/* Hero */
.hero{
  position:relative;min-height:92vh;display:flex;align-items:center;
  background:var(--bg-dark);color:var(--text-light);overflow:hidden;
  padding-top:calc(var(--header-h) + 40px);padding-bottom:80px;
}
.hero::before{
  content:"";position:absolute;inset:-20%;
  background:
    radial-gradient(50% 40% at 20% 30%, rgba(79,70,229,.45), transparent 60%),
    radial-gradient(40% 35% at 80% 20%, rgba(14,165,233,.35), transparent 60%),
    radial-gradient(45% 40% at 60% 90%, rgba(99,102,241,.25), transparent 60%);
  animation:mesh-shift 18s ease-in-out infinite;filter:blur(20px);z-index:0;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;mask-image:radial-gradient(ellipse at center, #000 40%, transparent 75%);
  z-index:0;
}
.hero .container{position:relative;z-index:1}
.hero h1{color:#fff;max-width:880px}
.hero h1 .grad{background:linear-gradient(120deg,#a5b4fc,#0ea5e9);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);max-width:640px;color:rgba(241,245,249,.78);margin-top:24px}
.hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-meta{display:flex;gap:32px;margin-top:48px;flex-wrap:wrap;color:rgba(241,245,249,.65);font-size:.9rem}
.hero-meta strong{display:block;font-family:var(--font-display);color:#fff;font-size:1.6rem;font-weight:700;line-height:1}
.hero .eyebrow{background:rgba(255,255,255,.06);color:#a5b4fc}

/* Generic light section grids */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head .right{display:flex;gap:10px;align-items:center}

/* Skills */
.skill{
  display:flex;align-items:center;justify-content:center;gap:10px;
  padding:18px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);
  font-family:var(--font-display);font-weight:600;color:var(--text-dark);
  transition:transform .2s var(--ease),border-color .2s,box-shadow .2s;text-align:center;
}
.skill:hover{transform:translateY(-3px);border-color:var(--accent-primary);box-shadow:var(--shadow)}
.skill::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent-primary)}

/* Stats band */
.stats-band{background:var(--bg-dark);color:#fff;border-radius:var(--radius-lg);padding:48px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;overflow:hidden}
.stats-band::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 0%,rgba(14,165,233,.25),transparent 60%);pointer-events:none}
.stat{position:relative;text-align:center}
.stat-num{font-family:var(--font-display);font-size:2.6rem;font-weight:700;background:linear-gradient(120deg,#fff,#a5b4fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{color:rgba(241,245,249,.7);font-size:.9rem;margin-top:6px;letter-spacing:.04em}
@media (max-width:780px){.stats-band{grid-template-columns:repeat(2,1fr);padding:32px}}

/* About */
.about{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
.about-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm)}
.about-card dt{font-family:var(--font-display);font-weight:700;color:var(--text-dark);margin-top:14px}
.about-card dd{color:var(--text-muted);margin-left:0}
@media (max-width:820px){.about{grid-template-columns:1fr}}

/* CTA band */
.cta-band{
  background:linear-gradient(135deg,var(--accent-primary),#7c3aed);color:#fff;border-radius:var(--radius-lg);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;max-width:520px}
.cta-band .btn-primary{background:#fff;color:var(--accent-primary)}
.cta-band .btn-primary:hover{background:#f1f5ff}

/* Project / cert grids */
.project-card{position:relative}
.project-card .card-media{font-size:2.4rem;background:linear-gradient(135deg,#eef2ff,#dbeafe)}

/* Filter bar */
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-bottom:32px}
.filter-bar input[type="search"],.filter-bar select{
  padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;min-width:200px;
}
.filter-bar input[type="search"]{flex:1;min-width:240px}
.filter-bar input:focus,.filter-bar select:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 4px rgba(79,70,229,.12)}

/* Contact page */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}}
.contact-info-card{background:var(--bg-dark);color:#fff;border-radius:var(--radius-lg);padding:32px}
.contact-info-card h3{color:#fff}
.contact-info-card a{color:#a5b4fc}
.contact-info-card .social-row a{color:#fff}

/* Page hero (lighter than home hero) */
.page-hero{
  background:var(--bg-dark);color:#fff;padding:calc(var(--header-h) + 80px) 0 80px;
  position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(40% 60% at 20% 40%, rgba(79,70,229,.4), transparent 60%);
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{color:#fff}
.page-hero p{color:rgba(241,245,249,.75);max-width:600px;margin-top:14px}

/* ---- Blog ---- */
.blog-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media (max-width:780px){.blog-list{grid-template-columns:1fr}}
.blog-card{
  display:block;text-decoration:none;color:inherit;border-radius:var(--radius-lg);
  background:var(--card-bg);border:1px solid var(--border);padding:28px;
  transition:transform .2s var(--ease),border-color .2s,box-shadow .2s;
}
.blog-card:hover{transform:translateY(-3px);border-color:var(--accent-primary);box-shadow:var(--shadow)}
.blog-card h3{font-family:var(--font-display);margin:0 0 10px;color:var(--text-dark)}
.blog-card .blog-meta{display:flex;justify-content:space-between;color:var(--text-muted);font-size:.85rem;margin-top:16px}

/* Post detail */
.post-shell{padding-top:calc(var(--header-h) + 40px)}
.post-container{max-width:760px}
.back-link{display:inline-block;margin-bottom:18px;color:var(--accent-primary);text-decoration:none;font-weight:600}
.back-link:hover{text-decoration:underline}
.post-header h1{font-family:var(--font-display);margin-bottom:8px}
.post-byline{margin-bottom:28px}
.post-content{font-size:1.05rem;line-height:1.75;color:var(--text-dark);white-space:normal;word-wrap:break-word}
.post-actions{margin:32px 0;display:flex;gap:12px;align-items:center}
.like-count{display:inline-block;margin-left:6px;padding:2px 10px;border-radius:999px;background:rgba(255,255,255,.18);font-weight:700;font-size:.85rem}
#likeBtn.liked{background:#ef4444;border-color:#ef4444}
#likeBtn[aria-pressed="true"] .like-count{background:rgba(255,255,255,.25)}

.comments{margin-top:48px;border-top:1px solid var(--border);padding-top:32px}
.comments h2{font-family:var(--font-display);margin-bottom:18px}
.comment-list{list-style:none;padding:0;margin:0 0 32px;display:flex;flex-direction:column;gap:14px}
.comment{padding:16px 18px;border-radius:var(--radius);border:1px solid var(--border);background:#fff}
.comment-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:6px;font-size:.9rem}
.comment p{margin:0;white-space:pre-wrap;color:var(--text-dark)}

.comment-form{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px}
.comment-form h3{font-family:var(--font-display);margin:0 0 14px}
.comment-form .field{margin-bottom:14px}
.comment-form label{display:block;margin-bottom:6px;font-weight:600}
.comment-form input,.comment-form textarea{
  width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-family:inherit;font-size:1rem;background:#fff;
}
.comment-form input:focus,.comment-form textarea:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 4px rgba(79,70,229,.12)}