/* ============================================================
   C.T.P. San Mateo — hoja de estilos
   Identidad visual: colegio técnico agropecuario, San Mateo, Alajuela
   ============================================================ */

:root{
  /* tierra / soil */
  --tierra-900:#241a10;
  --tierra-700:#5a4128;
  --tierra-500:#8a6a42;

  /* verde potrero / pasture green */
  --verde-900:#1c2b17;
  --verde-800:#243a1d;
  --verde-700:#345c29;
  --verde-600:#4c7a3c;
  --verde-400:#7fa668;
  --verde-200:#c7d9ba;

  /* amarillo maíz / corn */
  --maiz-600:#c98f1f;
  --maiz-500:#e3a93b;
  --maiz-300:#f2cd80;

  /* cielo, usado con moderación */
  --cielo-500:#5f89a8;

  /* fondos */
  --crema-100:#f4efdd;
  --crema-200:#ece3c8;
  --noche-950:#141d12;
  --noche-900:#1a2618;
  --noche-800:#223421;

  --tinta:#241a10;
  --tinta-suave:#4a3d2e;
  --borde:#d9cda5;

  --font-display:"Bitter", Georgia, serif;
  --font-body:"Work Sans", "Segoe UI", sans-serif;
  --font-mono:"IBM Plex Mono", monospace;

  --radius-sm:3px;
  --radius-md:6px;
  --shadow-card:0 1px 0 rgba(36,26,16,.12), 0 6px 16px -10px rgba(36,26,16,.35);
  --maxw:1120px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

body{
  margin:0;
  background:var(--crema-100);
  color:var(--tinta);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--tierra-900);
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h2{ font-size:clamp(1.9rem,3.4vw,2.7rem); font-weight:680; }
h3{ font-size:1.5rem; font-weight:700; }
h4{ font-size:1.15rem; font-weight:700; margin-bottom:.35em; }

p{ margin:0 0 1em; max-width:66ch; }
ul{ padding-left:1.2em; }

:focus-visible{ outline:3px solid var(--maiz-500); outline-offset:2px; }

/* ============================================================
   Franja de identidad (portada)
   ============================================================ */
.brand-bar{
  display:flex; align-items:center; gap:1.1rem;
  padding:1.4rem clamp(1.2rem,4vw,3rem);
  background:var(--verde-900);
  color:var(--crema-100);
  border-bottom:5px solid var(--maiz-500);
}
.brand-bar .crest{
  width:64px; height:64px; flex:0 0 auto;
  border-radius:50%;
  background:var(--maiz-500);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  border:2px solid var(--crema-100);
}
.brand-bar .crest img{ width:100%; height:100%; object-fit:cover; }
.brand-bar .eyebrow{ display:block; font-family:var(--font-mono); font-size:.78rem; color:var(--verde-200); margin-bottom:.15rem; }
.brand-bar h1{ color:var(--crema-100); font-size:clamp(1.5rem,3.2vw,2.1rem); margin:0; }
.brand-bar .tagline{ margin:.2rem 0 0; color:var(--maiz-300); font-family:var(--font-mono); font-size:.85rem; max-width:none; }

/* ============================================================
   Hero de portada (index)
   ============================================================ */
.hero-landing{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(ellipse 60% 90% at 85% -10%, rgba(227,169,59,.35), transparent 60%),
    linear-gradient(180deg, var(--crema-200), var(--crema-100) 55%);
  padding:clamp(3rem,7vw,5.5rem) clamp(1.2rem,4vw,3rem) clamp(4rem,8vw,6rem);
}
.hero-landing .sunburst{ position:absolute; top:-30px; right:-20px; width:220px; height:220px; }
.hero-landing .inner{ position:relative; max-width:640px; }
.hero-landing h2{ font-size:clamp(2.1rem,4.6vw,3.2rem); }
.hero-landing p{ font-size:1.1rem; color:var(--tinta-suave); }

.landing-strip{
  display:flex; flex-wrap:wrap; gap:.6rem 1.6rem;
  justify-content:center;
  margin:0; padding:1.1rem 1.5rem 2.6rem;
  font-family:var(--font-mono); font-size:.85rem; color:var(--tierra-700);
}

/* selector de sección */
.pick-wrap{
  max-width:var(--maxw); margin:-2.8rem auto 3.5rem; padding:0 clamp(1.2rem,4vw,2rem);
  display:flex; flex-wrap:wrap; gap:1.6rem; position:relative; z-index:2;
}
.pick-card{
  display:block; flex:1 1 320px;
  text-decoration:none; color:inherit;
  background:var(--crema-100);
  border:1px solid var(--borde);
  border-radius:var(--radius-md);
  padding:1.8rem 1.8rem 1.5rem;
  box-shadow:var(--shadow-card);
  position:relative;
  border-top:5px solid var(--verde-600);
  transition:transform .15s ease, box-shadow .15s ease;
}
.pick-card.night{ border-top-color:var(--maiz-500); background:var(--noche-900); color:var(--crema-100); }
.pick-card.night p{ color:var(--verde-200); }
.pick-card:hover{ transform:translateY(-3px); box-shadow:0 2px 0 rgba(36,26,16,.15), 0 14px 26px -14px rgba(36,26,16,.45); }
.pick-card:focus-visible{ transform:translateY(-3px); }
.pick-badge{
  width:52px; height:52px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1.5rem; margin-bottom:1rem;
  background:var(--verde-200); overflow:hidden;
}
.pick-card.night .pick-badge{ background:var(--maiz-300); }
.pick-badge img{ width:100%; height:100%; object-fit:cover; }
.pick-meta{ list-style:none; padding:0; margin:1rem 0 1.2rem; font-family:var(--font-mono); font-size:.85rem; color:var(--tierra-700); }
.pick-card.night .pick-meta{ color:var(--maiz-300); }
.pick-meta li{ padding:.15rem 0; }
.pick-cta{ font-weight:700; color:var(--verde-700); }
.pick-card.night .pick-cta{ color:var(--maiz-300); }

/* ============================================================
   Encabezado de sección (diurna / nocturna)
   ============================================================ */
.section-header{
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:1rem clamp(1.2rem,4vw,3rem);
  border-bottom:5px solid var(--maiz-500);
}
.section-header.day{ background:var(--crema-200); }
.section-header.night{ background:var(--noche-950); color:var(--crema-100); }
.section-header .home{ display:flex; align-items:center; gap:.8rem; text-decoration:none; color:inherit; }
.section-header .crest{ width:48px; height:48px; border-radius:50%; overflow:hidden; background:var(--maiz-500); flex:0 0 auto; }
.section-header .crest img{ width:100%; height:100%; object-fit:cover; }
.section-header strong{ display:block; font-family:var(--font-display); font-size:1.05rem; }
.section-header small{ display:block; font-family:var(--font-mono); font-size:.72rem; color:var(--tierra-700); }
.section-header.night small{ color:var(--maiz-300); }
.switch-link{
  font-family:var(--font-mono); font-size:.82rem; text-decoration:none;
  padding:.5rem .9rem; border-radius:999px; border:1px solid currentColor;
  white-space:nowrap;
}
.section-header.day .switch-link{ color:var(--verde-700); }
.section-header.night .switch-link{ color:var(--maiz-300); }
.switch-link:hover{ background:rgba(0,0,0,.06); }
.section-header.night .switch-link:hover{ background:rgba(255,255,255,.08); }

.header-actions{ display:flex; align-items:center; gap:.7rem; flex-wrap:wrap; }
.portal-link{
  display:inline-flex; align-items:center; gap:.4rem;
  font-family:var(--font-mono); font-size:.82rem; font-weight:500;
  text-decoration:none; white-space:nowrap;
  padding:.5rem .9rem; border-radius:999px;
  background:var(--maiz-500); color:var(--tierra-900);
  transition:background .15s ease;
}
.portal-link:hover{ background:var(--maiz-600); }
.portal-link svg{ width:14px; height:14px; flex:0 0 auto; }
.brand-bar .portal-link{ margin-left:auto; }

/* ============================================================
   Navegación
   ============================================================ */
.topnav-wrap{ position:sticky; top:0; z-index:20; }
.topnav{ position:relative; }
.topnav.day{ background:var(--verde-800); }
.topnav.night{ background:var(--tierra-900); }
.topnav ul{
  list-style:none; margin:0; padding:0;
  display:flex; flex-wrap:wrap;
  max-width:var(--maxw); margin-inline:auto;
}
.topnav > ul > li{ position:relative; }
.topnav a{
  display:block; text-decoration:none; color:var(--crema-100);
  padding:.85rem 1.1rem; font-size:.92rem; font-weight:600;
}
.topnav > ul > li > a:hover, .topnav > ul > li:focus-within > a{ background:rgba(255,255,255,.09); }
.topnav .submenu{
  list-style:none; margin:0; padding:.4rem 0;
  position:absolute; left:0; top:100%; min-width:210px;
  background:var(--crema-100); border:1px solid var(--borde); border-radius:0 0 var(--radius-md) var(--radius-md);
  box-shadow:var(--shadow-card);
  display:none; z-index:5;
}
.topnav.night .submenu{ background:var(--noche-900); border-color:var(--verde-800); }
.has-sub:hover .submenu, .has-sub:focus-within .submenu{ display:block; }
.topnav .submenu a{ color:var(--tinta); padding:.55rem 1.1rem; font-weight:500; }
.topnav.night .submenu a{ color:var(--crema-100); }
.topnav .submenu a:hover{ background:var(--crema-200); }
.topnav.night .submenu a:hover{ background:var(--verde-800); }
.nav-toggle{ display:none; }

@media (max-width: 780px){
  .nav-toggle{
    display:block; width:100%; text-align:left;
    background:none; border:none; color:var(--crema-100);
    font-family:var(--font-body); font-size:.95rem; font-weight:600;
    padding:.9rem 1.2rem; cursor:pointer;
  }
  .topnav ul{ display:none; flex-direction:column; }
  .topnav.is-open ul{ display:flex; }
  .topnav .submenu{ position:static; display:none; box-shadow:none; border:none; border-radius:0; background:rgba(0,0,0,.12); }
  .has-sub.is-open .submenu{ display:block; }
  .topnav > ul > li > a{ border-top:1px solid rgba(255,255,255,.08); }
}

/* ============================================================
   Surcos de siembra — elemento de firma
   Divisor de sección en forma de surcos arados
   ============================================================ */
.furrow-divider{
  display:block; width:100%; height:34px;
  color:var(--verde-700);
}
.furrow-divider.night{ color:var(--maiz-600); }
.furrow-divider path{ fill:none; stroke:currentColor; stroke-width:2; opacity:.55; }
.furrow-divider path:nth-child(2){ opacity:.32; }
.furrow-divider path:nth-child(3){ opacity:.18; }

/* ============================================================
   Hero de sección (diurna / nocturna)
   ============================================================ */
.hero{
  position:relative; overflow:hidden;
  padding:clamp(2.6rem,6vw,4.5rem) clamp(1.2rem,4vw,3rem) clamp(3.4rem,6vw,4.5rem);
}
.hero.day{
  background-color:var(--crema-200);
  background-image:
    linear-gradient(180deg, rgba(244,239,221,.93), rgba(244,239,221,.88) 55%, rgba(244,239,221,.97)),
    url('../assets/banner-especialidades.png');
  background-repeat:no-repeat, no-repeat;
  background-position:center, center 22%;
  background-size:cover, cover;
}
.hero.night{
  background-color:var(--noche-950);
  background-image:
    linear-gradient(180deg, rgba(20,29,18,.90), rgba(26,38,24,.86) 55%, rgba(20,29,18,.94)),
    url('../assets/banner-nocturna.jpg');
  background-repeat:no-repeat, no-repeat;
  background-position:center, center 30%;
  background-size:cover, cover;
  color:var(--crema-100);
}
.hero.night h2{ color:var(--crema-100); }
.hero-inner{ max-width:720px; margin:0 auto; position:relative; z-index:1; }
.block-eyebrow{
  display:inline-flex; align-items:center; gap:.4rem;
  font-family:var(--font-mono); font-size:.8rem;
  color:var(--verde-700);
  background:var(--verde-200);
  padding:.25rem .65rem; border-radius:999px;
  margin-bottom:.9rem;
}
.hero.night .block-eyebrow{ background:var(--verde-800); color:var(--maiz-300); }
.hero .lead{ font-size:1.08rem; max-width:60ch; }
.hero.day .lead{ color:var(--tinta-suave); }
.hero.night .lead{ color:var(--verde-200); }
.hero .lead em{ display:block; margin-top:.7rem; font-size:.85rem; color:var(--tierra-500); font-style:italic; }
.hero.night .lead em{ color:var(--maiz-300); opacity:.8; }

/* ============================================================
   Contenido
   ============================================================ */
.content{ max-width:var(--maxw); margin:0 auto; padding:0 clamp(1.2rem,4vw,2rem); }
.block{ padding:3.2rem 0; border-bottom:1px solid var(--borde); }
.block:last-child{ border-bottom:none; }
.block .block-eyebrow{ background:var(--crema-200); color:var(--verde-700); }

.placeholder-note{
  font-family:var(--font-mono); font-size:.82rem;
  color:var(--tierra-700); background:var(--crema-200);
  border-left:3px solid var(--maiz-500);
  padding:.6rem .9rem; margin-top:1rem; max-width:60ch;
}
.placeholder-note a{ color:var(--verde-700); text-decoration:underline; }
body.night .placeholder-note a{ color:var(--maiz-300); }
.placeholder-note.night{ background:var(--noche-800); color:var(--maiz-300); border-left-color:var(--maiz-500); }

/* especialidades — estilo "paquete de semilla" */
.cards{ display:flex; flex-wrap:wrap; gap:1.3rem; margin-top:1.6rem; }
.card{
  flex:1 1 320px;
  background:var(--crema-100);
  border:1px solid var(--borde);
  border-radius:var(--radius-md);
  padding:1.4rem 1.4rem 1.5rem;
  position:relative;
}
.card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:6px;
  border-radius:var(--radius-md) var(--radius-md) 0 0;
  background:repeating-linear-gradient(90deg, var(--verde-600) 0 10px, var(--maiz-500) 10px 20px);
}
.tag{
  display:inline-block; font-family:var(--font-mono); font-size:.75rem;
  color:var(--verde-700); background:var(--verde-200);
  padding:.2rem .55rem; border-radius:var(--radius-sm); margin-bottom:.6rem;
}
.tag.night{ color:var(--maiz-600); background:var(--maiz-300); }
.card p{ font-size:.95rem; color:var(--tinta-suave); }

.spec-details{ margin:.8rem 0 0; }
.spec-details dt{ font-family:var(--font-mono); font-size:.72rem; color:var(--verde-700); margin-top:.85rem; }
.spec-details dt:first-child{ margin-top:0; }
.spec-details dd{ margin:.2rem 0 0; font-size:.9rem; color:var(--tinta-suave); }
body.night .spec-details dt{ color:var(--maiz-300); }
body.night .spec-details dd{ color:var(--verde-200); }

.banner-img{
  width:100%; height:auto; display:block;
  border-radius:var(--radius-md);
  border:1px solid var(--borde);
  margin-top:1.6rem;
}
.schedule{ width:100%; border-collapse:collapse; margin-top:1.4rem; font-family:var(--font-mono); font-size:.92rem; }
.schedule th, .schedule td{ padding:.65rem .9rem; text-align:left; border-bottom:1px solid var(--borde); }
.schedule th{ font-weight:700; color:var(--verde-700); border-bottom:2px solid var(--verde-600); }
body.night .schedule th{ color:var(--maiz-300); border-bottom-color:var(--maiz-500); }
.schedule tbody tr:nth-child(odd){ background:var(--crema-200); }
body.night .schedule tbody tr:nth-child(odd){ background:var(--noche-800); }
body.night .schedule td, body.night .schedule th{ border-bottom-color:var(--verde-800); }
body.night dt{ color:var(--maiz-300); }
body.night .content{ color:var(--crema-100); }
body.night .block{ border-bottom-color:var(--verde-800); }
body.night h3, body.night h4{ color:var(--crema-100); }
body.night .card{ background:var(--noche-900); border-color:var(--verde-800); }
body.night .card p{ color:var(--verde-200); }
body.night{ background:var(--noche-950); }
body.night .placeholder-note{ background:var(--noche-800); }

/* contacto */
.contact-grid{ display:flex; flex-wrap:wrap; gap:1.6rem; margin-top:1.4rem; }
.contact-grid > div{ flex:1 1 260px; }
dl{ margin:0; }
dt{ font-family:var(--font-mono); font-size:.78rem; color:var(--verde-700); margin-top:.9rem; }
dt:first-child{ margin-top:0; }
dd{ margin:.15rem 0 0; font-size:.98rem; }
dd a{ color:var(--verde-700); text-decoration:underline; }
body.night dd a{ color:var(--maiz-300); }

/* pie de página */
.site-footer{
  background:var(--verde-900); color:var(--crema-200);
  padding:1.4rem clamp(1.2rem,4vw,3rem);
  display:flex; flex-wrap:wrap; gap:.4rem 1.4rem; justify-content:space-between;
  font-size:.88rem; border-top:5px solid var(--maiz-500);
}

@media (max-width: 640px){
  .pick-wrap{ margin-top:-1.6rem; }
  .section-header{ flex-wrap:wrap; }
}