:root {
    --bg: #0f1115;
    --bg-panel: #1a1d24;
    --bg-card: #20242e;
    --border: #2e333d;
    --text: #e4e6eb;
    --text-muted: #8b919c;
    --accent: #3498db;
    --accent-hover: #2980b9;
    --danger: #e74c3c;
    --danger-hover: #c0392b;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

/* --- Login --- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}

.login-box {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    width: 320px;
}

.login-box h1 {
    margin-top: 0;
    font-size: 1.4rem;
    text-align: center;
}

.login-box form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.login-box label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* --- Topbar --- */
.topbar {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1.25rem;
    padding: 0.6rem 1.25rem;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    min-width: 0;
}

.topbar h1 {
    margin: 0;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.brand-link {
    color: var(--text);
}

.project-title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.project-title .target {
    color: var(--accent);
    font-weight: 400;
    font-size: 0.85rem;
}

.toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    flex-wrap: wrap;
    grid-column: 2;
}

.tool-btn {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    white-space: nowrap;
}

.tool-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.tool-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.tool-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.25rem;
    height: 1.25rem;
    margin-left: 0.25rem;
    padding: 0 0.35rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 0.7rem;
}

.user-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    justify-content: flex-end;
    grid-column: 3;
}

/* --- Forms --- */
input, select, textarea, button {
    font-family: inherit;
    font-size: 0.9rem;
    padding: 0.5rem 0.6rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
}

textarea {
    resize: vertical;
    min-height: 60px;
}

button {
    background: var(--accent);
    border: none;
    color: #fff;
    cursor: pointer;
    font-weight: 600;
}

button:hover {
    background: var(--accent-hover);
}

button.danger {
    background: var(--danger);
}

button.danger:hover {
    background: var(--danger-hover);
}

.button-link {
    display: inline-block;
    padding: 0.5rem 0.8rem;
    background: var(--accent);
    color: #fff;
    border-radius: 4px;
    text-align: center;
}

.button-link:hover {
    background: var(--accent-hover);
}

.alert {
    padding: 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.alert-error {
    background: rgba(231, 76, 60, 0.15);
    border: 1px solid var(--danger);
    color: #f5b7b1;
}

/* --- Dashboard --- */
.container {
    padding: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.inline-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.inline-form input {
    flex: 1;
    min-width: 160px;
}

.muted {
    color: var(--text-muted);
}

.small {
    font-size: 0.8rem;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.project-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text);
    transition: border-color 0.15s;
}

.project-card:hover {
    border-color: var(--accent);
}

.project-card-link {
    color: var(--text);
    display: block;
}

.project-card h3 {
    margin: 0 0 0.4rem;
}

.project-card .target {
    color: var(--accent);
    font-size: 0.85rem;
    margin: 0.2rem 0;
}

.project-card .desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.project-card .meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.project-card-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--border);
}

.inline-form-tight {
    display: inline;
}

.project-card-edit {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.project-card-edit.hidden,
.project-card-view.hidden {
    display: none;
}

.project-card-edit label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

/* --- Project / Graph view --- */
.project-main {
    position: relative;
    height: calc(100vh - 53px);
    overflow: hidden;
}

#grid-canvas {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: #14161c;
}

#graph-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    z-index: 1;
}

.connect-btn {
    width: 100%;
    margin-top: 0.4rem;
    background: var(--bg-card);
    border: 1px solid var(--accent);
    color: var(--accent);
    font-weight: 600;
}

.connect-btn:hover {
    background: var(--accent);
    color: #fff;
}

.connect-btn.active {
    background: var(--accent);
    color: #fff;
}

#connect-mode-hint {
    margin: 0.4rem 0 0;
}

/* --- Eltern-Info im Detail-Panel --- */
.parent-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.5rem;
}

.parent-info.hidden {
    display: none;
}

.parent-info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: 0.2rem;
}

.parent-info-row span {
    font-size: 0.9rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.small-btn {
    flex-shrink: 0;
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.small-btn:hover {
    border-color: var(--accent);
    color: var(--text);
}

.small-btn.danger {
    border-color: var(--danger);
    color: var(--danger);
}

.small-btn.danger:hover {
    background: var(--danger);
    color: #fff;
}

#detail-parent-remove:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

#detail-category-wrap.hidden {
    display: none;
}

/* --- In-Graph Schnellverbindungs-Icon --- */
.node-connect-icon {
    position: absolute;
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    border: 2px solid var(--bg-panel);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 50;
    box-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

.node-connect-icon:hover {
    background: var(--accent-hover);
}

.node-connect-icon.active {
    background: var(--danger);
    animation: pulse-connect 1s infinite;
}

.node-connect-icon.hidden {
    display: none;
}

@keyframes pulse-connect {
    0%, 100% { box-shadow: 0 2px 6px rgba(231, 76, 60, 0.6); }
    50% { box-shadow: 0 2px 14px rgba(231, 76, 60, 0.95); }
}

/* --- In-Graph "Unterknoten anlegen"-Icon --- */
.node-add-icon {
    background: var(--accent2, #2ecc71);
    background: #2ecc71;
}

.node-add-icon:hover {
    background: #27ae60;
}

/* --- Inline-Eingabefeld für schnelles Anlegen eines Unterknotens --- */
.quick-add-form {
    position: absolute;
    z-index: 60;
}

.quick-add-form.hidden {
    display: none;
}

.quick-add-form input {
    width: 200px;
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
    border-radius: 4px;
    border: 1px solid var(--accent);
    background: var(--bg-panel);
    color: var(--text);
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.quick-add-form input:focus {
    outline: none;
    border-color: #2ecc71;
}

/* Globaler Schnellerfassungs-Modus: größer, zentriert, deutlich erkennbar */
.quick-add-form.global input {
    width: 320px;
    padding: 0.65rem 0.8rem;
    font-size: 0.95rem;
    border-color: #2ecc71;
    box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

.quick-add-form.global input:focus {
    border-color: #2ecc71;
}

#ai-result {
    margin-top: 0.6rem;
    font-size: 0.85rem;
    line-height: 1.4;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
}

#ai-result.loading {
    color: var(--text-muted);
    font-style: italic;
}

/* --- Kategorien --- */
.category-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.4rem;
}

.category-swatch {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    flex-shrink: 0;
}

.category-name-input {
    flex: 1;
    min-width: 0;
}

.category-delete {
    flex-shrink: 0;
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    width: 28px;
    height: 28px;
    padding: 0;
    font-size: 1.1rem;
    line-height: 1;
}

.category-delete:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

/* --- Freischwebende Popup-Fenster (generisch für alle Werkzeuge) --- */
.floating-window {
    position: absolute;
    top: 70px;
    left: 20px;
    width: 320px;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.45);
    z-index: 100;
    max-height: calc(100vh - 110px);
    display: flex;
    flex-direction: column;
}

.floating-window-wide {
    width: 480px;
}

.floating-window.hidden {
    display: none;
}

.window-titlebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border);
    cursor: move;
    user-select: none;
    background: var(--bg-card);
    border-radius: 8px 8px 0 0;
    flex-shrink: 0;
}

.window-title {
    font-size: 0.9rem;
    font-weight: 600;
}

.window-close {
    background: transparent;
    color: var(--text-muted);
    border: none;
    font-size: 1.2rem;
    line-height: 1;
    padding: 0 0.2rem;
}

.window-close:hover {
    color: var(--text);
    background: transparent;
}

.window-body {
    padding: 0.85rem;
    overflow-y: auto;
}

.window-body form {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.window-body label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.window-body textarea {
    min-height: 80px;
}

.window-body .danger {
    margin-top: 0.6rem;
    width: 100%;
}

/* --- Quellen & Evidenzen --- */
.evidence-intro {
    margin-top: 0;
}

#evidence-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    max-height: 280px;
    overflow-y: auto;
    margin-bottom: 0.9rem;
    padding-right: 0.15rem;
}

.evidence-empty {
    margin: 0;
    padding: 0.6rem;
    border: 1px dashed var(--border);
    border-radius: 6px;
}

.evidence-card {
    padding: 0.65rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-card);
}

.evidence-card-header,
.node-evidence-header,
.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
}

.evidence-card-header strong {
    display: block;
    font-size: 0.86rem;
}

.evidence-node-label,
.evidence-meta {
    color: var(--text-muted);
    font-size: 0.72rem;
}

.evidence-node-label {
    margin-top: 0.15rem;
}

.evidence-meta {
    margin-top: 0.45rem;
}

.evidence-badge {
    flex-shrink: 0;
    padding: 0.2rem 0.45rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 0.68rem;
}

.evidence-confirmed {
    border-color: #2ecc71;
    color: #7ee2a8;
}

.evidence-plausible {
    border-color: #f1c40f;
    color: #f7dc6f;
}

.evidence-contradicted {
    border-color: var(--danger);
    color: #f5b7b1;
}

.evidence-excerpt {
    margin: 0.5rem 0;
    font-size: 0.8rem;
    line-height: 1.4;
    white-space: pre-wrap;
}

.evidence-source-link {
    display: inline-block;
    margin-top: 0.4rem;
    font-size: 0.75rem;
}

.evidence-actions {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.55rem;
}

.form-section-title {
    margin: 0.3rem 0;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    font-weight: 700;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.55rem;
}

.form-grid > div {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-actions button {
    flex: 1;
}

#evidence-cancel-edit.hidden {
    display: none;
}

.node-evidence-section {
    margin-top: 0.8rem;
    padding-top: 0.7rem;
    border-top: 1px solid var(--border);
}

.node-evidence-header {
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    font-weight: 700;
}

.node-evidence-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    max-height: 220px;
    overflow-y: auto;
}

.evidence-card-compact {
    padding: 0.5rem;
}

@media (max-width: 720px) {
    .floating-window-wide {
        width: calc(100vw - 20px);
    }

    .form-grid {
        grid-template-columns: 1fr;
    }
}