/* 정부24 AI 모드 스타일 — 한국도로공사 AI 챗봇 */
:root {
  --ai-primary: #246beb;
  --ai-primary-dark: #1b53b7;
  --ai-bg: #ffffff;
  --ai-surface: #ffffff;
  --ai-border: #e4e7ec;
  --ai-text: #111827;
  --ai-subtext: #6b7280;
  --ai-user-bg: #eef4ff;
  --ai-max-width: 760px;
}

html.ai-mode,
html.ai-mode body {
  background: var(--ai-bg);
  color: var(--ai-text);
  overflow: hidden;
}

.ai-app {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--ai-bg);
}

.ai-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: calc(14px + env(safe-area-inset-top, 0px)) 20px 12px;
  background: var(--ai-surface);
  border-bottom: none;
  z-index: 20;
}

.ai-app--chat .ai-header {
  border-bottom: 1px solid var(--ai-border);
}

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

.ai-header-brand .ex-brand {
  max-width: 100%;
}

.ai-header-brand .ex-brand-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ai-location {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  color: #374151;
}

.ai-location-icon {
  flex-shrink: 0;
  color: var(--ai-primary);
}

.ai-location-label {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.ai-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.ai-brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #246beb 0%, #1a4fa8 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.ai-brand-text {
  min-width: 0;
}

.ai-brand-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.ai-brand-sub {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--ai-subtext);
  line-height: 1.3;
}

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

.ai-btn-ghost {
  border: 1px solid var(--ai-border);
  background: var(--ai-surface);
  color: var(--ai-text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.ai-btn-ghost.is-open {
  background: #eef4ff;
  border-color: #bfd3ff;
  color: var(--ai-primary-dark);
}

.ai-btn-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--ai-border);
  border-radius: 50%;
  background: var(--ai-surface);
  color: var(--ai-text);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.ai-btn-close:hover {
  background: #f9fafb;
  border-color: #cbd5e1;
}

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

.ai-btn-ghost:hover:not(:disabled) {
  background: #f9fafb;
  border-color: #cbd5e1;
}

.ai-btn-ghost:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ai-main {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.ai-app--landing .ai-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ai-app--landing .ai-main-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.ai-main-inner {
  width: 100%;
  max-width: var(--ai-max-width);
  margin: 0 auto;
  padding: 16px 20px 16px;
}

.ai-app--landing .ai-main-inner {
  max-width: 960px;
}

.ai-hero {
  padding: clamp(12px, 3vh, 28px) 0 clamp(16px, 4vh, 32px);
}

.ai-hero-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 4vw, 40px);
}

.ai-hero-copy {
  flex: 1 1 0;
  min-width: 0;
  text-align: left;
}

.ai-hero-visual {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(42vw, 220px);
  max-width: 220px;
}

.ai-hero-mascot {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.ai-hero-greeting {
  margin: 0;
  font-size: clamp(30px, 7vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.04em;
  color: #0f766e;
}

.ai-hero-question {
  margin: 8px 0 0;
  font-size: clamp(28px, 6.5vw, 38px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.04em;
  color: var(--ai-primary);
}

.ai-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: #eef4ff;
  color: var(--ai-primary);
  font-size: 12px;
  font-weight: 700;
}

.ai-hero-title {
  margin: 0;
  font-size: clamp(28px, 6vw, 36px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.ai-hero-subtitle {
  margin: 10px 0 0;
  font-size: clamp(16px, 3.5vw, 18px);
  color: var(--ai-subtext);
  line-height: 1.5;
}

.ai-hero-faq {
  margin-top: clamp(20px, 4vh, 32px);
  width: 100%;
  max-width: 520px;
}

.ai-hero-faq-title {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ai-subtext);
  letter-spacing: -0.01em;
  text-align: left;
}

.ai-hero-faq-loading {
  margin: 0;
  font-size: 14px;
  color: var(--ai-subtext);
  text-align: left;
}

.ai-suggestions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 8px;
  margin-top: 0;
}

.ai-suggestion-chip {
  border: 1px solid var(--ai-border);
  background: var(--ai-surface);
  color: var(--ai-text);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  line-height: 1.35;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.ai-suggestion-chip:hover:not(:disabled) {
  border-color: #93c5fd;
  background: #f8fbff;
}

.ai-suggestion-chip:active:not(:disabled) {
  transform: scale(0.98);
}

.ai-suggestion-chip:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.ai-thread {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-bottom: 8px;
}

.ai-msg {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ai-msg.user {
  align-items: flex-end;
}

.ai-msg.assistant {
  align-items: flex-start;
}

.ai-msg-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--ai-subtext);
  padding: 0 4px;
}

.ai-msg-bubble {
  max-width: min(92%, 640px);
  padding: 14px 16px;
  border-radius: 16px;
  font-size: 15px;
  line-height: 1.65;
  word-break: break-word;
}

.ai-msg.user .ai-msg-bubble {
  background: var(--ai-user-bg);
  border: 1px solid #dbeafe;
  border-bottom-right-radius: 4px;
  white-space: pre-wrap;
}

.ai-msg.assistant .ai-msg-bubble {
  background: var(--ai-surface);
  border: 1px solid var(--ai-border);
  border-bottom-left-radius: 4px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.ai-msg-bubble .md-content {
  font-size: 15px;
}

.ai-loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ai-subtext);
}

.ai-loading-dots {
  display: inline-flex;
  gap: 4px;
}

.ai-loading-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #94a3b8;
  animation: ai-bounce 1.2s infinite ease-in-out;
}

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

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

.ai-composer-wrap {
  flex-shrink: 0;
  background: transparent;
  border-top: none;
  padding: 8px 20px calc(16px + env(safe-area-inset-bottom, 0px));
}

.ai-app--landing .ai-composer-wrap {
  margin-top: auto;
}

.ai-composer-inner {
  width: 100%;
  max-width: var(--ai-max-width);
  margin: 0 auto;
}

.ai-composer-box {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  padding: 8px 10px 8px 22px;
  border: 1.5px solid transparent;
  border-radius: 9999px;
  background:
    linear-gradient(var(--ai-surface), var(--ai-surface)) padding-box,
    linear-gradient(90deg, #14b8a6 0%, var(--ai-primary) 100%) border-box;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
  transition: box-shadow 0.15s ease;
}

.ai-composer-box:focus-within {
  box-shadow: 0 4px 18px rgba(36, 107, 235, 0.12);
}

.ai-composer-input {
  flex: 1;
  min-width: 0;
  min-height: 24px;
  max-height: 120px;
  border: none;
  outline: none;
  resize: none;
  background: transparent;
  font-size: 16px;
  line-height: 1.5;
  font-family: inherit;
  color: var(--ai-text);
  padding: 8px 0;
}

.ai-composer-input::placeholder {
  color: #9ca3af;
}

.ai-composer-input:disabled {
  opacity: 0.6;
}

.ai-composer-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.ai-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: #4b5563;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.ai-icon-btn:hover:not(:disabled) {
  background: #f1f5f9;
  color: var(--ai-primary);
}

.ai-icon-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.ai-icon-btn.listening {
  background: #fee2e2;
  color: #ef4444;
}

.ai-icon-btn.unsupported {
  opacity: 0.85;
}

.ai-send-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: #4b5563;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.ai-send-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.ai-send-btn.is-ready {
  color: #374151;
}

.ai-send-btn.is-ready:hover:not(:disabled) {
  color: var(--ai-primary);
  background: rgba(36, 107, 235, 0.06);
}

.ai-send-btn.is-ready:active {
  transform: scale(0.96);
}

.ai-footer-note {
  margin: 10px 4px 0;
  font-size: 11px;
  line-height: 1.5;
  color: #9ca3af;
  text-align: center;
}

.ai-faq-bar {
  flex-shrink: 0;
  border-top: 1px solid var(--ai-border);
  background: #f9fafb;
  padding: 10px 0 calc(8px + env(safe-area-inset-bottom, 0px));
}

.ai-faq-bar-head {
  max-width: var(--ai-max-width);
  margin: 0 auto 8px;
  padding: 0 16px;
  font-size: 12px;
  font-weight: 700;
  color: var(--ai-subtext);
  letter-spacing: -0.01em;
}

.ai-faq-bar-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 16px 2px;
  max-width: var(--ai-max-width);
  margin: 0 auto;
}

.ai-faq-bar-scroll::-webkit-scrollbar {
  display: none;
}

.ai-faq-bar-empty {
  margin: 0;
  padding: 4px 0;
  font-size: 13px;
  color: var(--ai-subtext);
  white-space: nowrap;
}

.ai-faq-chip {
  flex-shrink: 0;
  border: 1px solid var(--ai-border);
  background: var(--ai-surface);
  color: var(--ai-text);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  line-height: 1.35;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
  max-width: min(280px, 72vw);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-faq-chip:hover:not(:disabled) {
  border-color: #93c5fd;
  background: #eef4ff;
}

.ai-faq-chip:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* AI 모드 — 헤더 FAQ 드롭다운 */
html.ai-mode .faq-panel {
  left: auto;
  right: 16px;
  bottom: auto;
  top: calc(56px + env(safe-area-inset-top, 0px));
  transform: none;
  width: min(calc(100vw - 32px), 360px);
  max-height: min(58vh, 520px);
}

html.ai-mode .ai-app--embed .faq-panel {
  right: 12px;
}

.ai-quick-replies {
  margin-top: 10px;
  max-width: min(92%, 640px);
}

.ai-quick-replies .quick-reply-title {
  color: var(--ai-subtext);
}

.ai-quick-replies .quick-reply-chip {
  border-color: var(--ai-border);
  border-radius: 999px;
}

.ai-quick-replies .quick-reply-chip:hover:not(:disabled) {
  background: #eef4ff;
  border-color: #93c5fd;
}

.ai-list-cards {
  margin-top: 10px;
  max-width: min(92%, 640px);
}

.ai-list-cards .list-card {
  border-radius: 12px;
}

.ai-list-cards .fare-result-card {
  max-width: 100%;
}

@media (max-width: 560px) {
  .ai-header {
    padding-left: 14px;
    padding-right: 14px;
  }

  .ai-btn-ghost {
    padding: 8px 12px;
    font-size: 12px;
  }

  .ai-hero-layout {
    flex-direction: column-reverse;
    align-items: stretch;
    text-align: center;
  }

  .ai-hero-copy {
    text-align: center;
  }

  .ai-hero-faq-title,
  .ai-hero-faq-loading {
    text-align: center;
  }

  .ai-suggestions {
    justify-content: center;
  }

  .ai-hero-visual {
    width: min(56vw, 180px);
    max-width: none;
    margin: 0 auto;
  }
}

@media (min-width: 768px) {
  .ai-header {
    padding-left: 28px;
    padding-right: 28px;
  }

  .ai-main-inner,
  .ai-composer-inner,
  .ai-faq-bar-head,
  .ai-faq-bar-scroll {
    padding-left: 28px;
    padding-right: 28px;
  }

  .ai-composer-wrap {
    padding-left: 28px;
    padding-right: 28px;
  }
}

/* ── 음성 입력 오버레이 (정부24 하단 시트 스타일) ── */
.ai-voice-overlay {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 100;
  pointer-events: none;
}

.ai-voice-sheet {
  position: relative;
  pointer-events: auto;
  overflow: visible;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.88) 14%,
    #ffffff 28%,
    #ffffff 100%
  );
  border-radius: 28px 28px 0 0;
  box-shadow:
    0 -4px 24px rgba(15, 23, 42, 0.06),
    0 -1px 0 rgba(255, 255, 255, 0.8) inset;
}

.ai-voice-sheet-fade {
  position: absolute;
  left: 0;
  right: 0;
  top: -72px;
  height: 72px;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.35) 45%,
    rgba(255, 255, 255, 0.82) 100%
  );
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  mask-image: linear-gradient(180deg, transparent 0%, #000 72%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 72%);
}

.ai-voice-sheet-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 8px 24px calc(20px + env(safe-area-inset-bottom, 0px));
}

.ai-voice-mic-btn {
  position: relative;
  width: 92px;
  height: 92px;
  margin-top: 4px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

.ai-voice-mic-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.ai-voice-mic-btn.is-listening .ai-voice-mic-ring--1,
.ai-voice-mic-btn.is-speaking .ai-voice-mic-ring--1 {
  opacity: 1;
  inset: -6px;
  border: 2px solid rgba(36, 107, 235, 0.35);
  animation: ai-voice-ring-pulse 2.2s ease-out infinite;
}

.ai-voice-mic-btn.is-speaking .ai-voice-mic-ring--2 {
  opacity: 1;
  inset: -14px;
  border: 1.5px solid rgba(15, 118, 110, 0.35);
  animation: ai-voice-ring-pulse 2.2s ease-out infinite 0.35s;
}

.ai-voice-mic-core {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(145deg, #10b981 0%, #0ea5e9 42%, #246beb 100%);
  box-shadow:
    0 10px 32px rgba(36, 107, 235, 0.32),
    0 2px 8px rgba(16, 185, 129, 0.25);
  transition: box-shadow 0.25s ease, transform 0.2s ease;
}

.ai-voice-mic-btn.is-listening .ai-voice-mic-core {
  animation: ai-voice-mic-glow 2.4s ease-in-out infinite;
}

.ai-voice-mic-btn.is-speaking .ai-voice-mic-core {
  animation: ai-voice-mic-glow 1s ease-in-out infinite;
}

.ai-voice-waveform {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
  width: min(100%, 280px);
  height: 36px;
  opacity: 0.45;
  transition: opacity 0.25s ease;
}

.ai-voice-waveform.is-listening {
  opacity: 1;
}

.ai-voice-wave-bar {
  display: block;
  flex: 0 0 5px;
  width: 5px;
  min-height: var(--bar-min, 6px);
  height: var(--bar-min, 6px);
  border-radius: 999px;
  background: linear-gradient(180deg, #34d399 0%, #22d3ee 45%, #3b82f6 100%);
  transform-origin: center bottom;
}

.ai-voice-waveform.is-listening .ai-voice-wave-bar {
  animation-name: ai-voice-eq;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}

.ai-voice-waveform.is-speaking .ai-voice-wave-bar {
  animation-direction: alternate-reverse;
}

.ai-voice-status-pill {
  margin: 0;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  color: #1f2937;
  background: #fff;
  border: 1px solid #e0e7ff;
  border-radius: 999px;
  box-shadow: 0 2px 10px rgba(36, 107, 235, 0.07);
  max-width: min(92vw, 420px);
  text-align: center;
  line-height: 1.45;
  word-break: keep-all;
}

.ai-voice-status-pill.is-error {
  color: #b45309;
  border-color: #fde68a;
  background: #fffbeb;
}

.ai-voice-interim {
  margin: -4px 0 0;
  max-width: min(92vw, 420px);
  font-size: 14px;
  line-height: 1.5;
  color: #6b7280;
  text-align: center;
  word-break: keep-all;
}

@keyframes ai-voice-ring-pulse {
  0% {
    transform: scale(1);
    opacity: 0.65;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

@keyframes ai-voice-mic-glow {
  0%,
  100% {
    box-shadow:
      0 10px 32px rgba(36, 107, 235, 0.28),
      0 0 0 0 rgba(36, 107, 235, 0.15);
  }
  50% {
    box-shadow:
      0 14px 40px rgba(36, 107, 235, 0.42),
      0 0 0 12px rgba(36, 107, 235, 0.05);
  }
}

@keyframes ai-voice-eq {
  0% {
    height: var(--bar-min, 6px);
    transform: scaleY(0.85);
  }
  100% {
    height: var(--bar-max, 20px);
    transform: scaleY(1);
  }
}