/* NATIONAL DECLASSIFICATION PORTAL — modern 2026 app skin over 1980s secrets.
   The contrast is the point: clean, tactile, phone-first UI; ancient files
   underneath. Light "archive" palette, one stamp-red accent, tasteful motion. */
:root{
  --paper:#f5f3ec; --card:#fffdf7; --ink:#1b1a17; --muted:#79746a;
  --line:#e2ddd0; --stamp:#b3001b; --stamp-ink:#8f0016;
  --seal:#2e6b4f; --accent:#1b1a17;
  --shadow:0 1px 2px rgba(30,25,15,.06),0 8px 24px rgba(30,25,15,.07);
  --radius:12px; --radius-sm:8px;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Courier New",monospace;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#16150f;--card:#1f1d16;--ink:#efe9da;--muted:#9c968a;
    --line:#302d24;--stamp:#ff5a4d;--stamp-ink:#ff7568;--seal:#57c48f;--accent:#efe9da;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35);}
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body.portal{
  font-family:var(--sans);background:var(--paper);color:var(--ink);
  line-height:1.5;min-height:100vh;
  background-image:radial-gradient(rgba(120,110,90,.05) 1px,transparent 1px);
  background-size:22px 22px;
  padding-bottom:76px; /* room for bottom nav */
}
a{color:inherit}
.wrap{max-width:720px;margin:0 auto;padding:0 16px}

/* top bar */
.topbar{
  position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.topbar .wrap{display:flex;align-items:center;gap:12px;height:56px}
.brand{display:flex;flex-direction:column;line-height:1.1}
.brand b{font-size:13px;letter-spacing:.14em;font-weight:700}
.brand small{font-size:10px;letter-spacing:.22em;color:var(--muted)}
.spacer{flex:1}
.idchip{
  font-family:var(--mono);font-size:11px;border:1px solid var(--line);
  background:var(--card);border-radius:100px;padding:5px 11px;white-space:nowrap;
  display:flex;gap:7px;align-items:center;box-shadow:var(--shadow)}
.idchip .dot{width:7px;height:7px;border-radius:50%;background:var(--seal)}
.clr{color:var(--stamp);font-weight:700}

/* views */
.view{display:none;padding:20px 0 12px;animation:rise .28s ease both}
.view.active{display:block}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
h1.title{font-size:22px;letter-spacing:-.01em;margin-bottom:4px;font-weight:750}
.sub{color:var(--muted);font-size:14px;margin-bottom:18px}

/* cards */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:16px 17px;margin-bottom:12px;position:relative;
  transition:transform .15s ease,box-shadow .15s ease}
.card.tap{cursor:pointer}
.card.tap:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(30,25,15,.08),0 14px 34px rgba(30,25,15,.1)}
.card:active{transform:translateY(0)}
.card h3{font-size:15px;letter-spacing:.01em;margin-bottom:3px;display:flex;align-items:center;gap:8px}
.card p{color:var(--muted);font-size:13.5px}
.filemeta{font-family:var(--mono);font-size:11px;color:var(--muted);margin-top:8px}

/* ribbons / chips */
.ribbon{font-family:var(--mono);font-size:10px;letter-spacing:.12em;font-weight:700;
  padding:3px 8px;border-radius:5px;border:1px solid currentColor;white-space:nowrap}
.ribbon.cleared{color:var(--seal)}
.ribbon.sealed{color:var(--stamp)}
.ribbon.new{color:var(--stamp);background:color-mix(in srgb,var(--stamp) 12%,transparent);border-color:transparent}

/* buttons */
.btn{font-family:var(--sans);font-size:14px;font-weight:650;letter-spacing:.01em;
  background:var(--accent);color:var(--paper);border:0;border-radius:100px;
  padding:12px 20px;cursor:pointer;transition:filter .15s ease,transform .1s ease;
  -webkit-tap-highlight-color:transparent}
.btn:hover{filter:brightness(1.12)}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.45;cursor:default}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.red{background:var(--stamp)}
.btn.block{display:block;width:100%;text-align:center}
.btn.sm{padding:8px 14px;font-size:13px}
.btnrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}

/* inputs */
.field{display:block;margin:14px 0 6px;font-size:13px;font-weight:600;color:var(--ink)}
input[type=text],input[type=email],textarea,.inp{
  width:100%;font-family:var(--sans);font-size:16px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 14px;color:var(--ink);
  transition:border-color .15s ease,box-shadow .15s ease}
input:focus,textarea:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 3px color-mix(in srgb,var(--ink) 12%,transparent)}
textarea{min-height:96px;resize:vertical;font-family:var(--mono);font-size:14px}
.mono{font-family:var(--mono)}

/* document reader (modal sheet) */
.sheet-bg{position:fixed;inset:0;background:rgba(20,16,8,.42);backdrop-filter:blur(2px);
  z-index:40;display:none;animation:fade .2s ease}
.sheet-bg.open{display:block}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{
  position:fixed;z-index:41;left:50%;bottom:0;transform:translateX(-50%);
  width:min(720px,100%);max-height:88vh;overflow:auto;background:var(--card);
  border-radius:16px 16px 0 0;box-shadow:0 -8px 40px rgba(0,0,0,.25);
  padding:8px 20px 32px;display:none;animation:slideup .3s cubic-bezier(.16,1,.3,1)}
.sheet.open{display:block}
@keyframes slideup{from{transform:translate(-50%,100%)}to{transform:translate(-50%,0)}}
.grab{width:38px;height:4px;border-radius:100px;background:var(--line);margin:8px auto 14px}
.docname{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--muted);
  border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:14px;
  display:flex;justify-content:space-between;align-items:center;gap:10px}
.docbody{font-family:var(--mono);font-size:14px;white-space:pre-wrap;line-height:1.7;word-break:break-word}

/* redaction bars — tap or drag to lift */
.redaction{display:inline;position:relative;background:var(--ink);color:transparent;
  border-radius:3px;padding:0 2px;cursor:pointer;user-select:none;
  box-shadow:0 1px 0 rgba(0,0,0,.3);transition:background .25s ease,color .25s ease;
  -webkit-tap-highlight-color:transparent}
.redaction::after{content:"▏lift";position:absolute;right:3px;top:-15px;font-size:9px;
  color:var(--muted);font-family:var(--sans);opacity:0;transition:opacity .2s}
.redaction:hover::after{opacity:.7}
.redaction.lifted{background:color-mix(in srgb,var(--stamp) 14%,transparent);color:var(--ink);
  box-shadow:none;cursor:default}
.redaction.lifted::after{display:none}
.redaction.sealed{background:repeating-linear-gradient(45deg,var(--stamp),var(--stamp) 5px,var(--stamp-ink) 5px,var(--stamp-ink) 10px);cursor:not-allowed}
.redaction.sealed.deny{animation:shake .3s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
.sealtip{font-family:var(--sans);font-size:11px;color:var(--stamp);margin-top:6px;display:none}
.sealtip.show{display:block}

/* stepper / trials */
.step-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}
.step-head .pill{font-family:var(--mono);font-size:11px;color:var(--muted)}
.progress{height:3px;background:var(--line);border-radius:100px;overflow:hidden;margin-bottom:18px}
.progress i{display:block;height:100%;background:var(--stamp);transition:width .4s ease}
.choice{display:block;width:100%;text-align:left;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px 15px;margin-bottom:9px;font-size:15px;cursor:pointer;
  transition:border-color .12s,background .12s;-webkit-tap-highlight-color:transparent}
.choice:hover{border-color:var(--ink)}
.choice:active{background:var(--paper)}

/* stamp reveal */
.stamp-big{display:flex;flex-direction:column;align-items:center;gap:14px;padding:34px 0;text-align:center}
.stamp-mark{font-family:var(--mono);font-weight:800;letter-spacing:.12em;color:var(--stamp);
  border:3px double var(--stamp);padding:14px 22px;border-radius:8px;transform:rotate(-3deg);
  animation:thunk .5s cubic-bezier(.2,1.6,.4,1) both}
@keyframes thunk{0%{transform:rotate(-3deg) scale(2.4);opacity:0}60%{opacity:1}100%{transform:rotate(-3deg) scale(1)}}

/* bottom nav */
.nav{position:fixed;left:0;right:0;bottom:0;z-index:30;background:color-mix(in srgb,var(--paper) 90%,transparent);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);
  display:flex;justify-content:space-around;padding:8px 4px 10px}
.nav button{flex:1;min-width:0;background:none;border:0;color:var(--muted);font-family:var(--sans);font-size:10px;
  letter-spacing:.04em;display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;
  padding:4px 2px;border-radius:8px;transition:color .12s}
.nav button .ic{font-size:19px;line-height:1}
.nav button.on{color:var(--stamp)}
.nav .dotmark{position:absolute;margin:-2px 0 0 16px;width:6px;height:6px;background:var(--stamp);border-radius:50%}

/* footer — custody chain (outbound to the related sites) */
.portal-foot{
  display:flex;flex-wrap:wrap;gap:6px 18px;align-items:baseline;
  padding:26px 16px 18px;border-top:1px solid var(--line);margin-top:30px;
  font-size:12px;color:var(--muted)}
.portal-foot .foot-label{font-family:var(--mono);font-size:10px;letter-spacing:.22em;color:var(--stamp)}
.portal-foot a{color:var(--muted);text-decoration:none;border-bottom:1px dotted var(--line)}
.portal-foot a:hover{color:var(--ink);border-color:var(--ink)}

/* notices */
.notice{font-size:13.5px;margin-top:10px;padding:11px 13px;border-radius:var(--radius-sm);
  background:var(--card);border:1px solid var(--line)}
.notice.err{color:var(--stamp);border-color:color-mix(in srgb,var(--stamp) 30%,var(--line))}
.notice.ok{color:var(--seal);border-color:color-mix(in srgb,var(--seal) 30%,var(--line))}
.fine{font-size:12px;color:var(--muted)}
.hr{height:1px;background:var(--line);margin:20px 0}

/* examiner chat */
.chat{display:flex;flex-direction:column;gap:10px;margin:14px 0}
.bubble{max-width:82%;padding:11px 14px;border-radius:16px;font-size:14.5px;line-height:1.45}
.bubble.them{align-self:flex-start;background:var(--card);border:1px solid var(--line);border-bottom-left-radius:5px}
.bubble.me{align-self:flex-end;background:var(--accent);color:var(--paper);border-bottom-right-radius:5px}
.typing{align-self:flex-start;color:var(--muted);font-size:13px;font-style:italic}

/* tool blocks */
.tool{margin-bottom:22px}
.tool h3{font-size:15px;margin-bottom:4px}
.tool .fine{margin-bottom:10px}
canvas.evidence{width:100%;max-width:340px;border:1px solid var(--line);border-radius:var(--radius-sm);display:block}
.dropzone{border:1.5px dashed var(--line);border-radius:var(--radius);padding:22px;text-align:center;
  color:var(--muted);font-size:13.5px;cursor:pointer;transition:border-color .15s,background .15s}
.dropzone:hover{border-color:var(--ink)}
.dropzone.hot{border-color:var(--stamp);background:color-mix(in srgb,var(--stamp) 6%,transparent)}