/* Base theme and typography */
:root{
  --bg:#070b1a;
  --bg-2:#0b1430;
  --ink:#e6ecff;
  --muted:#a9b7d9;
  --primary:#2a6cff;
  --primary-2:#1d49c7;
  --accent:#6ad1ff;
  --heading-font: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, sans-serif;
  --body-font: 'Nexa', 'Nunito', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
*{ box-sizing:border-box }
html,body{ height:100% }
body{
  margin:0;
  background: radial-gradient(1200px 800px at 80% -10%, #10204d 0%, transparent 60%),
              radial-gradient(1400px 900px at -10% 110%, #0b1a46 0%, transparent 60%),
              var(--bg);
  color:var(--ink);
  font-family: var(--body-font);
  line-height:1.6;
}

/* Top bar */
.topbar{
  position: sticky;
  top:0; z-index:50;
  display:flex; align-items:center; gap:1rem;
  height:64px;
  padding:0 1rem;
  background: linear-gradient(180deg, rgba(5,12,35,.9), rgba(5,12,35,.6));
  backdrop-filter: blur(6px);
  border-bottom:1px solid rgba(120,170,255,.15);
}
.brand{ font-weight:900; cursor:pointer; letter-spacing:.03em; }
.quick-search{ margin-left:auto; display:flex; gap:.5rem; align-items:center }
.quick-search input{
  background:rgba(255,255,255,.06); border:1px solid rgba(120,170,255,.25);
  color:var(--ink); padding:.5rem .75rem; border-radius:10px; width:220px;
}
.quick-search button, .btn{
  background:var(--primary); color:white; border:none; padding:.55rem .9rem;
  border-radius:10px; cursor:pointer; font-weight:700;
}
.btn.ghost{ background:transparent; border:1px solid rgba(120,170,255,.3); color:var(--ink) }
.top-actions{ display:flex; gap:.75rem }
.top-actions a{ color:var(--muted); text-decoration:none; font-weight:700 }

main{ min-height:calc(100vh - 64px); }
.page{ padding: 1rem 1.25rem; }
.pad{ padding: 2rem 1.25rem; }
.center{ text-align:center }
h1,h2,h3{ font-family: var(--heading-font); margin: .25rem 0 1rem }
.cards{ display:grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap:1rem }
.card{ background:rgba(255,255,255,.04); border:1px solid rgba(120,170,255,.2); padding:1rem; border-radius:14px; color:var(--ink); text-decoration:none }
.card:hover{ border-color:rgba(120,170,255,.35); background:rgba(255,255,255,.06) }

/* Forms */
.form-grid{ display:grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap:1rem; max-width:900px }
.form-grid label{ display:grid; gap:.35rem; font-weight:700 }
.form-grid input{ background:rgba(255,255,255,.06); border:1px solid rgba(120,170,255,.25); color:var(--ink); padding:.55rem .7rem; border-radius:10px }
.result{ margin-top:1rem; padding:1rem; border-radius:10px; background:rgba(70,200,120,.12); border:1px solid rgba(70,200,120,.35) }

/* Side menu */
.side-menu{
  position: fixed; inset: 64px auto 0 0; width: min(320px, 85vw);
  background: linear-gradient(180deg, #0a1438, #0a183f);
  border-right:1px solid rgba(120,170,255,.2);
  transform: translateX(-100%);
  transition: transform .3s ease;
  z-index:60;
  padding:1rem;
}
.side-menu .close{ position:absolute; top:.25rem; right:.5rem; background:transparent; color:var(--ink); border:none; font-size:1.5rem; cursor:pointer }
.side-menu ul{ list-style:none; padding:2rem .5rem 1rem; margin:0; display:grid; gap:.5rem }
.side-menu a{ color:var(--ink); text-decoration:none; padding:.5rem .75rem; border-radius:8px }
.side-menu a:hover{ background:rgba(255,255,255,.06) }
body.menu-open .side-menu{ transform: translateX(0); }

/* AI Chat */
.ai-chat{
  position: fixed; right: 1rem; bottom: 5.5rem; width: min(380px, 92vw);
  background: linear-gradient(180deg, #0a153a, #0d1b49);
  border:1px solid rgba(120,170,255,.25);
  border-radius:14px; overflow:hidden; display:none; z-index:70;
}
.ai-chat header{ display:flex; align-items:center; justify-content:space-between; padding:.5rem .75rem; border-bottom:1px solid rgba(120,170,255,.2) }
.ai-chat .chat-quick{ display:flex; flex-wrap:wrap; gap:.5rem; padding:.5rem .75rem }
.ai-chat .chat-quick button{ background:rgba(255,255,255,.06); color:var(--ink); border:1px solid rgba(120,170,255,.25); padding:.35rem .6rem; border-radius:999px; cursor:pointer }
.ai-chat .chat-window{ display:grid; grid-template-rows: 240px auto; }
.ai-chat .messages{ padding:.75rem; overflow:auto }
.ai-chat .composer{ display:flex; gap:.5rem; padding:.5rem; border-top:1px solid rgba(120,170,255,.2) }
.ai-chat .composer input{ flex:1; background:rgba(255,255,255,.06); border:1px solid rgba(120,170,255,.25); color:var(--ink); padding:.5rem .6rem; border-radius:10px }
.ai-chat .composer button{ background:var(--primary); color:#fff; border:none; border-radius:10px; padding:.5rem .9rem }
body.chat-open .ai-chat{ display:block }

/* Floating action buttons */
.fab{ position:fixed; width:48px; height:48px; border-radius:999px; display:grid; place-items:center; cursor:pointer; border:1px solid rgba(120,170,255,.25); background:rgba(8,16,44,.85); color:var(--ink); box-shadow:0 6px 22px rgba(0,0,0,.35); z-index:80 }
.fab-back{ left:1rem; top:72px }
.fab-menu{ right:1rem; top:72px }
.fab-tts{ left:1rem; bottom:1rem }
.fab-ai{ right:1rem; bottom:1rem }

/* Utility */
.btn.primary{ background:var(--primary) }
.hero-cta{ display:flex; gap:.75rem }