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

:root {
  --red: #e74c3c;
  --red-dark: #c0392b;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-100: #f3f4f6;
  --white: #ffffff;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-100);
  background: var(--gray-900);
  line-height: 1.6;
}

a {
  color: var(--red);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Hero */

.hero {
  text-align: center;
  padding: 5rem 1.5rem 4rem;
  max-width: 700px;
  margin: 0 auto;
}

.hero img {
  width: 180px;
  height: auto;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--gray-400);
  margin-bottom: 2.5rem;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--red);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--red-dark);
}

.btn-secondary {
  background: var(--gray-800);
  color: var(--gray-100);
  border: 1px solid var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-700);
}

/* Features */

.features {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature {
  background: var(--gray-800);
  border: 1px solid var(--gray-700);
  border-radius: 10px;
  padding: 1.5rem;
}

.feature h3 {
  color: var(--white);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.feature p {
  color: var(--gray-400);
  font-size: 0.95rem;
}

.feature ul {
  color: var(--gray-400);
  font-size: 0.95rem;
  list-style: disc;
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
}

/* Quick start */

.quickstart {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  text-align: center;
}

.quickstart h2 {
  color: var(--white);
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
}

.quickstart pre {
  background: var(--gray-800);
  border: 1px solid var(--gray-700);
  border-radius: 10px;
  padding: 1.5rem;
  text-align: left;
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.8;
}

.quickstart code {
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
  color: var(--gray-300);
}

.quickstart .comment {
  color: var(--gray-400);
}

/* Footer */

footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--gray-800);
  color: var(--gray-400);
  font-size: 0.85rem;
}

footer a {
  color: var(--gray-300);
}