/* TruthLens Prototype Styles */

:root {
    --high-color: #22c55e;
    --medium-color: #f59e0b;
    --low-color: #ef4444;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header */
.header {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--bg-card);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 2rem;
    font-weight: bold;
}

.logo-icon {
    font-size: 2.5rem;
}

.tagline {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Container */
.container {
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Demo Section */
.demo-section h2 {
    margin-bottom: 0.5rem;
}

.description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Feed Posts */
.feed {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.post {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--bg-card);
}

.post:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.post.filtered {
    opacity: 0.3;
    filter: grayscale(50%);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.avatar {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.user-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.username {
    font-weight: 600;
}

.badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    background: var(--accent);
}

.badge.verified {
    background: var(--high-color);
    color: #000;
}

.badge.new-account {
    background: var(--low-color);
}

/* TruthLens Badge */
.truthlens-badge {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.75rem;
    cursor: help;
    transition: transform 0.2s;
}

.truthlens-badge:hover {
    transform: scale(1.1);
}

.truthlens-badge.high {
    background: var(--high-color);
    color: #000;
    box-shadow: 0 0 10px var(--high-color);
}

.truthlens-badge.medium {
    background: var(--medium-color);
    color: #000;
    box-shadow: 0 0 10px var(--medium-color);
}

.truthlens-badge.low {
    background: var(--low-color);
    color: #fff;
    box-shadow: 0 0 10px var(--low-color);
}

.post-content {
    margin-bottom: 0.75rem;
}

.post-content p {
    color: var(--text-primary);
}

.post-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    max-width: 500px;
    width: 100%;
    padding: 1.5rem;
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.credibility-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    font-weight: bold;
}

.credibility-circle.high {
    background: var(--high-color);
    color: #000;
}

.credibility-circle.medium {
    background: var(--medium-color);
    color: #000;
}

.credibility-circle.low {
    background: var(--low-color);
    color: #fff;
}

.credibility-label {
    font-size: 1.25rem;
    font-weight: 600;
}

.credibility-label.high { color: var(--high-color); }
.credibility-label.medium { color: var(--medium-color); }
.credibility-label.low { color: var(--low-color); }

.modal-body h4 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-body ul {
    list-style: none;
    padding: 0;
}

.modal-body li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--bg-card);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-body li:last-child {
    border-bottom: none;
}

.flag-good { color: var(--high-color); }
.flag-warn { color: var(--medium-color); }
.flag-bad { color: var(--low-color); }

/* Features Section */
.features-section {
    margin-top: 3rem;
}

.features-section h2 {
    margin-bottom: 1.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.feature-card {
    background: var(--bg-secondary);
    padding: 1.25rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--bg-card);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.feature-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Filter Section */
.filter-section {
    margin-top: 3rem;
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--bg-card);
}

.filter-section h2 {
    margin-bottom: 1rem;
}

.filter-controls {
    margin-bottom: 1rem;
}

.filter-controls label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.filter-controls input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--bg-card);
    outline: none;
    -webkit-appearance: none;
}

.filter-controls input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
}

.threshold-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.filter-hint {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--bg-card);
    margin-top: 3rem;
}

.prototype-note {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 600px) {
    .header {
        padding: 1.5rem 1rem;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
}