:root {
    --color-white: #FFFFFF;
    --color-light-grey: #F5F7FA;
    --color-deep-blue: #002B5C;
    --color-emerald-green: #008450;
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
}

body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    font-family: var(--font-primary);
    overflow: hidden;
    background-color: var(--color-light-grey);
}

.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: url('assets/background_skyline.png');
    background-size: cover;
    background-position: center bottom;
    opacity: 0.15; /* Subtle background */
}

.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    text-align: center;
    position: relative;
    z-index: 1;
}

.logo-container {
    margin-bottom: 2rem;
    opacity: 0; /* Animated in */
}

.logo {
    max-width: 150px;
    height: auto;
}

.title {
    font-family: var(--font-heading);
    color: var(--color-deep-blue);
    font-size: 3rem;
    margin: 0;
    opacity: 0;
}

.subtitle {
    color: var(--color-emerald-green);
    font-size: 1.5rem;
    font-weight: 300;
    margin-top: 0.5rem;
    opacity: 0;
    letter-spacing: 2px;
}

.icons-container {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    opacity: 0;
    /* Positions to be refined */
}

.icon-house { top: 20%; left: 20%; }
.icon-building { top: 25%; right: 25%; }
.icon-land { bottom: 30%; left: 15%; }
.icon-flat { bottom: 35%; right: 15%; }

.interaction-scene {
    margin-top: 3rem;
    opacity: 0;
    max-width: 600px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.scene-image {
    width: 100%;
    display: block;
}