/**
 * VIIA Chat — Admin Design System & Stylesheet
 * Vibrant Dark Mode, Glassmorphism, Responsive Grid & Clean Typography
 */

:root {
    --bg-main: #0B0F19;
    --bg-card: #151C2C;
    --bg-sidebar: #0F1626;
    --bg-input: #1C263B;
    --bg-hover: #222E46;
    
    --primary: #3B82F6;
    --primary-hover: #2563EB;
    --primary-glow: rgba(59, 130, 246, 0.25);
    
    --secondary: #64748B;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #06B6D4;
    
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --text-dim: #64748B;
    
    --border-color: #1E293B;
    --border-light: #334155;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.mt-4 { margin-top: 1.5rem; }
.mb-3 { margin-bottom: 1rem; }

/* Login Screen */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(circle at top right, #1E1B4B, var(--bg-main));
    padding: 1.5rem;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
}

.brand-header {
    text-align: center;
    margin-bottom: 2rem;
}

.brand-header .logo-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), #8B5CF6);
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 1rem;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

.brand-header h2 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

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

.brand-header p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* Form Controls */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
}

.input-wrapper input {
    padding-left: 2.75rem;
}

.form-control, .form-select, input[type="text"], input[type="password"], input[type="email"], input[type="number"], select, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus, input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #2563EB);
    color: #fff;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563EB, #1D4ED8);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-hover);
    color: var(--text-main);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background-color: var(--border-light);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #FCA5A5;
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.3rem;
    font-weight: 800;
}

.brand-logo i {
    color: var(--primary);
    font-size: 1.5rem;
}

.client-selector-box {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.15);
}

.client-selector-box label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.sidebar-nav {
    padding: 1rem 0.75rem;
    flex: 1;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    transition: all 0.2s ease;
}

.nav-item i {
    font-size: 1.1rem;
    width: 20px;
}

.nav-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-main);
}

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

.badge {
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: auto;
}

.badge-warning {
    background-color: var(--warning);
    color: #000;
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8B5CF6, var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
}

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

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
}

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

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.topbar {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(15, 22, 38, 0.5);
    backdrop-filter: blur(10px);
}

.page-title h1 {
    font-size: 1.4rem;
    font-weight: 700;
}

.page-title p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-indicator .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.content-body {
    padding: 2rem;
    flex: 1;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Cards & Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.metric-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.metric-icon.purple { background: rgba(139, 92, 246, 0.15); color: #8B5CF6; }
.metric-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.metric-icon.blue { background: rgba(59, 130, 246, 0.15); color: var(--primary); }
.metric-icon.amber { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

.metric-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.metric-value {
    font-size: 1.8rem;
    font-weight: 800;
    margin: 0.1rem 0;
}

.metric-sub {
    font-size: 0.75rem;
}

.dashboard-charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.card-header h3 i {
    color: var(--primary);
}

.card-body {
    padding: 1.5rem;
}

/* Custom Chart CSS */
.chart-container {
    height: 220px;
    display: flex;
    align-items: flex-end;
    padding-top: 1rem;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    width: 100%;
    height: 100%;
    gap: 0.5rem;
}

.chart-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    height: 100%;
    justify-content: flex-end;
}

.bar-fill {
    width: 60%;
    max-width: 32px;
    background: linear-gradient(to top, var(--primary), #8B5CF6);
    border-radius: 4px 4px 0 0;
    transition: height 0.5s ease;
    min-height: 4px;
}

.bar-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.top-intents-list {
    list-style: none;
}

.top-intents-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

.top-intents-list li:last-child {
    border-bottom: none;
}

/* Tables */
.panel-action-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.search-box {
    position: relative;
    width: 320px;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
}

.search-box input {
    padding-left: 2.75rem;
}

.table-card {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    text-align: left;
}

.data-table th {
    padding: 1rem 1.25rem;
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

/* Tags & Badges */
.tag {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 0.25rem;
    margin-bottom: 0.25rem;
}

.tag-mandatory { background-color: rgba(239, 68, 68, 0.2); color: #FCA5A5; border: 1px solid rgba(239, 68, 68, 0.3); }
.tag-keyword { background-color: rgba(59, 130, 246, 0.2); color: #93C5FD; border: 1px solid rgba(59, 130, 246, 0.3); }
.tag-combination { background-color: rgba(139, 92, 246, 0.2); color: #DDD6FE; border: 1px solid rgba(139, 92, 246, 0.3); }
.tag-negative { background-color: rgba(100, 116, 139, 0.3); color: #CBD5E1; border: 1px solid rgba(100, 116, 139, 0.4); }

.badge-active { background-color: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge-inactive { background-color: rgba(239, 68, 68, 0.15); color: var(--danger); }

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.color-picker-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.color-picker-wrapper input[type="color"] {
    width: 42px;
    height: 42px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    background: none;
}

.code-box {
    background-color: #050811;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    position: relative;
    margin-top: 0.5rem;
}

.code-box pre {
    font-family: monospace;
    font-size: 0.85rem;
    color: var(--success);
    white-space: pre-wrap;
    word-break: break-all;
}

.btn-copy {
    position: absolute;
    right: 0.75rem;
    top: 0.75rem;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1001;
    width: 90%;
    max-width: 650px;
    max-height: 90vh;
    display: none;
}

.modal.modal-lg {
    max-width: 850px;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    max-height: 90vh;
    overflow: hidden;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    background-color: rgba(0, 0, 0, 0.15);
}

.form-row {
    display: flex;
    gap: 1rem;
}

.col-4 { flex: 4; }
.col-6 { flex: 6; }
.col-8 { flex: 8; }

/* Simulator Tab */
.simulator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    height: calc(100vh - 160px);
}

.simulator-chat-card, .simulator-debug-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-sim-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1rem;
    overflow: hidden;
}

.sim-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.sim-msg {
    display: flex;
    max-width: 80%;
}

.sim-msg.bot {
    align-self: flex-start;
}

.sim-msg.user {
    align-self: flex-end;
}

.sim-msg .bubble {
    padding: 0.85rem 1.1rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    line-height: 1.4;
}

.sim-msg.bot .bubble {
    background-color: var(--bg-input);
    color: var(--text-main);
    border-bottom-left-radius: 2px;
}

.sim-msg.user .bubble {
    background: linear-gradient(135deg, var(--primary), #2563EB);
    color: #fff;
    border-bottom-right-radius: 2px;
}

.sim-input-bar {
    display: flex;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.debug-body {
    flex: 1;
    overflow-y: auto;
}

.debug-group {
    margin-bottom: 1.25rem;
}

.debug-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.debug-group code {
    background-color: #050811;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--success);
    font-family: monospace;
    display: block;
}

.tokens-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tokens-list span {
    background-color: var(--bg-input);
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--info);
}

.debug-triggers {
    list-style: none;
    font-size: 0.85rem;
}

.debug-triggers li {
    padding: 0.4rem 0.6rem;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    margin-bottom: 0.3rem;
}

/* Info Banner */
.info-banner {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15));
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.info-banner i {
    font-size: 1.5rem;
    color: var(--primary);
}

.info-banner h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.info-banner p {
    font-size: 0.85rem;
    color: var(--text-muted);
}