/* Responsive navigation + homepage layout refinement. */
.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .35rem;
}

.nav-toggle {
  display: none;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid transparent;
  color: var(--faint);
  background: transparent;
  cursor: pointer;
  touch-action: manipulation;
}

.nav-toggle:hover,
.nav-toggle[aria-expanded="true"] {
  color: var(--strong);
  border-color: var(--border);
  background: var(--raised);
}

.nav-toggle-icon {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  transition: transform .25s var(--ease-out);
}

.nav-toggle .nav-line {
  transform-origin: 12px 12px;
  transition: transform .25s var(--ease-out), opacity .18s ease;
}

.nav-toggle[aria-expanded="true"] .nav-line-top {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-line-middle {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-line-bottom {
  transform: translateY(-5px) rotate(-45deg);
}

.mobile-nav-panel {
  display: none;
}

/* Keep the intro strong without letting it sprawl on wider screens. */
.intro-copy {
  max-width: 43rem;
}

.intro-tools {
  max-width: 48rem;
}

.page-section h3 {
  color: var(--strong);
  margin: 0 0 .9rem;
  font-size: .82rem;
  line-height: 1.4;
  letter-spacing: .05em;
  text-transform: uppercase;
}

/* Slightly cleaner row rhythm and larger usable tap/focus area. */
.entry,
.entry-link {
  padding-block: 1.15rem;
}

.entries > li:focus-within {
  box-shadow: inset 2px 0 0 var(--accent);
}

@supports ((backdrop-filter: blur(14px)) or (-webkit-backdrop-filter: blur(14px))) {
  .site-header {
    background: color-mix(in srgb, var(--bg) 91%, transparent);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 4rem;
  }

  .site-header {
    min-height: var(--header-height);
  }

  .header-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-rows: 1fr;
    min-height: var(--header-height);
    gap: .75rem;
  }

  .brand {
    min-width: 0;
  }

  .js .site-nav {
    display: none;
  }

  .js .nav-toggle {
    display: grid;
  }

  .header-actions {
    grid-column: 2;
    grid-row: 1;
  }

  .theme-picker {
    grid-column: auto;
    grid-row: auto;
  }

  .mobile-nav-panel {
    position: absolute;
    z-index: 55;
    top: 100%;
    right: 0;
    left: 0;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    box-shadow: 0 1.25rem 2.5rem rgb(0 0 0 / .18);
  }

  .site-header.nav-expanded .mobile-nav-panel {
    display: block;
    animation: menu-in .18s var(--ease-out) both;
  }

  .mobile-nav-inner {
    padding-top: .7rem;
    padding-bottom: 1rem;
  }

  .mobile-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .35rem;
  }

  .mobile-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    min-width: 0;
    min-height: 3rem;
    padding: .65rem .8rem;
    border: 1px solid var(--border);
    color: var(--muted);
    background: var(--raised);
    font-size: .9rem;
    font-weight: 650;
    transition: color .2s ease, border-color .2s ease, background-color .2s ease;
  }

  .mobile-nav a::after {
    content: "→";
    flex: none;
    color: var(--faint);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    transition: transform .2s var(--ease-out), color .2s ease;
  }

  .mobile-nav a:hover,
  .mobile-nav a:focus-visible {
    color: var(--strong);
    border-color: var(--faint);
    background: var(--hover);
  }

  .mobile-nav a:hover::after,
  .mobile-nav a:focus-visible::after {
    color: var(--accent);
    transform: translateX(.15rem);
  }

  .mobile-nav .email-nav {
    color: var(--accent);
  }

  /* No-JS fallback: keep navigation available rather than hiding it. */
  html:not(.js) .header-inner {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    padding-block: .45rem;
  }

  html:not(.js) .site-nav {
    grid-column: 1;
    grid-row: 2;
    justify-self: stretch;
    display: flex;
    flex-wrap: wrap;
    gap: .15rem .9rem;
    margin: 0;
    padding: 0;
    overflow: visible;
  }

  html:not(.js) .header-actions {
    position: absolute;
    top: .6rem;
    right: var(--gutter);
  }

  .intro {
    padding-top: clamp(2.75rem, 8vw, 4rem);
    padding-bottom: clamp(2.75rem, 8vw, 3.75rem);
  }

  .page-section,
  .contact-section {
    padding-block: clamp(3rem, 8vw, 4.25rem);
  }

  .contact-section {
    gap: 1.5rem;
  }

  .theme-menu {
    max-height: calc(100dvh - var(--header-height) - 1rem);
  }
}

@media (max-width: 48rem) {
  .entry,
  .entry-link {
    grid-template-columns: 1fr;
    gap: .3rem;
    padding-block: 1.05rem;
  }

  .entry-description {
    max-width: 42rem;
  }

  .footer-inner {
    align-items: flex-start;
    flex-wrap: wrap;
  }

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

@media (max-width: 35rem) {
  .mobile-nav {
    grid-template-columns: 1fr;
  }

  .mobile-nav a {
    min-height: 2.9rem;
  }

  h1 {
    letter-spacing: -.06em;
  }

  .intro-copy {
    font-size: 1.04rem;
  }

  .tool-line {
    grid-template-columns: 1fr;
    gap: .15rem;
  }

  .tool-line > span::after {
    content: ":";
  }

  .page-section h2,
  .contact-section h2 {
    margin-bottom: 1.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle-icon,
  .nav-toggle .nav-line,
  .mobile-nav a,
  .mobile-nav a::after {
    transition: none;
  }
}

.mobile-nav-panel{max-height:calc(100dvh - var(--header-height));overflow:auto;overscroll-behavior:contain}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px}