/* Variables */
:root {
    --primary-color: #4CAF50; /* Light green */
    --secondary-color: #64B5F6; /* Light blue */
    --text-color: #333;
    --background-color: #fff;
    --light-gray: #f5f5f5;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --dropdown-shadow: 0 4px 6px rgba(0,0,0,0.1);
    --overlay-dark: rgba(0, 0, 0, 0.7);
    --overlay-light: rgba(255, 255, 255, 0.9);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Account for fixed header */
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

/* Navigation */
.navbar {
    background: linear-gradient(hwb(120 8% 91% / 0.8), hwb(0 0% 100% / 0.8)), url('images/nkhayatcs-logo.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.5rem;
    margin: 0;
    color: var(--background-color);
}

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

/* Dropdown Menu Styles */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-menu > li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: var(--background-color);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.dropdown-trigger i {
    font-size: 0.8rem;
    transition: var(--transition);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--overlay-light);
    backdrop-filter: blur(10px);
    min-width: 200px;
    border-radius: var(--border-radius);
    box-shadow: var(--dropdown-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: 0.5rem 0;
    list-style: none;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    padding: 0.75rem 1.5rem;
    display: block;
    color: var(--text-color);
    transition: var(--transition);
}

.dropdown-menu li a:hover {
    background-color: rgba(76, 175, 80, 0.1);
    color: var(--primary-color);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, rgba(100, 181, 246, 0.1) 0%, rgba(76, 175, 80, 0.1) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
}

.hero-icon dev{
    width: 100px;
}

.hero-icon img {
    height: auto;
    max-width: 100px;
    max-height: 100px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

/* Services Section */
.services {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    position: relative;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
}

.service-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    margin-top: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.service-link:hover {
    gap: 1rem;
}

/* About Section */
.about {
    padding: 80px 0;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature {
    text-align: center;
    padding: 30px;
    transition: var(--transition);
}

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

.feature i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-form {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.1);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-section {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

/* Footer */
.footer {
    background: linear-gradient(rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.9)), url('images/nkhayatcs-logo.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    padding: 60px 0 20px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.footer-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo h2 {
    text-align: left;
    color: white;
    font-size: 1.8rem;
}

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

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    padding: 5px 0;
}

.footer-links a:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.imprint-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight:bold;
    font-size: smaller;
    transition: var(--transition);
    display: inline;
    padding: 5px 5px 5px 5px;
}

.social-icons {
    display: flex;
    gap: 1.5rem;
}

.social-icons a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.5rem;
    transition: var(--transition);
    padding: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icons a:hover {
    color: white;
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--overlay-dark);
        backdrop-filter: blur(10px);
        padding: 20px;
        flex-direction: column;
        text-align: left;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: 1rem;
        display: none;
        background: rgba(0, 0, 0, 0.2);
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .dropdown-trigger i {
        transform: rotate(0deg);
    }

    .dropdown.active .dropdown-trigger i {
        transform: rotate(180deg);
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        order: -1;
    }

    .cta-buttons {
        justify-content: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

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

    .footer-logo h2 {
        text-align: center;
    }

    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .dropdown-menu {
        min-width: 100%;
    }
}

/* Case Studies Section */
.case-studies {
    padding: 80px 0;
    background-color: var(--background-color);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-study-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    position: relative;
    border: 1px solid var(--light-gray);
}

.case-study-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.case-study-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.case-study-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
}

.case-study-card p {
    color: #666;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.case-study-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    background-color: rgba(76, 175, 80, 0.1);
}

.case-study-link:hover {
    gap: 1rem;
    background-color: rgba(76, 175, 80, 0.2);
}

/* Update responsive styles for case studies */
@media (max-width: 768px) {
    .case-studies-grid {
        grid-template-columns: 1fr;
    }

    .case-study-card {
        max-width: 500px;
        margin: 0 auto;
    }
}

/* Form States */
.contact-form button[type="submit"] {
    position: relative;
    min-width: 120px;
}

.contact-form button[type="submit"]:disabled {
    opacity: 0.8;
    cursor: not-allowed;
}

.contact-form .fa-spinner {
    margin-right: 8px;
}

.success-message,
.error-message {
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    text-align: center;
    animation: fadeIn 0.3s ease-in-out;
}

.success-message {
    background-color: rgba(76, 175, 80, 0.1);
    border: 1px solid #4CAF50;
    color: #2E7D32;
}

.error-message {
    background-color: rgba(244, 67, 54, 0.1);
    border: 1px solid #F44336;
    color: #C62828;
}

.success-message i,
.error-message i {
    font-size: 24px;
    margin-bottom: 10px;
}

.success-message p,
.error-message p {
    margin: 0;
    font-size: 16px;
}

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