:root {
  --color-background: #f7f7fb;
  --color-surface: #ffffff;
  --color-primary: #2f5dff;
  --color-text: #111827;
  --color-muted: #6b7280;
  --color-border: rgba(17, 24, 39, 0.08);
  --max-width: 960px;
  --radius: 20px;
  --shadow: 0 18px 40px rgba(17, 24, 39, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero {
  background: radial-gradient(circle at top right, rgba(47, 93, 255, 0.12), transparent 55%),
    radial-gradient(circle at bottom left, rgba(47, 93, 255, 0.18), transparent 45%),
    var(--color-surface);
  padding: 6rem 0 4rem;
}

.hero__avatar {
  width: 128px;
  height: 128px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #2f5dff, #7b3eff);
  box-shadow: var(--shadow);
  border: 6px solid rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--color-muted);
  margin: 0 0 1rem;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  margin: 0 0 0.75rem;
  font-weight: 700;
}

.hero__subtitle {
  margin: 0 0 2rem;
  max-width: 40ch;
  color: var(--color-muted);
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 10px 25px rgba(47, 93, 255, 0.2);
}

.btn:hover,
.btn:focus {
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 14px 35px rgba(47, 93, 255, 0.25);
}

.btn--ghost {
  background: rgba(47, 93, 255, 0.08);
  color: var(--color-primary);
  box-shadow: none;
}

main {
  display: flex;
  flex-direction: column;
  gap: 4rem;
  padding: 4rem 0;
}

.section {
  padding: 0 0 2rem;
}

.section--alt {
  background: var(--color-surface);
  border-radius: var(--radius);
  margin: 0 1.5rem;
  padding: 3rem 0;
  box-shadow: var(--shadow);
}

.section--alt .container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.section h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

.section p {
  margin: 0 0 1rem;
  color: var(--color-muted);
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: rgba(255, 255, 255, 0.92);
  padding: 1.75rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card h3 {
  margin: 0;
}

.card p {
  margin: 0;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.timeline li {
  border-left: 2px solid rgba(17, 24, 39, 0.08);
  padding-left: 1.5rem;
  position: relative;
}

.timeline li::before {
  content: '';
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  position: absolute;
  left: -7px;
  top: 0.3rem;
  box-shadow: 0 0 0 4px rgba(47, 93, 255, 0.15);
}

.timeline h3 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.timeline__time {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted);
  display: block;
  margin-bottom: 0.5rem;
}

.footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0 3rem;
  background: var(--color-surface);
}

.footer .container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.footer__links {
  display: flex;
  gap: 1rem;
  color: var(--color-muted);
}

@media (min-width: 768px) {
  .hero .container {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 3rem;
  }

  .hero__avatar {
    margin-bottom: 0;
  }

  .section--alt {
    margin: 0 3rem;
  }
}