:root {
    --primary: #3BB77E;
    --primary-light: #EBF8F2;
    --primary-dark: #2d8a5f;
    --black: #010f1c;
    --grey: #646464;
    --light-grey: #f5f7f9;
    --white: #ffffff;
    --shadow: rgba(59, 183, 126, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--light-grey);
    color: var(--black);
    line-height: 1.6;
    overflow-x: hidden;
}

.header {
    background: linear-gradient(135deg, var(--black) 0%, #1a2a3a 100%);
    color: var(--white);
    padding: 80px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -10%;
    width: 120%;
    height: 100px;
    background: var(--light-grey);
    transform: rotate(-2deg);
}

.header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 10px;
    background: linear-gradient(to right, var(--primary), #a2ffd3);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

.container {
    max-width: 900px;
    margin: -40px auto 60px;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

.content-card {
    background: var(--white);
    padding: 50px;
    border-radius: 24px;
    box-shadow: 0 20px 40px var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.last-updated {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 30px;
}

h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 45px 0 20px;
    color: var(--black);
    display: flex;
    align-items: center;
}

h2::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 24px;
    background: var(--primary);
    margin-right: 15px;
    border-radius: 4px;
}

h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 25px 0 15px;
    color: var(--grey);
}

p {
    margin-bottom: 20px;
    font-size: 1.05rem;
    color: #4a5568;
}

ul {
    list-style: none;
    margin-bottom: 25px;
}

li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    color: #4a5568;
}

li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.feature-item {
    background: var(--light-grey);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid #eef0f2;
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    background: var(--white);
    box-shadow: 0 10px 20px var(--shadow);
    border-color: var(--primary-light);
}

.feature-item strong {
    display: block;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.footer {
    text-align: center;
    padding: 60px 20px;
    background: var(--black);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer strong {
    color: var(--white);
    display: block;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.contact-box {
    background: linear-gradient(to right, var(--primary), var(--primary-dark));
    padding: 30px;
    border-radius: 20px;
    color: var(--white);
    margin-top: 50px;
    text-align: center;
}

.contact-box h3 {
    color: var(--white);
    margin-top: 0;
}

.contact-box a {
    color: var(--white);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 4px;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2.5rem;
    }

    .content-card {
        padding: 30px 20px;
    }
}