/* --- style.css --- */
:root {
    --primary: #FF9800; /* Solar Orange */
    --primary-dark: #E65100;
    --secondary: #2E7D32; /* Eco Green */
    --dark: #212121;
    --light: #F5F5F5;
    --white: #ffffff;
    --border: #e0e0e0;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', sans-serif; line-height: 1.6; color: var(--dark); background: var(--light); }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* --- HEADER & NAV --- */
header { background: var(--white); box-shadow: 0 2px 5px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
.navbar { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; max-width: 1200px; margin: 0 auto; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--secondary); text-transform: uppercase; }
.logo span { color: var(--primary); }

.nav-links { display: flex; gap: 20px; }
.nav-links a { font-weight: 600; transition: 0.3s; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.menu-toggle { display: none; font-size: 1.8rem; cursor: pointer; }

/* --- HERO SECTION --- */
.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://images.unsplash.com/photo-1509391366360-2e959784a276?auto=format&fit=crop&w=1950&q=80');
    background-size: cover; background-position: center; height: 80vh;
    display: flex; align-items: center; justify-content: center; text-align: center; color: var(--white); padding: 0 1rem;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.btn { background: var(--primary); color: var(--white); padding: 0.8rem 1.5rem; border-radius: 5px; font-weight: bold; display: inline-block; transition: 0.3s; border: none; cursor: pointer; }
.btn:hover { background: var(--primary-dark); }

/* --- SECTIONS & CARDS --- */
.container { max-width: 1100px; margin: 0 auto; padding: 4rem 1.5rem; }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 { color: var(--secondary); font-size: 2rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.card { background: var(--white); padding: 2rem; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }

/* --- FORMS --- */
.form-wrapper { background: var(--white); padding: 2rem; border-radius: 8px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); margin-bottom: 3rem; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 0.8rem; border: 1px solid var(--border); border-radius: 4px; font-size: 1rem;
}
.form-header { background: var(--secondary); color: var(--white); padding: 1rem; border-radius: 8px 8px 0 0; margin: -2rem -2rem 2rem -2rem; text-align: center; }
.alert-box { background: #ffebee; color: #c62828; padding: 1rem; border-radius: 5px; margin-bottom: 2rem; border: 1px solid #ffcdd2; }

/* --- FOOTER --- */
footer { background: var(--dark); color: var(--white); text-align: center; padding: 2rem; margin-top: auto; }

/* --- MOBILE RESPONSIVE --- */
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .nav-links {
        display: none; flex-direction: column; width: 100%; position: absolute; top: 70px; left: 0; background: var(--white);
        box-shadow: 0 5px 10px rgba(0,0,0,0.1); padding: 1rem 0;
    }
    .nav-links.active { display: flex; }
    .nav-links li { text-align: center; margin: 10px 0; }
    .hero h1 { font-size: 1.8rem; }
    .container { padding: 2rem 1rem; }
}