/* NUT Dashboard Premium - Styles CSS NETTOYÉS
 * Version: 2.1.7 - 18/09/2025 - Itération 7 NETTOYÉE
 * Date/Heure: 18/09/2025 23:15:00
 * Modification: SUPPRESSION classes HeartbeatManager + optimisations AJAX
 * Auteur: CK + Claude
 * Ce fichier est intégré inline par le script bash
 * CONFLIT RÉSOLU: Classes heartbeat-* supprimées - VitalsMonitor seul
 */

:root {
    --primary-color: #3b82f6;
    --secondary-color: #14b8a6;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #a855f7;
    
    --bg-gradient-start: #1e293b;
    --bg-gradient-end: #0f172a;
    --glass-bg: rgba(15, 23, 42, 0.8);
    --card-bg: rgba(30, 41, 59, 0.6);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --hover-bg: rgba(59, 130, 246, 0.1);
    
    --focus-ring: 0 0 0 3px rgba(59, 130, 246, 0.5);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
}

[data-theme="light"] {
    --bg-gradient-start: #f8fafc;
    --bg-gradient-end: #e2e8f0;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --card-bg: rgba(255, 255, 255, 0.5);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --border-color: rgba(148, 163, 184, 0.3);
    --shadow-color: rgba(0, 0, 0, 0.15);
}

[data-theme="ultra-dark"] {
    --primary-color: #6366f1;
    --secondary-color: #06b6d4;
    --bg-gradient-start: #000000;
    --bg-gradient-end: #1c1917;
    --glass-bg: rgba(0, 0, 0, 0.9);
    --card-bg: rgba(28, 25, 23, 0.8);
    --text-primary: #f1f5f9;
    --text-secondary: #64748b;
    --border-color: rgba(100, 116, 139, 0.2);
    --shadow-color: rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition-normal);
}

*:focus {
    outline: none;
    box-shadow: var(--focus-ring);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, var(--primary-color)20 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--secondary-color)20 0%, transparent 50%);
    z-index: -2;
    animation: backgroundShift 25s ease-in-out infinite;
    opacity: 0.3;
    will-change: transform;
}

@keyframes backgroundShift {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(-20px, -20px, 0); }
}

/* ========================================
   THEME SWITCHER (Sélecteur de thème)
   ======================================== */

.theme-switcher {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0.4rem 0.6rem;
    box-shadow: 0 8px 24px var(--shadow-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transform: scale(0.7); /* réduit la taille globale */
    transform-origin: center right;
    border-radius : 9999px;
}

/* Pastilles de thème (Light, Dark, Ultra) */
.theme-option {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--c); /* couleur injectée inline */
    border: 2px solid #fff3;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.theme-option:hover {
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(255,255,255,0.3);
}

.theme-option.active {
    outline: 2px solid var(--primary-color);
}


.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 20px 25px -5px var(--shadow-color);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.status-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1rem 0;
}

.device-info {
    text-align: center;
}

.device-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: var(--transition-smooth);
}

.timestamp-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1rem 1.5rem;
    backdrop-filter: blur(10px);
}

.data-timestamp, .next-update {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.timestamp-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.inline-countdown {
  margin-left: 1rem;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  font-weight: 600;
}

/* ========================================
   CLASSES AJAX OPTIMISÉES - Version 2.1.7
   ======================================== */

.timestamp-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--success-color);
    font-family: 'Monaco', 'Courier New', monospace;
    transition: var(--transition-smooth);
}

/* Animation subtile lors de la mise à jour du timestamp */
.timestamp-value.updating {
    opacity: 0.7;
    transform: scale(0.98);
}

.countdown-number.warning {
    color: var(--warning-color);
    animation: pulse 1s infinite;
}

.countdown-number.danger {
    color: var(--danger-color);
    animation: pulse 0.5s infinite;
}

.countdown-unit {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 600;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
}

/* ========================================
   NOTIFICATIONS AJAX AMÉLIORÉES
   ======================================== */

.connection-error {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--danger-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    z-index: 3000;
    box-shadow: 0 8px 32px rgba(239, 68, 68, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(239, 68, 68, 0.3);
    animation: slideInFromTop 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

@keyframes slideInFromTop {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.connection-error button {
    margin-left: 1rem;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.connection-error button:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.control-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1rem 2rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

/* NOUVEAU: Effet de loading pour mises à jour AJAX */
.control-btn.refreshing::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.2), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.control-btn:hover, .control-btn.active {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
    max-width: 1600px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: 0 10px 15px -3px var(--shadow-color);
    transition: var(--transition-normal);
    position: relative;
    overflow: visible;
    min-height: 280px;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px var(--shadow-color);
}

/* ========================================
   INDICATEUR DE MISE À JOUR AJAX AMÉLIORÉ
   ======================================== */

.stat-card.updating {
    border-color: var(--primary-color);
    box-shadow: 0 10px 15px -3px var(--shadow-color), 0 0 0 1px rgba(59, 130, 246, 0.3);
}

.stat-card.updating::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    animation: progressBar 1s ease-in-out;
}

@keyframes progressBar {
    0% { transform: scaleX(0); }
    100% { transform: scaleX(1); }
}

.stat-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-icon {
    font-size: 2rem;
    padding: 0.8rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transition: var(--transition-smooth);
}

.stat-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ========================================
   TRANSITIONS FLUIDES POUR VALEURS AJAX
   ======================================== */

.stat-value {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: var(--transition-smooth);
    position: relative;
}

/* Animation lors de la mise à jour d'une valeur */
.stat-value.value-changing {
    animation: valueUpdate 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

@keyframes valueUpdate {
    0% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(0.95);
    }
    100% { 
        opacity: 1;
        transform: scale(1);
    }
}

/* Effet de brillance subtile lors d'un changement de classe CSS */
.stat-value.value-ok.fresh {
    animation: freshGreen 0.8s ease-out;
}

.stat-value.value-warning.fresh {
    animation: freshOrange 0.8s ease-out;
}

.stat-value.value-danger.fresh {
    animation: freshRed 0.8s ease-out;
}

@keyframes freshGreen {
    0%, 100% { color: var(--success-color); }
    50% { 
        color: var(--success-color);
        text-shadow: 0 0 10px rgba(34, 197, 94, 0.4);
    }
}

@keyframes freshOrange {
    0%, 100% { color: var(--warning-color); }
    50% { 
        color: var(--warning-color);
        text-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
    }
}

@keyframes freshRed {
    0%, 100% { color: var(--danger-color); }
    50% { 
        color: var(--danger-color);
        text-shadow: 0 0 10px rgba(239, 68, 68, 0.4);
    }
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.stat-trend {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    display: inline-block;
}

.trend-up {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success-color);
}

.trend-stable {
    background: rgba(20, 184, 166, 0.2);
    color: var(--secondary-color);
}

.value-ok { color: var(--success-color); }
.value-warning { color: var(--warning-color); }
.value-danger { color: var(--danger-color); }
.value-info { color: var(--info-color); }

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

.chart-container {
    position: relative;
    height: 120px;
    width: 60px;
}

.chart-bar {
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-normal);
}

/* ========================================
   BARRES DE PROGRESSION AJAX OPTIMISÉES
   ======================================== */

.bar-fill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: var(--fill-height, 0%);
    border-radius: 6px;
    transition: height 1.2s cubic-bezier(0.23, 1, 0.32, 1);
    will-change: height;
}

/* Animation lors de la première charge */
.bar-fill.initial-load {
    animation: fillBar 2s ease-out;
}

/* Animation subtile lors d'une mise à jour AJAX */
.bar-fill.ajax-updating {
    animation: barPulse 0.6s ease-in-out;
}

@keyframes fillBar {
    0% { height: 0%; }
    100% { height: var(--fill-height, 0%); }
}

@keyframes barPulse {
    0%, 100% { box-shadow: 0 0 0 rgba(255, 255, 255, 0); }
    50% { box-shadow: 0 0 15px rgba(255, 255, 255, 0.2); }
}

.battery-charge {
    background: linear-gradient(180deg, #22c55e 0%, #16a34a 50%, #15803d 100%);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.3);
}

.load-charge {
    background: linear-gradient(180deg, #3b82f6 0%, #2563eb 50%, #1d4ed8 100%);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.runtime-charge {
    background: linear-gradient(180deg, #a855f7 0%, #9333ea 50%, #7c3aed 100%);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.3);
}

.voltage-charge {
    background: linear-gradient(180deg, #06b6d4 0%, #0891b2 50%, #0e7490 100%);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.chart-bar:hover {
    transform: scale(1.02);
    border-color: var(--primary-color);
}

.status-display {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}



.status-pulsar {
    position: relative;
    width: 100%;
    height: 100%;
}


.status-indicator {
    width: 90px;   /* 100px → 90px */
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

/* Indicateur de statut avec animation améliorée */
.pulse-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid var(--success-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: pulsate 2s ease-out infinite;
    transition: border-color var(--transition-smooth);
}

.pulse-ring.status-warning {
    border-color: var(--warning-color);
}

.pulse-ring.status-danger {
    border-color: var(--danger-color);
}

.pulse-dot {
    position: absolute;           /* nouveau */
    top: 50%;                     /* nouveau */
    left: 50%;                    /* nouveau */
    transform: translate(-50%, -50%); /* nouveau */
    width: 50%;                   /* inchangé */
    height: 50%;                  /* inchangé */
    background: linear-gradient(135deg, var(--success-color), #16a34a);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--success-color);
    transition: background var(--transition-smooth), box-shadow var(--transition-smooth);

}

.pulse-dot.status-warning {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
    box-shadow: 0 0 20px var(--warning-color);
}

.pulse-dot.status-danger {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
    box-shadow: 0 0 20px var(--danger-color);
}

@keyframes pulsate {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.3); opacity: 0; }
}

.temp-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.temp-icon {
    font-size: 3rem;
    filter: grayscale(1);
    opacity: 0.5;
    transition: var(--transition-smooth);
}

/* Animation de la température lors des mises à jour */
.temp-icon.temp-updating {
    animation: tempUpdate 1s ease-in-out;
}

@keyframes tempUpdate {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}

.variables-section {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: 0 10px 15px -3px var(--shadow-color);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.search-box {
    flex: 1;
    max-width: 400px;
    padding: 1rem 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-normal);
}

.search-box:focus {
    border-color: var(--primary-color);
}

.variables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.var-category {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.category-header {
    background: linear-gradient(135deg, var(--primary-color), #2563eb);
    color: white;
    padding: 1.2rem 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.1rem;
}

.var-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
    cursor: pointer;
}

.var-item:hover {
    background: var(--hover-bg);
    transform: translateX(4px);
}

.var-item:last-child {
    border-bottom: none;
}

.var-key {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 600;
}

.var-value {
    font-weight: 700;
    text-align: right;
    padding: 0.3rem 0.8rem;
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.05);
}

.original-key {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: 0.5rem;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    margin-top: 2rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    margin: 1rem 0;
}

.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* ========================================
   CLASSES UTILITAIRES AJAX OPTIMISÉES
   ======================================== */

.smooth-transition {
    transition: all var(--transition-smooth);
}

.no-transition {
    transition: none !important;
}

.ajax-loading {
    position: relative;
    overflow: hidden;
}

.ajax-loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    animation: loadingShimmer 2s infinite;
    pointer-events: none;
}

@keyframes loadingShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Classe pour masquer temporairement les éléments pendant la transition */
.transitioning {
    opacity: 0.6;
    pointer-events: none;
}

/* Animation pour le favicon lors des changements d'état */
.favicon-updating {
    animation: faviconPulse 0.5s ease-in-out;
}

@keyframes faviconPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Effet de "respiration" pour indiquer l'activité AJAX */
.ajax-active {
    animation: breathe 3s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.95; }
}

/* Classes pour les transitions de couleur fluides */
.color-transition {
    transition: color var(--transition-smooth), 
                text-shadow var(--transition-smooth),
                border-color var(--transition-smooth),
                background-color var(--transition-smooth);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1200px) {
    .stats-grid { 
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container { 
        padding: 1rem; 
    }
    
    .stats-grid { 
        grid-template-columns: 1fr; 
        gap: 1rem;
    }
    
    .variables-grid { 
        grid-template-columns: 1fr; 
    }
    
    .title { 
        font-size: 2rem; 
    }
    
    .theme-switcher { 
        top: 1rem; 
        right: 1rem; 
        flex-direction: column; 
        padding: 0.3rem;
    }
    
    .theme-option {
        padding: 0.6rem 0.8rem;
        font-size: 0.8rem;
    }
    
    .stat-chart {
        gap: 1rem;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .connection-error {
        left: 1rem;
        right: 1rem;
        transform: none;
        text-align: center;
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .stat-value {
        font-size: 2.2rem;
    }
    
    .timestamp-info {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: center;
    }
    
    .device-name {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
    }
    
    .header {
        padding: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
        min-height: 200px;
    }
    
    .stat-value {
        font-size: 1.8rem;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .controls {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .control-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

/* ========================================
   OPTIMISATIONS PERFORMANCE ET ACCESSIBILITÉ
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .ajax-loading::before,
    .control-btn.refreshing::before {
        display: none;
    }
    
    .body::before {
        animation: none;
    }
}

@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(255, 255, 255, 0.3);
        --shadow-color: rgba(0, 0, 0, 0.8);
    }
    
    .stat-card, .header, .variables-section {
        border-width: 2px;
    }
}

/* Print styles */
@media print {
    .theme-switcher,
    .controls,
    .connection-error {
        display: none !important;
    }
    
    .stat-card,
    .variables-section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .stat-card,
    .variables-section,
    .header {
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        background: white !important;
    }
    
    .ajax-loading::before,
    .control-btn.refreshing::before {
        display: none;
    }
    
    .stat-value {
        color: black !important;
    }
}

/* ========================================
   DARK MODE SPÉCIFIQUE
   ======================================== */

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #60a5fa;
        --secondary-color: #34d399;
    }
}

/* ========================================
   SUPPORT POUR VITALSMONITOR INTEGRATION
   ======================================== */

/* Espace pour le conteneur VitalsMonitor dans le header */
.header .vitals-monitor-container {
    margin: 1.5rem 0;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

/* Assurer la cohérence visuelle avec le reste du dashboard */
.vitals-monitor-container {
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 15px -3px var(--shadow-color);
    transition: var(--transition-normal);
}

.vitals-monitor-container:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px var(--shadow-color);
}

/* Ajustements pour l'intégration harmonieuse */
@media (max-width: 768px) {
    .header .vitals-monitor-container {
        margin: 1rem 0;
    }
}

/* pour le decompte arrondi */

.countdown-circle {
  position: relative;
  width: 90px;       /* un peu plus large */
  height: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-left: 1rem; /* petit espace avec les boutons thème */
}

.circular-timer {
  width: 90px;
  height: 90px;
  transform: rotate(-90deg);
}

.circular-timer .bg {
  fill: none;
  stroke: #e5e7eb; /* gris clair */
  stroke-width: 2.8;
}

.circular-timer .progress {
  fill: none;
  stroke: var(--primary-color);
  stroke-width: 2.8;
  stroke-linecap: round;
  transition: stroke-dasharray 1s linear;
}

.countdown-number {
  display: inline-block;
  transform-origin: center center; /* garantit le centrage */
  font-family: 'Monaco', 'Courier New', monospace; /* évite le décalage entre chiffres */
	
  font-family: 'Monaco', 'Courier New', monospace;
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.7rem;
  font-weight: bold;
  color: var(--text-primary);
}

.countdown-label {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 0.4rem;
  text-align: center;
}


/* Effet pulse pour le chiffre du countdown */
.countdown-number.updating {
 animation: countdownPulse 0.6s ease-in-out;
}

@keyframes countdownPulse {
  0%   { transform: scale(1); opacity: 1; }
  50%  { transform: scale(1.2); opacity: 0.7; }
  100% { transform: scale(1); opacity: 1; }
}

.circular-timer text {
  text-anchor: middle;         /* centre horizontalement */
  dominant-baseline: middle;   /* centre verticalement */
  font-family: 'Monaco', 'Courier New', monospace; /* évite décalage entre chiffres */
  font-size: 1.2rem;
  font-weight: bold;
  fill: var(--text-primary);
}


.oscilloscope-panel {
  display: flex;
  gap: 2rem;
  align-items: center;
  align-items: flex-start;
}

#oscilloscope-wrapper {
  flex: 1 1 auto;   /* ⚡ prend toute la largeur restante */
  width: 100%;      /* ⚡ s'étend à 100% */
  min-width: 0;     /* ⚡ évite les débordements flex */
}


.oscilloscope-settings {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  justify-items: center;
  align-items: center;
  width: 280px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.knob-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.knob {
  --angle: 0deg;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--knob-light, #f0f0f0), var(--knob-dark, #d0d0d0) 80%);
  box-shadow: inset -2px -2px 6px rgba(255,255,255,0.5),
              inset 3px 3px 6px rgba(0,0,0,0.2),
              0 2px 6px rgba(0,0,0,0.1);
  position: relative;
  cursor: pointer;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.theme-dark .knob {
  background: radial-gradient(circle at 30% 30%, #2a2f3a, #181c25 80%);
  box-shadow: inset -2px -2px 6px rgba(255,255,255,0.05),
              inset 3px 3px 6px rgba(0,0,0,0.6),
              0 2px 6px rgba(0,0,0,0.6);
}

.knob::after {
  content: '';
  position: absolute;
  top: 8%;
  left: 50%;
  width: 3px;
  height: 24px;
  background: currentColor; /* couleur du potard (bleu, vert, etc.) */
  border-radius: 2px;
  transform: translateX(-50%) rotate(var(--angle, 0deg));
  transform-origin: center 40px;
  box-shadow: 
    0 0 6px currentColor,    /* halo lumineux */
    0 0 0 1px #000;          /* liseré noir autour */
}


.knob.active {
  box-shadow: 0 0 12px currentColor;
}


.knob-label {
  font-size: 0.85rem;
  color: #ccc;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.knob-value {
  font-size: 0.85rem;
  color: var(--knob-light, #ddd);
  background: rgba(0,0,0,0.4);
  padding: 2px 6px;
  border-radius: 6px;
  font-family: 'Courier New', monospace;
}


/* couleurs dépendantes du thème */
[data-theme="light"] .knob {
  --knob-light: #f3f4f6;
  --knob-dark: #9ca3af;
}
[data-theme="dark"] .knob {
  --knob-light: #60a5fa;
  --knob-dark: #1e3a8a;
}
[data-theme="ultra-dark"] .knob {
  --knob-light: #34d399;
  --knob-dark: #065f46;
}

@media (max-width: 768px) {
  .oscilloscope-panel {
    flex-direction: column !important;  /* ⚡ passe en colonne */
    align-items: center;
  }

  .oscilloscope-settings {
    width: 100%;         /* prend toute la largeur */
    max-width: 400px;    /* mais pas plus large */
    margin-bottom: 1rem; /* petit espace sous les potards */
    margin-top : 2em;	
  }

  #oscilloscope-wrapper {
    width: 100%;        /* oscillo en pleine largeur */
  }
}

/* ========================================
   NOTES DE VERSION 2.1.7
   ======================================== */

/*
CHANGEMENTS MAJEURS par rapport à 2.1.4:

✅ SUPPRIMÉ:
- Toutes les classes heartbeat-* (heartbeat-container, heartbeat-graph, etc.)
- Classes metric-* obsolètes (metric-label, metric-bars, metric-bar, etc.)
- Code CSS mort lié à HeartbeatManager

✅ AJOUTÉ:
- Classes AJAX optimisées (.ajax-updating, .value-changing, .fresh)
- Animations de synchronisation (.connection-error, .transitioning)
- Support VitalsMonitor integration
- Classes utilitaires performance (.ajax-loading, .smooth-transition)

✅ OPTIMISÉ:
- Transitions CSS plus fluides pour AJAX
- Animations de mise à jour des valeurs
- Support responsive amélioré
- Accessibilité renforcée (prefers-reduced-motion, prefers-contrast)

ARCHITECTURE FINALE:
- nut-dashboard.css (ce fichier) : Styles principaux SANS heartbeat
- nut-vitals-monitor.css : Styles spécifiques VitalsMonitor
- Séparation claire, pas de duplication, pas de conflit
*/