/*
  Jan-Niklas Becker — Space Landing Styles
  Dark mode only, neon accents, subtle stars and glow.
*/
:root{
  --bg: #0b0f17;
  --bg-2: #0f1522;
  --text: #d9e2ff;
  --muted: #9fb0d7;
  --neon: #6a7dff;       /* Neon blue */
  --neon-2: #9a5bff;     /* Neon violet */
  --accent: #4be1ff;     /* Cyan accent */
  --card: #121a24;
  --border: rgba(108,130,255,0.25);
  --shadow: rgba(0,0,0,0.6);
  --glow: 0 0 24px rgba(106,125,255,0.35), 0 0 50px rgba(154,91,255,0.25);
  --radius: 14px;
  --radius-sm: 10px;
  --container: 1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{height:100%}
body{
  margin:0; font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Arial, sans-serif; 
  color:var(--text); background: radial-gradient(1200px 800px at 75% -10%, rgba(154,91,255,0.12), transparent), var(--bg);
  background-attachment: fixed;
}

.container{width:100%; max-width:var(--container); margin:0 auto; padding: 0 24px}
.section{position:relative; padding: 96px 0}
.section-title{font-family:'Orbitron', sans-serif; font-weight:700; letter-spacing:0.04em; font-size: clamp(24px, 3vw, 32px); margin: 0 0 28px; text-shadow: var(--glow)}

/* Header */
.site-header{position:sticky; top:0; z-index:20; display:flex; justify-content:space-between; align-items:center; gap:16px; padding:14px 24px; background: linear-gradient(to bottom, rgba(11,15,23,0.8), rgba(11,15,23,0.2)); backdrop-filter: blur(8px); border-bottom:1px solid var(--border)}
.logo{display:flex; align-items:center; gap:10px; color:var(--text); text-decoration:none}
.logo-emph{font-family:'Orbitron', sans-serif; font-weight:800; background: linear-gradient(90deg, var(--neon), var(--neon-2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.logo-text{opacity:.8; font-weight:500}
.site-nav a{color:var(--muted); text-decoration:none; margin-left:18px; padding:6px 10px; border-radius:8px; transition: 180ms ease; border:1px solid transparent}
.site-nav a:hover{color:var(--text); border-color:var(--border); background: rgba(106,125,255,0.08)}

/* Background decorative */
.bg{position:fixed; inset:0; pointer-events:none; z-index:-2}
.bg-stars{background-image: radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.8), transparent), radial-gradient(1.5px 1.5px at 70% 80%, rgba(255,255,255,0.7), transparent), radial-gradient(1px 1px at 85% 15%, rgba(255,255,255,0.5), transparent), radial-gradient(1.8px 1.8px at 35% 60%, rgba(255,255,255,0.65), transparent)}
.bg-glow{z-index:-1; background: radial-gradient(600px 300px at 20% 20%, rgba(75,225,255,0.08), transparent), radial-gradient(900px 500px at 80% 10%, rgba(106,125,255,0.12), transparent)}

/* Hero */
.hero{padding-top: 120px}
.hero-grid{display:grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items:center}
.headline{font-family:'Orbitron', sans-serif; font-size: clamp(36px, 6vw, 64px); line-height:1.05; margin:0 0 10px}
.gradient-text{background: linear-gradient(90deg, var(--neon), var(--neon-2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.subtitle{color:var(--muted); margin:0 0 6px; font-weight:500}
.lede{color: #c6d4ff; margin: 0 0 20px; max-width: 60ch}
.hero-cta{display:flex; gap:12px}

.avatar-wrap{width:min(320px, 80%); aspect-ratio:1; border-radius:50%; background: linear-gradient(145deg, rgba(106,125,255,0.2), rgba(154,91,255,0.2)); padding:10px; box-shadow: var(--glow)}
.avatar-wrap img{width:100%; height:100%; object-fit:cover; display:block; border-radius:50%; filter: saturate(1.1);}

/* Cards */
.card-grid{display:grid; grid-template-columns: repeat(5, 1fr); gap:18px}
.card{background: linear-gradient(180deg, rgba(18,26,36,0.8), rgba(18,26,36,0.6)); border:1px solid var(--border); border-radius: var(--radius); padding:18px; box-shadow: 0 10px 30px var(--shadow); transform: translateY(0); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease}
.card:hover{transform: translateY(-6px); box-shadow: 0 14px 40px rgba(106,125,255,0.22)}
.card-ico{font-size:26px; margin-bottom: 6px}
.card h3{margin:4px 0 6px; font-size: 18px}
.tags{color:var(--muted); margin:0 0 12px; font-size: 14px}
.progress{height:10px; background:rgba(106,125,255,0.15); border-radius:999px; overflow:hidden; border:1px solid var(--border)}
.progress span{display:block; height:100%; width:var(--p, 50%); background: linear-gradient(90deg, var(--neon), var(--neon-2)); box-shadow: var(--glow)}

/* Projects */
.projects-grid{display:grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap:24px}
.project-card{background: linear-gradient(180deg, rgba(18,26,36,0.8), rgba(18,26,36,0.6)); border:1px solid var(--border); border-radius: var(--radius); padding:24px; box-shadow: 0 10px 30px var(--shadow); transition: transform .3s ease, box-shadow .3s ease}
.project-card:hover{transform: translateY(-6px); box-shadow: 0 14px 40px rgba(106,125,255,0.22)}
.project-media{height:180px; background: linear-gradient(135deg, rgba(106,125,255,0.15), rgba(154,91,255,0.15)); border-radius: var(--radius-sm); margin-bottom:16px}
.project-body h3{margin:0 0 12px; font-size:20px}
.project-body p{color:var(--muted); line-height:1.6; margin:0}

/* Pills */
.pill-list{display:flex; flex-wrap:wrap; gap:12px}
.pill{border:1px solid var(--border); border-radius:999px; padding:10px 14px; background: rgba(18,26,36,0.6); box-shadow: 0 6px 24px var(--shadow)}

/* Buttons */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:12px 16px; border-radius: 12px; border:1px solid var(--border); text-decoration:none; color:var(--text); font-weight:600; letter-spacing:.02em; transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease}
.btn:hover{transform: translateY(-2px)}
.btn-neon{background: linear-gradient(90deg, rgba(106,125,255,0.25), rgba(154,91,255,0.25)); box-shadow: var(--glow)}
.btn-neon:hover{background: linear-gradient(90deg, rgba(106,125,255,0.35), rgba(154,91,255,0.35)); border-color: rgba(154,91,255,0.45)}
.btn-ghost{background: transparent}
.btn-ghost:hover{background: rgba(106,125,255,0.12); border-color: rgba(106,125,255,0.45)}

/* Contact */
.contact-text{color:var(--muted)}
.contact-actions{display:flex; gap:12px; flex-wrap:wrap}

/* Footer */
.site-footer{border-top:1px solid var(--border); padding:24px 0; background: linear-gradient(to top, rgba(11,15,23,0.7), rgba(11,15,23,0.2))}
.site-footer p{margin:0; color:var(--muted)}

/* Reveal animations */
.reveal{opacity:0; transform: translateY(12px); transition: opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1; transform: translateY(0)}

/* Responsive */
@media (max-width: 1024px){
  .card-grid{grid-template-columns: repeat(3, 1fr)}
  .hero-grid{grid-template-columns: 1fr; text-align:center}
  .hero-cta{justify-content:center}
  .avatar-wrap{margin: 18px auto 0}
}
@media (max-width: 640px){
  .section{padding: 72px 0}
  .site-nav a{margin-left:8px}
  .card-grid{grid-template-columns: 1fr 1fr}
}
@media (max-width: 420px){
  .card-grid{grid-template-columns: 1fr}
}