/* Reusable UI components */

/* ============ Eyebrow / section label ============ */
.eyebrow {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-200);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand);
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-accent);
  margin-bottom: var(--space-3);
}

.eyebrow--on-dark {
  color: rgba(255, 255, 255, 0.85);
}

.eyebrow--on-dark::before {
  background: rgba(255, 255, 255, 0.55);
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85em 1.6em;
  font-size: var(--fs-300);
  font-weight: 600;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  min-height: 44px;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--color-brand);
  color: #fff;
  border-color: var(--color-brand);
}

.btn--primary:hover {
  background: var(--navy-900);
  border-color: var(--navy-900);
}

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

.btn--ghost:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

.btn--on-dark {
  background: #fff;
  color: var(--color-brand-dark);
  border-color: #fff;
}

.btn--on-dark:hover {
  background: var(--accent-100);
  border-color: var(--accent-100);
}

.btn--ghost-on-dark {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.btn--ghost-on-dark:hover {
  border-color: #fff;
}

.btn--sm {
  padding: 0.6em 1.2em;
  font-size: var(--fs-300);
}

/* Text link with animated underline / arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--color-brand);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 2px;
  transition: border-color var(--dur-fast) var(--ease-out), gap var(--dur-fast) var(--ease-out);
}

.link-arrow svg {
  width: 14px;
  height: 14px;
  transition: transform var(--dur-fast) var(--ease-out);
}

.link-arrow:hover {
  border-color: var(--color-brand);
  gap: var(--space-3);
}

.link-arrow:hover svg {
  transform: translateX(2px);
}

/* ============ Site header / nav ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--dur-med) var(--ease-out);
}

/* Blur lives on a pseudo-element, not .site-header itself — filter/backdrop-filter
   on an ancestor becomes the containing block for position:fixed descendants,
   which would hijack the mobile nav overlay's fixed positioning. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
}

.brand__logo {
  height: 64px;
  width: auto;
  display: block;
}

@media (max-width: 480px) {
  .brand__logo {
    height: 46px;
  }
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-7);
}

.nav__links a {
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--color-text-soft);
  position: relative;
  padding-block: 4px;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--color-brand);
}

.nav__links a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 2px;
  background: var(--color-accent);
}

.nav__cta {
  display: flex;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-brand-dark);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}

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

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

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

@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--space-7) var(--container-pad);
    gap: var(--space-8);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--dur-med) var(--ease-out),
      transform var(--dur-med) var(--ease-out),
      visibility var(--dur-med);
    overflow-y: auto;
  }

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

  .nav__links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .nav__links a {
    font-size: var(--fs-600);
    padding-block: var(--space-2);
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav__cta .btn {
    width: 100%;
    min-height: 48px;
  }
}

/* ============ Cards ============ */
.card {
  background: var(--paper-000);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  position: relative;
  transition: border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--ink-300);
  transform: translateY(-2px);
}

.service-card__icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-brand);
  margin-bottom: var(--space-6);
}

.service-card__icon svg {
  width: 30px;
  height: 30px;
}

.service-card h3 {
  margin-bottom: var(--space-3);
  font-size: var(--fs-600);
}

.service-card p {
  margin-bottom: var(--space-5);
}

/* ============ Stat / metric strip ============ */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.stat-strip--2 {
  grid-template-columns: repeat(2, 1fr);
}

.stat-strip--on-dark {
  border-color: rgba(255, 255, 255, 0.18);
}

.stat {
  padding: var(--space-6);
  text-align: left;
  border-left: 1px solid var(--color-border);
}

.stat:first-child {
  border-left: none;
}

.stat-strip--on-dark .stat {
  border-left-color: rgba(255, 255, 255, 0.18);
}

.stat__value {
  font-family: var(--font-mono);
  font-size: var(--fs-700);
  font-weight: 600;
  color: var(--color-brand);
  display: block;
  margin-bottom: var(--space-2);
}

.stat-strip--on-dark .stat__value {
  color: #fff;
}

.stat__value--text {
  font-family: var(--font-heading);
  font-size: var(--fs-600);
  word-break: break-word;
}

.stat__value--text:is(a):hover {
  color: var(--accent-500);
}

.stat__label {
  font-size: var(--fs-300);
  color: var(--color-text-soft);
}

.stat-strip--on-dark .stat__label {
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 640px) {
  .stat-strip {
    grid-template-columns: 1fr;
  }
  .stat {
    border-left: none;
  }
  .stat:not(:first-child) {
    border-top: 1px solid var(--color-border);
  }
  .stat-strip--on-dark .stat:not(:first-child) {
    border-top-color: rgba(255, 255, 255, 0.18);
  }
}

/* ============ Process steps ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.step {
  padding-top: var(--space-5);
  border-top: 2px solid var(--color-border);
  position: relative;
}

.step__number {
  font-family: var(--font-heading);
  font-size: var(--fs-300);
  color: var(--ink-300);
  font-weight: 700;
  display: block;
  margin-bottom: var(--space-4);
}

.step h3 {
  font-size: var(--fs-600);
  margin-bottom: var(--space-3);
}

@media (max-width: 1024px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

/* ============ Work / case study ============ */
.work-item {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.work-item:first-of-type {
  border-top: none;
  padding-top: 0;
}

.work-item__media {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--paper-050);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.work-item__media span {
  font-family: var(--font-sans);
  font-size: var(--fs-300);
  font-weight: 500;
  color: var(--ink-300);
}

.work-item__tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  margin-bottom: var(--space-4);
}

.tag {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--color-text-soft);
}

.tag:not(:last-child)::after {
  content: "\2013";
  margin-left: var(--space-3);
  color: var(--line-200);
}

.work-item h3 {
  margin-bottom: var(--space-4);
}

.work-item p {
  margin-bottom: var(--space-5);
}

@media (max-width: 1024px) {
  .work-item {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .work-item__media {
    order: -1;
  }
}

@media (max-width: 640px) {
  .work-item {
    padding-block: var(--space-6);
  }
}

/* ============ About teaser ============ */
.about-teaser {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-9);
  align-items: center;
}

.about-teaser__portrait {
  aspect-ratio: 4 / 5;
  max-width: 380px;
  border-radius: var(--radius-md);
  background: var(--navy-900);
  position: relative;
  overflow: hidden;
}

.about-teaser__portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 1024px) {
  .about-teaser {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .about-teaser__portrait {
    max-width: 320px;
  }
}

/* ============ Footer ============ */
.site-footer {
  background: var(--color-brand);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-8) var(--space-6);
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-7);
  flex-wrap: wrap;
  padding-bottom: var(--space-7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: inline-flex;
}

.footer-brand__logo {
  height: 84px;
  width: auto;
  display: block;
}

.footer-tagline {
  max-width: 320px;
  font-size: var(--fs-300);
  color: rgba(255, 255, 255, 0.55);
  margin-top: var(--space-4);
}

.footer-links {
  display: flex;
  gap: var(--space-9);
  flex-wrap: wrap;
}

.footer-links h4 {
  font-family: var(--font-heading);
  font-size: var(--fs-200);
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--fs-300);
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--dur-fast) var(--ease-out);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--fs-300);
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
}

@media (max-width: 640px) {
  .footer-top {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .footer-links {
    gap: var(--space-7);
    justify-content: center;
  }
}

/* ============ Page header (About page) ============ */
.page-header {
  padding-block: var(--space-8) var(--space-7);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

@media (max-width: 640px) {
  .page-header {
    padding-block: var(--space-7) var(--space-6);
  }
}

.page-header h1 {
  margin-top: var(--space-4);
  max-width: 720px;
}

.page-header p {
  margin-top: var(--space-5);
  max-width: 560px;
  font-size: var(--fs-500);
  color: var(--color-text-soft);
}

/* ============ Bio / credentials list ============ */
.credential-list {
  border-top: 1px solid var(--color-border);
}

.credential-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.credential-item__period {
  font-family: var(--font-mono);
  font-size: var(--fs-300);
  color: var(--color-text-soft);
}

.credential-item h4 {
  margin-bottom: var(--space-2);
}

@media (max-width: 640px) {
  .credential-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

/* ============ Values grid (About page) ============ */
.value-item {
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-border);
}

.value-item h3 {
  margin-bottom: var(--space-3);
}

.value-item__number {
  font-family: var(--font-heading);
  color: var(--ink-300);
  font-size: var(--fs-300);
  font-weight: 700;
  display: block;
  margin-bottom: var(--space-3);
}