/* ==========================================================================
   TMS Curated Design System (Plus Jakarta Sans)
   ========================================================================== */

   :root {
    --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    
    /* Primary Harmonious HSL Tailored Palettes */
    --primary-h: 222;
    --primary-s: 89%;
    --primary-l: 55%;
    
    --primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
    --primary-hover: hsl(var(--primary-h), var(--primary-s), calc(var(--primary-l) - 8%));
    --primary-light: hsl(var(--primary-h), var(--primary-s), 95%);
    --primary-glow: hsla(var(--primary-h), var(--primary-s), var(--primary-l), 0.15);
    
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.15);
    --warning: #f59e0b;
    --warning-glow: rgba(245, 158, 11, 0.15);
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.15);
    --info: #3b82f6;
    --info-glow: rgba(59, 130, 246, 0.15);
    
    /* Light Mode Variables */
    --bg-app: #f8fafc;
    --bg-surface: #ffffff;
    --bg-sidebar: #0f172a; /* Sleek dark sidebar even in light mode for professional contrast */
    --border-color: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(226, 232, 240, 0.8);
    --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 8px -1px rgba(15, 23, 42, 0.03);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
}

/* Dark Mode Overrides */
html.dark-mode {
    --bg-app: #090d16;
    --bg-surface: #121824;
    --bg-sidebar: #0b0f19;
    --border-color: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(18, 24, 36, 0.7);
    --glass-border: rgba(30, 41, 59, 0.8);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
    --primary-light: hsl(var(--primary-h), var(--primary-s), 15%);
}

/* Global Reset */
* {
    box-sizing: border-box;
    font-family: var(--font-family);
}

html, body {
    background-color: var(--bg-app);
    color: var(--text-main);
    min-height: 100vh;
    margin: 0;
    padding: 0;
    font-size: 14px;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Initial Full Screen Loader Screen */
.initial-loader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loader-content {
    text-align: center;
    color: #ffffff;
}

.loader-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    border-radius: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px auto;
    font-size: 38px;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.4);
    animation: bounceLogo 2s infinite ease-in-out;
}

.loader-title {
    font-weight: 800;
    font-size: 24px;
    letter-spacing: -0.5px;
    margin-bottom: 5px;
    background: linear-gradient(to right, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.loader-subtitle {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 25px;
}

.loader-spinner {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.loader-spinner > div {
    width: 10px;
    height: 10px;
    background-color: var(--primary);
    border-radius: 50%;
    display: inline-block;
    animation: bounceDots 1.4s infinite ease-in-out both;
}

.loader-spinner .spinner-bounce1 { animation-delay: -0.32s; }
.loader-spinner .spinner-bounce2 { animation-delay: -0.16s; }

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

@keyframes bounceDots {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1.0); }
}

/* Interactive Elements & Smooth Micro-Animations */
a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}
a:hover {
    color: var(--primary-hover);
}

.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    padding: 8px 16px;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    border: none;
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}
.btn-outline-primary:hover {
    background-color: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--border-color);
    border-color: var(--border-color);
    color: var(--text-main);
}
.btn-secondary:hover {
    background-color: var(--text-muted);
    border-color: var(--text-muted);
    color: #fff;
}

.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background-color: var(--bg-surface);
    color: var(--text-main);
    padding: 10px 14px;
    font-size: 14px;
    transition: var(--transition-smooth);
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-glow);
    background-color: var(--bg-surface);
    color: var(--text-main);
}

/* Glassmorphism Cards */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow);
    padding: 24px;
    transition: var(--transition-smooth);
    margin-bottom: 24px;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.08);
}

/* Toast Notifications styling */
.tms-toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1080;
    pointer-events: none;
    max-width: 380px;
}

.tms-toast {
    background: var(--bg-surface);
    border-left: 5px solid var(--primary);
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    color: var(--text-main);
    padding: 16px 20px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    pointer-events: auto;
    animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    transition: var(--transition-smooth);
}

.tms-toast.toast-success { border-left-color: var(--success); }
.tms-toast.toast-error { border-left-color: var(--danger); }
.tms-toast.toast-warning { border-left-color: var(--warning); }
.tms-toast.toast-info { border-left-color: var(--info); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Loading Overlay Spinner */
.tms-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1090;
}
.tms-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Header & Sidebar Premium Layout */
.tms-app-wrapper {
    display: flex;
    min-height: 100vh;
    width: 100vw;
}

.tms-sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    color: #94a3b8;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: var(--transition-smooth);
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.tms-sidebar-header {
    height: 70px;
    display: flex;
    align-items: center;
    padding: 0 18px; /* adjusted to perfectly align brand icon with menu icons */
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.tms-sidebar-brand-icon {
    width: 40px; /* increased from 36px */
    height: 40px; /* increased from 36px */
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    border-radius: 12px; /* increased from 10px */
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 22px; /* increased from 20px for clear visibility */
}

.tms-sidebar-brand-text {
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.tms-sidebar-menu {
    flex: 1;
    overflow-y: auto;
    padding: 20px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tms-sidebar-heading {
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    color: #475569;
    padding: 10px 10px 5px 10px;
    margin-top: 15px;
}

.tms-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: #94a3b8;
    font-weight: 500;
    transition: var(--transition-smooth);
    text-decoration: none;
}
.tms-menu-item i {
    font-size: 18px;
    transition: var(--transition-smooth);
}
.tms-menu-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}
.tms-menu-item:hover i {
    color: var(--primary);
    transform: scale(1.1);
}
.tms-menu-item.active {
    background-color: var(--primary-light);
    color: var(--primary);
}
html.dark-mode .tms-menu-item.active {
    background-color: var(--primary-light);
    color: #ffffff;
}

/* ==========================================================================
   Accordion Nested Sidebar Menu Styles (MSM Style)
   ========================================================================== */
.tms-menu-item-group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.tms-menu-item-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: #94a3b8;
    font-weight: 500;
    transition: var(--transition-smooth);
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    outline: none;
}

.tms-menu-item-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.tms-menu-item-btn:hover .tms-menu-item-icon {
    color: var(--primary);
    transform: scale(1.1);
}

.tms-menu-item-btn.active {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.02);
}

.tms-menu-item-icon {
    font-size: 18px;
    transition: var(--transition-smooth);
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.tms-menu-item-arrow {
    font-size: 12px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    color: #475569;
    margin-left: auto;
}

.tms-menu-item-text {
    flex: 1;
}

.tms-menu-item-group.expanded .tms-menu-item-arrow {
    transform: rotate(180deg);
    color: #ffffff;
}

/* Accordion nested Submenus and connect lines */
.tms-submenu-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tms-submenu-wrapper.expanded {
    grid-template-rows: 1fr;
}

.tms-submenu-inner {
    overflow: hidden;
}

.tms-submenu {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-left: 20px;
    border-left: 1px dashed rgba(255, 255, 255, 0.1);
    padding-left: 12px;
    padding-top: 4px;
    padding-bottom: 4px;
    transition: border-color 0.3s;
}

.tms-menu-item-group.child-active .tms-submenu {
    border-left-color: rgba(99, 102, 241, 0.35);
}

.tms-submenu .tms-menu-item {
    padding: 8px 12px 8px 20px;
    font-size: 13px;
    background: transparent;
    opacity: 0.85;
    font-weight: 500;
    position: relative;
}

.tms-submenu .tms-menu-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition-smooth);
}

.tms-submenu .tms-menu-item:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.05);
}

.tms-submenu .tms-menu-item:hover::before {
    background: var(--primary);
    box-shadow: 0 0 6px var(--primary-glow);
    transform: translateY(-50%) scale(1.3);
}

.tms-submenu .tms-menu-item.active {
    opacity: 1;
    background-color: var(--primary-light);
    color: var(--primary);
    box-shadow: none;
    border: none;
}

html.dark-mode .tms-submenu .tms-menu-item.active {
    background-color: var(--primary-light);
    color: #ffffff;
}

.tms-submenu .tms-menu-item.active::before {
    background: var(--primary);
    box-shadow: 0 0 8px var(--primary-glow);
    transform: translateY(-50%) scale(1.3);
}

.tms-menu-item-badge {
    background: linear-gradient(135deg, var(--danger), #ff6b8b);
    color: white;
    font-size: 10px;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 6px;
    line-height: 1;
    flex-shrink: 0;
}


.tms-sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tms-main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100vh;
}

.tms-navbar {
    height: 70px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    flex-shrink: 0;
    position: relative;
    z-index: 1020; /* Ensure dropdown lists stack on top of page content/cards */
}

.tms-navbar-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.tms-navbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.tms-page-container {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    position: relative;
    z-index: 1; /* Creates a lower stacking context to prevent cards/sections from overlapping navbar dropdowns */
}

/* Premium Login Page Mockup */
.tms-login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 40%),
                var(--bg-app);
    padding: 20px;
}

.tms-login-card {
    width: 100%;
    max-width: 440px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.1);
    padding: 40px;
    animation: cardFade 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardFade {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.tms-login-header {
    text-align: center;
    margin-bottom: 30px;
}

.tms-login-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    border-radius: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 30px;
    margin: 0 auto 15px auto;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

/* Custom Table style */
.tms-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}
.tms-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--bg-surface);
}
.tms-table th {
    background-color: var(--primary-light);
    color: var(--text-main);
    font-weight: 700;
    padding: 14px 20px;
    text-align: left;
    border-bottom: 2px solid var(--border-color);
}
.tms-table td {
    padding: 14px 20px;
    color: var(--text-main);
    border-bottom: 1px solid var(--border-color);
}
.tms-table tr:last-child td {
    border-bottom: none;
}
.tms-table tr:hover {
    background-color: rgba(37, 99, 235, 0.02);
}

/* Modern Chat Interface */
.tms-chat-wrapper {
    display: flex;
    height: calc(100vh - 170px);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.tms-chat-sidebar {
    width: 320px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.tms-chat-sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.tms-chat-contact-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.tms-chat-contact {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-bottom: 5px;
}
.tms-chat-contact:hover {
    background-color: var(--primary-light);
}
.tms-chat-contact.active {
    background-color: var(--primary-light);
}

.tms-chat-avatar {
    width: 44px;
    height: 44px;
    background-color: var(--primary);
    color: #fff;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}
.tms-chat-avatar.online::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: var(--success);
    border: 2px solid var(--bg-surface);
    border-radius: 50%;
    bottom: 0;
    right: 0;
}

.tms-chat-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tms-chat-header {
    padding: 15px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 15px;
}

.tms-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background-color: var(--bg-app);
}

.tms-chat-msg {
    max-width: 60%;
    padding: 12px 18px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.5;
}
.tms-chat-msg.sent {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: #fff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}
.tms-chat-msg.received {
    background-color: var(--bg-surface);
    color: var(--text-main);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.tms-chat-input-area {
    padding: 20px 30px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-surface);
}

/* ==========================================================================
   Advanced Collapsible and Responsive Off-canvas Sidebar Styles
   ========================================================================== */

/* Base Transitions for Smooth Sidebar Collapsing */
.tms-sidebar-brand-text,
.tms-sidebar-heading,
.tms-menu-item-text,
.tms-menu-item-arrow,
.tms-sidebar-footer,
.tms-menu-item-badge {
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                max-width 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                padding 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
                margin 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.25s;
    overflow: hidden;
    white-space: nowrap;
    display: inline-block;
    max-width: 200px; /* high enough starting value */
}

.tms-sidebar-heading {
    display: block;
}

.tms-menu-item-arrow {
    display: inline-block;
    max-width: 20px;
}

.tms-sidebar-footer {
    display: flex;
    max-width: 260px;
}

/* Toggle Button in Sidebar Header */
.tms-sidebar-toggle-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #94a3b8;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 10px;
    outline: none;
    margin-left: auto;
    flex-shrink: 0;
}

.tms-sidebar-toggle-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.08);
}

@media (max-width: 991px) {
    .tms-sidebar-toggle-btn {
        display: none; /* Hide on mobile since mobile uses drawer */
    }
}

/* Burger Menu Toggle in Top Navbar */
.tms-menu-toggle {
    background: var(--border-color);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 20px;
    outline: none;
    margin-right: 15px;
    flex-shrink: 0;
}

.tms-menu-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

@media (min-width: 992px) {
    .tms-menu-toggle {
        display: none; /* Hide on desktop */
    }
}

/* Mobile Drawer Overlay Backdrop */
.tms-sidebar-drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1040;
    animation: tmsFadeIn 0.3s ease-out forwards;
}

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

/* Collapsible and Responsive Sidebar core layout rules */
.tms-sidebar {
    z-index: 1050;
}

/* Collapsed State on Desktop */
@media (min-width: 992px) {
    .tms-sidebar.collapsed {
        width: 80px;
    }
    
    /* Smooth Hide when Collapsed (NO display: none!) */
    .tms-sidebar.collapsed .tms-sidebar-brand-text,
    .tms-sidebar.collapsed .tms-sidebar-heading,
    .tms-sidebar.collapsed .tms-menu-item-text,
    .tms-sidebar.collapsed .tms-menu-item-arrow,
    .tms-sidebar.collapsed .tms-sidebar-footer,
    .tms-sidebar.collapsed .tms-menu-item-badge {
        opacity: 0;
        visibility: hidden;
        max-width: 0;
        padding-left: 0 !important;
        padding-right: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        pointer-events: none;
    }
    
    /* HIDE the Toggle Button when Collapsed */
    .tms-sidebar.collapsed .tms-sidebar-toggle-btn {
        opacity: 0;
        visibility: hidden;
        width: 0;
        height: 0;
        padding: 0;
        margin: 0;
        border: none;
        pointer-events: none;
    }
    
    .tms-sidebar.collapsed .tms-sidebar-header {
        justify-content: center;
        padding: 0;
    }
    
    .tms-sidebar.collapsed .tms-menu-item {
        justify-content: center;
        padding: 10px 14px;
    }
    
    .tms-sidebar.collapsed .tms-sidebar-brand-icon {
        margin-right: 0;
    }
    
    .tms-sidebar.collapsed .tms-menu-item-group .tms-submenu-wrapper {
        display: none !important; /* Hide nested submenus on flat icon collapse */
    }

    /* Zero Layout Shift Hover Overlay Expansion */
    .tms-sidebar.collapsed.hover-expanded {
        width: 260px;
        position: absolute;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 2000;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    }
    
    /* Smooth Show on Hover */
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-brand-text,
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-heading,
    .tms-sidebar.collapsed.hover-expanded .tms-menu-item-text,
    .tms-sidebar.collapsed.hover-expanded .tms-menu-item-arrow,
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-footer,
    .tms-sidebar.collapsed.hover-expanded .tms-menu-item-badge {
        opacity: 1;
        visibility: visible;
        max-width: 200px;
        pointer-events: auto;
    }
    
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-heading {
        display: block;
        padding: 10px 10px 5px 10px;
        margin-top: 15px;
    }
    
    .tms-sidebar.collapsed.hover-expanded .tms-menu-item-arrow {
        display: inline-block;
        max-width: 20px;
    }
    
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-footer {
        display: flex;
        max-width: 260px;
        padding: 16px 20px;
    }
    
    /* SHOW the Toggle Button back on Hover */
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-toggle-btn {
        opacity: 1;
        visibility: visible;
        width: 28px;
        height: 28px;
        margin-left: auto;
        border: 1px solid rgba(255, 255, 255, 0.08);
        pointer-events: auto;
    }
    
    .tms-sidebar.collapsed.hover-expanded .tms-sidebar-header {
        justify-content: space-between;
        padding: 0 18px;
    }
    
    .tms-sidebar.collapsed.hover-expanded .tms-menu-item {
        justify-content: flex-start;
        padding: 10px 14px;
    }
    
    .tms-sidebar.collapsed.hover-expanded .tms-menu-item-group .tms-submenu-wrapper {
        display: grid !important; /* Restore nested submenus on hover expand */
    }
}

/* Off-canvas Drawer State on Mobile / Tablet */
@media (max-width: 991px) {
    .tms-sidebar {
        position: fixed;
        top: 0;
        left: -260px; /* Hidden off-screen */
        bottom: 0;
        width: 260px;
        height: 100vh;
        box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    }
    
    .tms-sidebar.drawer-open {
        left: 0; /* Slide in */
    }
}

/* Hide default Blazor unhandled error banner completely as requested */
#blazor-error-ui {
    display: none !important;
}

/* Custom Confirmation Modal CSS */
.tms-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2100;
    animation: fadeInModal 0.2s ease-out;
}

.tms-modal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--card-shadow), 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    max-width: 480px;
    width: 90%;
    padding: 24px;
    transform: scale(0.95);
    animation: zoomInModal 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

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

@keyframes zoomInModal {
    to { transform: scale(1); }
}

.tms-modal-header {
    border-bottom: 1px solid var(--border-color);
}

.tms-modal-footer {
    border-top: 1px solid var(--border-color);
}