/* Enhanced Custom Styles for Recharge Portal */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #48bb78;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Enhanced Page Styling */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #2d3748;
}

/* Enhanced Cards */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

/* Enhanced Buttons */
.btn {
    border-radius: 50px;
    font-weight: 600;
    padding: 0.75rem 2rem;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-success {
    background: var(--gradient-accent);
    box-shadow: var(--shadow-light);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Enhanced Form Elements */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid #e2e8f0;
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Enhanced Navigation */
.navbar {
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(102, 126, 234, 0.1);
}

.navbar-brand {
    font-weight: 800;
    color: var(--primary-color) !important;
}

.nav-link {
    font-weight: 600;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

/* Enhanced Sections */
.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Enhanced Text Elements */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    font-weight: 700;
}

p {
    line-height: 1.7;
    color: #4a5568;
}

/* Enhanced Lists */
ul li {
    margin-bottom: 0.5rem;
    color: #4a5568;
}

/* Enhanced Images */
img {
    border-radius: var(--border-radius);
    transition: var(--transition);
}

img:hover {
    transform: scale(1.02);
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.animate-on-scroll.active {
    opacity: 1;
    transform: translateY(0);
}

/* 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); }
}

/* Enhanced Footer */
footer {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    color: white;
    padding: 3rem 0 1rem;
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

footer a:hover {
    color: white;
    transform: translateX(5px);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .section {
        padding: 2rem 0;
    }
    
    .section-title h3 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
}