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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Header */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 0.5rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo h2 {
    color: #2c5aa0;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #2c5aa0;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2c5aa0 0%, #1e3d72 100%);
    color: white;
    padding: 180px 0 100px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: #ff6b35;
    color: white;
}

.btn-primary:hover {
    background: #e55a2b;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: white;
    color: #2c5aa0;
}

/* Services */
.services {
    padding: 80px 0;
    background: #f8f9fa;
}

.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c5aa0;
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.service-card i {
    font-size: 3rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c5aa0;
}

/* Portfolio */
.portfolio {
    padding: 80px 0;
}

.portfolio h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c5aa0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: #2c5aa0;
    color: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.portfolio-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

/* Systems */
.systems {
    padding: 80px 0;
    background: #f8f9fa;
}

.systems h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c5aa0;
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.system-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.system-card i {
    font-size: 3rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.system-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #2c5aa0;
}

.system-access {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

.system-access p {
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.btn-system {
    background: #2c5aa0;
    color: white;
    padding: 10px 25px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-system:hover {
    background: #1e3d72;
    transform: translateY(-2px);
}

/* Differentials */
.differentials {
    padding: 80px 0;
}

.differentials h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c5aa0;
}

.diff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.diff-item {
    text-align: center;
    padding: 1.5rem;
}

.diff-item i {
    font-size: 2.5rem;
    color: #ff6b35;
    margin-bottom: 1rem;
}

.diff-item h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #2c5aa0;
}

/* Contact */
.contact {
    padding: 80px 0;
    background: #f8f9fa;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c5aa0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #2c5aa0;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.contact-item i {
    font-size: 1.2rem;
    color: #ff6b35;
    margin-right: 1rem;
    width: 20px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #2c5aa0;
}

/* Footer */
.footer {
    background: #2c5aa0;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #ff6b35;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Chatbot */
.chat-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: #25d366;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: all 0.3s;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.chat-button:hover {
    background: #128c7e;
    transform: scale(1.1);
}

.chatbot {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 350px;
    height: 450px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    display: none;
    flex-direction: column;
    z-index: 1001;
}

.chat-header {
    background: #2c5aa0;
    color: white;
    padding: 15px;
    border-radius: 10px 10px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header button {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.chat-messages {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.message {
    max-width: 80%;
    padding: 10px;
    border-radius: 10px;
    word-wrap: break-word;
}

.bot-message {
    background: #f0f0f0;
    align-self: flex-start;
}

.user-message {
    background: #2c5aa0;
    color: white;
    align-self: flex-end;
}

.chat-input {
    display: flex;
    padding: 15px;
    border-top: 1px solid #eee;
}

.chat-input input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-right: 10px;
}

.chat-input button {
    background: #2c5aa0;
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .chatbot {
        width: calc(100% - 40px);
        height: 400px;
    }
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .systems-grid {
        grid-template-columns: 1fr;
    }
}