/* Duolingo-стиль для FOXed Server Monitoring */

/* Переменные цветов Duolingo */
:root {
    --duolingo-green: #58cc02;
    --duolingo-blue: #1cb0f6;
    --duolingo-purple: #ce82ff;
    --duolingo-orange: #ff9600;
    --duolingo-red: #ff4b4b;
    --duolingo-yellow: #ffc800;
    --duolingo-pink: #ff6480;
    --duolingo-teal: #00d4aa;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f7f9fc;
    --bg-card: #ffffff;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Темная тема */
[data-theme="dark"] {
    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-card: #2d3748;
    --text-primary: #f7fafc;
    --text-secondary: #a0aec0;
    --border-color: #4a5568;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--duolingo-green) 0%, var(--duolingo-blue) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.hidden {
    display: none !important;
}

/* Логотип в стиле Duolingo */
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo i {
    color: var(--duolingo-green);
    font-size: 1.5rem;
}

.logo-text {
    background: linear-gradient(45deg, var(--duolingo-green), var(--duolingo-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Экран авторизации */
.login-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    width: 100%;
    max-width: 400px;
    text-align: center;
    border: 2px solid var(--border-color);
}

.login-header {
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 1.8rem;
    margin: 15px 0 10px 0;
    color: var(--text-primary);
    font-weight: 600;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.login-form {
    text-align: left;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--duolingo-green);
    box-shadow: 0 0 0 3px rgba(88, 204, 2, 0.1);
}

.login-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--duolingo-green) 0%, var(--duolingo-blue) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

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

.login-btn i {
    margin-right: 8px;
}

.error-message {
    margin-top: 15px;
    padding: 10px;
    background: #ffebee;
    color: #c62828;
    border-radius: 8px;
    font-size: 0.9rem;
    display: none;
}

.error-message.show {
    display: block;
}

/* Основной интерфейс */
.main-screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Заголовок */
.header {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: var(--shadow);
    border-bottom: 2px solid var(--border-color);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-left h1 {
    font-size: 1.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.status-dot {
    font-size: 0.8rem;
    animation: pulse 2s infinite;
}

.status-dot.connected {
    color: var(--duolingo-green);
}

.status-dot.disconnected {
    color: var(--duolingo-red);
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.settings-btn, .logout-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    color: white;
}

.settings-btn {
    background: var(--duolingo-blue);
}

.settings-btn:hover {
    background: #0ea5e9;
    transform: translateY(-1px);
}

.logout-btn {
    background: var(--duolingo-red);
}

.logout-btn:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

/* Панель настроек */
.settings-panel {
    background: var(--bg-card);
    margin: 20px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    background: linear-gradient(135deg, var(--duolingo-blue) 0%, var(--duolingo-purple) 100%);
    color: white;
    border-radius: 15px 15px 0 0;
}

.settings-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.settings-content {
    padding: 20px;
}

.setting-group {
    margin-bottom: 20px;
}

.setting-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
}

.setting-group select,
.setting-group input {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.setting-group select:focus,
.setting-group input:focus {
    outline: none;
    border-color: var(--duolingo-green);
}

.checkbox-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
}

/* Панель предупреждений */
.alerts-panel {
    background: #ffebee;
    border-left: 4px solid var(--duolingo-red);
    margin: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.alerts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    background: var(--duolingo-red);
    color: white;
    border-radius: 8px 8px 0 0;
}

.alerts-header i {
    margin-right: 10px;
}

.alerts-list {
    padding: 20px;
}

.alert-item {
    background: white;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    border-left: 4px solid var(--duolingo-red);
    box-shadow: var(--shadow);
}

.alert-item:last-child {
    margin-bottom: 0;
}

.alert-message {
    font-weight: 600;
    color: #c62828;
    margin-bottom: 5px;
}

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

/* Основной контент */
.main-content {
    flex: 1;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

/* Карточки метрик в стиле Duolingo */
.metric-card {
    background: var(--bg-card);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--duolingo-green), var(--duolingo-blue));
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.card-header i {
    font-size: 1.5rem;
    margin-right: 12px;
    padding: 10px;
    border-radius: 10px;
    color: white;
}

.cpu-card .card-header i {
    background: linear-gradient(135deg, var(--duolingo-orange), var(--duolingo-red));
}

.memory-card .card-header i {
    background: linear-gradient(135deg, var(--duolingo-blue), var(--duolingo-purple));
}

.network-card .card-header i {
    background: linear-gradient(135deg, var(--duolingo-green), var(--duolingo-teal));
}

.time-card .card-header i {
    background: linear-gradient(135deg, var(--duolingo-purple), var(--duolingo-pink));
}

.card-header h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
}

.metric-content {
    text-align: center;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.metric-details {
    margin-top: 15px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.cpu-card .progress-fill {
    background: linear-gradient(90deg, var(--duolingo-orange), var(--duolingo-red));
}

.memory-card .progress-fill {
    background: linear-gradient(90deg, var(--duolingo-blue), var(--duolingo-purple));
}

.network-card .progress-fill {
    background: linear-gradient(90deg, var(--duolingo-green), var(--duolingo-teal));
}

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

.network-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 15px;
}

.network-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.network-stat i {
    font-size: 1.2rem;
    color: var(--duolingo-green);
}

.network-stat span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Секция графиков */
.charts-section {
    background: var(--bg-card);
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
}

.charts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.charts-header h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-weight: 600;
}

.charts-controls {
    display: flex;
    gap: 10px;
}

.control-btn {
    padding: 8px 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    color: white;
    background: var(--duolingo-blue);
}

.control-btn:hover {
    background: #0ea5e9;
    transform: translateY(-1px);
}

.control-btn i {
    margin-right: 5px;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
}

.chart-container {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    border: 2px solid var(--border-color);
    position: relative;
    height: 300px;
}

.chart-container canvas {
    max-height: 100%;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .header-left h1 {
        font-size: 1.2rem;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .metric-card {
        padding: 20px;
    }
    
    .metric-value {
        font-size: 2rem;
    }
    
    .network-stats {
        flex-direction: column;
        gap: 10px;
    }
    
    .main-content {
        padding: 15px;
    }
    
    .alerts-panel,
    .settings-panel {
        margin: 15px;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 250px;
    }
    
    .charts-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .metric-value {
        font-size: 1.8rem;
    }
    
    .card-header h3 {
        font-size: 1rem;
    }
    
    .chart-container {
        height: 200px;
        padding: 15px;
    }
}

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

.metric-card {
    animation: slideIn 0.5s ease-out;
}

.chart-container {
    animation: slideIn 0.7s ease-out;
}

/* Скроллбар в стиле Duolingo */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--duolingo-blue);
}