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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --bg-dark: #030712;
    --bg-darker: #000000;
    --bg-card: #0a0f1a;
    --text-primary: #ffffff;
    --text-secondary: #6b7280;
    --border-color: #111827;
    --shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.8);
}

body {
    font-family: 'Courier New', 'Monaco', 'Menlo', 'Consolas', monospace;
    background: var(--bg-darker);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 10px;
    padding-bottom: 20px;
    line-height: 1.3;
    font-size: 12px;
    font-weight: 700;
    overflow-x: hidden;
    overflow-y: auto;
}

/* Header - Full Width */
.header {
    background: var(--bg-card);
    border-radius: 3px;
    padding: 12px 16px;
    margin-bottom: 10px;
    box-shadow: var(--shadow);
    border: 3px solid var(--border-color);
}

.header h1 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.status-indicators {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-label {
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border: 2px solid transparent;
}

.status-badge.connected {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.status-badge.disconnected {
    background: #1f2937;
    color: white;
    border-color: #1f2937;
}

.status-badge.ready {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.status-badge.not-ready {
    background: #1f2937;
    color: white;
    border-color: #1f2937;
}

.status-badge.user {
    background: var(--info-color);
    color: white;
    border-color: var(--info-color);
}

.status-badge.ai {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.status-badge.idle {
    background: #1f2937;
    color: white;
    border-color: #1f2937;
}

/* 3-Column Layout */
.main-layout {
    display: grid;
    grid-template-columns: 280px 1fr 350px;
}

.main-layout.main-layout-two-col {
    grid-template-columns: 1fr 350px;
    gap: 10px;
    min-height: 500px;
    max-height: calc(100vh - 160px);
}

.main-layout-two-col .column-middle {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
}

.main-layout-two-col .controls-panel,
.main-layout-two-col .metrics-panel,
.main-layout-two-col .pipeline-panel {
    flex: 0 0 auto;
}

.main-layout-two-col .logs-panel {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    max-height: none !important;
    overflow: hidden;
    margin-bottom: 0;
}

.main-layout-two-col .logs-panel .panel-header {
    flex: 0 0 auto;
}

.main-layout-two-col .logs-container {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
}

.main-layout-two-col .column-right {
    height: 100%;
    overflow: hidden;
}

.main-layout-two-col .column-right .panel {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.main-layout-two-col .column-right .conversation-container {
    flex: 1;
    overflow-y: auto;
}

.column {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.column-left {
    overflow-y: auto;
}

.column-middle {
    overflow-y: auto;
    gap: 10px;
}

.column-right {
    overflow: hidden;
}

/* Panel Styles */
.panel {
    background: var(--bg-card);
    border-radius: 3px;
    padding: 12px;
    box-shadow: var(--shadow);
    border: 3px solid var(--border-color);
}

.panel h2 {
    font-size: 12px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.panel-header h2 {
    margin-bottom: 0;
}

/* Call List (Left Column) */
.calls-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.call-item {
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 3px;
    padding: 10px;
    cursor: pointer;
    transition: all 0.2s;
}

.call-item:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.call-item.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.2);
}

.call-sid {
    font-size: 10px;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.call-time {
    font-size: 9px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.call-status {
    font-size: 8px;
    padding: 2px 6px;
    border-radius: 2px;
    display: inline-block;
    text-transform: uppercase;
    font-weight: 900;
}

.call-status.active {
    background: var(--success-color);
    color: white;
}

.call-status.completed {
    background: var(--text-secondary);
    color: white;
}

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

/* Controls Panel */
.controls-panel {
    margin-bottom: 10px;
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
}

.btn {
    padding: 10px 16px;
    border: 3px solid transparent;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 900;
    cursor: pointer;
    transition: all 0.1s;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: var(--shadow);
    font-family: 'Courier New', 'Monaco', 'Menlo', 'Consolas', monospace;
}

.btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px -2px rgba(0, 0, 0, 0.8);
    border-color: currentColor;
}

.btn:active:not(:disabled) {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
}

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

.btn-secondary {
    background: #1f2937;
    color: white;
    border-color: #1f2937;
}

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

.btn-warning {
    background: var(--warning-color);
    color: white;
    border-color: var(--warning-color);
}

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

.btn-info {
    background: var(--info-color);
    color: white;
    border-color: var(--info-color);
}

.btn-icon {
    padding: 6px 10px;
    font-size: 14px;
    min-width: auto;
}

/* Metrics Panel */
.metrics-panel {
    margin-bottom: 10px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 8px;
}

.metric-card {
    background: var(--bg-dark);
    border-radius: 3px;
    padding: 10px;
    border: 3px solid var(--border-color);
    text-align: center;
}

.metric-label {
    font-size: 9px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 6px;
    font-weight: 900;
}

.metric-value {
    font-size: 24px;
    font-weight: 900;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.metric-value.error {
    color: var(--danger-color);
}

/* Pipeline Panel */
.pipeline-panel {
    margin-bottom: 10px;
}

.pipeline-viz {
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 2px;
    padding: 8px;
    min-height: 140px;
}

.pipeline-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.pipeline-label {
    font-size: 7px;
    font-weight: 900;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    min-width: 60px;
}

.pipeline-arrow {
    text-align: center;
    font-size: 14px;
    color: var(--border-color);
    font-weight: 900;
    margin: 2px 0;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* RMS Meter */
.rms-meter {
    flex: 1;
    height: 14px;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.rms-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color), var(--warning-color), var(--danger-color));
    width: 0%;
    transition: width 0.1s ease-out;
}

.rms-value {
    position: absolute;
    right: 2px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 6px;
    font-weight: 900;
    color: var(--text-primary);
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
}

/* Pipeline Stages */
.pipeline-stages {
    flex: 1;
    display: flex;
    gap: 4px;
}

.pipeline-node {
    flex: 1;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 2px;
    padding: 4px;
    text-align: center;
    transition: all 0.3s ease;
    min-height: 38px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.pipeline-node-full {
    width: 100%;
}

.pipeline-node.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.3);
    animation: glow 1.5s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 12px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.6); }
}

.node-name {
    font-size: 7px;
    font-weight: 900;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.node-state {
    font-size: 6px;
    font-weight: 900;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.node-state.speaking,
.node-state.processing,
.node-state.thinking,
.node-state.streaming,
.node-state.synthesizing {
    color: var(--success-color);
}

.node-state.complete {
    color: var(--info-color);
}

.node-state.incomplete {
    color: var(--warning-color);
}

.node-state.transcript_received {
    color: var(--info-color);
}

.node-transcript {
    font-size: 6px;
    color: var(--text-secondary);
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-top: 2px;
}

.node-flags {
    display: flex;
    gap: 2px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2px;
}

.flag {
    font-size: 6px;
    padding: 1px 4px;
    background: var(--primary-color);
    color: white;
    border-radius: 2px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.flag.hidden {
    display: none;
}

/* Logs Panel */
.logs-panel {
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    max-height: 400px;
}

.logs-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.logs-controls label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 10px;
    cursor: pointer;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.logs-controls select {
    background: var(--bg-dark);
    color: var(--text-primary);
    border: 3px solid var(--border-color);
    border-radius: 2px;
    padding: 4px 10px;
    font-size: 10px;
    cursor: pointer;
    font-family: 'Courier New', 'Monaco', 'Menlo', 'Consolas', monospace;
    font-weight: 900;
    text-transform: uppercase;
}

.logs-container {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-dark);
    border-radius: 3px;
    padding: 10px;
    border: 3px solid var(--border-color);
    font-family: 'Courier New', 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 10px;
    line-height: 1.5;
    font-weight: 700;
}

.log-entry {
    padding: 6px 10px;
    margin-bottom: 3px;
    border-radius: 2px;
    border-left: 4px solid transparent;
    word-wrap: break-word;
    animation: fadeIn 0.1s ease-in;
    font-weight: 700;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateX(-5px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.log-entry.agent_ready {
    background: rgba(16, 185, 129, 0.2);
    border-left-color: var(--success-color);
    color: var(--success-color);
}

.log-entry.turn_changed {
    background: rgba(99, 102, 241, 0.2);
    border-left-color: var(--primary-color);
    color: var(--primary-color);
}

.log-entry.transcript {
    background: rgba(59, 130, 246, 0.2);
    border-left-color: var(--info-color);
    color: var(--info-color);
}

.log-entry.llm {
    background: rgba(139, 92, 246, 0.2);
    border-left-color: var(--secondary-color);
    color: var(--secondary-color);
}

.log-entry.audio {
    background: rgba(245, 158, 11, 0.2);
    border-left-color: var(--warning-color);
    color: var(--warning-color);
}

.log-entry.error {
    background: rgba(239, 68, 68, 0.2);
    border-left-color: var(--danger-color);
    color: var(--danger-color);
}

.log-entry.interruption {
    background: rgba(239, 68, 68, 0.2);
    border-left-color: var(--danger-color);
    color: var(--danger-color);
}

.log-entry.default {
    background: rgba(148, 163, 184, 0.1);
    border-left-color: var(--text-secondary);
    color: var(--text-secondary);
}

.log-timestamp {
    color: var(--text-secondary);
    font-size: 8px;
    margin-right: 8px;
    font-weight: 900;
}

.log-type {
    font-weight: 900;
    text-transform: uppercase;
    margin-right: 8px;
    font-size: 9px;
    letter-spacing: 1.5px;
}

.log-content {
    color: var(--text-primary);
    font-weight: 700;
}

/* Conversation Panel (Right Column) */
.conversation-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.call-id-badge {
    font-size: 9px;
    padding: 4px 8px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 2px;
    color: var(--text-secondary);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.conversation-container {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-dark);
    border: 3px solid var(--border-color);
    border-radius: 3px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.conversation-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    text-align: center;
}

/* Conversation Messages */
.conversation-message {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: 3px;
    background: var(--bg-darker);
    animation: messageAppear 0.2s ease-out;
}

@keyframes messageAppear {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.message-role {
    font-size: 8px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 2px 6px;
    border-radius: 2px;
    border: 2px solid;
}

.message-role.user {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
}

.message-role.assistant {
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
}

.message-role.system {
    color: var(--warning-color);
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
}

.message-role.tool {
    color: var(--info-color);
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--info-color);
}

.message-timestamp {
    font-size: 8px;
    color: var(--text-secondary);
    font-weight: 700;
}

.message-content {
    color: var(--text-primary);
    font-size: 10px;
    line-height: 1.5;
    font-weight: 700;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message-latencies {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.latency-badge {
    font-size: 7px;
    font-weight: 900;
    padding: 2px 4px;
    border-radius: 2px;
    border: 1px solid;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.latency-badge.vad {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary-color);
}

.latency-badge.stt {
    color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success-color);
}

.latency-badge.td {
    color: var(--info-color);
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--info-color);
}

.latency-badge.llm {
    color: var(--warning-color);
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning-color);
}

.latency-badge.tts {
    color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
}

.message-tool-info {
    margin-top: 4px;
    padding: 6px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 2px;
    font-size: 8px;
    color: var(--text-secondary);
}

.tool-name {
    font-weight: 900;
    color: var(--info-color);
    text-transform: uppercase;
}

/* Scrollbar Styling */
.logs-container::-webkit-scrollbar,
.conversation-container::-webkit-scrollbar,
.calls-list::-webkit-scrollbar,
.column-left::-webkit-scrollbar,
.column-middle::-webkit-scrollbar {
    width: 6px;
}

.logs-container::-webkit-scrollbar-track,
.conversation-container::-webkit-scrollbar-track,
.calls-list::-webkit-scrollbar-track,
.column-left::-webkit-scrollbar-track,
.column-middle::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 3px;
}

.logs-container::-webkit-scrollbar-thumb,
.conversation-container::-webkit-scrollbar-thumb,
.calls-list::-webkit-scrollbar-thumb,
.column-left::-webkit-scrollbar-thumb,
.column-middle::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.logs-container::-webkit-scrollbar-thumb:hover,
.conversation-container::-webkit-scrollbar-thumb:hover,
.calls-list::-webkit-scrollbar-thumb:hover,
.column-left::-webkit-scrollbar-thumb:hover,
.column-middle::-webkit-scrollbar-thumb:hover {
    background: #1f2937;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-layout {
        grid-template-columns: 250px 1fr 320px;
    }
}

@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .column-left,
    .column-right {
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 8px;
        font-size: 11px;
    }

    .header h1 {
        font-size: 16px;
    }

    .main-layout {
        gap: 8px;
    }

    .controls-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .btn {
        padding: 8px 12px;
        font-size: 10px;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .metric-value {
        font-size: 20px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 6px;
        font-size: 10px;
    }

    .header {
        padding: 10px;
    }

    .header h1 {
        font-size: 14px;
    }

    .controls-grid,
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .status-indicators {
        flex-direction: column;
        gap: 8px;
    }
}

/* ==================== TAB NAVIGATION ==================== */

.tab-nav {
    display: flex;
    gap: 4px;
    margin-bottom: 10px;
    background: var(--bg-card);
    padding: 6px;
    border-radius: 3px;
    border: 3px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 10px 16px;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 2px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tab-btn:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

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

.tab-icon {
    font-size: 14px;
}

/* Tab Content */
.tab-content {
    display: none;
}

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

/* ==================== CALL LOGS TAB ==================== */

.call-logs-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 10px;
    min-height: 500px;
    max-height: calc(100vh - 180px);
}

.call-logs-sidebar {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.call-logs-sidebar .panel {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.call-logs-sidebar .calls-list {
    flex: 1;
    overflow-y: auto;
}

.call-logs-main {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.call-log-viewer-panel {
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Search Input */
.call-search {
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 11px;
    font-weight: 700;
}

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

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Filter Select */
.filter-select {
    padding: 8px 12px;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Call Info Section */
.call-info-section {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    background: rgba(99, 102, 241, 0.05);
}

.call-info-section.hidden {
    display: none;
}

.call-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.call-info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-size: 9px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 900;
}

.info-value {
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 700;
}

/* Log Viewer Controls */
.log-viewer-controls {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
}

.log-viewer-controls .search-input {
    flex: 1;
}

/* Call Log Viewer */
.call-log-viewer {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.call-log-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Call Log Entry */
.call-log-entry {
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    margin-bottom: 8px;
    overflow: hidden;
}

.log-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border-color);
}

.log-entry-type {
    font-size: 9px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 2px 8px;
    border-radius: 2px;
}

.log-entry-type.user {
    background: var(--info-color);
    color: white;
}

.log-entry-type.assistant {
    background: var(--success-color);
    color: white;
}

.log-entry-type.system {
    background: var(--text-secondary);
    color: white;
}

.log-entry-type.tool {
    background: var(--warning-color);
    color: black;
}

.log-entry-type.error {
    background: var(--danger-color);
    color: white;
}

.log-entry-timestamp {
    font-size: 10px;
    color: var(--text-secondary);
}

.log-entry-content {
    padding: 10px 12px;
    font-size: 12px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.log-entry-metadata {
    border-top: 1px solid var(--border-color);
    padding: 8px 12px;
}

.log-entry-metadata summary {
    cursor: pointer;
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.log-entry-metadata pre {
    margin-top: 8px;
    font-size: 10px;
    color: var(--text-secondary);
    overflow-x: auto;
}

/* Call Log Entry by type */
.call-log-entry.user {
    border-left: 3px solid var(--info-color);
}

.call-log-entry.assistant {
    border-left: 3px solid var(--success-color);
}

.call-log-entry.system {
    border-left: 3px solid var(--text-secondary);
}

.call-log-entry.tool {
    border-left: 3px solid var(--warning-color);
}

.call-log-entry.error {
    border-left: 3px solid var(--danger-color);
}

/* Responsive for Call Logs Tab */
@media (max-width: 1024px) {
    .call-logs-layout {
        grid-template-columns: 280px 1fr;
    }

    .call-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .call-logs-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .call-logs-sidebar {
        max-height: 250px;
    }

    .call-info-grid {
        grid-template-columns: 1fr;
    }

    .log-viewer-controls {
        flex-direction: column;
    }
}

/* Debug Controls - Fallback Testing */
.debug-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.debug-label {
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-right: 4px;
}

.btn-debug {
    padding: 4px 10px;
    font-size: 10px;
    font-weight: 900;
    border-radius: 2px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn-debug.btn-tts {
    background: #7c3aed;
    color: white;
    border-color: #7c3aed;
}

.btn-debug.btn-tts:hover {
    background: #6d28d9;
    border-color: #6d28d9;
}

.btn-debug.btn-stt {
    background: #14b8a6;
    color: white;
    border-color: #14b8a6;
}

.btn-debug.btn-stt:hover {
    background: #0d9488;
    border-color: #0d9488;
}

.btn-debug.btn-llm {
    background: #1f2937;
    color: #9ca3af;
    border-color: #374151;
}

.btn-debug.btn-llm:hover {
    background: #374151;
    color: white;
}

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

.btn-debug.success {
    background: var(--success-color) !important;
    border-color: var(--success-color) !important;
    color: white !important;
}

.btn-debug.error {
    background: var(--danger-color) !important;
    border-color: var(--danger-color) !important;
    color: white !important;
}

/* Provider Badge */
.provider-badge {
    padding: 4px 10px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: #1f2937;
    color: #9ca3af;
    border: 2px solid #374151;
    margin-left: auto;
}

.provider-badge.provider-elevenlabs {
    background: #10b981;
    color: white;
    border-color: #10b981;
}

.provider-badge.provider-playht {
    background: #f59e0b;
    color: white;
    border-color: #f59e0b;
}

.provider-badge.provider-cartesia {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

.provider-badge.provider-openai {
    background: #6366f1;
    color: white;
    border-color: #6366f1;
}

/* STT Provider colors */
.provider-badge.provider-deepgram {
    background: #14b8a6;
    color: white;
    border-color: #14b8a6;
}

.provider-badge.provider-azure {
    background: #0078d4;
    color: white;
    border-color: #0078d4;
}

.provider-badge.provider-google {
    background: #ea4335;
    color: white;
    border-color: #ea4335;
}

/* ============================================
   CHAT TESTER STYLES - ChatGPT/Claude Style
   ============================================ */

.chat-container {
    display: flex;
    flex-direction: column;
    min-height: 500px;
    max-height: calc(100vh - 180px);
    max-width: 900px;
    margin: 0 auto;
    padding: 0 15px;
    overflow: hidden;
}

/* Chat Header */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 2px solid var(--border-color);
    flex-shrink: 0;
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-title {
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.chat-header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-metrics-inline {
    display: flex;
    gap: 15px;
}

.metric-inline {
    font-size: 10px;
    color: var(--text-secondary);
}

.metric-label-inline {
    font-weight: 700;
}

/* Flow Status Bar */
.chat-flow-status {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 10px 20px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(59, 130, 246, 0.15));
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.chat-flow-status.hidden {
    display: none;
}

.flow-status-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.flow-label {
    font-size: 10px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.flow-value {
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 500;
}

.node-badge {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

.transition-badge {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
}

/* ============================================
   FLOW EVENT BLOCKS - Crystal Clear Design
   ============================================ */

.flow-event-block {
    margin: 16px 0;
    border-radius: 8px;
    border: 2px solid;
    overflow: hidden;
    animation: messageAppear 0.3s ease-out;
    max-width: 90%;
}

.flow-event-transition {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
}

.flow-event-end {
    border-color: var(--danger-color);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
    align-self: center;
}

.flow-event-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.flow-event-icon {
    font-size: 16px;
}

.flow-event-title {
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-primary);
}

.flow-event-count {
    margin-left: auto;
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 8px;
    border-radius: 10px;
}

.flow-event-content {
    padding: 14px;
}

.flow-event-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.flow-event-row:first-child {
    margin-top: 0;
}

.flow-event-label {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    min-width: 70px;
}

.flow-event-value {
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 500;
}

.flow-event-value.edge-label {
    color: var(--warning-color);
    font-style: italic;
}

/* Transition Visual - Node boxes with arrow */
.flow-event-transition-visual {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
}

.flow-node-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 16px;
    border-radius: 6px;
    border: 2px solid;
    min-width: 100px;
    text-align: center;
}

.flow-node-box.from-node {
    background: rgba(107, 114, 128, 0.2);
    border-color: var(--text-secondary);
}

.flow-node-box.to-node {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
}

.flow-node-box .node-icon {
    font-size: 18px;
    margin-bottom: 4px;
}

.flow-node-box .node-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
}

.flow-node-box .node-type {
    font-size: 9px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-top: 2px;
    letter-spacing: 1px;
}

.flow-arrow {
    display: flex;
    align-items: center;
    color: var(--primary-color);
}

.flow-arrow .arrow-line {
    font-size: 12px;
    letter-spacing: -2px;
}

.flow-arrow .arrow-head {
    font-size: 14px;
    margin-left: -2px;
}

/* Legacy transition indicator (keep for backwards compat) */
.flow-transition-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    margin: 8px auto;
    background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.2), transparent);
    border-radius: 20px;
    font-size: 11px;
    color: var(--text-secondary);
}

.flow-transition-indicator .transition-icon {
    margin: 0 8px;
    color: var(--primary-color);
}

.flow-transition-indicator .node-name {
    color: var(--primary-color);
    font-weight: 600;
}

/* Chat Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: opacity 0.15s ease-in-out;
}

/* Welcome Screen */
.chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
}

.welcome-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.welcome-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.welcome-subtext {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Chat Message Bubbles */
.chat-bubble {
    display: flex;
    flex-direction: column;
    max-width: 80%;
    animation: messageAppear 0.2s ease-out;
}

.chat-bubble.user {
    align-self: flex-end;
}

.chat-bubble.assistant {
    align-self: flex-start;
}

.chat-bubble-content {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 13px;
    line-height: 1.5;
    white-space: pre-wrap;
}

.chat-bubble.user .chat-bubble-content {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-bubble.assistant .chat-bubble-content {
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

.chat-bubble.assistant.streaming .chat-bubble-content {
    border-color: var(--warning-color);
}

.chat-bubble.assistant.streaming .chat-bubble-content::after {
    content: '▊';
    animation: blink 1s infinite;
    color: var(--warning-color);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Message Metadata */
.chat-bubble-meta {
    display: flex;
    gap: 12px;
    padding: 4px 8px;
    font-size: 9px;
    color: var(--text-secondary);
}

.chat-bubble.user .chat-bubble-meta {
    justify-content: flex-end;
}

.chat-bubble.assistant .chat-bubble-meta {
    justify-content: flex-start;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.meta-label {
    font-weight: 700;
    text-transform: uppercase;
}

.meta-value {
    color: var(--info-color);
}

/* Tool Call Expandable Box */
.tool-call-box {
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    margin: 8px 0;
    overflow: hidden;
    max-width: 80%;
    align-self: flex-start;
    animation: messageAppear 0.2s ease-out;
}

.tool-call-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    cursor: pointer;
    background: var(--bg-dark);
    transition: background 0.2s;
}

.tool-call-header:hover {
    background: var(--border-color);
}

.tool-call-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-call-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.tool-call-name {
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-color);
}

.tool-call-status {
    font-size: 9px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 700;
    text-transform: uppercase;
}

.tool-call-status.executing {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.tool-call-status.complete {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success-color);
}

.tool-call-status.failed {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
}

.tool-call-expand {
    font-size: 10px;
    color: var(--text-secondary);
    transition: transform 0.2s;
}

.tool-call-box.expanded .tool-call-expand {
    transform: rotate(180deg);
}

.tool-call-details {
    display: none;
    padding: 12px 14px;
    border-top: 1px solid var(--border-color);
    font-size: 10px;
}

.tool-call-box.expanded .tool-call-details {
    display: block;
}

.tool-detail-section {
    margin-bottom: 10px;
}

.tool-detail-section:last-child {
    margin-bottom: 0;
}

.tool-detail-label {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.tool-detail-content {
    background: var(--bg-dark);
    padding: 8px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-primary);
    max-height: 150px;
    overflow-y: auto;
}

/* Chat Input Container */
.chat-input-container {
    padding: 16px 0;
    border-top: 2px solid var(--border-color);
    flex-shrink: 0;
}

.chat-input-wrapper {
    display: flex;
    align-items: flex-end;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 24px;
    padding: 8px 8px 8px 16px;
    transition: border-color 0.2s;
}

.chat-input-wrapper:focus-within {
    border-color: var(--primary-color);
}

.chat-input-wrapper textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
    resize: none;
    max-height: 150px;
    padding: 4px 0;
}

.chat-input-wrapper textarea:focus {
    outline: none;
}

.chat-input-wrapper textarea::placeholder {
    color: var(--text-secondary);
}

.chat-send-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary-color);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    flex-shrink: 0;
}

.chat-send-btn:hover {
    background: #4f46e5;
}

.chat-send-btn:active {
    transform: scale(0.95);
}

.chat-send-btn:disabled {
    background: var(--border-color);
    cursor: not-allowed;
}

.chat-send-btn svg {
    width: 18px;
    height: 18px;
}

/* Button small variant */
.btn-sm {
    padding: 6px 12px;
    font-size: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .chat-container {
        padding: 0 10px;
    }

    .chat-bubble {
        max-width: 90%;
    }

    .tool-call-box {
        max-width: 90%;
    }

    .chat-metrics-inline {
        display: none;
    }
}

/* ============================================
   SIMULATION TAB STYLES
   ============================================ */

.simulation-layout {
    display: grid;
    grid-template-columns: 520px 1fr;
    gap: 20px;
    min-height: 600px;
    padding: 0 5px;
}

.simulation-config-panel {
    max-height: calc(100vh - 180px);
    overflow-y: auto;
    overflow-x: hidden;
}

.simulation-config-panel::-webkit-scrollbar {
    width: 8px;
}

.simulation-config-panel::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 4px;
}

.simulation-config-panel::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.simulation-config-panel::-webkit-scrollbar-thumb:hover {
    background: #374151;
}

.simulation-config-panel .panel {
    min-height: fit-content;
}

.simulation-results-panel {
    max-height: calc(100vh - 180px);
    overflow: hidden;
}

.simulation-results-panel .panel {
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Config Sections */
.config-section {
    padding: 20px 24px;
    border-bottom: 2px solid var(--border-color);
}

.config-section:last-of-type {
    border-bottom: none;
}

.config-section h3 {
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary-color);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.3);
}

/* Radio Options */
.config-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.radio-option:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-color);
}

.radio-option input[type="radio"] {
    accent-color: var(--primary-color);
}

.radio-option span {
    font-size: 11px;
    color: var(--text-primary);
}

/* Custom Input (for JSON paste) */
.custom-input {
    margin-top: 12px;
}

.custom-input textarea {
    width: 100%;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 10px;
    resize: vertical;
}

.custom-input textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Form Groups */
.form-group {
    margin-bottom: 18px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea {
    width: 100%;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:hover,
.form-group textarea:hover {
    border-color: #374151;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group textarea {
    resize: vertical;
    line-height: 1.6;
    min-height: 80px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

/* Form Hint */
.form-hint {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 6px;
    font-style: italic;
    line-height: 1.4;
}

/* Steps Container */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px;
}

.steps-container::-webkit-scrollbar {
    width: 6px;
}

.steps-container::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 3px;
}

.steps-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.step-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.03));
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.step-item:hover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
    transform: translateX(2px);
}

.step-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 900;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.step-remove-btn {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.1);
    border: 2px solid rgba(239, 68, 68, 0.3);
    border-radius: 6px;
    color: var(--danger-color);
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    transition: all 0.2s ease;
}

.step-remove-btn:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
    color: white;
    transform: scale(1.1);
}

.step-input {
    width: 100%;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 12px;
    transition: all 0.2s ease;
}

.step-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.step-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Add Step Button */
.btn-add-step {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.05));
    border: 2px dashed var(--border-color);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.btn-add-step:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.1));
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: none;
}

.btn-add-step .btn-icon {
    font-size: 16px;
    font-weight: 900;
}

/* Config Actions */
.config-actions {
    padding: 24px;
    background: linear-gradient(180deg, transparent, rgba(99, 102, 241, 0.05));
    border-top: 1px solid var(--border-color);
}

.btn-lg {
    width: 100%;
    padding: 18px 24px;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    transition: all 0.2s ease;
}

.btn-lg:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-lg:active:not(:disabled) {
    transform: translateY(0);
}

.btn-lg .btn-icon {
    font-size: 16px;
}

/* Simulation Status */
#simStatus.running {
    background: var(--warning-color);
    color: var(--bg-dark);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Results Summary */
.sim-results-summary {
    padding: 20px 24px;
    border-bottom: 2px solid var(--border-color);
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.2), transparent);
}

.sim-result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.sim-result-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    border-radius: 10px;
    font-weight: 900;
}

.sim-result-badge.passed {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(16, 185, 129, 0.1));
    border: 2px solid var(--success-color);
    color: var(--success-color);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.sim-result-badge.failed {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(239, 68, 68, 0.1));
    border: 2px solid var(--danger-color);
    color: var(--danger-color);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.2);
}

.sim-result-badge .result-icon {
    font-size: 28px;
}

.sim-result-badge .result-text {
    font-size: 16px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.sim-result-stats {
    display: flex;
    gap: 24px;
}

.stat-item {
    text-align: center;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stat-item .stat-label {
    display: block;
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.stat-item .stat-value {
    font-size: 22px;
    font-weight: 900;
    color: var(--primary-color);
}

.sim-result-analysis {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.sim-result-analysis h4 {
    font-size: 11px;
    font-weight: 900;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.sim-result-analysis p {
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.7;
}

/* Transcript Section */
.sim-transcript-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 24px;
    overflow: hidden;
}

.sim-transcript-section h3 {
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary-color);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.3);
}

.sim-transcript {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-darker);
    border-radius: 8px;
    padding: 16px;
    border: 2px solid var(--border-color);
}

.sim-transcript::-webkit-scrollbar {
    width: 8px;
}

.sim-transcript::-webkit-scrollbar-track {
    background: var(--bg-dark);
    border-radius: 4px;
}

.sim-transcript::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.sim-transcript-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 350px;
    color: var(--text-secondary);
    text-align: center;
}

.sim-transcript-placeholder .placeholder-icon {
    font-size: 56px;
    margin-bottom: 20px;
    opacity: 0.4;
}

.sim-transcript-placeholder .placeholder-text {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.sim-transcript-placeholder .placeholder-subtext {
    font-size: 12px;
    opacity: 0.7;
    line-height: 1.5;
}

/* Transcript Messages */
.sim-message {
    margin-bottom: 16px;
    animation: messageAppear 0.3s ease-out;
}

.sim-message-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
}

.sim-message-speaker {
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 3px 10px;
    border-radius: 4px;
}

.sim-message-speaker.qa {
    color: var(--info-color);
    background: rgba(59, 130, 246, 0.15);
}

.sim-message-speaker.echo {
    color: var(--secondary-color);
    background: rgba(139, 92, 246, 0.15);
}

.sim-message-speaker.system {
    color: var(--warning-color);
    background: rgba(245, 158, 11, 0.15);
}

.sim-message-time {
    font-size: 10px;
    color: var(--text-secondary);
}

.sim-message-content {
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 13px;
    line-height: 1.6;
}

.sim-message.qa .sim-message-content {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(59, 130, 246, 0.05));
    border-left: 4px solid var(--info-color);
}

.sim-message.echo .sim-message-content {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(139, 92, 246, 0.05));
    border-left: 4px solid var(--secondary-color);
}

.sim-message.system .sim-message-content {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(245, 158, 11, 0.05));
    border-left: 4px solid var(--warning-color);
    font-style: italic;
}

/* Loading State */
.sim-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.sim-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.sim-loading-text {
    font-size: 12px;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 1200px) {
    .simulation-layout {
        grid-template-columns: 450px 1fr;
    }
}

@media (max-width: 1000px) {
    .simulation-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .simulation-config-panel {
        max-height: 500px;
    }

    .simulation-results-panel {
        min-height: 400px;
    }
}

@media (max-width: 600px) {
    .simulation-layout {
        gap: 15px;
        padding: 0;
    }

    .config-section {
        padding: 16px;
    }

    .sim-result-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .sim-result-stats {
        width: 100%;
        justify-content: space-between;
    }
}