/* Design System & Variables */
:root {
    /* Colors */
    --primary-color: #558B6E;
    /* Soft Sage Green - Professional, Clean, Calming */
    --secondary-color: #3D6650;
    /* Darker Green - Contrast */
    --accent-color: #83AFA0;
    /* Light Green - Highlights */
    --text-color: #333333;
    /* Dark Grey - Readability */
    --light-text: #ffffff;
    /* White - Contrast */
    --background-color: #F2F7F5;
    /* Very Light Green Tint - Cleanliness */
    --white: #ffffff;

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

    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition: all 0.3s ease;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

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

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

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

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

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

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

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

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Hidden by default on mobile, toggled via JS */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        text-align: center;
    }

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

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(85, 139, 110, 0.8), rgba(61, 102, 80, 0.8)), url('../images/hero-bg.jpg');
    /* Fallback or placeholder needed */
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 100px 0;
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

/* If no image, use a solid color fallback */
.hero {
    background-color: var(--primary-color);
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btns {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.hero-btns .btn-outline {
    border-color: var(--white);
    color: var(--white);
}

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

/* Section Padding */
.section-padding {
    padding: var(--spacing-xl) 0;
}

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

.section-header {
    margin-bottom: var(--spacing-xl);
}

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

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

.feature-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

/* CTA Section */
.cta-section {
    background-color: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.cta-section h2 {
    color: var(--white);
}

.cta-section .btn {
    background-color: var(--white);
    color: var(--secondary-color);
    margin-top: var(--spacing-md);
}

.cta-section .btn:hover {
    background-color: var(--background-color);
}

/* Services Page */
.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.page-header h1 {
    color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--secondary-color);
}

.service-icon {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.service-card ul {
    margin-top: var(--spacing-md);
    padding-left: var(--spacing-md);
    list-style-type: disc;
}

.service-card li {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

/* Industries Section */
.bg-light {
    background-color: #e9ecef;
}

.industries-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.industries-list li {
    background: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 500;
}

/* Contact Page - Modern Centered Card */
.contact-card-centered {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.contact-card-header {
    margin-bottom: var(--spacing-xl);
}

.contact-card-header h2 {
    font-size: 2.2rem;
    margin-bottom: var(--spacing-sm);
}

.contact-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.contact-detail-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    transition: var(--transition);
}

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

.icon-box {
    width: 70px;
    height: 70px;
    background-color: rgba(85, 139, 110, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
}

.contact-detail-item:hover .icon-box {
    background-color: var(--primary-color);
}

.contact-detail-item:hover .icon-box i {
    color: var(--white);
}

.icon-box i {
    font-size: 1.8rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.contact-detail-item h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.contact-detail-item p {
    color: #666;
}

@media (max-width: 768px) {
    .contact-card-centered {
        padding: var(--spacing-lg);
    }

    .contact-details-grid {
        gap: var(--spacing-lg);
    }
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

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