.hearts-theme {
    --primary-color: #ff4d6d;
    --secondary-color: #ff758f;
    --accent-color: #ff8fa3;
    --background-color: #fff0f3;
    --text-color: #590d22;
    --button-color: #ff4d6d;
    --button-hover-color: #ff758f;
    --border-color: #ffb3c1;
    --shadow-color: rgba(255, 77, 109, 0.3);
    font-family: 'Pacifico', cursive;
}

.hearts-theme .container {
    width: 100%;
    max-width: 500px;
    text-align: center;
    padding: 20px;
    background-color: var(--background-color);
    border: 4px solid var(--border-color);
    box-shadow: inset 0 0 0 2px var(--accent-color);
    border-radius: 15px;
    margin: 20px 0;
}

@media (max-width: 480px) {
    .hearts-theme .container {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow-x: hidden;
        border-radius: 10px;
        padding: 15px;
        margin: 10px 0;
    }
}

.hearts-theme h1,
.hearts-theme h2,
.hearts-theme h3,
.hearts-theme .question,
.hearts-theme .result-title,
.hearts-theme span,
.hearts-theme p {
    font-family: 'Pacifico', cursive;
}

.hearts-theme .menu-btn,
.hearts-theme .selection-btn {
    font-family: 'Pacifico', cursive;
}

.hearts-theme .selection-btn .selection-header,
.hearts-theme .selection-btn .selection-desc {
    font-family: 'Pacifico', cursive;
}

.hearts-theme .menu-btn {
    background-color: var(--button-color);
    border: 2px solid var(--accent-color);
    color: white;
    box-shadow: 0 4px 8px var(--shadow-color);
}

.hearts-theme .menu-btn:hover {
    background-color: var(--button-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.hearts-theme .question {
    background-color: var(--background-color);
    border: 3px solid var(--border-color);
    color: var(--text-color);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.hearts-theme .option {
    background-color: var(--background-color);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.hearts-theme .option:hover {
    background-color: var(--secondary-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.hearts-theme .option.correct {
    background-color: #2ecc71;
    border-color: #27ae60;
}

.hearts-theme .option.incorrect {
    background-color: #e74c3c;
    border-color: #c0392b;
}

.hearts-theme .feedback {
    color: var(--accent-color);
}

.hearts-theme .stats .stat {
    background-color: var(--background-color);
    color: var(--accent-color);
    text-shadow: none;
    border: 2px solid var(--accent-color);
    box-shadow: inset 0 0 0 2px var(--accent-color);
}

.hearts-theme .hearts {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 10px 0;
}

.hearts-theme .hearts svg {
    width: 40px;
    height: 40px;
    transition: all 0.3s ease;
}

.hearts-theme .hearts svg:hover {
    transform: scale(1.1);
}

@keyframes heartBeat {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.hearts-theme .hearts svg:not([class*="broken"]) {
    animation: heartBeat 1s infinite;
}

.hearts-theme .heart.broken svg {
    opacity: 0.5;
}

.hearts-theme .result-screen {
    background-color: var(--background-color);
    border: 3px solid var(--border-color);
    box-shadow: 0 8px 16px var(--shadow-color);
}

.hearts-theme .result-title {
    color: var(--accent-color);
}

.hearts-theme .result-stats {
    color: var(--text-color);
}

.hearts-theme .badge {
    border: 3px solid var(--border-color);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.hearts-theme .badge circle {
    fill: var(--primary-color);
}

.hearts-theme .badge text {
    fill: white;
}

.hearts-theme .blocky-character,
.hearts-theme .dots-character {
    display: none !important;
}

.hearts-theme .cute-heart {
    display: block !important;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.hearts-theme .option-btn {
    background-color: var(--primary-color) !important;
    border: 2px solid var(--accent-color) !important;
    color: white !important;
    box-shadow: 0 4px 8px var(--shadow-color) !important;
    transition: all 0.3s ease !important;
    font-weight: bold !important;
}

.hearts-theme .option-btn:hover {
    background-color: var(--secondary-color) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 12px var(--shadow-color) !important;
}

.hearts-theme .option-btn.correct {
    background-color: #2ecc71 !important;
    border-color: #27ae60 !important;
    color: white !important;
    box-shadow: 0 4px 8px rgba(46, 204, 113, 0.4) !important;
    animation: pulse 0.5s ease-in-out !important;
}

.hearts-theme .option-btn.incorrect {
    background-color: #e74c3c !important;
    border-color: #c0392b !important;
    color: white !important;
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.4) !important;
    animation: shake 0.5s ease-in-out !important;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.hearts-theme .hint-btn {
    background-color: var(--primary-color) !important;
    border: 2px solid var(--accent-color) !important;
    color: white !important;
    box-shadow: 0 4px 8px var(--shadow-color) !important;
    transition: all 0.3s ease !important;
}

.hearts-theme .hint-btn:hover {
    background-color: var(--secondary-color) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 12px var(--shadow-color) !important;
}

body.hearts-theme #memo-area .memo-card-front {
    background-color: var(--primary-red);
    border: 2px solid var(--primary-red-dark);
    background-image: linear-gradient(45deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
}

body.hearts-theme #memo-area .memo-card-back {
    background-color: #ff4d6d;
    border: 2px solid #e63950;
    background-image: linear-gradient(45deg, #ff4d6d 0%, #e63950 100%);
}

body.hearts-theme #memo-area .memo-card.matched .memo-card-front,
body.hearts-theme #memo-area .memo-card.matched .memo-card-back {
    border: 4px solid var(--primary-green);
    box-shadow: 0 0 20px rgba(46, 204, 113, 0.7);
}

body.hearts-theme #level-treasurer {
    background-color: var(--primary-red) !important;
    border: 2px solid var(--primary-red-dark);
}

.hearts-theme .difficulty-level.easy {
    background-color: #2ecc71;
    color: white;
}

.hearts-theme .difficulty-level.medium {
    background-color: #f1c40f;
    color: white;
}

.hearts-theme .difficulty-level.hard {
    background-color: #e74c3c;
    color: white;
}

.hearts-theme .difficulty-level.expert {
    background-color: #9b59b6;
    color: white;
}

.hearts-theme .tab-btn {
    background-color: rgba(255, 77, 109, 0.7);
    border-color: #ffb3c1;
    color: #590d22;
    box-shadow: 0 5px 15px rgba(255, 77, 109, 0.3);
}

.hearts-theme .tab-btn:hover {
    background-color: rgba(255, 117, 143, 0.8);
    box-shadow: 0 8px 20px rgba(255, 77, 109, 0.4);
}

.hearts-theme .tab-btn.active {
    background-color: rgba(255, 143, 163, 0.7);
    border-color: #ffc2cc;
    color: #590d22;
    box-shadow: 0 5px 15px rgba(255, 143, 163, 0.3);
}

.hearts-theme .tab-btn.active:hover {
    background-color: rgba(255, 166, 186, 0.8);
    box-shadow: 0 8px 20px rgba(255, 143, 163, 0.4);
}

.hearts-theme .tab-btn-desc {
    color: #590d22;
    opacity: 0.9;
}

.hearts-theme .tab-btn-header {
    color: #590d22;
    font-family: 'Pacifico', cursive;
    font-size: 1.6rem;
}

.hearts-theme .tab-btn-icon {
    font-size: 2.8rem;
    animation: heartBeat 1.5s infinite;
}

.hearts-theme #achievements-modal .modal-content {
    background-color: var(--background-color);
    border: 4px solid var(--border-color);
    box-shadow: inset 0 0 0 2px var(--accent-color), 0 8px 20px var(--shadow-color);
    border-radius: 20px;
    font-family: 'Pacifico', cursive;
}

.hearts-theme #achievements-modal h2 {
    color: var(--text-color);
    font-size: 2rem;
    margin-bottom: 25px;
    text-shadow: 1px 1px 2px rgba(255, 77, 109, 0.2);
}

.hearts-theme #achievements-modal .close-modal {
    background-color: var(--button-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: all 0.3s;
}

.hearts-theme #achievements-modal .close-modal:hover {
    background-color: var(--button-hover-color);
    transform: scale(1.1);
}

.hearts-theme #achievements-modal div[style*="display: flex; align-items: center;"] {
    background-color: white;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 4px 10px rgba(255, 143, 163, 0.2);
    transition: all 0.3s;
}

.hearts-theme #achievements-modal div[style*="display: flex; align-items: center;"]:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(255, 143, 163, 0.3);
}

.hearts-theme #achievements-modal span[style*="font-size: 1.5rem;"] {
    font-size: 2rem !important;
    margin-right: 15px;
    animation: heartBeat 1.5s infinite;
}

.hearts-theme #achievements-modal strong {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 2px;
    display: block;
}

.hearts-theme #achievements-modal small {
    color: var(--text-color);
    font-size: 0.9rem;
    font-family: 'Quicksand', sans-serif;
}

.hearts-theme .level-btn,
.hearts-theme .stats-btn {
    background-color: var(--button-color);
    border: 2px solid var(--accent-color);
    color: white;
    box-shadow: 0 4px 8px var(--shadow-color);
    border-radius: 25px;
    font-family: 'Pacifico', cursive;
    transition: all 0.3s ease;
}

.hearts-theme .level-btn:hover,
.hearts-theme .stats-btn:hover {
    background-color: var(--button-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

.hearts-theme .result-screen .stats-btn,
.hearts-theme .result-screen .level-btn,
.hearts-theme .result-screen .menu-btn {
    background-color: var(--button-color);
    border: 2px solid var(--accent-color);
    color: white;
    box-shadow: 0 4px 8px var(--shadow-color);
    border-radius: 25px;
    font-family: 'Pacifico', cursive;
    transition: all 0.3s ease;
    padding: 12px 25px;
    width: 80%;
    max-width: 300px;
    margin: 10px;
}

.hearts-theme .result-screen .stats-btn:hover,
.hearts-theme .result-screen .level-btn:hover,
.hearts-theme .result-screen .menu-btn:hover {
    background-color: var(--button-hover-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow-color);
}

@media (max-width: 480px) {
    .hearts-theme .result-screen .stats-btn,
    .hearts-theme .result-screen .level-btn,
    .hearts-theme .result-screen .menu-btn {
        width: 100%;
        max-width: 100%;
    }

    .hearts-theme .tab-btn-icon {
        font-size: 2rem;
    }
}