/* Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Ana Renkler */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --success-color: #10b981;
    
    /* Arka Plan Renkleri */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    
    /* Metin Renkleri */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Kenarlık ve Gölge */
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    
    /* Enerji Renkleri */
    --solar-color: #fbbf24;
    --battery-color: #10b981;
    --diesel-color: #f97316;
    --load-color: #8b5cf6;
    
    /* Geçiş Efektleri */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-content {
    text-align: center;
    animation: fadeInUp 0.8s ease;
}

.loading-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.loading-logo i {
    font-size: 3rem;
    color: var(--primary-color);
    animation: pulse 2s infinite;
}

.loading-logo h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-tertiary);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Ana Uygulama Konteyneri */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

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

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.project-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.project-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

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

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
}

.sidebar-nav ul {
    list-style: none;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

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

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: white;
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.nav-item span:first-of-type {
    flex: 1;
}

.badge {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 20px;
    text-align: center;
}

.badge.alarm-badge {
    background-color: var(--danger-color);
    color: white;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.system-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success-color);
    animation: pulse 2s infinite;
}

.status-indicator.online {
    background-color: var(--success-color);
}

.status-indicator.offline {
    background-color: var(--danger-color);
}

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

/* Ana İçerik */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 70px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

#page-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

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

.stat-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-value.success {
    color: var(--success-color);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-hover);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu:hover {
    background-color: var(--bg-tertiary);
}

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

.user-name {
    font-weight: 500;
    color: var(--text-primary);
}

/* Sayfa İçeriği */
.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* KPI Kartları */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-normal);
}

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

.kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.kpi-icon.solar {
    background: linear-gradient(135deg, var(--solar-color), #f59e0b);
}

.kpi-icon.battery {
    background: linear-gradient(135deg, var(--battery-color), #059669);
}

.kpi-icon.diesel {
    background: linear-gradient(135deg, var(--diesel-color), #ea580c);
}

.kpi-icon.load {
    background: linear-gradient(135deg, var(--load-color), #7c3aed);
}

.kpi-content {
    flex: 1;
}

.kpi-content h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.kpi-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.kpi-trend {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.kpi-trend.positive {
    color: var(--success-color);
}

.kpi-trend.negative {
    color: var(--danger-color);
}

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

/* Grafik Bölümü */
.charts-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.chart-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.chart-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-controls {
    display: flex;
    gap: 0.5rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.8rem;
}

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

.btn-small.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Power Center Grid */
.power-center-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.power-center-card {
    background-color: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.power-center-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.power-center-card.online {
    border-color: var(--success-color);
}

.power-center-card.offline {
    border-color: var(--danger-color);
}

.power-center-card.warning {
    border-color: var(--warning-color);
}

.pc-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.pc-status {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    margin-bottom: 0.5rem;
}

.pc-status.online {
    background-color: var(--success-color);
    color: white;
}

.pc-status.offline {
    background-color: var(--danger-color);
    color: white;
}

.pc-status.warning {
    background-color: var(--warning-color);
    color: white;
}

.pc-power {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Sistem Genel Bakış */
.system-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.overview-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.overview-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

/* Performans Metrikleri */
.performance-metrics {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.metric-label {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.progress-bar {
    flex: 2;
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    border-radius: 4px;
    transition: width var(--transition-slow);
}

.metric-value {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 40px;
    text-align: right;
}

/* Aktivite Listesi */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background-color: var(--bg-hover);
    border-radius: 8px;
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: white;
}

.activity-icon.success {
    background-color: var(--success-color);
}

.activity-icon.warning {
    background-color: var(--warning-color);
}

.activity-icon.error {
    background-color: var(--danger-color);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

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

/* Sayfa Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.page-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Butonlar */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
}

/* Form Elemanları */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
}

.search-box input {
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-hover);
    color: var(--text-primary);
    min-width: 250px;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-hover);
    color: var(--text-primary);
    cursor: pointer;
}

/* Alarm Özeti */
.alarm-summary {
    display: flex;
    gap: 1rem;
}

.alarm-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    border-radius: 8px;
    min-width: 80px;
}

.alarm-stat.critical {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
}

.alarm-stat.warning {
    background-color: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
}

.alarm-stat.info {
    background-color: rgba(37, 99, 235, 0.1);
    border: 1px solid var(--primary-color);
}

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

.alarm-stat .label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

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

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

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

/* Responsive Tasarım */
@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
    
    .system-overview {
        grid-template-columns: 1fr;
    }
    
    .header-stats {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        height: 100%;
        z-index: 1000;
    }
    
    .sidebar.open {
        transform: translateX(280px);
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .main-content {
        width: 100%;
    }
    
    .header {
        padding: 1rem;
    }
    
    .page-content {
        padding: 1rem;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .page-actions {
        width: 100%;
        flex-wrap: wrap;
    }
    
    .search-box input {
        min-width: 200px;
    }
}

@media (max-width: 480px) {
    .power-center-grid {
        grid-template-columns: 1fr;
    }
    
    .alarm-summary {
        flex-direction: column;
    }
    
    .search-box input {
        min-width: 150px;
    }
}