:root {
  --bg: #0b0f17;
  --bg-soft: #121826;
  --panel: #161d2d;
  --panel-2: #1c2637;
  --border: #26304559;
  --text: #e7ecf3;
  --muted: #93a0b4;
  --brand: #6ea8fe;
  --brand-2: #8b5cf6;
  --ok: #34d399;
  --bad: #f87171;
  --warn: #fbbf24;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 15% -10%, #1b2440 0%, transparent 60%),
              radial-gradient(1000px 500px at 100% 0%, #241b3f 0%, transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
  min-height: 100vh;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  display: flex; align-items: center; gap: 18px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: #0d121dcc;
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.nav .brand { font-weight: 700; letter-spacing: .3px; font-size: 15px; }
.nav .brand span { color: var(--brand); }
.nav .links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav .links a {
  color: var(--muted); padding: 6px 10px; border-radius: 8px; font-size: 14px;
}
.nav .links a:hover { background: var(--panel); color: var(--text); text-decoration: none; }
.nav .links a.active { background: var(--panel-2); color: var(--text); }
.nav .spacer { flex: 1; }
.nav .who { font-size: 13px; color: var(--muted); }
.nav .who b { color: var(--ok); }

.wrap { max-width: 960px; margin: 0 auto; padding: 34px 22px 80px; }
.wrap.narrow { max-width: 720px; }

h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: .2px; }
h2 { font-size: 19px; margin: 30px 0 12px; }
h3 { font-size: 15px; margin: 20px 0 8px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
p { margin: 10px 0; }
.lead { color: var(--muted); font-size: 15px; }
.muted { color: var(--muted); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin-top: 22px; }

.card {
  display: block; padding: 18px; border-radius: 14px;
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--border);
  transition: transform .12s ease, border-color .12s ease;
}
a.card:hover { transform: translateY(-2px); border-color: #3b4a63; text-decoration: none; }
.card .tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 999px;
  background: #6ea8fe1f; color: var(--brand); margin-bottom: 10px;
}
.card .tag.xss { background: #8b5cf61f; color: #c4b5fd; }
.card .tag.stored { background: #34d3991f; color: var(--ok); }
.card h3 { color: var(--text); text-transform: none; letter-spacing: 0; font-size: 16px; margin: 0 0 6px; }
.card p { margin: 0; font-size: 13.5px; color: var(--muted); }

.panel {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 20px; margin: 18px 0;
}
.panel.soft { background: var(--bg-soft); }

.field { display: block; margin: 14px 0; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
input[type=text], input[type=password], textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px;
  background: #0c111b; border: 1px solid #2a3548;
  color: var(--text); font-family: var(--mono); font-size: 13.5px;
}
textarea { min-height: 160px; resize: vertical; }
input:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: transparent; }

.btn {
  display: inline-block; cursor: pointer; border: 0; border-radius: 10px;
  padding: 10px 16px; font-size: 14px; font-weight: 600; font-family: var(--sans);
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
}
.btn:hover { background: #24314a; }
.btn.primary { background: linear-gradient(180deg, var(--brand), #4f83e0); color: #08101f; border: 0; }
.btn.primary:hover { filter: brightness(1.06); }
.btn.ghost { background: transparent; }

.code, pre.code {
  font-family: var(--mono); font-size: 13px; background: #0c111b;
  border: 1px solid #232e43; border-radius: 10px; padding: 12px 14px;
  overflow-x: auto; white-space: pre-wrap; word-break: break-word; color: #cdd8e8;
}
code { font-family: var(--mono); background: #0c111b; border: 1px solid #232e43;
  border-radius: 5px; padding: 1px 5px; font-size: 12.5px; color: #e3b7ff; }
.code code { border: 0; background: transparent; padding: 0; color: inherit; }

table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
td { font-family: var(--mono); font-size: 12.5px; }

.alert { border-radius: 10px; padding: 12px 14px; margin: 14px 0; font-size: 14px; border: 1px solid; }
.alert.info { background: #6ea8fe14; border-color: #6ea8fe40; }
.alert.ok   { background: #34d39914; border-color: #34d39940; color: #d1fae5; }
.alert.bad  { background: #f8717114; border-color: #f8717140; color: #fecaca; }
.alert.warn { background: #fbbf2414; border-color: #fbbf2440; color: #fde68a; }

.flag {
  display: inline-block; font-family: var(--mono); font-size: 15px; font-weight: 700;
  padding: 8px 14px; border-radius: 10px; letter-spacing: .5px;
  background: #34d39916; border: 1px dashed #34d39966; color: #6ee7b7;
}

.verdict { font-family: var(--mono); font-weight: 700; font-size: 18px; padding: 10px 16px; border-radius: 10px; display: inline-block; }
.verdict.yes { background: #34d39916; border: 1px solid #34d39955; color: #6ee7b7; }
.verdict.no  { background: #f8717116; border: 1px solid #f8717155; color: #fca5a5; }

.hint-list { margin: 8px 0 0; padding-left: 20px; }
.hint-list li { margin: 6px 0; font-size: 13.5px; color: #c3cddd; }

details { margin: 12px 0; border: 1px solid var(--border); border-radius: 10px; background: var(--bg-soft); }
details > summary { cursor: pointer; padding: 10px 14px; font-weight: 600; font-size: 14px; }
details[open] > summary { border-bottom: 1px solid var(--border); }
details .body { padding: 12px 14px; }

.foot { border-top: 1px solid var(--border); color: var(--muted); font-size: 12.5px;
  padding: 22px; text-align: center; display: flex; flex-direction: column; gap: 6px; }
.foot b { color: var(--text); }
.foot-links { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.foot-links a { color: var(--brand); }

.inline-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.inline-form .field { flex: 1; min-width: 220px; margin: 0; }

.badge-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 0; }
.badge { font-size: 11px; padding: 3px 9px; border-radius: 999px; background: var(--panel-2);
  border: 1px solid var(--border); color: var(--muted); }