:root {
  --bg: #0a0f1b;
  --bg-alt: #0f172a;
  --text: #e6edf3;
  --muted: #9fb0c2;
  --primary: #0ea5e9;
  --card: #0b1323;
  --border: #1f2a44;
  --shadow: rgba(2, 6, 23, 0.6);
  --radius: 14px;
  --container: 1120px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --bg-alt: #ffffff;
    --text: #0f172a;
    --muted: #475569;
    --primary: #0284c7;
    --card: #ffffff;
    --border: #e2e8f0;
    --shadow: rgba(2, 6, 23, 0.06);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: var(--container);
  padding: 0 20px;
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  padding: 8px 12px;
  background: var(--primary);
  color: white;
  border-radius: 8px;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(180%) blur(8px);
  background: color-mix(in hsl, var(--bg-alt) 70%, transparent);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}
.nav { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { font-weight: 800; text-decoration: none; color: var(--text); font-size: 20px; letter-spacing: 0.5px; }
.menu { margin-left: auto; display: flex; gap: 16px; list-style: none; padding: 0; }
.menu a { color: var(--text); text-decoration: none; opacity: 0.9; }
.menu a:hover { opacity: 1; color: var(--primary); }
.theme-toggle { margin-left: auto; background: transparent; border: 1px solid var(--border); color: var(--text); border-radius: 999px; padding: 6px 10px; cursor: pointer; }
.theme-toggle:hover { border-color: var(--primary); }

.hero { padding: 64px 0 32px; }
.hero-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; align-items: center; }
.hero h1 { font-size: clamp(32px, 6vw, 56px); margin: 0; }
.subtitle { margin: 8px 0 10px; color: var(--muted); }
.lead { margin: 0 0 18px; font-size: 18px; }

/* .hero-art img { width: 100%; max-width: 320px; display: block; margin: 0 auto; } */
/* Make the profile photo a circle */
.hero-art img {
  border-radius: 50%;
  width: 200px;  /* You can adjust this size */
  height: 200px; /* You can adjust this size */
  object-fit: cover; /* This prevents the image from looking squashed */
}

.section { padding: 56px 0; }
.section.alt { background: color-mix(in hsl, var(--bg-alt) 85%, transparent); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { margin-top: 0; font-size: 28px; }
.muted { color: var(--muted); }

.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-grid { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 30px -12px var(--shadow);
}

.btn { display: inline-block; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border); color: var(--text); text-decoration: none; }
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); color: #fff; border-color: transparent; }
.btn.primary:hover { filter: brightness(1.05); }

.cta-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* --- Contact Icon Styling --- */
.contact-icons {
  display: flex;
  justify-content: center;
  gap: 2rem; /* space between icons */
  margin-top: 2rem;
}

.contact-icons a {
  text-decoration: none;
  color: var(--text-color-primary); /* Use theme color */
  font-size: 2.5rem; /* Icon size */
  transition: transform 0.3s ease, color 0.3s ease;
}

.contact-icons a:hover {
  color: var(--color-accent); /* Use theme accent color on hover */
  transform: scale(1.2); /* Make icon slightly larger on hover */
}

.site-footer { border-top: 1px solid var(--border); }
.footer-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.back-to-top { color: var(--muted); text-decoration: none; }
.back-to-top:hover { color: var(--primary); }

code { background: color-mix(in hsl, var(--bg-alt) 70%, transparent); padding: 2px 6px; border-radius: 6px; border: 1px solid var(--border); }

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .menu { display: none; }
  .theme-toggle { margin-left: 0; }
}

@media (max-width: 640px) {
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

/* Explicit theme overrides via data-theme attribute */
:root[data-theme='light'] {
  --bg: #f8fafc;
  --bg-alt: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #0284c7;
  --card: #ffffff;
  --border: #e2e8f0;
  --shadow: rgba(2, 6, 23, 0.06);
}

:root[data-theme='dark'] {
  --bg: #0a0f1b;
  --bg-alt: #0f172a;
  --text: #e6edf3;
  --muted: #9fb0c2;
  --primary: #0ea5e9;
  --card: #0b1323;
  --border: #1f2a44;
  --shadow: rgba(2, 6, 23, 0.6);
}