:root {
  --kakao-bg: #b2c7d9;
  --kakao-yellow: #fee500;
  --bot-bubble: #ffffff;
  --text: #111111;
  --subtext: #555555;
  --time: #6b7b8c;
  --border: rgba(0, 0, 0, 0.06);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --composer-h: 58px;
  --bubble-max: min(78vw, 520px);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  height: -webkit-fill-available;
  overflow: hidden;
  background: var(--kakao-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color: var(--text);
  -webkit-text-size-adjust: 100%;
}

.app {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: none;
  height: 100%;
  height: 100vh;
  height: 100dvh;
  height: -webkit-fill-available;
  min-height: 100vh;
  min-height: 100dvh;
  min-height: -webkit-fill-available;
  margin: 0;
  background: var(--kakao-bg);
}

.app-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: calc(10px + var(--safe-top)) clamp(12px, 3vw, 32px) 8px;
  background: var(--kakao-bg);
}

.app-header-brand {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.app-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
}

.app-btn-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: #333;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.app-btn-close:active {
  transform: scale(0.96);
}

.chat {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding: calc(12px + var(--safe-top)) clamp(12px, 3vw, 32px) 12px;
  scroll-behavior: smooth;
}

.msg-row {
  display: flex;
  margin-bottom: clamp(10px, 2vh, 16px);
}

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

.msg-row.bot {
  justify-content: flex-start;
  align-items: flex-end;
  gap: clamp(6px, 1.5vw, 10px);
}

.bot-avatar {
  width: clamp(34px, 8vw, 42px);
  height: clamp(34px, 8vw, 42px);
  border-radius: 14px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.bot-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 14px;
}

.bot-content {
  max-width: min(calc(100% - 52px), calc(100% - clamp(34px, 8vw, 42px) - 16px));
}

.bot-name {
  margin: 0 0 4px 2px;
}

.bubble {
  position: relative;
  padding: clamp(8px, 2vw, 12px) clamp(10px, 2.5vw, 14px);
  border-radius: 16px;
  font-size: clamp(14px, 3.5vw, 16px);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
}

.bubble.user {
  background: var(--kakao-yellow);
  border-top-right-radius: 4px;
  max-width: var(--bubble-max);
}

.bubble.bot {
  background: var(--bot-bubble);
  border-top-left-radius: 4px;
  max-width: min(85vw, 560px);
}

.bubble.bot.bubble--rich {
  white-space: normal;
  padding: clamp(10px, 2.5vw, 14px) clamp(12px, 3vw, 16px);
  line-height: 1.65;
}

/* ── ChatGPT / Gemini 스타일 마크다운 ── */
.bubble-body.md-content {
  display: flex;
  flex-direction: column;
  gap: 0.15em;
  font-size: clamp(14px, 3.5vw, 16px);
  color: #0d0d0d;
}

.md-content > * + * {
  margin-top: 0.1em;
}

.md-p {
  margin: 0 0 0.75em;
  line-height: 1.72;
  letter-spacing: -0.01em;
}

.md-p:last-child {
  margin-bottom: 0;
}

.md-p--compact {
  margin-bottom: 0.4em;
}

.md-p--compact:last-child {
  margin-bottom: 0;
}

.md-h {
  margin: 1em 0 0.45em;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: #0d0d0d;
}

.md-h:first-child {
  margin-top: 0;
}

.md-h1 { font-size: 1.12em; }
.md-h2 { font-size: 1.06em; }
.md-h3, .md-h4 { font-size: 1em; }

.md-strong {
  font-weight: 700;
  color: #0d0d0d;
}

.md-em {
  font-style: italic;
}

.md-inline-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  padding: 0.12em 0.38em;
  border-radius: 5px;
  background: #f4f4f4;
  color: #c7254e;
  word-break: break-word;
}

.md-link {
  color: #007aff;
  text-decoration: none;
  word-break: break-all;
}

.md-link:active {
  opacity: 0.75;
}

.md-list {
  margin: 0.25em 0 0.75em;
  padding-left: 1.4em;
}

.md-list--bullet {
  list-style: disc;
}

.md-list--ordered {
  list-style: decimal;
}

.md-list--nested {
  margin: 0.35em 0 0.15em;
  padding-left: 1.15em;
}

.md-li {
  margin: 0.4em 0;
  padding-left: 0.15em;
  line-height: 1.65;
}

.md-li::marker {
  color: #444;
  font-weight: 600;
}

.md-blockquote {
  margin: 0.65em 0;
  padding: 0.55em 0 0.55em 0.85em;
  border-left: 3px solid #d0d0d0;
  color: #444;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.03) 0%, transparent 100%);
  border-radius: 0 6px 6px 0;
}

.md-hr {
  border: none;
  border-top: 1px solid #e5e5e5;
  margin: 0.85em 0;
}

.md-code-wrap {
  margin: 0.65em 0 0.85em;
  border-radius: 10px;
  overflow: hidden;
  background: #f7f7f8;
  border: 1px solid #ececec;
}

.md-code-lang {
  padding: 6px 12px;
  font-size: 0.72em;
  font-weight: 600;
  color: #666;
  background: #efefef;
  border-bottom: 1px solid #e5e5e5;
  text-transform: lowercase;
}

.md-pre {
  margin: 0;
  padding: 12px 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82em;
  line-height: 1.55;
  color: #1a1a1a;
  white-space: pre-wrap;
  word-break: break-word;
}

.md-pre code {
  font-family: inherit;
  background: none;
  padding: 0;
  color: inherit;
}

.bubble-body {
  display: flex;
  flex-direction: column;
}

.msg-time {
  margin-top: 4px;
  font-size: clamp(10px, 2.2vw, 12px);
  color: var(--time);
}

.msg-row.user .msg-time {
  text-align: right;
}

.msg-row.bot .msg-time {
  margin-left: 2px;
}

.bubble.loading {
  color: var(--subtext);
}

.typing {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  margin-left: 4px;
}

.typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #8a96a3;
  animation: bounce 1.2s infinite ease-in-out;
}

.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.45; }
  40% { transform: translateY(-4px); opacity: 1; }
}

/* ── 입력창 위 관련 질문 (app 모드) ── */
.related-questions-bar--app {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: #eef2f6;
  padding: 10px clamp(10px, 3vw, 24px) 8px;
}

.related-questions-bar__head {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--subtext);
  letter-spacing: -0.01em;
}

.related-questions-bar__scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.related-questions-bar__scroll::-webkit-scrollbar {
  display: none;
}

.related-questions-bar__chip {
  flex-shrink: 0;
  border: 1px solid #d8dce3;
  background: #fff;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  line-height: 1.35;
  cursor: pointer;
  white-space: nowrap;
  max-width: min(85vw, 320px);
  overflow: hidden;
  text-overflow: ellipsis;
}

.related-questions-bar__chip:hover:not(:disabled) {
  background: #f5f7fa;
  border-color: #c5cad3;
}

.related-questions-bar__chip:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.composer {
  position: relative;
  z-index: 10;
  flex-shrink: 0;
  overflow: visible;
  padding: clamp(8px, 2vw, 12px) clamp(10px, 3vw, 24px) calc(clamp(8px, 2vw, 12px) + var(--safe-bottom));
  background: #f6f6f6;
  border-top: 1px solid var(--border);
}

.composer form {
  display: flex;
  gap: clamp(6px, 1.5vw, 10px);
  align-items: center;
  width: 100%;
  max-width: none;
}

.composer input {
  flex: 1;
  min-width: 0;
  height: clamp(40px, 10vw, 44px);
  border: 1.5px solid #007aff;
  border-radius: 999px;
  padding: 0 clamp(14px, 3.5vw, 18px);
  font-size: clamp(14px, 3.5vw, 16px);
  background: #fff;
  outline: none;
}

.composer input:focus {
  border-color: #007aff;
}

.composer input:disabled {
  background: #fafafa;
  border-color: #c8c8c8;
}

.btn-send {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: clamp(36px, 9vw, 40px);
  min-width: clamp(56px, 15vw, 68px);
  padding: 0 clamp(16px, 4vw, 20px);
  border: none;
  border-radius: 999px;
  font-size: clamp(14px, 3.5vw, 16px);
  font-weight: 500;
  font-family: inherit;
  line-height: 1;
  cursor: default;
  transition: background 0.15s ease, color 0.15s ease;
  background: #ececec;
  color: #a8a8a8;
}

.btn-send.is-ready {
  background: #007aff;
  color: #fff;
  cursor: pointer;
}

.btn-send.is-ready:active {
  transform: scale(0.97);
}

.faq-wrap {
  position: relative;
  flex-shrink: 0;
}

.btn-faq {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(40px, 10vw, 44px);
  height: clamp(40px, 10vw, 44px);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: #fff;
  color: #007aff;
  border: 1.5px solid #007aff;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn-faq:active,
.btn-faq.is-open {
  transform: scale(0.96);
  background: #007aff;
  color: #fff;
}

.btn-faq:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.faq-panel[hidden],
.faq-panel.faq-panel--closed {
  display: none !important;
}

.faq-panel {
  position: fixed;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  bottom: calc(72px + var(--safe-bottom));
  width: min(92vw, 360px);
  max-height: min(62vh, 520px);
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 1000;
}

.faq-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid #eee;
  font-size: 0.92rem;
  font-weight: 700;
  color: #222;
  flex-shrink: 0;
}

.faq-close {
  border: none;
  background: transparent;
  font-size: 1.4rem;
  line-height: 1;
  color: #888;
  cursor: pointer;
  padding: 0 4px;
}

.faq-body {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px 10px 12px;
}

.faq-loading,
.faq-empty {
  margin: 12px 8px;
  font-size: 0.85rem;
  color: #666;
}

.faq-section + .faq-section {
  margin-top: 10px;
}

.faq-cat {
  margin: 8px 6px 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #007aff;
  letter-spacing: -0.01em;
}

.faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.faq-item {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: #f7f9fc;
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 6px;
  font-size: 0.84rem;
  line-height: 1.45;
  color: #222;
  cursor: pointer;
  font-family: inherit;
}

.faq-item:active {
  background: #e8f2ff;
}

.btn-voice {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(40px, 10vw, 44px);
  height: clamp(40px, 10vw, 44px);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  background: #fff;
  color: #444;
  border: 1px solid #ddd;
}

.btn-voice:active {
  transform: scale(0.96);
}

.btn-send:disabled,
.btn-voice:disabled,
.composer input:disabled {
  opacity: 1;
}

.btn-voice:disabled,
.composer input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-voice.listening {
  background: #ff4d4f;
  border-color: #ff4d4f;
  color: #fff;
  box-shadow: 0 0 0 4px rgba(255, 77, 79, 0.25);
  animation: pulse-mic 1.2s ease-in-out infinite;
}

.btn-voice.unsupported {
  opacity: 0.35;
  cursor: not-allowed;
}

@keyframes pulse-mic {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 77, 79, 0.2); }
  50% { box-shadow: 0 0 0 8px rgba(255, 77, 79, 0.12); }
}

.welcome-card {
  margin: 8px 0 clamp(14px, 3vh, 20px);
  padding: clamp(12px, 3vw, 16px);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 14px;
  font-size: clamp(13px, 3.2vw, 15px);
  line-height: 1.6;
  color: #333;
  max-width: 100%;
}

/* ── Kakao ListCard 스타일 (주유·휴게소 등) ── */
.list-card-stack {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
  max-width: min(85vw, 360px);
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  max-width: min(85vw, 360px);
}

.action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 8px 12px;
  border: 1px solid rgba(0, 122, 255, 0.28);
  border-radius: 999px;
  background: #fff;
  color: #007aff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.action-button:active {
  transform: scale(0.98);
}

.list-card {
  background: #fff;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.list-card__title {
  margin: 0;
  padding: 12px 14px 8px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  color: #111;
}

.list-card__items {
  list-style: none;
  margin: 0;
  padding: 0 10px 10px;
}

.list-card__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 4px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.list-card__row-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  color: inherit;
  text-decoration: none;
}

.list-card__row-link:active {
  opacity: 0.72;
}

.list-card__row:first-child {
  border-top: none;
}

.list-card__meta {
  min-width: 0;
  flex: 1;
}

.list-card__price {
  font-size: 17px;
  font-weight: 700;
  color: #111;
  line-height: 1.3;
}

.list-card__location {
  margin-top: 2px;
  font-size: 12px;
  color: #777;
  line-height: 1.3;
}

.list-card__fuel {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: #f5f5f5;
  color: #333;
}

.list-card__fuel-icon {
  font-size: 16px;
  line-height: 1;
}

.list-card__thumb {
  width: 36px;
  height: 36px;
  object-fit: contain;
  display: block;
}

.list-card__fuel-label {
  font-size: 10px;
  font-weight: 700;
  line-height: 1.1;
}

.list-card__fuel--gasoline {
  background: #1a1a1a;
  color: #fff;
}

.list-card__fuel--diesel {
  background: #f58220;
  color: #fff;
}

.list-card__fuel--lpg {
  background: #f5c518;
  color: #222;
}

.list-card__fuel--electric {
  background: #007aff;
  color: #fff;
}

.list-card__fuel--hydrogen {
  background: #34c759;
  color: #fff;
}

.list-card__fuel--food {
  background: #ff9500;
  color: #fff;
}

.list-card__fuel--food-soup,
.list-card__fuel--food-rice,
.list-card__fuel--food-meat,
.list-card__fuel--food-fish,
.list-card__fuel--food-noodle,
.list-card__fuel--food-coffee,
.list-card__fuel--food-bread,
.list-card__fuel--food-drink,
.list-card__fuel--food-premium,
.list-card__fuel--food-recommend {
  background: #ff9500;
  color: #fff;
}

.list-card__fuel--facility,
.list-card__fuel--facility-nursery,
.list-card__fuel--facility-shower,
.list-card__fuel--facility-pharmacy,
.list-card__fuel--facility-carwash,
.list-card__fuel--facility-repair {
  background: #5856d6;
  color: #fff;
}

.list-card__fuel--shop,
.list-card__fuel--theme,
.list-card__fuel--recruit {
  background: #007aff;
  color: #fff;
}

.list-card__fuel--road-smooth {
  background: #34c759;
  color: #fff;
}

.list-card__fuel--road-slow {
  background: #ffcc00;
  color: #222;
}

.list-card__fuel--road-congestion,
.list-card__fuel--road-accident {
  background: #ff3b30;
  color: #fff;
}

.list-card__fuel--road-work {
  background: #ff9500;
  color: #fff;
}

.list-card__fuel--unknown {
  background: #8e8e93;
  color: #fff;
}

/* ── 유사 질문 Quick Reply (카카오톡 스타일) ── */
.quick-reply-wrap {
  margin-top: 10px;
  max-width: min(85vw, 360px);
}

.quick-reply-title {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  color: #666;
}

.quick-reply-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-reply-chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 8px 12px;
  border: 1px solid #d8dce3;
  border-radius: 18px;
  background: #fff;
  color: #222;
  font-size: 13px;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.quick-reply-chip:hover:not(:disabled) {
  background: #fff9db;
  border-color: #fee500;
}

.quick-reply-chip:active:not(:disabled) {
  background: #fee500;
}

.quick-reply-chip:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

@media (min-width: 1024px) {
  :root {
    --bubble-max: min(520px, 45vw);
  }

  .chat {
    padding-left: max(32px, 8vw);
    padding-right: max(32px, 8vw);
  }

  .composer form {
    max-width: 1200px;
    margin: 0 auto;
  }
}

.bot-avatar-fallback {
  font-size: 0.72rem;
  font-weight: 700;
  color: #007aff;
}

.loading-text {
  color: var(--subtext);
}

.md-content p {
  margin: 0 0 0.75em;
  line-height: 1.72;
}

.md-content p:last-child {
  margin-bottom: 0;
}

.md-content ul,
.md-content ol {
  margin: 0.25em 0 0.75em;
  padding-left: 1.4em;
}

.md-content li {
  margin: 0.4em 0;
  line-height: 1.65;
}

.suggestion-block {
  margin-top: 0.85em;
}

.suggestion-block__title {
  margin: 0 0 0.65em;
  font-weight: 500;
}

.suggestion-block__list {
  list-style: none;
  margin: 0.25em 0 0.75em;
  padding: 0;
}

.suggestion-block__list li {
  margin: 0.28em 0;
}

.suggestion-block__button {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.35em;
  max-width: 100%;
  border: 0;
  padding: 0.1em 0;
  background: transparent;
  color: inherit;
  font: inherit;
  line-height: 1.65;
  text-align: left;
  cursor: pointer;
}

.suggestion-block__button:hover {
  color: #006ee6;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.suggestion-block__button:disabled {
  cursor: default;
  text-decoration: none;
}

.suggestion-block__index {
  flex-shrink: 0;
}

.md-content h1,
.md-content h2,
.md-content h3,
.md-content h4 {
  margin: 1em 0 0.45em;
  font-weight: 700;
  line-height: 1.35;
}

.md-content h1:first-child,
.md-content h2:first-child,
.md-content h3:first-child {
  margin-top: 0;
}

.md-content a {
  color: #007aff;
  word-break: break-all;
}

.md-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
  padding: 0.12em 0.38em;
  border-radius: 5px;
  background: #f4f4f4;
}

.faq-category-title {
  margin: 8px 6px 6px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #007aff;
}