/* ===== SPP® de TAINAR — Sistema de Presiembra Profunda =====
   Migración desde Landingi · sitio estático
   Paleta del original:
   --orange #E9540D  --peach #FCE5DB  --ink #2B2C2D  --brown #3D2416
   Tipografía: Mulish (sustituto de PF CentroSans del original) */

:root{
  --orange:#E9540D;
  --orange-dark:#c4440a;
  --peach:#FCE5DB;
  --ink:#1d1d1d;
  --ink-2:#2B2C2D;
  --brown:#3D2416;
  --muted:#56575A;
  --paper:#ffffff;
  --paper-2:#faf6f3;
  --line:#ece2dc;
  --maxw:1180px;
  --radius:14px;
  --shadow:0 16px 44px rgba(61,36,22,.14);
  --font:"Mulish",system-ui,-apple-system,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);border:0;}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;}

/* ---------- Buttons ---------- */
.btn{display:inline-block;font-family:var(--font);font-weight:800;font-size:.98rem;padding:15px 30px;border-radius:999px;cursor:pointer;border:2px solid transparent;transition:.2s ease;text-align:center;}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn-wsp{background:#25D366;color:#fff;}
.btn-wsp:hover{background:#1da851;transform:translateY(-2px);}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(43,44,45,.97);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;}
.brand img{height:38px;width:auto;}
.nav{display:flex;align-items:center;gap:30px;}
.nav a{font-weight:700;font-size:.96rem;color:#f3ece8;transition:color .2s;}
.nav a:hover{color:var(--orange);}
.nav .nav-cta{background:var(--orange);color:#fff;padding:9px 20px;border-radius:999px;}
.nav .nav-cta:hover{background:var(--orange-dark);color:#fff;}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{width:26px;height:2px;background:#fff;display:block;transition:.3s;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;padding:130px 0;min-height:74vh;display:flex;align-items:center;background:#2B2C2D url("assets/sembradora2.png") center/cover no-repeat;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(110deg,rgba(20,16,12,.8) 0%,rgba(30,22,16,.55) 55%,rgba(30,22,16,.25) 100%);}
.hero .container{max-width:none;padding:0 6vw;}
.hero-inner{position:relative;z-index:2;max-width:940px;}
.hero-eyebrow{font-weight:700;letter-spacing:.04em;font-size:1.05rem;color:var(--peach);margin:0 0 16px;}
.hero-title{font-family:var(--font);font-weight:900;font-size:clamp(2.3rem,5.6vw,4.2rem);line-height:1.04;margin:0 0 30px;}
.hero-title span{color:var(--orange);}
.hero-title sup{font-size:.42em;vertical-align:super;line-height:0;}

/* ---------- Section headers ---------- */
.section-eyebrow{font-weight:800;letter-spacing:.16em;text-transform:uppercase;font-size:.82rem;color:var(--orange);margin:0 0 12px;}
.section-eyebrow.light{color:var(--peach);}
.section-title{font-family:var(--font);font-weight:900;font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.1;margin:0 0 40px;color:var(--ink-2);}
.section-title.light{color:#fff;}

/* ---------- Origen ---------- */
.origin{padding:96px 0;background:var(--paper);}
.origin-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center;}
.origin-text p{font-size:1.1rem;color:var(--ink);margin:0 0 16px;}
.origin-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);object-fit:cover;}

/* ---------- El Sistema ---------- */
.system{padding:96px 0;background:var(--peach);}
.system-top{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center;margin-bottom:56px;}
.system-logo-col{display:flex;justify-content:center;}
.system-logo{width:100%;max-width:380px;height:auto;}
.system-diagram{position:relative;}
.system-diagram > img{width:100%;display:block;}
.callout{position:absolute;right:0;display:inline-flex;align-items:center;gap:9px;background:rgba(43,44,45,.94);color:#fff;font-weight:700;font-size:.9rem;padding:9px 15px;border-radius:999px;white-space:nowrap;box-shadow:0 8px 22px rgba(0,0,0,.28);opacity:0;transform:translateX(26px);transition:opacity .55s ease,transform .55s ease;}
.callout i{flex:none;width:11px;height:11px;border-radius:50%;background:var(--orange);animation:calloutPulse 2s infinite;}
.callout-1{top:14%;left:14%;right:auto;}
.callout-2{top:43%;}
.callout-3{top:70%;right:3%;}
.system-diagram.in .callout{opacity:1;transform:translateX(0);}
.system-diagram.in .callout-2{transition-delay:.18s;}
.system-diagram.in .callout-3{transition-delay:.36s;}
@keyframes calloutPulse{0%{box-shadow:0 0 0 0 rgba(233,84,13,.55)}70%{box-shadow:0 0 0 12px rgba(233,84,13,0)}100%{box-shadow:0 0 0 0 rgba(233,84,13,0)}}
@media (prefers-reduced-motion:reduce){.callout{opacity:1;transform:none;}.callout i{animation:none;}}
.system-features{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;}
.sys-feature h3{font-family:var(--font);font-weight:800;font-size:1.25rem;color:var(--ink-2);margin:0 0 12px;}
.sys-feature h3::before{content:"";display:block;width:38px;height:4px;background:var(--orange);border-radius:2px;margin-bottom:14px;}
.sys-feature p{color:var(--muted);margin:0 0 12px;font-size:.98rem;}
.feature-highlight{color:var(--orange)!important;font-weight:800;}

/* Cómo funciona (pasos) */
.howto{position:relative;}
.howto-num{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--orange);color:#fff;font-weight:900;font-size:1.35rem;margin-bottom:16px;}
.howto-name{font-family:var(--font);font-weight:900;font-size:clamp(1.5rem,2vw,1.8rem);color:var(--ink-2);line-height:1.14;margin:0 0 8px;}
.howto-head{font-weight:800;font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:var(--orange);line-height:1.3;margin:0 0 12px;}
.howto p{color:var(--muted);margin:0;font-size:.98rem;}
.howto-source{display:block;margin-top:8px;font-size:.82rem;color:#9a9a9a;font-style:italic;}
.system-cta{text-align:center;margin-top:44px;}

/* ---------- Beneficios ---------- */
.benefits{padding:96px 0;background:var(--ink-2);color:#fff;}
.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.benefit{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:32px 28px;position:relative;}
.benefit-num{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--orange);color:#fff;font-weight:900;font-size:1.3rem;margin-bottom:16px;}
.benefit h3{font-family:var(--font);font-weight:800;font-size:1.15rem;color:#fff;margin:0 0 12px;line-height:1.25;}
.benefit p{color:rgba(255,255,255,.78);margin:0;font-size:.97rem;}
.benefits-note{max-width:820px;margin:46px auto 0;text-align:center;}
.benefits-note p{color:rgba(255,255,255,.85);font-size:1.1rem;margin:0 0 14px;}
.benefits-note .btn{margin-top:20px;}

/* ---------- Testimonios ---------- */
.testimonials{padding:96px 0;background:var(--paper-2);}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.testimonial{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 28px;box-shadow:0 8px 24px rgba(61,36,22,.06);border-left:5px solid var(--orange);}
.tvideo{position:relative;cursor:pointer;border-radius:10px;overflow:hidden;margin-bottom:18px;aspect-ratio:16/9;background:#000;}
.tvideo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s;}
.tvideo:hover img{transform:scale(1.05);}
.tplay{position:absolute;inset:0;margin:auto;width:56px;height:56px;border-radius:50%;background:rgba(233,84,13,.94);box-shadow:0 6px 20px rgba(0,0,0,.35);transition:transform .25s;}
.tvideo:hover .tplay{transform:scale(1.1);}
.tplay::after{content:"";position:absolute;top:50%;left:54%;transform:translate(-50%,-50%);border-style:solid;border-width:10px 0 10px 17px;border-color:transparent transparent transparent #fff;}
.tvideo iframe{width:100%;height:100%;border:0;display:block;}
.testimonial .quote{font-size:1.08rem;color:var(--ink);font-style:italic;margin:0 0 18px;}
.testimonial .author{font-weight:800;color:var(--ink-2);margin:0;}
.testimonial .role{color:var(--muted);font-size:.9rem;margin:2px 0 0;}

/* ---------- Marcas ---------- */
.brands{padding:84px 0;background:var(--paper);}
.brands-inner{text-align:center;}
.brands-lead{max-width:680px;margin:0 auto 40px;color:var(--muted);font-size:1.08rem;}
.brands-logos{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:50px;}
.brands-logos img{max-height:80px;width:auto;filter:grayscale(1);opacity:.8;transition:.25s;}
.brands-logos img:hover{filter:none;opacity:1;}
.brands-photos{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.brands-photos img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);object-fit:cover;}

/* ---------- Contacto ---------- */
.contact{padding:96px 0;background:#3E2417;}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start;}
.contact-title{font-family:var(--font);font-weight:900;font-size:clamp(1.7rem,3.2vw,2.3rem);line-height:1.14;margin:0 0 18px;color:#fff;}
.contact-info p{color:rgba(255,255,255,.9);font-size:1.05rem;margin:0 0 14px;}
.btn-wsp{margin:6px 0 22px;}
.contact-block{border-top:1px solid rgba(255,255,255,.2);padding-top:18px;}
.contact-block p{margin:0 0 6px;}
.contact-block a{color:#fff;}
.contact-block a:hover{color:var(--orange);}
.contact-form-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);}
.form-intro{margin:10px 0 2px;color:var(--ink-2);font-size:1.02rem;}
.form-intro strong{display:block;}
.lead-form{display:flex;flex-direction:column;gap:14px;}
.lead-form input,.lead-form textarea{font-family:var(--font);font-size:1rem;padding:14px 16px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);transition:border-color .2s;width:100%;resize:vertical;}
.lead-form input:focus,.lead-form textarea:focus{outline:none;border-color:var(--orange);}
.form-msg{margin:4px 0 0;font-size:.95rem;font-weight:700;text-align:center;}
.form-msg.ok{color:var(--orange-dark);}
.form-msg.err{color:#c0392b;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-2);color:#fff;padding:38px 0;border-top:4px solid var(--orange);}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;}
.footer-logo{height:34px;width:auto;}
.footer-copy{margin:0;color:rgba(255,255,255,.6);font-size:.86rem;}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .nav{position:fixed;inset:74px 0 auto 0;flex-direction:column;background:var(--ink-2);gap:0;transform:translateY(-130%);transition:transform .3s;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.1);}
  .nav.open{transform:translateY(0);}
  .nav a{padding:14px 24px;width:100%;}
  .nav .nav-cta{margin:8px 24px;text-align:center;}
  .nav-toggle{display:flex;}
  .system-features,.benefits-grid{grid-template-columns:1fr;}
  .system-top{grid-template-columns:1fr;gap:30px;}
  .origin-inner,.contact-inner,.testimonials-grid{grid-template-columns:1fr;gap:32px;}
  .brands-photos{grid-template-columns:1fr;}
  .origin-media{order:-1;}
}
@media (max-width:560px){
  .hero{padding:96px 0;}
  .system-logo{max-width:240px;}
  .callout{font-size:.72rem;padding:6px 11px;gap:6px;max-width:64%;white-space:normal;}
  .origin,.system,.benefits,.testimonials,.brands,.contact{padding:60px 0;}
  .contact-form-wrap{padding:24px;}
  .brands-logos{gap:30px;}
}