:root {
    --primary-color: #1e3a8a; /* Deep Trust Blue */
    --secondary-color: #3b82f6; /* Modern Blue */
    --accent-color: #0ea5e9; /* Sky Blue for highlights */
    --bg-light: #f8fafc; /* Very light slate background */
    --text-main: #1e293b; /* Slate 800 for readability */
    --text-muted: #64748b; /* Slate 500 for secondary info */
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --border-color: #e2e8f0;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

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

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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



/* ... existing header ... */

.service-card {
    background: rgba(255, 255, 255, 0.05);
    /* Lighter glass for new blue */
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 15px;
    transition: var(--transition);
    border: 1px solid rgba(0, 212, 255, 0.1);
    /* Light blue border */
    box-shadow: 0 10px 30px -15px rgba(0, 0, 0, 0.5);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 30px -15px rgba(0, 212, 255, 0.2);
    /* Light blue glow */
    background: rgba(255, 255, 255, 0.08);
}

/* Header */
header.main-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: #ffffff;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-heading);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--secondary-color);
    transform: translateY(-2px);
}

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

.lang-switch {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-switch a {
    font-size: 0.9rem;
    opacity: 0.7;
}

.lang-switch a.active {
    opacity: 1;
    color: var(--accent-color);
    font-weight: bold;
}

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(248, 250, 252, 0.9), rgba(248, 250, 252, 0.8)), 
                url('../img/global-expansion.png');
    background-size: cover;
    background-position: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-content h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    color: var(--primary-color);
    letter-spacing: -2px;
}

.hero-content p {
    font-size: 1.4rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

/* Services Section */
#services {
    padding: 10rem 0;
    background: var(--white);
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 6rem;
}

.section-title h2 {
    font-size: 3rem;
    color: var(--primary-color);
    letter-spacing: -1px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-top: 1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
}

.service-card {
    background: var(--bg-light);
    padding: 3rem;
    border-radius: 24px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.service-card:hover {
    transform: translateY(-10px);
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.service-card h3 {
    font-size: 1.6rem;
    color: var(--primary-color);
    margin: 0;
}

.service-card p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
    margin: 0;
}

/* Advantages Section */
#advantages {
    padding: 10rem 0;
    background: linear-gradient(rgba(248, 250, 252, 0.95), rgba(248, 250, 252, 0.95)), 
                url('../img/services-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem;
}

.advantage-item {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 0;
    transition: var(--transition);
}

.advantage-icon {
    font-size: 2.5rem;
    color: var(--secondary-color);
    background: var(--white);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}

.advantage-text h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.advantage-text p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

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

.advantage-item:hover .advantage-icon {
    background: var(--primary-color);
    color: var(--white);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
    /* Start hidden */
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    text-decoration: none;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: scale(1.1);
    color: #FFF;
}

.whatsapp-float i {
    margin-top: 2px;
    /* Visual adjustment */
}

/* Team Image */
.team-image {
    width: 100%;
    max-width: 400px;
    /* Limit width */
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    margin-bottom: 2rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* Contact Section */
#contact {
    padding: 10rem 0;
    background: var(--white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    background: var(--bg-light);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.contact-item-text h4 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--primary-color);
}

.contact-item-text p {
    margin: 0.2rem 0 0;
    color: var(--text-muted);
}

/* Contact Form */
.contact-form {
    background: var(--bg-light);
    padding: 3.5rem;
    border-radius: 32px;
    border: 1px solid var(--border-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.form-control {
    width: 100%;
    padding: 1rem 1.2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--white);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

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

/* Footer */
footer {
    padding: 5rem 0;
    background: var(--primary-color);
    color: var(--white);
    text-align: center;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 2rem;
    display: block;
    color: var(--white);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
        /* Mobile menu implementation needed if requested, for now simple hide */
    }

/* Mobile Responsive */
@media (max-width: 992px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        border-bottom: 2px solid var(--primary-color);
        text-align: center;
        gap: 1.5rem;
    }

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

    .menu-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

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

    .col-md-7, .col-md-5, .col-md-6 {
        width: 100% !important;
        padding-left: 15px !important;
        margin-bottom: 2rem;
    }

    #about .row {
        flex-direction: column-reverse;
    }

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

    section {
        padding: 5rem 0 !important;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .lang-switch {
        display: none; /* Hide in mobile header to save space */
    }
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

[class*="col-"] {
    position: relative;
    padding-right: 15px;
    padding-left: 15px;
}

.col-md-5 { width: 41.66666667%; }
.col-md-6 { width: 50%; }
.col-md-7 { width: 58.33333333%; }
.col-md-8 { width: 66.66666667%; }
.col-md-12 { width: 100%; }

.col-md-offset-2 { margin-left: 16.66666667%; }

.align-items-center {
    align-items: center;
}

/* WhatsApp Pulse Animation */
@keyframes pulse-border {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@media (max-width: 480px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 25px;
    }
}

.whatsapp-float {
    animation: pulse-border 2s infinite;
}