/* Link Analysis UI — built on the shared RTK design tokens (canonical: Email Analyzer). */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);
     font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--font-display);font-weight:600;margin:0;line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(1.6rem,4vw,2.2rem)} h2{font-size:1.15rem} h3{font-size:1rem}
p{margin:0 0 .75rem;max-width:70ch}
.mono{font-family:var(--font-mono);font-size:.86em}
.muted{color:var(--text-secondary)}
.small{font-size:.82rem}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.mt{margin-top:1.25rem}

/* header */
header.rtk-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}
.rtk-header-inner{max-width:1180px;margin:0 auto;padding:0 20px;height:56px;display:flex;align-items:center;gap:12px}
.rtk-brand{display:flex;align-items:center;gap:10px;color:var(--text)}
.rtk-brand svg{height:26px;width:auto;display:block}
.rtk-brand span{font-weight:700;font-size:.875rem}
.rtk-tagline{font-size:.75rem;color:var(--text-secondary)}
.rtk-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.rtk-nav{display:flex;align-items:center;gap:4px}
.rtk-nav a{padding:6px 12px;border-radius:8px;font-size:.875rem;font-weight:500;color:var(--text-secondary)}
.rtk-nav a:hover,.rtk-nav a[aria-current="page"]{background:var(--hover);color:var(--text);text-decoration:none}
.rtk-theme{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;
           background:var(--hover);border:0;border-radius:8px;color:var(--text);cursor:pointer}
.rtk-theme svg{width:16px;height:16px}

/* layout */
main{padding:24px 0 48px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:2px;margin-bottom:16px}
.card > .head{display:flex;align-items:center;gap:10px;justify-content:space-between;
              padding:12px 16px;border-bottom:1px solid var(--divider)}
.card > .head h2{font-size:1rem}
.card > .body{padding:16px}
.grid{display:grid;gap:12px}
.grid.stats{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.stat{border:1px solid var(--border);background:var(--surface);padding:14px 16px;border-radius:2px}
.stat .n{font-family:var(--font-display);font-size:1.7rem;line-height:1.1}
.stat .l{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);margin-top:4px}

/* forms */
textarea,input[type=text],input[type=email],input[type=password],.field{width:100%;background:var(--bg);border:1px solid var(--border);color:var(--text);
  border-radius:2px;padding:12px;font-family:var(--font-mono);font-size:.86rem;line-height:1.6;resize:vertical}
textarea:focus,input:focus{outline:2px solid var(--accent);outline-offset:1px}
textarea::placeholder{color:var(--text-secondary)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:var(--on-accent);
     border:1px solid var(--primary);border-radius:2px;padding:9px 16px;font-size:.9rem;font-weight:600;
     cursor:pointer;min-height:40px;font-family:var(--font-sans)}
.btn:hover{background:var(--primary-dark);border-color:var(--primary-dark);text-decoration:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn.ghost:hover{background:var(--hover)}
.btn.sm{padding:5px 10px;font-size:.78rem;min-height:30px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.check{display:flex;gap:8px;align-items:center;font-size:.85rem;color:var(--text-secondary)}

/* badges + tables */
.badge{display:inline-block;padding:2px 8px;border:1px solid;border-radius:2px;font-size:.72rem;
       text-transform:uppercase;letter-spacing:.05em;font-family:var(--font-mono)}
.sev-critical,.sev-high{color:var(--red);border-color:var(--red)}
.sev-medium{color:var(--orange);border-color:var(--orange)}
.sev-low{color:var(--primary);border-color:var(--primary)}
.sev-info{color:var(--text-secondary);border-color:var(--border)}
.verdict-critical{color:var(--red)} .verdict-clean{color:var(--primary)}
.verdict-suspicious{color:var(--orange)} .verdict-insufficient{color:var(--text-secondary)}
table{width:100%;border-collapse:collapse;font-size:.85rem}
th{text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);
   padding:8px 10px;border-bottom:1px solid var(--border);font-weight:600}
td{padding:8px 10px;border-bottom:1px solid var(--divider);vertical-align:top;word-break:break-word}
tr:last-child td{border-bottom:0}
.scroll{overflow-x:auto}

/* score */
.score{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.gauge{width:120px;height:120px;border-radius:50%;display:grid;place-items:center;position:relative}
.gauge .val{font-family:var(--font-display);font-size:2rem;line-height:1}
.gauge .lbl{font-size:.65rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-secondary)}

/* stage progress */
.stages{display:flex;flex-wrap:wrap;gap:6px}
.stage{padding:3px 9px;border:1px solid var(--border);border-radius:2px;font-size:.72rem;
       font-family:var(--font-mono);color:var(--text-secondary)}
.stage.running{color:var(--orange);border-color:var(--orange)}
.stage.done{color:var(--primary);border-color:var(--primary)}
.stage.failed{color:var(--red);border-color:var(--red)}

/* redirect chain */
.chain{display:flex;flex-direction:column;gap:0}
.hop{border:1px solid var(--border);padding:10px 12px;position:relative;background:var(--bg)}
.hop + .hop{margin-top:16px}
.hop + .hop::before{content:"↓";position:absolute;top:-16px;left:22px;color:var(--accent);font-size:.9rem}
.hop .u{font-family:var(--font-mono);font-size:.82rem;word-break:break-all}
.hop .meta{font-size:.75rem;color:var(--text-secondary);margin-top:4px}
.flag{display:inline-block;margin-left:6px;font-size:.68rem;color:var(--orange);border:1px solid var(--orange);
      border-radius:2px;padding:0 5px}

/* graph */
#graph{width:100%;height:420px;background:var(--bg);border:1px solid var(--border);border-radius:2px}

/* timeline */
ol.timeline{list-style:none;margin:0;padding:0 0 0 18px;border-left:1px solid var(--border)}
ol.timeline li{position:relative;padding:0 0 14px 14px;font-size:.85rem}
ol.timeline li::before{content:"";position:absolute;left:-5px;top:6px;width:9px;height:9px;
  border-radius:50%;background:var(--surface);border:2px solid var(--primary)}
ol.timeline .t{font-family:var(--font-mono);font-size:.72rem;color:var(--text-secondary)}

/* misc */
details{border-top:1px solid var(--divider)}
details:first-of-type{border-top:0}
summary{cursor:pointer;padding:10px 0;font-weight:600;font-size:.9rem;list-style:none;
        display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--font-mono);color:var(--text-secondary)}
details[open] summary::after{content:"–"}
.kv{display:grid;grid-template-columns:180px 1fr;gap:6px 16px;font-size:.85rem}
.kv dt{color:var(--text-secondary)} .kv dd{margin:0;word-break:break-word}
pre{background:var(--bg);border:1px solid var(--border);padding:10px;overflow:auto;font-size:.78rem;
    max-height:280px;margin:0}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.82);display:none;align-items:center;justify-content:center;z-index:90;padding:20px}
.modal.open{display:flex}
.modal img{max-width:100%;max-height:88vh;border:1px solid var(--border)}
.empty{padding:26px;text-align:center;color:var(--text-secondary);font-size:.9rem}
.copied{color:var(--primary)}
footer.site{border-top:1px solid var(--border);background:var(--surface);padding:20px;text-align:center;
            font-size:.78rem;color:var(--text-secondary);margin-top:32px}
@media (max-width:640px){
  .rtk-tagline{display:none}
  .rtk-brand span{display:none}
  .kv{grid-template-columns:1fr}
  .stat .n{font-size:1.45rem}
}