/* Proletto Professional Design System */

:root {
    /* Primary Gradients */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
    --info-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    --danger-gradient: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    
    /* Professional Colors */
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #4facfe;
    --warning-color: #f6d365;
    --danger-color: #ff9a9e;
    --info-color: #a8edea;
    
    /* Neutral Palette */
    --bg-light: #f8f9ff;
    --bg-card: #ffffff;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-muted: #a0aec0;
    --border-light: rgba(102, 126, 234, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
}

/* Global Font System */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-light);
    line-height: 1.6;
}

/* Professional Card System */
.proletto-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    overflow: hidden;
}

.proletto-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.proletto-card-header {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-md);
    border-bottom: none;
}

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

.proletto-card-footer {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

/* Professional Stats Cards */
.stats-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stats-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.stats-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stats-label {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Enhanced Button System */
.btn-proletto-primary {
    background: var(--primary-gradient);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-proletto-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    color: white;
}

.btn-proletto-success {
    background: var(--success-gradient);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-proletto-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
    color: white;
}

.btn-proletto-warning {
    background: var(--warning-gradient);
    border: none;
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-proletto-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(246, 211, 101, 0.3);
    color: white;
}

/* Professional Badges */
.badge-proletto {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary-gradient {
    background: var(--primary-gradient);
    color: white;
}

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

.badge-warning-gradient {
    background: var(--warning-gradient);
    color: white;
}

/* Progress Bars */
.progress-proletto {
    height: 12px;
    border-radius: 20px;
    background-color: #e2e8f0;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.progress-bar-proletto {
    background: var(--primary-gradient);
    height: 100%;
    border-radius: 20px;
    transition: width 0.5s ease;
    position: relative;
    overflow: hidden;
}

.progress-bar-proletto::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.2) 25%, transparent 25%, transparent 50%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0.2) 75%, transparent 75%);
    background-size: 20px 20px;
    animation: progress-shine 2s linear infinite;
}

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

/* Professional Navigation */
.navbar-proletto {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.navbar-brand-proletto {
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Alert System */
.alert-proletto {
    border-radius: var(--radius-md);
    border: none;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.alert-proletto-info {
    background: linear-gradient(135deg, rgba(168, 237, 234, 0.1) 0%, rgba(254, 214, 227, 0.1) 100%);
    border-left: 4px solid var(--info-color);
    color: var(--text-primary);
}

.alert-proletto-warning {
    background: linear-gradient(135deg, rgba(246, 211, 101, 0.1) 0%, rgba(253, 160, 133, 0.1) 100%);
    border-left: 4px solid var(--warning-color);
    color: var(--text-primary);
}

.alert-proletto-success {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1) 0%, rgba(0, 242, 254, 0.1) 100%);
    border-left: 4px solid var(--success-color);
    color: var(--text-primary);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Icon System */
.icon-gradient {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin: 0 auto var(--spacing-md);
}

.icon-primary { background: var(--primary-gradient); }
.icon-success { background: var(--success-gradient); }
.icon-warning { background: var(--warning-gradient); }
.icon-info { background: var(--info-gradient); }

/* Typography */
.title-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.subtitle {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
}

/* Mobile Optimization */
@media (max-width: 768px) {
    .proletto-card {
        margin-bottom: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .proletto-card-body {
        padding: var(--spacing-md);
    }
    
    .stats-card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .stats-number {
        font-size: 2rem;
    }
    
    .btn-proletto-primary,
    .btn-proletto-success,
    .btn-proletto-warning {
        width: 100%;
        margin-bottom: var(--spacing-xs);
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .navbar-brand-proletto {
        font-size: 1.25rem;
    }
    
    .icon-gradient {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
}

@media (max-width: 576px) {
    :root {
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }
    
    .proletto-card-body {
        padding: var(--spacing-sm);
    }
    
    .stats-number {
        font-size: 1.75rem;
    }
    
    .stats-label {
        font-size: 0.8rem;
    }
}

/* Tablet Optimization */
@media (min-width: 769px) and (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-card {
        min-height: 140px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}

/* Large Screen Optimization */
@media (min-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .container-fluid {
        max-width: 1400px;
        margin: 0 auto;
    }
}

/* Form Controls */
.form-control-proletto {
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    transition: all 0.3s ease;
    background-color: white;
}

.form-control-proletto:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

/* Loading States */
.loading-shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-light: #1a202c;
        --bg-card: #2d3748;
        --text-primary: #f7fafc;
        --text-secondary: #e2e8f0;
        --text-muted: #a0aec0;
        --border-light: rgba(255, 255, 255, 0.1);
    }
    
    .proletto-card {
        background: var(--bg-card);
    }
    
    .navbar-proletto {
        background: rgba(45, 55, 72, 0.95);
    }
}