/* ANTIDOTO [SL] — Studio Labs
   Fondo crema, tipografía espresso, acento bronce.
   Los contrastes están comprobados: bronce #8A5722 sobre crema = 5,24:1. */

:root{
  /* claros */
  --cream:#f3eee6;
  --card:#fbf8f3;
  --mocha:#e8ded0;
  --mocha-2:#ddd1c0;
  --hair:#e0d6c6;
  --hair-soft:#eae2d6;

  /* oscuros */
  --espresso:#221c16;
  --petrol:#16333b;
  --petrol-2:#0f272d;
  --warm-dim:#6b6058;
  --warm-dimmer:#8d8177;

  /* acento */
  --bronze:#8a5722;        /* sobre claro */
  --bronze-lt:#c89b6a;     /* sobre oscuro */
  --bronze-wash:#f0e4d4;

  /* claro sobre oscuro */
  --on-dark:#f3eee6;
  --on-dark-dim:#b9ac9d;

  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
  --mono:'Roboto Mono',ui-monospace,SFMono-Regular,Menlo,monospace;

  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --pill:999px;

  --gut:clamp(18px,4vw,44px);
  --maxw:1240px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;scroll-padding-top:110px;}

body{
  margin:0;
  background:var(--cream);
  color:var(--espresso);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
:focus-visible{outline:2px solid var(--bronze);outline-offset:3px;}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--espresso);color:var(--cream);
  padding:12px 18px;border-radius:var(--r-sm);
  font-family:var(--mono);font-size:.8rem;
}
.skip:focus{left:14px;top:14px;}

/* ---------- tipografía ---------- */

h1,h2,h3{margin:0;text-wrap:balance;}

h1{
  font-size:clamp(2.2rem,5.8vw,4.3rem);
  font-weight:800;letter-spacing:-.042em;line-height:1.04;
}
h1 em{font-style:normal;color:var(--bronze-lt);}

h2{
  font-size:clamp(1.7rem,3.6vw,2.7rem);
  font-weight:700;letter-spacing:-.032em;line-height:1.1;max-width:20ch;
}

h3{font-size:1.06rem;font-weight:600;letter-spacing:-.015em;line-height:1.3;}

p{margin:0;}

.label,.eyebrow{
  font-family:var(--mono);font-size:.72rem;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--bronze);margin:0;
}
.label.small{font-size:.66rem;}
.eyebrow{color:var(--bronze-lt);}

/* ---------- nav flotante ---------- */

#nav{
  position:fixed;top:14px;left:50%;transform:translateX(-50%);
  z-index:50;width:calc(100% - 2*var(--gut));max-width:var(--maxw);
  display:flex;align-items:center;gap:24px;
  padding:10px 12px 10px 20px;
  border-radius:var(--pill);
  background:rgba(251,248,243,.78);
  backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  border:1px solid rgba(224,214,198,.9);
  box-shadow:0 2px 12px rgba(34,28,22,.05);
  transition:box-shadow .3s ease,background .3s ease;
}
#nav.stuck{
  background:rgba(251,248,243,.94);
  box-shadow:0 6px 26px rgba(34,28,22,.1);
}

.logo{display:flex;flex-direction:column;gap:6px;margin-right:auto;}
.logo-t{
  font-size:1.14rem;font-weight:800;letter-spacing:-.05em;line-height:1;
  display:inline-flex;align-items:baseline;
}
.logo-t.small{font-size:1rem;}
.sl{font-family:var(--mono);font-size:.78em;font-weight:500;color:var(--bronze);letter-spacing:-.02em;}

.loadbar{display:block;width:96px;height:2px;background:var(--mocha-2);border-radius:2px;overflow:hidden;}
.loadbar i{
  display:block;height:100%;width:73%;background:var(--bronze);border-radius:2px;
  transform-origin:left;transform:scaleX(0);
  animation:load 1.2s cubic-bezier(.2,.8,.2,1) .25s forwards;
}
@keyframes load{to{transform:scaleX(1);}}

.navlinks{display:flex;gap:22px;list-style:none;margin:0;padding:0;}
.navlinks a{
  font-family:var(--mono);font-size:.75rem;letter-spacing:.05em;
  color:var(--warm-dim);transition:color .2s ease;
  display:inline-flex;gap:6px;align-items:baseline;
}
.navlinks a span{color:var(--warm-dimmer);transition:color .2s ease;}
.navlinks a:hover{color:var(--espresso);}
.navlinks a:hover span{color:var(--bronze);}

.nav-cta{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.05em;
  background:var(--espresso);color:var(--cream);
  padding:11px 20px;border-radius:var(--pill);
  transition:background .2s ease;white-space:nowrap;
}
.nav-cta:hover{background:var(--petrol);}

/* ---------- hero: tarjeta oscura sobre crema ---------- */

.hero{
  position:relative;
  margin:calc(72px + 14px) var(--gut) 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--espresso);
  min-height:min(82vh,760px);
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:clamp(32px,6vw,76px);
  isolation:isolate;
}

.hero-img{position:absolute;inset:0;z-index:-1;}
.hero-img img{width:100%;height:100%;object-fit:cover;opacity:.78;}

.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(20,16,12,.94) 0%,rgba(20,16,12,.7) 46%,rgba(20,16,12,.15) 100%),
    linear-gradient(0deg,rgba(20,16,12,.86) 0%,rgba(20,16,12,0) 52%);
}

.hero-spot{
  position:absolute;width:520px;height:520px;margin:-260px 0 0 -260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(200,155,106,.16) 0%,rgba(200,155,106,0) 68%);
  opacity:0;transition:opacity .5s ease;pointer-events:none;
}
.hero-spot.on{opacity:1;}

.hero-body{
  position:relative;max-width:min(900px,100%);
  display:flex;flex-direction:column;gap:24px;
  color:var(--on-dark);
  animation:rise .9s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes rise{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:none;}}

.lede{font-size:clamp(1rem,1.5vw,1.14rem);color:var(--on-dark-dim);max-width:54ch;}

.hero-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:4px;}

.btn{
  display:inline-block;cursor:pointer;
  font-family:var(--mono);font-size:.79rem;letter-spacing:.06em;
  background:var(--bronze-lt);color:#22160a;
  padding:15px 26px;border:1px solid var(--bronze-lt);border-radius:var(--pill);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:hover{background:#dcb287;border-color:#dcb287;transform:translateY(-1px);}
.btn.ghost{background:transparent;color:var(--on-dark);border-color:rgba(243,238,230,.32);}
.btn.ghost:hover{border-color:var(--on-dark);background:rgba(243,238,230,.08);}

/* botón sobre fondo claro */
.form .btn{background:var(--espresso);border-color:var(--espresso);color:var(--cream);}
.form .btn:hover{background:var(--petrol);border-color:var(--petrol);}

.scrollcue{display:none;}

/* ---------- secciones ---------- */

.sec{
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(72px,10vw,132px) var(--gut);
  display:flex;flex-direction:column;gap:clamp(34px,4.6vw,56px);
}
.sec + .sec{border-top:1px solid var(--hair-soft);}

.sec-head{display:flex;flex-direction:column;gap:15px;}
.sec-lede{color:var(--warm-dim);max-width:64ch;font-size:1.02rem;}

/* ---------- [01] diagnóstico ---------- */

.diag{
  display:grid;gap:clamp(24px,3.4vw,48px);
  grid-template-columns:1.1fr .9fr;align-items:start;
}

.flow{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.flow li{
  display:grid;grid-template-columns:76px 1fr;gap:18px;
  padding:20px 22px;
  background:var(--card);
  border:1px solid var(--hair);
  border-radius:var(--r);
}
.flow .n{
  grid-column:1;grid-row:1 / span 2;
  font-family:var(--mono);font-size:.71rem;letter-spacing:.08em;
  color:var(--bronze);padding-top:3px;
}
.flow h3{grid-column:2;grid-row:1;margin-bottom:4px;}
.flow p{grid-column:2;grid-row:2;color:var(--warm-dim);font-size:.94rem;}

.form{
  background:var(--petrol);
  border-radius:var(--r-lg);
  padding:clamp(24px,3vw,34px);
  display:flex;flex-direction:column;gap:15px;
  position:sticky;top:104px;
  color:var(--on-dark);
}
.form-k{
  font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--bronze-lt);
}
.form label{display:flex;flex-direction:column;gap:6px;}
.form label span{font-size:.83rem;color:var(--on-dark-dim);}
.form input,.form select{
  font-family:var(--sans);font-size:.95rem;width:100%;
  background:rgba(243,238,230,.06);color:var(--on-dark);
  border:1px solid rgba(243,238,230,.2);
  border-radius:var(--r-sm);padding:13px 15px;
  transition:border-color .2s ease,background .2s ease;
}
.form input::placeholder{color:rgba(185,172,157,.7);}
.form input:focus,.form select:focus{
  border-color:var(--bronze-lt);background:rgba(243,238,230,.1);outline:none;
}
.form input.err,.form select.err{border-color:#e0866b;}
.form select option{background:var(--petrol-2);color:var(--on-dark);}
.form .btn{width:100%;margin-top:4px;background:var(--bronze-lt);border-color:var(--bronze-lt);color:#22160a;}
.form .btn:hover{background:#dcb287;border-color:#dcb287;}
.form label em{font-style:normal;color:var(--warm-dimmer);}
.oculto{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

.check{
  flex-direction:row!important;align-items:flex-start;gap:11px!important;
  cursor:pointer;margin-top:2px;
}
.check input{
  appearance:none;-webkit-appearance:none;
  width:19px;height:19px;flex:none;margin-top:2px;
  border:1px solid rgba(243,238,230,.34);border-radius:5px;
  background:rgba(243,238,230,.06);cursor:pointer;
  transition:background .18s ease,border-color .18s ease;
}
.check input:checked{background:var(--bronze-lt);border-color:var(--bronze-lt);}
.check input:checked::after{
  content:"";display:block;
  width:5px;height:9px;margin:2px auto 0;
  border:solid #22160a;border-width:0 2px 2px 0;transform:rotate(45deg);
}
.check input.err{border-color:#e0866b;}
.check span{font-size:.79rem!important;line-height:1.5;color:var(--on-dark-dim);}
.check a{color:var(--bronze-lt);border-bottom:1px solid rgba(200,155,106,.4);}

.form button:disabled{opacity:.55;cursor:wait;}

.form-note{font-size:.8rem;color:var(--on-dark-dim);line-height:1.5;}
.form-note a{color:var(--bronze-lt);border-bottom:1px solid rgba(200,155,106,.4);}
.form-note.ok{color:var(--bronze-lt);}

/* ---------- [02] packs ---------- */

.sec-sub{display:flex;flex-direction:column;gap:6px;margin-bottom:-16px;}
.sec-sub p:not(.label){color:var(--warm-dim);font-size:.95rem;max-width:60ch;}

.packs{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));}

.pack{
  background:var(--card);
  border:1px solid var(--hair);
  border-radius:var(--r-lg);
  padding:32px 28px;
  display:flex;flex-direction:column;gap:10px;
  position:relative;
  transition:box-shadow .28s ease,transform .28s ease;
}
.pack:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(34,28,22,.09);}

.pack.feat{
  background:var(--petrol);border-color:var(--petrol);color:var(--on-dark);
}
.pack.feat .pack-p{color:var(--on-dark-dim);}
.pack.feat .pack-p b{color:var(--on-dark);}
.pack.feat .pack-d,.pack.feat li{color:var(--on-dark-dim);}
.pack.feat .pack-i{color:var(--bronze-lt);}
.pack.feat ul{border-top-color:rgba(243,238,230,.16);}
.pack.feat li::before{background:var(--bronze-lt);}

.pack-i{font-family:var(--mono);font-size:.73rem;color:var(--bronze);letter-spacing:.04em;}
.pack-p{font-family:var(--mono);font-size:.9rem;color:var(--warm-dim);}
.pack-p b{
  font-size:1.7rem;color:var(--espresso);font-weight:600;
  display:inline-block;margin-top:2px;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.pack-p i{font-style:normal;font-size:.92rem;color:var(--warm-dim);letter-spacing:0;}
.pack-d{color:var(--warm-dim);font-size:.94rem;}
.pack ul{
  list-style:none;margin:8px 0 0;padding:16px 0 0;
  display:flex;flex-direction:column;gap:9px;
  border-top:1px solid var(--hair);
}
.pack li{font-size:.9rem;color:var(--warm-dim);padding-left:16px;position:relative;}
.pack li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:1px;background:var(--bronze);
}
.pack-tag{
  position:absolute;top:16px;right:20px;
  font-family:var(--mono);font-size:.6rem;letter-spacing:.13em;text-transform:uppercase;
  background:var(--bronze-lt);color:#22160a;
  padding:5px 11px;border-radius:var(--pill);
}

.avatar{
  background:var(--mocha);
  border-radius:var(--r-lg);
  padding:clamp(26px,3.4vw,38px);
  display:flex;flex-direction:column;gap:11px;
}
.avatar h3{font-size:1.2rem;max-width:32ch;}
.avatar p{color:#5c5148;font-size:.96rem;max-width:74ch;}
.avatar-note{color:#7d7166!important;font-size:.88rem!important;font-style:italic;}

/* ---------- [03] archivo ---------- */

.cases{display:grid;gap:clamp(18px,2.2vw,26px);grid-template-columns:repeat(auto-fit,minmax(300px,1fr));}

.case{margin:0;display:flex;flex-direction:column;gap:16px;}
.case-img{
  position:relative;overflow:hidden;
  border-radius:var(--r);
  background:var(--espresso);
  box-shadow:0 8px 26px rgba(34,28,22,.11);
}
.case-img img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  transition:transform .7s cubic-bezier(.2,.8,.2,1);
}
.case:hover .case-img img{transform:scale(1.04);}

.tag{
  position:absolute;left:12px;top:12px;
  font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;text-transform:uppercase;
  color:#22160a;background:rgba(243,238,230,.92);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  padding:6px 12px;border-radius:var(--pill);
}

.case figcaption{display:flex;flex-direction:column;gap:7px;}
.case-k{
  font-family:var(--mono);font-size:.67rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--bronze);
}
.case figcaption p:last-child{color:var(--warm-dim);font-size:.93rem;}

/* ---------- [04] contacto ---------- */

.contact{display:grid;gap:clamp(20px,3.4vw,48px);grid-template-columns:1fr 1fr;}

.people,.channels{list-style:none;margin:0;padding:0;}
.people{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));align-content:start;}
.people li{
  background:var(--card);border:1px solid var(--hair);
  border-radius:var(--r);padding:20px 22px;
}
.p-name{font-size:1.1rem;font-weight:600;letter-spacing:-.02em;}
.p-name[data-placeholder]{color:var(--warm-dimmer);font-style:italic;font-weight:400;}
.p-role{font-family:var(--mono);font-size:.71rem;letter-spacing:.1em;text-transform:uppercase;color:var(--bronze);margin-top:5px;}

.chan-wrap{display:flex;flex-direction:column;gap:14px;}

.wa{
  display:flex;align-items:center;gap:15px;
  background:#0f3f2e;
  border:1px solid #1c5c45;
  border-radius:var(--r);
  padding:19px 22px;
  color:#eaf5f0;
  transition:background .22s ease,transform .22s ease;
}
.wa:hover{background:#155039;transform:translateY(-2px);}
.wa svg{width:30px;height:30px;flex:none;fill:#5df2a5;}
.wa span{display:flex;flex-direction:column;gap:2px;}
.wa b{font-size:1rem;font-weight:600;letter-spacing:-.015em;}
.wa small{
  font-family:var(--mono);font-size:.71rem;letter-spacing:.02em;
  color:#8fc4ae;
}

.form-alt{
  font-size:.83rem;color:var(--on-dark-dim);
  border-top:1px solid rgba(243,238,230,.14);
  padding-top:13px;margin-top:2px;
}
.form-alt a{color:var(--bronze-lt);border-bottom:1px solid rgba(200,155,106,.4);}
.form-alt a:hover{border-bottom-color:var(--bronze-lt);}

.channels{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--hair);
  border-radius:var(--r);padding:6px 22px;
}
.channels li{
  display:grid;grid-template-columns:104px 1fr;gap:16px;
  padding:16px 0;border-bottom:1px solid var(--hair-soft);
}
.channels li:last-child{border-bottom:0;}
.c-k{font-family:var(--mono);font-size:.67rem;letter-spacing:.14em;text-transform:uppercase;color:var(--warm-dimmer);padding-top:3px;}
.channels a{color:var(--bronze);border-bottom:1px solid rgba(138,87,34,.3);transition:border-color .2s ease;}
.channels a:hover{border-bottom-color:var(--bronze);}
.c-v{color:var(--warm-dim);}

/* ---------- footer ---------- */

footer{
  max-width:var(--maxw);margin:0 auto;
  padding:34px var(--gut) 52px;
  border-top:1px solid var(--hair);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--warm-dimmer);
}
footer .logo-t{text-transform:none;letter-spacing:-.05em;color:var(--espresso);}
footer .sl-eq{color:var(--bronze);text-transform:none;}

/* ---------- reveal ---------- */

.rv{opacity:0;transform:translateY(20px);}
.rv.in{
  opacity:1;transform:none;
  transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1);
}

/* ---------- responsive ---------- */

@media (max-width:980px){
  .diag,.contact{grid-template-columns:1fr;}
  .form{position:static;}
  .navlinks{display:none;}
}

@media (max-width:560px){
  .flow li{grid-template-columns:1fr;gap:6px;padding:18px;}
  .flow .n,.flow h3,.flow p{grid-column:1;grid-row:auto;}
  .channels li{grid-template-columns:1fr;gap:2px;}
  .nav-cta{font-size:.68rem;padding:9px 14px;}
  .hero{min-height:74vh;border-radius:var(--r);}
  #nav{padding-left:16px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
  .rv{opacity:1;transform:none;}
  .loadbar i{transform:scaleX(1);}
}