:root{
  --bg:#05060c; --panel:#0c1020; --line:#1c2340;
  --ink:#dfe4ff; --dim:#8891b8;
  --cyan:#5ee6ff; --amber:#ffb020;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font-family:"Space Grotesk",system-ui,sans-serif;
  min-height:100%; line-height:1.7; position:relative; overflow-x:hidden;
}
html[dir="rtl"] body{font-family:"Vazirmatn",system-ui,sans-serif; line-height:1.9}
body::before{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none; opacity:.55;
  background-repeat:repeat; background-size:280px 280px;
  background-image:
    radial-gradient(1px 1px at 15% 25%,#fff,transparent),
    radial-gradient(1px 1px at 75% 15%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 45% 60%,#fff,transparent),
    radial-gradient(1px 1px at 85% 70%,#fff,transparent),
    radial-gradient(1px 1px at 25% 85%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 60% 40%,#fff,transparent);
}
body::after{
  content:""; position:fixed; inset:0; z-index:-3; pointer-events:none;
  background:
    radial-gradient(ellipse at 15% 0%,rgba(94,230,255,.12),transparent 55%),
    radial-gradient(ellipse at 85% 100%,rgba(111,95,216,.16),transparent 55%);
}
.planet{
  position:fixed; top:40px; inset-inline-end:-55px; width:150px; height:150px;
  border-radius:50%; z-index:-1; opacity:.55; pointer-events:none;
  background:radial-gradient(circle at 35% 30%,#2c3a66,#0a0e1c 70%);
  box-shadow:0 0 70px rgba(94,230,255,.2);
}
.planet::after{
  content:""; position:absolute; inset:-22px -55px; border-radius:50%;
  border:2px solid rgba(255,176,32,.3); transform:rotate(-18deg);
}
a{color:var(--cyan)}
.wrap{max-width:760px;margin:0 auto;padding:48px 24px 80px}
.stamp{
  display:inline-block; font-family:"JetBrains Mono",monospace;
  font-size:12px; letter-spacing:.08em; color:var(--amber);
  border:1px solid var(--amber); padding:3px 8px; border-radius:2px;
}
h1{font-size:clamp(2.2rem,6vw,3.4rem); margin:.4em 0 .1em; letter-spacing:-.01em}
.tagline{color:var(--dim); font-size:1.05rem; margin:0 0 28px}
nav{display:flex; align-items:center; gap:18px; margin:28px 0 40px; flex-wrap:wrap}
.lang-btn{
  background:transparent; border:1px solid var(--line); color:var(--ink);
  padding:6px 14px; border-radius:6px; font-size:.8rem; cursor:pointer;
  margin-inline-start:auto; font-family:inherit;
}
.lang-btn:hover{border-color:var(--cyan); color:var(--cyan)}
nav a{text-decoration:none; color:var(--ink); font-size:.95rem; border-bottom:1px solid transparent}
nav a:hover{border-color:var(--cyan); color:var(--cyan)}
.btn{
  display:inline-block; background:var(--cyan); color:#031017; font-weight:600;
  padding:12px 22px; border-radius:6px; text-decoration:none; margin-top:8px;
}
.btn:hover{filter:brightness(1.1)}
.panel{
  background:var(--panel); border:1px solid var(--line); border-radius:10px;
  padding:24px 26px; margin:20px 0;
}
label{display:block; font-size:.85rem; color:var(--dim); margin:16px 0 6px}
input,textarea,select{
  width:100%; background:#080b16; border:1px solid var(--line); color:var(--ink);
  border-radius:6px; padding:10px 12px; font:inherit;
}
textarea{min-height:90px; resize:vertical}
button[type=submit]{
  margin-top:22px; background:var(--amber); color:#241300; font-weight:700;
  border:none; padding:13px 24px; border-radius:6px; cursor:pointer; font-size:1rem;
}
button[type=submit]:hover{filter:brightness(1.08)}
.msg{margin-top:16px; font-size:.9rem}
.msg.ok{color:#7cf7b0}
.msg.err{color:#ff8080}
footer{color:var(--dim); font-size:.8rem; margin-top:60px}
.rule{border-top:1px solid var(--line); padding-top:18px; margin-top:18px}
.rule:first-child{border-top:none; margin-top:0; padding-top:0}
.rule h3{margin:0 0 6px; font-size:1.05rem}
.rule p{margin:0 0 10px; color:var(--dim)}
.penalty{font-family:"JetBrains Mono",monospace; font-size:.82rem; color:var(--dim)}
.penalty b{color:var(--amber); font-weight:600}
.note{font-size:.85rem; color:var(--dim); border-left:2px solid var(--cyan); padding:6px 0 6px 12px; margin-top:10px}