@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@300;400;600;700&display=swap');

:root {
  --bg:           #07090f;
  --glass:        rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.09);
  --alice:   #00d2ff;
  --bob:     #00ff88;
  --carol:   #ff007a;
  --asp:     #ffcc00;
  --text:    #e8eaf0;
  --dim:     #6a7080;
  --danger:  #ff4d4d;
  --radius:  10px;
  --font:    'Exo 2', system-ui, sans-serif;
  --mono:    'Courier New', Courier, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  height: 100vh;
  overflow: hidden;
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

header {
  height: 52px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--glass-border);
  position: relative;
  z-index: 10;
}

header h1 {
  font-family: var(--font);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--asp);
}

.header-right { display: flex; align-items: center; gap: 14px; }

.asp-label {
  font-size: 0.7rem;
  color: var(--asp);
  font-family: var(--font);
  font-weight: 600;
  letter-spacing: 0.1em;
  opacity: 0.8;
}

.asp-round {
  font-size: 0.68rem;
  color: var(--dim);
  font-family: var(--font);
  letter-spacing: 0.06em;
}

.layout {
  display: grid;
  grid-template-columns: 1fr 520px;
  gap: 12px;
  padding: 12px;
  height: calc(100vh - 52px);
}

.vtxo-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

.vtxo-panel-title {
  padding: 10px 16px 8px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--asp);
  font-family: var(--font);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.vtxo-graph-wrap {
  flex: 1;
  position: relative;
  overflow: auto;
  min-height: 0;
}

#vtxo-svg {
  position: absolute;
  top: 0; left: 0;
  pointer-events: none;
  overflow: visible;
}

#vtxo-graph {
  position: relative;
}

.vtxo-node {
  position: absolute;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  text-align: center;
  line-height: 1.3;
  border: 2px solid;
  transition: opacity 0.4s ease, filter 0.4s ease;
  animation: nodeIn 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes nodeIn {
  0%   { transform: scale(0); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.vtxo-node .n-owner  {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.vtxo-node .n-amount {
  font-size: 0.72rem;
  font-weight: 600;
  color: #ffffff;  
  margin-top: 1px;
}
.vtxo-node .n-id {
  font-size: 0.5rem;
  font-weight: 400;
  color: rgba(255,255,255,0.5);
  margin-top: 1px;
  font-family: var(--mono);
}

.vtxo-node.spent {
  opacity: 0.2 !important;
  filter: grayscale(1) !important;
}

.vtxo-node.exited {
  opacity: 0.12 !important;
  filter: grayscale(1) brightness(0.4) !important;
}

.vtxo-node .n-exited {
  font-size: 0.46rem;
  color: var(--danger);
  margin-top: 2px;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.vtxo-line {
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
}
.vtxo-line.solid  { opacity: 0.75; }
.vtxo-line.dashed { stroke-dasharray: 5 4; opacity: 0.4; }

.leak-alert {
  position: absolute;
  top: 52px; right: 14px;
  padding: 6px 14px;
  color: var(--danger);
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.68rem;
  font-family: var(--font);
  letter-spacing: 0.06em;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.4s cubic-bezier(0.175,0.885,0.32,1.275);
  z-index: 100;
  pointer-events: none;
}
.leak-alert.show { opacity: 1; transform: translateY(0); }

.sidebar {
  display: grid;
  grid-template-rows: auto auto auto 1fr;
  gap: 10px;
  overflow: hidden;
}

.user-card {
  padding: 11px 14px;
  position: relative;
  overflow: hidden;
}

.alice-card .card-header strong { color: var(--alice); font-weight: 700; }
.bob-card .card-header strong   { color: var(--bob);   font-weight: 700; }
.carol-card .card-header strong { color: var(--carol); font-weight: 700; }

.card-danger { outline: 1px solid var(--danger) !important; }

.card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.card-header strong {
  font-size: 0.9rem;
  font-weight: 600;
  flex: 1;
  color: #fff;
}

.user-balance {
  font-family: var(--font);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text);
}

.card-actions { display: flex; gap: 5px; flex-wrap: wrap; }

.btn {
  padding: 5px 11px;
  border-radius: 5px;
  border: none;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.18s ease;
  letter-spacing: 0.03em;
}
.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text);
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.26); }
.btn-primary {
  background: var(--asp);
  color: #07090f;
  font-weight: 700;
  box-shadow: 0 0 12px rgba(255,204,0,0.3);
}
.btn-primary:hover { background: #ffd740; box-shadow: 0 0 22px rgba(255,204,0,0.55); transform: scale(1.04); }

.log-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

.log-title {
  padding: 8px 13px 6px;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--asp);
  font-family: var(--font);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.log-container {
  flex: 1;
  overflow-y: auto;
  padding: 8px 11px;
  font-family: var(--mono);
  font-size: 0.67rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}

.log-entry {
  margin-bottom: 5px;
  padding-left: 7px;
  border-left: 2px solid transparent;
  animation: slideIn 0.28s ease-out;
  line-height: 1.5;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.log-entry.asp  { border-color: var(--asp);    color: rgba(255,255,255,0.8); }
.log-entry.leak { border-color: var(--danger); color: var(--danger); }
.log-timestamp  { color: var(--dim); margin-right: 7px; }

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.75);
  display: none; justify-content: center; align-items: center;
  z-index: 1000; backdrop-filter: blur(6px);
}

.modal-box { width: 375px; padding: 26px; }

.modal-box h3 {
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
  color: var(--asp);
}

.modal-box label {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--dim);
  margin-bottom: 5px;
  font-family: var(--font);
  letter-spacing: 0.04em;
}

.modal-input {
  width: 100%; padding: 9px 11px;
  background: rgba(0,0,0,0.45);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.85rem;
  font-family: var(--font);
  margin-bottom: 14px;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
.modal-input:focus { border-color: var(--asp); }
.modal-input option { background: #12141c; }

.modal-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 3px; }