:root {
    --bg: #e9f7ef;            /* helles Praxisgrün */
    --accent: #5bbf7a;        /* sattes Grün */
    --accent-dark: #388e5c;   /* dunkleres Grün */
    --accent-soft: #fff8e6;   /* weich-beige */
    --danger: #e57373;
    --card-bg: #ffffff;
    --text: #143222;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #f5fff9 0, var(--bg) 50%, #d7efdf 100%);
    color: var(--text);
    display: flex;
    justify-content: center;
}

.wrapper {
    max-width: 1100px;
    width: 100%;
    padding: 16px;
}

/* HEADER */

header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.logo {
    width: 80px;
    height: 80px;
    border-radius: 999px;
    object-fit: cover;
    border: 3px solid var(--accent);
    background: #fff;
}

.header-text h1 {
    margin: 0;
    font-size: clamp(1.6rem, 2.4vw, 2.3rem);
    color: var(--accent-dark);
}

.header-text p {
    margin: 4px 0 0;
    font-size: 0.95rem;
}

/* GAME CARD */

.game-card {
    background: var(--accent-soft);
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
    border: 1px solid rgba(0,0,0,0.04);
}

/* CONTROLS */

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
}

.controls label {
    font-weight: 600;
    font-size: 0.95rem;
}

select,
button,
input[type="text"] {
    padding: 8px 12px;
    border-radius: 999px;
    border: 2px solid var(--accent);
    background: #fff;
    font-size: 0.95rem;
    cursor: pointer;
}

input[type="text"] {
    min-width: 160px;
}

button {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent-dark);
    font-weight: 600;
}

button:hover {
    background: var(--accent-dark);
}

.mode-toggle {
    margin-left: auto;
    display: flex;
    gap: 6px;
}

.mode-btn {
    background: #fff;
    color: var(--accent-dark);
    border-radius: 999px;
    padding: 6px 12px;
    border: 1px solid var(--accent-dark);
    font-size: 0.85rem;
}

.mode-btn.active {
    background: var(--accent-dark);
    color: #fff;
}

/* DINO + AUFGABE */

.dino-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.dino {
    font-size: 3rem;
}

.dino-badge {
    background: #fff;
    border-radius: 999px;
    padding: 6px 14px;
    border: 2px solid var(--accent-dark);
    font-size: 0.95rem;
}

.dino-badge span.sound {
    font-weight: 700;
    color: var(--accent-dark);
}

.instruction {
    background: rgba(76, 175, 122, 0.1);
    border-left: 4px solid var(--accent-dark);
    padding: 10px 12px;
    border-radius: 10px;
    margin-bottom: 14px;
    font-size: 1rem;
}

/* KLICK-KARTEN */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
}

.item-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 12px 10px;
    text-align: center;
    box-shadow: 0 3px 9px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    user-select: none;
    transition: transform 0.1s ease, box-shadow 0.1s ease, border 0.1s ease, background 0.1s ease;
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    min-height: 110px;
}

.item-card .icon {
    font-size: 2.2rem;
    margin-bottom: 6px;
}

.item-card .label {
    font-size: 1rem;
    font-weight: 600;
}

.item-card .anlaut {
    font-size: 0.8rem;
    margin-top: 4px;
    opacity: 0.7;
}

.item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.12);
}

.item-card.correct {
    background: #e0f7ec;
    border-color: var(--accent-dark);
}

.item-card.wrong {
    background: #fde0e0;
    border-color: var(--danger);
    animation: shake 0.25s linear;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* STATUS */

.status-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
    margin-top: 14px;
    font-size: 0.95rem;
}

.status-bar .score {
    font-weight: 600;
}

.status-bar .hint {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* DRAG & DROP */

.drag-area {
    margin-top: 10px;
}

.drag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 12px;
}

.drag-source {
    flex: 1 1 260px;
    min-height: 120px;
    background: #f7fcf9;
    border-radius: 14px;
    padding: 10px;
    border: 2px dashed var(--accent);
}

.drag-targets {
    flex: 1 1 260px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.drop-zone {
    flex: 1 1 calc(50% - 4px);
    min-height: 100px;
    background: #ffffff;
    border-radius: 14px;
    padding: 8px;
    border: 2px dashed var(--accent-dark);
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 6px;
}

.drop-zone h3 {
    margin: 0 0 4px;
    font-size: 0.9rem;
    text-align: center;
    width: 100%;
    color: var(--accent-dark);
}

.drag-chip {
    padding: 4px 8px;
    border-radius: 999px;
    background: #f1f1f1;
    cursor: grab;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.9rem;
}

.drag-chip .icon {
    font-size: 1.2rem;
}

.drag-chip.dragging {
    opacity: 0.5;
}

.drop-zone.highlight {
    background: #e7f7ef;
}

.drag-info {
    font-size: 0.85rem;
    opacity: 0.9;
    margin-top: 4px;
}

/* REWARD / URKUNDE-OVERLAY */

.reward-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.reward-box {
    background: #ffffff;
    border-radius: 20px;
    padding: 24px 20px;
    max-width: 380px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    position: relative;
    overflow: hidden;
}

.reward-box h2 {
    margin: 0 0 6px;
    font-size: 1.6rem;
    color: var(--accent-dark);
}

.reward-box p {
    margin: 4px 0 12px;
}

.reward-dino {
    font-size: 3.2rem;
    margin-bottom: 6px;
}

.reward-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.reward-close,
.reward-cert {
    padding: 8px 16px;
    border-radius: 999px;
    border: none;
    background: var(--accent-dark);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

.reward-cert {
    background: #ffb300;
    color: #5d3a00;
}

/* Konfetti im Reward-Box */

.confetti {
    position: absolute;
    width: 8px;
    height: 12px;
    background: #ffc107;
    top: -20px;
    animation: fall 1s linear forwards;
}

@keyframes fall {
    to {
        transform: translateY(260px) rotate(180deg);
        opacity: 0;
    }
}

/* FOOTER */

footer {
    margin-top: 20px;
    font-size: 0.75rem;
    text-align: center;
    opacity: 0.8;
}

/* RESPONSIVE */

@media (max-width: 700px) {
    header {
        flex-direction: row;
        align-items: center;
    }
    .logo {
        width: 64px;
        height: 64px;
    }
}