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

:root {
    --primary-color: #1a365d;
    --secondary-color: #2563eb;
    --accent-color: #f59e0b;
    --text-color: #333;
    --text-light: #666;
    --white: #ffffff;
    --light-bg: #f8f9fa;
    --dark-bg: #1a202c;
}

html {
    scroll-behavior: smooth;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--secondary-color);
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid var(--secondary-color);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 50px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.nav-social {
    display: flex;
    gap: 15px;
}

.nav-social a {
    color: var(--text-light);
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-social a:hover {
    color: var(--secondary-color);
}

.btn-quote {
    background: var(--secondary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-quote:hover {
    background: #1d4ed8;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-bg.jpg') center/cover no-repeat;
    opacity: 0.2;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 20px;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.2;
}

.hero-logos {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
}

.hero-logos img {
    height: 60px;
    filter: brightness(0) invert(1);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* Expertise Section */
.expertise {
    padding: 100px 0;
    background: var(--white);
}

.section-subtitle {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-description {
    text-align: center;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 60px;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.expertise-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: 10px;
    background: var(--white);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.expertise-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.expertise-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #3b82f6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.expertise-icon i {
    font-size: 32px;
    color: var(--white);
}

.expertise-card h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.expertise-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text > p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.about-features {
    margin-bottom: 30px;
}

.feature {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    font-size: 24px;
    color: var(--white);
}

.feature-text h5 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.feature-text p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.about-image img {
    border-radius: 10px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

/* NESDA Section */
.nesda {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #3b82f6 100%);
    text-align: center;
}

.nesda h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 30px;
}

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

.nesda .btn-primary:hover {
    background: #f0f0f0;
}

/* Clients Section */
.clients {
    padding: 80px 0;
    background: var(--white);
}

.clients h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 50px;
}

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

.client-logo {
    flex: 0 0 auto;
}

.client-logo img {
    height: 80px;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.client-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--dark-bg);
    text-align: center;
}

.cta-subtitle {
    color: var(--accent-color);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 15px;
}

.cta h3 {
    color: var(--white);
    font-size: 2.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--light-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 30px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    background: var(--white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-card h5 {
    color: var(--primary-color);
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--text-light);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.contact-form .btn-primary {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    padding: 80px 0 30px;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-col p {
    color: #a0aec0;
    font-size: 0.95rem;
}

.footer-col h5 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: #a0aec0;
    transition: color 0.3s ease;
}

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

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #a0aec0;
    font-size: 0.9rem;
}

/* Cookie Notice */
.cookie-notice {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark-bg);
    color: var(--white);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    z-index: 1001;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-notice.show {
    transform: translateY(0);
}

.cookie-notice p {
    font-size: 0.9rem;
    color: #a0aec0;
}

.btn-accept {
    background: var(--secondary-color);
    color: var(--white);
    padding: 10px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.3s ease;
}

.btn-accept:hover {
    background: #1d4ed8;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .navbar {
        padding: 15px 30px;
    }
    
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-social,
    .btn-quote {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-logos {
        flex-direction: column;
        gap: 20px;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .cookie-notice {
        flex-direction: column;
        text-align: center;
    }
    
    .nesda h2 {
        font-size: 1.8rem;
    }
    
    .cta h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 15px 20px;
    }
    
    .hero-content h1 {
        font-size: 1.6rem;
    }
    
    .section-subtitle {
        font-size: 1.5rem;
    }
    
    .about-text h3 {
        font-size: 1.5rem;
    }
    
    .contact-info h3 {
        font-size: 1.5rem;
    }
    
    .clients-grid {
        gap: 30px;
    }
    
    .client-logo img {
        height: 50px;
    }
}

/* Mobile Navigation */
.nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}