body {
    font-family: 'Inter', 'Segoe UI', Roboto, sans-serif;
    color: #2c3e50;
    background-color: #f8f9fa;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: #1c2833;
}

a {
    color: #4a90e2;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover, a:focus {
    color: #2a6ebd;
    text-decoration: underline;
}

.btn-primary {
    background-color: #4a90e2;
    border-color: #4a90e2;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.btn-primary:hover, .btn-primary:focus {
    background-color: #2a6ebd;
    border-color: #2a6ebd;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.dropzone {
    border: 2px dashed #dee2e6;
    transition: all 0.3s;
    cursor: pointer;
}
.dropzone:hover,
.dropzone.active {
    border-color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.05);
}
.fade-in {
    animation: fadeIn 0.5s;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.navbar {
    background: #ffffff !important;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar-brand, .navbar .nav-link {
    color: #2c3e50 !important;
}

.navbar .nav-link:hover {
    color: #4a90e2 !important;
}
.navbar-light .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(44,62,80, 0.8)' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

#passwordStrength small {
    font-size: 0.875rem;
    line-height: 1.5;
}

#passwordStrength i {
    margin-right: 5px;
}

.progress {
    background-color: #e9ecef;
}

.progress-bar {
    transition: width 0.3s ease, background-color 0.3s ease;
}