/* Showgle AI - Core Stylesheet (CSS 변수, 리셋, 레이아웃) */

/* ============================================================================
   섹션 1: CSS 변수
   ============================================================================ */

:root {
  /* ========================================
     테마 설정 (Theme Configuration)
     이 섹션의 색상만 변경하면 전체 테마가 바뀝니다
     ======================================== */

  /* ========================================
     브랜드 색상 (Brand Colors)
     ======================================== */

  /** 메인 브랜드 색상 - 쇼글 오렌지 */
  --primary: #ff5000;
  --primary-rgb: 255, 80, 0;

  /** 밝은 브랜드 색상 - hover 상태 등에 사용 */
  --primary-light: #ff7733;
  --primary-light-rgb: 255, 119, 51;

  /** 어두운 브랜드 색상 - active 상태 등에 사용 */
  --primary-dark: #e64800;
  --primary-dark-rgb: 230, 72, 0;

  /** 그라디언트 종점 색상 */
  --primary-gradient-end: #e64500;

  /** 연한 오렌지 강조 배경 (AI 영역, 추천 카드 등) */
  --accent-bg: #fff0eb;

  /** 선택 요소 내부 배경색 */
  --accent-bg-light: #fafafa;

  /* ========================================
     배경 및 텍스트 색상 (Background & Text)
     ======================================== */

  /** 페이지 전체 배경색 */
  --bg: #f8fafc;

  /** 비활성/서브 배경색 (disabled, hover 배경 등) */
  --bg-alt: #f1f5f9;

  /** 기본 텍스트 색상 (진한 남색) */
  --text: #1e293b;

  /** 보조 텍스트 색상 (회색) */
  --text-secondary: #64748b;

  /** 테두리 색상 */
  --border: #e2e8f0;

  /** 카드/컴포넌트 배경색 */
  --card-bg: #fff;

  /* ========================================
     채팅 버블 색상 (Chat Bubble Colors)
     ======================================== */

  /** 사용자 메시지 배경색 */
  --user-bubble: var(--primary);

  /** AI 메시지 배경색 */
  --ai-bubble: #fff;

  /* ========================================
     사이드바 색상 (Sidebar Colors)
     ======================================== */

  /** 사이드바 배경색 (다크 테마) */
  --sidebar-bg: #1e293b;

  /** 사이드바 텍스트 색상 */
  --sidebar-text: #e2e8f0;

  /* ========================================
     상태 색상 (Status Colors)
     ======================================== */

  /** 성공 상태 - 초록색 */
  --success: #10b981;

  /** 경고 상태 - 주황색 */
  --warning: #f59e0b;

  /** 에러 상태 - 빨간색 */
  --error: #ef4444;

  /* ========================================
     Border Radius (테두리 반경)
     ======================================== */

  /** 작은 반경 - 칩, 태그 등 */
  --radius-sm: 4px;

  /** 기본 반경 - 입력 필드, 버튼 */
  --radius-md: 8px;

  /** 큰 반경 - 카드, 모달 */
  --radius-lg: 12px;

  /** 매우 큰 반경 - 큰 카드 */
  --radius-xl: 16px;

  /** 완전한 원형 */
  --radius-full: 9999px;

  /* ========================================
     Spacing (간격)
     ======================================== */

  /** 매우 작은 간격 */
  --space-xs: 4px;

  /** 작은 간격 */
  --space-sm: 8px;

  /** 기본 간격 */
  --space-md: 12px;

  /** 큰 간격 */
  --space-lg: 16px;

  /** 매우 큰 간격 */
  --space-xl: 20px;

  /** 초대형 간격 */
  --space-2xl: 24px;

  /* ========================================
     Transitions (전환 효과)
     ======================================== */

  /** 빠른 전환 */
  --transition-fast: 0.15s ease;

  /** 기본 전환 */
  --transition-normal: 0.2s ease;

  /** 느린 전환 */
  --transition-slow: 0.3s ease;

  /* ========================================
     동적 뷰포트 (Dynamic Viewport)
     ======================================== */

  /**
   * 동적 뷰포트 높이 단위
   * JavaScript에서 실제 뷰포트 높이로 업데이트됨
   * 모바일 브라우저의 주소창 높이 변화에 대응
   */
  --vh: 1vh;

  /* ========================================
     Font Scaling (폰트 크기 조정)
     ======================================== */

  /**
   * 사용자가 고른 표시 배율 (기본값: 1 = 화면 표시 100%)
   * JavaScript(FontScale)가 0.5 ~ 1.5 범위로 조정한다
   */
  --font-scale-user: 1;

  /**
   * 260824 전역 기준선. 표시 100% 를 종전 120% 크기로 올린다.
   * 사용자에게 보이는 숫자는 --font-scale-user 이고, 실제 렌더링은 여기에 곱해진다.
   */
  --font-scale-base: 1.2;

  /**
   * 실제 적용 배율 = 표시 배율 x 기준선
   * JS 미로드 시에도 기준선이 먹도록 CSS 에서 계산한다
   */
  --font-scale: calc(var(--font-scale-user) * var(--font-scale-base));

  /** 기본 폰트 크기들 (스케일 적용, 기준값은 원본의 80%) */
  --font-size-xs: calc(11.2px * var(--font-scale));
  --font-size-sm: calc(12.8px * var(--font-scale));
  --font-size-base: calc(14.4px * var(--font-scale));
  --font-size-md: calc(16.8px * var(--font-scale));
  --font-size-lg: calc(18.4px * var(--font-scale));
  --font-size-xl: calc(20.8px * var(--font-scale));
  --font-size-2xl: calc(24.8px * var(--font-scale));
}

/* ============================================================================
   섹션 2: 기본 리셋 및 타이포그래피
   ============================================================================ */

html {
  height: 100%;
  height: -webkit-fill-available;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  height: -webkit-fill-available;
  height: 100dvh;
  display: flex;
  overflow: hidden;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
}

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

/* 히스토리 메시지: 원래 스타일 유지, 클릭만 차단 */
.message.is-history .message-content {
  pointer-events: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* ============================================================================
   섹션 3: 레이아웃
   ============================================================================ */

/* ============================================================================
   사이드바
   ============================================================================ */

.sidebar {
  width: 280px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform 0.3s ease;
  z-index: 1000;
}

/* ----------------------------------------------------------------------------
   사이드바 헤더
   ---------------------------------------------------------------------------- */

.sidebar-header {
  padding: 20px;
  padding-top: calc(20px + env(safe-area-inset-top));
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h1 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.version-badge {
  font-size: var(--font-size-xs);
  padding: 2px 6px;
  background: var(--primary);
  border-radius: 4px;
  color: white;
}

.new-chat-btn {
  width: 100%;
  padding: 12px 16px;
  margin-top: 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.new-chat-btn:hover {
  background: var(--primary-dark);
}


/* ----------------------------------------------------------------------------
   사이드바 푸터 (사용자 ID 변경)
   ---------------------------------------------------------------------------- */

.sidebar-footer {
  padding: 12px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.2);
}

.user-id-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.user-id-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.user-id-input-wrapper {
  display: flex;
  gap: 6px;
}

.user-id-input {
  flex: 1;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  color: var(--sidebar-text);
  font-size: var(--font-size-sm);
  font-family: monospace;
  min-width: 0;
}

.user-id-input:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.15);
}

.user-id-input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.user-id-btn {
  padding: 8px 12px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: var(--font-size-sm);
  cursor: pointer;
  white-space: nowrap;
}

.user-id-btn:hover {
  background: var(--primary-dark);
}

.user-id-btn:disabled {
  background: rgba(255, 255, 255, 0.2);
  cursor: not-allowed;
}

.user-id-current {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
  word-break: break-all;
}

/* ----------------------------------------------------------------------------
   폰트 크기 조정 컨트롤
   ---------------------------------------------------------------------------- */

.font-scale-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 12px;
  margin-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.font-scale-label {
  font-size: calc(8.8px * var(--font-scale));
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.font-scale-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.font-scale-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  color: var(--sidebar-text);
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.font-scale-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.2);
}

.font-scale-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.font-scale-value {
  flex: 1;
  text-align: center;
  font-size: calc(10.4px * var(--font-scale));
  font-weight: 500;
  color: var(--sidebar-text);
}

.font-scale-reset {
  padding: 6px 10px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: rgba(255, 255, 255, 0.7);
  font-size: calc(8.8px * var(--font-scale));
  cursor: pointer;
  transition: all 0.15s ease;
}

.font-scale-reset:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--sidebar-text);
}

/* ============================================================================
   사이드바 오버레이
   ============================================================================ */

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.sidebar-overlay.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================================
   메인 콘텐츠 영역
   ============================================================================ */

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  min-width: 0;
  min-height: 0;
  height: 100%;
}

/* ----------------------------------------------------------------------------
   채팅 헤더
   ---------------------------------------------------------------------------- */

.chat-header {
  padding: 16px 24px;
  background: white;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-header h2 {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--text);
}

.phase-badge {
  font-size: var(--font-size-sm);
  padding: 4px 12px;
  background: #f1f5f9;
  border-radius: 16px;
  color: var(--text-secondary);
}

.header-logo {
  height: 28px;
  width: auto;
}

.mobile-header .header-logo {
  height: 24px;
  width: auto;
}

.sidebar-header .header-logo {
  height: 22px;
  width: auto;
  filter: brightness(0) invert(1);
}

/* ----------------------------------------------------------------------------
   모바일 헤더 (768px 이하에서 표시)
   ---------------------------------------------------------------------------- */

.mobile-header {
  display: none;
  padding: 12px 16px;
  background: #ffffff;
  color: var(--text);
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.mobile-header h1 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.mobile-logo-btn {
  cursor: pointer;
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  background: none;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
}
.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text, #1f2937);
  border-radius: 1px;
}

.mobile-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.mobile-new-chat-btn {
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-size: calc(10.4px * var(--font-scale));
  font-weight: 500;
  cursor: pointer;
}

.mobile-close-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 6px;
  font-size: 16px;
  color: var(--text, #1f2937);
  cursor: pointer;
  flex-shrink: 0;
}
.mobile-close-btn:active {
  background: var(--hover-bg, #f3f4f6);
}

/* ============================================================================
   메시지 영역
   ============================================================================ */

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 16px;
  -webkit-overflow-scrolling: touch;
}

/* 히어로 섹션 — 대화 영역 최상단 안내 배너 */
.chat-hero {
  width: 70%;
  align-self: center;
}

.chat-hero-body {
  padding: 28px 0 22px;
}

.chat-hero-title {
  margin: 0 0 10px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text, #1f2937);
}

.chat-hero-title-main {
  font-size: calc(42.8px * var(--font-scale));
}

.chat-hero-title-sub {
  font-size: calc(30.8px * var(--font-scale));
}

.chat-hero-desc {
  margin: 0;
  font-size: var(--font-size-md);
  line-height: 1.6;
  color: var(--text-secondary, #6b7280);
}

.chat-hero-desc strong {
  color: var(--primary, #f97316);
  font-weight: 700;
}

.chat-hero-desc--mobile {
  display: none;
}

@media (max-width: 768px) {
  .chat-hero {
    width: 95%;
  }
  .chat-hero-body {
    padding: 20px 0 14px;
  }
  .chat-hero-title-main {
    font-size: calc(28px * var(--font-scale));
  }
  .chat-hero-title-sub {
    font-size: calc(21px * var(--font-scale));
  }
  .chat-hero-desc {
    font-size: var(--font-size-base);
    line-height: 1.5;
  }
  .chat-hero-desc--desktop {
    display: none;
  }
  .chat-hero-desc--mobile {
    display: block;
  }
}

.messages-wrapper {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ----------------------------------------------------------------------------
   개별 메시지 스타일
   ---------------------------------------------------------------------------- */

.message {
  display: flex;
  max-width: 85%;
}

.message.user {
  align-self: flex-end;
}

.message.ai {
  align-self: center;
  width: 70%;
  max-width: none;
}

.message-content {
  padding: 12px 8px;
  border-radius: 16px;
  font-size: var(--font-size-md);
  line-height: 1.5;
}

.message.ai .message-content {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px 16px 16px 4px;
  width: 100%;
  box-sizing: border-box;
}

.message.user .message-content {
  background: var(--user-bubble);
  color: white;
  border-radius: 16px 16px 4px 16px;
}

/* ============================================================================
   로딩 인디케이터
   ============================================================================ */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px;
  color: var(--text-secondary);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================================================
   입력 영역
   ============================================================================ */

.input-area {
  padding: 16px;
  background: white;
  border-top: 1px solid var(--border);
}

.input-wrapper {
  display: flex;
  gap: 8px;
  max-width: 800px;
  margin: 0 auto;
}

.input-wrapper textarea {
  flex: 1;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: var(--font-size-xs);
  font-family: inherit;
  resize: none;
}

.input-wrapper textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.send-btn {
  padding: 12px 16px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.send-btn:hover {
  background: var(--primary-dark);
}

/* ============================================================================
   다중 서비스 Floating Stepper
   ============================================================================ */

.service-stepper {
  background: var(--bg-primary, #ffffff);
  border-bottom: 1px solid var(--border-color, #e5e7eb);
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.stepper-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.stepper-track::-webkit-scrollbar {
  display: none;
}

.stepper-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  min-width: 64px;
}

.stepper-indicator {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: calc(9.6px * var(--font-scale));
  font-weight: 600;
  transition: all 0.3s ease;
}

.stepper-step.pending .stepper-indicator {
  background: var(--bg-secondary, #f3f4f6);
  color: var(--text-secondary, #9ca3af);
  border: 2px solid var(--border-color, #e5e7eb);
}

.stepper-step.active .stepper-indicator {
  background: var(--primary-color, #ff5000);
  color: #ffffff;
  border: 2px solid var(--primary-color, #ff5000);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
}

.stepper-step.completed .stepper-indicator {
  background: var(--success-color, #10b981);
  color: #ffffff;
  border: 2px solid var(--success-color, #10b981);
}

.stepper-check {
  font-size: calc(11.2px * var(--font-scale));
  line-height: 1;
}

.stepper-number {
  font-size: calc(9.6px * var(--font-scale));
  line-height: 1;
}

.stepper-label {
  margin-top: 4px;
  font-size: calc(8.8px * var(--font-scale));
  font-weight: 500;
  color: var(--text-secondary, #6b7280);
  white-space: nowrap;
  text-align: center;
}

.stepper-step.active .stepper-label {
  color: var(--primary-color, #ff5000);
  font-weight: 700;
}

.stepper-step.completed .stepper-label {
  color: var(--success-color, #10b981);
}

.stepper-connector {
  width: 24px;
  height: 2px;
  background: var(--border-color, #e5e7eb);
  flex-shrink: 0;
  margin-bottom: 18px;
  transition: background 0.3s ease;
}

.stepper-connector.completed {
  background: var(--success-color, #10b981);
}

.stepper-summary {
  text-align: center;
  font-size: calc(8.8px * var(--font-scale));
  color: var(--text-tertiary, #9ca3af);
  margin-top: 6px;
}

@media (max-width: 768px) {
  .service-stepper {
    padding: 8px 12px;
  }

  .stepper-step {
    min-width: 52px;
  }

  .stepper-indicator {
    width: 24px;
    height: 24px;
    font-size: calc(8px * var(--font-scale));
  }

  .stepper-label {
    font-size: calc(8px * var(--font-scale));
  }

  .stepper-connector {
    width: 16px;
    margin-bottom: 16px;
  }

  .stepper-summary {
    font-size: calc(8px * var(--font-scale));
  }
}