:root {
    --primary: #2e7d32;
    --primary-light: #e8f5e9;
    --accent: #f57c00;
    --dark: #1b5e20;
    --text: #2d3436;
    --white: #ffffff;
    --gray: #f4f7f6;
}

* { box-sizing: border-box; transition: all 0.3s ease; }

body {
    margin: 0;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background-color: var(--white);
    line-height: 1.8;
}

.container { width: 85%; max-width: 1200px; margin: 0 auto; }

.skip-link {
    position: absolute; top: -100px; left: 0; background: var(--accent);
    color: white; padding: 15px; z-index: 1000; text-decoration: none;
}
.skip-link:focus { top: 0; }

header {
    background: var(--white);
    padding: 20px 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    position: sticky; top: 0; z-index: 999;
}

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

.logo { 
    font-size: 1.8rem; font-weight: 800; color: var(--primary); 
    text-transform: uppercase; letter-spacing: 1px;
}

nav ul { list-style: none; display: flex; gap: 30px; margin: 0; padding: 0; }

nav a {
    text-decoration: none; color: var(--text); font-weight: 600;
    font-size: 1rem; position: relative; padding: 5px 0;
}

nav a::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0;
    height: 2px; background: var(--accent); transition: 0.3s;
}

nav a:hover::after, nav a.active::after { width: 100%; }
nav a.active { color: var(--primary); }

.hero {
    background: linear-gradient(135deg, var(--primary-light) 0%, #ffffff 100%);
    padding: 120px 0;
    text-align: center;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.hero h1 { 
    font-size: 3.5rem; margin: 0 0 20px; color: var(--dark); 
    line-height: 1.2; letter-spacing: -1px;
}

.hero p { font-size: 1.25rem; color: #636e72; max-width: 700px; margin: 0 auto 40px; }

.cta-button {
    display: inline-block; background: var(--accent); color: white;
    padding: 18px 40px; text-decoration: none; border-radius: 50px;
    font-weight: bold; font-size: 1.1rem; box-shadow: 0 10px 20px rgba(245, 124, 0, 0.3);
}

.cta-button:hover { transform: translateY(-3px); box-shadow: 0 15px 25px rgba(245, 124, 0, 0.4); }

.section-padding { padding: 80px 0; }

.bg-gray { background-color: var(--gray); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }

.card {
    background: var(--white); padding: 40px; border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05); border: 1px solid rgba(0,0,0,0.05);
}

.card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

.card h2 { color: var(--primary); margin-top: 0; font-size: 1.6rem; }

footer { background: #2d3436; color: #dfe6e9; padding: 60px 0 30px; text-align: center; }

footer p { opacity: 0.7; font-size: 0.9rem; margin-top: 40px; border-top: 1px solid #454d4f; padding-top: 20px; }

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    nav { flex-direction: column; gap: 20px; }
}