/* Mobile App-Layout: Desktop-Navigation bleibt ab 769 px unverändert. */
.mobile-bottom-nav { display: none; }
.mobile-mehr { display: none; }
@media screen and (max-width: 768px) {
    html, body { width: 100%; max-width: 100%; }
    .sidebar { display: none; }
    .app { display: block; width: 100%; min-height: calc(100dvh - 60px); }
    .main { min-width: 0; width: 100%; gap: 18px; padding: 20px 14px calc(88px + env(safe-area-inset-bottom)); }
    .mobile-topbar {
        display: flex; align-items: center; justify-content: space-between;
        position: sticky; top: 0; z-index: 40;
        min-height: 60px; padding: env(safe-area-inset-top) max(14px, env(safe-area-inset-right)) 0 max(14px, env(safe-area-inset-left));
        background: var(--sidebar-bg); border-bottom: 1px solid var(--border-soft);
    }
    .mobile-topbar-logo { display: flex; align-items: center; gap: 10px; font-size: 18px; }
    .mobile-topbar-logo img { width: 30px; height: 30px; }
    .mobile-menu-btn { width: 48px; height: 48px; font-size: 24px; }
    .mobile-bottom-nav {
        display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
        position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
        padding: 4px env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
        background: var(--sidebar-bg); border-top: 1px solid var(--border-soft);
    }
    .mobile-bottom-nav a, .mobile-bottom-nav button {
        min-height: 64px; min-width: 0; display: flex; flex-direction: column;
        align-items: center; justify-content: center; gap: 3px;
        font: 600 11px var(--font-sans); color: var(--text-muted); background: transparent;
        border: 0; border-radius: 10px; cursor: pointer;
    }
    .mobile-bottom-nav span { font: 26px var(--font-sans); line-height: 28px; }
    .mobile-bottom-nav .active { color: var(--accent); background: var(--accent-soft-bg); }
    .mobile-mehr[open] {
        display: block; position: fixed; inset: auto 12px calc(12px + env(safe-area-inset-bottom));
        margin: 0 auto; width: calc(100% - 24px); max-width: 480px;
        max-height: calc(100dvh - 48px); overflow-y: auto; padding: 16px;
        border: 1px solid var(--border-soft); border-radius: 18px;
        color: var(--text-dark); background: var(--card-bg);
    }
    .mobile-mehr::backdrop { background: var(--overlay-bg); }
    .mobile-mehr-kopf { display: flex; align-items: center; justify-content: space-between; }
    .mobile-mehr h2 { margin: 0; font-size: 20px; }
    .mobile-mehr .nav-item { min-height: 52px; justify-content: space-between; color: var(--text-dark); }
    .page-title { font-size: 24px; overflow-wrap: anywhere; }
    .page-header { flex-direction: column; align-items: stretch; }
    .page-header > .btn { justify-content: center; }
    .card { padding: 16px; min-width: 0; }
    .projekt-kacheln-grid, .projects-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
    .projekt-kachel, .project-card { width: 100%; }
    .projekt-kachel-name, .project-card-name { white-space: normal; overflow-wrap: anywhere; font-size: 18px; }
    .projekt-kachel-uhr { text-align: center; padding: 8px 0; }
    .projekt-kachel-zeit { font-size: clamp(34px, 9vw, 44px); line-height: 1.2; }
    .projekt-kachel-info { justify-content: center; font-size: 14px; flex-wrap: wrap; }
    .projekt-kachel-actions { flex-wrap: wrap; }
    .projekt-kachel-actions .btn { min-width: 100px; }
    .btn { min-height: 48px; justify-content: center; white-space: normal; }
    .btn-sm { font-size: 14px; }
    .overflow-menu-btn, .log-menu-btn, .projekt-kachel-nachtragen, .projekt-kachel-loeschen { width: 44px; height: 44px; }
    .overflow-menu-item { min-height: 44px; font-size: 14px; }
    .overflow-menu-dropdown { max-width: calc(100vw - 56px); }
    .overflow-menu-farbe, .farbwahl-swatch { width: 44px; height: 44px; }
    .project-card-footer { flex-wrap: wrap; gap: 14px; }
    .project-card-desc, .log-desc, .field-hint { font-size: 14px; overflow-wrap: anywhere; }
    .tag-badge, .status-badge { font-size: 12px; white-space: normal; }
    .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .stat-tile { padding: 12px; min-width: 0; }
    .stat-tile .value { font-size: 18px; overflow-wrap: anywhere; }
    .filters-row { flex-direction: column; align-items: stretch; }
    .filters-row select, .form-group input:not([type=checkbox]):not([type=radio]), .form-group select, .form-group textarea {
        width: 100%; min-width: 0; max-width: 100%; min-height: 48px; font-size: 16px;
    }
    .form-group { min-width: 0; }
    .filters-row input:not([type=hidden]) { width: 100% !important; min-width: 0; min-height: 48px; font-size: 16px; }
    .tabs-segmented { display: flex; width: 100%; flex-wrap: wrap; }
    .tabs-segmented a { flex: 1; text-align: center; padding: 12px 6px; min-height: 44px; white-space: normal; }
    .log-row { display: flex; flex-wrap: wrap; gap: 10px; padding: 16px 0; margin: 0; }
    .log-row .log-body { flex: 1 1 calc(100% - 24px); min-width: 0; }
    .log-time { flex-basis: 100%; width: auto; font-size: 14px; }
    .log-title { font-size: 16px; overflow-wrap: anywhere; }
    .log-desc { white-space: pre-wrap; }
    .log-duration { width: auto; margin-left: 0; font-size: 15px; }
    .log-menu { margin-left: auto; }
    .log-group-header, .card-title-row, .chart-header { flex-wrap: wrap; gap: 8px; }
    .settings-tabs { display: grid; grid-template-columns: 1fr; gap: 8px; margin: 0; background: transparent; overflow: visible; padding: 0; }
    .settings-tab { display: flex; justify-content: space-between; align-items: center; min-height: 52px; width: 100%; text-align: left; white-space: normal; font-size: 16px; border: 1px solid var(--border-soft); background: var(--card-bg); }
    .settings-tab::after { content: '›'; font-size: 22px; }
    .settings-panel { scroll-margin-top: calc(76px + env(safe-area-inset-top)); }
    .settings-grid.two-cols, .settings-grid.three-cols, .settings-grid.zip-city { grid-template-columns: 1fr; }
    .settings-document-layout { grid-template-columns: minmax(0, 1fr); }
    .modal-overlay { padding: 12px; }
    .modal-box { padding: 18px; max-width: 100%; max-height: calc(100dvh - 24px - env(safe-area-inset-top) - env(safe-area-inset-bottom)); overflow-y: auto; }
    .modal-actions { flex-wrap: wrap; }
    .modal-actions .btn { flex: 1 1 100%; }
    .timer-fehler-hinweis { bottom: calc(84px + env(safe-area-inset-bottom)); }
    #importMappingContainer > div { grid-template-columns: minmax(0, 1fr) !important; }
    #importProjektZuordnungContainer > div { flex-direction: column; align-items: stretch !important; }
    #importProjektZuordnungContainer select { max-width: 100%; min-height: 48px; font-size: 16px; }
    #importVorschauContainer { overflow: visible !important; }
    #importVorschauContainer table, #importVorschauContainer tbody { display: block; }
    #importVorschauContainer tr { display: block; border: 1px solid var(--border-soft); border-radius: 8px; margin-bottom: 12px; }
    #importVorschauContainer tr:first-child { display: none; }
    #importVorschauContainer td { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 10px; font-size: 14px; overflow-wrap: anywhere; white-space: pre-wrap; }
    #importVorschauContainer td::before { content: attr(data-label); font-weight: 600; color: var(--text-muted); }
    .export-toggle { scroll-margin-top: 76px; }
}
@media print { .mobile-bottom-nav, .mobile-mehr { display: none !important; } }


/* Auf schmalen Displays bleibt auch die Jahresstatistik ohne Quer-Scrollen lesbar. */
.mobile-aktivitaet { display: none; }
@media screen and (max-width: 768px) {
    .heatmap-scroll { display: none; }
    .mobile-aktivitaet { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); gap: 20px; }
    .mobile-aktivitaet-monat { min-width: 0; }
    .mobile-aktivitaet-monat h3 { margin: 0 0 10px; font-size: 16px; }
    .mobile-aktivitaet-tage { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
    .mobile-aktivitaet-tage .heatmap-cell { display: flex; align-items: center; justify-content: center; width: 100%; height: 32px; font-size: 14px; color: var(--text-dark); }
}


/* Zusammenhängende Smartphone-Komponenten, ohne Desktop-Regeln zu verändern. */
.settings-mobile-back { display: none; }
@media screen and (max-width: 768px) {
    body { font-size: 16px; line-height: 1.5; }
    .main { padding-left: max(14px, env(safe-area-inset-left)); padding-right: max(14px, env(safe-area-inset-right)); }
    .mobile-topbar { min-height: calc(56px + env(safe-area-inset-top)); }
    .mobile-bottom-nav a, .mobile-bottom-nav button { padding: 6px 0; line-height: 1.3; }
    .mobile-bottom-nav .active { border-radius: 0; box-shadow: inset 0 3px var(--accent); }
    .mobile-bottom-nav svg { flex-shrink: 0; }
    .mobile-bottom-nav span { height: 24px; line-height: 24px; }
    .card { border-radius: 14px; }
    .projekt-kachel { gap: 18px; padding: 18px; }
    .projekt-kachel-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); }
    .projekt-kachel-actions .btn { min-height: 52px; font-size: 16px; }
    .project-card-top { gap: 12px; align-items: flex-start; }
    .project-card-top > div:last-child { flex-wrap: wrap; justify-content: flex-end; min-width: 0; }
    .project-card-footer { display: grid; grid-template-columns: minmax(0, 1fr); }
    .project-card-footer > div:last-child { flex-wrap: wrap; }
    .project-card-footer .btn { flex: 1; }
    .mobile-form-row { flex-direction: column; gap: 0 !important; }
    .log-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; padding: 16px 12px; margin: 12px 0; border: 1px solid var(--border-soft); background: var(--bg); }
    .log-row .log-body { grid-column: 1 / -1; grid-row: 1; }
    .log-dot { display: none; }
    .log-time { grid-column: 1 / -1; order: 0; }
    .log-duration { text-align: left; overflow-wrap: anywhere; }
    .log-menu { grid-column: 1 / -1; justify-content: flex-end; width: 100%; border-top: 1px solid var(--border-soft); padding-top: 8px; }
    .log-group-header { align-items: flex-start; flex-direction: column; }
    .settings-shell:not(.settings-mobile-detail) .settings-panel { display: none; }
    .settings-mobile-detail .settings-tabs { display: none; }
    .settings-mobile-detail .settings-mobile-back { display: inline-flex; justify-content: flex-start; margin-bottom: 14px; min-height: 48px; }
    .settings-panel { scroll-margin-top: calc(76px + env(safe-area-inset-top)); }
    .settings-tab { padding: 14px 16px; border-radius: 12px; }
    .preview-header { flex-wrap: wrap; }
    .preview-paper dl { grid-template-columns: minmax(0, 1fr); }
    .preview-paper { overflow-wrap: anywhere; }
    #importMappingContainer > .btn, #importStartenSchaltflaeche { width: 100%; }
    #importVorschauContainer td { padding: 10px !important; }
    .filters-row > input, .filters-row > select, .filters-row > button { flex: none !important; }
    .filters-row label { flex-wrap: wrap; }
    .page-header > div { min-width: 0; }
    .modal-overlay { align-items: flex-end; padding-bottom: max(12px, env(safe-area-inset-bottom)); }
    .modal-box { width: 100%; border-radius: 18px; }
}