.tool-hero {
  background: linear-gradient(135deg, #0f766e 0%, #38bdf8 100%);
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
  color: #fff;
}

.tool-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: #fff !important;
  line-height: 1.25;
  margin-bottom: 0.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.tool-hero p {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
}

.tool-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  padding: 0.3rem 0.9rem;
  font-size: 0.8rem;
  color: #fff;
  margin-bottom: 1rem;
}

.tool-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.calc-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

.calc-card h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.calc-card h2 i {
  color: #0ea5e9;
}

#dropZone,
.drop-zone {
  border: 2.5px dashed rgba(15, 113, 110, 0.35) !important;
  border-radius: 18px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  position: relative;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  margin-bottom: 1rem;
  background: rgba(56, 189, 248, 0.08);
}

#dropZone:hover,
.drop-zone:hover {
  border-color: #38bdf8 !important;
  background: rgba(56, 189, 248, 0.12);
  transform: translateY(-1px);
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.drop-zone p {
  margin: 0.35rem 0;
  color: var(--text);
}

.drop-zone p:first-child {
  font-size: 2.4rem;
  margin-bottom: 0.65rem;
}

.drop-zone-title {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.drop-zone-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  font-size: 0.95rem;
  color: var(--text);
}

.convert-btn {
  width: 100%;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 0.9rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.convert-btn:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(14, 165, 233, 0.35);
}

.convert-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.progress-bar {
  margin: 1rem 0;
}

.progress-bar .progress-fill {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar .progress-fill-inner {
  height: 100%;
  width: 0%;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  border-radius: 999px;
  transition: width 0.3s;
}

.status-msg {
  display: none;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  margin: 1rem 0;
  text-align: center;
}

.status-msg.status-success {
  display: block;
  background: #f0fdf4;
  color: #065f46;
  border: 1px solid #bbf7d0;
}

.status-msg.status-error {
  display: block;
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (max-width: 600px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

.result-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  text-align: center;
  width: 100%;
}

.result-card .result-card-body {
  padding: 0.9rem;
}

.result-card .result-card-body p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-card .result-card-body .download-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 0.35rem;
  transition: background 0.2s;
}

.result-card .result-card-body .download-btn:hover {
  background: var(--primary-dark);
}

.related-tools-section {
  margin: 2rem 0;
}

.related-tools-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 600px) {
  .related-tools-grid {
    grid-template-columns: 1fr;
  }
}

.tool-card {
  display: block;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--card-bg);
}

.tool-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.tool-card .icon-wrapper,
.tool-card .icon-wrapper svg {
  color: var(--primary);
}

.tool-card .icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  margin-bottom: 0.75rem;
}

.tool-card .tool-title {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.tool-card .tool-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.content-section {
  margin-top: 2rem;
}

.content-section h2 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
  margin: 2rem 0 0.75rem;
  border-left: 3px solid #0ea5e9;
  padding-left: 0.75rem;
}

.content-section p {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.steps-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  counter-reset: steps;
  list-style: none;
}

.steps-box li {
  padding: 0.5rem 0 0.5rem 2.5rem;
  position: relative;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}

.steps-box li:last-child {
  border-bottom: none;
}

.steps-box li::before {
  counter-increment: steps;
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 24px;
  height: 24px;
  background: #0ea5e9;
  color: #fff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 24px;
  text-align: center;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

@media (max-width: 600px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-pill {
  background: var(--primary-light);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}

.feature-pill strong {
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.feature-pill p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 0.85rem;
}

.faq-item h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.faq-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.65;
}

.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-list li {
  border-bottom: 1px solid var(--border);
}

.related-list li:last-child {
  border-bottom: none;
}

.related-list a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s;
}

.related-list a:hover {
  color: var(--primary);
}

.related-list a::before {
  content: "→";
  color: #0ea5e9;
  font-weight: 700;
  flex-shrink: 0;
}