/* Custom CSS for Production Tracking System */

:root {
    --primary-color: #2c5aa0;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --calm-bg: #f5f7fa;
    --calm-blue: #e3f2fd;
    --shadow-color: rgba(0, 0, 0, 0.08);
}

/* General Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--calm-bg);
    color: var(--dark-color);
    line-height: 1.6;
}

/* Calm and Clean Design */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 20px var(--shadow-color);
    transition: all 0.3s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.12);
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    border-bottom: none;
    font-weight: 600;
    padding: 1rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Navigation */
.navbar {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.3rem;
}

.nav-link {
    font-weight: 500;
    transition: all 0.2s ease;
    border-radius: 6px;
    margin: 0 2px;
}

.nav-link:hover {
    background-color: var(--calm-blue);
    transform: translateY(-1px);
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 600;
    padding: 0.5rem 1.2rem;
    transition: all 0.2s ease;
    border: none;
    text-transform: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-lg {
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #3d6cb0);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #26a85a);
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #31d2f2);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #ffcd39);
    color: var(--dark-color);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #e45563);
}

/* Forms */
.form-control {
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
    background-color: #fff;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 90, 160, 0.15);
    background-color: #fff;
}

.form-control-lg {
    padding: 1rem 1.25rem;
    font-size: 1.1rem;
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.form-select {
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tables */
.table {
    border-radius: 8px;
}

.table th {
    background-color: var(--dark-color);
    color: white;
    font-weight: 600;
    border: none;
    padding: 1rem;
}

.table td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    border-color: #e9ecef;
}

.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.02);
}

.table-hover > tbody > tr:hover {
    background-color: var(--calm-blue);
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px var(--shadow-color);
}

.alert-success {
    background: linear-gradient(135deg, #d1e7dd, #badbcc);
    color: #0f5132;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da, #f1aeb5);
    color: #721c24;
}

.alert-info {
    background: linear-gradient(135deg, #cff4fc, #9eeaf9);
    color: #055160;
}

.alert-warning {
    background: linear-gradient(135deg, #fff3cd, #ffecb5);
    color: #664d03;
}

/* Badges */
.badge {
    font-weight: 600;
    padding: 0.5em 0.8em;
    border-radius: 6px;
}

/* Statistics Cards */
.stat-item {
    padding: 1.5rem;
    text-align: center;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.stat-item h4 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0.5rem 0;
    color: var(--primary-color);
}

.stat-item p {
    margin: 0;
    font-weight: 500;
}

/* Login Page Specific */
.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--calm-bg), #e8f4f8);
}

/* Welcome Page */
.display-4 {
    font-weight: 300;
    margin-bottom: 2rem;
}

.lead {
    font-size: 1.2rem;
    font-weight: 400;
}

/* File Upload */
.form-control[type="file"] {
    border-style: dashed;
    border-width: 2px;
    background-color: #fafbfc;
}

.form-control[type="file"]:hover {
    background-color: #f0f8ff;
    border-color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .card-body {
        padding: 1rem;
    }
    
    .stat-item h4 {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Loading States */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 1s ease-in-out infinite;
}

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

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

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

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .alert {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    body {
        background: white !important;
    }
}

/* Focus indicators for accessibility */
.form-control:focus,
.btn:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid var(--dark-color);
    }
    
    .btn {
        border: 2px solid currentColor;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}