:root {
  --bg-a: #f7f0d9;
  --bg-b: #e9d1a8;
  --card: rgba(255, 251, 241, 0.9);
  --ink: #2d2118;
  --accent: #7a4b20;
  --accent-2: #c77f2b;
  --ok: #2f6a2f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 20%, var(--bg-a) 0%, #f2e2be 35%, var(--bg-b) 100%);
}

.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: rgba(28, 18, 9, 0.72);
  backdrop-filter: blur(4px);
}

.loading-overlay.hidden {
  display: none;
}

.loading-card {
  width: min(540px, calc(100vw - 2rem));
  padding: 1.25rem;
  border-radius: 16px;
  background: rgba(255, 251, 241, 0.98);
  border: 1px solid rgba(122, 75, 32, 0.25);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

.loading-title {
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.loading-text,
.loading-note {
  color: #4b392d;
  margin-bottom: 0.7rem;
}

.loading-track {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: #ead7ba;
  border: 1px solid rgba(122, 75, 32, 0.25);
}

.loading-bar {
  width: 0%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-2), #a15f1d);
  transition: width 180ms ease;
}

.hardware-badge {
  margin: 0.6rem 0 0.2rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(122, 75, 32, 0.35);
  border-radius: 999px;
  display: inline-block;
  background: rgba(255, 246, 231, 0.9);
  color: #533924;
  font-size: 0.92rem;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  place-items: stretch;
  width: 100vw;
  margin: 0;
  padding: 0.35rem;
}

.card {
  width: 100%;
  padding: 1.5rem;
  border: 1px solid rgba(122, 75, 32, 0.3);
  border-radius: 16px;
  background: var(--card);
  box-shadow: 0 16px 32px rgba(60, 40, 20, 0.2);
}

.prayer-card {
  width: 100%;
}

.search-card {
  min-height: calc(100vh - 220px);
  display: flex;
  flex-direction: column;
}

h1 {
  margin: 0 0 0.5rem;
  color: var(--accent);
}

h2,
h3 {
  margin: 0.2rem 0 0.5rem;
  color: var(--accent);
}

.subtitle {
  margin-top: 0;
}

.edition-subtitle {
  margin: 0.2rem 0 0.5rem;
  font-style: italic;
  color: #5f4b34;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

.prayer-controls {
  margin-top: 0.7rem;
}

.slim-controls {
  margin-top: 0.4rem;
}

button {
  border: none;
  border-radius: 10px;
  padding: 0.7rem 1.1rem;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: transform 120ms ease, background-color 120ms ease;
}

button:active {
  transform: translateY(1px);
}

#startBtn {
  background: var(--accent-2);
  color: #fff8ee;
}

#stopBtn {
  background: #5f5b57;
  color: #ffffff;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.settings {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.3rem;
  margin: 0.5rem 0 1rem;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
}

.research-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 0.8rem;
  flex: 1;
  min-height: 0;
}

.left-pane,
.right-pane {
  border: 1px solid rgba(122, 75, 32, 0.2);
  border-radius: 12px;
  padding: 0.9rem;
  background: rgba(255, 253, 246, 0.72);
  min-height: 0;
}

.reference-list {
  min-height: 64px;
  border: 1px solid rgba(122, 75, 32, 0.4);
  border-radius: 10px;
  background: #fffdfa;
  padding: 0.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.reference-item {
  border: 1px solid rgba(122, 75, 32, 0.45);
  background: #fff6e7;
  color: #3c2a18;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
}

.reference-item:hover {
  background: #f9e6c8;
}

input[type="text"],
input[type="number"],
input[type="file"],
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(122, 75, 32, 0.4);
  padding: 0.65rem;
  font-family: inherit;
  background: #fffcf3;
}

input[type="range"] {
  width: 100%;
}

.status-label {
  font-weight: 600;
}

.threshold-note {
  font-size: 0.92rem;
  color: #5a4129;
  background: rgba(245, 229, 201, 0.72);
  border: 1px solid rgba(122, 75, 32, 0.25);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
}

textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  border-radius: 10px;
  border: 1px solid rgba(122, 75, 32, 0.4);
  padding: 0.7rem;
  font-family: inherit;
  line-height: 1.35;
  background: #fffdfa;
}

#deepReportBox {
  min-height: 300px;
}

#resultsBox {
  min-height: 220px;
}

#compareBox {
  min-height: 360px;
}

#chapterViewBox {
  min-height: 250px;
}

#libraryStatusBox {
  min-height: 90px;
}

#searchAnnotation,
#deepAnnotation,
#compareAnnotation {
  min-height: 100px;
}

#annotationSummaryBox {
  min-height: 190px;
}

#annotationHistoryResultsBox {
  min-height: 230px;
}

@media (min-width: 960px) {
  .research-layout {
    grid-template-columns: 5fr 1fr;
    align-items: stretch;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 0.35rem;
  }

  .card {
    padding: 1rem;
  }

  .controls {
    flex-direction: column;
  }
}