/* =========================================================
   DESIGN TOKENS — Leafy Green Garden palette
   ========================================================= */
:root {
  /* Brand colors */
  --color-elm:        #2D5016;
  --color-moss:       #4A7C2F;
  --color-olive:      #6B7C3A;
  --color-sage:       #8FAF5A;
  --color-lemony:     #F0EED0;
  --color-parchment:  #FAFAF5;
  --color-cream:      #F5F3E8;

  /* Text */
  --color-bark:       #2C2416;
  --color-bark-mid:   #4A3D2C;
  --color-bark-light: #7A6A55;

  /* UI */
  --color-border:     #D4CEB8;
  --color-border-mid: #BFB89E;
  --color-highlight:  #E8F5D0;
  --color-highlight-strong: #C8E6A0;

  /* Semantic */
  --color-link:       #2D5016;
  --color-link-hover: #4A7C2F;
  --color-code-bg:    #EFF5E4;
  --color-code-border:#C8D8A8;

  /* Typography */
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Layout */
  --header-height: 64px;
  --content-max:   1400px;
  --prose-max:     820px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(45,80,22,0.08);
  --shadow-md:  0 4px 12px rgba(45,80,22,0.12);
  --shadow-lg:  0 8px 24px rgba(45,80,22,0.16);

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-mid:  250ms ease;
}

/* =========================================================
   RESET & BASE
   ========================================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-bark);
  background-color: var(--color-parchment);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg { max-width: 100%; display: block; }

/* =========================================================
   TYPOGRAPHY
   ========================================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-elm);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  scroll-margin-top: calc(var(--header-height) + 20px);
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  background: linear-gradient(135deg, var(--color-elm) 0%, var(--color-moss) 60%, var(--color-olive) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 0;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  color: var(--color-elm);
  border-bottom: 2px solid var(--color-highlight-strong);
  padding-bottom: var(--space-2);
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--color-moss);
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-sage);
}

h4 { font-size: 1.1rem; color: var(--color-olive); }
h5, h6 { font-size: 1rem; color: var(--color-bark-mid); }

p {
  margin-bottom: var(--space-5);
  color: var(--color-bark-mid);
}

/* Allow tables, code blocks, lists to span further */

a {
  color: var(--color-link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
a:hover {
  color: var(--color-link-hover);
  border-bottom-color: var(--color-sage);
}
a:focus-visible {
  outline: 2px solid var(--color-sage);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong { color: var(--color-elm); font-weight: 600; }
em { color: var(--color-bark-mid); }

/* Inline code */
:not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(107, 124, 58, 0.08);
  color: var(--color-bark-mid);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.35em;
}

/* =========================================================
   LISTS
   ========================================================= */
ul, ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}
li {
  margin-bottom: var(--space-2);
  color: var(--color-bark-mid);
}
li > p { margin-bottom: var(--space-2); }

/* Task lists — reset bullets */
ul.contains-task-list {
  list-style: none;
  padding-left: var(--space-2);
}
.task-list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-1) 0;
}
.task-list-item input[type="checkbox"] {
  margin-top: 0.3em;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--color-moss);
  cursor: pointer;
}
.task-list-item-label { flex: 1; cursor: pointer; }
.task-list-item input[type="checkbox"]:checked + .task-list-item-label,
.task-list-item.is-checked .task-list-item-label {
  text-decoration: line-through;
  color: var(--color-bark-light);
}

/* =========================================================
   BLOCKQUOTE
   ========================================================= */
blockquote {
  border-left: 4px solid var(--color-sage);
  background: var(--color-highlight);
  padding: var(--space-4) var(--space-6);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-6) 0;
  color: var(--color-bark-mid);
  font-style: italic;
}
blockquote p { margin-bottom: 0; }

/* =========================================================
   TABLES
   ========================================================= */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: var(--space-6) 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 500px;
}
thead tr {
  background: linear-gradient(135deg, var(--color-elm), var(--color-moss));
  color: #fff;
}
th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-bark-mid);
  vertical-align: top;
}
tbody tr:nth-child(even) { background: var(--color-cream); }
tbody tr:hover { background: var(--color-highlight); }
tbody tr:last-child td { border-bottom: none; }

/* =========================================================
   HR
   ========================================================= */
hr {
  border: none;
  border-top: 2px solid var(--color-border);
  margin: var(--space-10) 0;
}

/* =========================================================
   LAYOUT
   ========================================================= */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-10) var(--space-8);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 768px) {
  .main-content { padding: var(--space-6) var(--space-4); }
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.3rem; }
}
@media (min-width: 1920px) {
  :root { --content-max: 1600px; }
}