/* Optimized CSS for Performance */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Navigation */
nav {
    background: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #667eea;
}

/* Main Content */
main {
    padding: 2rem 0;
}

/* Categories */
.categories {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.category-btn {
    padding: 0.5rem 1rem;
    background: white;
    border: 2px solid #667eea;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-btn:hover,
.category-btn.active {
    background: #667eea;
    color: white;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.dashboard-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.dashboard-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.dashboard-card-content {
    padding: 1.5rem;
}

.dashboard-card h3 {
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.dashboard-card p {
    color: #e0e0e0;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.dashboard-card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    background: #e3f2fd;
    color: #1976d2;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.dashboard-card-stats {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.dashboard-card-actions {
    display: flex;
    gap: 0.5rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a67d8;
}

.btn-secondary {
    background: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

/* Benefits Section */
.benefits {
    background: white;
    padding: 3rem 0;
    margin: 2rem 0;
}

.benefits h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 1rem;
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-item h3 {
    margin-bottom: 0.5rem;
    color: #333;
}

.benefit-item p {
    color: #666;
    line-height: 1.5;
}

/* FAQ Section */
.faq {
    background: #f8f9fa;
    padding: 3rem 0;
    margin: 2rem 0;
}

.faq h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #333;
}

.faq-item {
    background: white;
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.faq-question {
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    color: #333;
}

.faq-question:hover {
    background: #f8f9fa;
}

.faq-answer {
    padding: 0 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer.active {
    padding: 1rem;
    max-height: 500px;
}

.faq-icon {
    transition: transform 0.3s ease;
}

.faq-icon.active {
    transform: rotate(180deg);
}

/* Social Sharing */
.social-share {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.3s ease;
}

.social-btn:hover {
    transform: translateY(-2px);
}

.telegram {
    background: #0088cc;
    color: white;
}

.vk {
    background: #0077ff;
    color: white;
}

.facebook {
    background: #1877f2;
    color: white;
}

/* Footer */
footer {
    background: #2d3748;
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #cbd5e0;
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #4a5568;
    color: #cbd5e0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    nav ul {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .logo {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .dashboard-card {
        margin-bottom: 1rem;
    }
    
    .social-share {
        flex-direction: column;
        align-items: center;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.hidden { display: none; }
.visible { display: block; }

/* Chat Widget Styles */
.chat-widget {
    position: fixed;
    bottom: 90px;
    right: 20px;
    z-index: 999;
}

.chat-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #667eea;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    position: relative;
}

.chat-button:hover {
    background: #5a67d8;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.chat-button svg {
    width: 28px;
    height: 28px;
    fill: white;
}

.chat-tooltip {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: #2d3748;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-size: 0.85rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.chat-button:hover .chat-tooltip {
    opacity: 1;
}

.chat-modal {
    position: fixed;
    bottom: 170px;
    right: 20px;
    width: 350px;
    height: 450px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    z-index: 998;
    display: none;
    flex-direction: column;
    overflow: hidden;
}

.chat-modal.active {
    display: flex;
}

.chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.chat-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.message {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: 15px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.bot-message {
    background: #f0f4f8;
    color: #333;
    align-self: flex-start;
    border-bottom-left-radius: 5px;
}

.user-message {
    background: #667eea;
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 5px;
}

.message-content {
    white-space: pre-wrap;
}

.chat-input-container {
    padding: 1rem;
    border-top: 1px solid #e2e8f0;
    display: flex;
    gap: 0.5rem;
}

.chat-input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid #cbd5e0;
    border-radius: 25px;
    font-size: 0.9rem;
    outline: none;
}

.chat-input:focus {
    border-color: #667eea;
}

.chat-send {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #667eea;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-send:hover {
    background: #5a67d8;
}

.chat-send svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.chat-loading {
    display: none;
    align-self: flex-start;
    padding: 0.5rem 1rem;
}

.chat-loading.visible {
    display: flex;
}

.chat-loading .typing-indicator {
    display: flex;
    gap: 0.25rem;
}

.chat-loading .typing-indicator span {
    width: 8px;
    height: 8px;
    background: #667eea;
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.chat-loading .typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.chat-loading .typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.8); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

@media (max-width: 480px) {
    .chat-widget {
        bottom: 80px;
        right: 15px;
    }
    
    .chat-button {
        width: 50px;
        height: 50px;
    }
    
    .chat-modal {
        width: calc(100vw - 30px);
        height: 70vh;
        right: 15px;
        bottom: 150px;
    }
}