/* ============================================================
   THINKING.CSS — /thinking/ page styles
   Layout: sticky dark site bar + white printable document
   WilArndt.com
   ============================================================ */

/* ---- Page shell ---- */
.thinking-page {
  background: var(--c-bg);
  min-height: 100vh;
}

/* ---- Sticky dark site bar (hidden on print) ---- */
.thinking-bar {
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-border);
  padding-block: var(--sp-4);
  position: sticky;
  top: 0;
  z-index: 10;
}

.thinking-bar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.thinking-bar__back {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-text-muted);
  transition: color 0.2s ease;
}

.thinking-bar__back:hover {
  color: var(--c-text);
}

.thinking-bar__meta {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  color: var(--c-text-faint);
  letter-spacing: 0.06em;
  text-align: center;
}

.thinking-bar__actions {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
}

.thinking-bar__action {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-text-muted);
  background: none;
  border: 1px solid var(--c-border);
  padding: var(--sp-2) var(--sp-3);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
}

.thinking-bar__action:hover {
  color: var(--c-text);
  border-color: var(--c-text-muted);
}

/* ---- White document area ---- */
.thinking-doc {
  background: #ffffff;
  color: #0d0d0d;
  max-width: 760px;
  margin: var(--sp-8) auto var(--sp-16);
  padding: clamp(2rem, 6vw, 4rem);
}

@media (max-width: 820px) {
  .thinking-doc {
    margin-inline: 0;
    margin-top: 0;
  }
}

/* ---- Document header ---- */
.doc-title {
  font-family: var(--f-mono);
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 0.95;
  color: #0d0d0d;
  margin-bottom: var(--sp-4);
}

.doc-byline {
  font-family: var(--f-mono);
  font-size: var(--t-sm);
  color: #666;
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-3);
}

.doc-version {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  color: #999;
  border: 1px solid #ddd;
  padding: var(--sp-1) var(--sp-3);
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-10);
}

.doc-divider {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin-block: var(--sp-8);
}

/* ---- Section label ---- */
.doc-section-label {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #aaa;
  margin-bottom: var(--sp-6);
}

/* ---- Hierarchy note ---- */
.hierarchy-note {
  margin-top: var(--sp-6);
  font-family: var(--f-sans);
  font-size: var(--t-sm);
  font-weight: 300;
  font-style: italic;
  color: #888;
  line-height: 1.6;
}

/* ============================================================
   COMPONENT HIERARCHY TREE
   ============================================================ */

.tree {
  display: grid;
  grid-template-columns: max-content 1fr;
  column-gap: var(--sp-8);
  font-size: 0.9375rem; /* 15px */
  line-height: 1.8;
  overflow-x: auto;
}

/* Tree structure column */
.tc {
  font-family: var(--f-mono);
  white-space: pre;
  color: #0d0d0d;
}

.tc-connector {
  color: #bbb;
}

.tc-label {
  color: #0d0d0d;
}

/* Node-level weights */
.tc--area .tc-label {
  font-weight: 700;
  font-size: 1.05em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tc--goal .tc-label,
.tc--practice .tc-label {
  font-weight: 700;
}

.tc--signal .tc-label,
.tc--project .tc-label {
  font-weight: 400;
}

.tc--milestone .tc-label {
  font-weight: 400;
  color: #666;
}

.tc--milestone .tc-connector {
  color: #ddd;
}

.tc--gap {
  color: #ccc;
}

/* Hide annotations on narrow screens — tree connectors break when
   annotation text wraps to multiple lines. Definitions cover the same
   content below. */
@media (max-width: 560px) {
  .tree {
    grid-template-columns: 1fr;
  }
  .ta {
    display: none;
  }
}

/* Annotation column */
.ta {
  font-family: var(--f-sans);
  font-size: var(--t-sm);
  font-weight: 300;
  font-style: italic;
  color: #999;
  align-self: center;
  min-width: 0;
}

/* ============================================================
   COMPONENT DEFINITIONS
   ============================================================ */

.defs {
  display: grid;
  gap: var(--sp-5);
}

.def {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: var(--sp-4);
}

@media (max-width: 500px) {
  .def {
    grid-template-columns: 1fr;
    gap: var(--sp-1);
  }
}

.def-term {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #111;
  padding-top: 0.2em;
}

.def-desc {
  font-family: var(--f-sans);
  font-size: var(--t-sm);
  font-weight: 300;
  line-height: 1.75;
  color: #333;
}

/* ---- Story CTA (hidden on print) ---- */
.story-cta {
  margin-top: var(--sp-10);
  padding-top: var(--sp-8);
  border-top: 1px solid #e8e8e8;
  display: flex;
  align-items: baseline;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.story-cta__label {
  font-family: var(--f-sans);
  font-size: var(--t-sm);
  font-weight: 300;
  color: #888;
  font-style: italic;
}

.story-cta__link {
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #111;
  border-bottom: 1px solid #ccc;
  padding-bottom: 1px;
  transition: border-color 0.2s ease;
}

.story-cta__link:hover {
  border-color: #111;
}

/* ---- Document footer ---- */
.doc-footer-text {
  margin-top: var(--sp-10);
  padding-top: var(--sp-6);
  border-top: 1px solid #ebebeb;
  font-family: var(--f-mono);
  font-size: var(--t-xs);
  color: #bbb;
  letter-spacing: 0.04em;
}

/* ============================================================
   PRINT
   ============================================================ */

@media print {
  @page {
    margin: 1.5cm;
    size: letter;
  }

  .thinking-bar,
  .story-cta {
    display: none !important;
  }

  .thinking-page {
    background: #fff;
  }

  .thinking-doc {
    margin: 0;
    padding: 0;
    max-width: 100%;
  }

  .tc-connector {
    color: #999;
  }

  .tc--gap {
    color: #999;
  }

  .tc--milestone .tc-connector {
    color: #bbb;
  }

  .ta {
    color: #666;
  }
}