/* ==========================================================
   T-UPSC DRAG AND DROP — front-end styles (lavender theme)
   Solid colours only: no gradients, glass, blur or transparency.
   Visual design only; markup and behaviour are unchanged.
   ========================================================== */

.tupsc-idd-activity {
    --tp-lavender: #E6E0F8;
    --tp-blue: #1D4ED8;
    --tp-blue-dark: #1E40AF;
    --tp-correct: #1B7A34;
    --tp-wrong: #C62828;
    --tp-shadow-card: 0 2px 6px rgba(60, 40, 120, .16);
    --tp-shadow-lift: 0 6px 14px rgba(60, 40, 120, .22);

    box-sizing: border-box;
    max-width: 1000px;
    margin: 30px auto;
    padding: 28px;
    background: var(--tp-lavender);
    border-radius: 22px;
    box-shadow: 0 12px 28px rgba(60, 40, 120, .18), 0 3px 8px rgba(60, 40, 120, .12);
    color: #000;
    font-family: inherit;
    line-height: 1.4;
}

.tupsc-idd-activity,
.tupsc-idd-activity * {
    box-sizing: border-box;
}

/* All text black (buttons are styled separately below) */
.tupsc-idd-activity *:not(button) {
    color: #000 !important;
}

.tupsc-idd-activity .tupsc-idd-title {
    margin-bottom: 18px;
    font-size: 25px;
    font-weight: 800;
    line-height: 1.25;
}

/* ---------- Image card ----------
   The white frame is a BORDER, not padding: drop zones are positioned in %
   of the padding box, which stays exactly the size of the image. */
.tupsc-idd-activity .tupsc-idd-board {
    position: relative;
    width: 100%;
    line-height: 0;
    background: #fff;
    border: 14px solid #fff;
    border-radius: 14px;
    box-shadow: var(--tp-shadow-card);
}

.tupsc-idd-activity .tupsc-idd-image {
    position: relative;
}

.tupsc-idd-activity .tupsc-idd-image img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* ---------- Drop zones ----------
   No fill (the image stays fully visible). A white ring keeps the dashed
   outline readable on dark or light images. */
.tupsc-idd-activity .tupsc-idd-drop {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 35px;
    min-height: 28px;
    background: none;
    border: 2px dashed var(--tp-blue);
    border-radius: 8px;
    box-shadow: 0 0 0 2px #fff;
    line-height: normal;
}

.tupsc-idd-activity .tupsc-idd-drop span {
    max-width: 100%;
    padding: 4px 8px;
    background: #fff;
    border-radius: 8px;
    box-shadow: var(--tp-shadow-card);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.2;
    overflow-wrap: anywhere;
}

.tupsc-idd-activity .tupsc-idd-drop span:empty {
    display: none;
}

.tupsc-idd-activity .tupsc-idd-drop.filled {
    border-style: solid;
}

/* Solid green = correct, dashed red = wrong, plus a ✓ / ✗ badge,
   so the result never relies on colour alone. */
.tupsc-idd-activity .tupsc-idd-drop.correct {
    border: 3px solid var(--tp-correct);
}

.tupsc-idd-activity .tupsc-idd-drop.wrong {
    border: 3px dashed var(--tp-wrong);
}

.tupsc-idd-activity .tupsc-idd-drop.correct::after,
.tupsc-idd-activity .tupsc-idd-drop.wrong::after {
    position: absolute;
    top: -13px;
    right: -13px;
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    box-shadow: var(--tp-shadow-card);
    color: #000;
    font-size: 15px;
    font-weight: 900;
    line-height: 24px;
    text-align: center;
}

.tupsc-idd-activity .tupsc-idd-drop.correct::after { content: "\2713"; }
.tupsc-idd-activity .tupsc-idd-drop.wrong::after   { content: "\2717"; }

/* ---------- Draggable label cards ---------- */

.tupsc-idd-activity .tupsc-idd-items {
    margin-top: 20px;
}

.tupsc-idd-activity .tupsc-idd-items-title {
    margin-bottom: 10px;
    font-weight: 800;
}

.tupsc-idd-activity .tupsc-idd-bank {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tupsc-idd-activity .tupsc-idd-drag {
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    padding: 10px 16px;
    background: #fff;
    border: 2px solid #fff;
    border-radius: 12px;
    box-shadow: var(--tp-shadow-card);
    color: #000;
    font-family: inherit;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    text-transform: none;
    cursor: grab;
    transition: transform .12s ease, box-shadow .12s ease;
}

.tupsc-idd-activity .tupsc-idd-drag:hover {
    background: #fff;
    color: #000;
    transform: translateY(-2px);
    box-shadow: var(--tp-shadow-lift);
}

.tupsc-idd-activity .tupsc-idd-drag:active {
    cursor: grabbing;
    border-color: var(--tp-blue);
    box-shadow: var(--tp-shadow-lift);
}

.tupsc-idd-activity .tupsc-idd-drag:focus-visible {
    outline: 3px solid var(--tp-blue);
    outline-offset: 2px;
}

/* ---------- Buttons ---------- */

.tupsc-idd-activity .tupsc-idd-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.tupsc-idd-activity .tupsc-idd-check,
.tupsc-idd-activity .tupsc-idd-reset {
    appearance: none;
    -webkit-appearance: none;
    margin: 0;
    padding: 12px 26px;
    border: 0;
    border-radius: 10px;
    background: var(--tp-blue);
    color: #fff !important;
    font-family: inherit;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: .4px;
    line-height: 1.2;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(60, 40, 120, .24);
    transition: background-color .12s ease, box-shadow .12s ease;
}

.tupsc-idd-activity .tupsc-idd-check:hover,
.tupsc-idd-activity .tupsc-idd-reset:hover,
.tupsc-idd-activity .tupsc-idd-check:active,
.tupsc-idd-activity .tupsc-idd-reset:active {
    background: var(--tp-blue-dark);
    color: #fff !important;
    box-shadow: 0 4px 10px rgba(60, 40, 120, .3);
}

.tupsc-idd-activity .tupsc-idd-check:focus-visible,
.tupsc-idd-activity .tupsc-idd-reset:focus-visible {
    outline: 3px solid #000;
    outline-offset: 2px;
}

/* ---------- Feedback / score card ---------- */

.tupsc-idd-activity .tupsc-idd-feedback {
    margin-top: 18px;
    padding: 16px 18px;
    background: #fff;
    border-radius: 14px;
    box-shadow: var(--tp-shadow-card);
    font-size: 18px;
}

.tupsc-idd-activity .tupsc-idd-feedback:empty {
    display: none;
}

.tupsc-idd-activity .tupsc-idd-feedback p {
    margin: 6px 0 0;
    font-size: 15px;
}

/* ---------- Small screens ---------- */

@media (max-width: 600px) {
    .tupsc-idd-activity {
        padding: 16px;
        border-radius: 18px;
    }

    .tupsc-idd-activity .tupsc-idd-board {
        border-width: 8px;
    }

    .tupsc-idd-activity .tupsc-idd-drop span {
        padding: 2px 5px;
        font-size: 11px;
    }

    .tupsc-idd-activity .tupsc-idd-check,
    .tupsc-idd-activity .tupsc-idd-reset {
        flex: 1 1 auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .tupsc-idd-activity .tupsc-idd-drag,
    .tupsc-idd-activity .tupsc-idd-check,
    .tupsc-idd-activity .tupsc-idd-reset {
        transition: none;
    }
}