/* GLOBAL */
body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(180deg, #E8F1FA, #D6E6F5);
    color: #1A1A1A;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* HEADER */
header {
    background: linear-gradient(90deg, #003A70, #0072CE);
    padding: 15px 0;
    color: white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

header::after {
    content: "";
    display: block;
    height: 4px;
    background: #FFCC00;
}

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

.logo-img {
    height: 70px;
}

/* NAVIGATION */
nav {
    display: flex;
    gap: 20px;
}

nav a {
    color: white;
    font-weight: 600;
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 4px;
    transition: 0.3s;
}

nav a:hover {
    background: rgba(255,255,255,0.2);
}

/* HAMBURGER */
.hamburger {
    display: none;
    font-size: 32px;
    cursor: pointer;
}

/* HERO */
.hero {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.3)),
                url('solar-panels.jpg') center/cover no-repeat;
    padding: 140px 20px;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
}

.cta-btn {
    background: #FFCC00;
    color: #003A70;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    text-decoration: none;
    transition: 0.3s;
}

.cta-btn:hover {
    background: #e6b800;
}

/* FEATURES */
.features {
    padding: 60px 0;
    text-align: center;
}

.feature-grid {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.feature-box {
    background: white;
    border-top: 5px solid #4CAF50;
    border-radius: 10px;
    padding: 25px;
    width: 300px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: 0.3s;
}

.feature-box:hover {
    transform: translateY(-5px);
}

/* GALLERY */
.gallery-section {
    padding: 60px 0;
    text-align: center;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.gallery-grid img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: 0.3s;
}

.gallery-grid img:hover {
    transform: scale(1.03);
}

/* CONTACT */
.contact-section {
    padding: 60px 0;
}

.contact-form {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

.contact-form button {
    background: #0072CE;
    color: white;
    padding: 14px;
    border-radius: 6px;
    font-size: 18px;
    border: none;
    cursor: pointer;
    transition: 0.3s;
}

.contact-form button:hover {
    background: #003A70;
}

/* FOOTER */
footer {
    background: #003A70;
    color: white;
    padding: 25px;
    text-align: center;
    font-size: 14px;
}

/* MOBILE */
@media (max-width: 768px) {
    .hamburger { display: block; }
    nav { display: none; flex-direction: column; }
    nav.open { display: flex; }
}