/* ── FileManager ──────────────────────────────────────────────────────────── */

:root {
    --fm-radius:  8px;
    --fm-gap:     12px;
    --fm-accent:  #1a6bb5;
    --fm-danger:  #c0392b;
    --fm-border:  #e2e6ea;
    --fm-bg:      #f8f9fa;
    --fm-card:    #ffffff;
    --fm-text:    #212529;
    --fm-muted:   #6c757d;
    --fm-shadow:  0 1px 4px rgba(0,0,0,.08), 0 2px 12px rgba(0,0,0,.05);
}

#file-manager {
    font-family: inherit;
    color: var(--fm-text);
    padding: 0;
}

/* ── Layout ───────────────────────────────────────────────────────────────── */

.fm-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--fm-gap);
    align-items: start;
}

@media (max-width: 700px) {
    .fm-layout { grid-template-columns: 1fr; }
}

/* ── Sidebar (folders) ────────────────────────────────────────────────────── */

.fm-sidebar {
    background: var(--fm-card);
    border: 1px solid var(--fm-border);
    border-radius: var(--fm-radius);
    overflow: hidden;
}

.fm-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid var(--fm-border);
    font-weight: 600;
    font-size: .875rem;
    color: var(--fm-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}

.fm-folder-list {
    list-style: none;
    margin: 0;
    padding: 6px 0;
}

.fm-folder-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    cursor: pointer;
    font-size: .9rem;
    border-left: 3px solid transparent;
    transition: background .12s, border-color .12s;
    user-select: none;
}

.fm-folder-item:hover { background: var(--fm-bg); }

.fm-folder-item.active {
    background: #e8f0fb;
    border-left-color: var(--fm-accent);
    color: var(--fm-accent);
    font-weight: 600;
}

.fm-folder-icon { font-size: 1rem; flex-shrink: 0; }

.fm-folder-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.fm-folder-count {
    font-size: .75rem;
    background: var(--fm-border);
    color: var(--fm-muted);
    border-radius: 10px;
    padding: 1px 7px;
    flex-shrink: 0;
}

.fm-folder-item.active .fm-folder-count {
    background: #c3d9f5;
    color: var(--fm-accent);
}

/* ── Main content ─────────────────────────────────────────────────────────── */

.fm-main {
    background: var(--fm-card);
    border: 1px solid var(--fm-border);
    border-radius: var(--fm-radius);
    min-height: 300px;
    overflow: hidden;
}

.fm-main-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--fm-border);
    gap: 10px;
    flex-wrap: wrap;
}

.fm-main-title {
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.fm-main-actions { display: flex; gap: 8px; }

.fm-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--fm-muted);
    gap: 10px;
    text-align: center;
}

.fm-empty-icon { font-size: 2.5rem; opacity: .4; }
.fm-empty-text { font-size: .9rem; }

/* ── File table ───────────────────────────────────────────────────────────── */

.fm-table-wrap { overflow-x: auto; }

.fm-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}

.fm-table th {
    padding: 10px 14px;
    text-align: left;
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--fm-muted);
    background: var(--fm-bg);
    border-bottom: 1px solid var(--fm-border);
    white-space: nowrap;
}

.fm-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--fm-border);
    vertical-align: middle;
}

.fm-table tr:last-child td { border-bottom: none; }

.fm-table tr:hover td { background: #fafbfc; }

.fm-file-name { font-weight: 500; }

.fm-placeholder-cell {
    display: flex;
    align-items: center;
    gap: 6px;
}

.fm-placeholder-tag {
    font-family: monospace;
    font-size: .78rem;
    background: #f0f4ff;
    color: #3b5bdb;
    border: 1px solid #c5d0f5;
    border-radius: 4px;
    padding: 2px 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.fm-copy-btn {
    flex-shrink: 0;
    background: none;
    border: 1px solid var(--fm-border);
    border-radius: 4px;
    padding: 3px 7px;
    cursor: pointer;
    font-size: .75rem;
    color: var(--fm-muted);
    transition: all .12s;
}

.fm-copy-btn:hover { background: var(--fm-bg); color: var(--fm-text); }
.fm-copy-btn.copied { color: #28a745; border-color: #b8e2c2; background: #f0faf3; }

.fm-download-link {
    color: var(--fm-accent);
    text-decoration: none;
    font-size: .85rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.fm-download-link:hover { text-decoration: underline; }

.fm-downloads-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: .8rem;
    color: var(--fm-muted);
}

.fm-edit-btn {
    background: none;
    border: 1px solid var(--fm-border);
    border-radius: 4px;
    padding: 4px 10px;
    cursor: pointer;
    font-size: .8rem;
    color: var(--fm-muted);
    transition: all .12s;
}

.fm-edit-btn:hover { background: var(--fm-bg); color: var(--fm-text); border-color: #adb5bd; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */

.fm-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: none;
    border-radius: var(--fm-radius);
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    transition: filter .12s, opacity .12s;
    white-space: nowrap;
}

.fm-btn-primary { background: var(--fm-accent); color: #fff; }
.fm-btn-primary:hover { filter: brightness(1.1); }

.fm-btn-secondary { background: var(--fm-bg); color: var(--fm-text); border: 1px solid var(--fm-border); }
.fm-btn-secondary:hover { background: #e9ecef; }

.fm-btn-danger { background: var(--fm-danger); color: #fff; }
.fm-btn-danger:hover { filter: brightness(1.1); }

.fm-btn:disabled { opacity: .45; cursor: default; filter: none; }

/* ── Loading ──────────────────────────────────────────────────────────────── */

.fm-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--fm-muted);
    gap: 10px;
    font-size: .9rem;
}

@keyframes fm-spin { to { transform: rotate(360deg); } }

.fm-spinner {
    width: 18px; height: 18px;
    border: 2px solid var(--fm-border);
    border-top-color: var(--fm-accent);
    border-radius: 50%;
    animation: fm-spin .7s linear infinite;
    flex-shrink: 0;
}

/* ── Modal ────────────────────────────────────────────────────────────────── */

.fm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
}

.fm-modal {
    background: var(--fm-card);
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0,0,0,.18);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.fm-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--fm-border);
    gap: 12px;
}

.fm-modal-title { font-weight: 600; font-size: 1rem; }

.fm-modal-close {
    background: none; border: none; cursor: pointer;
    font-size: 1.1rem; color: var(--fm-muted); padding: 2px 6px;
    border-radius: 4px; transition: background .12s;
}
.fm-modal-close:hover { background: var(--fm-bg); color: var(--fm-text); }

.fm-modal-body {
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.fm-modal-foot {
    padding: 14px 20px 18px;
    border-top: 1px solid var(--fm-border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ── Form elements ────────────────────────────────────────────────────────── */

.fm-field { display: flex; flex-direction: column; gap: 5px; }

.fm-label {
    font-size: .8rem;
    font-weight: 600;
    color: var(--fm-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
}

.fm-input {
    padding: 9px 11px;
    border: 1px solid var(--fm-border);
    border-radius: 6px;
    font-size: .9rem;
    font-family: inherit;
    color: var(--fm-text);
    background: var(--fm-card);
    transition: border-color .15s, box-shadow .15s;
    width: 100%;
    box-sizing: border-box;
}

.fm-input:focus {
    outline: none;
    border-color: var(--fm-accent);
    box-shadow: 0 0 0 3px rgba(26,107,181,.12);
}

.fm-input:disabled { background: var(--fm-bg); color: var(--fm-muted); cursor: default; }
.fm-input.fm-invalid { border-color: var(--fm-danger); }
.fm-input.fm-valid { border-color: #28a745; }

/* ── Upload zone ──────────────────────────────────────────────────────────── */

.fm-upload-zone {
    border: 2px dashed var(--fm-border);
    border-radius: 8px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all .15s;
    position: relative;
    color: var(--fm-muted);
    font-size: .875rem;
}

.fm-upload-zone:hover,
.fm-upload-zone.dragover {
    border-color: var(--fm-accent);
    background: #f0f6ff;
    color: var(--fm-accent);
}

.fm-upload-zone input[type=file] {
    position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}

.fm-upload-zone-icon { font-size: 1.6rem; margin-bottom: 6px; }
.fm-upload-zone-label { font-weight: 500; }
.fm-upload-zone-sub { font-size: .78rem; margin-top: 3px; opacity: .7; }

.fm-upload-result {
    border-radius: 6px;
    padding: 10px 12px;
    font-size: .85rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.fm-upload-result.success { background: #f0faf3; color: #1a6b35; border: 1px solid #b8e2c2; }
.fm-upload-result.error   { background: #fdf0f0; color: #a52a2a; border: 1px solid #f0b8b8; }
.fm-upload-result.loading { background: var(--fm-bg); color: var(--fm-muted); border: 1px solid var(--fm-border); }

/* ── Note / info box ──────────────────────────────────────────────────────── */

.fm-note {
    background: #fff8e1;
    border: 1px solid #ffe082;
    border-radius: 6px;
    padding: 10px 12px;
    font-size: .82rem;
    color: #7a5f00;
}

/* ── Toast notifications ──────────────────────────────────────────────────── */

#fm-toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.fm-toast {
    pointer-events: auto;
    background: #2d3748;
    color: #fff;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: .875rem;
    box-shadow: 0 4px 16px rgba(0,0,0,.25);
    display: flex;
    align-items: center;
    gap: 10px;
    max-width: 340px;
    animation: fm-toast-in .2s ease;
}

.fm-toast.success { background: #1a6b35; }
.fm-toast.error   { background: var(--fm-danger); }
.fm-toast.warning { background: #856404; }

@keyframes fm-toast-in {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fm-toast-out {
    to { opacity: 0; transform: translateY(10px); }
}