/* Sidebar, section shell and content grid. */

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  width: var(--sidebar-w);
  padding: var(--space-6) var(--space-5);
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  transition: transform var(--transition);
}

.sidebar__identity {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.sidebar__avatar {
  width: 96px;
  height: 96px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 3px solid var(--accent);
}

.sidebar__name {
  font-size: var(--text-lg);
  color: var(--text);
}

.sidebar__role {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  transition:
    background var(--transition),
    color var(--transition);
}

.sidebar__link:hover {
  background: var(--surface-2);
  color: var(--text);
}

.sidebar__link[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent);
}

.sidebar__footer {
  margin-top: auto;
  display: flex;
  justify-content: center;
  gap: var(--space-2);
}

.sidebar__social {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 1rem;
  transition:
    color var(--transition),
    border-color var(--transition);
}

.sidebar__social:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.nav-toggle {
  position: fixed;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 40;
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: rgb(8 10 18 / 0.5);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition),
    visibility var(--transition);
}

.backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}

.main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

/* Without JS every section stays readable and crawlable. */
.section {
  padding: var(--space-8) var(--space-5);
}

.js .section {
  display: none;
}

.js .section.is-active {
  display: block;
  animation: section-in 420ms ease both;
}

@keyframes section-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}

.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
}

.section__header {
  margin-bottom: var(--space-7);
}

.section__title {
  font-size: var(--text-3xl);
  letter-spacing: -0.02em;
}

.section__title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  margin-top: var(--space-3);
  border-radius: var(--radius-full);
  background: var(--accent);
}

.section__lead {
  margin-top: var(--space-4);
  max-width: 62ch;
  color: var(--text-muted);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid--cards {
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
}

.grid--skills {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 330px), 1fr));
}

.grid--halves {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr));
}

@media (max-width: 1199px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .nav-toggle {
    display: grid;
  }

  .main {
    margin-left: 0;
  }

  .section {
    padding-top: calc(var(--space-8) + var(--space-4));
  }
}

@media (max-width: 640px) {
  .section {
    padding-inline: var(--space-4);
  }
}