style.css

/* style.css — development (readable) styles for Boahene Prince portfolio */
:root{
  /* Dark theme (default) */
  --bg:#0f1720; /* charcoal */
  --card:#111827;
  --muted:#94a3b8;
  --accent:#06b6d4; /* electric blue / turquoise */
  --glass: rgba(255,255,255,0.02);
  --text-primary: #e6eef6;
  --text-secondary: #94a3b8;
  --radius:12px;
  --max-width:1100px;
  --ff: 'Poppins', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
}

/* Light theme */
:root[data-theme="light"] {
  --bg: #ffffff;
  --card: #f8fafc;
  --muted: #64748b;
  --accent: #0891b2;
  --glass: rgba(0,0,0,0.02);
  --text-primary: #0f172a;
  --text-secondary: #475569;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  background:var(--bg);
  color:var(--text-primary);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:2rem 1rem;
}

/* Header / Nav */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(6px);
  background: linear-gradient(180deg, rgba(15,23,32,0.6), rgba(15,23,32,0.35));
  border-bottom:1px solid rgba(255,255,255,0.03);
}
.nav-container{display:flex;align-items:center;justify-content:space-between}
.logo{color:var(--text-primary);text-decoration:none;font-weight:700;letter-spacing:0.2px}

.nav{display:block}
.nav-list{display:flex;gap:1rem;list-style:none;margin:0;padding:0}
.nav-link{color:var(--muted);text-decoration:none;padding:0.6rem 0.4rem;border-radius:6px;transition:all .18s ease}
.nav-link:hover{color:var(--text-primary);background:var(--glass)}
.nav-link.active{color:var(--text-primary);box-shadow:inset 0 -2px 0 var(--accent)}

.nav-toggle{display:none;background:none;border:0;color:inherit}
.nav-toggle .hamburger{width:24px;height:2px;background:var(--muted);display:block;position:relative}
.nav-toggle .hamburger::before,.nav-toggle .hamburger::after{content:'';position:absolute;left:0;right:0;height:2px;background:var(--muted);transition:transform .25s ease,top .25s ease, opacity .25s}
.nav-toggle .hamburger::before{top:-7px}
.nav-toggle .hamburger::after{top:7px}
.nav-toggle.open .hamburger{background:transparent}
.nav-toggle.open .hamburger::before{transform:rotate(45deg);top:0;background:#fff}
.nav-toggle.open .hamburger::after{transform:rotate(-45deg);top:0;background:#fff}

/* Theme Toggle */
.theme-toggle {
  background: var(--glass);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.3s ease;
  margin-right: 0.5rem;
}

.theme-toggle:hover {
  background: var(--accent);
  color: white;
  transform: scale(1.05);
}

:root[data-theme="light"] .theme-toggle {
  border: 1px solid rgba(0,0,0,0.1);
}

/* Hero */
.hero{min-height:100vh;display:flex;align-items:center}
.hero-inner{display:grid;grid-template-columns:1fr 380px;gap:2rem;align-items:center}
.hero-content h1{font-size:clamp(2rem,4vw,3rem);margin:0}
.tagline{color:var(--accent);font-weight:600;margin:0.25rem 0 1rem}
.hero-lead{color:var(--muted);max-width:60ch}
.hero-cta{margin-top:1.25rem;display:flex;gap:0.75rem}
.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.7rem 1rem;border-radius:10px;text-decoration:none;border:1px solid transparent;cursor:pointer}
.btn.primary{background:linear-gradient(90deg,var(--accent),#06a6c2);color:#042027;font-weight:600}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:#fff}

.hero-illustration{display:flex;align-items:center;justify-content:center}
.shape{width:160px;height:160px;border-radius:18px;filter:blur(28px);opacity:.9}
.shape-1{background:linear-gradient(135deg,#06b6d4, #0ff6d2);transform:translateY(-20px)}
.shape-2{background:linear-gradient(135deg,#7dd3fc,#7c3aed);width:120px;height:120px;margin-top:40px}

/* Sections */
.section{padding:6rem 0}
.section h2{margin-top:0;font-size:1.6rem}
.muted{color:var(--muted)}

/* About */
.skills{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem;padding:0;list-style:none}
.skills li{background:linear-gradient(90deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));padding:.4rem .6rem;border-radius:8px;color:var(--muted);font-weight:600}

/* Services */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;margin-top:1.5rem}
.service-card{background:var(--card);padding:1.2rem;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,0.6);transition:transform .22s ease, box-shadow .22s ease}
.service-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(2,6,23,0.8)}
.card-icon{width:54px;height:54px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#06a6c2);display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#002e2f;margin-bottom:.6rem}

/* Certifications */
.certifications-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.25rem;margin-top:1.5rem}
.cert-card{background:var(--card);padding:1.5rem;border-radius:12px;box-shadow:0 6px 18px rgba(2,6,23,0.6);transition:transform .22s ease, box-shadow .22s ease;display:flex;align-items:flex-start;gap:1rem}
.cert-card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(2,6,23,0.8)}
.cert-icon{width:54px;height:54px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#06a6c2);display:flex;align-items:center;justify-content:center;font-size:1.25rem;color:#002e2f;flex-shrink:0}
.cert-info{flex:1}
.cert-info h3{margin:0 0 0.5rem;font-size:1.1rem}
.cert-issuer{color:var(--muted);font-size:0.9rem;margin:0.25rem 0}
.cert-date{color:var(--muted);font-size:0.85rem;margin:0.25rem 0 1rem}
.cert-link{display:inline-flex;align-items:center;gap:0.5rem;color:var(--accent);text-decoration:none;font-weight:600;font-size:0.9rem;padding:0.5rem 0.75rem;border:1px solid var(--accent);border-radius:6px;transition:all .22s ease}
.cert-link:hover{background:var(--accent);color:#002e2f}

/* Projects Grid */
.projects-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem;margin-top:1.25rem}
.project-card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.project-media{height:180px;display:flex;align-items:center;justify-content:center;padding:1rem;color:#042027;font-weight:700}
.project-media img{width:100%;height:100%;object-fit:cover;display:block}
.project-info{padding:1rem}
.project-desc{color:var(--muted);margin:.5rem 0}
.project-link{color:var(--accent);text-decoration:none;font-weight:600}
.project-card:hover .project-media{transform:scale(1.03)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 320px;gap:2rem;align-items:start}
.contact-card{background:var(--card);padding:1.25rem;border-radius:12px}
.contact-form label{display:block;margin-top:0.75rem;font-size:.9rem;color:var(--muted)}
.contact-form input,.contact-form textarea{width:100%;padding:.6rem;border-radius:8px;border:1px solid rgba(255,255,255,0.03);background:transparent;color:inherit;margin-top:.35rem}

.social{list-style:none;padding:0;margin:1rem 0 0}
.social li a{display:inline-flex;align-items:center;gap:.6rem;color:var(--muted);text-decoration:none;padding:.4rem .2rem;border-radius:8px}
.social li a:hover{color:#fff}

/* Footer */
.site-footer{border-top:1px solid rgba(255,255,255,0.03);padding:1.25rem 0;margin-top:2rem}
.footer-inner{display:flex;justify-content:space-between;align-items:center}

/* Responsive */
@media (max-width:1000px){
  .hero-inner{grid-template-columns:1fr 1fr}
  .container{padding:1.5rem}
}

@media (max-width:800px){
  .services-grid{grid-template-columns:1fr}
  .certifications-grid{grid-template-columns:1fr}
  .projects-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .hero-inner{grid-template-columns:1fr}
  .hero-illustration{display:none}
}

@media (max-width:640px){
  .nav-list{position:fixed;top:64px;right:0;background:linear-gradient(180deg, rgba(15,23,32,0.98), rgba(15,23,32,0.96));width:220px;height:calc(100% - 64px);flex-direction:column;padding:1rem;transform:translateX(105%);transition:transform .25s ease}
  .nav-list.open{transform:translateX(0)}
  .nav-toggle{display:block}
  .nav{display:block}
  .nav-link{padding:0.9rem 0.7rem}
  .theme-toggle{width: 38px; height: 38px; margin-right: 0.75rem;}
}

/* small helpers */
.muted{opacity:.9}

/* small animation */
@keyframes floaty{0%{transform:translateY(0)}50%{transform:translateY(-6px)}100%{transform:translateY(0)}}
.shape-1{animation:floaty 6s ease-in-out infinite}

/* Accessibility focus */
a:focus, button:focus, input:focus, textarea:focus{outline:2px dashed rgba(6,182,212,0.35);outline-offset:3px}