A8A8AD!important;cursor:not-allowed;transform:none;filter:none}
.btn-primary{background:var(--lime);color:#000}
.btn-dark{background:var(--lime);color:#000}
.btn-ink{background:var(--ink);color:#fff}
.btn-soft{background:var(--grey);color:var(--ink)}
.btn-block{width:100%}
.text-link{font-weight:600;font-size:16px;color:var(--green);text-decoration:none}
.small{font-size:14px;line-height:1.55;color:var(--muted)}

/* ---------- App header (quiz pages) ---------- */
.app-head{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);-webkit-backdrop-filter:saturate(1.6) blur(18px);backdrop-filter:saturate(1.6) blur(18px)}
.quiz-top{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:12px;padding-block:12px}
.icon-btn{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:#E7E7E3;color:var(--ink);text-decoration:none;border:0;cursor:pointer}
.icon-btn svg{width:20px;height:20px}
.quiz-top .title{font-weight:700;font-size:17px;text-align:center;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.quiz-top .count{min-width:44px;padding:7px 12px;border-radius:999px;background:var(--lime);color:#000;font-weight:600;font-size:13px;white-space:nowrap;text-align:center}
.quiz-top .count:empty{background:none;padding:0}
.progress{height:4px;background:var(--grey);overflow:hidden}
.progress span{display:block;height:100%;width:4%;background:var(--ink);border-radius:0 4px 4px 0;transition:width .35s ease}

/* ---------- Quiz shell (dinh-gia, khao-sat) ---------- */
.stage{width:min(600px,100% - 32px);margin:0 auto;padding:28px 0 72px}
.screen{display:none}
.screen.active{display:block;animation:screen-in .35s ease-out}
@keyframes screen-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.screen.active{animation:none}.btn{transition:none}}
.screen .label{display:inline-block;margin-bottom:12px;padding:5px 12px;border-radius:999px;background:var(--grey);color:var(--ink)}
.screen h1,.screen h2{font-size:clamp(26px,5.6vw,34px)}
.screen .hint{margin-top:12px;font-size:16px;color:var(--muted)}
.options{display:grid;gap:10px;margin-top:24px}
.options.two{grid-template-columns:1fr 1fr}
.option{display:block;width:100%;text-align:left;padding:18px 20px;border:2px solid transparent;border-radius:20px;background:var(--card);cursor:pointer;font-size:17px;font-weight:600;line-height:1.4;color:var(--ink);transition:background .15s,border-color .15s}
.option small{display:block;font-weight:400;font-size:14px;color:var(--muted);margin-top:3px}
@media(hover:hover){.option:hover{background:var(--grey)}}
.option.selected,.option[aria-pressed="true"]{background:var(--lime-soft);border-color:var(--ink)}
.money{margin-top:24px}
.money-field{display:flex;align-items:center;border:2px solid transparent;border-radius:20px;background:var(--card);overflow:hidden}
.money-field input{flex:1;min-width:0;border:0;background:transparent;padding:16px 20px;font-size:32px;font-weight:700;letter-spacing:-.02em;color:var(--ink);outline:none}
.money-field .unit{padding:0 20px;font-size:15px;color:var(--muted);white-space:nowrap}
.money-field:focus-within{border-color:var(--ink);background:#fff}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.chip{padding:9px 16px;border:0;border-radius:999px;background:var(--grey);font-size:15px;font-weight:500;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:#fff}
.next-row{margin-top:28px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.next-row .btn{flex:1}
.back{border:0;background:none;font-size:15px;font-weight:600;color:var(--muted);cursor:pointer;padding:6px 0}
.back[hidden]{display:none}
.teach{margin-top:20px;padding:16px 18px;background:var(--mint);font-size:15px;line-height:1.6;border-radius:18px;color:var(--body)}

/* ---------- Result ---------- */
.result-card{margin-top:24px;background:var(--card);border-radius:var(--r-card);overflow:hidden}
.result-head{background:var(--dark);color:#fff;padding:26px 24px 24px;border-radius:var(--r-card)}
.result-head .label{color:rgba(255,255,255,.7);margin:0 0 8px;background:none;padding:0}
.big{font-weight:800;font-size:clamp(44px,11vw,64px);line-height:1;letter-spacing:-.04em;color:var(--lime-hi)}
.result-head p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.75)}
.rows{padding:4px 24px}
.row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:15px 0;border-bottom:1px solid var(--hair);font-size:15px}
.row:last-child{border:0}
.row b{font-size:19px;font-weight:700;white-space:nowrap;color:var(--ink);letter-spacing:-.01em}
.row small{display:block;color:var(--muted);font-size:13px}
.row.minus b{color:var(--green)}
.premium{display:grid;grid-template-columns:repeat(3,1fr)}
.premium div{padding:18px 12px;text-align:center;border-right:1px solid var(--hair)}
.premium div:last-child{border:0}
.premium .label{font-size:12px;color:var(--muted);margin:0;background:none;padding:0}
.premium b{display:block;white-space:nowrap;font-size:21px;font-weight:700;line-height:1.2;margin-top:4px;color:var(--ink)}
.premium div:first-child{background:var(--lime-soft)}
.fine{padding:14px 24px 18px;border-top:1px solid var(--hair);font-size:13px;color:var(--muted);line-height:1.55}
.offers{display:grid;gap:12px;margin-top:28px}
.offer{display:grid;grid-template-columns:1fr auto;gap:6px 16px;align-items:center;width:100%;text-align:left;padding:22px;border:0;border-radius:var(--r-card);background:var(--card);cursor:pointer;color:var(--ink);transition:background .15s}
@media(hover:hover){.offer:hover{background:var(--grey)}}
.offer h3{font-size:20px}
.offer p{grid-column:1;font-size:15px;color:var(--muted);line-height:1.5}
.offer .arrow{grid-column:2;grid-row:1/3;width:44px;height:44px;border:0;border-radius:50%;display:grid;place-items:center;font-size:19px;background:var(--lime);color:#000}

/* ---------- Lead form ---------- */
.lead-form{display:grid;gap:16px;margin-top:24px}
.lead-form label{display:block;margin-bottom:7px;font-weight:600;font-size:14px;color:var(--ink)}
.lead-form label .opt{font-weight:400;font-size:13px;color:var(--muted)}
.lead-form input,.lead-form textarea,.optin-form input{width:100%;padding:16px 18px;border:1.5px solid var(--hair);border-radius:18px;background:#fff;font-size:17px;color:var(--ink)}
.lead-form input:focus,.lead-form textarea:focus,.optin-form input:focus{outline:none;border-color:var(--ink)}
.lead-form textarea{min-height:90px;resize:vertical}
.lead-form input[aria-invalid="true"],.optin-form input[aria-invalid="true"]{border-color:#C0392B}
.consent{font-size:13px;color:var(--muted);line-height:1.5}
.status{font-size:15px;color:#B42318}
.status:empty{display:none}
.recap{margin-top:18px;padding:14px 16px;background:var(--card);border-radius:16px;font-size:14px;line-height:1.55;color:var(--muted)}
.recap b{color:var(--ink)}

@media(max-width:560px){
  .options.two{grid-template-columns:1fr}
  .money-field input{font-size:28px;padding:14px 16px}
  .btn{font-size:16px;padding:14px 20px}
  .rows{padding:2px 18px}
  .result-head{padding:22px 20px}
  .premium b{font-size:15.5px}
  .premium div{padding:15px 6px}
  .fine{padding:13px 18px 16px}
  .offer{padding:19px 18px}
  .offer h3{font-size:18px}
  .offer .arrow{width:40px;height:40px}
}

/* ---------- Đông speaking (chat bubble) ---------- */
.say{display:flex;align-items:flex-end;gap:10px;margin-bottom:20px}
.say img{flex:none;width:44px;height:44px;border-radius:50%;object-fit:cover;object-position:50% 20%;background:var(--lime)}
.say p{position:relative;background:var(--grey);border-radius:20px 20px 20px 6px;padding:11px 16px;font-size:15px;line-height:1.55;max-width:460px;color:var(--body)}
.screen.active .say p{animation:say-in .45s ease-out}
@keyframes say-in{from{opacity:0;transform:translateY(6px) scale(.98)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.screen.active .say p{animation:none}}

/* ---------- Insight screens ---------- */
.insight-big{font-weight:800;font-size:clamp(48px,12vw,72px);line-height:1;letter-spacing:-.04em;color:var(--ink);margin-top:4px}
.insight-sub{font-size:15px;color:var(--muted);margin-top:8px}
.insight-text{margin-top:20px;font-size:17px;line-height:1.65}
.insight-q{margin-top:20px;padding-top:18px;border-top:1px solid var(--hair);font-size:21px;font-weight:700;line-height:1.35;color:var(--ink)}
.flow{display:flex;align-items:center;gap:8px;margin-top:22px;flex-wrap:wrap}
.flow span{padding:8px 14px;border-radius:999px;background:var(--grey);font-weight:600;font-size:14px;white-space:nowrap;color:var(--ink)}
.flow .mid{background:var(--lime)}
.flow b{font-size:20px;color:var(--ink)}
.years-bar{display:grid;gap:4px;margin-top:22px}
.years-bar i{display:block;height:38px;border-radius:10px;background:var(--lime);transform-origin:bottom}
.screen.active .years-bar i{animation:grow .4s ease-out backwards}
.years-legend{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:6px}
@keyframes grow{from{transform:scaleY(0);opacity:0}to{transform:none;opacity:1}}
.screen.active .rows .row{animation:screen-in .4s ease-out backwards}
.coverage{padding:16px 24px 20px;border-top:1px solid var(--hair)}
.coverage .track{height:10px;border-radius:999px;background:var(--grey);overflow:hidden;margin-top:9px}
.coverage .track span{display:block;height:100%;background:var(--ink);border-radius:999px}
.coverage p{font-size:14px;color:var(--muted)}
.coverage p b{color:var(--ink)}
.aha{margin-top:28px;background:var(--dark);color:rgba(255,255,255,.8);border-radius:var(--r-card);padding:26px 24px}
.aha .label{color:#000;background:var(--lime);margin:0 0 12px}
.aha h3{color:#fff;font-size:clamp(22px,4.6vw,28px)}
.aha p{margin-top:14px;font-size:16px;line-height:1.6}
.aha p strong{color:#fff}
.compare{margin-top:22px;display:grid;gap:16px}
.compare .lbl{display:flex;justify-content:space-between;gap:10px;font-size:14px;margin-bottom:7px}
.compare .lbl b{color:#fff;font-weight:600}
.bars{display:grid;grid-template-columns:repeat(10,1fr);gap:4px;align-items:end;height:54px}
.bars i{display:block;border-radius:6px 6px 0 0;background:#55554F}
.bars.full i{background:var(--lime-hi)}
.screen.active .bars i{animation:grow .35s ease-out backwards}
.meter{height:14px;border-radius:999px;background:#3A3A37;overflow:hidden}
.meter span{display:block;height:100%;background:#8E8E87;border-radius:999px;min-width:6px}
.meter.full span{background:var(--lime-hi)}
.ratio{font-weight:800;font-size:clamp(40px,10vw,56px);line-height:1;letter-spacing:-.03em;color:var(--lime-hi);margin-top:6px}
@media(prefers-reduced-motion:reduce){.screen.active .years-bar i,.screen.active .bars i,.screen.active .rows .row{animation:none}}
@media(max-width:560px){.aha{padding:22px 20px}.coverage{padding:14px 18px 18px}.insight-q{font-size:20px}}
@media(max-width:560px){.flow{gap:6px;flex-wrap:nowrap}.flow span{padding:7px 11px;font-size:13px}.flow b{font-size:17px}}
.footnote{margin-top:34px;padding-top:14px;border-top:1px solid var(--hair);font-size:12px;line-height:1.5;color:#8A8A8F}

/* ---------- Opt-in (Tư vấn cụ thể hơn) ---------- */
.optin-box{background:var(--card);border-radius:28px;padding:30px 28px 24px}
.optin-pre{font-size:16px;line-height:1.55}
.optin-h{margin-top:14px;font-size:clamp(25px,5.4vw,34px);font-weight:700;line-height:1.22}
.optin-h u{text-decoration:none;background:linear-gradient(transparent 62%,var(--lime) 62%)}
.optin-sub{margin-top:14px;font-size:16px;color:var(--muted)}
.optin-sub b{color:var(--ink);font-weight:700}
.optin-form{display:grid;gap:12px;margin-top:20px}
.optin-form .btn{margin-top:4px;font-size:17px}
.optin-form .consent{text-align:center}
.optin-more{display:grid;grid-template-columns:150px 1fr;gap:28px;margin-top:32px}
.optin-person{text-align:center}
.optin-person img{width:96px;height:96px;border-radius:50%;object-fit:cover;object-position:50% 20%;background:var(--lime);margin:0 auto 12px}
.optin-person b{display:block;font-size:15px;color:var(--ink)}
.optin-person span{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.optin-list h3{font-size:19px}
.optin-list ul{list-style:none;margin-top:12px}
.optin-list li{position:relative;padding:7px 0 7px 32px;font-size:16px;line-height:1.5}
.optin-list li::before{content:"";position:absolute;left:0;top:9px;width:22px;height:22px;border-radius:50%;background:var(--lime) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/14px no-repeat}
.optin-quote{margin-top:16px;padding-top:14px;border-top:1px solid var(--hair);font-size:15px;font-style:italic;color:var(--muted);line-height:1.55}
@media(max-width:560px){
  .optin-box{padding:24px 18px 20px}
  .optin-more{grid-template-columns:1fr;gap:18px}
  .optin-person{display:grid;grid-template-columns:64px 1fr;gap:12px;text-align:left;align-items:center}
  .optin-person img{width:64px;height:64px;margin:0}
  .optin-form .btn{font-size:16px;white-space:normal}
}

/* ---------- App building blocks (home, cảm ơn) ---------- */
.ck{list-style:none;display:grid;gap:12px}
.ck li{display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:center;font-size:16px;line-height:1.45;color:var(--body)}
.ck li::before{content:"";width:28px;height:28px;border-radius:50%;background:var(--lime) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/16px no-repeat}
.list{background:#fff;border-radius:var(--r-card);overflow:hidden}
.list a{display:grid;grid-template-columns:28px 1fr auto auto;align-items:center;gap:16px;padding:18px 20px;text-decoration:none;color:var(--ink);border-bottom:1px solid var(--hair);transition:background .15s}
.list a:last-child{border:0}
@media(hover:hover){.list a:hover{background:var(--card)}}
.list svg{width:26px;height:26px}
.list b{display:block;font-weight:700;font-size:17px;letter-spacing:-.01em}
.list small{display:block;color:var(--muted);font-size:14.5px;margin-top:2px}
.list .chev{width:18px;height:18px;color:#8A8A8F}
.badge{padding:4px 11px;border-radius:999px;background:var(--ink);color:var(--lime-hi);font-weight:600;font-size:13px;white-space:nowrap}

/* Floating tab bar */
.tabbar{position:fixed;left:50%;bottom:max(14px,env(safe-area-inset-bottom));transform:translateX(-50%);z-index:30;width:min(440px,100% - 28px);display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:7px;border-radius:999px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(1.6) blur(20px);backdrop-filter:saturate(1.6) blur(20px);box-shadow:0 10px 36px -8px rgba(10,10,10,.22),0 0 0 1px rgba(10,10,10,.04)}
.tabbar a{display:grid;justify-items:center;gap:2px;padding:8px 4px 7px;border-radius:999px;text-decoration:none;color:#77777C;font-size:12px;font-weight:500;line-height:1.2;white-space:nowrap}
.tabbar svg{width:24px;height:24px}
.tabbar a[aria-current="page"]{background:#E4E5DE;color:var(--ink);font-weight:700}
.has-tabbar{padding-bottom:110px}
@media(min-width:960px){.tabbar{display:none}.has-tabbar{padding-bottom:0}}