/*
Theme Name: SEON Coder Child Theme
Template: generatepress
Description: 세온코더 웹사이트 - 구독율 극대화 및 AI SEO 최적화를 위한 자식 테마
Author: SEON Coder Team
Version: 1.0.0
*/

/* ========================================
   Pretendard 웹폰트 로드
   ======================================== */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

/* ========================================
   CSS 변수 정의
   ======================================== */
:root {
  /* 브랜드 컬러 */
  --color-primary: #06283d;      /* 네이비 - 신뢰감, 전문성 */
  --color-accent: #47b5ff;       /* 블루 - 강조, CTA */
  --color-highlight: #e7cea6;    /* 베이지 골드 - 프리미엄 */
  --color-bg: #f4f4f4;          /* 배경 */
  --color-text: #161616;        /* 본문 텍스트 */

  /* 타이포그래피 */
  --font-family-base: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
  --font-size-hero-h1: 3.5rem;   /* 56px */
  --font-size-hero-p: 1.25rem;   /* 20px */
  --line-height-tight: 1.2;
  --line-height-normal: 1.6;

  /* 여백 (Avada Investment 스타일) */
  --spacing-hero-padding: 120px 0;
  --spacing-section-gap: 80px;
  --container-max-width: 1200px;
}

/* ========================================
   전역 폰트 설정
   ======================================== */
body,
html {
  font-family: var(--font-family-base);
  color: var(--color-text);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   히어로 섹션 스타일
   ======================================== */
.hero-section {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: var(--spacing-hero-padding);
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-content {
  max-width: 600px;
}

.hero-section h1 {
  font-size: var(--font-size-hero-h1);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: 30px;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.hero-section p {
  font-size: var(--font-size-hero-p);
  line-height: var(--line-height-normal);
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
}

.hero-image-placeholder {
  position: relative;
  width: 100%;
  height: 500px;
  background: linear-gradient(135deg, rgba(71, 181, 255, 0.1) 0%, rgba(231, 206, 166, 0.1) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px dashed rgba(255, 255, 255, 0.2);
}

.hero-image-placeholder::before {
  content: '히어로 이미지 영역';
  color: rgba(255, 255, 255, 0.5);
  font-size: 1rem;
  font-weight: 500;
}

/* ========================================
   반응형 (태블릿 이하)
   ======================================== */
@media (max-width: 968px) {
  :root {
    --font-size-hero-h1: 2.5rem;   /* 40px */
    --font-size-hero-p: 1.125rem;  /* 18px */
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 0 24px;
  }

  .hero-section {
    min-height: auto;
    padding: 80px 0;
  }

  .hero-image-placeholder {
    height: 400px;
  }
}

/* ========================================
   모바일
   ======================================== */
@media (max-width: 600px) {
  :root {
    --font-size-hero-h1: 2rem;     /* 32px */
    --font-size-hero-p: 1rem;      /* 16px */
  }

  .hero-section {
    padding: 60px 0;
  }

  .hero-container {
    padding: 0 20px;
  }

  .hero-image-placeholder {
    height: 300px;
  }
}

/* ========================================
   문제 제기 및 데이터 대비 섹션
   50대 사장님 타겟 - 시원한 폰트 + 명확한 대비
   ======================================== */
.problem-solution-section {
  background-color: var(--color-bg);
  padding: 100px 0;
  position: relative;
}

.problem-solution-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* 섹션 헤더 */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;        /* 40px - 50대도 잘 보이는 크기 */
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.375rem;      /* 22px - 서브타이틀도 크게 */
  color: var(--color-text);
  font-weight: 400;
  line-height: 1.6;
}

/* 강조 텍스트 스타일 */
.highlight-accent {
  color: var(--color-accent);
  font-weight: 600;
  position: relative;
}

.highlight-problem {
  color: #d32f2f;          /* 레드 - 문제점 강조 */
  font-weight: 600;
}

/* 좌우 대비 그리드 */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 40px;
}

/* 비교 박스 공통 스타일 */
.comparison-box {
  background: #ffffff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.comparison-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* 문제점 박스 (왼쪽) */
.comparison-box--problem {
  border: 2px solid #e0e0e0;
}

/* 솔루션 박스 (오른쪽) - 강조 */
.comparison-box--solution {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a3a56 100%);
  color: #ffffff;
  border: 2px solid var(--color-accent);
  position: relative;
  overflow: hidden;
}

.comparison-box--solution::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(71, 181, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

/* 박스 헤더 */
.comparison-box-header {
  margin-bottom: 30px;
}

.box-label {
  display: inline-block;
  font-size: 0.875rem;     /* 14px */
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.box-label--problem {
  background: #ffebee;
  color: #d32f2f;
}

.box-label--solution {
  background: rgba(71, 181, 255, 0.2);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.comparison-box h3 {
  font-size: 1.75rem;      /* 28px - 크고 명확하게 */
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin: 0;
}

.comparison-box--solution h3 {
  color: #ffffff;
}

/* 이미지 플레이스홀더 */
.comparison-image-placeholder {
  width: 100%;
  height: 280px;
  background: var(--color-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
  border: 2px dashed #d0d0d0;
  position: relative;
}

.comparison-image-placeholder::before {
  content: attr(data-type);
  text-transform: uppercase;
  color: #999;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 1px;
}

.comparison-box--solution .comparison-image-placeholder {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(71, 181, 255, 0.3);
}

.comparison-box--solution .comparison-image-placeholder::before {
  color: rgba(255, 255, 255, 0.5);
}

/* 통계 수치 영역 */
.comparison-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.stat-item {
  text-align: center;
  padding: 20px 10px;
  background: var(--color-bg);
  border-radius: 12px;
  transition: transform 0.2s ease;
}

.stat-item:hover {
  transform: scale(1.05);
}

.comparison-box--solution .stat-item {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(71, 181, 255, 0.3);
}

.stat-number {
  display: block;
  font-size: 2rem;         /* 32px - 50대가 한눈에 보는 크기 */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-item--negative .stat-number {
  color: #d32f2f;
}

.stat-item--positive .stat-number {
  color: var(--color-accent);
}

.comparison-box--solution .stat-item--positive .stat-number {
  color: var(--color-highlight);  /* 골드 컬러로 성과 강조 */
  text-shadow: 0 0 20px rgba(231, 206, 166, 0.3);
}

.stat-label {
  display: block;
  font-size: 0.875rem;     /* 14px */
  color: #666;
  font-weight: 500;
}

.comparison-box--solution .stat-label {
  color: rgba(255, 255, 255, 0.8);
}

/* 비교 설명 텍스트 */
.comparison-description {
  font-size: 1.25rem;      /* 20px - 50대 타겟, 시원하게 */
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
  font-weight: 400;
}

.comparison-box--solution .comparison-description {
  color: rgba(255, 255, 255, 0.95);
}

.comparison-description strong {
  font-weight: 600;
  color: var(--color-primary);
}

.comparison-box--solution .comparison-description strong {
  color: #ffffff;
  font-weight: 700;
}

/* 스크린 리더 전용 텍스트 */
.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;
}

/* ========================================
   문제-솔루션 섹션 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .problem-solution-section {
    padding: 80px 0;
  }

  .problem-solution-container {
    padding: 0 24px;
  }

  .section-header h2 {
    font-size: 2rem;         /* 32px */
  }

  .section-subtitle {
    font-size: 1.125rem;     /* 18px */
  }

  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .comparison-box {
    padding: 30px;
  }

  .comparison-box h3 {
    font-size: 1.5rem;       /* 24px */
  }

  .comparison-image-placeholder {
    height: 240px;
  }

  .stat-number {
    font-size: 1.75rem;      /* 28px */
  }

  .comparison-description {
    font-size: 1.125rem;     /* 18px */
  }
}

/* ========================================
   문제-솔루션 섹션 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .problem-solution-section {
    padding: 60px 0;
  }

  .problem-solution-container {
    padding: 0 20px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-header h2 {
    font-size: 1.75rem;      /* 28px */
  }

  .section-subtitle {
    font-size: 1rem;         /* 16px */
  }

  .comparison-box {
    padding: 24px;
  }

  .comparison-box h3 {
    font-size: 1.375rem;     /* 22px */
  }

  .comparison-image-placeholder {
    height: 200px;
  }

  .comparison-stats {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .stat-item {
    padding: 16px;
  }

  .stat-number {
    font-size: 1.5rem;       /* 24px */
  }

  .comparison-description {
    font-size: 1rem;         /* 16px */
  }
}

/* ========================================
   GEO 전자책 리드 마그넷 섹션
   이메일 수집 + 무료 다운로드 오퍼
   ======================================== */
.geo-ebook-lead {
  background-color: var(--color-bg);
  padding: 120px 0;
  position: relative;
}

.geo-ebook-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* 1:1 좌우 그리드 */
.geo-ebook-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* 왼쪽: 전자책 커버 이미지 */
.geo-ebook-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.ebook-cover-placeholder {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 5 / 7;      /* 전자책 비율 */
  margin: 0;
}

/* 전자책 목업 (실제 이미지 대체) */
.ebook-mockup {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a3a56 100%);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  position: relative;
  overflow: hidden;
}

.ebook-mockup::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(71, 181, 255, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

.ebook-title {
  font-size: 2rem;
  font-weight: 700;
  color: #ffffff;
  text-align: center;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.ebook-subtitle {
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-highlight);
  text-align: center;
  position: relative;
  z-index: 1;
}

/* 오른쪽: 콘텐츠 */
.geo-ebook-content {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.geo-ebook-header h2 {
  font-size: 2rem;          /* 32px - 50대 가독성 */
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

.geo-ebook-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

.geo-ebook-description strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* 전자책 혜택 리스트 */
.geo-ebook-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.geo-ebook-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
}

.benefit-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  line-height: 1;
}

.benefit-text {
  flex: 1;
}

/* 이메일 수집 폼 */
.geo-ebook-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  width: 100%;
}

.form-input {
  width: 100%;
  padding: 16px 20px;
  font-size: 1rem;
  font-family: var(--font-family-base);
  color: var(--color-text);
  background: #ffffff;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(71, 181, 255, 0.1);
}

.form-input::placeholder {
  color: #999;
}

/* 전자책 다운로드 버튼 */
.btn-ebook-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 36px;
  font-size: 1.125rem;      /* 18px */
  font-weight: 700;
  color: #ffffff;
  background: var(--color-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(6, 40, 61, 0.3);
  font-family: var(--font-family-base);
  width: 100%;
}

.btn-ebook-download:hover {
  background: #0a3a56;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 40, 61, 0.4);
}

.btn-ebook-download:active {
  transform: translateY(0);
}

.btn-ebook-download .btn-icon {
  font-size: 1.5rem;
}

/* 폼 안내 문구 */
.form-notice {
  font-size: 0.875rem;
  color: #666;
  margin: 0;
  line-height: 1.5;
}

/* 신뢰 배지 */
.geo-trust-badge {
  text-align: center;
  padding: 16px;
  background: rgba(71, 181, 255, 0.1);
  border-radius: 8px;
  border: 1px solid rgba(71, 181, 255, 0.2);
}

.trust-stat {
  font-size: 1rem;
  color: var(--color-text);
  margin: 0;
}

.trust-stat strong {
  color: var(--color-accent);
  font-size: 1.25rem;
  font-weight: 700;
}

/* ========================================
   GEO 전자책 섹션 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .geo-ebook-lead {
    padding: 80px 0;
  }

  .geo-ebook-container {
    padding: 0 24px;
  }

  .geo-ebook-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .ebook-cover-placeholder {
    max-width: 320px;
  }

  .geo-ebook-header h2 {
    font-size: 1.75rem;     /* 28px */
  }

  .geo-ebook-description {
    font-size: 1rem;
  }
}

/* ========================================
   GEO 전자책 섹션 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .geo-ebook-lead {
    padding: 60px 0;
  }

  .geo-ebook-container {
    padding: 0 20px;
  }

  .geo-ebook-grid {
    gap: 30px;
  }

  .ebook-cover-placeholder {
    max-width: 280px;
  }

  .ebook-title {
    font-size: 1.5rem;
  }

  .ebook-subtitle {
    font-size: 1rem;
  }

  .geo-ebook-header h2 {
    font-size: 1.5rem;      /* 24px */
  }

  .geo-ebook-description {
    font-size: 0.9375rem;
  }

  .geo-ebook-benefits li {
    font-size: 0.9375rem;
  }

  .benefit-icon {
    font-size: 1.125rem;
  }

  .form-input {
    padding: 14px 16px;
    font-size: 0.9375rem;
  }

  .btn-ebook-download {
    padding: 16px 28px;
    font-size: 1rem;
  }

  .form-notice {
    font-size: 0.8125rem;
  }

  .trust-stat {
    font-size: 0.9375rem;
  }

  .trust-stat strong {
    font-size: 1.125rem;
  }
}

/* ========================================
   교육 영상 섹션 (3단계)
   YouTube 임베드 + 시청 추적 + CTA 활성화
   ======================================== */
.education-video-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, #ffffff 100%);
  padding: 100px 0;
  position: relative;
}

.education-video-container {
  max-width: 900px;        /* 영상은 조금 좁게 (가독성) */
  margin: 0 auto;
  padding: 0 40px;
}

/* YouTube 영상 래퍼 (16:9 비율 유지) */
.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;  /* 16:9 비율 */
  margin: 40px 0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
}

#youtube-player-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#youtube-player {
  width: 100%;
  height: 100%;
}

/* 영상 로딩 플레이스홀더 */
.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  z-index: 1;
}

.video-placeholder-content {
  text-align: center;
}

.video-icon {
  color: var(--color-accent);
  margin-bottom: 20px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.1);
  }
}

.video-placeholder p {
  font-size: 1.125rem;
  font-weight: 500;
  margin: 0;
}

/* 시청 상태 표시 바 */
.video-status-bar {
  background: #ffffff;
  border: 2px solid var(--color-bg);
  border-radius: 12px;
  padding: 20px 30px;
  margin: 30px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.status-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-icon {
  font-size: 1.5rem;
}

.status-text {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
}

/* 진행률 표시기 */
.progress-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 400px;
}

.progress-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #666;
  white-space: nowrap;
}

.progress-bar-container {
  flex: 1;
  height: 12px;
  background: var(--color-bg);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-highlight) 100%);
  border-radius: 6px;
  transition: width 0.3s ease;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.3) 50%, transparent 100%);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.progress-percentage {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 45px;
  text-align: right;
}

/* CTA 섹션 */
.cta-section {
  margin-top: 50px;
  text-align: center;
}

/* 안내 메시지 박스 */
.cta-notice {
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  border-radius: 8px;
  padding: 20px 30px;
  margin-bottom: 30px;
  transition: all 0.3s ease;
}

.cta-notice.success {
  background: #d4edda;
  border-left-color: #28a745;
}

.notice-text {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-text);
  margin: 0;
}

.cta-notice.success .notice-text {
  color: #155724;
}

/* 베타 테스터 신청 버튼 (핵심!) */
.btn-beta-apply {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 20px 40px;
  font-size: 1.25rem;        /* 50대 타겟 - 큰 폰트 */
  font-weight: 700;
  color: #ffffff;
  background: #9e9e9e;       /* disabled 상태: 회색 */
  border: none;
  border-radius: 50px;
  cursor: not-allowed;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  font-family: var(--font-family-base);
}

.btn-beta-apply:disabled {
  opacity: 0.6;
}

/* 버튼 활성화 상태 (시청 완료 후) */
.btn-beta-apply.active {
  background: linear-gradient(135deg, var(--color-accent) 0%, #2196f3 100%);
  cursor: pointer;
  opacity: 1;
  animation: buttonPulse 2s ease-in-out infinite;
}

.btn-beta-apply.active:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(71, 181, 255, 0.4);
}

.btn-beta-apply.active:active {
  transform: translateY(-1px);
}

@keyframes buttonPulse {
  0%, 100% {
    box-shadow: 0 4px 15px rgba(71, 181, 255, 0.3);
  }
  50% {
    box-shadow: 0 4px 30px rgba(71, 181, 255, 0.6);
  }
}

.btn-icon {
  font-size: 1.5rem;
}

.btn-text {
  font-size: 1.25rem;
}

/* 버튼 배지 (상태 표시) */
.btn-badge {
  position: absolute;
  top: -10px;
  right: -10px;
  background: #f44336;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  white-space: nowrap;
}

.btn-badge.active {
  background: #4caf50;
  animation: badgeBounce 0.5s ease;
}

@keyframes badgeBounce {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.2);
  }
}

/* 베타 테스터 혜택 안내 */
.beta-benefits {
  margin-top: 50px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a3a56 100%);
  color: #ffffff;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  text-align: left;
}

.beta-benefits h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-highlight);
  margin-bottom: 24px;
  text-align: center;
}

.beta-benefits ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.beta-benefits li {
  font-size: 1.125rem;
  line-height: 1.8;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 12px;
}

.beta-benefits li:last-child {
  border-bottom: none;
}

.beta-benefits strong {
  color: #ffffff;
  font-weight: 600;
}

/* ========================================
   교육 영상 섹션 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .education-video-section {
    padding: 80px 0;
  }

  .education-video-container {
    padding: 0 24px;
  }

  .video-status-bar {
    flex-direction: column;
    gap: 20px;
    padding: 20px;
  }

  .progress-indicator {
    max-width: 100%;
    width: 100%;
  }

  .btn-beta-apply {
    padding: 18px 36px;
    font-size: 1.125rem;
  }

  .btn-text {
    font-size: 1.125rem;
  }

  .beta-benefits {
    padding: 30px;
  }

  .beta-benefits h3 {
    font-size: 1.5rem;
  }

  .beta-benefits li {
    font-size: 1rem;
  }
}

/* ========================================
   교육 영상 섹션 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .education-video-section {
    padding: 60px 0;
  }

  .education-video-container {
    padding: 0 20px;
  }

  .video-wrapper {
    border-radius: 12px;
    margin: 30px 0;
  }

  .video-status-bar {
    padding: 16px;
    gap: 16px;
  }

  .status-text {
    font-size: 0.875rem;
  }

  .progress-label {
    font-size: 0.75rem;
  }

  .progress-bar-container {
    height: 10px;
  }

  .progress-percentage {
    font-size: 0.75rem;
    min-width: 40px;
  }

  .notice-text {
    font-size: 1rem;
  }

  .btn-beta-apply {
    width: 100%;
    padding: 16px 24px;
    font-size: 1rem;
  }

  .btn-text {
    font-size: 1rem;
  }

  .btn-badge {
    font-size: 0.625rem;
    padding: 3px 8px;
  }

  .beta-benefits {
    padding: 24px;
  }

  .beta-benefits h3 {
    font-size: 1.375rem;
  }

  .beta-benefits li {
    font-size: 0.9375rem;
    padding: 10px 0;
  }
}

/* ========================================
   성공 사례 섹션 (4단계 - 신뢰 구축)
   3개 카드 레이아웃 + Schema.org Review
   ======================================== */
.case-studies-section {
  background: #ffffff;
  padding: 120px 0;
  position: relative;
}

.case-studies-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

/* 성공 사례 카드 그리드 */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

/* 카드 공통 스타일 */
.case-card {
  background: #ffffff;
  border: 2px solid var(--color-bg);
  border-radius: 16px;
  padding: 30px;
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  border-color: var(--color-accent);
}

/* Featured 카드 (중앙) */
.case-card--featured {
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-color: var(--color-accent);
  box-shadow: 0 8px 30px rgba(71, 181, 255, 0.15);
}

.case-featured-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, #ffd700 0%, #ffa500 100%);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 20px;
  box-shadow: 0 4px 15px rgba(255, 165, 0, 0.4);
}

/* 카드 헤더 */
.case-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 15px;
}

.case-industry {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg);
  padding: 8px 16px;
  border-radius: 8px;
}

.case-result {
  text-align: right;
}

.result-number {
  display: block;
  font-size: 2.25rem;       /* 36px - 큰 숫자 */
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 4px;
}

.case-card--featured .result-number {
  color: #ffa500;
  font-size: 2.5rem;        /* 40px - Featured는 더 크게 */
}

.result-label {
  font-size: 0.875rem;
  color: #666;
  font-weight: 500;
}

/* 카드 콘텐츠 */
.case-content {
  flex: 1;
}

.case-quote {
  font-size: 1.0625rem;     /* 17px - 50대 가독성 */
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 20px 0;
  padding: 0;
  border: none;
  font-style: normal;
}

.case-quote strong {
  color: var(--color-primary);
  font-weight: 600;
}

.case-author {
  display: block;
  font-style: normal;
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid var(--color-bg);
}

.author-name {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.author-company {
  display: block;
  font-size: 0.875rem;
  color: #666;
}

/* 카드 메트릭스 */
.case-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--color-bg);
}

.metric-item {
  text-align: center;
  padding: 12px;
  background: var(--color-bg);
  border-radius: 8px;
}

.metric-label {
  display: block;
  font-size: 0.75rem;
  color: #666;
  margin-bottom: 4px;
}

.metric-value {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-accent);
}

/* 신뢰 배지 영역 */
.trust-badges {
  text-align: center;
  margin-top: 60px;
  padding: 30px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a3a56 100%);
  border-radius: 12px;
}

.trust-text {
  font-size: 1.25rem;
  color: #ffffff;
  margin: 0;
}

.trust-text strong {
  color: var(--color-highlight);
  font-size: 1.5rem;
}

/* ========================================
   FAQ 섹션 (4단계 - 신뢰 구축)
   시맨틱 details/summary + FAQPage 스키마
   ======================================== */
.faq-section {
  background: var(--color-bg);
  padding: 120px 0;
  position: relative;
}

.faq-container {
  max-width: 900px;         /* FAQ는 좁게 (가독성) */
  margin: 0 auto;
  padding: 0 40px;
}

/* FAQ 리스트 */
.faq-list {
  margin-top: 50px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* FAQ 아이템 (details) */
.faq-item {
  background: #ffffff;
  border: 2px solid #e0e0e0;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: var(--color-accent);
}

.faq-item[open] {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(71, 181, 255, 0.1);
}

/* FAQ 질문 (summary) */
.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 30px;
  cursor: pointer;
  list-style: none;          /* Remove default marker */
  user-select: none;
  transition: background 0.2s ease;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question:hover {
  background: var(--color-bg);
}

.faq-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.faq-question-text {
  flex: 1;
  font-size: 1.125rem;       /* 18px - 50대 타겟 */
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.4;
}

.faq-toggle {
  flex-shrink: 0;
  font-size: 1.25rem;
  color: var(--color-accent);
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-toggle {
  transform: rotate(180deg);
}

/* FAQ 답변 */
.faq-answer {
  padding: 0 30px 30px 78px;  /* 왼쪽 여백을 아이콘 + 갭만큼 */
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.faq-answer p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0 0 16px 0;
}

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

.faq-answer strong {
  color: var(--color-primary);
  font-weight: 600;
}

.faq-answer ul {
  margin: 16px 0;
  padding-left: 20px;
}

.faq-answer li {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 8px;
}

.highlight-text {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
  border-left: 4px solid #ffc107;
  padding: 12px 20px;
  border-radius: 8px;
  margin-top: 16px;
  font-size: 1.0625rem;
  font-weight: 600;
  color: #856404;
}

/* ========================================
   최종 CTA 섹션 (4단계 - 최종 전환)
   영상 시청 완료 상태와 연동
   ======================================== */
.final-cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0a3a56 100%);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.final-cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(71, 181, 255, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.final-cta-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

.final-cta-content {
  text-align: center;
}

.final-cta-title {
  font-size: 2.5rem;          /* 40px */
  font-weight: 700;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.final-cta-description {
  font-size: 1.25rem;         /* 20px */
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.7;
  margin-bottom: 40px;
}

.final-cta-description strong {
  color: var(--color-highlight);
  font-weight: 600;
}

/* 최종 CTA 버튼 래퍼 */
.final-cta-button-wrapper {
  margin-bottom: 30px;
}

/* 최종 CTA 버튼 (기존 btn-beta-apply 스타일 상속) */
.btn-final-cta {
  font-size: 1.375rem;        /* 22px - 더 크게 */
  padding: 24px 48px;
}

.btn-final-cta .btn-text {
  font-size: 1.375rem;
}

/* 최종 CTA 안내 메시지 */
.final-cta-notice {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: 16px;
}

.final-cta-notice strong {
  color: var(--color-highlight);
}

/* 긴박감 타이머 */
.urgency-timer {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 20px 30px;
  backdrop-filter: blur(10px);
}

.urgency-text {
  font-size: 1.125rem;
  color: #ffffff;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.urgency-icon {
  font-size: 1.5rem;
  animation: urgencyBlink 1.5s ease-in-out infinite;
}

@keyframes urgencyBlink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ========================================
   성공 사례 섹션 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .case-studies-section {
    padding: 80px 0;
  }

  .case-studies-container {
    padding: 0 24px;
  }

  .case-studies-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .case-card {
    padding: 24px;
  }

  .result-number {
    font-size: 2rem;
  }

  .case-card--featured .result-number {
    font-size: 2.25rem;
  }

  .case-quote {
    font-size: 1rem;
  }

  .case-metrics {
    grid-template-columns: 1fr;
  }

  .trust-badges {
    margin-top: 40px;
    padding: 24px;
  }

  .trust-text {
    font-size: 1.125rem;
  }

  .trust-text strong {
    font-size: 1.375rem;
  }
}

/* ========================================
   FAQ 섹션 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .faq-section {
    padding: 80px 0;
  }

  .faq-container {
    padding: 0 24px;
  }

  .faq-question {
    padding: 20px 24px;
  }

  .faq-question-text {
    font-size: 1rem;
  }

  .faq-answer {
    padding: 0 24px 24px 68px;
  }
}

/* ========================================
   최종 CTA 섹션 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .final-cta-section {
    padding: 80px 0;
  }

  .final-cta-container {
    padding: 0 24px;
  }

  .final-cta-title {
    font-size: 2rem;
  }

  .final-cta-description {
    font-size: 1.125rem;
  }

  .btn-final-cta {
    font-size: 1.25rem;
    padding: 20px 40px;
  }

  .btn-final-cta .btn-text {
    font-size: 1.25rem;
  }
}

/* ========================================
   성공 사례 섹션 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .case-studies-section {
    padding: 60px 0;
  }

  .case-studies-container {
    padding: 0 20px;
  }

  .case-card {
    padding: 20px;
  }

  .case-card-header {
    flex-direction: column;
    gap: 12px;
  }

  .case-result {
    text-align: left;
  }

  .result-number {
    font-size: 1.75rem;
  }

  .case-card--featured .result-number {
    font-size: 2rem;
  }

  .case-quote {
    font-size: 0.9375rem;
  }

  .author-name {
    font-size: 0.9375rem;
  }

  .author-company {
    font-size: 0.8125rem;
  }

  .metric-item {
    padding: 10px;
  }

  .metric-value {
    font-size: 1rem;
  }

  .trust-badges {
    padding: 20px;
  }

  .trust-text {
    font-size: 1rem;
  }

  .trust-text strong {
    font-size: 1.25rem;
  }
}

/* ========================================
   FAQ 섹션 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .faq-section {
    padding: 60px 0;
  }

  .faq-container {
    padding: 0 20px;
  }

  .faq-question {
    padding: 16px 20px;
    gap: 12px;
  }

  .faq-icon {
    width: 28px;
    height: 28px;
    font-size: 0.875rem;
  }

  .faq-question-text {
    font-size: 0.9375rem;
  }

  .faq-toggle {
    font-size: 1.125rem;
  }

  .faq-answer {
    padding: 0 20px 20px 60px;
  }

  .faq-answer p,
  .faq-answer li {
    font-size: 0.9375rem;
  }

  .highlight-text {
    font-size: 1rem;
    padding: 10px 16px;
  }
}

/* ========================================
   최종 CTA 섹션 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .final-cta-section {
    padding: 60px 0;
  }

  .final-cta-container {
    padding: 0 20px;
  }

  .final-cta-title {
    font-size: 1.75rem;
  }

  .final-cta-description {
    font-size: 1rem;
  }

  .btn-final-cta {
    width: 100%;
    font-size: 1.125rem;
    padding: 18px 32px;
  }

  .btn-final-cta .btn-text {
    font-size: 1.125rem;
  }

  .urgency-timer {
    padding: 16px 20px;
  }

  .urgency-text {
    font-size: 1rem;
    flex-direction: column;
    gap: 8px;
  }
}

/* ========================================
   GEO 전자책 Success Modal (팝업)
   폼 전송 완료 시 영상 섹션으로 유도
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);      /* 반투명 검은색 배경 */
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 20px;
  backdrop-filter: blur(4px);
}

/* 모달 컨테이너 (애니메이션 적용) */
.modal-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  animation: fadeInUp 0.4s ease-out;
}

/* Fade-in up 애니메이션 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 모달 콘텐츠 */
.modal-content {
  background: #ffffff;
  border: 3px solid var(--color-primary);
  border-radius: 12px;
  padding: 40px 30px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
  text-align: center;
}

/* 닫기 버튼 (X) */
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.2s ease;
  z-index: 1;
  padding: 0;
}

.modal-close:hover {
  background: var(--color-bg);
  transform: rotate(90deg);
}

.close-icon {
  font-size: 1.5rem;
  color: #666;
  font-weight: 300;
  line-height: 1;
}

/* 모달 아이콘 */
.modal-icon {
  margin-bottom: 20px;
}

.success-icon {
  font-size: 4rem;
  display: inline-block;
  animation: scaleIn 0.5s ease-out 0.2s both;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 모달 타이틀 */
.modal-title {
  font-size: 1.75rem;            /* 28px */
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 16px;
  font-family: var(--font-family-base);
}

/* 모달 메시지 */
.modal-message {
  font-size: 1.0625rem;          /* 17px */
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 30px;
}

.modal-message strong {
  color: var(--color-accent);
  font-weight: 700;
}

/* 모달 버튼 영역 */
.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

/* Primary 버튼 (영상 보러 가기) */
.btn-modal-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 1.125rem;           /* 18px */
  font-weight: 700;
  color: #ffffff;
  background: var(--color-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(6, 40, 61, 0.3);
  font-family: var(--font-family-base);
  width: 100%;
}

.btn-modal-primary:hover {
  background: #0a3a56;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(6, 40, 61, 0.4);
}

.btn-modal-primary:active {
  transform: translateY(0);
}

.btn-modal-primary .btn-icon {
  font-size: 1.375rem;
}

.btn-modal-primary .btn-text {
  font-size: 1.125rem;
  font-weight: 700;
}

/* Secondary 버튼 (닫기) */
.btn-modal-secondary {
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  color: #666;
  background: transparent;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-family-base);
  width: 100%;
}

.btn-modal-secondary:hover {
  background: var(--color-bg);
  border-color: #999;
  color: var(--color-text);
}

/* ========================================
   Modal 반응형 (태블릿)
   ======================================== */
@media (max-width: 968px) {
  .modal-container {
    max-width: 480px;
  }

  .modal-content {
    padding: 36px 24px;
  }

  .modal-title {
    font-size: 1.5rem;           /* 24px */
  }

  .modal-message {
    font-size: 1rem;
  }
}

/* ========================================
   Modal 반응형 (모바일)
   ======================================== */
@media (max-width: 600px) {
  .modal-overlay {
    padding: 16px;
  }

  .modal-container {
    max-width: 100%;
  }

  .modal-content {
    padding: 32px 20px;
  }

  .modal-close {
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
  }

  .close-icon {
    font-size: 1.25rem;
  }

  .success-icon {
    font-size: 3rem;
  }

  .modal-title {
    font-size: 1.375rem;         /* 22px */
  }

  .modal-message {
    font-size: 0.9375rem;        /* 15px */
    margin-bottom: 24px;
  }

  .btn-modal-primary {
    padding: 14px 24px;
    font-size: 1rem;
  }

  .btn-modal-primary .btn-text {
    font-size: 1rem;
  }

  .btn-modal-secondary {
    padding: 12px 24px;
    font-size: 0.9375rem;
  }
}