/* CSS Variables & Global Settings */
:root {
    --primary-color: #D32F2F;
    --primary-dark: #B71C1C;
    --secondary-color: #111111;
    --accent-color: #C62828;
    --text-color: #212121;
    --light-bg: #F9F9F9;
    --white: #ffffff;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    --section-padding: 80px 0;
    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-padding {
    padding: var(--section-padding);
}

.bg-light {
    background-color: var(--light-bg);
}

.bg-dark {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(46, 125, 50, 0.3);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--white);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--text-color);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-footer-back {
    color: #ccc;
    font-size: 0.9rem;
    padding: 8px 16px;
    border: 1px solid #444;
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-footer-back:hover {
    color: var(--white);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateX(-3px);
}

/* Header */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 140px;
    display: flex;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    text-decoration: none;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo a {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.logo span {
    color: var(--primary-color);
}

#main-nav ul li:last-child {
    margin-right: 20px;
}

#main-nav ul {
    display: flex;
    gap: 15px;
    align-items: center;
}

#main-nav a {
    white-space: nowrap;
    font-weight: 600;
    font-size: 0.95rem;
}

#main-nav a:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

/* Hero Section */
.hero-slider {
    height: 90vh;
    min-height: 600px;
    position: relative;
    overflow: hidden;
    margin-top: 140px;
    background-color: #333;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    transition: transform 1s ease-in-out;
}

.slide.active {
    transform: translateX(0);
    z-index: 2;
}

.slide.next {
    transform: translateX(100%);
    z-index: 1;
}

.slide.prev {
    transform: translateX(-100%);
    z-index: 1;
}

.slider-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.indicator {
    width: 40px;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s ease;
    border-radius: 2px;
}

.indicator.active {
    background-color: var(--primary-color);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: var(--white);
    max-width: 800px;
}

.slide h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--white);
}

.slide h1 span {
    color: var(--primary-color);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8);
}

.slide p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Features/USP */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.feature-item .icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-image {
    height: 200px;
    background-color: #ddd;
    background-size: cover;
    background-position: center;
}

#img-spannrahmen { background-image: url('../assets/images/spannrahmen.png'); }
#img-drehrahmen { background-image: url('../assets/images/drehrahmen.png'); }
#img-pendel { background-image: url('../assets/images/pendel.png'); }
#img-lichtschacht { background-image: url('../assets/images/lichtschacht.png'); }
#img-dachfenster { background-image: url('../assets/images/spannrahmen.png'); }
#img-plisseetueren { background-image: url('../assets/images/pendel.png'); }
#img-sonderloesungen { background-image: url('../assets/images/drehrahmen.png'); }

.service-content {
    padding: 25px;
}

.service-content h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
}

/* Sun Protection */
.sonne-overlay {
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.sonne-image {
    height: 400px;
    background-image: url('../assets/images/plissee.png');
    background-size: cover;
    background-position: center;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.gallery-item {
    border-radius: 10px;
    overflow: hidden;
    height: auto;
    background: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background-color: #f9f9f9;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.03);
}

/* About Layout */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/*.about-image img {
    max-height: 500px;
    width: auto;
    height: auto;
    border-radius: 12px; 
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: block;
}

@media screen and (max-width: 768px) {
    .about-image img {
        max-height: 350px;
    }
}*/

.check-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 10px;
}

.check-list li:before {
    content: '✔';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Detail Page Styles */
.detail-hero {
    height: 50vh;
    min-height: 400px;
    position: relative;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    margin-top: 0;
}

.detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

@media (max-width: 900px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
}

.tech-box {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 10px;
    position: sticky;
    top: 100px;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.tech-box h3 {
    margin-bottom: 20px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    display: inline-block;
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h2 {
    color: var(--primary-color);
}

.contact-detail {
    margin-bottom: 25px;
}

.contact-detail strong {
    display: block;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.contact-form {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Footer */
footer {
    background-color: #1a2327;
    color: #888;
    padding: 30px 0;
    font-size: 0.9rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    margin-left: 20px;
}

.footer-links a:hover {
    color: var(--white);
}

/* ==========================================
   RESPONSIVE & MOBILE OPTIMIERUNGEN
   ========================================== */

/* About-Bild Grundeinstellungen (Desktop) */
.about-image {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    width: 100% !important;
    height: auto !important;
    background: none !important; /* Entfernt das alte Hintergrundbild */
}

/* Echtes <img>-Tag formatieren */
.about-image img {
    max-height: 500px !important;
    width: auto !important;
    height: auto !important;
    border-radius: 15px !important; /* Wendet die Ecken direkt auf das Bild an */
    display: block !important;
}

@media screen and (max-width: 768px) {
    .about-image img {
        max-height: 350px !important;
    }
}

@media screen and (max-width: 768px) {

    header {
        position: relative !important;
        height: auto !important;
        padding: 15px 0 !important;
    }

    header .container {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        width: 100% !important;
        padding: 0 10px !important;
        gap: 15px !important;
    }

    .logo-container,
    .logo {
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        width: 100% !important;
        text-align: center !important;
    }

    .logo a {
        font-size: 1.3rem !important;
        display: block !important;
        text-align: center !important;
    }

    .logo img, 
    .logo-container img {
        max-width: 160px !important;
        height: auto !important;
        display: block !important;
        margin: 0 auto !important;
    }

    #main-nav {
        display: block !important;
        width: 100% !important;
        position: static !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 auto !important;
    }

    #main-nav ul {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        width: 100% !important;
        gap: 10px !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    #main-nav ul li {
        width: 100% !important;
        text-align: center !important;
        margin: 0 !important;
    }

    #main-nav ul li:last-child {
        margin-right: 0 !important;
    }

    .mobile-menu-toggle {
        display: none !important;
    }

    .hero-slider {
        margin-top: 0 !important;
        height: auto !important;
        min-height: 480px !important;
    }

    .hero-content {
        padding: 30px 15px !important;
    }

    h1, .slide h1 {
        font-size: 1.6rem !important;
        line-height: 1.3 !important;
    }

    .slide h1 span {
        display: block !important;
        font-size: 0.85em !important;
        color: #ffffff !important;
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.9) !important;
        margin-top: 8px !important;
    }

    .hero-buttons {
        flex-direction: column !important;
        gap: 10px !important;
        margin-bottom: 20px !important;
    }

    .hero-buttons .btn {
        width: 100% !important;
        text-align: center !important;
    }

    .services-grid,
    .features-grid,
    .split-layout,
    .contact-wrapper {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }

    .footer-bottom {
        flex-direction: column !important;
        text-align: center !important;
        gap: 15px !important;
    }

    /* About-Bild Anpassung für Mobilgeräte */
    .about-image {
    height: 500px !important;
    background-size: contain !important;
    background-repeat: no-repeat !important;
    background-position: center !important;
    background-color: transparent !important;
    background-image: url('../assets/images/about.png');
    
    /* Abgerundete Ecken */
    border-radius: 10px;
    overflow: hidden; 
}
}