:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-soft: #fbfdff;
  --ink: #1f2b3a;
  --muted: #68778c;
  --line: #d8e1ec;
  --accent: #1e7be6;
  --accent-deep: #155fb5;
  --accent-soft: #e8f1fc;
  --gold: #f1cf6e;
  --gold-soft: #faf1cf;
  --gold-ink: #6a5720;
  --shadow: 0 14px 32px rgba(19, 54, 108, 0.08);
  font-family: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(30, 123, 230, 0.08), rgba(30, 123, 230, 0) 180px),
    var(--bg);
}

body[data-theme="dark"] {
  --bg: #0f1723;
  --panel: #162131;
  --panel-soft: #1b2a40;
  --ink: #edf3fb;
  --muted: #b5c2d6;
  --line: #2c3d56;
  --accent: #64a8ff;
  --accent-deep: #9ec8ff;
  --accent-soft: #213754;
  --gold: #f1cf6e;
  --gold-soft: #3a311b;
  --gold-ink: #f6dea0;
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.28);
}

.is-loading {
  overflow: hidden;
}

.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(30, 123, 230, 0.08), rgba(30, 123, 230, 0) 220px),
    var(--bg);
  transition: opacity 220ms ease;
}

.loading-screen.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-logo-wrap {
  display: grid;
  justify-items: center;
  gap: 18px;
}

.loading-logo-stack {
  position: relative;
  width: min(42vw, 220px);
}

.loading-logo {
  display: block;
  width: 100%;
  height: auto;
}

.loading-logo-base {
  filter: grayscale(1) brightness(1.25) contrast(0.78);
  opacity: 0.9;
}

.loading-logo-fill-mask {
  position: absolute;
  inset: 0;
  overflow: hidden;
  clip-path: inset(calc(100% - var(--loading-fill, 0%)) 0 0 0);
  transition: clip-path 180ms linear;
}

.loading-text {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.app-shell {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

.hero {
  padding: 12px 4px 28px;
}

.hero-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-logo {
  width: 88px;
  height: auto;
  flex: 0 0 auto;
  filter: drop-shadow(0 8px 14px rgba(21, 95, 181, 0.14));
  opacity: 1;
  transition: opacity 180ms ease;
}

.is-loading .hero-logo {
  opacity: 0;
}

.eyebrow {
  margin: 0;
  color: var(--accent-deep);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.7rem);
  line-height: 1.02;
  color: var(--ink);
}

.lede {
  max-width: 760px;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
}

.hero-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-meta a {
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: none;
}

.hero-meta a:hover {
  text-decoration: underline;
}

.chat-panel {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  border-radius: 12px;
  overflow: hidden;
}

.chat-log {
  max-height: 60vh;
  overflow-y: auto;
  padding: 24px;
  display: grid;
  gap: 16px;
  background: var(--panel-soft);
}

.message {
  max-width: 880px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  background: var(--panel);
}

.message-label {
  margin-bottom: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.message p {
  margin: 0 0 12px;
  line-height: 1.6;
}

.message p:last-child {
  margin-bottom: 0;
}

.message-user {
  margin-left: auto;
  background: var(--panel-soft);
}

.composer {
  padding: 20px;
  background: var(--panel);
  border-top: 1px solid var(--line);
}

.composer-options {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 12px;
}

.composer-type {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.composer-type select {
  min-width: 180px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  font: inherit;
  color: var(--ink);
  background: var(--panel-soft);
}

.composer-type select:focus {
  outline: 2px solid rgba(30, 123, 230, 0.18);
  border-color: #8ebbf1;
}

.composer textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 16px;
  font: inherit;
  background: var(--panel-soft);
  color: var(--ink);
}

.composer textarea:focus,
.composer textarea:focus {
  outline: 2px solid rgba(30, 123, 230, 0.18);
  border-color: #8ebbf1;
}

.composer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
}

.composer-note,
.build-meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.reasoning-note {
  color: var(--muted);
  font-size: 0.92rem;
  font-style: italic;
}

.thinking-indicator {
  color: var(--muted);
  font-style: italic;
}

.thinking-dots::after {
  content: "...";
  display: inline-block;
  width: 1.2em;
  overflow: hidden;
  vertical-align: bottom;
}

.source-note {
  color: var(--muted);
  font-size: 0.88rem;
}

.scripture-refs {
  color: var(--muted);
  font-size: 0.82rem;
  font-style: italic;
}

.supplemental-block {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.supplemental-title {
  color: var(--accent);
  font-weight: 700;
}

button {
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  font: inherit;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: none;
}

.theme-toggle:hover {
  background: var(--panel-soft);
}

.theme-toggle::before,
.theme-toggle::after {
  content: "";
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 16px 16px;
  opacity: 0.55;
}

.theme-toggle::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2368778c' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='4.5'/%3E%3Cpath d='M12 1.75v3.1M12 19.15v3.1M4.75 4.75l2.2 2.2M17.05 17.05l2.2 2.2M1.75 12h3.1M19.15 12h3.1M4.75 19.25l2.2-2.2M17.05 6.95l2.2-2.2'/%3E%3C/svg%3E");
}

.theme-toggle::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%2368778c' d='M14.7 2.35a8.95 8.95 0 1 0 6.95 13.85A9.75 9.75 0 0 1 14.7 2.35Z'/%3E%3C/svg%3E");
}

.theme-toggle-track {
  position: relative;
  width: 40px;
  height: 22px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  flex: 0 0 auto;
}

.theme-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--accent);
  transition: transform 180ms ease;
}

body[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(18px);
}

.theme-icon {
  display: none;
}

.theme-toggle-label {
  display: none !important;
}

body[data-theme="light"] .theme-toggle::before,
body[data-theme="dark"] .theme-toggle::after {
  opacity: 1;
}

body[data-theme="light"] .theme-toggle::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231e7be6' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='4.5'/%3E%3Cpath d='M12 1.75v3.1M12 19.15v3.1M4.75 4.75l2.2 2.2M17.05 17.05l2.2 2.2M1.75 12h3.1M19.15 12h3.1M4.75 19.25l2.2-2.2M17.05 6.95l2.2-2.2'/%3E%3C/svg%3E");
}

body[data-theme="dark"] .theme-toggle::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%2364a8ff' d='M14.7 2.35a8.95 8.95 0 1 0 6.95 13.85A9.75 9.75 0 0 1 14.7 2.35Z'/%3E%3C/svg%3E");
}

button:hover {
  background: var(--accent-deep);
}

.citations {
  margin: 12px 0 0;
  padding-left: 18px;
}

.citations-panel {
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  padding: 10px 14px 14px;
}

.citations-panel summary {
  cursor: pointer;
  color: var(--accent-deep);
  font-weight: 700;
}

.citations li {
  margin-bottom: 14px;
}

.citations a {
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: none;
}

.citations a:hover {
  text-decoration: underline;
}

.source-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.source-chip {
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid #e5d39a;
  background: var(--gold-soft);
  font-size: 0.88rem;
  color: var(--gold-ink);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 20px, 1080px);
    padding-top: 28px;
  }

  .chat-log {
    order: 2;
    max-height: none;
    min-height: 36vh;
    padding: 16px;
  }

  .hero-brand {
    align-items: flex-start;
  }

  .hero-topline {
    flex-direction: column;
    align-items: stretch;
    margin-bottom: 16px;
  }

  .hero-logo {
    width: 60px;
  }

  .composer {
    order: 1;
    position: sticky;
    top: 0;
    z-index: 3;
    padding: 16px;
    border-top: 0;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 18px rgba(19, 54, 108, 0.08);
  }

  body.has-started-chat .chat-log {
    order: 1;
  }

  body.has-started-chat .composer {
    order: 2;
    position: static;
    border-top: 1px solid var(--line);
    border-bottom: 0;
    box-shadow: none;
  }

  .composer-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .composer textarea {
    min-height: 120px;
    font-size: 16px;
  }

  .composer-type select {
    min-width: 100%;
  }

  .theme-toggle {
    width: fit-content;
  }

  .loading-logo-stack {
    width: min(54vw, 180px);
  }
}