/* ============================================
   LED SERVICE - Modern UI v3 (Bootstrap 5.3)
   ============================================ */

:root {
    /* Primary Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-rgb: 99, 102, 241;
    
    /* Secondary Colors */
    --success: #10b981;
    --success-light: #34d399;
    --warning: #f59e0b;
    --warning-light: #fbbf24;
    --danger: #ef4444;
    --danger-light: #f87171;
    --info: #06b6d4;
    --purple: #8b5cf6;
    --pink: #ec4899;
    
    /* Neutral Colors */
    --bg-body: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.25);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* ============================================
   Base Styles
   ============================================ */
body {
    font-family: 'IBM Plex Sans Thai', sans-serif;
    background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
    color: var(--text-main);
    min-height: 100vh;
}

.main-content {
    padding: 2rem 0 4rem;
    min-height: calc(100vh - 200px);
}

/* ============================================
   Navbar Styling
   ============================================ */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    padding: 0.75rem 0;
    transition: all 0.3s ease;
}

.navbar-scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.navbar-dark .navbar-nav .nav-link {
    color: var(--text-muted);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
}

.btn-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--purple) 100%);
    color: white;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    margin-bottom: 2.5rem;
}

.page-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: 1rem;
}

/* ============================================
   Modern Cards
   ============================================ */
.card-modern {
    background: var(--card-bg);
    border: none;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    height: 100%;
}

.card-modern:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-modern .card-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-modern .card-body {
    padding: 1.5rem;
}

/* Stat Cards */
.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-gradient, linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card .icon-box {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.stat-card:hover .icon-box {
    transform: scale(1.1) rotate(5deg);
}

.bg-primary-soft { 
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%); 
    color: var(--primary);
}

.bg-success-soft { 
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%); 
    color: var(--success);
}

.bg-warning-soft { 
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%); 
    color: var(--warning);
}

.bg-danger-soft { 
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%); 
    color: var(--danger);
}

.bg-info-soft { 
    background: linear-gradient(135deg, #ecfeff 0%, #cffafe 100%); 
    color: var(--info);
}

.bg-purple-soft { 
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 100%); 
    color: var(--purple);
}

.stat-card .stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-card .stat-value {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1;
    letter-spacing: -1px;
}

.stat-card .stat-meta {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    border-radius: var(--radius);
    padding: 0.625rem 1.25rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--purple) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-light) 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, var(--warning-light) 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, var(--danger-light) 100%);
    border: none;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
    color: white;
}

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

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

/* ============================================
   Forms
   ============================================ */
.form-control, .form-select {
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    outline: none;
}

.form-control:hover:not(:focus) {
    border-color: var(--primary-light);
}

.form-label {
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-label i {
    color: var(--primary);
}

/* ============================================
   Badges
   ============================================ */
.badge {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
}

.badge-soft-primary {
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    color: #3730a3;
}

.badge-soft-success {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    color: #166534;
}

.badge-soft-warning {
    background: linear-gradient(135deg, #fef9c3 0%, #fef08a 100%);
    color: #854d0e;
}

.badge-soft-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
}

.badge-soft-info {
    background: linear-gradient(135deg, #cffafe 0%, #a5f3fc 100%);
    color: #164e63;
}

/* ============================================
   Tables
   ============================================ */
.table-container {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.table-container .card-header {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table {
    margin-bottom: 0;
}

.table thead th {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    padding: 1rem 1.25rem;
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

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

.table tbody tr:hover {
    background-color: rgba(99, 102, 241, 0.04);
}

.table tbody td {
    padding: 1rem 1.25rem;
    vertical-align: middle;
    border: none;
}

/* DataTables Custom */
.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter {
    margin-bottom: 1rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: var(--radius) !important;
    margin: 0 2px;
    border: none !important;
    background: transparent !important;
    color: var(--text-muted) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%) !important;
    color: white !important;
}

/* ============================================
   Progress Bars
   ============================================ */
.progress {
    height: 8px;
    background: linear-gradient(90deg, #f1f5f9 0%, #e2e8f0 100%);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary) 0%, var(--purple) 100%);
    border-radius: var(--radius-full);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.bg-primary { background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%) !important; }
.bg-success { background: linear-gradient(135deg, var(--success) 0%, var(--success-light) 100%) !important; }
.bg-warning { background: linear-gradient(135deg, var(--warning) 0%, var(--warning-light) 100%) !important; }
.bg-danger { background: linear-gradient(135deg, var(--danger) 0%, var(--danger-light) 100%) !important; }
.bg-info { background: linear-gradient(135deg, var(--info) 0%, var(--primary) 100%) !important; }

/* ============================================
   Alerts
   ============================================ */
.alert {
    border: none;
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    font-weight: 500;
}

.alert-info {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    color: #075985;
}

.alert-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
}

.alert-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
}

.alert-danger {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

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

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-slide-in {
    animation: slideIn 0.6s ease-out;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Custom Scrollbar
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: var(--radius-full);
}

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

/* ============================================
   Utility Classes
   ============================================ */
.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-glow {
    box-shadow: var(--shadow-glow);
}

.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Link Styles */
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.table a {
    font-weight: 600;
    transition: all 0.2s ease;
}

.table a:hover {
    color: var(--primary-dark);
    transform: translateX(3px);
}

/* ============================================
   Responsive Improvements
   ============================================ */
@media (max-width: 991.98px) {
    .navbar-brand { font-size: 1.1rem; }
    .main-content { padding: 1rem 0 3rem; }
    .page-header { margin-bottom: 1.5rem; }
    .page-title { font-size: 1.75rem; }
}

@media (max-width: 767.98px) {
    .container { padding-left: 15px; padding-right: 15px; }
    
    /* Stat Cards Stack */
    .row > [class*='col-'] { margin-bottom: 1rem; }
    .stat-card { padding: 1.25rem; }
    .stat-card .stat-value { font-size: 1.5rem; }
    .stat-card .icon-box { width: 48px; height: 48px; margin-bottom: 1rem; font-size: 1.25rem; }
    
    /* Card Padding */
    .card-modern .card-header { padding: 1rem 1.25rem; font-size: 1rem; }
    .card-modern .card-body { padding: 1rem 1.25rem; }
    
    /* Table Optimizations */
    .table thead { display: none; } /* Hide headers on very small screens if using responsive stacking */
    .table tbody td { padding: 0.75rem !important; font-size: 0.85rem; }
    
    /* Form Adjustments */
    .form-control-lg, .form-select-lg { padding: 0.6rem 0.8rem; font-size: 0.95rem; }
    .btn-lg { padding: 0.6rem 1.2rem; font-size: 1rem; }
}

/* Table vs Cards Responsive Switch */
.mobile-cards { display: none; }

@media (max-width: 767.98px) {
    .desktop-table { display: none !important; }
    .mobile-cards { display: block; }
    
    .service-card {
        background: var(--card-bg);
        border-radius: var(--radius-lg);
        padding: 1.25rem;
        margin-bottom: 1rem;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
    }
    .service-card .card-topic { font-weight: 700; color: var(--primary); font-size: 1rem; margin-bottom: 0.5rem; }
    .service-card .card-info { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.25rem; }
    .service-card .card-status { margin-top: 0.75rem; display: flex; justify-content: space-between; align-items: center; }
}



/* ============================================
   Floating Action Button (FAB)
   ============================================ */
.btn-fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8) translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    padding: 0;
    border: none;
    background: linear-gradient(135deg, var(--primary) 0%, var(--purple) 100%);
    color: white !important;
}

.btn-fab.show {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
}

.btn-fab:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--purple) 100%);
}

@media (max-width: 767.98px) {
    .btn-fab {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}