* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Segoe UI", sans-serif;
}

body {
    color: #1f2937;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 60px;
    background: #0f172a;
    color: white;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

.logo span {
    color: #38bdf8;
}

.navbar nav a {
    margin-left: 24px;
    font-weight: 500;
}

/* Buttons */
.btn, .btn-primary, .btn-secondary {
    padding: 10px 18px;
    border-radius: 6px;
}

.btn-primary {
    background: #38bdf8;
    color: #0f172a;
    font-weight: 600;
}

.btn-secondary {
    border: 1px solid white;
    color: white;
}

/* Hero */
.hero {
    background: linear-gradient(
        rgba(15,23,42,0.7),
        rgba(15,23,42,0.7)
    ),
    url("https://images.unsplash.com/photo-1534751516642-a1af1ef26a56");
    background-size: cover;
    background-position: center;
    padding: 140px 60px;
    color: white;
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-buttons a {
    margin-right: 16px;
}

/* Sections */
.section {
    padding: 80px 60px;
}

.section.light {
    background: #f8fafc;
}

.section h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 32px;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.card h3 {
    padding: 20px 20px 10px;
}

.card p {
    padding: 0 20px 20px;
}

/* Solutions */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
}

.solution {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.06);
}

/* About */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-content img {
    width: 100%;
    border-radius: 12px;
}

/* Contact */
.contact-form {
    max-width: 500px;
    margin: auto;
    display: flex;
    flex-direction: column;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    margin-bottom: 16px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
}

/* Footer */
.footer {
    background: #0f172a;
    color: #94a3b8;
    text-align: center;
    padding: 30px;
}