/* ==========================================================================
   Tokens
   ========================================================================== */

:root {
  /* Color */
  --color-black: #000000;
  --color-white: #ffffff;
  --color-bg: #f3f1ec;
  --color-accent: #f5a800;
  --color-placeholder: #d9d9d9;

  /* Type */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --fs-base: 1rem;    /* 16px */
  --fs-md: 1.5rem;    /* 24px */
  --fs-lg: 2.5rem;    /* 40px */
  --fs-xl: 3rem;      /* 48px */

  /* Radius */
  --radius-sm: 10px;
  --radius-lg: 24px;

  /* Spacing scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-6: 3rem;
  --space-8: 4rem;

  /* Layout */
  --container-max: 1180px;
  --container-pad: 1.5rem;
}

/* ==========================================================================
   Base
   ========================================================================== */

@font-face {
  font-family: "Inter";
  src: url("../assets/fonts/inter-latin.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("../assets/fonts/inter-latin.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.5;
  color: var(--color-black);
  background: var(--color-bg);
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font: inherit;
}

/* ==========================================================================
   Page-load reveal (cover content fades and rises into place on load)
   ========================================================================== */

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  /* backwards (not both/forwards): holds the hidden state during the delay,
     but releases the element back to normal rules once the animation ends —
     otherwise the animation's lingering transform/opacity would outrank and
     block a later :hover transition on the same properties (e.g. .card's
     hover-lift). */
  animation: reveal-up 0.9s cubic-bezier(0.22, 1, 0.36, 1) backwards;
  animation-delay: 0.25s;
}

.reveal--delay-1 {
  animation-delay: 0.37s;
}

.reveal--delay-2 {
  animation-delay: 0.49s;
}

.reveal--delay-3 {
  animation-delay: 0.61s;
}

.reveal--delay-4 {
  animation-delay: 0.73s;
}

.reveal--delay-5 {
  animation-delay: 0.85s;
}

.reveal--delay-6 {
  animation-delay: 0.97s;
}

.reveal--delay-7 {
  animation-delay: 1.09s;
}

.reveal--delay-8 {
  animation-delay: 1.21s;
}

/* Auto-staggers any number of direct .card children by position, so grids
   don't need per-card delay classes in the HTML. --reveal-start sets when
   the first card fires; defaults to one step after a lone .reveal element
   (e.g. a page title), so a title followed directly by a grid never fires
   both at once. Override --reveal-start inline to slot a grid in later,
   continuing an existing stagger sequence (e.g. after a section heading). */
.card-grid--stagger {
  --reveal-start: 0.37s;
}

.card-grid--stagger > .card:nth-child(1) { animation-delay: calc(var(--reveal-start) + 0 * 0.12s); }
.card-grid--stagger > .card:nth-child(2) { animation-delay: calc(var(--reveal-start) + 1 * 0.12s); }
.card-grid--stagger > .card:nth-child(3) { animation-delay: calc(var(--reveal-start) + 2 * 0.12s); }
.card-grid--stagger > .card:nth-child(4) { animation-delay: calc(var(--reveal-start) + 3 * 0.12s); }
.card-grid--stagger > .card:nth-child(5) { animation-delay: calc(var(--reveal-start) + 4 * 0.12s); }
.card-grid--stagger > .card:nth-child(6) { animation-delay: calc(var(--reveal-start) + 5 * 0.12s); }
.card-grid--stagger > .card:nth-child(7) { animation-delay: calc(var(--reveal-start) + 6 * 0.12s); }
.card-grid--stagger > .card:nth-child(8) { animation-delay: calc(var(--reveal-start) + 7 * 0.12s); }
.card-grid--stagger > .card:nth-child(9) { animation-delay: calc(var(--reveal-start) + 8 * 0.12s); }
.card-grid--stagger > .card:nth-child(10) { animation-delay: calc(var(--reveal-start) + 9 * 0.12s); }
.card-grid--stagger > .card:nth-child(11) { animation-delay: calc(var(--reveal-start) + 10 * 0.12s); }
.card-grid--stagger > .card:nth-child(12) { animation-delay: calc(var(--reveal-start) + 11 * 0.12s); }
.card-grid--stagger > .card:nth-child(n + 13) { animation-delay: calc(var(--reveal-start) + 11 * 0.12s); }

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

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.divider {
  border: none;
  border-top: 1px solid var(--color-black);
  max-width: calc(var(--container-max) - 2 * var(--container-pad));
  margin: var(--space-4) auto;
}

/* Hero */
.hero {
  display: flex;
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-4);
  flex-wrap: wrap;
}

.hero__media {
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.hero__photo {
  width: 343px;
  height: 343px;
  object-fit: cover;
  object-position: center 25%;
  transition: transform 0.4s ease;
}

.hero__media:hover .hero__photo {
  transform: scale(1.08);
}

.hero__content {
  flex: 1 1 320px;
}

.hero__eyebrow {
  margin-bottom: var(--space-2);
}

.hero__heading {
  font-size: var(--fs-xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

.highlight {
  background: var(--color-accent);
  padding: 0 0.2em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* Contact / value-prop row */
.contact-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  justify-items: center;
  gap: var(--space-4);
  padding-block: var(--space-4);
}

/* Section shell shared by Case Studies / UX Resources / Writing */
.section {
  padding-block: var(--space-4);
}

#case-studies {
  display: none;
}

.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--fs-lg);
  font-weight: 400;
}

.placeholder-box {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 108px;
  background: var(--color-placeholder);
  border-radius: var(--radius-lg);
}

.placeholder-box__text {
  font-size: var(--fs-md);
  font-weight: 700;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (max-width: 900px) {
  .hero {
    flex-direction: column;
  }

  .hero__media {
    width: 100%;
  }

  .hero__photo {
    width: 100%;
    height: 420px;
  }

  .hero__content {
    /* Reset the 320px flex-basis — it's a width minimum for the row layout, but would otherwise apply to height once .hero becomes a column. */
    flex: 1 1 auto;
  }

  .contact-row,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .card__media {
    height: 420px;
  }
}

/* ==========================================================================
   Component: Nav
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding-block: var(--space-3);
  background: var(--color-bg);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-header__brand {
  font-size: var(--fs-md);
  font-weight: 700;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.site-header__brand:hover {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__links {
  display: flex;
  gap: var(--space-4);
}

.nav__links a {
  position: relative;
  display: inline-block;
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

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

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-placeholder);
  font-size: 0.875rem;
  font-weight: 700;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.social-icon:hover {
  background: var(--color-accent);
  transform: scale(1.15);
}

.nav-toggle {
  display: none;
  position: relative;
  /* content-box (overriding the global border-box reset) so width/height
     describe just the icon; padding adds click-target space around it
     without eating into that box, which is what the absolutely-positioned
     spans below are measured against. */
  box-sizing: content-box;
  width: 22px;
  height: 16px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  position: absolute;
  left: 0.5rem;
  width: 22px;
  height: 2px;
  background: var(--color-black);
  transition: transform 0.25s ease, opacity 0.25s ease, top 0.25s ease;
}

.nav-toggle span:nth-child(1) {
  top: 0.5rem;
}

.nav-toggle span:nth-child(2) {
  top: calc(0.5rem + 7px);
}

.nav-toggle span:nth-child(3) {
  top: calc(0.5rem + 14px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  top: calc(0.5rem + 7px);
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  top: calc(0.5rem + 7px);
  transform: rotate(-45deg);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) var(--container-pad);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-placeholder);
  }

  .nav.is-open {
    display: flex;
  }

  .nav__links {
    flex-direction: column;
    gap: var(--space-2);
  }
}

/* ==========================================================================
   Component: Button
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: var(--fs-base);
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn--dark {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.btn--dark:hover {
  background: var(--color-accent);
  color: var(--color-black);
  border-color: var(--color-accent);
}

/* ==========================================================================
   Component: Card (shared by UX Resource cards and Writing/article cards)
   ========================================================================== */

.card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 0.5px solid var(--color-placeholder);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
}

.card__media {
  width: 100%;
  height: 343px;
  object-fit: cover;
  border-radius: 0;
}

/* Used where a card has no real image yet (e.g. UX Resource cards). */
.card__media--placeholder {
  background: var(--color-placeholder);
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
}

.card__title {
  font-size: var(--fs-md);
  font-weight: 700;
}

.card--article .card__read-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  margin-top: var(--space-1);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: var(--color-placeholder);
  font-size: 0.875rem;
  font-weight: 700;
  transition: background-color 0.2s ease;
}

.card--article:hover .card__read-link {
  background: var(--color-accent);
}

/* ==========================================================================
   Component: Contact item
   ========================================================================== */

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.contact-item__icon {
  width: 27px;
  height: 27px;
  flex-shrink: 0;
}

.contact-item__title {
  margin-bottom: 0.25rem;
  font-weight: 700;
}

.contact-item__text {
  max-width: 90%;
}

/* ==========================================================================
   Component: Footer
   ========================================================================== */

.site-footer {
  margin-top: var(--space-8);
  padding-block: var(--space-8);
  background: var(--color-black);
  color: var(--color-white);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-footer__intro h2 {
  margin-bottom: var(--space-2);
  font-size: var(--fs-lg);
  font-weight: 400;
}

.site-footer__intro p {
  max-width: 24rem;
}

.site-footer__links {
  display: flex;
  gap: var(--space-6);
}

.site-footer__links li + li {
  margin-top: var(--space-1);
}

.site-footer__links a {
  opacity: 0.9;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.site-footer__links a:hover {
  opacity: 1;
  color: var(--color-accent);
}

/* ==========================================================================
   Component: Page title (centered heading used at the top of inner pages)
   ========================================================================== */

.page-title {
  padding-block: var(--space-3);
  font-size: var(--fs-xl);
  font-weight: 700;
  text-align: center;
}

/* ==========================================================================
   Component: Badge (standalone accent callout, e.g. a headline tag)
   ========================================================================== */

.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: var(--fs-md);
  font-weight: 700;
}

/* ==========================================================================
   Prose (spacing between stacked paragraphs of body copy)
   ========================================================================== */

.prose p + p {
  margin-top: var(--space-3);
}

/* ==========================================================================
   Component: Experience list
   ========================================================================== */

.experience-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.experience-item {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.experience-item__header {
  display: flex;
  align-items: center;
  flex: 0 0 520px;
  gap: var(--space-3);
  white-space: nowrap;
}

.experience-item__thumb {
  width: 89px;
  height: 89px;
  flex-shrink: 0;
  background: var(--color-placeholder);
  border-radius: var(--radius-sm);
}

.experience-item__role {
  margin-bottom: 0.25rem;
  font-size: var(--fs-md);
  font-weight: 700;
}

.experience-item__text {
  flex: 1;
}

@media (max-width: 900px) {
  .experience-item {
    flex-direction: column;
    gap: var(--space-2);
  }

  .experience-item__header {
    flex-direction: column;
    align-items: flex-start;
    flex-basis: auto;
    white-space: normal;
  }
}

.section--centered {
  text-align: center;
}

/* ==========================================================================
   Component: Article (individual Writing entry)
   ========================================================================== */

.article-cover {
  width: 100%;
  max-height: 500px;
  /* Matches .hero's own top padding so the cover sits the same distance
     below the nav as the home page photo does. */
  margin-top: var(--space-4);
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.article-title {
  margin-bottom: var(--space-2);
  font-size: var(--fs-xl);
  font-weight: 700;
}

.article-deck {
  margin-bottom: var(--space-4);
  font-size: var(--fs-md);
}

.article-body h2 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
  font-size: var(--fs-lg);
  font-weight: 700;
}

.article-body h3 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-1);
  font-size: var(--fs-md);
  font-weight: 700;
}

.article-figure {
  /* Browsers default <figure> to margin: 1em 40px — reset the sides so the
     image spans the full article column instead of inset by 40px each way. */
  margin-block: var(--space-4);
  margin-inline: 0;
}

.article-figure__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--color-placeholder);
  border-radius: var(--radius-lg);
}

.article-figure figcaption {
  margin-top: var(--space-1);
  font-size: 0.875rem;
  font-style: italic;
  opacity: 0.7;
}

/* The global reset strips list styling for nav use (ul{list-style:none}) —
   restore real bullets/numbers/indentation for actual body content. */
.article-body a {
  text-decoration: underline;
  transition: color 0.2s ease;
}

.article-body a:hover {
  color: var(--color-accent);
}

.article-body ul,
.article-body ol {
  margin: var(--space-3) 0;
  padding-left: 1.5rem;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body ul ul,
.article-body ol ul {
  list-style: circle;
  margin: var(--space-1) 0 0;
}

.article-body li + li {
  margin-top: var(--space-1);
}

.article-body blockquote {
  margin: var(--space-4) 0;
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-black);
  font-size: var(--fs-md);
  font-style: italic;
}

.article-body blockquote cite {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--fs-base);
  font-style: normal;
  font-weight: 700;
}

.article-table {
  width: 100%;
  margin: var(--space-4) 0;
  border-collapse: collapse;
  font-size: var(--fs-base);
}

.article-table th,
.article-table td {
  padding: var(--space-2);
  border: 1px solid var(--color-placeholder);
  text-align: left;
  vertical-align: top;
}

.article-table th {
  background: var(--color-placeholder);
  font-weight: 700;
}

.article-citations {
  font-size: 0.9rem;
}

.article-body sup {
  font-style: normal;
}

.article-body sup a {
  text-decoration: none;
}