{% macro donut(label, pct, subtitle, value_text=None) %}
{% set p = pct if pct is not none else 0 %}
{% if p < 0 %}{% set p=0 %}{% endif %} {% if p> 100 %}{% set p = 100 %}{% endif %}

    {# severity color #}
    {% if p < 60 %} {% set col="#16a34a" %} {# green #} {% elif p < 85 %} {% set col="#f59e0b" %} {# amber #} {% else %}
        {% set col="#ef4444" %} {# red #} {% endif %} {% set r=24 %} {% set stroke=10 %} {% set c=2 * 3.1415926 * r %}
        {% set dash=(p / 100.0) * c %} {% set txt=value_text if value_text else (p|round(0) ~ "%" ) %} <div style="
      border:1px solid rgba(0,0,0,.08);
      border-radius: 16px;
      padding: 14px 14px;
      background: linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.75));
      box-shadow: 0 8px 24px rgba(0,0,0,.06);
      display:flex;
      align-items:center;
      gap: 14px;
      min-height: 92px;
    ">
        <div style="position:relative; width:72px; height:72px; flex: 0 0 auto;">
            <svg width="72" height="72" viewBox="0 0 72 72">
                <defs>
                    <filter id="softShadow" x="-50%" y="-50%" width="200%" height="200%">
                        <feDropShadow dx="0" dy="2" stdDeviation="2" flood-opacity="0.18" />
                    </filter>
                </defs>

                {# track #}
                <circle cx="36" cy="36" r="{{ r }}" fill="none" stroke="rgba(0,0,0,.08)" stroke-width="{{ stroke }}"
                    stroke-linecap="round" />

                {# progress ring #}
                <circle cx="36" cy="36" r="{{ r }}" fill="none" stroke="{{ col }}" stroke-width="{{ stroke }}"
                    stroke-linecap="round" stroke-dasharray="{{ dash }} {{ c - dash }}" transform="rotate(-90 36 36)"
                    filter="url(#softShadow)" />

                {# center text #}
                <text x="36" y="40" text-anchor="middle" font-size="14" font-weight="700"
                    font-family="system-ui, -apple-system, Segoe UI, Roboto" fill="rgba(0,0,0,.82)">{{ txt }}</text>
            </svg>

            {# small dot marker at end (nice touch) #}
            {% set angle = (p/100.0) * 2 * 3.1415926 - (3.1415926/2) %}
            {% set cx = 36 + r * (angle|float|cos) %}
            {% set cy = 36 + r * (angle|float|sin) %}
        </div>

        <div style="min-width: 0;">
            <div style="
          display:flex;
          align-items:center;
          justify-content:space-between;
          gap: 10px;">
                <div style="font-weight:800; letter-spacing:-0.2px;">{{ label }}</div>
                <div style="
            font-size:12px;
            padding: 2px 8px;
            border-radius: 999px;
            background: rgba(0,0,0,.04);
            color: rgba(0,0,0,.65);
            flex: 0 0 auto;">
                    live
                </div>
            </div>

            <div class="muted"
                style="margin-top:4px; font-size:12.5px; color: rgba(0,0,0,.62); white-space:nowrap; overflow:hidden; text-overflow:ellipsis;">
                {{ subtitle }}
            </div>

            {# bar meter for quick scan #}
            <div
                style="margin-top:10px; height:8px; border-radius:999px; background: rgba(0,0,0,.07); overflow:hidden;">
                <div style="height:100%; width: {{ p }}%; background: {{ col }}; border-radius:999px;"></div>
            </div>
        </div>
        </div>
        {% endmacro %}


        <h2 style="margin-top: 0;">Live usage</h2>
        <div style="display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 12px 0 18px 0;">
            {{ donut("CPU", data.gauges.cpu_total_pct, "Sum of container CPU% (clamped)") }}
            {{ donut("RAM", data.gauges.ram_pct, "All containers vs host RAM", (data.gauges.ram_used_h ~ " / " ~
            data.gauges.ram_total_h)) }}
            {{ donut("Docker disk", data.gauges.docker_images_pct, "Images used vs total store") }}
        </div>

        <h2>System</h2>
        <div style="display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 12px 0 18px 0;">
            <div style="border:1px solid #ddd; border-radius: 10px; padding: 12px;">
                <div class="muted">Host</div>
                <div><strong>{{ data.system.name or "—" }}</strong></div>
                <div class="muted">{{ data.system.operating_system }} · {{ data.system.kernel_version }}</div>
            </div>

            <div style="border:1px solid #ddd; border-radius: 10px; padding: 12px;">
                <div class="muted">Compute</div>
                <div><strong>{{ data.system.cpus or "—" }}</strong> CPUs</div>
                <div><strong>{{ data.system.mem_total_h or "—" }}</strong> RAM</div>
            </div>

            <div style="border:1px solid #ddd; border-radius: 10px; padding: 12px;">
                <div class="muted">Docker</div>
                <div>Engine: <strong>{{ data.system.server_version or "—" }}</strong></div>
                <div>Images: <strong>{{ data.system.images or "—" }}</strong></div>
                <div>Containers: <strong>{{ data.system.containers_running or "—" }}</strong> running / <strong>{{
                        data.system.containers_stopped or "—" }}</strong> stopped</div>
            </div>
        </div>


        <h3>Docker disk usage</h3>
        <table>
            <thead>
                <tr>
                    <th>Type</th>
                    <th>Total</th>
                    <th>Active</th>
                    <th>Size</th>
                    <th>Reclaimable</th>
                </tr>
            </thead>
            <tbody>
                {% for typ, r in data.system.system_df.items() %}
                <tr>
                    <td><strong>{{ typ }}</strong></td>
                    <td>{{ r.total }}</td>
                    <td>{{ r.active }}</td>
                    <td>{{ r.size }}</td>
                    <td>{{ r.reclaimable }}</td>
                </tr>
                {% endfor %}
            </tbody>
        </table>

        <div class="muted">Generated at: {{ data.generated_at }}</div>

        {% if data.warnings %}
        <div style="margin: 10px 0; padding: 10px; border: 1px solid #f2c037; background: #fff7db; border-radius: 8px;">
            <strong>Warnings</strong>
            <ul>
                {% for w in data.warnings %}
                <li>{{ w }}</li>
                {% endfor %}
            </ul>
        </div>
        {% endif %}

        <h2>Apps</h2>
        <table>
            <thead>
                <tr>
                    <th>App</th>
                    <th>URL</th>
                    <th>Status</th>
                    <th>CPU</th>
                    <th>RAM</th>
                    <th>Restarts</th>
                    <th>Image</th>
                </tr>
            </thead>
            <tbody>
                {% for r in data.apps %}
                <tr>
                    <td><strong>{{ r.app }}</strong></td>
                    <td><a href="{{ r.url }}">{{ r.url }}</a></td>
                    <td class="muted">{{ r.status }}</td>
                    <td>{{ r.cpu or "—" }}</td>
                    <td>
                        {% if r.mem_used %}
                        {{ r.mem_used }} / {{ r.mem_limit }} ({{ r.mem_pct }})
                        {% else %} — {% endif %}
                    </td>
                    <td>{{ r.restarts }}</td>
                    <td class="muted">{{ r.image }}</td>
                </tr>
                {% endfor %}
            </tbody>
        </table>

        {% if data.infra %}
        <h2 style="margin-top: 24px;">Infra</h2>
        <table>
            <thead>
                <tr>
                    <th>Container</th>
                    <th>Status</th>
                    <th>CPU</th>
                    <th>RAM</th>
                    <th>Restarts</th>
                    <th>Image</th>
                </tr>
            </thead>
            <tbody>
                {% for r in data.infra %}
                <tr>
                    <td><strong>{{ r.container }}</strong></td>
                    <td class="muted">{{ r.status }}</td>
                    <td>{{ r.cpu or "—" }}</td>
                    <td>
                        {% if r.mem_used %}
                        {{ r.mem_used }} / {{ r.mem_limit }} ({{ r.mem_pct }})
                        {% else %} — {% endif %}
                    </td>
                    <td>{{ r.restarts }}</td>
                    <td class="muted">{{ r.image }}</td>
                </tr>
                {% endfor %}
            </tbody>
        </table>
        {% endif %}