:root {
    --primary-blue: #0a192f;
    --secondary-blue: #112240;
    --accent-cyan: #00d9ff;
    --text-light: #ccd6f6;
    --text-dim: #8892b0;
    --border-gray: #233554;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--primary-blue);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(17, 34, 64, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--border-gray);
}
.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.nav a {
    margin-left: 30px;
    text-decoration: none;
    color: var(--text-dim);
    transition: color 0.3s ease;
    font-weight: 500;
}
.nav a:hover {
    color: var(--accent-cyan);
}
.btn {
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    text-align: center;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), #64ffda);
    color: var(--primary-blue);
    border: none;
}
.btn-outline {
    border: 1px solid var(--border-gray);
    color: var(--text-light);
}
.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}
.btn-outline-light {
    border: 1px solid var(--text-light);
    color: var(--text-light);
}

/* Hero */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(to bottom, var(--primary-blue) 50%, var(--secondary-blue) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.1;
}
.subtitle {
    font-size: 1.2rem;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto 40px;
}
.cta-buttons {
    margin-bottom: 60px;
}
.trust-logos span {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Services */
.services {
    padding: 100px 0;
    background-color: var(--secondary-blue);
}
.services h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
}
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}
.card {
    background: var(--primary-blue);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-gray);
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-cyan), transparent);
}
.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-cyan);
}
.icon-solidworks, .icon-catia, .icon-reverse, .icon-consult {
    width: 50px;
    height: 50px;
    margin-bottom: 20px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}
.icon-solidworks { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%2300aff0" d="M256 0C114.6 0 0 114.6 0 256s114.6 256 256 256s256-114.6 256-256S397.4 0 256 0zM384 256c0-70.7-57.3-128-128-128V64l96 96l-96 96v-32c47.1 0 85.3 38.2 85.3 85.3s-38.2 85.3-85.3 85.3H128c-70.7 0-128 57.3-128 128s57.3 128 128 128h128c70.7 0 128-57.3 128-128z"/></svg>'); }
.icon-catia { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64"><circle cx="32" cy="32" r="30" fill="%23ffd400"/><path fill="%23000" d="M32 12c11 0 20 9 20 20s-9 20-20 20S12 43 12 32 21 12 32 12zm0-8C15.4 4 4 15.4 4 32s11.4 28 28 28 28-11.4 28-28S48.6 4 32 4z"/></svg>'); }
.icon-reverse { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%23fff" d="M256 8C119 8 8 119 8 256s111 248 248 248s248-111 248-248S393 8 256 8zm0 448c-110.5 0-200-89.5-200-200S145.5 56 256 56s200 89.5 200 200-89.5 200-200 200zm0-352c-17.7 0-32 14.3-32 32V288H112c-17.7 0-32 14.3-32 32s14.3 32 32 32h112V416c0 17.7 14.3 32 32 32s32-14.3 32-32V352h112c17.7 0 32-14.3 32-32s-14.3-32-32-32H320V128c0-17.7-14.3-32-32-32z"/></svg>'); }
.icon-consult { background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="%23fff" d="M256 32c-70.7 0-128 57.3-128 128c0 49.4 28.7 92.6 71.2 113.3c11.5 5.6 20.5 15.8 25.2 28.5c4.7 12.7 1.4 27.1-8.5 36.1c-9.9 9-23.9 14.1-38.1 14.1c-43.9 0-79.6-35.7-79.6-79.6c0-14.2 5.1-28.2 14.1-38.1c9-9.9 23.4-13.2 36.1-8.5c12.7 4.7 22.9 13.7 28.5 25.2c20.7 42.5 63.9 71.2 113.3 71.2s92.6-28.7 113.3-71.2c5.6-11.5 15.8-20.5 28.5-25.2c12.7-4.7 27.1-1.4 36.1 8.5c9 9.9 14.1 23.9 14.1 38.1c0 43.9-35.7 79.6-79.6 79.6c-14.2 0-28.2-5.1-38.1-14.1c-9.9-9-13.2-23.4-8.5-36.1c4.7-12.7 13.7-22.9 25.2-28.5c42.5-20.7 71.2-63.9 71.2-113.3c0-70.7-57.3-128-128-128zm0 416c-105.9 0-192-86.1-192-192c0-105.9 86.1-192 192-192s192 86.1 192 192c0 105.9-86.1 192-192 192z"/></svg>'); }

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}
.card p {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* Technology */
.technology {
    padding: 100px 0;
    background-color: var(--primary-blue);
    text-align: center;
}
.software-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 50px;
}
.software-card {
    background: var(--secondary-blue);
    padding: 40px 30px;
    border-radius: 16px;
    border: 1px solid var(--border-gray);
    position: relative;
    overflow: hidden;
}
.sw-bg, .catia-bg {
    position: absolute;
    opacity: 0.08;
    pointer-events: none;
    filter: blur(40px);
}
.sw-bg {
    width: 200px;
    height: 200px;
    background-color: #00aff0;
    top: -50px;
    right: -50px;
}
.catia-bg {
    width: 180px;
    height: 180px;
    background-color: #ffd400;
    bottom: -40px;
    left: -40px;
}
.software-card h3 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}
.software-card ul {
    list-style: none;
    text-align: left;
    color: var(--text-dim);
}
.software-card li {
    padding: 8px 0;
    font-size: 0.95rem;
    position: relative;
    padding-left: 30px;
}
.software-card li::before {
    content: '✓';
    color: var(--accent-cyan);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Portfolio */
.portfolio {
    padding: 100px 0;
    background-color: var(--secondary-blue);
}
.case-study {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px;
    border-bottom: 1px solid var(--border-gray);
    padding-bottom: 80px;
}
.reverse {
    flex-direction: row-reverse;
}
.case-text h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}
.case-text p {
    color: var(--text-dim);
    margin-bottom: 15px;
}
.tag {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--accent-cyan);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-right: 10px;
    border: 1px solid var(--accent-cyan);
}
.case-img {
    width: 400px;
    height: 300px;
    border-radius: 12px;
    background-size: cover;
    background-position: center;
    border: 1px solid var(--border-gray);
}
.case-img-1 { background-image: url('https://images.unsplash.com/photo-1581091878583-45bfe1b1359d?q=80&w=1200'); }
.case-img-2 { background-image: url('https://images.unsplash.com/photo-1541948522-86199e9ae6c3?q=80&w=1200'); }

/* Contact Form */
.contact-form-section {
    padding: 100px 0;
    background: linear-gradient(to bottom, var(--primary-blue), var(--secondary-blue));
    text-align: center;
}
.contact-form {
    max-width: 600px;
    margin: 50px auto 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.contact-form input, .contact-form textarea {
    background: var(--secondary-blue);
    border: 1px solid var(--border-gray);
    color: var(--text-light);
    padding: 15px 20px;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

/* Footer */
.footer {
    background: var(--primary-blue);
    padding: 60px 0 20px;
    border-top: 1px solid var(--border-gray);
}
.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-col h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}
.footer-col a {
    display: block;
    color: var(--text-dim);
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s;
}
.footer-col a:hover {
    color: var(--accent-cyan);
}
.logo-footer {
    font-size: 1.6rem;
    margin-bottom: 15px;
}
.footer-bottom {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
    padding-top: 20px;
    border-top: 1px solid var(--border-gray);
}

/* Responsive */
@media (max-width: 768px) {
    .header .container { flex-wrap: wrap; height: auto; padding: 20px 0; }
    .nav { order: 2; width: 100%; text-align: center; margin-top: 15px; }
    .nav a { margin: 0 15px; }
    .hero { padding: 120px 0 80px; }
    .hero h1 { font-size: 2.5rem; }
    .software-grid, .footer-top { grid-template-columns: 1fr; }
    .case-study, .reverse { flex-direction: column; text-align: center; }
    .case-img { width: 100%; }
}