:root {
    /* Colors */
    --bg-color: #0a0a0a;
    --bg-card: #111111;
    --accent-color: #ffd700;
    --accent-dim: rgba(255, 215, 0, 0.1);
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --border-color: #333333;
    --grid-line-color: rgba(255, 255, 255, 0.05);

    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Blueprint borders */
    --border-width: 1px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    /* Clean technical grid background */
    background-image:
        linear-gradient(var(--grid-line-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line-color) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Typography Defaults */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

.text-accent {
    color: var(--accent-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    border: var(--border-width) solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background-color: #e5c200;
    border-color: #e5c200;
}

.btn-primary-sm {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    padding: 0.5rem 1.2rem;
    font-size: 0.8rem;
}

.btn-primary-sm:hover {
    background-color: #e5c200;
    border-color: #e5c200;
}

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

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Navigation */
.navbar {
    padding: 1.5rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

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

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links li a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.nav-links li a:hover,
.nav-links li a.btn-primary-sm {
    color: var(--text-primary);
}

.nav-links li a.btn-primary-sm {
    color: var(--bg-color);
}


.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle .bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: 0.3s;
}

/* Hero Section */
.hero-section {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.headline {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.subheadline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* System Diagram */
.system-diagram {
    position: relative;
    height: 400px;
    width: 100%;
    /* border: 1px dashed var(--border-color); */
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Abstract Node Styles */
.node {
    width: 60px;
    height: 60px;
    border: 2px solid var(--text-primary);
    background: var(--bg-card);
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.node::after {
    content: attr(data-label);
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-heading);
    font-size: 0.7rem;
    color: var(--accent-color);
    letter-spacing: 0.1em;
}

.node-process {
    width: 100px;
    height: 100px;
    border-color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--accent-dim);
}

.gear-icon {
    width: 40px;
    height: 40px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    border-style: dashed;
    animation: spin 20s linear infinite;
}

@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}

.connection {
    height: 2px;
    background-color: var(--text-secondary);
    width: 60px;
    position: relative;
}

.v-line {
    position: absolute;
    width: 1px;
    background-color: var(--border-color);
    height: 100%;
    top: 0;
}

.v-line.left {
    left: 20%;
}

.v-line.right {
    right: 20%;
}


/* General Section Styles */
.section {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.card-icon {
    font-family: var(--font-heading);
    color: var(--accent-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

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

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* Process Timeline */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 25px;
    /* Adjust based on step-number height */
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--border-color);
    z-index: 0;
}

.process-step {
    position: relative;
    z-index: 1;
    background-color: var(--bg-color);
    /* Mask the line behind text */
    padding-top: var(--spacing-md);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--border-color);
    /* Faded look */
    margin-bottom: var(--spacing-sm);
    background-color: var(--bg-color);
    display: inline-block;
    padding-right: 1rem;
}

.process-step:hover .step-number {
    color: var(--accent-color);
}

.step-content h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.step-content p {
    color: var(--text-secondary);
}

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

.blog-meta {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.read-more {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.read-more:hover {
    color: var(--accent-color);
}

.loading-state,
.error-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-lg);
    font-family: var(--font-heading);
    color: var(--text-secondary);
    border: 1px dashed var(--border-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.error-state {
    color: #ff4d4d;
    border-color: #ff4d4d33;
}

/* Contact Section */

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-form {
    background-color: var(--bg-card);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: var(--font-body);
}

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

/* Footer */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
}

.footer-links a {
    margin-left: var(--spacing-md);
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {

    .hero-container,
    .contact-container {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        display: none;
        /* Hide visual on small screens if too complex, or adjust */
    }

    .process-timeline {
        grid-template-columns: 1fr;
    }

    .process-timeline::before {
        width: 1px;
        height: 100%;
        left: 20px;
        top: 0;
    }

    .process-step {
        padding-left: 50px;
    }

    .nav-links {
        display: none;
        /* Add JS toggle for mobile menu later */
    }

    .mobile-toggle {
        display: flex;
    }

    .headline {
        font-size: 2.5rem;
    }
}