/* ============================================================
   KEN24 STUDIO — Creative Software Suite
   Signature GOLD (#F8C808) + black · premium dark theme
   ============================================================ */

:root{
  --bg:#0a0907;
  --bg-soft:#0f0d0a;
  --surface:#16130d;
  --surface-2:#1e1a12;
  --surface-3:#28221764;
  --line:rgba(255,255,255,.08);
  --line-gold:rgba(236,166,46,.22);
  --line-strong:rgba(255,255,255,.16);
  --text:#f8f5ec;
  --muted:#b0a892;
  --muted-2:#7c745f;
  --gold:#eca62e;          /* KEN24 — warm amber gold (dịu, đỡ chói) */
  --gold-2:#ffd27a;
  --gold-deep:#bc7a12;
  --amber:#ff8f33;
  --ink:#0c0a05;           /* dark text on gold */
  --ok:#37d39b;
  --radius:20px;
  --radius-sm:14px;
  --max:1180px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --display:"Sora","Inter",sans-serif;
  --industrial:"Anton","Sora",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul{list-style:none}

/* ===== Background FX: blueprint grid + warm aurora + film grain ===== */
html::before{          /* blueprint grid + glowing nodes — TẮT thử (bỏ display:none để bật lại) */
  content:"";display:none;position:fixed;inset:0;z-index:-4;pointer-events:none;
  background-image:
    radial-gradient(rgba(236,166,46,.34) 1.7px,transparent 2.4px),
    linear-gradient(rgba(236,166,46,.12) 1px,transparent 1px),
    linear-gradient(90deg,rgba(236,166,46,.12) 1px,transparent 1px);
  background-size:54px 54px,54px 54px,54px 54px;
  -webkit-mask-image:radial-gradient(140% 120% at 50% 2%,#000 22%,rgba(0,0,0,.55) 60%,transparent 92%);
          mask-image:radial-gradient(140% 120% at 50% 2%,#000 22%,rgba(0,0,0,.55) 60%,transparent 92%);
}
body::before{          /* warm aurora glows, slow drift */
  content:"";position:fixed;inset:-12%;z-index:-3;pointer-events:none;
  background:
    radial-gradient(640px 520px at 8% -4%, rgba(236,166,46,.22), transparent 60%),
    radial-gradient(620px 520px at 94% 4%, rgba(255,143,51,.17), transparent 58%),
    radial-gradient(760px 620px at 80% 86%, rgba(236,166,46,.14), transparent 60%),
    radial-gradient(620px 540px at 14% 94%, rgba(120,96,255,.05), transparent 62%);
  animation:auroraDrift 24s ease-in-out infinite alternate;
}
body::after{           /* film grain texture */
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.07;mix-blend-mode:soft-light;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:180px 180px;
}
@keyframes auroraDrift{
  from{transform:translate3d(-1.4%,-1%,0) scale(1)}
  to{transform:translate3d(2.2%,1.6%,0) scale(1.07)}
}
@media(prefers-reduced-motion:reduce){body::before{animation:none}}
.bg-canvas{position:fixed;inset:0;z-index:-2;pointer-events:none;display:block}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gold);
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.grad-text{
  background:linear-gradient(100deg,#fff 0%,#ffe9a8 28%,var(--gold) 58%,var(--amber) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.gold{color:var(--gold)}

h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.02em}
.h-hero{font-size:clamp(42px,6.6vw,82px);line-height:1.02}
.h-sec{font-size:clamp(30px,4.4vw,48px)}
.lead{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:620px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{
  background:linear-gradient(120deg,var(--gold-2),var(--gold) 52%,var(--gold-deep));
  color:var(--ink);box-shadow:0 10px 30px -8px rgba(236,166,46,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 44px -8px rgba(236,166,46,.7)}
.btn-ghost{background:rgba(255,255,255,.05);color:#fff;border:1px solid var(--line-strong);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(236,166,46,.1);border-color:var(--line-gold);transform:translateY(-2px)}
.btn-light{background:#fff;color:#0a0a12}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 40px -10px rgba(255,255,255,.4)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- Offer bar ---------- */
.offerbar{
  position:relative;z-index:60;
  background:linear-gradient(90deg,rgba(236,166,46,.14),rgba(255,143,51,.12),rgba(236,166,46,.14));
  border-bottom:1px solid var(--line-gold);
  text-align:center;font-size:14px;padding:10px 16px;color:#f3ecd8;
}
.offerbar b{color:var(--gold)}
.offerbar a{color:#fff;font-weight:700;text-decoration:underline;text-underline-offset:3px;margin-left:6px}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(140%) blur(14px);
  background:rgba(10,9,7,.62);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s;
}
.nav.scrolled{background:rgba(10,9,7,.9);border-bottom-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;white-space:nowrap;line-height:1}
.logo-img{height:30px;width:auto;flex:0 0 auto;display:block;filter:drop-shadow(0 4px 10px rgba(236,166,46,.35))}
.brand-txt{
  font-family:var(--industrial);font-size:21px;letter-spacing:.04em;
  color:var(--gold);text-transform:uppercase;line-height:1;flex:0 0 auto;white-space:nowrap;
  display:inline-flex;align-items:center;
}
.brand-txt::before{content:"–";color:var(--gold-deep);margin-right:11px;font-weight:400}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:8px 14px;border-radius:10px;font-size:15px;color:var(--muted);font-weight:500;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--gold);background:rgba(236,166,46,.08)}
.nav-cta{display:flex;align-items:center;gap:10px}
.burger{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.04)}
.burger span{display:block;width:18px;height:2px;background:var(--gold);margin:3px auto;border-radius:2px;transition:.25s}
.lang-switch{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:rgba(255,255,255,.04)}
.lang-switch button{padding:7px 12px;font-size:12.5px;font-weight:700;color:var(--muted);transition:.2s;letter-spacing:.02em;line-height:1}
.lang-switch button.active{background:linear-gradient(120deg,var(--gold-2),var(--gold-deep));color:var(--ink)}
.lang-switch button:not(.active):hover{color:var(--gold)}
.nav-signin{font-size:14px;font-weight:600;color:var(--muted);padding:8px 4px;transition:.2s;white-space:nowrap}
.nav-signin:hover{color:var(--gold)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:84px 0 40px;text-align:center}
.hero::before{
  content:"";position:absolute;top:-40px;left:50%;transform:translateX(-50%);
  width:760px;height:520px;max-width:120vw;z-index:-1;pointer-events:none;
  background:radial-gradient(circle at 50% 40%,rgba(236,166,46,.22),rgba(255,143,51,.08) 38%,transparent 66%);
  filter:blur(8px);
}
.hero .lead{margin:22px auto 0}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.hero-note{margin-top:16px;font-size:13px;color:var(--muted-2)}

/* showcase strip */
.showcase{display:flex;gap:18px;justify-content:center;margin:64px auto 0;perspective:1400px;flex-wrap:wrap}
.show-tile{
  position:relative;width:188px;height:240px;border-radius:22px;overflow:hidden;flex:none;
  border:1px solid var(--line-strong);
  box-shadow:0 30px 60px -24px rgba(0,0,0,.85);
  transition:transform .5s var(--ease);
}
.show-tile:nth-child(odd){transform:translateY(14px) rotate(-2deg)}
.show-tile:nth-child(even){transform:translateY(-6px) rotate(2deg)}
.showcase:hover .show-tile{transform:translateY(0) rotate(0)}
.show-tile .art{position:absolute;inset:0}
.show-tile .meta{position:absolute;left:0;right:0;bottom:0;padding:16px;background:linear-gradient(transparent,rgba(0,0,0,.82))}
.show-tile .meta .ic{width:30px;height:30px;border-radius:8px;background:rgba(0,0,0,.28);display:grid;place-items:center;margin-bottom:8px}
.show-tile .meta b{font-family:var(--display);font-size:15px}
.show-tile .meta span{display:block;font-size:11px;color:rgba(255,255,255,.72)}

/* trusted row */
.trusted{display:flex;gap:30px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:64px;opacity:.7;font-size:13px;letter-spacing:.06em;color:var(--muted)}
.trusted b{color:var(--gold);font-weight:600}

/* ---------- Marquee ---------- */
.marquee{
  overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(236,166,46,.04);padding:20px 0;margin-top:8px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
}
.marquee-track{display:flex;width:max-content;animation:scroll 28s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track .grp{display:flex;align-items:center;gap:42px;padding-right:42px}
.marquee-track .grp span{font-family:var(--industrial);font-size:23px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.marquee-track .grp .lit{color:var(--text)}
.marquee-track .grp i{color:var(--gold);font-style:normal;font-size:14px}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---------- App ecosystem grid ---------- */
.sec-head{text-align:center;max-width:680px;margin:0 auto 56px}
.sec-head .lead{margin:16px auto 0}
.apps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.app-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  padding:26px;transition:transform .4s var(--ease),border-color .3s,box-shadow .4s;isolation:isolate;
}
.app-card::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.16;transition:opacity .4s;
  background:var(--cardgrad,linear-gradient(135deg,var(--gold),var(--amber)));
}
.app-card:hover{transform:translateY(-6px);border-color:var(--line-gold);box-shadow:0 24px 50px -22px rgba(0,0,0,.9)}
.app-card:hover::before{opacity:.28}
.app-ic{
  width:54px;height:54px;border-radius:15px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--cardgrad,linear-gradient(135deg,var(--gold),var(--amber)));
  box-shadow:0 10px 26px -8px rgba(0,0,0,.7);color:#fff;
}
.app-ic svg{width:28px;height:28px}
.app-card h3{font-size:21px;margin-bottom:8px}
.app-card .tag{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}
.app-card p{color:var(--muted);font-size:15px;margin:10px 0 18px}
.app-card .row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.app-card .price{font-family:var(--display);font-weight:700;font-size:17px}
.app-card .price small{display:block;font-size:12px;color:var(--muted-2);font-weight:500}
.chev{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--gold)}
.chev svg{width:16px;height:16px;transition:transform .25s}
.app-card:hover .chev svg{transform:translateX(4px)}

/* ---------- Feature reasons ---------- */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.why-item{padding:26px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);transition:.3s}
.why-item:hover{border-color:var(--line-gold)}
.why-item .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;background:rgba(236,166,46,.1);border:1px solid var(--line-gold)}
.why-item .ic svg{width:24px;height:24px;color:var(--gold)}
.why-item h4{font-family:var(--display);font-size:18px;margin-bottom:6px}
.why-item p{font-size:14px;color:var(--muted)}

/* ---------- Pricing ---------- */
.tabs{display:flex;gap:8px;justify-content:center;margin:0 auto 44px;background:var(--surface);border:1px solid var(--line);padding:6px;border-radius:999px;width:fit-content}
.tabs button{padding:10px 22px;border-radius:999px;font-weight:700;font-size:14px;color:var(--muted);transition:.25s}
.tabs button.active{background:linear-gradient(120deg,var(--gold-2),var(--gold-deep));color:var(--ink)}
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.plan{
  position:relative;border-radius:var(--radius);background:var(--surface);
  border:1px solid var(--line);padding:30px;display:flex;flex-direction:column;gap:18px;
  transition:transform .35s var(--ease),border-color .3s;
}
.plan:hover{transform:translateY(-5px);border-color:var(--line-gold)}
.plan.featured{
  border:1px solid transparent;
  background:
    linear-gradient(var(--surface),var(--surface)) padding-box,
    linear-gradient(135deg,var(--gold-2),var(--gold),var(--amber)) border-box;
  box-shadow:0 30px 70px -30px rgba(236,166,46,.5);
}
.plan .badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(120deg,var(--gold-2),var(--gold-deep));color:var(--ink);font-size:12px;font-weight:800;padding:5px 14px;border-radius:999px;letter-spacing:.03em;white-space:nowrap}
.plan .save{position:absolute;top:18px;right:18px;background:var(--gold);color:var(--ink);font-size:11px;font-weight:800;padding:4px 9px;border-radius:8px}
.plan h3{font-size:22px}
.plan .desc{font-size:14px;color:var(--muted);min-height:42px}
.plan .price{font-family:var(--display);display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.plan .price .now{font-size:36px;font-weight:800}
.plan .price .per{font-size:14px;color:var(--muted)}
.plan .price .old{font-size:16px;color:var(--muted-2);text-decoration:line-through}
.plan ul{display:flex;flex-direction:column;gap:11px;margin-top:4px}
.plan li{display:flex;gap:10px;font-size:14.5px;color:#ddd6c6}
.plan li svg{width:18px;height:18px;flex:none;color:var(--gold);margin-top:2px}
.includes{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:6px;border-top:1px solid var(--line);margin-top:4px}
.includes .lbl{font-size:12px;color:var(--muted-2);width:100%}
.mini-ic{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;color:#fff}
.mini-ic svg{width:17px;height:17px}

/* ---------- Features page cards ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{border-radius:var(--radius);overflow:hidden;background:var(--surface);border:1px solid var(--line);transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.feat-card:hover{transform:translateY(-6px);border-color:var(--line-gold);box-shadow:0 26px 54px -24px rgba(0,0,0,.9)}
.feat-art{height:200px;position:relative;display:grid;place-items:center}
.feat-art .glyph{width:74px;height:74px;border-radius:20px;background:rgba(0,0,0,.3);backdrop-filter:blur(4px);display:grid;place-items:center;border:1px solid rgba(255,255,255,.25)}
.feat-art .glyph svg{width:40px;height:40px;color:#fff}
.feat-art .pill{position:absolute;top:14px;left:14px;font-size:11px;font-weight:700;background:rgba(0,0,0,.42);backdrop-filter:blur(4px);padding:5px 10px;border-radius:8px;border:1px solid rgba(255,255,255,.18)}
.feat-body{padding:22px}
.feat-body .tag{font-size:12px;font-weight:700;color:var(--gold);text-transform:uppercase;letter-spacing:.05em}
.feat-body h3{font-size:20px;margin:7px 0 8px}
.feat-body p{font-size:14.5px;color:var(--muted);margin-bottom:18px}
.feat-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- CTA band ---------- */
.cta-band{position:relative;border-radius:28px;overflow:hidden;padding:64px 40px;text-align:center;border:1px solid var(--line-gold)}
.cta-band::before{content:"";position:absolute;inset:0;z-index:-1;background:
  radial-gradient(120% 140% at 50% -20%,rgba(236,166,46,.32),transparent 60%),
  linear-gradient(180deg,rgba(236,166,46,.08),rgba(255,143,51,.05))}
.cta-band h2{margin-bottom:14px}
.cta-band .lead{margin:0 auto 28px;color:#efe7d2}
.cta-band .hero-cta{margin-top:0}

/* ---------- Footer ---------- */
.foot{border-top:1px solid var(--line);padding:64px 0 40px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.foot h5{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px}
.foot a:not(.btn):not(.brand){display:block;color:var(--muted);font-size:14.5px;padding:5px 0;transition:.2s}
.foot a:not(.btn):not(.brand):hover{color:var(--gold)}
.foot .about .brand{margin-bottom:4px}
.foot .about p{color:var(--muted);font-size:14.5px;margin:14px 0;max-width:300px}
.contact-line{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:14.5px;margin:8px 0}
.contact-line svg{width:17px;height:17px;color:var(--gold);flex:none}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted-2)}

/* ---------- Buy modal ---------- */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal .backdrop{position:absolute;inset:0;background:rgba(4,3,1,.74);backdrop-filter:blur(8px)}
.modal .panel{position:relative;width:100%;max-width:440px;border-radius:24px;overflow:hidden auto;max-height:92vh;background:var(--surface);border:1px solid var(--line-gold);box-shadow:0 40px 90px -30px rgba(0,0,0,.9);animation:pop .35s var(--ease)}
@keyframes pop{from{transform:translateY(18px) scale(.96);opacity:0}to{transform:none;opacity:1}}
.modal .top{padding:26px 26px 0;position:relative}
.modal .top .badge{display:inline-flex;font-size:12px;font-weight:700;color:var(--gold);background:rgba(236,166,46,.14);padding:5px 12px;border-radius:999px;margin-bottom:12px}
.modal h3{font-size:23px}
.modal .prod{color:var(--gold);font-size:14px;margin-top:4px;font-weight:600}
.modal .close{position:absolute;top:18px;right:18px;width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.06);display:grid;place-items:center;font-size:18px;color:var(--muted)}
.modal .close:hover{background:rgba(255,255,255,.12);color:#fff}
.modal .body{padding:20px 26px 26px;display:flex;flex-direction:column;gap:12px}
.pay-opt{display:flex;align-items:center;gap:14px;padding:15px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--line);transition:.25s}
.pay-opt:hover{border-color:var(--line-gold);transform:translateY(-2px)}
.pay-opt .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;flex:none}
.pay-opt b{display:block;font-size:15px}
.pay-opt span{font-size:13px;color:var(--muted)}
.modal .fine{font-size:12px;color:var(--muted-2);text-align:center;margin-top:4px}
/* checkout (card form) */
.modal .panel.checkout{max-width:432px}
.checkout-prod{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding:13px 15px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line)}
.checkout-prod .cp-name{font-weight:600;font-size:14.5px}
.checkout-prod .cp-price{font-family:var(--display);font-weight:800;font-size:19px;color:var(--gold);white-space:nowrap}
.checkout-prod .cp-price small{font-size:12px;color:var(--muted);font-weight:500;margin-left:2px}
.cc-wrap{position:relative}
.cc-brand{position:absolute;right:13px;top:50%;transform:translateY(-50%);font-weight:800;font-size:13px;letter-spacing:.06em;color:var(--muted-2);pointer-events:none}
.cc-brand.visa{color:#2563eb}
.cc-brand.mc{color:#ff5f00}
.cc-brand.amex{color:#2e77bc}
.cc-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pay-btn{margin-top:8px}
.cc-secure{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted-2);font-size:12px;margin-top:12px}
.cc-secure svg{width:14px;height:14px;flex:none}
.cc-alt{text-align:center;font-size:13px;color:var(--muted);margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.cc-alt a{color:var(--gold);font-weight:600}

/* ---------- Auth / login ---------- */
.auth{min-height:calc(100vh - 68px);display:grid;place-items:center;padding:48px 24px}
.auth-card{width:100%;max-width:430px;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:38px 34px 32px;box-shadow:0 40px 90px -40px rgba(0,0,0,.92)}
.auth-card .head{text-align:center;margin-bottom:24px}
.auth-card .head h1{font-size:27px}
.auth-card .head .sub{color:var(--muted);font-size:14.5px;margin-top:8px}
.auth-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px;border-radius:12px;background:#fff;color:#1b1b1f;font-weight:600;font-size:14.5px;transition:transform .2s var(--ease),box-shadow .2s}
.auth-google:hover{transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(255,255,255,.35)}
.auth-divider{display:flex;align-items:center;gap:14px;color:var(--muted-2);font-size:12.5px;margin:20px 0}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:var(--line)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;font-weight:500}
.field .input-wrap{position:relative}
.field input{width:100%;padding:13px 15px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);color:var(--text);font-size:15px;font-family:inherit;transition:.2s}
.field input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(236,166,46,.16)}
.field input::placeholder{color:var(--muted-2)}
#pw{padding-right:44px}
.toggle-pw{position:absolute;right:8px;top:50%;transform:translateY(-50%);color:var(--muted-2);padding:6px;display:grid;place-items:center}
.toggle-pw:hover{color:var(--gold)}
.auth-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:4px 0 20px;font-size:13.5px}
.auth-row label{display:flex;align-items:center;gap:8px;color:var(--muted);cursor:pointer}
.auth-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--gold);cursor:pointer}
.auth-row a{color:var(--gold);font-weight:600}
.auth-foot{text-align:center;margin-top:22px;font-size:14px;color:var(--muted)}
.auth-foot a{color:var(--gold);font-weight:700}
.auth-note{text-align:center;font-size:12px;color:var(--muted-2);margin-top:16px}
.auth-msg{display:none;margin-top:14px;padding:11px 14px;border-radius:11px;font-size:13.5px;text-align:center;line-height:1.4}
.auth-msg.show{display:block}
.auth-msg.ok{background:rgba(55,211,155,.12);color:#7be3bd;border:1px solid rgba(55,211,155,.3)}
@media(max-width:680px){ .auth-card{padding:30px 22px 26px} body:not([data-page="login"]) .nav-signin{display:none} }

/* ---------- Store (catalog) ---------- */
.store{display:grid;grid-template-columns:218px 1fr;gap:30px;align-items:start}
.store-cats{position:sticky;top:88px;display:flex;flex-direction:column;gap:4px}
.store-cats button{text-align:left;padding:11px 14px;border-radius:12px;font-size:14.5px;font-weight:600;color:var(--muted);transition:.2s;border:1px solid transparent}
.store-cats button:hover{color:var(--text);background:rgba(255,255,255,.04)}
.store-cats button.active{color:var(--gold);background:rgba(236,166,46,.1);border-color:var(--line-gold)}
.store-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.store-card{position:relative;display:flex;flex-direction:column;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);padding:24px;transition:transform .35s var(--ease),border-color .3s,box-shadow .35s;isolation:isolate;overflow:hidden}
.store-card::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.14;transition:opacity .35s;background:var(--cg,linear-gradient(135deg,var(--gold),var(--amber)))}
.store-card:hover{transform:translateY(-5px);border-color:var(--line-gold);box-shadow:0 24px 50px -24px rgba(0,0,0,.85)}
.store-card:hover::before{opacity:.24}
.store-card.featured{border:1px solid transparent;background:linear-gradient(var(--surface),var(--surface)) padding-box,linear-gradient(135deg,var(--gold-2),var(--gold),var(--amber)) border-box}
.store-card .sc-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.store-card .app-ic{width:48px;height:48px;border-radius:13px;margin:0;flex:none}
.store-card .app-ic svg{width:25px;height:25px}
.store-card .sc-tag{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.store-card h3{font-size:19px;margin-top:2px}
.store-card .sc-desc{color:var(--muted);font-size:14px;margin:0 0 18px;flex:1}
.store-card .sc-foot{display:flex;align-items:flex-end;justify-content:space-between;gap:12px}
.store-card .sc-price{font-family:var(--display);font-weight:700;font-size:18px;line-height:1.2}
.store-card .sc-price small{font-size:12px;color:var(--muted-2);font-weight:500}
.store-card .sc-price .old{display:block;font-size:12px;color:var(--muted-2);text-decoration:line-through;font-weight:500}
.store-card .sc-badge{position:absolute;top:14px;right:14px;background:var(--gold);color:var(--ink);font-size:11px;font-weight:800;padding:4px 9px;border-radius:8px}

/* ---------- Checkout page ---------- */
.checkout-page{padding:52px 0 90px}
.checkout-grid{display:grid;grid-template-columns:1fr 372px;gap:32px;align-items:start}
.co-back{display:inline-block;color:var(--muted);font-size:14px;font-weight:600;margin-bottom:16px}
.co-back:hover{color:var(--gold)}
.co-main h1{font-size:30px;margin-bottom:22px}
.co-cart{position:sticky;top:88px;border-radius:20px;background:var(--surface);border:1px solid var(--line-gold);padding:26px;box-shadow:0 30px 70px -40px rgba(0,0,0,.9)}
.co-cart h3{font-size:18px;margin-bottom:18px}
.co-period{display:flex;gap:6px;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:5px;margin-bottom:18px}
.co-period button{flex:1;padding:9px;border-radius:999px;font-size:13px;font-weight:700;color:var(--muted);transition:.2s}
.co-period button.active{background:linear-gradient(120deg,var(--gold-2),var(--gold-deep));color:var(--ink)}
.co-item{display:flex;align-items:center;gap:13px;padding:13px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line);margin-bottom:18px}
.co-item .app-ic{width:42px;height:42px;border-radius:11px;margin:0;flex:none}
.co-item .app-ic svg{width:22px;height:22px}
.co-item .ci-name{font-weight:600;font-size:14.5px}
.co-item .ci-cat{font-size:12px;color:var(--muted)}
.co-item .ci-price{margin-left:auto;font-weight:700;font-family:var(--display);white-space:nowrap}
.co-rows{display:flex;flex-direction:column;gap:11px;font-size:14.5px}
.co-rows .r{display:flex;justify-content:space-between;color:var(--muted)}
.co-rows .r .v{color:var(--text)}
.co-rows .r.total{border-top:1px solid var(--line);padding-top:15px;margin-top:5px;color:var(--text);font-size:15px;font-weight:500}
.co-rows .r.total .lbl{font-family:var(--display);font-weight:800;font-size:20px}
.co-rows .r.total .v{font-family:var(--display);font-weight:800;font-size:22px;color:var(--gold)}

@media(max-width:900px){
  .store{grid-template-columns:1fr;gap:18px}
  .store-cats{position:static;flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .store-cats button{white-space:nowrap;flex:none}
  .store-grid{grid-template-columns:1fr}
  .checkout-grid{grid-template-columns:1fr}
  .co-cart{position:static;order:-1}
}

/* ---------- reveal anim ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .apps-grid,.feat-grid,.pricing{grid-template-columns:1fr 1fr}
  .why{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .plan.featured{order:-1}
}
@media(max-width:680px){
  .section{padding:68px 0}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:78%;max-width:320px;z-index:70;
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--bg-soft);border-left:1px solid var(--line-gold);
    padding:88px 18px 24px;transform:translateX(105%);transition:transform .35s var(--ease);
  }
  .nav-links.open{transform:none;box-shadow:-30px 0 80px -20px rgba(0,0,0,.85)}
  .nav-links a{padding:14px 16px;font-size:16px}
  .burger{display:block;position:relative;z-index:80}
  .nav-cta .btn{display:none}
  .nav-cta .burger{display:block}
  .apps-grid,.feat-grid,.pricing,.why,.foot-grid{grid-template-columns:1fr}
  .showcase{gap:14px}
  .show-tile{width:150px;height:196px}
  .show-tile:nth-child(odd),.show-tile:nth-child(even){transform:none;rotate:0}
  .marquee-track .grp span{font-size:19px}
  .cta-band{padding:48px 22px}
  .foot-bottom{flex-direction:column;text-align:center}
}

/* ===== Banner khuyến mãi (do dashboard Quảng cáo điều khiển) ===== */
.k24-banner{position:relative;z-index:60;display:flex;align-items:center;justify-content:center;gap:12px;
  padding:9px 42px 9px 18px;font-family:var(--font);font-size:13.5px;font-weight:600;color:var(--ink);
  text-align:center;line-height:1.35;background:linear-gradient(135deg,var(--gold-2),var(--gold))}
.k24-banner a.k24-banner-link{color:inherit;text-decoration:underline;text-underline-offset:2px}
.k24-banner .k24-banner-x{position:absolute;right:12px;top:50%;transform:translateY(-50%);
  background:transparent;border:0;color:inherit;font-size:20px;line-height:1;cursor:pointer;opacity:.65;padding:2px 6px}
.k24-banner .k24-banner-x:hover{opacity:1}
@media(max-width:640px){.k24-banner{font-size:12.5px;padding:8px 38px 8px 14px}}

/* ===== Trang Thanh toán — ô mã giảm giá ===== */
.co-promo{display:flex;gap:8px;margin:14px 0 4px}
.co-promo input{flex:1;text-transform:uppercase}
.co-promo input::placeholder{text-transform:none}
.co-promo-msg{font-size:12.5px;min-height:16px;margin-bottom:6px}
.co-promo-msg.ok{color:var(--ok)} .co-promo-msg.err{color:#ff8089}
.co-rows .r.co-disc .v{color:var(--ok)}