:root { 
    --primary: #2d3436; --accent: #00b894; --bg: #f8f9fa; --white: #ffffff; 
    --dark: #1e272e; --card-shadow: rgba(0,0,0,0.04); --text-muted: #636e72;
}

[data-theme="dark"] {
    --primary: #dfe6e9; --bg: #1e272e; --white: #2d3436; 
    --dark: #000000; --card-shadow: rgba(0,0,0,0.3); --text-muted: #b2bec3;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; scroll-behavior: smooth; }
body { background: var(--bg); color: var(--primary); line-height: 1.6; overflow-x: hidden; transition: 0.3s; }

nav { background: var(--white); padding: 1rem 8%; display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 10px var(--card-shadow); }

.logo-container { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: 1; }
.logo-img { height: 40px; width: auto; border-radius: 5px; }
.logo-text { font-weight: 800; font-size: 1.4rem; color: var(--primary); }
.logo-text span { color: var(--accent); }

nav ul { display: flex; list-style: none; align-items: center; }
nav ul li { margin-left: 2rem; }
nav ul li a { text-decoration: none; color: var(--primary); font-weight: 600; font-size: 0.9rem; transition: 0.3s; }
nav ul li a:hover { color: var(--accent); }

.nav-controls { display: flex; align-items: center; gap: 1.5rem; }
#theme-toggle { cursor: pointer; font-size: 1.2rem; color: var(--primary); }
.menu-toggle { display: none; font-size: 1.5rem; cursor: pointer; color: var(--primary); }

footer { background: #1a1d20; color: #fff; padding: 4rem 2rem; text-align: center; margin-top: 3rem; border-radius: 20px 20px 0 0; }
.social-links { margin-bottom: 2rem; display: flex; justify-content: center; gap: 20px; }
.social-icon { width: 45px; height: 45px; background: #333; color: #fff !important; display: flex; align-items: center; justify-content: center; border-radius: 50%; text-decoration: none; transition: 0.3s; font-size: 1.2rem; }
.social-icon:hover { background: var(--accent); transform: translateY(-5px); }

.live-chat { position: fixed; bottom: 30px; right: 30px; background: #25D366; color: white !important; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 30px; box-shadow: 0 4px 15px rgba(0,0,0,0.2); z-index: 999; transition: 0.3s; text-decoration: none; }

/* MOBILE RESPONSIVE QUERIES */
@media (max-width: 768px) {
    nav { padding: 1rem 5%; }
    .menu-toggle { display: block; order: 2; }
    nav ul { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; width: 100%; background: var(--white); padding: 20px 0; box-shadow: 0 5px 10px rgba(0,0,0,0.1); }
    nav ul.active { display: flex; }
    nav ul li { margin: 15px 0; text-align: center; width: 100%; margin-left: 0; }

    .about-content { flex-direction: column-reverse !important; flex-wrap: nowrap !important; }
}