/* Public portfolio — restrained dark theme, system font stack only. */

:root {
  --bg: #08090b;
  --surface: rgba(255, 255, 255, 0.02);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #f7f8f8;
  --text-secondary: #9ba1ac;
  --text-tertiary: #8a8f98;
  --accent: #5e6ad2;
  --accent-strong: #4f5abf;
  --accent-text: #8b93ff;
  --measure: 44rem;
}

* { box-sizing: border-box; }

html { color-scheme: dark; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

::selection { background: rgba(94, 106, 210, 0.45); }

:focus-visible {
  outline: 2px solid var(--accent-text);
  outline-offset: 2px;
}

h1, h2, h3, h4 { color: var(--text); overflow-wrap: break-word; }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  color: var(--text-secondary);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-300%);
}
.skip-link:focus { transform: translateY(0); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 9, 11, 0.85);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.site-nav {
  max-width: 66rem;
  margin-inline: auto;
  padding: 0.5rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0 0.75rem;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--text);
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  gap: 0.625rem;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0.2rem;
  border: 1px solid var(--border-strong);
  border-radius: 0.625rem;
  background: #eef4f4;
}
.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 0.125rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
}
.nav-links a:hover { color: var(--text); background: var(--surface-hover); }

/* Layout */
.section {
  max-width: 66rem;
  margin-inline: auto;
  padding: 4.5rem 1.5rem 0;
  scroll-margin-top: 4.5rem;
}
.section > h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.section-intro {
  margin: 0 0 2.5rem;
  max-width: var(--measure);
  color: var(--text-secondary);
}

/* Hero / intro */
.hero {
  padding-top: 5.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(17rem, 0.65fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 5.5rem);
}
.hero-copy { min-width: 0; }
.kicker {
  margin: 0 0 1rem;
  color: var(--accent-text);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.05;
}
.hero-intro {
  margin: 0 0 1rem;
  max-width: 38rem;
  color: var(--text);
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  line-height: 1.5;
  text-wrap: pretty;
}
.hero-bio {
  margin: 0 0 1rem;
  max-width: 40rem;
  color: var(--text-secondary);
  line-height: 1.7;
  text-wrap: pretty;
}
.hero-focus {
  margin: 0;
  max-width: 40rem;
  color: var(--text-tertiary);
  line-height: 1.65;
  text-wrap: pretty;
}
.portrait-frame {
  position: relative;
  width: min(100%, 23rem);
  margin: 0;
  justify-self: end;
  padding: 0.45rem;
  border: 1px solid var(--border-strong);
  border-radius: 1.125rem;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.34);
}
.portrait-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border-radius: 0.8rem;
  object-fit: cover;
  object-position: 50% 48%;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.25rem;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.625rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
}
.button-primary { background: var(--accent); color: #ffffff; }
.button-primary:hover { background: var(--accent-strong); }
.button-secondary { border-color: var(--border-strong); color: var(--text); }
.button-secondary:hover { background: var(--surface-hover); }

/* Capabilities */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.capability {
  padding: 1.25rem 1.25rem 1.375rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface);
}
.capability h3 { margin: 0 0 0.5rem; font-size: 1rem; font-weight: 600; }
.capability p { margin: 0; color: var(--text-secondary); font-size: 0.925rem; line-height: 1.55; }

/* Selected work */
.case-list { display: grid; gap: 1.25rem; }
.case-card {
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 1px solid var(--border);
  border-radius: 0.875rem;
  background: var(--surface);
}
.case-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 1rem;
}
.case-category {
  color: var(--accent-text);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.case-status {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}
.case-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 3.5vw, 1.75rem);
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.case-summary {
  margin: 0 0 1.5rem;
  max-width: var(--measure);
  color: var(--text-secondary);
}
.case-detail {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.case-block {
  padding: 1.125rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
}
.case-block-heading {
  margin: 0 0 0.625rem;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.case-block p { margin: 0; color: var(--text-secondary); font-size: 0.95rem; }
.case-approach {
  display: grid;
  gap: 0.5rem;
  margin: 0;
  padding-left: 1.125rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.case-approach li::marker { color: var(--accent-text); font-weight: 600; }
.case-results {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}
.case-result {
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 0.625rem;
}
.case-result strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.case-result span {
  display: block;
  margin-top: 0.375rem;
  color: var(--text-tertiary);
  font-size: 0.8rem;
}
.case-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
}
.case-skills li {
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.8rem;
}
.case-source-note {
  margin: 0;
  padding-top: 1.125rem;
  border-top: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 0.85rem;
}
.case-status-note { margin: 1rem 0 0; color: var(--text-tertiary); font-size: 0.875rem; }

/* Approach */
.approach-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.approach-item {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface);
}
.approach-index {
  display: block;
  margin-bottom: 0.625rem;
  color: var(--accent-text);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.08em;
}
.approach-item h3 { margin: 0 0 0.5rem; font-size: 1.05rem; font-weight: 600; }
.approach-item p { margin: 0; color: var(--text-secondary); font-size: 0.925rem; line-height: 1.55; }

/* Footer */
.site-footer {
  margin-top: 5rem;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 66rem;
  margin-inline: auto;
  padding: 1.5rem 1.5rem 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem 2rem;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}
.footer-inner p { margin: 0; }
.footer-brand {
  display: inline-flex;
  align-items: center;
  width: min(13rem, 100%);
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: 0.625rem;
  background: #eef4f4;
}
.footer-brand img {
  display: block;
  width: 100%;
  height: auto;
}
.footer-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--text-secondary);
  text-decoration: none;
  overflow-wrap: anywhere;
}
.footer-link:hover { color: var(--text); text-decoration: underline; }

/* Motion */
.button,
.nav-links a,
.footer-link {
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Small screens */
@media (max-width: 48rem) {
  .section { padding: 3.25rem 1rem 0; }
  .hero {
    padding-top: 3.5rem;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .portrait-frame {
    width: min(100%, 24rem);
    justify-self: start;
  }
  .site-nav { padding: 0.375rem 1rem; }
  .case-detail, .approach-list { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; padding: 1.5rem 1rem 2rem; }
}
@media (max-width: 40rem) {
  .case-results { grid-template-columns: 1fr; }
}