:root{
  --bg:#0b1020; --bg-2:#0f172a; --text:#e5e7eb; --muted:#94a3b8; --brand:#22d3ee; --card:#111827; --link:#7dd3fc; --border:#1f2937;
  --shadow: 0 4px 12px rgba(0,0,0,.15);
}
[data-theme="light"]{
  --bg:#f8fafc; --bg-2:#ffffff; --text:#0f172a; --muted:#475569; --brand:#0ea5e9; --card:#ffffff; --link:#0369a1; --border:#e2e8f0;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0}
header{position:sticky;top:0;backdrop-filter:saturate(180%) blur(8px);background:color-mix(in hsl, var(--bg-2) 85%, transparent);border-bottom:1px solid var(--border);z-index:10;padding:16px 24px}
.nav{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav a.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);text-decoration:none;transition:opacity 0.2s ease}
.nav a.brand:hover{opacity:0.8}
.nav ul{list-style:none;display:flex;gap:18px;margin:0;padding:0;align-items:center}
.nav ul li{display:flex;align-items:center}
.nav ul li a{display:flex;align-items:center;padding:8px 0}
.menu-toggle{display:none;border:1px solid var(--border);border-radius:10px;background:var(--card);padding:8px 10px;color:var(--text);font-size:1.2rem}
.menu-toggle:focus{outline:2px solid var(--brand)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border:1px solid var(--border);border-radius:12px;background:linear-gradient(180deg, color-mix(in srgb, var(--card) 96%, #0000), color-mix(in srgb, var(--card) 92%, #0000));box-shadow:var(--shadow);cursor:pointer}
.btn:hover{transform:translateY(-1px)}
[data-theme="light"] .btn{background:linear-gradient(180deg, color-mix(in srgb, var(--card) 98%, #0000), color-mix(in srgb, var(--card) 95%, #0000));border-color:color-mix(in srgb, var(--border) 80%, #0000)}
[data-theme="light"] .btn{filter:contrast(1.2) brightness(0.8)}
[data-theme="light"] .hero{padding:0 0 80px;margin-top:-1px;width:100vw;left:50%;transform:translateX(-50%)}
[data-theme="light"] .hero::before{width:100vw;margin-left:calc(-50vw + 50%);background:radial-gradient(ellipse 800px 600px at top right, rgba(0, 0, 0, 0.08) 0%, transparent 60%), radial-gradient(ellipse 600px 400px at bottom left, rgba(0, 0, 0, 0.04) 0%, transparent 50%)}
[data-theme="light"] .hero h1{color:#1a202c;background:linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #4a5568 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% 200%;animation:gradientShift 4s ease-in-out infinite}
#themeBtn{font-size:1.1rem;transition:transform 0.3s ease;background:var(--card) !important;border:1px solid var(--border) !important;filter:none !important}
#themeBtn:hover{transform:scale(1.1)}
[data-theme="light"] #themeBtn{background:#ffffff !important;border:1px solid #e2e8f0 !important;box-shadow:0 2px 4px rgba(0,0,0,0.1) !important;filter:none !important}
.quick-response{margin-top:24px;background:linear-gradient(135deg, #1a202c 0%, #2d3748 100%);border:1px solid #4a5568;color:#ffffff}
.quick-response h3{color:#ffffff;margin-bottom:8px}
.quick-response p{color:#e2e8f0;margin:0}
[data-theme="light"] .quick-response{background:linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);border:1px solid #e2e8f0;color:#2d3748}
[data-theme="light"] .quick-response h3{color:#1a202c;margin-bottom:8px}
[data-theme="light"] .quick-response p{color:#4a5568;margin:0}
.tag{padding:.25rem .6rem;border:1px solid var(--border);border-radius:999px;color:var(--muted);font-size:.8rem}
.hero{position:relative;padding:0 0 80px;overflow:hidden;min-height:500px;margin-top:-1px;width:100vw;left:50%;transform:translateX(-50%)}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;width:100vw;height:100%;background:radial-gradient(ellipse 800px 600px at top right, rgba(0, 0, 0, 0.12) 0%, transparent 60%), radial-gradient(ellipse 600px 400px at bottom left, rgba(0, 0, 0, 0.06) 0%, transparent 50%);pointer-events:none;z-index:1;margin-left:calc(-50vw + 50%)}
.hero-content{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;min-height:400px;max-width:1100px;margin:0 auto;padding:60px 24px 0}
.hero-text{display:flex;flex-direction:column;gap:32px}
.hero h1{font-size:clamp(40px,6vw,64px);line-height:1.1;margin:0;font-weight:900;color:#ffffff;background:linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #cbd5e0 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% 200%;animation:gradientShift 4s ease-in-out infinite}
@keyframes gradientShift{0%, 100%{background-position:0% 50%}50%{background-position:100% 50%}}
.hero p{color:var(--muted);margin:0;font-size:1.3rem;line-height:1.6}
.card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.grid{display:grid;gap:18px}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
h2{margin:34px 0 10px;font-size:1.6rem}
section{padding:28px 24px;border-bottom:1px solid var(--border)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;background:var(--card);border:1px solid var(--border);border-radius:50px;color:var(--text);font-size:0.9rem;font-weight:600;width:fit-content;backdrop-filter:blur(10px);box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.hero-highlights{display:flex;flex-wrap:wrap;gap:16px;margin-top:8px}
.highlight{padding:8px 16px;background:var(--card);border:1px solid var(--border);border-radius:25px;color:var(--text);font-weight:600;font-size:0.9rem;box-shadow:0 2px 4px rgba(0,0,0,0.1)}
footer{padding:30px 24px;color:var(--muted)}
.chip{border:1px solid var(--border);padding:.3rem .6rem;border-radius:12px;margin-right:8px;color:var(--muted)}
.placeholder{width:128px;height:128px;border-radius:18px;border:1px dashed var(--border);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;margin:0 auto}
.profile-photo{width:128px;height:128px;border-radius:18px;object-fit:cover;display:block;margin:0 auto}
.row{display:flex;gap:18px;flex-wrap:wrap}
.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size:.95rem}
.muted{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* Blog post cover images */
.post-cover{width:100%;height:180px;object-fit:cover;border-radius:12px;border:1px solid var(--border);display:block;background:var(--bg-2);margin:-6px -6px 12px -6px}

/* Generic card cover images */
.card-cover{width:calc(100% + 44px);height:160px;object-fit:cover;border-radius:18px 18px 0 0;border:1px solid var(--border);border-bottom:none;display:block;background:var(--bg-2);margin:-22px -22px 12px -22px}

/* Featured project card */
.featured{margin-bottom:32px}
.featured .featured-cover{width:calc(100% + 44px);height:280px;object-fit:cover;border-radius:18px 18px 0 0;border:1px solid var(--border);border-bottom:none;display:block;background:var(--bg-2);margin:-22px -22px 14px -22px}
.featured h3{margin-top:6px}

/* Reading cards (Medium-like) */
.reading-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.reading-card{padding:0}
.reading-cover{width:100%;height:220px;object-fit:cover;border-radius:18px 18px 0 0;display:block}
.reading-body{padding:18px}
.author-row{display:flex;align-items:center;gap:10px;margin:2px 0 8px}
.author-avatar{width:28px;height:28px;border-radius:999px;object-fit:cover}
.reading-title{font-size:1.25rem;line-height:1.3;margin:8px 0 6px}
.reading-sub{color:var(--muted);margin:0 0 10px}
.reading-meta{color:var(--muted);font-size:.9rem}

/* Hero visual section */
.hero-visual{position:relative;display:flex;flex-direction:column;align-items:center;gap:32px}
.profile-container{position:relative;display:flex;flex-direction:column;align-items:center;gap:24px}
.profile-glow{position:absolute;top:50%;left:50%;transform:translate(-50%, -50%);width:200px;height:200px;background:radial-gradient(circle, color-mix(in srgb, var(--brand) 20%, transparent) 0%, transparent 70%);border-radius:50%;animation:pulse 3s ease-in-out infinite}
@keyframes pulse{0%, 100%{opacity:0.3;transform:translate(-50%, -50%) scale(1)}50%{opacity:0.6;transform:translate(-50%, -50%) scale(1.1)}}
.profile-card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:0;text-align:center;backdrop-filter:blur(20px);box-shadow:var(--shadow);width:100%;max-width:320px;margin:0 auto;display:flex;flex-direction:column;align-items:center;overflow:hidden}
.profile-photo{width:100%;height:280px;object-fit:cover;object-position:center 20%;border-radius:0;margin:0;border:none;box-shadow:none}
.profile-content{padding:30px 30px 20px;width:100%}
.profile-location{color:var(--muted);margin:0 0 24px;font-size:1rem}
.stats-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:12px;margin:20px auto 0;width:100%;justify-items:center;justify-content:center}
.stat-card{background:linear-gradient(135deg, color-mix(in srgb, var(--card) 90%, transparent), color-mix(in srgb, var(--card) 80%, transparent));border:1px solid color-mix(in srgb, var(--border) 50%, transparent);border-radius:20px;padding:16px 12px;text-align:center;backdrop-filter:blur(10px)}
.stat-number{font-size:1.8rem;font-weight:800;color:var(--brand);line-height:1;margin-bottom:4px}
.stat-label{font-size:0.85rem;color:var(--muted)}

/* FAQ Section */
.faq-header {
  text-align: center;
  margin-bottom: 48px;
}

.faq-header h1 {
  font-size: 3rem;
  margin: 0 0 16px 0;
  color: var(--text);
  font-weight: 800;
}

.faq-content {
  margin-bottom: 48px;
}

.faq-container {
  display: grid;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item:hover {
  border-color: var(--brand);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 24px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease;
}

.faq-question:hover {
  background: var(--bg-2);
}

.faq-question h3 {
  margin: 0;
  font-size: 1.2rem;
  color: var(--text);
  font-weight: 600;
  flex: 1;
}

.faq-icon {
  font-size: 1.5rem;
  color: var(--brand);
  font-weight: 300;
  transition: transform 0.3s ease;
  margin-left: 16px;
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background: var(--bg-2);
}

.faq-answer.open {
  max-height: 1000px;
}

.faq-answer-content {
  padding: 0 24px 24px 24px;
}

.faq-answer p {
  margin: 0 0 16px 0;
  line-height: 1.6;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.faq-cta {
  margin-top: 48px;
}

/* Blog Page Styles */
.blog-header {
  margin-bottom: 64px;
}

.blog-hero {
  text-align: center;
  padding: 48px 0;
  background: linear-gradient(135deg, var(--card) 0%, var(--bg-2) 100%);
  border-radius: 24px;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(59, 130, 246, 0.05) 50%, transparent 70%);
  pointer-events: none;
}

.blog-hero h1 {
  font-size: 3.5rem;
  margin: 0 0 20px 0;
  color: var(--text);
  font-weight: 800;
  background: linear-gradient(135deg, var(--text) 0%, var(--brand) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  z-index: 1;
}

.blog-subtitle {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto 32px auto;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.blog-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 32px;
  position: relative;
  z-index: 1;
}

.blog-stats .stat {
  text-align: center;
}

.blog-stats .stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  margin-bottom: 8px;
}

.blog-stats .stat-label {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
}

.blog-posts {
  display: grid;
  gap: 40px;
  margin-bottom: 64px;
}

.blog-card {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 32px;
  align-items: start;
  transition: all 0.3s ease;
  border-radius: 16px;
  overflow: hidden;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.blog-card.featured {
  border: 2px solid var(--brand);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
}

.blog-image-container {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
}

.blog-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--brand);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  z-index: 2;
}

.blog-content {
  padding: 8px 0;
}

.blog-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.blog-meta time {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
}

.reading-time {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  background: var(--bg-2);
  padding: 4px 8px;
  border-radius: 12px;
}

.categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.category {
  background: var(--brand);
  color: white;
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.category:hover {
  background: var(--text);
  transform: translateY(-1px);
}

.blog-content h2 {
  margin: 0 0 16px 0;
  font-size: 1.6rem;
  color: var(--text);
  font-weight: 700;
  line-height: 1.3;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-content h2 {
  color: var(--brand);
}

.blog-excerpt {
  margin: 0 0 20px 0;
  line-height: 1.7;
  color: var(--muted);
  font-size: 1rem;
}

.blog-highlights {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin: 20px 0;
  border-left: 4px solid var(--brand);
}

.blog-highlights h4 {
  margin: 0 0 16px 0;
  font-size: 1.1rem;
  color: var(--text);
  font-weight: 600;
}

.blog-highlights ul {
  margin: 0;
  padding-left: 20px;
}

.blog-highlights li {
  margin: 0 0 8px 0;
  color: var(--muted);
  line-height: 1.5;
}

.blog-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--brand);
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--brand);
  padding: 12px 24px;
  border: 2px solid var(--brand);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: var(--brand);
  color: white;
  transform: translateY(-2px);
}

.blog-cta {
  margin-top: 48px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  margin-top: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .blog-hero h1 {
    font-size: 2.5rem;
  }
  
  .blog-stats {
    flex-direction: column;
    gap: 24px;
  }
  
  .blog-stats .stat-number {
    font-size: 2rem;
  }
  
  .blog-card {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .blog-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  
  .blog-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn-primary,
  .btn-secondary {
    text-align: center;
    width: 100%;
  }
  
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-actions .btn {
    width: 200px;
  }
  
  .case-study-showcase .card > div {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  
  #case-study .card > div {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
  
  .featured-case-study {
    transition: all 0.3s ease;
  }
  
  .featured-case-study:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
  }
}

/* Mobile nav */
@media (max-width: 720px){
  .nav{justify-content:flex-start}
  .menu-toggle{display:inline-flex;order:2;margin-left:auto}
  .nav nav{order:1}
  .nav ul{display:none;position:absolute;top:56px;right:24px;background:var(--bg-2);border:1px solid var(--border);border-radius:12px;padding:12px;flex-direction:column;gap:8px;width:min(88vw,320px);box-shadow:var(--shadow)}
  .nav.open ul{display:flex}
  .nav ul li a, .nav ul li button{width:100%;text-align:left}
  .hero-content{grid-template-columns:1fr;gap:50px}
  .hero-visual{order:2}
  .hero-text{order:1}
  .stats-grid{grid-template-columns:repeat(3, 1fr);gap:12px}
  .profile-card{max-width:100%;width:100%}
  .profile-container{width:100%}
  .profile-photo{height:280px !important;width:100% !important;object-fit:cover !important;object-position:center 20% !important}
  .stat-card{padding:16px 12px}
}