:root {
    /* Light Mode Variables - More Vibrant */
    --bg-gradient-start: #f8f9fa;
    --bg-gradient-end: #e9ecef;
    --card-bg: rgba(255, 255, 255, 0.85); /* Glassmorphism base */
    --card-border: rgba(255, 255, 255, 0.5);
    --text-color: #212529;
    --accent-color: #ff6b6b;
    --accent-gradient: linear-gradient(135deg, #ff6b6b, #fa5252);
    --button-text: #ffffff;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s;
    --header-bg: rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] {
    /* Dark Mode Variables - Deep & Rich */
    --bg-gradient-start: #1a1b1e;
    --bg-gradient-end: #101113;
    --card-bg: rgba(37, 38, 43, 0.85);
    --card-border: rgba(255, 255, 255, 0.05);
    --text-color: #e9ecef;
    --accent-color: #fab005;
    --accent-gradient: linear-gradient(135deg, #fab005, #fcc419);
    --button-text: #1a1b1e;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --header-bg: rgba(26, 27, 30, 0.5);
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-color);
    transition: background 0.5s ease, color var(--transition-speed);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--card-border);
}

.logo {
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Theme Toggle Button */
#theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-color);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    backdrop-filter: blur(4px);
}

#theme-toggle:hover {
    transform: rotate(15deg) scale(1.1);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* Main Content */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    width: 100%;
}

.comments-section {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    /* Explicit background for Disqus readability */
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--card-border);
}

footer {
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
    opacity: 0.7;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
}

/* Custom Element Styles (will be injected by JS, but keeping global defaults here) */
lunch-randomizer {
    display: block;
    width: 100%;
    max-width: 600px;
}