/* Define global color and style variables */
:root {
    /* Core Colors */
    --primary-color: #000000; /* Black (headings, logo, links) */
    --secondary-color: #007bff; /* Lighter action blue (icons, gradient) */
    --white-color: #ffffff; /* White (backgrounds, text on dark, buttons) */
    /* Backgrounds */
    --dark-background: #343a40; /* Dark grey (footer) */
    --button-hover-bg: #f0f0f0; /* Off-white button hover */
    /* Text Colors */
    --text-color-dark: #333; /* Main dark text */
    --text-color-medium: #555; /* Medium grey text (paragraphs) */
    --text-color-light: #f8f9fa; /* Light text (on dark backgrounds) */
    --text-color-subtle: #666; /* Subtle grey text (contact note) */
    --footer-link-color: #adb5bd; /* Specific color for footer links */
    /* Borders & Shadows */
    --border-color: #eaeaea; /* Light border color */
    --box-shadow-light: rgba(0, 0, 0, 0.05); /* Subtle shadow */
    --box-shadow-medium: rgba(0, 0, 0, 0.1); /* Slightly stronger shadow */
    /* Placeholders */
    --placeholder-text-color: #888; /* Placeholder text */
    --placeholder-bg-color: #e0e0e0; /* Placeholder background */
}

/* Initial state for elements that will animate */
.animate-on-scroll {
    opacity: 0; /* Start fully transparent */
    transform: translateY(200px); /* Start 50px below final position */
    transition: opacity 0.6s ease-out, transform 0.6s ease-out; /* Smooth transition for opacity and position */
    will-change: opacity, transform; /* Hint to browser for optimization */
}

    /* Final state - added by JavaScript when element is visible */
    .animate-on-scroll.is-visible {
        opacity: 1; /* Fade in to full opacity */
        transform: translateY(0); /* Move up to final position */
    }

/* Basic Reset & Defaults */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

h3 {
    font-weight: 400;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 70px; /* Adjust based on header height */
}

body {
    font-family: 'Questrial', sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-color-dark);
    background-color: var(--white-color);
}

/* Container */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
#header {
    background-color: var(--white-color);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 5px var(--box-shadow-light);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: unset;
    margin-left: 3em;
    margin-right: 3em;
}

.logo {
    font-size: 1.2em;
    font-weight: lighter;
    color: var(--primary-color);
    text-decoration: none;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

h3 {
    font-size: 2.2em;
}

nav a {
    text-decoration: none;
    color: var(--text-color-dark);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: color 0.3s ease, background-color 0.3s ease;
}

    nav a:hover, nav a.active {
        color: var(--primary-color);
        /* background-color: var(--light-background); Optional subtle background */
    }



/* Hero Section */
#start {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 0;
    overflow: hidden;
    margin-bottom: 50px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Gradient using variables */
    /*background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));*/
    /* OR Image Placeholder */
    background-image: url('images/scene-laptop.avif');
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.hero-fade-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white-color); /* White background */
    opacity: 0; /* Start fully transparent */
    z-index: 2; /* Position above background */
    pointer-events: none; /* Allow clicks/interaction with content below */
    /* Optional: Add a slight transition for smoothness if JS updates lag */
    /* transition: opacity 0.05s linear; */
}

.hero-content {
    position: relative;
    font-size: 2.2em;
    padding-bottom: 5em;
    z-index: 3;
    color: var(--white-color);
}

#start h1 {
    font-size: 2.2em;
    line-height: 1.2em;
    font-weight: normal;
    opacity: 0.9;
    margin-bottom: 5px;
}

#start h2 {
    font-size: 2.8em;
    margin-bottom: 15px;
    font-weight: bold;
}

#start p {
    font-size: 1.2em;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background-color: var(--white-color);
    color: var(--primary-color);
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-size: 1em;
    font-weight: bold;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 2px 4px var(--box-shadow-medium);
}

    .cta-button:hover {
        background-color: var(--button-hover-bg);
        color: var(--primary-color); /* Keep primary color or define a darker one */
        transform: translateY(-2px);
    }

/* Content Sections */
.content-section {
    padding: 70px 0;
    margin-bottom: 50px;
}

    .content-section h2 {
        text-align: center;
        font-size: 2.2em;
        margin-bottom: 50px;
        color: var(--primary-color);
    }


/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}

.service-item {
    background-color: var(--white-color);
    padding: 30px 25px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 3px 10px var(--box-shadow-light);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    .service-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 15px var(--box-shadow-medium);
    }

    .service-item .icon-placeholder {
        font-size: 2.5em;
        color: var(--secondary-color);
        margin-bottom: 20px;
    }

    .service-item h3 {
        font-size: 1.4em;
        color: var(--text-color-dark);
        margin-bottom: 10px;
    }

    .service-item p {
        font-size: 0.95em;
        color: var(--text-color-medium);
    }

/* About Us Section */
.about-layout {
    display: flex;
    align-items: center;
    gap: 40px;
}


.about-image {
    max-width: 100%;
    margin-bottom: 0;
    flex: 1;
}
.about-image img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}


.about-text {
    flex: 1;
    text-align: left;
}

    .about-text h3 {
        font-size: 2.2em;
        color: var(--primary-color);
        margin-bottom: 15px;
    }

    .about-text p {
        margin-bottom: 15px;
        color: var(--text-color-dark);
    }

.service-layout {
    display: flex;
    align-items: center;
    gap: 40px;
}

.service-text {
    flex: 1;
    text-align: left;
}

    .service-text h3 {
        font-size: 2.2em;
        color: var(--primary-color);
        margin-bottom: 15px;
        margin-left: 50px;
    }

    .service-text h4 {
        margin-bottom: 15px;
        margin-top: 3px;
        margin-left: 50px;
    }

    .service-text p {
        margin-bottom: 15px;
        color: var(--text-color-dark);
        margin-left: 50px;
    }

.service-image {
    flex: 1;
}

    .service-image img {
        width: 100%;
        height: 600px;
        object-fit: cover;
        object-position: center;
    }

#projekte h3{
    text-align:center;
}

.projekt-row {
    display: flex;
    gap: 3em;
    margin-bottom: 3em;
}

.projekt-title {
    flex: 3;
    display: flex;
    align-items: center;
    gap: 1em;
}

.projekt-icon {
    display: inline-block; /* Or 'block' if it shouldn't flow with text */
    width: 64px; /* Adjust size as needed, 'em' scales with text */
    height: 64px; /* Keep aspect ratio or set specific pixels */
    background-image: url('assets/icons/project.svg'); /* Correct path! */
    background-repeat: no-repeat; /* Don't tile the icon */
    background-size: contain; /* Scale the icon to fit the element */
    background-position: center; /* Center the icon */
    vertical-align: middle; /* Aligns inline-block elements nicely with text */
}

.projekt-info {
    flex: 3;
} 

.projekt-details{
    flex:5;
}


/* Logos Section */
#logos {
    padding: 40px 0;
}

.logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 50px;
}

.logo-placeholder {
    color: var(--placeholder-text-color); /* Adjusted from #aaa */
    font-style: italic;
    padding: 10px;
}

.impressum-container {
    text-align: left;
    
}
.impressum-container h1{
    font-size: 30px;
    margin-bottom: 10px;
    margin-bottom: 5px;
}
.impressum-container h2{
    font-size: 20px;
    margin-bottom: 5px;
    margin-top: 10px;
}
/* Contact Section */
.contact-container {
    text-align: center;
    max-width: 700px;
}

#kontakt a {
    color: var(--primary-color);
    font-weight: 500;
}

    #kontakt a:hover {
        text-decoration: underline;
    }

#kontakt p {
    margin-bottom: 15px;
    font-size: 1.1em;
}

    /* Contact form note styling */
    #kontakt p em {
        color: var(--text-color-subtle); /* Replaced #666 */
    }


/* Footer */
footer {
    background-color: var(--dark-background);
    color: var(--text-color-light);
    text-align: center;
    padding: 30px 0;
    margin-top: 50px;
}

    footer p {
        margin-bottom: 8px;
        font-size: 0.9em;
    }

    footer a {
        color: var(--footer-link-color);
        text-decoration: none;
        margin: 0 8px;
        transition: color 0.3s ease;
    }

        footer a:hover {
            color: var(--white-color);
            text-decoration: underline;
        }

/* --- Basic Responsiveness --- */

@media (max-width: 992px) {
    .about-layout {
        flex-direction: column;
        text-align: center; 
    }

    .about-text {
        text-align: center;
    }
}


@media (max-width: 768px) {
    html {
        scroll-padding-top: 60px;
    }

    #header {
        padding: 10px 0;
    }
    .hero-content {
        font-size: 1.5em;
    }

    .header-container {
        flex-direction: column;
        gap: 10px;
    }

    nav ul {
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
        padding-top: 5px;
    }

    #start {
        min-height: 60vh;
    }

        #start h2 {
            font-size: 2.2em;
        }

        #start p {
            font-size: 1.1em;
        }

    .content-section h2 {
        font-size: 1.9em;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .logos-grid {
        gap: 30px;
    }

    .service-layout {
        flex-direction: column;
    }

    .service-text h3,
    .service-text h4,
    .service-text p {
        margin-left: 20px;
    }

    .projekt-row {
        flex-direction: column;
        margin-left: 2em;
        margin-right: 2em;
        gap: 1em;
    }

}


    .content-section h2 {
        font-size: 1.7em;
        margin-bottom: 30px;
    }

.service-item h3 {
    font-size: 1.2em;
}

.about-text h3 {
    font-size: 2.2em;
}

#kontakt p {
    font-size: 1em;
}

/* Survey Section */
.api-config {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.api-config input[type="text"] {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 250px;
}

.api-config button {
    padding: 8px 15px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.api-config button:hover {
    background-color: #45a049;
}


.loading-message {
    grid-column: 1 / -1; /* Span across all columns */
    text-align: center;
    font-size: 1.1em;
    color: #666;
}

.survey-tile {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 15px;
    cursor: pointer;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    border-left: 5px solid #5cb85c;
    overflow: hidden; /* Ensure content stays within */
}

.survey-tile:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.survey-tile.expanded {
    border-left-color: #337ab7; /* Different color when expanded */
    cursor: default;
}

.survey-tile h2 {
    margin-top: 0;
    color: #333;
    font-size: 1.3em;
}

.survey-tile p {
    font-size: 0.9em;
    color: #666;
    line-height: 1.4;
}

.survey-answers {
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #eee;
    max-height: 0; /* Initially hidden */
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.survey-tile.expanded .survey-answers {
    max-height: 500px; /* Adjust as needed to show content */
}

.survey-answers ul {
    list-style: none;
    padding: 0;
}

.survey-answers li {
    background-color: #f9f9f9;
    margin-bottom: 8px;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #eee;
    font-size: 0.85em;
}

.survey-answers li strong {
    color: #007bff;
}

/* Basic loader for when answers are fetching */
.answers-loading {
    text-align: center;
    color: #888;
    font-style: italic;
    margin-top: 10px;
}