/* ===== VARIABLES ===== */
:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2233;
  --bg-card-hover: #1e2940;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #22d3ee;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-pink: #ec4899;
  --accent-blue: #3b82f6;
  --border-color: #1e293b;
  --border-glow: rgba(34, 211, 238, 0.15);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ===== BASE ===== */
html {
  font-size: 16px;
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
}

a { color: var(--accent-cyan); transition: color 0.2s; }
a:hover { color: #67e8f9; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ===== NAVBAR ===== */
.navbar-dark-custom {
  background: rgba(10, 14, 23, 0.85) !important;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.navbar-dark-custom .navbar-brand {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-cyan) !important;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
}

.navbar-dark-custom .navbar-brand::before {
  content: "> ";
  color: var(--accent-green);
  opacity: 0.7;
}

.navbar-dark-custom .nav-link {
  color: var(--text-secondary) !important;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  padding: 0.5rem 1rem !important;
  transition: color 0.2s;
}

.navbar-dark-custom .nav-link:hover {
  color: var(--accent-cyan) !important;
}

/* ===== HERO ===== */
.hero-section {
  background: linear-gradient(135deg, var(--bg-primary) 0%, #0f172a 50%, #0c1929 100%);
  position: relative;
  overflow: hidden;
  padding: 5rem 0;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(34, 211, 238, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 60% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 40%);
  pointer-events: none;
}

.hero-section .hero-grid {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.1;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.2rem;
  max-width: 540px;
}

.hero-prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2rem;
}

.hero-prompt .cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent-cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* ===== BUTTONS ===== */
.btn-glow {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #0a0e17 !important;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  transition: all 0.3s;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.15);
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.3);
  color: #0a0e17 !important;
}

.btn-outline-glow {
  background: transparent;
  color: var(--accent-cyan) !important;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid var(--accent-cyan);
  padding: 0.75rem 1.75rem;
  border-radius: 6px;
  transition: all 0.3s;
}

.btn-outline-glow:hover {
  background: rgba(34, 211, 238, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.15);
  color: var(--accent-cyan) !important;
}

.btn-amber {
  background: linear-gradient(135deg, var(--accent-amber), #d97706);
  color: #0a0e17 !important;
  font-family: var(--font-mono);
  font-weight: 700;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: 6px;
  transition: all 0.3s;
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.15);
}

.btn-amber:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.3);
  color: #0a0e17 !important;
}

/* ===== CARDS ===== */
.card-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.3s;
}

.card-dark:hover {
  background: var(--bg-card-hover);
  border-color: rgba(34, 211, 238, 0.2);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 40px var(--border-glow);
  transform: translateY(-4px);
}

.card-dark .card-body { padding: 1.75rem; }

.card-dark .card-title a {
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-heading);
}

.card-dark .card-title a:hover { color: var(--accent-cyan); }

/* ===== CATEGORY BADGES ===== */
.badge-category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.35em 0.75em;
  border-radius: 4px;
  text-decoration: none;
}

.badge-aws { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.badge-leadership { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.badge-automation { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }
.badge-career { background: rgba(236, 72, 153, 0.15); color: var(--accent-pink); }
.badge-ai { background: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.badge-agile { background: rgba(34, 211, 238, 0.15); color: var(--accent-cyan); }
.badge-default { background: rgba(148, 163, 184, 0.15); color: var(--text-secondary); }

/* ===== FEATURED BADGE ===== */
.badge-featured {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.25em 0.6em;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ===== TAG BADGES ===== */
.badge-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 0.3em 0.6em;
  border-radius: 4px;
}

/* ===== SECTIONS ===== */
.section-dark { background: var(--bg-primary); padding: 5rem 0; }
.section-darker { background: var(--bg-secondary); padding: 5rem 0; }

.section-heading {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.section-heading::before {
  content: "// ";
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.9em;
}

.section-lead {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ===== FEATURE CARDS (homepage) ===== */
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.feature-icon-cyan { background: rgba(34, 211, 238, 0.1); color: var(--accent-cyan); }
.feature-icon-green { background: rgba(16, 185, 129, 0.1); color: var(--accent-green); }
.feature-icon-amber { background: rgba(245, 158, 11, 0.1); color: var(--accent-amber); }

/* ===== BLOG CONTENT ===== */
.blog-content { max-width: 720px; }
.blog-content h2 { margin-top: 2.5rem; margin-bottom: 1rem; color: var(--text-primary); }
.blog-content h3 { margin-top: 2rem; margin-bottom: 0.75rem; color: var(--text-primary); }
.blog-content p { line-height: 1.8; margin-bottom: 1.5rem; color: var(--text-secondary); }
.blog-content strong { color: var(--text-primary); }
.blog-content ul, .blog-content ol { margin-bottom: 1.5rem; color: var(--text-secondary); }
.blog-content li { line-height: 1.8; margin-bottom: 0.35rem; }

.blog-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.blog-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-green);
}

.blog-content pre code { background: none; padding: 0; color: var(--text-secondary); }

.blog-content code:not(pre code) {
  background: rgba(16, 185, 129, 0.1);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

.blog-content blockquote {
  border-left: 3px solid var(--accent-cyan);
  padding-left: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.blog-content img { max-width: 100%; height: auto; border-radius: 8px; }
.blog-content hr { border-color: var(--border-color); margin: 3rem 0; }
.blog-content a { color: var(--accent-cyan); }
.blog-content a:hover { color: #67e8f9; }

/* ===== BLOG FILTER BUTTONS ===== */
.btn-filter {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.4em 0.9em;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.btn-filter:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(34, 211, 238, 0.05);
}

.btn-filter-active {
  background: rgba(34, 211, 238, 0.15) !important;
  border-color: var(--accent-cyan) !important;
  color: var(--accent-cyan) !important;
}

/* ===== FORMS ===== */
.form-control-dark {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  transition: border-color 0.2s;
}

.form-control-dark:focus {
  background: var(--bg-secondary);
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
  outline: none;
}

.form-control-dark::placeholder { color: var(--text-muted); }

.form-label-dark {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
}

/* ===== FOOTER ===== */
.footer-dark {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem;
}

.footer-dark h5 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.footer-dark a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-dark a:hover { color: var(--accent-cyan); }

.footer-dark .footer-brand {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 1rem;
}

.footer-dark .footer-brand::before {
  content: "> ";
  color: var(--accent-green);
}

.footer-dark .copyright {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

/* ===== PAGE HEADERS ===== */
.page-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 3rem 0;
}

.page-header h1 {
  font-size: 2.5rem;
  background: linear-gradient(135deg, #ffffff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== ALERTS ===== */
.alert-dark-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.alert-dark-danger {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

/* ===== UTILITIES ===== */
.text-cyan { color: var(--accent-cyan) !important; }
.text-green { color: var(--accent-green) !important; }
.text-amber { color: var(--accent-amber) !important; }
.text-muted-custom { color: var(--text-muted) !important; }
.text-secondary-custom { color: var(--text-secondary) !important; }
.border-dark-custom { border-color: var(--border-color) !important; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .hero-section { padding: 3rem 0; }
  .section-dark, .section-darker { padding: 3rem 0; }
}