/* ============================================================
   links.tmcsd.de – Stylesheet
   ============================================================ */

/* ?? Custom Properties ??????????????????????????????????????? */
:root {
    --bg:           #0f172a;
    --bg-card:      #1e293b;
    --bg-modal:     #1e293b;
    --border:       #334155;
    --text:         #e2e8f0;
    --text-muted:   #94a3b8;
    --primary:      #6366f1;
    --primary-hover:#4f46e5;
    --danger:       #ef4444;
    --danger-hover: #dc2626;
    --success:      #10b981;
    --radius:       0.75rem;
    --shadow:       0 4px 24px rgba(0,0,0,.45);
    --transition:   0.2s ease;
}

/* ?? Reset & Base ????????????????????????????????????????????? */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* ?? Header ??????????????????????????????????????????????????? */
.site-header {
    background: #0d1526;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.9rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 700;
    font-size: 1.15rem;
    color: #fff;
    white-space: nowrap;
    flex-shrink: 0;
}

.logo svg { width: 28px; height: 28px; fill: var(--primary); }

.search-wrap {
    flex: 1;
    min-width: 160px;
    max-width: 480px;
    position: relative;
}

.search-wrap svg {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    fill: var(--text-muted);
    pointer-events: none;
}

#searchInput {
    width: 100%;
    padding: 0.55rem 0.75rem 0.55rem 2.4rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.95rem;
    transition: border-color var(--transition);
    outline: none;
}

#searchInput:focus { border-color: var(--primary); }
#searchInput::placeholder { color: var(--text-muted); }

/* ?? Layout ??????????????????????????????????????????????????? */
.app-layout {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem 1.5rem 6rem;
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 1.75rem;
}

@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
        padding: 1rem 1rem 6rem;
    }
}

/* ?? Sidebar / Kategorien ????????????????????????????????????? */
.sidebar {
    position: sticky;
    top: 70px;
    align-self: start;
}

.sidebar-title {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.6rem;
    padding: 0 0.25rem;
}

.category-list { list-style: none; }

.category-item {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 0.6rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background var(--transition);
    font-size: 0.925rem;
    user-select: none;
}

.category-item:hover { background: var(--bg-card); }
.category-item.active { background: var(--bg-card); font-weight: 600; }

.cat-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--cat-color, var(--primary));
}

.cat-count {
    margin-left: auto;
    font-size: 0.75rem;
    background: rgba(255,255,255,.08);
    padding: 0 0.4rem;
    border-radius: 999px;
    color: var(--text-muted);
}

/* ?? Mobile Kategorie-Chips ??????????????????????????????????????? */
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    padding: 0.4rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    transition: all var(--transition);
    width: 100%;
    justify-content: center;
}
.btn-sm:hover { background: var(--bg-card); color: var(--text); }

/* Mobile Kategorie-Chips ??????????????????????????????????????? */
.category-chips {
    display: none;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .sidebar { display: none; }
    .category-chips { display: flex; }
}

.chip {
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    font-size: 0.82rem;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
    background: transparent;
    color: var(--text-muted);
    user-select: none;
}
.chip.active,
.chip:hover {
    background: var(--cat-color, var(--primary));
    border-color: transparent;
    color: #fff;
}

/* ?? Toolbar ??????????????????????????????????????????????????? */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.1rem;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.result-count {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ?? Link-Karten Grid ????????????????????????????????????????? */
#linksGrid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: 1rem;
}

/* Skeleton */
.skeleton {
    background: var(--bg-card);
    border-radius: var(--radius);
    height: 140px;
    animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: .45; }
}

/* Leerer Zustand */
.empty-state {
    grid-column: 1/-1;
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
}
.empty-state svg { width: 56px; height: 56px; fill: var(--border); margin-bottom: 1rem; }
.empty-state p { font-size: 1rem; }

/* Link-Karte */
.link-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem 1.1rem 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    animation: fadeIn 0.25s ease both;
    position: relative;
}
.link-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.card-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--cat-color, var(--primary));
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.35;
}

.card-url {
    font-size: 0.8rem;
    color: var(--primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.card-url:hover { text-decoration: underline; }

.card-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card-actions {
    display: flex;
    gap: 0.4rem;
    justify-content: flex-end;
    margin-top: 0.3rem;
}

.card-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 0.4rem;
    padding: 0.3rem 0.55rem;
    cursor: pointer;
    font-size: 0.78rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: all var(--transition);
}
.card-btn:hover { background: rgba(255,255,255,.08); color: var(--text); }
.card-btn.delete:hover { background: var(--danger); border-color: var(--danger); color: #fff; }

/* ?? FAB ??????????????????????????????????????????????????????? */
.fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 0.85rem 1.4rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 20px rgba(99,102,241,.5);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    z-index: 90;
}
.fab:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(99,102,241,.65);
}

/* ?? Modal ????????????????????????????????????????????????????? */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.65);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}
.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-modal);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(.96);
    transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: scale(1); }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.35rem;
}
.modal-title { font-size: 1.15rem; font-weight: 700; }

.modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.4rem;
    line-height: 1;
    padding: 0.1rem 0.35rem;
    border-radius: 0.35rem;
    transition: all var(--transition);
}
.modal-close:hover { background: rgba(255,255,255,.08); color: var(--text); }

/* Form */
.form-group { margin-bottom: 1rem; }

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.form-control {
    width: 100%;
    padding: 0.6rem 0.85rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition);
}
.form-control:focus { border-color: var(--primary); }
.form-control::placeholder { color: var(--text-muted); }

textarea.form-control { resize: vertical; min-height: 90px; }

.form-color-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.form-color-row input[type="color"] {
    width: 48px;
    height: 38px;
    padding: 2px;
    border-radius: 0.4rem;
    border: 1px solid var(--border);
    background: var(--bg);
    cursor: pointer;
}

.form-error {
    color: var(--danger);
    font-size: 0.82rem;
    margin-top: 0.25rem;
    display: none;
}
.form-error.visible { display: block; }

.modal-actions {
    display: flex;
    gap: 0.6rem;
    justify-content: flex-end;
    margin-top: 1.35rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.6rem 1.2rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}
.btn-primary   { background: var(--primary);  color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-secondary:hover { background: rgba(255,255,255,.07); color: var(--text); }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn:disabled  { opacity: .5; cursor: not-allowed; }

/* ?? Kategorie-Verwaltungs-Modal (spezielle Liste) ???????????? */
.cat-manage-list { list-style: none; margin-bottom: 1rem; }
.cat-manage-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid var(--border);
}
.cat-manage-item:last-child { border-bottom: none; }
.cat-color-swatch {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    flex-shrink: 0;
}
.cat-manage-name { flex: 1; font-size: 0.9rem; }
.cat-manage-count { font-size: 0.78rem; color: var(--text-muted); }

/* ?? Confirm-Inline ??????????????????????????????????????????? */
.confirm-box {
    background: var(--bg);
    border: 1px solid var(--danger);
    border-radius: 0.5rem;
    padding: 0.7rem 1rem;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}
.confirm-box span { flex: 1; color: var(--text-muted); }

/* ?? Toast ????????????????????????????????????????????????????? */
.toast-container {
    position: fixed;
    bottom: 5.5rem;
    right: 2rem;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}
.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: 0.5rem;
    padding: 0.7rem 1rem;
    font-size: 0.88rem;
    color: var(--text);
    box-shadow: var(--shadow);
    animation: slideIn .25s ease both;
    pointer-events: all;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
@keyframes slideIn {
    from { opacity: 0; transform: translateX(16px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ?? Scrollbar ????????????????????????????????????????????????? */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }