/* ============================================================
   TAXWISE GST/VAT CALCULATOR — Plugin stylesheet
   - Fully scoped under .gstcalc-root (no theme/plugin collisions)
   - Safe to render multiple instances on the same page
   - Responsive down to 380px, no overlapping elements at any width
   ============================================================ */

.gstcalc-root,
.gstcalc-root *,
.gstcalc-root *::before,
.gstcalc-root *::after {
  box-sizing: border-box !important;
}

.gstcalc-root {
  max-width: 880px;
  margin: 2rem auto;
  padding: 0 1rem;
  font-family: inherit;
  line-height: normal;
  font-size: 18px;
  position: relative;
  z-index: 0;
  isolation: isolate;
}

.gstcalc-root select,
.gstcalc-root input,
.gstcalc-root button {
  font-family: inherit !important;
}
.gstcalc-root p,
.gstcalc-root span,
.gstcalc-root div {
  margin: 0;
}

.gstcalc-root .gstcalc-inner {
  background: var(--wp--preset--color--background, #ffffff);
  border-radius: 40px;
  padding: 2.6rem 2.6rem 2.2rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--wp--preset--color--border, #edf2f7);
  transition: all 0.25s ease;
  overflow: hidden;
}

/* ----- HEADER ----- */
.gstcalc-root .gstcalc-header {
  text-align: center;
  margin-bottom: 2.2rem;
  padding-bottom: 1.2rem;
  border-bottom: 2px solid var(--wp--preset--color--border, #edf2f7);
  position: relative;
}
.gstcalc-root .gstcalc-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, #0f172a, #3b82f6);
  border-radius: 4px;
}
.gstcalc-root .gstcalc-header .gstcalc-title {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--wp--preset--color--heading, #0f172a);
  margin: 0 0 0.4rem 0;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  line-height: 1.2;
}
.gstcalc-root .gstcalc-header .gstcalc-badge {
  font-size: 0.85rem;
  font-weight: 600;
  background: linear-gradient(135deg, #0f172a, #3b82f6);
  color: #fff;
  padding: 0.3rem 1.6rem;
  border-radius: 40px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
  white-space: nowrap;
}
.gstcalc-root .gstcalc-header .gstcalc-tagline {
  font-size: 1.15rem;
  color: var(--wp--preset--color--text-muted, #475569);
  margin: 0.4rem 0 0.6rem 0;
  font-weight: 400;
  letter-spacing: 0.01em;
}
.gstcalc-root .gstcalc-header .gstcalc-flag-big {
  display: inline-block;
  font-size: 2.8rem;
  line-height: 1;
  background: var(--wp--preset--color--background-light, #f8fafc);
  padding: 0.2rem 1.8rem;
  border-radius: 60px;
  border: 1px solid var(--wp--preset--color--border, #e2e8f0);
  margin-top: 0.4rem;
}

/* ----- COUNTRY SELECT ----- */
.gstcalc-root .gstcalc-country-wrap {
  margin-bottom: 1.8rem;
}
.gstcalc-root .gstcalc-country-wrap label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--wp--preset--color--text-muted, #475569);
  margin-bottom: 0.5rem;
}

.gstcalc-root .gstcalc-select-wrapper {
  position: relative !important;
  width: 100% !important;
  display: block !important;
}
.gstcalc-root .gstcalc-select-wrapper select.gstcalc-select {
  display: block !important;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important;
  height: auto !important;
  padding: 1.1rem 4rem 1.1rem 1.8rem !important;
  border: 2px solid var(--wp--preset--color--border, #e2e8f0) !important;
  border-radius: 24px !important;
  font-size: 1.2rem !important;
  font-family: inherit !important;
  font-weight: 500 !important;
  line-height: 1.4 !important;
  background-color: var(--wp--preset--color--background, #ffffff) !important;
  background-image: none !important;
  color: var(--wp--preset--color--text, #0f172a) !important;
  transition: 0.25s ease;
  appearance: none !important;
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
  text-overflow: ellipsis !important;
  overflow: hidden !important;
  white-space: nowrap !important;
  text-indent: 0 !important;
  direction: ltr !important;
}
.gstcalc-root .gstcalc-select-wrapper select.gstcalc-select option {
  padding: 0.6rem 1rem;
  font-size: 1.1rem;
  background: #fff;
  color: #0f172a;
  white-space: normal;
  overflow: visible;
  min-width: 100%;
}
.gstcalc-root .gstcalc-select-wrapper select.gstcalc-select:hover {
  border-color: #3b82f6 !important;
  box-shadow: 0 2px 16px rgba(59, 130, 246, 0.1);
}
.gstcalc-root .gstcalc-select-wrapper select.gstcalc-select:focus {
  outline: none !important;
  border-color: #3b82f6 !important;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}
.gstcalc-root .gstcalc-select-wrapper::after {
  content: "▾";
  position: absolute;
  right: 1.6rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--wp--preset--color--text-muted, #94a3b8);
  pointer-events: none;
  transition: 0.2s;
  z-index: 2;
}
.gstcalc-root .gstcalc-select-wrapper:hover::after {
  color: #3b82f6;
}

/* ----- INPUT ROW ----- */
.gstcalc-root .gstcalc-input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  margin-bottom: 1.4rem;
}
.gstcalc-root .gstcalc-field {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.gstcalc-root .gstcalc-field label {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--wp--preset--color--text-muted, #475569);
  margin-bottom: 0.5rem;
}
.gstcalc-root .gstcalc-field input {
  width: 100% !important;
  min-width: 0 !important;
  padding: 1rem 1.4rem !important;
  border: 2px solid var(--wp--preset--color--border, #e2e8f0) !important;
  border-radius: 24px !important;
  font-size: 1.2rem !important;
  font-family: inherit !important;
  font-weight: 500;
  background: var(--wp--preset--color--background, #ffffff) !important;
  color: var(--wp--preset--color--text, #0f172a) !important;
  transition: 0.25s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}
.gstcalc-root .gstcalc-field input:focus {
  outline: none !important;
  border-color: #3b82f6 !important;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}
.gstcalc-root .gstcalc-field input[type="number"] {
  -moz-appearance: textfield;
}
.gstcalc-root .gstcalc-field input[type="number"]::-webkit-inner-spin-button,
.gstcalc-root .gstcalc-field input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.gstcalc-root .gstcalc-rate-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}
.gstcalc-root .gstcalc-rate-wrap input {
  flex: 1;
  min-width: 0;
}
.gstcalc-root .gstcalc-percent-badge {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--wp--preset--color--text, #0f172a);
  min-width: 40px;
  text-align: center;
  flex-shrink: 0;
}

/* ----- TAX PILL ----- */
.gstcalc-root .gstcalc-tax-display {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  border-radius: 60px;
  padding: 1rem 2rem;
  margin: 1.2rem 0 1.4rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1rem;
  border: 2px solid var(--wp--preset--color--border, #e2e8f0);
}
.gstcalc-root .gstcalc-tax-display .gstcalc-tax-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--wp--preset--color--text-muted, #475569);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.gstcalc-root .gstcalc-tax-display .gstcalc-tax-value {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #0f172a, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gstcalc-root .gstcalc-tax-display .gstcalc-tax-country {
  font-size: 1rem;
  font-weight: 500;
  color: var(--wp--preset--color--text-muted, #64748b);
  background: var(--wp--preset--color--background, #ffffff);
  padding: 0.3rem 1.6rem;
  border-radius: 40px;
  border: 1px solid var(--wp--preset--color--border, #e2e8f0);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ----- MODE TOGGLE ----- */
.gstcalc-root .gstcalc-mode-toggle {
  display: flex;
  gap: 0.4rem;
  background: var(--wp--preset--color--background-light, #f1f5f9);
  border-radius: 60px;
  padding: 0.4rem;
  margin: 0.8rem 0 1.6rem 0;
  border: 2px solid var(--wp--preset--color--border, #e2e8f0);
}
.gstcalc-root .gstcalc-mode-btn {
  flex: 1;
  padding: 0.8rem 1rem !important;
  border: none !important;
  border-radius: 60px !important;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: 0.25s ease;
  background: transparent;
  color: var(--wp--preset--color--text-muted, #64748b);
}
.gstcalc-root .gstcalc-mode-btn.active {
  background: linear-gradient(135deg, #0f172a, #3b82f6) !important;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}
.gstcalc-root .gstcalc-mode-btn:hover:not(.active) {
  background: var(--wp--preset--color--border, #e2e8f0);
}

/* ----- RESULTS GRID ----- */
.gstcalc-root .gstcalc-results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin: 1.6rem 0 1.8rem 0;
}
.gstcalc-root .gstcalc-result-card {
  background: var(--wp--preset--color--background-light, #f8fafc);
  border-radius: 28px;
  padding: 1.4rem 0.6rem;
  text-align: center;
  border: 2px solid var(--wp--preset--color--border, #edf2f7);
  transition: 0.25s ease;
  position: relative;
  overflow: hidden;
  min-width: 0;
}
.gstcalc-root .gstcalc-result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #0f172a, #3b82f6, #60a5fa);
  opacity: 0;
  transition: 0.3s;
}
.gstcalc-root .gstcalc-result-card:hover::before {
  opacity: 1;
}
.gstcalc-root .gstcalc-result-card:hover {
  border-color: #3b82f6;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.08);
}
.gstcalc-root .gstcalc-result-card .gstcalc-rc-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--wp--preset--color--text-muted, #94a3b8);
  display: block;
  font-weight: 600;
}
.gstcalc-root .gstcalc-result-card .gstcalc-rc-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--wp--preset--color--text, #0f172a);
  margin-top: 0.3rem;
  word-break: break-word;
  display: block;
}
.gstcalc-root .gstcalc-result-card .gstcalc-rc-value.highlight {
  background: linear-gradient(135deg, #0f172a, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.7rem;
}

/* ----- BUTTONS ----- */
.gstcalc-root .gstcalc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 0.4rem;
}
.gstcalc-root .gstcalc-actions button {
  flex: 1;
  min-width: 120px;
  padding: 1rem 1.6rem !important;
  border: none !important;
  border-radius: 60px !important;
  font-size: 1.1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: 0.25s ease;
  text-align: center;
}
.gstcalc-root .gstcalc-btn-calc {
  background: linear-gradient(135deg, #0f172a, #2563eb) !important;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}
.gstcalc-root .gstcalc-btn-calc:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 28px rgba(37, 99, 235, 0.4);
}
.gstcalc-root .gstcalc-btn-calc:active {
  transform: scale(0.96);
}
.gstcalc-root .gstcalc-btn-sample {
  background: var(--wp--preset--color--background-light, #f1f5f9) !important;
  color: var(--wp--preset--color--text, #0f172a) !important;
  border: 2px solid var(--wp--preset--color--border, #e2e8f0) !important;
}
.gstcalc-root .gstcalc-btn-sample:hover {
  background: #e2e8f0 !important;
  transform: translateY(-3px);
}
.gstcalc-root .gstcalc-btn-reset {
  background: transparent !important;
  color: var(--wp--preset--color--text-muted, #94a3b8) !important;
  border: 2px solid var(--wp--preset--color--border, #e2e8f0) !important;
}
.gstcalc-root .gstcalc-btn-reset:hover {
  background: #f1f5f9 !important;
  transform: translateY(-3px);
  color: #0f172a !important;
}

/* ----- COUNTRY TAGS ----- */
.gstcalc-root .gstcalc-countries-badge {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.6rem;
  padding-top: 1.6rem;
  border-top: 2px solid var(--wp--preset--color--border, #edf2f7);
}
.gstcalc-root .gstcalc-countries-badge .gstcalc-country-tag {
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--wp--preset--color--background-light, #f8fafc);
  padding: 0.3rem 1.2rem;
  border-radius: 30px;
  color: var(--wp--preset--color--text-muted, #64748b);
  border: 1px solid var(--wp--preset--color--border, #e2e8f0);
  white-space: nowrap;
  transition: 0.2s;
}
.gstcalc-root .gstcalc-countries-badge .gstcalc-country-tag:hover {
  border-color: #3b82f6;
  color: #3b82f6;
  background: #eff6ff;
  transform: translateY(-2px);
}

.gstcalc-root .gstcalc-footnote {
  margin-top: 2.2rem;
  font-size: 0.95rem;
  color: var(--wp--preset--color--text-muted, #94a3b8);
  text-align: center;
  border-top: 2px solid var(--wp--preset--color--border, #edf2f7);
  padding-top: 1.4rem;
  letter-spacing: 0.02em;
}
.gstcalc-root .gstcalc-footnote span {
  color: #3b82f6;
  font-weight: 600;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 820px) {
  .gstcalc-root .gstcalc-inner { padding: 2rem; }
  .gstcalc-root .gstcalc-header .gstcalc-title { font-size: 2.2rem; }
  .gstcalc-root .gstcalc-header .gstcalc-tagline { font-size: 1rem; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value { font-size: 1.3rem; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value.highlight { font-size: 1.5rem; }
}

@media (max-width: 680px) {
  .gstcalc-root { font-size: 16px; }
  .gstcalc-root .gstcalc-inner { padding: 1.6rem; border-radius: 32px; }
  .gstcalc-root .gstcalc-header .gstcalc-title { font-size: 1.9rem; }
  .gstcalc-root .gstcalc-header .gstcalc-tagline { font-size: 0.95rem; }
  .gstcalc-root .gstcalc-header .gstcalc-flag-big { font-size: 2.4rem; padding: 0.1rem 1.4rem; }
  .gstcalc-root .gstcalc-header::after { width: 80px; height: 3px; }
  .gstcalc-root .gstcalc-input-row { grid-template-columns: 1fr; gap: 0.8rem; }
  .gstcalc-root .gstcalc-field input { font-size: 1.1rem !important; padding: 0.9rem 1.2rem !important; }
  .gstcalc-root .gstcalc-select-wrapper select.gstcalc-select { font-size: 1.1rem !important; padding: 0.9rem 3.6rem 0.9rem 1.4rem !important; }
  .gstcalc-root .gstcalc-results-grid { grid-template-columns: 1fr 1fr; gap: 0.8rem; }
  .gstcalc-root .gstcalc-results-grid .gstcalc-result-card:last-child { grid-column: span 2; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value { font-size: 1.2rem; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value.highlight { font-size: 1.3rem; }
  .gstcalc-root .gstcalc-actions { flex-direction: column; }
  .gstcalc-root .gstcalc-actions button { min-width: unset; padding: 0.8rem 1.2rem !important; font-size: 1rem; }
  .gstcalc-root .gstcalc-tax-display .gstcalc-tax-value { font-size: 1.6rem; }
  .gstcalc-root .gstcalc-tax-display .gstcalc-tax-country { font-size: 0.9rem; padding: 0.2rem 1rem; }
  .gstcalc-root .gstcalc-mode-btn { font-size: 0.95rem; padding: 0.6rem 0.7rem !important; }
  .gstcalc-root .gstcalc-countries-badge .gstcalc-country-tag { font-size: 0.75rem; padding: 0.2rem 0.8rem; }
  .gstcalc-root .gstcalc-percent-badge { font-size: 1.3rem; min-width: 34px; }
}

@media (max-width: 480px) {
  .gstcalc-root .gstcalc-inner { padding: 1.2rem; border-radius: 24px; }
  .gstcalc-root .gstcalc-header .gstcalc-title { font-size: 1.6rem; }
  .gstcalc-root .gstcalc-header .gstcalc-tagline { font-size: 0.85rem; }
  .gstcalc-root .gstcalc-header .gstcalc-badge { font-size: 0.7rem; padding: 0.2rem 1rem; }
  .gstcalc-root .gstcalc-header .gstcalc-flag-big { font-size: 2rem; padding: 0.1rem 1rem; }
  .gstcalc-root .gstcalc-results-grid { grid-template-columns: 1fr; gap: 0.6rem; }
  .gstcalc-root .gstcalc-results-grid .gstcalc-result-card:last-child { grid-column: span 1; }
  .gstcalc-root .gstcalc-result-card { padding: 1rem 0.4rem; border-radius: 20px; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value { font-size: 1.1rem; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value.highlight { font-size: 1.2rem; }
  .gstcalc-root .gstcalc-field input { font-size: 1rem !important; padding: 0.7rem 1rem !important; border-radius: 20px !important; }
  .gstcalc-root .gstcalc-select-wrapper select.gstcalc-select { font-size: 1rem !important; padding: 0.7rem 3rem 0.7rem 1rem !important; border-radius: 20px !important; }
  .gstcalc-root .gstcalc-select-wrapper::after { font-size: 1.3rem; right: 1.2rem; }
  .gstcalc-root .gstcalc-tax-display { padding: 0.6rem 1.2rem; border-radius: 40px; }
  .gstcalc-root .gstcalc-tax-display .gstcalc-tax-value { font-size: 1.3rem; }
  .gstcalc-root .gstcalc-tax-display .gstcalc-tax-label { font-size: 0.85rem; }
  .gstcalc-root .gstcalc-tax-display .gstcalc-tax-country { font-size: 0.8rem; padding: 0.15rem 0.8rem; }
  .gstcalc-root .gstcalc-mode-btn { font-size: 0.85rem; padding: 0.5rem 0.5rem !important; }
  .gstcalc-root .gstcalc-actions button { font-size: 0.9rem; padding: 0.7rem 1rem !important; }
  .gstcalc-root .gstcalc-countries-badge .gstcalc-country-tag { font-size: 0.65rem; padding: 0.15rem 0.6rem; }
  .gstcalc-root .gstcalc-footnote { font-size: 0.8rem; }
  .gstcalc-root .gstcalc-percent-badge { font-size: 1.1rem; min-width: 30px; }
}

@media (max-width: 380px) {
  .gstcalc-root .gstcalc-header .gstcalc-title { font-size: 1.3rem; }
  .gstcalc-root .gstcalc-header .gstcalc-tagline { font-size: 0.75rem; }
  .gstcalc-root .gstcalc-inner { padding: 0.8rem; }
  .gstcalc-root .gstcalc-field input { font-size: 0.9rem !important; padding: 0.6rem 0.8rem !important; }
  .gstcalc-root .gstcalc-select-wrapper select.gstcalc-select { font-size: 0.9rem !important; padding: 0.6rem 2.6rem 0.6rem 0.8rem !important; }
  .gstcalc-root .gstcalc-result-card .gstcalc-rc-value { font-size: 1rem; }
}