## FILE 1: style.css (Theme Header + All CSS)
```css
/*
Theme Name: SymoAI
Description: Custom theme for SymoAI consulting website
Version: 1.0
Author: SymoAI
*/

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header - Clean minimal style */
header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 40px;
    width: auto;
    max-width: 150px;
}

.logo .ai-text {
    color: #06b6d4;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #0f172a;
}

.cta-button {
    background: #0f172a;
    color: white;
    padding: 12px 24px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s;
}

.cta-button:hover {
    background: #1e293b;
}

/* Hero Section - Clean and minimal */
.hero {
    background: #ffffff;
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #0f172a;
    line-height: 1.1;
}

.hero p {
    font-size: 20px;
    color: #4b5563;
    max-width: 680px;
    margin: 0 auto 40px;
    line-height: 1.5;
}

.hero-cta {
    display: inline-flex;
    gap: 16px;
    margin-top: 16px;
}

.btn-primary {
    background: #0f172a;
    color: white;
    padding: 16px 32px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 16px;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: #1e293b;
}

.btn-secondary {
    background: transparent;
    color: #1a1a1a;
    padding: 16px 32px;
    text-decoration: none;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s;
}

.btn-secondary:hover {
    border-color: #0f172a;
    background: #f1f5f9;
}

/* Services Section */
.services {
    padding: 80px 0;
    background: #f1f5f9;
}

.services h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
    text-align: center;
}

.services-subtitle {
    text-align: center;
    font-size: 18px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    max-width: 1100px;
    margin: 60px auto 0;
    gap: 32px;
}

.service-card {
    background: white;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
}

.service-card:hover {
    border-color: #d1d5db;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.service-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
}

.service-card p {
    color: #4b5563;
    margin-bottom: 24px;
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
    color: #6b7280;
}

.service-card li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.service-card li:before {
    content: "•";
    color: #06b6d4;
    position: absolute;
    left: 0;
}

/* Process Section */
.process {
    padding: 80px 0;
    background: #ffffff;
}

.process h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
    text-align: center;
}

.process-subtitle {
    text-align: center;
    font-size: 18px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 60px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    max-width: 1000px;
    margin: 60px auto 0;
    gap: 40px;
}

.process-step {
    text-align: center;
    padding: 40px 30px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    background: #ffffff;
    transition: all 0.2s;
}

.process-number {
    width: 60px;
    height: 60px;
    background: #06b6d4;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 24px;
}

.process-step h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
}

.process-step p {
    color: #4b5563;
    line-height: 1.6;
}

/* Target Section */
.target {
    padding: 80px 0;
    background: #f1f5f9;
}

.target h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
    text-align: center;
}

.target-subtitle {
    text-align: center;
    font-size: 18px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 60px;
}

.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.target-card {
    background: white;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

.target-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
}

.target-card p {
    color: #4b5563;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #ffffff;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 32px;
    color: #0f172a;
}

.about p {
    font-size: 18px;
    color: #4b5563;
    margin-bottom: 24px;
    line-height: 1.6;
}

/* Blog Section */
.blog {
    padding: 80px 0;
    background: #f1f5f9;
}

.blog h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #0f172a;
    text-align: center;
}

.blog-subtitle {
    text-align: center;
    font-size: 18px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 60px;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.blog-card {
    background: white;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    overflow: hidden;
    transition: all 0.2s;
}

.blog-card:hover {
    border-color: #d1d5db;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.blog-content {
    padding: 32px;
}

.blog-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #0f172a;
    line-height: 1.3;
}

.blog-card p {
    color: #4b5563;
    margin-bottom: 16px;
    line-height: 1.6;
}

.blog-link {
    color: #06b6d4;
    font-weight: 600;
    text-decoration: none;
}

.blog-link:hover {
    text-decoration: underline;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #0f172a;
    color: white;
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-subtitle {
    text-align: center;
    font-size: 18px;
    color: #d1d5db;
    max-width: 600px;
    margin: 0 auto 60px;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 40px;
    border-radius: 8px;
    color: #1a1a1a;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #06b6d4;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.submit-btn {
    background: #06b6d4;
    color: white;
    padding: 16px 32px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: background 0.2s;
}

.submit-btn:hover {
    background: #0891b2;
}

/* Footer */
footer {
    background: #111827;
    color: white;
    padding: 60px 0 30px;
}

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

.footer-section h3 {
    margin-bottom: 20px;
    color: white;
    font-weight: 700;
}

.footer-section a {
    color: #d1d5db;
    text-decoration: none;
    display: block;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 30px;
    text-align: center;
    color: #9ca3af;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .services-grid,
    .process-grid,
    .target-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 16px;
    }
}

.nav-links a.active {
    color: #0f172a;
    font-weight: 600;
}