/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.tagline {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 300;
}

.nav {
    position: relative;
}

.nav-link {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.75rem 1rem;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: #f8f9ff;
    color: #667eea;
}

/* Main Content */
.main {
    padding: 2rem 0;
}

/* Info Sections */
.info-section {
    background: white;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

.info-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.android-section .section-header {
    background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
    color: white;
}

.warning-section .section-header {
    background: linear-gradient(135deg, #fdcb6e 0%, #e17055 100%);
    color: white;
}

.update-section .section-header {
    background: linear-gradient(135deg, #a29bfe 0%, #6c5ce7 100%);
    color: white;
}

.section-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toggle-btn {
    background: none;
    border: none;
    color: inherit;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.section-content {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.section-content.active {
    padding: 1.5rem;
    max-height: 200px;
}

.section-content p {
    margin-bottom: 1rem;
    color: #666;
}

.download-btn {
    background: linear-gradient(135deg, #00b894 0%, #00a085 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.4);
}

/* Service Description */
.service-description {
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.service-description p {
    font-size: 1.1rem;
    color: #555;
    line-height: 1.8;
}

.service-description strong {
    color: #667eea;
    font-weight: 600;
}

/* Important Warning */
.important-warning {
    background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    box-shadow: 0 8px 32px rgba(116, 185, 255, 0.3);
}

.important-warning i {
    font-size: 1.5rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.important-warning p {
    font-size: 1rem;
    line-height: 1.6;
}

/* Subscription Form */
.subscription-form {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.subscription-form h2 {
    text-align: center;
    color: #333;
    margin-bottom: 2rem;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.input-group {
    position: relative;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid #e1e8ed;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fafbfc;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-group i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #667eea;
    font-size: 1.1rem;
}

.pay-btn {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1.25rem 2rem;
    border-radius: 16px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.3);
    margin-top: 1rem;
}

.pay-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
}

.pay-btn:active {
    transform: translateY(-1px);
}

.navigation-link {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e1e8ed;
}

.navigation-link .link {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.navigation-link .link:hover {
    color: #764ba2;
    text-decoration: underline;
}

/* Footer */
.footer {
    background: #2d3436;
    color: white;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-info {
    color: #667eea;
    font-weight: 500;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.version {
    color: #b2bec3;
    font-size: 0.9rem;
}

.whatsapp-btn {
    background: #25d366;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .main {
        padding: 1rem 0;
    }
    
    .subscription-form {
        padding: 1.5rem;
        margin: 0 -5px;
    }
    
    .subscription-form h2 {
        font-size: 1.5rem;
    }
    
    .form-group input,
    .form-group select {
        padding: 0.875rem 0.875rem 0.875rem 2.5rem;
    }
    
    .input-group i {
        left: 0.875rem;
    }
    
    .pay-btn {
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .important-warning {
        flex-direction: column;
        text-align: center;
    }
    
    .important-warning i {
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.3rem;
    }
    
    .subscription-form {
        padding: 1rem;
    }
    
    .section-header {
        padding: 1rem;
    }
    
    .section-content.active {
        padding: 1rem;
    }
    
    .service-description {
        padding: 1rem;
    }
    
    .important-warning {
        padding: 1rem;
    }
}

/* Loading Animation */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading .pay-btn {
    position: relative;
}

.loading .pay-btn::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Package Options Styling */
#package option {
    padding: 0.5rem;
}

/* Smooth Transitions */
* {
    transition: all 0.3s ease;
}

/* Focus States for Accessibility */
input:focus,
select:focus,
button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Hover Effects */
.info-section:hover .section-header {
    transform: translateY(-1px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #764ba2;
}

/* Floating WhatsApp Contact Button */
.floating-whatsapp-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.8rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    overflow: hidden;
}

.floating-whatsapp-btn:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
    background: #128c7e;
}

.floating-whatsapp-btn:active {
    transform: translateY(-1px) scale(1.05);
}

.whatsapp-text {
    position: absolute;
    right: 70px;
    background: #25d366;
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: all 0.3s ease;
    pointer-events: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.whatsapp-text::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-left-color: #25d366;
}

.floating-whatsapp-btn:hover .whatsapp-text {
    opacity: 1;
    transform: translateX(0);
}

/* Pulse animation for the button */
.floating-whatsapp-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    background: #25d366;
    animation: pulse 2s infinite;
    z-index: -1;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

/* Responsive adjustments for mobile */
@media (max-width: 768px) {
    .floating-whatsapp-btn {
        bottom: 15px;
        right: 15px;
        width: 55px;
        height: 55px;
        font-size: 1.6rem;
    }
    
    .whatsapp-text {
        right: 65px;
        font-size: 0.8rem;
        padding: 6px 10px;
    }
}

@media (max-width: 480px) {
    .floating-whatsapp-btn {
        bottom: 10px;
        right: 10px;
        width: 50px;
        height: 50px;
        font-size: 1.4rem;
    }
    
    .whatsapp-text {
        right: 60px;
        font-size: 0.75rem;
        padding: 5px 8px;
    }
}