/* ============================================
   jmlero.github.io — Global Styles
   ============================================ */

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

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

/* Variables — Light warm palette */
:root {
  --bg-primary: #f8f6f3;
  --bg-secondary: #efeae4;
  --bg-card: #ffffff;
  --bg-card-hover: #fdfcfb;
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #a8a29e;
  --accent: #0d7c66;
  --accent-hover: #0a9b80;
  --accent-dim: rgba(13, 124, 102, 0.08);
  --accent-glow: rgba(13, 124, 102, 0.12);
  --blue: #2563eb;
  --purple: #7c3aed;
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(13, 124, 102, 0.3);
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1100px;
  --nav-height: 64px;
}

/* Base */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(13, 124, 102, 0.2);
  color: var(--text-primary);
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Subtle grain texture */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

img {
  max-width: 100%;
  display: block;
}

/* Background glow — warm subtle blobs */
.bg-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.bg-glow::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(13, 124, 102, 0.04) 0%, transparent 60%);
  animation: glow-drift 20s ease-in-out infinite;
}

.bg-glow::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.03) 0%, transparent 60%);
  animation: glow-drift 25s ease-in-out infinite reverse;
}

@keyframes glow-drift {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -20px); }
  66% { transform: translate(-20px, 30px); }
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(248, 246, 243, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: background 0.3s;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.nav-logo span {
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
  box-shadow: inset 0 -2px 0 var(--accent);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(248, 246, 243, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    gap: 0;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    padding: 0.75rem 1rem;
  }
}

/* ============================================
   Layout
   ============================================ */
.page {
  flex: 1;
  padding-top: var(--nav-height);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

/* ============================================
   Hero (Home page)
   ============================================ */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  align-items: center;
  padding: 4rem 0;
}

.hero-content {
  max-width: 720px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fade-in-up 0.6s 0.1s forwards;
}

.hero-label::before {
  content: '> ';
  color: var(--text-muted);
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  opacity: 0;
  animation: fade-in-up 0.6s 0.2s forwards;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 40%, var(--blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fade-in-up 0.6s 0.35s forwards;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-in-up 0.6s 0.5s forwards;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
}

.btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  color: var(--text-primary);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  box-shadow: 0 4px 20px rgba(13, 124, 102, 0.25);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ============================================
   Section Headings
   ============================================ */
.section-header {
  margin-bottom: 3rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 1rem;
  max-width: 600px;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(13, 124, 102, 0.08);
}

/* ============================================
   Topic Cards (Focus Areas)
   ============================================ */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.topic-card {
  position: relative;
  overflow: hidden;
}

.topic-card .topic-icon {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: inline-block;
  color: var(--accent);
}

.topic-card h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.topic-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.topic-card .topic-tag {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.25rem 0.75rem;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-radius: 20px;
}

/* ============================================
   Blog Cards
   ============================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.blog-card {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  color: inherit;
}

.blog-card .blog-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.blog-card .blog-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-card .blog-tag {
  padding: 0.2rem 0.6rem;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: 20px;
  transition: background 0.3s, color 0.3s;
}

.blog-card h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.75rem;
  transition: color 0.2s;
}

.blog-card:hover h3 {
  color: var(--accent);
}

.blog-card .blog-excerpt {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  flex: 1;
}

.blog-card .blog-read-more {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.blog-card .blog-read-more::after {
  content: '\2192';
  transition: transform 0.25s;
}

.blog-card:hover .blog-read-more::after {
  transform: translateX(6px);
}

.blog-card:hover .blog-tag {
  background: var(--accent);
  color: #fff;
}

/* ============================================
   Blog Post
   ============================================ */
.post {
  max-width: 740px;
  margin: 0 auto;
  padding: 4rem 2rem 6rem;
}

.post-header {
  margin-bottom: 3rem;
}

.post-back {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.post-back:hover {
  color: var(--accent);
}

.post-header h1 {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
}

.post-header .post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.post-header .post-meta .blog-tag {
  padding: 0.2rem 0.6rem;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: 20px;
}

.post-content {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.85;
}

.post-content h2 {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
}

.post-content h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
}

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.post-content ul, .post-content ol {
  margin: 1rem 0 1.5rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

.post-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
}

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

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-style: italic;
}

/* ============================================
   About page
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text h2 {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  font-size: 1.02rem;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.highlight-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.highlight-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent);
}

.highlight-item h4 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.highlight-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Connect page
   ============================================ */
.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.connect-card {
  text-align: center;
  padding: 2.5rem 2rem;
}

.connect-card .connect-icon {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.connect-card .connect-icon svg {
  fill: var(--accent);
}

.connect-card h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.connect-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.connect-card .btn {
  width: 100%;
  justify-content: center;
}

/* CTA section */
.cta-section {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: 20px;
  margin: 2rem 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 80px;
  background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}

.cta-section h2 {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 2rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: auto;
}

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

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

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

@media (max-width: 600px) {
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Page header (inner pages)
   ============================================ */
.page-header {
  padding: 4rem 0 2rem;
}

/* ============================================
   Home featured section
   ============================================ */
.home-topics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .home-topics {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .home-topics {
    grid-template-columns: 1fr;
  }
  .topics-grid {
    grid-template-columns: 1fr;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
}

.home-topic-card {
  padding: 1.5rem;
}

.home-topic-card h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.home-topic-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Terminal cursor */
.cursor {
  display: inline-block;
  width: 3px;
  height: 1.1em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: text-bottom;
  animation: pulse 1.2s ease-in-out infinite;
  border-radius: 1px;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ============================================
   Utility
   ============================================ */
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }

/* ============================================
   Coming Soon (placeholder sections)
   ============================================ */
.coming-soon {
  text-align: center;
  padding: 6rem 2rem;
  border: 1px dashed var(--border);
  border-radius: 20px;
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}

.coming-soon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, var(--accent-glow), transparent 70%);
  opacity: 0.4;
  pointer-events: none;
}

.coming-soon-icon {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  color: var(--accent);
  opacity: 0.3;
  margin-bottom: 1.5rem;
  letter-spacing: 4px;
}

.coming-soon h2 {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  position: relative;
}

.coming-soon p {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 400px;
  margin: 0 auto 2rem;
  position: relative;
}