/* ==========================================================================
   suretrace.io — Design System
   "The Instrument" · Forensic Calm · Color is evidence.

   Principle: the interface is warm paper + ink. Saturated colour is withheld
   until the verdict — green only when clean, red only when flagged. Colour
   becomes information, never decoration.

   NOTE ON STATE MODEL (driven by the untouchable scan.js):
   - #scan-banner (.banner), #scan-loading, #scan-result, .field-error are
     HIDDEN by default and revealed ONLY by the `.show` class.
   - #scan-form-card is visible from base CSS; JS toggles inline display and
     may add `.show` — so `.show` must never be used as a *generic* hide gate.
   ========================================================================== */

/* ----------------------------------------------------------------- Fonts */
@font-face{font-family:"Profa";src:url("/assets/fonts/Profa-Light.ttf") format("truetype");font-weight:300;font-style:normal;font-display:swap}
@font-face{font-family:"Profa";src:url("/assets/fonts/Profa-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Profa";src:url("/assets/fonts/Profa-Medium.ttf") format("truetype");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Profa";src:url("/assets/fonts/Profa-SemiBold.ttf") format("truetype");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Profa";src:url("/assets/fonts/Profa-Bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap}
/* Expanded — the display voice (wide, airy, premium) */
@font-face{font-family:"Profa Expanded";src:url("/assets/fonts/Profa-Expanded.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Profa Expanded";src:url("/assets/fonts/Profa-MediumExpanded.ttf") format("truetype");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Profa Expanded";src:url("/assets/fonts/Profa-SemiBoldExpanded.ttf") format("truetype");font-weight:600;font-style:normal;font-display:swap}

/* ---------------------------------------------------------------- Tokens */
:root{
  /* surfaces */
  --paper:#f5f4ef;
  --paper-tint:#efece4;
  --card:#ffffff;
  --card-2:#fbfaf7;

  /* ink */
  --ink:#17140f;
  --ink-soft:#413d36;
  --muted:#6d675f;
  --faint:#9b958c;

  /* lines */
  --hairline:rgba(23,20,15,.12);
  --hairline-soft:rgba(23,20,15,.07);

  /* brand accent — forensic indigo, used sparingly */
  --indigo:#2b34e0;
  --indigo-deep:#1c23b0;
  --indigo-wash:rgba(43,52,224,.08);

  /* verdict — clean */
  --clean:#0f7a4d;
  --clean-deep:#0b5c3a;
  --clean-wash:#eaf5ee;
  --clean-line:rgba(15,122,77,.28);

  /* verdict — flagged */
  --flag:#c0392b;
  --flag-deep:#98261a;
  --flag-wash:#fbeeea;
  --flag-line:rgba(192,57,43,.30);

  /* type */
  --font-sans:"Profa",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --font-display:"Profa Expanded",var(--font-sans);
  --font-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;

  /* metrics */
  --container:1120px;
  --radius:14px;
  --radius-lg:22px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(23,20,15,.04),0 2px 8px rgba(23,20,15,.04);
  --shadow-md:0 4px 14px rgba(23,20,15,.06),0 18px 48px rgba(23,20,15,.08);
  --shadow-lg:0 10px 30px rgba(23,20,15,.08),0 40px 90px rgba(23,20,15,.12);
  --ease:cubic-bezier(.22,.61,.36,1);

  color-scheme:light;
}

/* ------------------------------------------------------------------ Reset */
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-weight:400;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  min-height:100vh;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
::selection{background:var(--indigo);color:#fff}
:focus-visible{outline:2px solid var(--indigo);outline-offset:3px;border-radius:4px}

/* subtle paper grain + horizon glow — the "clean room" atmosphere */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1200px 620px at 50% -8%,rgba(43,52,224,.05),transparent 60%),
    radial-gradient(900px 500px at 85% 8%,rgba(43,52,224,.03),transparent 55%);
}

/* --------------------------------------------------------------- Layout */
main{flex:1 0 auto}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.divider{height:1px;background:var(--hairline-soft);border:0;margin:0}

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px;
  font-size:14px;transition:top .2s var(--ease);
}
.skip-link:focus{top:16px}

/* --------------------------------------------------------- Typography */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:500;line-height:1.05;letter-spacing:-.01em;color:var(--ink)}
.display{
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(2.4rem,6.2vw,4.4rem);
  line-height:.98;letter-spacing:-.02em;
}
.lead{font-size:clamp(1.05rem,2.2vw,1.28rem);color:var(--muted);line-height:1.5;font-weight:400}
.eyebrow{
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;color:var(--indigo);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.6}
.mono{font-family:var(--font-mono)}

/* ------------------------------------------------------------- Wordmark */
.wordmark{
  display:inline-flex;align-items:center;gap:11px;
  font-family:var(--font-display);font-weight:500;font-size:1.22rem;
  letter-spacing:-.01em;color:var(--ink);line-height:1;white-space:nowrap;
}
.wordmark .word{font-weight:500}
.wordmark .word-accent{font-weight:600}
.wordmark .word-tld{
  font-family:var(--font-mono);font-size:.72em;color:var(--faint);
  font-weight:500;margin-left:1px;letter-spacing:0;
}
/* the "trace" mark: a node resting on a hairline trail */
.wordmark .mark{position:relative;width:26px;height:22px;flex:0 0 auto}
.wordmark .mark-line{
  position:absolute;left:0;right:0;top:50%;height:2px;transform:translateY(-50%);
  background:linear-gradient(90deg,transparent,var(--hairline) 18%,var(--indigo) 100%);
  border-radius:2px;
}
.wordmark .mark-node{
  position:absolute;top:50%;left:1px;width:8px;height:8px;border-radius:50%;
  background:var(--indigo);transform:translate(0,-50%);
  box-shadow:0 0 0 4px var(--indigo-wash);
  transition:left .5s var(--ease);
}
.wordmark:hover .mark-node{left:17px}

/* --------------------------------------------------------------- Header */
.site-header{
  position:sticky;top:0;z-index:100;
  padding:14px 0;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease),padding .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header[data-elevated="true"]{
  background:rgba(245,244,239,.78);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom-color:var(--hairline-soft);
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset;
  padding:10px 0;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-nav{display:flex;align-items:center;gap:6px}
.site-nav a{
  font-size:.95rem;font-weight:500;color:var(--muted);
  padding:8px 14px;border-radius:var(--radius-pill);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.site-nav a:hover{color:var(--ink);background:rgba(23,20,15,.05)}
.site-nav a.active{color:var(--ink)}
.site-nav a.active::after{
  content:"";display:block;height:2px;width:16px;margin:3px auto 0;
  background:var(--indigo);border-radius:2px;
}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;position:relative}
.nav-toggle:hover{background:rgba(23,20,15,.05)}
.nav-toggle-bar,.nav-toggle-bar::before,.nav-toggle-bar::after{
  content:"";position:absolute;left:11px;width:20px;height:2px;background:var(--ink);
  border-radius:2px;transition:transform .3s var(--ease),opacity .2s var(--ease);
}
.nav-toggle-bar{top:50%;transform:translateY(-50%)}
.nav-toggle-bar::before{top:-6px}
.nav-toggle-bar::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after{transform:translateY(-6px) rotate(-45deg)}

/* --------------------------------------------------------------- Footer */
.site-footer{
  flex-shrink:0;border-top:1px solid var(--hairline-soft);
  padding:56px 0 40px;margin-top:40px;
  background:linear-gradient(180deg,transparent,rgba(239,236,228,.5));
}
.footer-inner{
  display:grid;grid-template-columns:1fr auto;gap:28px 40px;align-items:start;
}
.footer-tagline{color:var(--muted);font-size:.95rem;margin-top:14px;max-width:34ch}
.footer-links{display:flex;gap:22px;align-items:center}
.footer-links a{color:var(--muted);font-size:.92rem;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--ink)}
.footer-legal{
  grid-column:1/-1;border-top:1px solid var(--hairline-soft);padding-top:22px;margin-top:8px;
  font-family:var(--font-mono);font-size:.74rem;color:var(--faint);letter-spacing:.02em;
}

/* --------------------------------------------------------------- Buttons */
.btn{
  --btn-bg:var(--ink);--btn-fg:#fff;--btn-bd:transparent;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-sans);font-weight:500;font-size:1rem;line-height:1;
  padding:14px 22px;border-radius:12px;cursor:pointer;text-decoration:none;
  background:var(--btn-bg);color:var(--btn-fg);border:1px solid var(--btn-bd);
  transition:transform .18s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  will-change:transform;-webkit-tap-highlight-color:transparent;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--lg{padding:17px 30px;font-size:1.06rem;border-radius:14px}
.btn--block{width:100%}

.btn--primary{--btn-bg:var(--ink);--btn-fg:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{--btn-bg:#000;box-shadow:var(--shadow-md)}

.btn--warning{--btn-bg:var(--flag);--btn-fg:#fff;box-shadow:0 8px 22px rgba(192,57,43,.24)}
.btn--warning:hover{--btn-bg:var(--flag-deep);box-shadow:0 10px 26px rgba(192,57,43,.3)}

.btn--outline{--btn-bg:transparent;--btn-fg:var(--ink);--btn-bd:var(--hairline)}
.btn--outline:hover{--btn-bd:var(--ink);background:rgba(23,20,15,.03)}

/* ----------------------------------------------------------------- Cards */
.card{
  background:var(--card);border:1px solid var(--hairline-soft);
  border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);
}

/* =====================================================================
   THE SCANNER — the instrument
   ===================================================================== */
.scanner{position:relative;max-width:720px;margin:0 auto}

/* Hero framing on the homepage */
.console-head{text-align:center;max-width:760px;margin:0 auto 36px}
.console-head .eyebrow{margin-bottom:22px}
.console-head h1{
  font-size:clamp(2.5rem,6vw,4.3rem);line-height:.98;letter-spacing:-.025em;margin-bottom:20px;
}
.console-head h1 .em{color:var(--indigo)}
.console-head p{font-size:clamp(1.05rem,2.2vw,1.24rem);color:var(--muted);max-width:52ch;margin:0 auto}

/* Banner — error/notice. HIDDEN until .show (empty on load). */
.banner{display:none;margin-bottom:18px}
.banner.show{display:flex;align-items:center;gap:12px;animation:rise .4s var(--ease)}
.banner--error{
  background:var(--flag-wash);border:1px solid var(--flag-line);
  color:var(--flag-deep);border-radius:14px;padding:15px 18px;
  font-size:.95rem;font-weight:500;
}
.banner--error::before{
  content:"";flex:0 0 auto;width:8px;height:8px;border-radius:50%;
  background:var(--flag);box-shadow:0 0 0 4px rgba(192,57,43,.15);
}

/* Form card — the input console. Visible by default. */
.scan-form-card{
  background:var(--card);border:1px solid var(--hairline-soft);
  border-radius:var(--radius-lg);padding:12px;box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.scan-form-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.7),transparent 120px);
}
.scan-form-card form{position:relative;display:flex;flex-direction:column;gap:14px;padding:16px}

.field{display:flex;flex-direction:column;gap:9px}
.field label{
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
  padding-left:2px;
}

/* Input — the hero object */
.input,.select{
  width:100%;font-family:var(--font-mono);font-size:1rem;color:var(--ink);
  background:var(--card-2);border:1.5px solid var(--hairline);
  border-radius:13px;padding:16px 16px;line-height:1.3;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.input::placeholder{color:var(--faint)}
.input:hover,.select:hover{border-color:rgba(23,20,15,.22)}
.input:focus,.select:focus{
  outline:none;border-color:var(--indigo);background:#fff;
  box-shadow:0 0 0 4px var(--indigo-wash);
}
.input.has-error{border-color:var(--flag);background:var(--flag-wash)}
.input.has-error:focus{box-shadow:0 0 0 4px rgba(192,57,43,.14)}

/* Custom select chrome */
.select{
  -webkit-appearance:none;appearance:none;cursor:pointer;padding-right:44px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236d675f' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}

/* The hero input gets extra presence on the homepage */
.scanner--hero .input{font-size:1.12rem;padding:20px 18px;letter-spacing:.01em}
.scanner--hero .field label{font-size:.7rem}

/* Field error — HIDDEN until .show */
.field-error{display:none;color:var(--flag-deep);font-size:.86rem;font-weight:500;padding-left:2px}
.field-error.show{display:block;animation:rise .25s var(--ease)}
.field-error::before{content:"→ ";color:var(--flag);font-family:var(--font-mono)}

/* Chain row: address + chain side by side on wider screens */
.scan-form-card .field-row{display:grid;gap:14px}
@media(min-width:560px){
  .scan-form-card .field-row{grid-template-columns:1fr 200px;align-items:end}
}

/* -------------------------------------------------- Loading (trace scan) */
.scan-loading{display:none}
.scan-loading.show{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:64px 24px;min-height:320px;animation:rise .4s var(--ease);
}
.spinner{
  --sz:76px;width:var(--sz);height:var(--sz);position:relative;margin-bottom:26px;
  border-radius:50%;
}
/* faint forensic ring */
.spinner::before{
  content:"";position:absolute;inset:0;border-radius:50%;
  border:2px solid var(--hairline);
}
/* sweeping trace arc */
.spinner::after{
  content:"";position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(from 0deg,transparent 0deg,transparent 250deg,var(--indigo) 340deg,transparent 360deg);
  -webkit-mask:radial-gradient(farthest-side,transparent calc(100% - 3px),#000 calc(100% - 2px));
          mask:radial-gradient(farthest-side,transparent calc(100% - 3px),#000 calc(100% - 2px));
  animation:sweep 1.1s linear infinite;
}
.status-text{
  font-family:var(--font-display);font-weight:500;font-size:1.28rem;color:var(--ink);
  letter-spacing:-.01em;min-height:1.4em;
}
.status-sub{color:var(--faint);font-size:.9rem;margin-top:8px;font-family:var(--font-mono);letter-spacing:.02em}

/* centre node — a small dot at the core of the sweeping ring */
.spinner{background:radial-gradient(circle at center,var(--indigo) 0 4px,transparent 5px)}

/* =====================================================================
   THE VERDICT — "the case file"
   ===================================================================== */
.scan-result{display:none}
.scan-result.show{display:block;animation:rise .5s var(--ease)}

.result-head{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:20px;margin-bottom:26px;
}
.result-head h2{
  font-size:clamp(1.5rem,3.4vw,2.05rem);letter-spacing:-.02em;max-width:20ch;line-height:1.05;
}
.result-icon{
  width:76px;height:76px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  animation:pop .55s var(--ease) both;
}
.result-icon svg{width:36px;height:36px}
.result-icon--clean{background:var(--clean-wash);color:var(--clean);box-shadow:0 0 0 8px rgba(15,122,77,.06)}
.result-icon--flagged{background:var(--flag-wash);color:var(--flag);box-shadow:0 0 0 8px rgba(192,57,43,.06)}
.result-icon svg path,.result-icon svg line{
  stroke-dasharray:48;stroke-dashoffset:48;animation:draw .7s var(--ease) .15s forwards;
}

/* the case-file card */
.summary-card{
  padding:0;overflow:hidden;border:1px solid var(--hairline);
  border-radius:var(--radius-lg);background:var(--card);box-shadow:var(--shadow-md);
}
.summary-card::before{
  content:"suretrace · case file";display:block;
  font-family:var(--font-mono);font-size:.68rem;font-weight:500;letter-spacing:.24em;
  text-transform:uppercase;color:var(--faint);
  padding:16px 24px;border-bottom:1px solid var(--hairline-soft);
  background:var(--card-2);
}
.summary-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:15px 24px;border-bottom:1px solid var(--hairline-soft);
}
.summary-row .label{
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);flex:0 0 auto;
}
.summary-row .value{
  font-size:1rem;color:var(--ink);text-align:right;font-weight:500;
  overflow-wrap:anywhere;min-width:0;
}
.summary-row .value.mono{font-family:var(--font-mono);font-size:.92rem;font-weight:400}

.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:.74rem;font-weight:500;letter-spacing:.08em;
  text-transform:uppercase;padding:5px 11px;border-radius:var(--radius-pill);
}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.badge--clean{color:var(--clean-deep);background:var(--clean-wash);border:1px solid var(--clean-line)}
.badge--flagged{color:var(--flag-deep);background:var(--flag-wash);border:1px solid var(--flag-line)}

.summary-note{
  padding:18px 24px;font-size:.95rem;color:var(--muted);line-height:1.5;
  background:var(--card-2);
}
.summary-note--warn{color:var(--flag-deep);background:var(--flag-wash);font-weight:500}

.result-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.result-actions .btn{flex:1 1 auto}
@media(max-width:520px){.result-actions .btn{flex-basis:100%}}

/* supporting note under the console */
.console-foot{
  max-width:720px;margin:26px auto 0;text-align:center;
  font-family:var(--font-mono);font-size:.78rem;color:var(--faint);letter-spacing:.02em;
}

/* =====================================================================
   READOUT — the quiet "how it reads" strip (supporting, not features)
   ===================================================================== */
.readout{border-top:1px solid var(--hairline-soft)}
.readout-grid{display:grid;gap:0}
@media(min-width:760px){.readout-grid{grid-template-columns:repeat(3,1fr)}}
.readout-item{
  padding:34px 4px;border-bottom:1px solid var(--hairline-soft);
}
@media(min-width:760px){
  .readout-item{padding:38px 34px;border-bottom:0;border-right:1px solid var(--hairline-soft)}
  .readout-item:last-child{border-right:0}
}
.readout-item .idx{
  font-family:var(--font-mono);font-size:.74rem;color:var(--indigo);
  letter-spacing:.14em;font-weight:500;
}
.readout-item h3{font-family:var(--font-display);font-weight:500;font-size:1.3rem;margin:16px 0 8px;letter-spacing:-.01em}
.readout-item p{color:var(--muted);font-size:.96rem}

/* source credits — like instrument credits */
.credits{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 26px;
  padding:36px 0;
}
.credits .credits-label{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--faint);
}
.credits .src{font-family:var(--font-mono);font-size:.86rem;color:var(--ink-soft);font-weight:500}
.credits .dot{width:4px;height:4px;border-radius:50%;background:var(--hairline);}

/* =====================================================================
   CONTENT PAGES — About / FAQ / Privacy
   ===================================================================== */
.page-head{max-width:760px;margin:0 auto 8px;text-align:center}
.page-head .eyebrow{margin-bottom:20px}
.page-head h1{font-size:clamp(2.2rem,5vw,3.4rem);letter-spacing:-.02em;margin-bottom:16px}
.page-head .lead{margin:0 auto;max-width:56ch}

.prose{max-width:760px;margin:0 auto}
.prose h2{font-size:1.5rem;margin:0 0 12px;letter-spacing:-.01em}
.prose p{color:var(--ink-soft);margin-bottom:14px}
.prose a{color:var(--indigo);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--indigo-deep)}

.stack{display:flex;flex-direction:column;gap:20px;margin-top:44px}
.panel{
  background:var(--card);border:1px solid var(--hairline-soft);border-radius:var(--radius-lg);
  padding:30px 32px;box-shadow:var(--shadow-sm);
}
.panel h2{margin-bottom:12px}
.panel p{color:var(--ink-soft);margin:0}
.panel--accent{border-left:3px solid var(--indigo)}

/* "what we are NOT" negation list — honesty, foregrounded */
.negation{list-style:none;display:grid;gap:12px;margin:0;padding:0}
.negation li{
  display:flex;align-items:flex-start;gap:14px;color:var(--ink-soft);
  padding:14px 18px;border:1px solid var(--hairline-soft);border-radius:13px;background:var(--card-2);
}
.negation li::before{
  content:"";flex:0 0 auto;width:22px;height:22px;border-radius:50%;margin-top:1px;
  background:var(--flag-wash);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23c0392b' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='M18 6 6 18M6 6l12 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;
}

/* source list — mono credits */
.source-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.source-list li{
  display:flex;gap:14px;align-items:baseline;padding:13px 0;border-bottom:1px solid var(--hairline-soft);
  font-size:.98rem;color:var(--ink-soft);
}
.source-list li:last-child{border-bottom:0}
.source-list .src-name{font-family:var(--font-mono);font-weight:500;color:var(--ink);min-width:150px}

/* ------------------------------------------------------------------- FAQ */
.faq-list{max-width:760px;margin:44px auto 0;border-top:1px solid var(--hairline)}
.faq-item{border-bottom:1px solid var(--hairline)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:20px;
  padding:24px 4px;font-family:var(--font-display);font-weight:500;font-size:1.18rem;
  letter-spacing:-.01em;color:var(--ink);transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--indigo)}
.faq-item .q-idx{
  font-family:var(--font-mono);font-size:.8rem;font-weight:500;color:var(--faint);
  flex:0 0 auto;width:34px;letter-spacing:.05em;
}
.faq-item .q-plus{
  margin-left:auto;flex:0 0 auto;position:relative;width:18px;height:18px;transition:transform .3s var(--ease);
}
.faq-item .q-plus::before,.faq-item .q-plus::after{
  content:"";position:absolute;background:var(--ink-soft);border-radius:2px;
}
.faq-item .q-plus::before{top:8px;left:0;width:18px;height:2px}
.faq-item .q-plus::after{left:8px;top:0;width:2px;height:18px;transition:transform .3s var(--ease)}
.faq-item[open] .q-plus{transform:rotate(90deg)}
.faq-item[open] .q-plus::after{transform:scaleY(0)}
.faq-answer{
  padding:0 4px 26px 58px;color:var(--muted);font-size:1rem;line-height:1.6;
  animation:rise .35s var(--ease);
}
.faq-answer a{color:var(--indigo);text-decoration:underline;text-underline-offset:3px}

/* ------------------------------------------------------------- Reveal fx */
.js .reveal{opacity:0;transform:translateY(18px)}
.js .reveal.in{opacity:1;transform:none;transition:opacity .7s var(--ease),transform .7s var(--ease)}

/* --------------------------------------------------------------- Keyframes */
@keyframes sweep{to{transform:rotate(360deg)}}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pop{0%{opacity:0;transform:scale(.6)}60%{transform:scale(1.06)}100%{opacity:1;transform:scale(1)}}
@keyframes draw{to{stroke-dashoffset:0}}

/* --------------------------------------------------------------- Responsive */
@media(max-width:760px){
  .section{padding:64px 0}
  .nav-toggle{display:block}
  .site-nav{
    position:absolute;top:calc(100% + 8px);right:16px;left:16px;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--card);border:1px solid var(--hairline);border-radius:16px;
    padding:10px;box-shadow:var(--shadow-lg);
    opacity:0;transform:translateY(-8px) scale(.98);pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease);
  }
  .site-nav.open{opacity:1;transform:none;pointer-events:auto}
  .site-nav a{padding:12px 14px;border-radius:10px}
  .site-nav a.active::after{display:none}
  .site-nav a.active{background:var(--indigo-wash);color:var(--indigo)}
  .footer-inner{grid-template-columns:1fr;gap:24px}
  .footer-links{flex-wrap:wrap}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .scan-form-card form{padding:12px}
  .summary-row{flex-direction:column;align-items:flex-start;gap:6px}
  .summary-row .value{text-align:left}
}

/* --------------------------------------------------------- Reduced motion */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  html{scroll-behavior:auto}
  .spinner::after{animation:none;background:conic-gradient(from 0deg,var(--indigo) 0deg 90deg,transparent 90deg 360deg)}
  .js .reveal{opacity:1;transform:none}
  .wordmark:hover .mark-node{left:1px}
}