/* Control de Plagas Explicado — hoja de estilos única
   Diseño sobrio, técnico y educativo. Sin dependencias externas.
   Paleta coherente con la marca del canal (verde-azulado). */

:root{
  --accent:#1f9d68;
  --accent-dark:#177a51;
  --accent-soft:rgba(31,157,104,.08);
  --ink:#1a1f24;
  --ink-soft:#3d454c;
  --muted:#5b6770;
  --line:#e3e8e6;
  --bg:#ffffff;
  --bg-soft:#f5f8f7;
  --bg-softer:#fafcfb;
  --warn-bg:#fff7e8;
  --warn-line:#f0d9ad;
  --radius:12px;
  --radius-lg:18px;
  --maxw:1080px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans",sans-serif;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:2rem}
h2{font-size:1.45rem}
h3{font-size:1.15rem}
p{margin:0 0 1em}
small{color:var(--muted)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:100;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* ---------- Header / nav ---------- */
.site-header{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(6px);z-index:50}
.site-header .container{display:flex;align-items:center;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:1.02rem;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand .mark{width:34px;height:34px;flex-shrink:0;display:block}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{color:var(--ink-soft);padding:8px 12px;border-radius:8px;font-size:.97rem;font-weight:500}
.nav a:hover{background:var(--bg-soft);text-decoration:none}
.nav a[aria-current="page"]{color:var(--accent-dark);background:var(--accent-soft)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;width:42px;height:42px;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:.15s}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}

@media (max-width:820px){
  .nav-toggle{display:flex}
  .nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 16px 16px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:.15s;box-shadow:var(--shadow)}
  .nav.open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:14px 8px;border-bottom:1px solid var(--line);border-radius:0;font-size:1.05rem}
  .nav a:last-child{border-bottom:0}
}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:600;font-size:1rem;border:1px solid transparent;cursor:pointer;transition:.12s;line-height:1;text-align:center}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--muted)}
.btn-disabled,.btn[disabled]{background:var(--bg-soft);color:var(--muted);border-color:var(--line);cursor:not-allowed;pointer-events:none}
.btn-lg{padding:15px 26px;font-size:1.05rem}

/* ---------- Generic sections ---------- */
main{display:block}
.section{padding:56px 0}
.section-tight{padding:36px 0}
.section h2{margin-bottom:.15em}
.section .lead{color:var(--muted);margin-bottom:1.6em;max-width:60ch}
.bg-soft{background:var(--bg-soft)}
.center{text-align:center}
.row-between{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}

/* ---------- Hero ---------- */
.hero{padding:64px 0 40px;background:linear-gradient(180deg,var(--accent-soft),transparent)}
.hero h1{font-size:2.4rem;max-width:16ch}
.hero p{font-size:1.12rem;color:var(--ink-soft);max-width:56ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.hero-search{margin-top:24px;max-width:520px}

/* ---------- Search box ---------- */
.searchbox{display:flex;gap:8px}
.searchbox input[type="search"]{flex:1;padding:13px 15px;border:1px solid var(--line);border-radius:10px;font-size:1rem;font-family:inherit;background:#fff}
.searchbox input[type="search"]:focus{border-color:var(--accent);outline:none}

/* ---------- Category grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.cat-card{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:#fff;transition:.12s;display:block}
.cat-card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow)}
.cat-card h3{margin-bottom:.2em;color:var(--ink)}
.cat-card p{margin:0;color:var(--muted);font-size:.95rem}
.cat-card .cat-ico{width:34px;height:34px;margin-bottom:12px}

/* ---------- Card grid (recursos / videos) ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;display:flex;flex-direction:column;transition:.12s}
.card:hover{box-shadow:var(--shadow);border-color:#d3dbd8}
.card .thumb{aspect-ratio:16/9;background:var(--bg-soft);position:relative;overflow:hidden}
.card .thumb svg{width:100%;height:100%}
.card .body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .body h3{font-size:1.05rem;margin:0}
.card .body h3 a{color:var(--ink)}
.card .body p{margin:0;font-size:.92rem;color:var(--muted);flex:1}
.card .meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-top:2px}

/* ---------- Tags / badges ---------- */
.tag{display:inline-flex;align-items:center;gap:5px;font-size:.76rem;font-weight:600;padding:3px 9px;border-radius:999px;background:var(--bg-soft);color:var(--ink-soft);border:1px solid var(--line);letter-spacing:.01em}
.tag-video{background:var(--accent-soft);color:var(--accent-dark);border-color:transparent}
.tag-free{background:#e8f6ee;color:#1a7a48;border-color:transparent}
.tag-paid{background:#eef1f5;color:#41505f;border-color:transparent}
.tag-soon{background:var(--warn-bg);color:#9a6a12;border-color:transparent}
.tag-cat{background:#fff}
.tag-recurso{background:var(--accent);color:#fff;border-color:transparent}
.video-recurso{margin:2px 0 0;font-size:.86rem;color:var(--muted)}
.video-recurso-label{font-weight:600;color:var(--ink-soft)}

/* ---------- Filter bar ---------- */
.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:18px 0 6px}
.filters .searchbox{flex:1;min-width:220px}
.filters select{padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:.95rem;font-family:inherit;background:#fff;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font-size:.88rem;font-weight:500;cursor:pointer;color:var(--ink-soft)}
.chip[aria-pressed="true"]{background:var(--accent);color:#fff;border-color:var(--accent)}
.result-count{color:var(--muted);font-size:.9rem;margin:8px 0 0}
.empty{padding:40px 20px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius)}

/* ---------- Resource detail ---------- */
.res-head{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;padding:36px 0 8px}
.res-head .res-media{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-soft)}
.res-head .res-media svg{width:100%;height:100%;display:block;aspect-ratio:4/3}
.res-head h1{font-size:1.9rem;margin-top:6px}
.res-head .res-desc{color:var(--ink-soft);font-size:1.05rem}
.res-badges{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 14px}
.res-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}
.res-note{margin-top:14px;font-size:.9rem;color:var(--muted)}
@media (max-width:760px){.res-head{grid-template-columns:1fr;gap:18px;padding-top:24px}.res-head .res-media{order:-1}}

/* ---------- Notice / callout ---------- */
.notice{border:1px solid var(--warn-line);background:var(--warn-bg);border-radius:var(--radius);padding:16px 18px;font-size:.95rem;color:#6b4e16;margin:20px 0}
.notice strong{color:#573f10}
.callout{border:1px solid var(--line);border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:var(--radius);padding:16px 18px;margin:20px 0}
.demo-banner{background:#1f2937;color:#e5e7eb;font-size:.86rem;text-align:center;padding:8px 16px}
.demo-banner strong{color:#fff}

/* ---------- YouTube embed slot ---------- */
.yt-slot{aspect-ratio:16/9;border:1px dashed var(--line);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;text-align:center;color:var(--muted);background:var(--bg-softer);padding:20px;font-size:.95rem}
.yt-slot iframe{width:100%;height:100%;border:0;border-radius:var(--radius)}

/* ---------- Brand mini ---------- */
.brand-mini{display:grid;grid-template-columns:180px 1fr;gap:26px;align-items:center}
.brand-mini--about{grid-template-columns:232px 1fr;align-items:start}
.brand-mini .photo{width:100%;aspect-ratio:4/5;border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--bg-soft);object-fit:cover;object-position:center 22%;display:block}
@media (max-width:640px){
  .brand-mini,.brand-mini--about{grid-template-columns:1fr;text-align:left}
  .brand-mini .photo{max-width:190px}
}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft);padding:40px 0;margin-top:60px;font-size:.92rem}
.site-footer .cols{display:flex;flex-wrap:wrap;gap:30px 60px;justify-content:space-between}
.site-footer h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.7em}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.site-footer a{color:var(--ink-soft)}
.site-footer .legal{margin-top:26px;color:var(--muted);font-size:.85rem;border-top:1px solid var(--line);padding-top:18px}

/* ---------- Breadcrumb ---------- */
.crumbs{font-size:.86rem;color:var(--muted);padding:16px 0 0}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px}

/* ---------- Utilities ---------- */
.stack-lg>*+*{margin-top:36px}
.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.hr{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- Hero 2 columnas + composición visual ---------- */
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,440px);gap:44px;align-items:center}
.hero-copy{min-width:0}
.hero-copy h1{font-size:2.35rem;max-width:18ch}
.hero-copy p{font-size:1.1rem;color:var(--ink-soft);max-width:52ch}
.hero-visual{display:flex;justify-content:flex-end;min-width:0}
.hero-visual svg{height:410px;width:auto;max-width:100%}
.hero-search{max-width:600px}
.field-hint{display:block;margin-top:8px;color:var(--muted);font-size:.86rem;line-height:1.4}
.hero-search .searchbox input[type="search"]{font-size:.94rem}
.hero-search input[type="search"]::placeholder{font-size:.88rem;opacity:.85}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:18px}
  .hero-visual{justify-content:center;margin-top:4px}
  .hero-visual svg{height:auto;width:auto;max-width:196px;max-height:320px}
}

/* ---------- Enlace pendiente (sin navegación) ---------- */
.pendiente{color:var(--muted);cursor:default}

/* ---------- Fila de acciones + icono compacto de LinkedIn ---------- */
.brand-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.li-inline{margin:14px 0 0}
.li-icon{display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;flex:none;border:1px solid var(--line);border-radius:10px;
  background:#fff;transition:transform .14s,box-shadow .14s,border-color .14s}
.li-icon img{width:34px;height:34px;display:block}
.li-icon:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-1px);text-decoration:none}
.li-icon:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
/* Acerca de: LinkedIn + YouTube en la MISMA fila (LinkedIn izquierda, YouTube derecha) */
.social-row{display:flex;flex-direction:row;gap:12px;align-items:center;margin:14px 0 0}
/* Footer: iconos APILADOS en vertical (YouTube arriba, LinkedIn debajo) */
.footer-social{display:flex;flex-direction:column;gap:10px;align-items:flex-start;margin:12px 0 0}
.site-footer .li-icon{width:40px;height:40px;border-color:transparent;background:transparent}
.site-footer .li-icon img{width:22px;height:22px}
.site-footer .li-icon:hover{border-color:transparent;box-shadow:none;transform:none;background:rgba(16,24,40,.05)}

/* ---------- Aviso compacto ---------- */
.notice-compact{padding:10px 14px;font-size:.86rem;margin:14px 0}

/* ---------- Estado vacío profesional ---------- */
.empty-state{grid-column:1/-1;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:44px 24px;text-align:center;color:var(--muted);background:var(--bg-softer)}
.empty-state svg{width:44px;height:44px;margin-bottom:12px;opacity:.7}
.empty-state p{margin:0;font-size:1rem}
.empty-state.compact{padding:20px 22px}
.empty-state.compact svg{display:none}

/* ---------- Miniaturas reales cuando existan ---------- */
.thumb img,.res-media img{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- Reproductor / nota de video en la ficha ---------- */
.yt-embed{aspect-ratio:16/9;border-radius:var(--radius-lg);overflow:hidden;background:#000;align-self:start}
.yt-embed iframe{width:100%;height:100%;border:0;display:block}
.video-nota{display:flex;align-items:baseline;gap:8px;font-size:.9rem;color:var(--muted);margin:0 0 10px;line-height:1.45}
.video-nota::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--accent);transform:translateY(-1px)}
.res-info{min-width:0}

/* ---------- Formulario de contacto ---------- */
.form{margin-top:8px}
.form .field{margin:0 0 18px}
.form label{display:block;font-weight:600;font-size:.95rem;margin:0 0 6px;color:var(--ink)}
.form input[type="text"],.form input[type="email"],.form textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font:inherit;font-size:1rem;background:#fff;color:var(--ink)}
.form textarea{resize:vertical;min-height:130px;line-height:1.55}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.form input[aria-invalid="true"],.form textarea[aria-invalid="true"]{border-color:#b3261e;box-shadow:0 0 0 3px rgba(179,38,30,.12)}
.form .field-check label{font-weight:400;display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.form .field-check input{margin-top:3px;flex:none;width:18px;height:18px}
.field-error{color:#b3261e;font-size:.85rem;margin:5px 0 0;min-height:1px}
.field-error:empty{margin:0}
.form-status{margin:12px 0 0;font-size:.92rem;color:var(--muted)}
.form .btn[disabled]{opacity:.7}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* ---------- Metadatos de descarga (formato/tamaño/versión) ---------- */
.dl-meta{display:flex;flex-wrap:wrap;gap:6px 16px;margin:12px 0 0;padding:0;list-style:none;
  color:var(--muted);font-size:.86rem}
.dl-meta li{display:flex;gap:6px}
.dl-meta strong{color:var(--ink-soft);font-weight:600}

@media (max-width:520px){
  body{font-size:16px}
  h1{font-size:1.7rem}
  .hero-copy h1{font-size:1.95rem}
  .section{padding:44px 0}
}