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

:root {
    --primary-blue: #3498db;
    --dark-blue: #2980b9;
    --light-blue: #ebf5fb;
    --white: #ffffff;
    --gray: #f5f7fa;
    --dark-gray: #7f8c8d;
    --text-color: #2c3e50;
    --shadow: 0 4px 12px rgba(52, 152, 219, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
}

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

/* Анимации */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.fade-in {
    animation: fadeIn 1s ease;
}

.slide-up {
    animation: slideUp 0.6s ease forwards;
    opacity: 0;
}

.pulse-hover:hover {
    animation: pulse 0.5s ease;
}

.spinning {
    animation: spin 2s linear infinite;
}

.floating {
    animation: float 3s ease-in-out infinite;
}

/* Заголовок */
header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 20px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.logo i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    animation: float 4s ease-in-out infinite;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--dark-gray);
    font-weight: 400;
}

/* Карточки */
.card {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(52, 152, 219, 0.1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.15);
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
}

.card h2 i {
    color: var(--primary-blue);
}

/* Карта сети */
.network-map {
    padding: 20px;
    background: var(--gray);
    border-radius: 12px;
    position: relative;
}

.network-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.node {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: white;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    z-index: 2;
    position: relative;
}

.node i {
    font-size: 1.5rem;
}

.connections {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
}

.line {
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
    width: 80%;
    position: absolute;
    top: 50%;
}

.network-devices {
    display: flex;
    justify-content: space-around;
    width: 100%;
    flex-wrap: wrap;
    gap: 20px;
}

.device {
    background: var(--white);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    min-width: 150px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: var(--transition);
    border: 1px solid rgba(52, 152, 219, 0.2);
}

.device:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
}

.device i {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 10px;
    display: block;
}

.device span {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
}

.device small {
    color: var(--dark-gray);
    font-size: 0.85rem;
}

/* Спецификации */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.spec-item {
    text-align: center;
    padding: 20px;
    background: var(--light-blue);
    border-radius: 12px;
    transition: var(--transition);
    border: 1px solid rgba(52, 152, 219, 0.1);
}

.spec-item:hover {
    background: var(--white);
    border-color: var(--primary-blue);
    transform: translateY(-3px);
}

.spec-item i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.spec-item h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--dark-gray);
    font-weight: 600;
}

.spec-item p {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Сервисы */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--gray);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    border: 2px solid transparent;
}

.service-item:hover {
    background: var(--white);
    border-color: var(--primary-blue);
    transform: translateY(-3px);
}

.service-item i {
    font-size: 1.8rem;
    color: var(--primary-blue);
    min-width: 40px;
}

.service-item h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-color);
}

.service-item p {
    font-size: 0.9rem;
    color: var(--dark-gray);
    font-weight: 500;
}

.warning {
    color: #e74c3c;
    font-size: 0.8rem;
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Статус */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--gray);
    border-radius: 10px;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.status-indicator.active {
    background: #2ecc71;
    box-shadow: 0 0 10px rgba(46, 204, 113, 0.5);
}

.status-indicator.warning {
    background: #f39c12;
    box-shadow: 0 0 10px rgba(243, 156, 18, 0.5);
    animation: pulse 1.5s infinite;
}

.status-text {
    margin-left: auto;
    font-weight: 600;
    color: var(--dark-gray);
}

.status-note {
    padding: 15px;
    background: #fff9e6;
    border-radius: 10px;
    border-left: 4px solid #f39c12;
}

.status-note i {
    color: #f39c12;
    margin-right: 10px;
}

/* Футер */
footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 40px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.footer-content p {
    margin-bottom: 10px;
    color: var(--dark-gray);
}

.footer-content p:first-child {
    font-weight: 600;
    color: var(--text-color);
}

.update-info {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--light-blue);
    border-radius: 20px;
    margin-top: 15px;
    font-size: 0.9rem;
    color: var(--primary-blue);
}

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 30px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    position: relative;
    animation: slideUp 0.3s ease;
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    cursor: pointer;
    color: var(--dark-gray);
    transition: var(--transition);
}

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

.modal-content h2 {
    margin-bottom: 20px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-content h2 i {
    color: #e74c3c;
}

.modal-content p {
    margin-bottom: 15px;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 25px;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary-blue);
    color: white;
}

.btn-primary:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--gray);
    color: var(--text-color);
}

.btn-secondary:hover {
    background: #e0e0e0;
}

/* Адаптивность */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .specs-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .network-devices {
        flex-direction: column;
        align-items: center;
    }
    
    .device {
        width: 100%;
        max-width: 250px;
    }
    
    .line {
        display: none;
    }
    
    .modal-content {
        margin: 20% auto;
        width: 95%;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 20px;
    }
    
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
    }
}