/* ইনভেন্টরি ম্যানেজমেন্ট সিস্টেম - কাস্টম CSS */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #16a085;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --border-color: #bdc3c7;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: #2c3e50;
    line-height: 1.6;
}

/* নেভিগেশন বার */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    letter-spacing: 0.5px;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8) !important;
    margin: 0 0.5rem;
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: white !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: white;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

/* সাইডবার */
.sidebar {
    background: white;
    box-shadow: var(--shadow);
    min-height: 100vh;
    padding: 2rem 0;
}

.sidebar .nav-link {
    color: var(--dark-color);
    padding: 0.75rem 1.5rem;
    border-left: 3px solid transparent;
    transition: var(--transition);
    margin-bottom: 0.5rem;
}

.sidebar .nav-link:hover {
    background-color: var(--light-color);
    border-left-color: var(--secondary-color);
    color: var(--secondary-color);
}

.sidebar .nav-link.active {
    background-color: var(--light-color);
    border-left-color: var(--secondary-color);
    color: var(--secondary-color);
    font-weight: 600;
}

.sidebar .nav-heading {
    padding: 1rem 1.5rem 0.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 1rem;
}

/* মেইন কন্টেন্ট */
.main-content {
    background-color: #f5f7fa;
    padding: 2rem;
    min-height: 100vh;
}

.page-header {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: #7f8c8d;
    font-size: 0.95rem;
}

/* কার্ড */
.card {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    margin-bottom: 2rem;
}

.card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* টেবিল */
.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody td {
    padding: 1rem;
    border-color: #e0e0e0;
    vertical-align: middle;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background-color: #f9f9f9;
}

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

/* ফর্ম */
.form-control {
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 0.75rem 1rem;
    transition: var(--transition);
    font-size: 0.95rem;
}

.form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

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

.form-group {
    margin-bottom: 1.5rem;
}

/* বাটন */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.4);
}

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

.btn-success:hover {
    background-color: #229954;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.4);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.4);
}

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

.btn-warning:hover {
    background-color: #e67e22;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.4);
}

.btn-info {
    background-color: var(--info-color);
    color: white;
}

.btn-info:hover {
    background-color: #138d75;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(22, 160, 133, 0.4);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
    display: block;
}

/* অ্যালার্ট */
.alert {
    border: none;
    border-radius: 6px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    animation: slideIn 0.3s ease;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid var(--info-color);
}

/* ব্যাজ */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.8rem;
}

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

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

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

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

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

/* স্ট্যাটাস ব্যাজ */
.status-active {
    background-color: var(--success-color);
    color: white;
}

.status-inactive {
    background-color: #95a5a6;
    color: white;
}

.status-pending {
    background-color: var(--warning-color);
    color: white;
}

.status-approved {
    background-color: var(--success-color);
    color: white;
}

.status-rejected {
    background-color: var(--danger-color);
    color: white;
}

/* ড্যাশবোর্ড স্ট্যাটস */
.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.stat-card .stat-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    color: #7f8c8d;
    font-size: 0.95rem;
}

/* মডাল */
.modal-content {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 1.5rem;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

/* লগইন পেজ */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.login-card {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.login-card .login-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
}

/* অ্যানিমেশন */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* রেসপন্সিভ */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .page-header {
        padding: 1.5rem;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .table {
        font-size: 0.85rem;
    }
    
    .table thead th,
    .table tbody td {
        padding: 0.75rem 0.5rem;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
}

/* ইউটিলিটি ক্লাস */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

.justify-content-between {
    justify-content: space-between;
}

.align-items-center {
    align-items: center;
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

.text-muted {
    color: #7f8c8d;
}

.text-success {
    color: var(--success-color);
}

.text-danger {
    color: var(--danger-color);
}

.text-warning {
    color: var(--warning-color);
}

.text-info {
    color: var(--info-color);
}

.font-weight-bold {
    font-weight: 700;
}

.font-weight-normal {
    font-weight: 400;
}

/* স্ক্রল বার */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

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