:root {
  --ink: #1a1a1a;
  --muted: #666;
  --accent: #0b5fff;
  --accent-dark: #0946c4;
  --bg: #ffffff;
  --soft: #f5f7fb;
  --border: #e5e8ef;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  line-height: 1.55;
}

.hero {
  padding: 4rem 1.5rem 3rem;
  text-align: center;
  background: linear-gradient(180deg, #eef3ff 0%, #ffffff 100%);
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
}

.hero .sub {
  max-width: 44rem;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.05rem;
}

main {
  max-width: 60rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.section {
  margin-top: 3rem;
}

.section h2 {
  font-size: 1.5rem;
  margin: 0 0 1rem;
}

.muted { color: var(--muted); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.75rem;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem 0.9rem 2.9rem;
  position: relative;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0.9rem;
  top: 0.85rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

input, textarea {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.7rem;
  font: inherit;
  font-weight: 400;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

textarea { resize: vertical; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

button {
  font: inherit;
  font-weight: 600;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

button:hover { filter: brightness(1.03); }
button:disabled { opacity: 0.55; cursor: default; }

.status {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.output {
  margin-top: 0.75rem;
  padding: 1rem;
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  white-space: pre-wrap;
  font: 0.92rem/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.video {
  width: 100%;
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #000;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1rem;
}

.card {
  background: var(--soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
}

.card h3 { margin: 0 0 0.5rem; }
.card ul, .card ol { margin: 0; padding-left: 1.2rem; }
.card li { margin: 0.25rem 0; }

footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

footer a { color: var(--accent); }