:root {
  --bg: #ffffff;
  --text: #111111;
  --subtext: #666666;
  --border: #eeeeee;
  --primary: #2563eb;
  --card-shadow: 0 25px 60px rgba(17, 17, 17, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.6;
}

.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}


#header {
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  z-index: 1100;
}
.site-header {
  position: relative;
  height: 70px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 24px rgba(17, 17, 17, 0.08);
}

.site-header__inner {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
}

.site-nav a {
  text-decoration: none;
  color: #aeaeae;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-left: 24px;
}

.site-nav a:first-child {
  margin-left: 0;
}

.site-nav a:hover {
  color: var(--primary);
}

.site-nav a[aria-current="page"] {
  color: #000000;
}

.site-nav a[aria-current="page"]:hover {
  color: #000000;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-block {
  padding: 40px 0;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.section-block.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-section {
  display: flex;
  align-items: flex-start;
  min-height: 360px;
}

.hero__inner {
  max-width: 640px;
}

.section-with-media {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 460px);
  gap: 48px;
  align-items: center;
}

.section-with-media__content {
  min-width: 0;
}

.section-with-media__media {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #f5f5f5;
}

.section-with-media__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


.hero__name {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 12px;
}

.hero__subtitle {
  font-size: 20px;
  font-weight: 600;
  color: var(--subtext);
  margin-bottom: 24px;
}

.hero__description {
  font-size: 18px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 36px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(38, 99, 235, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(38, 99, 235, 0.35);
}

.section-heading {
  max-width: 640px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--subtext);
  line-height: 1.6;
}

.about-page__text {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 12px;
}

.about-section__image-wrap {
  width: 100%;
}

.about-section__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.skill-list {
  margin-top: 16px;
  padding-left: 20px;
  color: var(--text);
  line-height: 1.7;
}

.featured-section .project-grid,
.section-block .project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.project-card {
  border: 1px solid var(--border);
  border-radius: 20px;
  text-decoration: none;
  color: inherit;
  background: #ffffff;
  box-shadow: 0 0 0 rgba(17, 17, 17, 0);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow);
}

.project-card__image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card__body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-card__id {
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--subtext);
}

.project-card__title {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
}

.project-card__description {
  font-size: 16px;
  color: var(--subtext);
  margin: 0;
}

.project-card__tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.project-card__tags span {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  border-radius: 999px;
  background: #f8f9ff;
  color: var(--primary);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.projects-cta {
  margin-top: 32px;
}

.link-button {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-list li {
  font-size: 16px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.contact-list span {
  color: var(--subtext);
  font-weight: 600;
}

.contact-list a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: auto;
  background: #fafafa;
}

.site-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.site-footer__copyright {
  margin: 0;
  font-weight: 600;
  color: var(--text);
}

.footer-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 460px;
}

.footer-contact-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 12px;
  align-items: baseline;
  color: var(--subtext);
}

.footer-contact-list span {
  color: var(--text);
  font-weight: 600;
  text-align: left;
}

.footer-contact-list a {
  color: var(--text);
  text-decoration: none;
  justify-self: end;
  text-align: right;
  overflow-wrap: anywhere;
}

.project-detail-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.project-detail-hero__text {
  max-width: 560px;
}

.project-detail-id {
  font-size: 14px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--subtext);
  margin-bottom: 12px;
}

.project-detail-title {
  font-size: 36px;
  margin: 0 0 14px;
}

.project-detail-description {
  color: var(--subtext);
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.project-detail-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.project-detail-tags span {
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-detail-hero__media {
  flex: 1;
  min-width: 280px;
}

.project-detail-hero__media img {
  width: 100%;
  border-radius: 20px;
  object-fit: cover;
}

.project-detail-body__inner {
  max-width: 900px;
  margin: 0 auto;
  font-size: 17px;
  color: var(--subtext);
  line-height: 1.8;
}

.project-detail-body__inner h2 {
  font-size: 26px;
  color: var(--text);
  margin-top: 32px;
}

.project-detail-body__inner ul {
  padding-left: 20px;
  color: var(--subtext);
}

@media (max-width: 1100px) {
  .featured-section .project-grid,
  .section-block .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .featured-section .project-grid,
  .section-block .project-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .site-header {
    height: auto;
    min-height: 88px;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
    gap: 12px;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    margin-left: 0;
    flex: 0 0 auto;
  }

  .site-main {
    padding: 0 16px;
  }

  .project-card__description {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
  }

  .hero-section {
    min-height: auto;
  }
  .section-with-media {
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: start;
  }
  
  .section-with-media__media {
    max-width: 100%;
  }
  
  .hero__name {
    font-size: 40px;
    line-height: 1.15;
  }

  .hero__subtitle {
    font-size: 18px;
  }

  .hero__description {
    font-size: 17px;
    margin-bottom: 28px;
  }

  .section-title {
    font-size: 30px;
    line-height: 1.25;
  }

  .section-block {
    padding: 20px 0;
  }

  .project-detail-hero {
    flex-direction: column;
  }

  .contact-list li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .contact-list a {
    overflow-wrap: anywhere;
  }

  .site-footer {
    padding: 32px 16px;
  }

  .site-footer__inner {
    flex-direction: column;
    gap: 16px;
  }

  .footer-contact-list {
    min-width: 0;
    width: 100%;
    text-align: left;
  }

  .footer-contact-list li {
    display: block;
  }

  .footer-contact-list a {
    justify-self: start;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .section-block,
  .project-card,
  .cta-button {
    transition: none;
  }
}

.markdown-content {
  max-width: 900px;
  margin: 0 auto;
  font-size: 17px;
  color: var(--subtext);
  line-height: 1.8;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
  color: var(--text);
  line-height: 1.3;
  margin-top: 28px;
  margin-bottom: 14px;
}

.markdown-content h1 {
  font-size: 36px;
  margin-top: 0;
}

.markdown-content h2 {
  font-size: 26px;
}

.markdown-content p {
  margin: 0 0 14px;
}

.markdown-content ul,
.markdown-content ol {
  padding-left: 20px;
  margin-bottom: 16px;
}

.markdown-content img {
  width: 100%;
  max-width: 720px;
  border-radius: 20px;
  border: 1px solid var(--border);
  margin: 14px 0 22px;
}