:root{
  --primary:#4c1d95;--accent:#d4a63a;--ink:#1f1147;--soft:#f4effc;
  --muted:#5f5877;--line:#e6dff5;--radius:16px;
  --gold:linear-gradient(135deg,#f6dc8b,var(--accent) 55%,#a87c1c);
  --font:"Roboto",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{font-family:var(--font);color:var(--ink);line-height:1.6;background:#fff;-webkit-font-smoothing:antialiased}
img,iframe{display:block;max-width:100%}
a{color:inherit}
ul{list-style:none;padding:0}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
.center{text-align:center}

/* buttons */
.btn{display:inline-block;padding:.9rem 1.7rem;border-radius:999px;background:var(--primary);color:#fff;font:inherit;font-weight:700;text-decoration:none;border:2px solid var(--primary);cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:var(--gold);background-origin:border-box;border:2px solid transparent;color:#3a1c00;box-shadow:0 8px 20px -8px rgba(212,166,58,.8)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-sm{padding:.5rem 1.1rem;font-size:.9rem}
.badge{display:inline-block;background:rgba(212,166,58,.18);color:var(--accent);border:1px solid var(--accent);padding:.25rem .9rem;border-radius:999px;font-size:.85rem;font-weight:700;letter-spacing:.03em}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:#fff;transition:box-shadow .2s}
.nav.stuck{box-shadow:0 2px 16px rgba(31,17,71,.12)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.logo{text-decoration:none;color:var(--primary);display:flex;flex-direction:column;line-height:1.1}
.logo b{font-size:1.4rem;font-weight:900;letter-spacing:.02em}
.logo small{font-size:.6rem;letter-spacing:.35em;color:var(--accent);font-weight:700}

/* hero */
.hero{color:#fff;padding:clamp(40px,7vw,90px) 0;background:radial-gradient(700px 400px at 80% 10%,rgba(212,166,58,.25),transparent),linear-gradient(160deg,#2a0f5c,var(--primary) 60%,#6d28d9)}
.hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:2.5rem;align-items:center}
.pre{font-size:clamp(2rem,5vw,3.6rem);font-weight:900;line-height:1.1;color:#fff;margin-top:1rem}
.big-row{display:flex;align-items:flex-end;gap:1rem;flex-wrap:wrap}
.top{font-size:clamp(1.4rem,3vw,2.1rem);font-weight:700;color:var(--accent);padding-bottom:.9rem}
.big{font-size:clamp(5rem,15vw,9.5rem);font-weight:900;line-height:1;background:var(--gold);-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{color:rgba(255,255,255,.85);font-size:1.1rem;margin:1rem 0 1.8rem;max-width:32em}
.actions{display:flex;gap:.8rem;flex-wrap:wrap}
.media{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius)}
.hero-media .media{aspect-ratio:1/1;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.ph{background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 65%,#fff),color-mix(in srgb,var(--accent) 70%,#fff));display:grid;place-items:center;color:#fff}
.play{font-size:2rem;opacity:.9}

/* sections */
.sec{padding:clamp(48px,7vw,88px) 0}
.sec-tint{background:var(--soft)}
.sec-dark{background:linear-gradient(160deg,#2a0f5c,var(--primary));color:#fff}
.sec-head{text-align:center;max-width:720px;margin:0 auto 2.4rem}
h2{font-size:clamp(1.6rem,3.6vw,2.5rem);line-height:1.2;font-weight:900;text-transform:uppercase;color:var(--primary);margin-bottom:.7rem}
.sec-dark h2{color:#fff}
h3{font-size:1.15rem;margin-bottom:.4rem}
p{color:var(--muted)}
.sec-dark p{color:rgba(255,255,255,.8)}
.note{font-size:.85rem;margin-top:1.4rem;font-style:italic}
.grid{display:grid;gap:1.25rem}

/* pricing */
.price-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.price{background:#fff;border:2px solid var(--line);border-radius:var(--radius);overflow:hidden;text-align:center;transition:transform .25s,box-shadow .25s}
.price:hover{transform:translateY(-6px);box-shadow:0 20px 40px -24px rgba(76,29,149,.5)}
.price .media{border-radius:0;aspect-ratio:16/10}
.price-body{padding:1.2rem 1rem 1.6rem}
.from{display:block;color:var(--muted);font-size:.9rem}
.amt{display:block;font-size:2rem;font-weight:900;color:var(--primary);line-height:1.2}
.unit{color:var(--muted);font-size:.9rem}

/* offers */
.combos{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-bottom:2.2rem}
.combo{background:#fff;color:var(--ink);border-radius:var(--radius);padding:1.8rem;border-top:6px solid var(--accent)}
.tag{display:inline-block;background:var(--primary);color:#fff;font-weight:700;font-size:.8rem;padding:.25rem .8rem;border-radius:6px;letter-spacing:.05em}
.combo h3{font-size:1.7rem;font-weight:900;color:var(--primary);margin:.8rem 0}
.combo li,.tier li{padding:.25rem 0 .25rem 1.4rem;position:relative;color:var(--ink)}
.combo li::before,.tier li::before{content:"✦";position:absolute;left:0;color:var(--accent)}
.combo small{display:block;margin-top:.8rem;color:var(--muted)}
.mem-title{text-align:center;color:var(--accent);font-size:1.4rem;letter-spacing:.2em;margin:0 0 1.2rem}
.tiers{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin-bottom:2.2rem}
.tier{background:rgba(255,255,255,.08);border:1px solid rgba(212,166,58,.6);border-radius:var(--radius);padding:1.4rem}
.tier b{display:block;font-size:1.2rem;color:var(--accent);margin-bottom:.5rem}
.tier li{color:rgba(255,255,255,.92)}

/* tech / team / cred */
.tech-grid{grid-template-columns:repeat(3,1fr)}
.tech .media{aspect-ratio:4/3;margin-bottom:.8rem}
.team-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.doc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem}
.doc .media{aspect-ratio:1/1;margin-bottom:1rem}
.doc h3{color:var(--primary);text-transform:uppercase}
.doc li{font-size:.92rem;color:var(--muted);padding:.2rem 0 .2rem 1.1rem;position:relative}
.doc li::before{content:"•";position:absolute;left:0;color:var(--accent)}
.cred-grid{grid-template-columns:repeat(3,1fr);max-width:900px;margin-inline:auto}
.cred .media{aspect-ratio:3/4;border:6px solid #fff;outline:2px solid var(--accent);box-shadow:0 18px 36px -20px rgba(31,17,71,.55)}
.cred figcaption{text-align:center;font-size:.9rem;color:var(--muted);margin-top:.6rem}

/* cards / testimonials / press */
.cards{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem;transition:transform .25s}
.card:hover{transform:translateY(-5px)}
.icon{width:52px;height:52px;border-radius:14px;background:var(--soft);display:grid;place-items:center;font-size:1.5rem;margin-bottom:1rem}
.quote{display:flex;flex-direction:column;gap:1.2rem;justify-content:space-between}
.quote blockquote{color:var(--ink)}
.quote figcaption{display:flex;align-items:center;gap:.8rem}
.quote figcaption b{display:block}.quote figcaption span:not(.avatar){font-size:.86rem;color:var(--muted)}
.avatar{width:46px;height:46px;border-radius:50%;object-fit:cover;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;flex:none;aspect-ratio:1}
.press{grid-template-columns:repeat(3,1fr)}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s}
.p-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px -24px rgba(76,29,149,.5)}
.p-card a{text-decoration:none;display:block}
.p-img{position:relative}
.p-img .media{border-radius:0;aspect-ratio:16/10}
.p-src{position:absolute;left:12px;bottom:12px;background:var(--gold);color:#3a1c00;font-weight:900;font-size:.8rem;letter-spacing:.04em;text-transform:uppercase;padding:.3rem .8rem;border-radius:6px;box-shadow:0 4px 10px rgba(0,0,0,.25)}
.p-body{padding:1.1rem 1.2rem 1.4rem}
.p-body time{display:block;font-size:.8rem;color:var(--muted);margin-bottom:.4rem}
.p-body h3{font-size:1.05rem;line-height:1.4;color:var(--ink);margin:0}
.reasons{grid-template-columns:repeat(4,1fr)}
.reason{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s}
.reason:hover{transform:translateY(-6px);box-shadow:0 20px 40px -24px rgba(76,29,149,.5)}
.r-img .media{border-radius:0;aspect-ratio:4/3}
.r-num{position:absolute;top:12px;left:12px;width:38px;height:38px;border-radius:50%;background:var(--gold);color:#3a1c00;font-weight:900;display:grid;place-items:center;box-shadow:0 4px 10px rgba(0,0,0,.3)}
.r-body{padding:1.1rem 1.2rem 1.4rem}
.r-body h3{color:var(--primary);margin-bottom:.3rem}
.r-body p{font-size:.95rem}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
.g-item{position:relative;overflow:hidden;border-radius:var(--radius)}
.g-video{grid-column:1/-1;width:min(100%,880px);justify-self:center}
.g-item .media,.g-item iframe{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;border:0;border-radius:0}
.g-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:1.5rem 1rem .8rem;color:#fff;font-weight:500;background:linear-gradient(transparent,rgba(31,17,71,.75));pointer-events:none}

.g-video iframe,.g-video .media{aspect-ratio:16/9}
.g-item iframe + figcaption{display:none}

/* cta */
.cta{padding:clamp(48px,6vw,80px) 0;text-align:center;color:#fff;background:linear-gradient(120deg,#2a0f5c,var(--primary) 60%,#6d28d9)}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.88);margin:0 auto 1.8rem;max-width:36em}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.info{display:grid;gap:.7rem;margin-top:1.4rem;color:var(--muted)}
.info a{font-weight:700;text-decoration:none;color:var(--primary)}
.form{display:grid;gap:1rem;background:var(--soft);padding:1.8rem;border-radius:var(--radius)}
.form label{display:grid;gap:.35rem;font-weight:700;font-size:.9rem}
.form input,.form textarea,.form select{font:inherit;padding:.8rem 1rem;border:1px solid var(--line);border-radius:12px;background:#fff;outline:0}
.form input:focus,.form textarea:focus,.form select:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 20%,transparent)}

/* footer */
.foot{background:#170a3a;color:#cfc6ea;padding:2.2rem 0 5.5rem}
.foot p{color:inherit;font-size:.88rem}
.foot b{color:#fff;display:block;margin-bottom:.4rem}
.foot-in{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.foot nav{display:flex;gap:1.2rem;flex-wrap:wrap}
.foot nav a{text-decoration:none}.foot nav a:hover{color:#fff}
.disc{margin-top:1.4rem;font-style:italic;opacity:.8}

/* floating contact */
.float{position:fixed;left:12px;bottom:14px;z-index:60;display:grid;gap:.5rem}
.fl{display:flex;align-items:center;gap:.5rem;padding:.35rem .9rem .35rem .35rem;border-radius:999px;background:#0a68ff;color:#fff;text-decoration:none;font-weight:700;font-size:.9rem;box-shadow:0 6px 16px rgba(0,0,0,.25)}
.fl i{width:32px;height:32px;border-radius:50%;background:#fff;color:#0a68ff;display:grid;place-items:center;font-style:normal;font-weight:900}
.fl-phone{background:var(--primary)}.fl-phone i{color:var(--primary)}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--d,0s),transform .7s var(--d,0s)}
.reveal.r-left{transform:translateX(-36px)}
.reveal.r-right{transform:translateX(36px)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.fx-respect .reveal{opacity:1;transform:none;transition:none}.fx-respect{scroll-behavior:auto}}

/* effects (bật/tắt trong content.js → effects) */
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
@keyframes shine{0%{background-position:0% 50%}100%{background-position:200% 50%}}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-8deg)}50%{transform:translateY(-14px) rotate(8deg)}}
@keyframes swing{0%,100%{transform:rotate(0)}20%{transform:rotate(15deg)}40%{transform:rotate(-10deg)}60%{transform:rotate(5deg)}80%{transform:rotate(-5deg)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
@keyframes ripple{0%{box-shadow:0 0 0 0 rgba(255,255,255,.75)}100%{box-shadow:0 0 0 14px rgba(255,255,255,0)}}
@keyframes glow{0%,100%{filter:drop-shadow(0 0 6px rgba(212,166,58,.35))}50%{filter:drop-shadow(0 0 22px rgba(246,220,139,.85))}}
.hero{overflow:hidden}
.hero-media{position:relative}
.gift{display:none;position:absolute;font-size:clamp(2rem,5vw,3.6rem);line-height:1;pointer-events:none;filter:drop-shadow(0 8px 12px rgba(0,0,0,.35))}
.g1{top:-14px;left:-14px}.g2{bottom:14%;right:-8px}.g3{bottom:-12px;left:14%}
.fx-gifts .gift{display:block;animation:bob 3.6s ease-in-out infinite}
.fx-gifts .g2{animation-delay:-1.2s}.fx-gifts .g3{animation-delay:-2.3s}
.combo{position:relative}
.fx-gifts .combo::after{content:"🎁";position:absolute;top:-18px;right:16px;font-size:2.3rem;transform-origin:top center;animation:swing 2.6s ease-in-out infinite}
.fx-pulse .btn-gold{animation:pulse 1.6s ease-in-out infinite}
.fx-pulse .btn-gold:hover{animation-play-state:paused}
.fx-pulse .badge::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:#ff4d6d;margin-right:.5rem;animation:blink 1.1s infinite}
.fx-pulse .fl-phone i{animation:ripple 1.8s infinite}
.fx-shine .big{display:inline-block;background-image:linear-gradient(100deg,#f6dc8b 0%,var(--accent) 25%,#fff8d6 45%,var(--accent) 65%,#a87c1c 100%);background-size:200% 100%;animation:shine 3s linear infinite,glow 2.4s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.fx-respect *,.fx-respect *::before,.fx-respect *::after{animation:none!important}}

/* responsive */
@media (max-width:860px){
  .hero-in,.contact{grid-template-columns:1fr}
  .tech-grid,.press{grid-template-columns:repeat(2,1fr)}
  .reasons{grid-template-columns:repeat(2,1fr)}
  .reveal.r-left,.reveal.r-right{transform:translateY(24px)}
}
@media (max-width:520px){
  .tech-grid,.press,.reasons{grid-template-columns:1fr}
  .cred-grid{grid-template-columns:repeat(2,1fr)}
  .form{padding:1.3rem}
  .fl span{display:none}.fl{padding:.35rem}
}
.disc.demo{font-style:normal;font-size:.8rem;opacity:.6;margin-top:.5rem}