:root {
    /* Color Palette - Premium Dark Mode */
    --bg-base: #0f172a;
    --bg-surface: #1e293b;
    --bg-surface-hover: #334155;
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #8b5cf6;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    
    /* Status Colors */
    --status-success: #10b981;
    --status-warning: #f59e0b;
    --status-danger: #ef4444;
    --status-info: #0ea5e9;
    --success: var(--status-success);
    --danger: var(--status-danger);
    
    /* Layout */
    --sidebar-width: 260px;
    --topbar-height: 70px;
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    overflow: hidden;
}

/* App Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    z-index: 10;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
}

.logo i {
    font-size: 24px;
}

.sidebar-nav {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.nav-item, .nav-item-external {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-item:hover, .nav-item-external:hover {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--text-main);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.sidebar-footer {
    padding: 24px 16px;
    border-top: 1px solid var(--border-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

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

.user-name {
    font-size: 14px;
    font-weight: 600;
}

.user-role {
    font-size: 12px;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* Topbar */
.topbar {
    height: var(--topbar-height);
    background-color: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    z-index: 5;
}

.search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    background-color: var(--bg-base);
    padding: 10px 16px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    width: 350px;
    transition: border-color 0.2s ease;
}

.search-bar:focus-within {
    border-color: var(--primary);
}

.search-bar input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    width: 100%;
    font-size: 14px;
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

.search-bar i {
    color: var(--text-muted);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    border: none;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

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

.btn-secondary {
    background: var(--bg-surface-hover);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: #475569;
}

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

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}

/* View Container */
.view-container {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
    scroll-behavior: smooth;
}

/* Common UI Elements */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.page-title {
    font-size: 24px;
    font-weight: 700;
}

/* Cards */
.card {
    background-color: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-main);
    font-size: 14px;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base); 
}
::-webkit-scrollbar-thumb {
    background: var(--border-color); 
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted); 
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-surface);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 16px;
}

/* Dashboard Specifics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

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

.metric-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.metric-info h3 {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 4px;
}

.metric-info .value {
    font-size: 24px;
    font-weight: 700;
}

/* Leads Table Specifics */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 16px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-new { background: rgba(59, 130, 246, 0.2); color: var(--primary); }
.badge-contacted { background: rgba(245, 158, 11, 0.2); color: var(--status-warning); }
.badge-qualified { background: rgba(139, 92, 246, 0.2); color: var(--secondary); }
.badge-proposal { background: rgba(14, 165, 233, 0.2); color: var(--status-info); }
.badge-won { background: rgba(16, 185, 129, 0.2); color: var(--status-success); }
.badge-lost { background: rgba(239, 68, 68, 0.2); color: var(--status-danger); }

/* Pipeline Specifics */
.pipeline-board {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    padding-bottom: 16px;
    height: calc(100vh - 200px);
}

.pipeline-col {
    min-width: 320px;
    width: 320px;
    background: rgba(30, 41, 59, 0.5);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.col-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.col-title {
    font-weight: 600;
    font-size: 15px;
}

.col-count {
    background: var(--bg-surface-hover);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

.col-body {
    padding: 16px;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.deal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 16px;
    cursor: grab;
    transition: transform 0.2s, box-shadow 0.2s;
}

.deal-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.deal-card:active {
    cursor: grabbing;
}

.deal-title {
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 15px;
}

.deal-company {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.deal-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dashed var(--border-color);
    padding-top: 12px;
}

.deal-value {
    font-weight: 600;
    color: var(--status-success);
}

/* Quotation Specifics */
.quote-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}

.quote-items-table th, .quote-items-table td {
    padding: 12px;
}

.quote-items-table input {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-main);
    width: 100%;
    padding: 8px;
    border-radius: 4px;
}

.quote-items-table input:hover, .quote-items-table input:focus {
    border-color: var(--border-color);
    background: var(--bg-base);
}

.quote-totals {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
}

.total-row {
    display: flex;
    justify-content: space-between;
    width: 300px;
    font-size: 15px;
}

.total-row.grand-total {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    padding-top: 12px;
    border-top: 1px dashed var(--border-color);
}

/* Bulletproof Click-Safe Icon Rules */
.btn i, button i, .btn svg, button svg, .icon-btn i, .icon-btn svg {
    pointer-events: none !important;
}

/* User & Session CSS extensions */

/* Login Page Styles */
.login-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at center, #1e293b 0%, #0f172a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.login-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.login-card {
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 520px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    text-align: center;
    animation: loginFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.login-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.login-logo-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.login-title {
    font-family: 'Nunito', sans-serif;
    font-size: 32px;
    font-weight: 900;
    letter-spacing: 0.5px;
    color: #ffffff;
    line-height: 1.1;
}

.login-subtitle {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary);
    text-transform: uppercase;
    margin-top: 4px;
}

.login-description {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 32px;
    line-height: 1.5;
}

/* Quick Switch / Profiles Grid */
.profiles-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 16px;
    text-align: left;
}

.profiles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.profile-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 16px 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.profile-card:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.15);
}

.profile-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 8px;
    font-size: 14px;
}

.profile-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.profile-role {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 6px;
    border-radius: 4px;
}

.profile-role.admin {
    background: rgba(139, 92, 246, 0.15);
    color: var(--secondary);
}

.profile-role.user {
    background: rgba(14, 165, 233, 0.15);
    color: var(--status-info);
}

.login-divider {
    display: flex;
    align-items: center;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.login-divider::before, .login-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.login-divider::before { margin-right: 16px; }
.login-divider::after { margin-left: 16px; }

/* Admin filter style */
.admin-filter-select {
    padding: 8px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-main);
    font-size: 13px;
    font-weight: 600;
    outline: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.admin-filter-select:hover, .admin-filter-select:focus {
    border-color: var(--primary);
    background: var(--bg-surface-hover);
}

/* User management specific styles */
.user-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.user-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease;
}

.user-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.user-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.user-card-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
}

.user-card-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.user-card-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    margin-top: 16px;
}

.stat-box {
    text-align: center;
}

.stat-val {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
}

.stat-lbl {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

.user-card-actions {
    position: absolute;
    top: 16px;
    right: 16px;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.btn-logout:hover {
    color: var(--status-danger);
    background: rgba(239, 68, 68, 0.1);
}

/* Toggle Switch Styles */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input { 
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-color);
  transition: .3s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--status-success);
}

input:focus + .slider {
  box-shadow: 0 0 1px var(--status-success);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* User Card password details display */
.user-card-password {
    font-family: monospace;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
    display: inline-block;
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-change-password-trigger {
    font-size: 12px;
    color: var(--primary);
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: color 0.2s;
    padding: 0;
    margin-top: 4px;
    text-align: left;
}

.btn-change-password-trigger:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}