:root {
    --primary: #0052cc;
    --primary-soft: #eef4ff;
    --success: #2ecc71;
    --text-main: #111827;
    --text-muted: #4b5563;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --radius-lg: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: #fff; color: var(--text-main); line-height: 1.5; -webkit-font-smoothing: antialiased; }

/* NAVBAR */
.navbar { 
    background: #fff; 
    border-bottom: 2px solid var(--border); 
    padding: 1.2rem 40px;
    position: sticky; 
    top: 0; 
    z-index: 1000; 
}
.nav-wrapper { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 1400px; margin: 0 auto; }

.nav-section { flex: 1; display: flex; align-items: center; }
.nav-left { justify-content: flex-start; }
.nav-center { justify-content: center; }
.nav-right { justify-content: flex-end; }

/* LOGO RESPONSIVE */
.logo { 
    display: flex; 
    align-items: center; 
    text-decoration: none; 
    font-size: 1.7rem; 
    font-weight: 900; 
    color: var(--primary); 
    letter-spacing: -1px;
}
.logo::before { 
    content: ''; 
    width: 10px; height: 28px; 
    background: var(--primary); 
    border-radius: 3px; margin-right: 14px; 
    box-shadow: 12px -8px 0 0 var(--success); 
}
.logo span { color: var(--text-main); font-weight: 500; }

.nav-menu { display: flex; list-style: none; gap: 40px; }
.nav-menu a { 
    text-decoration: none; 
    color: var(--text-main); 
    font-weight: 600; 
    font-size: 1.05rem; 
    padding: 15px 0; 
}
.nav-menu a:hover { color: var(--primary); }

/* DROPDOWN */
.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    min-width: 700px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px;
}
.dropdown:hover .dropdown-content { display: block; }
.dropdown-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.drop-label { font-size: 0.8rem; font-weight: 900; color: var(--primary); margin-bottom: 15px; display: block; letter-spacing: 1px; }
.dropdown-content a { padding: 8px 0; display: block; font-weight: 500; text-decoration: none; color: var(--text-main); }
.dropdown-content a:hover { color: var(--primary); }

/* HERO */
.hero { padding: 120px 20px 80px; background: radial-gradient(circle at top, var(--bg-alt) 0%, #ffffff 80%); text-align: center; }
.hero h1 { 
    font-size: clamp(2.8rem, 7vw, 4.5rem); 
    font-weight: 900; 
    line-height: 1.05; 
    letter-spacing: -2px;
    margin-bottom: 25px;
}
.hero p { font-size: 1.4rem; color: var(--text-muted); max-width: 700px; margin: 0 auto; font-weight: 500; }
.badge { background: var(--primary-soft); color: var(--primary); padding: 8px 20px; border-radius: 50px; font-weight: 800; font-size: 0.85rem; margin-bottom: 30px; display: inline-block; }

/* GRID */
.categories { padding: 20px 20px 100px; max-width: 1300px; margin: 0 auto; }
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.cat-card { 
    background: #fff; border: 2px solid var(--border); padding: 24px; border-radius: var(--radius-lg); 
    text-decoration: none; display: flex; align-items: center; gap: 20px; transition: all 0.3s ease;
}
.cat-card:hover { border-color: var(--primary); transform: translateY(-5px); box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1); }
.cat-content h3 { font-size: 1.2rem; font-weight: 800; color: var(--text-main); }
.icon-box { width: 56px; height: 56px; background: var(--primary-soft); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; color: var(--primary); flex-shrink: 0; }

/* FOOTER */
.main-footer { padding: 80px 20px; border-top: 2px solid var(--border); text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 40px; margin-bottom: 30px; }
.footer-links a { text-decoration: none; color: var(--text-main); font-weight: 600; }

/* MEDIA QUERIES */
@media (max-width: 1024px) {
    .logo { font-size: 1.4rem; }
    .logo::before { height: 22px; width: 8px; }
}
@media (max-width: 768px) {
    .nav-center { display: none; }
    .logo { font-size: 1.2rem; }
    .logo::before { height: 18px; width: 7px; margin-right: 10px; }
    .hero h1 { font-size: 2.5rem; }
    .category-grid { grid-template-columns: 1fr; }
}