/* ================================================
   생일까지 카운트다운 스타일
   ================================================ */

/* 전역 box-sizing */
.bday-countdown-container,
.bday-countdown-container *,
.bday-countdown-container *::before,
.bday-countdown-container *::after {
  box-sizing: border-box;
}

/* 🎨 라이트 모드 (기본) */
.bday-countdown-container {
  /* 배경색 */
  --bg-primary: #f5f5f0;
  --bg-secondary: #fff;
  --bg-section: #fff;

  /* 테두리 */
  --border-color: #333;

  /* 텍스트 */
  --text-primary: #222;
  --text-secondary: #555;
  --text-light: #666;

  /* 브랜드 색상 */
  --color-accent: #3498db;
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #e74c3c;
  --color-purple: #9b59b6;
  --color-teal: #1abc9c;

  /* 그림자 (네오브루탈리즘) */
  --shadow-sm: 2px 2px 0 rgba(0,0,0,0.1);
  --shadow-md: 4px 4px 0 rgba(0,0,0,0.15);
  --shadow-lg: 8px 8px 0 rgba(0,0,0,0.15);

  /* 입력 포커스 */
  --input-focus-bg: #fffacd;

  /* 헤더 타이틀 */
  --title-color: #2c3e50;
  --title-shadow: 2px 2px 0 rgba(255,255,255,0.5);

  /* 버튼 호버 배경 */
  --btn-hover-overlay: rgba(0,0,0,0.1);

  /* 복사 버튼 배경 */
  --copy-btn-bg: #fff;
  --copy-btn-hover-bg: #f0f0f0;
}

/* 🌙 수동 다크 모드 */
.bday-countdown-container.dark {
  /* 배경색 */
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-section: #2d2d2d;

  /* 테두리 */
  --border-color: #e0e0e0;

  /* 텍스트 */
  --text-primary: #e8e8e8;
  --text-secondary: #b0b0b0;
  --text-light: #909090;

  /* 브랜드 색상 */
  --color-accent: #5dade2;
  --color-success: #52c77a;
  --color-warning: #f5b041;
  --color-danger: #ec7063;
  --color-purple: #af7ac5;
  --color-teal: #48d1cc;

  /* 그림자 */
  --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
  --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
  --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);

  /* 입력 포커스 */
  --input-focus-bg: #3a3a3a;

  /* 헤더 타이틀 */
  --title-color: #5dade2;
  --title-shadow: 2px 2px 0 rgba(0,0,0,0.3);

  /* 버튼 호버 배경 */
  --btn-hover-overlay: rgba(255,255,255,0.1);

  /* 복사 버튼 배경 */
  --copy-btn-bg: #2d2d2d;
  --copy-btn-hover-bg: #3a3a3a;
}

/* 🌙 시스템 다크모드 자동 감지 (수동 설정이 없을 때만 적용) */
@media (prefers-color-scheme: dark) {
  .bday-countdown-container:not(.dark):not(.light) {
    /* 배경색 */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-section: #2d2d2d;

    /* 테두리 */
    --border-color: #e0e0e0;

    /* 텍스트 */
    --text-primary: #e8e8e8;
    --text-secondary: #b0b0b0;
    --text-light: #909090;

    /* 브랜드 색상 */
    --color-accent: #5dade2;
    --color-success: #52c77a;
    --color-warning: #f5b041;
    --color-danger: #ec7063;
    --color-purple: #af7ac5;
    --color-teal: #48d1cc;

    /* 그림자 */
    --shadow-sm: 2px 2px 0 rgba(255,255,255,0.08);
    --shadow-md: 4px 4px 0 rgba(255,255,255,0.12);
    --shadow-lg: 8px 8px 0 rgba(255,255,255,0.12);

    /* 입력 포커스 */
    --input-focus-bg: #3a3a3a;

    /* 헤더 타이틀 */
    --title-color: #5dade2;
    --title-shadow: 2px 2px 0 rgba(0,0,0,0.3);

    /* 버튼 호버 배경 */
    --btn-hover-overlay: rgba(255,255,255,0.1);

    /* 복사 버튼 배경 */
    --copy-btn-bg: #2d2d2d;
    --copy-btn-hover-bg: #3a3a3a;
  }
}

/* 📦 메인 컨테이너 */
.bday-countdown-container {
  position: relative;
  max-width: 900px;
  margin: 15px auto;
  padding: 12px;
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: 0;
  box-shadow: var(--shadow-lg);
  font-family: 'Noto Sans KR', 'Malgun Gothic', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  line-height: 1.5;
}

/* 🎨 헤더 */
.bday-header {
  position: relative;
  margin-bottom: 15px;
  padding-bottom: 12px;
  border-bottom: 3px double var(--border-color);
  text-align: center;
}

.bday-header-content {
  position: relative;
  margin-bottom: 6px;
}

.bday-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--title-color);
  margin: 0;
  text-shadow: var(--title-shadow);
  text-align: center;
  line-height: 1.2;
}

.bday-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 0 0 8px 0;
  line-height: 1.4;
}

/* 현재 시간 표시 */
.bday-current-time {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  font-family: 'Courier New', monospace;
  padding: 6px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  margin: 0 auto;
}

/* 다크모드 토글 버튼 */
.bday-dark-mode-toggle {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--copy-btn-bg);
  border: 1px solid var(--border-color);
  border-radius: 0;
  padding: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  color: var(--text-primary);
  z-index: 10;
}

.bday-dark-mode-toggle:hover {
  background: var(--copy-btn-hover-bg);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.15);
}

.bday-dark-mode-toggle:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

/* 📐 2열 그리드 레이아웃 */
.bday-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* 섹션 */
.bday-section {
  background: var(--bg-section);
  border: 1px solid var(--border-color);
  border-radius: 0;
  padding: 12px;
  box-shadow: var(--shadow-md);
}

.bday-section-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 12px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  line-height: 1.2;
}

/* 섹션별 타이틀 색상 */
.bday-input-section .bday-section-title {
  color: var(--color-accent);
}

.bday-result-section .bday-section-title {
  color: var(--color-success);
}

/* 입력 그룹 */
.bday-input-group {
  margin-bottom: 12px;
}

.bday-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.bday-input,
.bday-select {
  width: 100%;
  padding: 10px;
  font-size: 15px;
  font-family: 'Noto Sans KR', sans-serif;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.bday-input:focus,
.bday-select:focus {
  outline: none;
  background: var(--input-focus-bg);
  border-color: var(--color-accent);
}

/* 버튼 공통 */
.bday-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 11px 16px;
  font-size: 15px;
  font-weight: 600;
  font-family: 'Noto Sans KR', sans-serif;
  border-radius: 0;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  color: #fff;
  line-height: 1;
}

.bday-btn-icon {
  flex-shrink: 0;
}

/* 주요 버튼 (계산하기) - 1.5px 테두리 */
.bday-btn-primary {
  background: var(--color-accent);
  border: 1.5px solid var(--border-color);
  box-shadow: var(--shadow-md);
  width: 100%;
  margin-bottom: 10px;
}

.bday-btn-primary:hover {
  background: var(--color-accent);
  filter: brightness(1.1);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.2);
}

.bday-btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0,0,0,0.15);
}

/* 보조 버튼 그룹 */
.bday-btn-group {
  display: flex;
  gap: 8px;
}

/* 보조 버튼 - 1px 테두리 */
.bday-btn-secondary,
.bday-btn-warning {
  flex: 1;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  padding: 9px 12px;
}

.bday-btn-secondary {
  background: var(--color-purple);
}

.bday-btn-warning {
  background: var(--color-warning);
}

.bday-btn-secondary:hover,
.bday-btn-warning:hover {
  filter: brightness(1.1);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}

.bday-btn-secondary:active,
.bday-btn-warning:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

/* 성공 버튼 (복사) - 1px 테두리 */
.bday-btn-success {
  background: var(--color-success);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.bday-btn-success:hover {
  filter: brightness(1.1);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 rgba(0,0,0,0.2);
}

.bday-btn-success:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

/* 결과 카드 - 날짜 */
.bday-result-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0;
  padding: 12px;
  margin-bottom: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.bday-result-date-card {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.bday-result-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 600;
}

.bday-result-value {
  font-size: 32px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--color-accent);
  margin-bottom: 4px;
  word-break: break-all;
  line-height: 1.2;
}

.bday-result-value-small {
  font-size: 18px;
}

/* 실시간 카운트다운 그리드 */
.bday-countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.bday-countdown-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0;
  padding: 12px 8px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.bday-countdown-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.bday-countdown-value {
  font-size: 28px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}

.bday-countdown-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 밀리초 표시 */
.bday-milliseconds-display {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0;
  padding: 10px;
  margin-bottom: 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.bday-milliseconds-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
}

.bday-milliseconds-value {
  font-size: 20px;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--color-teal);
  min-width: 60px;
}

/* 정보 박스 */
.bday-info-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0;
  padding: 12px;
  margin-top: 12px;
  box-shadow: var(--shadow-sm);
}

.bday-info-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.bday-info-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 🔔 토스트 알림 */
.bday-toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--color-success);
  color: #fff;
  padding: 14px 20px;
  border: 1px solid var(--border-color);
  border-radius: 0;
  box-shadow: var(--shadow-md);
  font-size: 15px;
  font-weight: 600;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 1000;
  max-width: 300px;
}

.bday-toast.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* 📱 반응형 디자인 */
@media (max-width: 768px) {
  .bday-countdown-container {
    margin: 8px 5px;
    width: calc(100% - 10px);
    padding: 10px;
  }

  .bday-main-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .bday-title {
    font-size: 24px;
  }

  .bday-subtitle {
    font-size: 13px;
  }

  .bday-countdown-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
  }

  .bday-countdown-value {
    font-size: 24px;
  }

  .bday-toast {
    right: 10px;
    left: 10px;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .bday-countdown-container {
    margin: 8px;
    padding: 8px;
    border-width: 1px;
  }

  .bday-title {
    font-size: 22px;
  }

  .bday-subtitle {
    font-size: 12px;
  }

  .bday-section {
    padding: 8px;
  }

  .bday-countdown-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .bday-countdown-value {
    font-size: 20px;
  }

  .bday-btn-group {
    flex-direction: column;
    gap: 6px;
  }

  .bday-btn-secondary,
  .bday-btn-warning {
    width: 100%;
  }
}