/* Professional Mobile App Enhancement */

/* Modern Mobile Design System */
:root {
    /* Professional Color Palette */
    --primary-brand: #667eea;
    --primary-dark: #5a6fd8;
    --secondary-brand: #764ba2;
    --accent-success: #10d876;
    --accent-warning: #ffbe0b;
    --accent-danger: #fb8500;
    --accent-info: #4cc9f0;
    
    /* Mobile-First Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #10d876 0%, #06ffa5 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Dark Theme Mobile Colors */
    --mobile-bg-primary: #0a0e27;
    --mobile-bg-secondary: #141b3c;
    --mobile-bg-card: #1e2749;
    --mobile-surface: #252d54;
    --mobile-text-primary: #ffffff;
    --mobile-text-secondary: #b8bcc8;
    --mobile-text-muted: #8892b0;
    --mobile-border: #2d3561;
    --mobile-divider: rgba(255, 255, 255, 0.1);
    
    /* Professional Shadows */
    --shadow-mobile-card: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-mobile-floating: 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-mobile-active: 0 2px 12px rgba(102, 126, 234, 0.3);
    
    /* Modern Radius System */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    
    /* Professional Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Mobile Spacing System */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Animation System */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Mobile Enhancements */
* {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

body {
    background: var(--mobile-bg-primary);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--mobile-text-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Professional Mobile Navigation */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(20, 27, 60, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--mobile-border);
    padding: var(--spacing-sm) 0;
    transform: translateY(0);
    transition: transform var(--transition-base);
}

.mobile-nav.hidden {
    transform: translateY(100%);
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--mobile-text-muted);
    text-decoration: none;
    min-width: 60px;
    transition: all var(--transition-base);
    position: relative;
}

.mobile-nav-item:hover,
.mobile-nav-item.active {
    color: var(--primary-brand);
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.mobile-nav-item i {
    font-size: 1.2rem;
    margin-bottom: 2px;
}

.mobile-nav-item span {
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.mobile-nav-item .badge {
    position: absolute;
    top: 4px;
    right: 8px;
    min-width: 18px;
    height: 18px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    border-radius: 50%;
}

/* Professional Card System */
.mobile-card {
    background: var(--mobile-bg-card);
    border: 1px solid var(--mobile-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-mobile-card);
    overflow: hidden;
    transition: all var(--transition-base);
}

.mobile-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-mobile-floating);
    border-color: rgba(102, 126, 234, 0.3);
}

.mobile-card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--mobile-divider);
    background: rgba(255, 255, 255, 0.02);
}

.mobile-card-body {
    padding: var(--spacing-lg);
}

.mobile-card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--mobile-divider);
    background: rgba(255, 255, 255, 0.02);
}

/* Modern Button System */
.btn-mobile {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    min-height: 48px; /* Touch-friendly */
}

.btn-mobile:active {
    transform: scale(0.98);
}

.btn-mobile-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-mobile-card);
}

.btn-mobile-primary:hover {
    box-shadow: var(--shadow-mobile-active);
    transform: translateY(-1px);
}

.btn-mobile-secondary {
    background: var(--mobile-bg-card);
    color: var(--mobile-text-primary);
    border: 1px solid var(--mobile-border);
}

.btn-mobile-ghost {
    background: transparent;
    color: var(--mobile-text-secondary);
    border: 1px solid var(--mobile-border);
}

.btn-mobile-success {
    background: var(--gradient-success);
    color: white;
}

/* Professional Input System */
.input-mobile {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--mobile-bg-card);
    border: 1px solid var(--mobile-border);
    border-radius: var(--radius-md);
    color: var(--mobile-text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
    min-height: 48px; /* Touch-friendly */
}

.input-mobile:focus {
    outline: none;
    border-color: var(--primary-brand);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: var(--mobile-surface);
}

.input-mobile::placeholder {
    color: var(--mobile-text-muted);
}

/* Mobile Form Groups */
.form-group-mobile {
    margin-bottom: var(--spacing-lg);
}

.form-label-mobile {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--mobile-text-primary);
    font-size: 0.9rem;
}

/* Professional Progress System */
.progress-mobile {
    height: 8px;
    background: var(--mobile-bg-card);
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
}

.progress-mobile-bar {
    height: 100%;
    background: var(--gradient-primary);
    transition: width var(--transition-slow);
    position: relative;
}

.progress-mobile-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Mobile List System */
.list-mobile {
    background: var(--mobile-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--mobile-border);
}

.list-mobile-item {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--mobile-divider);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    min-height: 60px; /* Touch-friendly */
}

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

.list-mobile-item:hover,
.list-mobile-item:active {
    background: rgba(255, 255, 255, 0.05);
}

.list-mobile-item-content {
    flex: 1;
}

.list-mobile-item-title {
    font-weight: 600;
    color: var(--mobile-text-primary);
    margin-bottom: 2px;
}

.list-mobile-item-subtitle {
    font-size: 0.85rem;
    color: var(--mobile-text-muted);
}

.list-mobile-item-action {
    color: var(--mobile-text-muted);
    font-size: 0.9rem;
}

/* Mobile Badge System */
.badge-mobile {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-brand);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.badge-mobile-success {
    background: rgba(16, 216, 118, 0.1);
    color: var(--accent-success);
    border-color: rgba(16, 216, 118, 0.2);
}

.badge-mobile-warning {
    background: rgba(255, 190, 11, 0.1);
    color: var(--accent-warning);
    border-color: rgba(255, 190, 11, 0.2);
}

/* Professional Header System */
.header-mobile {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(20, 27, 60, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--mobile-border);
    padding: var(--spacing-md) 0;
}

.header-mobile-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    min-height: 60px;
}

.header-mobile-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--mobile-text-primary);
    margin: 0;
}

.header-mobile-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Mobile Content Spacing */
.content-mobile {
    padding: var(--spacing-lg);
    padding-bottom: calc(80px + var(--spacing-lg)); /* Account for mobile nav */
    max-width: 100%;
}

/* Professional Status Indicators */
.status-mobile {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.status-mobile-online {
    background: rgba(16, 216, 118, 0.1);
    color: var(--accent-success);
}

.status-mobile-offline {
    background: rgba(251, 133, 0, 0.1);
    color: var(--accent-warning);
}

.status-mobile::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.animate-slide-up {
    animation: slideInUp 0.5s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* Mobile Responsive Utilities */
@media (max-width: 768px) {
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .btn-mobile {
        width: 100%;
        justify-content: center;
    }
    
    .mobile-card {
        margin-bottom: var(--spacing-lg);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

/* Touch Feedback */
.touch-feedback {
    position: relative;
    overflow: hidden;
}

.touch-feedback::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.touch-feedback:active::after {
    width: 200px;
    height: 200px;
}

/* Professional Loading States */
.loading-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--mobile-text-muted);
}

.loading-mobile-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--mobile-border);
    border-top: 2px solid var(--primary-brand);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: var(--spacing-sm);
}

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

/* Mobile-Specific Improvements */
.mobile-only {
    display: block;
}

.desktop-only {
    display: none;
}

@media (min-width: 768px) {
    .mobile-only {
        display: none;
    }
    
    .desktop-only {
        display: block;
    }
    
    .mobile-nav {
        display: none;
    }
    
    .content-mobile {
        padding-bottom: var(--spacing-lg);
    }
}

/* Professional Error States */
.error-mobile {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--mobile-text-muted);
}

.error-mobile-icon {
    font-size: 3rem;
    color: var(--accent-danger);
    margin-bottom: var(--spacing-lg);
}

.error-mobile-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--mobile-text-primary);
    margin-bottom: var(--spacing-sm);
}

.error-mobile-message {
    margin-bottom: var(--spacing-lg);
}

/* Professional Success States */
.success-mobile {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--mobile-text-muted);
}

.success-mobile-icon {
    font-size: 3rem;
    color: var(--accent-success);
    margin-bottom: var(--spacing-lg);
}

.success-mobile-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--mobile-text-primary);
    margin-bottom: var(--spacing-sm);
}