/* AMPS Reader — productivity layer (study panel, chapter search, missions) */
.reader-chapter-search {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  padding: 0.5rem 1rem;
  background: var(--surface-2, #f8f4ee);
  border-bottom: 1px solid var(--border, #e8dfd0);
  position: sticky;
  top: var(--reader-toolbar-h, 48px);
  z-index: 12;
}
.reader-chapter-search input {
  flex: 1;
  min-width: 0;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--border, #ddd);
  border-radius: 8px;
  font-size: 0.9rem;
}
.reader-chapter-search .chapter-search-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.reader-para.chapter-search-hit .para-text {
  background: rgba(232, 93, 4, 0.12);
  border-radius: 4px;
}
.reader-para.chapter-search-active {
  outline: 2px solid var(--accent, #e85d04);
  outline-offset: 2px;
}

.reader-study-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(360px, 92vw);
  height: 100%;
  max-height: 100dvh;
  background: var(--surface, #fff);
  border-left: 1px solid var(--border, #e8dfd0);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 200;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
  pointer-events: none;
}
.reader-study-panel.open {
  transform: translateX(0);
  pointer-events: auto;
}
.reader-study-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border, #e8dfd0);
}
.reader-study-head h3 { margin: 0; font-size: 0.95rem; }
.reader-study-close {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 36px;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border, #d8cfc0);
  border-radius: 999px;
  background: var(--surface-2, #f8f4ee);
  color: var(--text, #2c2416);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
}
.reader-study-close-icon {
  font-size: 0.95rem;
  line-height: 1;
}
.reader-study-close-label { line-height: 1; }
.reader-study-foot {
  display: none;
  padding: 0.65rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border, #e8dfd0);
  background: var(--surface, #fff);
}
.reader-study-close-full {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border, #d8cfc0);
  border-radius: 10px;
  background: var(--surface-2, #f8f4ee);
  color: var(--text, #2c2416);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}
.reader-toolbar-study.active {
  background: color-mix(in srgb, var(--accent, #e85d04) 16%, var(--surface-2, #f8f4ee));
  border-color: color-mix(in srgb, var(--accent, #e85d04) 45%, var(--border, #ddd));
}
.reader-study-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border, #e8dfd0);
}
.reader-study-tabs button {
  border: 1px solid var(--border, #ddd);
  background: transparent;
  border-radius: 999px;
  padding: 0.25rem 0.6rem;
  font-size: 0.72rem;
  cursor: pointer;
}
.reader-study-tabs button.active {
  background: var(--accent, #e85d04);
  color: #fff;
  border-color: var(--accent, #e85d04);
}
.reader-study-body {
  flex: 1;
  overflow: auto;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
}
.reader-study-body ol, .reader-study-body ul { padding-left: 1.2rem; }
.study-summary-block { margin: 0.7rem 0 0.85rem; }
.study-summary-block h4 {
  margin: 0 0 0.3rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8b6914;
}
.study-summary-block li { margin: 0.28rem 0; line-height: 1.45; }
.reader-study-body .muted { font-size: 0.8rem; }
.reader-study-card {
  border: 1px solid var(--border, #e8dfd0);
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.5rem;
}
.reader-study-card strong { display: block; margin-bottom: 0.25rem; }

.reader-resume-banner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: linear-gradient(90deg, rgba(232, 93, 4, 0.08), transparent);
  border-bottom: 1px solid var(--border, #e8dfd0);
  font-size: 0.85rem;
}
.reader-resume-banner button { white-space: nowrap; }

body.reader-study-open .reader-study-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  z-index: 199;
  pointer-events: auto;
}
.reader-study-backdrop.hidden {
  display: none !important;
  pointer-events: none;
}
body.reader-tablet-split .reader-layout-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) min(340px, 38vw);
  gap: 0;
  align-items: start;
  width: 100%;
}
body.reader-tablet-split .reader-main-col {
  min-width: 0;
  max-width: 100%;
}
body.reader-tablet-split .reader-study-panel {
  position: sticky;
  top: calc(var(--topbar-h, 52px) + 0.25rem);
  height: calc(100vh - var(--topbar-h, 52px) - var(--nav-h, 56px) - 0.5rem);
  max-height: calc(100dvh - var(--topbar-h, 52px) - var(--nav-h, 56px) - 0.5rem);
  width: 100%;
  transform: none;
  box-shadow: none;
  border-left: 1px solid var(--border, #e8dfd0);
  z-index: 20;
}
body.reader-tablet-split .reader-study-panel:not(.open) { display: none; }
body.reader-tablet-split.reader-study-open .reader-study-backdrop { display: none; }
body.reader-tablet-split .reader-study-body {
  overscroll-behavior: contain;
}

.productivity-session-card,
.productivity-mission-card,
.productivity-graph-card {
  border: 1px solid var(--border, #e8dfd0);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
  background: var(--surface, #fff);
}
.productivity-mission-progress {
  height: 6px;
  background: var(--border, #e8dfd0);
  border-radius: 3px;
  overflow: hidden;
  margin-top: 0.5rem;
}
.productivity-mission-progress > span {
  display: block;
  height: 100%;
  background: var(--accent, #e85d04);
  border-radius: 3px;
}
.productivity-graph-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.5rem;
}
.productivity-graph-tags span {
  font-size: 0.72rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: rgba(232, 93, 4, 0.1);
  border: 1px solid rgba(232, 93, 4, 0.25);
}
.chapter-intel-grid {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.productivity-mission-card.mission-complete {
  border-color: rgba(232, 93, 4, 0.45);
  background: linear-gradient(180deg, rgba(232, 93, 4, 0.06), transparent);
}
.productivity-graph-links {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.8rem;
}
.productivity-graph-links li { margin-bottom: 0.25rem; }
.study-front {
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0.75rem 0;
}
.study-back {
  margin: 0.75rem 0;
  padding: 0.65rem;
  border-radius: 8px;
  background: var(--surface-2, #f8f4ee);
}

@media (max-width: 899px) {
  .reader-study-panel {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: min(72dvh, 560px);
    max-height: 72dvh;
    border-left: none;
    border-top: 1px solid var(--border, #e8dfd0);
    border-radius: 16px 16px 0 0;
    transform: translateY(100%);
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.12);
    z-index: 210;
  }
  .reader-study-panel.open { transform: translateY(0); }
  body.reader-study-open .reader-study-backdrop { z-index: 205; }
  .reader-study-foot { display: block; }
  .reader-study-head {
    padding-top: 1rem;
    cursor: grab;
    touch-action: pan-y;
  }
  .reader-study-head::before {
    content: "";
    position: absolute;
    top: 6px;
    left: 50%;
    width: 36px;
    height: 4px;
    margin-left: -18px;
    border-radius: 2px;
    background: var(--border, #ccc);
  }
  .reader-study-head { position: relative; }
}

@media (min-width: 900px) {
  body.reader-tablet-capable .reader-chapter-search { top: 52px; }
}