/* ============================================================================
   FraudGuard - Professional Blue Design System
   ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Professional Blue Color Palette - Light Mode */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #0ce39c;
    --danger: #dc2626;
    --warning: #d97706;
    --info: #0891b2;

    /* Surface Colors - Light Mode */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-hover: #e2e8f0;

    /* Text Colors - Light Mode (High Contrast) */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-inverse: #ffffff;
    --text-muted: #94a3b8;

    /* Border Colors - Light Mode */
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --border-dark: #cbd5e1;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);

    /* Effects */
    --blur: blur(12px);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.25);
}

[data-theme="dark"] {
    /* Professional Blue Color Palette - Dark Mode */
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --primary-light: #60a5fa;
    --secondary: #94a3b8;
    --success: #0ce39c;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;

    /* Surface Colors - Dark Mode */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-hover: #475569;

    /* Text Colors - Dark Mode (High Contrast) */
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-tertiary: #cbd5e1;
    --text-inverse: #0f172a;
    --text-muted: #94a3b8;

    /* Border Colors - Dark Mode */
    --border: #334155;
    --border-light: #475569;
    --border-dark: #1e293b;

    /* Shadows - Dark Mode */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.7);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.8);

    /* Effects */
    --glass-bg: rgba(30, 41, 59, 0.85);
    --glass-border: rgba(148, 163, 184, 0.15);
}

/* ============================================================================
   Base Styles
   ============================================================================ */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1400px;
    padding: 0 2rem;
}

/* Typography with High Contrast */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
    font-weight: 600;
}

h5 {
    font-size: 1.25rem;
    font-weight: 600;
}

h6 {
    font-size: 1rem;
    font-weight: 600;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

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

small,
.small {
    color: var(--text-tertiary);
}

/* ============================================================================
   Cards
   ============================================================================ */

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    overflow: hidden;
}

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

.card-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.card-body {
    padding: 1.5rem;
    color: var(--text-primary);
}

.card-title {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

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

.card-footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
}

/* ============================================================================
   Navbar
   ============================================================================ */

.navbar {
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--primary) !important;
    letter-spacing: -0.02em;
}

.navbar-brand:hover {
    color: var(--primary-hover) !important;
}

.nav-link {
    color: white !important;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
    padding: 0.5rem 1rem !important;
    border-radius: 0.75rem;
    margin-right: 5px;
}

.nav-link:hover {
    color: var(--primary) !important;
    background: var(--bg-tertiary);
}

.navbar-toggler {
    border-color: var(--border);
    color: var(--text-primary);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15, 23, 42, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(248, 250, 252, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.dropdown-menu {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
}

.dropdown-item {
    color: var(--text-primary);
    border-radius: 0.5rem;
    padding: 0.625rem 1rem;
    transition: all 0.2s ease;
    font-size: 0.9375rem;
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.dropdown-item:active {
    background: var(--primary);
    color: var(--text-inverse);
}

.dropdown-divider {
    border-color: var(--border);
    margin: 0.5rem 0;
}

/* ============================================================================
   Theme Toggle
   ============================================================================ */

.theme-toggle-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 0.75rem;
    transition: all 0.2s ease;
}

.theme-toggle-wrapper:hover {
    background: var(--bg-hover);
}

.theme-toggle-wrapper i {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.form-check-input {
    width: 2.5rem;
    height: 1.25rem;
    background-color: var(--border-dark);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 8px;
}

.form-check-input:checked {
    background-color: var(--primary);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* ============================================================================
   Buttons
   ============================================================================ */

.btn {
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--text-inverse);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-primary:active {
    transform: translateY(0);
}

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

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

.btn-secondary {
    background: var(--secondary);
    color: var(--text-inverse);
    border: 1px solid var(--secondary);
}

.btn-secondary:hover {
    background: var(--text-tertiary);
    border-color: var(--text-tertiary);
    color: var(--text-inverse);
}

.btn-success {
    background: var(--success);
    color: white;
    border: 1px solid var(--success);
}

.btn-success:hover {
    background: #047857;
    border-color: #047857;
    color: var(--text-inverse);
}

.btn-danger {
    background: var(--danger);
    color: var(--text-inverse);
    border: 1px solid var(--danger);
}

.btn-danger:hover {
    background: #b91c1c;
    border-color: #b91c1c;
    color: var(--text-inverse);
}

.btn-warning {
    background: var(--warning);
    color: var(--text-inverse);
    border: 1px solid var(--warning);
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ============================================================================
   Forms
   ============================================================================ */

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-control,
.form-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-weight: 400;
    color: var(--text-primary);
    transition: all 0.2s ease;
    font-size: 0.9375rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--bg-secondary);
    color: var(--text-primary);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled,
.form-select:disabled {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    cursor: not-allowed;
}

.form-text {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.form-check-label {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.input-group-text {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-right: none;
    color: var(--text-secondary);
    border-radius: 0.5rem 0 0 0.5rem;
    font-weight: 500;
}

.input-group .form-control {
    border-left: none;
    border-radius: 0 0.5rem 0.5rem 0;
}

.input-group:focus-within .input-group-text {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--bg-secondary);
}

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

/* ============================================================================
   Stats Cards
   ============================================================================ */

.stat-card {
    text-align: center;
    padding: 1.5rem;
    position: relative;
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Balance Display - High Contrast */
.balance-display {
    font-size: 2.25rem;
    font-weight: 800;
    color: white !important;
    line-height: 1;
}

/* ============================================================================
   Charts
   ============================================================================ */

.chart-container {
    position: relative;
    height: 280px;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    margin: 1rem 0;
    border: 1px solid var(--border);
}

/* ============================================================================
   Credit Score
   ============================================================================ */

.credit-score-circle {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    font-weight: 800;
    margin: 1.5rem auto;
    box-shadow: var(--shadow-lg);
}

.credit-score-circle.excellent {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    color: white;
}

.credit-score-circle.good {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
}

.credit-score-circle.fair {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    color: white;
}

.credit-score-circle.poor {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
}

/* ============================================================================
   Data Type Buttons
   ============================================================================ */

.data-type-btn {
    padding: 1.25rem 1rem;
    border-radius: 0.5rem;
    border: 2px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.2s ease;
    text-align: center;
    cursor: pointer;
}

.data-type-btn i {
    font-size: 1.75rem;
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.data-type-btn span {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.data-type-btn:hover {
    border-color: var(--primary);
    background: var(--bg-tertiary);
}

.data-type-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.data-type-btn.active i,
.data-type-btn.active span {
    color: white;
}

/* ============================================================================
   Investment Items
   ============================================================================ */

.investment-item {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.investment-item:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-dark);
}

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

.investment-amount {
    color: var(--text-secondary);
}

.investment-return {
    font-weight: 700;
}

.investment-return.positive {
    color: var(--success);
}

.investment-return.negative {
    color: var(--danger);
}

/* ============================================================================
   Webcam & Modals
   ============================================================================ */

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 1.5rem;
    background: var(--bg-tertiary);
}

.modal-title {
    color: var(--text-primary);
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
    color: var(--text-primary);
}

.modal-footer {
    border-top: 1px solid var(--border);
    padding: 1rem 1.5rem;
    background: var(--bg-tertiary);
}

.btn-close {
    filter: brightness(0) saturate(100%) invert(0.2) sepia(0.1);
}

[data-theme="dark"] .btn-close {
    filter: brightness(0) saturate(100%) invert(1);
}

#webcam {
    width: 100%;
    max-width: 640px;
    height: auto;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
}

#faceCanvas {
    display: none;
}

.face-verify-icon {
    font-size: 5rem;
    color: var(--primary);
}

/* ============================================================================
   Chat Messages
   ============================================================================ */

.chat-container {
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    padding: 1.25rem;
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--border);
}

.chat-message {
    margin-bottom: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    max-width: 70%;
}

.chat-message.sender {
    background: var(--primary);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 0.25rem;
}

.chat-message.receiver {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    margin-right: auto;
    border-bottom-left-radius: 0.25rem;
}

/* ============================================================================
   Badges
   ============================================================================ */

.badge {
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.025em;
}

.bg-primary {
    background: var(--primary) !important;
    color: white !important;
}

.bg-success {
    background: var(--success) !important;
    color: white !important;
}

.bg-warning {
    background: var(--warning) !important;
    color: white !important;
}

.bg-danger {
    background: var(--danger) !important;
    color: white !important;
}

.bg-info {
    background: var(--info) !important;
    color: white !important;
}

/* ============================================================================
   Tables
   ============================================================================ */

.table {
    color: var(--text-primary);
    border-color: var(--border);
}

.table thead {
    border-bottom: 2px solid var(--border);
    background: var(--bg-tertiary);
}

.table th {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem;
}

.table td {
    color: var(--text-secondary);
    padding: 1rem;
}

.table tbody tr {
    border-bottom: 1px solid var(--border);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--bg-tertiary);
}

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

/* ============================================================================
   Alerts
   ============================================================================ */

.alert {
    border-radius: 0.5rem;
    border: 1px solid;
    padding: 1rem 1.25rem;
    font-size: 0.9375rem;
}

.alert-primary {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--primary);
    color: var(--text-primary);
}

.alert-success {
    background: rgba(5, 150, 105, 0.1);
    border-color: var(--success);
    color: var(--text-primary);
}

.alert-warning {
    background: rgba(217, 119, 6, 0.1);
    border-color: var(--warning);
    color: var(--text-primary);
}

.alert-danger {
    background: rgba(220, 38, 38, 0.1);
    border-color: var(--danger);
    color: var(--text-primary);
}

.alert-info {
    background: rgba(8, 145, 178, 0.1);
    border-color: var(--info);
    color: var(--text-primary);
}

/* ============================================================================
   List Groups
   ============================================================================ */

.list-group-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 1rem 1.25rem;
    transition: all 0.2s ease;
}

.list-group-item:hover {
    background: var(--bg-tertiary);
}

.list-group-item:first-child {
    border-top-left-radius: 0.5rem;
    border-top-right-radius: 0.5rem;
}

.list-group-item:last-child {
    border-bottom-left-radius: 0.5rem;
    border-bottom-right-radius: 0.5rem;
}

.list-group-flush .list-group-item {
    border-left: 0;
    border-right: 0;
}

/* ============================================================================
   Accordion
   ============================================================================ */

.accordion-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
}

.accordion-button {
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1rem 1.25rem;
    font-size: 0.9375rem;
}

.accordion-button:not(.collapsed) {
    background: var(--bg-tertiary);
    color: var(--primary);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    border-color: var(--primary);
}

.accordion-button::after {
    filter: brightness(0) saturate(100%);
}

[data-theme="dark"] .accordion-button::after {
    filter: brightness(0) saturate(100%) invert(1);
}

.accordion-body {
    padding: 1rem 1.25rem;
    color: var(--text-secondary);
}

/* ============================================================================
   Pagination
   ============================================================================ */

.pagination {
    gap: 0.25rem;
}

.page-link {
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
}

.page-link:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
    border-color: var(--border);
}

.page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* ============================================================================
   Footer
   ============================================================================ */

footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    margin-top: auto;
    color: var(--text-secondary);
    padding: 2rem 0;
}

footer h5,
footer h6 {
    color: var(--text-primary);
}

footer a {
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

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

/* ============================================================================
   Scrollbar
   ============================================================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-dark);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* ============================================================================
   Utilities
   ============================================================================ */

.text-muted {
    color: var(--text-muted) !important;
}

.text-primary {
    color: var(--primary) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

.text-success {
    color: var(--success) !important;
}

.text-danger {
    color: var(--danger) !important;
}

.text-warning {
    color: var(--warning) !important;
}

.text-info {
    color: var(--info) !important;
}

.bg-light {
    background: var(--bg-tertiary) !important;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================================
   Code Blocks
   ============================================================================ */

pre {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 1.25rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    border: 1px solid var(--border);
}

code {
    background: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.875em;
    color: var(--danger);
    font-family: 'Courier New', monospace;
}

pre code {
    background: transparent;
    color: var(--text-primary);
}

/* ============================================================================
   Financial Advisor Chatbot
   ============================================================================ */

.chatbot-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 200px);
    max-height: 800px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    overflow: hidden;
}

.chatbot-header {
    background: var(--primary);
    color: white;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chatbot-header-icon {
    font-size: 1.75rem;
}

.chatbot-header-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: white;
}

.chatbot-header-info p {
    font-size: 0.875rem;
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-message-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    animation: slideInMessage 0.3s ease-out;
}

@keyframes slideInMessage {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message-wrapper.user {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.chat-avatar.bot {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
}

.chat-avatar.user {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.chat-message-content {
    flex: 1;
    max-width: 75%;
}

.chat-message-wrapper.user .chat-message-content {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.chat-bubble {
    padding: 0.875rem 1.125rem;
    border-radius: 1rem;
    word-wrap: break-word;
    position: relative;
}

.chat-bubble p {
    margin: 0 0 0.5rem;
}

.chat-bubble p:last-child {
    color: white !important;
    margin-bottom: 0;
}

.chat-bubble ul {
    padding-left: 1.25rem;
    margin: 0.5rem 0 0 0;
}

.chat-bubble ul:first-child {
    margin-top: 0;
}

.chat-bubble.bot {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-top-left-radius: 0.25rem;
}

.chat-bubble.user {
    background: var(--primary);
    color: white;
    border-top-right-radius: 0.25rem;
}

.chat-timestamp {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.375rem;
}

.chat-message-wrapper.user .chat-timestamp {
    text-align: right;
}

.chat-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.chat-action-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.chat-action-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.chat-action-btn i {
    font-size: 0.875rem;
}

.youtube-recommendation {
    margin-top: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    overflow: hidden;
    background: var(--bg-secondary);
}

.youtube-thumbnail {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.youtube-info {
    padding: 0.875rem;
}

.youtube-title {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
    display: -webkit-box;
    line-clamp: 2;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.youtube-link {
    color: var(--primary);
    font-size: 0.875rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: color 0.2s ease;
}

.youtube-link:hover {
    color: var(--primary-hover);
}

.chatbot-input-area {
    padding: 1.25rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.chatbot-input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
}

.chatbot-input-group {
    flex: 1;
    position: relative;
}

.chatbot-textarea {
    width: 100%;
    min-height: 50px;
    max-height: 150px;
    padding: 0.875rem 3rem 0.875rem 1rem;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9375rem;
    resize: none;
    transition: all 0.2s ease;
}

.chatbot-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--bg-secondary);
}

.chatbot-textarea::placeholder {
    color: var(--text-muted);
}

.voice-input-btn {
    position: absolute;
    right: 0.75rem;
    bottom: 0.875rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0.375rem;
    border-radius: 0.375rem;
}

.voice-input-btn:hover {
    color: var(--primary);
    background: var(--bg-hover);
}

.voice-input-btn.recording {
    color: var(--danger);
    animation: pulseRecording 1.5s ease-in-out infinite;
}

@keyframes pulseRecording {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.chatbot-send-btn {
    padding: 0.875rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
}

.chatbot-send-btn:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.chatbot-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.875rem 1.125rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 1rem;
    border-top-left-radius: 0.25rem;
    width: fit-content;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: typingDot 1.4s ease-in-out infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingDot {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.7;
    }

    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

.chatbot-disclaimer {
    padding: 1rem 1.5rem;
    background: rgba(8, 145, 178, 0.1);
    border-top: 1px solid var(--border);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-align: center;
}

.chatbot-disclaimer i {
    color: var(--info);
    margin-right: 0.375rem;
}

.chatbot-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 2rem;
}

.chatbot-empty-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.chatbot-empty-state h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.chatbot-empty-state p {
    color: var(--text-secondary);
    max-width: 400px;
    margin-bottom: 1.5rem;
}

.chatbot-suggestions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    max-width: 600px;
}

.suggestion-chip {
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
}

.suggestion-chip:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* ============================================================================
   Responsive Design
   ============================================================================ */

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 1.875rem;
    }

    .balance-display {
        font-size: 1.875rem;
    }

    .card-body {
        padding: 1.25rem;
    }

    .chart-container {
        height: 220px;
    }

    .credit-score-circle {
        width: 140px;
        height: 140px;
        font-size: 2rem;
    }

    .data-type-btn {
        margin-bottom: 0.5rem;
    }

    .chat-message {
        max-width: 85%;
    }
}

@media (max-width: 576px) {
    .stat-value {
        font-size: 1.5rem;
    }

    .balance-display {
        font-size: 1.5rem;
    }

    h1 {
        font-size: 1.75rem;
    }
}