:root {
  --bg: #faf6f0;
  --surface: #ffffff;
  --text: #2a2118;
  --muted: #8a7b6a;
  --accent: #c9722f;
  --accent-dark: #a85a1f;
  --bubble-paco: #f1e6d8;
  --bubble-user: #c9722f;
  --bubble-user-text: #ffffff;
  --border: #e8ddd0;
  --error: #b3261e;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1712;
    --surface: #241d17;
    --text: #f2e9dd;
    --muted: #b0a08c;
    --accent: #e08a44;
    --accent-dark: #f0a05f;
    --bubble-paco: #33291f;
    --bubble-user: #c9722f;
    --bubble-user-text: #1c1712;
    --border: #3a2f24;
    --error: #ff8a80;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}

.brand-name {
  font-weight: 700;
  font-size: 18px;
}

input[type="text"] {
  font-size: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  width: 100%;
}

input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  font-size: 15px;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}

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

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

.error {
  color: var(--error);
  font-size: 13px;
  margin-top: 10px;
}

.chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-block: 8px;
}

.msg {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 15px;
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
}

.msg.paco {
  align-self: flex-start;
  background: var(--bubble-paco);
  color: var(--text);
  border-bottom-left-radius: 4px;
}

.msg.user {
  align-self: flex-end;
  background: var(--bubble-user);
  color: var(--bubble-user-text);
  border-bottom-right-radius: 4px;
}

.msg.pending {
  opacity: 0.6;
}

.msg-audio-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
}

.speak-button {
  background: transparent;
  color: var(--accent-dark);
  border: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
}

.speak-button:hover {
  background: var(--bubble-paco);
}

.speak-button:disabled {
  opacity: 0.55;
  cursor: default;
}

.speak-error {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
}

.mic-status {
  font-size: 12px;
  color: var(--muted);
  padding-block: 4px 0;
}

.mic-status.recording {
  color: var(--error);
  font-weight: 600;
}

.chat-form {
  display: flex;
  gap: 8px;
  padding-block: 12px 8px;
  border-top: 1px solid var(--border);
}

.chat-form input {
  flex: 1;
}

.mic-button {
  flex-shrink: 0;
  width: 44px;
  padding: 0;
  font-size: 18px;
  background: var(--bubble-paco);
  color: var(--text);
  border: 1px solid var(--border);
}

.mic-button:hover {
  background: var(--border);
}

.mic-button.recording {
  background: var(--error);
  color: #fff;
  border-color: var(--error);
}

.mic-button:disabled {
  opacity: 0.55;
  cursor: default;
}

.chat-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 4px;
}

.reset-button {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 13px;
  padding: 8px 12px;
}

.reset-button:hover {
  color: var(--text);
  background: var(--bubble-paco);
}

.autoplay-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}