:root {
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --grad-top: #cde4ff;
  --bg: #ffffff;
  --heading: #00489f;
  --body: #454b52;
  --fg: #17191c;
  --muted: #5c626a;
  --link: #005fbd;
  --accent: #086ed7;
  --focus: #005fbd;
  --border: rgba(20, 24, 40, 0.15);
  --surface: rgba(255, 255, 255, 0.92);
  --detail-gutter: clamp(1.25rem, 5vw, 2.5rem);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --grad-top: #1b2a3c;
  --bg: #000000;
  --heading: #ffffff;
  --body: #d6dbe1;
  --fg: #f1f3f6;
  --muted: #a7b0bb;
  --link: #63adff;
  --accent: #4097ff;
  --focus: #76b8ff;
  --border: rgba(220, 230, 245, 0.19);
  --surface: rgba(0, 0, 0, 0.92);
  color-scheme: dark;
}


* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: clip;
  background: linear-gradient(180deg, var(--grad-top) 0, var(--bg) min(32rem, 34%));
  color: var(--body);
  font-family: "Public Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

::selection {
  background: var(--accent);
  color: #fff;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: max(0.75rem, env(safe-area-inset-top));
  left: max(0.75rem, env(safe-area-inset-left));
  padding: 0.65rem 0.9rem;
  transform: translateY(-180%);
  background: var(--fg);
  color: var(--bg);
  font-weight: 600;
  transition: transform 180ms var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

.reading-progress {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  pointer-events: none;
}

.reading-progress__bar {
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
}

.rz {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: max(clamp(4.75rem, 11vh, 7.5rem), calc(env(safe-area-inset-top) + 3.5rem)) max(var(--detail-gutter), env(safe-area-inset-right)) max(4rem, calc(env(safe-area-inset-bottom) + 3rem)) max(var(--detail-gutter), env(safe-area-inset-left));
}

.rz__top {
  position: sticky;
  z-index: 20;
  top: max(0.65rem, env(safe-area-inset-top));
  width: max-content;
  margin-left: -0.7rem;
}

.rz__back {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.45rem 0.7rem;
  gap: 0.45rem;
  background: var(--surface);
  color: var(--fg);
  font-family: "Poppins", sans-serif;
  font-size: 0.94rem;
  transition: color 180ms ease, transform 180ms var(--ease-out);
}

.rz__back svg {
  width: 20px;
  height: 20px;
}

.rz__masthead {
  max-width: 860px;
  margin-top: clamp(2rem, 5vw, 3.75rem);
}

.rz__eyebrow {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.rz__title {
  max-width: 16ch;
  margin-top: 0.7rem;
  color: var(--heading);
  font-family: "Poppins", sans-serif;
  font-size: clamp(2.15rem, 6vw, 4rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.rz__sub {
  max-width: 62ch;
  margin-top: 1.15rem;
  color: var(--body);
  font-size: clamp(1rem, 2vw, 1.12rem);
  line-height: 1.62;
}

.rz__meta {
  display: flex;
  flex-wrap: wrap;
  margin-top: 1.6rem;
  gap: 0.65rem 2rem;
  list-style: none;
}

.rz__meta li {
  display: grid;
  gap: 0.12rem;
  color: var(--fg);
  font-size: 0.9rem;
}

.rz__meta span {
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

/* live links (current site / iterations) at the end of the visual case study */
.case-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(2rem, 6vw, 4rem);
  gap: 0.75rem;
}

.case-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: "Poppins", sans-serif;
  font-size: 0.95rem;
  line-height: 1.3;
  transition: border-color 180ms ease, color 180ms ease;
}

.case-link span {
  display: grid;
  gap: 0.2rem;
}

.case-link small {
  color: var(--muted);
  font-family: "Public Sans", sans-serif;
  font-size: 0.72rem;
}

.case-link svg {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  color: var(--accent);
  transition: transform 220ms var(--ease-out);
}

.case-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.case-outline {
  max-width: 860px;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.case-outline > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 54px;
  gap: 1rem;
  color: var(--fg);
  font-size: 0.92rem;
  cursor: pointer;
  list-style: none;
}

.case-outline > summary::-webkit-details-marker {
  display: none;
}

.case-outline > summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.25rem;
  font-weight: 400;
  transition: transform 220ms var(--ease-out);
}

.case-outline[open] > summary::after {
  transform: rotate(45deg);
}

.case-outline__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0.35rem 0 1.65rem;
  gap: 1.4rem 2rem;
}

.case-outline h2 {
  color: var(--fg);
  font-size: 0.9rem;
  font-weight: 600;
}

.case-outline p {
  margin-top: 0.3rem;
  color: var(--body);
  font-size: 0.86rem;
  line-height: 1.6;
}

.cs-doc {
  display: block;
  margin-top: clamp(2rem, 6vw, 4rem);
}

.cs-doc img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  background: #eef1f5;
}

.rz__hint {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.rz__hint a,
.text-link {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.about-head {
  padding-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

/* text left, portrait right; the photo comes first in the DOM so it
   leads on mobile, and is placed in the right column on wider screens */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(13rem, 24vw, 17.5rem);
  grid-template-areas: "body photo";
  align-items: start;
  padding-top: clamp(1.75rem, 4vw, 2.5rem);
  border-top: 1px solid var(--border);
  gap: clamp(2rem, 5vw, 4.5rem);
}

.about__photo {
  grid-area: photo;
  margin: 0;
  border: 1px solid var(--border);
  background: #eef1f5;
}

.about__photo img {
  display: block;
  width: 100%;
  height: auto;
}

.about__body {
  grid-area: body;
  max-width: 70ch;
  color: var(--body);
  font-size: 20px;
  line-height: 1.7;
}

.about__body p + p {
  margin-top: 1.2em;
}

.about__body strong {
  color: var(--fg);
  font-weight: 600;
}

.case-end {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
  margin-top: clamp(4rem, 9vw, 7rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  gap: 1.5rem 2rem;
}

.case-end__label {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.case-end__links {
  display: grid;
  gap: 1rem;
}

.case-end__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  gap: 1rem;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: var(--fg);
  font-family: "Poppins", sans-serif;
  font-size: clamp(1rem, 2vw, 1.25rem);
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease, transform 220ms var(--ease-out);
}

.case-end__link span {
  display: grid;
  gap: 0.1rem;
}

.case-end__link small {
  color: var(--muted);
  font-family: "Public Sans", sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-end__link svg {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  color: var(--accent);
  transition: transform 220ms var(--ease-out);
}

.rz__doc {
  position: relative;
  margin-top: clamp(2rem, 5vw, 3rem);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 88%, var(--grad-top));
}

.rz__resume-page {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  background: transparent;
}

.rz__loading {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: none;
  place-items: center;
  background: color-mix(in srgb, var(--bg) 88%, var(--grad-top));
  color: var(--muted);
  font-size: 0.82rem;
}

.js .rz__loading {
  display: grid;
}

.rz__doc.is-loaded .rz__loading {
  display: none;
}

@media (hover: hover) and (pointer: fine) {
  .rz__back:hover {
    transform: translateX(-3px);
  }

  .case-end__link:hover {
    color: var(--link);
    transform: translateX(3px);
  }

  .case-end__link:hover svg {
    transform: translateX(4px);
  }

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

  .case-link:hover svg {
    transform: translate(2px, -2px);
  }
}

@media (max-width: 680px) {
  .case-links,
  .case-outline__grid,
  .case-end {
    grid-template-columns: 1fr;
  }

  .rz__title {
    max-width: 18ch;
  }

  .about__body {
    font-size: 1rem;
  }

  .about {
    grid-template-columns: 1fr;
    grid-template-areas: "photo" "body";
  }

  .about__photo {
    width: min(100%, 17.5rem);
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}