/* HMAC Generator — tool-specific */
.page { padding: 40px 20px; max-width: 720px; margin: 0 auto; }
.page h1 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.page .subtitle { color: #888; margin-bottom: 20px; font-size: 14px; }

.form-row { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.form-row label { font-size: 12px; color: #aaa; text-transform: uppercase; letter-spacing: 1px; }
.form-row input[type=text], .form-row textarea {
  background: #0d0d0d; border: 1px solid #2a2a2a; color: #fff;
  padding: 10px 12px; border-radius: 6px; font-size: 14px;
  font-family: 'SF Mono', monospace;
}
.form-row textarea { resize: vertical; }

.opt-row { display: flex; gap: 18px; flex-wrap: wrap; align-items: end; }
.opt-group { display: flex; flex-direction: column; gap: 6px; }
.opt-label { font-size: 11px; color: #aaa; text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }
.opt-group select {
  background: #0d0d0d; border: 1px solid #2a2a2a; color: #fff;
  padding: 8px 10px; border-radius: 6px; font-size: 13px;
}

.seg { display: inline-flex; gap: 0; border: 1px solid #2a2a2a; border-radius: 6px; overflow: hidden; }
.seg-btn { background: #0d0d0d; color: #888; border: none; padding: 6px 12px; cursor: pointer; font-size: 12px; }
.seg-btn:hover { background: #1a1a1a; color: #ccc; }
.seg-btn.active { background: #ff4444; color: #fff; }

.hmac-output {
  background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 8px;
  padding: 16px; font-family: 'SF Mono', monospace; font-size: 13px;
  color: #4caf50; word-break: break-all; line-height: 1.6;
  user-select: all; min-height: 40px;
  margin: 10px 0 12px;
}

.action-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.status-msg { font-size: 13px; margin-left: 8px; }
.status-msg.ok { color: #4caf50; }
.status-msg.error { color: #ff6666; }

@media (max-width: 600px) {
  .page { padding: 24px 12px; }
  .page h1 { font-size: 22px; }
}