/* Glow Effects */
.glow {
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 10px rgba(37, 99, 235, 0.5),
                    0 0 20px rgba(37, 99, 235, 0.3);
    }
    to {
        box-shadow: 0 0 20px rgba(37, 99, 235, 0.7),
                    0 0 30px rgba(37, 99, 235, 0.5);
    }
}/* Breadcrumb */
.breadcrumb {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 16px 24px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    font-size: 14px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.breadcrumb a {
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--primary-color);
}/**
 * Main Stylesheet
 * LMS System - Premium Modern Design
 */

/* ===================================
   CSS Variables
=================================== */
:root {
    /* Primary Colors - Gradient Style */
    --primary-color: #162e58;
    --primary-dark: #5568d3;
    --primary-light: #8b97f3;
    
    --primary-gradient: #162e58;
    --accent-color: #f093fb;
    
    /* Background Colors */
    --bg-main: #f8f9fa;
    --bg-white: #FFFFFF;
    --bg-sidebar: #1a1f36;
    --bg-card: #ffffff;
    
    /* Text Colors */
    --text-primary: #1a202c;
    --text-secondary: #718096;
    --text-light: #a0aec0;
    --text-white: #FFFFFF;
    
    /* Status Colors - More Vibrant */
    --success: #48bb78;
    --warning: #ed8936;
    --danger: #f56565;
    --info: #4299e1;
    
    /* Shadows - Modern Depth */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05);
    
    /* Border & Shadow */
    --border-color: #e2e8f0;
    --border-radius: 16px;
    --card-radius: 20px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

/* ===================================
   Reset & Base Styles
=================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@300;400;500;600;700&display=swap');

body {
    font-family: 'Noto Sans Thai', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: #f7f7f7;
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}



a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

/* ===================================
   Typography
=================================== */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 28px; }
h2 { font-size: 24px; }
h3 { font-size: 18px; }
h4 { font-size: 17px; }
h5 { font-size: 16px; }
h6 { font-size: 15px; }

p {
    margin-bottom: var(--spacing-md);
}

/* ===================================
   Buttons
=================================== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    border: none;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
	font-family: 'noto sans thai';
}


.df-end {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    border-top: 1px solid #eee;
    padding-top: 30px;
    margin-top: 50px !important;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: #162e58;
    color: var(--text-white);
}

.btn-primary:hover {
    color: var(--text-white);
}


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


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


.btn-secondary {
    background: linear-gradient(135deg, #64748b, #475569);
    color: var(--text-white);
    font-weight: 600;
}

.btn-secondary:hover {
    color: var(--text-white);
}


.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

/* ===================================
   Cards
=================================== */
.card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    padding: 32px;
    border: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}


.card-header {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid #e5e7eb;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-body {
    padding: var(--spacing-md) 0;
}

.card-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-md);
}

/* ===================================
   Forms
=================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 14px 20px;
    border: 0;
    border-radius: 30px;
    font-size: 15px;
    font-family: 'Noto Sans Thai', sans-serif;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #f7f7f7;
    color: var(--text-primary);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
    transform: translateY(-1px);
}

textarea.form-control {
    border-radius: 20px;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%232C3E50' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* ===================================
   Container & Layout
=================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}

.col {
    flex: 1;
    padding: 0 12px;
}

.col-2 { flex: 0 0 16.666%; max-width: 16.666%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-8 { flex: 0 0 66.666%; max-width: 66.666%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* ===================================
   Grid System
=================================== */
.grid {
    display: grid;
    gap: 32px;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Alerts
=================================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 30px;
    margin-bottom: var(--spacing-lg);
    border: none;
}

.alert-success {
    background-color: #D5F4E6;
    color: #1E8449;
    border-color: #27AE60;
}

.alert-danger {
    background-color: #FADBD8;
    color: #A93226;
    border-color: #E74C3C;
}

.alert-warning {
    background-color: #FCF3CF;
    color: #7D6608;
    border-color: #F39C12;
}

.alert-info {
    background-color: #D6EAF8;
    color: #1F618D;
    border-color: #3498DB;
}

/* ===================================
   Table
=================================== */
.table-responsive {
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-white);
    border-radius: var(--card-radius);
    overflow: hidden;
}

thead {
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
}

th, td {
    padding: 16px var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tbody tr {
    transition: all 0.2s ease;
}

tbody tr:hover {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.05), transparent);
    transform: scale(1.01);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* ===================================
   Badge
=================================== */
.badge {
    display: inline-block;
    padding: 4px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.badge-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--text-white);
   
}

.badge-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--text-white);
    
}

.badge-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: var(--text-white);
    
}

.badge-info {
    background: #41587f;
    color: var(--text-white);
}

.badge-primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-secondary {
    background: linear-gradient(135deg, #64748b, #475569);
    color: var(--text-white);
}

/* ===================================
   Navbar (Frontend)
=================================== */
.navbar {
    background: #fff;
    border-bottom: none;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 ;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    font-size: 26px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.navbar-brand i {
    font-size: 32px;
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.navbar-menu li a {
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 20px;
    border-radius: 30px;
    transition: all 0.3s ease;
	background: rgba(30, 64, 175, 0.1);
}

.navbar-menu li a:hover {
    background: rgba(30, 64, 175, 0.1);
    color: var(--primary-color);
}

/* ===================================
   Hero Section
=================================== */
.hero {
    background: var(--primary-gradient);
    color: var(--text-white);
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: rgba(96, 165, 250, 0.15);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: rgba(147, 197, 253, 0.1);
    border-radius: 50%;
}

.hero h1 {
    font-size: 56px;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    animation: fadeInDown 1s ease;
}

.hero p {
    font-size: 22px;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    font-weight: 400;
    animation: fadeInUp 1s ease 0.2s both;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Section
=================================== */
.section {
    padding: 30px 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title h2 {
    font-size: 42px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ===================================
   Footer
=================================== */
.footer {
    background: linear-gradient(135deg, #0f172a 0%, #020617 100%);
    color: var(--text-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: 80px;
    position: relative;
}



.footer p {
    margin: 0;
    opacity: 0.9;
    font-weight: 500;
}

/* ===================================
   Utilities
=================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Icon Styles */
.icon-lg {
    font-size: 48px;
    margin-bottom: 16px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.pt-1 { padding-top: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }

.pb-1 { padding-bottom: var(--spacing-xs); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.pb-3 { padding-bottom: var(--spacing-md); }
.pb-4 { padding-bottom: var(--spacing-lg); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }

/* ===================================
   Responsive Design
=================================== */
@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .col-2, .col-3, .col-4, .col-6, .col-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .navbar-menu {
        display: none;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .card {
        padding: 24px;
    }
    
    .container {
        padding: 0 16px;
    }

	.navbar {
		padding: 20px 20px;
	}
	.navbar-brand {
		font-size: 18px;
	}
	.navbar-brand i {
		font-size: 24px;
	}
	.grid {
		display: grid;
		gap: 0px;
	}
}

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

@keyframes slideInRight {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.card, .btn, .stat-card {
    animation: fadeIn 0.6s ease-out;
}

/* Loading Spinner */
.spinner {
    border: 3px solid rgba(102, 126, 234, 0.1);
    border-radius: 50%;
    border-top: 3px solid var(--primary-color);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.9;
        transform: scale(1.05);
    }
}

.badge-primary {
    animation: pulse 2s ease-in-out infinite;
}