/* Card System */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-glow);
}

.info-card:hover::before {
    opacity: 1;
}

/* GitHub Cards */
.github-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.card-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-weight: 700;
    border-radius: 6px;
    font-size: 0.8rem;
}

.card-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: rgba(255, 184, 0, 0.15);
    color: var(--color-warning);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.badge-icon {
    font-size: 0.7rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.card-title a:hover {
    color: var(--accent-primary);
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.lang-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.lang-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.trend-badge {
    font-size: 0.75rem;
    color: var(--color-success);
    font-family: var(--font-mono);
    font-weight: 600;
}

/* Twitter Cards */
.twitter-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.header-card {
    text-align: center;
    padding: 24px;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.header-meta {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-family: var(--font-mono);
}

.topics-card {
    padding: 20px;
}

.topics-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-warning);
}

.topics-icon {
    font-size: 1.1rem;
}

.topics-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.topic-chip {
    background: rgba(255, 184, 0, 0.1);
    color: var(--color-warning);
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(255, 184, 0, 0.2);
    transition: all 0.3s ease;
    cursor: default;
}

.topic-chip:hover {
    background: rgba(255, 184, 0, 0.2);
    transform: translateY(-2px);
}

.tweets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.tweet-card {
    display: flex;
    flex-direction: column;
}

.tweet-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.tweet-author-name {
    font-weight: 600;
    color: var(--accent-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.tweet-time {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.tweet-text {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
    flex: 1;
}

.tweet-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    padding: 8px 12px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    align-self: flex-start;
}

.tweet-link-btn:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--accent-primary);
    gap: 10px;
}

/* Empty State */
.card-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
    color: var(--text-muted);
    font-size: 1rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px;
    gap: 16px;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .card-grid,
    .tweets-grid {
        grid-template-columns: 1fr;
    }
}