/* ============================================================
   angelalonsobooks.com — hoja de estilos
   Paleta tomada de las portadas: azul marino + azul cielo
   ============================================================ */

/* ---------- Fuentes locales (subset latin, woff2) ---------- */

@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/source-serif-4-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/source-serif-4-latin-400-italic.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/fonts/source-sans-3-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("/fonts/source-sans-3-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Sans 3";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/fonts/source-sans-3-latin-700-normal.woff2") format("woff2");
}

:root {
  --navy: #16346C;
  --navy-deep: #0E2450;
  --sky: #7CC8F2;
  --accent: #2F8FCB;
  --paper: #FAFBFD;
  --card: #FFFFFF;
  --ink: #232A3B;
  --ink-soft: #55607A;
  --line: #E3E9F2;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(14, 36, 80, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", Arial, sans-serif;
  font-size: 1.06rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}

h1, h2, h3 {
  font-family: "Source Serif 4", Georgia, serif;
  color: var(--navy);
  line-height: 1.2;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--sky);
  outline-offset: 2px;
  border-radius: 4px;
}

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

.wrap {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Cabecera ---------- */

.site-header {
  background: var(--navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.brand {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.3px;
}
.brand:hover { text-decoration: none; color: var(--sky); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: #E8F1FA;
  font-weight: 600;
  font-size: 0.98rem;
}
.site-nav a:hover { color: var(--sky); text-decoration: none; }
.site-nav a[aria-current="page"] {
  color: var(--sky);
  border-bottom: 2px solid var(--sky);
  padding-bottom: 2px;
}

.lang-switch {
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  font-size: 0.88rem;
}
.lang-switch:hover { background: rgba(255, 255, 255, 0.12); }

/* ---------- Hero ---------- */

.hero {
  background:
    repeating-linear-gradient(
      30deg,
      rgba(124, 200, 242, 0.10) 0 3px,
      transparent 3px 26px
    ),
    linear-gradient(160deg, var(--navy-deep), var(--navy) 65%);
  color: #fff;
  padding: 4rem 0 4.5rem;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero h1 { color: #fff; }

.hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 2.5px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--sky);
  margin-bottom: 1rem;
}

.hero p.lead {
  font-size: 1.15rem;
  color: #DCE8F5;
  max-width: 46ch;
}

.hero-photo {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 4px solid rgba(124, 200, 242, 0.35);
}

/* ---------- Botones ---------- */

.btn {
  display: inline-block;
  background: var(--sky);
  color: var(--navy-deep);
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 2px solid var(--sky);
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); background: #9AD5F5; }

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: #fff; }

.hero .btn-outline { color: #fff; border-color: rgba(255,255,255,.6); }
.hero .btn-outline:hover { background: rgba(255,255,255,.14); color: #fff; }

.btn-buy {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  transition: background 0.15s ease;
}
.btn-buy:hover { background: var(--accent); text-decoration: none; color: #fff; }

/* ---------- Secciones ---------- */

.section { padding: 3.5rem 0; }
.section-alt { background: #F0F5FA; }

.section-head {
  max-width: 60ch;
  margin-bottom: 2rem;
}

/* ---------- Libros ---------- */

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.book-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.book-card img {
  width: min(240px, 70%);
  margin: 0 auto;
  border-radius: 6px;
  box-shadow: 0 8px 22px rgba(14, 36, 80, 0.25);
}

.book-card .edition {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  color: var(--accent);
}

.buy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: auto;
}

/* ---------- Ficha de libro ---------- */

.book-detail {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 3rem;
  align-items: start;
}

.book-detail .cover img {
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.book-detail .cover { position: sticky; top: 90px; }

blockquote.tagline {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.25rem;
  font-style: italic;
  color: var(--navy);
  border-left: 4px solid var(--sky);
  margin: 1.5rem 0;
  padding: 0.4rem 0 0.4rem 1.2rem;
}

.edition-block {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}
.edition-block h3 { margin-bottom: 0.3rem; }
.edition-block p { color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- Sobre mí ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 3rem;
  align-items: start;
}
.about-grid img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------- Formulario ---------- */

.contact-form {
  max-width: 560px;
  display: grid;
  gap: 1.1rem;
}

.contact-form label {
  font-weight: 700;
  color: var(--navy);
  display: block;
  margin-bottom: 0.35rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 3px solid var(--sky);
  border-color: var(--accent);
}

.contact-form button {
  justify-self: start;
  font: inherit;
  cursor: pointer;
}

/* ---------- Pie ---------- */

.site-footer {
  background: var(--navy-deep);
  color: #C9D8EA;
  padding: 2.5rem 0;
  margin-top: 3rem;
  font-size: 0.95rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-footer a { color: var(--sky); }

.footer-links {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ---------- Responsive ---------- */

@media (max-width: 820px) {
  .hero .wrap,
  .book-detail,
  .about-grid {
    grid-template-columns: 1fr;
  }
  .hero-photo { max-width: 340px; margin: 0 auto; }
  .book-detail .cover { position: static; max-width: 280px; margin: 0 auto; }
  .about-grid img { max-width: 300px; margin: 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover { transform: none; }
}