/* ============================================================
   FinToolbox — Future Value Calculator
   Tool-specific styles. Shared bits (.card .fld .input .bk .btn
   .tag .sr-only) live in /css/styles.css.
   ============================================================ */

.future-value-tool [hidden] { display: none !important; }

/* ---------- Tab strip ---------- */
.fv-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
}
.fv-tab {
  appearance: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  border-radius: 6px 6px 0 0;
}
.fv-tab:hover { color: var(--text); background: var(--card-hi); }
.fv-tab.on { color: var(--text); border-bottom-color: var(--green); }
.fv-tab:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; }

.fv-panel { display: none; padding: 16px; }
.fv-panel.on { display: block; }
@media (max-width: 560px) { .fv-panel { padding: 12px; } }

/* ---------- Input grid ---------- */
.fv-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 14px;
}
@media (max-width: 900px) { .fv-form { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .fv-form { grid-template-columns: 1fr; } }

.fv-out h3 { margin: 0 0 10px; font-size: 14px; font-weight: 700; }
.fv-out .bk .v,
.fv-out .bk .tag { padding-right: 10px; }
.fv-out .bk { padding-right: 10px; }
.fv-out .bk .note {
  display: block;
  font-size: 11px;
  color: var(--text-3);
  margin-top: 2px;
  letter-spacing: 0;
  text-transform: none;
}

/* Inline hint shown next to the "Starting Amount" label in Tab B. */
.fv-hint {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--text-3);
  margin-left: 4px;
}

/* ---------- Affiliate disclaimer hard floor ---------- */
.future-value-tool .aff-disc,
.sticky-rail .aff-disc {
  font-size: 12px;
  color: var(--text-2);
}

/* ---------- Chart ---------- */
#fv-chart {
  width: 100%;
  display: block;
}
#fv-chart svg {
  width: 100%;
  height: auto;
  display: block;
}
.fv-chart-empty {
  padding: 24px;
  text-align: center;
  font-size: 12.5px;
  color: var(--text-3);
}

/* ---------- Disclaimer / warning ---------- */
.fv-disclaimer {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--yellow, #e0b85c) 7%, var(--card));
  border: 1px solid color-mix(in srgb, var(--yellow, #e0b85c) 25%, transparent);
  font-size: 12.5px;
  color: var(--text-2);
  line-height: 1.55;
}
.fv-disclaimer .icon {
  flex: 0 0 auto;
  font-size: 16px;
  line-height: 1;
}

/* ---------- Cross-link card pair ---------- */
.fv-cross {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}
@media (max-width: 720px) { .fv-cross { grid-template-columns: 1fr; } }
.fv-cross .card { padding: 14px 16px; }
.fv-cross h4 { margin: 0 0 4px; font-size: 13px; }
.fv-cross p { margin: 0 0 8px; font-size: 12.5px; color: var(--text-2); line-height: 1.55; }

/* ============================================================
   CSS-only tooltips (.ft-tip) — copied from tools/journal/journal.css.
   Used on Annual Return Rate + Compounding Frequency labels.
   Pattern: <span class="ft-tip" data-tip="…" tabindex="0">ⓘ</span>
   ============================================================ */
.ft-tip {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: -1px;
  margin-left: 4px;
  width: 14px; height: 14px;
  font-size: 11px;
  font-style: normal;
  font-weight: 400;
  color: var(--text-3);
  cursor: help;
  user-select: none;
}
.ft-tip:hover, .ft-tip:focus-visible {
  color: var(--text);
  outline: none;
}
.ft-tip::after {
  content: attr(data-tip);
  position: absolute;
  z-index: 120;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  width: max-content;
  max-width: 260px;
  min-width: 180px;
  padding: 8px 10px;
  background: var(--card-2);
  color: var(--text-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 11.5px;
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: 0;
  text-align: left;
  white-space: normal;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease-out, transform 120ms ease-out;
}
.ft-tip::before {
  content: '';
  position: absolute;
  z-index: 121;
  top: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  width: 0;
  height: 0;
  border: 6px solid transparent;
  border-bottom-color: var(--line);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease-out, transform 120ms ease-out;
}
.ft-tip:hover::after, .ft-tip:focus-visible::after,
.ft-tip:hover::before, .ft-tip:focus-visible::before {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.ft-tip--top::after {
  top: auto;
  bottom: calc(100% + 8px);
  transform: translateX(-50%) translateY(4px);
}
.ft-tip--top::before {
  top: auto;
  bottom: calc(100% + 2px);
  transform: translateX(-50%) translateY(4px);
  border-bottom-color: transparent;
  border-top-color: var(--line);
}
.ft-tip--top:hover::after, .ft-tip--top:focus-visible::after,
.ft-tip--top:hover::before, .ft-tip--top:focus-visible::before {
  transform: translateX(-50%) translateY(0);
}
.ft-tip--right::after { left: auto; right: -6px; transform: translateX(0) translateY(-4px); }
.ft-tip--right:hover::after, .ft-tip--right:focus-visible::after {
  transform: translateX(0) translateY(0);
}
.ft-tip--right::before { left: auto; right: 1px; transform: translateX(0) translateY(-4px); }
.ft-tip--right:hover::before, .ft-tip--right:focus-visible::before {
  transform: translateX(0) translateY(0);
}