/* ====================================================================
   CyberSim -- Dark Hacker Theme
   Neon green (#00ff41) accents, terminal-style fonts, dark backgrounds
   ==================================================================== */

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-panel: #161616;
    --bg-input: #1a1a1a;
    --border-color: #2a2a2a;
    --border-glow: #00ff4130;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;
    --text-muted: #555555;
    --neon-green: #00ff41;
    --neon-green-dim: #00cc33;
    --neon-green-glow: #00ff4140;
    --red: #ff4444;
    --orange: #ff8c00;
    --yellow: #ffd700;
    --blue: #4488ff;
    --purple: #aa66ff;
    --severity-critical: #ff1744;
    --severity-high: #ff6d00;
    --severity-medium: #ffab00;
    --severity-low: #00c853;
    --severity-none: #607d8b;
    --font-mono: 'Fira Code', 'Consolas', 'Monaco', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius: 6px;
    --transition: 0.2s ease;
}

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

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--neon-green);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--neon-green-dim);
    text-decoration: underline;
}

.mono { font-family: var(--font-mono); }

/* ── Navbar ──────────────────────────────────────────────────────────── */

.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-logo {
    font-family: var(--font-mono);
    color: var(--neon-green);
    font-size: 1.3rem;
    font-weight: 600;
    text-shadow: 0 0 10px var(--neon-green-glow);
}

.nav-title {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.nav-version {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 1px 6px;
    border-radius: 3px;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
}

.nav-link {
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.nav-link:hover {
    color: var(--neon-green);
    background: var(--neon-green-glow);
    text-decoration: none;
}

.nav-link.active {
    color: var(--neon-green);
    background: var(--neon-green-glow);
    box-shadow: inset 0 -2px 0 var(--neon-green);
}

.nav-icon { font-size: 0.9rem; }

/* ── Main Content ────────────────────────────────────────────────────── */

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ── Section Headers ─────────────────────────────────────────────────── */

.section-header {
    margin-bottom: 2rem;
}

.glitch-text {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    color: var(--neon-green);
    text-shadow: 0 0 20px var(--neon-green-glow), 0 0 40px var(--neon-green-glow);
    letter-spacing: 2px;
}

.section-sub {
    color: var(--text-secondary);
    margin-top: 0.25rem;
    font-size: 0.95rem;
}

/* ── KPI Cards ───────────────────────────────────────────────────────── */

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.kpi-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.kpi-value {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.kpi-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

.kpi-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.kpi-critical .kpi-value { color: var(--severity-critical); }
.kpi-critical .critical-bar { background: var(--severity-critical); }
.kpi-high .kpi-value { color: var(--severity-high); }
.kpi-high .high-bar { background: var(--severity-high); }
.kpi-medium .kpi-value { color: var(--severity-medium); }
.kpi-medium .medium-bar { background: var(--severity-medium); }
.kpi-low .kpi-value { color: var(--severity-low); }
.kpi-low .low-bar { background: var(--severity-low); }

/* ── Stats Grid ──────────────────────────────────────────────────────── */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stat-icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    color: var(--neon-green);
    font-weight: 600;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* ── Panels ──────────────────────────────────────────────────────────── */

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.panel.full-width { width: 100%; }

.panel-title {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--neon-green);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

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

/* ── Tables ──────────────────────────────────────────────────────────── */

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    text-align: left;
    padding: 0.75rem;
    color: var(--neon-green);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: var(--neon-green-glow);
}

.cvss-cell {
    font-weight: 600;
}

/* ── Badges ──────────────────────────────────────────────────────────── */

.severity-badge, .status-badge, .risk-badge, .stage-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
}

.severity-critical { background: var(--severity-critical); color: #fff; }
.severity-high { background: var(--severity-high); color: #fff; }
.severity-medium { background: var(--severity-medium); color: #000; }
.severity-low { background: var(--severity-low); color: #000; }
.severity-none { background: var(--severity-none); color: #fff; }

.status-open { background: var(--red); color: #fff; }
.status-mitigated { background: var(--blue); color: #fff; }
.status-closed, .status-resolved { background: var(--severity-low); color: #000; }
.status-draft { background: var(--text-muted); color: #fff; }
.status-active { background: var(--neon-green); color: #000; }

.badge-critical { background: var(--severity-critical); color: #fff; }
.badge-high { background: var(--severity-high); color: #fff; }
.badge-medium { background: var(--severity-medium); color: #000; }
.badge-low { background: var(--severity-low); color: #000; }

.stage-badge {
    background: var(--bg-input);
    color: var(--neon-green);
    border: 1px solid var(--neon-green-dim);
}

/* ── Risk Bars ───────────────────────────────────────────────────────── */

.risk-item {
    margin-bottom: 0.75rem;
}

.risk-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.risk-name { font-size: 0.85rem; }

.risk-bar-container {
    position: relative;
    background: var(--bg-input);
    height: 20px;
    border-radius: 3px;
    overflow: hidden;
}

.risk-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--severity-low), var(--severity-medium), var(--severity-high), var(--severity-critical));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.risk-score-label {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

.risk-score-cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mini-bar {
    width: 60px;
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
}

.mini-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--severity-low), var(--severity-critical));
    border-radius: 4px;
}

/* ── Chart Container ─────────────────────────────────────────────────── */

.chart-container {
    min-height: 200px;
    display: flex;
    align-items: flex-end;
    gap: 1.5rem;
    padding: 1rem 0;
    justify-content: center;
}

.chart-bar-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.chart-bar {
    width: 50px;
    border-radius: 3px 3px 0 0;
    transition: height 0.5s ease;
    min-height: 4px;
}

.chart-bar-label {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
}

.chart-bar-value {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ── Forms ────────────────────────────────────────────────────────────── */

.filter-bar {
    margin-bottom: 1.5rem;
}

.filter-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.filter-group label, .form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-input, .filter-select, .form-input, .form-select, .form-textarea {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-family: var(--font-sans);
    transition: border-color var(--transition);
    width: 100%;
}

.filter-input:focus, .filter-select:focus,
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 0 2px var(--neon-green-glow);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1rem;
}

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

/* ── Buttons ─────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-sans);
    text-decoration: none;
}

.btn-primary {
    background: var(--neon-green);
    color: #000;
    border-color: var(--neon-green);
}

.btn-primary:hover {
    background: var(--neon-green-dim);
    box-shadow: 0 0 15px var(--neon-green-glow);
}

.btn-danger {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

.btn-danger:hover {
    box-shadow: 0 0 15px rgba(255,68,68,0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-color);
}

.btn-ghost:hover {
    color: var(--neon-green);
    border-color: var(--neon-green);
}

.btn-sm {
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
}

/* ── CVSS Calculator ─────────────────────────────────────────────────── */

.cvss-calculator { padding: 1rem 0; }

.cvss-metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    font-family: var(--font-mono);
}

.metric-buttons {
    display: flex;
    gap: 0.25rem;
}

.metric-btn {
    flex: 1;
    padding: 0.4rem 0.3rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.72rem;
    cursor: pointer;
    border-radius: 3px;
    transition: all var(--transition);
    font-family: var(--font-mono);
}

.metric-btn:hover {
    border-color: var(--neon-green);
    color: var(--text-primary);
}

.metric-btn.active {
    background: var(--neon-green);
    color: #000;
    border-color: var(--neon-green);
    font-weight: 600;
}

.cvss-result {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem;
    background: var(--bg-input);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.cvss-score-display {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

#cvss-score {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--neon-green);
}

.cvss-vector {
    font-size: 0.8rem;
    color: var(--text-secondary);
    word-break: break-all;
}

.collapsed { display: none; }

.toggle-panel {
    cursor: pointer;
    user-select: none;
}

.toggle-panel:hover { color: #fff; }

.toggle-icon {
    float: right;
    font-family: var(--font-mono);
}

/* ── Kill Chain ──────────────────────────────────────────────────────── */

.kill-chain-viz {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding: 1rem 0;
}

.kc-stage {
    flex: 1;
    min-width: 160px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem;
    position: relative;
    transition: all var(--transition);
}

.kc-stage:hover {
    border-color: var(--neon-green);
    box-shadow: 0 0 10px var(--neon-green-glow);
}

.kc-stage-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.kc-number {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--neon-green);
    color: #000;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.kc-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.kc-connector {
    height: 2px;
    background: var(--neon-green-dim);
    margin: 0.5rem 0;
    opacity: 0.4;
}

.kc-techniques {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.kc-technique {
    font-size: 0.7rem;
    padding: 0.25rem 0.4rem;
    background: var(--bg-primary);
    border-radius: 3px;
    display: flex;
    gap: 0.4rem;
    cursor: default;
}

.tech-id {
    color: var(--neon-green);
    font-family: var(--font-mono);
    font-weight: 600;
    white-space: nowrap;
}

.tech-name {
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Simulation ──────────────────────────────────────────────────────── */

.sim-controls { margin-bottom: 1rem; }

.stage-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] { accent-color: var(--neon-green); }

.sim-params {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.sim-results {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.sim-results.hidden { display: none; }

.sim-overall {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.sim-prob {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
}

.sim-timeline {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.sim-stage-card {
    flex: 1;
    min-width: 140px;
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem;
    text-align: center;
}

.sim-stage-name {
    font-size: 0.75rem;
    color: var(--neon-green);
    font-family: var(--font-mono);
    margin-bottom: 0.25rem;
}

.sim-stage-prob {
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* ── About Page ──────────────────────────────────────────────────────── */

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.4rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.feature-icon {
    color: var(--neon-green);
    font-size: 0.6rem;
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.tech-item {
    display: flex;
    flex-direction: column;
}

.tech-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-family: var(--font-mono);
}

.tech-value {
    font-size: 0.9rem;
    color: var(--neon-green);
}

.api-endpoints {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 1rem;
}

.endpoint {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.35rem 0;
}

.endpoint code {
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.method {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 3px;
    min-width: 45px;
    text-align: center;
}

.method.get { background: var(--blue); color: #fff; }
.method.post { background: var(--neon-green); color: #000; }
.method.put { background: var(--orange); color: #fff; }
.method.delete { background: var(--red); color: #fff; }

.link { color: var(--neon-green); text-decoration: underline; }

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
    font-style: italic;
}

/* ── Footer ──────────────────────────────────────────────────────────── */

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

.footer-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-brand {
    font-family: var(--font-mono);
    color: var(--neon-green);
}

.footer-sep { color: var(--border-color); }

.footer-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-left: auto;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--neon-green);
    display: inline-block;
    animation: pulse 2s infinite;
}

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

/* ── Responsive ──────────────────────────────────────────────────────── */

@media (max-width: 1024px) {
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(3, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr 1fr; }
    .cvss-metrics-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .navbar { flex-direction: column; height: auto; padding: 0.75rem; }
    .nav-links { flex-wrap: wrap; justify-content: center; }
    .main-content { padding: 1rem; }
    .kpi-grid { grid-template-columns: 1fr 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .filter-form { flex-direction: column; }
    .sim-params { flex-direction: column; }
    .kill-chain-viz { flex-direction: column; }
}