:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-soft: rgba(255, 255, 255, 0.76);
  --border: rgba(122, 130, 185, 0.18);
  --text: #1b1d32;
  --text-muted: #505775;
  --text-soft: #737a96;
  --blue: #3f7cff;
  --purple: #8258ff;
  --pink: #f255b8;
  --shadow: 0 20px 60px rgba(120, 127, 176, 0.14);
  --radius: 24px;
  --radius-sm: 18px;
  --max-width: 1180px;
  --max-width-narrow: 980px;
  --max-width-admin: 1360px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
}

a { color: var(--purple); text-decoration: none; }
a:hover, a:focus-visible { color: var(--purple); }
:focus-visible { outline: 2px solid rgba(63, 124, 255, 0.85); outline-offset: 4px; }

.bio a,
.card a,
.article-body a,
.admin-card a {
  background-image: linear-gradient(135deg, var(--blue), var(--purple) 55%, var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
}

.page-shell { position: relative; padding: clamp(8rem, 12vw, 10rem) 0 var(--space-7); }
.page-shell-narrow { padding-top: clamp(7.5rem, 11vw, 9rem); }
.container { width: min(calc(100% - 1.5rem), var(--max-width)); margin: 0 auto; }
.page-shell-narrow .container { width: min(calc(100% - 1.5rem), var(--max-width-narrow)); }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  padding: 0;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 40px rgba(120, 127, 176, 0.12);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}
.header-shell {
  width: 100%;
  max-width: none;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: 1.2rem clamp(1.5rem, 4vw, 3rem);
}
.brand { color: var(--text); font-size: 0.95rem; font-weight: 700; letter-spacing: 0.02em; }
.site-nav { display: flex; align-items: center; gap: 1.25rem; }
.site-nav a, .nav-button {
  color: var(--text-muted);
  font-size: 0.95rem;
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  cursor: pointer;
}
.site-nav a:hover, .site-nav a:focus-visible, .nav-button:hover, .nav-button:focus-visible { color: var(--text); }
.inline-form { margin: 0; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 320px);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: var(--space-6);
}
.hero-copy { min-width: 0; }
.hero h1, .page-title {
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 4.7rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}
.subtitle, .article-summary, .admin-lead {
  margin: var(--space-4) 0 0;
  color: var(--text-muted);
  font-size: clamp(1.05rem, 2.3vw, 1.3rem);
}
.bio {
  max-width: 46rem;
  margin: var(--space-5) 0 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.social-links { display: flex; align-items: center; gap: 0.85rem; margin-top: var(--space-4); }
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.8rem;
  height: 2.8rem;
  border: 1px solid rgba(122, 130, 185, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
  box-shadow: 0 10px 30px rgba(120, 127, 176, 0.12);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.social-link:hover, .social-link:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
  border-color: rgba(130, 88, 255, 0.3);
  box-shadow: 0 14px 30px rgba(120, 127, 176, 0.18);
}
.social-link svg { width: 1.15rem; height: 1.15rem; fill: currentColor; }
.hero-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: 32px;
  border: 1px solid rgba(122, 130, 185, 0.22);
  box-shadow: var(--shadow);
  background-image:
    url('../assets/profile-photo.jpg'),
    linear-gradient(135deg, rgba(63, 124, 255, 0.18), rgba(130, 88, 255, 0.14) 55%, rgba(242, 85, 184, 0.14));
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.section { padding: var(--space-6) 0 0; }
.section-first { padding-top: var(--space-3); }
.section-heading { margin-bottom: var(--space-4); }
.section-kicker {
  display: inline-block;
  margin: 0 0 var(--space-2);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.section-kicker a,
.section-kicker a:hover,
.section-kicker a:focus-visible {
  color: inherit;
}
.section h2 { margin: 0; font-size: clamp(1.7rem, 4vw, 2.4rem); line-height: 1.1; letter-spacing: -0.04em; }

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
.content-grid-projects { grid-template-columns: 1fr; }
.content-stack { display: grid; gap: var(--space-4); }
.card, .admin-card {
  padding: 1.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84)), var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.content-card h2, .content-card h3, .admin-card h1, .admin-card h2 { margin: 0 0 0.6rem; }
.content-card p, .admin-card p, .article-body, .meta-line, .stat-card span { color: var(--text-muted); }
.content-card-empty { text-align: left; }
.content-card-admin {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.admin-card-actions,
.admin-inline-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.admin-inline-actions {
  margin-bottom: var(--space-4);
}
.form-helper {
  margin: 0 0 var(--space-4);
  color: var(--text-soft);
}
.project-image-shell {
  margin-bottom: var(--space-4);
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(122, 130, 185, 0.16);
  background: rgba(247, 248, 255, 0.8);
}
.project-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.article-cover-shell {
  margin: 0 0 var(--space-4);
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(122, 130, 185, 0.16);
  background: rgba(247, 248, 255, 0.8);
}
.article-cover-shell-feature {
  width: calc(100% + 4rem);
  margin: 0 -2rem var(--space-5);
  border-radius: 28px;
}
.article-cover-shell-compact {
  margin-bottom: 1rem;
}
.article-cover-image {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.admin-shell { background: linear-gradient(180deg, rgba(248, 249, 255, 0.55), #ffffff); }
.admin-shell .container { width: min(calc(100% - 3rem), var(--max-width-admin)); }
.admin-auth-card { max-width: 32rem; }
.admin-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.admin-form { display: grid; gap: var(--space-4); }
.admin-form label { display: grid; gap: 0.55rem; color: var(--text); font-weight: 600; }
.admin-form input[type='text'],
.admin-form input[type='password'],
.admin-form textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(122, 130, 185, 0.22);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  font: inherit;
}
.admin-form textarea { resize: vertical; min-height: 8rem; }
.admin-form input[type='file'] {
  width: 100%;
  font: inherit;
  color: var(--text-muted);
}
.admin-shell .admin-form input[type='file']::file-selector-button,
.admin-shell .admin-form input[type='file']::-webkit-file-upload-button {
  margin-right: 0.9rem;
  padding: 0.85rem 1.2rem;
  border: 0;
  border-radius: 999px;
  background: #202020;
  color: #ffffff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    background 0.2s ease;
}
.admin-shell .admin-form input[type='file']:hover::file-selector-button,
.admin-shell .admin-form input[type='file']:focus-visible::file-selector-button,
.admin-shell .admin-form input[type='file']:hover::-webkit-file-upload-button,
.admin-shell .admin-form input[type='file']:focus-visible::-webkit-file-upload-button {
  background: #2d2d2d;
  transform: translateY(-1px);
}
.checkbox-field { display: flex !important; align-items: center; gap: 0.8rem; font-weight: 500 !important; }
.admin-image-preview {
  overflow: hidden;
  max-width: 24rem;
  border: 1px solid rgba(122, 130, 185, 0.16);
  border-radius: var(--radius-sm);
}
.admin-image-preview img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.admin-subsection {
  display: grid;
  gap: var(--space-4);
  padding: 1.25rem;
  border: 1px solid rgba(122, 130, 185, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(248, 249, 255, 0.72);
}
.admin-subsection-header h2 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
}
.admin-subsection-header p {
  margin: 0;
  color: var(--text-soft);
}
.admin-upload-form {
  gap: var(--space-3);
}
.admin-media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}
.admin-media-card {
  display: grid;
  gap: var(--space-3);
  padding: 1rem;
  border: 1px solid rgba(122, 130, 185, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.86);
}
.admin-media-meta {
  display: grid;
  gap: 0.9rem;
}
.admin-media-meta strong {
  color: var(--text);
}
.admin-media-meta textarea {
  min-height: 0;
  color: var(--text-muted);
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}
.button-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  width: fit-content;
  padding: 0.85rem 1.2rem;
  border: 1px solid rgba(122, 130, 185, 0.18);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(63, 124, 255, 0.12), rgba(130, 88, 255, 0.1) 55%, rgba(242, 85, 184, 0.12));
  color: var(--text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(120, 127, 176, 0.1);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}
.button-primary:hover,
.button-primary:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
  border-color: rgba(122, 130, 185, 0.28);
  box-shadow: 0 14px 28px rgba(120, 127, 176, 0.14);
}
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  width: fit-content;
  padding: 0.85rem 1.2rem;
  border: 1px solid rgba(122, 130, 185, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}
.button-secondary:hover,
.button-secondary:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
  border-color: rgba(122, 130, 185, 0.3);
  box-shadow: 0 12px 24px rgba(120, 127, 176, 0.1);
}
.admin-shell .button-primary,
.admin-shell .button-secondary {
  border: 0;
  background: #202020;
  color: #ffffff;
  box-shadow: none;
  background-image: none;
  -webkit-background-clip: border-box;
  background-clip: border-box;
}
.admin-shell .button-primary:hover,
.admin-shell .button-primary:focus-visible,
.admin-shell .button-secondary:hover,
.admin-shell .button-secondary:focus-visible {
  color: #ffffff;
  background: #2d2d2d;
  border-color: transparent;
  box-shadow: none;
}
.flash-stack { display: grid; gap: 0.75rem; margin-bottom: var(--space-4); }
.flash {
  padding: 0.95rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(122, 130, 185, 0.18);
  background: rgba(255, 255, 255, 0.9);
}
.flash-error { border-color: rgba(219, 75, 114, 0.22); }
.flash-success { border-color: rgba(74, 154, 108, 0.25); }
.stats-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4); margin: var(--space-5) 0; }
.stat-card {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem;
  border: 1px solid rgba(122, 130, 185, 0.16);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.75);
}
.stat-card strong { font-size: 1.9rem; line-height: 1; }
.article-page { max-width: 48rem; }
.preview-banner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
  padding: 0.9rem 1rem;
  border: 1px solid rgba(130, 88, 255, 0.16);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(63, 124, 255, 0.08), rgba(130, 88, 255, 0.08) 55%, rgba(242, 85, 184, 0.1));
}
.preview-banner strong {
  color: var(--text);
}
.preview-banner span {
  color: var(--text-muted);
}
.preview-banner-link {
  color: var(--text);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
.preview-banner-link:hover,
.preview-banner-link:focus-visible {
  color: var(--text);
}
.article-body { margin-top: var(--space-5); }
.article-body h2, .article-body h3 { color: var(--text); margin-top: 2rem; }
.article-body figure { margin: 2rem 0; }
.article-body img {
  display: block;
  width: 100%;
  margin: 1.5rem 0;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(122, 130, 185, 0.16);
  background: rgba(247, 248, 255, 0.8);
}
.article-body figcaption {
  margin-top: -0.75rem;
  color: var(--text-soft);
  font-size: 0.95rem;
}
.article-body pre, .article-body code {
  font-family: 'SFMono-Regular', ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, monospace;
}
.article-body pre {
  overflow-x: auto;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(244, 246, 255, 0.9);
  border: 1px solid rgba(122, 130, 185, 0.18);
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-photo { max-width: 320px; }
}

@media (max-width: 640px) {
  .page-shell, .page-shell-narrow { padding-top: 7.75rem; }
  .container, .page-shell-narrow .container { width: min(calc(100% - 1rem), var(--max-width)); }
  .admin-shell .container { width: min(calc(100% - 1rem), var(--max-width-admin)); }
  .article-cover-shell-feature {
    width: 100%;
    margin: 0 0 var(--space-4);
    border-radius: var(--radius-sm);
  }
  .header-shell {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-3);
    padding: 1rem 1.25rem 1.1rem;
  }
  .site-nav { gap: 0.9rem; flex-wrap: wrap; }
  .social-links { flex-wrap: wrap; }
  .hero-photo { display: none; }
  .hero h1, .page-title { max-width: 8ch; }
  .content-card-admin, .admin-heading-row, .admin-card-actions, .admin-inline-actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .stats-grid { grid-template-columns: 1fr; }
}