/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0e0e12;
  --surface: #16161d;
  --surface-hover: #1e1e28;
  --border: #2a2a38;
  --text: #e2e2ea;
  --text-muted: #8888a0;
  --accent: #7c6aef;
  --accent-hover: #9585ff;
  --danger: #ef4444;
  --success: #22c55e;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ── Layout ── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Header ── */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}
.site-logo span { color: var(--accent); }
.site-nav a {
  color: var(--text-muted);
  margin-left: 1.5rem;
  font-size: 0.9rem;
}
.site-nav a:hover { color: var(--text); }

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 5rem 0 3rem;
}
.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}
.hero h1 span { color: var(--accent); }
.hero p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ── Project Cards ── */
.projects-section {
  padding: 2rem 0 4rem;
}
.projects-section h2 {
  font-size: 1.1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  transition: background 0.15s, border-color 0.15s;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
}
.project-card .icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}
.project-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}
.project-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex: 1;
}
.project-card .tag {
  margin-top: 1rem;
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(124, 106, 239, 0.15);
  color: var(--accent);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--surface-hover); }
.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover { background: rgba(239, 68, 68, 0.25); }
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.8rem; }