/* FF Tools — estilos isolados sob .ff-tool */
.ff-tool {
    --ff-bg: #141a26;
    --ff-card: #1c2434;
    --ff-line: #2b3648;
    --ff-text: #eef2f7;
    --ff-dim: #9aa7bd;
    --ff-accent: #ff7a1a;
    --ff-accent-dark: #d95f06;
    --ff-green: #22c55e;
    background: var(--ff-bg);
    border: 1px solid var(--ff-line);
    border-radius: 14px;
    color: var(--ff-text);
    padding: 22px;
    margin: 24px 0;
    font-family: inherit;
    box-sizing: border-box;
}
.ff-tool * { box-sizing: border-box; }
.ff-tool-head { margin-bottom: 16px; }
.ff-tool-title { margin: 0 0 6px; font-size: 1.25rem; color: var(--ff-text); }
.ff-tool-sub { margin: 0; color: var(--ff-dim); font-size: 0.95rem; }
.ff-label { display: block; font-weight: 600; margin: 14px 0 8px; font-size: 0.95rem; color: var(--ff-text); }
.ff-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: stretch; }
.ff-input {
    flex: 1 1 200px;
    background: var(--ff-card);
    border: 1px solid var(--ff-line);
    color: var(--ff-text);
    border-radius: 10px;
    padding: 12px 14px;
    font-size: 1rem;
    min-width: 0;
}
.ff-input:focus { outline: 2px solid var(--ff-accent); border-color: var(--ff-accent); }
.ff-btn {
    background: var(--ff-card);
    border: 1px solid var(--ff-line);
    color: var(--ff-text);
    border-radius: 10px;
    padding: 12px 18px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform .08s ease, background .15s ease;
    white-space: nowrap;
}
.ff-btn:hover { background: #243046; }
.ff-btn:active { transform: scale(0.97); }
.ff-btn-primary { background: var(--ff-accent); border-color: var(--ff-accent-dark); color: #fff; }
.ff-btn-primary:hover { background: var(--ff-accent-dark); }
.ff-btn-big { width: 100%; font-size: 1.05rem; padding: 14px; margin: 12px 0; }
.ff-btn-ghost { background: transparent; }
.ff-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 6px; }
.ff-chip {
    background: var(--ff-card);
    border: 1px solid var(--ff-line);
    color: var(--ff-dim);
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.88rem;
    cursor: pointer;
}
.ff-chip-active { background: var(--ff-accent); border-color: var(--ff-accent-dark); color: #fff; }
.ff-check { display: flex; align-items: center; gap: 8px; margin-top: 12px; color: var(--ff-dim); font-size: 0.92rem; cursor: pointer; }
.ff-check input { width: 17px; height: 17px; accent-color: var(--ff-accent); }
.ff-results { display: grid; gap: 8px; margin-top: 16px; }
.ff-result {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    background: var(--ff-card);
    border: 1px solid var(--ff-line);
    border-radius: 10px;
    padding: 10px 12px;
    cursor: pointer;
    transition: border-color .15s ease;
}
.ff-result:hover { border-color: var(--ff-accent); }
.ff-result-name { font-size: 1.05rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ff-result-style { font-size: 0.75rem; color: var(--ff-dim); display: block; }
.ff-copy {
    flex: 0 0 auto;
    background: transparent;
    border: 1px solid var(--ff-line);
    color: var(--ff-dim);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 0.8rem;
    cursor: pointer;
}
.ff-copy.ff-copied { color: var(--ff-green); border-color: var(--ff-green); }
.ff-hint { color: var(--ff-dim); font-size: 0.85rem; margin: 14px 0 0; }
.ff-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; border-bottom: 1px solid var(--ff-line); padding-bottom: 12px; }
.ff-tab {
    background: transparent;
    border: 1px solid transparent;
    color: var(--ff-dim);
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
}
.ff-tab-active { background: var(--ff-card); color: var(--ff-text); border-color: var(--ff-line); }
.ff-symgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(46px, 1fr)); gap: 8px; margin-top: 14px; }
.ff-sym {
    background: var(--ff-card);
    border: 1px solid var(--ff-line);
    color: var(--ff-text);
    border-radius: 10px;
    font-size: 1.3rem;
    padding: 10px 0;
    cursor: pointer;
    text-align: center;
    transition: transform .08s ease, border-color .15s ease;
}
.ff-sym:hover { border-color: var(--ff-accent); }
.ff-sym:active { transform: scale(0.92); }
.ff-symgroup { grid-column: 1 / -1; color: var(--ff-dim); font-size: 0.8rem; text-transform: uppercase; letter-spacing: .06em; margin-top: 8px; }
@media (max-width: 520px) {
    .ff-tool { padding: 16px; }
    .ff-row .ff-btn { flex: 1 1 auto; }
}