/* ===== MODERN THEME — galvarado.com.mx ===== */

:root {
  --accent:        #6366f1;
  --accent-dark:   #4f46e5;
  --accent-light:  #eef2ff;
  --text-primary:  #1e1b4b;
  --text-body:     #334155;
  --text-muted:    #64748b;
  --bg-main:       #f8fafc;
  --bg-card:       #ffffff;
  --border:        #e2e8f0;
  --radius:        12px;
  --shadow-sm:     0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:     0 4px 20px rgba(0,0,0,.09), 0 2px 6px rgba(0,0,0,.04);
  --transition:    all 0.2s ease;
}

/* ── Base ────────────────────────────────── */
body {
  background-color: var(--bg-main);
  color: var(--text-body);
}

a {
  color: var(--accent);
  transition: var(--transition);
}
a:hover {
  color: var(--accent-dark);
  text-decoration: none;
}

/* ── Hero header ────────────────────────── */
.site-hero {
  background: linear-gradient(135deg, #0d0b1e 0%, #1a1040 50%, #0f1b3d 100%);
  padding: 1.5rem 1.5rem 1.25rem;
  text-align: center;
  border-bottom: 1px solid rgba(99,102,241,0.25);
  box-shadow: 0 4px 32px rgba(0,0,0,0.35);
}

.site-hero-inner {
  max-width: 700px;
  margin: 0 auto;
}

.site-hero-logo {
  max-width: 85%;
  width: 480px;
  height: auto;
  margin-bottom: 0.75rem;
}

.site-hero-desc {
  color: rgba(226, 232, 240, 0.9);
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  line-height: 1.75;
  margin: 0;
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* hide old mainheading on index if still present */
.main-content > .mainheading:first-child {
  display: none;
}

/* ── Navbar ──────────────────────────────── */
#main-navbar {
  background: linear-gradient(90deg, #0d0b1e 0%, #1a1040 60%, #1e1065 100%) !important;
  border-bottom: 1px solid rgba(99,102,241,0.3);
  box-shadow: 0 2px 20px rgba(0,0,0,.5);
}

.navbar-brand-text {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none !important;
}

.brand-logo {
  height: 32px;
  width: auto;
}

.brand-initials {
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.brand-sep {
  color: rgba(165,180,252,0.5);
  font-size: 1rem;
  font-weight: 300;
}

.brand-tagline {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: #a5b4fc;
  letter-spacing: 0.2px;
}

#main-navbar .nav-item:nth-child(n+3) .nav-link {
  font-size: 1.1rem;
  padding: 0.5rem 0.75rem !important;
  color: #a5b4fc !important;
}

#main-navbar .nav-item:nth-child(n+3) .nav-link:hover {
  color: #ffffff !important;
}

#main-navbar .nav-link {
  color: rgba(226,232,240,0.85) !important;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
  padding: 0.5rem 1rem !important;
}

#main-navbar .nav-link:hover,
#main-navbar .nav-item.active .nav-link {
  color: #a5b4fc !important;
}

#main-navbar .navbar-toggler {
  border-color: rgba(165,180,252,0.4);
}

#main-navbar .navbar-toggler-icon {
  filter: invert(1);
}

/* ── Typography ─────────────────────────── */
h1, h2, h3, h4, h5, h6,
.posttitle,
.section-title h2 span {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif !important;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.posttitle {
  font-size: 2.35rem;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.section-title h2 span {
  font-size: 1.35rem;
}

/* ── Posts section ──────────────────────── */
.recent-posts {
  padding: 2.5rem 0 3rem;
}

.section-title {
  margin-bottom: 2rem;
}

.listrecent .card-group {
  margin-bottom: 2rem !important;
}

/* ── Post cards ─────────────────────────── */
.card {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-sm) !important;
  background: var(--bg-card) !important;
  transition: box-shadow 0.2s ease, transform 0.2s ease !important;
  overflow: hidden;
}
.card:hover {
  box-shadow: var(--shadow-md) !important;
  transform: translateY(-3px);
}

.card .card-body {
  padding: 1.25rem 1.4rem;
}

.card-title a {
  color: var(--text-primary) !important;
  font-family: 'Inter', sans-serif !important;
  font-weight: 600 !important;
  font-size: 1.05rem !important;
  letter-spacing: -0.01em;
}
.card-title a:hover {
  color: var(--accent) !important;
}

.card-text {
  color: var(--text-muted) !important;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ── Single post top spacing ────────────── */
.mainheading {
  padding-top: 2rem;
}

/* ── Article content ────────────────────── */
.article-post {
  font-size: 1.05rem;
  line-height: 1.88;
  color: var(--text-body);
}

.article-post h1,
.article-post h2,
.article-post h3,
.article-post h4 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-post p {
  margin-bottom: 1.4rem;
}

/* ── Featured image ─────────────────────── */
.featured-image {
  border-radius: var(--radius);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

/* ── Code ───────────────────────────────── */
.article-post pre {
  background: #0d1117;
  border: 1px solid #21262d;
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  color: #c9d1d9;
  font-size: 0.88rem;
  line-height: 1.65;
  overflow-x: auto;
}

.article-post code {
  background: var(--accent-light);
  border: 1px solid #c7d2fe;
  border-radius: 5px;
  padding: 2px 7px;
  font-size: 0.87em;
  color: var(--accent-dark);
}

.article-post pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: #c9d1d9;
  font-size: inherit;
}

/* ── Blockquote ─────────────────────────── */
.article-post blockquote,
blockquote {
  border-left: 4px solid var(--accent) !important;
  background: #f5f3ff;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.5rem !important;
  margin: 1.75rem 0 !important;
  color: #4c1d95;
  font-style: italic;
}

/* ── Tags ───────────────────────────────── */
.tags {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tags li {
  margin: 0;
}

.tags li a {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  border: 1px solid #c7d2fe;
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
  text-decoration: none;
}

.tags li a:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Author box ─────────────────────────── */
.post-top-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 1.5rem;
  margin-bottom: 0.5rem;
}

img.author-thumb {
  width: 54px !important;
  height: 54px !important;
  border-radius: 50% !important;
  object-fit: cover;
  border: 2px solid var(--border);
}

.author-description {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Prev/Next nav ──────────────────────── */
.PageNavigation a {
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  transition: var(--transition);
}
.PageNavigation a:hover {
  color: var(--accent-dark);
}

/* ── Pagination ─────────────────────────── */
.pagination .page-link {
  border-radius: 8px;
  margin: 0 3px;
  border: 1px solid var(--border);
  color: var(--accent);
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  transition: var(--transition);
}
.pagination .page-item.active .page-link {
  background: var(--accent);
  border-color: var(--accent);
}
.pagination .page-link:hover {
  background: var(--accent-light);
  color: var(--accent-dark);
}

/* ── Footer ─────────────────────────────── */
.site-footer {
  background: linear-gradient(90deg, #0d0b1e 0%, #1a1040 60%, #1e1065 100%);
  border-top: 1px solid rgba(99,102,241,0.3);
  padding: 1.25rem 0;
  margin-top: 3rem;
}

.site-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none !important;
}

.footer-logo {
  height: 28px;
  width: auto;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: rgba(226,232,240,0.6) !important;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #a5b4fc !important;
}

.footer-copy {
  color: rgba(148,163,184,0.5);
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
}

/* ── Newsletter popup ───────────────────── */
.newsletter-popup {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 300px;
  background: linear-gradient(135deg, #0d0b1e 0%, #1a1040 100%);
  border: 1px solid rgba(99,102,241,0.35);
  border-radius: 16px;
  padding: 1.5rem 1.5rem 1.25rem;
  box-shadow: 0 8px 40px rgba(0,0,0,0.45);
  z-index: 999;
  color: #e2e8f0;
}

.newsletter-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: transparent;
  border: none;
  color: rgba(226,232,240,0.5);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s;
  padding: 2px 6px;
}

.newsletter-close:hover {
  color: #ffffff;
}

.newsletter-title {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 6px;
}

.newsletter-desc {
  font-family: 'Inter', sans-serif;
  font-size: 0.83rem;
  color: rgba(165,180,252,0.85);
  margin: 0 0 14px;
}

.newsletter-popup input[type="email"] {
  width: 100%;
  border-radius: 8px;
  border: 1px solid rgba(99,102,241,0.4);
  background: rgba(255,255,255,0.07);
  color: #e2e8f0;
  padding: 8px 12px;
  font-size: 0.88rem;
  outline: none;
  margin-bottom: 8px;
  box-sizing: border-box;
  transition: border-color 0.2s;
}

.newsletter-popup input[type="email"]::placeholder {
  color: rgba(148,163,184,0.5);
}

.newsletter-popup input[type="email"]:focus {
  border-color: var(--accent);
}

.newsletter-popup input[type="submit"] {
  width: 100%;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #fff;
  padding: 9px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.2s;
}

.newsletter-popup input[type="submit"]:hover {
  background: var(--accent-dark);
}

/* ── Certifications ─────────────────────── */
.cert-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 1.5rem;
}

.cert-item {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  width: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.cert-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: #c7d2fe;
}

.cert-item img {
  width: 52px !important;
  height: 52px !important;
  object-fit: contain;
}

/* ── Author images (sidebar / about) ────── */
.sidebar-profile .sidebar-profile-picture,
#about #about-card #about-card-picture {
  width: 250px !important;
  height: auto !important;
  border-radius: 10px !important;
  box-shadow: var(--shadow-md);
}