:root {
    --primary: #2d6a4f;
    --primary-dark: #1b4332;
    --accent: #d8f3dc;
    --text: #2b2d42;
    --light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0,0,0,0.05);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background-color: var(--white);
}

/* Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

.burger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.burger span {
    width: 25px;
    height: 3px;
    background-color: var(--text);
    transition: var(--transition);
}

/* Common Layout Elements */
.section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1558904541-efa8c3a30fc9?auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
    color: var(--white);
    padding: 8rem 2rem;
    text-align: center;
}

.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero p { font-size: 1.25rem; margin-bottom: 2rem; max-width: 600px; margin-left: auto; margin-right: auto; }

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover { background-color: var(--primary-dark); }

/* Grid Systems */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.05);
}

/* Portfolio & Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}
.gallery-item {
    background: var(--light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}
.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}
.gallery-info { padding: 1rem; }

/* Reviews */
.review-card {
    border-left: 4px solid var(--primary);
    background: var(--light);
}
.stars { color: #ffb703; margin-bottom: 0.5rem; }

/* Social Widget Mock */
.social-feed-mock {
    background: var(--light);
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 3rem;
}
.social-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}
.social-icon {
    width: 40px;
    height: 40px;
    background: #4267B2;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: inherit;
}

/* Footer */
footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 3rem 2rem;
    margin-top: 4rem;
}
.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}
.footer-section { min-width: 250px; }
.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.9rem;
}

/* Responsive Breakpoint (Mobile Friendly) */
@media (max-width: 768px) {
    .burger { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        gap: 1.5rem;
    }
    .nav-links.active { display: flex; }
    .hero h1 { font-size: 2rem; }
    .nav-container { padding: 1rem; }
}