/* Fieldly — Learn / Guides layout
   Loaded on every page under /learn in addition to shared.css.
   Provides the two-column layout: sticky left "Learn" nav + guide content. */

/* ── Layout shell ─────────────────────────────────────────────────────── */
.learn-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + clamp(24px, 4vw, 48px)) var(--page-px) clamp(56px, 8vw, 96px);
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

/* ── Left "Learn" navigation ──────────────────────────────────────────── */
.learn-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  align-self: start;
}

.learn-sidebar-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
  padding-left: 14px;
}

.learn-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-left: 2px solid var(--gray-100);
}

.learn-nav a {
  display: block;
  text-decoration: none;
  color: var(--gray-700);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  padding: 9px 14px;
  margin-left: -2px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.learn-nav a:hover {
  color: var(--orange);
  background: rgba(232,67,10,0.06);
}

.learn-nav a.active {
  color: var(--orange);
  font-weight: 700;
  border-left-color: var(--orange);
  background: rgba(232,67,10,0.06);
}

/* ── Guide content column ─────────────────────────────────────────────── */
.learn-content {
  min-width: 0;
  max-width: 760px;
}

.learn-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 12px;
}

.learn-content h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--navy);
  margin-bottom: 16px;
}

.learn-lead {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.6;
  color: var(--gray-700);
  margin-bottom: 40px;
}

.learn-content h2 {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin: 48px 0 14px;
  scroll-margin-top: calc(var(--nav-h) + 24px);
}

.learn-content h3 {
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  color: var(--navy);
  margin: 32px 0 10px;
}

.learn-content p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-700);
  margin-bottom: 18px;
}

.learn-content ul,
.learn-content ol {
  margin: 0 0 18px 22px;
  color: var(--gray-700);
}

.learn-content li {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 8px;
}

.learn-content a {
  color: var(--orange);
  font-weight: 600;
  text-decoration: none;
}

.learn-content a:hover { text-decoration: underline; }

/* ── Figures / screenshots ────────────────────────────────────────────────
   Drop an image into this page's folder and point <img src> at it.
   The .placeholder variant renders a labelled dashed box until the real
   image exists, so pages look intentional while you gather screenshots. */
.learn-figure {
  margin: 24px 0 32px;
}

.learn-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--gray-100);
  box-shadow: 0 12px 36px rgba(27,43,75,0.10);
}

.learn-figure figcaption {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: 10px;
  text-align: center;
}

/* Real (non-placeholder) figure images are click-to-zoom */
.learn-figure img { cursor: zoom-in; }

/* ── Click-to-zoom lightbox ───────────────────────────────────────────────
   A single overlay is created by JS and reused for every figure on the page.
   Clicking the image (or Esc / clicking the backdrop) toggles .open. */
.learn-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 56px);
  background: rgba(27,43,75,0.88);
  backdrop-filter: blur(4px);
  cursor: zoom-out;
  opacity: 0;
  transition: opacity 0.18s ease;
}

.learn-lightbox.open {
  display: flex;
  opacity: 1;
}

.learn-lightbox img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border-radius: var(--radius);
  box-shadow: 0 24px 72px rgba(0,0,0,0.55);
  cursor: zoom-out;
}

.learn-figure.placeholder .learn-figure-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 240px;
  padding: 32px;
  text-align: center;
  border-radius: var(--radius-lg);
  border: 2px dashed var(--gray-300);
  background: var(--gray-50);
  color: var(--gray-500);
}

.learn-figure.placeholder .learn-figure-box strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--gray-700);
}

.learn-figure.placeholder .learn-figure-box code {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--orange);
  background: rgba(232,67,10,0.07);
  padding: 2px 8px;
  border-radius: 6px;
}

/* ── Callout / tip box ────────────────────────────────────────────────── */
.learn-callout {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  margin: 24px 0 32px;
  border-radius: var(--radius);
  border: 1.5px solid var(--gray-100);
  border-left: 4px solid var(--orange);
  background: var(--gray-50);
}

.learn-callout svg {
  width: 20px;
  height: 20px;
  color: var(--orange);
  flex-shrink: 0;
  margin-top: 2px;
}

.learn-callout p {
  margin: 0;
  font-size: 15px;
}

/* ── Prev / next footer nav within a guide ────────────────────────────── */
.learn-pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--gray-100);
  flex-wrap: wrap;
}

.learn-pager a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  padding: 12px 18px;
  border: 1.5px solid var(--gray-100);
  border-radius: var(--radius);
  transition: border-color 0.15s, background 0.15s;
  max-width: 48%;
}

.learn-pager a:hover {
  border-color: var(--orange);
  background: rgba(232,67,10,0.04);
}

.learn-pager a.next { text-align: right; margin-left: auto; }

.learn-pager .learn-pager-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.learn-pager .learn-pager-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
}

/* ── Mobile: collapse the sidebar into a menu above the content ───────── */
@media (max-width: 900px) {
  .learn-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .learn-sidebar {
    position: static;
    top: auto;
    border: 1.5px solid var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 16px 14px;
    background: var(--gray-50);
  }

  .learn-sidebar-title { padding-left: 0; margin-bottom: 10px; }

  .learn-nav { border-left: none; }

  .learn-nav a {
    margin-left: 0;
    border-left: none;
    border-radius: var(--radius);
  }

  .learn-nav a.active { border-left: none; }
}