/* =========================================================
   NetPay68 — SaaS Design System (Light theme)
   Tokens + base components. Pair with Tailwind CDN.
   ========================================================= */

:root {
  /* surfaces */
  --bg-base:      #f8fafc;   /* slate-50 */
  --bg-surface:   #ffffff;
  --bg-elevated:  #ffffff;
  --bg-muted:     #f1f5f9;   /* slate-100 */
  --bg-subtle:    #f8fafc;

  /* borders */
  --border:       #e2e8f0;   /* slate-200 */
  --border-strong:#cbd5e1;   /* slate-300 */

  /* text */
  --text:         #0f172a;   /* slate-900 */
  --text-muted:   #64748b;   /* slate-500 */
  --text-soft:    #94a3b8;   /* slate-400 */

  /* brand */
  --brand:        #4f46e5;   /* indigo-600 */
  --brand-hover:  #4338ca;   /* indigo-700 */
  --brand-soft:   #eef2ff;   /* indigo-50 */
  --brand-ring:   rgba(79,70,229,.18);

  /* status */
  --success:      #059669;   /* emerald-600 */
  --success-soft: #ecfdf5;
  --warning:      #d97706;   /* amber-600 */
  --warning-soft: #fffbeb;
  --danger:       #dc2626;   /* red-600 */
  --danger-soft:  #fef2f2;
  --info:         #0284c7;   /* sky-600 */
  --info-soft:    #f0f9ff;

  /* shape */
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  /* shadow */
  --shadow-sm: 0 1px 2px rgba(15,23,42,.04);
  --shadow:    0 1px 3px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-md: 0 4px 12px rgba(15,23,42,.06), 0 2px 4px rgba(15,23,42,.04);
  --shadow-lg: 0 12px 28px rgba(15,23,42,.08), 0 4px 10px rgba(15,23,42,.04);

  /* layout */
  --sidebar-w: 240px;
  --topbar-h:  60px;
}

* { box-sizing: border-box; }
svg { width: 20px; height: 20px; flex-shrink: 0; }
html, body {
  margin: 0;
  background: var(--bg-base);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace; }

/* ---------- Public layout (topbar centered) ---------- */
.public-body { background: var(--bg-base); }
.public-topbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  height: var(--topbar-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px;
  position: sticky; top: 0; z-index: 10;
}
.public-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.public-brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), #818cf8);
  color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 15px;
}
.public-brand .brand-text { font-weight: 700; font-size: 15px; line-height: 1.15; display: flex; flex-direction: column; }
.public-brand .brand-text span { font-size: 11px; font-weight: 500; color: var(--text-soft); }
.public-nav { display: flex; gap: 4px; }
.public-nav a {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px;
  color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 14px;
  transition: background .12s, color .12s;
}
.public-nav a svg { width: 16px; height: 16px; }
.public-nav a:hover { background: var(--bg-muted); color: var(--text); }
.public-nav a.active { background: var(--brand-soft); color: var(--brand); }
.public-main { max-width: 880px; margin: 0 auto; padding: 32px 24px 48px; }
.public-footer { text-align: center; padding: 24px; color: var(--text-soft); font-size: 12px; border-top: 1px solid var(--border); }
@media (max-width: 640px) {
  .public-topbar { padding: 0 16px; }
  .public-brand .brand-text span { display: none; }
  .public-nav a span { display: none; }
  .public-main { padding: 20px 14px; }
}

/* ---------- Admin app shell ---------- */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}
.sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.sidebar .brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 20px;
  font-weight: 700; font-size: 16px; color: var(--text);
  border-bottom: 1px solid var(--border);
}
.sidebar .brand .logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #818cf8);
  display: grid; place-items: center;
  color: #fff; font-weight: 700; font-size: 14px;
}
.sidebar .nav { padding: 12px 10px; flex: 1; overflow-y: auto; }
.sidebar .nav-group-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-soft); padding: 14px 12px 6px;
}
.sidebar a.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px; margin-bottom: 2px;
  color: var(--text-muted); text-decoration: none; font-weight: 500; font-size: 14px;
  transition: background .12s, color .12s;
}
.sidebar a.nav-item:hover { background: var(--bg-muted); color: var(--text); }
.sidebar a.nav-item.active { background: var(--brand-soft); color: var(--brand); }
.sidebar a.nav-item.active svg { color: var(--brand); }
.sidebar a.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--text-soft); }
.sidebar a.nav-item.active svg, .sidebar a.nav-item:hover svg { color: inherit; }
.sidebar a.nav-item .nav-badge {
  margin-left: auto;
  background: var(--warning); color: #fff;
  font-size: 11px; font-weight: 700;
  padding: 1px 7px; border-radius: 999px;
}
.sidebar .sidebar-foot {
  padding: 12px 14px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-soft);
}

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: var(--topbar-h);
  padding: 0 28px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 10;
}
.topbar .page-title { font-size: 16px; font-weight: 600; }
.topbar .top-meta { display: flex; align-items: center; gap: 16px; color: var(--text-muted); font-size: 13px; }
.topbar .top-meta .pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 999px;
  background: var(--bg-muted); color: var(--text); font-weight: 500;
}
.content { padding: 28px; max-width: 1280px; width: 100%; margin: 0 auto; }

@media (max-width: 880px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; left: -260px; z-index: 50; width: 260px;
    transition: left .2s;
  }
  .sidebar.open { left: 0; box-shadow: var(--shadow-lg); }
  .topbar-burger { display: inline-flex !important; }
  .content { padding: 18px; }
}
.topbar-burger {
  display: none; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-surface); cursor: pointer; color: var(--text);
}

/* ---------- Card ---------- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-header h2, .card-header h3 { margin: 0; }
.card-title { font-size: 15px; font-weight: 600; color: var(--text); display: flex; align-items: center; gap: 8px; }
.card-subtitle { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.card-body { padding: 20px; }
.card-footer { padding: 14px 20px; border-top: 1px solid var(--border); background: var(--bg-subtle); border-radius: 0 0 var(--radius-lg) var(--radius-lg); }

/* ---------- Stat card ---------- */
.stat-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-bottom: 20px; }
.stat {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 18px 20px; box-shadow: var(--shadow-sm);
}
.stat .stat-head { display: flex; justify-content: space-between; align-items: center; }
.stat .stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.stat .stat-icon {
  width: 36px; height: 36px; border-radius: 10px;
  display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand);
}
.stat .stat-icon svg { width: 20px; height: 20px; }
.stat .stat-value { font-size: 26px; font-weight: 700; margin-top: 10px; letter-spacing: -.01em; }
.stat .stat-sub { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.stat.brand .stat-icon { background: var(--brand-soft); color: var(--brand); }
.stat.success .stat-icon { background: var(--success-soft); color: var(--success); }
.stat.warning .stat-icon { background: var(--warning-soft); color: var(--warning); }
.stat.danger .stat-icon  { background: var(--danger-soft);  color: var(--danger); }
.stat.info .stat-icon    { background: var(--info-soft);    color: var(--info); }

/* ---------- Forms ---------- */
.form-row { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-bottom: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 500; color: var(--text); }
.field .hint { font-size: 12px; color: var(--text-muted); }
.field .err  { font-size: 12px; color: var(--danger); }

.input, .select, .textarea {
  width: 100%; height: 40px; padding: 0 12px;
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  background: var(--bg-surface); color: var(--text); font-size: 14px;
  font-family: inherit; transition: border-color .12s, box-shadow .12s;
}
.textarea { height: auto; padding: 10px 12px; min-height: 80px; resize: vertical; }
.input:hover, .select:hover, .textarea:hover { border-color: var(--text-soft); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-ring);
}
.input-group { position: relative; }
.input-group svg.icon-left {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; color: var(--text-soft);
}
.input-group .input { padding-left: 38px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 40px; padding: 0 16px;
  border-radius: var(--radius); border: 1px solid transparent;
  font-weight: 600; font-size: 14px; cursor: pointer;
  font-family: inherit; line-height: 1; white-space: nowrap;
  transition: background .12s, border-color .12s, color .12s, box-shadow .12s;
}
.btn svg { width: 16px; height: 16px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-hover); }
.btn-primary:focus { box-shadow: 0 0 0 3px var(--brand-ring); outline: none; }
.btn-secondary { background: var(--bg-surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-muted); }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg-muted); color: var(--text); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(.95); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(.95); }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.btn-xs { height: 28px; padding: 0 10px; font-size: 12px; gap: 4px; }
.btn-xs svg, .btn-sm svg { width: 14px; height: 14px; }
.btn-block { width: 100%; }
.btn-icon { width: 36px; padding: 0; }

/* ---------- Segmented / Tabs ---------- */
.segmented {
  display: inline-flex; padding: 4px; background: var(--bg-muted);
  border-radius: var(--radius); gap: 2px;
}
.segmented .seg {
  padding: 7px 14px; border-radius: 7px; font-size: 13px; font-weight: 500;
  color: var(--text-muted); cursor: pointer; user-select: none; border: 0; background: transparent;
  display: inline-flex; align-items: center; gap: 6px;
}
.segmented .seg svg { width: 16px; height: 16px; }
.segmented .seg.active { background: var(--bg-surface); color: var(--text); box-shadow: var(--shadow-sm); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--bg-muted); color: var(--text-muted);
  font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid transparent;
  text-decoration: none;
}
.chip:hover { background: var(--bg-elevated); color: var(--text); border-color: var(--border); }
.chip.active { background: var(--brand-soft); color: var(--brand); border-color: rgba(79,70,229,.2); }

/* ---------- Badge ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .02em;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-pending { background: var(--warning-soft); color: var(--warning); }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-failed  { background: var(--danger-soft);  color: var(--danger); }
.badge-expired { background: var(--bg-muted);     color: var(--text-soft); }
.badge-info    { background: var(--info-soft);    color: var(--info); }

/* ---------- Alert ---------- */
.alert {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px; border-radius: var(--radius);
  border: 1px solid; font-size: 14px;
}
.alert svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.alert-success { background: var(--success-soft); color: #065f46; border-color: #a7f3d0; }
.alert-error   { background: var(--danger-soft);  color: #991b1b; border-color: #fecaca; }
.alert-info    { background: var(--info-soft);    color: #075985; border-color: #bae6fd; }
.alert-warning { background: var(--warning-soft); color: #92400e; border-color: #fde68a; }

/* ---------- Table ---------- */
.table-wrap { overflow: auto; border-radius: var(--radius-lg); }
table.tbl { width: 100%; border-collapse: collapse; background: var(--bg-surface); }
table.tbl th, table.tbl td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
table.tbl th {
  font-size: 11px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--text-soft); font-weight: 600; background: var(--bg-subtle);
  position: sticky; top: 0;
}
table.tbl tbody tr:hover { background: var(--bg-subtle); }
table.tbl tbody tr:last-child td { border-bottom: 0; }
.empty {
  padding: 48px 20px; text-align: center; color: var(--text-muted);
}
.empty svg { width: 40px; height: 40px; color: var(--text-soft); margin-bottom: 8px; }

/* ---------- Method picker (icon grid) ---------- */
.method-grid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
.method {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 14px 8px; border: 1px solid var(--border);
  border-radius: var(--radius); background: var(--bg-surface);
  cursor: pointer; transition: all .12s; text-align: center;
}
.method:hover { border-color: var(--brand); background: var(--brand-soft); }
.method.active { border-color: var(--brand); background: var(--brand-soft); box-shadow: 0 0 0 3px var(--brand-ring); }
.method svg { width: 22px; height: 22px; color: var(--text-muted); }
.method.active svg { color: var(--brand); }
.method span { font-size: 12px; font-weight: 600; color: var(--text); }

/* ---------- Copyable value ---------- */
.kv { display: grid; gap: 10px; }
.kv .kv-row { display: flex; flex-direction: column; gap: 4px; }
.kv .kv-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.kv .kv-value {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 10px 12px; background: var(--bg-muted); border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 14px; font-weight: 600;
  word-break: break-all;
}
.kv .kv-value.lg { font-size: 18px; }

/* ---------- QR ---------- */
.qr-img {
  width: 220px; height: 220px; background: #fff; padding: 8px;
  border: 1px solid var(--border); border-radius: var(--radius);
}

/* ---------- Loading spinner ---------- */
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border-radius: 50%;
  background:
    conic-gradient(from 0deg, transparent 0%, var(--info) 90%, transparent 100%);
  -webkit-mask: radial-gradient(circle 6px at center, transparent 99%, #000 100%);
          mask: radial-gradient(circle 6px at center, transparent 99%, #000 100%);
  animation: spin 1s linear infinite;
  flex-shrink: 0;
}
.spinner-sm { width: 14px; height: 14px; }
.spinner-brand { background: conic-gradient(from 0deg, transparent 0%, var(--brand) 90%, transparent 100%); }
@keyframes spin { to { transform: rotate(360deg); } }

/* Alert pending — shimmer background */
.alert.alert-pending {
  position: relative; overflow: hidden;
  background: linear-gradient(90deg, var(--info-soft), #e0f2fe, var(--info-soft));
  background-size: 200% 100%;
  color: #075985; border-color: #bae6fd;
  animation: shimmer 2.4s linear infinite;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Animated dots after text */
.dots::after {
  content: ''; display: inline-block; width: 1em; text-align: left;
  animation: dots 1.4s steps(4, end) infinite;
}
@keyframes dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
}

/* Pulsing ring on timeline active row */
.timeline .tl-row.active .tl-dot {
  position: relative; background: var(--brand-soft); color: var(--brand);
}
.timeline .tl-row.active .tl-dot::before,
.timeline .tl-row.active .tl-dot::after {
  content: ''; position: absolute; inset: -2px;
  border-radius: 50%; border: 2px solid var(--brand);
  opacity: 0; animation: pulse-ring 2s ease-out infinite;
}
.timeline .tl-row.active .tl-dot::after { animation-delay: 1s; }
@keyframes pulse-ring {
  0%   { transform: scale(.7); opacity: .55; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Subtle bob on the clock icon inside active timeline dot */
.timeline .tl-row.active .tl-dot svg {
  animation: tick 1.2s ease-in-out infinite;
}
@keyframes tick {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.12); }
}

/* ---------- Timeline ---------- */
.timeline { display: flex; flex-direction: column; gap: 14px; }
.timeline .tl-row { display: flex; gap: 12px; align-items: flex-start; }
.timeline .tl-dot {
  width: 24px; height: 24px; border-radius: 50%; background: var(--bg-muted);
  display: grid; place-items: center; flex-shrink: 0; color: var(--text-soft);
}
.timeline .tl-row.done .tl-dot { background: var(--success-soft); color: var(--success); }
.timeline .tl-row.active .tl-dot { background: var(--brand-soft); color: var(--brand); }
.timeline .tl-row.failed .tl-dot { background: var(--danger-soft); color: var(--danger); }
.timeline .tl-dot svg { width: 14px; height: 14px; }
.timeline .tl-body { flex: 1; padding-top: 2px; }
.timeline .tl-title { font-size: 14px; font-weight: 600; }
.timeline .tl-sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15,23,42,.5);
  display: none; align-items: center; justify-content: center; z-index: 100; padding: 16px;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--bg-surface); border-radius: var(--radius-lg);
  width: 100%; max-width: 460px; box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 600; }
.modal-body { padding: 20px; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; gap: 8px; justify-content: flex-end; background: var(--bg-subtle); }

/* ---------- Toast ---------- */
#toast-stack {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  display: flex; flex-direction: column; gap: 8px;
}
.toast {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
  display: flex; gap: 10px; align-items: center;
  box-shadow: var(--shadow-md); min-width: 240px; font-size: 14px;
  animation: toast-in .2s ease-out;
}
.toast svg { width: 18px; height: 18px; flex-shrink: 0; }
.toast.success svg { color: var(--success); }
.toast.error svg { color: var(--danger); }
.toast.info svg { color: var(--info); }
@keyframes toast-in { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- Utility ---------- */
.hidden { display: none !important; }
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; } .mb-6 { margin-bottom: 24px; }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; } .mt-6 { margin-top: 24px; }
.text-muted { color: var(--text-muted); } .text-soft { color: var(--text-soft); }
.text-sm { font-size: 13px; } .text-xs { font-size: 12px; } .text-lg { font-size: 16px; }
.font-bold { font-weight: 700; } .font-semibold { font-weight: 600; }
.w-full { width: 100%; }

/* ---------- Auth shell ---------- */
.auth-shell {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(circle at 20% 0%, rgba(99,102,241,.08), transparent 50%),
    radial-gradient(circle at 90% 100%, rgba(99,102,241,.06), transparent 50%),
    var(--bg-base);
}
.auth-card { width: 100%; max-width: 400px; }
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 18px; }
.auth-brand .logo {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), #818cf8);
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 20px;
}
.auth-brand h1 { font-size: 18px; font-weight: 700; margin: 0; }
.auth-brand p { color: var(--text-muted); font-size: 13px; margin: 0; }
