/* ==========================================================================
   Mi Piso Verde — Sistema de diseño
   Arquetipo: Editorial Light Cream (revista de plantas)
   ========================================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, picture, video, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---------- Tokens (Editorial Light Cream + verde botánico) ---------- */
:root {
  --bg: #f4efe6;
  --bg-2: #e8dfd0;
  --paper: #ffffff;
  --ink: #1a1a1a;
  --ink-soft: #2a2a2a;
  --ink-mute: #6b6b6b;
  --line: rgba(26, 26, 26, 0.12);
  --line-strong: rgba(26, 26, 26, 0.22);

  --accent: #4a5d3a;       /* verde botánico mate */
  --accent-2: #b85c3a;     /* terracota cálido */
  --accent-soft: #d4c4a0;  /* arena */
  --success: #5a7c47;

  --font-display: 'Fraunces', 'Times New Roman', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --step--1: clamp(0.83rem, 0.81rem + 0.10vw, 0.89rem);
  --step-0:  clamp(1.00rem, 0.96rem + 0.20vw, 1.13rem);
  --step-1:  clamp(1.20rem, 1.14rem + 0.32vw, 1.42rem);
  --step-2:  clamp(1.44rem, 1.34rem + 0.50vw, 1.78rem);
  --step-3:  clamp(1.73rem, 1.58rem + 0.76vw, 2.23rem);
  --step-4:  clamp(2.07rem, 1.85rem + 1.14vw, 2.79rem);
  --step-5:  clamp(2.49rem, 2.16rem + 1.70vw, 3.49rem);
  --step-6:  clamp(2.99rem, 2.51rem + 2.46vw, 4.36rem);

  --s-1: 0.5rem; --s-2: 0.75rem; --s-3: 1rem; --s-4: 1.5rem;
  --s-5: 2rem;   --s-6: 3rem;    --s-7: 4rem; --s-8: 6rem;

  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(26,26,26,0.06);
  --shadow-md: 0 8px 28px rgba(26,26,26,0.10);
  --shadow-lg: 0 24px 56px rgba(26,26,26,0.16);

  --max-w: 1200px;
  --max-w-narrow: 720px;
  --nav-h: 76px;
}

/* ---------- Tipografía editorial ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink);
}
h1 {
  font-size: var(--step-6);
  font-weight: 400;
  letter-spacing: -0.025em;
}
h1 em { font-style: italic; font-weight: 400; color: var(--accent); }
h2 { font-size: var(--step-4); font-weight: 400; }
h2 em { font-style: italic; color: var(--accent); }
h3 { font-size: var(--step-2); font-weight: 500; }
h4 { font-size: var(--step-1); font-family: var(--font-body); font-weight: 600; }
p { font-size: var(--step-0); margin-bottom: var(--s-3); color: var(--ink-soft); }
strong { color: var(--ink); font-weight: 600; }
em { font-style: italic; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--s-3);
}

/* ---------- Layout helpers ---------- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--s-4); }
.container-narrow { max-width: var(--max-w-narrow); margin: 0 auto; padding: 0 var(--s-4); }
.section { padding: var(--s-8) 0; }
.section-sm { padding: var(--s-7) 0; }

/* ---------- Navegación ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(244, 239, 230, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s ease;
}
.nav-inner {
  width: 100%; max-width: var(--max-w);
  margin: 0 auto; padding: 0 var(--s-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-4);
}
.brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 500;
  color: var(--ink); letter-spacing: -0.01em;
}
.brand em { font-style: italic; color: var(--accent); font-weight: 400; }
.brand-mark {
  width: 36px; height: 36px;
  background: var(--accent);
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff;
}
.brand-mark svg { width: 22px; height: 22px; }

.nav-links { display: flex; align-items: center; gap: var(--s-5); }
.nav-links a {
  font-size: 0.92rem; font-weight: 500; color: var(--ink-soft);
  position: relative; padding: 6px 2px;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px; background: var(--accent);
  transition: width 0.25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  color: var(--ink);
}
.nav-toggle svg { width: 24px; height: 24px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px;
  font-weight: 500; font-size: 0.96rem;
  border-radius: 999px;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--ink); color: #fff;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line-strong);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 18px 36px; font-size: 1.02rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + var(--s-7)) 0 var(--s-7);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: var(--s-6);
  align-items: center;
}
.hero h1 {
  max-width: 14ch;
  margin-bottom: var(--s-4);
}
.hero-sub {
  font-size: var(--step-1);
  max-width: 48ch;
  color: var(--ink-soft);
  margin-bottom: var(--s-5);
  font-weight: 300;
  line-height: 1.55;
}
.hero-cta-row { display: flex; gap: var(--s-3); flex-wrap: wrap; }

.hero-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(135deg, #c8d4b4 0%, #a5b88e 50%, #7a9268 100%);
  box-shadow: var(--shadow-md);
}
.hero-visual::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(at 30% 70%, rgba(255,255,255,0.3) 0%, transparent 50%),
    radial-gradient(at 70% 20%, rgba(74,93,58,0.4) 0%, transparent 60%);
  mix-blend-mode: overlay;
}
.hero-visual svg {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 60%; height: 60%;
  opacity: 0.92;
  filter: drop-shadow(0 8px 16px rgba(0,0,0,0.18));
}

.hero-stats {
  display: flex;
  gap: var(--s-5);
  margin-top: var(--s-5);
  padding-top: var(--s-4);
  border-top: 1px solid var(--line);
}
.hero-stat {
  font-family: var(--font-display);
}
.hero-stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-family: var(--font-body);
  font-size: 0.86rem;
  color: var(--ink-mute);
}

/* ---------- Cards de feature ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-5);
  margin-top: var(--s-6);
}
.feature {
  padding: var(--s-5);
  background: var(--paper);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  transition: all 0.3s ease;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: var(--line-strong); }
.feature-icon {
  width: 56px; height: 56px;
  background: var(--bg-2);
  border-radius: 50%;
  display: grid; place-items: center;
  margin-bottom: var(--s-3);
  color: var(--accent);
}
.feature-icon svg { width: 28px; height: 28px; }
.feature h3 { font-size: 1.3rem; margin-bottom: var(--s-2); }
.feature p { font-size: 0.95rem; color: var(--ink-mute); margin: 0; }

/* ---------- Tarjetas de artículo (post cards) ---------- */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-5);
  margin-top: var(--s-6);
}
.post-card {
  background: var(--paper);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: all 0.35s ease;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.post-card-img {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #c8d4b4 0%, #7a9268 100%);
  position: relative;
}
.post-card-img.var-2 { background: linear-gradient(135deg, #d4c4a0 0%, #a89770 100%); }
.post-card-img.var-3 { background: linear-gradient(135deg, #b8c89e 0%, #5a7c47 100%); }
.post-card-img.var-4 { background: linear-gradient(135deg, #e0d4b8 0%, #b8a07e 100%); }
.post-card-img.var-5 { background: linear-gradient(135deg, #a8b890 0%, #4a5d3a 100%); }
.post-card-img.var-6 { background: linear-gradient(135deg, #d8b896 0%, #b85c3a 100%); }
.post-card-img svg {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 50%; height: 50%;
  color: rgba(255,255,255,0.85);
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}
.post-card-body { padding: var(--s-4); }
.post-card-meta {
  display: flex; gap: var(--s-3); flex-wrap: wrap;
  font-size: 0.78rem; color: var(--ink-mute);
  margin-bottom: var(--s-2);
  font-family: var(--font-body);
}
.post-card-meta .cat {
  color: var(--accent); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
}
.post-card h3 {
  font-size: 1.3rem; line-height: 1.25;
  margin-bottom: var(--s-2);
  font-family: var(--font-display);
}
.post-card p {
  font-size: 0.92rem; color: var(--ink-mute); margin: 0;
  display: -webkit-box; -webkit-line-clamp: 2; line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}

/* ---------- FAQ accordion ---------- */
.faq-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  margin-bottom: var(--s-2);
  overflow: hidden;
}
.faq-item[open] { border-color: var(--line-strong); }
.faq-item summary {
  padding: var(--s-4);
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: var(--s-3);
  font-weight: 600; color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; flex-shrink: 0;
  font-size: 1.6rem; color: var(--accent);
  font-weight: 300; line-height: 1;
  transition: transform 0.25s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-content { padding: 0 var(--s-4) var(--s-4); color: var(--ink-soft); }

/* ---------- CTA / newsletter section ---------- */
.cta-section {
  position: relative;
  padding: var(--s-8) 0;
  background: var(--accent);
  color: #fff;
  margin: var(--s-7) auto 0;
  text-align: center;
}
.cta-section h2 { color: #fff; max-width: 18ch; margin: 0 auto var(--s-3); }
.cta-section p { color: rgba(255,255,255,0.85); max-width: 52ch; margin: 0 auto var(--s-4); }
.cta-section .btn-primary {
  background: #fff; color: var(--accent);
}
.cta-section .btn-primary:hover { background: var(--bg); }

/* ---------- Marquee ticker ---------- */
.ticker {
  background: var(--ink);
  color: var(--bg);
  padding: var(--s-3) 0;
  overflow: hidden;
  white-space: nowrap;
}
.ticker-track {
  display: inline-flex;
  gap: var(--s-5);
  animation: tickerMove 40s linear infinite;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  padding-right: var(--s-5);
}
.ticker-track span::after { content: ' ·'; color: var(--accent); margin-left: var(--s-5); }
@keyframes tickerMove {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding: var(--s-7) 0 var(--s-5);
  margin-top: var(--s-8);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--s-5);
  margin-bottom: var(--s-5);
}
.footer-brand {
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 500;
  margin-bottom: var(--s-3);
}
.footer-brand em { font-style: italic; color: var(--accent-soft); font-weight: 400; }
.footer-tag { font-size: 0.92rem; max-width: 28ch; line-height: 1.6; }
.footer-col h4 {
  color: #fff; font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 0.14em;
  margin-bottom: var(--s-3); font-family: var(--font-body); font-weight: 600;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 0.92rem; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  padding-top: var(--s-4);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-3);
  font-size: 0.84rem;
}

/* ---------- Artículo (blog post) ---------- */
.article-hero {
  padding: calc(var(--nav-h) + var(--s-6)) 0 var(--s-5);
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.article-hero .breadcrumb {
  font-size: 0.84rem; color: var(--ink-mute);
  margin-bottom: var(--s-3);
  font-family: var(--font-body);
}
.article-hero .breadcrumb a:hover { color: var(--accent); }
.article-hero h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  max-width: 22ch;
  margin-bottom: var(--s-4);
  font-weight: 400;
}
.article-meta {
  display: flex; align-items: center; gap: var(--s-3); flex-wrap: wrap;
  font-size: 0.9rem; color: var(--ink-mute);
}
.article-author {
  display: flex; align-items: center; gap: 10px;
  font-weight: 500; color: var(--ink-soft);
}
.author-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: grid; place-items: center;
  color: #fff; font-weight: 600; font-size: 0.82rem;
  font-family: var(--font-body);
}

.article-body {
  padding: var(--s-6) 0 var(--s-7);
}
.article-body > .container-narrow > * {
  margin-bottom: var(--s-3);
}
.article-body h2 {
  margin-top: var(--s-6);
  margin-bottom: var(--s-3);
  font-size: var(--step-3);
  font-weight: 500;
}
.article-body h2 em { color: var(--accent); }
.article-body h3 {
  margin-top: var(--s-5);
  margin-bottom: var(--s-2);
  font-size: var(--step-1);
  font-weight: 500;
}
.article-body p {
  line-height: 1.75;
  font-size: 1.07rem;
  color: #2a2a2a;
}
.article-body p strong { color: var(--ink); }
.article-body ul, .article-body ol {
  padding-left: var(--s-4);
  margin-bottom: var(--s-4);
}
.article-body ul li {
  list-style: disc;
  margin-bottom: 8px;
  line-height: 1.7;
  color: #2a2a2a;
}
.article-body ol li {
  list-style: decimal;
  margin-bottom: 8px;
  line-height: 1.7;
  color: #2a2a2a;
}
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--accent-2); }
.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding: var(--s-3) var(--s-4);
  margin: var(--s-4) 0;
  background: var(--bg-2);
  font-style: italic;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ink);
}
.article-body table {
  width: 100%; border-collapse: collapse;
  margin: var(--s-4) 0;
  font-size: 0.94rem;
}
.article-body table th, .article-body table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.article-body table th {
  background: var(--bg-2);
  font-weight: 600;
  font-family: var(--font-body);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.callout {
  padding: var(--s-4);
  border-radius: var(--r-md);
  margin: var(--s-4) 0;
}
.callout-info { background: var(--bg-2); border-left: 3px solid var(--accent); }
.callout-warn { background: #f5e6d3; border-left: 3px solid var(--accent-2); }
.callout-tip { background: #dde4d0; border-left: 3px solid var(--success); }
.callout h4 { margin-bottom: 6px; font-family: var(--font-body); }
.callout p { margin: 0; }

.toc {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: var(--s-4);
  margin-bottom: var(--s-5);
}
.toc-title {
  font-size: 0.78rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--ink-mute);
  margin-bottom: var(--s-2);
  font-family: var(--font-body);
}
.toc ol { padding-left: 20px; }
.toc li { font-size: 0.95rem; margin-bottom: 6px; list-style: decimal; color: var(--ink-soft); }
.toc a:hover { color: var(--accent); }

.author-box {
  display: flex; gap: var(--s-3); align-items: flex-start;
  padding: var(--s-4);
  background: var(--bg-2);
  border-radius: var(--r-md);
  margin: var(--s-5) 0;
}
.author-box .author-avatar { width: 56px; height: 56px; font-size: 1rem; }
.author-box h4 { margin-bottom: 4px; font-family: var(--font-body); }
.author-box p { font-size: 0.92rem; margin: 0; color: var(--ink-mute); }

.disclaimer-box {
  font-size: 0.86rem;
  color: var(--ink-mute);
  background: var(--bg-2);
  padding: var(--s-3);
  border-radius: var(--r-md);
  border-left: 3px solid var(--accent);
  margin-top: var(--s-5);
  line-height: 1.6;
}

.related-posts {
  margin-top: var(--s-6);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line);
}
.related-posts h2 { font-size: var(--step-2); margin-bottom: var(--s-4); font-weight: 500; }

/* ---------- Páginas legales ---------- */
.legal-page {
  padding: calc(var(--nav-h) + var(--s-6)) 0 var(--s-7);
}
.legal-page h1 { font-size: var(--step-5); margin-bottom: var(--s-3); font-weight: 400; }
.legal-page .updated { color: var(--ink-mute); font-size: 0.9rem; margin-bottom: var(--s-5); }
.legal-page h2 { font-size: var(--step-2); margin: var(--s-5) 0 var(--s-2); font-weight: 500; }
.legal-page h3 { font-size: var(--step-1); margin: var(--s-4) 0 var(--s-2); font-weight: 500; }
.legal-page p, .legal-page li { font-size: 1rem; line-height: 1.7; color: var(--ink-soft); }
.legal-page ul { padding-left: var(--s-4); margin-bottom: var(--s-3); }
.legal-page ul li { list-style: disc; margin-bottom: 6px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; margin: 0 auto; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .section { padding: var(--s-7) 0; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(244,239,230,0.98);
    backdrop-filter: blur(14px);
    padding: var(--s-3) var(--s-4);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: none; }
  .nav-toggle { display: flex; }
  .features { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--s-4); }
  .hero-cta-row .btn { width: 100%; }
  .hero-stats { gap: var(--s-3); flex-wrap: wrap; }
  .cta-section { margin-top: var(--s-5); padding: var(--s-6) 0; }
}

/* ---------- Animaciones de entrada ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}
@keyframes safetyReveal {
  to { opacity: 1; transform: translateY(0); }
}
.reveal { animation: safetyReveal 0.01s ease 3s forwards; }

@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
  .reveal { opacity: 1; transform: none; animation: none; }
  * { transition-duration: 0.01s !important; }
}

@media print {
  .nav, .footer, .cta-section, .hero-cta-row, .ticker { display: none; }
  body { font-size: 11pt; color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
}