/* ============================================================
         Design tokens
         ============================================================ */
:root {
  /* Surface + ink */
  --bg: #fafaf7;
  --bg-elev: #f4f3ee;
  --ink: #0a0a0a;
  --ink-dim: #52525b;
  --ink-mute: #71717a;
  --rule: #e7e5e0;
  --rule-strong: #d4d2cc;

  /* Brand accent */
  --accent: #dc2626;
  --accent-deep: #991b1b;
  --on-accent: #ffffff;

  /* Typography stacks */
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "IBM Plex Mono", Menlo, Consolas, monospace;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: ui-serif, "New York", "Iowan Old Style", "Charter", Georgia, Cambria, "Times New Roman", serif;

  /* Layout + motion */
  --gutter: clamp(1.25rem, 3vw, 2.5rem);
  --nav-h: 64px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ============================================================
         Reset + base
         ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-feature-settings: "ss01", "cv11"; /* Inter stylistic alternates */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

/* Links inherit color; underlines are styled per-context */
a {
  color: inherit;
  text-decoration: none;
}

/* Text selection uses the brand accent */
::selection {
  background: var(--accent);
  color: var(--on-accent);
}

/* ============================================================
         Focus indicators (keyboard-only; suppressed for mouse)
         ============================================================ */
:focus {
  outline: none;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}
.contact-cta:focus-visible {
  outline-offset: 6px;
}
.index-item a:focus-visible {
  outline-offset: -2px;
}

/* ============================================================
         Skip link (offscreen until keyboard-focused)
         ============================================================ */
.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 4px;
  z-index: 100;
  transform: translateY(-200%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
         Decorative background layers (all aria-hidden)
         ============================================================ */

/* Subtle fractal-noise grain overlaid with multiply */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.055;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='1'/></svg>");
}

/* Two soft color blobs drifting behind everything */
.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.aurora::before,
.aurora::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.5;
  animation: drift 22s var(--ease) infinite alternate;
}
.aurora::before {
  width: 55vmax;
  height: 55vmax;
  top: -15vmax;
  left: -10vmax;
  background: radial-gradient(closest-side, rgba(220, 38, 38, 0.22), transparent 70%);
}
.aurora::after {
  width: 50vmax;
  height: 50vmax;
  bottom: -20vmax;
  right: -15vmax;
  background: radial-gradient(closest-side, rgba(234, 88, 12, 0.16), transparent 70%);
  animation-duration: 28s;
  animation-direction: alternate-reverse;
}
@keyframes drift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(6vw, 4vh, 0) scale(1.15);
  }
}

/* ============================================================
         Top navigation (fixed, translucent)
         ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  /* Frosted-glass background over scrolling content */
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--rule);
}

/* Brand = monogram chip + wordmark */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
}
.brand-mark {
  width: 22px;
  height: 22px;
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
  display: grid;
  place-items: center;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.6875rem;
  letter-spacing: -0.02em;
  line-height: 1;
  transition:
    background 0.3s var(--ease),
    color 0.3s var(--ease);
}
/* Hover inverts the chip: filled → outlined */
.brand:hover .brand-mark {
  background: transparent;
  color: var(--ink);
}

/* Primary link list, right-aligned on desktop */
.nav-panel {
  margin-left: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-dim);
  position: relative;
  padding: 0.35rem 0;
  transition: color 0.25s var(--ease);
}
/* Underline slides in from the left on hover */
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s var(--ease);
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

/* ---------- CSS-only hamburger (checkbox hack; JS enhances a11y) ---------- */

/* Visually clipped but focusable; drives :checked state via the <label> */
.nav-toggle-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}
.nav-toggle {
  display: none; /* shown at mobile breakpoint */
  width: 2.75rem; /* 44px WCAG 2.2 touch target */
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--ink);
  border-radius: 4px;
  margin-left: auto;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* Three bars that morph into an X when the input is :checked */
.hamburger {
  display: block;
  width: 22px;
}
.hamburger > span {
  display: block;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  transform-origin: center;
  transition:
    transform 0.3s var(--ease),
    opacity 0.22s var(--ease);
}
.hamburger > span:nth-child(2) {
  margin: 5px 0;
}

/* Focus ring appears on the visible label when the clipped input is focused */
.nav-toggle-input:focus-visible ~ .nav-toggle {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ============================================================
         Layout primitives
         ============================================================ */
main {
  position: relative;
  z-index: 2; /* above aurora + grain */
  padding-top: var(--nav-h);
}
.section {
  padding: clamp(3rem, 8vh, 7rem) var(--gutter);
  max-width: 1440px;
  margin: 0 auto;
}

/* Section label row: number + title + trailing hairline rule */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: clamp(1.5rem, 3vh, 2.5rem);
}
.eyebrow .num {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.eyebrow .line {
  flex: 1;
  height: 1px;
  background: var(--rule);
  max-width: 180px;
}
/* h2 inside eyebrow keeps semantic heading but inherits visual style */
.eyebrow > h2 {
  margin: 0;
  padding: 0;
  font: inherit;
  color: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
}

/* ============================================================
         Hero
         ============================================================ */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 4rem);
  min-height: calc(100vh - var(--nav-h));
  padding-block: clamp(2.5rem, 8vh, 6rem);
  align-items: center;
}
/* Two-column asymmetric split above this width */
@media (min-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}
.hero-text > .eyebrow {
  margin-bottom: clamp(1.25rem, 3vh, 2rem);
}

/* Oversized display type; fluid scale from phone to ultrawide */
.display {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 0.95;
  margin: 0;
  font-size: clamp(3rem, 10vw + 0.5rem, 9.5rem);
}
.display .muted {
  color: var(--ink-mute);
  font-weight: 400;
}
.display .italic {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.015em;
}

/* Each line is an overflow-clip wrapper for the reveal animation.
         padding + negative margin holds descenders without visual gap. */
.display .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.18em;
  margin-bottom: -0.18em;
}
.display .line:last-child {
  margin-bottom: 0;
}
.display .line > span {
  display: inline-block;
  transform: translateY(110%);
  animation: reveal 0.9s var(--ease) forwards;
}
.display .line:nth-child(2) > span {
  animation-delay: 0.08s;
}
.display .line:nth-child(3) > span {
  animation-delay: 0.16s;
}
@keyframes reveal {
  to {
    transform: translateY(0);
  }
}

/* Intro paragraph under the name */
.lede {
  margin-top: clamp(1.5rem, 4vh, 2.5rem);
  max-width: 56ch;
  font-size: clamp(1.125rem, 1.5vw + 0.5rem, 1.5rem);
  line-height: 1.45;
  color: var(--ink-dim);
  font-weight: 400;
}
.lede strong {
  color: var(--ink);
  font-weight: 500;
}

/* Role / company / previously metadata grid */
.hero-meta {
  margin-top: clamp(2rem, 5vh, 3rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.25rem 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  max-width: 640px;
}
.hero-meta dt {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
  margin-bottom: 0.35rem;
}
.hero-meta dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink);
}
.hero-meta a {
  border-bottom: 1px solid var(--rule-strong);
  transition:
    border-color 0.25s var(--ease),
    color 0.25s var(--ease);
}
.hero-meta a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Hero visual: framed illustration on graph-paper grid ---------- */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  margin-inline: auto;
  width: 100%;
}
.hero-visual .frame {
  position: absolute;
  inset: 0;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(220, 38, 38, 0.05), transparent 60%), var(--bg-elev);
  overflow: hidden;
}
/* 8x8 hairline grid */
.hero-visual .frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--rule-strong) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-strong) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
  opacity: 0.55;
  pointer-events: none;
}
/* 2x2 stronger quadrant rule on top */
.hero-visual .frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--ink) 1px, transparent 1px),
    linear-gradient(to bottom, var(--ink) 1px, transparent 1px);
  background-size: 50% 50%;
  opacity: 0.12;
  pointer-events: none;
}
/* Centered illustration desaturates by default; restores on hover */
.hero-visual img {
  position: absolute;
  inset: 8%;
  width: 84%;
  height: 84%;
  object-fit: contain;
  filter: grayscale(1) contrast(1.05);
  opacity: 0.85;
  transition:
    filter 0.6s var(--ease),
    opacity 0.6s var(--ease),
    transform 0.8s var(--ease);
}
.hero-visual:hover img {
  filter: grayscale(0) contrast(1);
  opacity: 1;
  transform: scale(1.02);
}
/* Accent-colored corner crops at each corner of the frame */
.hero-visual .corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--accent);
}
.hero-visual .corner.tl {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}
.hero-visual .corner.tr {
  top: -1px;
  right: -1px;
  border-left: 0;
  border-bottom: 0;
}
.hero-visual .corner.bl {
  bottom: -1px;
  left: -1px;
  border-right: 0;
  border-top: 0;
}
.hero-visual .corner.br {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}
/* Availability tag with pulsing dot */
.hero-visual .tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.hero-visual .tag .dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 0.45rem;
  animation: pulse 2.4s var(--ease) infinite;
  vertical-align: middle;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.5);
  }
  50% {
    opacity: 0.6;
    box-shadow: 0 0 0 8px rgba(220, 38, 38, 0);
  }
}

/* ============================================================
         Index: oversized row links
         ============================================================ */
.index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.index-item a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.25rem, 3vw, 2rem) 0;
  border-bottom: 1px solid var(--rule);
  position: relative;
  transition: color 0.3s var(--ease);
}
/* Warm accent wash sweeps across the row on hover */
.index-item a::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(220, 38, 38, 0.06) 30%, transparent);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.index-item a:hover::before {
  opacity: 1;
}

.index-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
  font-variant-numeric: tabular-nums;
  min-width: 2.5ch;
}
.index-label {
  font-weight: 500;
  letter-spacing: -0.02em;
  font-size: clamp(1.75rem, 4.5vw, 3.5rem);
  line-height: 1.05;
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}
.index-label .sub {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 400;
}
.index-arrow {
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition:
    background 0.35s var(--ease),
    border-color 0.35s var(--ease),
    transform 0.35s var(--ease);
  flex-shrink: 0;
}
.index-arrow svg {
  width: 1rem;
  height: 1rem;
  transition: transform 0.35s var(--ease);
}
/* Arrow fills accent + nudges up-right on hover */
.index-item a:hover .index-arrow {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
.index-item a:hover .index-arrow svg {
  transform: translate(2px, -2px);
}
.index-item a:hover .index-label {
  color: var(--ink);
}

/* ============================================================
         About / editorial
         ============================================================ */
.editorial {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
}
/* Heading on left, body on right once there's room */
@media (min-width: 900px) {
  .editorial {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  }
}
.editorial h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0;
}
/* Serif-italic callout inside the h2 */
.editorial h2 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.editorial-body {
  font-size: clamp(1.0625rem, 1.1vw + 0.5rem, 1.25rem);
  line-height: 1.6;
  color: var(--ink-dim);
  max-width: 60ch;
  display: grid;
  gap: 1.25rem;
}
.editorial-body strong {
  color: var(--ink);
  font-weight: 500;
}
.editorial-body a {
  color: var(--ink);
  border-bottom: 1px solid var(--rule-strong);
  transition:
    color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}
.editorial-body a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ============================================================
         Contact band
         ============================================================ */
.contact {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: clamp(4rem, 12vh, 8rem) var(--gutter);
  text-align: center;
  position: relative;
  overflow: hidden;
}
/* Soft red glow behind the CTA */
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(220, 38, 38, 0.1), transparent 60%);
  pointer-events: none;
}
.contact .eyebrow {
  justify-content: center;
}
.contact .eyebrow .line {
  max-width: 80px;
}

/* Giant serif-italic CTA; hover fills bottom-to-top with accent */
.contact-cta {
  display: inline-block;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.25rem, 6vw, 5.5rem);
  letter-spacing: -0.015em;
  line-height: 1.05;
  position: relative;
  color: var(--ink);
}
.contact-cta span {
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 100% 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  /* Fill height and text color animate in lockstep */
  transition:
    background-size 0.5s var(--ease),
    color 0.5s var(--ease);
}
.contact-cta:hover span {
  background-size: 100% 100%;
  color: var(--on-accent);
}
.contact-sub {
  margin-top: 1.25rem;
  color: var(--ink-mute);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ============================================================
         Footer
         ============================================================ */
footer {
  padding: 2rem var(--gutter);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  position: relative;
  z-index: 2;
}

/* ============================================================
         Reveal-on-scroll (JS-only; falls back to visible w/o JS)
         ============================================================ */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.8s var(--ease),
    transform 0.8s var(--ease);
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}

/* ============================================================
         Accessibility: reduced motion
         ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .display .line > span {
    transform: none;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
         Print
         ============================================================ */
@media print {
  .aurora,
  .hero-visual .corner,
  .hero-visual .tag,
  body::before {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
  .nav {
    position: static;
    background: none;
  }
  .hero-visual img {
    filter: none;
    opacity: 1;
  }
}

/* ============================================================
         Mobile breakpoints
         ============================================================ */

/* <=720px: nav collapses into a hamburger drawer */
@media (max-width: 720px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-panel {
    position: absolute;
    inset: 100% 0 auto 0;
    margin-left: 0;
    background: color-mix(in oklab, var(--bg) 96%, transparent);
    backdrop-filter: saturate(140%) blur(14px);
    -webkit-backdrop-filter: saturate(140%) blur(14px);
    border-bottom: 1px solid var(--rule);
    padding: 0.5rem var(--gutter) 1.25rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    /* Delayed visibility keeps focus from reaching hidden links */
    transition:
      opacity 0.28s var(--ease),
      transform 0.28s var(--ease),
      visibility 0s linear 0.28s;
  }
  .nav-toggle-input:checked ~ .nav-panel {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition:
      opacity 0.28s var(--ease),
      transform 0.28s var(--ease),
      visibility 0s linear;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-links li + li {
    border-top: 1px solid var(--rule);
  }
  .nav-links a {
    display: block;
    padding: 0.9rem 0.25rem;
    font-size: 0.78rem;
  }
  .nav-links a::after {
    display: none;
  }

  /* Hamburger bars morph into X when the toggle is :checked */
  .nav-toggle-input:checked ~ .nav-toggle .hamburger > span:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }
  .nav-toggle-input:checked ~ .nav-toggle .hamburger > span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle-input:checked ~ .nav-toggle .hamburger > span:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }
}

/* <=480px: compact tweaks for small phones */
@media (max-width: 480px) {
  .brand-mark {
    width: 20px;
    height: 20px;
  }
  .index-item a {
    gap: 0.875rem;
  }
  .index-arrow {
    width: 2rem;
    height: 2rem;
  }
}