*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#E74C3C;--primary-light:#FF6B6B;--accent:#00CEC9;
  --bg:#0B0E11;--bg-card:rgba(20,24,32,0.85);
  --bg-input:rgba(15,18,25,0.8);--text:#E8E6F0;--text-dim:#8B8AA0;
  --text-muted:#5A5872;--border:rgba(231,76,60,0.15);
  --border-hover:rgba(231,76,60,0.35);--success:#00B894;
  --danger:#FF6B6B;--warning:#FDCB6E;--radius:12px;--radius-sm:8px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;
  --mono:'JetBrains Mono','SFMono-Regular','Consolas',monospace;
  --transition:250ms ease;--shadow:0 4px 24px rgba(0,0,0,0.3);
  --glass-bg:rgba(20,24,32,0.6);--glass-border:rgba(255,255,255,0.06)
}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at 15% 10%,rgba(231,76,60,0.06) 0%,transparent 50%),radial-gradient(ellipse at 85% 85%,rgba(0,206,201,0.04) 0%,transparent 50%);pointer-events:none;z-index:0}
.app{position:relative;z-index:1;max-width:800px;margin:0 auto}
.header{padding:1.25rem 1.5rem;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:.75rem}
.header-brand{display:flex;align-items:center;gap:.75rem}
.header-brand h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{font-size:.78rem;color:var(--text-dim)}
.main{padding:1.5rem}
.section{margin-bottom:1.25rem}
.glass-card{background:var(--glass-bg);backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem}
.section-title{font-size:.9rem;font-weight:700;color:var(--primary-light);margin-bottom:.75rem}
.section-header .section-title{margin-bottom:0}
.badge{font-size:.72rem;padding:.2rem .55rem;border-radius:99px;background:rgba(0,206,201,0.15);color:var(--accent);font-weight:600}
.input-row{display:flex;gap:.5rem;margin-bottom:1rem}
.nik-input{flex:1;padding:.6rem .8rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:1rem;font-family:var(--mono);letter-spacing:.1em;transition:all var(--transition)}
.nik-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(231,76,60,0.15)}
.nik-display{font-family:var(--mono);font-size:.9rem;letter-spacing:.15em;padding:.5rem .75rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:1rem;display:flex;gap:2px;flex-wrap:wrap;align-items:center}
.nik-segment{padding:.15rem .3rem;border-radius:4px;font-weight:600;cursor:help;transition:all 150ms ease}
.nik-segment:hover{transform:scale(1.05)}
.seg-province{background:rgba(108,92,231,0.2);color:#A29BFE}
.seg-city{background:rgba(0,206,201,0.2);color:#00CEC9}
.seg-district{background:rgba(253,203,110,0.2);color:#FDCB6E}
.seg-dob{background:rgba(255,107,107,0.2);color:#FF6B6B}
.seg-sequence{background:rgba(0,184,148,0.2);color:#00B894}
.result-panel{margin-top:1rem;padding:1rem;background:var(--bg-input);border-radius:var(--radius-sm);border:1px solid var(--border)}
.result-status{display:flex;align-items:center;gap:.5rem;font-weight:600;font-size:.9rem;margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
.result-status.valid{color:var(--success)}
.result-status.invalid{color:var(--danger)}
.result-details{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem}
.detail-item{padding:.5rem;background:rgba(255,255,255,0.02);border-radius:var(--radius-sm);border:1px solid var(--glass-border)}
.detail-label{font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.2rem}
.detail-value{font-size:.85rem;font-weight:600;color:var(--text)}
.batch-input{width:100%;padding:.6rem .8rem;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.82rem;font-family:var(--mono);resize:vertical;transition:border var(--transition)}
.batch-input:focus{outline:none;border-color:var(--primary)}
.batch-actions{display:flex;gap:.5rem;margin:.75rem 0}
.batch-results{max-height:400px;overflow-y:auto}
.batch-row{display:flex;align-items:center;gap:.75rem;padding:.5rem .6rem;border-bottom:1px solid var(--glass-border);font-size:.8rem;transition:background var(--transition)}
.batch-row:hover{background:rgba(255,255,255,0.02)}
.batch-nik{font-family:var(--mono);letter-spacing:.08em;flex-shrink:0;min-width:180px}
.batch-status{font-weight:600;min-width:60px}
.batch-status.valid{color:var(--success)}
.batch-status.invalid{color:var(--danger)}
.batch-info{color:var(--text-dim);flex:1}
.history-list{max-height:250px;overflow-y:auto}
.history-item{display:flex;align-items:center;justify-content:space-between;padding:.45rem .5rem;border-bottom:1px solid var(--glass-border);font-size:.8rem;cursor:pointer;transition:background var(--transition)}
.history-item:hover{background:rgba(255,255,255,0.02)}
.history-nik{font-family:var(--mono);letter-spacing:.08em}
.history-status{font-weight:600;font-size:.72rem}
.history-status.valid{color:var(--success)}
.history-status.invalid{color:var(--danger)}
.btn{display:inline-flex;align-items:center;gap:.35rem;padding:.5rem 1rem;border:none;border-radius:var(--radius-sm);font-size:.82rem;font-weight:600;font-family:var(--font);cursor:pointer;transition:all var(--transition);white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 2px 12px rgba(231,76,60,0.3)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(231,76,60,0.4)}
.btn-accent{background:rgba(0,206,201,0.15);color:var(--accent);border:1px solid rgba(0,206,201,0.2)}
.btn-accent:hover{background:rgba(0,206,201,0.25)}
.btn-ghost{background:transparent;color:var(--text-dim);padding:.4rem .6rem}
.btn-ghost:hover{color:var(--text);background:rgba(255,255,255,0.05)}
.btn-sm{font-size:.75rem;padding:.3rem .5rem}
.footer{padding:1rem 1.5rem;text-align:center;font-size:.78rem;color:var(--text-muted);border-top:1px solid var(--border)}
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;z-index:200;display:flex;flex-direction:column;gap:.5rem}
.toast{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--accent);backdrop-filter:blur(20px);border-radius:var(--radius-sm);padding:.75rem 1rem;font-size:.82rem;color:var(--text);box-shadow:0 8px 40px rgba(0,0,0,0.4);animation:slideIn 300ms ease;max-width:320px}
.hidden{display:none !important}
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:rgba(231,76,60,0.3);border-radius:3px}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
@media(max-width:640px){.input-row{flex-direction:column}.result-details{grid-template-columns:1fr}.batch-row{flex-direction:column;align-items:start;gap:.25rem}}