/* Base Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
}

.hero-section h1 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Cards */
.feature-card {
    border: none;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Feature Icons */
.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Forms */
.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-1px);
}

/* Alerts */
.alert {
    border: none;
    border-radius: 8px;
}

/* Footer */
footer {
    margin-top: auto;
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }
}

/* Form error styling */
.invalid-feedback {
    display: block;
}

.alert-danger {
    border: none;
    border-radius: 8px;
    background-color: #f8d7da;
    color: #721c24;
}

.form-control.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Focus states for better accessibility */
.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}