/* ══════════════════════════════════════
   Calculators  (ca-*)
══════════════════════════════════════ */

.ca-content {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 16px 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ── Accordion card ── */
.ca-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color 0.15s;
}
.ca-card-open { border-color: var(--accent); }

.ca-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}
.ca-header:hover { background: var(--surface2); }

.ca-header-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ca-title {
  font-size: var(--fs-12);
  font-weight: 600;
  color: var(--ink);
}

.ca-desc {
  font-size: var(--fs-12);
  color: var(--ink-mid);
}

.ca-chevron {
  font-size: var(--fs-18);
  color: var(--ink-mid);
  display: inline-block;
  transform: rotate(0deg);
  transition: transform 0.2s;
  line-height: 1;
  flex-shrink: 0;
}
.ca-card-open .ca-chevron { transform: rotate(90deg); }

/* ── Card body ── */
.ca-body {
  padding: 0 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-top: 1px solid var(--border);
}

/* ── Form fields ── */
.ca-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 14px;
}

.ca-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 120px;
}

.ca-chest-field {
  padding-top: 4px;
}

.ca-field-label {
  font-size: var(--fs-12);
  font-weight: 500;
  color: var(--ink-mid);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ca-input {
  height: 36px;
  padding: 0 10px;
  border-radius: var(--radius-md);
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s;
  width: 100%;
}
.ca-input:focus { border-color: var(--accent); }
.ca-input::placeholder { color: var(--ink-mid); opacity: 0.6; }

/* ── Gauge section (size finder) ── */
.ca-gauge-section {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 14px;
}

.ca-gauge-group {
  flex: 1;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ca-gauge-group-label {
  font-size: var(--fs-12);
  font-weight: 600;
  color: var(--ink-mid);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ca-gauge-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ca-gauge-input {
  width: 72px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface2);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  transition: border-color 0.15s;
}
.ca-gauge-input:focus { outline: none; border-color: var(--accent); }
.ca-gauge-input::placeholder { color: var(--ink-mid); opacity: 0.6; }

.ca-gauge-unit {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  white-space: nowrap;
}

/* ── Result box ── */
.ca-result {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ca-result-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ca-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 100px;
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.ca-badge-inc { background: var(--ok-lt); color: var(--ok); }
.ca-badge-dec { background: var(--danger-lt); color: var(--danger); }

.ca-range {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  font-variant-numeric: tabular-nums;
}

/* ── Instruction line ── */
.ca-instr {
  font-size: var(--fs-12);
  color: var(--ink);
  line-height: 1.6;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0;
}

.ca-grp { display: inline; }
.ca-ast { color: var(--accent); font-weight: 700; }
.ca-sep { color: var(--ink-mid); }
.ca-times { font-size: var(--fs-12); color: var(--ink-mid); }

/* ── Copy button ── */
.ca-copy-row { display: flex; justify-content: flex-end; }

.ca-copy-btn {
  height: 28px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--ink-mid);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.ca-copy-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── No-change / error ── */
.ca-none {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  font-style: italic;
}

.ca-error {
  font-size: var(--fs-12);
  color: var(--danger);
  background: var(--danger-lt);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  line-height: 1.5;
}

/* ── Size list ── */
.ca-size-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 4px;
}

.ca-size-label {
  display: block;
}

.ca-size-empty {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  font-style: italic;
  padding: 4px 0;
}

.ca-size-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.ca-size-item-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.ca-size-name {
  font-size: var(--fs-12);
  font-weight: 600;
  color: var(--ink);
}

.ca-size-meta {
  font-size: var(--fs-12);
  color: var(--ink-mid);
}

.ca-size-remove {
  width: 22px;
  height: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-mid);
  font-size: var(--fs-14);
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
}
.ca-size-remove:hover { border-color: var(--danger); color: var(--danger); }

/* ── Add-size row ── */
.ca-size-add-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

.ca-size-add-name {
  flex: 2;
  min-width: 90px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface2);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  transition: border-color 0.15s;
}
.ca-size-add-name:focus { outline: none; border-color: var(--accent); }
.ca-size-add-name::placeholder { color: var(--ink-mid); opacity: 0.6; }

.ca-size-add-num {
  flex: 1;
  min-width: 72px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface2);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  font-variant-numeric: tabular-nums;
  transition: border-color 0.15s;
}
.ca-size-add-num:focus { outline: none; border-color: var(--accent); }
.ca-size-add-num::placeholder { color: var(--ink-mid); opacity: 0.6; }

.ca-size-add-btn {
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.ca-size-add-btn:hover { background: var(--accent); color: var(--bg); }

/* ── Recommendation result ── */
.ca-rec {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ca-rec-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 100px;
  font-size: var(--fs-12);
  font-weight: 600;
  width: fit-content;
}
.ca-rec-ok   { background: var(--ok-lt);   color: var(--ok); }
.ca-rec-warn { background: var(--warn-lt);  color: var(--warn); }

.ca-rec-name {
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--ink);
}

.ca-rec-detail {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  line-height: 1.5;
}

.ca-rec-between-note {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  font-style: italic;
}

.ca-rec-alt-label {
  font-size: var(--fs-12);
  color: var(--ink-mid);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-top: 4px;
}

.ca-rec-nofit-note {
  font-size: var(--fs-12);
  color: var(--warn);
  font-style: italic;
}