/* ===== Vinta · appvinta.com — shared design system ===== */
:root{
  --bg:#06090F;--bg-2:#0A1018;--surface:#0E1622;--surface-2:#121D2C;
  --line:rgba(120,170,255,.12);--line-soft:rgba(255,255,255,.07);
  --azure:#4C8DFF;--cyan:#38BDF8;--violet:#8B7CFF;--magenta:#C471F5;
  --ink:#EAF0F8;--muted:#8A97AB;--muted-2:#586277;
  --radius:22px;--maxw:1200px;--ease:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"Satoshi",-apple-system,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{font-family:"Clash Display",sans-serif;font-weight:600;line-height:1.04;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{max-width:100%}
::selection{background:var(--azure);color:#050810}

/* accent theming: pages set --acc / --acc-2 on body */
body.fact{--acc:var(--azure);--acc-2:var(--cyan);--acc-rgb:76,141,255}
body.ai{--acc:var(--violet);--acc-2:var(--magenta);--acc-rgb:139,124,255}

/* Atmosphere */
.atmos{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;mix-blend-mode:screen}
.blob.b1{width:640px;height:640px;background:radial-gradient(circle,#1e3a8a,transparent 70%);top:-200px;left:-140px;animation:d1 24s var(--ease) infinite alternate}
.blob.b2{width:560px;height:560px;background:radial-gradient(circle,#4c1d95,transparent 70%);top:14%;right:-180px;animation:d2 28s var(--ease) infinite alternate}
.blob.b3{width:480px;height:480px;background:radial-gradient(circle,#0e4f6b,transparent 70%);bottom:-160px;left:34%;animation:d3 32s var(--ease) infinite alternate}
@keyframes d1{to{transform:translate(120px,90px) scale(1.15)}}
@keyframes d2{to{transform:translate(-110px,120px) scale(1.12)}}
@keyframes d3{to{transform:translate(80px,-110px) scale(1.2)}}
.grid-overlay{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 20%,transparent 75%);opacity:.5}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* Layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;position:relative;z-index:2}
section{position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:"Satoshi";font-weight:700;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc,var(--azure));padding:7px 14px;border:1px solid var(--line);border-radius:100px;background:rgba(var(--acc-rgb,76 141 255),.05)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 12px currentColor}

/* Nav */
nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:all .4s var(--ease)}
nav .bar{max-width:var(--maxw);margin:0 auto;padding:18px 28px;display:flex;align-items:center;justify-content:space-between}
nav.scrolled{backdrop-filter:blur(18px);background:rgba(6,9,15,.75);border-bottom:1px solid var(--line-soft)}
nav.scrolled .bar{padding:13px 28px}
.logo{display:flex;align-items:center;gap:10px;font-family:"Clash Display";font-weight:700;font-size:24px;letter-spacing:-.02em}
.logo .mk{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--azure),var(--violet));display:grid;place-items:center;box-shadow:0 6px 22px rgba(76,141,255,.4)}
.logo .mk svg{width:19px;height:19px}
.logo b{background:linear-gradient(100deg,var(--azure),var(--violet));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo .sub{font-size:13px;font-weight:600;color:var(--muted);font-family:"Satoshi";margin-left:-2px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:15px;color:var(--muted);font-weight:500;transition:color .25s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:"Satoshi";font-weight:700;font-size:15px;padding:12px 22px;border-radius:100px;cursor:pointer;border:1px solid transparent;transition:all .3s var(--ease);white-space:nowrap}
.btn-primary{background:linear-gradient(100deg,var(--acc,var(--azure)),var(--violet));color:#fff;box-shadow:0 8px 30px rgba(var(--acc-rgb,76 141 255),.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(var(--acc-rgb,76 141 255),.45)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line-soft);color:var(--ink)}
.btn-ghost:hover{border-color:var(--acc,var(--azure));background:rgba(var(--acc-rgb,76 141 255),.06)}
.nav-cta{display:flex;align-items:center;gap:14px}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--ink);border-radius:2px}

/* Page hero */
.phero{padding:150px 0 70px}
.phero .back{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--muted);margin-bottom:22px;transition:.25s}
.phero .back:hover{color:var(--acc)}
.phero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.phero h1{font-size:clamp(2.6rem,5.5vw,4.6rem);margin:20px 0 0}
.phero h1 em{font-style:normal;background:linear-gradient(105deg,var(--acc),var(--violet));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.phero .lead{font-size:clamp(1.05rem,1.5vw,1.25rem);color:var(--muted);max-width:560px;margin:26px 0 32px;line-height:1.65}
.phero .lead b{color:var(--ink);font-weight:500}
.phero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.badge-live{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:6px 13px;border-radius:100px;background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.28);color:#34D399}
.badge-live .d{width:7px;height:7px;border-radius:50%;background:#34D399;box-shadow:0 0 8px #34D399}

/* App mock */
.mock{position:relative;border-radius:18px;border:1px solid var(--line-soft);background:linear-gradient(160deg,var(--surface),var(--bg-2));overflow:hidden;box-shadow:0 40px 80px -30px rgba(0,0,0,.7)}
.mock-bar{display:flex;align-items:center;gap:7px;padding:14px 16px;border-bottom:1px solid var(--line-soft)}
.mock-bar i{width:11px;height:11px;border-radius:50%;background:#2a3547;display:block}
.mock-bar .url{margin-left:12px;font-size:12px;color:var(--muted-2);background:rgba(255,255,255,.03);padding:5px 12px;border-radius:7px;flex:1}
.mock-body{padding:20px}
.mrow{display:flex;gap:12px;margin-bottom:12px}
.mkpi{flex:1;border:1px solid var(--line-soft);border-radius:12px;padding:14px;background:rgba(255,255,255,.015)}
.mkpi .k{font-size:11px;color:var(--muted-2);text-transform:uppercase;letter-spacing:.06em}
.mkpi .v{font-family:"Clash Display";font-weight:600;font-size:1.4rem;margin-top:5px;color:var(--acc)}
.mbars{display:flex;align-items:flex-end;gap:8px;height:96px;padding:14px;border:1px solid var(--line-soft);border-radius:12px;background:rgba(255,255,255,.015)}
.mbars span{flex:1;border-radius:5px 5px 2px 2px;opacity:.85;background:linear-gradient(var(--acc),rgba(var(--acc-rgb),.15))}
.mchat{border:1px solid var(--line-soft);border-radius:12px;padding:14px;background:rgba(255,255,255,.015);display:flex;flex-direction:column;gap:9px}
.msg{max-width:80%;padding:9px 13px;border-radius:12px;font-size:12.5px;line-height:1.4}
.msg.in{background:rgba(255,255,255,.05);align-self:flex-start;border-bottom-left-radius:3px}
.msg.out{background:linear-gradient(135deg,var(--violet),var(--azure));color:#fff;align-self:flex-end;border-bottom-right-radius:3px}
.msg .ai-tag{display:block;font-size:9.5px;opacity:.85;margin-bottom:2px;font-weight:700;letter-spacing:.04em}

/* Section head */
.sec-head{max-width:660px;margin-bottom:52px}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head h2{font-size:clamp(2rem,3.8vw,3rem);margin:18px 0 0}
.sec-head p{color:var(--muted);margin-top:16px;font-size:1.06rem}
.pad{padding:96px 0}

/* Feature grid */
.fgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fcard{position:relative;background:linear-gradient(180deg,var(--surface),var(--bg-2));border:1px solid var(--line-soft);border-radius:18px;padding:28px;overflow:hidden;transition:transform .5s var(--ease),border-color .5s}
.fcard:hover{transform:translateY(-5px);border-color:var(--line)}
.fcard .ic{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;background:rgba(var(--acc-rgb),.1);border:1px solid rgba(var(--acc-rgb),.22);color:var(--acc)}
.fcard .ic svg{width:24px;height:24px}
.fcard h3{font-size:1.28rem;margin-bottom:7px}
.fcard p{color:var(--muted);font-size:.96rem}

/* Alternating feature rows */
.frow{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:30px}
.frow.rev{direction:rtl}.frow.rev>*{direction:ltr}
.frow .tx h3{font-size:clamp(1.6rem,2.6vw,2.2rem);margin:14px 0 0}
.frow .tx p{color:var(--muted);margin:16px 0 20px;font-size:1.03rem}
.mini-list{display:flex;flex-direction:column;gap:11px}
.mini-list .it{display:flex;align-items:flex-start;gap:10px;font-size:.97rem;color:#C7D2E0}
.mini-list .it svg{width:18px;height:18px;flex-shrink:0;margin-top:3px;color:var(--acc)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:st}
.step{padding:28px 24px;border-radius:16px;border:1px solid var(--line-soft);background:rgba(255,255,255,.015);transition:.4s}
.step:hover{border-color:var(--line);transform:translateY(-4px)}
.step .n{counter-increment:st;width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--acc),var(--violet));color:#fff;font-family:"Clash Display";font-weight:600;display:grid;place-items:center;margin-bottom:16px}
.step .n::before{content:"0" counter(st)}
.step h4{font-size:1.15rem;margin-bottom:7px}
.step p{color:var(--muted);font-size:.93rem}

/* Pricing */
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.price{position:relative;border:1px solid var(--line-soft);border-radius:20px;padding:32px;background:linear-gradient(180deg,var(--surface),var(--bg-2));display:flex;flex-direction:column;transition:.4s}
.price:hover{transform:translateY(-5px);border-color:var(--line)}
.price.feat{border-color:rgba(var(--acc-rgb),.45);box-shadow:0 20px 60px -30px rgba(var(--acc-rgb),.6)}
.price .flag{position:absolute;top:-11px;left:50%;transform:translateX(-50%);font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 14px;border-radius:100px;background:linear-gradient(100deg,var(--acc),var(--violet));color:#fff}
.price h4{font-size:1.3rem}
.price .who{color:var(--muted-2);font-size:.9rem;margin-top:3px}
.price .amt{font-family:"Clash Display";font-weight:600;font-size:2.5rem;margin:20px 0 4px;letter-spacing:-.02em}
.price .amt small{font-size:.95rem;color:var(--muted);font-family:"Satoshi";font-weight:500}
.price ul{list-style:none;margin:22px 0;display:flex;flex-direction:column;gap:11px}
.price li{display:flex;align-items:flex-start;gap:9px;font-size:.94rem;color:#C7D2E0}
.price li svg{width:16px;height:16px;margin-top:3px;flex-shrink:0;color:var(--acc)}
.price .btn{margin-top:auto;justify-content:center}

/* FAQ */
.faq{max-width:800px;margin-inline:auto}
.qa{border-bottom:1px solid var(--line-soft)}
.qa summary{cursor:pointer;list-style:none;padding:22px 4px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:"Clash Display";font-weight:500;font-size:1.15rem}
.qa summary::-webkit-details-marker{display:none}
.qa summary .pl{width:24px;height:24px;flex-shrink:0;position:relative;transition:.3s}
.qa summary .pl::before,.qa summary .pl::after{content:"";position:absolute;background:var(--acc);border-radius:2px;top:50%;left:50%;transform:translate(-50%,-50%)}
.qa summary .pl::before{width:14px;height:2px}
.qa summary .pl::after{width:2px;height:14px;transition:.3s}
.qa[open] summary .pl::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.qa p{color:var(--muted);padding:0 4px 22px;font-size:1rem;max-width:680px}

/* CTA */
.cta{position:relative;border-radius:30px;padding:74px 48px;text-align:center;overflow:hidden;background:linear-gradient(150deg,#132443,#0B1220);border:1px solid var(--line)}
.cta .halo{position:absolute;inset:0;background:radial-gradient(600px circle at 50% 120%,rgba(var(--acc-rgb,76 141 255),.25),transparent 60%)}
.cta h2{font-size:clamp(2.1rem,4.4vw,3.4rem);position:relative;max-width:720px;margin-inline:auto}
.cta h2 .grad{background:linear-gradient(100deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cta p{color:var(--muted);position:relative;max-width:540px;margin:20px auto 34px;font-size:1.1rem}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative}

/* Footer */
footer{padding:66px 0 38px;border-top:1px solid var(--line-soft);margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot-brand p{color:var(--muted);font-size:.95rem;margin:16px 0;max-width:290px}
.by{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);border:1px solid var(--line-soft);padding:8px 14px;border-radius:100px;transition:.3s}
.by:hover{border-color:var(--azure);color:var(--ink)}
.by b{background:linear-gradient(100deg,#B4FF39,#3DE8C4);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:700}
.foot-col h5{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px;font-weight:700}
.foot-col a{display:block;color:var(--muted);font-size:.95rem;margin-bottom:11px;transition:color .25s}
.foot-col a:hover{color:var(--acc,var(--azure))}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:26px;border-top:1px solid var(--line-soft);flex-wrap:wrap;gap:14px;color:var(--muted-2);font-size:14px}

/* Reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}

@media(max-width:900px){
  .nav-links{display:none}.nav-cta .btn-ghost{display:none}.burger{display:flex}
  .phero-grid,.frow,.foot-grid{grid-template-columns:1fr}
  .frow.rev{direction:ltr}
  .fgrid,.steps,.prices{grid-template-columns:1fr}
  .pad{padding:70px 0}.phero{padding:130px 0 50px}
}
@media(max-width:560px){
  .wrap{padding:0 20px}
  .phero-cta,.cta-btns{flex-direction:column;align-items:stretch}
  .phero-cta .btn{justify-content:center}
  .cta{padding:54px 24px}
  .fgrid,.steps,.prices{gap:14px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}