OpenNIT

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<?php $this->layout('layouts/main', ['page_title' => 'Seite nicht gefunden', 'breadcrumbs' => [], 'full_width' => true]); ?>

<div class="error-fullwidth">
    <div class="error-scene">
        <div class="error-card">
            <!-- Linke Spalte: Icon + Code -->
            <div class="error-left">
                <div class="error-icon-wrap error-icon-404">
                    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
                        <circle cx="11" cy="11" r="8"/>
                        <line x1="21" y1="21" x2="16.65" y2="16.65"/>
                        <line x1="8" y1="11" x2="14" y2="11"/>
                    </svg>
                </div>
                <div class="error-code">404</div>
            </div>

            <!-- Rechte Spalte: Text + Details + Aktionen -->
            <div class="error-right">
                <h1><?= $this->te('Seite nicht gefunden') ?></h1>

                <p class="error-desc">
                    <?= $this->te('Die angeforderte Seite existiert nicht oder wurde verschoben.') ?>
                </p>

                <div class="error-detail">
                    <div class="detail-row">
                        <span class="detail-label"><?= $this->te('Angeforderte Seite') ?></span>
                        <span class="detail-value"><?= $this->e($_SERVER['REQUEST_URI'] ?? '/') ?></span>
                    </div>
                    <div class="detail-row">
                        <span class="detail-label"><?= $this->te('Status') ?></span>
                        <span class="detail-badge badge-notfound"><?= $this->te('Nicht gefunden') ?></span>
                    </div>
                </div>

                <p class="error-hint">
                    <?= $this->te('Pr&uuml;fen Sie die URL oder nutzen Sie die Suche, um die gew&uuml;nschte Seite zu finden.') ?>
                </p>

                <div class="error-actions">
                    <a href="/" class="btn-err btn-err-primary">
                        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" width="18" height="18"><path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z"/><polyline points="9,22 9,12 15,12 15,22"/></svg>
                        <?= $this->te('Startseite') ?>
                    </a>
                    <a href="/topics" class="btn-err btn-err-secondary">
                        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" width="18" height="18"><path d="M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z"/></svg>
                        <?= $this->te('Themengebiete') ?>
                    </a>
                    <a href="javascript:history.back()" class="btn-err btn-err-ghost">
                        <?= $this->te('&larr; Zur&uuml;ck') ?>
                    </a>
                </div>
            </div>
        </div>
    </div>
</div>

<style>
.error-fullwidth {
    padding: 2rem 1rem;
    background: var(--slate-50);
    display: flex;
    justify-content: center;
}

.error-scene {
    width: 100%;
    max-width: 720px;
}

.error-card {
    background: var(--color-bg);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 20px 40px -8px rgba(0,0,0,0.08);
    padding: 2rem 2rem 2rem 2rem;
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

/* Left column: icon + error code */
.error-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    min-width: 100px;
    padding-top: 0.25rem;
}

/* Right column: everything else */
.error-right {
    flex: 1;
    min-width: 0;
}

.error-icon-wrap {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.error-icon-wrap svg {
    width: 30px;
    height: 30px;
}

.error-icon-404 {
    background: var(--amber-100);
    color: var(--amber-600);
}

.error-code {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    background: linear-gradient(135deg, var(--amber-600), var(--amber-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.error-right h1 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0 0 0.5rem;
}

.error-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.5;
    margin: 0 0 1rem;
}

.error-detail {
    background: var(--gray-50);
    border-radius: 0.625rem;
    padding: 0.625rem 0.875rem;
    margin-bottom: 1rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.3rem 0;
}

.detail-row + .detail-row {
    border-top: 1px solid var(--gray-100);
}

.detail-label {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 500;
    flex-shrink: 0;
    margin-right: 1rem;
}

.detail-value {
    font-size: 0.8rem;
    color: var(--gray-900);
    font-weight: 500;
    font-family: ui-monospace, 'SF Mono', monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    text-align: right;
}

.detail-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-notfound {
    background: var(--amber-100);
    color: var(--amber-600);
}

.error-hint {
    font-size: 0.82rem;
    color: var(--gray-400);
    margin: 0 0 1.25rem;
}

.error-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-err {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: all 0.15s;
}

.btn-err:hover { text-decoration: none; }

.btn-err-primary { background: var(--blue-600); color: var(--color-on-accent); }
.btn-err-primary:hover { background: var(--blue-700); }

.btn-err-secondary { background: var(--gray-100); color: var(--gray-700); }
.btn-err-secondary:hover { background: var(--gray-200); }

.btn-err-ghost { background: transparent; color: var(--gray-500); }
.btn-err-ghost:hover { color: var(--gray-900); background: var(--gray-50); }

@media (max-width: 540px) {
    .error-card {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
    }
    .error-left {
        flex-direction: row;
        min-width: 0;
        gap: 1rem;
        align-items: center;
    }
    .error-icon-wrap { margin-bottom: 0; }
    .error-actions { flex-direction: column; }
    .btn-err { justify-content: center; }
}
</style>