/* Global Styles */
:root {
    --primary-color: #0e8b34;
    --secondary-color: #ffb600;
    --tertiary-color: #0d5620;
    --accent-color: #4caf50;
    --light-green: #90EE90;
    --dark-color: #333;
    --light-color: #f4f4f4;
    --danger-color: #dc3545;
    --success-color: #28a745;
    --max-width: 1200px;
}

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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

a:hover {
    color: var(--tertiary-color);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

/* Button Styles */
.btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    text-align: center;
}

.btn:hover {
    background: var(--tertiary-color);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    margin-left: 1rem;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Header */
.main-header {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 0.8rem 0;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.main-header.scrolled {
    padding: 0.5rem 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.15);
}

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

.logo-container {
    display: flex;
    align-items: center;
}

.logo-link {
    display: block;
    transition: transform 0.3s ease;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo {
    height: 60px;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    color: var(--dark-color);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

nav ul li a.active,
nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

nav ul li a.active::after,
nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }
    
    nav {
        width: 100%;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav ul li {
        margin: 0.5rem 0;
    }
}

/* Hero Section */
.hero-section {
    position: relative;
    color: white;
    padding: 8rem 0;
    overflow: hidden;
    background: linear-gradient(45deg, var(--tertiary-color), var(--primary-color), var(--light-green));
}

.animated-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(14, 139, 52, 0.1) 0%,
        rgba(14, 139, 52, 0.2) 25%,
        rgba(14, 139, 52, 0.1) 50%,
        rgba(14, 139, 52, 0.2) 75%,
        rgba(14, 139, 52, 0.1) 100%
    );
    background-size: 400% 400%;
    animation: gradient 8s ease infinite;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.hero-content {
    max-width: 700px;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-content h2 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 400;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    animation: fadeInUp 0.8s ease 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Electricity Animation */
.electricity-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.1;
    background: 
        linear-gradient(45deg, transparent 45%, rgba(255, 255, 255, 0.1) 50%, transparent 55%),
        linear-gradient(-45deg, transparent 45%, rgba(255, 255, 255, 0.1) 50%, transparent 55%);
    background-size: 200% 200%;
    animation: electricity 3s ease-in-out infinite;
}

@keyframes electricity {
    0% {
        background-position: 0% 0%;
    }
    50% {
        background-position: 100% 100%;
    }
    100% {
        background-position: 0% 0%;
    }
}

/* Intro Section */
.intro-section {
    padding: 5rem 0;
    background: linear-gradient(to bottom, #fff, #f9f9f9);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.intro-text h2 {
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.intro-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--primary-color);
}

.intro-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.intro-text .btn {
    margin-top: 1rem;
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    background: white;
    padding: 1.5rem;
    border-radius: 5px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
    border-top: 3px solid var(--primary-color);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-item h3 {
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.feature-item p {
    font-size: 0.95rem;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--tertiary-color), var(--primary-color));
    color: white;
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
footer {
    background: linear-gradient(to right, var(--tertiary-color), var(--primary-color), var(--light-green));
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-info p {
    margin-top: 1rem;
}

.footer-logo {
    height: 45px;
    filter: brightness(0) invert(1);
    transition: transform 0.3s ease;
}

.footer-info a:hover .footer-logo {
    transform: scale(1.05);
}

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--secondary-color);
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links ul li a {
    color: #ccc;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact p {
    margin-bottom: 0.75rem;
}

.footer-contact a {
    color: #ccc;
}

.footer-contact a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.footer-legal a {
    color: #ccc;
    margin-left: 1.5rem;
}

.footer-legal a:hover {
    color: white;
}

/* WebBrücke Solutions Button */
.webbruecke-button {
    display: inline-flex;
    align-items: center;
    padding: 5px 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: #ccc;
    font-size: 0.8rem;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-left: 15px;
}

.webbruecke-button:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.webbruecke-button::before {
    content: '🌐';
    margin-right: 5px;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .webbruecke-button {
        display: block;
        margin: 10px 0 0 0;
        text-align: center;
    }
}

/* WebBrücke Solutions Text */
.webbruecke-text {
    font-size: 0.8rem;
    color: #ccc;
    margin-left: 15px;
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    padding: 5px 10px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.webbruecke-text:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.webbruecke-text::before {
    content: '🌐';
    margin-right: 5px;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .webbruecke-text {
        display: block;
        margin: 10px 0 0 0;
        text-align: center;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
    }
    
    .logo-container {
        margin-bottom: 1rem;
    }
    
    nav ul {
        margin-top: 0.5rem;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 0.5rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        margin: 0.5rem 0;
    }
    
    .btn-secondary {
        margin-left: 0;
    }
    
    .intro-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-features {
        margin-top: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        margin-top: 1rem;
    }
    
    .footer-legal a {
        margin: 0 0.75rem;
    }
}

@media (max-width: 500px) {
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0.5rem;
    }
    
    .hero-section {
        padding: 4rem 0;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content h2 {
        font-size: 1.1rem;
    }
    
    .footer-logo {
        height: 35px;
    }
    
    section {
        padding: 3rem 0 !important;
    }
}

/* Lightning Effect */
.lightning {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.lightning-bolt {
    position: absolute;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 15px 3px rgba(255, 182, 0, 0.9);
    animation: lightningFlash 3s linear infinite;
    opacity: 0;
}

@keyframes lightningFlash {
    0%, 85%, 100% {
        opacity: 0;
    }
    86%, 88% {
        opacity: 1;
    }
    89%, 95% {
        opacity: 0;
    }
    96%, 98% {
        opacity: 1;
    }
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 20%, rgba(255, 182, 0, 0.2) 0%, transparent 50%);
    z-index: 1;
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.2;
    }
    50% {
        opacity: 0.4;
    }
}

/* Page header */
.page-header {
    background: linear-gradient(45deg, var(--tertiary-color), var(--primary-color));
    color: white;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background-image: url('../images/48c80bf2-fcc1-49f8-a0b3-1e969bc9a667-removebg-preview.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: bottom right;
    opacity: 0.15;
    filter: brightness(0) invert(1);
    z-index: 1;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.header-logo {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.15;
    z-index: 1;
}

.header-background-logo {
    height: 200px;
    width: auto;
    filter: brightness(0) invert(1);
}

@media (max-width: 768px) {
    .header-background-logo {
        height: 150px;
    }
    
    .header-logo {
        right: -30px;
    }
}

.page-header h1 {
    position: relative;
    z-index: 2;
    animation: fadeInUp 0.8s ease;
}

.page-content {
    padding: 4rem 0;
    position: relative;
    z-index: 1;
}

.page-content::before {
    display: none;
}

/* Services Page */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 5px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-top: 3px solid var(--primary-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card h3 {
    margin-bottom: 1rem;
}

/* About Page */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-member {
    background: white;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.team-info {
    padding: 1.5rem;
}

.team-info h3 {
    margin-bottom: 0.5rem;
}

.team-info span {
    color: var(--primary-color);
    font-weight: 500;
}

/* References Page */
.reference-grid {
    display: none;
}

.project-gallery {
    display: none;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2 {
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

.contact-info h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--primary-color);
}

.contact-details {
    margin-top: 2rem;
}

.contact-item {
    margin-bottom: 1.5rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.contact-form h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(14, 139, 52, 0.2);
}

/* Animated Background Logo */
.background-logo {
    display: none;
}

/* Contact Form with Background Logo */
.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.contact-form::before {
    display: none;
}

/* About Section with Background Logo */
.about-content {
    position: relative;
    z-index: 1;
}

.about-content::before {
    display: none;
}

/* Form Messages */
#form-message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    font-weight: 500;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Disabled button state */
button[type="submit"]:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary-color);
    color: white;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.back-to-top:hover {
    background: var(--tertiary-color);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

.back-to-top:active {
    transform: translateY(-1px) scale(0.98);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top::before {
    content: '↑';
    font-size: 20px;
    font-weight: bold;
    line-height: 1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
    
    .back-to-top::before {
        font-size: 18px;
    }
}