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

:root {
    --primary-color: #3E54AC;
    --secondary-color: #655DBB;
    --accent-color: #BFACE2;
    --light-accent: #ECF2FF;
    --dark-color: #333333;
    --light-color: #ffffff;
    --bg-color: #F8F9FA;
    --text-color: #444444;
    --transition-speed: 0.3s;
}

body {
    font-family: 'Poppins', Arial, sans-serif;
    overflow-x: hidden;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.slide {
    height: 100vh;
    width: 100vw;
    text-align: center;
    padding: 2rem;
    position: relative;
}

.slide-content {
    max-width: 800px;
    margin: auto;
}

.slide h2 {
    font-size: 3rem;
    color: var(--dark-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.slide h3 {
    font-size: 1.5rem;
    color: var(--text-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.slide p {
    font-size: 1.2rem;
    margin-top: 1.5em;
    line-height: 1.6;
    color: var(--text-color);
}

.arrow {
    position: absolute;
    bottom: 2rem;
    width: 4%;
    min-width: 40px;
    max-width: 60px;
    transition: all var(--transition-speed);
    z-index: 20;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
    animation: arrowPulse 2s ease-in-out infinite;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}

@keyframes arrowPulse {
    0%, 100% {
        opacity: 0.7;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateX(-50%) translateY(8px);
    }
}

.arrow:hover {
    transform: translateX(-50%) scale(1.2) translateY(5px) !important;
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.8));
    animation-play-state: paused;
}

.parallax {
    height: 0vh;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
}

.parallax::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 900px) {
    .contact-container {
        flex-direction: column;
    }

    .contact-card {
        width: 90%;
        padding: 2rem;
    }

    .footer-section {
        flex-basis: 100%;
        text-align: center;
        margin-bottom: 2rem;
    }

    .footer-section h3:after {
        left: 50%;
        transform: translateX(-50%);
    }

    .social-icons {
        justify-content: center;
    }
    
    .horizontal-slide {
        flex-direction: column;
        height: auto;
    }
    
    .parallax-horizontal {
        width: 100%;
        height: 20vh;
    }
    
    .horizontal-slide .slide-content {
        width: 100%;
    }
    
    #slide3 img {
        width: 60vw;
    }
    
    .passions-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .arrow {
        width: 8%;
    }
}

@media (max-width: 480px) {
    .arrow {
        width: 10%;
        min-width: 35px;
    }
}