/* Style pour l'écran de démarrage */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.splash-screen.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-20px);
}

.splash-logo {
    width: 200px;
    height: 200px;
    margin-bottom: 2rem;
    animation: pulse 2s infinite;
}

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

.splash-title {
    color: #fff;
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    font-family: 'Arial Black', sans-serif;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.splash-subtitle {
    color: #64f4ac;
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.splash-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin: 1rem 0;
}

.splash-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #00d1b2, #64f4ac);
    transition: width 0.3s ease;
    border-radius: 2px;
}

.splash-start-btn {
    background: linear-gradient(45deg, #00d1b2, #64f4ac);
    color: white;
    border: none;
    padding: 12px 40px;
    font-size: 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    margin-top: 2rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(0, 209, 178, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s 1.5s forwards;
}

.splash-start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 209, 178, 0.4);
}

.splash-start-btn:active {
    transform: translateY(0);
}

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

.splash-loading {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-top: 1rem;
    text-align: center;
    min-height: 20px;
}

.splash-version {
    position: absolute;
    bottom: 20px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
}