/* ==========================================
   কাস্টম স্টাইল এবং অ্যানিমেশন
   ========================================== */

/* ভেরিয়েবল */
:root {
    --primary: #007bff;
    --secondary: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #343a40;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* গ্লোবাল স্টাইল */
* {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* টাইপোগ্রাফি */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 1rem;
}

p {
    line-height: 1.6;
    color: #666;
}

a {
    transition: var(--transition);
}

a:hover {
    text-decoration: none;
}

/* বাটন স্টাইল */
.btn {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    border: none;
    padding: 0.6rem 1.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #0056b3 100%);
    box-shadow: var(--box-shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
    background: linear-gradient(135deg, #0056b3 0%, var(--primary) 100%);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #1e7e34 100%);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #c82333 100%);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

/* কার্ড স্টাইল */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    overflow: hidden;
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, #0056b3 100%);
    color: white;
    border: none;
}

/* ইনপুট ফিল্ড */
.form-control,
.form-select {
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    transition: var(--transition);
    padding: 0.6rem 1rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-valid {
    border-color: var(--success);
}

.invalid-feedback {
    display: block;
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* নেভবার স্টাইল */
.navbar {
    box-shadow: var(--box-shadow);
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%) !important;
}

.navbar-brand {
    font-size: 1.5rem;
    color: var(--primary) !important;
}

.navbar-nav .nav-link {
    margin: 0 0.5rem;
    transition: var(--transition);
    color: #666 !important;
}

.navbar-nav .nav-link:hover {
    color: var(--primary) !important;
}

.navbar-nav .nav-link.active {
    color: var(--primary) !important;
    border-bottom: 2px solid var(--primary);
}

/* ড্রপডাউন */
.dropdown-menu {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--box-shadow-lg);
}

.dropdown-item:hover,
.dropdown-item.active {
    background-color: var(--primary);
}

/* এলার্ট স্টাইল */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

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

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

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

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

/* টেবিল স্টাইল */
.table {
    border-collapse: collapse;
}

.table thead th {
    background: linear-gradient(135deg, var(--primary) 0%, #0056b3 100%);
    color: white;
    border: none;
    font-weight: 600;
}

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

.table tbody tr:hover {
    background-color: #f8f9fa;
}

.table td {
    vertical-align: middle;
}

/* ব্যাজ স্টাইল */
.badge {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-weight: 500;
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #0056b3 100%);
}

.badge-success {
    background: linear-gradient(135deg, var(--success) 0%, #1e7e34 100%);
}

.badge-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #c82333 100%);
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #e0a800 100%);
    color: #333;
}

/* প্রগতি বার */
.progress {
    height: 8px;
    border-radius: 10px;
    background-color: #e0e0e0;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary) 0%, #0056b3 100%);
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

/* AOS অ্যানিমেশন */
[data-aos] {
    opacity: 0;
}

[data-aos="fade-in"] {
    animation: fadeIn 0.6s ease-out forwards;
}

[data-aos="slide-left"] {
    animation: slideInLeft 0.6s ease-out forwards;
}

[data-aos="slide-right"] {
    animation: slideInRight 0.6s ease-out forwards;
}

/* হিরো সেকশন */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0056b3 100%);
    color: white;
    padding: 6rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
    animation: fadeIn 0.8s ease-out;
}

.hero p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    animation: fadeIn 0.8s ease-out 0.2s both;
}

/* স্ট্যাটাস ব্যাজ */
.status-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.875rem;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-approved {
    background-color: #d4edda;
    color: #155724;
}

.status-rejected {
    background-color: #f8d7da;
    color: #721c24;
}

.status-processing {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* রেসপন্সিভ */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
}

/* ডার্ক মোড সাপোর্ট */
@media (prefers-color-scheme: dark) {
    body {
        background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
        color: #e0e0e0;
    }
    
    .card {
        background-color: #2a2a2a;
        color: #e0e0e0;
    }
    
    .form-control,
    .form-select {
        background-color: #3a3a3a;
        color: #e0e0e0;
        border-color: #555;
    }
    
    .table {
        color: #e0e0e0;
    }
    
    .table thead th {
        background-color: #1a1a1a;
    }
    
    .table tbody tr:hover {
        background-color: #3a3a3a;
    }
}

/* লোডার */
.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

/* টুলটিপ */
.tooltip-inner {
    background-color: var(--dark);
    border-radius: var(--border-radius);
}

.bs-tooltip-top .tooltip-arrow::before,
.bs-tooltip-auto[data-popper-placement^="top"] .tooltip-arrow::before {
    border-top-color: var(--dark);
}

/* ফিল্ট্রার স্টাইল */
.filter-btn {
    background-color: #f0f0f0;
    border: 2px solid transparent;
    border-radius: 20px;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary);
    color: var(--primary);
}

/* কাস্টম সিলেক্ট */
.custom-select-wrapper {
    position: relative;
}

.custom-select-wrapper select {
    appearance: none;
    padding-right: 2rem;
}

.custom-select-wrapper::after {
    content: "▼";
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: #666;
}

/* ইমেজ রেসপন্সিভ */
img {
    max-width: 100%;
    height: auto;
}

/* আন্ডারলাইন এনিমেশন */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

/* স্ক্রল টু টপ বাটন */
#scrollToTop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, #0056b3 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

#scrollToTop.show {
    opacity: 1;
}

#scrollToTop:hover {
    transform: scale(1.1);
    box-shadow: var(--box-shadow-lg);
}