/* Mobile-first responsive design */

/* Base styles */
:root {
    --primary-color: #0066cc;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --border-radius: 8px;
    --transition-speed: 0.3s;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Mobile-first typography */
body {
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Optimize for mobile touch */
button,
.btn {
    min-height: 44px;
    min-width: 44px;
    touch-action: manipulation;
}

/* Alpine.js cloak */
[x-cloak] {
    display: none !important;
}

/* Card animations */
.card {
    transition: transform var(--transition-speed) ease, 
                box-shadow var(--transition-speed) ease;
    will-change: transform;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Button hover effects */
.btn {
    position: relative;
    overflow: hidden;
    transition: all var(--transition-speed) ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* Feedback buttons */
.btn-group .btn {
    transition: all var(--transition-speed) ease;
}

.btn-group .btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-group .btn-outline-success:hover:not(:disabled) {
    transform: scale(1.1);
}

.btn-group .btn-outline-danger:hover:not(:disabled) {
    transform: scale(1.1);
}

/* Result cards */
.result-card {
    position: relative;
    animation: slideInUp 0.4s ease;
}

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

/* Loading spinner */
.fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Badge styles */
.badge {
    font-weight: 500;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* Form improvements */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25);
}

.form-control-lg {
    font-size: 1.125rem;
    padding: 0.75rem 1rem;
}

/* History list */
.regeneration-history {
    max-height: 150px;
    overflow-y: auto;
}

/* Mobile optimizations */
@media (max-width: 576px) {
    /* Stack columns on mobile */
    .row > [class*='col-'] {
        margin-bottom: 0.5rem;
    }
    
    /* Full width buttons on mobile */
    .btn-group {
        display: flex;
        width: 100%;
    }
    
    .btn-group .btn {
        flex: 1;
    }
    
    /* Reduce padding on mobile */
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    /* Stack badges vertically on mobile */
    .badge {
        display: inline-block;
        margin-bottom: 0.25rem;
    }
    
    /* Optimize font sizes */
    h1 {
        font-size: 1.75rem;
    }
    
    h5 {
        font-size: 1.125rem;
    }
    
    .h5 {
        font-size: 1.125rem;
    }
}

/* Tablet optimizations */
@media (min-width: 577px) and (max-width: 768px) {
    .container {
        max-width: 720px;
    }
}

/* Desktop enhancements */
@media (min-width: 992px) {
    /* Add hover effects only on desktop */
    .card {
        cursor: pointer;
    }
    
    /* Larger click targets on desktop */
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1.25rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
    }
    
    body {
        background-color: var(--bg-color);
        color: var(--text-color);
    }
    
    .card {
        background-color: #2a2a2a;
        border-color: #3a3a3a;
    }
    
    .form-control,
    .form-select {
        background-color: #2a2a2a;
        border-color: #3a3a3a;
        color: var(--text-color);
    }
    
    .form-control:focus,
    .form-select:focus {
        background-color: #2a2a2a;
        border-color: var(--primary-color);
        color: var(--text-color);
    }
}

/* Performance optimizations */
.card,
.btn {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Accessibility */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Print styles */
@media print {
    .navbar,
    footer,
    .btn-group,
    .alert {
        display: none !important;
    }
    
    .card {
        page-break-inside: avoid;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}