@import url("https://fonts.googleapis.com/css2?family=Archivo+Black&family=Monomaniac+One&family=Rethink+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,500;1,600;1,700;1,800&display=swap");

:root {
  /* Neutral */
  --color-neutral-black: #000;
  --color-neutral-900: #0d1213;
  --color-neutral-800: #131C1E;
  --color-neutral-700: #5E7479;
  --color-neutral-500: #8DA4A9;
  --color-neutral-white: #fff;

  /* Pink */
  --color-pink-light: #da679f;
  --color-pink-base: #e20670;
  --color-pink-dark: #A40652;
  

  /* Yellow */
  --color-yellow-light: #FAF0A2;
  --color-yellow-base: #f3e367;
  --color-yellow-dark: #d1c77a;

  /* Cyan */
  --color-cyan-light: #79F0E1;
  --color-cyan-base: #41d1be;
  --color-cyan-dark: #46ab9e;

  /* Claude */
  --color-claude: #D97757;

  /* Type scale */
  --font-family-base: "Rethink Sans", sans-serif;
  --font-family-display: "Rethink Sans", sans-serif;
  --font-family-mono: "Monomaniac One", "Rethink Sans", sans-serif;
  --font-family-label: "Archivo Black", "Rethink Sans", sans-serif;

  --font-size-sm: 1rem;           /* 16px — small body */
  --font-size-base: 1.125rem;     /* 18px — body */
  --font-size-lg: 1.5rem;         /* 24px — body large */
  --font-size-label-sm: 1rem;     /* 16px — label small */
  --font-size-h6: 1rem;       /* 16px */
  --font-size-h5: 1.25rem;    /* 20px */
  --font-size-h4: 1.25rem;    /* 20px */
  --font-size-h3: 1.5rem;     /* 24px */
  --font-size-h2: 3.25rem;    /* 52px */
  --font-size-h1: 4.25rem;    /* 68px */

  --line-height-heading: 1;
  --line-height-body: 1.6;

  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 750;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;


}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: clip;
  background-color: var(--color-neutral-900);
  color: var(--color-neutral-white);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
}

/* Headings */

h1, h2, h3, h4, h5, h6 {
  margin-block: 0;
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-heading);
}

h1 { font-size: var(--font-size-h1); font-family: var(--font-family-display); letter-spacing: 0.02em; }
h2 { font-size: var(--font-size-h2); font-family: var(--font-family-display); }
h3 { font-size: var(--font-size-h3); font-family: var(--font-family-display); }
h4 { font-size: var(--font-size-h4); font-family: var(--font-family-display); }
h5 { font-size: var(--font-size-h5); font-family: var(--font-family-mono); font-weight: var(--font-weight-regular); text-transform: uppercase; letter-spacing: 0.1em; }
h6 { font-size: var(--font-size-h6); font-family: var(--font-family-mono); font-weight: var(--font-weight-regular);text-transform: uppercase; letter-spacing: 0.1em; }

/* Page layout */

body > header,
main,
body > footer {
  padding-inline: 1rem;
}

main {
  margin-top: 40px;
  margin-bottom: 40px;
}

.page-header {
  margin-bottom: 40px;
  position: relative;
}


.page-header .subheading {
  margin-top: 40px;
  color: var(--color-neutral-white);
  transition: opacity 600ms ease;
}


@media (min-width: 1024px) {
  body > header,
  main,
  body > footer {
    padding-inline: 2rem;
  }

  main {
    margin-top: 60px;
    margin-bottom: 60px;
  }

  .page-header {
    margin-bottom: 60px;
  }

  .page-header h1 {
    max-width: 75%;
  }
}

@media (min-width: 1440px) {
  body > header,
  main,
  body > footer {
    max-width: 2000px;
    margin-inline: auto;
  }

  main {
    margin-top: 100px;
  }

  .page-header {
    margin-bottom: 100px;
  }
}

/* Hamburger toggle */

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: inherit;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  border-radius: var(--radius-sm);
}

@media (max-width: 1023px) {
  body > header {
    flex-wrap: wrap;
    height: auto;
    min-height: 80px;
  }

  .nav-toggle {
    margin-left: auto;
  }

  nav[aria-label="Primary"] {
    width: 100%;
  }
}

@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }
}

/* Site header */

body > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

body > header a,
body > header a:visited {
  color: var(--color-neutral-white);
  text-decoration: none;
  transition: color 250ms ease;
}

/* Primary nav */

nav[aria-label="Primary"] ul {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
}

nav[aria-label="Primary"].is-open ul {
  display: flex;
  flex-direction: column;
}

@media (min-width: 1024px) {
  nav[aria-label="Primary"] ul {
    display: flex;
    gap: 60px;
  }
}

/* Case study header */

.case-study-header {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-bottom: 40px;
}

/* Case study images */

.case-study-media img,
.case-study-featured img,
.case-study-captions img {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
}

.case-study-media iframe,
.case-study-captions iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  border: none;
  display: block;
}

.case-study-media {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.case-study-media figure,
.case-study-captions figure {
  width: 100%;
  margin: 0;
}

.case-study-media figcaption,
.case-study-captions figcaption {
  font-size: var(--font-size-sm);
  margin-bottom: 20px;
  color: var(--color-neutral-500);
}

@media (min-width: 1024px) {
  .case-study-header h1 {
    max-width: 75%;
  }
}

/* Case study layout */

.case-study-body {
  display: grid;
  grid-template-areas:
    "content featured"
    "content captions";
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: start;
  padding-top: 40px;
}

.case-study-content {
  grid-area: content;
  position: sticky;
  top: 0;
}

.case-study-featured {
  grid-area: featured;
}

.case-study-captions {
  grid-area: captions;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

@media (max-width: 1023px) {
  .case-study-body {
    grid-template-areas:
      "featured"
      "content"
      "captions";
    grid-template-columns: 1fr;
  }

  .case-study-content {
    position: static;
  }
}

/* Accordions */

details {
  margin-bottom: 32px;
}
details summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  list-style: none;
  transition: color 0.2s ease;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "+";
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-h5) * 2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: var(--line-height-heading);
  flex-shrink: 0;
}

details.is-open summary::after {
  content: "−";
}

details.is-open summary {
  margin-bottom: 12px;
}

details:nth-child(3n+1) summary       { color: var(--color-yellow-base); }
details:nth-child(3n+2) summary       { color: var(--color-pink-light); }
details:nth-child(3n+3) summary       { color: var(--color-cyan-dark); }

details:nth-child(3n+1) summary:hover { color: var(--color-yellow-light); }
details:nth-child(3n+2) summary:hover { color: var(--color-pink-base); }
details:nth-child(3n+3) summary:hover { color: var(--color-cyan-light); }

/* Accordion animation */

details > .accordion-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

details.is-open > .accordion-body {
  grid-template-rows: 1fr;
}

.accordion-inner {
  overflow: hidden;
}

/* Case study back nav */

.case-study-back {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: var(--color-neutral-500);
  text-decoration: none;
  margin-bottom: 20px;
  transition: color 250ms ease;
}

.case-study-back:hover {
  color: var(--color-cyan-base);
}

.case-study-back-icon {
  display: flex;
  align-items: center;
}

.case-study-back h6 {
  margin-top: -3px;
}

/* Case study link */

.case-study-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-neutral-white);
  text-decoration: none;
  margin-top: 40px;
  transition: color 250ms ease;
}

.case-study-link:hover {
  color: var(--color-yellow-base);
}

.case-study-link-icon {
  display: flex;
  align-items: center;
}

/* Tag */

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 12px 6px;
  white-space: nowrap;
  user-select: none;
  border: 1px solid;
  border-radius: var(--radius-sm);
  line-height: 1;
}

.tag--yellow { color: var(--color-yellow-base); border-color: var(--color-yellow-dark); }
.tag--cyan   { color: var(--color-cyan-base);   border-color: var(--color-cyan-dark); }
.tag--pink   { color: var(--color-pink-base);   border-color: var(--color-pink-dark); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Label small */

.label-small {
  font-family: var(--font-family-label);
  font-size: var(--font-size-label-sm);
}

.label-small--dark  { color: var(--color-neutral-900); }
.label-small--light { color: var(--color-neutral-white); }

/* Nav */

body > header > a {
  font-family: var(--font-family-label);
  font-size: var(--font-size-label-sm);
}

.site-logo {
  display: flex;
  align-items: center;
}

.site-logo img {
  width: 180px;
  height: auto;
  display: block;
}

nav[aria-label="Primary"] a {
  font-family: var(--font-family-label);
  font-size: var(--font-size-label-sm);
  transition: color 250ms ease;
}

nav[aria-label="Primary"] a:hover {
  color: var(--color-cyan-base);
}

.section-label {
  color: var(--color-neutral-700);
  margin-bottom: 64px;
}

/* Cyan header variant */

body > header.header--cyan {
  background-color: var(--color-cyan-base);
}

body > header.header--cyan a,
body > header.header--cyan a:visited {
  color: var(--color-neutral-900);
}

body > header.header--cyan a:hover {
  color: var(--color-neutral-black);
}

/* Projects grid — per-card accent colour */

.case-study-grid li:nth-child(3n+1) { --card-accent: var(--color-pink-base); }
.case-study-grid li:nth-child(3n+2) { --card-accent: var(--color-cyan-base); }
.case-study-grid li:nth-child(3n+3) { --card-accent: var(--color-yellow-base); }

/* Projects grid */

.case-study-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Row A (items 1,2 then 5,6...): 2-col then 1-col */
.case-study-grid li:nth-child(4n+1) { grid-column: span 2; }
.case-study-grid li:nth-child(4n+2) { grid-column: span 1; }

/* Row B (items 3,4 then 7,8...): 1-col then 2-col */
.case-study-grid li:nth-child(4n+3) { grid-column: span 1; }
.case-study-grid li:nth-child(4n+4) { grid-column: span 2; }

.case-study-grid li {
  display: flex;
}

.case-study-grid article {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  cursor: pointer;
}

.case-study-card-meta h5 {
  color: var(--color-neutral-500);
}


.case-study-grid img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.case-study-card-image {
  position: relative;
  height: 550px;
  flex-shrink: 0;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.case-study-grid article:hover .case-study-card-image {
  transform: translate(6px, -6px);
  box-shadow: -8px 8px 0 0 var(--card-accent);
  border-color: #fff;
}

.case-study-card-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.case-study-card-divider {
  border: none;
  border-top: 1.5px solid rgba(255, 255, 255, 0.15);
  margin-block: 16px;
}

.case-study-card-footer {
  margin-top: auto;
  display: none;
}

.case-study-card-footer-meta {
  color: rgba(255, 255, 255, 0.4);
}

.card-read-more {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: var(--card-accent);
  text-decoration: none;
}

.card-read-more::after {
  content: '';
  position: absolute;
  inset: 0;
}

.card-read-more h6 {
  color: var(--card-accent);
}

.card-read-more:visited {
  color: var(--card-accent);
}

.card-arrow {
  display: inline-flex;
  align-items: center;
  transition: transform 120ms ease, color 250ms ease;
  color: var(--color-neutral-white);
}

.case-study-grid article:hover .card-arrow {
  transform: translateX(5px);
  color: var(--card-accent);
}

@media (max-width: 1023px) {
  .case-study-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-study-grid li:nth-child(4n+1),
  .case-study-grid li:nth-child(4n+2),
  .case-study-grid li:nth-child(4n+3),
  .case-study-grid li:nth-child(4n+4) {
    grid-column: span 1;
  }

  .case-study-card-image {
    height: 380px;
  }
}

@media (max-width: 759px) {
  .case-study-grid {
    grid-template-columns: 1fr;
  }

  .case-study-card-image {
    height: 280px;
  }
}

/* Body text */

p {
  margin-block: 0;
}

small {
  font-size: var(--font-size-sm);
}

.body-large {
  font-size: var(--font-size-lg);
}

.body-small {
  font-size: var(--font-size-sm);
}

/* Client logos carousel */

.client-logos-section {
  padding-block: 80px;
}

.logos-carousel {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.logos-track {
  display: flex;
  align-items: center;
  gap: 100px;
  width: max-content;
  animation: logos-scroll 80s linear infinite;
}

.logos-carousel:hover .logos-track {
  animation-play-state: paused;
}

.logos-track a {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logos-track img {
  height: 30px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(42%) sepia(100%) hue-rotate(152deg) saturate(69%) brightness(88%);
  transition: filter 400ms ease;
}

.logos-track a:hover img {
  filter: none;
}

.logos-track img[src*="cognicia"],
.logos-track img[src*="travelstart"] {
  height: 60px;
}

.logos-track img[src*="absa"] {
  height: 40px;
}

.logos-track img[src*="eachother"] {
  height: 22px;
}

.logos-track img[src*="unboxed"] {
  height: 22px;
}

@keyframes logos-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .logos-track {
    animation: none;
  }
}

/* Case study page footer */

.case-study-page-footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 100px;
}

.cs-footer-left {
  --card-accent: var(--color-pink-base);
  height: 185px;
  padding: 0 32px;
  background: var(--color-yellow-base);
  color: var(--color-neutral-900);
  border-radius: var(--radius-md);
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 24px;
  text-decoration: none;
  transition: box-shadow 120ms ease, transform 120ms ease;
}

.cs-footer-left h2 {
  margin: 0;
}


.cs-footer-left:hover {
  transform: translate(6px, -6px);
  box-shadow: -8px 8px 0 0 var(--card-accent);
}

.cs-footer-left-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.cs-footer-right {
  --card-accent: var(--color-cyan-base);
  height: 185px;
  padding: 0 32px;
  background: var(--color-neutral-800);
  color: var(--color-neutral-white);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  text-decoration: none;
  transition: box-shadow 120ms ease, transform 120ms ease;
}

.cs-footer-right h2 {
  margin: 0;
  margin-bottom: 12px;
}

.cs-footer-right:hover {
  transform: translate(6px, -6px);
  box-shadow: -8px 8px 0 0 var(--card-accent);
}


.cs-footer-right .case-study-back {
  margin-top: 8px;
  margin-bottom: 8px;
  pointer-events: none;
}

.cs-footer-right:hover .case-study-back {
  color: var(--color-neutral-500);
}

.cs-footer-right .card-read-more {
  margin-top: 8px;
  pointer-events: none;
}

.cs-footer-right .card-read-more::after {
  display: none;
}

.cs-footer-right:hover .card-arrow {
  transform: translateX(5px);
  color: var(--card-accent);
}

/* Footer */

.footer-scroll-top {
  display: flex;
  color: var(--color-neutral-700);
  text-decoration: none;
  transition: color 120ms ease;
}

.footer-scroll-top-icon {
  transition: transform 120ms ease;
}

.footer-scroll-top:hover {
  color: var(--color-cyan-base);
}

.footer-scroll-top:hover .footer-scroll-top-icon {
  transform: translateY(-4px);
}

.footer-divider {
  border: none;
  border-top: 1px solid var(--color-neutral-700);
  margin: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 24px;
  color: var(--color-neutral-500);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-icons {
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-icon {
  font-size: 1.53rem;
  line-height: 1;
  font-weight: var(--font-weight-bold);
}

.footer-icon--pink   { color: var(--color-pink-base); }
.footer-icon--yellow { color: var(--color-claude); }

.footer-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-social {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-neutral-500);
  text-decoration: none;
  transition: color 120ms ease;
}

.footer-social h6 {
  color: inherit;
}

.footer-social-icon {
  display: flex;
  align-items: center;
}

.footer-social:nth-child(1):hover { color: var(--color-pink-base); }
.footer-social:nth-child(2):hover { color: var(--color-cyan-base); }

.footer-copyright {
  color: var(--color-neutral-500);
  margin: 0;
}

/* Page layout modifiers */

.main--flush {
  margin-top: 0;
}

/* Button (minimal — to be componentized) */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 14px;
  border-radius: 4px;
  border: 2px solid var(--color-neutral-900);
  font-family: var(--font-family-label);
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
  box-shadow: -4px 4px 0 0 var(--color-neutral-900);
  background-color: var(--color-pink-base);
  color: var(--color-neutral-white);
  transition: background-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.btn:hover {
  background-color: var(--color-pink-dark);
  box-shadow: none;
  transform: translate(-4px, 4px);
}


/* About hero */

.about-hero {
  margin-inline: -1rem;
  background-color: var(--color-cyan-base);
  color: var(--color-neutral-black);
}

.about-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
  padding: 60px 1rem;
}

.about-hero__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 540px;
}

.about-hero__content p {
  margin: 0;
}

.about-hero__image {
  position: relative;
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  min-height: 360px;
  overflow: hidden;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
  cursor: pointer;
}

.about-hero__image:hover {
  transform: translate(6px, -6px);
  box-shadow: -8px 8px 0 0 var(--color-yellow-base);
  border-color: #fff;
}

.about-hero__image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.about-hero__img--alt {
  opacity: 0;
  transition: opacity 200ms ease;
}

.about-hero__image:hover .about-hero__img--alt {
  opacity: 1;
}

@media (min-width: 1024px) {
  .about-hero {
    margin-inline: -2rem;
  }

  .about-hero__inner {
    flex-direction: row;
    align-items: center;
    padding: 80px 2rem;
    gap: 60px;
  }

  .about-hero__content {
    flex: 1;
  }

  .about-hero__image {
    width: 720px;
    max-width: 720px;
    flex-shrink: 0;
    min-height: 480px;
  }
}