/* ============================================================
   DCA Calculator — page-scoped styles
   Warm parchment theme, SVG line chart hero.
   ============================================================ */

/* ---- Page-level background ---- */

.dca-calculator-page {
  background: #f5f2ec;
  color: #1a1a18;
}

.dca-calculator-page .site-header {
  background: #f5f2ec;
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
}

.dca-calculator-page .site-brand {
  color: #1a1a18;
}

.dca-calculator-page .site-footer {
  background: #eeebe3;
  border-top: 1px solid rgba(0, 0, 0, 0.07);
  color: #5a5a52;
}

.dca-calculator-page .footer-title {
  color: #1a1a18;
}

.dca-calculator-page .site-nav a,
.dca-calculator-page .footer-copy {
  color: #6b6b62;
}

.dca-calculator-page .tool-frame {
  position: relative;
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
  overflow: visible;
}

.dca-calculator-page .tool-header-block,
.dca-calculator-page .tool-shell,
.dca-calculator-page .tool-notes {
  position: relative;
  z-index: 1;
}

/* Strip the shared tool-shell chrome — DCA panels define the visual frame */
.dca-calculator-page .tool-shell {
  padding: 0;
  border: none;
  background: transparent;
  box-shadow: none;
}

/* Suppress generic card hover-lift on notes */
.dca-calculator-page .tool-notes.card {
  transition: none;
}

.dca-calculator-page .tool-notes.card:hover,
.dca-calculator-page .tool-notes.card:focus-within {
  transform: none;
  border-color: rgba(13, 115, 119, 0.22);
  box-shadow: none;
}

.dca-calculator-page .tool-header-block {
  max-width: none;
  padding-inline: 0.56rem;
}

/* ---- Header ---- */

.dca-header {
  display: grid;
  gap: 8px;
  padding: 2px 0 0;
}

.dca-header__topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.dca-header__copy {
  display: grid;
  gap: 8px;
  max-width: none;
}

.dca-header__eyebrow {
  margin: 0;
  color: #0d7377;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 11px;
  font-weight: 700;
}

.dca-calculator-page .page-title {
  margin: 0;
  font-family: "Segoe UI Variable Display", "Aptos Display", "Segoe UI", sans-serif;
  font-size: clamp(2.6rem, 4.2vw, 3.8rem);
  line-height: 0.93;
  letter-spacing: -0.06em;
  text-wrap: balance;
  color: #0f1a12;
}

.dca-calculator-page .page-subtitle {
  margin: 0;
  color: #5a6b58;
  font-size: 1.02rem;
  line-height: 1.22;
  max-width: 42rem;
}

/* ---- Language toggle ---- */

.dca-language-toggle {
  display: inline-flex;
  gap: 5px;
  padding: 4px;
  border: 1px solid rgba(13, 115, 119, 0.22);
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
  flex-shrink: 0;
}

.dca-language-button {
  min-width: 46px;
  min-height: 32px;
  padding: 5px 11px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: #4a4a42;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.dca-language-button.is-active {
  color: #fff;
  border-color: transparent;
  background: #0d7377;
  box-shadow: 0 2px 8px rgba(13, 115, 119, 0.3);
}

/* ---- Workbench layout ---- */

.dca-ui {
  display: grid;
}

.dca-workbench {
  display: grid;
  gap: 14px;
}

.dca-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) minmax(480px, 1.22fr);
  gap: 20px;
  align-items: start;
}

/* ---- Panels ---- */

.dca-panel {
  display: grid;
  /* Force the implicit grid track to allow shrinking below content. Without
     this, the chart's intrinsic min-content (axis labels like "1.2M" + the
     full year ladder) inflates the result panel's auto column past the
     parent panel's content box, producing a ~7px right-edge overflow at
     mobile 375. min-width:0 alone fixes flex children, not grid tracks. */
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: 16px;
  min-width: 0;
  padding: 20px 20px 18px;
  border-radius: 24px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #ffffff;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.05),
    0 8px 24px rgba(0, 0, 0, 0.06);
}

.dca-panel--inputs {
  background: #ffffff;
}

.dca-panel--result {
  background: #fdfaf6;
}

.dca-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
}

.dca-panel__eyebrow {
  margin: 0;
  color: #0d7377;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 11px;
  font-weight: 700;
}

.dca-panel__title {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.15;
  color: #1a1a18;
}

/* ---- Form inputs ---- */

.dca-form {
  display: grid;
  gap: 12px;
}

.dca-field {
  display: grid;
  gap: 6px;
}

.dca-field__label {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.15;
  color: #3d3d38;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.dca-input-wrap {
  position: relative;
}

.dca-input {
  min-height: 52px;
  padding-block: 12px;
  font-size: 18px;
  font-weight: 600;
  border-radius: 14px;
  background: #f9f7f3;
  border: 1.5px solid rgba(0, 0, 0, 0.1);
  color: #1a1a18;
  width: 100%;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.dca-input::placeholder {
  color: #b0a898;
}

.dca-input:focus {
  border-color: #0d7377;
  box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.12);
  outline: none;
  background: #fff;
}

.dca-input-suffix {
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  color: #8a8a7e;
  font-size: 13px;
  font-weight: 700;
  pointer-events: none;
}

.dca-input-wrap--suffix .dca-input {
  padding-right: 42px;
}

/* ---- Cadence chips ---- */

.dca-cadence-rail {
  display: inline-flex;
  gap: 5px;
  padding: 4px;
  border: 1.5px solid rgba(0, 0, 0, 0.1);
  border-radius: 999px;
  background: #f9f7f3;
  width: max-content;
  max-width: 100%;
}

.dca-cadence-chip {
  border: 1.5px solid transparent;
  border-radius: 999px;
  min-height: 36px;
  padding: 8px 15px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  color: #5a5a52;
  background: transparent;
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease, transform 100ms ease;
  white-space: nowrap;
}

.dca-cadence-chip:hover,
.dca-cadence-chip:focus-visible {
  transform: translateY(-1px);
  color: #0d7377;
  background: rgba(13, 115, 119, 0.07);
}

.dca-cadence-chip.is-active {
  color: #fff;
  border-color: transparent;
  background: #0d7377;
  box-shadow: 0 2px 10px rgba(13, 115, 119, 0.28);
}

/* ---- Error hint ---- */

.dca-error-hint {
  margin: 0;
  color: #c0392b;
  font-size: 13px;
  line-height: 1.38;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(192, 57, 43, 0.2);
  background: rgba(192, 57, 43, 0.05);
}

/* ---- Scenario B ---- */

.dca-scenario-b-toggle {
  display: flex;
}

.dca-scenario-b-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1.5px dashed rgba(13, 115, 119, 0.3);
  border-radius: 12px;
  background: transparent;
  color: #6b6b62;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
  width: 100%;
  justify-content: center;
}

.dca-scenario-b-button:hover,
.dca-scenario-b-button:focus-visible {
  color: #0d7377;
  border-color: rgba(13, 115, 119, 0.5);
  background: rgba(13, 115, 119, 0.05);
}

.dca-scenario-b-button.is-open {
  border-style: solid;
  border-color: #0d7377;
  color: #0d7377;
  background: rgba(13, 115, 119, 0.05);
}

.dca-scenario-b-button__icon {
  font-size: 16px;
  line-height: 1;
  transition: transform 200ms ease;
}

.dca-scenario-b-button.is-open .dca-scenario-b-button__icon {
  transform: rotate(45deg);
}

.dca-scenario-b-panel {
  display: grid;
  gap: 10px;
}

.dca-scenario-b-panel.is-hidden {
  display: none;
}

/* ---- Disclaimer ---- */

.dca-disclaimer {
  margin: 0;
  color: #9a9a8e;
  font-size: 12px;
  line-height: 1.52;
  padding-top: 6px;
  border-top: 1px solid rgba(0, 0, 0, 0.07);
}

/* ---- Headlines ---- */

.dca-headlines {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.dca-headline {
  display: grid;
  gap: 5px;
  padding: 12px 13px;
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.07);
  background: #f9f7f3;
}

.dca-headline--main {
  grid-column: 1 / -1;
  border-color: rgba(13, 115, 119, 0.2);
  background: linear-gradient(135deg, rgba(13, 115, 119, 0.04), rgba(13, 115, 119, 0.01));
}

.dca-headline__label {
  margin: 0;
  color: #7a7a70;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dca-headline__value {
  margin: 0;
  font-family: "Segoe UI Variable Display", "Aptos Display", "Segoe UI", sans-serif;
  font-size: clamp(1.45rem, 2.8vw, 2rem);
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: #1a1a18;
}

.dca-headline--main .dca-headline__value {
  font-size: clamp(2.4rem, 4.2vw, 3.4rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
  color: #0a1a12;
}

.dca-headline__sub {
  margin: 0;
  color: #0d7377;
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ---- Crossover callout ---- */

.dca-crossover-callout {
  display: flex;
  align-items: center;
  justify-content: center;
}

.dca-crossover-callout.is-hidden {
  display: none;
}

.dca-crossover-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1.5px solid rgba(13, 115, 119, 0.3);
  background: rgba(13, 115, 119, 0.08);
  color: #0d7377;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

/* ---- Chart section ---- */

.dca-chart-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.dca-chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.dca-chart-title {
  margin: 0;
  color: #7a7a70;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ---- Chart legend ---- */

.dca-chart-legend {
  display: flex;
  gap: 14px;
  align-items: center;
}

.dca-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #6b6b62;
  font-weight: 600;
}

.dca-legend-item::before {
  content: "";
  display: block;
  width: 20px;
  height: 3px;
  border-radius: 2px;
}

.dca-legend-item--invested::before {
  background: #a8c4cc;
}

.dca-legend-item--gain::before {
  background: #0d7377;
}

.dca-legend-item--b::before {
  background: #7c5cbf;
}

.dca-legend-item.is-hidden {
  display: none;
}

/* ---- Line chart container ---- */

.dca-line-chart {
  border-radius: 18px;
  border: 1px solid rgba(0, 0, 0, 0.07);
  background: #fdfaf6;
  overflow: hidden;
  /* height driven by SVG viewBox */
}

.dca-line-chart svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---- Scenario B delta ---- */

.dca-scenario-b-strip-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 4px;
}

.dca-scenario-b-strip-wrap.is-hidden {
  display: none;
}

.dca-strip-b-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
}

.dca-strip-title {
  margin: 0;
  color: #7a7a70;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.dca-strip-title--b {
  color: #7c5cbf;
}

.dca-scenario-b-delta {
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ---- Notes card ---- */

.dca-notes {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px 24px;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.07);
  border-radius: 20px;
}

.dca-notes .card-title {
  grid-column: 1 / -1;
  color: #1a1a18;
}

.dca-notes .card-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.68;
  color: #4a4a42;
}

/* ---- Morph animation ---- */

@keyframes dca-morph {
  0% { opacity: 0.4; transform: translateY(4px); }
  100% { opacity: 1; transform: translateY(0); }
}

.dca-morph {
  animation: dca-morph 100ms ease forwards;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1040px) {
  .dca-layout {
    grid-template-columns: minmax(300px, 0.88fr) minmax(0, 1.12fr);
  }
}

@media (max-width: 900px) {
  .dca-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .dca-panel {
    padding: 16px;
  }

  .dca-headlines {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .dca-notes {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .dca-header__topbar {
    display: grid;
    gap: 10px;
  }

  .dca-language-toggle {
    justify-self: start;
  }

  .dca-calculator-page .page-title {
    font-size: clamp(2rem, 8vw, 2.8rem);
  }

  .dca-calculator-page .page-subtitle {
    font-size: 15px;
  }

  .dca-headlines {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .dca-headline--main {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .dca-calculator-page .section-tool-page {
    padding-block: 10px 16px;
  }

  .dca-calculator-page .tool-header-block {
    margin-bottom: 2px;
  }

  .dca-header__copy {
    gap: 5px;
  }

  .dca-language-toggle {
    padding: 4px;
  }

  .dca-language-button {
    min-width: 40px;
    min-height: 30px;
    font-size: 12px;
  }

  .dca-header__eyebrow {
    font-size: 10px;
  }

  .dca-calculator-page .page-title {
    font-size: 1.8rem;
    line-height: 0.96;
  }

  .dca-calculator-page .page-subtitle {
    font-size: 14px;
    line-height: 1.2;
  }

  .dca-calculator-page .tool-shell {
    padding: 10px;
  }

  .dca-panel {
    gap: 12px;
    padding: 13px;
    border-radius: 20px;
  }

  .dca-input {
    min-height: 48px;
    font-size: 17px;
  }

  .dca-headlines {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .dca-headline {
    padding: 10px 10px;
  }

  .dca-headline--main .dca-headline__value {
    font-size: 2rem;
  }

  .dca-headline__value {
    font-size: 1.25rem;
  }

  .dca-cadence-rail {
    padding: 3px;
    gap: 3px;
  }

  .dca-cadence-chip {
    padding: 6px 11px;
    font-size: 12px;
  }
}