/* ════════════════════════════════════════════════
   CALCULADORA DE ANÁLISIS
═══════════════════════════════════════════════════ */
.calc-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.calc-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: calc(var(--glow-on) * 0.7);
}

.calc-head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.calc-head-icon {
  width: 26px; height: 26px;
  border-radius: 7px;
  background: var(--accent-dim);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 calc(var(--glow-on) * 10px) var(--accent-glow) inset;
}
.calc-head h3 {
  flex: 1;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .01em;
}
.calc-ref {
  font-size: 11.5px;
  font-family: var(--mono);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}
.calc-ref em {
  font-style: normal;
  color: var(--text-3);
  margin-left: 4px;
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: .04em;
  font-size: 10.5px;
  text-transform: uppercase;
}

/* ── Inputs bidireccionales ── */
.calc-inputs {
  display: grid;
  grid-template-columns: 1fr 22px 1fr;
  align-items: end;
  gap: 8px;
}
.calc-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.calc-field > span {
  font-size: 10.5px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
}
.calc-input {
  display: flex;
  align-items: center;
  height: 40px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 10px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.calc-input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  background: var(--bg-card-2);
}
.calc-input em {
  font-style: normal;
  color: var(--text-3);
  font-size: 13px;
  margin-right: 4px;
}
.calc-input input {
  flex: 1;
  min-width: 0;
  background: none;
  border: 0;
  outline: 0;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  -moz-appearance: textfield;
}
.calc-input input::-webkit-inner-spin-button,
.calc-input input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }

.calc-equals {
  align-self: center;
  margin-top: 18px;
  color: var(--text-3);
  display: flex;
  justify-content: center;
}

/* ── Resultado actual destacado ── */
.calc-result-current {
  background:
    linear-gradient(135deg, color-mix(in oklab, var(--accent) 12%, var(--bg-card)) 0%, var(--bg-card) 80%);
  border: 1px solid color-mix(in oklab, var(--accent) 25%, var(--border));
  border-radius: 10px;
  padding: 14px 16px;
}
.calc-result-label {
  font-size: 10.5px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 600;
  margin-bottom: 4px;
}
.calc-result-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.5px;
  text-shadow: 0 0 calc(var(--glow-on) * 12px) var(--accent-glow);
}
.calc-curr {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-2);
  margin-right: 3px;
  text-shadow: none;
}

.calc-divider {
  height: 1px;
  background: var(--border);
  margin: 0 -4px;
}

/* ── Proyección ── */
.calc-project { display: flex; flex-direction: column; gap: 10px; }
.calc-project-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-2);
  gap: 10px;
}
.calc-project-head > span:first-child { white-space: nowrap; }
.calc-project-pct {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-transform: none;
  letter-spacing: 0;
}
.calc-project-pct.up { color: var(--accent); }
.calc-project-pct.dn { color: var(--neg); }

.calc-target-input {
  display: flex;
  align-items: center;
  height: 44px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 12px;
  font-family: var(--mono);
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.calc-target-input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
  background: var(--bg-card-2);
}
.calc-target-input em {
  font-style: normal;
  color: var(--text-3);
  font-size: 14px;
  margin-right: 6px;
}
.calc-target-input input {
  flex: 1;
  min-width: 0;
  background: none;
  border: 0;
  outline: 0;
  color: var(--text);
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
}
.calc-target-input input::-webkit-inner-spin-button,
.calc-target-input input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }

/* ── Slider ── */
.calc-slider {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  outline: none;
  margin: 2px 0;
}
.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-card);
  box-shadow:
    0 0 0 1px var(--accent),
    0 0 calc(var(--glow-on) * 12px) var(--accent-glow);
  cursor: pointer;
}
.calc-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-card);
  box-shadow:
    0 0 0 1px var(--accent),
    0 0 calc(var(--glow-on) * 12px) var(--accent-glow);
  cursor: pointer;
}

.calc-slider-marks {
  position: relative;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-3);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  margin-top: -2px;
}
.calc-mark-now {
  position: absolute;
  transform: translateX(-50%);
  color: var(--accent);
  font-weight: 600;
}

/* ── Presets ── */
.calc-presets {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
}
.calc-preset {
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 0;
  font-family: var(--sans);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-2);
  cursor: pointer;
  letter-spacing: .02em;
  transition: all .12s;
}
.calc-preset:hover { color: var(--text); border-color: var(--border-hi); }
.calc-preset.on {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
  box-shadow: 0 0 calc(var(--glow-on) * 8px) var(--accent-glow);
}

/* ── Filas de proyección ── */
.calc-projection-rows {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 6px;
  border-top: 1px dashed var(--border);
}
.calc-pr-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 12px;
  color: var(--text-2);
}
.calc-pr-row:last-child { border-bottom: none; }
.calc-pr-val {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.calc-pr-val.up { color: var(--accent); text-shadow: 0 0 calc(var(--glow-on) * 8px) var(--accent-glow); }
.calc-pr-val.dn { color: var(--neg); }