:root {
  --ink: #071d26;
  --navy: #073044;
  --teal: #0f6370;
  --teal-dark: #06404d;
  --teal-soft: #d9eff0;
  --teal-wash: #eefafa;
  --paper: #fbfaf5;
  --line: #b8d5d5;
  --soft-shadow: 0 5px 12px rgba(6, 40, 49, 0.16);
  --muted: #153039;
  --primary: var(--teal-dark);
  --primary-strong: var(--navy);
  --secondary: var(--teal);
  --ok: #197245;
  --warn: #b86313;
  --danger: #ba2f2f;
  --surface: #ffffff;
  --surface-soft: #f9fbfa;
  --field-border: #cddada;
  --fieldset-line: #d5e5e5;
  --chip-border: #d4e4e4;
  --scope-border: #cfe0e0;
  --scope-book-border: #dce9e9;
  --scope-chapter-border: #e2eded;
  --scope-action-border: #c8dada;
  --scope-action-bg: #f4faf9;
  --verse-input-border: #c8dada;
  --verse-pill-border: #d8e7e6;
  --card-border: #d6e5e5;
  --radius: 8px;
  --panel-bg: linear-gradient(180deg, rgba(255, 255, 252, 0.98), rgba(232, 247, 246, 0.96));
  --shadow: 0 10px 22px rgba(6, 40, 49, 0.18);
  color-scheme: light dark;
}

* {
  box-sizing: border-box;
}

html {
  background: #f5f5f2;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #ffffff 0%, var(--paper) 100%);
  min-height: 100vh;
}

a {
  color: inherit;
}

.site-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(8, 74, 83, 0.12);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
}

.brand {
  display: block;
  flex: 0 0 auto;
  width: 290px;
  max-width: 42vw;
}

.brand img {
  display: block;
  width: 100%;
  height: auto;
}


.primary-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 1rem;
  font-weight: 700;
}

.primary-nav a {
  border-radius: 8px;
  padding: 0.55rem 0.8rem;
  text-decoration: none;
  white-space: nowrap;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav .active {
  background: #d6eeee;
  outline: none;
}

.hero {
  position: relative;
  height: 270px;
  max-width: 1240px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 0 0 8px 8px;
  background: var(--teal-soft);
}

.hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(211, 237, 238, 0.9), rgba(205, 234, 235, 0.72) 52%, rgba(205, 234, 235, 0.52)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.2));
}

.mission-statement {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: -4.8rem auto 1.35rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 252, 0.96);
  box-shadow: var(--shadow);
  padding: 1.75rem 2rem;
  text-align: center;
}

.mission-statement h1 {
  margin: 0 0 0.85rem;
  color: #060a0d;
  font-size: 1.95rem;
  line-height: 1.08;
  text-transform: uppercase;
  letter-spacing: 0;
}

.mission-statement p {
  max-width: 760px;
  margin: 0 auto;
  color: #153039;
  font-size: 1.08rem;
  line-height: 1.55;
}

.mission-statement p + p {
  margin-top: 0.85rem;
}

.subtitle {
  margin: 0;
}

.layout {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem 2.5rem;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.35rem;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.2rem;
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
}

.controls-panel {
  grid-column: span 7;
}

.profile-panel {
  grid-column: span 5;
}

.output-panel,
.preview-panel,
.interactive-panel {
  grid-column: span 12;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

label,
legend {
  font-weight: 700;
  font-size: 0.9rem;
}

input,
select,
button {
  width: 100%;
  margin-top: 0.3rem;
  border-radius: var(--radius);
  border: 1px solid var(--field-border);
  background: var(--surface);
  padding: 0.55rem 0.65rem;
  font: inherit;
}

button {
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease,
    background-color 0.16s ease;
}

button:hover {
  transform: translateY(-1px);
}

button.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-strong);
}

button.primary:hover {
  background: var(--primary-strong);
}

button.danger {
  border-color: color-mix(in srgb, var(--danger), white 72%);
  color: var(--danger);
}

fieldset {
  margin: 1rem 0 0;
  border-radius: var(--radius);
  border: 1px dashed var(--fieldset-line);
  padding: 0.75rem;
}

.compact-fieldset {
  margin: 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chips label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--chip-border);
  background: var(--surface);
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.chips input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
}

.checkbox-row input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.profile-actions,
.output-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.status {
  min-height: 1.35rem;
  margin-bottom: 0;
  color: var(--secondary);
  font-weight: 600;
}

.status.warn {
  color: var(--warn);
}

.status.ok {
  color: var(--ok);
}

.scope-selector {
  display: block;
  min-height: 16rem;
  max-height: min(26rem, 60vh);
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--scope-border);
  border-radius: var(--radius);
  padding: 0.5rem;
  background: var(--surface);
}

.fieldset-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
}

.fieldset-header::before,
.fieldset-header::after {
  display: none;
}

.selector-mode-btn {
  width: auto;
  margin-top: 0;
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius);
  border: 1px solid var(--field-border);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: none;
}

.selector-mode-btn:hover {
  transform: none;
  box-shadow: none;
}

.selector-mode-btn.is-active {
  background: var(--teal-soft);
  border-color: var(--scope-border);
}

.selectors {
  margin-top: 0.45rem;
}

.scope-book {
  border: 1px solid var(--scope-book-border);
  border-radius: var(--radius);
  padding: 0.5rem;
  background: color-mix(in srgb, var(--surface), var(--teal-wash) 18%);
}

.scope-book + .scope-book {
  margin-top: 0.5rem;
}

.book-group {
  border: 1px solid var(--scope-book-border);
  border-radius: var(--radius);
  padding: 0.55rem 0.65rem;
}

.book-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  width: 100%;
}

.book-header input {
  margin: 0;
  width: auto;
  flex: 0 0 auto;
}

.book-name {
  flex: 1 1 auto;
  line-height: 1.2;
  white-space: nowrap;
}

.scope-chapters {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.4rem;
}

.scope-chapters.chapter-grid {
  margin-top: 0.2rem;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(68px, 1fr));
  gap: 0.4rem;
}

.scope-chapter-row {
  border: 1px solid var(--scope-chapter-border);
  border-radius: 8px;
  padding: 0.35rem 0.45rem;
}

.chapter-option {
  width: 100%;
}

.scope-chapter-row > label,
.chapter-check {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  margin: 0;
  padding: 0.28rem 0.4rem;
  border: 1px solid var(--verse-pill-border);
  border-radius: var(--radius);
  background: var(--surface);
}

.chapter-check input {
  margin: 0;
  width: auto;
}

.chapter-with-verses {
  margin-bottom: 0.1rem;
}

.chapter-header {
  margin-bottom: 0.3rem;
}

.chapter-selector-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.chapter-selector-row .chapter-header {
  flex: 1 1 auto;
}

.chapter-number {
  font-weight: 700;
}

.scope-verse-details {
  margin-top: 0.3rem;
}

.chapter-selector-row .scope-verse-details {
  margin-top: 0;
  flex: 0 0 auto;
}

.scope-verse-details > summary {
  cursor: pointer;
  list-style: none;
  font-size: 0.76rem;
  color: var(--muted);
}

.scope-verse-details > summary::-webkit-details-marker {
  display: none;
}

.scope-verse-details.is-disabled > summary {
  cursor: default;
  opacity: 0.7;
  pointer-events: none;
}

.scope-verse-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.35rem;
}

.scope-verse-actions button {
  border: 1px solid var(--scope-action-border);
  border-radius: var(--radius);
  background: var(--scope-action-bg);
  color: var(--ink);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
}

.scope-verse-range {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.68rem;
  color: var(--muted);
  font-weight: 700;
}

.scope-verse-range input {
  width: 3rem;
  margin: 0;
  padding: 0.12rem 0.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--verse-input-border);
  font-size: 0.68rem;
}

.scope-verses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 0.25rem;
  margin-top: 0.35rem;
}

.verse-grid {
  margin-top: 0.3rem;
}

.scope-verses-grid label {
  border: 1px solid var(--verse-pill-border);
  border-radius: var(--radius);
  padding: 0.2rem 0.3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.72rem;
  font-weight: 600;
}

.scope-verses-grid input[type="checkbox"] {
  margin: 0;
  width: auto;
}

.scope-empty {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}

.verse-placeholder {
  padding: 0.45rem 0.5rem;
  border: 1px dashed var(--scope-chapter-border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface), var(--teal-wash) 16%);
}

.preview-meta {
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 0.8rem;
}

.question-card {
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: var(--surface);
  box-shadow: var(--soft-shadow);
}

.question-card h3 {
  margin: 0;
  font-size: 0.95rem;
}

.question-card .meta {
  margin: 0.3rem 0 0.4rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.interactive-wrap {
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--surface);
  box-shadow: var(--soft-shadow);
}

.interactive-progress {
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.interactive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-footer {
  max-width: 1080px;
  margin: 1.3rem auto 0;
  padding: 1.1rem 1.5rem 2rem;
  border-top: 1px solid #d7dddd;
  text-align: center;
  color: #1f343b;
}

.site-footer nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  margin-bottom: 0.8rem;
}

.site-footer p {
  margin: 0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #a0d8ef;
    --navy: #2e7f91;
    --teal: #63c7cf;
    --teal-dark: #3ca8b2;
    --teal-soft: #0f2b34;
    --teal-wash: #0b2129;
    --paper: #091117;
    --line: #294a53;
    --muted: #8fc4d8;
    --ok: #68c18e;
    --warn: #e4af65;
    --danger: #f08d8d;
    --surface: #0a1921;
    --surface-soft: #0d1f28;
    --field-border: #2f4e57;
    --fieldset-line: #33545d;
    --chip-border: #355760;
    --scope-border: #2f4e57;
    --scope-book-border: #31525b;
    --scope-chapter-border: #355760;
    --scope-action-border: #3a5c65;
    --scope-action-bg: #102733;
    --verse-input-border: #3a5c65;
    --verse-pill-border: #34565f;
    --card-border: #2f4e57;
    --panel-bg: linear-gradient(180deg, rgba(9, 25, 32, 0.96), rgba(10, 29, 35, 0.95));
    --shadow: 0 12px 24px rgba(0, 0, 0, 0.45);
    --soft-shadow: 0 8px 18px rgba(0, 0, 0, 0.36);
  }

  html {
    background: #060c10;
  }

  body {
    background: linear-gradient(180deg, #0a1319 0%, #091117 100%);
  }

  .site-header {
    background: rgba(7, 16, 22, 0.94);
    border-bottom: 1px solid rgba(99, 199, 207, 0.2);
  }

  .primary-nav a:hover,
  .primary-nav a:focus-visible,
  .primary-nav .active {
    background: #17343e;
  }

  .hero {
    background: #0f2a33;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(8, 28, 36, 0.84), rgba(8, 28, 36, 0.7) 52%, rgba(8, 28, 36, 0.5)),
      linear-gradient(180deg, rgba(0, 0, 0, 0.22), rgba(0, 0, 0, 0.38));
  }

  .mission-statement {
    border: 1px solid var(--line);
    background: rgba(9, 23, 30, 0.94);
  }

  .mission-statement h1,
  .mission-statement p {
    color: #a0d8ef;
  }

  .site-footer {
    color: #a0d8ef;
    border-top: 1px solid #29454e;
  }
}

@media (max-width: 980px) {
  .controls-panel,
  .profile-panel,
  .output-panel,
  .preview-panel,
  .interactive-panel {
    grid-column: span 12;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
  }

  .brand {
    width: 260px;
    max-width: 78vw;
  }

  .primary-nav {
    justify-content: flex-start;
  }

  .hero {
    height: 235px;
  }

  .mission-statement {
    max-width: calc(100% - 3rem);
    margin-top: -4.1rem;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0.85rem 1rem;
  }

  .primary-nav {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
    overflow-x: visible;
    padding-bottom: 0.25rem;
    font-size: 0.93rem;
  }

  .primary-nav a {
    padding: 0.5rem 0.68rem;
  }

  .hero {
    height: 180px;
    border-radius: 0;
  }

  .mission-statement {
    max-width: none;
    margin: -2.3rem 0.9rem 1rem;
    padding: 1.2rem 1.05rem;
  }

  .mission-statement h1 {
    font-size: 1.45rem;
  }

  .mission-statement p {
    font-size: 0.98rem;
    line-height: 1.48;
  }

  .layout {
    gap: 1rem;
    padding: 0 0.9rem 1.7rem;
  }
}

@media (max-width: 620px) {
  .grid-2,
  .profile-actions,
  .output-actions {
    grid-template-columns: 1fr;
  }
}