body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    padding: 1.5rem 3rem;
    border-bottom: none;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--text-color);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
    gap: 2rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.highlight {
    background: linear-gradient(90deg, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: 50px;
}

/* Hero Visual Animation */
.hero-visual {
    flex: 1;
    height: 400px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.floating-icon {
    position: absolute;
    font-size: 4rem;
    color: var(--text-color);
    opacity: 0.8;
    animation: float 6s ease-in-out infinite;
}

.i1 { top: 20%; left: 20%; animation-delay: 0s; font-size: 3rem; opacity: 0.5; }
.i2 { top: 40%; right: 20%; animation-delay: 2s; font-size: 5rem; }
.i3 { bottom: 20%; left: 40%; animation-delay: 4s; font-size: 3.5rem; opacity: 0.6; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    background: var(--hover-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.feature-icon { font-size: 2.5rem; margin-bottom: 1rem; color: var(--text-color); }

/* Footer */
footer { text-align: center; padding: 3rem 1rem; border-top: 1px solid var(--border-color); margin-top: auto; }
.footer-links { display: flex; justify-content: center; gap: 2rem; margin-bottom: 1rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--text-color); }

/* MOBILE RESPONSIVENESS */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        padding: 1rem 0;
        text-align: center;
        gap: 2rem;
    }

    .hero-content {
        max-width: 100%;
    }

    h1 {
        font-size: 2.2rem;
    }

    .hero-visual {
        width: 100%;
        height: 250px;
        order: -1; /* Show visual on top for mobile */
    }

    /* Adjust floating icons for smaller screens */
    .i1 { left: 10%; top: 10%; font-size: 2.5rem; }
    .i2 { right: 10%; top: 30%; font-size: 4rem; }
    .i3 { left: 35%; bottom: 10%; font-size: 3rem; }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}