/* ==========================================================================
   Design tokens — brutalist / monochrome
   ========================================================================== */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f0f0f0;
  --color-surface: #ffffff;
  --color-text: #0a0a0a;
  --color-text-muted: #656565;
  --color-border: #0a0a0a;
  --color-border-soft: #d6d6d6;
  --color-invert-bg: #0a0a0a;
  --color-invert-text: #ffffff;
  --color-invert-muted: #a6a6a6;
  --color-focus: #0a0a0a;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --container-w: 1120px;
  --radius-sm: 0px;
  --radius-md: 0px;
  --shadow-sm: 4px 4px 0 var(--color-text);
  --shadow-md: 7px 7px 0 var(--color-text);
  --shadow-lg: 10px 10px 0 var(--color-text);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6.5rem;

  /* Motion system — single source of truth for every animated element. */
  --motion-duration-fast: 320ms;
  --motion-duration-base: 560ms;
  --motion-duration-slow: 760ms;

  --motion-delay-xs: 60ms;
  --motion-delay-sm: 100ms;
  --motion-delay-md: 160ms;

  --motion-distance-sm: 8px;
  --motion-distance-md: 16px;
  --motion-distance-lg: 24px;

  --motion-ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (max-width: 720px) {
  :root {
    --motion-duration-fast: 260ms;
    --motion-duration-base: 460ms;
    --motion-duration-slow: 620ms;
    --motion-distance-md: 12px;
    --motion-distance-lg: 16px;
  }
}

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

ul,
ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

h1, h2, h3, h4, p, figure {
  margin: 0;
}

button {
  font-family: inherit;
}

/* ==========================================================================
   Accessibility helpers
   ========================================================================== */
.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-link {
  position: absolute;
  top: -56px;
  left: var(--space-2);
  background: var(--color-text);
  color: var(--color-bg);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  z-index: 200;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: var(--space-2);
}

/* Monochrome, double-ring focus indicator: visible on both light and dark surfaces */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-text);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px var(--color-bg);
}

.hero :is(a, button):focus-visible,
.section--invert :is(a, button):focus-visible {
  outline-color: var(--color-invert-text);
  box-shadow: 0 0 0 5px var(--color-invert-bg);
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.4rem, 1.85rem + 2.4vw, 4.1rem);
  font-weight: 750;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.6rem, 1.35rem + 1vw, 2.3rem);
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

h4 {
  font-size: 0.875rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  font-weight: 600;
}

p {
  color: var(--color-text);
}

.text-muted {
  color: var(--color-text-muted);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: currentColor;
}

.eyebrow::before {
  content: "";
  width: 9px;
  height: 9px;
  background: currentColor;
  flex-shrink: 0;
}

.lede {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 60ch;
}

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section {
  padding-block: var(--space-6);
}

.section--alt {
  background: var(--color-bg-alt);
  border-top: 2px solid var(--color-text);
  border-bottom: 2px solid var(--color-text);
}

.section--invert {
  position: relative;
  background: var(--color-invert-bg);
  color: var(--color-invert-text);
  isolation: isolate;
  overflow: hidden;
}

.section--invert::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.section--invert .lede {
  color: var(--color-invert-muted);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  max-width: 68ch;
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-text);
}

/* Navbar entrance — animates the injected content wrapper, not the empty
   #site-header shell, so it only ever plays once real nav content exists
   (components.js sets .site-header__inner's innerHTML synchronously,
   essentially immediately on load — never gated by scroll or a timer).
   Max displacement is 8px so it reads as an instant presence. */
#site-header .site-header__inner {
  animation: nav-in var(--motion-duration-fast) var(--motion-ease-standard) both;
}

@keyframes nav-in {
  from {
    opacity: 0;
    transform: translateY(calc(var(--motion-distance-sm) * -1));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  #site-header .site-header__inner {
    animation: none;
  }
}

/* Scroll state — added by js/enhance.js once the page scrolls past a
   small threshold. Shrinks the header slightly and adds a translucent
   backdrop now that page content sits behind it. */
#site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#site-header.is-scrolled .site-header__inner {
  padding-block: 0.6rem;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-3);
  transition: padding-block var(--motion-duration-fast) var(--motion-ease-standard);
}

.logo {
  font-weight: 750;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.logo span {
  color: var(--color-text);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav__link {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  font-weight: 500;
  padding: 0.4rem 0.1rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.nav__link:hover {
  color: var(--color-text);
  border-color: var(--color-border-soft);
}

.nav__link[aria-current="page"] {
  color: var(--color-text);
  font-weight: 700;
  border-color: var(--color-text);
}

.nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-text);
  background: var(--color-surface);
  cursor: pointer;
}

.nav__toggle-icon,
.nav__toggle-icon::before,
.nav__toggle-icon::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav__toggle-icon::before {
  top: -6px;
}

.nav__toggle-icon::after {
  top: 6px;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon {
  background: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 2px solid var(--color-text);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease,
    transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
  background: var(--color-text);
  color: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translate(0, 0);
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-text);
  color: var(--color-bg);
}

.hero .btn-primary,
.section--invert .btn-primary {
  background: var(--color-invert-text);
  color: var(--color-invert-bg);
  border-color: var(--color-invert-text);
  box-shadow: 4px 4px 0 var(--color-invert-muted);
}

.hero .btn-primary:hover,
.section--invert .btn-primary:hover {
  box-shadow: 7px 7px 0 var(--color-invert-muted);
}

.hero .btn-secondary,
.section--invert .btn-secondary {
  color: var(--color-invert-text);
  border-color: var(--color-invert-text);
}

.hero .btn-secondary:hover,
.section--invert .btn-secondary:hover {
  background: var(--color-invert-text);
  color: var(--color-invert-bg);
}

.btn-link {
  padding: 0;
  border: none;
  background: none;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-link::after {
  content: "\2192";
  transition: transform 0.15s ease;
}

.btn-link:hover::after {
  transform: translateX(3px);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  background: var(--color-invert-bg);
  color: var(--color-invert-text);
  padding-block: var(--space-7) 0;
  border-bottom: 2px solid var(--color-text);
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.hero__monogram {
  position: absolute;
  right: -0.05em;
  top: -0.12em;
  z-index: -1;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: min(34vw, 22rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px #232323;
  user-select: none;
  pointer-events: none;
}

.hero__inner {
  max-width: 46rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-block-end: var(--space-6);
}

.hero h1 {
  margin-block: var(--space-2) 0;
  color: var(--color-invert-text);
}

.hero__desc {
  font-size: 1.15rem;
  color: var(--color-invert-muted);
  max-width: 56ch;
}

.hero__ctas {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid #2b2b2b;
}

.hero__stat-num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero__stat-label {
  font-size: 0.875rem;
  color: var(--color-invert-muted);
  margin-top: 0.25rem;
}

/* ==========================================================================
   Cards / Projects
   ========================================================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: var(--space-4);
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--color-surface);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.project-card:hover,
.project-card:focus-visible {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-lg);
}

.project-card__image {
  display: block;
  width: calc(100% + var(--space-4) * 2);
  max-width: calc(100% + var(--space-4) * 2);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin: calc(var(--space-4) * -1) calc(var(--space-4) * -1) 0;
  border-bottom: 2px solid var(--color-text);
}

.project-card__client {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}

.project-card__title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-top: 0.35rem;
}

.project-card__desc {
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-1);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.6rem;
  border-radius: 0;
  border: 1.5px solid var(--color-text);
  color: var(--color-text);
  background: var(--color-bg);
}

.project-card__result {
  margin-top: var(--space-1);
  padding-top: var(--space-2);
  border-top: 1.5px solid var(--color-border-soft);
  font-size: 0.9375rem;
}

.project-card__result strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.project-card__cta {
  margin-top: auto;
  padding-top: var(--space-2);
  font-family: var(--font-mono);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.8125rem;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.project-card__cta::after {
  content: "\2192";
  transition: transform 0.15s ease;
}

.project-card:hover .project-card__cta::after {
  transform: translateX(3px);
}

/* ==========================================================================
   About / Capabilities
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.about-grid p + p {
  margin-top: var(--space-2);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.capability-card {
  border: 2px solid var(--color-text);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  background: var(--color-surface);
}

.capability-card h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.capability-card ul {
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.capability-card li {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  padding-left: 1.1rem;
  position: relative;
}

.capability-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-text);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) 0;
}

.contact-box__text {
  max-width: 42ch;
}

.contact-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.contact-links {
  align-items: center;
}

.contact-links a {
  text-decoration: none;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  border-bottom: 1px solid var(--color-border-soft);
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.contact-links a:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}

.section--invert .contact-links a {
  color: var(--color-invert-muted);
  border-color: var(--color-invert-muted);
}

.section--invert .contact-links a:hover {
  color: var(--color-invert-text);
  border-color: var(--color-invert-text);
}

/* ==========================================================================
   Footer
   ========================================================================== */
#site-footer {
  display: block;
  background: var(--color-invert-bg);
  color: var(--color-invert-muted);
  border-top: 2px solid #2b2b2b;
  padding-block: var(--space-5) var(--space-3);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.site-footer__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.site-footer__logo {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 750;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--color-invert-text);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-nav a {
  text-decoration: none;
  color: var(--color-invert-text);
  font-size: 0.9375rem;
  transition: color 0.15s ease;
}

.footer-nav a:hover {
  color: var(--color-invert-muted);
  text-decoration: underline;
}

.site-footer__bottom {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--color-invert-muted);
}

/* ==========================================================================
   Case study pages
   ========================================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.breadcrumb a {
  text-decoration: none;
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-text);
  text-decoration: underline;
}

.case-hero {
  padding-block: var(--space-5) var(--space-6);
  border-bottom: 2px solid var(--color-text);
}

.case-hero__client {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}

.case-hero h1 {
  margin-top: var(--space-2);
  max-width: 32ch;
}

.case-hero__desc {
  margin-top: var(--space-2);
  max-width: 62ch;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 2px solid var(--color-text);
}

.case-meta dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.case-meta dd {
  margin: 0.35rem 0 0;
  font-size: 0.9375rem;
  font-weight: 600;
}

.case-body {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6);
  align-items: start;
}

.case-toc {
  position: sticky;
  top: 6.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.case-toc a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-border-soft);
  padding-left: 0.75rem;
  line-height: 1.4;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.case-toc a:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}

.case-toc a.is-active {
  color: var(--color-text);
  border-color: var(--color-text);
  font-weight: 600;
}

.case-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  max-width: 68ch;
}

.case-section h2 {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.case-section__num {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  font-size: 1.05rem;
  font-weight: 600;
}

.case-section > p,
.case-section > ul {
  margin-top: var(--space-2);
  color: var(--color-text);
}

.case-section > h3 {
  margin-top: var(--space-4);
}

.case-figure {
  margin-top: var(--space-4);
}

.case-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--color-text);
}

.case-figure figcaption {
  margin-top: var(--space-2);
  font-size: 0.8125rem;
  font-style: italic;
  color: var(--color-text-muted);
}

.case-section ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.case-section li {
  padding-left: 1.1rem;
  position: relative;
  color: var(--color-text-muted);
}

.case-section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--color-text);
}

.callout {
  background: var(--color-bg-alt);
  border: 2px solid var(--color-text);
  border-left: 6px solid var(--color-text);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--color-text);
}

.quote {
  border-left: 4px solid var(--color-text);
  padding-left: var(--space-3);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-text);
}

.quote cite {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
}

/* Evidencia -> Insight -> Decision flow */
.evidence-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: var(--space-2);
  align-items: stretch;
  margin-top: var(--space-2);
}

.evidence-flow__step {
  background: var(--color-surface);
  border: 2px solid var(--color-text);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.evidence-flow__step--decision {
  background: var(--color-invert-bg);
  border-color: var(--color-invert-bg);
  color: var(--color-invert-text);
  box-shadow: var(--shadow-sm);
}

.evidence-flow__step--decision .evidence-flow__label {
  color: var(--color-invert-text);
}

.evidence-flow__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 650;
  color: var(--color-text);
}

.evidence-flow__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.evidence-flow__step--decision .evidence-flow__text {
  color: var(--color-invert-muted);
}

.evidence-flow__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 1.25rem;
}

.decisions-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-2);
}

.decisions-table th,
.decisions-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1.5px solid var(--color-border-soft);
  font-size: 0.9375rem;
  vertical-align: top;
}

.decisions-table thead th {
  border-bottom: 2px solid var(--color-text);
}

.decisions-table th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.case-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-5);
  border-top: 2px solid var(--color-text);
  flex-wrap: wrap;
}

.case-nav a {
  text-decoration: none;
}

.case-nav__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.case-nav__title {
  font-weight: 700;
  color: var(--color-text);
}

.case-nav__next {
  text-align: right;
  margin-left: auto;
}

/* ==========================================================================
   CV page
   ========================================================================== */
.cv-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-block: var(--space-6) var(--space-4);
}

.cv-section {
  padding-block: var(--space-4);
  border-top: 2px solid var(--color-text);
}

.cv-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.cv-item:not(:last-child) {
  border-bottom: 1.5px solid var(--color-border-soft);
}

.cv-item__period {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.cv-item__role {
  font-weight: 700;
}

.cv-item__org {
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}

.cv-item ul {
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.cv-item li {
  padding-left: 1.1rem;
  position: relative;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.cv-item li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-text);
}

/* ==========================================================================
   Marquee ticker
   ========================================================================== */
.marquee {
  position: relative;
  border-top: 1px solid #2b2b2b;
  overflow: hidden;
  padding-block: var(--space-2);
}

.marquee__track {
  display: flex;
  width: max-content;
  gap: 3rem;
  animation: marquee 32s linear infinite;
}

.marquee:hover .marquee__track,
.marquee:focus-within .marquee__track {
  animation-play-state: paused;
}

.marquee__item {
  display: flex;
  align-items: center;
  gap: 3rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-invert-muted);
  white-space: nowrap;
}

.marquee__item span {
  color: var(--color-invert-text);
}

.marquee__item::after {
  content: "\2726";
  color: var(--color-invert-muted);
}

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

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

/* ==========================================================================
   Scroll reveal — 3 families only. Every animated entrance on the site
   uses one of these three; do not add a fourth without strong reason.
   ========================================================================== */

/* A. Vertical reveal — titles, paragraphs, metadata, editorial content. */
.reveal {
  opacity: 0;
  transform: translateY(var(--motion-distance-md));
  transition:
    opacity var(--motion-duration-base) var(--motion-ease-standard),
    transform var(--motion-duration-base) var(--motion-ease-standard);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Smaller-hierarchy variant (metadata, tags, quick-read fragments):
   shorter distance, faster settle. */
.reveal--sm {
  transform: translateY(var(--motion-distance-sm));
  transition-duration: var(--motion-duration-fast);
}

/* B. Title mask reveal — hero H1, case H1, page H1 only. Each line is
   wrapped by js/enhance.js in .reveal-line-mask > .reveal-line-inner. */
.reveal-title .reveal-line-mask {
  display: block;
  overflow: hidden;
}

.reveal-title .reveal-line-inner {
  display: block;
  opacity: 0;
  transform: translateY(100%);
  transition:
    opacity var(--motion-duration-slow) var(--motion-ease-standard),
    transform var(--motion-duration-slow) var(--motion-ease-standard);
}

.reveal-title.is-visible .reveal-line-inner {
  opacity: 1;
  transform: translateY(0);
}

/* Fallback: if JS never splits the title into lines, treat it as a
   plain vertical reveal so content is never permanently hidden. */
.reveal-title:not(.is-split) {
  opacity: 0;
  transform: translateY(var(--motion-distance-md));
  transition:
    opacity var(--motion-duration-base) var(--motion-ease-standard),
    transform var(--motion-duration-base) var(--motion-ease-standard);
}

.reveal-title:not(.is-split).is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* C. Visual reveal — images, mockups, diagrams, featured cards.
   Opacity + minimal lift + a hint of scale. No zoom, no rotation. */
.reveal-visual {
  opacity: 0;
  transform: translateY(var(--motion-distance-md)) scale(0.98);
  transition:
    opacity var(--motion-duration-slow) var(--motion-ease-standard),
    transform var(--motion-duration-slow) var(--motion-ease-standard);
}

.reveal-visual.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Groups: stagger-item delay is set inline by js/enhance.js (index * a
   per-context step), capped so a group never spans more than ~560ms. */
.stagger-item {
  opacity: 0;
  transform: translateY(var(--motion-distance-md));
  transition:
    opacity var(--motion-duration-base) var(--motion-ease-standard),
    transform var(--motion-duration-base) var(--motion-ease-standard);
}

.stagger-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Page-intro sequence — fixed delay bands for the above-the-fold entrance
   shared by every page (hero / case-hero / cv-header). Order: eyebrow,
   title, description, metadata, first visual. Total sequence stays
   under ~350ms so the page is interactive well before 1.5s. */
.page-intro__eyebrow {
  transition-delay: 0ms;
}

.page-intro__title {
  transition-delay: 100ms;
}

.page-intro__desc {
  transition-delay: 160ms;
}

.page-intro__meta {
  transition-delay: 220ms;
}

.page-intro__visual {
  transition-delay: 300ms;
}

/* ==========================================================================
   Floating actions (contact CTA + back to top)
   ========================================================================== */
.floating-actions {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 150;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.6rem;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.15s ease;
}

body.nav-open .floating-actions,
.floating-actions.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.floating-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--color-text);
  color: var(--color-bg);
  border: 2px solid var(--color-text);
  padding: 0.85rem 1.35rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.floating-cta::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #34d17c;
  flex-shrink: 0;
}

.floating-cta__icon {
  flex-shrink: 0;
}

.floating-cta:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-md);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-bg);
  color: var(--color-text);
  border: 2px solid var(--color-text);
  cursor: pointer;
  font-size: 1rem;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

@media (max-width: 640px) {
  .floating-cta span.floating-cta__label {
    display: none;
  }
  .floating-cta {
    padding: 0.85rem;
  }
  .floating-cta::before {
    display: none;
  }
  .floating-cta__icon {
    width: 20px;
    height: 20px;
  }
}

/* ==========================================================================
   Case study — closing CTA
   ========================================================================== */
.case-cta {
  background: var(--color-invert-bg);
  color: var(--color-invert-text);
  padding-block: var(--space-5);
  text-align: center;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.case-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.case-cta h2 {
  color: var(--color-invert-text);
  max-width: 34ch;
  margin-inline: auto;
}

.case-cta p {
  color: var(--color-invert-muted);
  max-width: 48ch;
  margin: var(--space-2) auto 0;
}

.case-cta .btn-primary {
  background: var(--color-invert-text);
  color: var(--color-invert-bg);
  border-color: var(--color-invert-text);
  box-shadow: 4px 4px 0 var(--color-invert-muted);
  margin-top: var(--space-3);
}

.case-cta .btn-primary:hover {
  box-shadow: 7px 7px 0 var(--color-invert-muted);
}

/* ==========================================================================
   Copy-to-clipboard button
   ========================================================================== */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1.5px solid currentColor;
  background: transparent;
  color: inherit;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.copy-btn:hover {
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-bg);
}

.section--invert .copy-btn:hover {
  background: var(--color-invert-text);
  border-color: var(--color-invert-text);
  color: var(--color-invert-bg);
}

.copy-btn__check {
  color: #34d17c;
  font-weight: 700;
}

/* ==========================================================================
   CV language switch
   ========================================================================== */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.lang-switch a {
  text-decoration: none;
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}

.lang-switch a:hover {
  color: var(--color-text);
}

.lang-switch a[aria-current="page"] {
  color: var(--color-text);
  pointer-events: none;
}

/* ==========================================================================
   Reading time badge
   ========================================================================== */
.reading-time {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.reading-time::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--color-text);
  border-radius: 50%;
}

@media print {
  #site-header,
  #site-footer,
  .floating-actions,
  .no-print {
    display: none !important;
  }
  body {
    background: #fff;
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .capability-grid {
    grid-template-columns: 1fr 1fr;
  }

  .case-body {
    grid-template-columns: 1fr;
  }

  .case-toc {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-text);
  }

  .case-toc a {
    border-left: none;
    border-bottom: 2px solid var(--color-border-soft);
    padding-left: 0;
    padding-bottom: 0.25rem;
  }

  .evidence-flow {
    grid-template-columns: 1fr;
  }

  .evidence-flow__arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 720px) {
  .nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 66px;
    background: var(--color-bg);
    border-bottom: 2px solid var(--color-text);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-3);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
  }

  .nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav__link {
    display: block;
    padding: 0.85rem 0.25rem;
    border-bottom: 1.5px solid var(--color-border-soft);
    border-radius: 0;
  }

  .nav__cta {
    margin-top: var(--space-2);
  }

  .nav .lang-switch {
    margin-top: var(--space-3);
    justify-content: center;
  }

  .nav__toggle {
    display: inline-flex;
  }

  .hero__stats {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .site-footer__row {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-nav {
    flex-direction: column;
    gap: 0.6rem;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .case-meta {
    grid-template-columns: 1fr 1fr;
  }

  .contact-box {
    flex-direction: column;
    align-items: flex-start;
  }

  .cv-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .cv-header {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .case-meta {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Page transitions — native cross-document View Transitions API.
   Zero JS, zero risk: unsupported browsers simply navigate normally.
   ========================================================================== */
@view-transition {
  navigation: auto;
}

@media (prefers-reduced-motion: no-preference) {
  ::view-transition-old(root) {
    animation: page-transition-out calc(var(--motion-duration-fast) * 0.7) var(--motion-ease-standard) both;
  }

  ::view-transition-new(root) {
    animation: page-transition-in var(--motion-duration-base) var(--motion-ease-standard) both;
  }
}

@keyframes page-transition-out {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(calc(var(--motion-distance-sm) * -1));
  }
}

@keyframes page-transition-in {
  from {
    opacity: 0;
    transform: translateY(var(--motion-distance-sm));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}