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

body {
    font-family: "Segoe UI", Arial, sans-serif;
    background-color: #ffffff;
    color: #374151;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 28px;
}

/* NAVIGATION */

nav {
    padding: 24px 0;
    border-bottom: 1px solid #eef1f5;
    background: #ffffff;
}

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

nav strong {
    font-weight: 600;
    color: #1f2937;
    font-size: 1rem;
}

nav a {
    text-decoration: none;
    color: #6b7280;
    margin-left: 24px;
    font-weight: 500;
    transition: color 0.2s ease;
}

nav a:hover {
    color: #2563eb;
}

/* HERO */

.hero {
    padding: 160px 0 140px 0;
    background: linear-gradient(to bottom, #f4f6fb 0%, #ffffff 65%);
    position: relative;
    overflow: hidden;
}

.hero h1 {
    font-size: 2.6rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 26px;
    max-width: 760px;
    position: relative;
    z-index: 2;
}

.hero p {
    font-size: 1.15rem;
    color: #6b7280;
    max-width: 650px;
    position: relative;
    z-index: 2;
}

.hero::after {
    content: "";
    position: absolute;
    right: -200px;
    top: 80px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, rgba(37,99,235,0.02) 60%, transparent 70%);
    border-radius: 50%;
}

/* SECTIONS */

.section {
    padding: 120px 0;
}

.section:nth-child(even) {
    background-color: #fafbfe;
}

.section h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 24px;
}

.section p {
    margin-bottom: 20px;
    color: #4b5563;
}

/* CARDS */

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.card {
    background: #ffffff;
    padding: 40px;
    border-radius: 14px;
    box-shadow: 0 16px 35px rgba(0, 0, 0, 0.04);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.06);
}

.card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 14px;
}

.card p {
    color: #6b7280;
    font-size: 0.95rem;
}

/* FOOTER */

footer {
    border-top: 1px solid #eef1f5;
    padding: 70px 0;
    margin-top: 140px;
    font-size: 0.85rem;
    color: #9ca3af;
}