@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;700&display=swap');

:root {
    --background-color: #1a1a1a;
    --container-background: #2a2a2a;
    --primary-color: #ffde00;
    --text-color: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --glow-color: rgba(255, 222, 0, 0.7);
}

html[data-theme='light'] {
    --background-color: #f0f0f0;
    --container-background: #ffffff;
    --primary-color: #007aff;
    --text-color: #000000;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --glow-color: rgba(0, 122, 255, 0.5);
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
    background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.01) 25%, transparent 25%),
                      linear-gradient(-45deg, rgba(255, 255, 255, 0.01) 25%, transparent 25%),
                      linear-gradient(45deg, transparent 75%, rgba(255, 255, 255, 0.01) 75%),
                      linear-gradient(-45deg, transparent 75%, rgba(255, 255, 255, 0.01) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.theme-switch-wrapper {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.language-selector {
    padding: 5px 10px;
    border-radius: 20px;
    border: 1px solid var(--primary-color);
    background-color: var(--container-background);
    color: var(--text-color);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
    outline: none;
}

.language-selector:hover {
    box-shadow: 0 0 5px var(--glow-color);
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}


.container {
    background-color: var(--container-background);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px var(--shadow-color);
    max-width: 500px;
    width: 90%;
    transition: background-color 0.3s;
    overflow: hidden; /* For tab animations */
}

/* Tabs */
.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--background-color);
}

.tab-btn {
    background: none;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.6;
    transition: all 0.3s;
    font-weight: bold;
    border-bottom: 3px solid transparent;
}

.tab-btn:hover {
    opacity: 1;
}

.tab-btn.active {
    opacity: 1;
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

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

/* Recipe Styles */
.recipe-container {
    text-align: left;
    padding: 0 10px;
}

.recipe-container h3 {
    color: var(--primary-color);
    border-bottom: 1px solid var(--primary-color);
    padding-bottom: 5px;
    margin-top: 20px;
}

.ingredients-list, .instructions-list {
    padding-left: 20px;
    line-height: 1.6;
}

.ingredients-list li, .instructions-list li {
    margin-bottom: 8px;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    transition: color 0.3s;
}

.lotto-numbers {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.number {
    background-color: var(--background-color);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    font-weight: bold;
    box-shadow: 0 5px 15px var(--shadow-color);
    animation: appear 0.5s ease-out forwards;
    opacity: 0;
    transition: background-color 0.3s, box-shadow 0.3s;
}

@keyframes appear {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

#generate-btn, #recommend-btn {
    background-color: var(--primary-color);
    color: var(--background-color);
    border: none;
    padding: 15px 30px;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 0 15px var(--glow-color);
}

#generate-btn:hover, #recommend-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 25px var(--glow-color);
}

#generate-btn svg, #recommend-btn svg {
    stroke: var(--background-color);
    transition: stroke 0.3s;
}

.dinner-menu-display {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 40px;
    min-height: 250px; /* Increased to accommodate image */
    display: flex;
    flex-direction: column; /* Stack image and text */
    justify-content: center;
    align-items: center;
    color: var(--text-color);
    gap: 20px;
}

#dinner-menu-img {
    width: 100%;
    max-width: 300px;
    height: 200px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-color);
    display: none; /* Hidden initially */
}