:root {
    /* Brand Colors */
    --color-primary: #0F2A3D;
    /* Logo */
    --color-secondary: #1E4258;
    /* Variation */
    --color-text: #2B2F33;
    /* Dark Text */
    --color-bg-light: #F2F4F6;
    /* Light Background */
    --color-white: #FFFFFF;
    --color-accent: #3FB8AF;
    /* UI Accent */

    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --container-width: 1200px;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

ul {
    list-style: none;
}

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

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #2da098;
    /* Darker shade of accent */
}

/* Header */
.header {
    background-color: var(--color-white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo img {
    height: 50px;
    /* Adjust based on actual logo ratio */
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--color-primary);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
}

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

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 0;
    margin-top: 4rem;
    /* Ensure footer pushes down */
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.footer-info h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--color-accent);
}

.footer-info p {
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        text-align: center;
    }

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

    .mobile-menu-btn {
        display: block;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* Hero Section */
.hero {
    height: 60vh;
    position: relative;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
}

.hero-slide {
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Sections */
.section {
    padding: 4rem 0;
}

.py-lg {
    padding: 6rem 0;
}

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

.text-right {
    text-align: right;
}

@media (max-width: 768px) {
    .text-right {
        text-align: center;
    }

    .hero h1 {
        font-size: 2rem;
    }
}

.section-header {
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

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

.feature-card {
    background: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    border-top: 4px solid var(--color-accent);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    width: 100%;
}

.card-content {
    padding: 2rem;
}

.feature-card h3 {
    color: var(--color-secondary);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

/* Certification Badge */
.certification-badge {
    display: inline-flex;
    align-items: center;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    border: 2px solid var(--color-accent);
    margin: 2rem 0;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(63, 184, 175, 0.2);
}

.certification-badge i {
    margin-right: 0.75rem;
    color: var(--color-accent);
}

.text-success-quote {
    color: var(--color-primary);
    font-style: italic;
    font-weight: 600;
    font-size: 1.25rem;
    margin-top: 3rem;
    opacity: 0.9;
}

/* Specific Grid for 4 items (2x2) */
.services-grid-2col {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .services-grid-2col {
        grid-template-columns: 1fr;
    }
}