*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #D6DAE2;
  --text: #435272;
  --text-light: #4A5976;   /* 5.0:1 on --bg */
  --accent: #DB8749;       /* decorative only (underlines, borders): 1.98:1 on --bg */
  --accent-text: #8F4A17;  /* orange for text: 4.7:1 on --bg, 6.2:1 on --panel */
  --link: #3B5B7A;         /* 5.1:1 on --bg */
  --card-bg: #FFFFFF;
  --panel: #F5F7F9;
  --border: #CBD5E1;
  --icon-border: #9EAABB;
  --heading-font: 'Bricolage Grotesque', sans-serif;
  --body-font: 'Sora', sans-serif;
  --mono-font: 'IBM Plex Mono', monospace;
}

body {
  font-family: var(--body-font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; width: 100%; }

/* ============ ACCESSIBILITY ============ */

:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 3px;
  border-radius: 4px;
}
.skip-link {
  position: absolute;
  left: 16px;
  top: -48px;
  background: var(--text);
  color: #FFFFFF;
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 10;
  text-decoration: none;
}
.skip-link:focus { top: 12px; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ============ HOME PAGE ============ */

.home-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 40px 0;
  width: 100%;
  display: flex;
  gap: 48px;
}
.home-left {
  flex: 1;
  max-width: 560px;
}

/* Labels */
.labels {
  font-family: var(--mono-font);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-text);
  margin-bottom: 20px;
}

/* Hero */
.hero-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}
.profile-photo {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.hero-header h1 {
  font-family: var(--heading-font);
  font-size: 44px;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.1;
}

/* Bio */
.bio {
  font-size: 15px;
  line-height: 1.75;
  margin-bottom: 36px;
}
.bio a { color: var(--link); }
.bio p + p { margin-top: 14px; }

/* Call to action */
.cta { margin-bottom: 28px; }
.cta-heading {
  font-family: var(--heading-font);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 5px;
  text-decoration-thickness: 2px;
  display: inline-block;
  margin-bottom: 20px;
}
.cta-text {
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
}
.btn-primary {
  display: inline-block;
  background: var(--text);
  color: #FFFFFF;
  font-family: var(--body-font);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 10px;
  transition: background 0.2s;
}
.btn-primary:hover { background: #2d3a52; }
.cta-email {
  font-size: 15px;
  color: var(--link);
}
.cta-boxed {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 36px;
  margin: 32px 0 0;
}

/* Social Icons */
.social-icons {
  display: flex;
  gap: 14px;
  margin-bottom: 40px;
}
.social-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  border: 1.5px solid var(--icon-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  text-decoration: none;
  transition: all 0.2s;
}
.social-icon:hover {
  border-color: var(--text);
  color: var(--text);
}
.social-icon svg {
  width: 22px;
  height: 22px;
}


/* Selected work */
.work {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px 40px 24px;
}
.work .cta-heading { margin-bottom: 28px; }

/* Footer */
footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 13px;
  color: var(--text-light);
}
footer a { color: var(--link); }

/* ============ CASE STUDIES INDEX ============ */

.cs-page-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 40px 48px;
  width: 100%;
}

.cs-brand {
  display: inline-block;
  font-family: var(--heading-font);
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.cs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cs-card {
  background: var(--card-bg);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.cs-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(67,82,114,0.12);
}
.cs-card:focus-visible { border-radius: 16px; }

.cs-card-image {
  height: 140px;
  border-radius: 12px;
  margin: 10px 10px 0;
  overflow: hidden;
}
.cs-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.cs-card-body {
  padding: 16px 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cs-card-category {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: 6px;
  background: #E7F2F1;
  color: var(--text);
  margin-bottom: 10px;
  align-self: flex-start;
}

.cs-card h2, .cs-card h3 {
  font-family: var(--heading-font);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
  line-height: 1.25;
}
.cs-card .summary {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.55;
}

/* ============ CASE STUDY PAGE ============ */

.cs-detail { max-width: 840px; }

.cs-article {
  background: var(--panel);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(67,82,114,0.18);
}
.cs-hero {
  background: linear-gradient(135deg, #435272 0%, #2d3a52 100%);
  padding: 44px 44px 40px;
}
.cat-badge {
  display: inline-block;
  font-family: var(--mono-font);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #435272;
  background: #E7F2F1;
  border-radius: 6px;
  padding: 4px 10px;
  margin-bottom: 16px;
}
.cs-hero h1 {
  font-family: var(--heading-font);
  font-size: 32px;
  font-weight: 800;
  color: #FFFFFF;
  margin: 0 0 10px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.cs-hero .subtitle {
  font-size: 16px;
  color: rgba(255,255,255,0.82);
  line-height: 1.6;
}
.cs-article-body {
  padding: 40px 44px 48px;
}

.cs-section { margin-bottom: 32px; }
.cs-section:last-child { margin-bottom: 0; }
.cs-section-label {
  font-family: var(--mono-font);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-text);
  margin-bottom: 12px;
}
.cs-section p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-light);
}
.cs-divider {
  height: 1px;
  background: #E2E8EF;
  margin: 0 0 32px;
}

.deliverables { list-style: none; }
.deliverables li {
  display: flex;
  gap: 14px;
  margin-bottom: 12px;
  align-items: flex-start;
  background: #FFFFFF;
  border: 1px solid #E2E8EF;
  border-radius: 10px;
  padding: 14px 16px;
}
.deliverable-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(219,135,73,0.12);
  color: var(--accent-text);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--mono-font);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cs-section .deliverables p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text);
}

.tech-tags { list-style: none; }
.tech-tags li {
  font-family: var(--mono-font);
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  display: inline-block;
  margin: 0 8px 8px 0;
}

.cs-figure {
  background: #FFFFFF;
  border: 1px solid #E2E8EF;
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 20px;
}
.cs-figure img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  max-height: 640px;
  width: auto;
  height: auto;
}
.cs-figure figcaption {
  font-size: 13px;
  color: var(--text-light);
  text-align: center;
  margin-top: 10px;
  font-style: italic;
}

.cs-pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
}
.cs-pager a {
  display: flex;
  flex-direction: column;
  color: var(--link);
  font-family: var(--heading-font);
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
  max-width: 48%;
}
.cs-pager a:hover { text-decoration: underline; }
.cs-pager a span {
  font-family: var(--mono-font);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
}
.cs-pager-next { text-align: right; margin-left: auto; }

/* ============ MOTION ============ */

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

/* ============ RESPONSIVE ============ */

@media (max-width: 900px) {
  .home-layout { flex-direction: column; padding: 32px 24px 0; }
  .home-left { max-width: 100%; }
  .work { padding: 40px 24px 16px; }
  .cs-grid { grid-template-columns: repeat(2, 1fr); }
  .cs-page-wrapper { padding: 32px 24px; }
}
@media (max-width: 560px) {
  .cs-grid { grid-template-columns: 1fr; }
  .hero-header h1 { font-size: 32px; }
  .profile-photo { width: 68px; height: 68px; }
  .cs-page-wrapper { padding: 24px 16px; }
  .cs-hero { padding: 28px 24px; }
  .cs-hero h1 { font-size: 26px; }
  .cs-article-body { padding: 28px 20px 36px; }
  .cta-boxed { padding: 24px 20px; }
  .cs-pager { flex-direction: column; }
  .cs-pager a { max-width: 100%; }
}