:root {
    --bg-main: #ffffff;
    --border-soft: #efefef;
    --text-dark: #202124;
    --text-gray: #70757a;
    --blue-m: #4bb2d9;
    --blue-f: #5d64e6;
    --purple-v: #a370f7;
    --trend-red: #d93025;
    --trend-green: #188038;
    --lab-active: #2c3e50;
    --lab-inactive: #7f8c8d;
    --transition-speed: 0.3s;
    --chart-scale: 1.05;
}

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

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-dark);
    height: 100vh;
    overflow: hidden;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 2s forwards;
}

/* Animation d'introduction TV */
.tv-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: tvPowerOff 0.8s ease-in-out 1.5s forwards;
}

.tv-static {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: radial-gradient(circle at center, #000 0%, #111 100%);
}

.static-noise {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255,255,255,0.03) 2px,
            rgba(255,255,255,0.03) 4px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 2px,
            rgba(255,255,255,0.02) 2px,
            rgba(255,255,255,0.02) 4px
        );
    animation: staticFlicker 0.1s infinite;
}

.tv-channel {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: rgba(255,255,255,0.1);
    font-size: 3rem;
    font-family: monospace;
    letter-spacing: 0.5rem;
    animation: channelScan 1s ease-in-out;
}

.loading-animation {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 80%;
}

.loading-text {
    color: rgba(255,255,255,0.8);
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 2rem;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
    animation: textGlow 1s ease-in-out infinite alternate;
}

.loading-bar {
    width: 100%;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.loading-progress {
    position: absolute;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, transparent, var(--blue-f), transparent);
    animation: loadingProgress 1.5s ease-in-out forwards;
}

@keyframes staticFlicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

@keyframes channelScan {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    50% { opacity: 0.5; transform: translate(-50%, -50%) scale(1.1); }
    100% { opacity: 0.1; transform: translate(-50%, -50%) scale(1); }
}

@keyframes textGlow {
    0% { text-shadow: 0 0 10px rgba(255,255,255,0.5); }
    100% { text-shadow: 0 0 20px rgba(255,255,255,0.8), 0 0 30px var(--blue-f); }
}

@keyframes loadingProgress {
    0% { width: 0%; }
    100% { width: 100%; }
}

@keyframes tvPowerOff {
    0% { opacity: 1; transform: scale(1); }
    70% { opacity: 0.5; transform: scale(1.02); }
    100% { opacity: 0; transform: scale(0.95); display: none; }
}

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

.dashboard-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 20px 50px;
    opacity: 0;
    animation: slideIn 0.5s ease-out 2.2s forwards;
}

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

/* Header */
.top-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 30px;
    position: relative;
}

.top-header h1 {
    font-size: 28px;
    font-weight: 500;
    max-width: 600px;
    line-height: 1.3;
    transition: transform var(--transition-speed);
}

.top-header h1:hover {
    transform: translateX(5px);
}

.highlight-year {
    text-decoration: underline;
    text-underline-offset: 5px;
    cursor: pointer;
    position: relative;
    display: inline-block;
    padding: 0 5px;
    transition: all var(--transition-speed);
}

.highlight-year:hover {
    color: var(--blue-f);
    text-decoration-color: var(--blue-f);
    transform: translateY(-2px);
}

.highlight-year::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue-f);
    transition: width var(--transition-speed);
}

.highlight-year:hover::after {
    width: 100%;
}

.math-indicators {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.math-indicator {
    background: rgba(91, 100, 230, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--blue-f);
    cursor: help;
    position: relative;
    transition: all var(--transition-speed);
    border: 1px solid transparent;
}

.math-indicator:hover {
    background: var(--blue-f);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(91, 100, 230, 0.3);
}

.math-indicator::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-dark);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
    z-index: 100;
    margin-bottom: 10px;
}

.math-indicator:hover::before {
    opacity: 1;
    visibility: visible;
}

/* Switch Lab */
.toggle-lab {
    position: relative;
}

.toggle-lab input { 
    display: none; 
}

.toggle-lab label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--lab-inactive), #95a5a6);
    border-radius: 25px;
    color: white;
    cursor: pointer;
    transition: all var(--transition-speed);
    box-shadow: 0 4px 15px rgba(127, 140, 141, 0.2);
    position: relative;
    overflow: hidden;
}

.toggle-lab label:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(127, 140, 141, 0.3);
}

.toggle-lab label:active {
    transform: translateY(-1px);
}

.toggle-lab label::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--lab-active), #34495e);
    opacity: 0;
    transition: opacity var(--transition-speed);
    z-index: 1;
}

.toggle-lab input:checked + label::before {
    opacity: 1;
}

.toggle-lab label i,
.toggle-lab label .lab-text {
    position: relative;
    z-index: 2;
    transition: all var(--transition-speed);
}

.lab-text {
    font-weight: 600;
    font-size: 14px;
}

.toggle-lab input:checked + label i {
    transform: rotate(45deg);
}

/* Zone Graphique */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.chart-navigation {
    display: flex;
    align-items: center;
    gap: 20px;
    height: 400px;
    position: relative;
}

.chart-area {
    flex-grow: 1;
    height: 100%;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    transition: transform var(--transition-speed);
}

.chart-area:hover {
    transform: scale(1.005);
}

.chart-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    background: radial-gradient(circle at var(--mouse-x), rgba(91, 100, 230, 0.1) 0%, transparent 50%);
    transition: opacity 0.2s;
    z-index: 2;
}

.nav-arrow {
    background: rgba(91, 100, 230, 0.1);
    border: 2px solid transparent;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 24px;
    color: var(--blue-f);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-speed);
}

.nav-arrow:hover {
    background: var(--blue-f);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(91, 100, 230, 0.4);
    border-color: var(--blue-f);
}

.nav-arrow:active {
    transform: scale(0.95);
}

.arrow-tooltip {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-dark);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
}

.nav-arrow:hover .arrow-tooltip {
    opacity: 1;
    visibility: visible;
}

.year-navigation {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.year-nav {
    background: rgba(91, 100, 230, 0.1);
    border: 2px solid transparent;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 18px;
    color: var(--blue-f);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all var(--transition-speed);
}

.year-nav:hover {
    background: var(--blue-f);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(91, 100, 230, 0.3);
}

.year-nav:active {
    transform: scale(0.95);
}

.year-tooltip {
    position: absolute;
    right: 50px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--text-dark);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
}

.year-nav:hover .year-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Légende */
.custom-legend {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 25px;
    font-size: 14px;
    color: var(--text-gray);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(91, 100, 230, 0.05);
    cursor: pointer;
    position: relative;
    transition: all var(--transition-speed);
    border: 1px solid transparent;
}

.legend-item:hover {
    background: rgba(91, 100, 230, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--blue-f);
}

.legend-item::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-dark);
    color: white;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
    margin-bottom: 8px;
}

.legend-item:hover::before {
    opacity: 1;
    visibility: visible;
}

.dot {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 3px;
    transition: all var(--transition-speed);
}

.legend-item:hover .dot {
    transform: scale(1.3) rotate(45deg);
    box-shadow: 0 0 10px currentColor;
}

.dot.male { 
    background: var(--blue-m);
    box-shadow: 0 2px 4px rgba(75, 178, 217, 0.3);
}
.dot.female { 
    background: var(--blue-f);
    box-shadow: 0 2px 4px rgba(91, 100, 230, 0.3);
}
.dot.neutral { 
    background: var(--purple-v);
    box-shadow: 0 2px 4px rgba(163, 112, 247, 0.3);
}

/* Footer Métriques */
.metrics-bar {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 40px 0 20px;
}

.metric-card {
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    padding: 20px;
    position: relative;
    background: white;
    cursor: pointer;
    transition: all var(--transition-speed);
    overflow: hidden;
}

.metric-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--blue-f);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--blue-m), var(--blue-f));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-speed);
}

.metric-card:hover::before {
    transform: scaleX(1);
}

.metric-trend {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 11px;
    font-weight: bold;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all var(--transition-speed);
}

.metric-card:hover .metric-trend {
    transform: scale(1.2);
}

.trend-down { 
    background: linear-gradient(135deg, #fce8e6, #f4c7c3);
    color: var(--trend-red);
}
.trend-up { 
    background: linear-gradient(135deg, #e6f4ea, #c3e8d1);
    color: var(--trend-green);
}

.metric-value {
    font-size: 28px;
    font-weight: 600;
    margin: 15px 0 5px;
    color: var(--text-dark);
    transition: all var(--transition-speed);
}

.metric-card:hover .metric-value {
    color: var(--blue-f);
    transform: scale(1.1);
}

.metric-label {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 5px;
    transition: all var(--transition-speed);
}

.metric-card:hover .metric-label {
    color: var(--text-dark);
    font-weight: 600;
}

.metric-detail {
    font-size: 11px;
    color: var(--text-gray);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-speed);
}

.metric-card:hover .metric-detail {
    opacity: 1;
    max-height: 20px;
    margin-top: 8px;
}

/* Tooltip pour données */
.data-tooltip {
    position: fixed;
    background: linear-gradient(135deg, var(--text-dark), #34495e);
    color: white;
    padding: 15px;
    border-radius: 10px;
    font-size: 13px;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, 20px);
    transition: opacity 0.2s, transform 0.2s;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 300px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.data-tooltip::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--text-dark);
}

/* Mode artistique */
.lab-mode .dashboard-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.lab-mode .metric-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.lab-mode .chart-area {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 20px;
}

.lab-mode .math-indicator {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.lab-mode .math-indicator:hover {
    background: white;
    color: var(--blue-f);
}

/* Animations spécifiques aux données */
@keyframes barPulse {
    0% { opacity: 0.8; }
    50% { opacity: 1; }
    100% { opacity: 0.8; }
}

@keyframes dataHighlight {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.chart-bar-highlight {
    animation: dataHighlight 2s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 1200px) {
    .metrics-bar {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .math-indicators {
        gap: 10px;
    }
    
    .math-indicator {
        font-size: 11px;
        padding: 5px 10px;
    }
}

@media (max-width: 768px) {
    .dashboard-container {
        padding: 15px 20px;
    }
    
    .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .chart-navigation {
        height: 300px;
    }
    
    .top-header h1 {
        font-size: 22px;
    }
    
    .year-navigation {
        right: -30px;
    }
}