*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #0f1117; --surface: #181b23; --surface2: #1f2330;
  --border: #2a2f3e; --accent: #6c63ff; --accent2: #00d4aa;
  --text: #e8eaf0; --muted: #7a7f96; --radius: 12px;
}
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
header { border-bottom: 1px solid var(--border); padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 60px; position: sticky; top: 0; background: rgba(15,17,23,0.95); backdrop-filter: blur(8px); z-index: 100; }
.logo { font-family: 'Space Grotesk', sans-serif; font-size: 1.25rem; font-weight: 700; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 16px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.tool-container { max-width: 800px; margin: 0 auto; padding: 40px 24px 80px; }
.tool-title { font-family: 'Space Grotesk', sans-serif; font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.tool-desc { color: var(--muted); font-size: 0.95rem; margin-bottom: 32px; line-height: 1.6; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 16px; }
textarea, input[type="text"], input[type="number"], input[type="date"], input[type="color"], select {
  width: 100%; background: var(--surface2); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-family: 'Inter', sans-serif; font-size: 0.9rem;
  padding: 10px 12px; outline: none; transition: border-color 0.2s; resize: vertical;
}
textarea { min-height: 120px; }
textarea:focus, input:focus, select:focus { border-color: var(--accent); }
input[type="color"] { height: 44px; padding: 4px; cursor: pointer; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 18px; border-radius: 8px; border: none; cursor: pointer; font-family: 'Inter', sans-serif; font-size: 0.85rem; font-weight: 500; transition: opacity 0.15s, transform 0.1s; }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-success { background: var(--accent2); color: #0f1117; }
.btn:hover { opacity: 0.85; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.output { background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; font-size: 0.88rem; min-height: 48px; word-break: break-all; white-space: pre-wrap; margin-top: 12px; color: var(--accent2); font-family: 'Courier New', monospace; }
.label { font-size: 0.8rem; color: var(--muted); margin-bottom: 6px; display: block; margin-top: 14px; }
.label:first-child { margin-top: 0; }
.row { display: flex; gap: 10px; margin-bottom: 10px; }
.row > * { flex: 1; }
.stat-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.stat { background: var(--surface2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; flex: 1; min-width: 72px; text-align: center; font-size: 0.78rem; color: var(--muted); }
.stat strong { display: block; font-size: 1.4rem; color: var(--accent); font-family: 'Space Grotesk', sans-serif; margin-bottom: 2px; }
#toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--accent2); color: #0f1117; padding: 10px 20px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s; z-index: 999; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
footer { border-top: 1px solid var(--border); text-align: center; padding: 24px; color: var(--muted); font-size: 0.8rem; }
footer a { color: var(--muted); }
@media (max-width: 600px) { .tool-container { padding: 24px 16px 60px; } .row { flex-direction: column; } }