/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    --primary-color: #007bff; /* Vibrant Blue for 3D Printing Tech Feel */
    --primary-dark: #0056b3;
    --secondary-color: #f8f9fa;
    --accent-color: #ff6b00; /* Vibrant Orange for high contrast maker vibe */
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #ffffff;
    --bg-light: #f4f7f6;
    --bg-dark: #222222;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --transition: all 0.3s ease;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Global Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 5rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

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

/* Typography */
h1, h2, h3, h4 {
    color: var(--bg-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    display: inline-block;
}

.underline {
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

.section-desc {
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: #fff;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    z-index: 999;
}

.logo-img {
    height: 60px; /* Adjust based on actual logo size */
    width: auto;
}

.primary-navigation {
    display: flex;
    gap: 2rem;
}

.primary-navigation a {
    color: var(--text-color);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: relative;
}

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

.primary-navigation a:hover::after {
    width: 100%;
}

.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--bg-dark);
    z-index: 999;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(34, 34, 34, 0.8), rgba(34, 34, 34, 0.8)), url('data:image/svg+xml;charset=UTF-8,%3Csvg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%"%3E%3Crect width="100%" height="100%" fill="%23333" /%3E%3C/svg%3E') center/cover;
    /* You can replace the linear gradient URL with a high-res 3D printing background image */
    color: #fff;
    text-align: center;
    padding-top: 120px; /* offset for fixed header */
    padding-bottom: 40px;
}

.hero h1 {
    color: #fff;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero .highlight {
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-light);
}

.about-text h3 {
    margin-top: 2rem;
    color: var(--primary-color);
}

.about-image .image-placeholder {
    background-color: var(--bg-light);
    height: 400px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    box-shadow: var(--box-shadow);
}

.about-image .image-placeholder p {
    margin-top: 1rem;
    font-weight: 600;
    color: var(--text-light);
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

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

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.icon-box {
    width: 50px;
    height: 50px;
    background-color: var(--bg-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-item h4 {
    margin-bottom: 0.2rem;
    font-size: 1.1rem;
}

.info-item p {
    color: var(--text-light);
}

.contact-form {
    background: #fff;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

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

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.contact-form .btn {
    width: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: var(--bg-dark);
    color: #fff;
    padding: 4rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    color: #fff;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #bbb;
    font-size: 0.95rem;
}

.footer-links h4,
.footer-social h4 {
    color: #fff;
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: #bbb;
}

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bbb;
    font-size: 0.9rem;
}

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 900px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }
    
    .primary-navigation {
        position: fixed;
        z-index: 998;
        inset: 0 0 0 30%;
        flex-direction: column;
        padding: min(20vh, 10rem) 2em;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        transform: translateX(100%);
        transition: transform 350ms ease-out;
    }
    
    .primary-navigation[data-visible="true"] {
        transform: translateX(0%);
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}