:root {
  --loca-blue: #0b5d8f;
  --loca-blue-dark: #073f61;
  --loca-sand: #f6efe4;
  --loca-ink: #1c2b33;
  --loca-muted: #5b6b73;
  --loca-card-bg: #ffffff;
  --loca-border: #dfe6ea;
  --loca-error: #b3261e;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--loca-sand);
  color: var(--loca-ink);
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.06);
}

#app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: var(--loca-blue);
  color: #fff;
  flex-wrap: wrap;
}

#brand { display: flex; flex-direction: column; line-height: 1.2; }
#brand-mark { font-size: 20px; font-weight: 700; letter-spacing: 0.3px; }
#brand-tag { font-size: 11px; opacity: 0.85; }

#header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

#lang-label { font-size: 12px; opacity: 0.85; }

#lang-select {
  padding: 6px 8px;
  border-radius: 6px;
  border: none;
  font-size: 13px;
}

#locate-btn {
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 13px;
  cursor: pointer;
}
#locate-btn:hover { background: rgba(255, 255, 255, 0.22); }
#locate-btn[data-active="true"] {
  background: #fff;
  color: var(--loca-blue-dark);
}

#location-banner {
  padding: 8px 16px;
  font-size: 12.5px;
  background: #eef6fb;
  color: var(--loca-blue-dark);
  border-bottom: 1px solid var(--loca-border);
}
#location-banner.error { background: #fdecea; color: var(--loca-error); }
.hidden { display: none !important; }

#chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.msg-row { display: flex; }
.msg-row.user { justify-content: flex-end; }
.msg-row.assistant { justify-content: flex-start; }

.msg-bubble {
  max-width: 82%;
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 14.5px;
  line-height: 1.42;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.msg-row.user .msg-bubble {
  background: var(--loca-blue);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.msg-row.assistant .msg-bubble {
  background: #f0f2f4;
  color: var(--loca-ink);
  border-bottom-left-radius: 4px;
}

.msg-row.assistant .msg-bubble.error {
  background: #fdecea;
  color: var(--loca-error);
}

.msg-row.assistant .msg-bubble.pending {
  color: var(--loca-muted);
}

.typing-dots span {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 3px;
  border-radius: 50%;
  background: var(--loca-muted);
  animation: loca-blink 1.2s infinite ease-in-out both;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes loca-blink {
  0%, 80%, 100% { opacity: 0.25; }
  40% { opacity: 1; }
}

.cards-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
  max-width: 82%;
}

.place-card {
  border: 1px solid var(--loca-border);
  background: var(--loca-card-bg);
  border-radius: 10px;
  padding: 10px 12px;
}

.place-card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.place-card-name { font-weight: 600; font-size: 14px; }
.place-card-distance { font-size: 11.5px; color: var(--loca-muted); white-space: nowrap; }
.place-card-note { font-size: 13px; color: var(--loca-muted); margin-top: 4px; }

.place-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
}

.place-card-source { font-size: 10.5px; color: var(--loca-muted); }

.place-card-maps-btn {
  font-size: 12px;
  color: var(--loca-blue);
  text-decoration: none;
  border: 1px solid var(--loca-blue);
  border-radius: 6px;
  padding: 4px 8px;
}
.place-card-maps-btn:hover { background: var(--loca-blue); color: #fff; }

#chat-form {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--loca-border);
  background: #fff;
}

#chat-input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 20px;
  border: 1px solid var(--loca-border);
  font-size: 14px;
}
#chat-input:focus { outline: 2px solid var(--loca-blue); }

#send-btn {
  padding: 10px 18px;
  border-radius: 20px;
  border: none;
  background: var(--loca-blue);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}
#send-btn:disabled { opacity: 0.5; cursor: not-allowed; }
#send-btn:not(:disabled):hover { background: var(--loca-blue-dark); }

@media (max-width: 480px) {
  #app { max-width: 100%; }
  .msg-bubble, .cards-wrap { max-width: 90%; }
}