/* --- Reset & Base --- */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #fff;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Typography --- */

h1 {
  font-size: 2.4rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* --- Buttons --- */

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-primary {
  background: #1a1a1a;
  color: #fff;
}

.btn-primary:hover {
  background: #333;
}

/* --- Hero --- */

.hero {
  padding: 5rem 0 4rem;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background: #f0f0f0;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #666;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: #555;
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* --- Sections --- */

.section {
  padding: 4rem 0;
}

.section-alt {
  background: #fafafa;
}

.section-sub {
  color: #666;
  margin-bottom: 2rem;
}

/* --- Card Grid --- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.card {
  padding: 1.5rem;
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 10px;
}

.card p {
  color: #555;
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* --- Steps --- */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
  text-align: center;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: #1a1a1a;
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.8rem;
}

.step p {
  color: #555;
  font-size: 0.95rem;
}

/* --- Demo Placeholder --- */

.demo-placeholder {
  background: #f0f0f0;
  border-radius: 10px;
  padding: 4rem 2rem;
  text-align: center;
  color: #888;
}

/* --- Pricing --- */

.pricing-card {
  max-width: 400px;
  margin: 0 auto;
  text-align: center;
  padding: 2.5rem;
  border: 2px solid #1a1a1a;
  border-radius: 12px;
}

.price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.price span {
  font-size: 1.2rem;
  font-weight: 400;
  color: #666;
}

.pricing-card ul {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.pricing-card li {
  padding: 0.4rem 0;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
}

.pricing-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #22c55e;
  font-weight: 700;
}

.pricing-note {
  font-size: 0.85rem;
  color: #888;
  margin-top: 1rem;
  margin-bottom: 0;
}

/* --- FAQ --- */

.faq {
  max-width: 600px;
  margin: 0 auto;
}

details {
  border-bottom: 1px solid #e5e5e5;
  padding: 1rem 0;
}

summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::before {
  content: "+";
  display: inline-block;
  width: 1.5rem;
  font-weight: 400;
  color: #888;
}

details[open] summary::before {
  content: "−";
}

details p {
  margin-top: 0.8rem;
  color: #555;
  font-size: 0.95rem;
}

/* --- Footer --- */

.footer {
  padding: 3rem 0;
  text-align: center;
  color: #888;
  font-size: 0.85rem;
}

.footer-links {
  margin-top: 0.5rem;
}

.footer-links a {
  color: #888;
}

.footer-credit {
  margin-top: 1rem;
}

.footer-credit a {
  color: #888;
}

/* --- Responsive --- */

@media (max-width: 600px) {
  html {
    font-size: 16px;
  }

  h1 {
    font-size: 1.8rem;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }

  .section {
    padding: 2.5rem 0;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

/* Blog */

.blog-header {
  padding: 1.5rem 0;
}

.blog-header a {
  text-decoration: none;
  color: #666;
  font-size: 0.9rem;
}

.blog-header a:hover {
  color: #1a1a1a;
}

.blog-list {
  padding: 2rem 0 4rem;
}

.blog-card {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid #eee;
}

.blog-card h3 {
  margin-bottom: 0.25rem;
}

.blog-card h3 a {
  text-decoration: none;
  color: #1a1a1a;
}

.blog-card h3 a:hover {
  color: #2563eb;
}

.blog-date {
  color: #888;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.blog-post {
  padding: 2rem 0 4rem;
  max-width: 680px;
}

.blog-content h2 {
  margin-top: 2rem;
}

.blog-content p {
  margin-bottom: 1rem;
}

.blog-content ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.blog-content li {
  margin-bottom: 0.4rem;
}