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

body {
    font-family: 'Inter', sans-serif;
    background-color: #ffffff; /* Pure white */
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(57, 163, 73, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(57, 163, 73, 0.05) 0%, transparent 40%);
    background-attachment: fixed;
    display: flex;
    justify-content: center;
    perspective: 1000px; /* Required for 3D effects */
}

/* Splash Screen Zentrierung */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: white;
    z-index: 1000;
    perspective: 1000px;
}

.logo-3d {
    animation: logo3DEntrance 1.2s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    transform-style: preserve-3d;
}

@keyframes logo3DEntrance {
    0% {
        opacity: 0;
        transform: translateZ(-300px) rotateY(-60deg) scale(0.5);
        filter: blur(10px);
    }
    70% {
        opacity: 1;
        transform: translateZ(50px) rotateY(10deg) scale(1.05);
        filter: blur(0);
    }
    100% {
        transform: translateZ(0) rotateY(0deg) scale(1);
        filter: blur(0);
    }
}

.logo-img {
    width: 450px; /* Maximized splash logo */
    max-width: 95%;
    height: auto;
}

/* Content Steuerung */
.content-hidden {
    opacity: 0;
    display: none;
}

.content-fade-in {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 500px;
    animation: fadeIn 0.8s forwards;
}

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

/* Header Zentrierung */
.header {
    text-align: center;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header-logo {
    width: 350px; /* Maximized header logo */
    max-width: 95%;
    margin-bottom: 30px;
}

.subtitle {
    font-weight: 500;
    color: #555;
}

/* Links Container & Buttons */
.links-container {
    width: 100%;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.link-btn {
    display: flex;
    align-items: center;
    /* Vertikal mittig */
    justify-content: center;
    /* Horizontal mittig */
    padding: 15px;
    border-radius: 12px;
    background: white;
    color: #333;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

.link-btn:hover {
    transform: translateY(-2px);
}

.link-btn svg {
    width: 24px;
    height: 24px;
    margin-right: 12px;
    transition: transform 0.3s ease;
    /* Abstand zum Text */
    fill: currentColor;
    /* Verwendet die Textfarbe des Buttons */
}

/* AUTHENTIC BRAND COLORS (Manufacturer colors) */
.btn-web svg { fill: #39a349; } /* IT Bas Solutions Green */
.btn-insta svg { fill: #E1306C; } /* Instagram Pink */
.btn-wa svg { fill: #25D366; } /* WhatsApp Green */
.btn-phone svg { fill: #39a349; } /* Phone Green */
.btn-linkedin svg { fill: #0A66C2; } /* LinkedIn Blue */

/* Premium Brand Hover Effects */
.btn-web:hover { border-color: #39a349; box-shadow: 0 4px 15px rgba(57, 163, 73, 0.2); }
.btn-insta:hover { border-color: #E1306C; box-shadow: 0 4px 15px rgba(225, 48, 108, 0.2); }
.btn-wa:hover { border-color: #25D366; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.2); }
.btn-phone:hover { border-color: #39a349; box-shadow: 0 4px 15px rgba(57, 163, 73, 0.2); }
.btn-linkedin:hover { border-color: #0A66C2; box-shadow: 0 4px 15px rgba(10, 102, 194, 0.2); }

/* Footer Zentrierung */
.footer {
    margin-top: 40px;
    padding: 20px;
    text-align: center;
}

.footer-link {
    color: #888;
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-dot {
    margin: 0 8px;
    color: #ccc;
}

/* Mobile Responsiveness Fine-Tuning */
@media (max-width: 480px) {
    .header {
        padding: 30px 15px;
    }
    
    .subtitle {
        font-size: 0.9rem;
    }
    
    .link-btn {
        padding: 14px;
        font-size: 0.95rem;
    }
}