/* 1. Design tokens */
:root {
  --color-ink: #0a0f1f;
  --color-ink-2: #141a2e;
  --color-ink-3: #1e2540;
  --color-paper: #fafaf7;
  --color-paper-2: #f2f1ec;
  --color-paper-3: #e8e6dd;
  --color-violet: #5b2fee;
  --color-violet-light: #a89bf7;
  --color-pink: #f0298a;
  --color-pink-action: #d42477;
  --color-pink-action-hover: #b81c63;
  --color-text: #0a0f1f;
  --color-text-muted: #4a5170;
  --color-text-subtle: #656d86;
  --color-rule: #e5e3da;
  --color-rule-strong: #d8d5ca;
  --color-on-dark: rgba(255, 255, 255, 0.96);
  --color-on-dark-muted: rgba(255, 255, 255, 0.62);
  --color-on-dark-subtle: rgba(255, 255, 255, 0.5);
  --color-on-dark-rule: rgba(255, 255, 255, 0.1);
  --color-error: #f87171;

  --font-sans: "Google Sans Flex", system-ui, sans-serif;
  --font-mono: "Google Sans Code", ui-monospace, monospace;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 3.5rem;
  --space-8: 5rem;
  --space-9: 7.5rem;
  --space-10: 8.75rem;

  --radius-sm: 0.5rem;
  --radius-card: 0.75rem;
  --radius-pill: 100px;
  --shadow-dialog: 0 0.5rem 4rem rgba(10, 15, 31, 0.28);
}

/* 2. Reset and global base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

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

/* 3. Typography */
.text-accent {
  color: var(--color-violet);
  font-style: italic;
  font-weight: 500;
}

.text-label {
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.text-label--accent {
  color: var(--color-violet);
}

.text-label--on-dark {
  color: var(--color-on-dark-subtle);
}

.section-heading {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-7);
}

.section-heading--dark {
  color: var(--color-on-dark);
}

.section-heading--wide {
  margin-bottom: var(--space-8);
}

.section-heading__title {
  color: inherit;
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 0.98;
  text-wrap: balance;
}

.section-heading__title--large {
  color: var(--color-ink);
  font-size: clamp(36px, 6vw, 80px);
  letter-spacing: -0.04em;
  line-height: 0.95;
}

/* 4. Spacing */
.flow > * + * {
  margin-top: var(--space-4);
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

/* 5. Layout utilities */
.wrapper {
  margin-inline: auto;
  max-width: 87.5rem;
  padding-inline: var(--space-4);
}

.section {
  padding-block: var(--space-8);
}

.section--light {
  background: var(--color-paper);
  color: var(--color-text);
}

.section--surface {
  background: var(--color-paper-2);
  color: var(--color-text);
}

.section--dark {
  background: var(--color-ink);
  color: var(--color-on-dark);
}

.layout-split {
  display: grid;
  gap: var(--space-6);
}

.card-grid {
  display: grid;
  gap: 0;
}

.card-grid--work {
  border-top: 1px solid var(--color-on-dark-rule);
}

/* 6. Components */
.skip-link {
  position: absolute;
  left: 0;
  top: -100%;
  z-index: 9999;
  border-radius: 0 0 var(--radius-sm) 0;
  background: var(--color-violet);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
}

.skip-link:focus {
  top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid transparent;
  background: rgba(250, 250, 247, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 200ms ease;
}

.site-header--scrolled {
  border-bottom-color: var(--color-rule);
}

.site-header__inner {
  display: grid;
  gap: var(--space-2);
  padding-block: var(--space-3);
}

.wordmark {
  color: var(--color-ink);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.wordmark__dot {
  color: var(--color-pink);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin-left: -0.875rem;
}

.site-nav__link {
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  display: inline-flex;
  font-size: 14px;
  font-weight: 500;
  padding: var(--space-1) 0.875rem;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease;
}

.site-nav__link:hover {
  color: var(--color-ink);
}

.site-nav__link--cta {
  background: var(--color-ink);
  color: var(--color-paper);
}

.site-nav__link--cta:hover {
  background: var(--color-ink-2);
  color: var(--color-paper);
}

.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  display: inline-flex;
  font-size: 14px;
  font-weight: 500;
  gap: 0.625rem;
  justify-content: center;
  letter-spacing: -0.005em;
  line-height: 1.2;
  min-height: 3rem;
  padding: 0.875rem 1.375rem;
  text-decoration: none;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease, transform 200ms ease;
  white-space: nowrap;
  width: fit-content;
}

.button--primary {
  background: var(--color-ink);
  color: var(--color-paper);
}

.button--primary:hover {
  background: var(--color-ink-2);
  transform: translateY(-1px);
}

.button--ghost {
  border-color: var(--color-rule-strong);
  color: var(--color-ink);
}

.button--ghost:hover {
  border-color: var(--color-ink);
}

.button--action {
  background: var(--color-pink-action);
  color: var(--color-on-dark);
}

.button--action:hover {
  background: var(--color-pink-action-hover);
  transform: translateY(-1px);
}

.button__icon {
  height: 0.875rem;
  transition: transform 200ms ease;
  width: 0.875rem;
}

.button:hover .button__icon {
  transform: translateX(3px);
}

.tag {
  align-items: center;
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  gap: var(--space-1);
  letter-spacing: 0.06em;
  padding: 0.375rem 0.75rem 0.375rem 0.625rem;
  text-transform: uppercase;
}

.tag::before {
  background: var(--color-violet);
  border-radius: 50%;
  content: "";
  height: 0.375rem;
  width: 0.375rem;
}

.tag--on-dark {
  border-color: var(--color-on-dark-rule);
  color: var(--color-on-dark-muted);
}

.tag--on-dark::before {
  background: var(--color-violet-light);
}

.work-card {
  border-bottom: 1px solid var(--color-on-dark-rule);
  color: var(--color-on-dark);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: background 200ms ease;
}

.work-card:hover {
  background: var(--color-ink-2);
}

.work-card__image {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  margin: var(--space-3);
  object-fit: cover;
  width: calc(100% - 2rem);
}

.work-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.625rem;
  padding: var(--space-4);
}

.work-card__meta {
  align-items: center;
  display: flex;
  gap: var(--space-2);
  margin-bottom: 0.375rem;
}

.work-card__number {
  color: var(--color-on-dark-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.work-card__rule {
  background: var(--color-on-dark-rule);
  flex: 1;
  height: 1px;
}

.work-card__title {
  color: var(--color-on-dark);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.work-card__description {
  color: var(--color-on-dark-muted);
  font-size: 13px;
}

.work-card__footer {
  align-items: center;
  display: flex;
  gap: var(--space-2);
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-3);
}

.work-card__icon {
  color: var(--color-on-dark-subtle);
  transition: color 200ms ease;
}

.work-card:hover .work-card__icon {
  color: var(--color-violet-light);
}

.service-list {
  border-top: 1px solid var(--color-rule-strong);
  list-style: none;
}

.service-row {
  align-items: center;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--color-rule-strong);
  color: inherit;
  display: grid;
  gap: var(--space-2);
  grid-template-columns: 1fr 2.25rem;
  padding: var(--space-4) 0;
  text-align: left;
  width: 100%;
}

.service-row__number {
  color: var(--color-text-subtle);
  display: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.service-row__title {
  color: var(--color-ink);
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.service-row__short,
.service-row__copy {
  display: none;
}

.service-row__icon {
  align-items: center;
  align-self: center;
  border: 1px solid var(--color-rule-strong);
  border-radius: 50%;
  color: var(--color-text-subtle);
  display: inline-flex;
  grid-column: 2;
  grid-row: 1;
  height: 2.25rem;
  justify-content: center;
  justify-self: end;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
  width: 2.25rem;
}

.service-row:hover .service-row__icon {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-paper);
}

.person-card {
  align-items: center;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-card);
  display: flex;
  gap: var(--space-3);
  padding: 1.125rem 1.25rem;
}

.person-card__image {
  border-radius: 50%;
  flex: 0 0 5rem;
  height: 5rem;
  object-fit: cover;
  object-position: center top;
  width: 5rem;
}

.person-card__name {
  color: var(--color-ink);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.person-card__role {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  margin-top: 0.1875rem;
}

.person-card__link {
  color: var(--color-violet);
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  margin-top: var(--space-1);
  text-decoration: none;
}

.person-card__link:hover {
  color: var(--color-ink);
}

.form-field {
  display: grid;
  gap: var(--space-1);
}

.form-field__label {
  color: var(--color-on-dark-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.form-field__control {
  background: transparent;
  border: 1px solid var(--color-on-dark-rule);
  border-radius: var(--radius-sm);
  color: var(--color-on-dark);
  font-size: 15px;
  line-height: 1.5;
  min-height: 3rem;
  padding: 0.875rem 1rem;
  transition: border-color 200ms ease, box-shadow 200ms ease;
  width: 100%;
}

.form-field__control::placeholder {
  color: var(--color-on-dark-subtle);
}

.form-field__control:focus {
  border-color: var(--color-violet-light);
  box-shadow: 0 0 0 2px rgba(168, 155, 247, 0.25);
  outline: none;
}

.form-field__control--textarea {
  min-height: 7.5rem;
  resize: vertical;
}

.modal {
  border: 0;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-dialog);
  max-height: calc(100svh - 3rem);
  max-width: 41.25rem;
  overflow: auto;
  padding: 0;
  width: calc(100% - 2rem);
}

.modal::backdrop {
  background: rgba(10, 15, 31, 0.55);
  backdrop-filter: blur(6px);
}

.modal__inner {
  padding: var(--space-5) var(--space-4);
}

.modal__header {
  align-items: flex-start;
  border-bottom: 1px solid var(--color-rule);
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
}

.modal__title-group {
  display: grid;
  gap: var(--space-1);
}

.modal__eyebrow {
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.modal__title {
  color: var(--color-ink);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.modal__close {
  align-items: center;
  background: none;
  border: 1px solid var(--color-rule);
  border-radius: 50%;
  color: var(--color-text-muted);
  display: inline-flex;
  flex: 0 0 2.25rem;
  height: 2.25rem;
  justify-content: center;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
  width: 2.25rem;
}

.modal__close:hover {
  background: var(--color-paper-2);
  border-color: var(--color-rule-strong);
  color: var(--color-ink);
}

.modal__body {
  color: var(--color-text-muted);
  font-size: 15px;
  line-height: 1.75;
}

.modal__lead {
  color: var(--color-text);
  font-size: 17px;
  line-height: 1.6;
}

.modal__list-heading {
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  margin-top: var(--space-5);
  text-transform: uppercase;
}

.modal__list {
  display: grid;
  gap: var(--space-1) var(--space-5);
  list-style: none;
  margin-top: var(--space-2);
}

.modal__list-item {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.5;
  padding-left: 1.125rem;
  position: relative;
}

.modal__list-item::before {
  color: var(--color-violet);
  content: "—";
  font-family: var(--font-mono);
  font-size: 11px;
  left: 0;
  position: absolute;
  top: 0.0625rem;
}

/* 7. Page blocks / sections */
.hero {
  border-bottom: 1px solid var(--color-rule);
}

.hero__title {
  color: var(--color-ink);
  font-size: clamp(44px, 7.5vw, 90px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-wrap: balance;
}

.hero__lead {
  color: var(--color-text-muted);
  font-size: 19px;
  line-height: 1.55;
}

.hero__copy {
  color: var(--color-text-subtle);
  font-size: 15px;
  line-height: 1.65;
}

.logo-rail {
  border-bottom: 1px solid var(--color-rule);
  padding-block: var(--space-5);
}

.logo-rail__inner {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

.logo-rail__logo {
  flex: 0 1 auto;
  height: 1.25rem;
  width: auto;
}

.work {
  padding-bottom: var(--space-8);
}

.services {
  border-bottom: 1px solid var(--color-rule);
}

.about__label {
  border-bottom: 1px solid var(--color-rule);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
}

.about__title {
  color: var(--color-ink);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
  max-width: 68.75rem;
  text-wrap: balance;
}

.about__layout {
  border-top: 1px solid var(--color-rule);
  display: grid;
  gap: var(--space-6);
  padding-top: var(--space-6);
}

.about__copy {
  color: var(--color-text-muted);
  font-size: 17px;
  line-height: 1.65;
}

.people-grid {
  display: grid;
  gap: var(--space-2);
}

.contact__layout {
  display: grid;
  gap: var(--space-6);
}

.contact__main {
  color: var(--color-on-dark-muted);
  font-size: 17px;
  line-height: 1.6;
}

.address-card {
  display: grid;
  font-style: normal;
  gap: 1.25rem;
}

.address-card__text {
  color: var(--color-on-dark-muted);
  font-size: 17px;
  line-height: 1.7;
}

.contact-form {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.honeypot {
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  position: absolute;
}

.form-status {
  color: var(--color-on-dark-muted);
  font-size: 14px;
  line-height: 1.55;
  min-height: 1.25rem;
}

.form-status--success {
  color: var(--color-violet-light);
}

.form-status--error {
  color: var(--color-error);
}

.site-footer {
  background: var(--color-paper-2);
  border-top: 1px solid var(--color-rule);
  color: var(--color-text-subtle);
  font-family: var(--font-mono);
  font-size: 13px;
  padding-block: 1.75rem;
}

.site-footer__inner {
  display: grid;
  gap: 0.375rem;
}

/* 8. State, interaction, accessibility */
:focus-visible {
  outline: 2px solid var(--color-violet);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

/* 9. Responsive rules */
@media (min-width: 40rem) {
  .site-header__inner {
    align-items: center;
    display: flex;
    justify-content: space-between;
    min-height: 4.5rem;
    padding-block: 0;
  }

  .site-nav__list {
    margin-left: 0;
  }

  .card-grid--work,
  .people-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-card:nth-child(odd) {
    border-right: 1px solid var(--color-on-dark-rule);
  }

  .site-footer__inner {
    align-items: center;
    display: flex;
    justify-content: space-between;
  }
}

@media (min-width: 48rem) {
  .wrapper {
    padding-inline: var(--space-7);
  }

  .logo-rail__logo {
    height: 1.875rem;
  }

  .section {
    padding-block: var(--space-9);
  }

  .hero {
    min-height: calc(100vh - 11.625rem);
  }

  .service-row {
    grid-template-columns: 2.5rem 1fr 2.25rem;
    gap: var(--space-3);
  }

  .service-row__number {
    display: block;
  }

  .service-row__title {
    grid-column: 2;
  }

  .service-row__icon {
    grid-column: 3;
  }
}

@media (min-width: 56.25rem) {
  .hero {
    align-items: center;
    display: flex;
    height: calc(100vh - 11.125rem);
    min-height: 33rem;
    padding-block: clamp(3rem, 6vh, 5rem);
  }

  .hero > .wrapper {
    width: 100%;
  }

  .layout-split {
    align-items: center;
    grid-template-columns: 1.15fr 0.85fr;
    gap: var(--space-8);
  }

  .card-grid--work {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .work-card,
  .work-card:nth-child(odd) {
    border-right: 1px solid var(--color-on-dark-rule);
  }

  .work-card:nth-child(4n) {
    border-right: 0;
  }

  .service-row {
    grid-template-columns: 4rem 1.2fr 1fr 1.8fr 2.5rem;
    gap: var(--space-5);
    padding-block: 2.25rem;
    transition: padding-left 250ms ease;
  }

  .service-row:hover {
    padding-left: var(--space-3);
  }

  .service-row__title,
  .service-row__number,
  .service-row__short,
  .service-row__copy,
  .service-row__icon {
    grid-column: auto;
    grid-row: auto;
  }

  .service-row__short,
  .service-row__copy {
    display: block;
  }

  .service-row__short {
    color: var(--color-violet);
    font-size: 17px;
    font-style: italic;
    letter-spacing: -0.01em;
  }

  .service-row__copy {
    color: var(--color-text-muted);
    font-size: 14px;
    line-height: 1.6;
  }

  .service-row__icon {
    grid-column: auto;
  }

  .about__layout {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-8);
  }

  .about__copy {
    max-width: 28.75rem;
  }

  .contact__layout {
    align-items: start;
    grid-template-columns: 1fr 1.1fr;
    gap: 5rem;
  }

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

  .logo-rail__logo {
    height: 2.5rem;
  }

  .logo-rail__inner {
    justify-content: space-between;
  }

  .modal__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 75rem) {
  .section {
    padding-block: var(--space-10);
  }

  .hero {
    padding-block: clamp(3rem, 6vh, 5rem);
  }

  .work {
    padding-bottom: var(--space-8);
  }
}