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

:root {
    --primary-color: #8b5cf6;
    --primary-dark: #7c3aed;
    --primary-light: #a78bfa;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --alert-low: #10b981;
    --alert-mid: #f59e0b;
    --alert-high: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans',
        'Helvetica Neue', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============= LOGIN PAGE ============= */
.login-page {
    display: flex;
    flex-direction: column;
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.login-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(30, 41, 59, 0.8) 100%);
    border: 1px solid var(--primary-color);
    border-radius: 16px;
    padding: 50px 40px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 60px rgba(139, 92, 246, 0.2);
}

.logo {
    margin-bottom: 30px;
}

.logo-icon {
    width: auto;
    max-width: 200px;
    height: 120px;
    object-fit: contain;
}

.login-card h1 {
    font-size: 28px;
    margin-bottom: 10px;
    color: #8b5cf6 !important;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 40px;
    font-weight: 500;
}

.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);
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: rgba(15, 23, 42, 0.5);
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: rgba(15, 23, 42, 0.8);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.error-message {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: #fca5a5;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.error-text {
    display: block;
    color: #fca5a5;
    font-size: 12px;
    margin-top: 4px;
    min-height: 16px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.3);
}

.test-credentials {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.test-credentials p {
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 8px;
}

.test-credentials small {
    color: var(--primary-light);
    font-weight: 600;
}

/* ============= NAVBAR ============= */
.navbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 20px;
}

.navbar-brand .logo-icon {
    height: 50px;
    width: auto;
    max-width: 280px;
    font-size: 18px;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    object-fit: contain;
}

.navbar-brand h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-light);
    margin: 0;
    letter-spacing: 0.5px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    border-radius: 8px;
    background-color: rgba(139, 92, 246, 0.15);
    border: 1.5px solid var(--primary-color);
}

.user-icon {
    width: 24px;
    height: 24px;
    color: white;
    flex-shrink: 0;
}

.username {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

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

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

.btn-logout {
    background-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid var(--danger);
}

.btn-logout:hover {
    background-color: rgba(239, 68, 68, 0.3);
}

/* ============= DASHBOARD ============= */
.dashboard-container {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.dashboard-content {
    flex: 1;
    padding: 40px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.header {
    margin-bottom: 40px;
}

.header h1 {
    font-size: 32px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.header p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* Search and Filter Container */
.search-filter-container {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.search-box {
    flex: 1;
    min-width: 250px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 12px 40px 12px 40px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.filter-box {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}

.status-filter {
    padding: 10px 14px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.status-filter:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.status-filter:hover {
    border-color: var(--primary-light);
}

.status-filter option {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

.no-results-message {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
}

.no-results-message p {
    font-size: 16px;
}

.dashboard-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

.dashboard-loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.dashboard-loader .chart-spinner {
    width: 60px;
    height: 60px;
}

.dashboard-loader p {
    color: #a78bfa;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    animation: fadeInOut 2s ease-in-out infinite;
    margin: 0;
    padding: 0;
}

.sensors-container {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.tenant-section {
    display: flex;
    flex-direction: column;
}

.tenant-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
    letter-spacing: 0.3px;
}

.sensors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.no-sensors-message {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
    text-align: center;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(30, 41, 59, 0.3) 100%);
    border: 2px dashed var(--primary-color);
    border-radius: 12px;
    color: var(--text-secondary);
}

.no-sensors-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.no-sensors-message h3 {
    color: var(--text-primary);
    font-size: 20px;
    margin-bottom: 10px;
}

.no-sensors-message p {
    color: var(--text-secondary);
    font-size: 14px;
    max-width: 400px;
}

.sensor-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(30, 41, 59, 0.6) 100%);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sensor-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-light);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

/* Alert pulsing animation for sensors in alert state */
.sensor-alert-pulse {
    animation: alertPulse 2s ease-in-out infinite;
    border-color: #ef4444;
}

@keyframes alertPulse {
    0%, 100% {
        border-color: #ef4444;
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(239, 68, 68, 0.3);
    }
}

.sensor-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 16px;
}

.sensor-header h3 {
    font-size: 18px;
    color: var(--text-primary);
    flex: 1;
    margin-right: 12px;
    word-break: break-word;
}

.status-badge {
    font-size: 12px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 6px;
    white-space: nowrap;
    display: inline-block;
    border: 2px solid;
}

.status-active {
    background-color: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border-color: #22c55e;
}

.status-alert {
    background-color: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border-color: #ef4444;
}

.status-resolved {
    background-color: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border-color: #22c55e;
}

.status-activo {
    background-color: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border-color: #22c55e;
}

.status-inactivo {
    background-color: rgba(107, 114, 128, 0.2);
    color: #d1d5db;
    border: 1px solid #4b5563;
}

.alert-level-badge {
    background-color: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border-color: #22c55e;
    font-size: 13px;
    font-weight: 700;
    min-width: auto;
    padding: 8px 12px;
    text-align: center;
    white-space: nowrap;
}

.sensor-details {
    margin-bottom: 20px;
}

.sensor-details p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 8px;
}

.last-updated {
    font-size: 12px;
    opacity: 0.8;
}

.sensor-footer {
    text-align: right;
    color: var(--primary-color);
    font-size: 20px;
}

/* ============= SENSOR DETAIL ============= */
.sensor-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    height: 100%;
}

.sensor-detail-content {
    flex: 1;
    padding: 15px 25px;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sensor-header-detail {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 30px;
    margin-bottom: 15px;
    padding: 10px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
}

.sensor-info {
    flex: 1;
}

.sensor-header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.sensor-header-detail .status-badge {
    font-size: 16px;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
    white-space: nowrap;
    align-self: flex-start;
    margin-top: 5px;
}

.alert-score-inline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.alert-level-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sensor-header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.alert-level-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.08) 0%, rgba(139, 92, 246, 0.02) 100%);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 14px;
    padding: 12px 16px;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.alert-level-card:hover {
    border-color: rgba(139, 92, 246, 0.4);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12) 0%, rgba(139, 92, 246, 0.04) 100%);
}

.alert-level-header {
    font-size: 10px;
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tooltip-icon-small {
    display: inline-block;
    width: 14px;
    height: 14px;
    background-color: #8b5cf6;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 14px;
    font-size: 9px;
    font-weight: bold;
    cursor: help;
    position: relative;
    vertical-align: middle;
    flex-shrink: 0;
}

.tooltip-icon-small:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    top: 120%;
    left: -220px;
    background-color: #1f2937;
    color: white;
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: normal;
    white-space: normal;
    width: 280px;
    max-height: 80px;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    border: 1px solid #8b5cf6;
    text-transform: none;
    letter-spacing: normal;
    line-height: 1.3;
    overflow: hidden;
    word-wrap: break-word;
}

.tooltip-icon-small:hover::before {
    content: '';
    position: absolute;
    top: 110%;
    left: 120px;
    border: 5px solid transparent;
    border-bottom-color: #1f2937;
    z-index: 1001;
}

.alert-level-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

/* ============= ALERT BADGE BOX FOR DASHBOARD ============= */
.alert-badge-box {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 14px;
    border-radius: 8px;
    background: transparent;
    box-shadow: none;
    transition: all 0.3s ease;
    border: 2.5px solid rgba(100, 116, 139, 0.5);
    min-width: 90px;
    flex-shrink: 0;
}

.alert-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: none;
    letter-spacing: 0;
}

.alert-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    text-shadow: none;
    line-height: 1;
}

/* Gray color for no data */
.alert-badge-box[data-alert-level="no-data"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(107, 114, 128, 0.7) !important;
    border-width: 2.5px !important;
}

.score-circle-elegant[data-alert-level="no-data"] {
    background: linear-gradient(135deg, #6b7280 0%, rgba(107, 114, 128, 0.8) 100%) !important;
    box-shadow: 0 6px 16px rgba(107, 114, 128, 0.2), inset 0 1px 1px rgba(255, 255, 255, 0.3) !important;
}

.alert-badge-box[data-alert-level="0"],
.alert-badge-box[data-alert-level="1"],
.alert-badge-box[data-alert-level="2"],
.alert-badge-box[data-alert-level="3"],
.alert-badge-box[data-alert-level="4"],
.alert-badge-box[data-alert-level="5"],
.alert-badge-box[data-alert-level="6"],
.alert-badge-box[data-alert-level="7"],
.alert-badge-box[data-alert-level="8"],
.alert-badge-box[data-alert-level="9"],
.alert-badge-box[data-alert-level="10"],
.alert-badge-box[data-alert-level="11"],
.alert-badge-box[data-alert-level="12"],
.alert-badge-box[data-alert-level="13"],
.alert-badge-box[data-alert-level="14"],
.alert-badge-box[data-alert-level="15"],
.alert-badge-box[data-alert-level="16"],
.alert-badge-box[data-alert-level="17"],
.alert-badge-box[data-alert-level="18"],
.alert-badge-box[data-alert-level="19"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(5, 150, 105, 0.8) !important;
    border-width: 2.5px !important;
}

/* Yellow-Green: 20-29 */
.alert-badge-box[data-alert-level="20"],
.alert-badge-box[data-alert-level="21"],
.alert-badge-box[data-alert-level="22"],
.alert-badge-box[data-alert-level="23"],
.alert-badge-box[data-alert-level="24"],
.alert-badge-box[data-alert-level="25"],
.alert-badge-box[data-alert-level="26"],
.alert-badge-box[data-alert-level="27"],
.alert-badge-box[data-alert-level="28"],
.alert-badge-box[data-alert-level="29"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(78, 172, 76, 0.8) !important;
    border-width: 2.5px !important;
}

/* Yellow: 30-39 */
.alert-badge-box[data-alert-level="30"],
.alert-badge-box[data-alert-level="31"],
.alert-badge-box[data-alert-level="32"],
.alert-badge-box[data-alert-level="33"],
.alert-badge-box[data-alert-level="34"],
.alert-badge-box[data-alert-level="35"],
.alert-badge-box[data-alert-level="36"],
.alert-badge-box[data-alert-level="37"],
.alert-badge-box[data-alert-level="38"],
.alert-badge-box[data-alert-level="39"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(180, 145, 23, 0.8) !important;
    border-width: 2.5px !important;
}

/* Yellow-Orange: 40-49 */
.alert-badge-box[data-alert-level="40"],
.alert-badge-box[data-alert-level="41"],
.alert-badge-box[data-alert-level="42"],
.alert-badge-box[data-alert-level="43"],
.alert-badge-box[data-alert-level="44"],
.alert-badge-box[data-alert-level="45"],
.alert-badge-box[data-alert-level="46"],
.alert-badge-box[data-alert-level="47"],
.alert-badge-box[data-alert-level="48"],
.alert-badge-box[data-alert-level="49"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(180, 88, 12, 0.8) !important;
    border-width: 2.5px !important;
}

/* Orange: 50-59 */
.alert-badge-box[data-alert-level="50"],
.alert-badge-box[data-alert-level="51"],
.alert-badge-box[data-alert-level="52"],
.alert-badge-box[data-alert-level="53"],
.alert-badge-box[data-alert-level="54"],
.alert-badge-box[data-alert-level="55"],
.alert-badge-box[data-alert-level="56"],
.alert-badge-box[data-alert-level="57"],
.alert-badge-box[data-alert-level="58"],
.alert-badge-box[data-alert-level="59"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(180, 88, 12, 0.8) !important;
    border-width: 2.5px !important;
}

/* Orange-Red: 60-66 */
.alert-badge-box[data-alert-level="60"],
.alert-badge-box[data-alert-level="61"],
.alert-badge-box[data-alert-level="62"],
.alert-badge-box[data-alert-level="63"],
.alert-badge-box[data-alert-level="64"],
.alert-badge-box[data-alert-level="65"],
.alert-badge-box[data-alert-level="66"] {
    background: transparent !important;
    box-shadow: none !important;
    border-color: rgba(220, 38, 38, 0.8) !important;
    border-width: 2.5px !important;
}

/* Orange-Red Alert with Background: 67-69 */
.alert-badge-box[data-alert-level="67"],
.alert-badge-box[data-alert-level="68"],
.alert-badge-box[data-alert-level="69"] {
    background: rgba(220, 38, 38, 0.15) !important;
    box-shadow: none !important;
    border-color: rgba(220, 38, 38, 0.8) !important;
    border-width: 2.5px !important;
}

/* Red Alert Pulse: 70-89 */
.alert-badge-box[data-alert-level="70"],
.alert-badge-box[data-alert-level="71"],
.alert-badge-box[data-alert-level="72"],
.alert-badge-box[data-alert-level="73"],
.alert-badge-box[data-alert-level="74"],
.alert-badge-box[data-alert-level="75"],
.alert-badge-box[data-alert-level="76"],
.alert-badge-box[data-alert-level="77"],
.alert-badge-box[data-alert-level="78"],
.alert-badge-box[data-alert-level="79"],
.alert-badge-box[data-alert-level="80"],
.alert-badge-box[data-alert-level="81"],
.alert-badge-box[data-alert-level="82"],
.alert-badge-box[data-alert-level="83"],
.alert-badge-box[data-alert-level="84"],
.alert-badge-box[data-alert-level="85"],
.alert-badge-box[data-alert-level="86"],
.alert-badge-box[data-alert-level="87"],
.alert-badge-box[data-alert-level="88"],
.alert-badge-box[data-alert-level="89"] {
    background: rgba(220, 38, 38, 0.2) !important;
    box-shadow: none !important;
    border-color: rgba(220, 38, 38, 0.8) !important;
    border-width: 2.5px !important;
    animation: alertPulse 2s ease-in-out infinite;
}



/* Dark Red Alert Pulse: 90-100 */
.alert-badge-box[data-alert-level="90"],
.alert-badge-box[data-alert-level="91"],
.alert-badge-box[data-alert-level="92"],
.alert-badge-box[data-alert-level="93"],
.alert-badge-box[data-alert-level="94"],
.alert-badge-box[data-alert-level="95"],
.alert-badge-box[data-alert-level="96"],
.alert-badge-box[data-alert-level="97"],
.alert-badge-box[data-alert-level="98"],
.alert-badge-box[data-alert-level="99"],
.alert-badge-box[data-alert-level="100"] {
    background: rgba(127, 29, 29, 0.25) !important;
    box-shadow: none !important;
    border-color: rgba(127, 29, 29, 0.8) !important;
    border-width: 2.5px !important;
    animation: alertPulse 2s ease-in-out infinite;
}

.score-circle-elegant {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: transparent;
    transition: all 0.3s ease;
    box-shadow: none;
}

.score-circle-elegant::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: transparent;
}

/* Color gradients for score-circle-elegant based on data-alert-level */

/* Green: 0-19 */
.score-circle-elegant[data-alert-level="0"],
.score-circle-elegant[data-alert-level="1"],
.score-circle-elegant[data-alert-level="2"],
.score-circle-elegant[data-alert-level="3"],
.score-circle-elegant[data-alert-level="4"],
.score-circle-elegant[data-alert-level="5"],
.score-circle-elegant[data-alert-level="6"],
.score-circle-elegant[data-alert-level="7"],
.score-circle-elegant[data-alert-level="8"],
.score-circle-elegant[data-alert-level="9"],
.score-circle-elegant[data-alert-level="10"],
.score-circle-elegant[data-alert-level="11"],
.score-circle-elegant[data-alert-level="12"],
.score-circle-elegant[data-alert-level="13"],
.score-circle-elegant[data-alert-level="14"],
.score-circle-elegant[data-alert-level="15"],
.score-circle-elegant[data-alert-level="16"],
.score-circle-elegant[data-alert-level="17"],
.score-circle-elegant[data-alert-level="18"],
.score-circle-elegant[data-alert-level="19"] {
    background: transparent !important;
    box-shadow: 0 0 0 2.5px rgba(5, 150, 105, 0.8) !important;
}

/* Yellow-Green: 20-29 */
.score-circle-elegant[data-alert-level="20"],
.score-circle-elegant[data-alert-level="21"],
.score-circle-elegant[data-alert-level="22"],
.score-circle-elegant[data-alert-level="23"],
.score-circle-elegant[data-alert-level="24"],
.score-circle-elegant[data-alert-level="25"],
.score-circle-elegant[data-alert-level="26"],
.score-circle-elegant[data-alert-level="27"],
.score-circle-elegant[data-alert-level="28"],
.score-circle-elegant[data-alert-level="29"] {
    background: transparent !important;
    box-shadow: 0 0 0 2.5px rgba(78, 172, 76, 0.8) !important;
}

/* Yellow: 30-39 */
.score-circle-elegant[data-alert-level="30"],
.score-circle-elegant[data-alert-level="31"],
.score-circle-elegant[data-alert-level="32"],
.score-circle-elegant[data-alert-level="33"],
.score-circle-elegant[data-alert-level="34"],
.score-circle-elegant[data-alert-level="35"],
.score-circle-elegant[data-alert-level="36"],
.score-circle-elegant[data-alert-level="37"],
.score-circle-elegant[data-alert-level="38"],
.score-circle-elegant[data-alert-level="39"] {
    background: transparent !important;
    box-shadow: 0 0 0 2.5px rgba(180, 145, 23, 0.8) !important;
}

/* Yellow-Orange: 40-49 */
.score-circle-elegant[data-alert-level="40"],
.score-circle-elegant[data-alert-level="41"],
.score-circle-elegant[data-alert-level="42"],
.score-circle-elegant[data-alert-level="43"],
.score-circle-elegant[data-alert-level="44"],
.score-circle-elegant[data-alert-level="45"],
.score-circle-elegant[data-alert-level="46"],
.score-circle-elegant[data-alert-level="47"],
.score-circle-elegant[data-alert-level="48"],
.score-circle-elegant[data-alert-level="49"] {
    background: transparent !important;
    box-shadow: 0 0 0 2.5px rgba(180, 88, 12, 0.8) !important;
}

/* Orange: 50-59 */
.score-circle-elegant[data-alert-level="50"],
.score-circle-elegant[data-alert-level="51"],
.score-circle-elegant[data-alert-level="52"],
.score-circle-elegant[data-alert-level="53"],
.score-circle-elegant[data-alert-level="54"],
.score-circle-elegant[data-alert-level="55"],
.score-circle-elegant[data-alert-level="56"],
.score-circle-elegant[data-alert-level="57"],
.score-circle-elegant[data-alert-level="58"],
.score-circle-elegant[data-alert-level="59"] {
    background: transparent !important;
    box-shadow: 0 0 0 2.5px rgba(180, 88, 12, 0.8) !important;
}

/* Orange-Red: 60-66 */
.score-circle-elegant[data-alert-level="60"],
.score-circle-elegant[data-alert-level="61"],
.score-circle-elegant[data-alert-level="62"],
.score-circle-elegant[data-alert-level="63"],
.score-circle-elegant[data-alert-level="64"],
.score-circle-elegant[data-alert-level="65"],
.score-circle-elegant[data-alert-level="66"] {
    background: transparent !important;
    box-shadow: 0 0 0 2.5px rgba(220, 38, 38, 0.8) !important;
}

/* Orange-Red with Background: 67-69 */
.score-circle-elegant[data-alert-level="67"],
.score-circle-elegant[data-alert-level="68"],
.score-circle-elegant[data-alert-level="69"] {
    background: rgba(220, 38, 38, 0.15) !important;
    box-shadow: 0 0 0 2.5px rgba(220, 38, 38, 0.8) !important;
}

/* Red Alert Pulse: 70-89 */
.score-circle-elegant[data-alert-level="70"],
.score-circle-elegant[data-alert-level="71"],
.score-circle-elegant[data-alert-level="72"],
.score-circle-elegant[data-alert-level="73"],
.score-circle-elegant[data-alert-level="74"],
.score-circle-elegant[data-alert-level="75"],
.score-circle-elegant[data-alert-level="76"],
.score-circle-elegant[data-alert-level="77"],
.score-circle-elegant[data-alert-level="78"],
.score-circle-elegant[data-alert-level="79"],
.score-circle-elegant[data-alert-level="80"],
.score-circle-elegant[data-alert-level="81"],
.score-circle-elegant[data-alert-level="82"],
.score-circle-elegant[data-alert-level="83"],
.score-circle-elegant[data-alert-level="84"],
.score-circle-elegant[data-alert-level="85"],
.score-circle-elegant[data-alert-level="86"],
.score-circle-elegant[data-alert-level="87"],
.score-circle-elegant[data-alert-level="88"],
.score-circle-elegant[data-alert-level="89"] {
    background: rgba(220, 38, 38, 0.2) !important;
    box-shadow: 0 0 0 2.5px rgba(220, 38, 38, 0.8) !important;
    animation: alertPulse 2s ease-in-out infinite;
}

/* Dark Red Alert Pulse: 90-100 */
.score-circle-elegant[data-alert-level="90"],
.score-circle-elegant[data-alert-level="91"],
.score-circle-elegant[data-alert-level="92"],
.score-circle-elegant[data-alert-level="93"],
.score-circle-elegant[data-alert-level="94"],
.score-circle-elegant[data-alert-level="95"],
.score-circle-elegant[data-alert-level="96"],
.score-circle-elegant[data-alert-level="97"],
.score-circle-elegant[data-alert-level="98"],
.score-circle-elegant[data-alert-level="99"],
.score-circle-elegant[data-alert-level="100"] {
    background: rgba(127, 29, 29, 0.25) !important;
    box-shadow: 0 0 0 2.5px rgba(127, 29, 29, 0.8) !important;
    animation: alertPulse 2s ease-in-out infinite;
}


.score-value-elegant {
    position: relative;
    z-index: 2;
    font-size: 25px;
    font-weight: 600;
    color: var(--text-primary);
    text-shadow: none;
}

.alert-status-label {
    font-size: 8px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

.score-circle-small {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: #34d399;
    padding: 2px;
    transition: background-color 0.3s ease;
    box-shadow: 0 4px 12px rgba(52, 211, 153, 0.3);
}

.score-circle-small::after {
    content: '';
    position: absolute;
    width: 78px;
    height: 78px;
    border-radius: 50%;
    background-color: var(--bg-card);
}

/* Color variations for score-circle-small based on data-alert-level */

/* Green: 0-19 */
.score-circle-small[data-alert-level="0"],
.score-circle-small[data-alert-level="1"],
.score-circle-small[data-alert-level="2"],
.score-circle-small[data-alert-level="3"],
.score-circle-small[data-alert-level="4"],
.score-circle-small[data-alert-level="5"],
.score-circle-small[data-alert-level="6"],
.score-circle-small[data-alert-level="7"],
.score-circle-small[data-alert-level="8"],
.score-circle-small[data-alert-level="9"],
.score-circle-small[data-alert-level="10"],
.score-circle-small[data-alert-level="11"],
.score-circle-small[data-alert-level="12"],
.score-circle-small[data-alert-level="13"],
.score-circle-small[data-alert-level="14"],
.score-circle-small[data-alert-level="15"],
.score-circle-small[data-alert-level="16"],
.score-circle-small[data-alert-level="17"],
.score-circle-small[data-alert-level="18"],
.score-circle-small[data-alert-level="19"] {
    background: rgba(5, 150, 105, 0.8) !important;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3) !important;
}

/* Yellow-Green: 20-29 */
.score-circle-small[data-alert-level="20"],
.score-circle-small[data-alert-level="21"],
.score-circle-small[data-alert-level="22"],
.score-circle-small[data-alert-level="23"],
.score-circle-small[data-alert-level="24"],
.score-circle-small[data-alert-level="25"],
.score-circle-small[data-alert-level="26"],
.score-circle-small[data-alert-level="27"],
.score-circle-small[data-alert-level="28"],
.score-circle-small[data-alert-level="29"] {
    background: linear-gradient(135deg, rgba(78, 172, 76, 0.9) 0%, rgba(180, 145, 23, 0.7) 100%) !important;
    box-shadow: 0 4px 12px rgba(78, 172, 76, 0.3) !important;
}

/* Yellow: 30-39 */
.score-circle-small[data-alert-level="30"],
.score-circle-small[data-alert-level="31"],
.score-circle-small[data-alert-level="32"],
.score-circle-small[data-alert-level="33"],
.score-circle-small[data-alert-level="34"],
.score-circle-small[data-alert-level="35"],
.score-circle-small[data-alert-level="36"],
.score-circle-small[data-alert-level="37"],
.score-circle-small[data-alert-level="38"],
.score-circle-small[data-alert-level="39"] {
    background: rgba(180, 145, 23, 0.8) !important;
    box-shadow: 0 4px 12px rgba(180, 145, 23, 0.3) !important;
}

/* Yellow-Orange: 40-49 */
.score-circle-small[data-alert-level="40"],
.score-circle-small[data-alert-level="41"],
.score-circle-small[data-alert-level="42"],
.score-circle-small[data-alert-level="43"],
.score-circle-small[data-alert-level="44"],
.score-circle-small[data-alert-level="45"],
.score-circle-small[data-alert-level="46"],
.score-circle-small[data-alert-level="47"],
.score-circle-small[data-alert-level="48"],
.score-circle-small[data-alert-level="49"] {
    background: linear-gradient(135deg, rgba(180, 145, 23, 0.9) 0%, rgba(180, 88, 12, 0.7) 100%) !important;
    box-shadow: 0 4px 12px rgba(180, 88, 12, 0.3) !important;
}

/* Orange: 50-59 */
.score-circle-small[data-alert-level="50"],
.score-circle-small[data-alert-level="51"],
.score-circle-small[data-alert-level="52"],
.score-circle-small[data-alert-level="53"],
.score-circle-small[data-alert-level="54"],
.score-circle-small[data-alert-level="55"],
.score-circle-small[data-alert-level="56"],
.score-circle-small[data-alert-level="57"],
.score-circle-small[data-alert-level="58"],
.score-circle-small[data-alert-level="59"] {
    background: rgba(180, 88, 12, 0.8) !important;
    box-shadow: 0 4px 12px rgba(180, 88, 12, 0.3) !important;
}

/* Orange-Red: 60-69 */
.score-circle-small[data-alert-level="60"],
.score-circle-small[data-alert-level="61"],
.score-circle-small[data-alert-level="62"],
.score-circle-small[data-alert-level="63"],
.score-circle-small[data-alert-level="64"],
.score-circle-small[data-alert-level="65"],
.score-circle-small[data-alert-level="66"],
.score-circle-small[data-alert-level="67"],
.score-circle-small[data-alert-level="68"],
.score-circle-small[data-alert-level="69"] {
    background: linear-gradient(135deg, rgba(180, 88, 12, 0.9) 0%, rgba(220, 38, 38, 0.7) 100%) !important;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3) !important;
}

/* Red: 70-89 */
.score-circle-small[data-alert-level="70"],
.score-circle-small[data-alert-level="71"],
.score-circle-small[data-alert-level="72"],
.score-circle-small[data-alert-level="73"],
.score-circle-small[data-alert-level="74"],
.score-circle-small[data-alert-level="75"],
.score-circle-small[data-alert-level="76"],
.score-circle-small[data-alert-level="77"],
.score-circle-small[data-alert-level="78"],
.score-circle-small[data-alert-level="79"],
.score-circle-small[data-alert-level="80"],
.score-circle-small[data-alert-level="81"],
.score-circle-small[data-alert-level="82"],
.score-circle-small[data-alert-level="83"],
.score-circle-small[data-alert-level="84"],
.score-circle-small[data-alert-level="85"],
.score-circle-small[data-alert-level="86"],
.score-circle-small[data-alert-level="87"],
.score-circle-small[data-alert-level="88"],
.score-circle-small[data-alert-level="89"] {
    background: rgba(220, 38, 38, 0.8) !important;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3) !important;
}

/* Dark Red: 90-100 */
.score-circle-small[data-alert-level="90"],
.score-circle-small[data-alert-level="91"],
.score-circle-small[data-alert-level="92"],
.score-circle-small[data-alert-level="93"],
.score-circle-small[data-alert-level="94"],
.score-circle-small[data-alert-level="95"],
.score-circle-small[data-alert-level="96"],
.score-circle-small[data-alert-level="97"],
.score-circle-small[data-alert-level="98"],
.score-circle-small[data-alert-level="99"],
.score-circle-small[data-alert-level="100"] {
    background: rgba(127, 29, 29, 0.8) !important;
    box-shadow: 0 4px 12px rgba(127, 29, 29, 0.3) !important;
}

.score-value-small {
    position: relative;
    z-index: 1;
    font-size: 28px;
    font-weight: bold;
    transition: color 0.3s ease;
}



.sensor-header-detail h1 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 4px 0;
    color: var(--text-primary);
}

.sensor-header-detail p {
    margin: 4px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.sensor-id {
    font-size: 14px !important;
    color: var(--text-secondary) !important;
    margin-top: 12px !important;
}

/* ============= LAST MEASUREMENTS ============= */
.last-measurements-section {
    display: none;
    margin-bottom: 40px;
}

.last-measurements-section h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
}

/* ============= LAST MEASUREMENTS SECTION ============= */
.last-measurements-section {
    display: none;
    flex-direction: column;
    justify-content: flex-start;
}

/* ============= INDICATORS ============= */
.indicators-grid {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.indicator-card {
    display: none;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(30, 41, 59, 0.6) 100%);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.indicator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.indicator-header h3 {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}

.unit {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 600;
}

.indicator-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-light);
}

/* ============= METRICS ROW ============= */
.metrics-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

/* ============= FOULING CHART ROW (Large) ============= */
.fouling-chart-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.fouling-chart-row .chart-container {
    max-height: none;
    min-height: 300px;
}

.fouling-chart-row .chart-container canvas {
    max-height: 280px;
    height: 280px !important;
}

/* ============= ALERT SECTION ============= */
.alert-section {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(30, 41, 59, 0.6) 100%);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 16px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 240px;
}

.alert-score-container {
    text-align: center;
}

.alert-score-container h3 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 10px;
    justify-content: center;
}

.alert-score {
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
}

.score-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--alert-low);
    padding: 4px;
    transition: background-color 0.3s ease;
}

.score-circle::after {
    content: '';
    position: absolute;
    width: 115px;
    height: 115px;
    border-radius: 50%;
    background-color: var(--bg-card);
}



.score-value {
    position: relative;
    z-index: 1;
    font-size: 40px;
    font-weight: bold;
    transition: color 0.3s ease;
}



.score-label {
    position: relative;
    z-index: 1;
    font-size: 12px;
    color: var(--text-secondary);
}

.alert-description {
    color: var(--text-secondary);
    font-size: 12px;
}

/* ============= TIME SERIES ROW ============= */
.time-series-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

/* ============= CHARTS ============= */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 24px;
}

.chart-container {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(30, 41, 59, 0.6) 100%);
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    padding: 12px;
    position: relative;
}

.metrics-row .chart-container {
    max-height: none;
    min-height: 220px;
    display: flex;
    flex-direction: column;
}

.metrics-row .chart-container canvas {
    max-height: 200px;
    height: 200px !important;
}

.chart-container h3 {
    font-size: 13px;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.chart-container canvas {
    width: 100% !important;
}

.fouling-chart-row .chart-container canvas {
    max-height: 350px;
    height: 350px !important;
}

/* ============= RESPONSIVE ============= */
@media (max-width: 768px) {
    .navbar {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 12px;
    }

    .navbar-menu {
        flex-wrap: wrap;
        gap: 10px;
    }

    .dashboard-content,
    .sensor-detail-content {
        padding: 20px;
    }

    .header h1 {
        font-size: 24px;
    }

    .sensors-grid {
        grid-template-columns: 1fr;
    }

    .sensor-header-detail {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .indicators-grid {
        grid-template-columns: 1fr;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 30px 20px;
    }
}

/* ============= FOOTER ============= */
.app-footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 12px;
    background-color: var(--bg-card);
    position: relative;
    bottom: 0;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
}

.app-footer .version {
    font-weight: 600;
    color: var(--primary-light);
    margin: 0 8px;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 15px;
}

.footer-version-section {
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-language-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.language-selector {
    display: flex;
    gap: 12px;
    align-items: center;
}

.language-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-size: 12px;
    cursor: pointer;
}

.language-link:hover {
    background-color: rgba(139, 92, 246, 0.1);
    color: var(--primary-light);
}

.language-link.active {
    color: var(--primary-light);
    font-weight: 600;
    background-color: rgba(139, 92, 246, 0.2);
}

.footer-copyright {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Notifications Container */
#alert-notifications-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 10000;
    pointer-events: none;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    overflow-x: hidden;
}

#alert-notifications-container .alert-notification {
    pointer-events: auto;
}

/* ============= ALERT NOTIFICATIONS ============= */
.alert-notification {
    position: relative;
    bottom: auto;
    right: auto;
    max-width: 240px;
    width: auto;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.95) 0%, rgba(220, 38, 38, 0.95) 100%);
    border: none;
    border-radius: 12px;
    padding: 14px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 60px rgba(239, 68, 68, 0.4);
    animation: slideInRight 0.4s ease-out;
    transition: transform 0.2s ease;
}

.alert-notification:hover {
    box-shadow: 0 25px 70px rgba(239, 68, 68, 0.5);
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.alert-notification-content {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.alert-notification-icon {
    font-size: 28px;
    flex-shrink: 0;
    animation: pulse 1s ease-in-out infinite;
}

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

.alert-notification-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.alert-notification-title {
    font-size: 16px;
    font-weight: 700;
    color: white;
    letter-spacing: 0.3px;
}

.alert-notification-message {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.4;
}

.alert-notification-message strong {
    color: white;
    font-weight: 700;
}

.alert-notification-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    align-items: center;
}

.alert-notification-btn {
    padding: 8px 14px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.alert-notification-btn.go-to-sensor {
    background-color: white;
    color: #ef4444;
}

.alert-notification-btn.go-to-sensor:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.alert-notification-btn.close-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 6px 10px;
    min-width: auto;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alert-notification-btn.close-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Critical Alert Notification (Level 100) */
.alert-notification.critical-alert {
    background: linear-gradient(135deg, rgba(127, 29, 29, 0.98) 0%, rgba(153, 27, 27, 0.98) 100%);
    box-shadow: 0 20px 60px rgba(127, 29, 29, 0.6);
    animation: slideInRight 0.3s ease-out;
}

.alert-notification.critical-alert .alert-notification-icon {
    font-size: 32px;
}

@media (max-width: 600px) {
    .alert-notification {
        width: 85%;
    }
    
    .alert-notification-content {
        flex-direction: column;
        gap: 12px;
    }
    
    .alert-notification-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .alert-notification-btn {
        width: 100%;
    }
    
    .alert-notification-btn.close-btn {
        width: auto;
    }
}

/* ============= ALERT HISTORY MODAL ============= */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    animation: fadeIn 0.3s ease-out;
}

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

.modal-content {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(30, 41, 59, 0.8) 100%);
    border: 1px solid var(--primary-color);
    margin: 5% auto;
    padding: 0;
    max-width: 900px;
    width: 90%;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(139, 92, 246, 0.3);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    color: var(--primary-light);
    font-size: 24px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

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

.modal-body {
    padding: 24px;
    max-height: 600px;
    overflow-y: auto;
}

.loader {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
    font-size: 16px;
}

.no-alerts-message {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(30, 41, 59, 0.3) 100%);
    border: 1px dashed #10b981;
    border-radius: 8px;
    font-size: 16px;
}

.alerts-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0;
}

.alerts-table thead {
    background-color: rgba(139, 92, 246, 0.15);
    border-bottom: 2px solid var(--primary-color);
}

.alerts-table th {
    padding: 12px;
    text-align: left;
    color: var(--primary-light);
    font-weight: 600;
    font-size: 14px;
}

.alerts-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

.alerts-table tbody tr:hover {
    background-color: rgba(139, 92, 246, 0.1);
}

.alerts-table tbody tr:last-child td {
    border-bottom: none;
}

@media (max-width: 768px) {
    .modal-content {
        margin: 20% auto;
        width: 95%;
    }
    
    .modal-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .modal-close {
        align-self: flex-end;
    }
    
    .modal-body {
        padding: 16px;
        max-height: 70vh;
    }
    
    .alerts-table {
        font-size: 12px;
    }
    
    .alerts-table th,
    .alerts-table td {
        padding: 8px;
    }
}

/* ============= CHART LOADERS ============= */
.chart-loader {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.7) 0%, rgba(30, 41, 59, 0.5) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 15px;
    z-index: 100;
    border-radius: 8px;
    backdrop-filter: blur(8px);
}

.chart-spinner {
    position: relative;
    width: 50px;
    height: 50px;
}

.chart-spinner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: #8b5cf6;
    border-right-color: #a78bfa;
    border-radius: 50%;
    animation: spinSmooth 2s linear infinite;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.chart-spinner::after {
    display: none;
}

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

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(139, 92, 246, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(139, 92, 246, 0);
    }
}

.chart-loader p {
    color: #a78bfa;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    animation: fadeInOut 2s ease-in-out infinite;
    margin: 0;
    padding: 0;
}

@keyframes fadeInOut {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

.empty-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    display: none;  /* Default: hidden */
    align-items: center;
    justify-content: center;
    background: rgba(248, 250, 252, 0.02);
    border-radius: 12px;
    z-index: 10;
}

.empty-message p {
    color: #94a3b8;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin: 0;
    padding: 0;
    text-align: center;
}

.chart-container {
    position: relative;
}

/* Alert Level Colors - Gradual 5-tier color system */

/* Green: 0-19 */
.alert-level[data-alert-level="0"],
.alert-level[data-alert-level="1"],
.alert-level[data-alert-level="2"],
.alert-level[data-alert-level="3"],
.alert-level[data-alert-level="4"],
.alert-level[data-alert-level="5"],
.alert-level[data-alert-level="6"],
.alert-level[data-alert-level="7"],
.alert-level[data-alert-level="8"],
.alert-level[data-alert-level="9"],
.alert-level[data-alert-level="10"],
.alert-level[data-alert-level="11"],
.alert-level[data-alert-level="12"],
.alert-level[data-alert-level="13"],
.alert-level[data-alert-level="14"],
.alert-level[data-alert-level="15"],
.alert-level[data-alert-level="16"],
.alert-level[data-alert-level="17"],
.alert-level[data-alert-level="18"],
.alert-level[data-alert-level="19"] {
    background-color: #34d399 !important;
    color: white !important;
    border-left: 4px solid #10b981 !important;
}

/* Yellow-Green: 20-29 */
.alert-level[data-alert-level="20"],
.alert-level[data-alert-level="21"],
.alert-level[data-alert-level="22"],
.alert-level[data-alert-level="23"],
.alert-level[data-alert-level="24"],
.alert-level[data-alert-level="25"],
.alert-level[data-alert-level="26"],
.alert-level[data-alert-level="27"],
.alert-level[data-alert-level="28"],
.alert-level[data-alert-level="29"] {
    background: linear-gradient(to right, #10b981, #eab308) !important;
    color: white !important;
    border-left: 4px solid #10b981 !important;
}

/* Yellow: 30-39 */
.alert-level[data-alert-level="30"],
.alert-level[data-alert-level="31"],
.alert-level[data-alert-level="32"],
.alert-level[data-alert-level="33"],
.alert-level[data-alert-level="34"],
.alert-level[data-alert-level="35"],
.alert-level[data-alert-level="36"],
.alert-level[data-alert-level="37"],
.alert-level[data-alert-level="38"],
.alert-level[data-alert-level="39"] {
    background-color: #eab308 !important;
    color: #1f2937 !important;
    border-left: 4px solid #ca8a04 !important;
}

/* Yellow-Orange: 40-49 */
.alert-level[data-alert-level="40"],
.alert-level[data-alert-level="41"],
.alert-level[data-alert-level="42"],
.alert-level[data-alert-level="43"],
.alert-level[data-alert-level="44"],
.alert-level[data-alert-level="45"],
.alert-level[data-alert-level="46"],
.alert-level[data-alert-level="47"],
.alert-level[data-alert-level="48"],
.alert-level[data-alert-level="49"] {
    background: linear-gradient(to right, #eab308, #fb923c) !important;
    color: white !important;
    border-left: 4px solid #fb923c !important;
}

/* Orange: 50-59 */
.alert-level[data-alert-level="50"],
.alert-level[data-alert-level="51"],
.alert-level[data-alert-level="52"],
.alert-level[data-alert-level="53"],
.alert-level[data-alert-level="54"],
.alert-level[data-alert-level="55"],
.alert-level[data-alert-level="56"],
.alert-level[data-alert-level="57"],
.alert-level[data-alert-level="58"],
.alert-level[data-alert-level="59"] {
    background-color: #fb923c !important;
    color: white !important;
    border-left: 4px solid #ea580c !important;
}

/* Orange-Red: 60-69 */
.alert-level[data-alert-level="60"],
.alert-level[data-alert-level="61"],
.alert-level[data-alert-level="62"],
.alert-level[data-alert-level="63"],
.alert-level[data-alert-level="64"],
.alert-level[data-alert-level="65"],
.alert-level[data-alert-level="66"],
.alert-level[data-alert-level="67"],
.alert-level[data-alert-level="68"],
.alert-level[data-alert-level="69"] {
    background: linear-gradient(to right, #ea580c, #f87171) !important;
    color: white !important;
    border-left: 4px solid #f87171 !important;
}

/* Red: 70-89 */
.alert-level[data-alert-level="70"],
.alert-level[data-alert-level="71"],
.alert-level[data-alert-level="72"],
.alert-level[data-alert-level="73"],
.alert-level[data-alert-level="74"],
.alert-level[data-alert-level="75"],
.alert-level[data-alert-level="76"],
.alert-level[data-alert-level="77"],
.alert-level[data-alert-level="78"],
.alert-level[data-alert-level="79"],
.alert-level[data-alert-level="80"],
.alert-level[data-alert-level="81"],
.alert-level[data-alert-level="82"],
.alert-level[data-alert-level="83"],
.alert-level[data-alert-level="84"],
.alert-level[data-alert-level="85"],
.alert-level[data-alert-level="86"],
.alert-level[data-alert-level="87"],
.alert-level[data-alert-level="88"],
.alert-level[data-alert-level="89"] {
    background-color: #f87171 !important;
    color: white !important;
    border-left: 4px solid #dc2626 !important;
}

/* Dark Red: 90-100 */
.alert-level[data-alert-level="90"],
.alert-level[data-alert-level="91"],
.alert-level[data-alert-level="92"],
.alert-level[data-alert-level="93"],
.alert-level[data-alert-level="94"],
.alert-level[data-alert-level="95"],
.alert-level[data-alert-level="96"],
.alert-level[data-alert-level="97"],
.alert-level[data-alert-level="98"],
.alert-level[data-alert-level="99"],
.alert-level[data-alert-level="100"] {
    background-color: #991b1b !important;
    color: white !important;
    border-left: 4px solid #7f1d1d !important;
}

/* Alert Indicator for sensor detail page */

/* Green: 0-19 */
.alert-indicator[data-alert-level="0"],
.alert-indicator[data-alert-level="1"],
.alert-indicator[data-alert-level="2"],
.alert-indicator[data-alert-level="3"],
.alert-indicator[data-alert-level="4"],
.alert-indicator[data-alert-level="5"],
.alert-indicator[data-alert-level="6"],
.alert-indicator[data-alert-level="7"],
.alert-indicator[data-alert-level="8"],
.alert-indicator[data-alert-level="9"],
.alert-indicator[data-alert-level="10"],
.alert-indicator[data-alert-level="11"],
.alert-indicator[data-alert-level="12"],
.alert-indicator[data-alert-level="13"],
.alert-indicator[data-alert-level="14"],
.alert-indicator[data-alert-level="15"],
.alert-indicator[data-alert-level="16"],
.alert-indicator[data-alert-level="17"],
.alert-indicator[data-alert-level="18"],
.alert-indicator[data-alert-level="19"] {
    background-color: #34d399 !important;
    color: white !important;
}

/* Yellow-Green: 20-29 */
.alert-indicator[data-alert-level="20"],
.alert-indicator[data-alert-level="21"],
.alert-indicator[data-alert-level="22"],
.alert-indicator[data-alert-level="23"],
.alert-indicator[data-alert-level="24"],
.alert-indicator[data-alert-level="25"],
.alert-indicator[data-alert-level="26"],
.alert-indicator[data-alert-level="27"],
.alert-indicator[data-alert-level="28"],
.alert-indicator[data-alert-level="29"] {
    background: linear-gradient(to right, #10b981, #eab308) !important;
    color: white !important;
}

/* Yellow: 30-39 */
.alert-indicator[data-alert-level="30"],
.alert-indicator[data-alert-level="31"],
.alert-indicator[data-alert-level="32"],
.alert-indicator[data-alert-level="33"],
.alert-indicator[data-alert-level="34"],
.alert-indicator[data-alert-level="35"],
.alert-indicator[data-alert-level="36"],
.alert-indicator[data-alert-level="37"],
.alert-indicator[data-alert-level="38"],
.alert-indicator[data-alert-level="39"] {
    background-color: #eab308 !important;
    color: #1f2937 !important;
}

/* Yellow-Orange: 40-49 */
.alert-indicator[data-alert-level="40"],
.alert-indicator[data-alert-level="41"],
.alert-indicator[data-alert-level="42"],
.alert-indicator[data-alert-level="43"],
.alert-indicator[data-alert-level="44"],
.alert-indicator[data-alert-level="45"],
.alert-indicator[data-alert-level="46"],
.alert-indicator[data-alert-level="47"],
.alert-indicator[data-alert-level="48"],
.alert-indicator[data-alert-level="49"] {
    background: linear-gradient(to right, #eab308, #fb923c) !important;
    color: white !important;
}

/* Orange: 50-59 */
.alert-indicator[data-alert-level="50"],
.alert-indicator[data-alert-level="51"],
.alert-indicator[data-alert-level="52"],
.alert-indicator[data-alert-level="53"],
.alert-indicator[data-alert-level="54"],
.alert-indicator[data-alert-level="55"],
.alert-indicator[data-alert-level="56"],
.alert-indicator[data-alert-level="57"],
.alert-indicator[data-alert-level="58"],
.alert-indicator[data-alert-level="59"] {
    background-color: #fb923c !important;
    color: white !important;
}

/* Orange-Red: 60-69 */
.alert-indicator[data-alert-level="60"],
.alert-indicator[data-alert-level="61"],
.alert-indicator[data-alert-level="62"],
.alert-indicator[data-alert-level="63"],
.alert-indicator[data-alert-level="64"],
.alert-indicator[data-alert-level="65"],
.alert-indicator[data-alert-level="66"],
.alert-indicator[data-alert-level="67"],
.alert-indicator[data-alert-level="68"],
.alert-indicator[data-alert-level="69"] {
    background: linear-gradient(to right, #ea580c, #f87171) !important;
    color: white !important;
}

/* Red: 70-89 */
.alert-indicator[data-alert-level="70"],
.alert-indicator[data-alert-level="71"],
.alert-indicator[data-alert-level="72"],
.alert-indicator[data-alert-level="73"],
.alert-indicator[data-alert-level="74"],
.alert-indicator[data-alert-level="75"],
.alert-indicator[data-alert-level="76"],
.alert-indicator[data-alert-level="77"],
.alert-indicator[data-alert-level="78"],
.alert-indicator[data-alert-level="79"],
.alert-indicator[data-alert-level="80"],
.alert-indicator[data-alert-level="81"],
.alert-indicator[data-alert-level="82"],
.alert-indicator[data-alert-level="83"],
.alert-indicator[data-alert-level="84"],
.alert-indicator[data-alert-level="85"],
.alert-indicator[data-alert-level="86"],
.alert-indicator[data-alert-level="87"],
.alert-indicator[data-alert-level="88"],
.alert-indicator[data-alert-level="89"] {
    background-color: #f87171 !important;
    color: white !important;
}

/* Dark Red: 90-100 */
.alert-indicator[data-alert-level="90"],
.alert-indicator[data-alert-level="91"],
.alert-indicator[data-alert-level="92"],
.alert-indicator[data-alert-level="93"],
.alert-indicator[data-alert-level="94"],
.alert-indicator[data-alert-level="95"],
.alert-indicator[data-alert-level="96"],
.alert-indicator[data-alert-level="97"],
.alert-indicator[data-alert-level="98"],
.alert-indicator[data-alert-level="99"],
.alert-indicator[data-alert-level="100"] {
    background-color: #991b1b !important;
    color: white !important;
}

.alert-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 18px;
}

.alert-indicator {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: bold;
    text-align: center;
}

/* ============= ALERT PROGRESS BAR ============= */
.alert-progress-bar {
    width: 100%;
    height: 24px;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(90deg, 
        rgba(5, 150, 105, 0.3) 0%,
        rgba(78, 172, 76, 0.3) 19%,
        rgba(180, 145, 23, 0.3) 39%,
        rgba(180, 88, 12, 0.3) 59%,
        rgba(220, 38, 38, 0.3) 79%,
        rgba(127, 29, 29, 0.3) 100%);
    border: 1px solid rgba(100, 116, 139, 0.2);
    position: relative;
    margin: 8px 0;
}

.progress-track {
    width: 100%;
    height: 100%;
    position: relative;
}

.progress-indicator {
    position: absolute;
    top: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.2) 100%);
    transform: translateX(-50%);
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.3);
}

/* Mini progress bar for alert badge */
.alert-progress-bar-mini {
    width: 100%;
    height: 3px;
    border-radius: 2px;
    overflow: hidden;
    background: linear-gradient(90deg, 
        rgba(5, 150, 105, 0.4) 0%,
        rgba(78, 172, 76, 0.4) 19%,
        rgba(180, 145, 23, 0.4) 39%,
        rgba(180, 88, 12, 0.4) 59%,
        rgba(220, 38, 38, 0.4) 79%,
        rgba(127, 29, 29, 0.4) 100%);
    position: relative;
    margin-top: 6px;
}

.alert-progress-bar-mini[data-alert-level="no-data"] {
    display: none !important;
}

.progress-track-mini {
    width: 100%;
    height: 100%;
    position: relative;
}

.progress-indicator-mini {
    position: absolute;
    top: 0;
    width: 6px;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(-50%);
    border-radius: 3px;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
    filter: blur(0.5px);
}