/* Style riêng cho VAT Tool - Đồng bộ với Theme hệ thống */
.vat-container {
  max-width: 800px; /* Nhỏ hơn TNCN 1 chút để tập trung form */
}

.vat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  margin-bottom: 30px;
}

.card-header {
  padding: 20px 30px;
  border-bottom: 1px solid var(--border);
}

.main-header {
  background: rgba(61, 142, 248, 0.05);
}

.card-header h2 {
  font-size: 18px;
  font-weight: 800;
  color: var(--blue);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-body {
  padding: 30px;
}

.input-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

.input-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.input-group input[type="text"],
.input-group select {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border2);
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  outline: none;
  transition: all 0.2s;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(61,142,248,0.2);
}

.mt-20 { margin-top: 20px; }

/* Radio Options like the image */
.radio-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.radio-card {
  display: block;
  cursor: pointer;
}

.radio-card input[type="radio"] {
  display: none;
}

.radio-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--border2);
  border-radius: 12px;
  background: var(--bg2);
  transition: all 0.2s;
}

.radio-icon {
  font-size: 18px;
}

.radio-text {
  font-size: 14px;
  color: var(--text2);
}

.radio-text b {
  color: var(--text);
}

.radio-card input[type="radio"]:checked + .radio-content {
  border-color: var(--blue);
  background: rgba(61, 142, 248, 0.05);
}

.radio-card input[type="radio"]:checked + .radio-content .radio-text {
  color: var(--blue);
}

/* Result Section */
.result-section {
  background: var(--bg2);
  border-top: 1px dashed var(--border2);
}

.result-header {
  padding: 15px 30px;
  background: var(--blue);
  color: #fff;
  text-align: center;
}

.result-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.result-body {
  padding: 30px;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.result-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text2);
}

.result-value-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.result-number {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}

.highlight-number {
  color: var(--blue);
  font-size: 24px;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.copy-btn:hover {
  color: var(--blue);
  background: rgba(61, 142, 248, 0.1);
}

.result-words {
  font-size: 12px;
  font-style: italic;
  color: var(--text3);
  text-align: right;
  margin-bottom: 20px;
  padding-right: 34px; /* Align with text, skipping the copy btn space */
}

.highlight-row {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border2);
}

.copy-all-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 30px;
}

.copy-all-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(46, 213, 115, 0.3);
}

.copy-all-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(46, 213, 115, 0.4);
}

/* Guide Card */
.vat-guide-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.guide-header {
  background: rgba(245, 166, 35, 0.1);
}

.guide-header h2 {
  color: var(--gold);
}

.guide-body {
  padding: 30px;
}

.guide-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.guide-item p {
  font-size: 14px;
  color: var(--text2);
  margin-bottom: 12px;
  line-height: 1.5;
}

.formula-box {
  background: var(--bg);
  border: 1px dashed var(--border2);
  border-radius: 12px;
  padding: 16px;
}

.box-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.formula-box ul {
  margin: 0;
  padding-left: 20px;
  color: var(--text2);
  font-size: 14px;
  line-height: 1.6;
}

.formula-box b {
  color: var(--text);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--green);
  color: white;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 10000;
  box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

@media (max-width: 768px) {
  .input-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .card-body, .result-body, .guide-body {
    padding: 20px;
  }
}