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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #0f172a;
    min-height: 100vh;
    padding: 20px;
    color: #e2e8f0;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 10px;
}

header {
    background: #1e293b;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid #334155;
}

h1 {
    font-size: 2em;
    color: #f1f5f9;
    margin-bottom: 8px;
}

.subtitle {
    color: #94a3b8;
    font-size: 1em;
    margin-bottom: 10px;
}

.last-update {
    display: inline-block;
    background: #334155;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 0.85em;
    color: #cbd5e1;
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background: #1e293b;
    padding: 10px;
    border-radius: 12px;
    border: 1px solid #334155;
}

.nav-tab {
    flex: 1;
    padding: 12px 20px;
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1em;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-tab:hover {
    background: #334155;
    color: #e2e8f0;
}

.nav-tab.active {
    background: #3b82f6;
    color: white;
}

/* Views */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* Dashboard Grid - 5 COLONNES */
.monitor-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* EXACTEMENT 5 colonnes */
    gap: 15px;
}

.monitor-card {
    background: #1e293b;
    border-radius: 10px;
    padding: 18px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border: 1px solid #334155;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.monitor-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4);
    border-color: #475569;
}

.monitor-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 10px;
}

.monitor-name {
    font-size: 1.1em;
    font-weight: 600;
    color: #f1f5f9;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.monitor-url {
    font-size: 0.8em;
    color: #64748b;
    margin-bottom: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.85em;
    font-weight: 600;
    white-space: nowrap;
}

.status-badge.up {
    background: #10b981;
    color: white;
}

.status-badge.warning {
    background: #f59e0b;
    color: white;
}

.status-badge.down {
    background: #ef4444;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 15px;
}

.stat-item {
    background: #0f172a;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #334155;
}

.stat-label {
    font-size: 0.75em;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 1.3em;
    font-weight: 700;
    color: #f1f5f9;
}

.stat-value.uptime {
    color: #10b981;
}

.stat-value.ping {
    color: #3b82f6;
}

.stat-value.down {
    color: #ef4444;
}

/* Calendar Grid */
.calendar-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calendar-monitor {
    background: #1e293b;
    border-radius: 12px;
    padding: 20px;
    border: 1px solid #334155;
}

.calendar-monitor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #334155;
    flex-wrap: wrap;
    gap: 10px;
}

.calendar-monitor-name {
    font-size: 1.3em;
    font-weight: 600;
    color: #f1f5f9;
}

.calendar-monitor-stats {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.calendar-stat {
    font-size: 0.85em;
    color: #94a3b8;
}

.calendar-stat strong {
    color: #f1f5f9;
    font-weight: 600;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: 8px;
    margin-bottom: 15px;
}

.calendar-day {
    aspect-ratio: 1;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    border: 2px solid transparent;
}

.calendar-day:hover {
    transform: scale(1.15);
    z-index: 10;
    border-color: #e2e8f0;
}

.calendar-day.up {
    background: #10b981;
}

.calendar-day.warning {
    background: #f59e0b;
}

.calendar-day.down {
    background: #ef4444;
}

.calendar-day.no-data {
    background: #334155;
    opacity: 0.3;
}

.calendar-day[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: #0f172a;
    color: #f1f5f9;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.75em;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    z-index: 100;
    border: 1px solid #334155;
}

.calendar-legend {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    padding-top: 15px;
    border-top: 1px solid #334155;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85em;
    color: #94a3b8;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

/* Loading & Error */
.loading, .error {
    text-align: center;
    padding: 40px;
    background: #1e293b;
    border-radius: 12px;
    border: 1px solid #334155;
}

.spinner {
    border: 3px solid #334155;
    border-top: 3px solid #3b82f6;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

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

.error {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
}

/* MEDIA QUERIES RESPONSIVE */
@media (max-width: 1600px) {
    .monitor-grid {
        grid-template-columns: repeat(4, 1fr); /* 4 colonnes sur écrans moyens */
    }
}

@media (max-width: 1280px) {
    .monitor-grid {
        grid-template-columns: repeat(3, 1fr); /* 3 colonnes sur écrans plus petits */
    }
}

@media (max-width: 960px) {
    .monitor-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 colonnes sur tablettes */
    }
    
    .calendar-monitor-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .monitor-grid {
        grid-template-columns: 1fr; /* 1 colonne sur mobile */
    }
    
    .monitor-card {
        padding: 20px;
    }
    
    .monitor-name {
        font-size: 1.4em;
    }
    
    .nav-tabs {
        flex-direction: column;
    }
    
    .calendar-days {
        grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    }
}