/* ============================================================
   GPTSCM — premium marketing stylesheet
   Apple-grade minimalism · mobile-first · bento layout
   ============================================================ */
:root{
  --ink:#06080f;
  --ink-2:#0d1322;
  --paper:#ffffff;
  --bg:#fbfbfd;
  --bg-2:#f2f3f7;
  --text:#1d1d1f;
  --muted:#6e6e73;
  --muted-2:#86868b;
  --line:rgba(0,0,0,.10);
  --line-light:rgba(255,255,255,.12);
  --brand1:#6d5efc;
  --brand2:#18c8ff;
  --brand3:#b388ff;
  --grad:linear-gradient(115deg,#6d5efc 0%,#9a6bff 42%,#18c8ff 100%);
  --grad-soft:linear-gradient(135deg,#eee9ff 0%,#e6f7ff 100%);
  --shadow-sm:0 1px 2px rgba(0,0,0,.05),0 4px 14px -8px rgba(0,0,0,.18);
  --shadow-md:0 18px 50px -22px rgba(79,70,229,.45);
  --shadow-lg:0 40px 90px -30px rgba(6,8,15,.40);
  --radius:22px;
  --radius-lg:30px;
  --maxw:1180px;
  --ease:cubic-bezier(.16,.84,.34,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:'Sora','Inter',sans-serif;letter-spacing:-.02em;line-height:1.08;color:var(--ink)}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  padding:13px 24px;border-radius:980px;border:0;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-md)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 56px -18px rgba(79,70,229,.6)}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-light:hover{transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand1);color:var(--brand1)}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s,backdrop-filter .3s,border-color .3s}
.nav.scrolled{background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-family:'Sora';font-weight:800;font-size:19px;color:var(--ink)}
.logo .mark{width:30px;height:30px;border-radius:9px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:16px;box-shadow:var(--shadow-md)}
.nav-links{display:flex;gap:30px;font-size:14.5px;font-weight:500;color:var(--muted)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{display:flex;gap:14px;align-items:center}
.nav-cta .link{font-size:14.5px;font-weight:500;color:var(--muted)}
.nav-cta .link:hover{color:var(--ink)}
.burger{display:none;flex-direction:column;gap:5px;width:42px;height:42px;border:0;background:transparent;cursor:pointer;align-items:center;justify-content:center}
.burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Mobile drawer ---------- */
.drawer{position:fixed;top:0;right:0;height:100dvh;width:min(84vw,360px);background:rgba(255,255,255,.96);backdrop-filter:blur(20px);
  z-index:70;transform:translateX(100%);transition:transform .4s var(--ease);padding:84px 26px 30px;box-shadow:-30px 0 80px -30px rgba(0,0,0,.3)}
.drawer.open{transform:none}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{padding:14px 6px;font-size:18px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-links a.btn{margin-top:18px;justify-content:center;border-bottom:0}
.drawer-scrim{position:fixed;inset:0;background:rgba(6,8,15,.35);z-index:65;opacity:0;pointer-events:none;transition:opacity .3s}
.drawer-scrim.open{opacity:1;pointer-events:auto}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;padding:150px 0 84px;overflow:hidden;isolation:isolate}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;z-index:-1}
.hero::before{width:540px;height:540px;background:radial-gradient(circle,#6d5efc,transparent 65%);top:-160px;left:-120px}
.hero::after{width:520px;height:520px;background:radial-gradient(circle,#18c8ff,transparent 65%);bottom:-200px;right:-120px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.08);border:1px solid var(--line-light);
  padding:8px 15px;border-radius:980px;font-size:13px;font-weight:500;color:#dcdce4;margin-bottom:22px}
.badge .dot{width:8px;height:8px;border-radius:50%;background:#37e0a0;box-shadow:0 0 0 4px rgba(55,224,160,.25)}
.hero h1{font-size:clamp(38px,6vw,76px);font-weight:800;color:#fff;margin-bottom:20px}
.hero h1 .grad-text{background:linear-gradient(115deg,#b388ff,#18c8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(16px,2vw,19px);color:#b9bccb;max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-note{margin-top:20px;font-size:13px;color:#7e8294}
.hero .btn-light{color:var(--ink)}

/* Hero visual — glass dashboard card */
.hero-visual{position:relative}
.glass{background:linear-gradient(160deg,rgba(255,255,255,.14),rgba(255,255,255,.04));border:1px solid var(--line-light);
  border-radius:var(--radius-lg);backdrop-filter:blur(14px);box-shadow:var(--shadow-lg);padding:18px;transform:perspective(1200px) rotateY(-7deg) rotateX(3deg);transition:transform .5s var(--ease)}
.glass:hover{transform:perspective(1200px) rotateY(-3deg) rotateX(1deg)}
.glass-bar{display:flex;gap:7px;margin-bottom:16px}
.glass-bar i{width:10px;height:10px;border-radius:50%;background:#3a3f52;display:inline-block}
.glass-bar i:nth-child(1){background:#ff5f57}.glass-bar i:nth-child(2){background:#febc2e}.glass-bar i:nth-child(3){background:#28c840}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
.kpi{background:rgba(255,255,255,.06);border:1px solid var(--line-light);border-radius:14px;padding:12px}
.kpi b{display:block;font-family:'Sora';font-size:19px;color:#fff}
.kpi span{font-size:11px;color:#9aa0b4}
.chart{background:rgba(255,255,255,.05);border:1px solid var(--line-light);border-radius:14px;padding:14px}
.chart .ttl{font-size:12px;font-weight:600;color:#c9ccda;margin-bottom:8px;display:flex;justify-content:space-between;align-items:center}
.chip-ai{background:var(--grad);color:#fff;font-size:10px;padding:3px 9px;border-radius:980px;font-weight:700}
.float-badge{position:absolute;right:-14px;bottom:-18px;background:#fff;color:var(--ink);border-radius:16px;padding:12px 16px;
  box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;font-weight:600;font-size:13px}
.float-badge .ring{width:34px;height:34px;border-radius:50%;background:conic-gradient(#37e0a0 0 78%, #e6e6ee 0);display:grid;place-items:center}
.float-badge .ring::after{content:"";width:24px;height:24px;border-radius:50%;background:#fff}

/* ---------- Trust strip ---------- */
.trust{padding:34px 0;border-bottom:1px solid var(--line);background:var(--paper)}
.trust .label{text-align:center;font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2);margin-bottom:18px}
.logos{display:flex;flex-wrap:wrap;justify-content:center;gap:38px 46px;align-items:center}
.logos span{font-family:'Sora';font-weight:700;font-size:18px;color:#b3b6c2;letter-spacing:-.01em;transition:color .2s}
.logos span:hover{color:var(--ink)}

/* ---------- Section scaffold ---------- */
.section{padding:104px 0}
.section.alt{background:var(--paper)}
.sec-head{max-width:720px;margin:0 auto 56px;text-align:center}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand1)}
.sec-head h2{font-size:clamp(28px,4vw,46px);margin:12px 0 14px}
.sec-head p{color:var(--muted);font-size:17px;max-width:620px;margin:0 auto}

/* ---------- Bento features ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:18px;grid-auto-flow:dense}
.feat{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .35s var(--ease),box-shadow .35s var(--ease);box-shadow:var(--shadow-sm)}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.feat.sm{grid-column:span 1;grid-row:span 1}
.feat.lg{grid-column:span 2;grid-row:span 2}
.feat .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;color:var(--brand1);background:var(--grad-soft);margin-bottom:16px;flex:0 0 auto}
.feat .ic svg{width:24px;height:24px}
.feat h3{font-size:19px;margin-bottom:8px}
.feat p{font-size:14.5px;color:var(--muted)}
.feat.lg h3{font-size:24px}
.feat.lg p{font-size:16px;max-width:42ch}
.feat.tone-grad{background:var(--grad);color:#fff;border:0}
.feat.tone-grad .ic{background:rgba(255,255,255,.18);color:#fff}
.feat.tone-grad h3,.feat.tone-grad p{color:#fff}
.feat.tone-grad p{color:rgba(255,255,255,.86)}
.feat.tone-ink{background:var(--ink);color:#fff;border:0}
.feat.tone-ink .ic{background:rgba(255,255,255,.12);color:#fff}
.feat.tone-ink h3,.feat.tone-ink p{color:#fff}
.feat.tone-ink p{color:#b9bccb}

/* ---------- Modules ---------- */
.mod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mod{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;gap:13px;align-items:flex-start;transition:transform .3s var(--ease),border-color .3s}
.mod:hover{transform:translateY(-3px);border-color:var(--brand1);background:var(--paper)}
.mod .e{font-size:22px;line-height:1;flex:0 0 auto}
.mod b{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.mod span{font-size:12.5px;color:var(--muted)}

/* ---------- Engine split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.engine-list{display:grid;gap:18px}
.engine-item{display:flex;gap:16px;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow-sm)}
.engine-item .ic{width:42px;height:42px;border-radius:12px;background:var(--grad-soft);color:var(--brand1);display:grid;place-items:center;flex:0 0 auto}
.engine-item h3{font-size:17px;margin-bottom:5px}
.engine-item p{font-size:14px;color:var(--muted)}
.engine-visual{position:relative;background:var(--ink);border-radius:var(--radius-lg);padding:26px;color:#fff;box-shadow:var(--shadow-lg);overflow:hidden}
.engine-visual .q{font-family:'Sora';font-size:18px;font-weight:600;margin-bottom:16px;line-height:1.4}
.engine-visual .q .grad-text{background:linear-gradient(115deg,#b388ff,#18c8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.engine-visual .answer{font-size:14px;color:#c9ccda;background:rgba(255,255,255,.06);border:1px solid var(--line-light);border-radius:14px;padding:16px}
.engine-visual .answer .tag{display:inline-block;font-size:11px;background:var(--grad);padding:3px 9px;border-radius:980px;margin-bottom:10px;font-weight:700}
.engine-visual .dots{position:absolute;inset:auto -30px -40px auto;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,#6d5efc,transparent 65%);filter:blur(40px);opacity:.6}

/* ---------- Stats ---------- */
.stats{background:var(--ink);color:#fff;padding:70px 0}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.stat b{font-family:'Sora';font-size:clamp(34px,5vw,52px);display:block;background:linear-gradient(115deg,#b388ff,#18c8ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:14.5px;color:#c9ccda;display:block}
.stat small{font-size:12.5px;color:#7e8294}

/* ---------- Services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .3s var(--ease),box-shadow .3s}
.svc:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.svc .top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.svc .num{width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;display:grid;place-items:center;font-family:'Sora';font-weight:800;flex:0 0 auto}
.svc .ic{color:var(--brand1)}
.svc h3{font-size:18px}
.svc p{font-size:14.5px;color:var(--muted)}

/* ---------- Testimonials ---------- */
.t-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.t-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.t-card .stars{color:#f5b400;font-size:15px;margin-bottom:14px;letter-spacing:2px}
.t-card blockquote{font-size:15.5px;color:var(--text);flex:1;line-height:1.55}
.t-card .who{margin-top:20px;display:flex;align-items:center;gap:12px}
.t-card .av{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-family:'Sora'}
.t-card .who b{display:block;font-size:14.5px;color:var(--ink)}
.t-card .who span{font-size:13px;color:var(--muted)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;counter-reset:s}
.step{position:relative;padding-top:8px}
.step .n{width:46px;height:46px;border-radius:50%;background:var(--grad-soft);border:1px solid var(--line);display:grid;place-items:center;
  font-family:'Sora';font-weight:800;color:var(--brand1);margin-bottom:16px;font-size:18px}
.step h3{font-size:20px;margin-bottom:7px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- Pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);position:relative}
.plan.feat-plan{border:2px solid transparent;background:linear-gradient(var(--paper),var(--paper)) padding-box,var(--grad) border-box;box-shadow:var(--shadow-md);transform:translateY(-8px)}
.plan .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 14px;border-radius:980px;white-space:nowrap}
.plan h3{font-size:21px}
.plan .price-n{font-family:'Sora';font-size:42px;color:var(--ink);margin:8px 0 2px;display:flex;align-items:baseline;gap:4px}
.plan .price-n small{font-size:15px;color:var(--muted);font-weight:500}
.plan .desc{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.plan ul{list-style:none;display:flex;flex-direction:column;gap:12px;margin-bottom:26px;flex:1}
.plan li{display:flex;gap:10px;font-size:14.5px;color:var(--text)}
.plan li svg{flex:0 0 auto;color:#1faa6b;width:18px;height:18px;margin-top:3px}
.plan .btn{justify-content:center}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 22px;background:transparent;border:0;cursor:pointer;
  font-family:'Sora';font-size:16.5px;font-weight:600;color:var(--ink);text-align:left}
.faq-q .pm{flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--bg-2);display:grid;place-items:center;transition:transform .3s,background .3s;font-size:18px;color:var(--brand1)}
.faq-item.open .faq-q .pm{transform:rotate(45deg);background:var(--grad);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:14.5px}

/* ---------- Demo / CTA ---------- */
.demo{background:var(--ink);color:#fff;padding:96px 0;text-align:center;position:relative;overflow:hidden;isolation:isolate}
.demo::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,#6d5efc,transparent 65%);filter:blur(70px);top:-180px;left:50%;transform:translateX(-50%);opacity:.5;z-index:-1}
.demo h2{color:#fff;font-size:clamp(28px,4vw,46px);margin-bottom:14px}
.demo p{color:#c9ccda;max-width:560px;margin:0 auto 34px;font-size:17px}
.form{max-width:560px;margin:0 auto;background:rgba(255,255,255,.06);border:1px solid var(--line-light);border-radius:var(--radius-lg);padding:26px;text-align:left;backdrop-filter:blur(12px)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:#b9bccb;margin-bottom:7px;font-weight:500}
.field input,.field textarea{width:100%;background:rgba(255,255,255,.08);border:1px solid var(--line-light);border-radius:12px;padding:13px 14px;color:#fff;font-size:14.5px;font-family:inherit;outline:none;transition:border-color .2s}
.field input::placeholder,.field textarea::placeholder{color:#7e8294}
.field input:focus,.field textarea:focus{border-color:var(--brand2)}
.form .btn{width:100%;justify-content:center;margin-top:6px}
.form .ok{display:none;background:rgba(55,224,160,.14);border:1px solid rgba(55,224,160,.4);color:#9af5cf;padding:14px;border-radius:12px;text-align:center;font-size:14px;margin-bottom:14px}
.form .ok.show{display:block}

/* ---------- Footer ---------- */
.footer{background:#080b14;color:#9aa0b4;padding:64px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:40px}
.footer .logo{color:#fff}
.footer .word{color:#fff}
.foot-brand p{font-size:13.5px;max-width:320px;margin-top:14px;color:#7e8294}
.foot-social{display:flex;gap:12px;margin-top:18px}
.foot-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.06);border:1px solid var(--line-light);display:grid;place-items:center;color:#c9ccda;font-size:13px;transition:.2s}
.foot-social a:hover{background:var(--grad);color:#fff;border-color:transparent}
.footer h4{color:#e6e8ef;font-size:14px;margin-bottom:16px;font-family:'Inter';font-weight:700}
.footer a{color:#9aa0b4;font-size:13.5px;display:block;margin-bottom:10px;transition:color .2s}
.footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#6b7081}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:.8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:1000px){
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:190px}
  .feat.lg{grid-column:span 2;grid-row:span 2}
  .split{grid-template-columns:1fr;gap:36px}
  .mod-grid,.svc-grid,.t-grid,.steps,.plans{grid-template-columns:1fr 1fr}
  .stats .grid{grid-template-columns:1fr 1fr;gap:36px 20px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
  .hero{padding:124px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .glass{transform:none}
  .glass:hover{transform:none}
  .hero-visual{margin-top:6px}
  .section{padding:74px 0}
  .bento{grid-template-columns:1fr;grid-auto-rows:auto}
  .feat,.feat.lg{grid-column:auto;grid-row:auto}
  .feat.lg h3{font-size:21px}.feat.lg p{font-size:15px}
  .mod-grid,.svc-grid,.t-grid,.steps,.plans{grid-template-columns:1fr}
  .plan.feat-plan{transform:none}
  .stats .grid{grid-template-columns:1fr 1fr}
  .form .row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .trust .logos{gap:24px 30px}
}
@media(max-width:420px){
  .stats .grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}