:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --border: #334155;
  --accent: #8b5cf6; /* Purple color for events/celebrations */
  --accent-dim: rgba(139, 92, 246, 0.1);
  --text: #f8fafc;
  --muted: #94a3b8;
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, system-ui, sans-serif; line-height: 1.5; }
a { color: inherit; text-decoration: none; }
nav { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--border); max-width: 1200px; margin: 0 auto; }
.nav-logo { font-size: 1.25rem; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 24px; }
.nav-links a { font-size: 0.9rem; font-weight: 600; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.hero { text-align: center; padding: 60px 20px 40px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -1px; margin-bottom: 16px; }
.hero h1 span { color: var(--accent); }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; margin-top: 40px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; transition: transform 0.2s, border-color 0.2s; }
.card:hover { transform: translateY(-4px); border-color: var(--accent); }
.card-icon { font-size: 2rem; margin-bottom: 16px; }
.card h2 { font-size: 1.25rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.9rem; margin-bottom: 16px; }
.btn { display: inline-block; background: var(--accent); color: #fff; font-weight: 600; padding: 12px 24px; border-radius: 8px; margin-top: 16px; text-align: center; cursor: pointer; border: none; width: 100%; }
.btn:hover { opacity: 0.9; }
input, select, textarea { width: 100%; padding: 12px; background: rgba(0,0,0,0.2); border: 1px solid var(--border); border-radius: 8px; color: var(--text); margin-bottom: 16px; font-size: 16px; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 120px; }
label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--muted); margin-bottom: 6px; }
.result-box { margin-top: 24px; padding: 20px; background: var(--accent-dim); border: 1px solid rgba(139, 92, 246, 0.3); border-radius: var(--radius); text-align: center; display: none; }
.result-box.active { display: block; }
.result-value { font-size: 1.5rem; font-weight: 800; color: var(--accent); margin: 8px 0; }
@media (max-width: 600px) {
  .nav-links { display: none; }
}