/*
   The Helper Ministry 공용 스타일시트
   - 전역 디자인 토큰
   - 고정 헤더 + 네비게이션 (모바일 햄버거 포함)
   순수 HTML 3페이지(index, seminar, jeremiah)가 공통으로 사용합니다.
*/

:root {
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-serif: 'Noto Serif KR', Georgia, serif;
  --color-text-primary: #111111;
  --color-text-secondary: #444444;
  --color-text-tertiary: #767676;
  --color-border-tertiary: #e5e7eb;
  --theme-blue: #6690b9;
  --border-radius-md: 6px;
  --border-radius-lg: 8px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

body, h1, h2, h3, h4, h5, h6, p, a, button, span, div, li, nav, .title, .intro {
  font-family: 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  letter-spacing: -0.02em;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .title, .logo-title {
  font-weight: 700;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ====== 페이지 첫 섹션(히어로) 상단 오프셋 (고정 헤더 회피) ====== */
.offset-header,
.hero,
.promo {
  padding-top: 140px !important;
}

/* ====== 고정 헤더 ====== */
#unified-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border-tertiary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
  z-index: 10000;
}

.header-flex-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.custom-logo {
  margin: 0;
  padding: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}
.custom-logo a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.custom-nav-frame { display: block; }

.custom-nav-list {
  list-style: none;
  display: flex;
  flex-direction: row;
  align-items: center;
}
.custom-nav-list .nav-item {
  margin-right: 25px;
}
.custom-nav-list .nav-item.last { margin-right: 0; }
.custom-nav-list .nav-item a {
  color: var(--color-text-secondary);
  font-size: 15px;
  padding: 10px 5px;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}
.custom-nav-list .nav-item a:hover { color: var(--theme-blue); }

.custom-hamburger-btn { display: none; }

/* ====== 모바일 (768px 이하) ====== */
@media (max-width: 768px) {
  .offset-header,
  .hero,
  .promo {
    padding-top: 110px !important;
  }

  #unified-header {
    height: 70px;
  }

  .custom-hamburger-btn {
    display: block;
    width: 22px;
    height: 16px;
    position: relative;
    cursor: pointer;
    background: none;
    border: none;
    z-index: 10005;
  }
  .custom-hamburger-btn span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: #111111;
    border-radius: 2px;
    transition: all 0.2s ease-in-out;
  }
  .custom-hamburger-btn span:nth-child(1) { top: 0px; }
  .custom-hamburger-btn span:nth-child(2) { top: 7px; }
  .custom-hamburger-btn span:nth-child(3) { top: 14px; }

  .custom-menu-box {
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--color-border-tertiary);
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    display: block;
    visibility: hidden;
    transition: max-height 0.25s ease-in-out;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    z-index: 10002;
  }

  .custom-menu-box.box-open {
    max-height: 380px;
    padding: 10px 20px;
    visibility: visible;
  }

  .custom-hamburger-btn.btn-active span:nth-child(1) { top: 7px; transform: rotate(135deg); }
  .custom-hamburger-btn.btn-active span:nth-child(2) { opacity: 0; }
  .custom-hamburger-btn.btn-active span:nth-child(3) { top: 7px; transform: rotate(-135deg); }

  .custom-nav-list {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
  }
  .custom-nav-list .nav-item {
    display: block;
    width: 100%;
    margin-right: 0;
  }
  .custom-nav-list .nav-item a {
    font-size: 15px;
    padding: 12px 0;
    display: block;
    border-bottom: 1px solid #f5f5f5;
  }
  .custom-nav-list .nav-item.last a { border-bottom: none; }
}

/* ====== 공용 푸터 (세 페이지 모두 동일) ====== */
.footer-clean {
  padding: 2rem 0;
  background: #111111;
  color: #767676;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.05em;
}