:root {
    --opsunity-primary: #2c3e50;
    --opsunity-hover: #1a252f;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9 !important;
    color: #333;
}
.navbar {
    background-color: #343a40;
}
.navbar-brand {
    font-weight: bold;
}
header {
    background: linear-gradient(to right, #2c3e50, #4ca1af);
    color: white;
    padding: 4rem 1rem;
    text-align: center;
}
header h1 {
    font-size: 2.8rem;
    font-weight: 700;
}
header p {
    font-size: 1.25rem;
    opacity: 0.9;
}
section {
    padding: 3rem 1rem;
}
.feature-box {
    background: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: 0.3s;
}
.feature-box:hover {
    transform: translateY(-5px);
}
footer {
    background-color: #343a40;
    color: white;
    text-align: center;
    padding: 1rem;
}

.card-header {
    background-color: #343a40 !important;
}

.btn-primary {
    background-color: var(--opsunity-primary);
    border: none;
    font-weight: 600;
    transition: 0.2s ease;
}

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

.card {
    border-radius: 12px;
}

.dropdown-menu {
    font-size: 0.95rem;
    border-radius: 6px;
}

.dropdown-menu a {
    color: #2c3e50;
    font-weight: 500;
}

.form-label.required::after {
    content: " *";
    color: #dc3545;
}