:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --dark-bg: #1a1a1a;
    --text-color: #333333;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    scroll-padding-top: 70px;
}

h1, h2, h3, h4, .navbar-brand {
    font-family: 'Montserrat', sans-serif;
    letter-spacing: -0.5px;
}

.navbar-brand span {
    color: var(--primary-color);
}

.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5)), 
                url('https://images.unsplash.com/photo-1590602847861-f357a9332bbc?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 12px 25px;
}

.card {
    transition: transform 0.3s ease-in-out;
}

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

section {
    padding: 80px 0;
}

footer {
    background-color: var(--dark-bg);
}

#contactForm .form-control {
    padding: 12px;
}

.placeholder-light::placeholder {
    color: #e0e0e0 !important;
    opacity: 1; /* Firefox */
}