:root,
[data-theme="dark"] {
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.2vw, 1rem);
  --text-base: clamp(1rem, 0.97rem + 0.2vw, 1.08rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.5rem);
  --text-xl: clamp(1.6rem, 1.2rem + 1.2vw, 2.5rem);
  --text-2xl: clamp(2.35rem, 1.65rem + 2.6vw, 4.8rem);

  --color-bg: #0c111d;
  --color-surface: #121a28;
  --color-surface-2: #182233;
  --color-surface-3: #1f2b40;
  --color-border: rgba(180,203,227,.14);
  --color-divider: rgba(180,203,227,.1);
  --color-text: #edf4ff;
  --color-text-muted: #a4b3c8;
  --color-primary: #61dafb;
  --color-primary-strong: #21b9e7;
  --color-primary-soft: rgba(97,218,251,.14);

  --shadow-sm: 0 8px 20px rgba(0,0,0,.22);
  --shadow-md: 0 18px 40px rgba(0,0,0,.34);
  --radius-md: .9rem;
  --radius-lg: 1.4rem;
  --radius-xl: 1.8rem;
  --sidebar-width: 320px;
  --transition: 180ms cubic-bezier(.16,1,.3,1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: var(--text-base);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #000;
  padding: 8px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.site-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 50;
  transition: transform 0.3s ease;
}

.brand-block {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-lg);
  color: var(--color-text);
}

.brand-mark svg {
  width: 32px;
  height: 32px;
}

.identity-card {
  margin-bottom: 2.5rem;
}

.avatar {
  width: 60px;
  height: 60px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-lg);
  margin-bottom: 1rem;
}

.eyebrow {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.identity-card h1 {
  font-size: var(--text-lg);
  margin-bottom: 0.5rem;
}

.role {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.sidebar-nav a {
  padding: 0.75rem 1rem;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background-color var(--transition), color var(--transition);
}

.sidebar-nav a:hover,
.sidebar-nav a.is-active {
  background-color: var(--color-surface-2);
  color: var(--color-primary);
}

.sidebar-footer {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-divider);
  padding-top: 1.5rem;
  margin-top: 2rem;
}

.content-area {
  flex-grow: 1;
  padding: 3rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.mobile-header {
  display: none;
}

.section {
  margin-bottom: 6rem;
  scroll-margin-top: 4rem;
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  margin-bottom: 1rem;
}

.section-heading h2 {
  font-size: var(--text-xl);
  margin-bottom: 2rem;
  max-width: 800px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-copy h2 {
  font-size: var(--text-xl);
  margin-bottom: 1.5rem;
}

.lead {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--text-sm);
  cursor: pointer;
  border: none;
  transition: transform var(--transition), filter var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #000;
}

.btn-secondary {
  background-color: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.signal-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
}

.signal-card__label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 0.5rem;
}

.signal-card strong {
  display: block;
  font-size: var(--text-lg);
  margin-bottom: 0.5rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.metrics-grid article {
  background: var(--color-surface);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.metrics-grid span {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-primary);
  display: block;
  margin-bottom: 0.5rem;
}

.story-grid,
.projects-grid,
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.story-card,
.project-card,
.skill-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2rem;
  border-radius: var(--radius-lg);
  transition: transform var(--transition);
}

.story-card:hover,
.project-card:hover,
.skill-card:hover {
  transform: translateY(-4px);
}

.story-card h3,
.project-card h3,
.skill-card h3 {
  font-size: var(--text-lg);
  margin-bottom: 1rem;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.tag {
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  border: 1px solid var(--color-border);
}

.contact-panel {
  background: var(--color-surface);
  padding: 3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  text-align: center;
}

.contact-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-panel p {
  margin-bottom: 2rem;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.project-dialog {
  margin: auto;
  border: none;
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 90%;
  padding: 0;
  box-shadow: var(--shadow-md);
}

.project-dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.dialog-inner {
  position: relative;
  padding: 2.5rem;
}

.dialog-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  cursor: pointer;
}

#dialogTitle {
  margin-bottom: 1.5rem;
  font-size: var(--text-xl);
}

#dialogDescription {
  margin-bottom: 1.5rem;
}

.dialog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.dialog-actions {
  display: flex;
  gap: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .site-shell {
    flex-direction: column;
  }

  .sidebar {
    position: fixed;
    transform: translateX(-100%);
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .mobile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 40;
  }

  .mobile-brand {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: var(--text-lg);
    color: var(--color-text);
  }

  .mobile-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0.5rem;
  }

  .menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
  }

  .content-area {
    padding: 2rem;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}