{% extends 'workflows/base_shell.html' %}
{% load i18n %}

{% block title %}{{ error_title }}{% endblock %}

{% block extra_head %}
  <style>
    .error-page-shell {
      width: min(1180px, 100%);
      margin: 0 auto;
      padding-top: 28px;
      padding-bottom: 36px;
      gap: 22px;
    }

    .error-hero {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(260px, 360px);
      gap: 28px;
      align-items: center;
      padding: 34px;
      overflow: hidden;
      border: 1px solid rgba(216, 226, 239, 0.94);
      border-radius: 28px;
      background:
        radial-gradient(circle at 14% 18%, rgba(0, 0, 120, 0.16), rgba(0, 0, 120, 0) 34%),
        radial-gradient(circle at 88% 22%, rgba(31, 79, 214, 0.18), rgba(31, 79, 214, 0) 32%),
        radial-gradient(circle at 72% 88%, rgba(163, 32, 32, 0.12), rgba(163, 32, 32, 0) 28%),
        linear-gradient(145deg, rgba(247, 250, 255, 0.98), rgba(255, 255, 255, 0.94));
      box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.92),
        0 28px 60px rgba(15, 23, 42, 0.09);
    }

    .error-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(15, 27, 45, 0.02) 1px, transparent 1px),
        linear-gradient(rgba(15, 27, 45, 0.02) 1px, transparent 1px);
      background-size: 26px 26px;
      mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 88%);
      pointer-events: none;
    }

    .error-hero-copy,
    .error-code-orb,
    .error-detail-grid {
      position: relative;
      z-index: 1;
    }

    .error-kicker,
    .error-panel-kicker {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 12px;
      border-radius: 999px;
      border: 1px solid rgba(0, 0, 120, 0.12);
      background: rgba(0, 0, 120, 0.06);
      color: var(--ds-brand-strong);
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .error-hero-copy h1 {
      margin: 16px 0 0;
      max-width: 10ch;
      color: var(--ds-ink-strong);
      font-size: clamp(42px, 7vw, 78px);
      line-height: 0.94;
      letter-spacing: -0.06em;
    }

    .error-message {
      max-width: 58ch;
      margin: 16px 0 0;
      color: #4b5e78;
      font-size: clamp(16px, 2vw, 19px);
      line-height: 1.65;
    }

    .error-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 24px;
    }

    .error-code-orb {
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .error-code-ring {
      position: relative;
      display: grid;
      place-items: center;
      width: min(32vw, 300px);
      aspect-ratio: 1;
      border-radius: 50%;
      border: 1px solid rgba(0, 0, 120, 0.12);
      background:
        radial-gradient(circle at 50% 35%, rgba(255, 255, 255, 0.96), rgba(239, 245, 255, 0.94) 54%, rgba(224, 234, 249, 0.88) 100%);
      box-shadow:
        inset 0 10px 32px rgba(255, 255, 255, 0.8),
        0 20px 45px rgba(15, 23, 42, 0.12);
    }

    .error-code-ring::before,
    .error-code-ring::after {
      content: "";
      position: absolute;
      inset: 14px;
      border-radius: 50%;
      border: 1px dashed rgba(23, 63, 141, 0.18);
    }

    .error-code-ring::after {
      inset: -16px;
      border-style: solid;
      border-width: 1px;
      border-color: rgba(31, 79, 214, 0.1);
    }

    .error-code-label {
      margin-top: 8px;
      color: #6d7f97;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .error-code-ring strong {
      color: #10203a;
      font-size: clamp(60px, 10vw, 120px);
      line-height: 0.9;
      letter-spacing: -0.08em;
    }

    .error-detail-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
      gap: 18px;
    }

    .error-panel {
      padding: 24px;
      border: 1px solid rgba(216, 226, 239, 0.94);
      border-radius: 22px;
      background:
        radial-gradient(circle at top right, rgba(31, 79, 214, 0.05), rgba(31, 79, 214, 0) 34%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.94));
      box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.95),
        0 16px 30px rgba(15, 23, 42, 0.06);
    }

    .error-panel-primary {
      background:
        radial-gradient(circle at top left, rgba(0, 0, 120, 0.06), rgba(0, 0, 120, 0) 30%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 249, 255, 0.96));
    }

    .error-panel-head {
      display: grid;
      gap: 10px;
      margin-bottom: 14px;
    }

    .error-panel h2 {
      margin: 0;
      color: #17345e;
      font-size: 24px;
      line-height: 1.08;
      letter-spacing: -0.03em;
    }

    .error-panel p {
      margin: 0;
      color: #53677f;
      font-size: 15px;
      line-height: 1.7;
    }

    .error-signal-row {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 20px;
    }

    .error-signal {
      display: grid;
      gap: 6px;
      padding: 14px 16px;
      border: 1px solid rgba(200, 213, 229, 0.92);
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.78);
    }

    .error-signal span {
      color: #687b93;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .error-signal strong {
      color: #162841;
      font-size: 15px;
      line-height: 1.35;
      word-break: break-word;
    }

    .error-checklist {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .error-checklist li {
      position: relative;
      padding-left: 26px;
      color: #53677f;
      font-size: 15px;
      line-height: 1.65;
    }

    .error-checklist li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: linear-gradient(180deg, #1f4fd6, #173f8d);
      box-shadow: 0 0 0 5px rgba(31, 79, 214, 0.1);
    }

    @media (max-width: 900px) {
      .error-hero,
      .error-detail-grid {
        grid-template-columns: 1fr;
      }

      .error-code-orb {
        justify-content: flex-start;
      }

      .error-code-ring {
        width: min(72vw, 260px);
      }
    }

    @media (max-width: 640px) {
      .error-page-shell {
        padding-top: 18px;
      }

      .error-hero,
      .error-panel {
        padding: 22px 18px;
      }

      .error-signal-row {
        grid-template-columns: 1fr;
      }

      .error-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .error-actions .btn {
        width: 100%;
        justify-content: center;
      }
    }
  </style>
{% endblock %}

{% block shell_body %}
  {% include 'workflows/includes/app_header.html' with header_show_home=1 header_inside_shell=1 %}
  <div class="page-stack error-page-shell">
    <section class="error-hero">
      <div class="error-hero-copy">
        <div class="error-kicker">{% trans "System Response" %}</div>
        <h1>{{ error_heading }}</h1>
        <p class="error-message">{{ error_message }}</p>
        <div class="error-actions">
          <a class="btn btn-primary" href="/">{% trans "Zur Startseite" %}</a>
          {% if request.user.is_authenticated %}
          <a class="btn btn-secondary" href="/requests/">{% trans "Zum Dashboard" %}</a>
          {% else %}
          <a class="btn btn-secondary" href="/accounts/login/">{% trans "Anmelden" %}</a>
          {% endif %}
        </div>
      </div>
      <div class="error-code-orb" aria-hidden="true">
        <div class="error-code-ring">
          <span class="error-code-label">{% trans "Status" %}</span>
          <strong>{{ error_code }}</strong>
        </div>
      </div>
    </section>

    <section class="error-detail-grid">
      <article class="error-panel error-panel-primary">
        <div class="error-panel-head">
          <div class="error-panel-kicker">{% trans "What Happened" %}</div>
          <h2>{{ error_title }}</h2>
        </div>
        <p>{{ error_message }}</p>
        <div class="error-signal-row">
          <div class="error-signal">
            <span>{% trans "HTTP" %}</span>
            <strong>{{ error_code }}</strong>
          </div>
          <div class="error-signal">
            <span>{% trans "Path" %}</span>
            <strong>{{ request.path|default:"/" }}</strong>
          </div>
        </div>
      </article>

      <article class="error-panel">
        <div class="error-panel-head">
          <div class="error-panel-kicker">{% trans "Next Step" %}</div>
          <h2>{% trans "How to continue" %}</h2>
        </div>
        <ul class="error-checklist">
          <li>{% trans "Gehen Sie zur Startseite zurück und öffnen Sie den gewünschten Bereich erneut." %}</li>
          <li>{% trans "Prüfen Sie die URL, falls Sie eine Adresse manuell eingegeben haben." %}</li>
          <li>{% trans "Wenn das Problem bestehen bleibt, prüfen Sie die Server-Logs oder wenden Sie sich an die Administration." %}</li>
        </ul>
      </article>
    </section>
  </div>
{% endblock %}