/* Visual System — piyaz-inspired tokens (production) */

@font-face {
  font-family: "Inter Variable";
  src: url("../assets/fonts/inter-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  font-style: normal;
}

@font-face {
  font-family: "Geist Mono";
  src: url("../assets/fonts/geist-mono-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
  font-style: normal;
}

:root {
  --color-base: #07080a;
  --color-base2: #0d0e11;
  --color-surface: #101111;
  --color-raised: #1b1c1e;
  --color-hover: #252829;
  --color-border: #ffffff0f;
  --color-border2: #ffffff1a;
  --color-t1: #f9f9f9;
  --color-t2: #cecece;
  --color-t3: #868a90;
  --color-t4: #787a7e;
  --color-accent: #976b68;
  --color-accent-l: #c2a4a1;
  --color-clinical: #55b3ff;
  --color-operational: #ffbc33;
  --color-technical: #5fb87a;
  --glow: rgba(151, 107, 104, 0.28);
  --brand-text: linear-gradient(180deg, #c2a4a1 0%, #976b68 42%, #7a8f8f 100%);
  --ease-brand: cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: "Inter Variable", Inter, system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, monospace;
  --max: 1180px;
  --pyz-rise-y: 16px;
  --pyz-rise-blur: 6px;
}

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

html {
  scroll-behavior: smooth;
  letter-spacing: 0.005em;
}

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

  .pyz-rise,
  .pyz-rise-word {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    filter: none !important;
    transform: none !important;
  }
}

body {
  margin: 0;
  min-height: 100%;
  overflow-x: clip;
  font-family: var(--font-sans);
  background: var(--color-base);
  color: var(--color-t1);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

::selection {
  background: rgba(151, 107, 104, 0.3);
}

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-accent-l);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

img {
  max-width: 100%;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  padding: 0.5rem 0.75rem;
  background: var(--color-raised);
  color: var(--color-t1);
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

.wash {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 14% -6%, rgba(151, 107, 104, 0.14) 0%, transparent 58%),
    radial-gradient(ellipse 55% 42% at 100% 2%, rgba(118, 137, 137, 0.08) 0%, transparent 58%);
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

#ambient-graph-canvas,
#ambient-graph {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.85s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity;
}

html.pyz-motion-calm #ambient-graph,
html.pyz-motion-calm #ambient-graph-canvas {
  transition: opacity 0.2s linear;
}

@media (prefers-reduced-motion: reduce) {
  #ambient-graph,
  #ambient-graph-canvas {
    transition: opacity 0.15s linear;
  }
}

#ambient-graph canvas {
  pointer-events: none !important;
}

/* —— Pill nav —— */
.header {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  width: calc(100vw - 2rem);
  max-width: 920px;
}

.nav-container {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.5rem 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-border2);
  background: color-mix(in srgb, var(--color-base) 78%, transparent);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.logo {
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--color-t1);
  padding: 0 0.35rem;
}

.mobile-menu-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.375rem;
  border: 1px solid var(--color-border2);
  background: var(--color-raised);
  color: var(--color-t2);
  cursor: pointer;
}

.mobile-menu-toggle .hamburger,
.mobile-menu-toggle .hamburger::before,
.mobile-menu-toggle .hamburger::after {
  display: block;
  width: 14px;
  height: 1.75px;
  background: currentColor;
  border-radius: 1px;
  position: relative;
  transition: transform 0.2s var(--ease-brand);
}

.mobile-menu-toggle .hamburger::before,
.mobile-menu-toggle .hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.mobile-menu-toggle .hamburger::before {
  top: -5px;
}

.mobile-menu-toggle .hamburger::after {
  top: 5px;
}

.mobile-menu-toggle.active .hamburger {
  background: transparent;
}

.mobile-menu-toggle.active .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-menu-toggle.active .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: none;
  align-items: center;
  gap: 0.15rem;
}

.nav-links a {
  position: relative;
  text-decoration: none;
  color: var(--color-t3);
  font-size: 13px;
  font-weight: 500;
  padding: 0.4rem 0.65rem;
  border-radius: 0.375rem;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-links a:not(.btn-primary):hover,
.nav-links a:not(.btn-primary).is-active {
  color: var(--color-t1);
  background: var(--color-hover);
}

.nav-links .btn-primary {
  display: inline-flex;
  align-items: center;
  height: 2rem;
  padding: 0 0.85rem;
  background: var(--color-accent);
  color: #fff !important;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 14px var(--glow);
}

.nav-socials {
  display: none;
  gap: 0.25rem;
  margin-left: 0.25rem;
}

.nav-socials a {
  display: inline-flex;
  width: 1.75rem;
  height: 1.75rem;
  align-items: center;
  justify-content: center;
  color: var(--color-t3);
  padding: 0;
}

.nav-socials svg {
  width: 14px;
  height: 14px;
}

@media (min-width: 860px) {
  .mobile-menu-toggle {
    display: none;
  }

  .nav-links {
    display: flex;
    margin-left: auto;
  }

  .nav-socials {
    display: inline-flex;
  }
}

@media (max-width: 859px) {
  .nav-links.active {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    padding: 0.75rem;
    border-radius: 0.75rem;
    border: 1px solid var(--color-border2);
    background: var(--color-base2);
    gap: 0.25rem;
  }

  .nav-links.active .nav-socials {
    display: flex;
    margin: 0.5rem 0 0;
  }

  .nav-links.active > li > a {
    display: flex;
    min-height: 2.75rem;
    align-items: center;
  }

  .nav-links.active .nav-socials a {
    width: 2.75rem;
    height: 2.75rem;
  }
}

main {
  position: relative;
  z-index: 2;
}

main:focus {
  outline: none;
}

.container {
  width: min(100% - 3rem, var(--max));
  margin-inline: auto;
}

.section {
  padding: clamp(6rem, 12vw, 10rem) 0;
}

.eyebrow,
.overline {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-l);
}

.scrim {
  position: relative;
  isolation: isolate;
  max-width: 720px;
  padding: 1.25rem 1.25rem 1.25rem 0;
}

.scrim::before {
  content: "";
  position: absolute;
  inset: -40px -64px;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(
    ellipse 75% 70% at 40% 50%,
    #07080aeb 0%,
    #07080ab8 42%,
    transparent 72%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 75% 70% at 40% 50%,
    #000 0%,
    #000 55%,
    transparent 78%
  );
  mask-image: radial-gradient(
    ellipse 75% 70% at 40% 50%,
    #000 0%,
    #000 55%,
    transparent 78%
  );
}

.scrim-wide {
  max-width: 880px;
}

.scrim-wide::before {
  inset: -36px -56px;
  background: radial-gradient(
    ellipse 95% 80% at 40% 50%,
    #07080aed 0%,
    #07080ac7 45%,
    transparent 75%
  );
  -webkit-mask-image: radial-gradient(
    ellipse 95% 80% at 40% 50%,
    #000 0%,
    #000 50%,
    transparent 78%
  );
  mask-image: radial-gradient(
    ellipse 95% 80% at 40% 50%,
    #000 0%,
    #000 50%,
    transparent 78%
  );
}

@media (max-width: 859px) {
  .scrim::before {
    inset: -28px -16px;
  }
}

h1,
.hero-title {
  margin: 0 0 1.25rem;
  font-size: clamp(34px, 4.9vw, 64px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.06;
  max-width: 20ch;
}

h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.04;
  max-width: 18ch;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lede,
.hero-subtitle,
.about-text-column p,
.role-body p,
.project-oneliner,
.project-problem,
.contact-subtitle {
  color: var(--color-t2);
  font-size: 16.5px;
  line-height: 1.62;
  max-width: 36rem;
}

.about-text-column p + p {
  margin-top: 1rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0;
}

.contact-subtitle {
  margin: 0 0 0.5rem;
}

.hero {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  padding-bottom: 4rem;
}

.hero-ctas,
.ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 2.75rem;
  padding: 0 1.25rem;
  border-radius: 0.5rem;
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  background: transparent;
  color: var(--color-t2);
  font-family: inherit;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 18px var(--glow);
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-secondary {
  border-color: var(--color-border2);
  background: var(--color-raised);
  color: var(--color-t2);
}

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

.section-header {
  margin-bottom: 2rem;
}

.section-header .separator {
  display: none;
}

/* About */
.about-grid {
  display: grid;
  gap: 2rem;
}

.about-text-column h3 {
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.about-stats {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  max-width: 40rem;
}

@media (max-width: 640px) {
  .about-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.about-stats strong {
  display: block;
  font-size: 28px;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.about-stats span {
  display: block;
  margin-top: 0.35rem;
  color: var(--color-t3);
  font-size: 13px;
  line-height: 1.4;
}

.about-traits-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.75rem;
}

.badge {
  border: 1px solid var(--color-border2);
  background: var(--color-raised);
  border-radius: 0.375rem;
  padding: 0.35rem 0.65rem;
  font-size: 12px;
  color: var(--color-t2);
}

/* Experience — flat roles (C density) */
.role-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
  max-width: 42rem;
}

.role-list .eyebrow {
  margin-bottom: 0.35rem;
}

.role-company {
  margin: 0.15rem 0 0.65rem;
  color: var(--color-t3);
  font-size: 13px;
}

.role-body p {
  margin: 0 0 0.75rem;
  font-size: 14.5px;
  color: var(--color-t3);
}

.role-body ul,
.role-bullets {
  margin: 0.75rem 0 0;
  padding-left: 1.1rem;
  color: var(--color-t3);
  font-size: 14px;
  line-height: 1.55;
}

.case-study .project-entry h3 {
  margin-top: 1.5rem;
}

.case-study .nav-links {
  display: flex !important;
  margin-left: auto;
}

.case-study .mobile-menu-toggle {
  display: none;
}

.project-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease-brand);
}

@media (prefers-reduced-motion: reduce) {
  :root:not(.pyz-motion-full) .project-details {
    transition: none;
  }
}

.project-details.expanded {
  /* height set in JS */
}

.expand-btn {
  margin-top: 0.75rem;
  border: 0;
  background: transparent;
  color: var(--color-accent-l);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  cursor: pointer;
  padding: 0;
}

/* Projects — flat articles */
.project-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 42rem;
}

.project-entry {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
}

.project-category {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-l);
}

.project-title {
  margin: 0.4rem 0 0.65rem;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.project-oneliner {
  margin: 0 0 0.75rem;
  font-size: 14.5px;
  color: var(--color-t3);
}

.project-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 0.75rem 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-t3);
}

.project-problem {
  margin: 0.75rem 0;
  font-size: 14.5px;
  color: var(--color-t3);
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.project-meta span,
.feature-chip {
  font-size: 11px;
  color: var(--color-t4);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  padding: 0.2rem 0.45rem;
}

.callout-follow {
  margin-top: 0.5rem;
}

.project-callout {
  margin-top: 0.75rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--color-border2);
  color: var(--color-t3);
  font-size: 13.5px;
}

.project-divider {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 0.75rem 0;
}

/* Skills */
.domain-legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 0;
  margin: 0 0 1.75rem;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--color-t3);
}

.domain-legend li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.swatch.clinical {
  background: var(--color-clinical);
}

.swatch.operational {
  background: var(--color-operational);
}

.swatch.technical {
  background: var(--color-technical);
}

.skills-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 800px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.skill-group-header {
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-t4);
  margin-bottom: 0.85rem;
}

.pill-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pill {
  border: 1px solid var(--color-border2);
  background: color-mix(in srgb, var(--color-surface) 80%, transparent);
  border-radius: 0.375rem;
  padding: 0.35rem 0.55rem;
  font-size: 12px;
  color: var(--color-t2);
}

.skill-category--blue .pill-accent {
  border-color: color-mix(in srgb, var(--color-clinical) 35%, transparent);
}

.skill-category--green .pill-accent {
  border-color: color-mix(in srgb, var(--color-technical) 35%, transparent);
}

.skill-category--amber .pill-accent {
  border-color: color-mix(in srgb, var(--color-operational) 35%, transparent);
}

/* Contact */
.contact-container {
  max-width: 42rem;
}

.contact-title {
  max-width: 18ch;
}

.contact-links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 2rem 0 1rem;
}

.contact-link-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  color: var(--color-t2);
  font-size: 14px;
}

.contact-link-item:hover {
  color: var(--color-t1);
}

.contact-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.contact-divider {
  display: none;
}

.contact-location {
  color: var(--color-t4);
  font-size: 13px;
}

.footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
  color: var(--color-t4);
  font-size: 12px;
}

/* Brand clip — gradient fill on key words */
.brand-clip,
.pyz-brand-clip {
  background: var(--brand-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

@supports not (background-clip: text) {
  .brand-clip,
  .pyz-brand-clip {
    color: var(--color-accent-l);
    -webkit-text-fill-color: currentColor;
    background: none;
  }
}

/* Motion */
@keyframes pyz-rise {
  from {
    opacity: 0.05;
    filter: blur(var(--pyz-rise-blur, 6px));
    transform: translateY(var(--pyz-rise-y, 16px));
  }
  to {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }
}

.pyz-rise {
  opacity: 1;
}

.pyz-rise.is-visible {
  animation: pyz-rise 0.6s var(--ease-brand) both;
  animation-delay: var(--rise-delay, 0s);
}

.pyz-rise-word {
  display: inline-block;
  white-space: pre;
  opacity: 1;
}

.pyz-rise-word.is-visible {
  animation: pyz-rise 0.65s var(--ease-brand) both;
  animation-delay: var(--rise-delay, 0s);
}

@keyframes pyz-rise-noblur {
  from {
    opacity: 0.05;
    transform: translateY(var(--pyz-rise-y, 24px));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* filter on an ancestor breaks background-clip:text — brand words skip blur */
.pyz-rise-word.brand-clip {
  filter: none;
}

.pyz-rise-word.brand-clip.is-visible {
  animation-name: pyz-rise-noblur;
}

/* Case study pages (no ambient graph) */
body.case-study #ambient-graph-canvas,
body.case-study #ambient-graph {
  display: none;
}

.case-study main {
  padding-top: 5rem;
}

.case-study .project-entry.is-lead {
  border-top: 0;
  padding-top: 0;
}

.case-study .after-article {
  margin-top: 2rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: var(--color-t3);
  text-decoration: none;
  font-size: 13px;
}

.back-link:hover {
  color: var(--color-t1);
}

/* Piyaz behavior parity: hide system cursor when custom cursor runs */
html.pyz-hide-cursor,
html.pyz-hide-cursor * {
  cursor: none !important;
}

html.lenis,
html.lenis body {
  height: auto;
}

html.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

/* Motion override: keep motion even when OS prefers reduce */
@media (prefers-reduced-motion: reduce) {
  :root:not(.pyz-motion-full) .pyz-rise,
  :root:not(.pyz-motion-full) .pyz-rise-word {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    filter: none !important;
    transform: none !important;
  }
}

.motion-hint {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 50;
  max-width: 16rem;
  padding: 0.75rem 0.9rem;
  border-radius: 0.75rem;
  border: 1px solid var(--color-border2);
  background: color-mix(in srgb, var(--color-base2) 92%, transparent);
  backdrop-filter: blur(10px);
  color: var(--color-t2);
  font-size: 12.5px;
  line-height: 1.45;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

.motion-hint[hidden] {
  display: none !important;
}

.motion-hint button {
  margin-top: 0.55rem;
  margin-right: 0.4rem;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  border-radius: 0.375rem;
  border: 1px solid var(--color-border2);
  background: var(--color-raised);
  color: var(--color-t1);
  padding: 0.35rem 0.65rem;
  cursor: pointer;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-thumb {
  background: #8080802e;
  border-radius: 10px;
}

/* Evidence-backed portfolio IA */
.hero-copy {
  max-width: 790px;
}

.hero-subtitle {
  max-width: 43rem;
}

.hero-proof,
.case-status,
.proof-list,
.case-nav,
.stack-list,
.case-bullets,
.evidence-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.2rem;
  margin-top: 2rem;
  color: var(--color-t3);
  font-family: var(--font-mono);
  font-size: 12px;
}

.hero-proof li {
  display: inline-flex;
  gap: 0.35rem;
}

.hero-proof li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 0.34rem;
  border-radius: 50%;
  background: var(--color-technical);
  box-shadow: 0 0 10px color-mix(in srgb, var(--color-technical) 60%, transparent);
}

.hero-proof span {
  color: var(--color-t2);
}

.section-intro {
  max-width: 42rem;
  margin: -0.25rem 0 0;
  color: var(--color-t2);
  font-size: 17px;
  line-height: 1.65;
}

.case-grid {
  max-width: 72rem;
}

.case-card {
  position: relative;
  isolation: isolate;
  padding: clamp(2.25rem, 5vw, 4rem) 0;
  border-top: 1px solid var(--color-border2);
}

.case-card::before {
  content: "";
  position: absolute;
  inset: 0 -2.5rem;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(90deg, #07080af7 0%, #07080ae8 66%, #07080aad 88%, transparent 100%);
}

.case-card:last-child {
  border-bottom: 1px solid var(--color-border2);
}

.case-card-topline {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.case-number,
.principle-index,
.section-kicker {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--color-t4);
}

.case-number {
  padding-right: 0.75rem;
  border-right: 1px solid var(--color-border2);
}

.case-card-title {
  margin: 0 0 0.75rem;
  max-width: 24ch;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.case-card-dek {
  max-width: 50rem;
  margin: 0;
  color: var(--color-t2);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.55;
}

.case-summary {
  display: grid;
  gap: 1.25rem;
  margin: 2rem 0 0;
}

.case-summary div {
  padding-top: 0.85rem;
  border-top: 1px solid var(--color-border);
}

.case-summary dt {
  margin-bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-l);
}

.case-summary dd {
  margin: 0;
  color: var(--color-t3);
  font-size: 14px;
  line-height: 1.6;
}

.proof-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.5rem 0;
}

.proof-list li {
  border: 1px solid var(--color-border2);
  border-radius: 999px;
  padding: 0.35rem 0.65rem;
  color: var(--color-t2);
  background: color-mix(in srgb, var(--color-surface) 76%, transparent);
  font-family: var(--font-mono);
  font-size: 12px;
}

.case-actions,
.contact-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.1rem;
}

.text-link,
.footer a {
  color: var(--color-t2);
  text-underline-offset: 0.25em;
  text-decoration-color: var(--color-border2);
}

.text-link {
  font-size: 13px;
  font-weight: 600;
}

.text-link:hover,
.footer a:hover {
  color: var(--color-t1);
  text-decoration-color: var(--color-accent-l);
}

.principle-grid {
  display: grid;
  gap: 1px;
  max-width: 72rem;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.principle-grid article {
  min-height: 15rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: color-mix(in srgb, var(--color-base2) 91%, transparent);
}

.principle-index {
  display: block;
  margin-bottom: 2.5rem;
  color: var(--color-accent-l);
}

.principle-grid h3 {
  margin-bottom: 0.75rem;
  font-size: 20px;
}

.principle-grid p {
  margin: 0;
  color: var(--color-t3);
  font-size: 14.5px;
  line-height: 1.65;
}

.background-grid {
  display: grid;
  gap: 2.5rem;
  max-width: 58rem;
}

.background-aside {
  padding-top: 0.25rem;
}

.stack-list {
  margin-bottom: 1.5rem;
  color: var(--color-t3);
  font-size: 14px;
  line-height: 1.8;
}

.contact-cta-row {
  margin: 2rem 0 1.25rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.footer-row p {
  margin: 0;
}

/* Case studies */
.case-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin-left: auto;
}

.case-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.4rem 0.65rem;
  border-radius: 0.375rem;
  color: var(--color-t3);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}

.case-nav a:hover {
  color: var(--color-t1);
  background: var(--color-hover);
}

.case-nav .btn-primary {
  padding-inline: 0.85rem;
  color: #fff;
}

.case-study main {
  padding-top: 0;
}

.case-hero {
  padding-top: clamp(8.5rem, 14vw, 12rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-border);
}

.case-hero h1 {
  max-width: 16ch;
  margin-bottom: 1.25rem;
  font-size: clamp(44px, 8vw, 84px);
}

.case-hero-dek {
  max-width: 52rem;
  margin: 0;
  color: var(--color-t2);
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.55;
}

.case-status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.5rem;
  margin-top: 2rem;
  color: var(--color-t2);
  font-family: var(--font-mono);
  font-size: 12px;
}

.case-status span {
  color: var(--color-accent-l);
}

.case-body {
  padding-top: clamp(4rem, 8vw, 7rem);
}

.case-layout {
  display: grid;
  gap: 4rem;
  align-items: start;
}

.case-narrative {
  max-width: 46rem;
}

.case-narrative > section {
  padding: 0 0 clamp(3.5rem, 7vw, 6rem);
}

.case-narrative > section + section {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  border-top: 1px solid var(--color-border);
}

.case-narrative h2 {
  max-width: none;
  margin: 0.4rem 0 1.25rem;
  font-size: clamp(28px, 4vw, 40px);
}

.case-narrative p,
.case-bullets {
  color: var(--color-t2);
  font-size: 16px;
  line-height: 1.75;
}

.case-narrative p {
  margin: 0;
}

.case-narrative p + p {
  margin-top: 1.15rem;
}

.case-bullets {
  display: grid;
  gap: 0.85rem;
}

.case-bullets li {
  position: relative;
  padding-left: 1.3rem;
}

.case-bullets li::before {
  content: "";
  position: absolute;
  top: 0.72rem;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent-l);
}

code {
  padding: 0.12em 0.3em;
  border: 1px solid var(--color-border);
  border-radius: 0.25rem;
  background: var(--color-base2);
  color: var(--color-t2);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.implementation-list {
  display: grid;
  gap: 1px;
  margin-top: 2rem;
  padding: 0;
  list-style: none;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.implementation-list li {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  background: var(--color-base2);
}

.implementation-list strong {
  color: var(--color-accent-l);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.implementation-list span {
  color: var(--color-t3);
  font-size: 13.5px;
}

.verification-callout {
  margin-top: 2rem;
  padding: 1.2rem 1.25rem;
  border-left: 2px solid var(--color-accent);
  background: color-mix(in srgb, var(--color-raised) 52%, transparent);
}

.verification-callout strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--color-accent-l);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.verification-callout p {
  color: var(--color-t3);
  font-size: 14px;
  line-height: 1.65;
}

.evidence-section {
  scroll-margin-top: 6rem;
}

.evidence-links {
  border-top: 1px solid var(--color-border2);
}

.evidence-links a {
  display: grid;
  gap: 0.25rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-t2);
  text-decoration: none;
}

.evidence-links a::after {
  content: "Open source ↗";
  grid-column: 2;
  grid-row: 1 / 3;
  align-self: center;
  color: var(--color-t4);
  font-family: var(--font-mono);
  font-size: 10px;
}

.evidence-links strong,
.evidence-links span {
  grid-column: 1;
}

.evidence-links strong {
  color: var(--color-t1);
  font-size: 14px;
}

.evidence-links span {
  color: var(--color-t3);
  font-size: 12.5px;
}

.evidence-links a:hover strong {
  color: var(--color-accent-l);
}

.case-aside {
  display: grid;
  gap: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-base2) 84%, transparent);
}

.aside-block + .aside-block {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.aside-block .eyebrow {
  margin-bottom: 0.45rem;
}

.aside-block p:last-child {
  margin: 0;
  color: var(--color-t3);
  font-size: 13px;
  line-height: 1.6;
}

.case-next {
  position: relative;
  z-index: 2;
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid var(--color-border2);
}

.next-case-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  color: var(--color-t1);
  text-decoration: none;
  font-size: clamp(28px, 5vw, 52px);
  font-weight: 600;
  letter-spacing: -0.03em;
}

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

.evidence-hero h1 {
  max-width: 15ch;
}

.evidence-page {
  max-width: 58rem;
}

.evidence-page > section {
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
}

.evidence-page > section + section {
  padding-top: clamp(3.5rem, 7vw, 6rem);
  border-top: 1px solid var(--color-border);
}

.evidence-page h2 {
  max-width: none;
  margin: 0.4rem 0 1.25rem;
  font-size: clamp(28px, 4vw, 40px);
}

.evidence-page > section > p,
.ledger-grid p {
  color: var(--color-t2);
  font-size: 15.5px;
  line-height: 1.7;
}

.selection-table {
  margin-top: 2rem;
  overflow-x: auto;
  border: 1px solid var(--color-border2);
  border-radius: 0.5rem;
}

.selection-table table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: color-mix(in srgb, var(--color-base2) 88%, transparent);
}

.selection-table th,
.selection-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
  color: var(--color-t3);
  font-size: 13px;
  line-height: 1.55;
}

.selection-table thead th {
  color: var(--color-t4);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.selection-table tbody th {
  color: var(--color-t1);
  font-weight: 600;
}

.selection-table tr:last-child th,
.selection-table tr:last-child td {
  border-bottom: 0;
}

.decision {
  white-space: nowrap;
  color: var(--color-t3);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
}

.decision.selected {
  color: var(--color-technical);
}

.ledger-grid {
  display: grid;
  gap: 1px;
  margin-top: 2rem;
  border: 1px solid var(--color-border);
  background: var(--color-border);
}

.ledger-grid article {
  padding: clamp(1.4rem, 3vw, 2rem);
  background: var(--color-base2);
}

.ledger-grid h3 {
  margin-bottom: 1rem;
  font-size: 20px;
}

.ledger-grid p {
  margin: 0 0 1rem;
  color: var(--color-t3);
  font-size: 14px;
}

.ledger-grid strong {
  color: var(--color-t2);
}

.ledger-grid p a {
  color: var(--color-t2);
  text-underline-offset: 0.2em;
}

@media (min-width: 760px) {
  .case-summary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .principle-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .background-grid {
    grid-template-columns: minmax(0, 2fr) minmax(14rem, 1fr);
  }

  .implementation-list li {
    grid-template-columns: 7rem 1fr;
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .case-layout {
    grid-template-columns: minmax(0, 46rem) minmax(14rem, 18rem);
  }

  .case-aside {
    position: sticky;
    top: 6rem;
  }
}

@media (max-width: 859px) {
  .no-js .mobile-menu-toggle {
    display: none;
  }

  .no-js .nav-links {
    display: flex;
    flex-wrap: wrap;
    margin-left: auto;
  }

  .nav-links.active {
    max-height: calc(100dvh - 5.5rem);
    overflow-y: auto;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 2rem, var(--max));
  }

  .hero {
    min-height: 92dvh;
    padding-top: 7rem;
  }

  .hero .scrim::before {
    inset: -2rem -1rem;
    background: linear-gradient(90deg, #07080af7 0%, #07080ae8 76%, #07080a91 100%);
    -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 82%, transparent 100%);
    mask-image: linear-gradient(90deg, #000 0%, #000 82%, transparent 100%);
  }

  #ambient-graph,
  #ambient-graph-canvas {
    opacity: 0.62;
  }

  .case-card::before {
    inset-inline: -0.75rem;
  }

  .hero-proof {
    display: grid;
  }

  .hero-ctas .btn,
  .case-actions .btn,
  .contact-cta-row .btn {
    min-height: 2.875rem;
  }

  .case-actions {
    align-items: flex-start;
  }

  .case-nav li:nth-child(2) {
    display: none;
  }

  .case-nav a {
    min-height: 2.5rem;
    padding-inline: 0.5rem;
    font-size: 12px;
  }

  .case-nav .btn-primary {
    padding-inline: 0.65rem;
  }

  .case-hero .hero-ctas {
    display: grid;
  }

  .case-hero .hero-ctas .btn {
    width: 100%;
  }

  .case-status {
    display: grid;
    gap: 0.65rem;
  }

  .evidence-links a {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.25rem 0.75rem;
  }

  .evidence-links a::after {
    content: "↗";
    font-size: 14px;
  }

  .footer-row {
    flex-direction: column;
  }
}