:root {
  --ey-bg: #f5f7f7;
  --ey-surface: #ffffff;
  --ey-text: #132021;
  --ey-muted: #5b6c71;
  --ey-brand: #1aa6a6;
  --ey-brand-dark: #0f5257;
  --ey-highlight: #eaf8f8;
  --ey-radius: 16px;
  --ey-card-border: 1px solid rgba(15, 82, 87, 0.08);
  --ey-shadow: 0 18px 35px rgba(15, 82, 87, 0.08);
  --ey-body-font: 'EasyType Sans', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --ey-mono-font: ui-monospace, SFMono-Regular, 'Roboto Mono', Menlo, Consolas, monospace;
}

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

body.ey-shell {
  margin: 0;
  min-height: 100vh;
  background: var(--ey-bg);
  color: var(--ey-text);
  font-family: var(--ey-body-font);
  line-height: 1.6;
  font-size: 16px;
  font-weight: 400;
}

.ey-shell a {
  color: var(--ey-brand-dark);
}

.ey-shell img {
  max-width: 100%;
  height: auto;
}

.ey-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem) clamp(1.25rem, 4vw, 2rem) clamp(2.5rem, 5vw, 3.75rem);
}

.ey-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 3vw, 1.85rem);
  margin: clamp(1.25rem, 4vw, 2.75rem) 0;
}

@media (min-width: 900px) {
  .ey-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  }
}

.ey-card {
  background: var(--ey-surface);
  border-radius: var(--ey-radius);
  border: var(--ey-card-border);
  box-shadow: var(--ey-shadow);
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.ey-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--ey-highlight);
  color: var(--ey-brand-dark);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.ey-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(135deg, var(--ey-brand), #18bab7);
  box-shadow: 0 14px 30px rgba(26, 166, 166, 0.25);
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.ey-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(26, 166, 166, 0.3);
}

.ey-btn:focus-visible {
  outline: 2px solid var(--ey-brand-dark);
  outline-offset: 2px;
}

.ey-hero {
  text-align: center;
  padding: clamp(2.25rem, 6vw, 3.75rem) clamp(1.5rem, 4vw, 2.75rem) clamp(1.75rem, 4vw, 2.75rem);
  background: linear-gradient(135deg, #f4ffff 0%, #ffffff 65%);
  border-bottom: 1px solid rgba(15, 82, 87, 0.08);
  box-shadow: 0 12px 30px rgba(15, 82, 87, 0.05);
}

.ey-hero h1 {
  margin: 0.65rem 0 0;
  font-size: clamp(2rem, 6vw, 2.85rem);
  color: var(--ey-brand-dark);
}

.ey-hero .ey-intro {
  max-width: 62ch;
  margin: 0.9rem auto 1.5rem;
  color: var(--ey-muted);
  font-size: 1rem;
}

.ey-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(15, 82, 87, 0.15);
  background: #ffffff;
  font-size: 0.82rem;
  color: var(--ey-brand-dark);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ey-footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--ey-muted);
  margin: 3rem 0 1.25rem;
  padding: 0 1rem;
}

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

.ey-note {
  font-size: 0.85rem;
  color: var(--ey-muted);
}

.ey-kbd {
  font-family: var(--ey-mono-font);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid rgba(15, 82, 87, 0.15);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ey-brand-dark);
}

.ey-flex {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.ey-section-title {
  font-size: 1.25rem;
  margin: 0 0 0.5rem;
  color: var(--ey-brand-dark);
}