/* ========= PUZL Theme ========= */
/* Brand palette */
:root{
  --primary:#A694F7;  /* Soft Lavender */
  --secondary:#E7E7EF;/* Mist Grey */
  --accent:#1A1D3A;   /* Deep Midnight Blue */

  --bg:var(--secondary);
  --surface:#FFFFFF;
  --ink:var(--accent);
  --muted:rgba(26,29,58,.75);
  --border:rgba(26,29,58,.12);

  --radius:18px;
  --shadow-soft:0 10px 24px rgba(0,0,0,.10);
  --shadow-card:0 18px 46px rgba(26,29,58,.10);
}

/* Base */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:16px/1.65 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;
  text-rendering:optimizeLegibility; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:980px; margin:40px auto; padding:0 20px}

/* Nav */
.nav{
  position:sticky; top:0; z-index:50;
  background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.86));
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(120%) blur(6px);
}
.nav-inner{
  max-width:980px; margin:0 auto; padding:14px 20px;
  display:flex; align-items:center; justify-content:space-between
}
.brand a{display:inline-flex; align-items:center}
.brand img{
  width:48px; height:48px;
  object-fit:contain; display:block;
  border-radius:14px; /* PUZL icon is square-ish */
}
.nav-links{display:flex; gap:18px; align-items:center}
.nav a{color:var(--accent); opacity:.92; font-weight:900}
.nav a:hover{opacity:1; text-decoration:none}

/* Dropdown */
.nav-dropdown{position:relative; display:inline-block}
.nav-dropbtn{
  background:transparent;
  border:1px solid transparent;
  font:inherit;
  color:var(--accent);
  opacity:.92;
  font-weight:900;
  cursor:pointer;
  padding:8px 10px;
  border-radius:12px;
}
.nav-dropbtn:hover{
  opacity:1;
  background:rgba(166,148,247,.14);
  border-color:rgba(166,148,247,.25);
}
.nav-dropmenu{
  display:none;
  position:absolute;
  right:0;
  top:calc(100% + 10px);
  min-width:180px;
  background:rgba(255,255,255,.98);
  border:1px solid rgba(26,29,58,.12);
  border-radius:14px;
  box-shadow:0 18px 40px rgba(26,29,58,.18);
  padding:8px;
  z-index:60;
}
.nav-dropmenu a{
  display:block;
  padding:10px 10px;
  border-radius:12px;
  text-decoration:none;
  font-weight:900;
  color:var(--accent);
  opacity:.95;
}
.nav-dropmenu a:hover{
  background:rgba(166,148,247,.16);
  opacity:1;
}
.nav-dropdown:hover .nav-dropmenu{display:block}

@media (max-width:720px){
  .nav-inner{padding:12px 14px}
  .container{margin:28px auto}
  .nav-links{gap:10px}
}

/* Background: mist + lavender glow */
.bg-app{
  background:
    var(--bg),
    radial-gradient(900px 520px at 12% -10%, rgba(166,148,247,.30), transparent 70%),
    radial-gradient(980px 560px at 112% 110%, rgba(26,29,58,.08), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,0) 45%),
    radial-gradient(260px 260px at 85% 22%, rgba(166,148,247,.18), transparent 62%),
    radial-gradient(220px 220px at 16% 78%, rgba(26,29,58,.06), transparent 60%);
  background-repeat:no-repeat;
  background-attachment:fixed;
}

/* Cards */
.card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-card);
  margin:18px 0;
}
.card::before{
  content:"";
  position:absolute; inset:0 0 auto 0; height:4px;
  border-radius:18px 18px 0 0;
  background:linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  opacity:.9;
}
.card.subtle{
  background:rgba(255,255,255,.86);
  border:1px solid rgba(26,29,58,.10);
}

/* Type */
h1,h2,h3{line-height:1.15; margin:0 0 .55em; color:var(--accent)}
h1{font-size:44px; font-weight:950; letter-spacing:-.2px}
h2{font-size:26px; font-weight:850}
h3{font-size:20px; font-weight:800}
p{margin:.75em 0}
.prose p,.prose li{color:var(--accent)}
.title-shine{
  background:linear-gradient(180deg, var(--accent) 0%, var(--accent) 62%, rgba(166,148,247,.92) 100%);
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* Highlight (lavender glow) */
.hl{
  background:rgba(166,148,247,.18);
  color:var(--accent);
  padding:.12rem .35rem;
  border-radius:8px;
  font-weight:900;
}

/* Buttons */
.btn{
  display:inline-block;
  padding:12px 18px;
  border-radius:12px;
  border:1px solid rgba(26,29,58,.06);
  background:var(--primary);
  color:var(--accent);
  font-weight:950;
  text-decoration:none;
  box-shadow:var(--shadow-soft);
}
.btn:hover{filter:brightness(1.05); text-decoration:none}
.btn-ghost{
  background:transparent;
  color:var(--accent);
  border:1px solid rgba(26,29,58,.14);
  font-weight:900;
  box-shadow:none;
}
.btn-ghost:hover{
  background:rgba(166,148,247,.12);
  border-color:rgba(166,148,247,.30);
}

.actions{
  margin-top:14px;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

/* Footer */
.footer{
  position:relative;
  border-top:1px solid var(--border);
  margin-top:34px;
  padding:18px 0;
  background:linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.10));
}
.footer .container{margin:0 auto}
.footer small{color:var(--accent); opacity:.75}
.footer a{color:var(--accent)}
.footer a:hover{text-decoration:underline}