/* 
  지음에듀 기후위기 교육 포털 스타일시트 
  테마: 픽사/디즈니 애니메이션 (밝고, 통통 튀고, 따뜻한 느낌)
*/

:root {
  /* Toy Story / Pixar Inspired Palette */
  --bg-gradient-start: #E0F7FA; /* 연한 하늘색 */
  --bg-gradient-end: #FFF3E0;   /* 따뜻한 크림색 */
  
  --primary-color: #0288D1;     /* 쾌활한 파랑 */
  --secondary-color: #F57C00;   /* 장난감 오렌지 */
  --accent-green: #7CB342;      /* 싱그러운 연두 */
  
  --text-primary: #37474F;      /* 부드러운 진회색 */
  --text-secondary: #78909C;
  
  --card-bg: #FFFFFF;
  --card-radius: 24px;
  
  --shadow-soft: 0 12px 30px -10px rgba(50, 50, 93, 0.15), 0 8px 15px -8px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 40px -10px rgba(50, 50, 93, 0.25), 0 12px 20px -8px rgba(0, 0, 0, 0.15);
  --shadow-title: 4px 4px 0px #FFFFFF, 7px 7px 0px rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Gaegu', cursive; /* 손글씨 느낌 유지 */
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 1.25rem;
  min-height: 100vh;
}

/* Header Section */
header {
  background-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  padding: 4rem 1rem;
  text-align: center;
  border-bottom: 2px dashed rgba(255, 255, 255, 0.8);
  margin-bottom: 2rem;
}

.brand-name {
  font-family: 'Jua', sans-serif;
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  display: inline-block;
  background: #FFFFFF;
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
  border: 3px solid #B3E5FC;
  transform: rotate(-2deg); /* 살짝 기울여서 장난기 있게 */
}

h1 {
  font-family: 'Jua', sans-serif;
  font-size: 4rem;
  color: var(--primary-color);
  margin-bottom: 0.8rem;
  text-shadow: var(--shadow-title); /* 픽사 타이틀 같은 입체감 */
  line-height: 1.2;
  word-break: keep-all;
  padding: 0 1rem;
  letter-spacing: -0.03em;
  -webkit-text-stroke: 2px #fff; /* 흰색 테두리로 만화 느낌 강조 */
}

.subtitle {
  font-family: 'Jua', sans-serif;
  font-size: 1.6rem;
  color: var(--text-secondary);
  word-break: keep-all;
  line-height: 1.4;
  padding: 0 1rem;
  text-shadow: 1px 1px 0px #fff;
}

/* Main Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem 1.5rem;
}

/* Grid Layout */
.card-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .card-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Card Link Wrapper - removes default link styles */
.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

/* Card Component - Pixar Style */
.card {
  background: var(--card-bg);
  border-radius: var(--card-radius);
  overflow: visible; /* 그림자 잘림 방지 */
  box-shadow: var(--shadow-soft);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); /* 통통 튀는 효과 */
  display: flex;
  flex-direction: column;
  border: 4px solid #fff; /* 스티커 같은 흰 테두리 */
  cursor: pointer;
  position: relative;
  height: 100%; /* 링크 안에서 높이 채우기 */
}

.card-link:hover .card {
  transform: translateY(-12px) scale(1.03);
  box-shadow: var(--shadow-hover);
  z-index: 10;
}

.card-image-wrapper {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background-color: #FFF9C4; /* 이미지 로딩 전 노란 배경 */
  border-radius: 20px 20px 0 0; /* 카드 내부 이미지도 둥글게 */
  border-bottom: 4px solid #f0f0f0;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 이미지가 찌그러지지 않고 꽉 차게 */
  object-position: center;
  transition: transform 0.6s ease;
}

.card-link:hover .card-image {
  transform: scale(1.1) rotate(1deg);
}

.card-content {
  padding: 1.8rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: 0 0 20px 20px;
}

.card-title {
  font-family: 'Jua', sans-serif;
  font-size: 1.6rem;
  font-weight: normal;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.card-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.5;
}

.card-btn {
  font-family: 'Jua', sans-serif;
  font-size: 1.3rem;
  display: block;
  width: 100%;
  padding: 0.8rem;
  background-color: var(--accent-green);
  color: white;
  text-align: center;
  text-decoration: none;
  border-radius: 16px; /* 버튼도 더 둥글게 */
  border: none;
  box-shadow: 0 6px 0 #558B2F; /* 입체적인 버튼 그림자 */
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  top: 0;
}

.card-link:hover .card-btn {
  background-color: #8BC34A;
  top: -4px;
  box-shadow: 0 10px 0 #558B2F;
}

.card-link:active .card-btn {
  top: 2px;
  box-shadow: 0 2px 0 #558B2F;
}

/* Footer */
footer {
  text-align: center;
  padding: 3rem;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-top: 2rem;
  background: rgba(255,255,255,0.4);
}

/* Mobile Responsive Text Adjustments */
@media (max-width: 768px) {
  h1 {
    font-size: 2.8rem;
    -webkit-text-stroke: 1.5px #fff;
  }
  
  .subtitle {
    font-size: 1.3rem;
  }
  
  .card-content {
    padding: 1.5rem;
  }
}