/* ---------- Base reset ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-padding-top: 60px;
  scroll-behavior: smooth;
}

/* ---------- Layout ---------- */
main {
  margin: 0 auto;
  padding: 0;
}

section {
  margin-bottom: 60px;
}

/* ---------- Design tokens ---------- */
:root {
  --bg-primary: #FDFDFD;
  --text-primary: #0C0E12;
  --text-secondary: #4B5565;
  --brand: #4163FF;
  --border-primary: #0C0E12;
}

/* ---------- Typography ---------- */
body {
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

h1 {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 72px;
  line-height: 90px;
  font-weight: 400;
}

h2 {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 60px;
  line-height: 72px;
  font-weight: 400;
}

h3 {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 36px;
  line-height: 44px;
  font-weight: 400;
}

/* ---------- Navbar ---------- */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-primary);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
}

.nav-logo {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 14px;
  line-height: 20px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-link {
  font-size: 14px;
  line-height: 20px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-link:hover {
  text-decoration: underline;
}

/* ---------- Hero ---------- */
#hero {
  padding: 200px 24px 0px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 20px;
}

.hero-content {
  grid-column: span 8;
}

.hero-role {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  line-height: 32px;
  font-weight: 400;
  color: var(--brand);
  margin-bottom: 12px;
}

.hero-headline {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 60px;
  line-height: 72px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.hero-description {
  font-size: 20px;
  line-height: 28px;
  color: var(--text-primary);
}

/* ---------- Projects ---------- */
#projects {
  padding: 0 24px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 20px;
}

.project-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.project-thumbnail {
  width: 100%;
  background: #E5E7EB; /* temporary placeholder */
  aspect-ratio: 2.1/1;
  overflow: hidden;
}

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

.project-info {
  display: flex;
  justify-content: space-between;
  padding-top: 12px;
}

.project-title {
  font-size: 16px;
  line-height: 24px;
  color: var(--text-primary);
}

.project-card:hover .project-title {
  text-decoration: underline;
}

.project-status {
  font-size: 16px;
  line-height: 24px;
  color: var(--text-secondary);
}

/* ---------- Testimonials ---------- */
#testimonials {
  padding: 80px 24px 20px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-top: 1px solid var(--border-primary);
  padding-top: 20px;
  gap: 20px;
}

.testimonials-heading {
  font-weight: 600;
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quote-icon {
  width: 20px;
  height: auto;
  color: var(--brand);
}

.testimonial-text {
  color: var(--text-primary);
  font-weight: 700;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 20px;
}

.author-avatar {
  width: 100px;
  height: 100px;
  object-fit: cover;
}

.author-name {
  font-size: 14px;
  line-height: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.author-title {
  font-size: 14px;
  line-height: 20px;
  color: var(--text-secondary);
}

/* ---------- Contact ---------- */
#contact {
  padding: 0 24px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.contact-content {
  grid-column: 2;
}

.contact-heading {
  font-weight: 600;
  margin-bottom: 20px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-label {
  font-weight: 700;
  color: var(--text-primary);
}

.contact-link {
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.contact-link:hover {
  text-decoration: underline;
}

/* ---------- Case Study Hero ---------- */
.case-hero {
  padding: 250px 24px 0;
  margin-bottom: 60px;
}

.case-hero-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: baseline;
  margin-bottom: 60px;
}

.case-number {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 72px;
  line-height: 90px;
  font-weight: 600;
  color: var(--text-primary);
}

.case-intro {
  width: fit-content;
  display: inline-block;
}

.case-title {
  font-weight: 600;
  color: var(--text-primary);
}

.case-subtitle {
  width: 0;
  min-width: 100%;
  font-size: 18px;
  line-height: 28px;
  color: var(--text-secondary);
  margin-top: 16px;
}

.case-hero-image {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  background: #1E1B4B;
  overflow: hidden;
}

.case-hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- Case Study Metadata ---------- */
.case-metadata {
  padding: 0 24px;
  display: flex;
  justify-content: flex-end;
}

.metadata-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 40px;
}

.metadata-items {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.metadata-item {
  display: grid;
  grid-template-columns:72px 1fr;
  gap: 60px;
  border-top: 1px solid var(--border-primary);
  padding-top: 8px;
}

.metadata-item dt {
  font-size: 16px;
  line-height: 24px;
  color: var(--text-secondary);
}

.metadata-item dd {
  font-size: 16px;
  line-height: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

/* ---------- Case Study Section ---------- */
.case-section {
  margin: 120px 24px 0;
}

.case-section-heading {
  padding-top: 20px;
  margin-bottom: 60px;
  border-top: 1px solid var(--border-primary);
}

.case-section-heading h3 {
  font-weight: 600;
  color: var(--text-primary);
}

/* ---------- Case Study Blocks ---------- */
.case-section-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.case-text {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 40px;
}

.case-text-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.case-text p {
  font-weight: 500;
  color: var(--text-primary);
}

.case-label {
  font-weight: 700;
  color: var(--text-primary);
}

.case-heading {
  font-weight: 700;
  color: var(--text-primary);
}

.case-image {
  overflow: hidden;
}

.case-image img {
  width: 100%;
  height: auto;
  display: block;
}

.case-summary {
  font-weight: 700;
  color: var(--text-primary);
  max-width: 50%;
  margin-top: 40px;
}

/* Block: case-issue (text + image side by side) */
.case-issue {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

/* Block: case-solution (image left, text right) */
.case-solution {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 20px;
  align-items: start;
}

.case-solution p {
  font-weight: 700;
  color: var(--text-primary);
}

.case-solution-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ---------- Site Footer ---------- */
.site-footer {
  margin: 120px 24px 0;
  padding: 20px 0 20px;
  border-top: 1px solid var(--border-primary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 20px;
}

.footer-name {
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 16px;
  line-height: 24px;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-heading {
  font-size: 14px;
  line-height: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-links a {
  font-size: 14px;
  line-height: 20px;
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-copyright {
  font-size: 14px;
  line-height: 20px;
  color: var(--text-secondary);
  margin-top: 60px;
}

/* ---------- Minimal Footer ---------- */
.home-footer {
  margin: 120px 24px 0;
  padding: 60px 0 20px;
  border-top: 1px solid var(--border-primary);
}

.footer-text {
  font-size: 14px;
  line-height: 20px;
  color: var(--text-secondary);
}

/* ---------- About Page ---------- */
.text-brand {
  color: var(--brand);
}

#about-hero {
  padding: 120px 24px 0;
}

.about-hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  border-top: 1px solid var(--border-primary);
  padding-top: 20px;
}

.about-title {
  grid-column: span 4;
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 36px;
  line-height: 44px;
  font-weight: 600;
  color: var(--text-primary);
}

.about-content {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-content p {
  font-size: 16px;
  line-height: 24px;
  color: var(--text-primary);
}

.about-image {
  margin: 20px 0;
}

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

/* ---------- Clients Section ---------- */
#clients {
  padding: 80px 24px 0;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  border-top: 1px solid var(--border-primary);
  padding-top: 20px;
  align-items: start;
}

.clients-title {
  grid-column: span 4;
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 36px;
  line-height: 44px;
  font-weight: 600;
  color: var(--text-primary);
}

.clients-list {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
}

.client-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-primary);
}

.client-row:first-child {
  padding-top: 0;
}

.client-row:last-child {
  border-bottom: none;
}

.client-name {
  font-size: 16px;
  line-height: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.client-desc {
  font-size: 16px;
  line-height: 24px;
  color: var(--text-secondary);
  text-align: right;
}

.resume-link {
  grid-column: span 4;
  font-size: 16px;
  line-height: 24px;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.resume-link:hover {
  text-decoration: underline;
}

/* ---------- Get in Touch Section ---------- */
#get-in-touch {
  padding: 80px 24px 0px;
}

.touch-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  border-top: 1px solid var(--border-primary);
  padding-top: 20px;
  margin-bottom: 60px;
}

.touch-title {
  grid-column: span 4;
  font-family: 'Stack Sans Headline', system-ui, sans-serif;
  font-size: 36px;
  line-height: 44px;
  font-weight: 600;
  color: var(--text-primary);
}

.touch-content {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.touch-heading {
  font-size: 16px;
  line-height: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.touch-link {
  font-size: 16px;
  line-height: 24px;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  width: fit-content;
}

.touch-link:hover {
  text-decoration: underline;
}

/* ---------- Mobile Toggle Button (hidden on desktop) ---------- */
.nav-toggle {
  display: none;
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: 14px;
  line-height: 20px;
  font-weight: 700;
  color: var(--text-primary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle[aria-expanded="true"] {
  color: var(--text-secondary);
}

/* ---------- Mobile Styles ---------- */
@media (max-width: 640px) {
  /* Spacing */
  .navbar {
    padding: 16px;
  }

  #hero,
  #projects,
  #contact {
    padding-left: 16px;
    padding-right: 16px;
  }

  #testimonials {
    padding: 80px 16px 20px;
  }

  .home-footer {
    margin-left: 16px;
    margin-right: 16px;
  }

  /* Navbar */
  .nav-toggle {
    display: block;
    position: relative;
    z-index: 102;
  }

  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 101;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    padding: 0 16px;
    gap: 24px;
  }

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

  .nav-links .nav-link {
    font-family: 'Stack Sans Headline', system-ui, sans-serif;
    font-size: 36px;
    line-height: 44px;
    font-weight: 600;
  }

  .nav-logo {
    position: relative;
    z-index: 102;
  }

  /* Hero */
  #hero {
    padding-top: 160px;
  }

  .hero-content {
    grid-column: span 12;
  }

  .hero-headline {
    font-size: clamp(44px, 9vw, 68px);
    line-height: 1.2;
  }

  .hero-role {
    font-size: 18px;
    line-height: 24px;
  }

  .hero-role svg {
    width: 22px;
    height: 22px;
  }

  .hero-description {
    font-size: 16px;
    line-height: 24px;
  }

  /* Projects */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card:hover .project-title {
    text-decoration: none;
  }

  /* Testimonials */
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .testimonials-heading {
    font-size: 36px;
    line-height: 44px;
  }

  .testimonial-card {
    gap: 12px;
  }

  .testimonial-author {
    margin-top: 10px;
    gap: 12px;
  }

  .author-avatar {
    width: 80px;
    height: 80px;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
    padding: 60px 0;
  }

  .contact-content {
    grid-column: 1;
  }

  .contact-heading {
    font-size: 28px;
    line-height: 36px;
  }

  /* Footer */
  .home-footer {
    margin-top: 60px;
    padding-top: 40px;
  }

  /* About Page */
  #about-hero {
    padding: 100px 16px 0;
  }

  .about-hero-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .about-title,
  .about-content {
    grid-column: span 1;
  }

  .about-title {
    font-size: 28px;
    line-height: 36px;
    padding-bottom: 12px;
  }

  #clients {
    padding: 60px 16px 0;
  }

  .clients-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .clients-title,
  .clients-list,
  .resume-link {
    grid-column: span 1;
  }

  .clients-title {
    font-size: 28px;
    line-height: 36px;
    padding-bottom: 12px;
  }

  .resume-link {
    justify-content: flex-start;
  }

  .client-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .client-desc {
    text-align: left;
  }

  #get-in-touch {
    padding: 60px 16px 60px;
  }

  .touch-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .touch-title,
  .touch-content {
    grid-column: span 1;
  }

  .touch-title {
    font-size: 28px;
    line-height: 36px;
    padding-bottom: 12px;
  }

  /* Site Footer */
  .site-footer {
    margin: 60px 16px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-copyright {
    margin-top: 40px;
  }
}