:root{--bg:#0f1217;--card:#161b22;--accent:#4f8cff;--text:#e6e9ef;--muted:#a9b0bd;--radius:14px}
html,body{height:100%;margin:0;background:linear-gradient(135deg,#0f1217 0%,#11161f 100%);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,"Helvetica Neue",Arial}
body{display:grid;place-items:center;padding:24px}
.error-card{width:100%;max-width:520px;background:linear-gradient(180deg,#161b22 0%,#141922 100%);border-radius:var(--radius);box-shadow:0 20px 40px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.04);padding:24px 20px}
.trust-header{display:flex;align-items:center;gap:12px;margin-bottom:12px;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:10px}
.brand-logo{height:24px}
.trust-domain{font-weight:700;font-size:14px;color:var(--accent)}
.title{margin:10px 0 8px;font-size:22px}
.lead{margin:0 0 12px;color:var(--muted)}
.hints{margin:10px 0 18px;color:#f2f4f8}
.actions{display:flex;gap:12px}
.btn{flex:1;padding:12px;border-radius:12px;font-weight:600;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(180deg,#4f8cff,#7aa2ff);color:#0d1220}
.btn-ghost{background:rgba(255,255,255,.08);color:#e6e9ef;border:1px solid rgba(255,255,255,.15)}