/* ===== Theme Variables ===== */
:root[data-theme="dark"] {
  --bg: #0b0f14;
  --panel: #111827;
  --neon: #22d3ee;
  --accent: #a78bfa;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --terminal-bg: #020617;
}

:root[data-theme="light"] {
  --bg: #f8fafc;
  --panel: #ffffff;
  --neon: #0284c7;
  --accent: #7c3aed;
  --text: #020617;
  --muted: #475569;
  --terminal-bg: #e2e8f0;
}

* {
  box-sizing: border-box;
  transition: background-color 0.25s ease, color 0.25s ease;
}

body {
  margin: 0;
  font-family: "JetBrains Mono", monospace;
  background: radial-gradient(circle at top, var(--panel), var(--bg));
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 1100px;
  padding: 2rem;
}

/* ===== Theme Toggle ===== */
.theme-toggle {
  position: fixed;
  top: 1.2rem;
  right: 1.2rem;
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 0.6rem 0.8rem;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text);
  box-shadow: 0 0 15px rgba(0,0,0,0.2);
}

.theme-toggle:hover {
  box-shadow: 0 0 20px var(--accent);
}

/* ===== Header ===== */
header {
  text-align: center;
  margin-bottom: 3rem;
}

.site-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--neon);
  text-shadow:
    0 0 10px rgba(34, 211, 238, 0.4),
    0 0 25px rgba(34, 211, 238, 0.2);
}

:root[data-theme="light"] .site-title {
  text-shadow: 0 0 6px rgba(2, 132, 199, 0.3);
}

.subtitle {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 1.1rem;
}

/* ===== Terminal ===== */
.terminal {
  background: var(--terminal-bg);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 3rem;
}

.terminal-header {
  display: flex;
  gap: 8px;
  margin-bottom: 1rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.red { background: #ef4444; }
.yellow { background: #facc15; }
.green { background: #22c55e; }

.terminal pre {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.cmd {
  color: var(--neon);
}

/* ===== Skills ===== */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 16px;
  padding: 1.5rem;
}

.card h3 {
  margin-top: 0;
  color: var(--accent);
}

.card ul {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0 0;
}

.card li {
  margin: 0.4rem 0;
  color: var(--muted);
}

/* ===== Footer ===== */
footer {
  text-align: center;
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}