/* ===================== TOKENS ===================== */
:root{
  --bg:#fff4c2;
  --bg-soft:#ffe79a;
  --surface:#ffffff;
  --ink:#3a312b;
  --ink-soft:#7b6f64;
  --line:#f0e2cc;
  --brand:#ef7d34;       /* naranja baúl */
  --brand-dark:#cf5f1c;
  --brand-soft:#ffe6d0;
  --c-art:#f3954e;
  --c-sci:#5aa9d6;
  --c-math:#9b8cdb;
  --c-tech:#f0c14b;
  --c-hum:#ef8fb0;
  --c-lang:#7bc47f;
  --gold:#f5b73d;
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 14px 34px -14px rgba(120,70,30,.3);
  --shadow-sm:0 6px 18px -10px rgba(120,70,30,.35);
  --maxw:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Nunito',system-ui,sans-serif;
  color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;
  background:
    radial-gradient(40% 30% at 8% 12%, rgba(90,169,214,.20), transparent 60%),
    radial-gradient(38% 28% at 92% 8%, rgba(123,196,127,.20), transparent 60%),
    radial-gradient(45% 35% at 95% 55%, rgba(239,143,176,.16), transparent 62%),
    radial-gradient(45% 35% at 4% 70%, rgba(155,140,219,.16), transparent 62%),
    linear-gradient(180deg,#fff7cc 0%,#ffe680 100%);
  background-attachment:fixed;
}
h1,h2,h3,.brand-text,.wordmark{font-family:'Baloo 2',cursive;line-height:1.08;font-weight:700}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ===================== HEADER ===================== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,247,234,.9);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:9px;font-size:1.2rem;cursor:pointer;margin-right:auto}
.brand-icon{font-size:1.5rem}
.brand-text{color:var(--brand-dark);font-weight:800}
.main-nav{display:flex;gap:4px;align-items:center}
.nav-link{
  font:inherit;font-weight:700;font-size:.97rem;font-family:'Nunito',sans-serif;
  background:none;border:none;cursor:pointer;color:var(--ink-soft);
  padding:9px 15px;border-radius:999px;transition:.18s;
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-soft)}
.nav-link.active{color:#fff;background:var(--brand)}
.nav-search{position:relative;margin-left:8px}
.nav-search input{
  font:inherit;font-size:.9rem;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:8px 16px 8px 36px;width:180px;transition:.2s;
}
.nav-search input:focus{outline:none;border-color:var(--brand);width:210px;box-shadow:0 0 0 3px var(--brand-soft)}
.nav-search-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);font-size:.85rem;pointer-events:none}
.nav-avatar{font-size:1.3rem;width:38px;height:38px;display:grid;place-items:center;background:var(--brand-soft);border-radius:50%;margin-left:6px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}

/* ===================== TABS ===================== */
.tab-panel{display:none;animation:fade .35s ease}
.tab-panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.section{padding:60px 0}
.section.narrow{max-width:730px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}
.page-title{font-size:clamp(2rem,4vw,2.9rem);margin-bottom:10px}
.page-intro{color:var(--ink-soft);max-width:640px;font-size:1.05rem;margin-bottom:28px;font-weight:600}
.section-title{font-size:clamp(1.7rem,3vw,2.3rem);text-align:center;margin-bottom:34px;color:var(--ink);position:relative;padding-bottom:14px}
.section-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:90px;height:5px;border-radius:999px;background:linear-gradient(90deg,var(--c-art),var(--c-sci),var(--c-lang))}

/* ===================== HERO (banner) ===================== */
.hero{
  position:relative;overflow:hidden;text-align:center;padding:46px 0 56px;
  background:
    radial-gradient(60% 50% at 50% -10%, rgba(255,214,84,.6), transparent 60%),
    linear-gradient(160deg,#fff7cc 0%,#ffec9e 55%,#ffe066 100%);
  border-bottom:3px solid transparent;
  border-image:linear-gradient(90deg,var(--c-art),var(--c-sci),var(--c-math),var(--c-lang)) 1;
}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(8px);opacity:.5;z-index:0}
.hero::before{width:130px;height:130px;background:var(--c-sci);top:-30px;left:-30px}
.hero::after{width:160px;height:160px;background:var(--c-hum);bottom:-50px;right:-40px}
.hero .container{position:relative;z-index:1}
.wordmark{font-size:clamp(2.4rem,7vw,4.6rem);font-weight:800;letter-spacing:.01em;margin-bottom:6px;display:flex;flex-wrap:wrap;justify-content:center;gap:.18em;align-items:center;text-shadow:2px 3px 0 rgba(0,0,0,.08)}
.wordmark .w-c1{color:#ef5f5f}
.wordmark .w-c2{color:#5aa9d6}
.wordmark .w-c3{color:#7bc47f}
.wordmark .w-c1,.wordmark .w-c2,.wordmark .w-c3{display:inline-block;transition:transform .2s}
.wordmark:hover .w-c1{transform:rotate(-4deg) translateY(-3px)}
.wordmark:hover .w-c2{transform:translateY(-5px)}
.wordmark:hover .w-c3{transform:rotate(4deg) translateY(-3px)}
.wordmark .w-mid{color:var(--ink);font-size:.5em;font-weight:700;align-self:center}
.tagline{font-size:clamp(1.05rem,2.4vw,1.4rem);color:var(--ink-soft);font-weight:700;margin-bottom:18px}
.hero-banner{display:flex;justify-content:center}
.hero-illustration{width:100%;max-width:560px;height:auto;filter:drop-shadow(0 18px 28px rgba(120,70,30,.22));animation:float 5s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-12px)}}
@media(prefers-reduced-motion:reduce){.hero-illustration{animation:none}}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin:26px 0 30px}
.hero-stats{display:flex;gap:40px;justify-content:center}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-family:'Baloo 2',cursive;font-size:2rem;color:var(--brand-dark)}
.hero-stats span{font-size:.82rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.08em;font-weight:700}

/* ===================== BUTTONS ===================== */
.btn{font:inherit;font-weight:800;cursor:pointer;border:none;border-radius:999px;padding:13px 28px;transition:.18s;font-size:1rem}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--brand-dark);border:2.5px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}

/* ===================== CATEGORÍAS DESTACADAS ===================== */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cat-card{
  font:inherit;text-align:left;cursor:pointer;border:none;color:#fff;
  border-radius:var(--radius);padding:22px 22px 20px;box-shadow:var(--shadow-sm);
  transition:.2s;position:relative;overflow:hidden;
}
.cat-card:hover{transform:translateY(-5px) rotate(-.5deg);box-shadow:var(--shadow)}
.cat-card .cat-ico{font-size:2.1rem;display:block;margin-bottom:8px}
.cat-card h3{font-size:1.3rem;margin-bottom:4px;color:#fff}
.cat-card p{font-size:.92rem;font-weight:600;color:rgba(255,255,255,.92)}
.cat-art{background:linear-gradient(135deg,#f6a45f,var(--c-art))}
.cat-sci{background:linear-gradient(135deg,#74bce0,var(--c-sci))}
.cat-math{background:linear-gradient(135deg,#ad9fe6,var(--c-math))}
.cat-tech{background:linear-gradient(135deg,#f6cd66,var(--c-tech));color:#5a4a16}
.cat-tech h3,.cat-tech p{color:#5a4a16}
.cat-tech p{color:#6e5a1e}
.cat-hum{background:linear-gradient(135deg,#f4a6c0,var(--c-hum))}
.cat-lang{background:linear-gradient(135deg,#94d097,var(--c-lang))}

/* ===================== FEATURE CARDS ===================== */
.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:var(--surface);border:1px solid var(--line);border-top:6px solid var(--brand);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);transition:.2s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.feature-card:nth-child(1){border-top-color:var(--c-sci);background:linear-gradient(#fff,#f1f8fc)}
.feature-card:nth-child(2){border-top-color:var(--c-lang);background:linear-gradient(#fff,#f1faf2)}
.feature-card:nth-child(3){border-top-color:var(--c-hum);background:linear-gradient(#fff,#fdf2f6)}
.feature-card:nth-child(4){border-top-color:var(--c-math);background:linear-gradient(#fff,#f6f4fc)}
.feature-icon{font-size:2.1rem;margin-bottom:12px}
.feature-card h3{font-size:1.2rem;margin-bottom:8px}
.feature-card p{color:var(--ink-soft);font-size:.95rem;margin-bottom:14px;font-weight:600}
.link-arrow{background:none;border:none;color:var(--brand);font:inherit;font-weight:800;cursor:pointer;padding:0}
.link-arrow:hover{color:var(--brand-dark)}

/* ===================== BAND ===================== */
.band{background:var(--c-lang);color:#1f4a22;padding:54px 0;margin-top:20px}
.band-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.band h2{font-size:1.9rem;margin-bottom:12px}
.band p{color:#2c5a2f;font-weight:600}
.checklist{list-style:none;display:grid;gap:12px}
.checklist li{padding-left:32px;position:relative;font-weight:700}
.checklist li::before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;background:#fff;color:#2c7a30;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.8rem}

/* ===================== FILTERS ===================== */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.filter-btn{font:inherit;font-weight:700;font-size:.9rem;cursor:pointer;background:var(--surface);border:1.5px solid var(--line);color:var(--ink-soft);padding:9px 18px;border-radius:999px;transition:.16s}
.filter-btn:hover{border-color:var(--brand)}
.filter-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ===================== RESOURCE GRID ===================== */
.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.resource-card{background:var(--surface);border:1px solid var(--line);border-left:6px solid var(--c-sci);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.resource-card:nth-child(6n+1){border-left-color:var(--c-art)}
.resource-card:nth-child(6n+2){border-left-color:var(--c-sci)}
.resource-card:nth-child(6n+3){border-left-color:var(--c-math)}
.resource-card:nth-child(6n+4){border-left-color:var(--c-tech)}
.resource-card:nth-child(6n+5){border-left-color:var(--c-hum)}
.resource-card:nth-child(6n){border-left-color:var(--c-lang)}
.rc-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.rc-cat{font-size:.74rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--c-sci);background:#e4f1f9;padding:4px 10px;border-radius:999px}
.rc-type{font-size:.8rem;color:var(--ink-soft);font-weight:700}
.resource-card h3{font-size:1.18rem;margin-bottom:8px}
.resource-card p{color:var(--ink-soft);font-size:.93rem;flex:1;margin-bottom:14px;font-weight:600}
.rc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.rc-tag{font-size:.74rem;background:var(--bg-soft);color:var(--ink-soft);padding:3px 9px;border-radius:6px;font-weight:700}
.rc-link{font-weight:800;color:var(--brand);font-size:.9rem}
.rc-link:hover{color:var(--brand-dark)}
.empty-note{text-align:center;color:var(--ink-soft);padding:40px 0;font-weight:600}
.badge-new{font-size:.68rem;background:var(--gold);color:#5a4208;font-weight:800;padding:2px 8px;border-radius:999px;margin-left:6px}

/* ===================== FORMS ===================== */
.resource-form,.forum-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.field{margin-bottom:18px;display:flex;flex-direction:column}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{font-weight:800;font-size:.9rem;margin-bottom:7px}
input,select,textarea{font:inherit;background:var(--bg);border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:11px 14px;color:var(--ink);transition:.16s;width:100%;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-msg{font-size:.92rem;font-weight:700;color:var(--c-lang)}
.form-msg.error{color:var(--brand-dark)}

/* ===================== FORO ===================== */
.forum-form{display:grid;gap:14px;margin-bottom:34px}
.forum-form button{justify-self:start}
.forum-list{display:grid;gap:18px}
.thread{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.thread-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.thread h3{font-size:1.22rem}
.thread-meta{font-size:.82rem;color:var(--ink-soft);font-weight:700}
.thread-body{color:var(--ink-soft);margin-bottom:14px;font-weight:600}
.thread-actions{display:flex;gap:14px;align-items:center}
.reply-toggle{background:none;border:none;color:var(--brand);font:inherit;font-weight:800;cursor:pointer;padding:0}
.reply-count{font-size:.84rem;color:var(--ink-soft);font-weight:700}
.replies{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:grid;gap:12px}
.reply{background:var(--bg-soft);border-radius:var(--radius-sm);padding:12px 14px}
.reply .thread-meta{margin-bottom:4px}
.reply-form{margin-top:14px;display:grid;gap:8px}
.reply-form button{justify-self:start;padding:9px 18px;font-size:.9rem}
.hidden{display:none}

/* ===================== SEARCH ===================== */
.search-box{position:relative;margin-bottom:14px}
.search-icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);font-size:1.1rem}
#searchInput{padding-left:48px;font-size:1.05rem;padding-top:15px;padding-bottom:15px}
.search-hint{color:var(--ink-soft);font-size:.92rem;margin-bottom:24px;font-weight:600}
mark{background:var(--gold);color:#5a4208;border-radius:3px;padding:0 2px}

/* ===================== FOOTER ===================== */
.site-footer{background:#3a312b;color:#f0e2d2;margin-top:0}
.footer-grid{display:flex;justify-content:space-between;gap:30px;padding:46px 0 26px;flex-wrap:wrap}
.footer-brand{color:#fff;font-size:1.1rem;margin-bottom:8px}
.footer-grid p{color:#c3b4a4;font-size:.95rem;font-weight:600}
.footer-nav{display:flex;flex-wrap:wrap;gap:6px;align-items:flex-start}
.footer-nav .nav-link{color:#d7c9b8}
.footer-nav .nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);text-align:center;padding:18px;font-size:.85rem;color:#a8998a;font-weight:600}

/* ===================== RESPONSIVE ===================== */
@media(max-width:980px){
  .cat-grid{grid-template-columns:1fr 1fr}
  .cards-grid{grid-template-columns:1fr 1fr}
  .band-grid{grid-template-columns:1fr}
  .resource-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .nav-search{display:none}
}
@media(max-width:680px){
  .nav-toggle{display:flex}
  .brand{margin-right:0}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--bg);border-bottom:1px solid var(--line);padding:14px 22px;gap:6px;
    transform:translateY(-140%);transition:.3s;box-shadow:var(--shadow);
  }
  .main-nav.open{transform:translateY(0)}
  .nav-link{width:100%;text-align:left}
  .nav-search{display:block;margin:6px 0 0}
  .nav-search input{width:100%}
  .nav-avatar{display:none}
  .cat-grid,.cards-grid,.resource-grid,.field-row{grid-template-columns:1fr}
  .hero-stats{gap:26px}
}