:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --complaint-color: #ef4444;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(239, 68, 68, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.app-header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease;
}

.app-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.app-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.tab-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.tab-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

/* Composer */
.composer {
    margin-bottom: 3rem;
    transform: translateY(0);
    transition: var(--transition);
}
.composer:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

.composer h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.submit-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: var(--transition);
}

.submit-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}
.submit-btn:active {
    transform: translateY(0);
}

/* Posts Feed */
.posts-feed {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 0.5s ease forwards;
    transition: var(--transition);
}

.post-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateX(4px);
}

.post-votes {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    min-width: 50px;
}

.vote-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
}

.vote-btn svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.vote-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
}
.vote-btn:active svg {
    transform: scale(1.3);
}

.vote-count {
    font-weight: 700;
    font-size: 1.1rem;
}

.post-content-wrap {
    flex: 1;
}

.post-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 0.75rem;
    word-break: break-word;
}

.post-badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-weight: 700;
}

.badge-discussion {
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-complaint {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.post-body {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    white-space: pre-wrap;
}

.post-meta {
    font-size: 0.8rem;
    color: rgba(148, 163, 184, 0.7);
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Comments */
.comments-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
}

.comments-section h4 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.comment {
    background: rgba(15, 23, 42, 0.4);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.comment-votes {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 30px;
}

.comment-vote-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.comment-vote-btn:hover {
    color: var(--accent-color);
}

.comment-vote-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.comment-vote-count {
    font-size: 0.8rem;
    font-weight: bold;
}

.comment-content {
    flex: 1;
}

.comment-body {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.comment-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.no-comments {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-style: italic;
}

.comment-form {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 9999px; /* Pill shape */
    padding: 0.25rem 0.25rem 0.25rem 1rem;
    transition: var(--transition);
}

.comment-form:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.comment-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    padding: 0.5rem 0;
}

.comment-input:focus {
    outline: none;
}

.comment-submit {
    background: var(--accent-color);
    color: white;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.comment-submit svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    margin-left: 2px;
}

.comment-submit:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}

.comment-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: scale(1);
}

/* Responsive Mobile Styles */
@media (max-width: 768px) {
    .app-container {
        padding: 1rem;
    }
    
    .app-header h1 {
        font-size: 2rem;
    }
    
    .glass-panel {
        padding: 1.25rem;
    }
    
    .tabs {
        gap: 0.5rem;
    }
    
    .tab-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .post-card {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }
    
    .post-votes {
        flex-direction: row;
        width: 100%;
        justify-content: space-between;
        border-bottom: 1px solid var(--glass-border);
        padding-bottom: 0.75rem;
    }
    
    .post-title {
        font-size: 1.1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .comment {
        flex-direction: column;
        padding: 0.75rem;
    }
    
    .comment-votes {
        flex-direction: row;
        width: 100%;
        justify-content: flex-start;
        gap: 0.5rem;
        margin-bottom: 0.5rem;
    }
}