:root {
  color-scheme: dark;
  --bg: #0c0f16;
  --card: #141a24;
  --muted: #9aa4b2;
  --text: #e6edf3;
  --accent: #7c5cff;
  --accent-soft: rgba(124, 92, 255, 0.2);
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
}

body {
  background: radial-gradient(circle at top, #1b2240 0%, var(--bg) 45%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 56px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 3vw, 3.4rem);
  margin-bottom: 16px;
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.subtitle {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 24px;
}

.input-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(5, 8, 20, 0.55);
}

.input-card label {
  display: block;
  font-weight: 600;
  margin-bottom: 12px;
}

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

input {
  flex: 1 1 240px;
  background: #0c111b;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 0.98rem;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

button {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

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

button.primary:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

button.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

button.ghost:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.helper {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.preview-card {
  background: linear-gradient(160deg, rgba(124, 92, 255, 0.12), rgba(20, 26, 36, 0.95));
  border: 1px solid var(--border);
  padding: 28px;
  border-radius: 20px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-block;
  background: rgba(124, 92, 255, 0.2);
  color: var(--accent);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  margin-bottom: 16px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.preview-card h2 {
  margin-bottom: 12px;
}

.preview-card p {
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 20px;
}

.output {
  background: rgba(12, 15, 22, 0.9);
  border: 1px dashed rgba(124, 92, 255, 0.5);
  border-radius: 12px;
  padding: 16px;
  word-break: break-all;
  min-height: 76px;
  display: flex;
  align-items: center;
}

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

.actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.steps {
  margin-top: 72px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.step {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.step span {
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(124, 92, 255, 0.2);
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.step h3 {
  margin-bottom: 8px;
}

.step p {
  color: var(--muted);
  line-height: 1.5;
}

.footer {
  margin-top: 72px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    gap: 16px;
  }

  .actions {
    flex-direction: column;
  }
}