:root{
  --green:#2A6045; --green-dark:#1E4733; --green-deep:#163626;
  --cream:#FDF7E5; --ink:#4C4948; --rust:#BB4633; --rust-dark:#9E3A2A;
  --gold:#FE9B21; --white:#fff;
  --radius:16px;
  --shadow:0 10px 30px rgba(10,30,20,.25);
  --display:"Fraunces",Georgia,serif;
  --body:"Inter",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--body);color:var(--ink);background:var(--cream);-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;display:block}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;font:600 15px/1 var(--body);
  padding:13px 20px;border-radius:999px;border:1.5px solid transparent;text-decoration:none;cursor:pointer;
  transition:transform .12s ease, background .15s ease;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--rust);color:#fff}
.btn-primary:hover{background:var(--rust-dark)}
.btn-ghost{background:transparent;color:inherit;border-color:currentColor}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-light{background:var(--cream);color:var(--green-deep)}
.btn-light:hover{background:#fff}
.btn-sm{padding:9px 14px;font-size:14px}

/* ---------- landing ---------- */
.hero{background:radial-gradient(1200px 500px at 50% -10%, #3a7a59 0%, var(--green) 45%, var(--green-dark) 100%);color:var(--cream);
  padding:56px 16px 120px;text-align:center;position:relative;overflow:hidden}
.hero .eyebrow{font:600 12px/1 var(--body);letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.hero h1{font:600 clamp(36px,7vw,68px)/1.02 var(--display);margin:14px auto 12px;max-width:16ch;letter-spacing:-.01em}
.hero h1 em{font-style:italic;font-weight:500;color:#F6C9C2}
.hero p{max-width:560px;margin:0 auto;font-size:17px;line-height:1.55;opacity:.92}
.hero .lede-es{opacity:.75;font-size:15px;margin-top:6px}

.guides{max-width:1040px;margin:-88px auto 0;padding:0 16px;display:grid;grid-template-columns:1fr 1fr;gap:24px;position:relative}
.card{background:#fff;border-radius:24px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.card .cover{display:block;background:var(--green);aspect-ratio:612/792;overflow:hidden}
.card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card .cover:hover img{transform:scale(1.03)}
.card .body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:14px}
.card .lang{font:600 12px/1 var(--body);letter-spacing:.18em;text-transform:uppercase;color:var(--rust)}
.card h2{font:600 26px/1.1 var(--display);margin:0;color:var(--green-deep)}
.card .actions{display:flex;flex-wrap:wrap;gap:10px}
.card .actions .btn{flex:1 1 auto}
.card .btn-ghost{color:var(--green-deep)}
.card .btn-ghost:hover{background:rgba(42,96,69,.08)}

.section{max-width:1040px;margin:56px auto 0;padding:0 16px}
.section h3{font:600 28px/1.15 var(--display);color:var(--green-deep);margin:0 0 6px}
.section .sub{margin:0 0 20px;color:#6b6766}
.panel{background:#fff;border-radius:var(--radius);border:1px solid #eadfc4;padding:20px}
.share-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.linkrow{display:flex;gap:8px;align-items:center;margin:8px 0 14px}
.linkrow input,.embed textarea{flex:1;min-width:0;font:14px/1.3 ui-monospace,Consolas,monospace;padding:11px 12px;border-radius:10px;border:1px solid #d9cfb4;background:var(--cream);color:var(--ink)}
.embed textarea{width:100%;height:84px;resize:vertical}
.label{font:600 12px/1 var(--body);letter-spacing:.14em;text-transform:uppercase;color:var(--green)}
.socials{display:flex;flex-wrap:wrap;gap:8px}
.social{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;border:0;cursor:pointer;text-decoration:none}
.social:hover{background:var(--green-deep)}
.social svg{width:20px;height:20px}
.qr{display:flex;gap:16px;align-items:center;margin-top:14px}
.qr img{width:112px;height:112px;background:#fff;border-radius:12px;padding:6px;border:1px solid #eadfc4}
.qr a{font-size:14px}

footer{margin:64px 0 0;padding:28px 16px;background:var(--green-deep);color:var(--cream);text-align:center;font-size:14px;line-height:1.7}
footer a{color:var(--cream)}
footer .sig{font:italic 500 18px/1.3 var(--display)}

.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--green-deep);color:#fff;
  padding:12px 18px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:all .2s ease;z-index:99}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media (max-width:760px){
  .guides,.share-grid{grid-template-columns:1fr}
  .hero{padding:40px 16px 104px}
}

/* ---------- viewer ---------- */
body.viewer{background:#e9e3d2}
.vbar{position:sticky;top:0;z-index:20;background:var(--green-deep);color:var(--cream);box-shadow:0 2px 12px rgba(0,0,0,.2)}
.vbar-in{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:8px 12px}
.vbar .home{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0;flex:1}
.vbar .home img{width:38px;height:38px;border-radius:50%;background:#fff;flex:none;object-fit:contain;padding:3px}
.vbar .title{font:600 17px/1.15 var(--display);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vbar .pageno{font:500 13px/1 var(--body);opacity:.85;white-space:nowrap;font-variant-numeric:tabular-nums}
.vbar .tools{display:flex;gap:6px;align-items:center}
.iconbtn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:transparent;color:var(--cream);border:0;cursor:pointer;text-decoration:none}
.iconbtn:hover{background:rgba(255,255,255,.12)}
.iconbtn svg{width:20px;height:20px}
.langsw{font:700 12px/1 var(--body);letter-spacing:.1em;padding:9px 11px;border-radius:999px;border:1.5px solid rgba(253,247,229,.5);color:var(--cream);text-decoration:none}
.langsw:hover{background:rgba(255,255,255,.12)}
.progress{height:3px;background:var(--gold);width:0;transition:width .2s ease}

.pages{max-width:880px;margin:0 auto;padding:16px 10px 80px;display:flex;flex-direction:column;align-items:center;gap:14px}
.page{position:relative;width:100%;background:#fff;box-shadow:0 4px 18px rgba(30,40,30,.18);border-radius:4px;overflow:hidden;aspect-ratio:612/792}
.page canvas{position:absolute;inset:0;width:100%;height:100%}
.page .ph{position:absolute;inset:0;display:grid;place-items:center;color:#b9b2a0;font:500 14px var(--body)}
.page .links{position:absolute;inset:0}
.page .links a{position:absolute;display:block;border-radius:3px;cursor:pointer}
.page .links a:hover,.page .links a:focus-visible{background:rgba(254,155,33,.22);outline:2px solid rgba(254,155,33,.8)}
.loading{max-width:420px;margin:80px auto;text-align:center;color:var(--green-deep)}
.loading .spin{width:42px;height:42px;border-radius:50%;border:4px solid rgba(42,96,69,.2);border-top-color:var(--rust);margin:0 auto 16px;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.fab{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:15}
.fab button{width:44px;height:44px;border-radius:50%;border:0;background:var(--green-deep);color:#fff;box-shadow:var(--shadow);cursor:pointer;display:grid;place-items:center}
.fab svg{width:20px;height:20px}

.sheet{position:fixed;inset:0;background:rgba(10,25,18,.45);display:none;align-items:flex-end;justify-content:center;z-index:50}
.sheet.open{display:flex}
.sheet .box{background:#fff;width:100%;max-width:480px;border-radius:20px 20px 0 0;padding:20px 16px 28px}
@media (min-width:600px){.sheet{align-items:center}.sheet .box{border-radius:20px}}
.sheet h4{font:600 22px/1.2 var(--display);color:var(--green-deep);margin:0 0 14px}
.sheet .socials{margin-top:6px}
.sheet .close{float:right;background:none;border:0;font-size:26px;line-height:1;cursor:pointer;color:var(--ink)}

@media (max-width:560px){
  .vbar .title{font-size:15px}
  .vbar .home img{width:30px;height:30px}
  .vbar .dl-text{display:none}
  .pages{padding:10px 6px 80px;gap:10px}
}
@media print{.vbar,.fab{display:none}}
.page .pimg{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity .25s ease}
.page.ready .pimg{opacity:1}
.page{background:#f3eee0}
.vbar .home > span{min-width:0;overflow:hidden;display:block}
.vbar .title{display:block}