:root {
  --color-bg: #FAF8F5;
  --color-paper: #FFFFFF;
  --color-ink: #1A1A1A;
  --color-text: #4A4A4A;
  --color-text-secondary: #6B6B6B;
  --color-text-tertiary: #9A9A9A;
  --color-accent: #1D9E75;
  --color-accent-light: rgba(29, 158, 117, 0.12);
  --color-border: rgba(0, 0, 0, 0.08);
  --max-width: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1A1A1A;
    --color-paper: #242424;
    --color-ink: #F5F5F5;
    --color-text: #C5C5C5;
    --color-text-secondary: #9A9A9A;
    --color-text-tertiary: #6B6B6B;
    --color-accent: #2DBB8C;
    --color-accent-light: rgba(45, 187, 140, 0.18);
    --color-border: rgba(255, 255, 255, 0.10);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.site-header .logo {
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-header .logo-mark {
  width: 24px;
  height: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: stretch;
  gap: 2px;
}

.site-header .logo-mark span {
  height: 4px;
  background: white;
  border-radius: 1px;
}

.site-header .logo-mark span:nth-child(1) { width: 50%; opacity: 0.45; }
.site-header .logo-mark span:nth-child(2) { width: 75%; opacity: 0.70; align-self: flex-end; }
.site-header .logo-mark span:nth-child(3) { width: 100%; opacity: 1.0; }

.site-header h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--color-ink);
}

.site-header a {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Typography */
h1.page-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 8px;
  line-height: 1.2;
}

p.subtitle {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin: 0 0 40px;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 40px 0 12px;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 24px 0 8px;
}

p, ul, ol {
  margin: 0 0 16px;
  color: var(--color-text);
}

ul, ol {
  padding-left: 24px;
}

li {
  margin-bottom: 6px;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

strong {
  color: var(--color-ink);
  font-weight: 600;
}

.meta {
  font-size: 14px;
  color: var(--color-text-tertiary);
  margin-bottom: 32px;
}

/* Hero (landing) */
.hero {
  text-align: center;
  padding: 40px 0 56px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 16px;
  line-height: 1.1;
  letter-spacing: -0.5px;
}

.hero .lead {
  font-size: 20px;
  color: var(--color-text-secondary);
  margin: 0 auto 32px;
  max-width: 520px;
  line-height: 1.5;
}

.hero .badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  border-radius: 100px;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cta-button {
  display: inline-block;
  padding: 14px 28px;
  background: var(--color-accent);
  color: white !important;
  font-size: 17px;
  font-weight: 600;
  border-radius: 12px;
  text-decoration: none;
  transition: opacity 0.15s;
}

.cta-button:hover {
  opacity: 0.9;
}

/* Steps section */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin: 56px 0;
}

@media (min-width: 640px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step {
  padding: 24px;
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: 16px;
}

.step .step-number {
  display: inline-block;
  width: 28px;
  height: 28px;
  background: var(--color-accent-light);
  color: var(--color-accent);
  border-radius: 50%;
  text-align: center;
  line-height: 28px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 12px;
}

.step h3 {
  margin: 0 0 6px;
  font-size: 17px;
}

.step p {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Audience section */
.audience {
  background: var(--color-paper);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px;
  margin: 40px 0;
}

.audience h2 {
  margin-top: 0;
}

.audience ul {
  list-style: none;
  padding: 0;
}

.audience li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
}

.audience li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* Footer */
.site-footer {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-tertiary);
  text-align: center;
}

.site-footer nav {
  margin-bottom: 16px;
}

.site-footer nav a {
  margin: 0 12px;
  color: var(--color-text-secondary);
  text-decoration: none;
}

.site-footer nav a:hover {
  color: var(--color-accent);
}