/* =========================================================
   Gannes Portfolio – Neobrutalism Design System
   Vanilla CSS, no frameworks
   ========================================================= */

/* ── Google Fonts ───────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Inter:wght@400;500;600;700;800&display=swap');

/* ── CSS Variables (Light Mode) ─────────────────────────── */
:root {
  --bg:           #ffffff;
  --fg:           #000000;
  --card-bg:      #f5f5f5;
  --secondary:    #f0f0f0;
  --muted:        #666666;
  --border:       #000000;
  --border-strong:#000000;
  --accent:       #dc2626;
  --accent-dark:  #b91c1c;

  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;

  --border-w: 3px;
  --shadow:   -4px 4px 0px rgba(0,0,0,0.25);
  --shadow-sm:-2px 2px 0px rgba(0,0,0,0.2);
  --track-bg: #e0e0e0;

  --max-w: 1152px;
  --transition: 0.15s ease-out;
}

/* ── Dark Mode Variables ─────────────────────────────────── */
html.dark {
  --bg:           #0d0d0d;
  --fg:           #f0f0f0;
  --card-bg:      #1c1c1c;
  --secondary:    #161616;
  --muted:        #b5b5b5;
  --border:       #3a3a3a;
  --border-strong:#5a5a5a;
  --accent:       #ef4444;
  --accent-dark:  #dc2626;
  --shadow:      -4px 4px 0px rgba(0,0,0,0.6);
  --shadow-sm:   -2px 2px 0px rgba(0,0,0,0.5);
  --track-bg:     #2e2e2e;
}

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

html { }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

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

a {
  color: var(--fg);
  text-decoration: underline;
  font-weight: 500;
  transition: color var(--transition);
}
a:hover { color: var(--accent); }

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-family: var(--font-mono); }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: 1.5rem; }

/* ── Layout Helpers ──────────────────────────────────────── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem; }
.section   { padding: 5rem 1.25rem; border-top: var(--border-w) solid var(--border); border-bottom: var(--border-w) solid var(--border); }
.section-alt { background: var(--secondary); }

/* ── Neobrutalism Components ─────────────────────────────── */
.card {
  background: var(--card-bg);
  border: var(--border-w) solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.card:hover {
  transform: translate(-3px, 3px);
  box-shadow: var(--shadow);
}
html.dark .card {
  border-color: var(--border);
  box-shadow: -4px 4px 0px rgba(0,0,0,0.6);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1.5rem;
  border: var(--border-w) solid var(--border);
  background: var(--fg);
  color: var(--bg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn:hover {
  transform: translate(-2px, 2px);
  box-shadow: none;
  color: var(--bg);
}
.btn-outline {
  background: transparent;
  color: var(--fg);
}
.btn-outline:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
html.dark .btn-outline { border-color: var(--border); color: var(--fg); }
html.dark .btn-outline:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); color: #fff; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.8rem; }

.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  background: var(--secondary);
  border: 2px solid var(--border);
  text-transform: capitalize;
  text-decoration: none;
  color: var(--fg);
  transition: background var(--transition);
}
.tag:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.tag.active { background: var(--fg); color: var(--bg); }
html.dark .tag { background: #252525; border-color: var(--border); color: var(--fg); }
html.dark .tag:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
html.dark .tag.active { background: var(--fg); color: var(--bg); }

.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border: 2px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.badge-accent { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── Header ──────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: var(--border-w) solid var(--border);
}
html.dark .site-header {
  background: rgba(13,13,13,0.94);
  border-bottom-color: var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.header-logo { display: flex; align-items: center; text-decoration: none; }
.header-logo img { width: 40px; height: 40px; filter: invert(1); }
html.dark .header-logo img { filter: invert(0); }

.header-nav { display: flex; align-items: center; gap: 2rem; }
.header-nav a {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--fg);
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.header-nav a:hover,
.header-nav a.active { border-bottom-color: var(--fg); }

.header-actions { display: flex; align-items: center; gap: 0.75rem; }

#theme-toggle {
  width: 38px; height: 38px;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  padding: 0;
}
#theme-toggle:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
#theme-toggle:hover { transform: none; box-shadow: none; }
html.dark #theme-toggle { color: var(--fg); border-color: var(--border); }

.mobile-menu-btn {
  display: none;
  width: 38px; height: 38px;
  border: 2px solid var(--border);
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.mobile-menu-btn span {
  display: block;
  width: 20px; height: 2px;
  background: var(--fg);
  transition: transform var(--transition), opacity var(--transition);
}
.mobile-menu-btn:hover { background: var(--secondary); transform: none; box-shadow: none; }

.mobile-nav {
  display: none;
  flex-direction: column;
  border-top: 2px solid var(--border);
  background: var(--bg);
  padding: 1rem 1.25rem;
  gap: 0.75rem;
}
.mobile-nav a {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--fg);
  padding: 0.5rem 0;
}
.mobile-nav a:hover { color: var(--accent); }
.mobile-nav.open { display: flex; }

/* ── Hero Section ────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 5rem 1.25rem 3rem;
  background: var(--bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}
.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border: var(--border-w) solid var(--border);
  padding: 0.4rem 1rem;
  margin-bottom: 1.5rem;
}
.hero h1 { margin-bottom: 1.25rem; }
.hero h1 span { color: var(--accent); }
.hero-lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 2rem;
  max-width: 540px;
  line-height: 1.7;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 3rem; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  border-top: var(--border-w) solid var(--border);
  padding-top: 2rem;
}
.hero-stat-num { font-family: var(--font-mono); font-size: 2.5rem; font-weight: 700; }
.hero-stat-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-top: 0.25rem; color: var(--muted); }
.hero-image .card { overflow: hidden; padding: 0; }
.hero-image img { width: 100%; height: auto; object-fit: cover; aspect-ratio: 4/5; }

/* ── About Section ───────────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
.edu-grid   { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.edu-card { border: var(--border-w) solid var(--border); padding: 1rem; background: var(--bg); }
.edu-degree { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.25rem; }
.edu-school { font-size: 0.85rem; font-weight: 600; color: var(--accent); margin-bottom: 0.25rem; }
.edu-field  { font-size: 0.85rem; margin-bottom: 0.75rem; }
.edu-footer { display: flex; justify-content: space-between; font-size: 0.75rem; font-weight: 700; border-top: 2px solid var(--border); padding-top: 0.75rem; }
.edu-gpa    { color: var(--accent); }
.lang-item  { padding: 0.75rem 0; border-bottom: 2px solid var(--border); }
.lang-item:last-child { border-bottom: none; padding-bottom: 0; }
.lang-row   { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.5rem; }
.lang-name  { font-weight: 700; font-size: 0.95rem; }
.lang-bar   { width: 100%; height: 6px; background: var(--secondary); border-radius: 2px; overflow: hidden; }
.lang-fill  { height: 100%; background: var(--accent); border-radius: 2px; }

.info-grid  { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding-top: 1rem; border-top: 2px solid var(--border); margin-top: 1rem; }
.info-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 0.25rem; }
.info-value { font-size: 0.95rem; }
.info-value a { color: var(--fg); }
.info-value a:hover { color: var(--accent); }

/* ── Experience Section ───────────────────────────────────── */
.experience-list { display: flex; flex-direction: column; gap: 1.5rem; }
.exp-card { }
.exp-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 2px solid var(--border); }
.exp-title  { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.2rem; }
.exp-company { font-size: 0.95rem; color: var(--accent); font-weight: 600; }
.exp-meta   { text-align: right; }
.exp-date   { font-size: 0.8rem; font-weight: 700; font-family: var(--font-mono); white-space: nowrap; }
.exp-location { font-size: 0.8rem; color: var(--muted); }
.exp-desc   { font-size: 0.95rem; color: var(--muted); margin-bottom: 0.75rem; }
.exp-achievements { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.exp-achievements li {
  font-size: 0.9rem;
  padding-left: 1.2rem;
  position: relative;
}
.exp-achievements li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ── Skills Section ──────────────────────────────────────── */
.skills-grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.skill-card   {
  cursor: pointer;
  text-align: left;
  width: 100%;
  background: var(--card-bg);
  border: var(--border-w) solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.skill-card:hover { transform: translate(-3px, 3px); box-shadow: none; }
.skill-card.active {
  background: color-mix(in srgb, var(--accent) 10%, var(--card-bg));
  outline: 3px solid var(--accent);
}
html.dark .skill-card {
  background: #1e1e1e;
  border-color: #3a3a3a;
  box-shadow: -4px 4px 0px rgba(0,0,0,0.6);
}
html.dark .skill-card:hover {
  background: #252525;
  border-color: #505050;
  box-shadow: none;
}
html.dark .skill-card.active {
  background: rgba(239,68,68,0.12);
  outline: 3px solid var(--accent);
  border-color: var(--accent);
}
.skill-icon   { font-size: 2.5rem; margin-bottom: 0.75rem; }
.skill-cat    { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.25rem; color: var(--fg); }
.skill-desc   { font-size: 0.8rem; color: var(--muted); margin-bottom: 1rem; }
.skill-bar-wrap { display: flex; align-items: center; gap: 0.5rem; }
.skill-bar    { flex: 1; height: 6px; background: var(--track-bg); border-radius: 2px; overflow: hidden; }
.skill-bar-fill { height: 100%; background: var(--accent); border-radius: 2px; }
.skill-count  { font-size: 0.75rem; font-weight: 700; color: var(--muted); }

.skill-detail { margin-top: 1rem; }
.skill-detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-top: 1rem; }
.skill-item {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.9rem; font-weight: 600;
  padding: 0.6rem 0.75rem;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  transition: border-color var(--transition), background var(--transition);
}
.skill-item:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, var(--bg)); }
html.dark .skill-item {
  background: #181818;
  border-color: #3a3a3a;
  color: #e0e0e0;
}
html.dark .skill-item:hover {
  border-color: var(--accent);
  background: rgba(239,68,68,0.08);
}
.skill-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

/* ── Portfolio / Case Studies ────────────────────────────── */
.portfolio-grid  { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.portfolio-card  { display: flex; flex-direction: column; }
.portfolio-cat   { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 0.4rem; }
.portfolio-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.25rem; }
.portfolio-company { font-size: 0.9rem; color: var(--muted); margin-bottom: 1rem; padding-bottom: 1rem; border-bottom: 2px solid var(--border); }
.portfolio-desc  { font-size: 0.95rem; line-height: 1.6; margin-bottom: 1rem; flex: 1; }
.metrics-box     { background: var(--secondary); border: 2px solid var(--border); padding: 1rem; margin-bottom: 1rem; }
html.dark .metrics-box { background: #1a1a1a; border-color: #3a3a3a; }
.metrics-label   { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 0.75rem; }
.metrics-grid    { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
.metric-key      { font-size: 0.75rem; color: var(--muted); text-transform: capitalize; }
.metric-val      { font-size: 1rem; font-weight: 700; color: var(--accent); }
.result-box      { background: color-mix(in srgb, var(--accent) 8%, var(--bg)); border: 2px solid var(--accent); padding: 0.75rem; margin-bottom: 1rem; }
html.dark .result-box { background: rgba(239,68,68,0.1); border-color: var(--accent); }
.result-label    { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; color: var(--accent); margin-bottom: 0.3rem; }
.result-text     { font-size: 0.875rem; font-weight: 600; line-height: 1.5; color: var(--fg); }
.chal-sol        { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1rem; }
.chal-sol h5     { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 0.3rem; }
.chal-sol p      { font-size: 0.875rem; line-height: 1.6; }

.filter-bar      { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }

/* ── Contact Section ─────────────────────────────────────── */
.contact-grid    { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.contact-card    { text-align: center; display: flex; flex-direction: column; align-items: center; text-decoration: none; }
.contact-card:hover { color: var(--fg); }
.contact-icon    { width: 48px; height: 48px; margin-bottom: 1rem; }
.contact-title   { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.contact-text    { font-size: 0.875rem; color: var(--muted); }
.contact-social  { display: flex; gap: 1rem; margin-bottom: 0.75rem; }
.contact-social a { color: var(--fg); }
.contact-social a:hover { color: var(--accent); }
.contact-cta     { text-align: center; }
.contact-cta h3  { margin-bottom: 0.75rem; font-size: 1.5rem; }
.contact-cta p   { font-size: 0.95rem; color: var(--muted); margin-bottom: 1.5rem; max-width: 480px; margin-left: auto; margin-right: auto; }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer { border-top: 3px dashed var(--border); padding: 4rem 1.25rem 3rem; background: var(--secondary); box-shadow: inset 0 8px 0px rgba(0,0,0,0.03); }
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; margin-bottom: 2rem; max-width: var(--max-w); margin-left: auto; margin-right: auto; }
.footer-heading { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1rem; }
.footer-text { font-size: 0.875rem; color: var(--muted); line-height: 1.7; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { font-size: 0.875rem; text-decoration: none; color: var(--muted); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; border-top: 2px solid var(--border); padding-top: 1.5rem; max-width: var(--max-w); margin: 0 auto; flex-wrap: wrap; gap: 1rem; }
.footer-copy  { font-size: 0.8rem; color: var(--muted); }
.footer-socials { display: flex; gap: 0.5rem; }
.footer-socials a {
  width: 38px; height: 38px;
  border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--fg);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  font-size: 0.9rem;
}
.footer-socials a:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ── Blog Listing ─────────────────────────────────────────── */
.blog-header  { margin-bottom: 3rem; }
.blog-header h1 { margin-bottom: 0.75rem; }
.blog-intro   { font-size: 1.05rem; color: var(--muted); max-width: 560px; line-height: 1.7; }
.blog-grid    { display: flex; flex-direction: column; gap: 1rem; }
.blog-card    { display: block; text-decoration: none; color: var(--fg); }
.blog-card:hover { color: var(--fg); }
.blog-card-inner { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: flex-start; }
.blog-title   { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.5rem; line-height: 1.3; }
.blog-card:hover .blog-title { color: var(--accent); }
.blog-excerpt { font-size: 0.95rem; color: var(--muted); margin-bottom: 0.75rem; line-height: 1.6; }
.blog-tags    { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.blog-meta    { text-align: right; display: flex; flex-direction: column; gap: 0.3rem; white-space: nowrap; flex-shrink: 0; }
.blog-date    { font-size: 0.8rem; font-family: var(--font-mono); color: var(--muted); }
.blog-read    { font-size: 0.8rem; font-weight: 700; color: var(--muted); }

/* ── Single Blog Post ─────────────────────────────────────── */
.post-container { max-width: 800px; margin: 0 auto; padding: 3rem 1.25rem 5rem; }
.post-breadcrumb { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 2rem; font-size: 0.8rem; }
.post-breadcrumb a { color: var(--muted); text-decoration: none; }
.post-breadcrumb a:hover { color: var(--accent); }
.post-breadcrumb span { color: var(--muted); }
.post-header  { margin-bottom: 2.5rem; padding-bottom: 2rem; border-bottom: var(--border-w) solid var(--border); }
.post-header h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 1rem; }
.post-header-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem; font-size: 0.85rem; color: var(--muted); margin-bottom: 1rem; }
.post-header-meta strong { color: var(--fg); }
.post-body {  font-size: 1.05rem; line-height: 1.8; }
.post-body h1, .post-body h2 { margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--border); font-size: 1.6rem; }
.post-body h3 { margin: 2rem 0 0.75rem; font-size: 1.25rem; }
.post-body h4 { margin: 1.5rem 0 0.5rem; font-size: 1.1rem; }
.post-body p  { margin-bottom: 1.25rem; }
.post-body ul, .post-body ol { margin: 0 0 1.25rem 1.5rem; }
.post-body li { margin-bottom: 0.4rem; }
.post-body strong { font-weight: 700; }
.post-body em { font-style: italic; }
.post-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--secondary);
  border: 1px solid var(--border);
  padding: 0.15em 0.4em;
  border-radius: 2px;
  color: var(--fg);
}
html.dark .post-body code {
  background: #2a2a2a;
  border-color: #444;
  color: #e0e0e0;
}
.post-body pre {
  background: var(--fg);
  color: var(--bg);
  padding: 1.25rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  border: var(--border-w) solid var(--border);
  box-shadow: var(--shadow-sm);
}
html.dark .post-body pre {
  background: #111;
  color: #e8e8e8;
  border-color: #333;
}
.post-body pre code { background: transparent; border: none; padding: 0; color: inherit; }
.post-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--secondary);
  font-style: italic;
  color: var(--muted);
}
html.dark .post-body blockquote {
  background: #1e1e1e;
  border-left-color: var(--accent);
  color: #aaa;
}
.post-body a { color: var(--accent); }
.post-body hr { border: none; border-top: var(--border-w) solid var(--border); margin: 2rem 0; }
.post-footer  { margin-top: 3rem; padding-top: 2rem; border-top: var(--border-w) solid var(--border); }

/* ── Section Headings ─────────────────────────────────────── */
.section-title { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 0.75rem; }
.section-lead  { font-size: 1rem; color: var(--muted); margin-bottom: 2.5rem; }

/* ── Utility ──────────────────────────────────────────────── */
.flex        { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1       { gap: 0.5rem; }
.gap-2       { gap: 1rem; }
.mt-1        { margin-top: 0.5rem; }
.mt-2        { margin-top: 1rem; }
.mt-3        { margin-top: 1.5rem; }
.mb-1        { margin-bottom: 0.5rem; }
.mb-2        { margin-bottom: 1rem; }
.mb-3        { margin-bottom: 1.5rem; }
.text-muted  { color: var(--muted); }
.text-accent { color: var(--accent); }
.font-mono   { font-family: var(--font-mono); }
.font-bold   { font-weight: 700; }
.text-sm     { font-size: 0.875rem; }
.text-xs     { font-size: 0.75rem; }
.uppercase   { text-transform: uppercase; letter-spacing: 0.08em; }
.sr-only     { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .header-nav    { display: none; }
  .mobile-menu-btn { display: flex; }

  .hero-grid     { grid-template-columns: 1fr; }
  .hero-image    { display: none; }
  .hero-stats    { grid-template-columns: repeat(3, 1fr); }

  .about-grid    { grid-template-columns: 1fr; }
  .edu-grid      { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: repeat(2, 1fr); }
  .skill-detail-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr; }
  .contact-grid  { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 1.5rem; }
  .blog-card-inner { grid-template-columns: 1fr; }
  .blog-meta     { text-align: left; flex-direction: row; gap: 1rem; }
}

@media (max-width: 480px) {
  .hero-stats    { grid-template-columns: 1fr; }
  .skills-grid   { grid-template-columns: 1fr; }
  h1 { font-size: 2.2rem; }
}

/* ── Animations ───────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.6s ease forwards; }
.fade-up-delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-up-delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-up-delay-3 { animation-delay: 0.3s; opacity: 0; }

/* ── PDF Viewer Modal ────────────────────────────────────────── */
.pdf-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 0.2s ease;
}
.pdf-overlay.open { display: flex; align-items: center; justify-content: center; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.pdf-modal {
  background: var(--card-bg);
  border: var(--border-w) solid var(--border);
  box-shadow: -8px 8px 0px rgba(0,0,0,0.4);
  width: min(92vw, 880px);
  height: min(92vh, 700px);
  display: flex;
  flex-direction: column;
  animation: slideUp 0.25s ease;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.pdf-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-bottom: var(--border-w) solid var(--border);
  background: var(--secondary);
  gap: 1rem;
  flex-shrink: 0;
}
.pdf-modal-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg);
  flex: 1;
}
.pdf-modal-actions { display: flex; gap: 0.5rem; align-items: center; }
.pdf-modal-body {
  flex: 1;
  overflow: hidden;
  position: relative;
}
.pdf-modal-body iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}
.pdf-close-btn {
  width: 36px; height: 36px;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  transition: background var(--transition), color var(--transition);
  flex-shrink: 0;
  padding: 0;
}
.pdf-close-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
html.dark .pdf-modal { box-shadow: -8px 8px 0px rgba(0,0,0,0.7); }
html.dark .pdf-modal-header { background: #1a1a1a; border-bottom-color: #333; }

/* ── Dark Mode Extra Overrides ─────────────────────────────── */
html.dark .section-alt { background: #131313; }
html.dark .section     { border-color: #2a2a2a; }
html.dark .edu-card    { background: #1a1a1a; border-color: #333; }
html.dark .lang-bar    { background: #2e2e2e; }
html.dark .exp-header  { border-bottom-color: #2e2e2e; }
html.dark .info-grid   { border-top-color: #2e2e2e; }
html.dark .lang-item   { border-bottom-color: #2a2a2a; }
html.dark .hero-stats  { border-top-color: #2e2e2e; }
html.dark .portfolio-company { border-bottom-color: #2e2e2e; }
html.dark .metrics-box { background: #1a1a1a; border-color: #333; }
html.dark .blog-card   { color: var(--fg); }
html.dark .blog-card:hover .blog-title { color: var(--accent); }
html.dark .post-header { border-bottom-color: #2e2e2e; }
html.dark .post-footer { border-top-color: #2e2e2e; }
html.dark .post-body h1,
html.dark .post-body h2 { border-bottom-color: #2e2e2e; }
html.dark .hero-label  { border-color: #3a3a3a; color: var(--muted); }
html.dark .badge       { border-color: #3a3a3a; }
html.dark .contact-card { color: var(--fg); }
html.dark .footer-socials a { border-color: #3a3a3a; }
html.dark .footer-bottom   { border-top-color: #2a2a2a; }
html.dark .filter-bar .tag { background: #1e1e1e; }
html.dark input,
html.dark textarea,
html.dark select {
  background: #1e1e1e;
  color: var(--fg);
  border-color: #3a3a3a;
}
html.dark input::placeholder,
html.dark textarea::placeholder { color: #555; }

/* ── Photo Hover Reveal ──────────────────────────────────── */
.photo-reveal-card {
  position: relative;
  cursor: pointer;
  overflow: hidden;
}
.hero-photo {
  filter: blur(10px) brightness(0.65);
  transform: scale(1.08);
  transition: filter 0.55s cubic-bezier(0.4,0,0.2,1),
              transform 0.55s cubic-bezier(0.4,0,0.2,1);
  will-change: filter, transform;
}
.photo-reveal-card:hover .hero-photo,
.photo-reveal-card:focus-within .hero-photo {
  filter: blur(0px) brightness(1);
  transform: scale(1);
}
.photo-reveal-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.12);
  transition: opacity 0.45s ease;
  pointer-events: none;
  z-index: 2;
}
.photo-reveal-card:hover .photo-reveal-overlay,
.photo-reveal-card:focus-within .photo-reveal-overlay {
  opacity: 0;
}
.photo-reveal-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,0,0,0.72);
  border: 2px solid rgba(255,255,255,0.7);
  padding: 0.9rem 1.5rem;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: pulseHint 2.2s ease-in-out infinite;
}
.reveal-icon { font-size: 1.6rem; line-height: 1; }
.reveal-text {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #fff;
  white-space: nowrap;
}
@keyframes pulseHint {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255,255,255,0.2); }
  50%       { transform: scale(1.04); box-shadow: 0 0 0 6px rgba(255,255,255,0); }
}

/* ── Skeleton Screens & Content Loaders ──────────────────── */

/* Shimmer Animation */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton-shimmer {
  background: linear-gradient(90deg, 
    var(--card-bg) 25%, 
    var(--secondary) 50%, 
    var(--card-bg) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s infinite linear;
}

html.dark .skeleton-shimmer {
  background: linear-gradient(90deg, 
    #1c1c1c 25%, 
    #2c2c2c 50%, 
    #1c1c1c 75%
  );
  background-size: 200% 100%;
}

/* Skeleton Elements */
.skeleton-line {
  height: 16px;
  margin-bottom: 0.75rem;
  border-radius: 2px;
  width: 100%;
  display: block;
}

.skeleton-line.skeleton-title {
  height: 24px;
  margin-bottom: 1.25rem;
  width: 60%;
}

.skeleton-line.skeleton-text {
  height: 12px;
}

.skeleton-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin-bottom: 1rem;
  display: block;
}

/* Hide content initially when JS is enabled */
body.js-enabled .section[data-animate] .section-content {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.215, 0.610, 0.355, 1), 
              transform 0.6s cubic-bezier(0.215, 0.610, 0.355, 1);
  pointer-events: none;
}

/* Show skeleton when loading and JS is enabled */
body.js-enabled .section[data-animate] .section-skeleton {
  display: block;
  opacity: 1;
  transition: opacity 0.4s ease;
}

/* Hide skeleton when JS is disabled */
body:not(.js-enabled) .section-skeleton {
  display: none !important;
}

/* Reveal content when loaded */
body.js-enabled .section[data-animate].loaded .section-content {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

body.js-enabled .section[data-animate].loaded .section-skeleton {
  opacity: 0;
  pointer-events: none;
}

/* ── Contact Form Modal ────────────────────────────────────── */
.contact-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 0.2s ease;
}
.contact-overlay.open { display: flex; align-items: center; justify-content: center; }

.contact-modal {
  background: var(--card-bg);
  border: var(--border-w) solid var(--border);
  box-shadow: -8px 8px 0px rgba(0,0,0,0.4);
  width: min(92vw, 550px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.25s ease;
}

.contact-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: var(--border-w) solid var(--border);
  background: var(--secondary);
  flex-shrink: 0;
}

.contact-modal-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--fg);
  margin: 0;
}

.contact-close-btn {
  width: 36px; height: 36px;
  border: 2px solid var(--border);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  transition: background var(--transition), color var(--transition);
  padding: 0;
}
.contact-close-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.contact-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.contact-form .form-group {
  margin-bottom: 1.25rem;
}
.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--fg);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  background: var(--bg);
  color: var(--fg);
  border: 2px solid var(--border);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: -3px 3px 0px rgba(0,0,0,0.2);
}

.form-result {
  padding: 1rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border: 2px solid var(--border);
  text-align: center;
}
.form-result.success { background: #dcfce7; color: #166534; border-color: #166534; }
.form-result.error { background: #fee2e2; color: #991b1b; border-color: #991b1b; }

/* intl-tel-input overrides for Neobrutalism */
.iti { width: 100%; display: block; }
.iti__flag-container { padding: 1px; }
.iti__selected-flag { background: var(--secondary) !important; border-right: 2px solid var(--border); }
.iti__country-list {
  background: var(--card-bg) !important;
  border: 2px solid var(--border) !important;
  color: var(--fg) !important;
  box-shadow: -4px 4px 0px rgba(0,0,0,0.3) !important;
}
.iti__country.iti__highlight { background: var(--accent) !important; color: #fff !important; }
.iti__divider { border-bottom-color: var(--border) !important; }

/* Dark mode overrides for modal and intl-tel-input */
html.dark .contact-modal { box-shadow: -8px 8px 0px rgba(0,0,0,0.7); }
html.dark .contact-modal-header { background: #1a1a1a; border-bottom-color: #333; }
html.dark .contact-form input,
html.dark .contact-form textarea { background: #1e1e1e; border-color: #444; color: #fff; }
html.dark .contact-form input:focus,
html.dark .contact-form textarea:focus { border-color: var(--accent); box-shadow: -3px 3px 0px rgba(0,0,0,0.5); }
html.dark .iti__selected-flag { background: #2a2a2a !important; border-color: #444; }
html.dark .form-result.success { background: #064e3b; color: #34d399; border-color: #34d399; }
html.dark .form-result.error { background: #7f1d1d; color: #fca5a5; border-color: #fca5a5; }

/* ── Blog Filter Dropdown ─────────────────────────────── */
.custom-select-wrapper {
  position: relative;
  max-width: 350px;
}
.blog-tag-select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 0.85rem 3rem 0.85rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--fg);
  background: var(--card-bg);
  border: 2px solid var(--border);
  box-shadow: -4px 4px 0px rgba(0,0,0,0.3);
  cursor: pointer;
  transition: all var(--transition);
  border-radius: 0;
}
.blog-tag-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: -2px 2px 0px rgba(0,0,0,0.2);
}
.custom-select-icon {
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  pointer-events: none;
  color: var(--fg);
}
html.dark .blog-tag-select {
  box-shadow: -4px 4px 0px rgba(0,0,0,0.6);
}

/* ── Markdown Tables ──────────────────────────────────────────── */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin-bottom: 2.5rem !important;
  border: 2px solid var(--border);
  box-shadow: -6px 6px 0px rgba(0,0,0,0.3);
  background: var(--bg);
}
.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
  margin: 0;
}
.table th, .table td {
  padding: 1rem 1.25rem;
  border-bottom: 2px solid var(--border);
  border-right: 2px solid var(--border);
  vertical-align: top;
}
.table th:last-child, .table td:last-child {
  border-right: none;
}
.table tbody tr:last-child td {
  border-bottom: none;
}
.table thead th {
  background: var(--secondary);
  font-family: var(--font-mono);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--fg);
  border-bottom: 3px solid var(--border);
}
.table tbody tr:nth-child(even) {
  background: var(--card-bg);
}
.table tbody tr:hover {
  background: rgba(0, 0, 0, 0.03);
}
html.dark .table tbody tr:hover {
  background: rgba(255, 255, 255, 0.05);
}
html.dark .table-responsive {
  box-shadow: -6px 6px 0px rgba(0,0,0,0.7);
}

/* ── Marketing Funnels & Flowcharts ───────────────────────────── */
.marketing-funnel {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  margin: 3rem 0;
  padding: 1rem 0;
}
.funnel-step {
  background: #8e2d2d; /* Soft Maroon */
  color: #fff;
  padding: 1.25rem 2rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  border: 3px solid var(--border);
  box-shadow: -4px 4px 0px rgba(0,0,0,0.3);
  text-align: center;
  position: relative;
  z-index: 2;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  max-width: 450px;
}
.funnel-step:hover {
  transform: translate(2px, -2px);
  box-shadow: -6px 6px 0px rgba(0,0,0,0.3);
}

/* The downward arrow between steps */
.funnel-step:not(:last-child)::after {
  content: "↓";
  position: absolute;
  bottom: -2.3rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--fg);
  font-size: 1.75rem;
  font-weight: 900;
  z-index: 1;
}
html.dark .funnel-step {
  box-shadow: -4px 4px 0px rgba(0,0,0,0.7);
}
html.dark .funnel-step:hover {
  box-shadow: -6px 6px 0px rgba(0,0,0,0.7);
}