/* Reset & CSS Design System Variables */
:root {
    --bg-dark: #070913;
    --panel-bg: rgba(13, 17, 33, 0.7);
    --panel-border: rgba(56, 189, 248, 0.15);
    --panel-border-glow: rgba(56, 189, 248, 0.4);
    
    --accent-blue: #0284c7;
    --accent-sky: #38bdf8;
    --accent-gold: #fbbf24;
    --accent-red: #ef4444;
    --accent-green: #10b981;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --code-font: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Background Animations */
.stars-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(white, rgba(255,255,255,.2) 2px, transparent 40px),
        radial-gradient(white, rgba(255,255,255,.15) 1px, transparent 30px),
        radial-gradient(white, rgba(255,255,255,.1) 2px, transparent 40px);
    background-size: 550px 550px, 350px 350px, 250px 250px;
    background-position: 0 0, 40px 60px, 130px 270px;
    opacity: 0.2;
    z-index: -2;
    animation: backgroundShift 120s linear infinite;
}

.nebula-bg {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 40%),
                radial-gradient(circle at 70% 60%, rgba(14, 165, 233, 0.06) 0%, transparent 40%),
                radial-gradient(circle at 50% 50%, rgba(236, 72, 153, 0.02) 0%, transparent 50%);
    z-index: -1;
    animation: nebulaRotate 180s linear infinite;
}

@keyframes backgroundShift {
    from { background-position: 0 0, 40px 60px, 130px 270px; }
    to { background-position: 550px 550px, 390px 410px, 380px 820px; }
}

@keyframes nebulaRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Header */
.app-header {
    background: rgba(7, 9, 19, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--panel-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo-icon {
    font-size: 1.8rem;
    color: var(--accent-sky);
    filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.5));
}

.logo-text h1 {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #fff 0%, var(--accent-sky) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text span {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-family: var(--code-font);
    letter-spacing: 1px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 0.7rem;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--accent-sky);
    font-weight: 600;
}

.glow-dot {
    font-size: 0.5rem;
    animation: statusBlink 1.5s infinite;
}

@keyframes statusBlink {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* App Container Layout */
.app-container {
    flex: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* Panels */
.dag-panel, .operations-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    height: fit-content;
}

.panel-header {
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    padding-bottom: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.panel-header h2 {
    font-size: 1.15rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

/* DAG Selector Buttons */
.dag-selector {
    display: flex;
    gap: 0.5rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 0.3rem;
}

.dag-tab-btn {
    flex: 1;
    background: transparent;
    border: none;
    border-radius: 6px;
    padding: 0.5rem;
    color: var(--text-muted);
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-weight: 600;
}

.dag-tab-btn:hover {
    color: var(--text-main);
}

.dag-tab-btn.active {
    background: linear-gradient(135deg, var(--accent-blue) 0%, rgba(2,132,199,0.4) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.dag-num {
    font-family: var(--code-font);
    font-size: 0.65rem;
    background: rgba(0,0,0,0.3);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

/* DAG Views */
.dag-view {
    display: none;
}

.dag-view.active {
    display: block;
}

/* DAG Visual Graph */
.dag-visual-graph {
    background: rgba(10, 15, 30, 0.85);
    border: 1px solid rgba(56, 189, 248, 0.1);
    border-radius: 8px;
    padding: 1.5rem 1rem;
    display: flex;
    align-items: center;
    overflow-x: auto;
    gap: 0.4rem;
    min-height: 120px;
}

.dag-node {
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 6px;
    padding: 0.6rem 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    min-width: 95px;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dag-node:hover {
    border-color: var(--accent-sky);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
    transform: translateY(-2px);
}

.dag-node.active-detail {
    border-color: var(--accent-gold);
    box-shadow: 0 0 12px rgba(251, 191, 36, 0.35);
}

.dag-node i {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.dag-node .node-name {
    font-size: 0.65rem;
    font-family: var(--code-font);
    color: var(--text-muted);
    text-align: center;
}

/* Node statuses */
.node-status-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #475569;
}

.dag-node.node-running i { color: var(--accent-gold); }
.dag-node.node-running .node-name { color: var(--text-main); }
.dag-node.node-running .node-status-dot {
    background: var(--accent-gold);
    box-shadow: 0 0 8px var(--accent-gold);
    animation: statusPulse 1s infinite;
}

.dag-node.node-success i { color: var(--accent-green); }
.dag-node.node-success .node-name { color: var(--text-main); }
.dag-node.node-success .node-status-dot {
    background: var(--accent-green);
    box-shadow: 0 0 8px var(--accent-green);
}

.dag-node.node-failed i { color: var(--accent-red); }
.dag-node.node-failed .node-name { color: var(--text-main); }
.dag-node.node-failed .node-status-dot {
    background: var(--accent-red);
    box-shadow: 0 0 8px var(--accent-red);
}

.dag-edge {
    color: rgba(56, 189, 248, 0.15);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Node Details Card */
.node-details-card {
    background: rgba(13, 17, 33, 0.8);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 1.2rem;
    min-height: 290px;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.details-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    padding-bottom: 0.5rem;
}

.details-header h3 {
    font-size: 1rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.task-badge {
    font-family: var(--code-font);
    font-size: 0.7rem;
    font-weight: bold;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(148, 163, 184, 0.1);
    border: 1px solid rgba(148, 163, 184, 0.3);
    color: var(--text-muted);
}

.task-badge.badge-running {
    background: rgba(251, 191, 36, 0.1);
    border-color: rgba(251, 191, 36, 0.3);
    color: var(--accent-gold);
    animation: statusPulse 1.5s infinite;
}

.task-badge.badge-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
}

.task-badge.badge-failed {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

.node-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.node-plot-area {
    background: rgba(7, 9, 19, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.08);
    border-radius: 6px;
    width: 100%;
    min-height: 190px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.visual-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Small Canvas Style */
.mlops-canvas-small {
    background: #000;
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 4px;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.1);
}

/* Operations Panel Tab Headers */
.tabs-header {
    display: flex;
    border-bottom: 1px solid rgba(56, 189, 248, 0.15);
    gap: 0.5rem;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 0.6rem 0.8rem;
    color: var(--text-muted);
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--accent-sky);
    border-bottom-color: var(--accent-sky);
}

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

.tab-content.active {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

/* Tab 1: Operations controls */
.ops-controls-box {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.ops-controls-box h3 {
    font-size: 1.05rem;
    color: var(--text-main);
}

.dag-trigger-row {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.dag-info-summary {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.active-dag-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.active-dag-id {
    font-family: var(--code-font);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-sky);
}

.trigger-btn {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-sky) 100%);
    border: none;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.trigger-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.5);
}

/* Simulator cards */
.ops-simulator-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid rgba(56, 189, 248, 0.08);
    border-radius: 8px;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    transition: all 0.3s ease;
}

.ops-simulator-card.disabled {
    opacity: 0.35;
    pointer-events: none;
}

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

.card-title-header h4 {
    font-size: 0.95rem;
    color: var(--text-main);
}

.badge-gold {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    color: var(--accent-gold);
}

.badge-sky {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--accent-sky);
}

.card-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
}

.slider-header label {
    color: var(--text-muted);
}

.val-display {
    font-weight: bold;
    color: var(--accent-sky);
}

.app-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: rgba(255,255,255,0.1);
    outline: none;
}

.app-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-sky);
    cursor: pointer;
    box-shadow: 0 0 8px var(--accent-sky);
}

/* RAG stat items */
.rag-status-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
}

.rag-stat-item {
    background: rgba(7, 9, 19, 0.6);
    border: 1px solid rgba(56, 189, 248, 0.05);
    border-radius: 6px;
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.stat-lbl {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.stat-val {
    font-family: var(--code-font);
    font-size: 0.8rem;
    font-weight: 600;
}

.stat-val.val-blue {
    color: var(--accent-sky);
}

/* TAB 2: MODEL REGISTRY */
.model-registry-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.registry-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.stat-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    text-align: center;
}

.stat-title {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.stat-value {
    font-size: 1rem;
    font-weight: bold;
}

.text-green { color: var(--accent-green); }
.text-sky { color: var(--accent-sky); }
.text-gold { color: var(--accent-gold); }

.model-registry-wrapper h3 {
    font-size: 1rem;
    color: var(--text-main);
}

.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
}

.registry-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    text-align: left;
    background: rgba(13, 17, 33, 0.4);
}

.registry-table th {
    background: rgba(15, 23, 42, 0.8);
    color: var(--accent-sky);
    font-weight: 600;
    padding: 0.75rem 0.8rem;
    border-bottom: 1px solid var(--panel-border);
}

.registry-table td {
    padding: 0.75rem 0.8rem;
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    color: var(--text-main);
    font-family: var(--code-font);
    font-size: 0.72rem;
}

.registry-table tr:hover {
    background: rgba(56, 189, 248, 0.03);
}

.badge-gate {
    padding: 0.15rem 0.35rem;
    font-size: 0.65rem;
    border-radius: 3px;
    font-weight: bold;
}

.badge-gate.approved {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
}

.badge-gate.rejected {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

.badge-deploy {
    padding: 0.15rem 0.35rem;
    font-size: 0.65rem;
    border-radius: 3px;
    font-weight: bold;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--accent-sky);
}

/* TAB 3: RAG CHATBOT */
.rag-chat-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    height: 620px;
}

.chat-header-desc {
    font-size: 0.8rem;
}

.chat-header-desc h4 {
    color: var(--text-main);
    margin-bottom: 0.2rem;
}

.chat-header-desc p {
    color: var(--text-muted);
}

.ollama-config-panel {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-top: 0.5rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--panel-border);
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    font-size: 0.72rem;
}

.ollama-config-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.ollama-config-item label {
    color: var(--text-muted);
    font-weight: 600;
}

.ollama-config-item input {
    background: rgba(7, 9, 19, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 4px;
    padding: 0.2rem 0.4rem;
    color: white;
    font-family: var(--code-font);
    font-size: 0.7rem;
    width: 120px;
    outline: none;
}

.ollama-config-item input:focus {
    border-color: var(--accent-sky);
}

.ollama-status {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-muted);
}

.ollama-status .status-dot {
    font-size: 0.5rem;
    color: var(--text-muted);
}

.ollama-status.connected {
    color: var(--accent-green);
}
.ollama-status.connected .status-dot {
    color: var(--accent-green);
    animation: statusBlink 1.5s infinite;
}

.ollama-status.disconnected {
    color: var(--accent-red);
}
.ollama-status.disconnected .status-dot {
    color: var(--accent-red);
}

.chat-display-area {
    flex: 1;
    background: rgba(7, 9, 19, 0.95);
    border: 1px solid rgba(56, 189, 248, 0.1);
    border-radius: 8px;
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.chat-msg {
    display: flex;
    gap: 0.6rem;
    font-size: 0.82rem;
    line-height: 1.4;
    padding: 0.5rem;
    border-radius: 6px;
    width: 90%;
}

.chat-msg.system {
    align-self: flex-start;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(56, 189, 248, 0.08);
}

.chat-msg.system i {
    color: var(--accent-sky);
}

.chat-msg.user {
    align-self: flex-end;
    background: rgba(2, 132, 199, 0.15);
    border: 1px solid rgba(2, 132, 199, 0.3);
    flex-direction: row-reverse;
}

.chat-msg.user i {
    color: var(--accent-sky);
}

.msg-content {
    flex: 1;
    color: var(--text-main);
}

/* Retrieved semantic context */
.retrieved-context-panel {
    background: rgba(13, 17, 33, 0.9);
    border: 1px dashed rgba(56, 189, 248, 0.25);
    border-radius: 6px;
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.context-lbl {
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--accent-gold);
    text-transform: uppercase;
}

.context-content {
    font-family: var(--code-font);
    font-size: 0.72rem;
    color: var(--text-muted);
    line-height: 1.3;
}

/* Chat Input Row */
.chat-input-row {
    display: flex;
    gap: 0.5rem;
}

.chat-input-row input {
    flex: 1;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--panel-border);
    border-radius: 6px;
    padding: 0.6rem 0.8rem;
    color: white;
    font-family: 'Outfit', sans-serif;
    outline: none;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.chat-input-row input:focus {
    border-color: var(--accent-sky);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.25);
}

.chat-send-btn {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-sky) 100%);
    border: none;
    color: white;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 0 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.chat-send-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.4);
}

/* MLOps Dashboard Aids */
.mlops-metrics-box {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 6px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.8rem;
    width: 100%;
}

.mlops-metric-item {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px dashed rgba(148, 163, 184, 0.15);
    padding-bottom: 0.3rem;
}

.mlops-metric-item:last-child {
    border-bottom: none;
}

.mlops-metric-lbl {
    color: var(--text-muted);
}

.mlops-metric-val {
    font-weight: bold;
    color: var(--accent-sky);
}

.mlops-metric-val.val-green { color: var(--accent-green); }
.mlops-metric-val.val-gold { color: var(--accent-gold); }
.mlops-metric-val.val-red { color: var(--accent-red); }

/* Footer */
.app-footer {
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: auto;
    border-top: 1px solid rgba(56, 189, 248, 0.05);
}

/* Responsive design */
@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 1fr;
    }
}