:root {
  --bg: #02070b;
  --bg2: #04110d;
  --accent: #45ffb0;
  --accent2: #9bffd8;
  --accent-soft: rgba(69, 255, 176, 0.16);
  --accent-line: rgba(69, 255, 176, 0.35);
  --warn: #ffd166;
  --danger: #ff6b8b;
  --ink: #dff7ec;
  --ink-dim: #7fa394;
  --panel: rgba(6, 22, 18, 0.62);
  --panel-solid: #06140f;
  --radius: 14px;
  --font-display: "Orbitron", "Segoe UI", system-ui, sans-serif;
  --font-body: "Rajdhani", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 800px at 70% -10%, rgba(20, 80, 60, 0.35), transparent 60%),
    radial-gradient(900px 700px at 10% 110%, rgba(10, 60, 50, 0.30), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  overflow-x: hidden;
  letter-spacing: 0.2px;
}
#bg {
  position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0;
  display: block;
}
#scanlines {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.35;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0.14) 0px, rgba(0,0,0,0.14) 1px, transparent 2px, transparent 3px);
  mix-blend-mode: overlay;
}
#topbar, #app, #footer { position: relative; z-index: 2; }

/* ---------- Top bar ---------- */
#topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 14px 26px;
  backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(3,12,9,0.7), rgba(3,12,9,0.2));
  border-bottom: 1px solid var(--accent-line);
}
.brand { display: flex; align-items: baseline; gap: 8px; cursor: pointer; user-select: none; }
.brand-mark { color: var(--accent); font-size: 22px; text-shadow: 0 0 14px var(--accent); }
.brand-name { font-family: var(--font-display); font-weight: 900; letter-spacing: 4px; color: var(--ink); }
.brand-sub { font-size: 12px; color: var(--ink-dim); letter-spacing: 2px; text-transform: uppercase; }
#nav { display: flex; gap: 6px; margin-left: 10px; flex-wrap: wrap; }
#nav a {
  color: var(--ink-dim); text-decoration: none; padding: 7px 13px; border-radius: 10px;
  font-weight: 600; letter-spacing: 1px; text-transform: uppercase; font-size: 13px;
  border: 1px solid transparent; transition: 0.18s;
}
#nav a:hover { color: var(--accent2); border-color: var(--accent-line); background: var(--accent-soft); }
#nav a.active { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); box-shadow: 0 0 18px rgba(69,255,176,0.25); }
#authchip { margin-left: auto; display: flex; align-items: center; gap: 10px; }
#authchip .who { color: var(--ink-dim); font-size: 14px; }
.btn {
  font-family: var(--font-display); cursor: pointer; border: 1px solid var(--accent-line);
  background: var(--accent-soft); color: var(--accent); padding: 10px 18px; border-radius: 11px;
  letter-spacing: 1.5px; text-transform: uppercase; font-size: 13px; font-weight: 700; transition: 0.18s;
}
.btn:hover { background: rgba(69,255,176,0.26); box-shadow: 0 0 22px rgba(69,255,176,0.4); transform: translateY(-1px); }
.btn.primary { background: linear-gradient(180deg, var(--accent), #1fd68a); color: #012; border: none; }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--danger); border-color: rgba(255,107,139,0.4); background: rgba(255,107,139,0.08); }
.btn.small { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }

/* ---------- Layout ---------- */
#app { max-width: 1180px; margin: 0 auto; padding: 40px 26px 80px; min-height: 70vh; }
#footer {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 18px 26px; border-top: 1px solid var(--accent-line); color: var(--ink-dim); font-size: 13px;
}
.foot-dim { opacity: 0.7; }

.panel {
  background: var(--panel); border: 1px solid var(--accent-line); border-radius: var(--radius);
  padding: 22px; backdrop-filter: blur(12px); box-shadow: 0 10px 40px rgba(0,0,0,0.45), inset 0 0 30px rgba(69,255,176,0.04);
}
.grid { display: grid; gap: 18px; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 880px) { .cols-2,.cols-3,.cols-4 { grid-template-columns: 1fr; } }

h1,h2,h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: 2px; margin: 0 0 14px; }
h1 { font-size: clamp(28px, 5vw, 52px); }
.eyebrow { color: var(--accent); letter-spacing: 5px; text-transform: uppercase; font-size: 12px; font-weight: 700; }
.muted { color: var(--ink-dim); }
.tag { display: inline-block; padding: 3px 10px; border: 1px solid var(--accent-line); border-radius: 999px; font-size: 12px; color: var(--accent2); letter-spacing: 1px; }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 70px 10px 40px; }
.hero h1 { background: linear-gradient(90deg, var(--accent2), var(--accent), #bfffe6); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: 0 0 60px rgba(69,255,176,0.25); }
.hero p.lede { max-width: 720px; margin: 18px auto 28px; font-size: 19px; color: var(--ink-dim); }
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.feature { text-align: left; }
.feature .ico { font-size: 26px; color: var(--accent); text-shadow: 0 0 18px var(--accent); }
.feature h3 { font-size: 18px; margin: 10px 0 6px; letter-spacing: 1px; }
.feature p { margin: 0; color: var(--ink-dim); font-size: 15px; }

/* ---------- Forms ---------- */
label { display: block; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--ink-dim); margin: 12px 0 6px; }
input, textarea, select {
  width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--accent-line);
  background: rgba(2,10,8,0.7); color: var(--ink); font-family: var(--font-body); font-size: 16px; outline: none; transition: 0.15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(69,255,176,0.18); }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

/* ---------- Output rendering ---------- */
.card { background: rgba(4,16,12,0.6); border: 1px solid var(--accent-line); border-radius: 12px; padding: 16px; }
.def-term { color: var(--accent2); font-weight: 700; }
table { width: 100%; border-collapse: collapse; margin: 8px 0; }
th, td { border: 1px solid var(--accent-line); padding: 8px 10px; text-align: left; font-size: 15px; }
th { background: rgba(69,255,176,0.1); color: var(--accent2); }
.timeline { border-left: 2px solid var(--accent-line); padding-left: 18px; margin-left: 6px; }
.timeline .node { position: relative; margin: 0 0 18px; }
.timeline .node::before { content: ""; position: absolute; left: -25px; top: 4px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.scn-ev { color: var(--accent2); font-weight: 700; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 6px 12px; }
.kv dt { color: var(--ink-dim); text-transform: uppercase; font-size: 12px; letter-spacing: 1px; }
.kv dd { margin: 0; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- Providers ---------- */
.state-machine { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.state-step { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--accent-line); color: var(--ink-dim); font-size: 13px; }
.state-step.current { color: #012; background: var(--accent); border-color: var(--accent); font-weight: 700; box-shadow: 0 0 18px rgba(69,255,176,0.5); }
.state-step.done { color: var(--accent2); border-color: var(--accent2); }
.state-arrow { color: var(--ink-dim); }

/* ---------- Toast ---------- */
#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 50; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast-item { background: var(--panel-solid); border: 1px solid var(--accent-line); color: var(--ink); padding: 12px 18px; border-radius: 10px; box-shadow: 0 8px 30px rgba(0,0,0,0.5); animation: pop 0.2s ease; }
.toast-item.err { border-color: rgba(255,107,139,0.6); color: var(--danger); }
@keyframes pop { from { opacity: 0; transform: translateY(10px);} to {opacity:1; transform: none;} }

/* ---------- Loader ---------- */
.loader { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--accent-line); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }
.center-note { text-align: center; color: var(--ink-dim); padding: 30px; }

/* domains */
.domain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; max-height: 420px; overflow: auto; padding-right: 6px; }
.domain { border: 1px solid var(--accent-line); border-radius: 10px; padding: 10px 12px; cursor: pointer; transition: 0.15s; background: rgba(4,16,12,0.5); }
.domain:hover { border-color: var(--accent); background: var(--accent-soft); }
.domain.sel { border-color: var(--accent); background: rgba(69,255,176,0.18); box-shadow: 0 0 16px rgba(69,255,176,0.3); }
.domain .dn { font-weight: 600; }
.domain .dp { font-size: 12px; color: var(--accent2); }
.rank-bar { height: 8px; border-radius: 6px; background: rgba(69,255,176,0.15); overflow: hidden; margin-top: 6px; }
.rank-bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); }

a.link { color: var(--accent2); cursor: pointer; text-decoration: none; border-bottom: 1px dashed var(--accent-line); }
a.link:hover { color: var(--accent); }
.hidden { display: none !important; }
.scrim { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 40; display: flex; align-items: center; justify-content: center; }
.modal { width: min(620px, 92vw); max-height: 86vh; overflow: auto; }
.game-canvas { width: 100%; border: 1px solid var(--accent-line); border-radius: 12px; background: #020a07; display: block; }

/* ---------- Mobile / small screens ---------- */
@media (max-width: 760px) {
  #topbar { flex-wrap: wrap; gap: 8px; padding: 10px 14px; align-items: center; }
  .brand { flex: 1 1 auto; min-width: 0; }
  .brand-sub { display: none; }
  #nav { flex: 1 1 100%; order: 3; margin-left: 0; justify-content: flex-start; }
  #authchip { margin-left: auto; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
  #authchip .who { display: none; }
  #app { padding: 24px 14px 60px; }
  .hero { padding: 36px 6px 24px; }
  .panel { padding: 16px; }
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; white-space: nowrap; max-width: 100%; }
  .timeline { padding-left: 14px; }
  .state-machine { display: flex; flex-wrap: wrap; gap: 4px; }
  .state-step { font-size: 11px; }
}