/*
  Design intent: a fraud-ops console an analyst stares at all day, not a
  marketing dashboard. One restrained interactive accent (--signal). Color
  otherwise encodes real state only — entity type in the graph, risk tier
  everywhere else — never decoration. See PROJECT_WORKFLOW.md §1 for the
  entity-graph shape/color vocabulary this stylesheet shares with the
  Vis.js rendering in graph_vis.js / routes_graph.py.
*/
:root {
    --bg-main: #0A0E14;
    --bg-panel: #111720;
    --bg-inset: #0C1119;
    --border-hairline: #212A38;
    --border-hairline-soft: #1A222E;

    --ink-primary: #E4E9F2;
    --ink-muted: #7C8798;
    --ink-faint: #4B5568;

    --signal: #4FA3D1;
    --signal-dim: #2E5A73;

    /* Entity-type palette (graph nodes + legend) */
    --entity-user: #5B8DEF;
    --entity-device: #9B7EDE;
    --entity-ip: #E0A63C;
    --entity-merchant: #3FBF8F;

    /* Risk-tier palette — used ONLY for actual risk state (badges, gauge,
       fraud-flagged nodes), never as general UI decoration. */
    --tier-low: #3FBF8F;
    --tier-medium: #D1A23F;
    --tier-high: #D97A3F;
    --tier-critical: #C24A4A;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-main);
    color: var(--ink-primary);
    font-family: var(--font-main);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border-hairline);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-hairline);
    margin-bottom: 1.25rem;
}

.brand-mark {
    color: var(--signal);
    flex-shrink: 0;
}

.brand-text h2 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.brand-text span {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.65rem 0.75rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--ink-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
    text-align: left;
}

.nav-icon {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    opacity: 0.85;
}

.nav-btn:hover {
    background: var(--bg-inset);
    color: var(--ink-primary);
}

.nav-btn.active {
    background: var(--bg-inset);
    border-color: var(--border-hairline);
    color: var(--signal);
}

.nav-btn.active .nav-icon {
    opacity: 1;
}

.system-health {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 0.75rem;
    background: var(--bg-inset);
    border-radius: 6px;
    border: 1px solid var(--border-hairline);
}

.health-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--tier-low);
    flex-shrink: 0;
}

.health-title {
    font-size: 0.78rem;
    font-weight: 600;
}

.health-sub {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--ink-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1.75rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 100%;
    overflow-x: hidden;
}

.top-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.9rem;
    padding-bottom: 1.1rem;
    border-bottom: 1px solid var(--border-hairline);
}

.data-pipeline-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.pipeline-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.pipeline-status {
    font-size: 0.78rem;
    color: var(--ink-muted);
    min-height: 1em;
}

.pipeline-status.status-loading { color: var(--tier-medium); }
.pipeline-status.status-ok { color: var(--tier-low); }
.pipeline-status.status-error { color: var(--tier-critical); }

.header-title h1 {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.header-title p {
    font-size: 0.82rem;
    color: var(--ink-muted);
    margin-top: 0.15rem;
}

.stats-row {
    display: flex;
    gap: 0.75rem;
}

.stat-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-hairline);
    padding: 0.65rem 1.1rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    min-width: 108px;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--ink-primary);
}

.stat-flagged .stat-value {
    color: var(--tier-high);
}

/* Cards & Layout */
.card {
    background: var(--bg-panel);
    border: 1px solid var(--border-hairline);
    border-radius: 10px;
    padding: 1.4rem;
}

.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.1rem;
}

.card-header h3 {
    font-size: 0.98rem;
    font-weight: 600;
}

.card-header p {
    font-size: 0.78rem;
    color: var(--ink-muted);
    width: 100%;
    margin-top: -0.6rem;
}

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

.btn-preset {
    background: var(--bg-inset);
    border: 1px solid var(--border-hairline);
    color: var(--ink-primary);
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.4rem 0.7rem;
    border-radius: 5px;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}

.btn-preset:hover {
    border-color: var(--signal-dim);
    color: var(--signal);
}

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

.btn-preset.btn-accent { color: var(--signal); border-color: var(--signal-dim); }

/* Preset buttons that preview a fraud scenario get a thin tier-colored
   underline only — a hint of what they'll produce, not a loud badge. */
.btn-preset.tier-tag-medium { box-shadow: inset 0 -2px 0 var(--tier-medium); }
.btn-preset.tier-tag-high { box-shadow: inset 0 -2px 0 var(--tier-high); }
.btn-preset.tier-tag-critical { box-shadow: inset 0 -2px 0 var(--tier-critical); }

/* Form Elements */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.9rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group.checkbox-group {
    grid-column: span 2;
    flex-direction: row;
    gap: 1.5rem;
}

label {
    font-size: 0.76rem;
    color: var(--ink-muted);
    font-weight: 500;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--ink-primary);
}

input[type="text"], input[type="number"] {
    background: var(--bg-inset);
    border: 1px solid var(--border-hairline);
    border-radius: 6px;
    padding: 0.55rem 0.7rem;
    color: var(--ink-primary);
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

input:focus {
    outline: none;
    border-color: var(--signal);
}

.btn-primary {
    grid-column: span 2;
    background: var(--signal);
    border: none;
    border-radius: 6px;
    padding: 0.8rem;
    color: #06141C;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.15s ease;
}

.btn-primary:hover {
    background: #62B2DC;
}

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

/* Score Meter — ring color is set per risk tier via [data-tier] rather than
   a single hardcoded color, so a LOW-risk transaction renders visibly calm
   and only a genuinely HIGH/CRITICAL one renders alarmed. */
.score-display-container {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    margin-bottom: 1.4rem;
}

.gauge-circle {
    --tier-color: var(--tier-low);
    width: 112px;
    height: 112px;
    border-radius: 50%;
    background: conic-gradient(var(--tier-color) var(--score-pct), var(--border-hairline-soft) 0);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

.gauge-circle[data-tier="low"] { --tier-color: var(--tier-low); }
.gauge-circle[data-tier="medium"] { --tier-color: var(--tier-medium); }
.gauge-circle[data-tier="high"] { --tier-color: var(--tier-high); }
.gauge-circle[data-tier="critical"] { --tier-color: var(--tier-critical); }

.gauge-inner {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--bg-panel);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.score-num {
    font-size: 1.7rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.score-max {
    font-size: 0.68rem;
    color: var(--ink-muted);
}

.risk-badge {
    padding: 0.3rem 0.65rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    display: inline-block;
    margin-bottom: 0.4rem;
    background: var(--bg-inset);
    border: 1px solid var(--border-hairline);
    color: var(--ink-muted);
}

.risk-badge.tier-low { color: var(--tier-low); border-color: var(--tier-low); }
.risk-badge.tier-medium { color: var(--tier-medium); border-color: var(--tier-medium); }
.risk-badge.tier-high { color: var(--tier-high); border-color: var(--tier-high); }
.risk-badge.tier-critical { color: var(--tier-critical); border-color: var(--tier-critical); }

.decision-text {
    font-size: 0.82rem;
    color: var(--ink-muted);
}

.breakdown-grid {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-bottom: 1.4rem;
}

.breakdown-item {
    display: grid;
    grid-template-columns: 140px 46px 1fr;
    align-items: center;
    font-size: 0.78rem;
    gap: 0.5rem;
}

.breakdown-name { color: var(--ink-muted); }
.breakdown-val { font-family: var(--font-mono); text-align: right; }

.progress-bar {
    height: 6px;
    background: var(--bg-inset);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    transition: width 0.4s ease;
}

.progress-fill.fill-tabular { background: var(--entity-user); }
.progress-fill.fill-gnn { background: var(--entity-device); }
.progress-fill.fill-topology { background: var(--entity-ip); }

.evidence-box {
    background: var(--bg-inset);
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    padding: 0.9rem 1rem;
}

.evidence-box h4 {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ink-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.evidence-box ul {
    list-style: none;
    font-size: 0.82rem;
    color: var(--ink-muted);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.evidence-box strong {
    color: var(--ink-primary);
    font-family: var(--font-mono);
}

/* Graph Canvas */
.graph-legend {
    display: flex;
    gap: 1.1rem;
    flex-wrap: wrap;
    margin-bottom: 0.9rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid var(--border-hairline-soft);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.78rem;
    color: var(--ink-muted);
}

.legend-dot, .legend-square, .legend-diamond, .legend-triangle {
    display: inline-block;
    width: 10px;
    height: 10px;
    flex-shrink: 0;
}
.legend-dot { border-radius: 50%; }
.legend-square { border-radius: 2px; }
.legend-diamond { transform: rotate(45deg); border-radius: 1px; }
.legend-triangle {
    width: 0; height: 0;
    background: transparent !important;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 9px solid;
}

.legend-user { background: var(--entity-user); }
.legend-device { background: var(--entity-device); }
.legend-ip { background: var(--entity-ip); }
.legend-merchant { border-bottom-color: var(--entity-merchant); }
.legend-fraud { background: var(--tier-critical); }

.graph-canvas {
    height: 500px;
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    background: var(--bg-inset);
}

.graph-note {
    font-size: 0.76rem;
    color: var(--tier-medium);
    background: var(--bg-inset);
    border: 1px solid var(--border-hairline);
    border-left: 2px solid var(--tier-medium);
    padding: 0.5rem 0.8rem;
    border-radius: 4px;
    margin-bottom: 0.9rem;
}

.graph-loading, .graph-empty {
    padding: 2rem;
    color: var(--ink-muted);
    font-size: 0.85rem;
}

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

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

/* Report & Log Styling */
.agent-mode-controls {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.agent-mode-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.agent-mode-select {
    background: var(--bg-inset);
    color: var(--ink-primary);
    border: 1px solid var(--border-hairline);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.5rem;
    cursor: pointer;
}

.agent-mode-select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.agent-mode-select option:disabled {
    color: var(--ink-faint);
}

.agent-status-badge {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--signal);
    border: 1px solid var(--signal-dim);
    padding: 0.25rem 0.55rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.agent-status-badge.status-deterministic {
    color: var(--ink-muted);
    border-color: var(--border-hairline);
}

.agent-status-badge.status-error {
    color: var(--tier-critical);
    border-color: var(--tier-critical);
}

.markdown-report-box {
    background: var(--bg-inset);
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    padding: 1.4rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.65;
    white-space: pre-wrap;
    min-height: 300px;
    color: var(--ink-primary);
}

.placeholder-msg {
    color: var(--ink-muted);
}

.log-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.log-box h4 {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ink-muted);
    margin-bottom: 0.5rem;
}

.log-box pre {
    background: var(--bg-main);
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--ink-muted);
    height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.data-table th, .data-table td {
    padding: 0.65rem 0.9rem;
    text-align: left;
    border-bottom: 1px solid var(--border-hairline-soft);
    white-space: nowrap;
}

.data-table th {
    color: var(--ink-muted);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 500;
}

.data-table td { color: var(--ink-primary); }

code {
    font-family: var(--font-mono);
    font-size: 0.8em;
    color: var(--ink-primary);
}

/* Risk tier pills inside the transaction table (set via JS class names
   tier-low / tier-medium / tier-high / tier-critical / tier-unscored) */
.tier-pill {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--border-hairline);
    color: var(--ink-muted);
}
.tier-pill.tier-low { color: var(--tier-low); border-color: var(--tier-low); }
.tier-pill.tier-medium { color: var(--tier-medium); border-color: var(--tier-medium); }
.tier-pill.tier-high { color: var(--tier-high); border-color: var(--tier-high); }
.tier-pill.tier-critical { color: var(--tier-critical); border-color: var(--tier-critical); }

@media (max-width: 900px) {
    .grid-2col { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .form-group.checkbox-group { grid-column: span 1; flex-direction: column; gap: 0.5rem; }
    .btn-primary { grid-column: span 1; }
}

/* Server-computed velocity control */
.velocity-control { display:flex; flex-direction:column; gap:6px; }
.switch-label { display:flex; align-items:center; gap:9px; cursor:pointer; font-weight:500; }
.switch-label input { width:18px; height:18px; accent-color:var(--signal); }

/* Info bubble: a small "i" trigger next to a label that reveals an
   explanatory tooltip on hover/focus/tap, instead of a permanent block of
   small gray text competing with the actual form controls for space. */
.form-group label { display:flex; align-items:center; gap:6px; position:relative; }
.info-trigger {
    display:inline-flex; align-items:center; justify-content:center;
    width:16px; height:16px; border-radius:50%;
    border:1px solid var(--border-hairline); background:var(--bg-inset);
    color:var(--ink-muted); font-family:var(--font-mono); font-size:10px; font-weight:600;
    line-height:1; cursor:pointer; padding:0; flex-shrink:0;
    transition:border-color .15s, color .15s;
}
.info-trigger:hover, .info-trigger:focus-visible, .info-trigger.is-active {
    border-color:var(--signal); color:var(--signal); outline:none;
}
.info-bubble {
    position:absolute; z-index:20; top:calc(100% + 10px); left:0;
    width:260px; max-width:80vw; padding:10px 12px;
    background:var(--bg-panel); border:1px solid var(--border-hairline);
    border-radius:8px; box-shadow:0 8px 24px rgba(0,0,0,.35);
    color:var(--ink-muted); font-size:12px; line-height:1.45;
    opacity:0; pointer-events:none; transform:translateY(-4px);
    transition:opacity .12s ease, transform .12s ease;
}
.info-bubble strong { color:var(--ink-primary); font-weight:600; }
.info-bubble-arrow {
    position:absolute; top:-5px; left:12px; width:9px; height:9px;
    background:var(--bg-panel); border-left:1px solid var(--border-hairline);
    border-top:1px solid var(--border-hairline); transform:rotate(45deg);
}
.info-trigger:hover + .info-bubble,
.info-trigger:focus-visible + .info-bubble,
.info-bubble.is-open {
    opacity:1; pointer-events:auto; transform:translateY(0);
}