/* Securin palette, taken from securin.io (purple primary, orange brand accent). */
:root {
  --bg: #F8F5FD;
  --bg-glow: rgba(124, 58, 237, .10);
  --card: #FFFFFF;
  --fg: #17151F;
  --muted: #5A5668;
  --border: #E4DDF0;
  --primary: #7C3AED;
  --primary-hover: #6D28D9;
  --primary-fg: #FFFFFF;
  --accent: #ED7B22;
  --code-bg: #F1ECFA;
  --chip-bg: #EFE7FD;
  --chip-fg: #5B2A86;

  --vuln: #DC2626;     --vuln-bg: #FEF2F2;    --vuln-border: #FCA5A5;
  --ok: #15803D;       --ok-bg: #F0FDF4;      --ok-border: #86EFAC;
  --unk: #6B7280;      --unk-bg: #F6F5F9;     --unk-border: #D6D1E1;
  --warn: #B45309;     --warn-bg: #FFF7ED;    --warn-border: #FDBA74;

  --radius: 14px;
  --shadow: 0 1px 2px rgba(23, 21, 31, .04), 0 8px 24px rgba(91, 42, 134, .06);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #08070D;
  --bg-glow: rgba(127, 48, 255, .22);
  --card: #15111F;
  --fg: #F2F0F7;
  --muted: #A8A2B8;
  --border: #2B2340;
  --primary: #8B5CF6;
  --primary-hover: #9E7AFF;
  --code-bg: #1E1830;
  --chip-bg: #241B3A;
  --chip-fg: #CD98F8;

  --vuln: #F87171;     --vuln-bg: #2A1215;    --vuln-border: #7F1D1D;
  --ok: #4ADE80;       --ok-bg: #0F2417;      --ok-border: #166534;
  --unk: #A8A2B8;      --unk-bg: #1A1626;     --unk-border: #3A3150;
  --warn: #FDBA74;     --warn-bg: #2A1A0C;    --warn-border: #9A3412;

  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background:
    radial-gradient(900px 420px at 15% -10%, var(--bg-glow), transparent 70%),
    radial-gradient(700px 360px at 95% 0%, rgba(237, 123, 34, .08), transparent 70%),
    var(--bg);
  background-repeat: no-repeat;
  color: var(--fg);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
code { background: var(--code-bg); padding: .1em .35em; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 16px; }

/* Top bar */
.topbar { border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--bg) 80%, transparent); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 10; }
.topbar__inner { display: flex; align-items: center; gap: 14px; height: 64px; }
.brand { display: flex; align-items: center; }
.logo { height: 30px; width: auto; }
.logo--dark { display: none; }
:root[data-theme="dark"] .logo--light { display: none; }
:root[data-theme="dark"] .logo--dark { display: block; }
.topbar__tag { font-size: .85rem; font-weight: 600; color: var(--muted); padding-left: 14px; border-left: 1px solid var(--border); }
.theme-toggle { margin-left: auto; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--fg); cursor: pointer; display: grid; place-items: center; }
.theme-toggle:hover { border-color: var(--primary); }
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }

/* Hero */
.hero { padding: 56px 0 32px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.chip { font-size: .78rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--chip-bg); color: var(--chip-fg); letter-spacing: .01em; }
.chip--crit { background: var(--vuln-bg); color: var(--vuln); border: 1px solid var(--vuln-border); }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; letter-spacing: -.02em; margin: 0 0 14px; }
.grad { background: linear-gradient(135deg, var(--primary), #C084FC 60%, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 1.1rem; color: var(--muted); max-width: 680px; margin: 0 0 28px; }

.check { display: flex; gap: 10px; max-width: 680px; }
.check input {
  flex: 1; min-width: 0; height: 52px; padding: 0 16px; font-size: 1rem;
  border-radius: 12px; border: 1px solid var(--border); background: var(--card); color: var(--fg);
  box-shadow: var(--shadow); outline: none;
}
.check input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 20%, transparent); }
.btn {
  height: 52px; padding: 0 26px; border: 0; border-radius: 12px; font-size: 1rem; font-weight: 600; cursor: pointer;
  background: linear-gradient(135deg, var(--primary), #9333EA); color: var(--primary-fg);
  display: inline-flex; align-items: center; gap: 10px; box-shadow: 0 6px 20px color-mix(in srgb, var(--primary) 35%, transparent);
}
.btn:hover { background: linear-gradient(135deg, var(--primary-hover), #7E22CE); }
.btn:disabled { opacity: .7; cursor: progress; }
.spinner { display: none; width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(255,255,255,.45); border-top-color: #fff; animation: spin .8s linear infinite; }
.btn.is-loading .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.fine { font-size: .85rem; color: var(--muted); max-width: 680px; margin: 12px 0 0; }

/* Result */
.result { margin-top: 28px; max-width: 820px; border-radius: var(--radius); border: 1px solid var(--unk-border); background: var(--unk-bg); padding: 22px 24px; box-shadow: var(--shadow); }
.result--vulnerable { border-color: var(--vuln-border); background: var(--vuln-bg); }
.result--patched { border-color: var(--ok-border); background: var(--ok-bg); }
.result--warn { border-color: var(--warn-border); background: var(--warn-bg); }
.result__head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.result__icon { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: #fff; background: var(--unk); flex: none; }
.result--vulnerable .result__icon { background: var(--vuln); }
.result--patched .result__icon { background: var(--ok); }
.result--warn .result__icon { background: var(--warn); }
.result h2 { margin: 0; font-size: 1.35rem; }
.result--vulnerable h2 { color: var(--vuln); }
.result--patched h2 { color: var(--ok); }
.result--warn h2 { color: var(--warn); }
.result p { margin: 6px 0; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 16px 0 4px; font-size: .92rem; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; overflow-wrap: anywhere; }
.note { font-size: .88rem; color: var(--muted); border-top: 1px dashed var(--border); padding-top: 10px; margin-top: 12px; }

/* Cards */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
section.wrap { margin-bottom: 20px; }
.card { min-width: 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.card h2 { font-size: 1.15rem; margin: 0 0 14px; }
.card h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.vtable { width: 100%; border-collapse: collapse; font-size: .92rem; }
.vtable th, .vtable td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.vtable th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; }
.vtable td:first-child { font-weight: 600; white-space: nowrap; }
.vtable strong { color: var(--ok); }

.ticks { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; font-size: .94rem; }
.ticks li { padding-left: 22px; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .55em; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }

.cmds { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
pre { margin: 0; background: var(--code-bg); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; overflow-x: auto; }
pre code { background: none; padding: 0; }

.refs { margin: 0; padding-left: 18px; display: grid; gap: 6px; }

.footer { border-top: 1px solid var(--border); margin-top: 28px; padding: 22px 0; font-size: .88rem; color: var(--muted); }
.footer__inner { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; }
.footer__links { display: flex; gap: 18px; }

@media (max-width: 760px) {
  .grid2, .cmds { grid-template-columns: minmax(0, 1fr); }
  .hero { padding-top: 36px; }
  .check { flex-direction: column; }
  .check input { flex: none; width: 100%; }
  .card { padding: 18px; }
  .vtable th, .vtable td { padding: 8px 4px; }
  .vtable td:first-child { white-space: normal; }
  .vtable { font-size: .86rem; }
  .btn { justify-content: center; }
  .topbar__tag { display: none; }
  .facts { grid-template-columns: 1fr; gap: 2px; }
  .facts dd { margin-bottom: 8px; }
}

/* What / Why / How sections */
.block { margin: 56px auto 0; }
.block__head { max-width: 760px; margin-bottom: 22px; }
.block__head h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.01em; margin: 0 0 10px; }
.block__head p { margin: 0; font-size: 1.02rem; }

.facts-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.fact { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; display: flex; flex-direction: column; gap: 4px; box-shadow: var(--shadow); }
.fact__k { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; }
.fact__v { font-weight: 600; }
.fact__v--crit { color: var(--vuln); }

.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.impact h3 { font-size: 1.05rem; text-transform: none; letter-spacing: 0; color: var(--fg); margin: 8px 0 6px; }
.impact p { margin: 0; color: var(--muted); font-size: .95rem; }
.impact__n { font-family: ui-monospace, monospace; font-weight: 700; color: var(--primary); font-size: .9rem; }
.callout { margin: 18px 0 0; padding: 14px 18px; border-radius: 12px; border: 1px solid var(--warn-border); background: var(--warn-bg); font-size: .95rem; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.step { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 18px; }
.step__n { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--primary), #9333EA); }
.step h3 { font-size: 1.15rem; text-transform: none; letter-spacing: 0; color: var(--fg); margin: 6px 0 8px; }
.step p { margin: 0 0 10px; }
.step .ticks { margin: 4px 0 16px; }
.step .cmds { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.step h4 { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 6px; }
.step .vtable { margin-bottom: 8px; }

@media (max-width: 760px) {
  .facts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid3, .step .cmds { grid-template-columns: minmax(0, 1fr); }
  .step { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .block { margin-top: 40px; }
}
@media (min-width: 761px) { .vtable td:nth-child(2) { white-space: nowrap; } }
.demo a { font-weight: 600; }
a.chip--link { text-decoration: none; border: 1px solid transparent; transition: border-color .15s, background .15s; }
a.chip--link:hover { border-color: var(--primary); text-decoration: none; }
a.chip--link:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

/* Result-card actions */
.result__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn--sm { height: 40px; padding: 0 16px; font-size: .92rem; border-radius: 10px; box-shadow: none; }
.btn--ghost { background: var(--card); color: var(--primary); border: 1px solid var(--border); }
.btn--ghost:hover { background: var(--chip-bg); border-color: var(--primary); }
.btn--sm:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
@media (max-width: 760px) { .result__actions .btn { flex: 1 1 100%; justify-content: center; } }