/* ============================================
   Media shelf — the hidden menu that opens up.
   Figures, galleries, animations, asides. Matches the
   magazine palette from styles.css (paper/ink/amber/moss).
   ============================================ */

/* ---- The trigger button that lives alongside the lesson ---- */
/* Keeps itself out of the reading column — docks to the right edge
   of the viewport on wide screens and to the bottom on narrow ones. */
.media-shelf-trigger {
  position: fixed;
  right: 20px;
  bottom: 96px;  /* Clear the Ask Claude FAB */
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--rule);
  background: var(--paper);
  cursor: pointer;
  color: var(--ink);
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  box-shadow: 0 10px 30px rgba(26, 29, 43, 0.10);
}
.media-shelf-trigger:hover {
  background: var(--paper-2);
  border-color: var(--ink);
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(26, 29, 43, 0.14);
}
.media-shelf-trigger-bar {
  width: 3px;
  height: 30px;
  background: var(--amber);
  display: block;
}
.media-shelf-trigger-label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.1;
}
.media-shelf-trigger-eyebrow {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.media-shelf-trigger-count {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink);
  margin-top: 2px;
}
/* Desktop: pin it to the middle-right once there's room */
@media (min-width: 1100px) {
  .media-shelf-trigger {
    top: 50%;
    bottom: auto;
    right: 28px;
    transform: translateY(-50%);
    padding: 14px 18px;
  }
  .media-shelf-trigger:hover {
    transform: translateY(-50%) translateX(-4px);
  }
  .media-shelf-trigger-bar { height: 34px; }
  .media-shelf-trigger-count { font-size: 17px; }
}
@media (max-width: 520px) {
  .media-shelf-trigger {
    right: 12px;
    bottom: 88px;
    padding: 9px 12px;
  }
  .media-shelf-trigger-eyebrow { font-size: 8.5px; }
  .media-shelf-trigger-count { font-size: 13px; }
  .media-shelf-trigger-bar { height: 24px; }
}

/* ---- Drawer + backdrop ---- */
.media-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 29, 43, 0.42);
  backdrop-filter: saturate(0.9) blur(2px);
  z-index: 100;
  animation: media-fade 0.2s ease-out;
}
.media-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(560px, 96vw);
  background: var(--paper);
  z-index: 101;
  display: flex;
  flex-direction: column;
  box-shadow: -24px 0 60px rgba(26, 29, 43, 0.18);
  animation: media-slide 0.28s cubic-bezier(0.2, 0.8, 0.2, 1);
  border-left: 1px solid var(--rule);
}
@keyframes media-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes media-slide {
  from { transform: translateX(40px); opacity: 0.3; }
  to   { transform: translateX(0);     opacity: 1; }
}

.media-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px 18px;
  border-bottom: 1px solid var(--rule);
}
.media-drawer-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.media-drawer-title {
  font-family: var(--serif);
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.01em;
  margin: 0;
}
.media-drawer-close {
  width: 36px; height: 36px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink-2);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  border-radius: 0;
  font-family: var(--serif);
}
.media-drawer-close:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

.media-drawer-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 0 16px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
}
.media-drawer-tab {
  background: transparent;
  border: 0;
  padding: 14px 14px 12px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-3);
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.15s, border-color 0.15s;
}
.media-drawer-tab:hover { color: var(--ink); }
.media-drawer-tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--amber);
}
.media-drawer-tab-count {
  font-size: 10px;
  background: var(--paper-3);
  padding: 2px 6px;
  border-radius: 8px;
  color: var(--ink-2);
  letter-spacing: 0.05em;
}
.media-drawer-tab.is-active .media-drawer-tab-count {
  background: var(--amber);
  color: var(--paper);
}

.media-drawer-body {
  padding: 24px 28px 40px;
  overflow-y: auto;
  flex: 1;
}

/* ---- List layout inside drawer (articles, courses, primary, tools) ---- */
.media-drawer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.media-drawer-list li {
  border-bottom: 1px solid var(--rule-soft);
}
.media-drawer-list li:last-child { border-bottom: 0; }
.media-drawer-list a {
  display: block;
  padding: 16px 0;
  color: inherit;
  text-decoration: none;
  transition: padding-left 0.18s;
}
.media-drawer-list a:hover {
  padding-left: 6px;
}
.media-drawer-list-title {
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.2;
  color: var(--ink);
}
.media-drawer-list-sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: 6px;
}
.media-drawer-list-why {
  font-size: 13px;
  color: var(--ink-3);
  margin-top: 8px;
  line-height: 1.5;
  font-style: italic;
}

/* ---- Inline figures / galleries ---- */
.lesson-figure img { filter: saturate(0.95); }
.lesson-gallery { margin: 32px 0 0; }

/* ---- Aside block ---- */
.lesson-aside {
  margin: 32px 0;
  padding: 18px 22px;
  border-left: 2px solid var(--moss);
  background: var(--paper-2);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
}
.lesson-aside-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 8px;
}