:root {
  --bg-canvas: #F6F4EF;
  --bg-surface: #FFFFFF;
  --bg-subtle: #EDEAE2;
  --text-primary: #171614;
  --text-secondary: #4B4740;
  --accent: #9E3B16;
  --accent-ink: #FFFFFF;
  --accent-surface: #F2E6DF;
  --border-structural: #D8D3C8;
  --border-control: #857E73;
  --error-ink: #B42318;
  --success-ink: #116329;
  --focus-ring: #9E3B16;

  --font-serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --space-section: clamp(2.75rem, 6vw, 4.75rem);
  --radius-sm: 4px;
  --radius-md: 6px;
}

[data-theme="dark"] {
  --bg-canvas: #141311;
  --bg-surface: #1D1B18;
  --bg-subtle: #25221E;
  --text-primary: #F3F0EA;
  --text-secondary: #B8B2A6;
  --accent: #E87A4F;
  --accent-ink: #141311;
  --accent-surface: #2E211B;
  --border-structural: #2E2B26;
  --border-control: #6E685E;
  --error-ink: #F97066;
  --success-ink: #56D364;
  --focus-ring: #E87A4F;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* Base pointer cursor layer for all native and ARIA interactive controls */
a[href],
button,
summary,
select,
label[for],
label:has(> input[type="checkbox"], > input[type="radio"]),
[role="button"],
[role="link"],
[role="tab"],
[role="menuitem"],
[role="option"],
[role="switch"],
input[type="checkbox"],
input[type="radio"],
input[type="file"],
input[type="submit"],
input[type="button"],
input[type="reset"] {
  cursor: pointer;
}

:disabled,
[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.6;
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 1rem;
  background-color: var(--text-primary);
  color: var(--bg-canvas);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 0.75rem;
}

.container {
  width: 100%;
  max-width: 1060px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-canvas);
  border-bottom: 1px solid var(--border-structural);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 64px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark:hover {
  color: var(--accent);
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 0.5rem;
}

.desktop-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.desktop-nav a:hover {
  color: var(--text-primary);
  background-color: var(--bg-subtle);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  min-width: 44px;
  padding: 0.5rem 0.875rem;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-control);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
}

.btn-control:hover {
  background-color: var(--bg-subtle);
  border-color: var(--text-primary);
}

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

.theme-icon {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid currentColor;
  background-color: transparent;
}

[data-theme="dark"] .theme-icon {
  background-color: currentColor;
}

.mobile-nav-panel {
  border-top: 1px solid var(--border-structural);
  background-color: var(--bg-surface);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-block: 0.75rem;
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.mobile-nav-list a:hover {
  background-color: var(--bg-subtle);
  color: var(--accent);
}

@media (min-width: 820px) {
  .desktop-nav {
    display: flex;
  }

  .mobile-menu-btn,
  .mobile-nav-panel {
    display: none;
  }
}

.section {
  padding-block: var(--space-section);
}

.ledger-section {
  border-top: 1px solid var(--border-structural);
}

.section-index {
  margin: 0 0 0.5rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
}

h1 {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(2.125rem, 5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
}

p {
  margin: 0 0 1rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.85fr);
    gap: 3rem;
  }
}

.hero-lead {
  max-width: 60ch;
  color: var(--text-secondary);
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.btn-primary:hover {
  filter: brightness(0.92);
}

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

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-control);
}

.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--text-primary);
}

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

.profile-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  min-width: 0;
}

.photo-placeholder {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  margin-bottom: 1.25rem;
  background-color: var(--bg-subtle);
  border: 1px dashed var(--border-control);
  border-radius: var(--radius-sm);
  text-align: center;
  padding: 1rem;
}

.photo-initials {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
}

.photo-note {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.bio-meta {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.bio-row {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border-structural);
}

.bio-row:first-child {
  padding-top: 0;
  border-top: none;
}

.bio-row dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.bio-row dd {
  margin: 0;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.bio-row a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.bio-row a:hover {
  color: var(--text-primary);
}

.ledger-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 820px) {
  .ledger-grid {
    grid-template-columns: minmax(220px, 0.38fr) minmax(0, 1fr);
    gap: 3rem;
  }
}

.ledger-head {
  min-width: 0;
}

.ledger-note {
  margin-top: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.ledger-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.skill-group {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-md);
  padding: 1.35rem;
}

.skill-desc {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.tech-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-list li {
  padding: 0.35rem 0.75rem;
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-structural);
}

.timeline-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

@media (min-width: 600px) {
  .timeline-item {
    grid-template-columns: 165px minmax(0, 1fr);
    gap: 1.5rem;
  }
}

.timeline-period {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--accent);
}

.timeline-role {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.timeline-detail p:last-child {
  margin-bottom: 0;
}

.project-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.filter-btn {
  min-height: 44px;
  padding: 0.5rem 0.95rem;
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-control);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
}

.filter-btn:hover {
  background-color: var(--bg-subtle);
}

.filter-btn.is-active {
  background-color: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.project-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.project-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.project-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-md);
  padding: 1.35rem;
}

.project-featured {
  border-color: var(--border-control);
}

.project-placeholder {
  border-style: dashed;
  background-color: transparent;
}

.project-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.5rem;
}

.project-top h3 {
  margin-bottom: 0;
}

.status-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background-color: var(--accent-surface);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-structural);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.placeholder-link {
  color: var(--accent);
}

.state-box {
  padding: 1.5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-md);
}

.state-error {
  border-color: var(--error-ink);
  color: var(--error-ink);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 680px) {
  .contact-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 2rem;
    align-items: start;
  }
}

.contact-direct,
.contact-form {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-structural);
  border-radius: var(--radius-md);
  padding: 1.35rem;
  min-width: 0;
}

.contact-address {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--accent);
  overflow-wrap: anywhere;
  margin-bottom: 1rem;
}

.contact-direct-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.status-feedback {
  min-height: 1.5rem;
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: var(--success-ink);
}

.status-feedback.is-error {
  color: var(--error-ink);
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.field-group label {
  font-size: 0.9375rem;
  font-weight: 600;
}

.field-group input,
.field-group textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 0.75rem;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--border-control);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
}

.field-group input[aria-invalid="true"],
.field-group textarea[aria-invalid="true"] {
  border-color: var(--error-ink);
}

.field-error {
  margin: 0;
  font-size: 0.875rem;
  color: var(--error-ink);
}

.form-summary {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  border: 1px solid currentColor;
}

.form-error {
  color: var(--error-ink);
  background-color: var(--bg-canvas);
}

.form-success {
  color: var(--success-ink);
  background-color: var(--bg-canvas);
}

.site-footer {
  border-top: 1px solid var(--border-structural);
  padding-block: 1.75rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}