:root {
    --background-color: #121212;
    --text-color: #FFFFFF;
    --primary-accent-color: #00FFFF;
    --secondary-accent-color: #FF00FF;
    --card-background-color: rgba(30, 30, 30, 0.7);
    --card-border-color: rgba(255, 255, 255, 0.2);
    --font-family-heading: 'Montserrat', sans-serif;
    --font-family-body: 'Open Sans', sans-serif;
}

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

body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-family-body);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: linear-gradient(45deg, rgba(0, 255, 255, 0.05), rgba(255, 0, 255, 0.05));
}

header {
    text-align: center;
    padding: 2rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    background-color: rgba(18, 18, 18, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border-color);
    z-index: 1000;
}

header h1 {
    font-family: var(--font-family-heading);
    font-size: 3rem;
    color: var(--primary-accent-color);
    text-shadow: 0 0 10px var(--primary-accent-color), 0 0 20px var(--primary-accent-color);
}

#content-stream {
    padding-top: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    padding-bottom: 2.5rem;
}

.card {
    width: 90%;
    max-width: 600px;
    background-color: var(--card-background-color);
    border: 1px solid var(--card-border-color);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 255, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    min-height: 400px;
    display: flex;
    flex-direction: column; /* Changed to column */
    justify-content: space-between; /* Changed to space-between */
    background-size: cover;
    background-position: center;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.card-content {
    padding: 2rem;
    text-align: center;
    flex-grow: 1; /* Allow content to grow */
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card-text {
    font-size: 1.6rem;
    font-family: var(--font-family-heading);
    color: var(--text-color);
    text-shadow: 0 0 8px rgba(0,0,0,0.8);
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    padding: 1rem;
    background-color: rgba(0, 0, 0, 0.3);
}

.card-footer button {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: 1rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

.card-footer button:hover {
    color: var(--primary-accent-color);
    transform: scale(1.1);
}

.like-btn.liked {
    color: var(--secondary-accent-color);
}

/* Poll Card */
.poll-options {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.poll-option {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--card-border-color);
    padding: 0.75rem;
    border-radius: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.poll-option:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.poll-option .percentage-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background-color: var(--primary-accent-color);
    opacity: 0.5;
    width: 0;
    transition: width 0.5s ease;
}

.poll-option .option-text {
    position: relative;
    z-index: 1;
}

/* Fact Card (Flip Animation) */
.fact-card {
    perspective: 1000px;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    cursor: pointer;
    flex-grow: 1; /* Make inner fill the card */
}

.fact-card.is-flipped .card-inner {
    transform: rotateY(180deg);
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.card-back {
    transform: rotateY(180deg);
    background-color: var(--card-background-color); /* Same as card */
}

/* Quote Card */
.quote-card blockquote {
    font-style: italic;
}

.quote-card cite {
    display: block;
    margin-top: 1rem;
    font-size: 1rem;
    color: var(--primary-accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }

    .card-text {
        font-size: 1.3rem;
    }
}