:root{
  --primary:#1e3a8a;
  --primary-dark:#1e2a6b;
  --accent:#2563eb;
  --success:#16a34a;
  --danger:#dc2626;
  --warn:#d97706;
  --bg:#f1f5f9;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --border:#e2e8f0;
  --radius:12px;
  --shadow:0 4px 16px rgba(15,23,42,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto}
a{color:var(--accent);text-decoration:none}
button,input,select,textarea{font:inherit}
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border:none;border-radius:10px;cursor:pointer;font-weight:600;font-size:15px;transition:transform .05s,background .15s;text-decoration:none}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:#fff;color:var(--primary);border:1px solid var(--border)}
.btn-danger{background:var(--danger);color:#fff}
.btn-warn{background:var(--warn);color:#fff}
.btn-success{background:var(--success);color:#fff}
.btn-ghost{background:transparent;color:var(--primary)}
.btn-sm{min-height:36px;padding:6px 12px;font-size:14px}
.btn-block{width:100%}
.input,.select,.textarea{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:#fff;font-size:16px}
.textarea{min-height:100px;resize:vertical}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}
.form-group{margin-bottom:16px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.3px}
.badge-active{background:#dcfce7;color:#166534}
.badge-suspended{background:#fef3c7;color:#92400e}
.badge-revoked{background:#fee2e2;color:#991b1b}
.badge-expired{background:#e2e8f0;color:#334155}
.badge-not_found{background:#fee2e2;color:#991b1b}

/* Header */
.site-header{background:var(--primary);color:#fff;position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:56px;flex-wrap:wrap;gap:8px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px}
.brand .logo{width:32px;height:32px;border-radius:8px;background:#fff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800}
.nav{display:flex;gap:8px}
.nav a{color:#fff;padding:8px 12px;border-radius:8px;min-height:40px;display:inline-flex;align-items:center}
.nav a:hover{background:rgba(255,255,255,.12)}

/* Hero / search */
.hero{padding:32px 0 24px;text-align:center}
.hero h1{font-size:24px;margin-bottom:8px}
.hero p{color:var(--muted);margin-bottom:20px}
.search-box{display:flex;flex-direction:column;gap:10px;max-width:520px;margin:0 auto}
.search-box .input{font-size:18px;text-align:center;letter-spacing:1px}
@media(min-width:600px){.search-box{flex-direction:row}.search-box .input{flex:1}.search-box .btn{width:auto}}

/* Result card */
.result-card{margin-top:24px}
.result-header{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px}
.result-header h2{font-size:20px;flex:1}
.detail-grid{display:grid;grid-template-columns:1fr;gap:10px}
.detail-item{padding:10px 0;border-bottom:1px solid var(--border)}
.detail-item:last-child{border-bottom:none}
.detail-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:2px}
.detail-value{font-weight:600;word-break:break-word}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.actions .btn{flex:1 1 140px}

/* Footer */
.site-footer{padding:24px 0;text-align:center;color:var(--muted);font-size:14px;margin-top:40px}

/* Utilities */
.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.text-center{text-align:center}
.hidden{display:none}
.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.empty{padding:32px;text-align:center;color:var(--muted)}
.error-msg{color:var(--danger);font-size:14px;margin-top:8px}
.success-msg{color:var(--success);font-size:14px;margin-top:8px}

@media(min-width:768px){
  .hero h1{font-size:32px}
  .detail-grid{grid-template-columns:1fr 1fr}
}