/* ==========================================================================
   Ticket to TechWiz 07 – Enterprise SaaS UI/UX Design System
   Modern Core CSS System (Bootstrap 5.3 Compatible)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties / Design Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette - Light Mode */
    --brand-primary: #4f46e5;
    --brand-primary-hover: #4338ca;
    --brand-primary-rgb: 79, 70, 229;
    --brand-secondary: #0ea5e9;
    --brand-accent: #f59e0b;
    
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    --bg-navbar: #0f172a;
    --bg-input: #f1f5f9;
    --bg-hover: #f1f5f9;

    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-white: #ffffff;

    --border-color: #e2e8f0;
    --border-focus: #818cf8;

    --sidebar-width: 270px;
    --sidebar-width-collapsed: 80px;

    /* Shadows & Elevations */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.2);

    /* Glassmorphism & Gradients */
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-backdrop: blur(12px);

    --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #0ea5e9 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);

    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1.25rem;
    --radius-pill: 9999px;
    
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Tokens Override */
[data-bs-theme="dark"] {
    --bg-body: #0b0f19;
    --bg-card: #151c2c;
    --bg-sidebar: #111726;
    --bg-navbar: #0b0f19;
    --bg-input: #1e293b;
    --bg-hover: #1e293b;

    --text-main: #f8fafc;
    --text-muted: #94a3b8;

    --border-color: #1e293b;
    --border-focus: #6366f1;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);

    --glass-bg: rgba(21, 28, 44, 0.85);
    --glass-border: rgba(255, 255, 255, 0.08);
}

/* --------------------------------------------------------------------------
   2. Global Typography & Reset
   -------------------------------------------------------------------------- */
body.layout-wrapper {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    letter-spacing: -0.01em;
    transition: var(--transition-base);
}

a {
    text-decoration: none;
    color: var(--brand-primary);
    transition: var(--transition-fast);
}

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

.fs-7 { font-size: 0.75rem !important; }
.letter-spacing-1 { letter-spacing: 0.08em; }

/* Focus States for Accessibility */
:focus-visible {
    outline: 2px solid var(--brand-primary) !important;
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   3. Top Navbar
   -------------------------------------------------------------------------- */
.bg-dark-gradient {
    background: var(--gradient-dark) !important;
}

.navbar-saas {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-backdrop);
    z-index: 1030;
}

.brand-badge {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.theme-toggle-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #f59e0b;
    transform: rotate(15deg);
}

/* Pulse Badge Indicator */
.pulse-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #10b981;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* --------------------------------------------------------------------------
   4. App Container & Sidebar Layout
   -------------------------------------------------------------------------- */
.app-container {
    display: flex;
    flex: 1;
    min-height: calc(100vh - 64px);
}

.sidebar-wrapper {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    transition: var(--transition-base);
    z-index: 1020;
    display: flex;
    flex-direction: column;
}

.sidebar-wrapper.collapsed {
    width: var(--sidebar-width-collapsed);
    min-width: var(--sidebar-width-collapsed);
}

.sidebar-wrapper.collapsed .sidebar-text,
.sidebar-wrapper.collapsed .sidebar-header-info {
    display: none !important;
}

.sidebar-wrapper.collapsed .nav-link {
    justify-content: center;
    padding: 0.75rem 0;
}

.sidebar-wrapper.collapsed .nav-icon {
    margin-right: 0 !important;
    font-size: 1.25rem;
}

.main-content {
    flex: 1;
    padding: 1.75rem;
    overflow-x: hidden;
    background-color: var(--bg-body);
}

/* Sidebar Custom Styling */
.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
}

.nav-link:hover {
    color: var(--text-main);
    background-color: var(--bg-hover);
    transform: translateX(3px);
}

.nav-link.active {
    color: #ffffff !important;
    background: var(--gradient-brand) !important;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
    transform: translateX(0);
}

.nav-icon {
    width: 22px;
    margin-right: 10px;
    font-size: 1.1rem;
}

/* --------------------------------------------------------------------------
   5. Modern SaaS Cards & KPI Widgets
   -------------------------------------------------------------------------- */
.card-saas {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.card-saas:hover {
    box-shadow: var(--shadow-md);
}

.card-stat {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    overflow: hidden;
    position: relative;
}

.card-stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg) !important;
    border-color: var(--brand-primary);
}

.card-stat::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-brand);
    opacity: 0;
    transition: opacity 0.25s ease;
}

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

.stat-icon-wrapper {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    transition: var(--transition-fast);
}

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

/* Glassmorphism Card Utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   6. DataTables & Custom Tables
   -------------------------------------------------------------------------- */
.table-custom {
    color: var(--text-main);
}

.table-custom th {
    background-color: var(--bg-input) !important;
    color: var(--text-muted);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
    padding: 0.85rem 1rem;
}

.table-custom td {
    vertical-align: middle;
    font-size: 0.9rem;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border-color);
    background-color: transparent;
}

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

.table-custom tbody tr:hover {
    background-color: var(--bg-hover) !important;
}

/* DataTables Control Styling */
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.4rem 0.8rem;
    background-color: var(--bg-input);
    color: var(--text-main);
    outline: none;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--gradient-brand) !important;
    color: #ffffff !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   7. Form Controls & Drag and Drop Upload Zone
   -------------------------------------------------------------------------- */
.form-control, .form-select {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: var(--radius-md);
    padding: 0.65rem 1rem;
    transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-card);
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
    color: var(--text-main);
}

/* Drag & Drop Upload Zone */
.upload-dropzone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-input);
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--brand-primary);
    background-color: rgba(79, 70, 229, 0.05);
    transform: scale(1.01);
}

.upload-dropzone .upload-icon {
    font-size: 3rem;
    color: var(--brand-primary);
    margin-bottom: 1rem;
    transition: var(--transition-fast);
}

.upload-dropzone:hover .upload-icon {
    transform: translateY(-5px);
}

/* Password Strength Meter */
.strength-meter {
    height: 6px;
    background-color: var(--border-color);
    border-radius: var(--radius-pill);
    overflow: hidden;
    margin-top: 6px;
}

.strength-meter-bar {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease, background-color 0.3s ease;
}

/* --------------------------------------------------------------------------
   8. Buttons & Modals
   -------------------------------------------------------------------------- */
.btn {
    border-radius: var(--radius-md);
    padding: 0.55rem 1.25rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.btn-primary {
    background: var(--gradient-brand);
    border: none;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(135deg, #4338ca 0%, #0284c7 100%);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--gradient-warning);
    border: none;
    color: #ffffff;
}

.modal-content {
    background-color: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   9. Mobile Responsiveness & Drawer Animations
   -------------------------------------------------------------------------- */
@media (max-width: 991.98px) {
    .sidebar-wrapper {
        position: fixed;
        top: 64px;
        bottom: 0;
        left: -100%;
        box-shadow: var(--shadow-lg);
    }
    .sidebar-wrapper.show {
        left: 0;
    }
    .main-content {
        padding: 1rem;
    }
}

/* --------------------------------------------------------------------------
   10. Keyframe Animations & Skeletons
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--bg-input) 25%, var(--border-color) 50%, var(--bg-input) 75%);
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeletonLoading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}