/* CSS Variables - Updated Color Scheme */
:root {
    --primary-bg: #0F0F0F;
    --secondary-bg: #1A1A1A;
    --card-bg: rgba(255, 255, 255, 0.03);
    --accent-bg: rgba(255, 255, 255, 0.08);
    --primary-color: #8B5CF6;
    --primary-dark: #7C3AED;
    --secondary-color: #F97316;
    --accent-color: #06B6D4;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --text-muted: #71717A;
    --border-color: rgba(255, 255, 255, 0.1);
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --gradient-primary: linear-gradient(135deg, #8B5CF6, #F97316);
    --gradient-dark: linear-gradient(135deg, #1A1A1A, #2A2A2A);
    --shadow-light: 0 4px 15px rgba(139, 92, 246, 0.3);
    --shadow-heavy: 0 8px 25px rgba(139, 92, 246, 0.4);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Animation */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: bgFloat 20s ease-in-out infinite;
}

.bg-animation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 600"><defs><filter id="glow"><feGaussianBlur stdDeviation="3" result="coloredBlur"/><feMerge><feMergeNode in="coloredBlur"/><feMergeNode in="SourceGraphic"/></feMerge></filter></defs><g filter="url(%23glow)"><circle cx="200" cy="150" r="2" fill="%238B5CF6" opacity="0.8"><animate attributeName="opacity" values="0.8;0.3;0.8" dur="4s" repeatCount="indefinite"/></circle><circle cx="800" cy="300" r="1.5" fill="%23F97316" opacity="0.6"><animate attributeName="opacity" values="0.6;0.2;0.6" dur="3s" repeatCount="indefinite"/></circle><circle cx="400" cy="450" r="3" fill="%2306B6D4" opacity="0.7"><animate attributeName="opacity" values="0.7;0.3;0.7" dur="5s" repeatCount="indefinite"/></circle><circle cx="600" cy="100" r="2" fill="%238B5CF6" opacity="0.5"><animate attributeName="opacity" values="0.5;0.2;0.5" dur="6s" repeatCount="indefinite"/></circle></g></svg>');
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Header Styles */
.header {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    gap: 0.75rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    font-size: 0.9rem;
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    background: var(--accent-bg);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--accent-bg);
    border-color: var(--primary-color);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
}

.btn-link:hover {
    text-decoration: underline;
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 6rem 2rem;
    background: linear-gradient(135deg, 
        rgba(139, 92, 246, 0.1) 0%, 
        rgba(249, 115, 22, 0.1) 50%, 
        rgba(6, 182, 212, 0.1) 100%);
    border-radius: 24px;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></svg>') repeat;
    animation: sparkle 3s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.3; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-content .btn {
    margin-top: 1rem;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.main-column {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Card Styles */
.card {
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(139, 92, 246, 0.3);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: rgba(26, 26, 26, 0.5);
}

.card-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.online-counter {
    margin-left: auto;
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Activity Feed */
.activity-feed {
    display: flex;
    flex-direction: column;
}

.post {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.02);
}

.post:last-child {
    border-bottom: none;
}

.post:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(139, 92, 246, 0.3);
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.post-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.post-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    font-size: 0.8rem;
}

.post-meta {
    display: flex;
    flex-direction: column;
}

.post-username {
    font-weight: 600;
    color: var(--text-primary);
}

.post-time {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.post-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.post-content {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.post-actions {
    display: flex;
    gap: 1rem;
}

.post-action {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.post-action:hover {
    color: var(--primary-color);
    background: var(--accent-bg);
}

/* User Badges */
.user-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: auto;
}

.badge-admin {
    background: rgba(239, 68, 68, 0.2);
    color: #FCA5A5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-mod {
    background: rgba(245, 158, 11, 0.2);
    color: #FCD34D;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-member {
    background: rgba(6, 182, 212, 0.2);
    color: #67E8F9;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
}

.quick-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.quick-btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.quick-icon {
    font-size: 1.5rem;
}

/* User List */
.user-list {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.user-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.02);
}

.user-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.user-info {
    display: flex;
    flex-direction: column;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    flex-shrink: 0;
}

.status-dot.online {
    background: var(--success-color);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.show-more {
    text-align: center;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

/* Trending Topics */
.trending-list {
    padding: 1rem;
}

.trending-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.trending-item:hover {
    background: var(--accent-bg);
}

.trending-tag {
    color: var(--primary-color);
    font-weight: 600;
}

.trending-count {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.02);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    backdrop-filter: blur(10px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--secondary-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 400px;
    animation: modalSlideIn 0.3s ease;
    position: relative;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

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

.modal-close:hover {
    color: var(--text-primary);
}

/* Form Styles */
.login-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label,
.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    color: var(--text-muted);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: var(--border-radius);
}

.tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.tab.active {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    z-index: 3000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
}

.toast.error {
    border-color: var(--error-color);
    background: rgba(239, 68, 68, 0.1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: -1;
    }
    
    .quick-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        padding-top: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hero {
        padding: 4rem 1rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .card-header {
        padding: 1rem;
    }
    
    .post {
        padding: 1rem;
    }
    
    .post-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .user-section {
        order: -1;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn-large {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Selection Styling */
::selection {
    background: var(--primary-color);
    color: white;
}

/* Focus Styles */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus,
.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

/* Loading States */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(139, 92, 246, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

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