/* QR Rapido Custom Theme */
:root {
    --qr-primary: #007BFF;
    --qr-secondary: #28A745;
    --qr-accent: #FF6B35;
    --qr-warning: #FFC107;
    --qr-success: #28A745;
    --qr-danger: #DC3545;
    --qr-dark: #343A40;
    --qr-light: #F8F9FA;
}

/* Global Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--qr-primary) 0%, #0056B3 100%);
}

/* Generation Timer Styles */
.generation-timer {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: #f8f9fa;
    border-radius: 20px;
    border: 2px solid var(--qr-primary);
    transition: all 0.3s ease;
}

.generation-timer.active {
    background: var(--qr-primary);
    color: white;
    animation: pulse 1.5s infinite;
}

/* Speed Badge Animation */
.speed-badge {
    animation: slideInRight 0.5s ease-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes slideInRight {
    from {
        transform: translateX(20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* QR Preview Placeholder */
.placeholder-qr {
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.placeholder-qr:hover {
    border-color: var(--qr-primary);
    background: #e3f2fd;
}

/* Logo and Branding */
.navbar-brand svg {
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.1));
    transition: transform 0.3s ease;
}

.navbar-brand:hover svg {
    transform: scale(1.05);
}

/* QR Preview Image */
#qr-preview img {
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
    max-width: 100%;
    height: auto;
}

#qr-preview img:hover {
    transform: scale(1.02);
}

/* Card Hover Effects */
.card {
    transition: all 0.3s ease;
    border-radius: 12px;
}

.card:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

/* Button Styles */
.btn-check:checked + .btn {
    background-color: var(--qr-primary);
    border-color: var(--qr-primary);
    color: white;
}

.btn-primary {
    background: linear-gradient(135deg, var(--qr-primary) 0%, #0056B3 100%);
    border: none;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056B3 0%, var(--qr-primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

/* Form Controls */
.form-control:focus,
.form-select:focus {
    border-color: var(--qr-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-control-lg {
    border-radius: 8px;
}

/* Speed Statistics Cards */
.card.border-success {
    border-color: var(--qr-success) !important;
}

.card.border-primary {
    border-color: var(--qr-primary) !important;
}

.card.border-warning {
    border-color: var(--qr-warning) !important;
}

/* Generation Stats Animation */
.generation-stats {
    animation: slideInRight 0.5s ease-out;
}

/* Ad Container Styles */
.ad-container {
    text-align: center;
    margin: 20px 0;
    padding: 15px;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    position: relative;
}

.ad-label {
    font-size: 11px;
    color: #6c757d;
    margin-bottom: 8px;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.ad-free-notice {
    text-align: center;
    border-left: 4px solid var(--qr-success);
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border-radius: 8px;
}

.ad-free-notice .fas {
    color: var(--qr-warning);
}

/* Loading Animations */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Progress Bar for QR Generation */
.progress {
    height: 4px;
    border-radius: 2px;
    background-color: #e9ecef;
}

.progress-bar {
    background: linear-gradient(90deg, var(--qr-primary), var(--qr-accent));
}

/* Speed Tips */
.list-unstyled li {
    padding: 0.25rem 0;
    transition: all 0.2s ease;
}

.list-unstyled li:hover {
    padding-left: 0.5rem;
    color: var(--qr-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .generation-timer {
        font-size: 0.875rem;
        padding: 0.2rem 0.5rem;
    }
    
    .speed-badge .badge {
        font-size: 0.75rem;
    }
    
    .placeholder-qr {
        padding: 2rem 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .ad-container {
        margin: 10px 0;
        padding: 10px;
    }
}

/* Premium Features Styling */
.premium-feature {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left: 4px solid var(--qr-warning);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.premium-badge {
    background: linear-gradient(135deg, var(--qr-warning) 0%, #f39c12 100%);
    color: var(--qr-dark);
    border-radius: 20px;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Accordion Customization */
.accordion-button {
    background: var(--qr-light);
    border: none;
    border-radius: 8px !important;
}

.accordion-button:not(.collapsed) {
    background: var(--qr-primary);
    color: white;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Footer Styling */
footer {
    background: linear-gradient(135deg, var(--qr-dark) 0%, #2c3e50 100%);
}

footer a {
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--qr-primary) !important;
}

/* Language Selector */
.dropdown-toggle::after {
    margin-left: 0.5rem;
}

.dropdown-menu {
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: none;
}

.dropdown-item {
    transition: all 0.2s ease;
    border-radius: 4px;
    margin: 2px 4px;
}

.dropdown-item:hover {
    background: var(--qr-primary);
    color: white;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--qr-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--qr-primary) 0%, var(--qr-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-custom {
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.15);
}

.border-gradient {
    border: 2px solid;
    border-image: linear-gradient(135deg, var(--qr-primary) 0%, var(--qr-accent) 100%) 1;
}

/* Print Styles */
@media print {
    .ad-container,
    .btn,
    .navbar,
    footer {
        display: none !important;
    }
    
    #qr-preview img {
        max-width: 300px;
        max-height: 300px;
    }
}

/* Dark Mode Support (future enhancement) */
@media (prefers-color-scheme: dark) {
    .card {
        background-color: #2d3748;
        color: #e2e8f0;
    }
    
    .placeholder-qr {
        background: #4a5568;
        border-color: #718096;
    }
    
    .form-control,
    .form-select {
        background-color: #4a5568;
        border-color: #718096;
        color: #e2e8f0;
    }
}