@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');

:root {
    --primary-color: #4a00e0;
    --secondary-color: #8e2de2;
    --light-background: #f0f2f5;
    --light-card-background: #ffffff;
    --light-text-color: #333;
    --light-header-text: #666;
    --light-shadow-color: rgba(0, 0, 0, 0.1);

    --dark-background: #1a1a2e;
    --dark-card-background: #162447;
    --dark-text-color: #e0e0e0;
    --dark-header-text: #a0a0a0;
    --dark-shadow-color: rgba(0, 0, 0, 0.4);

    --font-family: 'Pretendard', sans-serif;
    --background-color: var(--light-background);
    --card-background: var(--light-card-background);
    --text-color: var(--light-text-color);
    --header-text-color: var(--light-header-text);
    --shadow-color: var(--light-shadow-color);
}

body.dark-mode {
    --background-color: var(--dark-background);
    --card-background: var(--dark-card-background);
    --text-color: var(--dark-text-color);
    --header-text-color: var(--dark-header-text);
    --shadow-color: var(--dark-shadow-color);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    width: 100%;
    max-width: 600px;
    text-align: center;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.header-content h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.header-content .highlight {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-content p {
    font-size: 1.1rem;
    color: var(--header-text-color);
}

.theme-toggle-btn {
    background: none;
    border: 2px solid var(--text-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.theme-toggle-btn:hover {
    transform: rotate(15deg);
    border-color: var(--primary-color);
}

.theme-toggle-btn svg {
    stroke: var(--text-color);
    transition: stroke 0.3s;
}

.theme-toggle-btn:hover svg {
    stroke: var(--primary-color);
}

.lotto-card, .history-card {
    background-color: var(--card-background);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px var(--shadow-color);
    margin-bottom: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s;
}

.lotto-card:hover, .history-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-color);
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--text-color);
    font-weight: 700;
}

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

.ball {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light-text-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    animation: popIn 0.5s ease-out forwards;
}

@keyframes popIn {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.generate-btn {
    background-image: linear-gradient(to right, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--light-text-color);
    border: none;
    border-radius: 12px;
    padding: 15px 30px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 5px 15px rgba(74, 0, 224, 0.4);
}

.generate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(74, 0, 224, 0.5);
}

.generate-btn:active {
    transform: translateY(-1px);
}

.history-list {
    list-style-type: none;
    max-height: 200px;
    overflow-y: auto;
    padding-right: 10px;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background-color: var(--background-color);
    border-radius: 10px;
    margin-bottom: 10px;
    animation: slideIn 0.4s ease-out;
    transition: background-color 0.3s;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.history-item .time {
    font-size: 0.9rem;
    color: var(--header-text-color);
}

.history-item .numbers {
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-color);
}

/* Scrollbar styles */
.history-list::-webkit-scrollbar {
    width: 6px;
}

.history-list::-webkit-scrollbar-track {
    background: transparent;
}

.history-list::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 10px;
}

.history-list::-webkit-scrollbar-thumb:hover {
    background: #aaa;
}

@media (max-width: 480px) {
    .header-content h1 {
        font-size: 2rem;
    }

    .lotto-card, .history-card {
        padding: 20px;
    }

    .ball {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
    }

    .generate-btn {
        padding: 12px 25px;
        font-size: 1.1rem;
    }
}