.tca-calculator,
.tca-calculator * {
  box-sizing: border-box;
}

.tca-calculator {
  --tca-bg: #f7f8fb;
  --tca-panel: #ffffff;
  --tca-text: #111827;
  --tca-muted: #657083;
  --tca-border: #d9dee7;
  --tca-strong-border: #1f2937;
  --tca-soft: #eef2f7;
  --tca-primary: #2f4f6f;
  --tca-primary-hover: #243f59;
  --tca-focus: #1f6feb;
  --tca-danger: #9f1d1d;
  --tca-success: #136c3b;
  width: 100%;
  max-width: 920px;
  min-width: 0;
  margin: 0 auto;
  padding: clamp(14px, 4vw, 28px);
  color: var(--tca-text);
  background: var(--tca-bg);
  border-radius: 18px;
  overflow-wrap: anywhere;
}

.tca-calculator.tca-dark {
  --tca-bg: #101827;
  --tca-panel: #172235;
  --tca-text: #eef4ff;
  --tca-muted: #b7c2d6;
  --tca-border: #344157;
  --tca-strong-border: #e5e7eb;
  --tca-soft: #223149;
  --tca-primary: #8fb7e8;
  --tca-primary-hover: #b5d3f4;
  --tca-focus: #9cc9ff;
  --tca-danger: #ffb4b4;
  --tca-success: #86efac;
}

.tca-header {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 18px;
}

.tca-kicker {
  margin: 0 0 6px;
  color: var(--tca-muted);
  font-size: clamp(0.78rem, 2.5vw, 0.92rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tca-header h2,
.tca-result h3 {
  margin: 0;
  font-size: clamp(1.45rem, 5vw, 2.2rem);
  line-height: 1.15;
  color: var(--tca-text);
}

.tca-header p {
  margin: 8px 0 0;
  color: var(--tca-muted);
  font-size: clamp(0.95rem, 3vw, 1.05rem);
  line-height: 1.55;
}

.tca-form {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: clamp(14px, 4vw, 22px);
  background: var(--tca-panel);
  border: 1px solid var(--tca-border);
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(16, 24, 40, 0.08);
}

.tca-field {
  min-width: 0;
}

.tca-field label,
.tca-checkbox-field label {
  display: block;
  margin-bottom: 7px;
  color: var(--tca-text);
  font-weight: 800;
}

.tca-field small {
  display: block;
  margin-top: 7px;
  color: var(--tca-muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.tca-form input[type="date"],
.tca-form input[type="text"],
.tca-form select {
  width: 100%;
  max-width: 100%;
  min-height: 48px;
  border: 1px solid var(--tca-border);
  border-radius: 14px;
  padding: 10px 12px;
  background: var(--tca-bg);
  color: var(--tca-text);
  font-size: 1rem;
  line-height: 1.2;
}

.tca-form input::placeholder {
  color: var(--tca-muted);
}

.tca-checkbox-field {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
}

.tca-checkbox-field input {
  width: 20px;
  height: 20px;
  accent-color: var(--tca-primary);
}

.tca-checkbox-field label {
  margin: 0;
}

.tca-advanced {
  width: 100%;
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--tca-border);
  border-radius: 16px;
  background: var(--tca-soft);
}

.tca-advanced summary {
  color: var(--tca-text);
  font-weight: 850;
  cursor: pointer;
}

.tca-advanced[open] {
  display: grid;
  gap: 14px;
}

.tca-error {
  padding: 12px 14px;
  border: 1px solid rgba(159, 29, 29, 0.35);
  border-radius: 14px;
  color: var(--tca-danger);
  background: rgba(159, 29, 29, 0.08);
  font-weight: 800;
}

.tca-actions,
.tca-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: 100%;
}

.tca-theme-toggle,
.tca-button {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--tca-border);
  border-radius: 14px;
  padding: 10px 14px;
  background: var(--tca-panel);
  color: var(--tca-text);
  font-weight: 800;
  font-size: 0.96rem;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.tca-button:hover,
.tca-theme-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(16, 24, 40, 0.12);
}

.tca-button:focus-visible,
.tca-theme-toggle:focus-visible,
.tca-form input:focus-visible,
.tca-form select:focus-visible,
.tca-advanced summary:focus-visible {
  outline: 3px solid var(--tca-focus);
  outline-offset: 2px;
}

.tca-primary {
  border-color: var(--tca-primary);
  background: var(--tca-primary);
  color: #ffffff;
}

.tca-dark .tca-primary {
  color: #101827;
}

.tca-primary:hover {
  background: var(--tca-primary-hover);
}

/* Flat report output: no boxed result panel, no sidebar, no cramped cards. */
.tca-result {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin-top: clamp(22px, 5vw, 34px);
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
}

.tca-result-rule {
  width: 100%;
  height: 3px;
  margin: 0 0 14px;
  background: var(--tca-strong-border);
}

.tca-result h3 {
  margin-bottom: 18px;
  font-size: clamp(1.35rem, 5vw, 1.9rem);
}

.tca-result-main,
.tca-report-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 16px 0;
  border-bottom: 1px solid var(--tca-border);
  background: transparent;
}

.tca-result-main {
  border-top: 1px solid var(--tca-border);
}

.tca-result-main span,
.tca-report-row span {
  color: var(--tca-muted);
  font-weight: 850;
  font-size: clamp(1rem, 4vw, 1.22rem);
  line-height: 1.3;
}

.tca-result-main strong,
.tca-report-row strong {
  color: var(--tca-text);
  font-weight: 900;
  font-size: clamp(1.08rem, 4.6vw, 1.35rem);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.tca-report-row strong.tca-good {
  color: var(--tca-success);
}

.tca-report-rows {
  display: block;
  width: 100%;
  min-width: 0;
}

.tca-report-heading {
  width: 100%;
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 3px solid var(--tca-strong-border);
  color: var(--tca-text);
  font-size: clamp(1.15rem, 4.5vw, 1.55rem);
  font-weight: 900;
  line-height: 1.2;
}

.tca-result-note,
.tca-status {
  width: 100%;
  margin-top: 16px;
  color: var(--tca-muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

.tca-result-actions {
  margin-top: 18px;
}

@media (min-width: 680px) {
  .tca-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .tca-theme-toggle,
  .tca-button {
    width: auto;
    white-space: nowrap;
  }

  .tca-result-main,
  .tca-report-row {
    grid-template-columns: minmax(210px, 0.55fr) minmax(0, 1fr);
    align-items: start;
    column-gap: 22px;
  }

  .tca-result-main strong,
  .tca-report-row strong {
    text-align: right;
  }
}

@media print {
  body * {
    visibility: hidden !important;
  }

  .tca-calculator,
  .tca-calculator * {
    visibility: visible !important;
  }

  .tca-calculator {
    position: absolute;
    left: 0;
    top: 0;
    box-shadow: none;
    border: 0;
    background: #ffffff;
    color: #000000;
  }

  .tca-form,
  .tca-theme-toggle,
  .tca-actions,
  .tca-result-actions,
  .tca-status {
    display: none !important;
  }
}