* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.intro-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(90deg, #6990E4 20%, #7a99dd 100%);
    z-index: 1000;
    transition: all 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.intro-screen.fade-out {
    opacity: 0;
    transform: scale(0.95);
}

.intro-content {
    height: 100vh;
}

.slogan {
    color: #5C4B77;
    font-size: clamp(1.2rem, 4vw, 2.5rem);
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(92, 75, 119, 0.3);
    line-height: 1.3;
    margin-bottom: 2rem;
}

.logo-container {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
    margin: 1.5rem 0;
}

.logo-container.show {
    opacity: 1;
    transform: translateY(0);
}

.logo {
    max-width: min(300px, 80vw);
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(92, 75, 119, 0.25);
}


.enter-btn {
    background: #F6A2D4;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(177, 69, 173, 0.3);
    margin-top: 2rem;
    outline: none;
}

.enter-btn:hover {
    transition: 1s;
    box-shadow: 0 6px 20px rgba(177, 69, 173, 0.4);
    background: #f379c2;
    color: white;
}

.main-content {
    opacity: 0;
    visibility: hidden;
    transition: all 1.2s ease;
    min-height: 100vh;
    background: white;
    padding: 2rem;
}

.main-content.visible {
    opacity: 1;
    visibility: visible;
}

.welcome-text {
    font-size: 2rem;
    color: #333;
    margin-bottom: 1rem;
    font-weight: 600;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    font-weight: 300;
}

@media (max-width: 576px) {
    .enter-btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
    
    .welcome-text {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
}