/* Affine Cipher Tool (/tools/affine-tool, v3.61.0) */
.af-tool { max-width: 900px; }
.af-box { background: rgba(0, 17, 0, 0.93); border: 1px solid rgba(0, 255, 65, 0.5); border-radius: 10px; padding: 20px; margin-bottom: 22px; color: #cfc; }
.af-box h2 { margin-top: 0; }
.af-box h3 { color: #0ff; margin: 18px 0 6px; font-size: 1.05em; }
.af-modes { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.af-mode.is-on { background: #0f0; color: #000; }
.af-keyrow { display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; margin-bottom: 16px; }
.af-keyrow label, .af-pair label { display: inline-flex; gap: 8px; align-items: center; color: #0ff; }
.af-keyrow select, .af-keyrow input, .af-pair select {
    font: inherit; font-size: 16px; background: #000; color: #0f0; border: 1px solid #0a0; border-radius: 4px; padding: 6px 8px; min-height: 40px;
}
.af-keyrow input { width: 5em; }
.af-note { color: #9c9; font-size: 0.88em; margin: 6px 0; flex: 1 1 260px; }
.af-label { display: block; color: #0ff; letter-spacing: 1px; text-transform: uppercase; font-size: 0.8em; margin: 8px 0 6px; }
.af-tool textarea {
    width: 100%; box-sizing: border-box; font: inherit; font-size: 16px; background: #000; color: #0f0; border: 1px solid #0a0;
    border-radius: 6px; padding: 10px; resize: vertical; letter-spacing: 0.05em;
}
.af-out-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 12px; }
.af-out { display: block; min-height: 3.2em; white-space: pre-wrap; overflow-wrap: anywhere; background: #000; border: 1px solid #0ff; border-radius: 6px; padding: 10px; color: #fff; letter-spacing: 0.05em; }
.af-table-wrap { overflow-x: auto; margin-top: 16px; }
.af-table { border-collapse: collapse; font-size: 0.9em; }
.af-table th, .af-table td { border: 1px solid rgba(0, 255, 0, 0.3); padding: 4px 6px; text-align: center; min-width: 1.4em; }
.af-table th { color: #0ff; text-align: left; font-weight: normal; padding-right: 10px; }
#af-row-cipher td { color: #ffd700; }
.af-pair { display: flex; gap: 12px; flex-wrap: wrap; margin: 8px 0; }
.af-results { display: grid; gap: 8px; margin-top: 10px; }
.af-k b { color: #0f0; font-weight: normal; }
.af-preview { background: #000; border: 1px solid rgba(0, 255, 0, 0.3); padding: 8px 10px; color: #fff; overflow-wrap: anywhere; letter-spacing: 0.05em; }
.af-results .btn { justify-self: start; }
.af-formula-big { font-size: 1.2em; color: #ffd700; text-align: center; letter-spacing: 1px; }
.af-learn p, .af-learn li { line-height: 1.65; }
.af-learn code { color: #ffd700; }
.af-links a { color: #0ff; }
@media (max-width: 600px) {
    .af-box { padding: 14px; }
}