*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,Arial,sans-serif;transition:.3s;}
body.dark{--bg:#020617;--card:#0f172a;--text:#f8fafc;--muted:#94a3b8;--accent:#2563eb;}
body.light{--bg:#f8fafc;--card:#ffffff;--text:#020617;--muted:#475569;--accent:#2563eb;}
body{background:var(--bg);color:var(--text);}

.navbar{position:fixed;top:0;width:100%;height:70px;padding:0 10%;background:var(--bg);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #334155;z-index:100;}
.nav-right{display:flex;align-items:center;}
.navbar ul{list-style:none;display:flex;}
.navbar ul li{margin-left:20px;}
.navbar ul li a{color:var(--muted);text-decoration:none;}

#themeToggle{margin-right:20px;background:var(--card);border:none;padding:8px 10px;border-radius:6px;cursor:pointer;}

.hero{min-height:100vh;padding-top:70px;display:flex;align-items:center;background:linear-gradient(135deg,var(--card),var(--bg));}
.hero-content{max-width:900px;margin:0 auto;}

.hero h1{font-size:3.5rem;}
.hero h2{color:var(--muted);margin:12px 0;}
.hero p{color:var(--muted);max-width:650px;margin:20px 0;}

.buttons{margin-top:20px;}
.btn{padding:12px 22px;margin-right:10px;border-radius:8px;background:var(--card);color:var(--text);text-decoration:none;}
.btn.primary{background:var(--accent);color:#fff;}
.btn.outline{border:1px solid var(--accent);background:transparent;}

.section{padding:90px 10% 70px;text-align:center;}

.skills span{margin:8px;padding:10px 15px;background:var(--card);border-radius:6px;display:inline-block;}

.card{background:var(--card);border:1px solid #334155;padding:20px;border-radius:10px;margin:15px auto;max-width:520px;}

footer{text-align:center;padding:25px;border-top:1px solid #334155;color:var(--muted);}

/* Animation */
.reveal{opacity:0;transform:translateY(60px);}
.reveal.active{opacity:1;transform:translateY(0);}