/* -------------------------------------------------------------
 * ITS Solutions CRM — Global Styles & Design System
 * Modern Dark/Glassmorphism Aesthetic with CSS Variables
 * ------------------------------------------------------------- */

/* Reset & Variables */
:root {
    --bg-main: #09070f;
    --bg-card: rgba(22, 19, 39, 0.7);
    --bg-card-hover: rgba(32, 28, 56, 0.85);
    --bg-sidebar: #110d21;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-focus: rgba(108, 92, 231, 0.5);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary: #6c5ce7;
    --primary-hover: #5b4cc4;
    --primary-glow: rgba(108, 92, 231, 0.35);
    
    --success: #00b894;
    --success-bg: rgba(0, 184, 148, 0.15);
    
    --danger: #ff7675;
    --danger-bg: rgba(255, 118, 117, 0.15);
    
    --warning: #fdcb6e;
    --warning-bg: rgba(253, 203, 110, 0.15);
    
    --info: #0984e3;
    --info-bg: rgba(9, 132, 227, 0.15);

    --muted: #6c757d;
    --muted-bg: rgba(108, 117, 125, 0.15);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    --sidebar-width: 260px;
    --header-height: 70px;

    /* Theme adaptive variables */
    --bg-input: rgba(0, 0, 0, 0.25);
    --bg-sidebar-hover: rgba(255, 255, 255, 0.04);
    --bg-btn-secondary: rgba(255, 255, 255, 0.08);
    --bg-btn-secondary-hover: rgba(255, 255, 255, 0.12);
    --bg-card-border-hover: rgba(255, 255, 255, 0.12);
    --bg-table-hover: rgba(255, 255, 255, 0.015);
    --sidebar-logo-color: #fff;
    --theme-btn-hover: rgba(255, 255, 255, 0.1);
}

:root.light-theme-init, body.light-theme {
    --bg-main: #f3f4f6;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-sidebar: #ffffff;
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --border-color: rgba(0, 0, 0, 0.08);
    
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    
    --primary-glow: rgba(108, 92, 231, 0.15);
    --success-bg: rgba(0, 184, 148, 0.1);
    --danger-bg: rgba(255, 118, 117, 0.1);
    --warning-bg: rgba(253, 203, 110, 0.1);
    --info-bg: rgba(9, 132, 227, 0.1);
    --muted-bg: rgba(108, 117, 125, 0.1);

    --bg-input: rgba(255, 255, 255, 0.8);
    --bg-sidebar-hover: rgba(0, 0, 0, 0.03);
    --bg-btn-secondary: rgba(0, 0, 0, 0.05);
    --bg-btn-secondary-hover: rgba(0, 0, 0, 0.08);
    --bg-card-border-hover: rgba(0, 0, 0, 0.05);
    --bg-table-hover: rgba(0, 0, 0, 0.015);
    --sidebar-logo-color: #111827;
    --theme-btn-hover: rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
}

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

/* Page Layout */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 30px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Sidebar Navigation */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-brand {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand h3 span {
    color: var(--primary);
}

.sidebar-user {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 16px;
    flex: 1;
    overflow-y: auto;
}

.menu-header {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin: 20px 0 10px 8px;
}

.menu-item {
    margin-bottom: 6px;
}

.menu-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-fast);
}

.menu-link i {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.menu-link:hover, .menu-item.active .menu-link {
    color: var(--text-primary);
    background-color: var(--bg-sidebar-hover);
}

.menu-item.active .menu-link {
    color: #fff;
    background-color: var(--primary);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.sidebar-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
}

.logout-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--danger);
    font-weight: 500;
    padding: 10px 0;
}

.logout-btn:hover {
    color: #ff5252;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.page-subtitle {
    color: var(--text-secondary);
}

/* Glass Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    transition: var(--transition-normal);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--bg-card-border-hover);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 4px 15px var(--primary-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-btn-secondary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--bg-btn-secondary-hover);
    transform: translateY(-1px);
}

.btn-danger {
    background-color: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background-color: #e25858;
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--success);
    color: #fff;
}

.btn-success:hover {
    background-color: #009a7b;
    transform: translateY(-1px);
}

.btn-info {
    background-color: var(--info);
    color: #fff;
}

.btn-info:hover {
    background-color: #086ebc;
    transform: translateY(-1px);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 6px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background-color: var(--success-bg);
    color: var(--success);
}

.badge-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
}

.badge-warning {
    background-color: var(--warning-bg);
    color: var(--warning);
}

.badge-info {
    background-color: var(--info-bg);
    color: var(--info);
}

.badge-muted {
    background-color: var(--muted-bg);
    color: var(--text-secondary);
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 40px;
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th {
    padding: 16px 20px;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.table td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

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

.table tr:hover td {
    background-color: var(--bg-table-hover);
}

/* Login Page Structure */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: radial-gradient(circle at 10% 20%, rgba(108, 92, 231, 0.1) 0%, rgba(0, 0, 0, 0) 40%), var(--bg-main);
}

.login-card {
    width: 100%;
    max-width: 420px;
}

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

.login-header h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-header h2 span {
    color: var(--primary);
}

.login-header p {
    color: var(--text-secondary);
}

/* Flash Messages */
.alert {
    padding: 14px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    animation: fadeIn 0.3s ease;
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(0, 184, 148, 0.25);
}

.alert-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(255, 118, 117, 0.25);
}

/* Stats Widgets (Dashboard) */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-icon.primary { background: var(--primary-glow); color: var(--primary); }
.stat-icon.success { background: var(--success-bg); color: var(--success); }
.stat-icon.danger { background: var(--danger-bg); color: var(--danger); }
.stat-icon.warning { background: var(--warning-bg); color: var(--warning); }

.stat-details {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 2px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Grid Layout helper */
.grid-2 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.theme-toggle:hover {
    color: var(--text-primary);
    background-color: var(--theme-btn-hover);
}

/* Mobile Header (Hidden on Desktop) */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background-color: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    z-index: 90;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}

.mobile-brand {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.mobile-brand span {
    color: var(--primary);
}

.mobile-menu-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 95;
}

.sidebar-overlay.active {
    display: block;
}

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

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 80px 20px 20px 20px;
    }
    
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: 100;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .page-header .btn, .page-header form {
        width: 100%;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Biometric Login styling */
.biometric-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    margin: 20px 0;
}

.biometric-divider::before,
.biometric-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.biometric-divider:not(:empty)::before {
    margin-right: .5em;
}

.biometric-divider:not(:empty)::after {
    margin-left: .5em;
}

.btn-biometric {
    background-color: rgba(255, 255, 255, 0.02) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    transition: all 0.2s ease;
}

.btn-biometric:hover:not(:disabled) {
    background-color: rgba(108, 92, 231, 0.08) !important;
    border-color: var(--primary) !important;
    color: var(--primary) !important;
}

.btn-biometric i {
    color: var(--primary);
    transition: transform 0.2s ease;
}

.btn-biometric:hover:not(:disabled) i {
    transform: scale(1.1);
}

.btn-biometric:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}