.site-logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-primary);
}

/* Navigation */
.site-nav a {
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--color-text);
  border-radius: 999px;
}

/* Hero */
.hero-content h1 {
  max-width: 800px;
  margin-bottom: 1.25rem;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 1.08;
}

.hero-description {
  max-width: 800px;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.hero-links {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.hero-icon-link {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

.hero-icon-link:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero-icon {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
}

.hero-icon svg {
  display: block;
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
}

/* About Avatar */
.about-image-wrapper {
  width: 260px;
  height: 260px;
  justify-self: center;
  align-self: start;
  margin-top: 1rem;
  overflow: hidden;
  border-radius: 50%;
  background: var(--color-surface-muted);
  box-shadow: var(--shadow-card);
}

.about-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#about-content .section-description {
  text-align: justify;
  text-justify: inter-character;
  text-align-last: left;
}

.about-actions {
  display: flex;
  margin-top: 1.5rem;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-pill);
  font-weight: 800;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-primary);
  border-radius: 6px;
  background: transparent;
  color: var(--color-primary);
  font-weight: 800;
  letter-spacing: 0.03em;
}

.button-primary:hover {
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}

.button-secondary {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
}

/* Section */
.hero-label,
.section-label {
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 2.6rem);
}

.section-description {
  max-width: 800px;
  font-size: 1.2rem;
  line-height: 1.7;
}

/* Cards */
.card {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--color-surface-muted);
}

.card-body {
  padding: 1.5rem;
}

.card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.card p {
  margin-bottom: 1rem;
}

/* Tags */
.tag-list {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--color-primary-dark);
  border-radius: 6px;
  background: transparent;
  color: var(--color-primary);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.5;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}

.tag:hover {
  transform: translateY(-2px);
  background: var(--color-primary-dark);
  color: #ffffff;
}

/* Section Links */
.section-link-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.section-more-link {
  position: relative;
  display: inline-flex;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 800;
}

.section-more-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.section-more-link:hover::after {
  transform: scaleX(1);
}

/* Projects */
.project-feature {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 2.5rem;
  padding: 2rem;
  border: 1px solid color-mix(in srgb, var(--color-border) 80%, transparent);
  border-radius: var(--radius-card);
  background:
    radial-gradient(
      circle at top left,
      color-mix(in srgb, var(--color-primary) 10%, transparent),
      transparent 34%
    ),
    color-mix(in srgb, var(--color-surface) 94%, transparent);
  box-shadow: var(--shadow-card);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.project-feature:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--color-primary) 45%, var(--color-border));
}

.project-feature-image-wrap {
  overflow: hidden;
  min-height: 280px;
  border-radius: 1rem;
  background: var(--color-surface-muted);
}

.project-feature-image {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.project-feature:hover .project-feature-image {
  opacity: 1;
}

.project-feature-content {
  padding: 0.25rem 0;
}

.project-feature h3 {
  margin-bottom: 0.75rem;
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  line-height: 1.25;
}

.project-feature-content > p {
  margin-bottom: 1.4rem;
}

.project-tech-list {
  display: grid;
  gap: 0.9rem;
}

.project-tech-group {
  display: grid;
  gap: 0.35rem;
}

.project-tech-title {
  margin: 0;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.4;
}

.project-tag-list {
  justify-content: flex-start;
}

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.25rem;
}

.project-links a {
  color: var(--color-muted);
  font-weight: 900;
}

.project-links a:hover {
  color: var(--color-primary);
}

/* Experience */
.experience-tabs {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 2rem;
}

.experience-tab-list {
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--color-border);
}

.experience-tab {
  width: 100%;
  padding: 0.9rem 1.2rem;
  border: 0;
  border-left: 3px solid transparent;
  background: transparent;
  color: var(--color-muted);
  font-weight: 800;
  text-align: left;
  cursor: pointer;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease;
}

.experience-tab:hover {
  background: color-mix(in srgb, var(--color-primary) 8%, transparent);
  color: var(--color-primary);
}

.experience-tab.is-active {
  border-left-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
}

.experience-panel {
  display: none;
}

.experience-panel.is-active {
  display: block;
}

.experience-panel h3 {
  margin-bottom: 0.35rem;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
}

.experience-panel h3 span {
  color: var(--color-primary);
}

.experience-period {
  margin-bottom: 1.5rem;
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.experience-list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.experience-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.experience-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* Page Title */
.page-hero-section {
  min-height: 100vh;
}

.page-title {
  margin-bottom: 0.25rem;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1;
}

.page-description {
  margin-bottom: 4rem;
  color: var(--color-primary);
  font-weight: 800;
}

/* Course Table */
.course-table {
  display: grid;
  gap: 0.25rem;
}

.course-table-header,
.course-row {
  display: grid;
  grid-template-columns: 90px 1.4fr 1.6fr 120px;
  gap: 1.5rem;
  align-items: center;
}

.course-table-header {
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-size: 1.1rem;
  font-weight: 900;
}

.course-row {
  padding: 0.9rem 0;
}

.course-year {
  color: var(--color-primary);
  font-weight: 800;
}

.course-name {
  color: var(--color-text);
  font-size: 1.15rem;
  font-weight: 900;
}

.course-tools {
  color: var(--color-muted);
  font-family: monospace;
}

.course-links {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.course-links a {
  color: var(--color-muted);
  font-weight: 900;
}

.course-links a:hover {
  color: var(--color-primary);
}

/* Timeline */
.timeline-item {
  padding: 1.25rem;
  border-left: 5px solid var(--color-primary);
  border-radius: 0.9rem;
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.timeline-item h3 {
  margin-bottom: 0.5rem;
}

.timeline-item p {
  margin-bottom: 0;
}

/* Footer */
.back-to-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #93c5fd;
  font-weight: 800;
  transition:
    color 0.2s ease,
    transform 0.2s ease;
}

.back-to-top:hover {
  transform: translateY(-2px);
  color: #bfdbfe;
}

/* Mobile */
@media (max-width: 768px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav a {
    width: 100%;
    padding: 0.75rem 0;
  }

  .hero-content h1 {
    font-size: clamp(2.5rem, 14vw, 4rem);
  }

  .hero-description {
    margin-inline: auto;
  }

  .hero-actions,
  .hero-links {
    justify-content: center;
  }

  .section-description {
    font-size: 1.08rem;
    line-height: 1.8;
  }

  #about-content .section-description {
    text-align: left;
  }

  .about-actions {
    justify-content: center;
  }

  .about-image-wrapper {
    width: 220px;
    height: 220px;
    margin-top: 0;
    margin-inline: auto;
  }

  .tag-list {
    justify-content: center;
  }

  .project-feature {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.25rem;
    text-align: left;
  }

  .project-feature-image-wrap,
  .project-feature-image {
    min-height: 220px;
  }

  .project-tag-list {
    justify-content: flex-start;
  }

  .project-links {
    justify-content: flex-start;
  }

  .experience-tabs {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .experience-tab-list {
    flex-direction: row;
    overflow-x: auto;
    border-left: 0;
    border-bottom: 2px solid var(--color-border);
  }

  .experience-tab {
    flex: 0 0 auto;
    width: auto;
    min-width: 160px;
    border-left: 0;
    border-bottom: 3px solid transparent;
    text-align: center;
    white-space: nowrap;
  }

  .experience-tab.is-active {
    border-left-color: transparent;
    border-bottom-color: var(--color-primary);
  }

  .experience-panel h3 {
    font-size: 1.35rem;
  }

  .experience-list li {
    font-size: 1rem;
  }

  .page-title,
  .page-description,
  .section-label {
    text-align: center;
  }

  .course-table-header {
    display: none;
  }

  .course-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
  }

  .course-links {
    justify-content: center;
  }
}

/* Home Link */
.home-link {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-surface) 88%, transparent);
  box-shadow: var(--shadow-card);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease;
}

.home-link:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.home-icon {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
}

.home-icon svg {
  display: block;
  width: 20px;
  height: 20px;
}