/* ========================================================================
   THEME — Site v2.0 · SẠP SỐ · Editorial Luxe (cream / ink / deep green)
   ======================================================================== */
:root{
  --ink:#16150f; --muted:#6b675c; --bg:#f7f5ef; --card:#fffefb; --line:#e7e3d8;
  --acc:#1e5641; --acc-soft:#eaf1ec; --cream:#f3efe4;
  --radius:20px; --radius-s:14px;
  --shadow:0 1px 2px rgba(22,21,15,.04),0 8px 24px rgba(22,21,15,.05);
  --shadow-h:0 2px 4px rgba(22,21,15,.05),0 18px 44px rgba(22,21,15,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;-webkit-text-size-adjust:100%;font-size:15.5px}
h1,h2,h3,.disp{font-family:"Fraunces",Georgia,"Times New Roman",serif;font-weight:600;letter-spacing:-.01em}
img{display:block;max-width:100%;border:0}
a{text-decoration:none;color:inherit}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* Header */
header{position:-webkit-sticky;position:sticky;top:0;z-index:50;background:rgba(247,245,239,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.nav{max-width:1120px;margin:0 auto;padding:15px 20px;display:-webkit-box;display:flex;-webkit-box-align:center;align-items:center;gap:20px}
.brand{font-family:"Fraunces",Georgia,serif;font-weight:700;font-size:19px}
.brand i{display:inline-block;width:10px;height:10px;border-radius:50%;background:var(--acc);margin-right:9px;font-style:normal;vertical-align:2px}
.nav .sp{-webkit-box-flex:1;flex:1}
.nav .menu{display:-webkit-box;display:flex;gap:24px}
.nav .menu a{font-size:13.5px;font-weight:600;color:var(--muted);letter-spacing:.01em;position:relative;padding-bottom:3px}
.nav .menu a:after{content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;background:var(--acc);transition:width .25s}
.nav .menu a:hover:after,.nav .menu a.on:after{width:100%}
.nav .menu a:hover,.nav .menu a.on{color:var(--ink)}
@media(max-width:640px){.nav .menu{gap:14px}.nav .menu a{font-size:12.5px}}
.btn{display:-webkit-inline-box;display:inline-flex;-webkit-box-align:center;align-items:center;-webkit-box-pack:center;justify-content:center;gap:8px;min-height:46px;padding:11px 24px;border-radius:999px;font-weight:600;font-size:14px;cursor:pointer;border:none;font-family:"Inter",sans-serif;line-height:1.2;transition:transform .18s,box-shadow .18s,background .18s;letter-spacing:.01em}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:scale(.98)}
.btn-ink{background:var(--ink);color:var(--cream)}
.btn-ink:hover{box-shadow:var(--shadow-h)}
.btn-lime{background:var(--acc);color:#fdfcf7}
.btn-lime:hover{background:#17452f;box-shadow:var(--shadow-h)}
.btn-line{background:transparent;border:1px solid var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--cream)}
@media(max-width:640px){.nav .btn{padding:9px 16px;min-height:42px;font-size:13px}}

/* Hero */
.hero{padding:84px 0 44px;overflow:hidden}
.hero h1{font-size:clamp(2.6rem,8.6vw,5.6rem);font-weight:600;line-height:1.04}
.hero h1 mark{background:linear-gradient(transparent 64%,#d9e6dd 64%);color:inherit;padding:0 .05em;font-style:italic}
.hero .sub{margin-top:24px;font-size:clamp(1rem,2.3vw,1.15rem);color:var(--muted);max-width:590px}
.hero .cta{margin-top:32px;display:-webkit-box;display:flex;gap:12px;flex-wrap:wrap}
.hero .proof{margin-top:26px;font-size:13.5px;color:var(--muted)}
.hero .proof b{color:var(--ink)}
.badges{margin-top:22px;display:-webkit-box;display:flex;gap:8px;flex-wrap:wrap}
.badges span{font-size:12.5px;font-weight:600;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 14px}

/* Marquee */
.mq{background:var(--ink);color:var(--cream);overflow:hidden;padding:14px 0;margin:40px 0 0}
.mq-track{display:-webkit-box;display:flex;white-space:nowrap;width:max-content;animation:mq 30s linear infinite}
.mq-track span{font-family:"Fraunces",Georgia,serif;font-weight:500;font-size:14.5px;padding:0 20px;letter-spacing:.06em;font-style:italic;opacity:.92}
@keyframes mq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Sections */
section{padding:72px 0}
.k{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.18em;color:var(--acc)}
.h2{font-size:clamp(1.7rem,4.4vw,2.5rem);font-weight:600;line-height:1.14;margin-top:12px}
.lead{color:var(--muted);margin-top:14px;max-width:640px}

/* Tiles */
.row{display:-webkit-box;display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;width:100%;box-shadow:var(--shadow);transition:box-shadow .25s,transform .25s}
.tile:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
@media(min-width:720px){.tile{width:calc((100% - 28px)/3)}.tile.w2{width:calc((100% - 14px)/2)}}
.tile .ic{font-size:24px}
.tile h3{font-size:17.5px;margin:14px 0 7px;font-weight:600}
.tile p{font-size:13.8px;color:var(--muted)}
.step .no{font-family:"Fraunces",Georgia,serif;font-weight:300;font-size:38px;color:var(--acc);font-style:italic}
.tile .no{font-family:"Fraunces",Georgia,serif;font-weight:300;font-size:38px;color:var(--acc);font-style:italic;-webkit-text-stroke:0}

/* Showcase */
.shot{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;width:100%;box-shadow:var(--shadow);transition:box-shadow .25s,transform .25s;display:-webkit-box;display:flex;-webkit-box-orient:vertical;flex-direction:column}
.shot:hover{box-shadow:var(--shadow-h);transform:translateY(-3px)}
@media(min-width:720px){.shot{width:calc((100% - 28px)/3)}}
.shot .frame{position:relative;height:0;padding-bottom:66%;overflow:hidden;background:#edeae0}
.shot .frame iframe{position:absolute;top:0;left:0;width:400%;height:400%;transform:scale(.25);transform-origin:0 0;border:0;pointer-events:none}
.shot .frame .cover{position:absolute;inset:0;z-index:2}
.shot .sbody{padding:18px 20px 20px}
.shot .stag{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:var(--acc)}
.shot h3{font-size:17px;margin:6px 0 5px;font-weight:600}
.shot p{font-size:13.5px;color:var(--muted)}
.shot .sact{display:-webkit-box;display:flex;gap:8px;margin-top:14px}
.shot .sact .btn{min-height:40px;padding:8px 18px;font-size:13px}

/* Pricing */
.price-row{display:-webkit-box;display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;-webkit-box-align:stretch;align-items:stretch}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;width:100%;position:relative;display:-webkit-box;display:flex;-webkit-box-orient:vertical;flex-direction:column;box-shadow:var(--shadow)}
@media(min-width:720px){.plan{width:calc((100% - 28px)/3)}}
.plan.best{border-color:var(--acc);box-shadow:var(--shadow-h)}
.plan .flag{position:absolute;top:-13px;left:24px;background:var(--acc);color:#fdfcf7;font-size:11px;font-weight:700;padding:5px 13px;border-radius:999px;text-transform:uppercase;letter-spacing:.08em}
.plan h3{font-size:15.5px;font-weight:600;color:var(--muted);font-family:"Inter",sans-serif;text-transform:uppercase;letter-spacing:.1em;font-size:12.5px}
.plan .pr{font-family:"Fraunces",Georgia,serif;font-size:clamp(1.7rem,4vw,2.2rem);font-weight:600;margin:10px 0 2px}
.plan .note{font-size:12.5px;color:var(--muted)}
.plan ul{list-style:none;margin:18px 0 22px;display:-webkit-box;display:flex;-webkit-box-orient:vertical;flex-direction:column;gap:10px}
.plan li{font-size:13.5px;color:var(--muted);padding-left:24px;position:relative}
.plan li:before{content:"✓";position:absolute;left:0;color:var(--acc);font-weight:700}
.plan .btn{margin-top:auto;width:100%}

/* FAQ */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-s);padding:18px 22px;margin-top:10px;transition:box-shadow .2s}
.faq details[open]{box-shadow:var(--shadow)}
.faq summary{font-weight:600;font-size:15px;cursor:pointer;list-style:none;position:relative;padding-right:28px;font-family:"Fraunces",Georgia,serif;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:-3px;font-size:21px;color:var(--acc);font-family:"Inter",sans-serif;font-weight:400}
.faq details[open] summary:after{content:"–"}
.faq details p{margin-top:11px;font-size:14px;color:var(--muted)}

/* Blog cards */
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;width:100%;box-shadow:var(--shadow);transition:box-shadow .25s,transform .25s;display:block}
.post-card:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
@media(min-width:720px){.post-card{width:calc((100% - 28px)/3)}}
.post-card time{font-size:11.5px;color:var(--acc);text-transform:uppercase;letter-spacing:.12em;font-weight:700}
.post-card h3{font-size:17.5px;margin:10px 0;line-height:1.35;font-weight:600}
.post-card p{font-size:13.5px;color:var(--muted)}
.post-card .more{display:inline-block;margin-top:14px;font-size:13px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--acc);padding-bottom:1px}

/* Article */
.art{max-width:720px;margin:0 auto;padding:64px 20px}
.art h1{font-size:clamp(1.9rem,5.4vw,2.9rem);font-weight:600;line-height:1.14}
.art .meta{margin:16px 0 34px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.art h2{font-size:1.5rem;margin:40px 0 14px}
.art h3{font-size:1.18rem;margin:28px 0 10px}
.art p,.art li{font-size:16px;color:#3a3830;margin-bottom:15px}
.art ul,.art ol{padding-left:22px;margin-bottom:15px}
.art .box{background:var(--acc-soft);border:1px solid #d4e2d8;border-left:3px solid var(--acc);border-radius:var(--radius-s);padding:18px 22px;margin:24px 0}
.art .box p{margin-bottom:0;font-size:14.5px}
.art table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.art th,.art td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.art th{background:var(--cream);font-weight:600}
.art .cta-inline{background:var(--ink);color:var(--cream);border-radius:var(--radius);padding:30px;margin:38px 0;text-align:center}
.art .cta-inline p{color:#b7b3a4;margin:9px 0 18px}
.art .cta-inline h3{color:var(--cream);margin:0;font-size:1.35rem}
.art a{border-bottom:1px solid var(--acc)}

/* CTA cuối */
.cta-big{background:var(--ink);color:var(--cream);border-radius:calc(var(--radius) + 8px);padding:clamp(38px,6vw,68px);text-align:center;margin:0 20px}
.cta-big .in{max-width:1080px;margin:0 auto}
.cta-big h2{font-size:clamp(1.8rem,5vw,3rem);font-weight:600;line-height:1.12}
.cta-big h2 mark{background:none;color:#a9cbb5;font-style:italic}
.cta-big p{color:#b7b3a4;margin:16px auto 26px;max-width:520px}

/* Footer */
footer{margin-top:76px;border-top:1px solid var(--line);background:var(--card)}
.foot{max-width:1120px;margin:0 auto;padding:40px 20px;display:-webkit-box;display:flex;flex-wrap:wrap;gap:26px}
.foot>div{-webkit-box-flex:1;flex:1;min-width:210px}
.foot h4{font-size:14px;margin-bottom:11px;font-family:"Fraunces",Georgia,serif;font-weight:600}
.foot p,.foot a{font-size:13.5px;color:var(--muted);display:block;margin-bottom:6px}
.copy{text-align:center;padding:17px;font-size:12px;color:#a09c8f;border-top:1px solid var(--line);letter-spacing:.04em}

/* Toast + reveal */
#toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);background:var(--ink);color:var(--cream);padding:11px 20px;border-radius:999px;font-size:13.5px;z-index:99;opacity:0;transition:opacity .3s;max-width:90%;text-align:center;pointer-events:none;box-shadow:var(--shadow-h)}
.rv{opacity:1;transform:none;transition:opacity .6s cubic-bezier(.2,.6,.2,1),transform .6s cubic-bezier(.2,.6,.2,1)}
.js .rv{opacity:0;transform:translateY(14px)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .js .rv{opacity:1;transform:none}
  .mq-track{animation:none}
  *{animation:none!important;transition:none!important}
}