/* ==========================================================================
   IRMAA Calculator — front end
   Colours / max-width / background image are set from Settings → IRMAA Calculator
   (they arrive as CSS variables via an inline <style> after this file).
   ========================================================================== */

.irmaa-calc {
  --irmaa-blue: #2980b9;
  --irmaa-ink: #222;
  --irmaa-muted: #9b9b9b;
  --irmaa-tint-1: #f6faff;
  --irmaa-tint-2: #eff6fd;
  --irmaa-tint-3: #eef4fd;
  --irmaa-inset: 11.5%;

  box-sizing: border-box;
  width: 100%;
  padding: clamp(14px, 4vw, 40px);
  font-family: 'Lato', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.4;
  color: var(--irmaa-ink);
  background-color: #6fa5bd;
  background-image: var(--irmaa-bg-image, linear-gradient(160deg, #a9cee0 0%, #6ea3bd 55%, #4d8aa8 100%));
  background-size: cover;
  background-position: center;
}

.irmaa-calc *,
.irmaa-calc *::before,
.irmaa-calc *::after {
  box-sizing: border-box;
}

/* ---- Card ---------------------------------------------------------------- */

.irmaa-calc .irmaa-card {
  max-width: 870px;
  margin: 0 auto;
  overflow: hidden;
  background: #fff;
  border: 10px solid var(--irmaa-blue);
  border-radius: 18px;
  box-shadow: 0 12px 32px rgba(20, 60, 90, 0.25);
}

.irmaa-calc .irmaa-sec {
  margin: 0;
  padding: 22px var(--irmaa-inset);
}

.irmaa-calc .irmaa-sec + .irmaa-sec {
  border-top: 1px solid var(--irmaa-blue);
}

.irmaa-calc .irmaa-sec--controls { padding: 0; background: #fff; }
.irmaa-calc .irmaa-sec--total    { background: var(--irmaa-tint-1); padding-top: 18px; padding-bottom: 18px; }
.irmaa-calc .irmaa-sec--b        { background: var(--irmaa-tint-2); padding-bottom: 30px; }
.irmaa-calc .irmaa-sec--d        { background: var(--irmaa-tint-3); padding-bottom: 34px; }

/* ---- Title + controls ---------------------------------------------------- */

.irmaa-calc .irmaa-head {
  padding: 26px 20px 4px;
  text-align: center;
}

.irmaa-calc .irmaa-title {
  margin: 0;
  padding: 0;
  font-family: inherit;
  font-size: clamp(1.7rem, 5.6vw, 3.1rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0;
  text-transform: none;
  color: var(--irmaa-blue);
}

.irmaa-calc .irmaa-controls {
  padding: 18px var(--irmaa-inset) 26px;
}

.irmaa-calc .irmaa-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin: 0 0 20px;
  padding: 0;
}

.irmaa-calc .irmaa-row:last-child { margin-bottom: 0; }
.irmaa-calc .irmaa-row--known     { margin-bottom: 22px; }

.irmaa-calc .irmaa-label {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--irmaa-ink);
}

.irmaa-calc .irmaa-radio {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.irmaa-calc .irmaa-radio input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: #0075ff;
  cursor: pointer;
}

.irmaa-calc .irmaa-select {
  width: 275px;
  max-width: 100%;
  height: auto;
  margin: 0;
  padding: 9px 10px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.3;
  color: var(--irmaa-ink);
  background-color: #fff;
  border: 1px solid #8fb0c6;
  border-radius: 4px;
  box-shadow: none;
}

.irmaa-calc .irmaa-select:focus {
  outline: none;
  border-color: var(--irmaa-blue);
  box-shadow: 0 0 0 3px var(--irmaa-focus, rgba(41, 128, 185, 0.3));
}

.irmaa-calc .irmaa-select:disabled {
  color: #7a7a7a;
  background-color: #f4f6f8;
  cursor: not-allowed;
}

/* ---- Value boxes --------------------------------------------------------- */

.irmaa-calc .irmaa-box {
  display: block;
  width: 100%;
  max-width: 124px;
  height: auto;
  margin: 0 auto;
  padding: 11px 6px;
  font-family: inherit;
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
  text-align: center;
  color: var(--irmaa-blue);
  background: #fff;
  border: 0;
  border-radius: 6px;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.18);
}

.irmaa-calc .irmaa-box.is-zero { color: var(--irmaa-muted); }

.irmaa-calc input.irmaa-box {
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.irmaa-calc input.irmaa-box::placeholder {
  color: var(--irmaa-muted);
  opacity: 1;
}

.irmaa-calc input.irmaa-box:focus {
  box-shadow: 0 0 0 3px var(--irmaa-focus, rgba(41, 128, 185, 0.3)), 0 1px 5px rgba(0, 0, 0, 0.18);
}

.irmaa-calc input.irmaa-box:disabled {
  opacity: 1;
  cursor: not-allowed;
  -webkit-text-fill-color: currentColor;
}

.irmaa-calc input.irmaa-box:disabled:placeholder-shown {
  -webkit-text-fill-color: var(--irmaa-muted);
}

/* ---- Total row ----------------------------------------------------------- */

.irmaa-calc .irmaa-total {
  display: grid;
  grid-template-columns: 65fr 35fr;
  align-items: center;
  gap: 12px;
}

.irmaa-calc .irmaa-total .irmaa-box { margin: 0; }

/* ---- Breakdown grids ----------------------------------------------------- */

.irmaa-calc .irmaa-h3 {
  margin: 0 0 12px;
  padding: 0;
  font-family: inherit;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0;
  text-transform: none;
  color: var(--irmaa-ink);
}

.irmaa-calc .irmaa-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 30px minmax(0, 1fr) 30px minmax(0, 1fr);
  grid-template-areas:
    "l1 .   l2 .   l3"
    "b1 op1 b2 op2 b3";
  row-gap: 8px;
  align-items: end;
}

.irmaa-calc .irmaa-grid--d {
  grid-template-areas:
    "l1 .   l2 .   l3"
    "b1 op1 b2 op2 b3"
    "n  n   n  n   n";
}

.irmaa-calc .irmaa-glabel {
  margin: 0;
  padding: 0 4px;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  text-align: center;
  color: #333;
}

.irmaa-calc .irmaa-l1  { grid-area: l1; }
.irmaa-calc .irmaa-l2  { grid-area: l2; }
.irmaa-calc .irmaa-l3  { grid-area: l3; }
.irmaa-calc .irmaa-b1  { grid-area: b1; }
.irmaa-calc .irmaa-b2  { grid-area: b2; }
.irmaa-calc .irmaa-b3  { grid-area: b3; }
.irmaa-calc .irmaa-op1 { grid-area: op1; }
.irmaa-calc .irmaa-op2 { grid-area: op2; }

.irmaa-calc .irmaa-op {
  align-self: center;
  justify-self: center;
  font-size: 1.15rem;
  line-height: 1;
  color: #444;
}

.irmaa-calc .irmaa-note {
  grid-area: n;
  justify-self: start;
  width: calc((100% - 60px) / 3);
  margin: 2px 0 0;
  padding: 0;
  font-size: 0.72rem;
  font-style: italic;
  line-height: 1.35;
  text-align: center;
  color: #333;
}

.irmaa-calc .irmaa-note.is-long {
  width: 100%;
  text-align: left;
}

/* ---- Utilities ----------------------------------------------------------- */

.irmaa-calc .irmaa-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Options driven from the settings page ------------------------------- */

.irmaa-calc.irmaa-calc--plain {
  padding: 0;
  background: none;
}

.irmaa-calc .irmaa-sub {
  margin: 8px 0 0;
  font-size: 0.95rem;
  color: #555;
}

.irmaa-calc .irmaa-sec--disclaimer {
  background: #fff;
  font-size: 0.8rem;
  line-height: 1.5;
  color: #555;
}

.irmaa-calc .irmaa-sec--disclaimer p { margin: 0 0 0.6em; }
.irmaa-calc .irmaa-sec--disclaimer p:last-child { margin-bottom: 0; }
.irmaa-calc .irmaa-sec--disclaimer a { color: var(--irmaa-blue); }

/* ---- Small screens ------------------------------------------------------- */

@media (max-width: 640px) {
  .irmaa-calc { --irmaa-inset: 6%; }

  .irmaa-calc .irmaa-card { border-width: 6px; border-radius: 14px; }

  .irmaa-calc .irmaa-total {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .irmaa-calc .irmaa-select { width: 100%; }

  .irmaa-calc .irmaa-grid,
  .irmaa-calc .irmaa-grid--d {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "l1"
      "b1"
      "n"
      "op1"
      "l2"
      "b2"
      "op2"
      "l3"
      "b3";
    row-gap: 6px;
  }

  .irmaa-calc .irmaa-grid:not(.irmaa-grid--d) {
    grid-template-areas:
      "l1"
      "b1"
      "op1"
      "l2"
      "b2"
      "op2"
      "l3"
      "b3";
  }

  .irmaa-calc .irmaa-box  { max-width: 220px; }
  .irmaa-calc .irmaa-op   { padding: 4px 0; }
  .irmaa-calc .irmaa-note { justify-self: center; width: 100%; }
  .irmaa-calc .irmaa-note.is-long { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .irmaa-calc * { transition: none !important; }
}