/* =========================================================
   ESCUELA RURAL — Sistema de marca
   Nunito (display) · Inter (UI) · Azul marino + Amarillo
   ========================================================= */

:root{
  /* Marca */
  --navy:#2B3A8C;
  --navy-700:#1A2B6D;
  --navy-900:#0E1A4A;
  --ink:#141C2E;
  --blue-500:#5B72C4;
  --blue-300:#8E9DD8;
  --lavender:#C5CCED;
  --mist:#EEF1FA;
  --cyan:#C8E8F5;
  --green:#1A6B55;
  --green-bright:#43A047;
  --yellow:#F5C500;
  --red:#E53935;
  --paper:#F0F4F8;
  --white:#FFFFFF;

  /* Tipografía */
  --display:"Nunito",system-ui,sans-serif;
  --body:"Inter",system-ui,sans-serif;

  /* Espaciado base 8px */
  --xs:4px; --sm:8px; --md:16px; --lg:24px; --xl:48px; --xxl:64px;

  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;

  --shadow-sm:0 2px 8px rgba(20,28,46,.08);
  --shadow:0 14px 40px -12px rgba(20,28,46,.28);
  --shadow-lg:0 30px 70px -20px rgba(14,26,74,.45);

  --maxw:1200px;
  --nav-h:88px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}

h1,h2,h3,h4{font-family:var(--display);margin:0;line-height:1.08;letter-spacing:-.02em;font-weight:800;}
p{margin:0;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.eyebrow{
  font-family:var(--body);font-weight:700;font-size:.78rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--blue-500);
  display:inline-flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--yellow);border-radius:2px;}
.eyebrow.on-dark{color:var(--cyan);}

/* ============ Botones ============ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--body);font-weight:700;font-size:.98rem;
  padding:14px 26px;border-radius:var(--radius-pill);border:none;
  transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,background .25s;
  white-space:nowrap;
}
.btn .arrow{transition:transform .3s;}
.btn:hover .arrow{transform:translateX(5px);}
.btn-primary{background:var(--yellow);color:var(--navy-900);box-shadow:0 10px 24px -8px rgba(245,197,0,.7);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px -8px rgba(245,197,0,.85);}
.btn-navy{background:var(--navy);color:#fff;box-shadow:0 10px 24px -10px rgba(43,58,140,.8);}
.btn-navy:hover{transform:translateY(-3px);background:var(--navy-700);}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1.5px solid rgba(255,255,255,.28);}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-3px);}
.btn-outline{background:transparent;color:var(--navy);border:1.5px solid var(--lavender);}
.btn-outline:hover{border-color:var(--navy);transform:translateY(-3px);}

/* ============ Navegación ============ */
.nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;
  background:#fff;box-shadow:var(--shadow-sm);
}
.nav.scrolled{background:#fff;box-shadow:var(--shadow-sm);}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:24px;}
.nav-logo{height:68px;width:auto;}
.nav-logo.light{display:none;}
.nav-logo.dark{position:static;opacity:1;}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.nav-links a{
  font-weight:600;font-size:.95rem;padding:9px 16px;border-radius:var(--radius-pill);
  color:var(--navy-700);transition:background .2s,color .2s;position:relative;
}
.nav-links a:hover{background:var(--mist);}
.nav-links a.active{color:var(--navy-900);background:var(--yellow);}
.nav-cta{margin-left:8px;}
.nav-toggle{display:none;background:none;border:none;flex-direction:column;gap:5px;padding:8px;}
.nav-toggle span{width:24px;height:2.5px;background:var(--navy-700);border-radius:2px;transition:.3s;}

/* ============ Footer ============ */
.footer{background:var(--navy-900);color:#fff;padding:64px 0 32px;position:relative;overflow:hidden;}
.footer::before{content:"";position:absolute;inset:0;
  background:radial-gradient(700px 400px at 85% -10%,rgba(91,114,196,.4),transparent 60%);}
.footer-inner{position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;}
.footer-logo{height:60px;margin-bottom:18px;}
.footer p.tag{color:var(--lavender);max-width:34ch;font-size:.95rem;}
.footer h5{font-family:var(--body);text-transform:uppercase;letter-spacing:.12em;font-size:.74rem;
  color:var(--cyan);margin-bottom:16px;font-weight:700;}
.footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer ul a{color:var(--lavender);font-size:.95rem;transition:color .2s;}
.footer ul a:hover{color:#fff;}
.footer-bottom{position:relative;margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--blue-300);font-size:.84rem;}
.badge-offline{display:inline-flex;align-items:center;gap:8px;background:rgba(26,107,85,.25);
  border:1px solid rgba(67,160,71,.5);color:#9fe6b9;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:.78rem;font-weight:700;letter-spacing:.04em;}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--green-bright);
  box-shadow:0 0 0 0 rgba(67,160,71,.6);animation:pulse 2s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(67,160,71,.6);}70%{box-shadow:0 0 0 9px rgba(67,160,71,0);}100%{box-shadow:0 0 0 0 rgba(67,160,71,0);}}

/* ============ Reveal on scroll ============ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
.reveal[data-d="1"]{transition-delay:.08s;}
.reveal[data-d="2"]{transition-delay:.16s;}
.reveal[data-d="3"]{transition-delay:.24s;}
.reveal[data-d="4"]{transition-delay:.32s;}

/* ============ Secciones genéricas ============ */
section{position:relative;}
.section{padding:96px 0;}
.section-head{max-width:62ch;margin-bottom:48px;}
.section-head h2{font-size:clamp(2rem,4vw,3rem);color:var(--navy-900);margin:14px 0 16px;}
.section-head p{color:#52607a;font-size:1.1rem;}
.text-yellow{color:var(--yellow);}
.text-navy{color:var(--navy);}

/* ============ Tarjetas reutilizables ============ */
.card{background:#fff;border:1px solid var(--mist);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s,border-color .3s;}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--lavender);}

/* placeholder de imagen con identidad */
.ph{position:relative;border-radius:var(--radius);overflow:hidden;
  background:
    repeating-linear-gradient(135deg,rgba(43,58,140,.06) 0 12px,rgba(43,58,140,.02) 12px 24px),
    var(--mist);
  display:flex;align-items:flex-end;}
.ph::after{content:attr(data-label);font-family:var(--body);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--blue-500);background:#fff;border:1px solid var(--lavender);
  padding:5px 11px;border-radius:var(--radius-pill);margin:12px;font-weight:700;}

@media (max-width:900px){
  :root{--nav-h:70px;}
  .section{padding:64px 0;}
  .nav-links,.nav-cta{display:none;}
  .nav-links.open{display:flex;position:absolute;top:var(--nav-h);left:16px;right:16px;
    flex-direction:column;align-items:stretch;background:#fff;padding:14px;border-radius:18px;
    box-shadow:var(--shadow);gap:4px;}
  .nav-links.open a{color:var(--navy-700);}
  .nav-toggle{display:flex;}
  .footer-inner{grid-template-columns:1fr;gap:32px;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important;}
  *{animation-duration:.001s!important;}
}