@import "identidad.css";

/* ===== Landing / portada (hoja propia; las unidades usan main.css) ===== */
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);line-height:1.6;-webkit-font-smoothing:antialiased}
.topbar{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar .inner{max-width:1000px;margin:0 auto;padding:11px 20px;display:flex;align-items:center;gap:18px}
.brand{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--brand);font-weight:600}
.nav{margin-left:auto;display:flex;gap:3px;flex-wrap:wrap}
.nav a{font-family:var(--font-mono);font-size:11px;color:var(--muted);text-decoration:none;padding:5px 8px;border-radius:7px}
.nav a:hover{background:var(--panel);color:var(--brand)}
.wrap{max-width:900px;margin:0 auto;padding:0 20px}
.hero{position:relative;margin:26px 0 0;border-radius:18px;overflow:hidden;color:#fdf6ee;padding:54px 32px 46px;min-height:260px;
background:radial-gradient(85% 120% at 12% 8%,rgba(232,99,44,.95),transparent 55%),radial-gradient(85% 120% at 95% 96%,rgba(63,134,184,.9),transparent 55%),#140d09;box-shadow:0 32px 64px -36px rgba(20,13,9,.7)}
.hero svg.blades{position:absolute;inset:0 -6% 0 auto;width:56%;height:100%;pointer-events:none}
.spectral{position:absolute;top:-12%;right:8%;width:34%;height:124%;pointer-events:none;opacity:.8;background:linear-gradient(150deg,transparent 42%,#3f86b8 47%,#6fc0a8 51%,#e7d23a 56%,#e8632c 61%,transparent 67%);filter:blur(2px);transform:rotate(2deg);animation:shimmer 7s ease-in-out infinite}
@keyframes shimmer{0%,100%{opacity:.55}50%{opacity:.9}}
.hero-inner{position:relative;z-index:2;max-width:34ch}
.eyebrow{font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:#ffd8a8}
.hero h1{font-family:var(--font-display);font-weight:300;text-transform:uppercase;letter-spacing:.015em;font-size:clamp(28px,6vw,46px);line-height:1.04;margin:13px 0 14px;color:#fff}
.hero .lede{font-size:15.5px;color:#f1ddca;max-width:46ch;margin:0 0 22px}
.hcta{display:inline-block;background:#fff;color:var(--brand-deep);font-family:var(--font-mono);font-size:12.5px;font-weight:600;text-decoration:none;padding:10px 16px;border-radius:9px}
.hcta:hover{background:#ffe9d6}
.block{margin-top:50px}
.block . key{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600}
.block h2{font-family:var(--font-display);font-weight:600;font-size:clamp(22px,4vw,28px);margin:6px 0 0;letter-spacing:-.01em}
.block p{font-size:15.5px;max-width:64ch;margin:14px 0 0}.block p b{color:var(--brand-deep)}
.stats{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.stat{font-family:var(--font-mono);font-size:11.5px;color:var(--brand-deep);background:color-mix(in srgb,var(--accent) 15%,var(--paper));border-radius:99px;padding:6px 13px}
.callout{margin-top:16px;padding:14px 16px;background:color-mix(in srgb,var(--cold) 7%,var(--paper));border-left:3px solid var(--cold);border-radius:0 10px 10px 0;font-size:14px;max-width:64ch}
.learn{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:9px}
.learn li{position:relative;padding-left:24px;font-size:14.5px;max-width:66ch}
.learn li::before{content:"→";position:absolute;left:0;top:0;color:var(--brand);font-weight:700}
.uvol{font-family:var(--font-mono);font-size:12px;letter-spacing:.07em;text-transform:uppercase;margin:26px 0 14px;font-weight:600}
.uvol.vol1{color:var(--brand)}.uvol.vol2{color:var(--cold)}
.shelf{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:620px){.shelf{grid-template-columns:repeat(2,1fr);gap:13px}}
.book{display:flex;flex-direction:column}
.book .cover{aspect-ratio:1/1.414;border-radius:7px;background-size:cover;background-position:center;box-shadow:0 10px 26px -12px rgba(20,13,9,.45);border:1px solid rgba(0,0,0,.06);transition:.18s;position:relative}
.book.on .cover{cursor:pointer}.book.on:hover .cover{transform:translateY(-4px);box-shadow:0 18px 34px -14px rgba(194,64,27,.5)}
.book.off .cover{filter:saturate(.85);opacity:.6}
.book .ph{aspect-ratio:1/1.414;border-radius:7px;border:1px dashed var(--line);background:linear-gradient(160deg,color-mix(in srgb,var(--cold) 8%,var(--paper)),var(--paper));display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--muted);opacity:.75}
.book .ph .pn{font-family:var(--font-mono);font-size:26px;font-weight:600;color:color-mix(in srgb,var(--cold) 55%,var(--muted))}
.book .ph .pt{font-size:12px;text-align:center;padding:0 14px;line-height:1.35}
.badge{position:absolute;left:10px;top:10px;font-family:var(--font-mono);font-size:10.5px;font-weight:600;padding:4px 9px;border-radius:99px;background:var(--brand);color:#fff}
.cap{margin-top:9px;font-size:13px;line-height:1.3}.cap .n{font-family:var(--font-mono);font-weight:600;color:var(--accent);margin-right:6px}
.actions{margin-top:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.enter{background:var(--brand);color:#fff;font-family:var(--font-mono);font-size:11.5px;font-weight:600;padding:6px 11px;border-radius:8px;text-decoration:none}.enter:hover{background:var(--brand-deep)}
.webst{font-family:var(--font-mono);font-size:10.5px;color:var(--muted)}
.buy{font-family:var(--font-mono);font-size:11px;color:var(--muted)}
.buy a{color:var(--brand-deep);text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--brand) 30%,transparent)}.buy a:hover{border-color:var(--brand-deep)}
.volbuy{display:flex;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:14px 18px;margin-top:18px}
.volbuy .vt{font-size:14px}.volbuy .vt b{color:var(--brand-deep)}.volbuy .vsub{font-family:var(--font-mono);font-size:11px;color:var(--muted)}
.volbuy .vbtns{display:flex;gap:8px}.volbuy a{font-family:var(--font-mono);font-size:11.5px;font-weight:600;text-decoration:none;border-radius:8px;padding:7px 13px}
.volbuy a.print{background:var(--brand);color:#fff}.volbuy a.kindle{background:var(--paper);color:var(--brand-deep);border:1px solid var(--brand)}
.biblio{display:grid;gap:11px;margin-top:18px}
.ref{font-size:14px;max-width:66ch}.ref .t{font-weight:600}.ref .m{display:block;font-family:var(--font-mono);font-size:11px;color:var(--muted);margin-top:2px}
footer{border-top:1px solid var(--line);margin-top:50px;padding:28px 0 70px;color:var(--muted);font-size:13.5px}
footer b{color:var(--ink)}
.note{margin-top:12px;font-family:var(--font-mono);font-size:11.5px;color:var(--muted);background:color-mix(in srgb,var(--accent) 8%,var(--paper));border:1px dashed var(--accent);border-radius:10px;padding:11px 14px}
@media (prefers-reduced-motion:reduce){.spectral{animation:none}.book.on:hover .cover{transform:none}}

.buy .pend{color:var(--muted);opacity:.65}.volbuy .pend{opacity:.4;pointer-events:none;border:1px solid var(--line);color:var(--muted);background:var(--paper)}

.hero.diff{padding:0;min-height:360px;display:flex;align-items:center;justify-content:center;background-color:#1a1410;background-size:cover;background-position:center;position:relative}
.hero.diff::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,10,7,.16),rgba(15,10,7,.40));z-index:1}
.hero-plate{position:relative;z-index:2;background:rgba(18,12,8,.40);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:30px 34px;max-width:44ch;text-align:center;margin:30px 16px}
.hero-plate .lede{margin:0 auto 20px;max-width:40ch}

@media(max-width:560px){.hero-plate{padding:22px 20px}}

.cover-link{display:block;text-decoration:none;color:inherit}

/* ── Banda «dos volúmenes» bajo el hero ── */
.twovol{margin:30px 0 0}
.twovol .key{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);font-weight:600}
.twovol h2{font-family:var(--font-display);font-weight:600;font-size:clamp(22px,4vw,30px);margin:8px 0 6px}
.twovol p{max-width:64ch;margin:0}
.tv-covers{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-top:24px}
.tv-item{text-decoration:none;width:230px;display:flex;flex-direction:column}
.tv-card{position:relative;border-radius:10px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 20px 44px -28px rgba(60,20,8,.55);transition:transform .16s,box-shadow .16s}
.tv-item:hover .tv-card{transform:translateY(-5px);box-shadow:0 30px 56px -26px rgba(60,20,8,.62)}
.tv-card img{display:block;width:100%;height:auto}
.tv-badge{position:absolute;top:11px;left:11px;font-family:var(--font-mono);font-size:10.5px;font-weight:600;
  letter-spacing:.08em;padding:3px 9px;border-radius:20px;background:rgba(255,255,255,.9);color:#1a1410}
.tv-cap{margin-top:12px;font-size:13.5px;color:var(--ink);text-align:center}
.tv-cap .tv-k{display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;font-weight:600;margin-bottom:2px}
.tv-item.vol1 .tv-k{color:var(--brand)}.tv-item.vol2 .tv-k{color:var(--cold)}
.tv-cap .tv-u{color:var(--muted);font-family:var(--font-mono);font-size:11.5px}
@media(max-width:560px){.tv-item{width:44%;min-width:150px}}

/* ── Candado en unidades protegidas + enlace de muestra ── */
.book .cover-link{position:relative;display:block}
.book .lock{position:absolute;top:8px;right:8px;display:inline-flex;align-items:center;gap:4px;
  background:rgba(20,14,10,.72);color:#fff;font-family:var(--font-mono);font-size:10px;font-weight:600;
  letter-spacing:.05em;text-transform:uppercase;padding:3px 8px 3px 6px;border-radius:20px}
.book .lock svg{width:11px;height:11px;fill:currentColor}
.book .actions .sample{font-family:var(--font-mono);font-size:12px;color:var(--cold);text-decoration:none;font-weight:600;margin-left:2px}
.book .actions .sample:hover{text-decoration:underline}

/* Bloques temáticos del programa en la estantería de unidades */
.ublk{display:flex;align-items:baseline;gap:9px;flex-wrap:wrap;margin:20px 0 12px;padding-bottom:8px;
  border-bottom:1px solid var(--line)}
.ublk .bk{font-family:var(--font-mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;font-weight:600}
.ublk.vol1 .bk{color:var(--brand)}.ublk.vol2 .bk{color:var(--cold)}
.ublk .bt{font-size:14.5px;font-weight:600;color:var(--ink)}
.ublk .bd{font-size:13px;color:var(--muted);flex:1 1 22ch;min-width:0}
@media(max-width:620px){.ublk .bd{flex-basis:100%}}
/* Índice de apartados de cada unidad */
.book .toc{margin-top:7px}
.book .toc>summary{list-style:none;cursor:pointer;font-family:var(--font-mono);font-size:11.5px;
  color:var(--muted);display:inline-flex;align-items:center;gap:5px}
.book .toc>summary::-webkit-details-marker{display:none}
.book .toc>summary::before{content:"";width:0;height:0;border:4px solid transparent;
  border-left-color:currentColor;border-right-width:0;transition:transform .15s}
.book .toc[open]>summary::before{transform:rotate(90deg) translateX(-1px)}
.book .toc>summary:hover{color:var(--accent)}
.book .toc ol{margin:7px 0 0;padding-left:1.35em;font-size:12px;line-height:1.42;color:var(--muted)}
.book .toc li{margin-bottom:3px}
.book .toc li::marker{font-family:var(--font-mono);font-size:11px}
/* Alinea las filas de la estantería cuando el título de la unidad ocupa dos líneas */
.book .cap{min-height:2.6em;display:flex;align-items:flex-start;flex-wrap:wrap}