/* styles.css – Premium Dark Mode Portfolio */

:root{
  /* Professional dark color palette */
  --bg: linear-gradient(135deg, #0a0e17 0%, #15192a 50%, #0d1117 100%);
  --surface: rgba(26,31,46,0.95);
  --card: rgba(20,24,35,0.8);
  --muted: #8892b0;
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-bright: #00d9ff;
  --white: #ffffff;
  --radius: 12px;
  --container: 1200px;
  --gap: 24px;
  --transition: 200ms ease;
  --header-bg: rgba(10,13,20,1);
  --footer-bg: rgba(10,13,20,1);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* Global resets */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: var(--bg);
  color:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:48px 24px;
}

/* Full-viewport visuals layer for particles/grid */
.visuals{position:fixed;inset:0;pointer-events:none;z-index:0}
#particle-canvas{width:100%;height:100%;display:block}
.grid-lines{position:fixed;inset:0;background-image:linear-gradient(rgba(59,130,246,0.015) 1px, transparent 1px), linear-gradient(90deg, rgba(59,130,246,0.01) 1px, transparent 1px);background-size:200px 200px;border-radius:0;mix-blend-mode:overlay;opacity:0.3}
.lens-flare{display:none}
.scanlines{display:none}

/* Header */
.site-header{
  background:var(--header-bg);
  position:sticky;top:0;z-index:50;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(59,130,246,0.1);
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{font-weight:700;color:var(--accent-bright);text-decoration:none;font-size:1.15rem;letter-spacing:-0.5px;text-shadow:0 0 12px rgba(0,217,255,0.15)}
.nav-toggle{display:none;background:none;border:1px solid rgba(59,130,246,0.2);color:var(--white);padding:8px 12px;border-radius:8px;cursor:pointer;transition:var(--transition)}
.nav-toggle:hover{background:rgba(59,130,246,0.1)}

.main-nav ul{list-style:none;padding:0;margin:0;display:flex;gap:24px}
.main-nav a{color:var(--accent-light);text-decoration:none;padding:8px 12px;border-radius:6px;transition:var(--transition);font-weight:500;position:relative}
.main-nav a:after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--accent-bright);transition:width 0.3s ease;border-radius:2px}
.main-nav a:hover:after{width:100%}
.main-nav a:hover{color:var(--accent-bright)}

/* Hero */
.hero{padding:100px 0;position:relative;z-index:10;background:linear-gradient(180deg, rgba(59,130,246,0.03) 0%, rgba(0,0,0,0) 100%)}
.hero-grid{display:grid;grid-template-columns:1fr 340px;gap:var(--gap);align-items:center}
.hero-content h1{font-size:2.8rem;margin:0 0 12px;font-weight:600;line-height:1.1}
.title{font-size:2.8rem;color:var(--white);text-shadow:0 4px 20px rgba(0,0,0,0.4);line-height:1.1;font-weight:600}
.title span{color:var(--accent-bright);font-weight:600;margin-left:8px}
.lead{color:var(--muted);margin-bottom:24px;font-size:1.05rem;line-height:1.7}
.cta-row{display:flex;gap:16px}

.btn{display:inline-block;padding:12px 24px;border-radius:8px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:all var(--transition);font-weight:500}
.btn.large{padding:14px 32px;font-size:1.05rem}
.btn.glass{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));border:1px solid rgba(59,130,246,0.2);color:var(--white);box-shadow:0 4px 20px rgba(0,0,0,0.3)}
.btn.primary{background:var(--accent);border-color:var(--accent);box-shadow:0 6px 24px rgba(59,130,246,0.35);font-weight:600}
.btn.primary:hover{background:var(--accent-light);box-shadow:0 10px 40px rgba(59,130,246,0.5);transform:translateY(-3px)}
.btn.light{background:transparent;border-color:var(--accent-bright);color:var(--accent-bright);font-weight:600}
.btn.light:hover{background:rgba(0,217,255,0.08);border-color:var(--accent-bright)}

/* Premium photo badge */
.hero-badge{display:flex;justify-content:center}
.badge{width:280px;height:280px;border-radius:50%;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.badge img{width:95%;height:95%;object-fit:cover;border-radius:50%;filter:drop-shadow(0 0 40px rgba(59,130,246,0.2)) brightness(1.05);border:3px solid rgba(59,130,246,0.3);transform:translateZ(0)}
.badge-glow{position:absolute;inset:-12px;background:radial-gradient(circle at 30% 20%, rgba(59,130,246,0.15), transparent 25%), radial-gradient(circle at 70% 80%, rgba(0,217,255,0.08), transparent 35%);filter:blur(30px);opacity:0.9;z-index:-1}
.badge-depth{position:absolute;inset:0;border-radius:50%;box-shadow:inset 0 -50px 100px rgba(0,0,0,0.5), 0 0 60px rgba(59,130,246,0.15);z-index:-1}
.badge-shine{position:absolute;inset:0;border-radius:50%;background:linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 50%, rgba(0,0,0,0.05) 100%);opacity:0}

/* Sections */
.section{padding:64px 0;position:relative}
.section:nth-child(even){background:linear-gradient(180deg, rgba(59,130,246,0.02) 0%, rgba(0,0,0,0) 100%)}

h2{font-size:2.2rem;margin:0 0 8px;font-weight:600;color:var(--white)}

/* Skills section */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;margin-top:32px}
.skill-category{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));padding:24px;border-radius:10px;border:1px solid rgba(59,130,246,0.15);transition:all var(--transition)}
.skill-category:hover{border-color:rgba(59,130,246,0.3);background:linear-gradient(135deg, rgba(59,130,246,0.12), rgba(59,130,246,0.04));transform:translateY(-2px)}
.skill-category h3{margin:0 0 16px;color:var(--accent-bright);font-size:1.1rem;text-transform:uppercase;letter-spacing:0.8px}
.tech-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.tech-list li{color:var(--muted);font-size:0.95rem;padding-left:14px;position:relative;transition:var(--transition)}
.tech-list li:hover{color:var(--white);padding-left:18px}
.tech-list li:before{content:'→';position:absolute;left:0;color:var(--accent);font-weight:bold}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:24px}
.card{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));padding:24px;border-radius:10px;border:1px solid rgba(59,130,246,0.12);transition:all var(--transition)}
.card:hover{background:linear-gradient(135deg, rgba(59,130,246,0.12), rgba(59,130,246,0.04));border-color:rgba(59,130,246,0.25);transform:translateY(-4px);box-shadow:0 12px 40px rgba(59,130,246,0.1)}
.card h3{margin:0 0 8px;font-size:1.15rem;font-weight:600}
.muted{color:var(--muted)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 420px;gap:var(--gap);align-items:start}
.contact-info{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));padding:24px;border-radius:10px;border:1px solid rgba(59,130,246,0.15)}
.contact-info a{color:var(--accent-light);text-decoration:none;transition:var(--transition)}
.contact-info a:hover{color:var(--accent-bright)}
.contact-form{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));padding:24px;border-radius:10px;border:1px solid rgba(59,130,246,0.15)}
.contact-form label{display:block;margin-bottom:8px;color:var(--muted);font-size:0.9rem;font-weight:600}
.contact-form input,.contact-form textarea{width:100%;padding:12px;border-radius:6px;border:1px solid rgba(59,130,246,0.15);background:rgba(59,130,246,0.03);color:var(--white);margin-bottom:16px;font-family:inherit;transition:all var(--transition)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:rgba(59,130,246,0.4);background:rgba(59,130,246,0.08);box-shadow:0 0 16px rgba(59,130,246,0.1)}
.form-row{text-align:right}

/* Social links */
.social-links{list-style:none;padding:0;margin:12px 0 0;display:flex;gap:12px;flex-wrap:wrap}
.social-links li{display:inline}
.social-links a{color:var(--accent-light);text-decoration:none;padding:8px 14px;border:1.5px solid var(--accent-light);border-radius:6px;transition:var(--transition);display:inline-block;font-weight:500}
.social-links a:hover{background:rgba(96,165,250,0.1);color:var(--accent-bright);border-color:var(--accent-bright)}
.required{color:#ff6b6b}

/* Footer */
.site-footer{
  border-top:1px solid rgba(59,130,246,0.15);
  padding:32px 0;margin-top:64px;
  background:var(--footer-bg);
}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.footer-social{display:flex;gap:16px;margin-top:12px}
.footer-social a{color:var(--accent-light);text-decoration:none;font-weight:500;transition:var(--transition)}
.footer-social a:hover{color:var(--accent-bright)}

/* Projects page */
.hero-projects{padding:80px 0;background:linear-gradient(135deg, rgba(59,130,246,0.05), rgba(59,130,246,0.02))}
.hero-projects h1{font-size:2.8rem;margin:0 0 12px;font-weight:600}
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:28px;margin-top:32px}
.project-card{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));border-radius:10px;border:1px solid rgba(59,130,246,0.12);overflow:hidden;transition:all var(--transition)}
.project-card:hover{border-color:rgba(59,130,246,0.3);transform:translateY(-6px);box-shadow:0 16px 48px rgba(59,130,246,0.15)}
.project-image{width:100%;height:280px;background:linear-gradient(135deg, rgba(59,130,246,0.1), rgba(59,130,246,0.03));display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.project-image img{width:100%;height:100%;object-fit:cover;display:block}
.image-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:var(--muted);background:linear-gradient(135deg, rgba(59,130,246,0.12), rgba(59,130,246,0.05));font-weight:600}

/* Code preview for website project */
.code-preview{width:100%;height:100%;padding:20px;background:linear-gradient(135deg, rgba(10,20,40,0.95), rgba(5,15,35,0.95));overflow:hidden;font-family:'Courier New', Courier, monospace;font-size:0.85rem;line-height:1.8;display:flex;flex-direction:column;justify-content:center;position:relative;box-shadow:inset 0 0 30px rgba(0,217,255,0.1)}
.code-preview::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg, transparent, rgba(0,217,255,0.8), transparent);animation:codeGlitch 3s infinite}
.code-preview::after{content:'< / >';position:absolute;bottom:8px;right:12px;font-size:0.7rem;color:rgba(0,217,255,0.2);letter-spacing:2px}
.code-line{color:var(--accent-light);white-space:nowrap;text-overflow:ellipsis;animation:codeFlicker 0.15s infinite;position:relative}
.code-line:nth-child(1){animation-delay:0s}
.code-line:nth-child(2){animation-delay:0.1s}
.code-line:nth-child(3){animation-delay:0.2s}
.code-line:nth-child(4){animation-delay:0.15s}
.code-line.indent{margin-left:20px}
.code-line.indent::before{content:'→';margin-right:6px;color:rgba(0,217,255,0.4);font-weight:bold}
.code-tag{color:#00d9ff;font-weight:600;text-shadow:0 0 8px rgba(0,217,255,0.5)}
.code-attr{color:#fbbf24;text-shadow:0 0 6px rgba(251,191,36,0.3)}
.code-string{color:#86efac;text-shadow:0 0 6px rgba(134,239,172,0.3)}

@keyframes codeFlicker{0%,100%{opacity:1;text-shadow:0 0 8px rgba(0,217,255,0.4)}50%{opacity:0.95;text-shadow:0 0 12px rgba(0,217,255,0.6)}}
@keyframes codeGlitch{0%{width:0}50%{width:100%}100%{width:0}}
.project-content{padding:24px}
.project-content h2{margin:0 0 6px;font-size:1.3rem}
.project-content > p:last-of-type{margin-bottom:16px}
.project-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.project-tags span{background:rgba(59,130,246,0.12);color:var(--accent-light);padding:5px 12px;border-radius:4px;font-size:0.85rem;border:1px solid rgba(59,130,246,0.15)}
.cta-section{text-align:center;padding:80px 0;background:linear-gradient(135deg, rgba(59,130,246,0.05), rgba(59,130,246,0.02))}
.cta-section h2{margin-bottom:16px}

/* Animations */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.fade-in{opacity:0;animation:fadeInUp 0.6s ease-out forwards}

/* Project detail page */
.project-detail{display:grid;grid-template-columns:1fr 480px;gap:48px;align-items:start}
.project-detail-full{display:block}
.project-detail-image{width:100%;max-height:600px;border-radius:12px;overflow:hidden;box-shadow:0 16px 64px rgba(59,130,246,0.2)}
.project-detail-image img{width:100%;height:100%;object-fit:cover;display:block}
.project-detail-content h2{margin:0 0 8px;font-size:2rem}
.project-detail-content h3{color:var(--accent-bright);font-size:1.2rem}
.project-detail-content p{color:var(--muted);line-height:1.8;margin-bottom:16px}
.project-detail-content ul{padding-left:24px}
.project-detail-content ul li{margin-bottom:10px}

/* Code showcase */
.code-showcase{margin:32px 0}
.code-block{background:linear-gradient(135deg, rgba(59,130,246,0.08), rgba(59,130,246,0.02));border-radius:10px;border:1px solid rgba(59,130,246,0.15);overflow:hidden;margin-bottom:24px;transition:all var(--transition)}
.code-block:hover{border-color:rgba(59,130,246,0.3);box-shadow:0 8px 32px rgba(59,130,246,0.1)}
.code-block h4{margin:0;padding:12px 16px;background:rgba(59,130,246,0.1);color:var(--accent-bright);font-size:0.95rem;font-weight:600;border-bottom:1px solid rgba(59,130,246,0.15)}
.code-block pre{margin:0;padding:16px;overflow-x:auto;background:rgba(0,0,0,0.3)}
.code-block code{font-family:'Courier New', Courier, monospace;font-size:0.85rem;color:var(--white);line-height:1.5}
.hljs{background:transparent !important;color:var(--white)}
.hljs-attr,.hljs-attribute{color:#60a5fa}
.hljs-string{color:#86efac}
.hljs-literal{color:#fbbf24}

@media (max-width:1024px){
  .project-detail{grid-template-columns:1fr;gap:32px}
  .project-detail-image{max-height:400px}
  .code-block{font-size:0.8rem}
  .code-block pre{padding:12px}
}

@media (max-width:720px){
  .project-detail{grid-template-columns:1fr}
  .project-detail-image{max-height:300px}
  .code-block{font-size:0.75rem}
  .code-block h4{padding:10px 12px;font-size:0.85rem}
  .code-block pre{padding:10px}
}

/* Subtiele animatie voor content */
.hero-content, .card{opacity:1;transition:all 320ms cubic-bezier(.2,.9,.3,1)}

/* Utility */
.hidden{display:none !important}

/* Responsive adjustments */
@media (max-width:880px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .badge{width:240px;height:240px}
  .contact-grid{grid-template-columns:1fr}
  .btn.large{padding:12px 24px;font-size:1rem}
  .title{font-size:2.2rem}
}

@media (max-width:720px){
  .nav-toggle{display:inline-block}
  .main-nav{position:absolute;right:24px;top:64px;background:rgba(3,8,20,0.96);border-radius:12px;padding:12px;display:none;z-index:100;border:1px solid rgba(59,130,246,0.15)}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:12px}
  .container{padding:24px 16px}
  .hero{padding:60px 0}
  .title{font-size:1.8rem}
  .lead{font-size:0.95rem}
  .skills-grid{grid-template-columns:1fr}
  .cta-row{flex-direction:column;gap:10px}
  .btn{width:100%;text-align:center}
  .footer-inner{flex-direction:column;text-align:center}
  .footer-social{justify-content:center}
  .projects-grid{grid-template-columns:1fr}
  .hero-projects h1{font-size:1.8rem}
  .badge{width:180px;height:180px}
}