.site-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.15rem;
  border: 1px solid var(--color-ink);
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  color: var(--color-bg);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition:
    transform var(--duration-fast) var(--ease-out),
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.site-button:hover {
  transform: translateY(-2px);
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.site-button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.site-button--secondary {
  position: relative;
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}

.site-button--secondary::after {
  content: "→";
  margin-left: 0.5rem;
  transition: transform var(--duration-fast) var(--ease-out);
}

.site-button--secondary:hover {
  background: var(--color-surface-alt);
  color: var(--color-ink);
  border-color: var(--color-accent);
  box-shadow: 0 6px 18px -8px var(--color-accent);
}

.site-button--secondary:hover::after {
  transform: translateX(4px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: currentColor;
}

.card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.expertise-card {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-height: 220px;
  transition:
    transform var(--duration-base) var(--ease-out),
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.expertise-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  color: var(--card-accent);
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}

.expertise-card__tag {
  margin-top: auto;
  padding-top: var(--space-4);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--card-accent);
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-accent);
  box-shadow: 0 12px 24px rgba(37, 34, 30, 0.08);
}

.expertise-card:hover .expertise-card__icon {
  background: var(--card-accent);
  color: var(--color-bg);
}

@media (prefers-reduced-motion: reduce) {
  .expertise-card:hover {
    transform: none;
  }
}

.methodology-step.is-active .methodology-step__marker {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
  transform: scale(1.08);
}

.kpi-card {
  padding: var(--space-5);
}

.kpi-card__label {
  margin-bottom: var(--space-3);
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.kpi-card__value {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.035em;
}

.kpi-card__detail {
  margin: var(--space-3) 0 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.15rem;
  font-size: var(--text-sm);
  font-weight: 700;
  transition:
    gap var(--duration-fast) var(--ease-out),
    opacity var(--duration-fast) ease;
}

.text-link:hover {
  gap: var(--space-3);
  opacity: 0.72;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.projects-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.projects-filter__button {
  min-height: 2.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    transform var(--duration-fast) var(--ease-out);
}

.projects-filter__button:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
  transform: translateY(-1px);
}

.projects-filter__button.is-active {
  border-color: var(--color-ink);
  background: var(--color-ink);
  color: var(--color-bg);
}

.projects-filter__empty {
  padding: var(--space-8);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-md);
  color: var(--color-muted);
  text-align: center;
  font-size: var(--text-sm);
}

@media (max-width: 600px) {
  .projects-filter {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: var(--space-2);
    scrollbar-width: thin;
  }

  .projects-filter__button {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .projects-filter__button:hover {
    transform: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-button:hover,
  .text-link:hover {
    transform: none;
  }
}

.site-nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-6);
  min-height: 5.5rem;
  border-bottom: 1px solid var(--color-line);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.site-nav__logo {
  flex-shrink: 0;
}

.site-nav__logo-arc {
  transform-box: fill-box;
  transform-origin: center;
  animation: logo-arc-spin 7s linear infinite;
}

@keyframes logo-arc-spin {
  from {
    transform: rotate(-90deg);
  }
  to {
    transform: rotate(270deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav__logo-arc {
    animation: none;
  }
}
.site-nav__brand-text > span {
  color: var(--color-accent);
}

.site-nav__links {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
}

.site-nav__links a {
  position: relative;
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: color var(--duration-fast) ease;
}

.site-nav__links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  left: 0;
  height: 1px;
  background: var(--color-ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-base) var(--ease-out);
  }

.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] {
  color: var(--color-ink);
}

.site-nav__links a:hover::after,
.site-nav__links a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.6rem;
  padding-inline: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--text-sm);
  font-weight: 700;
  transition:
    border-color var(--duration-fast) ease,
    transform var(--duration-fast) var(--ease-out);
}

.site-nav__cta:hover {
  border-color: var(--color-ink);
  transform: translateY(-1px);
}

@media (max-width: 800px) {
  .site-nav {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .site-nav__links {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav__links a::after,
  .site-nav__cta {
    transition: none;
  }

  .site-nav__cta:hover {
    transform: none;
  }
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  min-height: calc(100vh - 5.5rem);
  align-items: center;
  padding-block: var(--space-12);
}

.hero__intro {
  max-width: 920px;
}

.hero__title {
  max-width: 950px;
  margin: var(--space-5) 0 var(--space-6);
  font-size: clamp(3.4rem, 8vw, 7.5rem);
  letter-spacing: -0.055em;
}

.hero__title em {
  display: block;
  color: var(--color-accent);
  font-style: italic;
}

.hero__description {
  max-width: 650px;
  margin-bottom: var(--space-8);
  color: var(--color-muted);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

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

.hero__note {
  max-width: 620px;
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.4;
}

@media (max-width: 800px) {
  .hero {
    min-height: auto;
  }
}

.section-rail {
  position: fixed;
  top: 50%;
  right: var(--space-6);
  z-index: 500;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-4);
}

.section-rail__item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-rail__label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  opacity: 0;
  transform: translateX(4px);
  transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease;
  white-space: nowrap;
}

.section-rail__dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-line);
  transition: background var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.section-rail__item:hover .section-rail__label {
  opacity: 1;
  transform: translateX(0);
}

.section-rail__item[aria-current="true"] .section-rail__dot {
  background: var(--color-accent);
  transform: scale(1.6);
}

.section-rail__item[aria-current="true"] .section-rail__label {
  opacity: 1;
  transform: translateX(0);
  color: var(--color-ink);
}

@media (max-width: 1100px) {
  .section-rail {
    display: none;
  }
}
.case-study-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: rgba(20, 18, 15, 0.6);
  opacity: 0;
  transition: opacity var(--duration-base) ease;
}

.case-study-overlay.is-open {
  opacity: 1;
}

.case-study-modal {
  position: relative;
  width: min(880px, 100%);
  max-height: min(86vh, 900px);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  transform: translateY(16px) scale(0.98);
  transition: transform var(--duration-base) var(--ease-out);
  overflow: hidden;
}

.case-study-overlay.is-open .case-study-modal {
  transform: translateY(0) scale(1);
}

.case-study-modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 2;
  width: 2.4rem;
  height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: 1.3rem;
  line-height: 1;
  transition: border-color var(--duration-fast) ease;
}

.case-study-modal__close:hover {
  border-color: var(--color-ink);
}

.case-study-modal__scroll {
  max-height: min(86vh, 900px);
  overflow-y: auto;
  padding: var(--space-8);
}

.case-study-modal__title {
  margin: var(--space-2) 0 0;
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  padding-right: var(--space-8);
}

.case-study-section {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-line);
}

.case-study-section__label {
  margin: 0 0 var(--space-3);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-study-section__text {
  margin: 0;
  max-width: 700px;
  color: var(--color-muted);
  font-size: var(--text-base);
  line-height: 1.75;
}

.case-study-signal .case-study-section__text strong {
  color: var(--color-ink);
}

@media (max-width: 640px) {
  .case-study-overlay {
    padding: var(--space-3);
  }

  .case-study-modal__scroll {
    padding: var(--space-6) var(--space-5);
  }
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  flex-shrink: 0;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-ink);
  transition:
    border-color var(--duration-fast) ease,
    transform var(--duration-fast) var(--ease-out);
}

.theme-toggle:hover {
  border-color: var(--color-ink);
  transform: translateY(-1px);
}

.theme-toggle__icon--moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__icon--sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle__icon--moon {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  .theme-toggle:hover {
    transform: none;
  }
}
.site-nav__mobile {
  display: none;
}

.site-nav__mobile details {
  position: relative;
}

.site-nav__mobile summary {
  list-style: none;
  cursor: pointer;
  min-height: 2.6rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--text-sm);
  font-weight: 700;
}

.site-nav__mobile summary::-webkit-details-marker {
  display: none;
}

.site-nav__mobile-links {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 0;
  z-index: 20;
  display: grid;
  min-width: 180px;
  padding: 0.45rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 16px 40px rgba(37, 34, 30, 0.10);
}

.site-nav__mobile-links a {
  padding: 0.75rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
}

.site-nav__mobile-links a:hover {
  background: var(--color-surface-alt);
  color: var(--color-ink);
}

@media (max-width: 800px) {
  .site-nav__mobile {
    display: block;
    justify-self: end;
    margin-right: 0.5rem;
  }

  .site-nav {
    grid-template-columns: auto 1fr auto;
  }
}

@media (max-width: 520px) {
  .site-nav__cta {
    display: none;
  }

  .site-nav__mobile {
    margin-right: 0;
  }
}
/* =========================================
   COMMAND PALETTE
   ========================================= */

.command-palette {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: min(12vh, 110px) var(--space-4);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--duration-fast) ease,
    visibility var(--duration-fast) ease;
}

.command-palette.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.command-palette__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 18, 15, 0.58);
  backdrop-filter: blur(5px);
}

.command-palette__modal {
  position: relative;
  width: min(680px, 100%);
  max-height: min(650px, 78vh);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.25);
  transform: translateY(-10px) scale(0.98);
  transition: transform var(--duration-base) var(--ease-out);
}

.command-palette.is-open .command-palette__modal {
  transform: translateY(0) scale(1);
}

.command-palette__header {
  border-bottom: 1px solid var(--color-line);
}

.command-palette__search {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 4.2rem;
  padding: 0 var(--space-5);
}

.command-palette__search-icon {
  flex-shrink: 0;
  color: var(--color-muted);
  font-size: 1.5rem;
  line-height: 1;
}

.command-palette__search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--color-ink);
  font-family: inherit;
  font-size: var(--text-base);
}

.command-palette__search input::placeholder {
  color: var(--color-muted);
}

.command-palette__search kbd,
.command-palette__footer kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.8rem;
  min-height: 1.5rem;
  padding: 0 0.35rem;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: var(--color-surface-alt);
  color: var(--color-muted);
  font-family: inherit;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.command-palette__hint {
  padding: 0 var(--space-5) 10px;
  color: var(--color-muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.command-palette__results {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.command-palette__item {
  width: 100%;
  display: grid;
  grid-template-columns: 2.2rem 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-ink);
  text-align: left;
  cursor: pointer;
  transition:
    background var(--duration-fast) ease,
    border-color var(--duration-fast) ease;
}

.command-palette__item:hover,
.command-palette__item.is-active {
  border-color: var(--color-line);
  background: var(--color-surface-alt);
}

.command-palette__item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 800;
}

.command-palette__item-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.command-palette__item-content strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--text-sm);
}

.command-palette__item-content small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-muted);
  font-size: 11px;
}

.command-palette__item-type {
  color: var(--color-muted);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.command-palette__empty {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--color-muted);
  text-align: center;
}

.command-palette__empty strong {
  color: var(--color-ink);
  font-size: var(--text-sm);
}

.command-palette__empty span {
  font-size: 12px;
}

.command-palette__footer {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 10px var(--space-5);
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 10px;
}

.command-palette__footer span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

body.command-palette-open {
  overflow: hidden;
}

@media (max-width: 600px) {
  .command-palette {
    padding: 5vh var(--space-3);
  }

  .command-palette__modal {
    max-height: 85vh;
  }

  .command-palette__search {
    padding-inline: var(--space-4);
  }

  .command-palette__hint {
    padding-inline: var(--space-4);
  }

  .command-palette__item {
    grid-template-columns: 2rem 1fr;
  }

  .command-palette__item-type {
    display: none;
  }

  .command-palette__footer {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .command-palette,
  .command-palette__modal {
    transition: none;
  }
}