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

body {
  font-family: "Noto Sans JP", sans-serif;
  background: #fffaf7;
  color: #333;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  z-index: -1;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem 2rem;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.nav-link {
  color: #555;
  text-decoration: none;
  font-weight: 400;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link.active {
  color: #d4a574;
  font-weight: 500;
}

.nav-link:hover {
  color: #d4a574;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #d4a574, #c49660);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-separator {
  color: #ccc;
  margin: 0 0.5rem;
  font-weight: 300;
}


.main-content {
  padding-top: 80px;
  min-height: 100vh;
}

.about-section {
  position: relative;
  padding: 4rem 2rem 6rem;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid #333;
}

.decorative-stars {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.star {
  position: absolute;
  font-size: 1.8rem;
  color: #333;
  opacity: 0.4;
  filter: blur(0.5px);
}

.star-1 {
  top: 15%;
  left: 8%;
  font-size: 1.5rem;
}

.star-2 {
  top: 25%;
  right: 12%;
  font-size: 2rem;
}

.star-3 {
  bottom: 35%;
  left: 12%;
  font-size: 1.2rem;
}

.star-4 {
  bottom: 20%;
  right: 15%;
  font-size: 1.8rem;
}

.about-title {
  font-family: "Playfair Display", serif;
  font-size: 3.5rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 3rem;
  letter-spacing: 0.15em;
  position: relative;
  z-index: 2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-title span {
  display: inline-block;
  transition: transform 0.3s ease;
}

.about-title span:nth-child(1) {
  transform: rotate(-50deg) translateY(76px) translateX(-55px);
}
.about-title span:nth-child(2) {
  transform: rotate(-35deg) translateY(63px) translateX(-24px);
}
.about-title span:nth-child(3) {
  transform: rotate(-20deg) translateY(52px) translateX(-5px);
}
.about-title span:nth-child(4) {
  transform: rotate(-5deg) translateY(43px) translateX(5px);
}
.about-title span:nth-child(5) {
  transform: rotate(5deg) translateY(43px) translateX(10px);
}
.about-title span.space {
  width: 0.5em;
  transform: translateY(60px) translateX(15px);
}
.about-title span:nth-child(7) {
  transform: rotate(30deg) translateY(60px) translateX(20px);
}
.about-title span:nth-child(8) {
  transform: rotate(40deg) translateY(85px) translateX(40px);
}

.profile-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  max-width: 500px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  z-index: 2;
}

.profile-image-wrapper {
  position: relative;
  width: 300px;
  height: 380px;
  background-image: url("image/design/Ellipse.png");
  background-size: 90%;
  background-repeat: no-repeat;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.profile-image {
  width: 85%;
  height: 85%;
  object-fit: cover;
  object-position: center;
  border-radius: 50%;
  position: relative;
  z-index: 2;
}

.profile-top-background {
  position: absolute;
  top: 0;
  right: 0;
  width: 110%;
  height: 100%;

  transform: rotate(-180deg);
  background-image: url(./image/design/blur.png);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center top;
  z-index: 1;
}

.profile-bottom-background {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 380px;
  background-color: rgb(255, 255, 255, 0.8);
  z-index: 0;
}

.profile-info {
  text-align: center;
  position: relative;

  z-index: 2;
}

.profile-name-jp {
  font-size: 1.8rem;
  font-weight: 500;
  color: #333;
  margin-bottom: 0.8rem;
  letter-spacing: 0.1em;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.profile-name-en {
  font-family: "Playfair Display", serif;
  font-size: 1.4rem;
  font-weight: 400;
  color: #666;
  font-style: italic;
  letter-spacing: 0.05em;
}


.details-section {
  position: relative;
  padding: 4rem 2rem;
  background: #fffaf7;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

.decorative-star-right {
  position: absolute;
  top: 2.5rem;
  right: 3rem;
}

.decorative-star-right .star {
  position: relative;
  font-size: 2.5rem;
  color: #333;
  opacity: 0.3;
}

.details-grid {
  max-width: 550px;
  margin: 0 auto;
  display: grid;
  gap: 2.5rem;
}

.detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(51, 51, 51, 0.08);
  transition: all 0.3s ease;
}

.detail-item:hover {
  transform: translateX(5px);
  background: rgba(255, 255, 255, 0.3);
  margin: 0 -1rem;
  padding: 1.5rem 1rem;
  border-radius: 10px;
}

.detail-label {
  font-weight: 600;
  color: #333;
  min-width: 100px;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
}

.detail-value {
  color: #555;
  text-align: right;
  font-weight: 400;
  font-size: 1rem;
  letter-spacing: 0.3px;
}

.skills-section {
  background: #fffaf7;
  padding: 5rem 2rem;
  text-align: center;
  position: relative;
}

.skills-title {
  font-family: "Playfair Display", serif;
  font-size: 3rem;
  font-weight: 400;
  color: #666;
  margin-bottom: 4rem;
  letter-spacing: 0.1em;
  position: relative;
  z-index: 2;
}

.logo-glow {
  position: absolute;
  left: 50%;
  top: 15%;
  width: 300px;
  height: 180px;
  background: radial-gradient(circle, #f8b6b6 0%, #fff7f3 80%);
  filter: blur(32px);
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0.7;
}

.skills-container {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 4rem;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  padding: 3rem 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 1px 8px rgba(0, 0, 0, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08), 0 1px 6px rgba(0, 0, 0, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.5);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.skill-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.6),
    transparent
  );
  transition: left 0.5s ease;
}

.skill-item:hover::before {
  left: 100%;
}

.skill-item:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15), 0 5px 15px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 1);
}

.skill-icon {
  width: 45px;
  height: 45px;
  object-fit: contain;
  filter: brightness(1.1) contrast(1.1);
  transition: all 0.3s ease;
}



@media (max-width: 768px) {
  .navbar {
    padding: 0.8rem 1rem;
  }

  .nav-links {
    gap: 0.3rem;
  }

  .nav-link {
    font-size: 0.8rem;
    letter-spacing: 0.3px;
  }

  .nav-separator {
    margin: 0 0.3rem;
    font-size: 0.8rem;
  }

  .about-title {
    font-size: 3rem;
  }
  .about-title span:nth-child(1) {
    transform: rotate(-45deg) translateY(68px) translateX(-50px);
  }
  .about-title span:nth-child(2) {
    transform: rotate(-35deg) translateY(60px) translateX(-28px);
  }
  .about-title span:nth-child(3) {
    transform: rotate(-18deg) translateY(52px) translateX(-8px);
  }
  .about-title span:nth-child(4) {
    transform: rotate(-4deg) translateY(45px) translateX(5px);
  }
  .about-title span:nth-child(5) {
    transform: rotate(2deg) translateY(45px) translateX(10px);
  }
  .about-title span.space {
    width: 0.5em;
    transform: translateY(60px) translateX(15px);
  }
  .about-title span:nth-child(7) {
    transform: rotate(35deg) translateY(53px) translateX(29px);
  }
  .about-title span:nth-child(8) {
    transform: rotate(40deg) translateY(70px) translateX(40px);
  }

  .profile-image-wrapper {
    width: 260px;
    height: 320px;
  }
  .profile-top-background {
    height: 72%;
  }
  .details-grid {
    padding: 0 1rem;
  }

  .detail-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 1.2rem 0;
  }

  .detail-value {
    text-align: left;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    padding: 4rem 1.5rem;
    justify-items: center;     
    margin-left: auto;          
    margin-right: auto;         
  }
  .skill-item {
    width: 100px;
  }

  .skill-icon {
    width: 40px;
    height: 40px;
  }

  .decorative-star-right {
    right: 1.5rem;
    top: 1.5rem;
  }
}

@media (max-width: 480px) {
  .about-section,
  .details-section,
  .skills-section {
    padding: 3rem 1rem;
  }

  .about-title {
    font-size: 2.2rem;
    letter-spacing: 0.1em;
  }

  .profile-image-wrapper {
    width: 220px;
    height: 280px;
  }

  .profile-name-jp {
    font-size: 1.5rem;
  }

  .profile-name-en {
    font-size: 1.1rem;
  }

  .skills-title {
    font-size: 2.2rem;
  }

  .skills-grid {
    padding: 1.5rem 1rem;
    gap: 1rem;
  }

  .skill-item {
    padding: 1rem;
  }

  .skill-icon {
    width: 35px;
    height: 35px;
  }
}

html {
  scroll-behavior: smooth;
}

.profile-container {
  opacity: 1;
  transform: translateY(0);
}

.details-grid {
  opacity: 1;
  transform: translateY(0);
}

.skills-container {
  opacity: 1;
  transform: translateY(0);
}

.detail-item {
  opacity: 1;
  transform: translateX(0);
}

.skill-item {
  opacity: 1;
  transform: scale(1);
}

.about-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.skills-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    circle at 30% 70%,
    rgba(255, 255, 255, 0.15) 0%,
    transparent 60%
  );
  pointer-events: none;
}