.page { max-width: 760px; margin: 0 auto; padding: 36px 20px; }
.page h1 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 6px; letter-spacing: -0.3px; }
.page .subtitle { color: #888; margin-bottom: 22px; font-size: 14px; line-height: 1.5; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: #aaa; margin-bottom: 6px; font-weight: 500; }
.field input[type=text], .field input[type=number], .field textarea, .field select {
  width: 100%; padding: 10px 12px; background: #0d0d0d; color: #fff;
  border: 1px solid #2a2a2a; border-radius: 6px; font-size: 14px;
  font-family: 'SF Mono', Menlo, monospace;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: #ff4444; outline: none; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.row .field { flex: 1; min-width: 140px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 4px 0 18px; }
.out-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.out-head label { font-size: 12px; color: #aaa; font-weight: 500; }
.copy-btn, .small-btn {
  background: #1a1a1a; color: #ccc; border: 1px solid #2a2a2a; border-radius: 6px;
  padding: 6px 12px; font-size: 12px; cursor: pointer; font-family: inherit;
}
.copy-btn:hover, .small-btn:hover { border-color: #444; color: #fff; }
.output { width: 100%; min-height: 90px; padding: 12px; background: #0d0d0d; color: #fff;
  border: 1px solid #2a2a2a; border-radius: 6px; font-size: 14px; white-space: pre-wrap;
  word-break: break-word; font-family: 'SF Mono', Menlo, monospace; }
.output[readonly] { resize: vertical; }
.result-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-top: 16px; }
.result-card { padding: 14px; background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 8px; text-align: center; }
.result-card.hl { border-color: #ff4444; background: rgba(255,68,68,0.05); }
.result-card .label { font-size: 10px; color: #888; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px; }
.result-card .value { font-size: 22px; font-weight: 700; color: #fff; font-family: 'SF Mono', Menlo, monospace; }
.result-card.hl .value { color: #ff6666; }
.tool-info { max-width: 760px; margin: 8px auto 60px; padding: 0 20px; color: #ccc; line-height: 1.6; }
.tool-info h2 { font-size: 20px; font-weight: 700; color: #fff; margin: 28px 0 12px; }
.tool-info p, .tool-info li { font-size: 14px; }
.tool-info details { background: #141414; border: 1px solid #262626; border-radius: 8px; margin-bottom: 8px; }
.tool-info summary { padding: 12px 16px; cursor: pointer; font-weight: 600; color: #eee; font-size: 14px; }
.tool-info details p { padding: 0 16px 14px; margin: 0; color: #ccc; }
.note { font-size: 13px; color: #888; background: #111; border-left: 3px solid #ff4444; padding: 10px 14px; border-radius: 4px; margin: 14px 0; }