:root{
  --bg: #0b0f17;
  --panel: rgba(255,255,255,0.03);
  --muted: #8b93a7;
  --neon: #00ff95;
  --accent: #00d184;
  --glass: rgba(255,255,255,0.02);
  --radius: 12px;
  --container: 1100px;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: dark;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: radial-gradient(1200px 800px at 10% 10%, rgba(0,255,149,0.03), transparent 10%), var(--bg);
  color:#e6eef8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
}

/* Mobile-first container sizing */
.container{
  max-width:100%;
  margin:0 auto;
  padding:18px;
}

/* Header - mobile-first */
.site-header{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 0;
  z-index:40;
}

/* Logo */
.logo{
  font-weight:800;
  letter-spacing:1px;
  color:var(--neon);
  text-decoration:none;
  font-size:1.05rem;
}

/* Nav toggle (hamburger) */
.nav-toggle{
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  background:transparent;
  border:1px solid rgba(255,255,255,0.03);
  border-radius:10px;
  color:var(--neon);
  cursor:pointer;
  padding:6px;
}
.nav-toggle:focus{outline:2px solid rgba(0,255,149,0.14); outline-offset:3px}

/* Icon bars */
.nav-toggle .bar{
  display:block;
  width:18px;
  height:2px;
  background:var(--neon);
  border-radius:2px;
  transition: transform .22s ease, opacity .18s ease;
  position:relative;
}
.nav-toggle .bar + .bar{ margin-top:4px }

/* Mobile menu panel (hidden by default) */
.mobile-nav{
  position:fixed;
  inset:0 0 auto 0;
  background:linear-gradient(180deg, rgba(11,15,23,0.96), rgba(11,15,23,0.99));
  padding:72px 18px 28px;
  display:flex;
  flex-direction:column;
  gap:18px;
  transform:translateY(-8%);
  opacity:0;
  pointer-events:none;
  transition:transform .28s cubic-bezier(.2,.9,.2,1), opacity .28s ease;
  border-bottom:1px solid rgba(255,255,255,0.02);
  z-index:35;
}

/* When open */
.mobile-nav.open{
  transform:translateY(0);
  opacity:1;
  pointer-events:auto;
}

/* Mobile nav links */
.mobile-nav a{
  color:#e6eef8;
  text-decoration:none;
  font-weight:600;
  padding:10px 12px;
  border-radius:10px;
}
.mobile-nav a.small{font-weight:500; color:var(--muted)}
.mobile-nav a:hover{background:rgba(0,255,149,0.03); color:var(--neon)}

/* Desktop nav (hidden on small screens) */
.nav-links{
  display:none;
  gap:14px;
  align-items:center;
}
.nav-links a{
  color:var(--muted);
  text-decoration:none;
  padding:6px 10px;
  border-radius:8px;
}

/* Desktop-only buttons (we keep the same classes) */
.button{
  display:inline-block;
  padding:10px 16px;
  border-radius:10px;
  text-decoration:none;
  font-weight:600;
  color:#0b0f17;
  background:var(--neon);
  transition:transform .14s ease, box-shadow .14s ease;
}
.button.ghost{
  background:transparent;
  color:var(--neon);
  border:1px solid rgba(0,255,149,0.08);
  box-shadow:none;
}
.button.primary{background:linear-gradient(90deg,var(--neon),var(--accent))}
.button:hover{transform:translateY(-3px); box-shadow:0 6px 20px rgba(0,255,149,0.06)}

/* Right glass card & hero layout preserved for larger screens */
.glass-card{
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius:14px;
  padding:18px;
  border:1px solid rgba(255,255,255,0.03);
  box-shadow:0 6px 30px rgba(0,0,0,0.6);
  color:var(--muted);
}

/* Hero - stack on mobile (mobile-first) */
.hero{
  display:block;
  padding:28px 0;
}
.display{
  font-size:32px;
  margin:10px 0;
  letter-spacing:0.4px;
  color: #dffefe;
}
.subtitle{color:var(--muted); margin:6px 0 14px}
.intro{max-width:100%;color:#cfeef1}
.cta{display:flex; gap:10px; margin-top:14px; flex-wrap:wrap}

/* Mini features stack */
.mini-features{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  margin-top:18px;
}

/* Skill grids and tools */
.skill-grid{display:grid; grid-template-columns:1fr; gap:8px; list-style:none; padding:0}
.tool-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:12px}
.tool{background:var(--glass); padding:12px; border-radius:10px; color:var(--muted); text-align:center}

/* Projects, posts */
.project-list{list-style:none; padding:0}
.cards{display:grid; grid-template-columns:1fr; gap:12px}
.card{background:var(--panel); padding:12px; border-radius:12px}

/* Footer */
.site-footer{padding:18px 0; border-top:1px solid rgba(255,255,255,0.02); margin-top:18px}
.site-footer p{color:var(--muted); margin:0}

/* Small utilities */
.placeholder{display:flex; align-items:center; justify-content:center; background:linear-gradient(180deg, rgba(255,255,255,0.01), rgba(255,255,255,0.02)); border:1px dashed rgba(255,255,255,0.02); height:140px; color:var(--muted); border-radius:8px}
.tag{display:inline-block; margin-right:8px; color:var(--muted); font-size:13px}
.meta{color:var(--muted); font-size:13px}
.small{font-size:13px; color:var(--muted)}

/* Cursor glow */
.cursor-glow{
  position:fixed; pointer-events:none; width:22px; height:22px; border-radius:50%;
  background:radial-gradient(circle, rgba(0,255,149,0.25) 0%, rgba(0,255,149,0.06) 40%, transparent 60%);
  transform:translate(-50%,-50%); mix-blend-mode:screen; z-index:9999; transition:width .14s ease, height .14s ease, background .14s ease;
}

/* Larger screens - switch to desktop layout */
@media (min-width:960px){
  .container{max-width:var(--container); padding:28px}
  .nav-toggle{display:none}
  .mobile-nav{display:none}
  .nav-links{display:flex}
  .hero{display:grid; grid-template-columns:1fr 360px; gap:28px; padding:48px 0}
  .display{font-size:48px}
  .mini-features{grid-template-columns:repeat(3,1fr)}
  .skill-grid{grid-template-columns:repeat(2,1fr)}
  .tool-grid{grid-template-columns:repeat(3,1fr)}
  .cards{grid-template-columns:repeat(2,1fr)}
}

/* Certifications Section */
.certifications {
  margin-top: 50px;
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

/* Desktop */
@media (min-width: 800px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cert-card {
  background: #111;
  border: 1px solid #222;
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.cert-thumb {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-bottom: 1px solid #222;
}

.cert-info {
  padding: 16px;
}

.cert-info h3 {
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.issuer {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: 12px;
}

.view-btn {
  display: inline-block;
  padding: 8px 14px;
  background: #0d6efd;
  color: white;
  border-radius: 6px;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s ease;
}

.view-btn:hover {
  background: #0956c4;
}

/* Planned Certs */
.planned-list {
  margin-top: 10px;
  padding-left: 18px;
}

.planned-list li {
  margin: 6px 0;
  opacity: 0.85;
  font-size: 1rem;
}