/* Modern Fleet Management Design System */
:root {
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --secondary: #f97316;
    --success: #10b981;
    --dark: #111827;
    --red: #dc2626;
    --black: #000000;
    --gray-50: #f9fafb;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-900: #111827;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Brand Colors */
.brand-b {
    color: var(--red);
    font-weight: 800;
}

.brand-m {
    color: var(--black);
    font-weight: 800;
}

.brand-m-white {
    color: white;
    font-weight: 800;
}

.brand-z {
    color: var(--red);
    font-weight: 800;
}

.brand-text {
    font-weight: 700;
}

/* Navbar */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.navbar-brand i {
    color: var(--red);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.navbar-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.navbar-link:hover {
    color: #f59e0b;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    vertical-align: middle;
}

.btn i {
    display: inline-flex;
    align-items: center;
}

.btn-primary {
    background: var(--red);
    color: white;
}

.btn-primary:hover {
    background: #b91c1c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--black);
    color: white;
}

.btn-secondary:hover {
    background: #1f2937;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline:hover {
    background: white;
    color: #f59e0b;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Grid System */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-title {
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.footer-text {
    color: #d1d5db;
    margin-bottom: 0.5rem;
}

.footer-list {
    list-style: none;
}

.footer-list li {
    margin-bottom: 0.5rem;
}

.footer-link {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-link:hover {
    color: #f59e0b;
}

.footer-divider {
    border: none;
    border-top: 1px solid #374151;
    margin: 2rem 0 1rem;
}

.footer-bottom {
    text-align: center;
    color: #d1d5db;
    padding: 1rem 0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .navbar-menu {
        flex-direction: column;
        gap: 1rem;
    }
}