/* calculator.css — natural-language calculator page.
   Uses the site theme variables so dark mode comes for free. */

.calc-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 14px;
  padding: 1.5rem;
  max-width: 760px;
  box-shadow: 0 2px 12px rgba(3, 7, 30, 0.05);
}

.calc-input-row {
  display: flex;
  gap: 0.75rem;
}

.calc-input-row input {
  flex: 1;
  min-width: 0;
  padding: 0.85rem 1rem;
  font-size: 1.05rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  transition: var(--transition-theme);
}

.calc-input-row input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 22%, transparent);
}

.calc-input-row input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.75;
}

.calc-mic {
  flex: 0 0 auto;
  width: 3.2rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-theme);
}

.calc-mic[hidden] {
  display: none;
}

.calc-mic:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.calc-mic.listening {
  border-color: #DA121A;
  color: #DA121A;
  animation: mic-pulse 1.2s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(218, 18, 26, 0.35); }
  50% { box-shadow: 0 0 0 8px rgba(218, 18, 26, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .calc-mic.listening { animation: none; }
}

.calc-result {
  margin-top: 1.25rem;
  min-height: 5.75rem;
  padding: 1rem 1.1rem;
  background: var(--color-card-bg-alt);
  border: 1px solid var(--color-card-border);
  border-radius: 10px;
}

.calc-interpretation {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
  word-break: break-word;
}

.calc-value {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--color-text);
  word-break: break-word;
  line-height: 1.25;
}

.calc-value.calc-error {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-danger-text);
}

.calc-value.calc-idle {
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.calc-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.1rem;
}

.calc-examples-label {
  width: 100%;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.1rem;
}

.calc-chip {
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition-theme), transform 0.12s ease;
}

.calc-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.calc-capabilities {
  margin-top: 1.1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.calc-history-wrap {
  max-width: 760px;
  margin-top: 2rem;
}

.calc-history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.calc-history-head h3 {
  margin: 0;
}

.calc-clear {
  font-family: inherit;
  font-size: 0.85rem;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-muted);
  padding: 0.35rem 0.8rem;
  cursor: pointer;
  transition: var(--transition-theme);
}

.calc-clear:hover {
  color: var(--color-danger-text);
  border-color: var(--color-danger);
}

.calc-history {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-history li button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  text-align: left;
  font-family: inherit;
  padding: 0.7rem 1rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition-theme);
}

.calc-history li button:hover {
  border-color: var(--color-accent);
}

.calc-history .hist-q {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  word-break: break-word;
}

.calc-history .hist-a {
  color: var(--color-text);
  font-weight: 600;
  white-space: nowrap;
}

.calc-history-empty {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 0.5rem 0;
}

@media (max-width: 600px) {
  .calc-input-row {
    flex-direction: column;
  }
  .calc-value {
    font-size: 1.5rem;
  }
}