/* =========================================================================
   THE FILTER AI · design system
   Tokens + components. Mobile-first, responsive at 640px / 1024px.
   No white backgrounds. Radial-gradient page. All signal colours from tokens.
   ========================================================================= */

:root{
  /* Backgrounds */
  --bg:        #070b0f;
  --surface:   #0f1519;
  --surface-2: #161f27;
  --line:      #263340;

  /* Text */
  --text:  #e8f2ee;
  --muted: #8497a0;

  /* Signal colours. Every one clears WCAG AA on --bg, and --safe sits well
     above --threat in luminance as well as hue, so "blocked" and "breach"
     stay distinguishable without relying on colour alone. */
  --safe:   #39ff88;   /* correct / allow / caught */
  --threat: #ff3b5c;   /* attack / breach / wrong  */
  --amber:  #ffc233;   /* XP / coins / warning     */
  --brand:  #2ee6a8;   /* primary CTA / brand accent */
  --violet: #b072ff;   /* secondary accent / tags   */

  /* Accent gradient stops */
  --brand-hi: #5df0bd;
  --brand-lo: #17c98d;

  /* Shape */
  --radius: 14px;

  /* Typography families. IBM Plex: one family across text and code, drawn
     for engineering products. */
  --mono:    "IBM Plex Mono", ui-monospace, monospace;
  --display: "IBM Plex Sans", system-ui, sans-serif;
  --body:    "IBM Plex Sans", system-ui, sans-serif;

  /* Fluid type */
  --text-body:    clamp(14px, 2.5vw, 16px);
  --text-prompt:  clamp(15px, 3vw, 18px);
  --text-display: clamp(18px, 4vw, 22px);
  --text-mono:    clamp(11px, 2vw, 13px);
}

/* ---------- reset ---------- */
*{box-sizing:border-box}
html,body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font-family:var(--body);
  background:radial-gradient(1000px 500px at 50% -10%,#0c1a17 0%,transparent 60%),var(--bg);
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- brand background ----------
   Two layers, both carried over from the sibling Hamcodes sites so The Filter
   sits in the same family: the drifting graph paper from labs.hamcodes.com,
   and the node field from the portfolio. Both sit behind everything, ignore
   pointer events, and stop dead under prefers-reduced-motion. */
body::before{
  content:"";
  position:fixed;inset:0;
  background-image:
    linear-gradient(rgba(46,230,168,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,230,168,.028) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;z-index:0;
  animation:gridmove 4s linear infinite;
}
@keyframes gridmove{from{background-position:0 0}to{background-position:32px 32px}}

#bgCanvas{
  position:fixed;inset:0;width:100%;height:100%;
  pointer-events:none;z-index:0;opacity:.5;
}

/* ---------- layout ---------- */
.app{
  position:relative;z-index:1;      /* above both background layers */
  max-width:620px;
  margin:0 auto;
  padding:20px 16px 56px;
}
.stage{min-width:0}

/* Desktop level map sits to the left; stage stays centered & capped. */
.levelmap{display:none}

@media (min-width:1024px){
  .app{
    max-width:960px;
    display:grid;
    grid-template-columns:104px minmax(0,620px);
    justify-content:center;
    gap:32px;
    align-items:start;
    padding-top:28px;
  }
  .levelmap{
    display:flex;
    flex-direction:column;
    gap:6px;
    position:sticky;
    top:28px;
  }
  .levelmap .lm-title{
    font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
    color:var(--muted);margin-bottom:6px;padding-left:2px;
  }
  .lm-item{
    display:flex;align-items:center;gap:8px;
    font-family:var(--mono);font-size:12px;color:var(--muted);
    padding:5px 8px;border-radius:8px;border:1px solid transparent;
  }
  .lm-item .n{width:20px;text-align:right;font-weight:700}
  .lm-item.done{color:var(--safe)}
  .lm-item.done .n::after{content:" ✓"}
  .lm-item.current{color:var(--text);border-color:var(--line);background:var(--surface)}
  .lm-item.locked{opacity:.4}
  .lm-item .tier{font-size:9px;letter-spacing:.05em;text-transform:uppercase}
}

/* ---------- HUD ---------- */
.hud{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:8px 16px;margin-bottom:10px;
}
.hud .brand{
  font-family:var(--mono);font-weight:700;color:var(--violet);
  font-size:15px;letter-spacing:.01em;
}
.hud .stats{
  display:flex;align-items:center;gap:16px;
  font-family:var(--mono);font-size:13px;font-weight:700;
}
.stat-xp{color:var(--amber)}
.stat-streak{color:var(--threat)}
.stat-level{color:var(--muted);font-weight:600}

.progress-track{
  height:6px;background:var(--surface-2);border:1px solid var(--line);
  border-radius:99px;overflow:hidden;margin-bottom:22px;
}
.progress-fill{
  height:100%;width:0;
  background:linear-gradient(90deg,var(--brand),var(--safe));
  transition:width .45s ease;
}

/* Hide keyboard hints on touch/small screens */
.kbd{font-family:var(--mono);font-size:11px;color:var(--muted);margin-left:6px}
@media (max-width:639px){ .kbd{display:none} }

/* ---------- headings shared ---------- */
.screen-title{
  font-family:var(--display);font-weight:700;
  font-size:var(--text-display);letter-spacing:-.01em;margin:0 0 8px;
}
.screen-title .b{color:var(--brand)}
.prompt-line{font-family:var(--display);font-weight:600;font-size:var(--text-prompt);margin:2px 0 12px;line-height:1.4}
.hint{font-family:var(--mono);font-size:var(--text-mono);color:var(--muted);margin-bottom:16px}

/* ---------- TYPE 1: allow / block ---------- */
.inbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.inbox-head{
  display:flex;align-items:center;gap:8px;padding:11px 14px;
  background:var(--surface-2);border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);
}
.inbox-head .live{
  width:8px;height:8px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 0 rgba(46,230,168,.5);animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(46,230,168,.5)}
  70%{box-shadow:0 0 0 7px rgba(46,230,168,0)}
  100%{box-shadow:0 0 0 0 rgba(46,230,168,0)}
}
.inbox-body{padding:16px 15px}
.meta{font-family:var(--mono);font-size:11px;color:var(--muted);margin-bottom:9px}
.ptext{font-size:var(--text-prompt);line-height:1.6;white-space:pre-wrap;word-break:break-word}
.ptext code{
  font-family:var(--mono);font-size:.85em;background:var(--surface-2);
  padding:1px 5px;border-radius:5px;color:var(--brand);word-break:break-all;
}

/* faux message card inside a prompt */
.card{
  margin-top:12px;background:var(--surface-2);border:1px solid var(--line);
  border-radius:10px;padding:12px 13px;
}
.card .from{font-family:var(--mono);font-size:11px;color:var(--muted);margin-bottom:6px}
.card .body{font-size:14px;line-height:1.55;white-space:pre-wrap;word-break:break-word;color:var(--text)}

.verdict-row{display:grid;grid-template-columns:1fr;gap:10px;margin-top:16px}
.vbtn{
  font-family:var(--display);font-weight:600;font-size:15px;
  min-height:56px;padding:14px;border-radius:12px;cursor:pointer;
  border:1px solid var(--line);background:var(--surface-2);color:var(--text);
  transition:transform .1s,border-color .15s,background .15s;
  touch-action:manipulation;
}
.vbtn:active{transform:translateY(0)}
.vbtn.allow.hl,.vbtn.block.hl{} /* placeholder */

@media (hover:hover){
  .vbtn:hover{transform:translateY(-1px)}
  .vbtn.allow:hover{border-color:var(--safe);background:rgba(57,255,136,.1)}
  .vbtn.block:hover{border-color:var(--threat);background:rgba(255,59,92,.1)}
}

/* ---------- TYPE 2: tap the injection ---------- */
.doc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.doc-head{
  display:flex;align-items:center;gap:8px;padding:11px 14px;
  background:var(--surface-2);border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);
}
.doc-head .dot{width:8px;height:8px;border-radius:50%;background:var(--amber)}
.doc-body{padding:16px 15px;font-size:var(--text-prompt);line-height:1.9}

.seg{
  border-radius:6px;padding:2px 3px;cursor:pointer;
  transition:background .12s,box-shadow .12s;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.seg.pick-wrong{background:rgba(255,59,92,.22);box-shadow:inset 0 0 0 1px var(--threat)}
.seg.pick-right{background:rgba(57,255,136,.24);box-shadow:inset 0 0 0 1px var(--safe)}
.seg.reveal{background:rgba(57,255,136,.14);box-shadow:inset 0 0 0 1px rgba(57,255,136,.5)}
.locked .seg{cursor:default}

@media (hover:hover){
  .seg:hover{background:rgba(46,230,168,.12)}
  .locked .seg:hover{background:transparent}
  .locked .seg.pick-wrong:hover{background:rgba(255,59,92,.22)}
  .locked .seg.pick-right:hover,.locked .seg.reveal:hover{background:rgba(57,255,136,.2)}
}

/* On mobile, each segment is a full-width tappable block so fingers land true. */
@media (max-width:639px){
  .doc-body{line-height:1.6}
  .seg{
    display:block;padding:12px 12px;margin:6px 0;min-height:44px;
    border:1px solid var(--line);background:var(--surface-2);
  }
}

/* ---------- TYPE 3: name the technique ---------- */
.scenario{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 15px;font-size:var(--text-prompt);line-height:1.6;margin-bottom:16px;
}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{
  display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:14px 15px;color:var(--text);font-family:var(--mono);font-size:14px;
  cursor:pointer;min-height:52px;transition:border-color .15s,background .15s;
  touch-action:manipulation;
}
.opt .radio{
  flex:0 0 auto;width:16px;height:16px;border-radius:50%;
  border:2px solid var(--muted);transition:border-color .15s,background .15s;
}
.opt.sel .radio{border-color:var(--brand);background:radial-gradient(circle,var(--brand) 42%,transparent 46%)}
.opt.correct{border-color:var(--safe);background:rgba(57,255,136,.1)}
.opt.correct .radio{border-color:var(--safe);background:radial-gradient(circle,var(--safe) 42%,transparent 46%)}
.opt.wrong{border-color:var(--threat);background:rgba(255,59,92,.1)}
.opt.wrong .radio{border-color:var(--threat);background:radial-gradient(circle,var(--threat) 42%,transparent 46%)}
.opt.dim{opacity:.45}
.opt[disabled]{cursor:default}
@media (hover:hover){
  .opt:not([disabled]):hover{border-color:var(--brand)}
}
.retry-note{font-family:var(--mono);font-size:12px;color:var(--amber);margin-top:12px}

/* ---------- feedback ---------- */
.fb{margin-top:16px;border-radius:12px;border:1px solid var(--line);padding:14px 15px;font-size:var(--text-body);line-height:1.6}
.fb.right{background:rgba(57,255,136,.07);border-color:rgba(57,255,136,.3)}
.fb.wrong{background:rgba(255,59,92,.07);border-color:rgba(255,59,92,.35)}
.fb .head{
  font-family:var(--mono);font-weight:700;font-size:12px;letter-spacing:.05em;
  text-transform:uppercase;margin-bottom:9px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.fb.right .head .res{color:var(--safe)}
.fb.wrong .head .res{color:var(--threat)}
.chip{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;text-transform:uppercase;
  padding:2px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);
}
.chip.tech{color:var(--brand);border-color:rgba(46,230,168,.4)}
.chip.safe{color:var(--safe);border-color:rgba(57,255,136,.4)}
.chip.xp{color:var(--amber);border-color:rgba(255,194,51,.4)}

/* ---------- feedback: why + impact blocks ---------- */
.fb-why{margin-top:2px}
.fb-label{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:5px;
}
.fb-text{font-size:var(--text-body);line-height:1.6}
/* the "stakes" footnote: darker inset, no coloured border, reads as a consequence */
.impact{margin-top:14px;background:var(--surface-2);border-radius:10px;padding:12px 13px}
.impact-label{
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:5px;
}
.impact-headline{font-family:var(--display);font-weight:700;font-size:14.5px;line-height:1.35;margin-bottom:5px}
.impact.threat .impact-headline{color:var(--threat)}
.impact.benign .impact-headline{color:var(--amber)}
.impact-detail{font-size:13px;line-height:1.55;color:var(--muted)}

/* ---------- exercise topline (counter + difficulty) ---------- */
.ex-topline{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.ex-count{font-family:var(--mono);font-size:var(--text-mono);color:var(--muted);letter-spacing:.04em}
.ex-diff{
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--muted);
}
.ex-diff.easy{color:var(--safe);border-color:rgba(57,255,136,.4)}
.ex-diff.medium{color:var(--amber);border-color:rgba(255,194,51,.4)}
.ex-diff.hard{color:var(--threat);border-color:rgba(255,59,92,.4)}

/* ---------- teach / concept card ---------- */
.unit-tag{
  font-family:var(--mono);font-size:var(--text-mono);color:var(--violet);
  letter-spacing:.05em;margin-bottom:10px;
}
.teach{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px}
.teach-label{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:10px;
}
.teach-heading{
  font-family:var(--display);font-weight:700;font-size:clamp(19px,4.5vw,24px);
  line-height:1.25;letter-spacing:-.01em;margin:0 0 14px;
}
.teach-body{color:var(--text);font-size:var(--text-body);line-height:1.7}
.teach-body p{margin:0 0 12px}
.teach-body p:last-child{margin-bottom:0}
.teach-example{
  margin:16px 0 4px;background:var(--surface-2);border:1px solid var(--line);
  border-radius:10px;padding:13px 14px;
}
.teach-example .ex-label{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--brand);margin-bottom:6px;
}
.teach-example .ex-body{font-size:var(--text-body);line-height:1.55;color:var(--text)}
.teach-key{
  margin-top:16px;background:var(--surface-2);border-left:3px solid var(--brand);
  border-radius:0 8px 8px 0;padding:11px 14px;font-style:italic;color:var(--text);
  font-size:var(--text-body);line-height:1.5;
}

/* ---------- unit complete ---------- */
.unit-complete{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center}
.uc-badge{
  display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--safe);border:1px solid rgba(57,255,136,.4);border-radius:999px;padding:4px 11px;margin-bottom:14px;
}
.unit-complete h2{font-family:var(--display);font-weight:700;font-size:var(--text-display);margin:0 0 6px}
.uc-sub{color:var(--muted);font-size:var(--text-body);margin:0 0 4px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--display);font-weight:600;font-size:15px;
  color:#04120c;border:none;border-radius:11px;
  background:linear-gradient(180deg,var(--brand-hi),var(--brand) 48%,var(--brand-lo));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.34),0 10px 26px -16px rgba(46,230,168,.8);
  padding:13px 20px;margin-top:16px;cursor:pointer;min-height:48px;
  touch-action:manipulation;transition:filter .15s,transform .1s;
}
.btn:active{transform:scale(.98)}
.btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--line);box-shadow:none}
.btn.full{width:100%}
@media (hover:hover){
  .btn:hover{filter:brightness(1.07)}
  .btn.ghost:hover{color:var(--text);border-color:var(--muted)}
}

/* ---------- intro / gate / complete panels ---------- */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px 20px}
.panel h1{font-family:var(--display);font-weight:700;font-size:clamp(26px,7vw,36px);letter-spacing:-.02em;margin:0 0 14px}
.panel h1 .b{color:var(--brand)}
.panel h2{font-family:var(--display);font-weight:700;font-size:var(--text-display);margin:0 0 12px}
.panel p{color:var(--muted);font-size:var(--text-body);line-height:1.7;margin:0 0 14px}
.panel p b,.panel p strong{color:var(--text)}
.panel .lede{color:var(--text);font-size:var(--text-prompt);line-height:1.6}
.tagline{font-family:var(--mono);font-size:12px;color:var(--violet);letter-spacing:.04em;margin-bottom:18px}

.howto{list-style:none;padding:0;margin:4px 0 20px}
.howto li{
  display:flex;gap:12px;align-items:flex-start;
  padding:11px 0;border-top:1px solid var(--line);font-size:var(--text-body);color:var(--muted);line-height:1.5;
}
.howto li:first-child{border-top:none}
.howto .ic{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--surface-2);
  border:1px solid var(--line);display:grid;place-items:center;
  font-family:var(--mono);font-size:12px;color:var(--brand);font-weight:700;
}
.howto b{color:var(--text)}

/* gate */
.gate-badge{
  display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--safe);border:1px solid rgba(57,255,136,.4);border-radius:999px;padding:4px 11px;margin-bottom:14px;
}
.covers{display:flex;flex-wrap:wrap;gap:7px;margin:6px 0 22px}
.covers .t{
  font-family:var(--mono);font-size:11px;color:var(--violet);
  border:1px solid rgba(176,114,255,.35);border-radius:999px;padding:4px 10px;
}
.key-row{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.key-row input{
  width:100%;background:var(--surface-2);border:1px solid var(--line);border-radius:11px;
  padding:13px 14px;color:var(--text);font-family:var(--mono);font-size:14px;min-height:48px;
}
.key-row input::placeholder{color:var(--muted)}
.key-msg{font-family:var(--mono);font-size:12px;margin-top:2px;min-height:16px}
.key-msg.err{color:var(--threat)}
.key-msg.ok{color:var(--safe)}
.btn-stack{display:flex;flex-direction:column;gap:10px;margin-top:18px}

/* complete */
.end{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center}
.end .rating{font-family:var(--display);font-weight:700;font-size:clamp(22px,6vw,28px);margin:2px 0 4px}
.end .rating.good{color:var(--safe)}
.end .rating.mid{color:var(--amber)}
.end .rating.bad{color:var(--threat)}
.end .line{font-family:var(--mono);font-size:13px;color:var(--muted);margin:14px 0}
.end .line b{color:var(--text)}
.end p{color:var(--muted);font-size:var(--text-body);line-height:1.65;max-width:44ch;margin:12px auto}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.stat-cell{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:12px 8px}
.stat-cell .v{font-family:var(--mono);font-weight:700;font-size:22px}
.stat-cell .k{font-family:var(--mono);font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-top:4px}
.stat-cell.caught .v{color:var(--safe)}
.stat-cell.breach .v{color:var(--threat)}
.stat-cell.false .v{color:var(--amber)}

/* ---------- certificate ---------- */
.cert-wrap{width:100%}
.cert-wrap svg{width:100%;height:auto;display:block;border-radius:var(--radius);border:1px solid var(--line)}
.cert-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}

/* ---------- main nav (shown once the paid tier is unlocked) ---------- */
.topnav{display:flex;gap:8px;margin:-8px 0 20px}
.topnav[hidden]{display:none}
.navlink{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);background:transparent;border:1px solid var(--line);
  border-radius:999px;padding:6px 13px;min-height:32px;cursor:pointer;
  touch-action:manipulation;transition:color .15s,border-color .15s,background .15s;
}
.navlink.on{color:var(--brand);border-color:rgba(46,230,168,.45);background:rgba(46,230,168,.07)}
@media (hover:hover){
  .navlink:not(.on):hover{color:var(--text);border-color:var(--muted)}
}

/* ---------- practice range (paid bonus) ----------
   A directory, not a lesson, so it breaks out of the 620px reading column
   into a wide card grid. body.range-view is toggled by the engine. */
body.range-view .app{max-width:100%;padding-left:20px;padding-right:20px}
@media (min-width:1024px){
  body.range-view .app{
    max-width:1400px;
    grid-template-columns:104px minmax(0,1220px);
  }
}

.range-head{margin-bottom:22px}
.range-label{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--violet);margin-bottom:10px;
}
.range-head h2{
  font-family:var(--display);font-weight:700;
  font-size:clamp(24px,5.5vw,34px);letter-spacing:-.025em;margin:0 0 12px;
}
.range-intro{color:var(--muted);font-size:var(--text-body);line-height:1.7;margin:0 0 20px;max-width:70ch}

/* counters */
.range-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
/* five tiles into two columns leaves an orphan, so the last one spans */
@media (max-width:559px){ .range-stats .r-stat:last-child{grid-column:span 2} }
@media (min-width:560px){ .range-stats{grid-template-columns:repeat(5,1fr)} }
.r-stat{
  background:linear-gradient(180deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);border-radius:12px;padding:12px 13px;
  position:relative;overflow:hidden;
}
.r-stat::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--line)}
.r-stat.cyan::before{background:var(--brand)}
.r-stat.violet::before{background:var(--violet)}
.r-stat.safe::before{background:var(--safe)}
.r-stat.amber::before{background:var(--amber)}
.r-stat.threat::before{background:var(--threat)}
.r-stat .v{font-family:var(--mono);font-weight:700;font-size:22px;line-height:1.1}
.r-stat.cyan .v{color:var(--brand)}
.r-stat.violet .v{color:var(--violet)}
.r-stat.safe .v{color:var(--safe)}
.r-stat.amber .v{color:var(--amber)}
.r-stat.threat .v{color:var(--threat)}
.r-stat .k{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-top:4px;
}

/* filter bar, sticks under the HUD while you scan */
.range-filter{
  position:sticky;top:0;z-index:20;
  display:flex;flex-direction:column;gap:10px;
  padding:14px 0 12px;margin-bottom:20px;
  background:linear-gradient(180deg,var(--bg) 78%,transparent);
  border-bottom:1px solid var(--line);
}
.rf-search{position:relative}
.rf-icon{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  color:var(--muted);font-size:16px;pointer-events:none;
}
.range-filter input{
  width:100%;min-height:46px;padding:12px 14px 12px 36px;
  background:var(--surface);border:1px solid var(--line);border-radius:11px;
  color:var(--text);font-family:var(--body);font-size:var(--text-body);
}
.range-filter input::placeholder{color:var(--muted)}
.range-filter input::-webkit-search-cancel-button{filter:invert(.6)}

.rf-pills{display:flex;flex-wrap:wrap;gap:7px}
.r-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--mono);font-size:11px;letter-spacing:.04em;
  color:var(--muted);background:var(--surface);border:1px solid var(--line);
  border-radius:999px;padding:7px 12px;min-height:34px;cursor:pointer;
  touch-action:manipulation;transition:color .15s,border-color .15s,background .15s;
}
.r-pill .n{
  font-size:9.5px;font-weight:700;color:var(--muted);
  background:var(--surface-2);border-radius:999px;padding:1px 6px;
}
.r-pill.on{
  color:var(--brand);border-color:rgba(46,230,168,.45);background:rgba(46,230,168,.08);
}
.r-pill.on .n{color:var(--brand);background:rgba(46,230,168,.14)}
@media (hover:hover){
  .r-pill:not(.on):hover{color:var(--text);border-color:var(--muted)}
}

.r-empty{text-align:center;padding:36px 0 44px;color:var(--muted)}
.r-empty p{font-family:var(--display);font-size:var(--text-prompt);margin:0 0 4px;color:var(--text)}
.r-empty[hidden]{display:none}

/* sections */
.range-sec{margin-bottom:34px}
.range-sec[hidden]{display:none}
.rs-head{display:flex;align-items:center;gap:11px;margin-bottom:8px}
.rs-n{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--surface-2);border:1px solid var(--line);display:grid;place-items:center;
  font-family:var(--mono);font-size:11px;font-weight:700;color:var(--brand);
}
.rs-head h3{font-family:var(--display);font-weight:700;font-size:var(--text-display);margin:0;letter-spacing:-.015em}
.rs-count{
  margin-left:auto;flex:0 0 auto;
  font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.04em;
}
.rs-count b{color:var(--text);font-weight:700}
.rs-intro{color:var(--muted);font-size:var(--text-body);line-height:1.6;margin:0 0 16px;max-width:72ch}

/* card grid */
.r-list{
  list-style:none;padding:0;margin:0;
  display:grid;grid-template-columns:1fr;gap:12px;align-items:stretch;
}
@media (min-width:660px){ .r-list{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1140px){ .r-list{grid-template-columns:repeat(3,1fr)} }

.r-item{
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,var(--surface-2),var(--surface) 42%);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 16px 15px 18px;position:relative;overflow:hidden;
  transition:border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.r-item[hidden]{display:none}
/* left accent: cyan by default, amber when the entry carries a caveat */
.r-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--brand),transparent 85%);opacity:.65;
}
.r-item.flagged::before{background:linear-gradient(180deg,var(--amber),transparent 85%);opacity:.8}
@media (hover:hover){
  .r-item:hover{
    border-color:rgba(46,230,168,.4);transform:translateY(-2px);
    box-shadow:0 18px 40px -26px rgba(0,0,0,.9);
  }
  .r-item.flagged:hover{border-color:rgba(255,194,51,.45)}
  .r-item:hover::before{opacity:1}
}

.r-title{
  font-family:var(--display);font-weight:600;font-size:16px;
  color:var(--text);text-decoration:none;
  display:flex;align-items:baseline;gap:6px;
  touch-action:manipulation;
}
.r-title::after{content:"↗";font-family:var(--mono);font-size:11px;color:var(--muted);flex:0 0 auto}
@media (hover:hover){
  .r-title:hover{color:var(--brand)}
  .r-title:hover::after{color:var(--brand)}
}
.r-tags{display:flex;flex-wrap:wrap;gap:6px;margin:9px 0 10px}
.r-tag{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.05em;text-transform:uppercase;
  padding:2px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);
}
.r-tag.level{color:var(--brand);border-color:rgba(46,230,168,.3)}
.r-tag.host{color:var(--violet);border-color:rgba(176,114,255,.3)}
.r-note{margin:0;color:var(--muted);font-size:13.5px;line-height:1.6}
.r-foot{margin-top:auto;padding-top:12px}
.r-flag{
  display:inline-block;
  font-family:var(--mono);font-size:9.5px;letter-spacing:.05em;text-transform:uppercase;
  padding:3px 9px;border-radius:999px;
  color:var(--amber);border:1px solid rgba(255,194,51,.4);background:rgba(255,194,51,.07);
}

.range-credit{
  margin-top:26px;padding:14px 15px;background:var(--surface-2);
  border-radius:10px;border-left:3px solid var(--violet);
}
.range-credit p{margin:0 0 6px;font-size:12.5px;line-height:1.6;color:var(--muted)}
.range-credit p:last-child{margin-bottom:0}
.range-credit a{color:var(--violet)}

/* Touch targets: 44px minimum on phones, per the design rules. */
@media (max-width:639px){
  .navlink{min-height:44px;padding:0 15px;display:inline-flex;align-items:center}
  .r-title{min-height:44px;align-items:center;padding-right:2px}
  .r-pill{min-height:44px;padding:0 14px}
}

/* next-step block under the certificate */
.next-step{
  margin-top:26px;padding-top:20px;border-top:1px solid var(--line);text-align:center;
}
.ns-label{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:6px;
}
.next-step p{font-family:var(--display);font-weight:600;font-size:var(--text-prompt);margin:0}

/* ---------- responsive: tablet+ ---------- */
@media (min-width:640px){
  .verdict-row{grid-template-columns:1fr 1fr}
  .vbtn{min-width:0}
  .cert-actions{flex-direction:row}
  .cert-actions .btn{margin-top:0}
  .btn-stack .btn{margin-top:0}
}
@media (min-width:1024px){
  .vbtn{min-width:180px}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}