* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

:root {
    --primary-color: #FF6B6B;
    --secondary-color: #4ECDC4;
    --accent-color: #FFE66D;
    --text-color: #2C3E50;
    --light-bg: #F7F9FC;
    --success-color: #6BCB77;
    --streak-color: #FF9F1C;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 600px;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

h1 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 20px;
    text-align: center;
}

.message-container {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 25px;
    text-align: center;
    border: 2px solid var(--accent-color);
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.5s ease;
    pointer-events: none;
}

.message-container.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.sweet-message {
    color: var(--text-color);
    font-size: 1.1rem;
    line-height: 1.5;
}

.streak-container {
    background: var(--light-bg);
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 20px;
    text-align: center;
    border: 2px solid var(--streak-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.streak-icon {
    font-size: 1.5rem;
    color: var(--streak-color);
}

.streak-text {
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 500;
}

.streak-count {
    color: var(--streak-color);
    font-weight: 700;
}

.reward-message {
    background: var(--light-bg);
    padding: 15px;
    border-radius: 12px;
    margin-top: 20px;
    text-align: center;
    border: 2px solid var(--streak-color);
    color: var(--text-color);
    font-size: 1rem;
    display: none;
}

.reward-message.show {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.progress-container {
    margin: 20px 0;
    padding: 15px;
    background: var(--light-bg);
    border-radius: 12px;
    border: 2px solid var(--secondary-color);
}

.progress-bar {
    width: 100%;
    height: 20px;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--success-color));
    width: 0%;
    transition: width 0.5s ease;
}

.progress-text {
    text-align: center;
    margin-top: 10px;
    color: var(--text-color);
    font-weight: 500;
}

h2 {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin: 30px 0 15px;
    text-align: center;
}

.countdown-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.countdown-item {
    background: var(--light-bg);
    padding: 15px;
    border-radius: 12px;
    min-width: 80px;
    text-align: center;
    border: 2px solid var(--secondary-color);
    transition: transform 0.2s ease;
}

.countdown-item:hover {
    transform: translateY(-3px);
}

.countdown-item span {
    display: block;
}

.countdown-item span:first-child {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.countdown-item .label {
    font-size: 0.8rem;
    color: var(--text-color);
    text-transform: uppercase;
    font-weight: 500;
}

.quests-container {
    margin-top: 30px;
}

.quest-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: var(--light-bg);
    margin-bottom: 12px;
    border-radius: 12px;
    transition: all 0.2s ease;
    border: 2px solid transparent;
}

.quest-item:hover {
    background: white;
    border-color: var(--accent-color);
}

.quest-item input[type="checkbox"] {
    margin-right: 12px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--success-color);
}

.quest-item label {
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
    flex: 1;
    transition: color 0.2s ease;
}

.quest-item input[type="checkbox"]:checked + label {
    text-decoration: line-through;
    color: var(--success-color);
}

.back-button {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    margin-top: 20px;
    transition: all 0.2s ease;
    border: none;
}

.back-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 1.8rem;
    }

    .countdown-item {
        min-width: 70px;
        padding: 10px;
    }

    .countdown-item span:first-child {
        font-size: 1.5rem;
    }
}