/* ============================================
   CascosParaMotosGT - Asphalt Neon Theme
   ============================================ */

:root {
  --bg-primary: #0f1319;
  --bg-secondary: #151b23;
  --bg-card: #1c2430;
  --bg-elevated: #232d3a;
  --bg-body: #0b1016;
  --primary: #22d3ee;
  --primary-light: #67e8f9;
  --primary-dark: #0891b2;
  --accent: #f97316;
  --accent-light: #fb923c;
  --accent-soft: rgba(249, 115, 22, 0.08);
  --primary-soft: rgba(34, 211, 238, 0.12);
  --gradient-main: linear-gradient(135deg, #22d3ee, #f97316);
  --gradient-hover: linear-gradient(135deg, #67e8f9, #fb923c);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.2);
  --border-hover: rgba(34, 211, 238, 0.45);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.24);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.28);
  --shadow-hover: 0 10px 34px rgba(0, 0, 0, 0.4);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.bg-grid {
  background-image:
    radial-gradient(circle at 20% 0%, rgba(34, 211, 238, 0.09) 0%, transparent 40%),
    radial-gradient(circle at 80% 10%, rgba(249, 115, 22, 0.08) 0%, transparent 35%);
}

.bg-gradient-hero {
  background:
    radial-gradient(ellipse at 20% 0%, rgba(34, 211, 238, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(249, 115, 22, 0.08) 0%, transparent 40%),
    linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.heading-xl { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 900; line-height: 1.05; letter-spacing: -0.02em; text-transform: uppercase; color: var(--text-primary); }
.heading-lg { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; line-height: 1.1; letter-spacing: -0.01em; text-transform: uppercase; color: var(--text-primary); }
.heading-md { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; line-height: 1.2; text-transform: uppercase; color: var(--text-primary); }
.heading-sm { font-size: 1.25rem; font-weight: 700; line-height: 1.3; text-transform: uppercase; color: var(--text-primary); }

.text-eyebrow { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.text-body { font-size: 1.05rem; line-height: 1.75; color: var(--text-secondary); }
.text-small { font-size: 0.875rem; color: var(--text-muted); }

.container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 1.5rem; }

.site-header { position: sticky; top: 0; z-index: 100; backdrop-filter: blur(12px); background: rgba(11, 16, 22, 0.82); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.5rem; max-width: 1280px; margin: 0 auto; }
.site-logo { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.15em; text-transform: uppercase; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; text-decoration: none; transition: var(--transition); }
.site-logo:hover { opacity: 0.85; }
.main-nav { display: flex; gap: 0.25rem; }
.nav-link { padding: 0.5rem 1rem; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-secondary); text-decoration: none; border-radius: var(--radius-md); transition: var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--primary); background: var(--primary-soft); }

.breadcrumbs { padding: 1.25rem 0; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); }
.breadcrumbs a { color: var(--text-secondary); text-decoration: none; transition: var(--transition); }
.breadcrumbs a:hover { color: var(--primary); }
.breadcrumbs span { margin: 0 0.5rem; opacity: 0.4; }

.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-xl); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm); }
.card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.card-image { width: 100%; height: 240px; object-fit: cover; transition: var(--transition); }
.card:hover .card-image { transform: scale(1.02); }
.card-content { padding: 1.5rem; }
.card-meta { display: flex; gap: 1rem; margin-top: 1rem; font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.875rem 1.75rem; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; border-radius: var(--radius-md); border: none; cursor: pointer; transition: var(--transition); }
.btn-primary { background: var(--gradient-main); color: #fff; }
.btn-primary:hover { background: var(--gradient-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(34, 211, 238, 0.25); }
.btn-secondary { background: transparent; color: var(--text-primary); border: 1.5px solid var(--border); }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.btn-ghost { background: transparent; color: var(--text-secondary); padding: 0.5rem 1rem; }
.btn-ghost:hover { color: var(--primary); }

.hero { position: relative; padding: 4rem 0; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 50%, rgba(34, 211, 238, 0.12) 0%, transparent 60%); pointer-events: none; }
.hero-content { position: relative; z-index: 1; }
.hero-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1.5rem; margin-top: 2.5rem; }
.stat-card { padding: 1.5rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); text-align: center; box-shadow: var(--shadow-sm); }
.stat-value { font-size: 2.5rem; font-weight: 900; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.stat-label { margin-top: 0.5rem; font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); }

.blog-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.blog-grid-featured { display: grid; gap: 2rem; grid-template-columns: 1fr; margin-bottom: 3rem; }
@media (min-width: 768px) { .blog-grid-featured { grid-template-columns: 1.2fr 0.8fr; } }

.article-layout { display: grid; gap: 3rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .article-layout { grid-template-columns: minmax(0, 1fr) 300px; } }

.article-content { font-size: 1.1rem; line-height: 1.8; color: var(--text-secondary); }
.article-content h2 { font-size: 1.75rem; font-weight: 800; text-transform: uppercase; margin: 3rem 0 1.5rem; color: var(--text-primary); }
.article-content p { margin-bottom: 1.5rem; }
.article-content a { color: var(--primary); text-decoration: underline; text-decoration-color: rgba(34, 211, 238, 0.25); text-underline-offset: 3px; transition: var(--transition); }
.article-content a:hover { text-decoration-color: var(--primary); }

.toc { position: sticky; top: 5rem; padding: 1.5rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.toc-title { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 1rem; }
.toc-list { list-style: none; }
.toc-list li { margin-bottom: 0.75rem; }
.toc-list a { font-size: 0.85rem; color: var(--text-secondary); text-decoration: none; padding-left: 1rem; border-left: 2px solid var(--border); transition: var(--transition); display: block; }
.toc-list a:hover, .toc-list a.active { color: var(--primary); border-left-color: var(--primary); }

.reading-progress { position: fixed; top: 0; left: 0; width: 0%; height: 3px; background: var(--gradient-main); z-index: 200; transition: width 0.1s linear; }
.sidebar { display: flex; flex-direction: column; gap: 1.5rem; }
.sidebar-card { padding: 1.5rem; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }

.newsletter { padding: 2.5rem; background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(249, 115, 22, 0.08)); border: 1px solid rgba(34, 211, 238, 0.25); border-radius: var(--radius-xl); text-align: center; }
.newsletter-form { display: flex; gap: 0.75rem; margin-top: 1.5rem; }
.newsletter-input { flex: 1; padding: 0.875rem 1rem; background: var(--bg-secondary); border: 1.5px solid var(--border); border-radius: var(--radius-md); color: var(--text-primary); font-size: 0.9rem; outline: none; transition: var(--transition); }
.newsletter-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.newsletter-input::placeholder { color: var(--text-muted); }

.site-footer { margin-top: 4rem; padding: 3rem 0; border-top: 1px solid var(--border); background: var(--bg-secondary); }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.5fr 1fr; } }
.footer-links { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-links a { font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: var(--primary); }

.glow-accent { box-shadow: var(--shadow-hover); }
.border-accent { border-color: var(--primary) !important; }
.text-gradient { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate-fade-in { animation: fadeInUp 0.6s ease-out forwards; }

.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* Utility classes used across templates */
.flex { display: flex; }
.grid { display: grid; }
.block { display: block; }
.hidden { display: none; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.object-cover { object-fit: cover; }
.text-center { text-align: center; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.overflow-hidden { overflow: hidden; }
.max-w-2xl { max-width: 42rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.25rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }
.opacity-70 { opacity: 0.7; }
.opacity-80 { opacity: 0.8; }
.text-xs { font-size: 0.75rem; }
.font-semibold { font-weight: 600; }
.md\:block { display: none; }
.h-\[320px\] { height: 320px; }

@media (min-width: 768px) {
  .md\:block { display: block; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .md\:h-full { height: 100%; }
}

@media (min-width: 1280px) {
  .xl\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .xl\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .hero { padding: 2rem 0; }
  .heading-xl { font-size: 2rem; }
  .blog-grid { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
}