:root{
  --bg: #1F1B2E;
  --panel: #262143;
  --panel-line: #3A3358;
  --ink: #EDE8F5;
  --ink-dim: #A79FC4;
  --rose: #C1596B;
  --rose-dim: #7A3E4B;
  --teal: #3E8E85;
  --teal-dim: #2C5C57;
  --brass: #D4A752;
  --paper: #F4EFE6;
  --paper-ink: #2A2440;
  --paper-ink-dim: #6B6182;
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'Inter', sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{
  max-width:980px;
  margin:0 auto;
  padding:52px 24px 90px;
}

.masthead{
  text-align:center;
  margin-bottom:48px;
}
.masthead h1{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:44px;
  margin:0 0 10px;
  letter-spacing:-0.01em;
}
.masthead p{
  color:var(--ink-dim);
  font-size:15.5px;
  margin:0;
  max-width:440px;
  margin-inline:auto;
  line-height:1.5;
}

.duo{
  display:grid;
  grid-template-columns:1fr 128px 1fr;
  align-items:stretch;
  gap:0;
  margin-bottom:40px;
}
.persona{
  background:var(--panel);
  border:1px solid var(--panel-line);
  padding:26px 24px;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.persona.a{ border-right:none; border-top:2px solid var(--rose); }
.persona.b{ border-left:none; border-top:2px solid var(--teal); }

.persona label{
  display:block;
  font-size:12.5px;
  color:var(--ink-dim);
  margin-bottom:6px;
}
.name-input{
  background:none;
  border:none;
  border-bottom:1px solid var(--panel-line);
  color:var(--ink);
  font-family:'Fraunces', serif;
  font-size:21px;
  font-weight:500;
  padding:2px 0 8px;
  width:100%;
}
.persona.a .name-input{ color:var(--rose); }
.persona.b .name-input{ color:var(--teal); }
.name-input:focus{ outline:none; border-bottom-color:currentColor; }

.income-row{
  display:flex;
  align-items:baseline;
  gap:8px;
}
.income-row .sym{
  font-family:'Fraunces', serif;
  font-size:20px;
  color:var(--ink-dim);
}
.income-input{
  background:none;
  border:none;
  border-bottom:1px solid var(--panel-line);
  color:var(--ink);
  font-family:'Fraunces', serif;
  font-size:28px;
  font-weight:500;
  padding:2px 0 6px;
  width:100%;
  -moz-appearance:textfield;
}
.income-input::-webkit-outer-spin-button,
.income-input::-webkit-inner-spin-button{ -webkit-appearance:none; margin:0; }
.income-input:focus{ outline:none; border-bottom-color:var(--ink); }

.scale-col{
  background:var(--panel);
  border:1px solid var(--panel-line);
  border-left:none;
  border-right:none;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:10px 4px;
}




.ledger-section{
  margin-bottom:40px;
}
.ledger-section h2{
  font-family:'Fraunces', serif;
  font-weight:500;
  font-size:19px;
  margin:0 0 14px;
}
.expense-row{
  display:grid;
  grid-template-columns:1fr 140px 32px;
  gap:14px;
  align-items:center;
  padding:10px 0;
  border-bottom:1px solid var(--panel-line);
}
.expense-row input[type=text]{
  background:none;
  border:none;
  color:var(--ink);
  font-family:'Inter', sans-serif;
  font-size:15px;
  padding:4px 0;
}
.expense-row input[type=text]:focus{ outline:none; }
.expense-row input[type=text]::placeholder{ color:var(--ink-dim); }
.expense-row .amt-wrap{
  display:flex;
  align-items:baseline;
  gap:6px;
  justify-content:flex-end;
}
.expense-row .amt-wrap .sym{ color:var(--ink-dim); font-size:14px; }
.expense-row input[type=number]{
  background:none;
  border:none;
  color:var(--ink);
  font-family:'Fraunces', serif;
  font-size:17px;
  text-align:right;
  width:100%;
  padding:4px 0;
  -moz-appearance:textfield;
}
.expense-row input[type=number]::-webkit-outer-spin-button,
.expense-row input[type=number]::-webkit-inner-spin-button{ -webkit-appearance:none; margin:0; }
.expense-row input[type=number]:focus{ outline:none; }
.remove-btn{
  background:none;
  border:none;
  color:var(--ink-dim);
  font-size:19px;
  cursor:pointer;
  line-height:1;
  padding:4px;
  justify-self:center;
}
.remove-btn:hover{ color:var(--rose); }

.ledger-foot{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-top:16px;
}
.ledger-actions{
  display:flex;
  gap:10px;
}
.add-expense{
  background:none;
  border:1px dashed var(--panel-line);
  color:var(--ink-dim);
  font-family:'Inter', sans-serif;
  font-size:14px;
  padding:9px 16px;
  cursor:pointer;
}
.add-expense:hover{ border-color:var(--brass); color:var(--brass); }
.reset-expenses{
  background:none;
  border:1px solid transparent;
  color:var(--ink-dim);
  font-family:'Inter', sans-serif;
  font-size:14px;
  padding:9px 14px;
  cursor:pointer;
}
.reset-expenses:hover{ color:var(--rose); }
.total-gastos{
  font-family:'Fraunces', serif;
  font-size:17px;
}
.total-gastos .n{ font-size:22px; }

.results{
  background:var(--paper);
  color:var(--paper-ink);
  padding:34px 30px;
}
.results h2{
  font-family:'Fraunces', serif;
  font-weight:500;
  font-size:19px;
  margin:0 0 24px;
}
.results-duo{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
}
.result-card{
  padding:0 22px;
}
.result-card + .result-card{ border-left:1px solid rgba(42,36,64,0.14); }
.result-card .who{
  font-size:13.5px;
  color:var(--paper-ink-dim);
  margin-bottom:6px;
}
.result-card .who .dot{
  display:inline-block;
  width:8px; height:8px;
  border-radius:50%;
  margin-right:7px;
  position:relative;
  top:-1px;
}
.result-card.a .who .dot{ background:var(--rose); }
.result-card.b .who .dot{ background:var(--teal); }
.result-card .aporte{
  font-family:'Fraunces', serif;
  font-size:34px;
  font-weight:600;
  margin-bottom:2px;
}
.result-card .pct{
  font-size:13.5px;
  color:var(--paper-ink-dim);
  margin-bottom:16px;
}
.result-card .libre{
  font-size:14px;
  color:var(--paper-ink-dim);
}
.result-card .libre b{
  color:var(--paper-ink);
  font-weight:600;
}

.fair-note{
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid rgba(42,36,64,0.14);
  text-align:center;
  font-size:14px;
  color:var(--paper-ink-dim);
}
.fair-note b{
  color:var(--paper-ink);
  font-family:'Fraunces', serif;
  font-size:16px;
  font-weight:600;
}

@media (max-width:640px){
  .duo{ grid-template-columns:1fr; }
  .scale-col{ border-left:1px solid var(--panel-line); border-right:1px solid var(--panel-line); padding:20px; }
  .persona.a{ border-right:1px solid var(--panel-line); }
  .persona.b{ border-left:1px solid var(--panel-line); }
  .results-duo{ grid-template-columns:1fr; gap:22px; }
  .result-card + .result-card{ border-left:none; border-top:1px solid rgba(42,36,64,0.14); padding-top:18px; }
}

.site-footer{
  margin-top:36px;
  text-align:center;
  font-size:13px;
  color:var(--ink-dim);
}
.site-footer a{
  color:var(--brass);
  text-decoration:none;
}
.site-footer a:hover{
  text-decoration:underline;
}

.intro-info {
    max-width: 760px;
    margin: 0 auto 45px;
    padding: 0;
    background: rgba(255, 255, 255, 0.025);
    border-left: 3px solid #d6a84f;
    border-radius: 0 8px 8px 0;
    overflow: hidden;
}

.intro-info summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    list-style: none;
    color: #f4eee4;
    font-family: Georgia, serif;
    font-size: 1.35rem;
    font-weight: 600;
    user-select: none;
}

.intro-info summary::-webkit-details-marker {
    display: none;
}

.intro-arrow {
    color: #d6a84f;
    font-family: Arial, sans-serif;
    font-size: 1.5rem;
    transition: transform 0.25s ease;
}

.intro-info[open] .intro-arrow {
    transform: rotate(180deg);
}

.intro-content {
    padding: 0 24px 24px;
    animation: introOpen 0.25s ease;
}

.intro-content p {
    margin: 0 0 14px;
    color: #b8b2cf;
    font-size: 0.98rem;
    line-height: 1.7;
}

.intro-content p:last-child {
    margin-bottom: 0;
}

.intro-content strong {
    color: #f0e9dc;
    font-weight: 600;
}

.intro-note {
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@keyframes introOpen {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}