/* Custom styles for App4E.com website */

html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #667eea;
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin-bottom: 60px;
}

/* Custom gradient background */
.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Card hover effects */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

/* Navigation bar customizations */
.navbar-brand {
    font-weight: bold;
    color: #667eea !important;
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 5px;
}

.navbar-nav .nav-link:hover {
    color: #667eea !important;
}

/* Footer styling */
.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    white-space: nowrap;
    line-height: 60px;
}

/* Custom buttons */
.btn-primary {
    background-color: #667eea;
    border-color: #667eea;
}

.btn-primary:hover {
    background-color: #5a6fd8;
    border-color: #5a6fd8;
}

.btn-outline-primary {
    color: #667eea;
    border-color: #667eea;
}

.btn-outline-primary:hover {
    background-color: #667eea;
    border-color: #667eea;
}

/* Hero section styling */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    margin-bottom: 60px;
}

.hero-section h1, .hero-section .lead {
    text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

/* Feature card styling */
.feature-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* Section headers */
.section-header {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 25px;
}

.section-header:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: #667eea;
    border-radius: 3px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
    }
    
    .navbar-nav {
        text-align: center;
    }
    
    .feature-card {
        margin-bottom: 20px;
    }
}

/* Animation for interactive elements */
.animate-on-hover {
    transition: all 0.3s ease;
}

.animate-on-hover:hover {
    transform: scale(1.05);
}

/* Loading animation */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Accordion styling */
.accordion-button:not(.collapsed) {
    color: #667eea;
    background-color: #f8f9ff;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23667eea'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

/* Table styling */
.table th {
    border-top: none;
    font-weight: 600;
}

.table-hover tbody tr:hover {
    background-color: rgba(102, 126, 234, 0.05);
}

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

/* Alert customizations */
.alert-primary {
    background-color: #e6e9fc;
    border-color: #d3d8f7;
    color: #3d4db7;
}

/* Badge customizations */
.badge.bg-primary {
    background-color: #667eea;
}