/* ============================================================
   SYNKFLOW — Landing v2.0
   Rediseño según brief: tema claro del sistema, contraste AA,
   narrativa problema->solución, mockup de interfaz en hero.
   Paleta: blanco #fff · gris SaaS #f8fafc · slate #000000/334155
   · acento naranja #f1511b (identidad, dosificado)
   ============================================================ */

:root{
  --bg:#ffffff;
  --bg-soft:#f8fafc;
  --surface:#ffffff;
  --border:#e2e8f0;
  --accent:#f1511b;
  --accent-hover:#cd4517;
  --text:#000000;
  --text-body:#334155;
  --muted:#475569;
  --radius:16px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Archivo','Segoe UI',sans-serif;
  background:var(--bg-soft);color:var(--text-body);line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
section[id]{scroll-margin-top:88px}

.container{max-width:1180px;margin:0 auto;padding:0 24px}
.i{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- HEADER: blanco, logo sobre pastilla oscura ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(0,0,0,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;position:relative}
.brand-logo{display:flex;align-items:center}
.brand-logo img{height:30px;width:auto}
.nav-links{display:flex;gap:28px}
.nav-links a{position:relative;color:rgba(255,255,255,.75);font-size:.92rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-links a::after{content:'';position:absolute;bottom:-6px;left:0;width:0;height:2px;background:var(--accent);transition:width .3s ease}
.nav-links a:hover::after{width:100%}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:inherit;font-weight:700;font-size:.95rem;
  border:none;border-radius:10px;cursor:pointer;
  padding:11px 22px;transition:all .2s;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 8px 24px rgba(241,81,27,.28)}
.btn-ghost{background:#fff;color:var(--text);border:1px solid #cbd5e1}
.header-actions .btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}
.header-actions .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:15px 30px;font-size:1.05rem;border-radius:12px}

/* ---------- PANEL LOGIN ---------- */
.login-panel{
  position:absolute;top:58px;right:0;width:min(360px,calc(100vw - 32px));
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:0 24px 64px rgba(15,23,42,.16);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s,transform .2s,visibility .2s;
}
.login-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.login-panel h3{font-size:1.12rem;margin-bottom:2px;color:var(--text)}
.login-panel .sub{color:var(--muted);font-size:.85rem;margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:.8rem;font-weight:600;color:var(--muted);margin-bottom:6px}
.field input{
  width:100%;padding:11px 13px;background:#fff;
  border:1px solid #cbd5e1;border-radius:10px;color:var(--text);
  font-family:inherit;font-size:.95rem;outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(241,81,27,.14)}
.login-panel .btn{width:100%;margin-top:6px}
.login-error{display:none;color:#dc2626;font-size:.85rem;text-align:center;margin-top:12px}
.login-error.show{display:block}
.login-backdrop{position:fixed;inset:0;z-index:99;display:none}
.login-backdrop.show{display:block}

/* ---------- HERO: foto + mockup de interfaz ---------- */
.hero{position:relative;padding:88px 0 96px;overflow:hidden;background:var(--bg-soft)}
.hero::before{
  content:'';position:absolute;top:-220px;right:-120px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(241,81,27,.07),transparent 65%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid rgba(241,81,27,.35);
  color:var(--accent);font-size:.8rem;font-weight:600;
  padding:7px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.12;font-weight:800;letter-spacing:-.02em;margin-bottom:20px;color:var(--text)}
.hero h1 .hl{color:var(--accent)}
.hero .lead{color:var(--muted);font-size:1.08rem;max-width:520px;margin-bottom:32px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.hero-points{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:.86rem}
.hero-points span{display:flex;align-items:center;gap:7px}
.hero-points .i{width:15px;height:15px;color:var(--accent)}

.hero-media{position:relative}
.hero-figure{
  border-radius:20px;overflow:hidden;border:1px solid var(--border);
  box-shadow:0 20px 48px rgba(15,23,42,.14);
  aspect-ratio:4/3;background:#e2e8f0;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
/* MOCKUP de interfaz SynkFlow superpuesto */
.mock-panel{
  position:absolute;bottom:-28px;left:-34px;width:290px;
  background:#fff;border:1px solid var(--border);border-radius:14px;
  box-shadow:0 16px 40px rgba(15,23,42,.18);padding:16px;
}
.mock-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.mock-title{font-size:.78rem;font-weight:700;color:var(--text)}
.mock-dot{width:8px;height:8px;border-radius:50%;background:#10b981}
.mock-kpis{display:flex;gap:10px;margin-bottom:12px}
.mock-kpi{flex:1;background:var(--bg-soft);border-radius:8px;padding:8px 10px}
.mock-kpi small{display:block;font-size:.6rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.mock-kpi b{font-size:.85rem;color:var(--text)}
.mock-kpi b.n{color:var(--accent)}
.mock-bar{height:7px;background:var(--bg-soft);border-radius:99px;overflow:hidden}
.mock-bar i{display:block;height:100%;width:68%;background:linear-gradient(90deg,var(--accent),#ff7a45);border-radius:99px}
.mock-bar-label{display:flex;justify-content:space-between;font-size:.62rem;color:var(--muted);margin-top:5px}

/* ---------- SECCIÓN PROBLEMA (psicología: reconocimiento) ---------- */
.problema{background:var(--bg-soft);padding:84px 0;border-top:1px solid var(--border)}
.dolores-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.dolor{
  background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;
  display:flex;gap:14px;align-items:flex-start;
}
.dolor .x{
  width:32px;height:32px;flex:none;border-radius:8px;
  background:#fef2f2;color:#dc2626;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;
}
.dolor p{color:var(--muted);font-size:.9rem}
.transicion{
  margin-top:48px;text-align:center;
  background:#000000;border-radius:18px;padding:36px 24px;
}
.transicion p{color:#cbd5e1;font-size:1.05rem}
.transicion b{color:#fff;font-size:1.2rem;display:block;margin-top:4px}

/* ---------- SECCIONES ---------- */
.section{padding:84px 0;background:var(--bg)}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.kicker{display:block;color:var(--accent);font-weight:700;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;letter-spacing:-.01em;margin-bottom:14px;color:var(--text)}
.section-head p{color:var(--muted)}

/* Plataforma conectada */
.flujo{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:40px}
.flujo-node{
  background:#fff;border:1px solid var(--border);border-radius:12px;
  padding:12px 20px;font-weight:700;font-size:.9rem;color:var(--text);
  box-shadow:0 2px 8px rgba(15,23,42,.05);
}
.flujo-sep{color:var(--accent);font-weight:800;font-size:1.1rem}
.flujo-note{text-align:center;color:var(--muted);font-size:.92rem;margin-top:24px;max-width:560px;margin-left:auto;margin-right:auto}

.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.feature:hover{transform:translateY(-4px);border-color:rgba(241,81,27,.45);box-shadow:0 16px 40px rgba(15,23,42,.1)}
.feature .icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(241,81,27,.09);color:var(--accent);margin-bottom:16px;
}
.feature h3{font-size:.98rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.feature p{color:var(--muted);font-size:.87rem}

/* Cómo funciona */
.pasos{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px}
.paso{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px;position:relative}
.paso-num{
  width:38px;height:38px;border-radius:50%;
  background:#000000;color:#fff;font-weight:800;font-size:.95rem;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.paso h3{font-size:.95rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.paso p{color:var(--muted);font-size:.85rem}

/* Split imagen+texto */
.split-section{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split .figure{
  border-radius:20px;overflow:hidden;border:1px solid var(--border);
  aspect-ratio:16/10;box-shadow:0 20px 48px rgba(15,23,42,.14);
}
.split .figure img{width:100%;height:100%;object-fit:cover}
.split h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;letter-spacing:-.01em;margin-bottom:14px;color:var(--text)}
.split p{color:var(--muted);margin-bottom:24px}
.check-list{list-style:none;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text-body);font-size:.95rem}
.check-list .i{width:18px;height:18px;color:var(--accent);flex:none;margin-top:4px}

/* Beneficios */
.beneficios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.beneficio{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;display:flex;gap:14px;align-items:center}
.beneficio .icon{width:38px;height:38px;flex:none;border-radius:10px;background:rgba(241,81,27,.09);color:var(--accent);display:flex;align-items:center;justify-content:center}
.beneficio .icon .i{width:19px;height:19px}
.beneficio p{font-weight:600;color:var(--text);font-size:.92rem}

/* Cierre */
.cierre{background:var(--bg-soft);padding:84px 0;border-top:1px solid var(--border)}
.cierre-card{
  text-align:center;background:#000000;border-radius:24px;padding:70px 32px;
}
.cierre-card h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;margin-bottom:14px;color:#fff}
.cierre-card p{color:#cbd5e1;max-width:560px;margin:0 auto 30px}

/* ---------- FOOTER ---------- */
.site-footer{background:#000000;padding:36px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center}
.footer-brand img{height:26px;width:auto}
.site-footer small{color:rgba(255,255,255,.55)}
.site-footer a{color:rgba(255,255,255,.75);transition:color .2s}
.site-footer a:hover{color:#fff}

/* ---------- RESPONSIVE ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media{max-width:560px}
  .mock-panel{left:8px;bottom:-24px}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .dolores-grid{grid-template-columns:1fr}
  .pasos{grid-template-columns:repeat(2,1fr)}
  .beneficios-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
}
@media (max-width:680px){
  .nav-links{display:none}
  .features-grid{grid-template-columns:1fr}
  .pasos{grid-template-columns:1fr}
  .beneficios-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .hero{padding:52px 0 60px}
  .cierre-card{padding:48px 20px}
  .flujo{gap:8px}
  .mock-panel{width:240px}
}

/* ===== v2.4 — FIGURA PLATAFORMA CONECTADA (oficina técnica) ===== */
.plataforma-figure{
  border-radius:20px;overflow:hidden;
  border:1px solid var(--border);
  box-shadow:0 20px 48px rgba(15,23,42,.14);
  margin:0 auto 40px;
  background:linear-gradient(135deg,var(--surface),var(--surface-2));
}
.plataforma-figure img{
  width:100%;display:block;
  max-height:480px;object-fit:cover;
}
.plataforma-figure figcaption{
  padding:14px 20px;
  font-size:.85rem;color:var(--muted);
  background:var(--surface);
  border-top:1px solid var(--border);
  text-align:center;
}
@media (max-width:680px){
  .plataforma-figure img{max-height:340px}
  .plataforma-figure{margin-bottom:28px}
}