/* style.css - thème sombre pro */
:root {
  --bg:#0b0f14;
  --panel:#0f1720;
  --muted:#98a2b3;
  --accent:#00aaff;
  --accent-2:#238636;
  --card-border: rgba(0,170,255,0.18);
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:#e6eef6;
  font-family:Inter, "Segoe UI", Arial, Sans-Serif;
  -webkit-font-smoothing:antialiased;
}

/* layout */
.container{max-width:1100px;margin:0 auto;padding:0 18px}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0}

/* header/nav */
.site-header{border-bottom:1px solid rgba(255,255,255,0.03);background:linear-gradient(180deg,rgba(255,255,255,0.01),transparent)}
.main-nav a{color:var(--muted);margin-left:18px;text-decoration:none;font-weight:600}
.main-nav .btn{background:var(--accent);color:#fff;padding:8px 12px;border-radius:8px}
.main-nav .btn.outline{background:transparent;border:1px solid rgba(255,255,255,0.04);color:var(--muted)}
.main-nav .btn.small{padding:6px 10px;font-size:0.95rem}

/* hero */
.hero{padding:64px 0;text-align:center}
.hero h1{font-size:2.4rem;color:var(--accent);margin-bottom:12px}
.hero p{color:var(--muted);max-width:800px;margin:0 auto 18px}
.hero .btn{display:inline-block;background:var(--accent);padding:12px 22px;border-radius:10px;font-weight:700}

/* features cards (rounded cubes with glow) */
.features{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;padding:40px 0}
.card{
  background:linear-gradient(180deg,var(--panel), rgba(255,255,255,0.01));
  border-radius:16px;
  padding:22px;
  width:300px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6), 0 0 40px rgba(0,170,255,0.05);
  border:1px solid var(--card-border);
  transition:transform .28s, box-shadow .28s;
}
.card:hover{
  transform:translateY(-10px);
  box-shadow: 0 16px 50px rgba(0,0,0,0.7), 0 0 60px rgba(0,170,255,0.14);
}
.card h3{color:var(--accent);margin:0 0 8px}
.card p{color:var(--muted);margin:0 0 12px}
.card ul{padding-left:18px;color:#dfe9f6}

/* auth forms (login / register) */
.auth-container{display:flex;justify-content:center;padding:40px 0}
.auth-card{
  width:420px;background:var(--panel);border-radius:14px;padding:22px;border:1px solid rgba(255,255,255,0.03);
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
}
.auth-card h2{color:var(--accent);text-align:center;margin-bottom:10px}
.auth-card label{display:block;color:var(--muted);font-size:0.9rem;margin:8px 0 6px}
.input{
  width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);
  background:transparent;color:inherit;
}
.btn-primary{background:var(--accent);color:#fff;padding:10px;border-radius:8px;border:none;width:100%;font-weight:700;margin-top:14px}
.msg-error{background:#3b1a1a;color:#ffb4b4;padding:8px;border-radius:8px;margin-bottom:10px}
.msg-success{background:#173b1c;color:#b7ffcd;padding:8px;border-radius:8px;margin-bottom:10px}

/* dashboard table */
.table{width:100%;border-collapse:collapse;margin-top:14px}
.table th,.table td{padding:10px;border-bottom:1px solid rgba(255,255,255,0.03);text-align:left}
.table th{background:linear-gradient(90deg,var(--accent) 0%, #0070bb 100%);color:#fff}

/* footer */
.site-footer{padding:22px 0;border-top:1px solid rgba(255,255,255,0.03)}
.footer-grid{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-grid a{color:var(--muted)}

/* responsive */
@media (max-width:880px){
  .features{flex-direction:column;align-items:center}
  .hero h1{font-size:1.8rem}
}