/* ==================== GLOBAL STYLES ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1B75BC;
    --primary-dark: #0D5A99;
    --secondary-color: #3D92D5;
    --accent-color: #22c55e;
    --text-dark: #1f2937;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

/* ==================== LANGUAGE TOGGLE ==================== */
.language-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 8px;
    background: var(--bg-white);
    padding: 6px;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
}

.lang-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-light);
    font-weight: 600;
    font-size: 14px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

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

.lang-btn:hover:not(.active) {
    background: var(--bg-light);
}

.lang-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    position: sticky;
    top: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-md);
    z-index: 999;
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.brand-icon {
    font-size: 2rem;
}

.brand-logo {
    height: 60px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
    filter: brightness(1.05);
    padding: 5px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.brand-logo:hover {
    transform: scale(1.08);
    filter: brightness(1.1);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-menu a.active {
    color: var(--primary-color);
    font-weight: 600;
}

.nav-menu a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
    border-radius: 4px;
}

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

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(27, 117, 188, 0.92) 0%, rgba(13, 90, 153, 0.92) 100%);
    color: var(--bg-white);
    text-align: center;
    overflow: hidden;
    padding: var(--spacing-2xl) var(--spacing-sm);
}

/* Background image */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('background-img.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.4;
    z-index: 0;
}

/* Decorative pattern overlay */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.05"/></svg>');
    animation: float 20s linear infinite;
    z-index: 1;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-100px);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-description {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    font-weight: 400;
    opacity: 0.95;
    letter-spacing: 0.3px;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s both;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: 0.5px;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.cta-primary {
    background: var(--bg-white);
    color: var(--primary-color);
    box-shadow: var(--shadow-xl);
    animation: pulse 2s ease-in-out infinite;
}

.cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 25px 30px -5px rgba(0, 0, 0, 0.3);
    animation: none;
}

.cta-secondary {
    background: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
    box-shadow: none;
}

.cta-secondary:hover {
    background: var(--bg-white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.cta-button:focus {
    outline: 3px solid rgba(255, 255, 255, 0.8);
    outline-offset: 4px;
}

.cta-primary:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 4px;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 0 0 0 rgba(255, 255, 255, 0.7);
    }
    50% {
        box-shadow: 0 25px 30px -5px rgba(0, 0, 0, 0.2), 0 0 0 10px rgba(255, 255, 255, 0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== SECTION STYLES ==================== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-dark);
    line-height: 1.3;
}

/* ==================== SERVICES SECTION ==================== */
.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.service-card h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    font-weight: 600;
    line-height: 1.4;
}

.service-card p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 1rem;
}

/* ==================== WHY US SECTION ==================== */
.why-us {
    background: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    padding: var(--spacing-xl);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    background: var(--bg-white);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    flex-shrink: 0;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    font-weight: 600;
    line-height: 1.4;
}

.feature-card p {
    color: var(--text-medium);
    line-height: 1.8;
    font-size: 1rem;
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
}

.contact .section-title {
    color: var(--bg-white);
}

.contact-intro {
    text-align: center;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    line-height: 1.7;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1;
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
    font-weight: 600;
}

.contact-card a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--transition);
    display: inline-block;
}

.contact-card a:hover {
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.contact-card a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 4px;
    border-radius: 4px;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--text-dark);
    color: var(--bg-white);
    padding: 3rem 0 1.5rem;
}

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-tagline {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.social-links a:focus {
    outline: 2px solid var(--bg-white);
    outline-offset: 4px;
}

.footer-copyright {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.875rem;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 1024px) {
    :root {
        --spacing-3xl: 4rem;
        --spacing-2xl: 3rem;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.375rem;
    }

    .section-title {
        font-size: 2.25rem;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2rem;
        --spacing-xl: 2rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        gap: var(--spacing-sm);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .hero {
        min-height: 75vh;
        padding: var(--spacing-2xl) var(--spacing-sm);
    }

    .hero-content {
        padding: 0;
    }

    .hero-title {
        font-size: 2.25rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-subtitle {
        font-size: 1.25rem;
        margin-bottom: var(--spacing-sm);
    }

    .hero-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    .cta-button {
        width: 100%;
        padding: 1rem 2rem;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-xl);
    }

    .services-grid,
    .features-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .service-card,
    .feature-card,
    .contact-card {
        padding: var(--spacing-lg);
    }

    .language-toggle {
        top: 95px;
        right: 20px;
        z-index: 1001;
    }

    .brand-logo {
        height: 50px;
    }

    .footer-brand .brand-logo {
        height: 40px;
    }

    .contact-intro {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-3xl: 2.5rem;
        --spacing-2xl: 1.5rem;
        --spacing-xl: 1.5rem;
        --spacing-lg: 1.25rem;
    }

    .hero {
        min-height: 65vh;
        padding: var(--spacing-xl) var(--spacing-sm);
    }

    .hero-title {
        font-size: 1.875rem;
        margin-bottom: var(--spacing-xs);
    }

    .hero-subtitle {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-xs);
    }

    .hero-description {
        font-size: 0.9375rem;
        margin-bottom: var(--spacing-md);
    }

    .hero-buttons {
        max-width: 100%;
    }

    .cta-button {
        padding: 0.875rem 1.75rem;
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .service-card,
    .feature-card,
    .contact-card {
        padding: var(--spacing-md);
    }

    .language-toggle {
        top: 90px;
        right: 15px;
        padding: 4px;
    }

    .lang-btn {
        padding: 6px 12px;
        font-size: 13px;
    }

    .contact-intro {
        font-size: 1rem;
    }
}

/* ==================== SCROLL ANIMATIONS ==================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}