/* ==========================================================================
   Dubina Deep Reader — Full-screen Kat layer
   Requirements: 3.1, 3.2, 3.3, 3.4, 10.1, 10.2, 10.3, 11.3, 11.4
   ========================================================================== */

/* --- Kat Layer (full-screen overlay) --- */

.dubina-reader {
  position: fixed;
  inset: 0;
  z-index: 1500;
  background: #F9F7F2;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* --- Header --- */

.dubina-reader__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  flex-shrink: 0;
}

.dubina-reader__back,
.dubina-reader__close {
  min-width: 44px;
  min-height: 44px;
  display: grid;
  place-items: center;
  border: none;
  background: transparent;
  font-size: 1.25rem;
  color: var(--ink);
  cursor: pointer;
  border-radius: 8px;
}

.dubina-reader__back:hover,
.dubina-reader__close:hover {
  background: rgba(31, 42, 47, 0.08);
}

/* --- Progress Dots --- */

.dubina-reader__dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.dubina-reader__dot {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: none;
  background: transparent;
  padding: 0;
  cursor: default;
}

.dubina-reader__dot::after {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--muted, #ccc);
  background: transparent;
}

.dubina-reader__dot.is-read {
  cursor: pointer;
}

.dubina-reader__dot.is-read::after {
  border-color: var(--accent-primary);
  background: var(--accent-primary);
}

.dubina-reader__dot.is-current::after {
  border-color: var(--accent-primary);
  background: var(--accent-light, #D1FAE5);
  box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

/* --- Dot Pulse Animation --- */

@keyframes dot-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.4); }
  100% { transform: scale(1); }
}

.dubina-reader__dot.is-pulsing::after {
  animation: dot-pulse 300ms ease;
}

.dubina-reader__dots-check {
  font-size: 0.875rem;
  color: var(--accent-primary);
  line-height: 1;
  display: flex;
  align-items: center;
}

/* --- Body (scrollable reading area) --- */

.dubina-reader__body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px 16px 24px;
  font-family: 'Noto Serif', serif;
  font-size: 16px;
  line-height: 1.65;
}

.dubina-reader__body p {
  margin-bottom: 16px;
}

.dubina-reader__content {
  max-width: 65ch;
  margin: 0 auto;
  font-family: "Noto Serif", serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  text-align: left;
  transition: opacity 300ms ease;
}

.dubina-reader__content.is-fading {
  opacity: 0;
}

/* --- Drop Cap --- */

.dubina-reader__content > p:first-of-type::first-letter {
  float: left;
  font-size: 2.8em;
  line-height: 0.85;
  margin: 0.05em 0.08em 0 0;
  color: var(--accent-primary);
  font-weight: 700;
  font-family: "Noto Serif", serif;
}

/* --- Sticky Footer --- */

.dubina-reader__footer {
  flex-shrink: 0;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: #F9F7F2;
  box-shadow: 0 -1px 8px rgba(31, 42, 47, 0.06);
}

.dubina-reader__next {
  display: block;
  width: 100%;
  height: 52px;
  border: none;
  border-radius: 999px;
  background: var(--accent-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.dubina-reader__next:active {
  background: var(--accent-dark);
}

/* --- Connector Zone (legacy statement + question) --- */

.dubina-reader__connector-statement {
  font-family: "Noto Serif", serif;
  font-size: 1.1rem;
  font-style: italic;
  color: var(--muted);
  margin: 0 0 8px;
}

.dubina-reader__connector-question {
  font-family: "Noto Serif", serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

/* --- Completion Screen --- */

.dubina-reader__completion {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 65ch;
  margin: 0 auto;
  padding: 32px 16px;
  text-align: center;
}

.dubina-reader__completion-title {
  font-family: "Noto Serif", serif;
  font-size: var(--text-2xl);
  margin: 0 0 8px;
}

.dubina-reader__completion-subtitle {
  color: var(--muted);
  margin: 0 0 24px;
}

/* --- Cheatsheet Card --- */

.dubina-reader__cheatsheet {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: left;
  margin-bottom: 24px;
  border: 1px solid var(--outline);
}

.dubina-reader__cheatsheet h3 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 700;
}

.dubina-reader__cheatsheet h4 {
  margin: 12px 0 6px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.dubina-reader__cheatsheet ul {
  margin: 0;
  padding-left: 20px;
  color: var(--ink);
  line-height: 1.6;
}

.dubina-reader__cheatsheet-section + .dubina-reader__cheatsheet-section {
  border-top: 1px solid var(--outline);
  padding-top: 8px;
}

/* --- Share & Done Buttons --- */

.dubina-reader__share,
.dubina-reader__done {
  display: block;
  width: 100%;
  height: 52px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 8px;
}

.dubina-reader__share {
  background: transparent;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
}

.dubina-reader__done {
  background: var(--accent-primary);
  border: none;
  color: #fff;
}

/* --- Coachmark Overlay --- */

.dubina-coachmark {
  position: fixed;
  inset: 0;
  z-index: 1600;
  background: rgba(0, 0, 0, 0.5);
  display: grid;
  place-items: center;
  padding: 24px;
}

.dubina-coachmark__card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px 24px;
  max-width: 360px;
  text-align: center;
}

.dubina-coachmark__card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.dubina-coachmark__card p {
  margin: 0 0 20px;
  color: var(--muted);
  line-height: 1.5;
}

.dubina-coachmark__dismiss {
  min-width: 44px;
  min-height: 44px;
  border: none;
  border-radius: 12px;
  background: var(--accent-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0 24px;
}

/* --- Library --- */

.dubina-library__card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--card-bg, #fff);
  border-radius: 12px;
  margin: 0 var(--space-normal, 16px);
  cursor: pointer;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}

.dubina-library__card:active {
  opacity: 0.7;
}

.dubina-library__icon {
  font-size: 24px;
  flex-shrink: 0;
}

.dubina-library__info {
  flex: 1;
  min-width: 0;
}

.dubina-library__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary, #1a1a1a);
}

.dubina-library__dots {
  display: flex;
  gap: 5px;
  margin-top: 4px;
}

.dubina-library__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted, #ccc);
}

.dubina-library__dot.is-filled {
  background: var(--accent-primary, #8B6F47);
}

.dubina-library__error {
  text-align: center;
  color: var(--muted);
  padding: 24px;
}

/* --- Title --- */

.dubina-reader__title {
  font-family: "Noto Serif", serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 16px;
  line-height: 1.3;
}

.dubina-reader__meta {
  margin: -6px 0 18px;
  font-family: "Noto Sans", sans-serif;
  font-size: 0.8125rem;
  color: var(--muted);
}

.dubina-reader__questions {
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid rgba(31, 42, 47, 0.1);
  border-radius: 12px;
  background: #fff;
}

.dubina-reader__questions-title {
  margin: 0 0 8px;
  font-family: "Noto Sans", sans-serif;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.dubina-reader__questions-list {
  margin: 0;
  padding-left: 18px;
  color: var(--ink);
}

.dubina-reader__questions-list li + li {
  margin-top: 6px;
}

.dubina-reader__body h2 {
  font-size: 18px;
}

.dubina-reader__body h3 {
  font-size: 16px;
}

.dubina-reader__body blockquote {
  font-size: 15px;
  font-style: italic;
  border-left: 3px solid var(--accent-primary);
  padding-left: 12px;
  margin: 16px 0;
}

/* --- Context Header --- */

.dubina-reader__context-header {
  font-family: "Noto Sans", sans-serif;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: left;
  margin-bottom: 16px;
}

/* --- Emoji Icon (per-perspective) --- */

.dubina-reader__emoji {
  font-size: 2.5rem;
  text-align: center;
  margin: 0 0 12px;
  line-height: 1;
}

/* --- Contextual Card --- */

.dubina-reader__card {
  background: #fff;
  border-left: 3px solid var(--liturgical, var(--accent-primary));
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 24px;
  box-shadow: 0 1px 4px rgba(31, 42, 47, 0.06);
}

.dubina-reader__card-header {
  font-family: "Noto Sans", sans-serif;
  font-size: 0.6875rem;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.dubina-reader__card-text {
  font-family: "Noto Serif", serif;
  font-size: 0.9375rem;
  font-style: italic;
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 10px;
}

.dubina-reader__card-source {
  font-family: "Noto Sans", sans-serif;
  font-size: 0.8125rem;
  color: var(--muted);
  text-align: right;
  opacity: 0.7;
}

/* --- Connector Sentence --- */

.dubina-reader__connector {
  font-family: "Noto Serif", serif;
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--accent-primary);
  text-align: center;
  padding: 28px 16px 8px;
  max-width: 65ch;
  margin: 0 auto;
  opacity: 0.85;
}

/* --- Content always top-aligned for reading steps --- */

/* --- Intro Screen --- */

.dubina-reader__intro {
  position: fixed;
  inset: 0;
  z-index: 1700;
  background: #F9F7F2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.dubina-reader__intro-content {
  max-width: 340px;
  text-align: center;
}

.dubina-reader__intro-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  line-height: 1;
}

.dubina-reader__intro-title {
  font-family: "Noto Serif", serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 20px;
  line-height: 1.4;
}

.dubina-reader__intro-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px;
  text-align: left;
  line-height: 2;
  font-size: 1rem;
  color: var(--ink);
}

.dubina-reader__intro-list li {
  padding: 2px 0;
}

.dubina-reader__intro-note {
  font-size: 0.875rem;
  color: var(--muted);
  font-style: italic;
  margin: 0 0 28px;
}

.dubina-reader__intro-btn {
  display: block;
  width: 100%;
  height: 52px;
  border: none;
  border-radius: 999px;
  background: var(--accent-primary);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.dubina-reader__intro-btn:active {
  background: var(--accent-dark);
}

/* --- Completion Screen (enriched) --- */

.dubina-reader__completion-icon {
  font-size: 3rem;
  text-align: center;
  margin-bottom: 12px;
  line-height: 1;
}

.dubina-reader__completion-card {
  background: #FFF8E7;
  border-radius: 12px;
  padding: 20px;
  margin: 0 0 32px;
}

.dubina-reader__completion-takeaway {
  font-family: "Noto Serif", serif;
  font-size: 1rem;
  font-style: italic;
  text-align: center;
  line-height: 1.7;
  color: var(--ink);
  margin: 0;
}

.dubina-reader__completion-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.dubina-reader__completion-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  height: 52px;
  border: 1.5px solid var(--accent-primary);
  border-radius: 999px;
  background: transparent;
  color: var(--accent-primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}

.dubina-reader__completion-btn:active {
  background: var(--accent-light);
}

.dubina-reader__completion-btn--primary {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
  height: 52px;
  border-radius: 999px;
}

.dubina-reader__completion-btn--primary:active {
  background: var(--accent-dark);
}

/* --- Reduced Motion --- */

@media (prefers-reduced-motion: reduce) {
  .dubina-reader__content {
    transition: none;
  }
  .dubina-reader__dot.is-pulsing::after {
    animation: none;
  }
  .dubina-reader__intro {
    transition: none;
  }
}