/* ============================================================
   Invoice Generator — premium dark + gold, paper invoice
   Offline-friendly: tanpa webfont, tanpa CDN.
   ============================================================ */
:root{
  --bg:#141824; --bg2:#1c2233;
  --ink:#eef1f8; --ink-dim:#9aa3bd;
  --gold:#d9a441; --gold-deep:#a97a24; --gold-glow:rgba(217,164,65,.45);
  --card:#20263a; --paper:#ffffff;
  --radius:20px;
  --shadow-deep: 12px 14px 34px rgba(0,0,0,.45), -6px -6px 18px rgba(255,255,255,.04);
  --gold-btn: linear-gradient(145deg,#f0c25e,#c08f2b);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
body{
  font-family: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, -apple-system, sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1100px 550px at 90% -5%, rgba(217,164,65,.12), transparent 60%),
    radial-gradient(800px 500px at -10% 30%, rgba(80,120,255,.08), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--bg2));
  min-height:100vh; padding-bottom:60px;
}
.topbar{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 20px;background:rgba(20,24,36,.72);
  -webkit-backdrop-filter:blur(18px) saturate(1.3);backdrop-filter:blur(18px) saturate(1.3);
  border-bottom:1px solid rgba(217,164,65,.25);box-shadow:0 10px 30px rgba(0,0,0,.35);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem}
.brand .logo{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;font-size:1.5rem;
  background:var(--gold-btn);color:#2a1f08;
  box-shadow:0 6px 18px var(--gold-glow), inset 2px 2px 4px rgba(255,255,255,.55);
}
.brand small{display:block;font-size:.68rem;color:var(--ink-dim);font-weight:600}
.wrap{max-width:1240px;margin:0 auto;padding:22px 18px}
.layout{display:grid;grid-template-columns:420px 1fr;gap:22px;align-items:start}
@media(max-width:980px){.layout{grid-template-columns:1fr}}

.panel{
  background:linear-gradient(150deg,#242b44,#1b2135);
  border-radius:var(--radius);padding:22px;
  box-shadow:var(--shadow-deep);border:1px solid rgba(255,255,255,.07);
}
.panel h2{font-size:1rem;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.panel h2 .dot{width:9px;height:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold-glow)}
.field{margin-bottom:13px}
.field label{display:block;font-size:.72rem;font-weight:800;color:var(--ink-dim);margin-bottom:6px;letter-spacing:.6px;text-transform:uppercase}
.input,select.input,textarea.input{
  width:100%;font:inherit;color:var(--ink);background:#141a2c;border:0;border-radius:13px;padding:11px 14px;
  box-shadow:inset 3px 3px 8px rgba(0,0,0,.4), inset -2px -2px 6px rgba(255,255,255,.05);
  outline:none;transition:box-shadow .2s;
}
.input:focus{box-shadow:inset 3px 3px 8px rgba(0,0,0,.4), 0 0 0 3px rgba(217,164,65,.3)}
textarea.input{resize:vertical;min-height:56px}
.row{display:flex;gap:10px}.row .field{flex:1}
.btn{
  border:0;cursor:pointer;font:inherit;font-weight:800;padding:12px 20px;border-radius:14px;color:var(--ink);
  background:linear-gradient(145deg,#2c3450,#1e2438);
  box-shadow:6px 6px 14px rgba(0,0,0,.4), -3px -3px 10px rgba(255,255,255,.05), inset 1px 1px 2px rgba(255,255,255,.08);
  transition:transform .12s;
}
.btn:active{transform:translateY(2px)}
.btn-gold{color:#2a1f08;background:var(--gold-btn);
  box-shadow:0 10px 26px var(--gold-glow), inset 2px 2px 4px rgba(255,255,255,.5);text-shadow:none}
.btn-wa{color:#fff;background:linear-gradient(145deg,#2fd06a,#1a9e4b);
  box-shadow:0 10px 26px rgba(46,208,106,.35), inset 2px 2px 4px rgba(255,255,255,.35)}
.btn-danger{color:#fff;background:linear-gradient(145deg,#e0655f,#a83a34)}
.btn-sm{padding:8px 13px;font-size:.8rem;border-radius:11px}
.btn-block{width:100%;margin-top:8px}

/* item rows */
.irow{display:grid;grid-template-columns:1fr 64px 110px 36px;gap:8px;margin-bottom:8px;align-items:center}
.irow .input{padding:10px 11px;font-size:.88rem}
.irow .del{background:rgba(224,101,95,.15);color:#ff9a94;border:0;border-radius:10px;width:36px;height:40px;cursor:pointer;font-size:1rem}
.ihead{display:grid;grid-template-columns:1fr 64px 110px 36px;gap:8px;font-size:.68rem;color:var(--ink-dim);font-weight:800;text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}

/* ---------- PAPER INVOICE ---------- */
.paper-wrap{display:flex;flex-direction:column;gap:14px}
.paper{
  background:var(--paper);color:#1d2433;border-radius:14px;padding:44px 46px;
  box-shadow:0 30px 70px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.06);
  position:relative;overflow:hidden;font-size:.92rem;
}
.paper::before{content:"";position:absolute;top:0;left:0;right:0;height:10px;
  background:linear-gradient(90deg,#d9a441,#f0c25e,#d9a441)}
.inv-head{display:flex;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.inv-brand{font-size:1.5rem;font-weight:800;color:#141824;letter-spacing:.3px}
.inv-brand .mark{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:13px;
  background:linear-gradient(145deg,#f0c25e,#c08f2b);color:#fff;font-size:1.4rem;margin-right:10px;
  box-shadow:0 6px 14px rgba(217,164,65,.4);vertical-align:middle}
.inv-meta{text-align:right;font-size:.85rem;color:#5a6478;line-height:1.7}
.inv-meta b{color:#141824}
.inv-title{font-size:2rem;font-weight:800;letter-spacing:6px;color:#141824;margin:6px 0 2px}
.inv-no{color:var(--gold-deep);font-weight:800}
.stamp{
  display:inline-block;margin-top:10px;padding:7px 20px;border:3px solid;border-radius:10px;
  font-weight:800;letter-spacing:3px;font-size:.85rem;transform:rotate(-6deg);
}
.stamp.lunas{color:#1a9e4b;border-color:#1a9e4b;background:rgba(26,158,75,.08)}
.stamp.belum{color:#c07a1e;border-color:#c07a1e;background:rgba(217,164,65,.1)}
.bill-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0 24px}
.bill-box h4{font-size:.72rem;text-transform:uppercase;letter-spacing:1.5px;color:#8a93a8;margin-bottom:8px}
.bill-box .nm{font-weight:800;font-size:1.02rem;color:#141824}
.bill-box .dt{color:#5a6478;font-size:.86rem;line-height:1.6;white-space:pre-line}
table.inv-table{width:100%;border-collapse:collapse;margin:6px 0 18px}
.inv-table th{
  text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:1.2px;color:#fff;
  background:linear-gradient(145deg,#232838,#161b2b);padding:12px 12px;
}
.inv-table th:first-child{border-radius:10px 0 0 10px}
.inv-table th:last-child{border-radius:0 10px 10px 0;text-align:right}
.inv-table td{padding:13px 12px;border-bottom:1px solid #edf0f6;vertical-align:top}
.inv-table td.r{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.inv-table .d{font-weight:700;color:#141824}
.inv-totals{margin-left:auto;width:320px;max-width:100%}
.trow{display:flex;justify-content:space-between;padding:7px 2px;color:#5a6478;font-size:.9rem;font-variant-numeric:tabular-nums}
.trow.grand{border-top:2px solid #141824;margin-top:8px;padding-top:12px;color:#141824;font-weight:800;font-size:1.15rem}
.trow.grand .val{color:#a97a24}
.terbilang{
  margin:18px 0;padding:14px 18px;border-radius:12px;font-style:italic;color:#5a6478;font-size:.88rem;
  background:linear-gradient(145deg,#fbf6ea,#f5ecd8);border:1px dashed #d9a441;
}
.inv-foot{margin-top:26px;display:flex;justify-content:space-between;gap:20px;align-items:flex-end}
.sign{text-align:center;color:#5a6478;font-size:.82rem}
.sign .line{margin-top:56px;border-top:1.5px solid #141824;padding-top:6px;font-weight:700;color:#141824;min-width:180px}
.notes{font-size:.82rem;color:#5a6478;margin-top:4px;max-width:340px;line-height:1.6}
.toolbar{display:flex;gap:10px;flex-wrap:wrap}

/* history */
.hist-item{
  display:flex;align-items:center;gap:12px;padding:13px 15px;border-radius:14px;margin-bottom:10px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);
}
.hist-item .no{font-weight:800;font-size:.88rem}
.hist-item .cl{color:var(--ink-dim);font-size:.8rem}
.hist-item .tot{margin-left:auto;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums}
.hist-item .acts{display:flex;gap:6px}
.pill{font-size:.68rem;font-weight:800;padding:4px 11px;border-radius:999px;letter-spacing:.5px}
.pill.lunas{background:rgba(46,208,106,.16);color:#5fe08d}
.pill.belum{background:rgba(217,164,65,.16);color:#f0c25e}
.paper .pill{background:#232838;color:#f0c25e;font-style:normal;box-shadow:none}
.empty{text-align:center;color:var(--ink-dim);padding:26px 8px;font-size:.9rem}
.empty .big{font-size:2.2rem;display:block;margin-bottom:8px}
.section-title{font-size:1rem;font-weight:800;margin:26px 4px 14px;display:flex;align-items:center;gap:10px;color:var(--ink)}
.section-title::after{content:"";flex:1;height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(217,164,65,.4),transparent)}
.toast{
  position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(80px);
  background:#0f1420;color:#fff;font-weight:700;font-size:.9rem;border:1px solid rgba(217,164,65,.4);
  padding:13px 24px;border-radius:999px;box-shadow:0 14px 34px rgba(0,0,0,.5);
  transition:transform .3s ease;z-index:99;max-width:90vw;text-align:center;
}
.toast.show{transform:translateX(-50%) translateY(0)}
@media(max-width:640px){
  .paper{padding:26px 20px}
  .inv-title{font-size:1.5rem;letter-spacing:3px}
  .bill-grid{grid-template-columns:1fr}
  .irow{grid-template-columns:1fr 56px 96px 32px}
  .ihead{grid-template-columns:1fr 56px 96px 32px}
}

/* ---------- Print: hanya kertas invoice ---------- */
#print-area{display:none}
@media print{
  body{background:#fff!important;padding:0}
  body>*{display:none!important}
  #print-area{display:block!important}
  .paper{box-shadow:none!important;border-radius:0!important;margin:0!important;max-width:100%!important}
  .paper::before{height:8px}
}