/* --- Reset & Basic Styles --- */
:root {
    --primary-color: #007bff; /* Example blue */
    --secondary-color: #0a192f; /* Dark navy blue */
    --accent-color: #64ffda;   /* Teal/Mint accent - adjust as needed */
    --text-color-light: #ccd6f6;
    --text-color-dark: #8892b0;
    --background-dark: #0a192f;
    --background-light: #112240; /* Slightly lighter navy */
    --border-color: #233554;
    --font-sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; /* Example font stack */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--background-dark);
    color: var(--text-color-light);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #fff;
}

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

section {
    padding: 80px 0;
}

h1, h2, h3, h4 {
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.3;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2rem; text-align: center; margin-bottom: 40px;}
h3 { font-size: 1.5rem; }

/* --- Header --- */
.main-header {
    background-color: rgba(10, 25, 47, 0.85); /* Semi-transparent */
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

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

.logo img {
    height: 40px; /* Adjust as needed */
}
/* OR Text Logo styling */
/* .logo span { font-size: 1.5rem; font-weight: bold; color: #fff; } */


.main-nav ul {
    list-style: none;
    display: flex;
}

.main-nav li {
    margin-left: 25px;
}

.main-nav a {
    color: var(--text-color-light);
    font-weight: 500;
}
.main-nav a:hover, .main-nav a.active {
    color: var(--accent-color);
}

.lang-switch a {
    border: 1px solid var(--accent-color);
    padding: 5px 10px;
    border-radius: 4px;
}
.lang-switch a:hover {
     background-color: rgba(100, 255, 218, 0.1);
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none; /* Hidden by default */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color-light);
    position: relative;
    transition: background-color 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background-color: var(--text-color-light);
    left: 0;
    transition: transform 0.3s ease;
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }


/* --- Hero Section --- */
.hero-section {
    background-color: var(--background-dark); /* Add background image/gradient here */
    /* background-image: url('img/hero-background.jpg'); */
    background-size: cover;
    background-position: center;
    min-height: 80vh; /* Adjust height */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 120px; /* Account for fixed header */
    color: #fff;
}

.hero-section h1 {
    margin-bottom: 15px;
}
.hero-section h2 {
    font-size: 1.4rem;
    color: var(--text-color-light);
    max-width: 700px;
    margin: 0 auto 20px;
    font-weight: normal;
    text-align: center;
}

.powered-by {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 30px;
    color: var(--text-color-dark);
}
.deepseek-logo {
    height: 20px; /* Adjust */
    vertical-align: middle;
}

.hero-metrics {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.metric-item {
    text-align: center;
}

.metric-item .value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-color);
    display: block;
}
.metric-item .unit {
     font-size: 1.5rem;
     margin-left: 2px;
}

.metric-item .label {
    display: block;
    color: var(--text-color-dark);
    margin-top: 5px;
}
.metric-item .icon {
    font-size: 1.5rem; /* Adjust icon size */
    margin-top: 8px;
    display: block;
}


.cta-button {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--background-dark);
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
    background-color: #fff; /* Or slightly lighter accent */
    color: var(--background-dark);
    transform: translateY(-2px);
}

.cta-button.secondary {
    background-color: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}
.cta-button.secondary:hover {
     background-color: rgba(100, 255, 218, 0.1);
     color: var(--accent-color);
}

/* --- Solutions Overview --- */
.solutions-overview {
    background-color: var(--background-light);
}
.solutions-overview h2 + p { /* Target paragraph directly after h2 */
    text-align: center;
    max-width: 600px;
    margin: -20px auto 40px;
    color: var(--text-color-dark);
}


.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.solution-item {
    background-color: var(--background-dark);
    padding: 30px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.solution-item .icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--accent-color); /* Or use specific icons */
}
.solution-item h3 {
    margin-bottom: 10px;
}
.solution-item p {
    color: var(--text-color-dark);
    margin-bottom: 15px;
    font-size: 0.9rem;
}
.solution-item a {
    font-weight: bold;
    font-size: 0.9rem;
}
.solutions-overview .cta-button {
    display: block;
    width: fit-content;
    margin: 0 auto; /* Center the button */
}


/* --- Tech & Security Snippet --- */
.tech-security-snippet {
    background-color: var(--background-dark); /* Or slightly different shade */
}
.tech-security-snippet .tech-content {
    display: flex;
    flex-wrap: wrap; /* Allow wrap on small screens */
    gap: 40px;
    justify-content: space-around;
    align-items: flex-start; /* Align items top */
}
.tech-logos p, .security-info p:first-child {
    font-weight: bold;
    color: #fff;
    margin-bottom: 15px;
}
.tech-logos img {
    height: 30px; /* Adjust logo size */
    margin: 5px 10px 5px 0;
    opacity: 0.8;
    transition: opacity 0.3s;
}
.tech-logos img:hover {
    opacity: 1;
}
.security-info ul {
    list-style: none;
}
.security-info li {
    margin-bottom: 8px;
    color: var(--text-color-light);
}
.security-info li::before {
    content: '✅'; /* Or other checkmark */
    margin-right: 8px;
    color: var(--accent-color);
}


/* --- Customer Logos --- */
.customer-logos {
     background-color: var(--background-light);
}
.logo-wall {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px; /* Adjust spacing */
    margin-bottom: 40px;
}

.logo-wall img {
    height: 40px; /* Adjust logo height */
    opacity: 0.7;
    transition: opacity 0.3s ease;
    filter: grayscale(80%) brightness(150%); /* Make them blend in */
}

.logo-wall img:hover {
    opacity: 1;
    filter: none;
}
.customer-logos .cta-button {
     display: block;
     width: fit-content;
     margin: 0 auto;
}

/* --- About Us Snippet --- */
.about-snippet {
    text-align: center;
}
.about-snippet p {
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--text-color-dark);
}

/* --- Contact Snippet --- */
.contact-snippet {
    background-color: var(--background-light);
    text-align: center;
}
.contact-snippet p {
    max-width: 600px;
    margin: -20px auto 30px;
    color: var(--text-color-dark);
}


/* --- Footer --- */
.main-footer {
    background-color: var(--background-dark);
    color: var(--text-color-dark);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-columns {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col {
    flex-basis: calc(33% - 20px); /* Adjust for 3 columns */
    min-width: 200px;
}

.footer-col h4 {
    color: #fff;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.footer-col p, .footer-col ul {
    font-size: 0.9rem;
}

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

.footer-col li {
    margin-bottom: 8px;
}

.footer-col a {
    color: var(--text-color-dark);
}
.footer-col a:hover {
    color: var(--accent-color);
}

.social-icons {
    margin-top: 15px;
}
.social-icons a {
    margin-right: 15px;
    display: inline-block;
}
.social-icons img {
    height: 24px; /* Adjust icon size */
    opacity: 0.7;
    transition: opacity 0.3s;
}
.social-icons img:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-color-dark);
}
.footer-bottom p {
    margin-bottom: 5px;
}
.footer-bottom a {
     color: var(--text-color-dark);
}
.footer-bottom a:hover {
     color: var(--accent-color);
}


/* --- Responsive Design --- */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }

    .nav-toggle {
        display: block; /* Show hamburger */
        z-index: 1001; /* Above nav */
    }

    .main-nav ul {
        display: none; /* Hide nav links by default */
        position: fixed;
        top: 0;
        right: 0;
        width: 70%; /* Adjust width */
        height: 100vh;
        background-color: var(--background-light);
        flex-direction: column;
        padding-top: 80px; /* Space below header */
        align-items: center;
        border-left: 1px solid var(--border-color);
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
    }

    .main-nav ul.nav-active {
        display: flex; /* Show nav links when active */
        transform: translateX(0);
    }

    .main-nav li {
        margin: 15px 0;
        width: 100%;
        text-align: center;
    }
     .main-nav a {
        font-size: 1.1rem;
     }

    /* Style hamburger when menu is open */
    .nav-toggle.active .hamburger {
        background-color: transparent; /* Hide middle line */
    }
    .nav-toggle.active .hamburger::before {
        transform: rotate(45deg) translate(5px, 6px);
    }
    .nav-toggle.active .hamburger::after {
         transform: rotate(-45deg) translate(5px, -6px);
    }


    .hero-metrics {
        gap: 20px;
    }
     .metric-item .value { font-size: 2rem; }

    .footer-columns {
        flex-direction: column;
        text-align: center;
    }
    .footer-col {
        flex-basis: 100%;
    }
}