/* ══════════════════════════════════════════════════
   yahweh.study — paleta tomada de la portada del libro
   navy nocturno · oro cálido · marfil · piedra
   ══════════════════════════════════════════════════ */

:root {
  --navy-900:#050b14;
  --navy-800:#0a1626;
  --navy-700:#102338;
  --navy-600:#1a3450;

  --gold-300:#f2e2b4;
  --gold-400:#e3c274;
  --gold-500:#c9962e;
  --gold-600:#a3761d;

  --cream:#f7f2e7;
  --cream-dim:#ded5c2;
  --stone:#cbb894;
  --ink:#1c1a15;
  --ink-soft:#4a453a;

  --serif:"Cinzel", "Trajan Pro", Georgia, serif;
  --serif-text:"Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans:"Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --wrap:1140px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin:0;
  font-family:var(--sans);
  font-weight:300;
  color:var(--ink);
  background:var(--cream);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

img { max-width:100%; height:auto; display:block; }

.sr {
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0;
}

.skip {
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--gold-500); color:var(--navy-900);
  padding:.7rem 1.2rem; font-weight:700;
}
.skip:focus { left:0; }

.wrap { width:100%; max-width:var(--wrap); margin:0 auto; padding:0 1.5rem; }
.wrap--narrow { max-width:760px; }
.center { text-align:center; }


/* ═══════════ HERO ═══════════ */

.hero {
  position:relative;
  background:var(--navy-900);
  overflow:hidden;
  padding:clamp(3rem, 7vw, 6rem) 0 clamp(3.5rem, 8vw, 6.5rem);
}

/* cielo del atardecer de la portada: navy arriba, brasa dorada abajo-derecha */
.hero__sky {
  position:absolute; inset:0;
  background:
    radial-gradient(90% 70% at 78% 88%, rgba(201,150,46,.42) 0%, rgba(201,150,46,.10) 42%, transparent 68%),
    radial-gradient(70% 55% at 20% 8%, rgba(26,52,80,.75) 0%, transparent 65%),
    linear-gradient(178deg, #050b14 0%, #0a1626 45%, #14263c 78%, #23334a 100%);
}
.hero__sky::after {
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(circle at 50% 45%, transparent 55%, rgba(0,0,0,.55) 100%);
}

.hero__inner {
  position:relative;
  width:100%; max-width:var(--wrap);
  margin:0 auto; padding:0 1.5rem;
  display:grid;
  grid-template-columns:minmax(0, 380px) minmax(0, 1fr);
  gap:clamp(2rem, 5vw, 4.5rem);
  align-items:center;
}


/* ─── portada ─── */

.cover { margin:0; position:relative; }

.cover img {
  width:100%;
  border-radius:3px;
  border:1px solid rgba(201,150,46,.45);
  box-shadow:
    0 2px 4px rgba(0,0,0,.5),
    0 18px 50px rgba(0,0,0,.65),
    0 0 70px rgba(201,150,46,.18);
}

/* si aún no se ha subido el JPG, se dibuja esta portada tipográfica */
.cover__fallback[hidden] { display:none; }
.cover__fallback {
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:.9rem;
  aspect-ratio:2/3;
  padding:2rem 1.5rem;
  text-align:center;
  border:1px solid rgba(201,150,46,.45);
  border-radius:3px;
  background:
    radial-gradient(75% 55% at 50% 82%, rgba(201,150,46,.30), transparent 70%),
    linear-gradient(170deg, #050b14, #102338 65%, #1d2f47);
  box-shadow:0 18px 50px rgba(0,0,0,.65);
}
.cover__kicker {
  font-family:var(--sans); font-size:.6rem; font-weight:400;
  letter-spacing:.22em; text-transform:uppercase; color:var(--cream-dim);
}
.cover__title {
  font-family:var(--serif); font-weight:700;
  font-size:clamp(2.6rem, 9vw, 3.6rem); line-height:1;
  letter-spacing:.03em;
  background:linear-gradient(178deg, #f7ecc4 0%, #e3c274 38%, #c9962e 68%, #8f6516 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.cover__rule { width:70%; height:1px; background:linear-gradient(90deg, transparent, var(--gold-500), transparent); }
.cover__sub {
  font-family:var(--serif); font-weight:600;
  font-size:clamp(1.1rem, 3.6vw, 1.5rem); line-height:1.25;
  letter-spacing:.05em; color:var(--cream);
}
.cover__tetra {
  font-family:var(--serif-text); font-size:2.6rem; color:var(--stone);
  direction:rtl; margin-top:.6rem; opacity:.85;
}
.cover__author {
  font-family:var(--serif); font-size:.78rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--cream); margin-top:auto;
}


/* ─── copy del hero ─── */

.kicker {
  font-size:.72rem; font-weight:400; letter-spacing:.24em;
  text-transform:uppercase; color:var(--gold-400);
  margin:0 0 1.4rem;
}
.kicker i { font-style:normal; color:var(--gold-600); margin:0 .15em; }

h1 {
  font-family:var(--serif); font-weight:700;
  font-size:clamp(3rem, 8vw, 5.2rem); line-height:.95;
  letter-spacing:.02em;
  margin:0 0 1.2rem;
  background:linear-gradient(176deg, #fbf3d8 0%, #e9cd8a 35%, #c9962e 70%, #9a6d18 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  text-shadow:0 0 60px rgba(201,150,46,.25);
}
.h1__sub {
  display:block;
  font-family:var(--serif); font-weight:400;
  font-size:clamp(1.15rem, 3vw, 1.85rem); line-height:1.2;
  letter-spacing:.12em; text-transform:uppercase;
  margin-top:.85rem;
  background:none; color:var(--cream);
  -webkit-text-fill-color:var(--cream);
}

.lede {
  font-family:var(--serif-text);
  font-size:clamp(1.1rem, 2.2vw, 1.35rem);
  line-height:1.6; color:var(--cream-dim);
  max-width:34em; margin:0;
}

.ornament {
  display:flex; align-items:center; gap:1rem;
  color:var(--gold-500); font-size:.85rem;
  margin:2rem 0;
}
.ornament span { flex:1; height:1px; background:linear-gradient(90deg, transparent, rgba(201,150,46,.55), transparent); }
.ornament--dark { color:var(--gold-600); margin:1.2rem auto 2.8rem; max-width:340px; }
.ornament--dark span { background:linear-gradient(90deg, transparent, rgba(163,118,29,.5), transparent); }


/* ═══════════ BOTONES DE ACCIÓN ═══════════ */

.actions {
  display:flex; flex-wrap:wrap; gap:.9rem;
  margin:0 0 2rem;
}
.actions--center { justify-content:center; }

.btn-solid, .btn-line {
  display:inline-flex; flex-direction:column; align-items:center;
  font-family:var(--serif); font-weight:600;
  font-size:.88rem; letter-spacing:.13em; text-transform:uppercase;
  text-decoration:none; border-radius:3px;
  padding:.95rem 1.9rem;
  transition:transform .15s, box-shadow .2s, filter .2s, background .2s, color .2s;
}
.btn-solid {
  color:#2a1e05;
  background:linear-gradient(178deg,#f0d795 0%,#d9a93f 45%,#b8871f 100%);
  box-shadow:0 4px 18px rgba(201,150,46,.25);
}
.btn-solid:hover { filter:brightness(1.08); transform:translateY(-1px); box-shadow:0 6px 26px rgba(201,150,46,.4); }

.btn-line {
  color:var(--gold-300);
  border:1px solid var(--gold-500);
  background:transparent;
}
.btn-line:hover { background:var(--gold-500); color:var(--navy-900); }
.btn-line span {
  display:block; font-family:var(--sans); font-weight:300;
  font-size:.66rem; letter-spacing:.1em; text-transform:none;
  opacity:.7; margin-top:.25rem;
}
.btn-line:hover span { opacity:.85; }

.btn-ghost--alt { border-color:rgba(203,184,148,.45); color:var(--cream-dim); }
.btn-ghost--alt:hover { background:rgba(203,184,148,.15); color:var(--cream); }


/* ═══════════ FORMULARIO ═══════════ */

.capture {
  background:rgba(255,255,255,.035);
  border:1px solid rgba(201,150,46,.30);
  border-radius:4px;
  padding:clamp(1.5rem, 3vw, 2.2rem);
  backdrop-filter:blur(6px);
  max-width:520px;
}

.capture__title {
  font-family:var(--serif); font-weight:600;
  font-size:1.15rem; letter-spacing:.06em;
  color:var(--gold-300); margin:0 0 .35rem;
}
.capture__hint {
  font-size:.9rem; color:var(--cream-dim); opacity:.85;
  margin:0 0 1.3rem;
}

.capture input[type="text"],
.capture input[type="email"] {
  width:100%;
  font-family:var(--sans); font-size:1rem; font-weight:300;
  color:var(--cream);
  background:rgba(5,11,20,.55);
  border:1px solid rgba(203,184,148,.28);
  border-radius:3px;
  padding:.85rem 1rem;
  margin-bottom:.75rem;
  transition:border-color .2s, box-shadow .2s;
}
.capture input::placeholder { color:rgba(222,213,194,.45); }
.capture input:focus {
  outline:none;
  border-color:var(--gold-500);
  box-shadow:0 0 0 3px rgba(201,150,46,.18);
}

.hp { position:absolute; left:-9999px; opacity:0; height:0; overflow:hidden; }

.capture button {
  width:100%;
  font-family:var(--serif); font-weight:600;
  font-size:.95rem; letter-spacing:.14em; text-transform:uppercase;
  color:#2a1e05;
  background:linear-gradient(178deg, #f0d795 0%, #d9a93f 45%, #b8871f 100%);
  border:none; border-radius:3px;
  padding:1rem 1.2rem;
  margin-top:.5rem;
  cursor:pointer;
  box-shadow:0 4px 18px rgba(201,150,46,.25);
  transition:transform .15s, box-shadow .2s, filter .2s;
}
.capture button:hover:not(:disabled) {
  filter:brightness(1.08);
  box-shadow:0 6px 26px rgba(201,150,46,.4);
  transform:translateY(-1px);
}
.capture button:disabled { opacity:.55; cursor:not-allowed; }

.capture__msg {
  font-size:.92rem; margin:.9rem 0 0; min-height:1.2em;
}
.capture__msg.ok  { color:var(--gold-300); }
.capture__msg.err { color:#f0a58f; }

.capture__legal {
  font-size:.75rem; color:var(--cream-dim);
  opacity:.55; margin:.8rem 0 0;
}


/* ═══════════ SECCIONES CLARAS ═══════════ */

.section { padding:clamp(3.5rem, 8vw, 6rem) 0; }

.h2 {
  font-family:var(--serif); font-weight:600;
  font-size:clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing:.05em; color:var(--navy-800);
  text-align:center; margin:0;
}
.h2--light { color:var(--gold-300); }

.pillars {
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(230px, 1fr));
  gap:2rem;
}
.pillar {
  border-top:2px solid var(--gold-500);
  padding-top:1.4rem;
}
.pillar__num {
  display:block;
  font-family:var(--serif); font-weight:700;
  font-size:.85rem; letter-spacing:.2em;
  color:var(--gold-600); margin-bottom:.5rem;
}
.pillar h3 {
  font-family:var(--serif); font-weight:600;
  font-size:1.2rem; letter-spacing:.04em;
  color:var(--navy-800); margin:0 0 .6rem;
}
.pillar p {
  font-family:var(--serif-text); font-size:1.08rem;
  color:var(--ink-soft); margin:0;
}


/* ─── franja de piedra ─── */

.section--stone {
  background:
    radial-gradient(70% 90% at 50% 0%, rgba(201,150,46,.10), transparent 70%),
    linear-gradient(180deg, #ece3d0, #e2d6bd);
  border-top:1px solid rgba(163,118,29,.25);
  border-bottom:1px solid rgba(163,118,29,.25);
}
.tetra {
  font-family:var(--serif-text);
  font-size:clamp(3.5rem, 12vw, 6rem);
  line-height:1; direction:rtl;
  margin:0 0 1.5rem;
  background:linear-gradient(176deg, #a3761d, #6b4a0d);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.verse {
  font-family:var(--serif-text); font-style:italic;
  font-size:clamp(1.2rem, 2.6vw, 1.55rem);
  line-height:1.55; color:var(--ink); margin:0 0 .8rem;
}
.verse__ref {
  font-family:var(--serif); font-size:.75rem;
  letter-spacing:.2em; text-transform:uppercase;
  color:var(--gold-600); margin:0;
}


/* ─── autor ─── */

.author-name {
  font-family:var(--serif); font-weight:600;
  font-size:1.35rem; letter-spacing:.12em;
  text-transform:uppercase; text-align:center;
  color:var(--navy-800); margin:0 0 1.2rem;
}
.author-bio {
  font-family:var(--serif-text); font-size:1.15rem;
  color:var(--ink-soft); text-align:center; margin:0;
}


/* ─── CTA final ─── */

.section--cta {
  background:
    radial-gradient(80% 100% at 50% 100%, rgba(201,150,46,.28), transparent 70%),
    linear-gradient(180deg, #050b14, #102338);
}
.cta__lede {
  font-family:var(--serif-text);
  font-size:clamp(1.1rem, 2.2vw, 1.3rem);
  color:var(--cream-dim);
  max-width:34em; margin:1.5rem auto 2rem;
}
.btn-ghost {
  display:inline-block;
  font-family:var(--serif); font-weight:600;
  font-size:.9rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--gold-300); text-decoration:none;
  border:1px solid var(--gold-500);
  border-radius:3px;
  padding:.95rem 2.4rem;
  transition:background .2s, color .2s;
}
.btn-ghost:hover { background:var(--gold-500); color:var(--navy-900); }


/* ═══════════ FOOTER ═══════════ */

.foot {
  background:var(--navy-900);
  border-top:1px solid rgba(201,150,46,.22);
  padding:3rem 0 2.5rem;
  text-align:center;
}
.foot__brand {
  font-family:var(--serif); font-weight:700;
  font-size:1.3rem; letter-spacing:.06em;
  color:var(--gold-400); margin:0 0 .6rem;
}
.foot__brand span { color:var(--cream-dim); font-weight:400; opacity:.6; }
.foot__pub { font-size:.9rem; color:var(--cream-dim); margin:0 0 .4rem; }
.foot__pub strong { color:var(--gold-300); font-weight:400; }
.foot__legal { font-size:.75rem; color:var(--cream-dim); opacity:.45; margin:0; }


/* ═══════════ RESPONSIVE ═══════════ */

@media (max-width: 860px) {
  .hero__inner { grid-template-columns:1fr; }
  .cover { max-width:280px; margin:0 auto; }
  .capture { max-width:none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation:none !important; transition:none !important; }
}