:root {
  --primary: #4a7c59;
  --primary-strong: #2a6038;
  --primary-soft: #d8f0de;
  --primary-container: #78a886;
  --surface: #faf6f0;
  --surface-low: #f5f1ea;
  --surface-high: #eae6de;
  --tertiary: #705c30;
  --tertiary-container: #c4a66a;
  --ink: #2e3230;
  --muted: #4a4e4a;
  --outline: #74796e;
  --outline-variant: #c4c8bc;
  --error: #b83230;
  --error-container: #ffdad8;
  --success: #2b8a46;
  --shadow-soft: 0 4px 20px rgba(46, 50, 48, 0.06);
  --shadow-card: 0 1px 5px rgba(0, 0, 0, 0.06);
  --shadow-raised: 0 8px 30px rgba(46, 50, 48, 0.08);
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  --font-headline: 'Literata', serif;
  --font-body: 'Nunito Sans', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
  min-height: 100vh;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

h1, h2, h3, h4 { font-family: var(--font-headline); color: var(--primary); }

.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.85rem 1.5rem; border-radius: var(--radius-lg); font-weight: 800;
  background: var(--primary); color: #fff; border: none; cursor: pointer;
  transition: all 0.2s; font-family: var(--font-body);
}
.btn-primary:hover { background: var(--primary-strong); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.5rem 1.2rem; border-radius: var(--radius-md); font-weight: 700;
  background: transparent; color: var(--primary); border: 1px solid var(--outline-variant);
  cursor: pointer; transition: all 0.15s; font-family: var(--font-body);
}
.btn-secondary:hover { background: var(--primary-soft); border-color: var(--primary); }

.card {
  background: #fff; border: 1px solid var(--outline-variant); border-radius: var(--radius-xl);
  padding: 1.5rem; box-shadow: var(--shadow-soft);
}