/* ================================================
   SLIDER CAPTCHA
   ================================================ */

.sc-wrap {
    margin: 20px 0;
    user-select: none;
    -webkit-user-select: none;
}

.sc-track {
    position: relative;
    height: 58px;
    background: #f3f4f6;
    border-radius: 29px;
    border: 2px solid #e5e7eb;
    overflow: hidden;
    transition: border-color 0.3s;
}

.sc-track.sc-done {
    border-color: #16a34a;
}

/* Growing fill bar */
.sc-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #dcfce7, #bbf7d0);
    border-radius: 29px;
    pointer-events: none;
    transition: background 0.4s;
}

.sc-track.sc-done .sc-fill {
    background: linear-gradient(90deg, #16a34a, #22c55e);
}

/* Store target on the right */
.sc-target {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.7rem;
    line-height: 1;
    opacity: 0.25;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
    z-index: 1;
}

.sc-track.sc-done .sc-target {
    opacity: 1;
    transform: translateY(-50%) scale(1.15);
}

/* Draggable knob */
.sc-knob {
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    line-height: 1;
    cursor: grab;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    z-index: 2;
    touch-action: none;
    transition: box-shadow 0.2s;
}

.sc-knob:active {
    cursor: grabbing;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.22);
}

.sc-track.sc-done .sc-knob {
    cursor: default;
    box-shadow: 0 2px 10px rgba(22, 163, 74, 0.3);
}

/* Instruction / success text */
.sc-hint,
.sc-done-msg {
    text-align: center;
    font-size: 0.78rem;
    font-family: 'Roboto', sans-serif;
    margin: 7px 0 0;
}

.sc-hint {
    color: #9ca3af;
}

.sc-done-msg {
    display: none;
    color: #16a34a;
    font-weight: 700;
}

/* Error state */
.sc-error-msg {
    display: none;
    text-align: center;
    font-size: 0.76rem;
    color: #dc2626;
    margin: 6px 0 0;
    font-family: 'Roboto', sans-serif;
}

.sc-error-msg.sc-show { display: block; }

/* Shake on failed release */
@keyframes sc-shake {
    0%, 100% { transform: translateX(0); }
    20%       { transform: translateX(-7px); }
    40%       { transform: translateX(7px); }
    60%       { transform: translateX(-4px); }
    80%       { transform: translateX(4px); }
}

.sc-track.sc-shake {
    animation: sc-shake 0.38s ease;
}