/* === SOLUTECH BLOG — Design System === */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #f87116;
  --primary-dim: rgba(248, 113, 22, 0.15);
  --primary-border: rgba(248, 113, 22, 0.3);
  --bg: #050505;
  --surface: #0e0e0e;
  --surface-2: #161616;
  --border: rgba(255,255,255,0.07);
  --text: #e8e8e8;
  --text-muted: #808080;
  --text-dim: #555;
  --font-headline: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 1.25rem;
  --radius-sm: 0.75rem;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── Glassmorphism ─── */
.glass {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
}

/* ─── Navbar ─── */
.blog-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.25rem 1.5rem;
}
.blog-nav__inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1.5rem;
}
.blog-nav__logo {
  display: flex; align-items: center; gap: 0.5rem;
  text-decoration: none;
  font-family: var(--font-headline); font-weight: 700; font-size: 1.15rem;
  color: #fff; letter-spacing: -0.02em;
}
.blog-nav__logo img { height: 1.75rem; width: auto; }
.blog-nav__links { display: flex; align-items: center; gap: 1.5rem; }
.blog-nav__links a {
  text-decoration: none; color: var(--text-muted);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em;
  transition: color 0.2s;
}
.blog-nav__links a:hover, .blog-nav__links a.active { color: #fff; }
.blog-nav__cta {
  display: inline-block; text-decoration: none;
  background: var(--primary); color: #fff;
  padding: 0.55rem 1.2rem; border-radius: var(--radius-sm);
  font-family: var(--font-headline); font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  transition: filter 0.2s;
}
.blog-nav__cta:hover { filter: brightness(1.1); }

/* ─── Hero del Blog ─── */
.blog-hero {
  min-height: 55vh; display: flex; align-items: center;
  padding: 9rem 1.5rem 4rem;
  position: relative; overflow: hidden;
}
.blog-hero__glow {
  position: absolute; width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(248,113,22,0.08) 0%, transparent 70%);
  top: -200px; left: -200px; pointer-events: none;
}
.blog-hero__inner { max-width: 1200px; margin: 0 auto; width: 100%; position: relative; z-index: 1; }
.blog-hero__tag {
  display: inline-block;
  background: var(--primary-dim); border: 1px solid var(--primary-border);
  color: var(--primary); font-size: 0.65rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.2em;
  padding: 0.4rem 0.9rem; border-radius: 99px; margin-bottom: 1.5rem;
}
.blog-hero__title {
  font-family: var(--font-headline); font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -0.03em;
  color: #fff; max-width: 700px; margin-bottom: 1.25rem;
}
.blog-hero__subtitle {
  color: var(--text-muted); font-size: 1.1rem; max-width: 550px; line-height: 1.6;
}

/* ─── Grid de artículos ─── */
.blog-grid {
  max-width: 1200px; margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}
.article-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  text-decoration: none; color: inherit;
  display: flex; flex-direction: column;
  transition: border-color 0.3s, transform 0.3s;
}
.article-card:hover { border-color: var(--primary-border); transform: translateY(-3px); }
.article-card__img {
  height: 200px; overflow: hidden; background: var(--surface-2);
  position: relative;
}
.article-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.7; transition: opacity 0.4s, transform 0.5s;
}
.article-card:hover .article-card__img img { opacity: 0.9; transform: scale(1.04); }
.article-card__tag {
  position: absolute; top: 1rem; left: 1rem;
  background: var(--primary); color: #fff;
  font-size: 0.6rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.15em;
  padding: 0.3rem 0.7rem; border-radius: 99px;
}
.article-card__body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; gap: 0.75rem; }
.article-card__meta { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.1em; }
.article-card__title {
  font-family: var(--font-headline); font-size: 1.15rem; font-weight: 700;
  color: #fff; line-height: 1.3; letter-spacing: -0.01em;
}
.article-card__excerpt { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; flex: 1; }
.article-card__footer {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.75rem; font-weight: 700; color: var(--primary);
  margin-top: 0.5rem;
}

/* ─── Artículo Individual ─── */
.post-wrap { max-width: 780px; margin: 0 auto; padding: 8rem 1.5rem 6rem; }

.post-header { margin-bottom: 3rem; }
.post-header__back {
  display: inline-flex; align-items: center; gap: 0.4rem;
  text-decoration: none; color: var(--text-muted);
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em;
  transition: color 0.2s; margin-bottom: 2rem;
}
.post-header__back:hover { color: var(--primary); }
.post-header__tag {
  display: inline-block; background: var(--primary-dim);
  border: 1px solid var(--primary-border); color: var(--primary);
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.2em;
  padding: 0.35rem 0.8rem; border-radius: 99px; margin-bottom: 1.25rem;
}
.post-header__title {
  font-family: var(--font-headline); font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700; line-height: 1.15; letter-spacing: -0.03em; color: #fff;
  margin-bottom: 1.25rem;
}
.post-header__meta {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
  font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em;
}
.post-header__meta span { display: flex; align-items: center; gap: 0.35rem; }

.post-hero-img {
  width: 100%; aspect-ratio: 16/9; object-fit: cover;
  border-radius: var(--radius); margin-bottom: 3rem;
  border: 1px solid var(--border);
}

/* ─── Contenido del Post ─── */
.post-content { font-size: 1.0625rem; line-height: 1.85; color: var(--text); }
.post-content h2 {
  font-family: var(--font-headline); font-size: 1.6rem; font-weight: 700;
  color: #fff; letter-spacing: -0.02em; margin: 2.5rem 0 1rem;
}
.post-content h3 {
  font-family: var(--font-headline); font-size: 1.2rem; font-weight: 600;
  color: #e0e0e0; margin: 2rem 0 0.75rem;
}
.post-content p { margin-bottom: 1.4rem; color: var(--text); }
.post-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.post-content strong { color: #fff; font-weight: 600; }
.post-content ul, .post-content ol {
  margin: 1rem 0 1.4rem 1.5rem;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.post-content li { color: var(--text); }
.post-content blockquote {
  border-left: 3px solid var(--primary);
  margin: 2rem 0; padding: 1.25rem 1.5rem;
  background: var(--primary-dim); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.post-content blockquote p { margin: 0; color: #fff; font-style: italic; font-size: 1.05rem; }

/* ─── Stat box ─── */
.stat-box {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem; margin: 2rem 0;
}
.stat-item {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 1.5rem; text-align: center;
}
.stat-item__num {
  font-family: var(--font-headline); font-size: 2rem; font-weight: 700;
  color: var(--primary); display: block; line-height: 1;
}
.stat-item__label { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.4rem; }

/* ─── Callout / Tip ─── */
.callout {
  border: 1px solid var(--primary-border); background: var(--primary-dim);
  border-radius: var(--radius-sm); padding: 1.25rem 1.5rem; margin: 2rem 0;
  display: flex; gap: 1rem; align-items: flex-start;
}
.callout__icon { font-size: 1.25rem; flex-shrink: 0; margin-top: 0.1rem; }
.callout__text { font-size: 0.9rem; color: var(--text); }
.callout__text strong { color: var(--primary); }

/* ─── CTA final del post ─── */
.post-cta {
  margin-top: 3.5rem; padding: 2.5rem;
  background: linear-gradient(135deg, #111 0%, #0a0a0a 100%);
  border: 1px solid var(--border); border-radius: var(--radius);
  text-align: center;
}
.post-cta h3 {
  font-family: var(--font-headline); font-size: 1.5rem; font-weight: 700;
  color: #fff; margin-bottom: 0.75rem;
}
.post-cta p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
.post-cta a {
  display: inline-block; text-decoration: none;
  background: var(--primary); color: #fff;
  padding: 0.9rem 2rem; border-radius: var(--radius-sm);
  font-family: var(--font-headline); font-weight: 700; font-size: 0.9rem;
  transition: filter 0.2s, transform 0.2s;
  box-shadow: 0 15px 40px rgba(248,113,22,0.25);
}
.post-cta a:hover { filter: brightness(1.1); transform: translateY(-2px); }

/* ─── Footer ─── */
.blog-footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem; text-align: center;
}
.blog-footer p { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.15em; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .blog-nav__links { display: none; }
  .blog-grid { grid-template-columns: 1fr; }
  .post-wrap { padding: 7rem 1.25rem 4rem; }
}