/* styles.css — responsive portfolio with light/dark mode */
:root{
  --bg:#ffffff; --text:#0b0b0b; --muted:#555; --accent:#0066ff; --card:#f7f9fc;
  --radius:10px;
}
[data-theme="dark"]{ --bg:#0b0f17; --text:#e6eef8; --muted:#9aa8bd; --accent:#58a6ff; --card:#07101a; }
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;
  background:var(--bg); color:var(--text); line-height:1.5;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
.container{max-width:1100px;margin:0 auto;padding:1.25rem}
.site-header{border-bottom:1px solid rgba(0,0,0,0.06);background:var(--bg);position:sticky;top:0;z-index:40}
.header-inner{display:flex;align-items:center;gap:1rem;justify-content:space-between;padding:0.6rem 0}
.brand{font-weight:700; text-decoration:none; color:var(--text); font-size:1.1rem}
.nav{display:flex;gap:1rem}
.nav a{color:var(--muted); text-decoration:none; padding:0.3rem 0.5rem; border-radius:6px}
.nav a:hover{color:var(--text); background:rgba(0,0,0,0.02)}
.header-controls{display:flex;align-items:center;gap:0.5rem}
.menu-toggle{display:none;background:none;border:0;font-size:1.25rem}
.btn{display:inline-block;background:var(--accent);color:white;padding:0.5rem 0.9rem;border-radius:8px;text-decoration:none}
.btn.ghost{background:transparent;color:var(--accent);border:2px solid rgba(0,102,255,0.12)}
.lead{color:var(--muted);font-size:1.05rem}

/* Hero */
.hero{padding:2.25rem 0}
.hero-grid{display:grid;grid-template-columns:1fr 320px;gap:2rem;align-items:center}
.hero-image img{width:100%;max-width:320px;border-radius:var(--radius);background:var(--card);display:block}

/* Sections */
.section{padding:2rem 0}
.about .meta{list-style:none;padding:0;margin:0.5rem 0 0 0}
.meta li{margin:0.25rem 0;color:var(--muted)}
.projects .project-filters{display:flex;gap:0.5rem;margin-bottom:1rem}
.projects .project-filters button{background:transparent;border:1px solid rgba(0,0,0,0.06);padding:0.4rem 0.6rem;border-radius:8px}
.projects .project-filters button.active{background:var(--accent);color:#fff}

.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}
.project-card{background:var(--card);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;min-height:220px}
.project-thumb{width:100%;height:140px;object-fit:cover;background:#ddd}
.project-body{padding:0.75rem;flex:1}
.project-links a{margin-right:0.6rem;color:var(--accent);text-decoration:none}

/* Skills & Contact */
.skill-list{display:flex;flex-wrap:wrap;gap:0.5rem;list-style:none;padding:0}
.skill-list li{background:rgba(0,0,0,0.04);padding:0.4rem 0.6rem;border-radius:8px}

.contact-form{max-width:640px}
.contact-form label{display:block;font-size:0.9rem;margin-top:0.75rem}
.contact-form input,.contact-form textarea{width:100%;padding:0.6rem;border-radius:8px;border:1px solid rgba(0,0,0,0.08);margin-top:0.25rem;background:transparent;color:var(--text)}
.form-actions{margin-top:0.75rem}

/* Footer */
.site-footer{border-top:1px solid rgba(0,0,0,0.06);padding:1rem 0;text-align:center;font-size:0.9rem;color:var(--muted)}

/* Responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr; text-align:left}
  .nav{display:none}
  .menu-toggle{display:inline-block}
}

/* small helpers */
.hidden{display:none}