@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  --bg-deep: #f4f1ea;
  --glass: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(47, 72, 66, 0.14);
  --accent-glow: #5f7d72;
  --text-primary: #1c2a2a;
  --text-secondary: #5f7d72;
  --text-muted: rgba(28, 42, 42, 0.55);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  overflow-x: hidden;
}

.canvas-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 20% 18%, rgba(138, 163, 153, 0.22) 0%, transparent 46%),
    radial-gradient(circle at 82% 84%, rgba(192, 132, 87, 0.14) 0%, transparent 46%);
}

.page-shell {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 20px 20px 48px;
}

.topbar {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.top-brand {
  order: -1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
}

.top-brand-logo { display: none; }

.top-brand-text {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.45rem;
  letter-spacing: 0.5px;
  font-weight: 500;
  color: #2f4842;
}

.top-brand-tail {
  color: #c08457;
}

.home-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
}

.home-link:hover {
  color: var(--text-primary);
}

.lang-wrap {
  position: relative;
}

.lang-button {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
}

.lang-arrow {
  font-size: 12px;
}

.lang-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 150px;
  border: 1px solid var(--glass-border);
  background: #ffffff;
  border-radius: 12px;
  padding: 8px;
  display: none;
  box-shadow: 0 16px 40px -20px rgba(28, 42, 42, 0.4);
  gap: 6px;
}

.lang-menu.is-open {
  display: grid;
}

.lang-menu[hidden] {
  display: none !important;
}

.lang-item {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

.lang-item:hover,
.lang-item.is-active {
  background: rgba(255, 255, 255, 0.66);
  color: var(--accent-glow);
}

.main-wrap {
  margin-top: 24px;
  display: grid;
  gap: 24px;
}

.hero {
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 12px;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-glow);
}

.title {
  margin: 0;
  font-size: clamp(32px, 7vw, 52px);
  letter-spacing: -1.4px;
}

.text-gradient {
  background: linear-gradient(to bottom, #2f4842, #5f7d72);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-label {
  margin: 0 0 12px;
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 600;
}

.sample-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sample-pill {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text-secondary);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.sample-pill:hover {
  color: var(--text-primary);
  border-color: rgba(47, 72, 66, 0.3);
}

.dataset-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.dataset-pill {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 600;
}

.dataset-pill:hover {
  color: var(--text-primary);
  border-color: rgba(47, 72, 66, 0.3);
}

.dataset-pill.is-active {
  color: #fff;
  background: var(--accent-glow);
  border-color: var(--accent-glow);
}

.input-shell {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: 22px;
  padding: 10px;
}

.query-input {
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-primary);
  font-size: 17px;
  padding: 10px 12px;
}

.query-input::placeholder {
  color: var(--text-secondary);
}

.icon-button {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.66);
  color: var(--text-primary);
  cursor: pointer;
}

.icon-button.is-recording {
  border-color: rgba(239, 68, 68, 0.7);
  color: #ef4444;
}

.actions-row {
  margin-top: 12px;
  display: flex;
  justify-content: flex-end;
}

.ask-button {
  border: 0;
  border-radius: 999px;
  background: var(--accent-glow);
  color: #fff;
  padding: 10px 18px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 16px rgba(95, 125, 114, 0.3);
}

.ask-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.results {
  display: grid;
  gap: 16px;
}

.glass-card {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: 20px;
  padding: 18px;
}

.card-title {
  margin: 0 0 12px;
  font-size: 20px;
}

.answer-body {
  color: var(--text-secondary);
  line-height: 1.65;
}

.answer-body p {
  margin: 0 0 10px;
}

.answer-body ul {
  margin: 8px 0 0 20px;
}

.sources-list {
  display: grid;
  gap: 10px;
}

.source-item {
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 12px;
}

.source-title {
  margin: 0 0 6px;
  font-size: 15px;
}

.source-url {
  color: var(--accent-glow);
  text-decoration: none;
  word-break: break-word;
  font-size: 13px;
}

.source-meta {
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 12px;
}

.voice-row {
  display: flex;
  gap: 10px;
}

.voice-action {
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.66);
  color: var(--text-primary);
  border-radius: 999px;
  padding: 9px 16px;
  cursor: pointer;
}

.voice-action.muted {
  color: var(--text-secondary);
}

.status-message {
  min-height: 22px;
  color: var(--text-secondary);
  font-size: 14px;
}

.chooser-subtitle {
  margin: 0;
  text-align: center;
}

.chooser-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.chooser-card {
  border: 1px solid var(--glass-border);
  background: var(--glass);
  border-radius: 18px;
  padding: 20px;
  text-decoration: none;
  color: var(--text-primary);
  display: grid;
  gap: 10px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.chooser-card:hover {
  transform: translateY(-2px);
  border-color: rgba(47, 72, 66, 0.3);
}

.chooser-card h2 {
  margin: 0;
  font-size: 22px;
}

.chooser-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.5;
}

.chooser-cta {
  color: var(--accent-glow);
  font-weight: 600;
}

@media (max-width: 700px) {
  .page-shell {
    padding: 14px 14px 30px;
  }

  .top-brand-logo {
    width: 28px;
    height: 28px;
  }

  .top-brand-text {
    font-size: 16px;
    letter-spacing: 0.1em;
  }

  .query-input {
    font-size: 16px;
  }

  .sample-list {
    display: grid;
    grid-template-columns: 1fr;
  }

  .chooser-grid {
    grid-template-columns: 1fr;
  }
}