/* ... (Keep your top variables and body styles the same) ... */

:root {
    --bg-color: #f8f8f8;
    --card-bg: #ffffff;
    --text-color: #1a1a1a;
    --accent-color: #000000;
    --gray-text: #555555;
    --spacing: 2rem;
    --shadow: 0 4px 20px rgba(0,0,0,0.06);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    font-size: 18px;
    -webkit-font-smoothing: antialiased;
}

/* Header */
header {
    position: absolute;
    top: 0; width: 100%; z-index: 10;
    padding: 2rem 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent);
}
.header-inner { display: flex; justify-content: center; }
nav a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    margin: 0 1.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: color 0.3s;
}
nav a:hover, nav a.active { color: #ffffff; text-shadow: 0 0 10px rgba(255,255,255,0.5); }

/* Hero - UPDATED TO .AVIF */
.hero-section {
    height: 70vh;
    background-image: url('hero.avif'); /* <--- UPDATED HERE */
    background-size: cover;
    background-position: center;
    display: flex; align-items: center; justify-content: center;
    text-align: center; color: white; position: relative;
}
.hero-section::after {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4); z-index: 1;
}
.hero-content { position: relative; z-index: 2; padding: 0 1rem; max-width: 800px; }

h1 {
    font-family: 'Playfair Display', serif;
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}
h2 {
    font-family: 'Inter', sans-serif;
    font-size: 1.4rem;
    font-weight: 400;
    opacity: 0.9;
    letter-spacing: 0.5px;
}

/* ... (The rest of the CSS remains exactly the same) ... */
.content-wrapper {
    max-width: 900px;
    margin: -4rem auto 0;
    padding: 4rem;
    background: var(--card-bg);
    border-radius: 4px;
    position: relative;
    z-index: 3;
    box-shadow: var(--shadow);
}

.intro-text p.lead {
    font-size: 1.4rem;
    font-weight: 500;
    color: #111;
    margin-bottom: 1.5rem;
    font-family: 'Playfair Display', serif;
}
.text-link {
    color: inherit;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
    font-weight: 600;
}
.text-link:hover { color: #555; }

blockquote {
    border-left: 4px solid #000;
    padding-left: 2rem;
    font-family: 'Playfair Display', serif;
    font-style: italic;
    font-size: 1.6rem;
    line-height: 1.4;
    margin: 3rem 0;
    color: #222;
}

.divider { height: 1px; background: #eee; margin: 3rem 0; width: 100%; }

h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    margin-bottom: 2rem;
    text-align: center;
}
h4 {
    font-size: 1.1rem; text-transform: uppercase;
    letter-spacing: 1px; margin-bottom: 0.8rem;
    font-weight: 700; color: #000;
}

/* Grid */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
.profit-card {
    background: #fff; padding: 2rem;
    border: 1px solid #f0f0f0;
    transition: transform 0.2s;
}
.profit-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #ddd; }

/* About */
.about-section { max-width: 900px; margin: 3rem auto; padding: 0 1rem; }
.about-container {
    display: grid; grid-template-columns: 1.5fr 1fr; gap: 3rem;
    align-items: center; background: #fff; padding: 3rem;
    border-radius: 4px; box-shadow: var(--shadow);
}
.about-img img {
    width: 100%; border-radius: 2px;
    filter: grayscale(100%); transition: filter 0.3s;
}
.about-img img:hover { filter: grayscale(0%); }

/* Ecosystem */
.ecosystem-section { max-width: 1100px; margin: 4rem auto; text-align: center; padding: 0 1rem; }
.section-subtitle { color: #666; margin-bottom: 2rem; margin-top: -1rem; font-style: italic; }

.eco-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}
.eco-card {
    background: #fff;
    padding: 2rem;
    width: calc(33.333% - 1.5rem); 
    min-width: 280px;
    text-decoration: none;
    color: var(--text-color);
    border: 1px solid #eee;
    border-radius: 4px;
    transition: all 0.2s;
}
.eco-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #000; }
.eco-title { display: block; font-family: 'Playfair Display', serif; font-size: 1.2rem; font-weight: 700; }
.eco-desc { display: block; font-size: 0.9rem; color: var(--gray-text); margin-top: 0.5rem; }

footer { text-align: center; padding: 3rem 0; color: #888; font-size: 0.9rem; background: #fff; border-top: 1px solid #eee; }

@media (max-width: 768px) {
    h1 { font-size: 3rem; }
    .content-wrapper { margin-top: 0; padding: 2rem; border-radius: 0; box-shadow: none; }
    .grid-2, .about-container { grid-template-columns: 1fr; gap: 2rem; }
    .eco-card { width: 100%; }
    .hero-section { height: 60vh; }
}