:root {
    --sidebar-w:    260px;
    --bg:           #f5f5f5;
    --sidebar-bg:   #ffffff;
    --surface:      #ffffff;
    --surface-2:    #efefef;
    --border:       #e0e0e0;
    --accent:       #CC0303;
    --accent-light: #e83333;
    --accent-dim:   rgba(204,3,3,0.08);
    --accent-glow:  rgba(204,3,3,0.22);
    --danger:       #CC0303;
    --success:      #22b573;
    --text:         #1a1a1a;
    --muted:        #565656;
    --sans:         'Manrope', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }




/* ══════════════════════════════════════
   LAYOUT PRINCIPAL
══════════════════════════════════════ */
.page-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* ── Header de page ── */
.page-header {
    font-family: "Manrope", sans-serif;
    padding: 1.5rem 2rem 1.25rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-header-left h1 {
    font-family: "Manrope", sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.page-header-left h1 span {
    font-family: "Manrope", sans-serif;
    color: var(--accent);
}

.page-header-left p {
    font-size: 0.78rem;
    color: var(--muted);
    font-family: "Manrope", sans-serif;
    margin-top: 0.15rem;
}

/* ── Barre de recherche ── */
.search-wrapper {
    position: relative;
    flex: 1;
    max-width: 380px;
}

.search-wrapper svg {
    position: absolute;
    left: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    width: 15px; height: 15px;
    color: var(--muted);
    pointer-events: none;
}

.search-wrapper input {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.4rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: "Manrope", sans-serif;
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.18s, box-shadow 0.18s;
}

.search-wrapper input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.search-wrapper input::placeholder { color: var(--muted); }

#search-count {
    font-size: 0.75rem;
    color: var(--muted);
    font-family: "Manrope", sans-serif;
    white-space: nowrap;
}

/* ══════════════════════════════════════
   SPLIT VIEW
══════════════════════════════════════ */
.split-view {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ── Liste des documents (gauche) ── */
.doc-list-panel {
    width: 320px;
    flex-shrink: 0;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--surface);
}

.doc-list-header {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.68rem;
    font-family: "Manrope", sans-serif;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.doc-list {
    overflow-y: auto;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.doc-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.13s;
    text-decoration: none;
    color: inherit;
}

.doc-item:hover { background: rgba(0,0,0,0.03); }

.doc-item.active {
    background: var(--accent-dim);
    border-left: 3px solid var(--accent);
}

.doc-icon {
    width: 36px;
    height: 44px;
    flex-shrink: 0;
    background: rgba(204,3,3,0.08);
    border: 1px solid rgba(204,3,3,0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    font-family: "Manrope", sans-serif;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.doc-info { flex: 1; min-width: 0; }

.doc-name {
    font-family: "Manrope", sans-serif;
    font-size: 0.83rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.2rem;
}

.doc-item.active .doc-name { color: var(--accent); }

.doc-meta {
    font-size: 0.7rem;
    color: var(--muted);
    font-family: "Manrope", sans-serif;
    display: flex;
    gap: 0.5rem;
}

.doc-actions {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex-shrink: 0;
}

.doc-btn {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.13s, color 0.13s, border-color 0.13s;
    text-decoration: none;
}

.doc-btn:hover {
    background: var(--accent-dim);
    color: var(--accent);
    border-color: rgba(204,3,3,0.25);
}

.doc-btn svg { width: 14px; height: 14px; }

/* Aucun résultat */
.no-results {
    display: none;
    padding: 2.5rem 1rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.85rem;
    font-style: italic;
}

/* Surlignage recherche */
mark {
    background: rgba(204,3,3,0.15);
    color: var(--accent);
    border-radius: 2px;
    padding: 0 2px;
}

/* ── Panneau PDF (droite) ── */
.pdf-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg);
}

.pdf-toolbar {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    background: var(--surface);
}

.pdf-toolbar-title {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pdf-toolbar-title span {
    font-size: 0.72rem;
    color: var(--muted);
    font-family: "Manrope", sans-serif;
    font-weight: 400;
    margin-left: 0.5rem;
}

.pdf-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.9rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    font-family: "Manrope", sans-serif;
    cursor: pointer;
    text-decoration: none;
    border: none;
    transition: background 0.15s, transform 0.1s;
}

.pdf-action-btn svg { width: 14px; height: 14px; }

.btn-download {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid rgba(204,3,3,0.25);
}

.btn-download:hover { background: rgba(204,3,3,0.16); transform: translateY(-1px); }

.btn-newtab {
    background: rgba(0,0,0,0.04);
    color: var(--muted);
    border: 1px solid var(--border);
}

.btn-newtab:hover { background: rgba(0,0,0,0.08); color: var(--text); }

/* Viewer iframe */
#pdf-viewer {
    flex: 1;
    border: none;
    width: 100%;
}

/* Écran d'accueil (aucun doc sélectionné) */
.pdf-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--muted);
    text-align: center;
    padding: 2rem;
}

.pdf-empty svg {
    width: 56px; height: 56px;
    color: var(--border);
}

.pdf-empty p {
    font-family: "Manrope", sans-serif;
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 280px;
}

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 900px) {
    .doc-list-panel { width: 260px; }
}

@media (max-width: 768px) {
    body { margin-left: 0; }
    #nav-burger { display: flex; }
    #sidebar { transform: translateX(calc(-1 * var(--sidebar-w))); transition: transform .28s cubic-bezier(.4,0,.2,1); }
    #sidebar.open { transform: translateX(0); box-shadow: 4px 0 24px rgba(0,0,0,.12); }
    #nav-overlay.visible { display: block; }
    #nav-burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    #nav-burger.open span:nth-child(2) { opacity: 0; }
    #nav-burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

    .split-view { flex-direction: column; }
    .doc-list-panel { width: 100%; height: 220px; border-right: none; border-bottom: 1px solid var(--border); }
    .doc-list { display: flex; flex-direction: row; overflow-x: auto; overflow-y: hidden; }
    .doc-item { flex-direction: column; min-width: 140px; border-bottom: none; border-right: 1px solid var(--border); text-align: center; }
    .doc-meta { justify-content: center; }
    .doc-actions { flex-direction: row; }
}