/* --- 전체 --- */
body,
html {
  margin: 0;
  font-family: 'Arial', sans-serif;
  color: #0d1b3d;
  background: linear-gradient(to bottom, #f9f9f9, #dceffc);
}

a {
  color: #0d1b3d;
  text-decoration: none;
}

a:hover {
  opacity: 0.8;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

#main-wrap {
  min-width: 1300px;
}

/* --- Header --- */
header {
  position: fixed;
  width: 100%;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  height: 70px;
}

header ul {
  width: 1200px;
  display: flex;
  justify-content: center;
  gap: 25px;
  list-style: none;
  margin: 0 auto;
  padding: 0;
  height: 70px;
  align-items: center;
}

header li {
  font-weight: bold;
}

/* --- Home / Main Banner --- */
#home {
  position: relative;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow: hidden;
  padding-top: 70px;
  background: #0a0a2a;
  color: #fff;
}

/* 별 캔버스 */
#star-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* 홈 텍스트 */
.home-banner {
  position: relative;
  width: 100%;
  height: 100vh;
}

.home-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.home-content h4,
.home-content h1 {
  margin: 0; /* 기본 마진 제거 */
}

.main-text {
  display: inline-block;
  background: linear-gradient(
    90deg,
    #a29bfe,
    #74b9ff,
    #55efc4,
    #a29bfe
  );
  background-size: 200% auto; /* 색이 흐를 공간 */
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: gradientFlow 4s linear infinite, fadeInText 2s ease forwards;
  font-size: 3.5rem;
  text-shadow: 
    0 0 4px rgba(0, 0, 0, 0.3), 
    0 0 10px rgba(255, 255, 255, 0.4);
  white-space: nowrap; 
  overflow: hidden;  
  text-overflow: ellipsis; 
}

.highlight-name {
  display: inline-block;
  background: linear-gradient(
    90deg,
    #74b9ff,
    #55efc4,
    #ffeaa7,
    #74b9ff
  );
  background-size: 200% auto;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: gradientFlow 4s linear infinite, fadeInText 2s ease forwards;
  font-size: 4.5rem;
  text-shadow: 
    0 0 6px rgba(0, 0, 0, 0.2), 
    0 0 12px rgba(255, 255, 255, 0.5);
}

/* 색상만 흐르는 애니메이션 */
@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* 등장 애니메이션 */
@keyframes fadeInText {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}


.main-text:nth-child(1) {
  animation-delay: 0.5s;
}

.main-text:nth-child(2) {
  animation-delay: 1s;
}

@keyframes textFade {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Float items */
.float-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.float-item {
  position: absolute;
  font-size: 18px;
  font-weight: bold;
  color: #fff;
  animation: floatAnim 3s infinite ease-in-out alternate;
}



/* 세로 위아래만 움직이게 */
@keyframes floatAnim {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  50% {
    transform: translateY(-25px) rotate(10deg);
    opacity: 0.8;
  }
  100% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
}

section {
  padding-top: 100px;
}

/* --- About --- */
#about .content {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  align-items: center;
}

#about .text {
  flex: 1 1 100%;
  line-height: 1.8;
  font-size: 17px;
}

/* --- Projects --- */
#projects .project {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items: flex-start;
}

#projects .project-img {
  max-width: 600px;
  width: 100%;
  border-radius: 5px;
}

#projects .project-links {
  display: flex;
  flex-direction: column;
  gap: 25px;
  margin-left: 20px;
  margin-top: 70px;
}

#projects .project-links a {
  padding: 10px 15px;
  background: #0d1b3d;
  color: #fff;
  border-radius: 5px;
  text-align: center;
  transition: 0.3s;
}

#projects .project-links a:hover {
  background: #1e3c72;
}

/* --- Card News --- */
#cardnews .card-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between; 
  gap: 50px;
  margin-top: 30px;
}

#cardnews .card {
  width: 530px;
  border: 1px solid #0d1b3d;
  border-radius: 8px;
  overflow: hidden;
  padding: 10px;
  display: flex;
}

#cardnews .card-content {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 15px;
  
}

#cardnews .card-buttons {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

#cardnews .card-buttons a {
  flex: 1;
  padding: 15px 0;
  background: #0d1b3d;
  color: #fff;
  border-radius: 5px;
  text-align: center;
  transition: 0.3s;
}

#cardnews .card-buttons a:hover {
  background: #1e3c72;
}

#cardnews .card-img {
  width: 200px;
  object-fit: cover;
}

#cardnews .card-img2 {
  padding: 30px;
  width: 150px;
  height: auto;
}

/* --- Skills --- */
.skills-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly; 
  gap: 100px;
  margin-top: 30px;
}

.skill {
  flex: 0 0 45%; /* 한 줄에 두 개씩 고정 */
}

.skill-bar {
  border: 1px solid #1e3c72;
  height: 20px;
  border-radius: 10px;
  width: 100%;
  overflow: hidden;
}

.skill-fill {
  height: 100%;
  width: 0;
  background: #1e3c72;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  color: #fff;
  font-size: 12px;
  padding-right: 5px;
  transition: width 2s ease;
}

/* --- Timeline --- */
/* --- Timeline 전체 --- */
.timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

/* 세로선 */
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 30px; /* 선 위치 고정 */
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, #1e3c72, #74b9ff);
  border-radius: 2px;
  z-index: 0;
}

/* 각 타임라인 항목 */
.timeline-item {
  position: relative; /* 원 위치 기준 */
  margin-bottom: 40px;
  padding-left: 70px; /* 내용 왼쪽 여백 */
}

/* 원 */
.timeline-item::before {
  content: '';
  position: absolute;
  top: 7px; /* 원의 세로 위치 조정 */
  left: 22.4px; /* 선과 동일 */
  width: 14px;
  height: 14px;
  background-color: #425BB5;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: 0 0 6px rgba(0,0,0,0.2);
  z-index: 1;
  transition: background-color 0.3s ease;
}

/* 호버 시 원 색상 변화 */
.timeline-item:hover::before {
  background-color: #74b9ff;
}

/* 항목 제목 */
.timeline-item h3 {
  font-size: 1.2em;
  color: #1e3c72;
  margin-bottom: 0.3em;
}

/* 항목 내용 */
.timeline-item p {
  font-size: 0.95em;
  color: #555;
  margin: 0.2em 0;
}


/* 호버 시 원 색상 변화 */
.timeline-item:hover::before {
  background-color: #74b9ff;
}

/* 내용 */

.date {
  padding-top: 10px;
  font-size: 15px;
  font-weight: bold;
}

.timeline-item h3 {
  font-size: 1.2em;
  color: #1e3c72;
  margin-bottom: 0.3em;
}

.timeline-item p {
  font-size: 0.95em;
  color: #555;
  margin: 0.2em 0;
}



/* --- Contact --- */
#contact {
  padding: 80px 0 100px;
}

#contact h2 {
  font-size: 2.2rem;
  color: #1e3c72;
  margin-bottom: 40px;
  border-left: 5px solid #1e3c72; /* 포인트 라인 */
  padding-left: 10px;
}

#contact .contact-item {
  margin-bottom: 25px;
  padding-left: 30px; /* 글자와 원 사이 여백 */
  position: relative;
}

#contact .contact-item::before {
  content: '';
  position: absolute;
  left: 0; /* 원 위치 */
  top: 12px;
  width: 10px;
  height: 10px;
  background: #1e3c72;
  border-radius: 50%;
}


#contact h3 {
  font-size: 1.1rem;
  color: #1e3c72;
  margin-bottom: 5px;
}

#contact p {
  font-size: 0.95rem;
  color: #0d1b3d;
  margin: 0;
}

#contact a {
  color: #0d1b3d;
  text-decoration: underline;
}

#contact a:hover {
  color: #74b9ff;
  text-decoration: underline;
}