/* ============================================
   Zella — shared styles
   Editorial, bespoke, restrained motion.
   Fully fluid responsive system.
   ============================================ */

/* ---------- Font Setup ---------- */

@font-face {
  font-family: 'Helvetica';
  src: url('assets/fonts/Helvetica.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Helvetica';
  src: url('assets/fonts/Helvetica-Bold.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Colors */
  --paper: #ffffff;
  --paper-deep: #f5f5f5;
  --ink: #17140f;
  --ink-soft: #4a453c;
  --accent: #5865F2;
  --accent-soft: #7983F5;
  --green: #10B981;
  --line: rgba(23, 20, 15, 0.14);

  /* Layout */
  --max-w: 1180px;
  --gate-blur: 14px;

  /* Fluid spacing: 320px → 1200px viewport */
  --space-3xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.375rem);
  --space-2xs: clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem);
  --space-xs: clamp(0.75rem, 0.6rem + 0.75vw, 1.125rem);
  --space-s: clamp(1rem, 0.8rem + 1vw, 1.5rem);
  --space-m: clamp(1.5rem, 1.1rem + 2vw, 2.5rem);
  --space-l: clamp(2rem, 1.4rem + 3vw, 4rem);
  --space-xl: clamp(3rem, 2rem + 5vw, 6rem);
  --space-2xl: clamp(4rem, 2.5rem + 7.5vw, 9rem);
  --space-3xl: clamp(6rem, 4rem + 10vw, 12rem);

  /* Fluid typography */
  --text-2xs: clamp(0.625rem, 0.58rem + 0.2vw, 0.75rem);
  --text-xs: clamp(0.6875rem, 0.63rem + 0.3vw, 0.875rem);
  --text-s: clamp(0.8125rem, 0.75rem + 0.3vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.875rem + 0.3vw, 1.0625rem);
  --text-m: clamp(1rem, 0.9rem + 0.5vw, 1.25rem);
  --text-l: clamp(1.125rem, 0.95rem + 0.9vw, 1.5rem);
  --text-xl: clamp(1.375rem, 1.1rem + 1.4vw, 2rem);
  --text-2xl: clamp(1.625rem, 1.2rem + 2.1vw, 2.75rem);
  --text-3xl: clamp(2rem, 1.4rem + 3vw, 3.5rem);
  --text-4xl: clamp(2.25rem, 1.5rem + 3.75vw, 4.5rem);

  /* Fluid wrap padding */
  --wrap-padding: clamp(1.25rem, 0.75rem + 2.5vw, 2.5rem);

  /* Header height */
  --header-h: clamp(60px, 50px + 2vw, 76px);
}

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

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

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

/* Content links turn green on hover */
main a:hover {
  color: var(--green);
}

/* Exceptions - cards keep their own hover behavior */
main a.cs-card:hover,
main a.cs-featured-card:hover,
main a.cs-explore-item:hover {
  color: inherit;
}

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

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--wrap-padding);
}

/* ---------- Header / nav ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Add padding-top to body to account for fixed header */
body {
  padding-top: var(--header-h);
}

/* Home page uses sticky header, so no body padding needed */
body.home-locked {
  padding-top: 0;
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: var(--header-h);
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--border);
  z-index: 250;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.reading-progress.visible {
  opacity: 1;
}

.reading-progress-bar {
  height: 100%;
  background: var(--green);
  width: 0%;
  transition: width 0.05s linear;
}

.reading-time {
  position: fixed;
  top: calc(var(--header-h) + 12px);
  right: var(--gutter);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--muted);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 250;
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 8px;
  border-radius: 4px;
}

.reading-time.visible {
  opacity: 1;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.wordmark {
  font-family: 'Helvetica', sans-serif;
  font-weight: 700;
  font-size: var(--text-l);
  letter-spacing: 0.02em;
  z-index: 110;
}

.wordmark span {
  color: var(--accent);
}

.logo-img {
  height: clamp(20px, 2.5vw, 28px);
  width: auto;
  display: block;
}

/* Desktop nav */
nav.doors {
  display: flex;
  gap: clamp(1.25rem, 1rem + 2vw, 2.25rem);
}

nav.doors a {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.2s ease;
}

nav.doors a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: #10B981;
  transform: scaleX(0);
  transform-origin: var(--underline-origin, 0% 50%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.doors a:hover,
nav.doors a.active {
  color: var(--ink);
}

nav.doors a:hover::after {
  transform: scaleX(1);
}

nav.doors a.active::after {
  transform: scaleX(1);
  transform-origin: 0% 50%;
}

/* Mobile hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 12px;
  min-width: 44px;
  min-height: 44px;
  z-index: 110;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav - fullscreen overlay */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
    position: relative;
    z-index: 10001;
  }

  nav.doors {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background-color: #000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    gap: 1rem;
    opacity: 0;
    visibility: hidden;
    z-index: 10000;
    -webkit-transform: translateY(-100%);
    transform: translateY(-100%);
    -webkit-transition: opacity 0.3s ease, visibility 0.3s ease, -webkit-transform 0.3s ease;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  }

  nav.doors.open {
    opacity: 1;
    visibility: visible;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }

  nav.doors a {
    font-size: 2.5rem;
    font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, sans-serif;
    font-weight: 300;
    text-transform: none;
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.9);
    padding: 1rem 2rem;
    padding-bottom: 1rem;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    border: none;
    border-bottom: none;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    position: relative;
  }

  nav.doors a:active {
    color: #fff;
  }

  nav.doors a::after {
    content: none;
    display: none;
  }

  nav.doors a::before {
    content: none;
    display: none;
  }

  .nav-toggle.active span {
    background: #fff;
  }

  .nav-overlay {
    display: none;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-xl) 0 var(--space-2xl);
  margin-top: var(--space-2xl);
}

.site-footer .wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  font-size: var(--text-s);
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

.footer-left {
  color: var(--ink-soft);
  order: 2;
}

.footer-right {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s) var(--space-l);
  order: 1;
}

/* Chunky mobile footer links */
@media (max-width: 599px) {
  .site-footer {
    padding: var(--space-m) 0 var(--space-l);
    margin-top: var(--space-xl);
  }

  .footer-link {
    font-size: var(--text-l);
    font-weight: 500;
    padding: var(--space-xs) 0;
  }
}

@media (min-width: 600px) {
  .site-footer .wrap {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-m);
  }

  .footer-left,
  .footer-right {
    order: unset;
  }
}

.footer-link {
  color: var(--ink);
  position: relative;
  transition: color 0.2s ease;
}

.footer-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 3px;
  background: #10B981;
  transform: scaleX(0);
  transform-origin: var(--underline-origin, 0% 50%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.footer-link:hover::after {
  transform: scaleX(1);
}

/* ---------- Landing / essay ---------- */

.essay {
  padding: var(--space-2xl) 0 var(--space-xl);
  max-width: 760px;
}

.essay-wide {
  max-width: none;
  padding-top: var(--space-l);
}

.essay-wide h1 {
  max-width: 100%;
}

/* Fluid canvas effect - HOMEPAGE ONLY (orb + letter scatter) */
#ink-canvas {
  display: none;
}

.home-locked #ink-canvas {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 200;
  mix-blend-mode: exclusion;
}

/* Homepage locked to viewport */
.home-locked {
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #fff8f6 0%, #ffffff 40%, #f8f6ff 100%);
}

.home-locked main,
.home-locked .site-footer {
  position: relative;
  z-index: 2;
}

/* On homepage, header should be below the glow canvas */
.home-locked .site-header {
  position: sticky;
  z-index: 1;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.home-locked main.wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: transparent;
}

.home-locked .essay-wide {
  padding-top: 0;
  padding-bottom: 0;
  width: 100%;
}

.home-locked .essay-wide h1 {
  font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  line-height: 1.25;
  max-width: 100%;
  position: relative;
  z-index: 201;
}

.home-locked .site-footer {
  margin-top: 0;
  padding: var(--space-m) 0;
  background: var(--green);
  border: none !important;
  border-top: none !important;
  position: relative;
  z-index: 100;
  overflow: visible;
}

.home-locked .site-footer .wrap {
  color: rgba(255, 255, 255, 0.6);
}

.home-locked .site-footer .footer-left {
  color: rgba(255, 255, 255, 0.6);
}

.home-locked .site-footer .footer-link {
  color: rgba(255, 255, 255, 0.85);
}

.home-locked .site-footer .footer-link:hover {
  color: #fff;
}

.home-locked .site-footer .footer-link::after {
  background: #fff;
}

/* ---------- Logo Marquee ---------- */

.logo-marquee {
  overflow: hidden;
  padding: var(--space-l) 0;
  margin: var(--space-xl) 0;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  width: 100vw;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.logo-marquee-label {
  display: block;
  text-align: center;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-m);
}

.logo-marquee-track {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  width: max-content;
  animation: marquee-scroll 30s linear infinite;
}

.logo-marquee-track img {
  height: 96px;
  width: auto;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: opacity 0.3s ease, filter 0.3s ease;
  cursor: pointer;
}

.logo-marquee-track img:hover {
  opacity: 1;
  filter: grayscale(0%);
}

@keyframes marquee-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

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

.essay .kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-m);
  display: block;
}

.essay h1 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-3xl);
  line-height: 1.25;
  margin: 0 0 var(--space-m);
  color: var(--ink);
}

.essay p {
  font-size: var(--text-m);
  color: var(--ink-soft);
  margin-bottom: var(--space-s);
}

.doors-list {
  margin-top: var(--space-l);
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.doors-list a {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding: var(--space-s) 0;
  border-bottom: 1px solid var(--line);
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-xl);
  transition: padding-left 0.25s ease, color 0.25s ease;
}

@media (min-width: 480px) {
  .doors-list a {
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
  }
}

.doors-list a:hover {
  padding-left: var(--space-xs);
  color: var(--accent);
}

.doors-list .tag {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- Section hero ---------- */

.section-hero {
  padding: var(--space-l) 0 var(--space-s);
  max-width: 820px;
}

/* Minimal hero for Art/Design pages */
.section-hero h1:only-child {
  font-size: var(--text-3xl);
  font-weight: 400;
  margin: 0;
}

.section-hero .kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-s);
  display: block;
}

.section-hero h1 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-4xl);
  line-height: 1.12;
  margin: 0 0 var(--space-m);
}

.section-hero p.lede {
  font-size: var(--text-m);
  color: var(--ink-soft);
  max-width: 640px;
  line-height: 1.65;
}

/* ---------- Designer Intro ---------- */

.designer-intro {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-xl);
  padding: var(--space-s) 0 var(--space-l);
  margin-bottom: var(--space-l);
  align-items: start;
}

@media (max-width: 900px) {
  .designer-intro {
    grid-template-columns: 1fr;
    gap: var(--space-l);
    min-height: auto;
    padding-bottom: var(--space-xl);
    margin-bottom: var(--space-xl);
  }
}

.designer-intro-main p {
  font-family: 'Helvetica', sans-serif;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 400;
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: var(--space-m);
}

.designer-intro-main p:first-child {
  font-style: normal;
  font-weight: 500;
  margin-top: 0;
}

.designer-intro-sidebar .exp-item:first-child {
  margin-top: 0;
}

.designer-intro-sidebar {
  position: sticky;
  top: calc(var(--header-h) + var(--space-xl));
  border-left: 2px solid var(--ink);
  padding-left: var(--space-m);
  align-self: start;
}

@media (max-width: 900px) {
  .designer-intro-sidebar {
    border-left: none;
    border-top: 2px solid var(--ink);
    padding-left: 0;
    padding-top: var(--space-m);
  }
}

.exp-item {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-m);
}

.exp-item:last-child {
  margin-bottom: 0;
}

.exp-date {
  font-size: var(--text-2xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: var(--space-3xs);
}

.exp-role {
  font-size: var(--text-s);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}

.exp-org {
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: 2px;
}

/* ---------- Hero with sidebar ---------- */

.hero-with-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  max-width: none;
}

@media (min-width: 768px) {
  .hero-with-sidebar {
    grid-template-columns: 1fr 280px;
    gap: var(--space-2xl);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .hero-with-sidebar {
    grid-template-columns: 1fr 320px;
  }
}

.hero-main {
  max-width: 720px;
}

.hero-sidebar h2 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-l);
  margin: 0 0 var(--space-m);
}

/* ---------- Two column ---------- */

.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  padding: var(--space-l) 0;
  border-top: 1px solid var(--line);
}

@media (min-width: 700px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

.two-col h2 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-xl);
  margin: 0 0 var(--space-s);
}

.two-col p {
  color: var(--ink-soft);
  font-size: var(--text-s);
  line-height: 1.7;
}

.timeline {
  list-style: none;
}

.timeline li {
  display: flex;
  gap: var(--space-s);
  padding: var(--space-xs) 0;
  font-size: var(--text-s);
}

.timeline .yr {
  color: var(--accent);
  font-family: 'Helvetica', sans-serif;
  min-width: clamp(50px, 10vw, 64px);
  flex-shrink: 0;
}

/* ---------- Case study grid ---------- */

.cs-grid-heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--line);
  margin-bottom: var(--space-2xs);
}

@media (min-width: 480px) {
  .cs-grid-heading {
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
  }
}

.cs-grid-heading h2 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-xl);
}

.cs-grid-heading span {
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.section-header {
  text-align: center;
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-4xl);
  line-height: 1.12;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-m);
}

/* ---------- Featured Case Study Cards ---------- */

.cs-featured-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
  margin: var(--space-l) 0;
}

.cs-featured-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-m);
  padding: var(--space-m);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  min-height: 396px;
  position: relative;
  background: var(--paper);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

@media (min-width: 800px) {
  .cs-featured-card {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-l);
    padding: var(--space-l);
  }
}

.cs-featured-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cs-featured-title {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
  margin: var(--space-xs) 0 var(--space-s);
}

.cs-featured-desc {
  font-size: var(--text-m);
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: var(--space-m);
}

.cs-featured-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s) var(--space-m);
}

.cs-featured-link {
  font-size: var(--text-s);
  font-weight: 500;
  color: var(--ink);
  transition: color 0.2s ease;
}

.cs-featured-link:hover {
  color: var(--green);
}

.cs-featured-preview {
  border: 1px solid var(--ink-faint);
  border-radius: 10px;
  overflow: hidden;
  background: #f5f5f5;
  display: flex;
  flex-direction: column;
}

.browser-chrome {
  display: flex;
  align-items: center;
  border-radius: 10px 10px 0 0;
  gap: var(--space-s);
  padding: 10px 14px;
  background: #e8e8e8;
  border-bottom: 1px solid var(--ink-faint);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ccc;
}

.browser-dots span:first-child { background: #ff5f57; }
.browser-dots span:nth-child(2) { background: #ffbd2e; }
.browser-dots span:last-child { background: #28ca41; }

.browser-url {
  flex: 1;
  font-size: 11px;
  color: #666;
  background: #fff;
  padding: 4px 10px;
  border-radius: 4px;
  text-align: center;
}

.browser-viewport {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  cursor: grab;
  position: relative;
}

.browser-viewport.is-dragging {
  cursor: grabbing;
}

.browser-viewport .scroll-img-drag {
  width: 100%;
  display: block;
  transition: transform 0.1s ease-out;
}

.browser-viewport-iframe {
  cursor: default;
}

.browser-viewport-iframe iframe {
  width: 100%;
  height: 100%;
  border: none;
  pointer-events: none;
}

/* Featured card live site previews */
.cs-featured-preview .browser-viewport {
  aspect-ratio: 16 / 10;
  position: relative;
  overflow: hidden;
}

.cs-featured-preview .browser-viewport iframe {
  position: absolute;
  top: 0;
  left: 0;
  border: none;
  pointer-events: none;
  transform: scale(0.5);
  transform-origin: top left;
  width: 200%;
  height: 200%;
  animation: none;
}

/* ---------- Case Study Grid ---------- */

.cs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  padding: var(--space-xl) 0 var(--space-2xl);
}

@media (min-width: 700px) {
  .cs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-m);
  }
}

.cs-card {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: var(--space-m);
  border-radius: 12px;
  background: var(--paper);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.cs-card-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 4px;
  background: var(--paper-deep);
  margin-bottom: var(--space-s);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 30px rgba(88, 101, 242, 0.15);
}

.cs-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.cs-card:hover .cs-card-image img {
  transform: scale(1.04);
}

.cs-card-image span {
  font-size: var(--text-s);
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

/* Scrolling card image - continuous auto-scroll */
.cs-card-scroll {
  position: relative;
  display: block;
}

.cs-card-scroll .scroll-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  animation: card-scroll 20s ease-in-out infinite;
  will-change: transform;
  cursor: grab;
}

.cs-card-scroll.is-dragging .scroll-img {
  animation-play-state: paused;
  cursor: grabbing;
}

@keyframes card-scroll {
  0%, 5% {
    transform: translateY(0);
  }
  45%, 55% {
    transform: translateY(-50%);
  }
  95%, 100% {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cs-card-scroll .scroll-img {
    animation: none;
    transform: translateY(0);
  }
}

/* Mobile: disable scroll animations, fit images */
@media (max-width: 768px) {
  .cs-card-scroll .scroll-img {
    position: relative;
    animation: none;
    height: 100%;
    object-fit: cover;
  }

  /* CZI mobile - show dashboard content */
  .cs-card[href="case-study-czi.html"] .scroll-img {
    object-position: left bottom;
  }

  /* IPG mobile - center on phone top */
  .cs-card[href="case-study-ipg.html"] .scroll-img {
    object-position: center top;
  }
}

/* CZI card - show dashboard content, crop top whitespace */
.cs-card[href="case-study-czi.html"] .scroll-img {
  animation-name: card-scroll-czi;
  transform: translateY(-30%);
}

@keyframes card-scroll-czi {
  0%, 5% {
    transform: translateY(-30%);
  }
  45%, 55% {
    transform: translateY(-55%);
  }
  95%, 100% {
    transform: translateY(-30%);
  }
}

/* MRU card - shift up to center key info (crop top whitespace) */
.cs-card[href="case-study-mru.html"] .cs-card-image img {
  object-position: center 35%;
}

/* IPG card - fit phone, white background */
.cs-card[href="case-study-ipg.html"] .cs-card-image {
  background: #fff;
}
.cs-card[href="case-study-ipg.html"] .cs-card-image img {
  object-fit: contain;
  object-position: center center;
}

/* XQ card - center the covers */
.cs-card[href="case-study-xq.html"] .cs-card-image img {
  object-position: 50% center;
}

.cs-card-tags {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-xs);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.cs-card-tags li {
  font-size: var(--text-xs);
  color: var(--ink-soft);
}

.cs-card-tags li:not(:last-child)::after {
  content: '·';
  margin-left: var(--space-xs);
  color: var(--ink-soft);
  opacity: 0.5;
}

.cs-card-title {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-2xl);
  line-height: 1.15;
  margin: 0;
  color: var(--ink);
  transition: color 0.2s ease;
}

.cs-card:hover .cs-card-title {
  color: var(--accent);
}

.cs-card-placeholder .cs-card-image {
  border: 1px solid rgba(88, 101, 242, 0.15);
  background: transparent;
}

.cs-card-placeholder:hover .cs-card-image {
  border-color: rgba(88, 101, 242, 0.25);
}

/* ---------- Gate ---------- */

.gate {
  min-height: 70vh;
  min-height: 70svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-l) var(--wrap-padding);
}

.gate-box {
  max-width: min(380px, 100%);
  text-align: center;
}

.gate-box .kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-s);
  display: block;
}

.gate-box h1 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-2xl);
  margin: 0 0 var(--space-xs);
}

.gate-box p {
  color: var(--ink-soft);
  font-size: var(--text-s);
  margin-bottom: var(--space-m);
}

.gate-input-row {
  display: flex;
  border-bottom: 1.5px solid var(--ink);
  padding-bottom: var(--space-xs);
  gap: var(--space-xs);
}

.gate-input-row input {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-xl);
  letter-spacing: 0.15em;
  text-align: center;
  color: var(--ink);
  outline: none;
}

.gate-input-row input::placeholder {
  color: var(--ink-soft);
  opacity: 0.5;
  letter-spacing: 0.05em;
  font-size: var(--text-s);
}

.gate-input-row button {
  border: none;
  background: none;
  color: var(--accent);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  padding: var(--space-xs) var(--space-s);
  min-width: 44px;
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}

.gate-error {
  color: var(--accent);
  font-size: var(--text-xs);
  margin-top: var(--space-xs);
  height: 1em;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.gate-error.show {
  opacity: 1;
}

.gate-note {
  margin-top: var(--space-m);
  font-size: var(--text-2xs);
  color: var(--ink-soft);
  opacity: 0.7;
}

/* ---------- Case study detail ---------- */

.cs-content {
  display: none;
}

.cs-content.unlocked {
  display: block;
  animation: fadeUp 0.5s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.cs-header {
  padding: var(--space-xl) 0 var(--space-l);
}

.cs-header .kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-s);
  display: block;
}

.cs-header h1 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-4xl);
  line-height: 1.1;
  margin: 0 0 var(--space-m);
  max-width: 780px;
}

.cs-header .dek {
  font-size: var(--text-m);
  color: var(--ink-soft);
  max-width: 620px;
  margin-bottom: var(--space-m);
  line-height: 1.6;
}

.meta-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-s) var(--space-m);
}

@media (min-width: 600px) {
  .meta-strip {
    display: flex;
    gap: var(--space-l);
    flex-wrap: wrap;
  }
}

.meta-strip div {
  font-size: var(--text-xs);
}

.meta-strip .label {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  font-size: var(--text-2xs);
  margin-bottom: var(--space-3xs);
}

.hero-frame {
  margin: var(--space-l) 0;
  aspect-ratio: 16/9.5;
  background: linear-gradient(135deg, #d9cdb8, #b9a988);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(23,20,15,0.4);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cs-section {
  padding: var(--space-l) 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-s);
}

@media (min-width: 700px) {
  .cs-section {
    grid-template-columns: clamp(140px, 18vw, 200px) 1fr;
    gap: var(--space-l);
  }
}

.cs-section .s-label {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-l);
  color: var(--accent);
}

.cs-section .s-body {
  max-width: 640px;
}

.cs-section .s-body p {
  color: var(--ink-soft);
  font-size: var(--text-base);
  margin-bottom: var(--space-s);
  line-height: 1.7;
}

.artifact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-s);
  margin-top: var(--space-m);
}

@media (min-width: 500px) {
  .artifact-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-m);
  }
}

.artifact-frame {
  aspect-ratio: 4/3;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  font-size: var(--text-2xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: zoom-in;
  transition: transform 0.25s ease;
}

.artifact-frame:hover {
  transform: scale(1.015);
}

.cs-nextprev {
  padding: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
}

@media (min-width: 480px) {
  .cs-nextprev {
    flex-direction: row;
    justify-content: space-between;
  }
}

.cs-nextprev a {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-l);
}

.cs-nextprev a:hover {
  color: var(--accent);
}

.cs-nextprev .small {
  display: block;
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-2xs);
}

/* ---------- Teaser pages ---------- */

.teaser {
  min-height: 62vh;
  min-height: 62svh;
  display: flex;
  align-items: center;
  padding: var(--space-l) 0;
}

.teaser-inner {
  max-width: 640px;
}

.teaser .kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-s);
  display: block;
}

.teaser h1 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-3xl);
  margin: 0 0 var(--space-s);
  line-height: 1.2;
}

.teaser p {
  color: var(--ink-soft);
  font-size: var(--text-m);
  line-height: 1.65;
}

.teaser .back {
  display: inline-block;
  margin-top: var(--space-m);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------- Artist page ---------- */

.art-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: var(--space-l) 0 var(--space-2xl);
}

@media (min-width: 800px) {
  .art-layout {
    grid-template-columns: clamp(80px, 10vw, 120px) 1fr;
    gap: var(--space-xs);
  }
}

.art-years {
  position: sticky;
  top: var(--header-h);
  display: flex;
  gap: var(--space-s);
  overflow-x: auto;
  background: var(--paper);
  padding: var(--space-xs) 0 var(--space-s);
  margin-bottom: var(--space-s);
  border-bottom: 1px solid var(--line);
  z-index: 20;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.art-years::-webkit-scrollbar {
  display: none;
}

@media (min-width: 800px) {
  .art-years {
    flex-direction: column;
    gap: 0;
    overflow-x: visible;
    top: calc(var(--header-h) + var(--space-m));
    align-self: start;
    height: fit-content;
    border-bottom: none;
    padding: 0;
    margin-bottom: 0;
  }
}

.art-years .yr-link {
  display: block;
  background: none;
  border: none;
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-l);
  color: var(--ink-soft);
  padding: var(--space-2xs) 0;
  cursor: pointer;
  text-align: left;
  opacity: 0.45;
  transition: color 0.25s ease, padding-left 0.25s ease, opacity 0.25s ease;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.art-years .yr-link.active {
  color: var(--accent);
  opacity: 1;
}

@media (min-width: 800px) {
  .art-years .yr-link.active {
    padding-left: var(--space-xs);
  }
}

/* Drag-to-scroll */
.art-scroll {
  cursor: grab;
  user-select: none;
}

.art-scroll.dragging {
  cursor: grabbing;
}

.art-scroll.dragging * {
  pointer-events: none;
}

.art-year-section {
  padding-bottom: var(--space-xl);
  scroll-margin-top: calc(var(--header-h) + var(--space-xl));
}

@media (min-width: 800px) {
  .art-year-section {
    scroll-margin-top: calc(var(--header-h) + var(--space-m));
  }
}

.art-year-section:last-of-type {
  padding-bottom: var(--space-xs);
}

.art-year-section .year-label {
  font-size: var(--text-2xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-m);
  display: block;
}

.art-pieces {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.art-piece figure {
  margin: 0;
}

.art-frame {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #ddd3bd, #b9a879);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(23, 20, 15, 0.4);
  font-size: var(--text-2xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-s);
  cursor: zoom-in;
  transition: transform 0.25s ease;
}

.art-frame:hover {
  transform: scale(1.008);
}

.art-piece figcaption strong {
  display: block;
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-m);
  color: var(--ink);
  margin-bottom: var(--space-3xs);
}

.art-piece figcaption span {
  font-size: var(--text-s);
  color: var(--ink-soft);
}

/* Artist CV section */
.artist-cv {
  padding: var(--space-s) 0 var(--space-m);
}

.cv-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-m);
  align-items: start;
}

@media (min-width: 700px) {
  .cv-columns {
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-l);
  }
}

.cv-col h2,
.cv-col h3 {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0;
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.cv-list {
  list-style: none;
}

.cv-list li {
  font-size: var(--text-s);
  color: var(--ink-soft);
  line-height: 1.35;
}

.cv-year {
  display: inline-block;
  min-width: 50px;
  font-weight: 500;
  color: var(--ink);
  margin-right: var(--space-xs);
}

.cv-list-plain .cv-year {
  display: none;
}

.cv-list-plain li {
  padding-left: var(--space-s);
  position: relative;
  line-height: 1.35;
}

.cv-list-plain li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.cv-list-plain a {
  color: var(--ink-soft);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 2px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.cv-list-plain a:hover {
  color: var(--green);
  text-decoration-color: var(--green);
}

/* Expanded CV year groups */
.cv-year-group {
  padding: 4px 0;
}

.cv-year-group + .cv-year-group {
  border-top: 1px solid var(--line);
  margin-top: 4px;
  padding-top: 6px;
}

.cv-year-header {
  display: block;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0;
  font-size: var(--text-s);
  line-height: 1.4;
}

.cv-list-expanded {
  list-style: none;
}

.cv-list-expanded li {
  font-size: var(--text-s);
  color: var(--ink-soft);
  padding-left: var(--space-s);
  position: relative;
  line-height: 1.35;
}

.cv-list-expanded li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

.cv-list-expanded a {
  color: var(--ink-soft);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 2px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.cv-list-expanded a:hover {
  color: var(--green);
  text-decoration-color: var(--green);
}

/* Art card with image and hover */
.art-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.art-frame-img {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  margin-bottom: var(--space-s);
  cursor: pointer;
  pointer-events: auto;
}

.art-frame-img.art-poster {
  max-width: 480px;
}

.art-video {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  margin-bottom: var(--space-s);
  cursor: pointer;
  pointer-events: auto;
}

.art-video video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 2px;
  pointer-events: none;
}

/* Scattered art grid */
.art-grid-scatter {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl) var(--space-l);
  padding: var(--space-m) 0 var(--space-2xl);
  align-items: start;
}

@media (max-width: 600px) {
  .art-grid-scatter {
    grid-template-columns: 1fr;
  }
}

.art-item {
  max-width: 100%;
}

/* Stagger items for visual interest */
.art-item:nth-child(even) {
  margin-top: var(--space-xl);
}

.art-item:nth-child(3n) {
  margin-top: var(--space-2xl);
}

.art-item figure {
  margin: 0;
}

.art-item a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.art-item .art-frame-img,
.art-item .art-video {
  width: 100%;
  margin-bottom: var(--space-s);
}

.art-item .art-frame-img img,
.art-item .art-video video {
  width: 100%;
  height: auto;
  border-radius: 2px;
  pointer-events: none;
}


.art-item figcaption {
  font-size: var(--text-s);
}

.art-item figcaption strong {
  display: block;
  color: var(--ink);
  margin-bottom: 2px;
}

.art-item figcaption span {
  color: var(--ink-soft);
  font-size: var(--text-xs);
}

.art-frame-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s ease;
  pointer-events: none;
}

.art-hover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.art-hover-text {
  color: #fff;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-s);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.art-card-link:hover .art-frame-img img {
  transform: scale(1.03);
}

.art-card-link:hover .art-hover-overlay {
  opacity: 1;
}

/* ---------- Touch and accessibility ---------- */

/* Visually hidden but accessible to screen readers */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: var(--space-xs) var(--space-m);
  text-decoration: none;
  font-size: var(--text-s);
  font-weight: 500;
  border-radius: 0 0 4px 4px;
  z-index: 9999;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (hover: none) {
  .cs-card:hover,
  .doors-list a:hover {
    padding-left: 0;
  }

  .art-frame:hover,
  .artifact-frame:hover {
    transform: none;
  }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Client logos ---------- */

.client-logos {
  padding: var(--space-l) 0;
  border-top: 1px solid var(--line);
}

.logos-intro {
  font-size: var(--text-s);
  color: var(--ink-soft);
  margin-bottom: var(--space-m);
}

.logo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-l) var(--space-xl);
  align-items: center;
  justify-content: center;
}

.client-logo {
  height: clamp(64px, 10vw, 96px);
  width: auto;
  max-width: 100%;
  object-fit: contain;
  opacity: 0.7;
  filter: grayscale(100%);
  transition: opacity 0.25s ease, filter 0.25s ease;
}

.client-logo:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* ---------- Case study detail page ---------- */

.cs-detail-hero {
  padding: var(--space-xl) 0 var(--space-s);
  max-width: 850px;
  margin-left: clamp(0px, 10vw, 130px);
  margin-right: auto;
}

.cs-detail-hero .kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-s);
  display: block;
}

.cs-detail-hero h1 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 700;
  font-size: var(--text-4xl);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-m);
}

.cs-detail-hero .lede {
  font-size: 21px;
  color: var(--ink);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.cs-hero-metrics {
  list-style: none;
  padding: 0;
  margin: var(--space-m) 0 var(--space-l);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-m);
}

.cs-hero-metrics li {
  font-size: var(--text-s);
  color: var(--ink-soft);
}

.cs-hero-metrics li strong {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  color: var(--ink);
  display: block;
  line-height: 1.1;
  margin-bottom: var(--space-3xs);
  letter-spacing: -0.02em;
}

.cs-hero-metrics li strong span {
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: 0;
}

@media (max-width: 600px) {
  .cs-hero-metrics {
    grid-template-columns: 1fr;
  }
}

.cs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-m) var(--space-xl);
  padding-top: var(--space-m);
  border-top: 1px solid var(--line);
}

.cs-meta-item .label {
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-3xs);
}

.cs-meta-item .value {
  font-size: var(--text-s);
}

/* Case study page background */
body.case-study {
  background: #f8f7fc;
}

body.case-study main {
  padding-bottom: 0;
  margin-bottom: 0;
}

body.case-study .cs-explore--brutalist {
  margin-bottom: 0;
}

body.case-study .site-header {
  background: #fff;
}

/* Smooth scrolling for case study sections */
html:has(body.case-study) {
  scroll-behavior: smooth;
}

body.case-study .cs-detail-hero,
body.case-study .cs-brutalist-info,
body.case-study .cs-section-block,
body.case-study .cs-hero-image,
body.case-study .cs-image-full,
body.case-study .cs-image-grid {
  scroll-margin-top: 80px;
}

/* Brutalist Info Block */
.cs-brutalist-info {
  border: 2px solid var(--ink);
  margin: var(--space-s) clamp(-100px, -8vw, 0px);
  padding: 0;
}

.brutalist-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 2px solid var(--ink);
}

@media (max-width: 680px) {
  .brutalist-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.brutalist-cell {
  padding: var(--space-s) var(--space-m);
  border-right: 2px solid var(--ink);
}

.brutalist-cell:last-child {
  border-right: none;
}

@media (max-width: 680px) {
  .brutalist-cell:nth-child(2) {
    border-right: none;
  }
  .brutalist-cell:nth-child(1),
  .brutalist-cell:nth-child(2) {
    border-bottom: 2px solid var(--ink);
  }
}

.brutalist-label {
  font-size: var(--text-2xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: var(--space-3xs);
}

.brutalist-value {
  font-size: var(--text-s);
  font-weight: 500;
  color: var(--ink);
}

.brutalist-org {
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: var(--space-3xs);
}

/* Experience grid on designer page */
.experience-grid {
  margin: var(--space-m) 0;
}

.experience-grid .brutalist-grid {
  border-bottom: none;
}

.experience-grid .brutalist-grid:first-child {
  border-bottom: 2px solid var(--ink);
}

.brutalist-content {
  padding: var(--space-m);
  border-bottom: 2px solid var(--ink);
}

.brutalist-content p {
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--ink-soft);
  margin-top: var(--space-xs);
  max-width: none;
}

.brutalist-outcomes {
  padding: var(--space-m);
}

.brutalist-outcomes ul {
  list-style: none;
  margin-top: var(--space-xs);
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
}

.brutalist-outcomes li {
  display: flex;
  gap: var(--space-s);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--ink-soft);
}

.outcome-marker {
  font-size: var(--text-2xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink);
  flex-shrink: 0;
  padding-top: 0.25em;
}

.cs-hero-image {
  margin: var(--space-s) 0 var(--space-m);
}

.cs-hero-image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
}

/* IPG hero - show top of phone */
body.case-study-ipg .cs-hero-image img {
  object-position: top;
}

.cs-section-block {
  padding: var(--space-s) 0;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
}

.cs-section-block h2 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: 28px;
  color: var(--ink);
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

/* Major section headers - centered, Scandinavian spacing */
.cs-section-block h2.cs-major-heading {
  font-size: 40px;
  color: var(--ink);
  text-align: center;
  letter-spacing: -0.02em;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
}

.cs-section-block h3 {
  font-size: 24px;
  color: var(--ink);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.cs-section-block p {
  font-size: 21px;
  color: var(--ink);
  line-height: 1.75;
  margin-bottom: 1.5rem;
}

.cs-section-block ul {
  list-style: none;
}

.cs-section-block ul li {
  position: relative;
  padding-left: var(--space-m);
  margin-bottom: 1rem;
  font-size: 21px;
  color: var(--ink);
  line-height: 1.7;
}

.cs-section-block ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.cs-change-list {
  margin: var(--space-m) 0 var(--space-l);
  padding: var(--space-m);
  background: rgba(0, 0, 0, 0.02);
  border-radius: 8px;
}

.cs-change-list li {
  font-size: 21px;
  color: var(--ink);
  line-height: 1.7;
  margin-bottom: var(--space-s);
}

.cs-change-list li:last-child {
  margin-bottom: 0;
}

/* PDF embed for case studies */
.cs-pdf-embed {
  width: 100%;
  height: 600px;
  margin: var(--space-m) 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(88, 101, 242, 0.12);
}

.cs-pdf-embed iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.cs-download-link {
  display: inline-block;
  padding: var(--space-s) var(--space-m);
  background: var(--ink);
  color: #fff;
  font-size: var(--text-s);
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s ease;
}

.cs-download-link:hover {
  background: var(--accent);
}

/* Split layout with text on left, image on right */
.cs-split-reverse {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
  margin: var(--space-l) 0;
}

@media (max-width: 900px) {
  .cs-split-reverse {
    grid-template-columns: 1fr;
  }
}

.cs-split-reverse .cs-split-text h3 {
  font-size: var(--text-l);
  margin-bottom: var(--space-m);
}

.cs-split-reverse .cs-change-list {
  background: transparent;
  padding: 0;
  margin: 0;
}

/* Browser frame for dashboard previews */
.cs-browser-frame {
  background: #f5f5f5;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* Only hide browser chrome inside cs-browser-frame */
.cs-browser-frame .browser-chrome {
  display: none;
}

.browser-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ccc;
}

.browser-dot:nth-child(1) { background: #ff5f57; }
.browser-dot:nth-child(2) { background: #ffbd2e; }
.browser-dot:nth-child(3) { background: #28ca41; }

.browser-viewport {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  cursor: grab;
  border-radius: 8px;
}

.browser-viewport:active {
  cursor: grabbing;
}

.browser-viewport .scroll-img-drag {
  width: 100%;
  animation: scrollPreviewSlow 25s ease-in-out infinite;
  animation-play-state: running;
}

.browser-viewport iframe {
  width: 100%;
  height: 300%;
  border: none;
  pointer-events: none;
  animation: scrollIframe 20s ease-in-out infinite;
}

@keyframes scrollIframe {
  0%, 10% { transform: translateY(0); }
  45%, 55% { transform: translateY(-66%); }
  90%, 100% { transform: translateY(0); }
}

.browser-viewport.is-dragging .scroll-img-drag {
  animation-play-state: paused;
}

@keyframes scrollPreviewSlow {
  0%, 8% { transform: translateY(0); }
  46%, 54% { transform: translateY(-55%); }
  92%, 100% { transform: translateY(0); }
}

/* Key Flows - horizontal screen sequences */
.cs-flow-section {
  margin: var(--space-l) 0;
}

.cs-flow-section h3 {
  font-size: 24px;
  color: var(--ink);
  margin-bottom: 1rem;
}

.cs-flow-rationale {
  font-size: 18px;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: var(--space-l);
  max-width: 660px;
}

.cs-flow-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-s);
  margin: var(--space-m) 0;
  overflow-x: auto;
  padding-bottom: var(--space-s);
}

.cs-flow-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex: 1 1 280px;
  min-width: 280px;
  max-width: 400px;
}

/* Flow arrows between items */
.cs-flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  margin-top: 160px;
  color: var(--accent);
  font-size: 28px;
  font-weight: 300;
  opacity: 0.5;
  user-select: none;
}

@media (max-width: 768px) {
  .cs-flow-arrow {
    display: none;
  }

  .cs-flow-row {
    gap: var(--space-m);
  }
}

.cs-flow-frame {
  background: #f8f8f8;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.cs-flow-frame img {
  width: 100%;
  display: block;
  transition: transform 0.3s ease;
}

.cs-flow-frame:hover img {
  transform: scale(1.02);
}

.cs-flow-item .cs-whisper {
  text-align: center;
  padding: 0 var(--space-xs);
}

/* Case study lightbox */
.cs-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.cs-lightbox.active {
  opacity: 1;
  visibility: visible;
}

.cs-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.cs-lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.cs-lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.cs-lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.cs-lightbox-prev,
.cs-lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.25);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  color: #fff;
  font-size: 32px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease;
  z-index: 10;
}

.cs-lightbox-prev:hover,
.cs-lightbox-next:hover {
  background: rgba(255, 255, 255, 0.4);
  border-color: rgba(255, 255, 255, 0.6);
}

.cs-lightbox-prev {
  left: 24px;
}

.cs-lightbox-next {
  right: 24px;
}

.cs-lightbox-caption {
  color: #fff;
  font-size: var(--text-s);
  text-align: center;
  max-width: 70ch;
  margin: var(--space-m) auto 0;
  opacity: 0.85;
  line-height: 1.5;
}

.cs-lightbox-counter {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-xs);
  text-align: center;
  margin-top: var(--space-xs);
}

.cs-image-full {
  margin: var(--space-m) 0;
}

.cs-image-full img {
  width: 100%;
  border-radius: 2px;
}

/* White banner treatment for all case study images */
body.case-study .cs-image-full,
body.case-study .cs-hero-image,
body.case-study .cs-image-grid {
  background: #fff;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  padding: var(--space-m) calc(50vw - 50%);
}

body.case-study .cs-image-full img,
body.case-study .cs-hero-image img,
body.case-study .cs-image-grid img {
  box-shadow: 0 8px 32px rgba(88, 101, 242, 0.12);
  border-radius: 4px;
}

/* Split section: text left, scrolling image right */
.cs-section-split {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
  padding: var(--space-l) 0;
  max-width: 1060px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 900px) {
  .cs-section-split {
    grid-template-columns: 1fr;
  }
}

.cs-split-text h2 {
  font-family: 'Helvetica', sans-serif;
  font-weight: 400;
  font-size: var(--text-xl);
  color: var(--accent);
  margin-bottom: var(--space-m);
}

.cs-split-text p {
  font-size: 21px;
  color: var(--ink);
  line-height: 1.75;
  margin-bottom: var(--space-s);
}

.cs-split-image {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.cs-scroll-preview {
  height: 580px;
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 8px 32px rgba(88, 101, 242, 0.12);
  position: relative;
}

.cs-scroll-preview img {
  width: 100%;
  animation: scrollPreview 20s ease-in-out infinite;
}

@keyframes scrollPreview {
  0%, 10% { transform: translateY(0); }
  45%, 55% { transform: translateY(calc(-100% + 580px)); }
  90%, 100% { transform: translateY(0); }
}

.cs-whisper {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.5;
  text-align: center;
}

.cs-image-full figcaption {
  font-size: 15px;
  color: var(--ink-soft);
  margin-top: var(--space-xs);
  text-align: center;
}

/* Embedded content (Google Slides, etc.) */
.cs-embed-full {
  margin: var(--space-xl) calc(-50vw + 50%);
  width: 100vw;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-m);
  box-sizing: border-box;
}

body.case-study .cs-embed-full {
  background: transparent;
}

.cs-embed-wrapper {
  position: relative;
  width: 100%;
  height: 85vh;
  min-height: 700px;
  max-height: 900px;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(88, 101, 242, 0.12);
}

.cs-embed-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.cs-embed-full figcaption {
  font-size: var(--text-xs);
  color: var(--ink-soft);
  margin-top: var(--space-xs);
  text-align: center;
}

/* Showcase scroll - auto-scrolling tall image */
.cs-showcase-scroll .showcase-viewport {
  height: 500px;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--paper-deep);
  position: relative;
}

.cs-showcase-scroll .showcase-img {
  width: 100%;
  height: auto;
  display: block;
  animation: showcase-scroll 20s ease-in-out infinite;
}

@keyframes showcase-scroll {
  0% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(calc(-100% + 500px));
  }
  50% {
    transform: translateY(calc(-100% + 500px));
  }
  90% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cs-showcase-scroll .showcase-img {
    animation: none;
  }
}

.cs-image-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-m);
  margin: var(--space-l) 0;
}

@media (min-width: 600px) {
  .cs-image-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cs-image-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.cs-image-grid img {
  width: 100%;
  border-radius: 2px;
}

.cs-quote {
  padding: var(--space-l) 0;
}

.cs-quote blockquote {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-2xl);
  line-height: 1.35;
  max-width: 800px;
  margin: 0 0 var(--space-m);
}

.cs-quote cite {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-s);
  color: var(--ink-soft);
}

.cs-results {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-s);
  margin: var(--space-l) 0;
}

@media (min-width: 500px) {
  .cs-results {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .cs-results {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cs-result-card {
  position: relative;
  padding: var(--space-l) var(--space-m);
  background: linear-gradient(135deg, var(--paper-deep) 0%, #fff 100%);
  border-radius: 8px;
  text-align: left;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cs-result-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
  opacity: 0.6;
  transition: opacity 0.2s ease;
}

.cs-result-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(88, 101, 242, 0.12);
}

.cs-result-card:hover::before {
  opacity: 1;
}

.cs-result-card .stat {
  font-family: 'Helvetica', sans-serif;
  font-size: var(--text-4xl);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.cs-result-card .desc {
  font-size: 16px;
  color: var(--ink);
  line-height: 1.5;
}

.cs-back-link {
  padding: var(--space-xl) 0;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.cs-back-link a {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cs-back-link svg {
  transform: rotate(180deg);
}

/* ---------- Case Study Explore Strip ---------- */

.cs-explore {
  padding: var(--space-2xl) 0 var(--space-xl);
  margin-top: var(--space-xl);
}

.cs-explore--brutalist {
  background: #10B981;
  color: #fff;
  margin: var(--space-xl) 0 0;
  padding: var(--space-xl) 0 0;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.cs-explore--brutalist .cs-explore-label {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  opacity: 1;
  margin-bottom: var(--space-l);
  display: block;
  padding: 0 max(var(--wrap-padding), calc((100vw - var(--max-w)) / 2));
}

.cs-explore--brutalist .cs-explore-strip {
  max-width: none;
  margin: 0;
  padding: 0;
}

.cs-explore--brutalist .cs-explore-item {
  background: transparent;
  box-shadow: none;
  padding: var(--space-l) max(var(--wrap-padding), calc((100vw - var(--max-w)) / 2));
  border-bottom: none;
  border-radius: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
  transition: background-color 0.2s ease;
  cursor: pointer;
  display: block;
}

.cs-explore--brutalist .cs-explore-item:hover {
  background: var(--accent);
  box-shadow: none;
  transform: none;
}


.cs-explore--brutalist .cs-explore-thumb {
  display: none;
}

.cs-explore--brutalist .cs-explore-title,
.cs-explore--brutalist .cs-explore-excerpt {
  mix-blend-mode: multiply;
}

.cs-explore--brutalist .cs-explore-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-s);
}

.cs-explore--brutalist .cs-explore-excerpt {
  font-size: 20px;
  color: var(--ink);
  line-height: 1.65;
  max-width: 70ch;
}

.cs-explore--brutalist .cs-explore-title {
  color: var(--ink);
}

.cs-explore--brutalist .cs-explore-item:hover .cs-explore-title {
  color: var(--ink);
}

.cs-explore--brutalist .cs-explore-meta {
  color: rgba(255, 255, 255, 0.7);
}

.cs-explore--brutalist .cs-explore-back a {
  color: rgba(255, 255, 255, 0.7);
}

.cs-explore--brutalist .cs-explore-back a:hover {
  color: #fff;
}

.cs-explore-label {
  font-size: var(--text-2xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-m);
  display: block;
}

.cs-explore-strip {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cs-explore-item {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: var(--space-m);
  padding: var(--space-s);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 4px 20px rgba(88, 101, 242, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cs-explore-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(88, 101, 242, 0.18);
}

.cs-explore-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.cs-explore-item[aria-current="page"] {
  pointer-events: none;
  opacity: 0.4;
}

.cs-explore-thumb {
  flex: 0 0 auto;
  width: clamp(80px, 15vw, 120px);
  aspect-ratio: 16/10;
  border-radius: 4px;
  overflow: hidden;
  background: var(--paper-deep);
}

.cs-explore-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.cs-explore-item:hover .cs-explore-thumb img {
  transform: scale(1.05);
}

.cs-explore-text {
  flex: 1;
  min-width: 0;
}

.cs-explore-title {
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1.3;
  margin: 0 0 var(--space-3xs);
  transition: color 0.2s ease;
}

.cs-explore-item:hover .cs-explore-title {
  color: var(--accent);
}

.cs-explore-meta {
  font-size: var(--text-2xs);
  color: var(--ink-soft);
}

/* Back link below the strip */
.cs-explore-back {
  margin-top: var(--space-l);
  text-align: center;
}

.cs-explore-back a {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s ease;
}

.cs-explore-back a:hover {
  color: var(--accent);
}

.cs-explore-back svg {
  transform: rotate(180deg);
}

/* Brutalist Artifacts Section */
.cs-artifacts {
  background: var(--accent);
  color: #fff;
  margin: var(--space-xl) calc(-1 * var(--wrap-padding));
  padding: var(--space-xl) var(--wrap-padding);
}

.cs-artifacts-header {
  margin-bottom: var(--space-l);
}

.cs-artifacts-label {
  font-size: var(--text-2xs);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: var(--space-xs);
  display: block;
}

.cs-artifacts-title {
  font-size: clamp(3rem, 2rem + 8vw, 8rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.cs-artifacts-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-m);
}

.cs-artifacts-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.cs-artifacts-item img {
  width: 100%;
  height: auto;
  display: block;
}

.cs-artifacts-caption {
  padding: var(--space-s);
  font-size: var(--text-s);
  opacity: 0.85;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .cs-explore-item {
    transition: none;
  }
  .cs-explore-thumb img {
    transition: none;
  }
}

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Ensure interactive elements have clear focus indicators */
.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

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

.cs-card:focus-visible,
.cs-featured-card:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.art-frame-img:focus-visible,
.art-video:focus-visible,
.artifact-frame:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.footer-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

/* ---------- Art popup ---------- */

.art-popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-l);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  cursor: pointer;
}

.art-popup-overlay.active {
  opacity: 1;
  visibility: visible;
}

.art-popup-content {
  max-width: 90vw;
  max-height: 85vh;
  transform: scale(0.95);
  transition: transform 0.3s ease;
  cursor: default;
}

.art-popup-overlay.active .art-popup-content {
  transform: scale(1);
}

.art-popup-content img,
.art-popup-content video {
  max-width: 100%;
  max-height: 85vh;
  width: auto;
  height: auto;
  border-radius: 3px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.art-popup-close {
  position: fixed;
  top: var(--space-m);
  right: var(--space-m);
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

.art-popup-close:hover {
  opacity: 1;
}

.art-popup-close::before,
.art-popup-close::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 1.5px;
  background: var(--ink);
}

.art-popup-close::before {
  transform: rotate(45deg);
}

.art-popup-close::after {
  transform: rotate(-45deg);
}

/* Popup navigation arrows */
.art-popup-nav {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  z-index: 1001;
  opacity: 0.7;
  transition: opacity 0.2s ease, background 0.2s ease;
}

.art-popup-nav:hover {
  opacity: 1;
  background: #fff;
}

.art-popup-prev {
  left: var(--space-m);
}

.art-popup-next {
  right: var(--space-m);
}

.art-popup-nav::before {
  content: '';
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.art-popup-prev::before {
  left: 50%;
  transform: translate(-25%, -50%) rotate(45deg);
}

.art-popup-next::before {
  right: 50%;
  transform: translate(25%, -50%) rotate(-135deg);
}

/* ============================================
   Password Gate — Protected Case Studies
   ============================================ */

/* Gate section - clean inline design */
.cs-gate-section {
  padding: var(--space-s) 0 var(--space-xl);
}

.cs-gate-section.unlocked {
  display: none;
}

.cs-gate-box {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  margin-bottom: var(--space-m);
}

.cs-gate-label {
  font-size: var(--text-l);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--ink-soft);
  margin-bottom: var(--space-xs);
}

.cs-gate-link {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cs-gate-link:hover {
  color: var(--green);
}

.cs-gate-form-inline {
  display: flex;
  align-items: center;
  gap: 0;
  max-width: 600px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: var(--space-xs);
}

.cs-gate-form-inline input {
  flex: 1;
  padding: var(--space-xs) 0;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
  outline: none;
}

.cs-gate-form-inline input::placeholder {
  color: var(--ink-soft);
  opacity: 0.35;
}

.cs-gate-form-inline button {
  padding: var(--space-xs) var(--space-s);
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: var(--text-2xl);
  color: var(--ink);
  opacity: 0.35;
  transition: opacity 0.15s ease;
}

.cs-gate-form-inline button:hover {
  opacity: 1;
}

.cs-gate-error {
  font-size: var(--text-s);
  color: #c53030;
  min-height: 1.4em;
  margin-top: var(--space-2xs);
}

/* Placeholder grid - visible before unlock (matches .cs-grid) */
.cs-grid-placeholder {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-l);
  padding: var(--space-xl) 0 var(--space-2xl);
}

@media (min-width: 700px) {
  .cs-grid-placeholder {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-m);
  }
}

.cs-grid-placeholder .cs-card-placeholder {
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.cs-grid-placeholder .cs-card-placeholder:hover {
  opacity: 1;
}

.cs-card-placeholder-img {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: #f5f5f5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cs-card-placeholder-img .lock-icon {
  width: 64px;
  height: 64px;
  color: #ccc;
  stroke-width: 1;
}

.cs-card-placeholder .cs-card-title {
  color: var(--ink-soft);
  opacity: 0.5;
}

.cs-card-placeholder .cs-card-tags li {
  background: var(--paper-deep);
  color: var(--ink-soft);
}

/* Hide placeholders when unlocked */
.cs-gate-section.unlocked .cs-grid-placeholder {
  display: none;
}

/* Hidden grid - completely invisible until unlocked */
.cs-grid-hidden {
  display: none !important;
  visibility: hidden;
  height: 0;
  overflow: hidden;
}

.cs-grid-hidden.unlocked {
  display: grid !important;
  visibility: visible;
  height: auto;
  overflow: visible;
}

/* Shake animation for wrong password */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.cs-gate-form-inline.shake {
  animation: shake 0.35s ease;
}

.cs-gate-form-inline.shake input {
  color: #c53030;
}

/* Case study page gate - full page overlay */
.cs-page-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.cs-page-gate.unlocked {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.cs-page-gate .cs-gate-box {
  text-align: center;
  align-items: center;
}

.cs-page-gate .cs-gate-form-inline {
  width: 100%;
  max-width: 400px;
  justify-content: center;
}

/* ---------- Download Cards ---------- */

.cs-downloads {
  max-width: 720px;
  margin: var(--space-xl) auto;
  padding: 0 var(--wrap-padding);
}

.cs-downloads h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.cs-downloads > p {
  font-size: var(--text-base);
  color: var(--ink-soft);
  margin-bottom: var(--space-l);
  line-height: 1.6;
}

.cs-download-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-m);
}

@media (min-width: 600px) {
  .cs-download-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.cs-download-card {
  display: block;
  background: var(--paper);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06), 0 0 0 1px var(--line);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cs-download-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1), 0 0 0 1px var(--line);
}

.cs-download-preview {
  position: relative;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cs-download-number {
  font-family: 'Helvetica', sans-serif;
  font-size: clamp(3rem, 5vw, 4rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.25);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  letter-spacing: -0.02em;
}

.cs-download-icon {
  position: relative;
  z-index: 1;
  color: rgba(255, 255, 255, 0.9);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.cs-download-card:hover .cs-download-icon {
  opacity: 1;
  transform: translateY(0);
}

.cs-download-card:hover .cs-download-number {
  color: rgba(255, 255, 255, 0.15);
}

.cs-download-info {
  padding: var(--space-m);
}

.cs-download-info h3 {
  font-size: var(--text-m);
  font-weight: 700;
  margin-bottom: var(--space-2xs);
  color: var(--ink);
  letter-spacing: -0.01em;
}

.cs-download-info p {
  font-size: var(--text-s);
  color: var(--ink-soft);
  line-height: 1.5;
  margin-bottom: var(--space-xs);
}

.cs-download-meta {
  font-size: var(--text-xs);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

/* ---------- PDF Library Viewer ---------- */

.cs-library {
  max-width: 900px;
  margin: var(--space-xl) auto;
  padding: 0 var(--wrap-padding);
}

.cs-library h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.cs-library > p {
  font-size: var(--text-base);
  color: var(--ink-soft);
  margin-bottom: var(--space-l);
  line-height: 1.6;
}

.cs-library-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-m);
}

.cs-library-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-xs) var(--space-s);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  font-size: var(--text-s);
}

.cs-library-tab:hover {
  border-color: var(--tab-color, var(--ink));
  background: color-mix(in srgb, var(--tab-color, var(--ink)) 8%, var(--paper));
}

.cs-library-tab.active {
  background: var(--tab-color, var(--ink));
  border-color: var(--tab-color, var(--ink));
  color: #fff;
}

.cs-library-tab .tab-number {
  font-weight: 700;
  font-size: var(--text-xs);
  opacity: 0.7;
}

.cs-library-tab.active .tab-number {
  opacity: 1;
}

.cs-library-tab .tab-title {
  font-weight: 500;
}

@media (max-width: 600px) {
  .cs-library-tab .tab-title {
    display: none;
  }

  .cs-library-tab {
    padding: var(--space-s);
    min-width: 48px;
    justify-content: center;
  }

  .cs-library-tab .tab-number {
    font-size: var(--text-m);
    opacity: 1;
  }
}

.cs-library-viewer {
  background: #f4f4f4;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.cs-library-frame {
  aspect-ratio: 8.5 / 11;
  max-height: 80vh;
  background: #e0e0e0;
}

.cs-library-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.cs-library-download {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--space-s);
  background: var(--paper);
  border-top: 1px solid var(--line);
  font-size: var(--text-s);
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.cs-library-download:hover {
  background: var(--ink);
  color: var(--paper);
}

.cs-library-download svg {
  transition: transform 0.2s ease;
}

.cs-library-download:hover svg {
  transform: translateY(2px);
}

/* ============================================
   iOS Touch Target Compliance (44px minimum)
   Per Apple Human Interface Guidelines
   ============================================ */

@media (max-width: 768px) {
  /* Ensure all interactive elements meet 44px minimum */

  /* Navigation links - desktop nav only, mobile nav handled in 640px breakpoint */
  nav.doors:not(.open) a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  
  /* Footer links */
  .footer-link {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) 0;
  }
  
  /* All buttons */
  button,
  [type="button"],
  [type="submit"] {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* Form inputs */
  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="search"],
  textarea,
  select {
    min-height: 44px;
    font-size: 16px; /* Prevents iOS zoom on focus */
  }
  
  /* Card links and buttons */
  .cs-card,
  .cs-featured-card,
  .cs-explore-item {
    min-height: 44px;
  }
  
  /* Tags and chips */
  .cs-card-tags li {
    min-height: 32px;
    padding: var(--space-2xs) var(--space-s);
  }
  
  /* Gallery and image interactions */
  .art-popup-close {
    min-width: 44px;
    min-height: 44px;
    padding: var(--space-xs);
  }
  
  .art-popup-prev,
  .art-popup-next {
    min-width: 44px;
    min-height: 44px;
  }
  
  /* Password gate button */
  .cs-gate-form-inline button {
    min-width: 44px;
    min-height: 44px;
    padding: var(--space-xs);
  }
  
  /* Library tabs */
  .cs-library-tab {
    min-height: 44px;
    padding: var(--space-s);
  }
  
  /* Download links */
  .cs-download-card {
    min-height: 44px;
  }
  
  /* Year filters on art page */
  .art-year-nav button {
    min-height: 44px;
    min-width: 44px;
  }
  
  /* Explore navigation */
  .cs-explore-back a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) 0;
  }
}

/* Smooth momentum scrolling for iOS */
@supports (-webkit-overflow-scrolling: touch) {
  .browser-viewport,
  .cs-library-frame,
  .art-popup-content {
    -webkit-overflow-scrolling: touch;
  }
}

/* Safe area insets for notched devices */
@supports (padding: env(safe-area-inset-bottom)) {
  .site-footer {
    padding-bottom: calc(var(--space-2xl) + env(safe-area-inset-bottom));
  }
  
  .art-popup {
    padding-bottom: env(safe-area-inset-bottom);
  }
}