/* static/css/modern-ui.css */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-gradient: linear-gradient(135deg, #0ba360 0%, #3cba92 100%);
    --warning-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --danger-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --text-muted: #b2bec3;
    --border-color: #e9ecef;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 24px rgba(102, 126, 234, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.input-modern {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s;
    background: var(--card-bg);
}

.input-modern:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-success {
    background: var(--success-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(11, 163, 96, 0.4);
}

.btn-warning {
    background: var(--warning-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-gradient);
    color: white;
}

.product-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

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

.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.table-modern thead th {
    background: transparent;
    padding: 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    border: none;
}

.table-modern tbody tr {
    background: var(--card-bg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
}

.table-modern tbody tr:hover {
    transform: scale(1.01);
    box-shadow: var(--shadow-md);
}

.table-modern tbody td {
    padding: 16px;
    border: none;
}

.badge-modern {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: rgba(11, 163, 96, 0.1);
    color: #0ba360;
}

.badge-warning {
    background: rgba(240, 147, 251, 0.1);
    color: #f5576c;
}

.badge-danger {
    background: rgba(250, 112, 154, 0.1);
    color: #fa709a;
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .stat-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}