:root {
    --bg-color: #f0f0f0;
    --container-bg: white;
    --text-color: #333;
    --subtitle-color: #666;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --btn-bg: #FFC107; /* Banana Yellow/Amber */
    --btn-hover: #FFB300;
    --btn-text: #3e2723; /* Dark Brown text for contrast */
    --highlight-color: #FF6F00;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --container-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --subtitle-color: #aaa;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --btn-bg: #FFD54F;
    --btn-hover: #FFCA28;
    --btn-text: #3e2723;
    --highlight-color: #FFAB91;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    text-align: center;
    background-color: var(--container-bg);
    padding: 3rem 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 25px var(--shadow-color);
    transition: background-color 0.3s, box-shadow 0.3s;
    position: relative;
    max-width: 400px;
    width: 90%;
}

.controls {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.3s, color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.icon-btn:hover {
    background-color: var(--shadow-color);
}

h1 {
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.subtitle {
    color: var(--subtitle-color);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.menu-display {
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    border: 2px dashed var(--subtitle-color);
    border-radius: 10px;
    padding: 1.5rem;
    transition: opacity 0.2s ease-in-out;
    position: relative;
    overflow: hidden;
}

.menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
}

.menu-display img {
    width: 100%;
    height: 250px;
    border-radius: 12px;
    box-shadow: 0 6px 12px var(--shadow-color);
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease-in;
    background-color: var(--shadow-color);
}

.menu-name {
    font-size: 1.8rem;
    color: var(--highlight-color);
    font-weight: bold;
    margin-top: 0.5rem;
}

.placeholder {
    font-size: 1.2rem;
    color: var(--subtitle-color);
    font-weight: normal;
}

.loading {
    font-size: 1.2rem;
    color: var(--highlight-color);
    font-weight: bold;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; }
    100% { opacity: 0.5; }
}

.ai-badge {
    font-size: 0.7rem;
    background-color: #333;
    color: #FFC107;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#recommend-btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border: none;
    border-radius: 50px;
    background-color: var(--btn-bg);
    color: var(--btn-text);
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    font-weight: bold;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

#recommend-btn:hover {
    background-color: var(--btn-hover);
    transform: translateY(-2px);
}

#recommend-btn:active {
    transform: translateY(0);
}