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

:root,
[data-theme="light"] {
  --bg: #faf8f3;
  --surface: #ffffff;
  --border: #e8e2d5;
  --text: #12100a;
  --muted: #8a7e70;
  --hover: #f2ede2;
  --blob: #1432c8;
  --primary: #1432c8;
  --accent: #e05a18;
  --radius: 10px;
}

[data-theme="dark"] {
  --bg: #0c0e18;
  --surface: #13162a;
  --border: #1e2240;
  --text: #f0ede6;
  --muted: #7a7d95;
  --hover: #1a1e35;
  --blob: #0f2bb5;
  --primary: #3a5fdd;
  --accent: #e05a18;
  --radius: 10px;
}

html {
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
}

/* --- Navbar --- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 64px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.925rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--accent);
}

/* --- Theme toggle --- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.theme-toggle:hover {
  background: var(--hover);
  color: var(--accent);
  border-color: var(--accent);
}

[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none;  }
[data-theme="light"] .icon-sun  { display: none;  }
[data-theme="light"] .icon-moon { display: block; }

/* --- Hero --- */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 80px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 48px;
}

.hero-image-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
}

.hero-blob {
  position: absolute;
  width: 320px;
  height: 320px;
  background: var(--blob);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero-avatar {
  position: relative;
  width: 240px;
  height: 240px;
  object-fit: cover;
  object-position: center 30%;
  border-radius: 50%;
  z-index: 1;
}

.hero-avatar-placeholder {
  position: relative;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--border);
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 700;
  color: var(--muted);
  z-index: 1;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-heading {
  font-size: 3.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--primary);
}

.hero-bio {
  font-size: 1.15rem;
  color: var(--muted);
  line-height: 1.75;
  max-width: 460px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

/* --- Social links --- */
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--surface);
  color: var(--accent);
  text-decoration: none;
  transition: background 0.15s, opacity 0.15s;
}

.social-link:hover {
  background: var(--hover);
  opacity: 0.8;
}


/* --- Responsive --- */
@media (max-width: 900px) {
  .navbar {
    padding: 0 24px;
  }

  .nav-links {
    gap: 20px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 48px 24px;
    gap: 40px;
  }

  .hero-image-wrap {
    min-height: 260px;
  }

  .hero-blob {
    width: 220px;
    height: 220px;
  }

  .hero-avatar,
  .hero-avatar-placeholder {
    width: 160px;
    height: 160px;
  }

  .hero-heading {
    font-size: 2.75rem;
  }

  .content-section {
    padding: 40px 24px;
  }
}

@media (max-width: 560px) {
  .navbar {
    padding: 0 16px;
  }

  .nav-links {
    gap: 12px;
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .logo {
    font-size: 0.9rem;
  }

  .hero {
    padding: 40px 16px;
  }

  .hero-heading {
    font-size: 2.25rem;
  }

  .content-section {
    padding: 32px 16px;
  }
}