:root {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
  margin: 0;
  background: #f3f6fb;
  color: #0f172a;
  line-height: 1.7;
}

.ir-hero .container,
.ir-main .container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

.ir-hero {
  background: linear-gradient(120deg, #14b8a6, #0ea5e9);
  color: #fff;
  padding: 46px 0;
}

.ir-hero-inner {
  display: flex;
  justify-content: center;
  text-align: center;
}

.ir-eyebrow {
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 12px;
}

.ir-hero-text h1 {
  margin: 0 0 12px;
  font-size: clamp(2.2rem, 4vw, 3rem);
}

.ir-hero-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.ir-hero-meta span {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
}

.ir-main {
  padding: 36px 0 52px;
}

.ir-grid {
  display: flex;
  justify-content: center;
}

.ir-tool-card {
  width: 100%;
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 15px 45px rgba(15, 23, 42, 0.08);
}

.ir-upload {
  border: 2px dashed #cbd5f5;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  background: #fbfdff;
  cursor: pointer;
  margin: 18px 0;
}

.ir-upload input[type='file'] {
  display: none;
}

.ir-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 18px;
}

.ir-controls label {
  font-weight: 600;
}

.ir-controls input[type='number'] {
  width: 120px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid #cbd5f5;
}

.ir-checkbox {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.9rem;
}

.ir-button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: #0ea5e9;
  color: #fff;
}

.btn-secondary {
  background: #f1f5f9;
  color: #111827;
}

.btn-ghost {
  background: transparent;
  border: 1px solid #cbd5f5;
  color: #0ea5e9;
}

.ir-preview-list {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}

.ir-preview-item {
  border: 1px solid #e5e9f4;
  border-radius: 14px;
  padding: 12px;
  text-align: center;
}

.ir-preview-item img {
  max-width: 100%;
  border-radius: 10px;
}

.ir-info {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.ir-section h2 {
  margin-bottom: 12px;
}

.ir-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.ir-column-card {
  background: #f8fafc;
  border-radius: 16px;
  padding: 18px;
  border: 1px solid #e5e9f4;
}

.ir-column-card h3 {
  margin-top: 0;
}

.ir-column-card ul {
  padding-left: 18px;
  margin: 12px 0 0;
}

.ir-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.ir-feature-grid article {
  background: #fff;
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.05);
  border: 1px solid #eef2ff;
}

.ir-faq h2 {
  margin-bottom: 16px;
}

.ir-faq-item + .ir-faq-item {
  margin-top: 12px;
}

.ir-faq-item {
  background: #fff;
  border-radius: 14px;
  padding: 14px 18px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.04);
}

@media (max-width: 700px) {
  .ir-button-row {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}