:root {
  color-scheme: light;
  --color-bg: #f8f7f4;
  --color-text: #1f1f1f;
  --color-muted: #3f3f46;
  --color-primary: #2430a3;
  --color-primary-contrast: #ffffff;
  --color-primary-soft: rgba(36, 48, 163, 0.12);
  --shadow-primary: rgba(36, 48, 163, 0.25);
  --color-accent: var(--color-surface);
  --color-surface: #ffffff;
  --color-border: rgba(0, 0, 0, 0.05);
  --shadow-card: 0 12px 24px rgba(15, 23, 42, 0.08);
  --color-footer-bg: #ffffff;
  --color-hero-bg: linear-gradient(180deg, #ffffff 0%, #f4f2ff 100%);
  --font-base: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3rem;
  --max-width: 68rem;
}

body[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #101013;
  --color-text: #f2f2f7;
  --color-muted: #c7c9d9;
  --color-primary: #9fb4ff;
  --color-primary-contrast: #0c0c10;
  --color-primary-soft: rgba(159, 180, 255, 0.22);
  --shadow-primary: rgba(159, 180, 255, 0.3);
  --color-accent: var(--color-surface);
  --color-surface: #1b1b21;
  --color-border: rgba(255, 255, 255, 0.08);
  --shadow-card: 0 18px 32px rgba(0, 0, 0, 0.35);
  --color-footer-bg: #1b1b21;
  --color-hero-bg: linear-gradient(180deg, #1b1b21 0%, #101013 100%);
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-hero-bg);
}

.hero--subpage {
  min-height: auto;
}

.hero__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-sm);
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.hero__content--subpage {
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__logo {
  font-weight: 600;
  font-size: 1.1rem;
}

.nav__links {
  list-style: none;
  display: flex;
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
}

.nav__links a {
  font-weight: 500;
  color: var(--color-muted);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
  font-size: 0.9rem;
}

.theme-toggle span:last-child {
  display: none;
}

.theme-toggle:hover,
.theme-toggle:focus {
  transform: translateY(-1px);
  color: var(--color-text);
}

body[data-theme="dark"] .theme-toggle span:first-child {
  display: none;
}

body[data-theme="dark"] .theme-toggle span:last-child {
  display: inline;
}

.hero--subpage .hero__content {
  flex: 0;
}

.hero__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: var(--space-lg) var(--space-sm);
  max-width: var(--max-width);
  margin: 0 auto;
  gap: var(--space-sm);
}

.hero__kicker {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  margin: 0;
  color: var(--color-primary);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

p {
  margin: 0;
  color: var(--color-muted);
  max-width: 40rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: 2px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
}

.btn:hover,
.btn:focus {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px var(--shadow-primary);
}

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

.btn--ghost {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--inverted {
  background: #1f1f1f;
  color: #fff;
}

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

.section--light {
  background: var(--color-surface);
}

.section--accent {
  background: var(--color-accent);
  color: var(--color-text);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.about {
  display: grid;
  gap: var(--space-sm);
  align-items: center;
}

.about__media {
  margin: 0;
  display: flex;
  justify-content: center;
}

.about__image {
  width: 220px;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-border);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.18);
}

.about__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.about__body h2 {
  margin-top: 0;
}

.about__body p {
  max-width: 42rem;
}

.about__body .pill-list {
  margin-top: var(--space-xs);
}

@media (min-width: 768px) {
  .about {
    grid-template-columns: auto 1fr;
    gap: var(--space-md);
  }
}

.section--accent .section__inner {
  align-items: center;
  text-align: center;
  gap: var(--space-xs);
}

.pill-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: 0;
  margin: 0;
}

.pill-list li {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

.projects {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
}

.projects__cta {
  margin-top: var(--space-sm);
  display: flex;
  justify-content: center;
}

.project-card {
  background: var(--color-surface);
  padding: var(--space-sm);
  border-radius: 1rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.project-card__image {
  width: 100%;
  border-radius: 0.75rem;
  border: 1px solid var(--color-border);
  object-fit: cover;
  max-height: 14rem;
}

.project-card__meta {
  list-style: none;
  display: flex;
  gap: var(--space-xs);
  padding: 0;
  margin: 0;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.project-card__actions {
  display: flex;
  gap: var(--space-xs);
  margin-top: auto;
}

.project-card__actions .link[aria-disabled="true"] {
  pointer-events: none;
  opacity: 0.5;
}

.footer {
  padding: var(--space-sm);
  border-top: 1px solid var(--color-border);
  background: var(--color-footer-bg);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-xs);
  font-size: 0.85rem;
  color: var(--color-muted);
}

.footer__links {
  display: inline-flex;
  gap: var(--space-xs);
}

@media (max-width: 640px) {
  .hero__nav {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .nav__actions {
    flex-direction: column;
    width: 100%;
  }

  .nav__links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero__content {
    align-items: flex-start;
  }

  .hero__actions {
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .theme-toggle {
    width: 100%;
  }
}