/* Hojear v4 — SaaS Editorial Premium (Estilo Matter / Readwise / Standard Ebooks) */
:root {
  --bg: #0c0b0a;
  --surface: #141311;
  --surface-hover: #1c1a18;
  --fg: #E8E4D9;
  --fg-dim: #A8A399;
  
  --hojear-terra: #D95D39;
  --hojear-terra-glow: rgba(217, 93, 57, 0.15);
  --hojear-gold: #E29D52;
  
  --border: rgba(232, 228, 217, 0.1);
  --border-strong: rgba(232, 228, 217, 0.2);
  
  --font-display: "Newsreader", "Iowan Old Style", Georgia, serif;
  --font-ui: "Archivo", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  font-family: var(--font-body); background: var(--bg); color: var(--fg);
  line-height: 1.6; min-height: 100vh; overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
/* sutil textura de papel quemado en el fondo */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: 0.15;
  background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"><filter id="noiseFilter"><feTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23noiseFilter)"/></svg>');
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(1200px, 100% - 48px); margin: 0 auto; position: relative; z-index: 2; }

/* Navegación Glass */
.hnav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(12, 11, 10, 0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.hnav-inner { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; font-style: italic; color: #fff; }
.brand img { width: 32px; height: 32px; border-radius: 6px; border: 1px solid var(--border-strong); }
.hnav-links { display: flex; gap: 32px; align-items: center; font-family: var(--font-ui); font-size: 0.9rem; font-weight: 600; color: var(--fg-dim); }
.hnav-links a:hover { color: var(--fg); }
.hnav-cta {
  background: var(--fg); color: var(--bg); padding: 8px 18px; border-radius: 100px;
  transition: 0.2s;
}
.hnav-cta:hover { background: var(--hojear-terra); color: #fff; }

/* Global UI */
.eyebrow {
  display: inline-block; font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--hojear-terra); margin-bottom: 16px; padding: 6px 12px; border-radius: 100px; border: 1px solid var(--hojear-terra-glow);
  background: rgba(217, 93, 57, 0.05);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 28px; font-family: var(--font-ui); font-weight: 600; font-size: 1rem;
  border-radius: 100px; transition: 0.2s; cursor: pointer; border: none;
}
.btn-primary { background: var(--hojear-terra); color: #fff; }
.btn-primary:hover { background: #e86a45; transform: translateY(-2px); box-shadow: 0 8px 24px var(--hojear-terra-glow); }
.btn-outline { background: rgba(255,255,255,0.03); color: var(--fg); border: 1px solid var(--border-strong); }
.btn-outline:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.3); }

/* Hero Editorial */
.hero { padding: 180px 0 100px; text-align: center; }
.hero h1 {
  font-family: var(--font-display); font-weight: 400; font-size: clamp(2.3rem, 8vw, 6rem);
  line-height: 1.05; letter-spacing: -0.02em; margin-bottom: 24px;
  color: #fff; max-width: 16ch; margin-inline: auto;
}
.hero h1 em { font-style: italic; color: var(--hojear-terra); }
.hero p.lead {
  font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--fg-dim); max-width: 600px; margin: 0 auto 40px; font-family: var(--font-ui);
}
.search-bar {
  display: flex; gap: 8px; max-width: 500px; margin: 0 auto;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 100px; padding: 6px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}
.search-bar input {
  flex: 1; background: transparent; border: none; padding: 0 20px;
  color: var(--fg); font-family: var(--font-ui); font-size: 1rem; outline: none;
}
.search-bar input::placeholder { color: var(--fg-dim); }
.search-bar button {
  background: var(--fg); color: var(--bg); border: none; border-radius: 100px;
  padding: 0 24px; font-weight: 600; font-family: var(--font-ui); cursor: pointer; transition: 0.2s;
}
.search-bar button:hover { background: var(--hojear-terra); color: #fff; }

/* App UI Showcase (Matter / Readwise vibe) */
.app-showcase { padding: 0 0 120px; }
.reader-ui {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  display: grid; grid-template-columns: 1fr 300px; overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8);
}
@media (max-width: 900px) { .reader-ui { grid-template-columns: 1fr; } }

.reader-main {
  background: #F4F1EA; color: #1A1918; padding: 60px 80px;
  position: relative;
}
@media (max-width: 600px) { .reader-main { padding: 40px 24px; } }
.reader-top { display: flex; justify-content: space-between; font-family: var(--font-ui); font-size: 0.8rem; color: #8C8880; margin-bottom: 40px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }
.reader-content h2 { font-family: var(--font-display); font-size: 2.5rem; font-weight: 600; margin-bottom: 24px; line-height: 1.1; }
.reader-content p { font-family: var(--font-display); font-size: 1.25rem; line-height: 1.7; margin-bottom: 20px; }
.highlight { background: rgba(217, 93, 57, 0.15); border-bottom: 2px solid var(--hojear-terra); padding: 0 2px; }

.reader-sidebar {
  background: var(--bg); border-left: 1px solid var(--border); padding: 32px 24px;
}
.sidebar-module { margin-bottom: 32px; }
.sidebar-module h4 { font-family: var(--font-ui); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--fg-dim); margin-bottom: 16px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.note-card { background: var(--surface-hover); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 16px; font-family: var(--font-body); font-size: 0.9rem; color: var(--fg); border-left: 3px solid var(--hojear-gold); }
.note-card strong { display: block; color: var(--hojear-gold); margin-bottom: 4px; font-family: var(--font-ui); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* Bento Grids (Standard Ebooks Classic Display) */
.library { padding: 120px 0; border-top: 1px solid var(--border); }
.library-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 32px; margin-top: 60px;
}
.book-card {
  display: flex; flex-direction: column; gap: 16px; transition: 0.3s;
}
.book-card:hover { transform: translateY(-6px); }
.book-cover {
  aspect-ratio: 2 / 3; background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); position: relative; overflow: hidden;
  display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 24px;
}
.book-cover::after {
  content: ""; position: absolute; inset: 0; box-shadow: inset 4px 0 12px rgba(0,0,0,0.4); pointer-events: none;
}
.book-cover.chile { border: 4px solid var(--surface-hover); border-top-color: var(--hojear-terra); }
.book-cover.universal { border: 4px solid var(--surface-hover); border-top-color: var(--hojear-gold); }
.cover-author { font-family: var(--font-ui); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.15em; color: var(--fg-dim); margin-bottom: 12px; }
.cover-title { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; color: #fff; line-height: 1.1; font-style: italic; }

.book-info h3 { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 4px; color: var(--fg); }
.book-info p { font-family: var(--font-ui); font-size: 0.85rem; color: var(--fg-dim); }
.book-tags { display: flex; gap: 6px; margin-top: 8px; }
.book-tags span { font-family: var(--font-mono); font-size: 0.65rem; text-transform: uppercase; background: rgba(255,255,255,0.05); padding: 2px 6px; border-radius: 4px; color: var(--fg-dim); }

/* Features (Perlego Academic Vibe) */
.features { padding: 120px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.features-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; margin-top: 60px; }
@media (max-width: 900px) { .features-grid { grid-template-columns: 1fr; } }
.feat-card {
  padding: 40px; border: 1px solid var(--border); background: var(--bg); border-radius: var(--radius-md);
}
.feat-card h3 { font-family: var(--font-display); font-size: 1.8rem; margin-bottom: 16px; color: #fff; }
.feat-card p { color: var(--fg-dim); font-size: 1.05rem; }

/* Pricing */
.pricing { padding: 120px 0; text-align: center; }
.plus-card {
  max-width: 600px; margin: 40px auto 0; padding: 56px; border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--surface), var(--bg)); border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5); position: relative; overflow: hidden;
}
.plus-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--hojear-terra);
}
.plus-card h3 { font-family: var(--font-display); font-size: 2.5rem; margin-bottom: 16px; }
.plus-card .price { font-family: var(--font-ui); font-size: 1.2rem; color: var(--hojear-gold); margin-bottom: 24px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.plus-card p { color: var(--fg-dim); margin-bottom: 32px; font-size: 1.1rem; }

/* Footer */
.foot { border-top: 1px solid var(--border); padding: 40px 0; display: flex; justify-content: space-between; color: var(--fg-dim); font-family: var(--font-ui); font-size: 0.9rem; }
.foot a:hover { color: var(--fg); }



.sec-title { font-family: var(--font-display); font-size: 2.5rem; color: #fff; margin-bottom: 16px; }
.sec-lead { color: var(--fg-dim); font-size: 1.1rem; max-width: 600px; }
.tool-list { list-style: none; display: flex; flex-direction: column; gap: 12px; color: var(--fg-dim); font-size: 0.9rem; font-family: var(--font-ui); }
.center-cta { text-align: center; margin-top: 60px; }
.foot-links { display: flex; gap: 16px; }

.hnav-toggle {
  display: none; appearance: none; background: transparent; border: 0; width: 44px; height: 44px;
  padding: 10px; cursor: pointer; flex-direction: column; justify-content: center; gap: 6px;
}
.hnav-toggle span { display: block; height: 2px; background: var(--fg); border-radius: 1px; }

.seguir { padding: 0 0 72px; }
.seguir-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-top: 24px; }
.seguir-card {
  display: flex; flex-direction: column; gap: 8px; padding: 20px; border: 1px solid var(--border);
  background: var(--surface); border-radius: var(--radius-sm);
}
.seguir-card strong { font-family: var(--font-display); font-size: 1.25rem; font-style: italic; }
.seguir-card span { font-family: var(--font-mono); font-size: 0.72rem; color: var(--fg-dim); letter-spacing: 0.06em; text-transform: uppercase; }

.paths { padding: 0 0 120px; }
.paths-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 40px; }
.path-card {
  padding: 28px; border: 1px solid var(--border); background: var(--surface); border-radius: var(--radius-md);
  transition: 0.2s;
}
.path-card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.path-card h3 { font-family: var(--font-display); font-size: 1.6rem; color: #fff; margin-bottom: 10px; }
.path-card p { color: var(--fg-dim); }

@media (max-width: 768px) {
  .hnav-toggle { display: flex; }
  .hnav-inner { padding: 0 16px; }
  .hnav-links {
    display: none; position: absolute; left: 0; right: 0; top: 72px;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(12, 11, 10, 0.96); border-bottom: 1px solid var(--border); padding: 8px 16px 20px;
  }
  .hnav-links.open { display: flex; }
  .hnav-links a { padding: 14px 8px; }
  .hnav-links a.hnav-cta { margin-top: 8px; text-align: center; }
  .hero { padding: 120px 0 60px; }
  .feat-card { padding: 24px; }
  .paths-grid { grid-template-columns: 1fr; }
  .foot { flex-direction: column; gap: 12px; }
}