/* TokeIA · diseño A · crema, tinta y coral */
:root{
  --max:1160px;--r:20px;
  --font-body:'Inter',system-ui,sans-serif;
  --font-display:'Fraunces',Georgia,'Times New Roman',serif;
  --bg:#faf7f2;--bg2:#f2ece2;--card:#ffffff;
  --ink:#1c1a17;--muted:#625c54;--line:rgba(28,26,23,.12);
  --coral:#d93f16;--coral-h:#ea5428;--coral-l:#ff8a5c;--peach:#ffe3d3;--lilac:#e8dfff;
  --dark:#1c1a17;--dark2:#26231f;--violet:#6d35d6;
  --shadow:0 18px 46px rgba(60,40,20,.10);--shadow-s:0 6px 20px rgba(60,40,20,.07);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
section{padding:104px 0;position:relative}
h1,h2,h3{font-family:var(--font-display);font-weight:500;letter-spacing:-.025em;line-height:1.08}
h4{font-family:var(--font-body);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(2.1rem,4.4vw,3.4rem);margin-bottom:18px}
.ico{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.eyebrow{display:inline-block;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--coral);font-weight:700;margin-bottom:16px}
.lead{color:var(--muted);font-size:1.15rem;max-width:640px}
.src{color:var(--muted);font-size:.78rem;margin-top:16px}
/* palabra destacada: serif cursiva coral */
.mark{font-style:italic;color:var(--coral);background:none;padding:0}

/* botones */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;border-radius:999px;font-weight:700;font-size:1rem;border:2px solid transparent;cursor:pointer;transition:.22s;font-family:var(--font-body);line-height:1.2}
.btn .ico{width:18px;height:18px;stroke-width:2.4;transition:.22s}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 24px rgba(217,63,22,.28)}
.btn-primary:hover{background:var(--coral-h);transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,63,22,.36)}
.btn-primary:hover .ico{transform:translateX(3px)}
.btn-ghost{color:var(--ink);border-color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--bg)}

/* encabezado */
header{position:fixed;inset:0 0 auto 0;z-index:50;backdrop-filter:blur(14px);background:rgba(250,247,242,.88);border-bottom:1px solid transparent;transition:.25s}
header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(60,40,20,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav img{height:34px;width:auto}
.nav ul{display:flex;gap:4px;list-style:none;font-size:.94rem;font-weight:500;color:var(--muted)}
.nav ul a{padding:8px 14px;border-radius:999px;transition:.2s}
.nav ul a:hover{color:var(--ink);background:var(--bg2)}
.nav ul a.active{color:var(--ink);background:var(--peach)}
.nav .btn{padding:11px 22px;font-size:.9rem}
.burger{display:none;background:none;border:0;color:var(--ink);font-size:1.6rem;cursor:pointer}

/* hero */
.hero{padding:156px 0 140px;overflow:hidden;background:
  radial-gradient(760px 460px at 88% 8%,#ffd9c6 0%,transparent 66%),
  radial-gradient(640px 420px at 6% 96%,var(--lilac) 0%,transparent 64%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:center;position:relative;z-index:1}
.hero-grid>*,.split>*,.contact-box>*{min-width:0}
.badge{display:inline-flex;gap:10px;align-items:center;padding:8px 16px 8px 12px;border:1px solid var(--line);border-radius:999px;font-size:.84rem;font-weight:600;background:rgba(255,255,255,.78);margin-bottom:26px}
.badge i{width:9px;height:9px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(217,63,22,.18);animation:pulse 2.4s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(217,63,22,0)}}
.hero h1{font-size:clamp(3rem,6.6vw,5.5rem);margin-bottom:24px;font-weight:500}
.hero .lead{margin-bottom:34px;font-size:1.22rem}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{display:flex;align-items:center;gap:12px;margin-top:32px;color:var(--muted);font-size:.9rem;font-weight:500}
.hero-trust .ico{color:var(--coral);width:22px;height:22px}

/* conversación de ejemplo */
.hero-media{position:relative;display:flex;justify-content:center}
.chat{width:100%;max-width:420px;background:#efe7dd;border-radius:28px;overflow:hidden;box-shadow:0 34px 70px rgba(60,40,20,.25);border:1px solid rgba(28,26,23,.08);position:relative;z-index:1}
.chat-head{display:flex;align-items:center;gap:12px;background:var(--dark);color:#faf7f2;padding:16px 20px}
.chat-head .av{width:40px;height:40px;border-radius:50%;background:var(--coral);display:grid;place-items:center;font-family:var(--font-display);font-weight:600;font-size:1.2rem}
.chat-head b{display:block;font-size:.98rem;line-height:1.2}
.chat-head small{color:rgba(250,247,242,.7);font-size:.76rem}
.chat-body{padding:20px 16px 8px;display:grid;gap:10px;min-height:360px;align-content:start}
.msg{max-width:84%;padding:10px 14px;border-radius:16px;font-size:.9rem;line-height:1.45;box-shadow:0 1px 1px rgba(0,0,0,.06);opacity:0;transform:translateY(8px);animation:pop .5s forwards}
.msg.in{background:#fff;border-top-left-radius:4px;justify-self:start}
.msg.out{background:var(--peach);border-top-right-radius:4px;justify-self:end}
.msg:nth-child(1){animation-delay:.4s}.msg:nth-child(2){animation-delay:1.3s}.msg:nth-child(3){animation-delay:2.3s}
.msg:nth-child(4){animation-delay:3.2s}.msg:nth-child(5){animation-delay:4.1s}.msg:nth-child(6){animation-delay:5s}
@keyframes pop{to{opacity:1;transform:none}}
.chat-foot{display:flex;align-items:center;gap:8px;margin:6px 14px 16px;padding:10px 14px;background:#fff;border-radius:12px;font-size:.78rem;font-weight:600;color:var(--ink);border:1px dashed rgba(217,63,22,.45)}
.chat-foot .ico{width:16px;height:16px;color:var(--coral)}
.chat-note{position:absolute;left:50%;bottom:-34px;transform:translateX(-50%);font-size:.74rem;color:var(--muted);white-space:nowrap}
.float{position:absolute;z-index:2;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 18px;font-size:.82rem;box-shadow:0 14px 34px rgba(60,40,20,.16);animation:bob 5s ease-in-out infinite}
.float b{display:block;font-family:var(--font-display);font-weight:600;font-size:1.15rem;color:var(--coral)}
.float.a{display:none}.float.b{right:-30px;top:-22px;animation-delay:-2.5s}
@keyframes bob{50%{transform:translateY(-10px)}}

/* franja de tecnologías */
.marquee{background:var(--bg2);border-block:1px solid var(--line);padding:18px 0;overflow:hidden}
.marquee-track{display:flex;gap:48px;width:max-content;animation:slide 40s linear infinite}
.marquee span{font-family:var(--font-display);font-weight:500;font-size:1.05rem;color:var(--muted);white-space:nowrap;display:inline-flex;align-items:center;gap:48px}
.marquee span::after{content:"✦";color:var(--coral);font-size:.8rem}
@keyframes slide{to{transform:translateX(-50%)}}

/* cifras */
.stats{padding:0 0 56px;margin-top:-84px;position:relative;z-index:5}
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.stat{padding:30px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{font-family:var(--font-display);font-size:3rem;font-weight:500;display:block;color:var(--coral);line-height:1.05;letter-spacing:-.03em}
.stat span{color:var(--muted);font-size:.9rem;display:block;margin-top:6px}

/* cuerpo */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.big{font-family:var(--font-display);font-weight:500;letter-spacing:-.03em;font-size:clamp(2.3rem,5vw,3.9rem);line-height:1.05}
.bullets{display:grid;gap:14px;margin-top:26px}
.bullets div{padding:18px 22px;border-left:4px solid var(--coral);background:var(--card);border-radius:0 16px 16px 0;box-shadow:var(--shadow-s)}
.alt{background:var(--bg2)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-s);padding:34px 30px;transition:.28s;position:relative}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.card-ico{width:56px;height:56px;border-radius:16px;background:var(--peach);color:var(--coral);display:grid;place-items:center;margin-bottom:20px}
.card-ico .ico{width:28px;height:28px}
.card .num{font-size:.78rem;color:var(--coral);font-weight:800;letter-spacing:.14em}
.card h3{font-size:1.75rem;margin:8px 0 6px}
.card .tag{color:var(--ink);font-weight:700;margin-bottom:16px;font-size:.96rem}
.card p{color:var(--muted);font-size:.96rem}
.card ul{list-style:none;padding:0;margin-top:18px;display:grid;gap:11px;font-size:.93rem}
.card li{padding-left:26px;position:relative}
.card li::before{content:"";position:absolute;left:0;top:.35em;width:16px;height:16px;border-radius:50%;background:var(--peach) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.3l2.3 2.3 4.7-4.9' fill='none' stroke='%23d93f16' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat}
.card .stack{margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:.78rem;color:var(--muted)}

.chain{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:18px;align-items:center;margin-top:52px}
.node{border:1px solid var(--line);box-shadow:var(--shadow-s);border-radius:var(--r);padding:28px 24px;background:var(--card);text-align:center}
.node .card-ico{margin:0 auto 14px}
.node small{color:var(--coral);font-weight:800;letter-spacing:.12em;font-size:.74rem}
.node h3{margin:8px 0 6px;font-size:1.45rem}
.node p{color:var(--muted);font-size:.92rem}
.arrow{width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center}
.arrow .ico{width:22px;height:22px;stroke-width:2.6}
.result{margin-top:30px;text-align:center;color:var(--muted);font-weight:500}

/* franja oscura (evidencia) */
#evidencia{background:radial-gradient(620px 380px at 92% 0%,rgba(217,63,22,.28),transparent 70%),radial-gradient(520px 340px at 0% 100%,rgba(109,53,214,.22),transparent 70%),var(--dark);color:#f3eee6;overflow:hidden}
#evidencia h2{color:#fff}
#evidencia .eyebrow{color:var(--coral-l)}
#evidencia .lead,#evidencia .src{color:rgba(243,238,230,.76)}
#evidencia .mark{color:var(--coral-l)}
#evidencia .card{background:var(--dark2);border:1px solid rgba(255,255,255,.1);box-shadow:none;color:#f3eee6}
#evidencia .card p{color:rgba(243,238,230,.8)}
#evidencia .card .num{color:var(--coral-l)}
#evidencia .card h3{color:#fff;font-size:3.2rem;margin:8px 0 12px}

.chips{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:48px}
.chip{padding:26px 22px;border:1px solid var(--line);box-shadow:var(--shadow-s);border-radius:var(--r);background:var(--card);transition:.25s}
.chip:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.chip .card-ico{width:48px;height:48px;border-radius:14px;margin-bottom:14px}
.chip h4{font-size:1.1rem;margin-bottom:4px}
.chip em{font-style:normal;color:var(--coral);font-size:.84rem;font-weight:700;display:block;margin-bottom:10px}
.chip p{color:var(--muted);font-size:.86rem}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:52px;counter-reset:s}
.step{padding:30px 24px;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow-s);border:1px solid var(--line);position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--font-display);font-style:italic;font-size:2.8rem;font-weight:500;color:var(--coral);display:block;line-height:1;margin-bottom:14px}
.step h4{font-size:1.2rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.9rem}
.start{margin-top:36px;display:flex;gap:12px;flex-wrap:wrap}
.start span{padding:10px 18px;border:1px solid var(--line);border-radius:999px;font-size:.88rem;font-weight:600;background:#fff}
.start span::before{content:"✓ ";color:var(--coral);font-weight:800}

.proof-img{position:relative}
.proof-img::before{content:"";position:absolute;inset:6% -4% -4% 10%;background:var(--peach);border-radius:34px}
.proof-img img{position:relative;border-radius:28px;box-shadow:0 30px 70px rgba(60,40,20,.28);margin:0 auto;max-height:640px;width:auto}
.list3{display:grid;gap:20px;margin-top:30px}
.list3 div{display:flex;gap:16px}
.list3 i{flex:none;width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-weight:500;font-style:italic;font-family:var(--font-display);font-size:1.2rem}
.list3 h4{font-size:1.08rem}
.list3 p{color:var(--muted);font-size:.93rem}

.tech{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.tech>div{padding:28px;border:1px solid var(--line);box-shadow:var(--shadow-s);border-radius:var(--r);background:var(--card)}
.tech small{color:var(--coral);font-weight:800;letter-spacing:.12em;font-size:.74rem}
.tech h4{margin:6px 0 16px;font-size:1.15rem}
.pills{display:flex;flex-wrap:wrap;gap:8px}
.pills span{padding:7px 14px;border-radius:999px;background:var(--bg);border:1px solid var(--line);font-size:.8rem;font-weight:600}

/* contacto */
.contact{background:radial-gradient(640px 400px at 8% 100%,rgba(217,63,22,.32),transparent 70%),radial-gradient(520px 340px at 100% 0%,rgba(109,53,214,.24),transparent 70%),var(--dark);color:#f3eee6;overflow:hidden}
.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative}
.contact h2{color:#fff}
.contact .eyebrow{color:var(--coral-l)}
.contact .lead{color:rgba(243,238,230,.8)}
.contact .mark{color:var(--coral-l)}
.info{display:grid;gap:14px;margin-top:30px}
.info a{display:flex;gap:12px;align-items:center;color:#f3eee6;font-weight:500}
.info a:hover{color:var(--coral-l)}
.info .ico{width:20px;height:20px;color:var(--coral-l)}
.wa-card{background:var(--bg);color:var(--ink);border-radius:var(--r);padding:38px 34px;display:grid;gap:18px;box-shadow:0 30px 70px rgba(0,0,0,.4)}
.wa-card h3{font-size:1.8rem}
.wa-card p{color:var(--muted)}
.wa-steps{display:grid;gap:10px;padding-left:20px;font-size:.95rem}
.wa-card .btn{justify-content:center}
.wa-card .note{font-size:.8rem}

footer{padding:40px 0;background:#141210;color:rgba(243,238,230,.7);font-size:.88rem}
.foot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot img{height:28px;filter:brightness(0) invert(1)}
.foot nav{display:flex;gap:22px}
.foot a:hover{color:#fff}
.wa{position:fixed;right:20px;bottom:20px;z-index:60;width:58px;height:58px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 10px 30px rgba(37,211,102,.45);transition:.25s}
.wa:hover{transform:scale(1.08)}
.wa svg{width:30px;height:30px;fill:#fff}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.float,.badge i{animation:none}.marquee-track{animation:none}.msg{opacity:1;transform:none;animation:none}html{scroll-behavior:auto}}

@media(max-width:980px){
  .hero-grid,.split,.contact-box{grid-template-columns:1fr}
  .grid3,.tech{grid-template-columns:1fr}
  .chips,.steps,.stat-bar{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .chain{grid-template-columns:1fr}.arrow{margin:0 auto;transform:rotate(90deg)}
  .hero-media{max-width:430px;margin:0 auto 24px}.float{display:none}
  .nav ul{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px 20px 22px;gap:4px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px rgba(60,40,20,.08)}
  .nav ul.open{display:flex}.burger{display:block}.nav>.btn{display:none}
  section{padding:76px 0}.hero{padding:128px 0 126px}.stats{margin-top:-70px}
  .proof-img{max-width:420px;margin:0 auto}
}
@media(max-width:520px){
  .chips,.steps,.stat-bar{grid-template-columns:1fr}
  .stat{border-right:0!important;border-bottom:1px solid var(--line)}.stat:last-child{border-bottom:0}
  .hero h1{font-size:2.8rem}.cta-row .btn{width:100%;justify-content:center}
}