:root {
  --tc-bg: #F5F8F9;
  --tc-surface: #FFFFFF;
  --tc-sea-mist: #EAF1F3;
  --tc-ocean: #557C89;
  --tc-deep: #355A67;
  --tc-sea-glass: #AFC8CC;
  --tc-pale: #DCE9EC;
  --tc-border: #C8D7DA;
  --tc-border-strong: #7FA1AA;
  --tc-divider: #D7E2E4;
  --tc-text: #293A40;
  --tc-secondary: #66777C;
  --tc-muted: #75878C;
  --tc-dark: #344B53;
  --tc-on-dark: #F7FAFA;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--tc-bg);
  color: var(--tc-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.45;
}

body {
  padding-top: var(--safe-top);
  padding-bottom: calc(4.4rem + var(--safe-bottom));
}

.app-header {
  padding: 0.85rem 1rem 0.55rem;
  background: var(--tc-sea-mist);
  border-bottom: 1px solid var(--tc-border);
}

.clock-time { font-size: 1.7rem; font-weight: 700; color: var(--tc-deep); }
.clock-date, .greeting { margin: 0.15rem 0 0; color: var(--tc-secondary); }
.principle { margin: 0.35rem 0 0; font-size: 0.88rem; color: var(--tc-muted); }

.view { display: none; padding: 0.9rem 1rem 1.4rem; }
.view.is-active { display: block; }

.message {
  background: var(--tc-surface);
  border: 1px solid var(--tc-border);
  border-radius: 14px;
  padding: 1.85rem 1.4rem;
  margin: 0 0 0.8rem;
  min-height: 8.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: visible;
}
.message p {
  margin: 0 0 0.7rem;
  line-height: 1.75;
  padding: 0.2rem 0;
  overflow: visible;
}
.message p:last-child { margin-bottom: 0; }

.message-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 0.8rem;
}
.message-row .message {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
}
#companion-ok-btn {
  flex: 0 0 auto;
  white-space: nowrap;
}

.choices, .mood-row, .quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0 0 0.8rem;
}

.btn, .choice, .mood-btn, .tile, .nav-btn {
  min-height: 44px;
  min-width: 44px;
  border-radius: 10px;
  border: 1px solid var(--tc-border-strong);
  background: var(--tc-surface);
  color: var(--tc-deep);
  font: inherit;
  font-weight: 650;
  padding: 0.55rem 0.8rem;
  cursor: pointer;
}

.btn.primary, .choice.primary {
  background: var(--tc-ocean);
  color: #fff;
  border-color: var(--tc-ocean);
}

.btn:focus-visible, .choice:focus-visible, .mood-btn:focus-visible, .tile:focus-visible, .nav-btn:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--tc-sea-glass);
  outline-offset: 2px;
}

.mood-btn { flex: 1 1 28%; display: grid; place-items: center; gap: 0.1rem; }
.mood-btn span { font-size: 0.78rem; }

.conditions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin-bottom: 0.9rem;
}

.tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  min-height: 76px;
  background: var(--tc-pale);
}
.tile.is-active { border-color: var(--tc-deep); background: var(--tc-sea-glass); }
.tile img { width: 28px; height: 28px; }

.write-box textarea, input, select {
  width: 100%;
  border: 1px solid var(--tc-border);
  border-radius: 10px;
  padding: 0.7rem;
  font: inherit;
  background: var(--tc-surface);
  color: var(--tc-text);
}

.response-set {
  border: 1px solid var(--tc-border-strong);
  border-radius: 14px;
  margin: 0 0 0.8rem;
  padding: 0.85rem 1rem 1rem;
  background: var(--tc-surface);
  min-width: 0;
}
.response-set legend {
  padding: 0 0.45rem;
  font-weight: 650;
  color: var(--tc-deep);
}
.response-set textarea {
  margin-top: 0.15rem;
}

#anonymous-preview {
  max-height: 18rem;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: var(--tc-surface-secondary);
  border-radius: 8px;
  padding: 0.75rem;
  font-size: 0.78rem;
}
.response-hint {
  margin: 0.7rem 0 0;
  font-size: 0.88rem;
  color: var(--tc-secondary);
}

.write-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; align-items: center; }
.status { color: var(--tc-secondary); min-height: 1.3em; }

.card {
  background: var(--tc-surface);
  border: 1px solid var(--tc-border);
  border-radius: 12px;
  padding: 0.8rem;
  margin-bottom: 0.65rem;
}
.card h3 { margin: 0 0 0.3rem; font-size: 0.95rem; color: var(--tc-deep); }
.card p { margin: 0; }
.card-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.5rem; }

.filters { display: grid; gap: 0.5rem; margin-bottom: 0.8rem; }

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--tc-dark);
  padding: 0.25rem 0.25rem calc(0.25rem + var(--safe-bottom));
  z-index: 20;
}

.nav-btn {
  background: transparent;
  color: var(--tc-on-dark);
  border: 0;
  border-radius: 8px;
  font-size: 0.82rem;
}
.nav-btn.is-active { background: #3f5b64; }

.notice {
  background: var(--tc-sea-mist);
  border: 1px solid var(--tc-border);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  color: var(--tc-secondary);
}

.hidden { display: none !important; }

@media (min-width: 720px) {
  .app-shell { max-width: 920px; margin: 0 auto; }
  .conditions { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .tablet-split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1rem; }
}

@media (min-width: 1080px) {
  .app-shell { max-width: 1100px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}