/**
 * nexchat.css — NexChat Design System
 * Dark glassmorphism — NexChat — SDML GROUPE
 */

/* ─── RESET & BASE ─────────────────────────────────────────────────────────── */

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

:root {
    /* Palette principale */
    --nc-bg-base:       #0d0f14;
    --nc-bg-surface:    #12151c;
    --nc-bg-elevated:   #1a1e28;
    --nc-bg-overlay:    rgba(26,30,40,0.85);

    /* Glassmorphism */
    --nc-glass:         rgba(255,255,255,0.04);
    --nc-glass-border:  rgba(255,255,255,0.08);
    --nc-glass-hover:   rgba(255,255,255,0.07);
    --nc-blur:          blur(16px);

    /* Accent */
    --nc-accent:        #6c63ff;
    --nc-accent-light:  #8b85ff;
    --nc-accent-dark:   #4c45cc;
    --nc-accent-glow:   rgba(108,99,255,0.35);

    /* Statuts */
    --nc-success:       #22c55e;
    --nc-warning:       #f59e0b;
    --nc-danger:        #ef4444;
    --nc-info:          #3b82f6;

    /* Présence */
    --nc-online:        #22c55e;
    --nc-away:          #f59e0b;
    --nc-busy:          #ef4444;
    --nc-offline:       #6b7280;

    /* Texte */
    --nc-text-primary:  #f0f2f8;
    --nc-text-secondary:#9ca3af;
    --nc-text-muted:    #6b7280;
    --nc-text-accent:   var(--nc-accent-light);

    /* Borders */
    --nc-border:        rgba(255,255,255,0.06);
    --nc-border-strong: rgba(255,255,255,0.12);

    /* Shadows */
    --nc-shadow-sm:     0 2px 8px rgba(0,0,0,0.4);
    --nc-shadow-md:     0 4px 20px rgba(0,0,0,0.5);
    --nc-shadow-lg:     0 8px 40px rgba(0,0,0,0.6);
    --nc-shadow-accent: 0 0 20px var(--nc-accent-glow);

    /* Radius */
    --nc-radius-sm:     6px;
    --nc-radius-md:     12px;
    --nc-radius-lg:     20px;
    --nc-radius-xl:     28px;
    --nc-radius-full:   9999px;

    /* Transitions */
    --nc-transition:    all 0.2s cubic-bezier(0.4,0,0.2,1);
    --nc-transition-slow: all 0.35s cubic-bezier(0.4,0,0.2,1);

    /* Layout */
    --nc-sidebar-w:     72px;
    --nc-convlist-w:    300px;
    --nc-header-h:      60px;
}

html { font-size: 15px; scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--nc-bg-base);
    color: var(--nc-text-primary);
    line-height: 1.6;
    overflow: hidden;
    height: 100dvh;
}

a { color: var(--nc-accent-light); text-decoration: none; transition: var(--nc-transition); }
a:hover { color: var(--nc-text-primary); }

/* ─── SCROLLBAR ────────────────────────────────────────────────────────────── */

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: var(--nc-radius-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.22); }

/* ─── LAYOUT PRINCIPAL ─────────────────────────────────────────────────────── */

.nc-app {
    display: flex;
    height: 100dvh;
    overflow: hidden;
}

/* Barre icônes gauche */
.nc-nav {
    width: var(--nc-sidebar-w);
    background: var(--nc-bg-surface);
    border-right: 1px solid var(--nc-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 0;
    gap: 4px;
    flex-shrink: 0;
    z-index: 50;
}

.nc-nav-logo {
    width: 40px;
    height: 40px;
    background: var(--nc-accent);
    border-radius: var(--nc-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    box-shadow: var(--nc-shadow-accent);
    font-size: 1.2rem;
    color: #fff;
    font-weight: 800;
    letter-spacing: -1px;
}

.nc-nav-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--nc-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--nc-text-muted);
    cursor: pointer;
    position: relative;
    transition: var(--nc-transition);
    border: none;
    background: transparent;
    font-size: 1.1rem;
}
.nc-nav-btn:hover { background: var(--nc-glass); color: var(--nc-text-primary); }
.nc-nav-btn.active { background: var(--nc-accent-glow); color: var(--nc-accent-light); }

.nc-nav-badge {
    position: absolute;
    top: 6px; right: 6px;
    width: 8px; height: 8px;
    background: var(--nc-danger);
    border-radius: 50%;
    border: 2px solid var(--nc-bg-surface);
}

.nc-nav-spacer { flex: 1; }

/* Liste conversations */
.nc-convlist {
    width: var(--nc-convlist-w);
    background: var(--nc-bg-surface);
    border-right: 1px solid var(--nc-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
}

.nc-convlist-header {
    padding: 16px;
    border-bottom: 1px solid var(--nc-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.nc-convlist-title {
    font-size: 1rem;
    font-weight: 700;
    flex: 1;
}

.nc-convlist-body { flex: 1; overflow-y: auto; }

/* Zone principale */
.nc-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--nc-bg-base);
}

/* Panneau latéral droit (profil, infos groupe) */
.nc-panel {
    width: 280px;
    background: var(--nc-bg-surface);
    border-left: 1px solid var(--nc-border);
    flex-shrink: 0;
    overflow-y: auto;
    transform: translateX(100%);
    transition: var(--nc-transition-slow);
}
.nc-panel.open { transform: translateX(0); }

/* ─── SEARCH BAR ───────────────────────────────────────────────────────────── */

.nc-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--nc-glass);
    border: 1px solid var(--nc-glass-border);
    border-radius: var(--nc-radius-md);
    padding: 8px 12px;
    transition: var(--nc-transition);
}
.nc-search:focus-within {
    border-color: var(--nc-accent);
    background: var(--nc-glass-hover);
    box-shadow: 0 0 0 3px var(--nc-accent-glow);
}
.nc-search input {
    background: none;
    border: none;
    outline: none;
    color: var(--nc-text-primary);
    font-size: 0.875rem;
    flex: 1;
    width: 100%;
}
.nc-search input::placeholder { color: var(--nc-text-muted); }
.nc-search svg { color: var(--nc-text-muted); flex-shrink: 0; }

/* ─── LISTE CONVERSATIONS ──────────────────────────────────────────────────── */

.nc-conv-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    cursor: pointer;
    border-radius: var(--nc-radius-md);
    margin: 2px 6px;
    transition: var(--nc-transition);
    position: relative;
}
.nc-conv-item:hover { background: var(--nc-glass); }
.nc-conv-item.active { background: var(--nc-accent-glow); }

.nc-conv-meta { flex: 1; min-width: 0; }
.nc-conv-name { font-weight: 600; font-size: 0.875rem; truncate: true; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nc-conv-preview { font-size: 0.78rem; color: var(--nc-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.nc-conv-time { font-size: 0.72rem; color: var(--nc-text-muted); flex-shrink: 0; }

.nc-unread-badge {
    background: var(--nc-accent);
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
    border-radius: var(--nc-radius-full);
    padding: 1px 6px;
    min-width: 18px;
    text-align: center;
}

/* ─── AVATAR ───────────────────────────────────────────────────────────────── */

.nc-avatar {
    position: relative;
    flex-shrink: 0;
    display: inline-block;
}
.nc-avatar img, .nc-avatar .nc-avatar-placeholder {
    border-radius: 50%;
    object-fit: cover;
    display: block;
}
.nc-avatar-placeholder {
    background: linear-gradient(135deg, var(--nc-accent), var(--nc-accent-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}
.nc-avatar-sm  img, .nc-avatar-sm  .nc-avatar-placeholder { width: 36px; height: 36px; font-size: 0.85rem; }
.nc-avatar-md  img, .nc-avatar-md  .nc-avatar-placeholder { width: 44px; height: 44px; font-size: 1rem; }
.nc-avatar-lg  img, .nc-avatar-lg  .nc-avatar-placeholder { width: 64px; height: 64px; font-size: 1.4rem; }
.nc-avatar-xl  img, .nc-avatar-xl  .nc-avatar-placeholder { width: 96px; height: 96px; font-size: 2rem; }

.nc-status-dot {
    position: absolute;
    bottom: 1px; right: 1px;
    width: 10px; height: 10px;
    border-radius: 50%;
    border: 2px solid var(--nc-bg-surface);
}
.nc-status-dot.online  { background: var(--nc-online); }
.nc-status-dot.away    { background: var(--nc-away); }
.nc-status-dot.busy    { background: var(--nc-busy); }
.nc-status-dot.offline { background: var(--nc-offline); }

/* ─── HEADER CONVERSATION ──────────────────────────────────────────────────── */

.nc-chat-header {
    height: var(--nc-header-h);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    border-bottom: 1px solid var(--nc-border);
    background: var(--nc-bg-surface);
    flex-shrink: 0;
}

.nc-chat-header-info { flex: 1; min-width: 0; }
.nc-chat-header-name { font-weight: 700; font-size: 0.95rem; }
.nc-chat-header-status { font-size: 0.75rem; color: var(--nc-text-muted); }
.nc-chat-header-status.online { color: var(--nc-online); }

.nc-header-actions { display: flex; gap: 4px; }

/* ─── MESSAGES ─────────────────────────────────────────────────────────────── */

.nc-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nc-msg-group { display: flex; flex-direction: column; gap: 2px; margin-bottom: 8px; }

.nc-msg-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}
.nc-msg-row.mine { flex-direction: row-reverse; }

.nc-msg-bubble {
    max-width: 65%;
    padding: 10px 14px;
    border-radius: var(--nc-radius-lg);
    font-size: 0.875rem;
    line-height: 1.5;
    word-break: break-word;
    position: relative;
    box-shadow: var(--nc-shadow-sm);
}

.nc-msg-bubble.theirs {
    background: var(--nc-bg-elevated);
    border: 1px solid var(--nc-border);
    border-bottom-left-radius: var(--nc-radius-sm);
    color: var(--nc-text-primary);
}

.nc-msg-bubble.mine {
    background: linear-gradient(135deg, var(--nc-accent), var(--nc-accent-dark));
    color: #fff;
    border-bottom-right-radius: var(--nc-radius-sm);
}

.nc-msg-sender {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--nc-accent-light);
    margin-bottom: 2px;
}

.nc-msg-time {
    font-size: 0.68rem;
    opacity: 0.6;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.nc-msg-row.mine .nc-msg-time { justify-content: flex-end; }

.nc-msg-status svg { width: 12px; height: 12px; }
.nc-msg-status.read { color: var(--nc-info); }

/* Réply preview */
.nc-msg-reply {
    background: rgba(0,0,0,0.2);
    border-left: 3px solid var(--nc-accent-light);
    border-radius: 6px;
    padding: 6px 8px;
    margin-bottom: 6px;
    font-size: 0.78rem;
    opacity: 0.85;
}

/* Réactions emoji */
.nc-msg-reactions {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}
.nc-reaction {
    background: var(--nc-glass);
    border: 1px solid var(--nc-glass-border);
    border-radius: var(--nc-radius-full);
    padding: 2px 7px;
    font-size: 0.78rem;
    cursor: pointer;
    transition: var(--nc-transition);
    display: flex;
    align-items: center;
    gap: 4px;
}
.nc-reaction:hover { background: var(--nc-accent-glow); border-color: var(--nc-accent); }
.nc-reaction.mine { background: var(--nc-accent-glow); border-color: var(--nc-accent); }

/* Médias */
.nc-msg-image { max-width: 280px; border-radius: var(--nc-radius-md); cursor: pointer; display: block; }
.nc-msg-audio { width: 220px; }
.nc-msg-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(0,0,0,0.2);
    border-radius: var(--nc-radius-md);
    min-width: 180px;
}
.nc-msg-file-name { font-size: 0.8rem; font-weight: 600; }
.nc-msg-file-size { font-size: 0.7rem; opacity: 0.6; }

/* Typing indicator */
.nc-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    color: var(--nc-text-muted);
    font-size: 0.8rem;
    min-height: 24px;
}
.nc-typing-dots { display: flex; gap: 3px; }
.nc-typing-dot {
    width: 5px; height: 5px;
    background: var(--nc-text-muted);
    border-radius: 50%;
    animation: nc-typing 1.4s infinite;
}
.nc-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.nc-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes nc-typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-5px); opacity: 1; }
}

/* Date separator */
.nc-date-sep {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 12px 0;
    color: var(--nc-text-muted);
    font-size: 0.72rem;
}
.nc-date-sep::before, .nc-date-sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--nc-border);
}

/* ─── INPUT AREA ───────────────────────────────────────────────────────────── */

.nc-input-area {
    padding: 12px 16px;
    border-top: 1px solid var(--nc-border);
    background: var(--nc-bg-surface);
    flex-shrink: 0;
}

.nc-reply-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--nc-glass);
    border: 1px solid var(--nc-glass-border);
    border-radius: var(--nc-radius-md);
    padding: 8px 12px;
    margin-bottom: 8px;
    font-size: 0.8rem;
}
.nc-reply-preview .nc-reply-text { flex: 1; color: var(--nc-text-secondary); }
.nc-reply-preview .nc-reply-close { cursor: pointer; color: var(--nc-text-muted); }
.nc-reply-preview .nc-reply-close:hover { color: var(--nc-danger); }

.nc-input-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background: var(--nc-glass);
    border: 1px solid var(--nc-glass-border);
    border-radius: var(--nc-radius-xl);
    padding: 8px 12px;
    transition: var(--nc-transition);
}
.nc-input-row:focus-within {
    border-color: var(--nc-accent);
    box-shadow: 0 0 0 3px var(--nc-accent-glow);
}

.nc-input-actions { display: flex; gap: 2px; }

.nc-input-btn {
    width: 34px; height: 34px;
    border-radius: var(--nc-radius-full);
    display: flex; align-items: center; justify-content: center;
    color: var(--nc-text-muted);
    cursor: pointer;
    transition: var(--nc-transition);
    border: none; background: transparent; font-size: 1rem;
}
.nc-input-btn:hover { background: var(--nc-glass-hover); color: var(--nc-text-primary); }

.nc-input-field {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--nc-text-primary);
    font-size: 0.9rem;
    resize: none;
    max-height: 120px;
    min-height: 24px;
    line-height: 1.5;
    padding: 4px 0;
    font-family: inherit;
}
.nc-input-field::placeholder { color: var(--nc-text-muted); }

.nc-send-btn {
    width: 38px; height: 38px;
    border-radius: var(--nc-radius-full);
    background: var(--nc-accent);
    border: none;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    transition: var(--nc-transition);
    flex-shrink: 0;
    box-shadow: var(--nc-shadow-accent);
}
.nc-send-btn:hover { background: var(--nc-accent-light); transform: scale(1.05); }
.nc-send-btn:active { transform: scale(0.95); }
.nc-send-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* ─── BOUTONS ──────────────────────────────────────────────────────────────── */

.nc-btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 9px 18px;
    border-radius: var(--nc-radius-md);
    font-size: 0.875rem; font-weight: 600;
    cursor: pointer; border: none;
    transition: var(--nc-transition);
    white-space: nowrap;
}
.nc-btn-primary { background: var(--nc-accent); color: #fff; box-shadow: var(--nc-shadow-accent); }
.nc-btn-primary:hover { background: var(--nc-accent-light); transform: translateY(-1px); }
.nc-btn-secondary { background: var(--nc-glass); border: 1px solid var(--nc-glass-border); color: var(--nc-text-primary); }
.nc-btn-secondary:hover { background: var(--nc-glass-hover); border-color: var(--nc-border-strong); }
.nc-btn-danger { background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: var(--nc-danger); }
.nc-btn-danger:hover { background: rgba(239,68,68,0.25); }
.nc-btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.nc-btn-lg { padding: 12px 24px; font-size: 1rem; }
.nc-btn-icon { width: 38px; height: 38px; padding: 0; justify-content: center; }
.nc-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ─── INPUTS ───────────────────────────────────────────────────────────────── */

.nc-form-group { display: flex; flex-direction: column; gap: 6px; }
.nc-label { font-size: 0.8rem; font-weight: 600; color: var(--nc-text-secondary); }

.nc-input, .nc-select, .nc-textarea {
    background: var(--nc-glass);
    border: 1px solid var(--nc-glass-border);
    border-radius: var(--nc-radius-md);
    padding: 10px 14px;
    color: var(--nc-text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: var(--nc-transition);
    width: 100%;
}
.nc-input:focus, .nc-select:focus, .nc-textarea:focus {
    border-color: var(--nc-accent);
    box-shadow: 0 0 0 3px var(--nc-accent-glow);
    background: var(--nc-glass-hover);
}
.nc-input::placeholder, .nc-textarea::placeholder { color: var(--nc-text-muted); }
.nc-select option { background: var(--nc-bg-elevated); color: var(--nc-text-primary); }
.nc-textarea { resize: vertical; min-height: 80px; }

.nc-input-error { border-color: var(--nc-danger) !important; }
.nc-field-error { font-size: 0.75rem; color: var(--nc-danger); margin-top: 2px; }

/* ─── CARDS / PANELS ───────────────────────────────────────────────────────── */

.nc-card {
    background: var(--nc-glass);
    border: 1px solid var(--nc-glass-border);
    border-radius: var(--nc-radius-lg);
    backdrop-filter: var(--nc-blur);
    -webkit-backdrop-filter: var(--nc-blur);
}

.nc-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--nc-border);
    font-weight: 700;
}

.nc-card-body { padding: 20px; }
.nc-card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--nc-border);
    display: flex; justify-content: flex-end; gap: 8px;
}

/* ─── MODAL ────────────────────────────────────────────────────────────────── */

.nc-modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
    opacity: 0; pointer-events: none;
    transition: opacity 0.2s;
}
.nc-modal-backdrop.open { opacity: 1; pointer-events: all; }

.nc-modal {
    background: var(--nc-bg-elevated);
    border: 1px solid var(--nc-border-strong);
    border-radius: var(--nc-radius-xl);
    max-width: 480px;
    width: calc(100% - 32px);
    max-height: 90dvh;
    overflow-y: auto;
    box-shadow: var(--nc-shadow-lg);
    transform: scale(0.95) translateY(10px);
    transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
.nc-modal-backdrop.open .nc-modal { transform: scale(1) translateY(0); }

.nc-modal-header {
    padding: 20px 24px 16px;
    border-bottom: 1px solid var(--nc-border);
    display: flex; align-items: center; justify-content: space-between;
    font-weight: 700; font-size: 1rem;
}

.nc-modal-body { padding: 20px 24px; }
.nc-modal-footer { padding: 16px 24px; border-top: 1px solid var(--nc-border); display: flex; justify-content: flex-end; gap: 8px; }

.nc-modal-close {
    width: 30px; height: 30px;
    border-radius: var(--nc-radius-full);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; color: var(--nc-text-muted);
    border: none; background: var(--nc-glass);
    transition: var(--nc-transition);
}
.nc-modal-close:hover { background: var(--nc-danger); color: #fff; }

/* ─── TOAST NOTIFICATIONS ──────────────────────────────────────────────────── */

.nc-toasts {
    position: fixed;
    bottom: 20px; right: 20px;
    z-index: 9999;
    display: flex; flex-direction: column; gap: 8px;
    pointer-events: none;
}

.nc-toast {
    background: var(--nc-bg-elevated);
    border: 1px solid var(--nc-border-strong);
    border-radius: var(--nc-radius-lg);
    padding: 12px 16px;
    display: flex; align-items: center; gap: 10px;
    box-shadow: var(--nc-shadow-lg);
    min-width: 260px; max-width: 360px;
    animation: nc-toast-in 0.3s cubic-bezier(0.34,1.56,0.64,1);
    pointer-events: all;
    font-size: 0.875rem;
}
.nc-toast.removing { animation: nc-toast-out 0.2s ease forwards; }

.nc-toast-icon { font-size: 1.1rem; flex-shrink: 0; }
.nc-toast-msg { flex: 1; }
.nc-toast-close { cursor: pointer; opacity: 0.5; }
.nc-toast-close:hover { opacity: 1; }

.nc-toast.success { border-left: 3px solid var(--nc-success); }
.nc-toast.error   { border-left: 3px solid var(--nc-danger); }
.nc-toast.warning { border-left: 3px solid var(--nc-warning); }
.nc-toast.info    { border-left: 3px solid var(--nc-info); }

@keyframes nc-toast-in {
    from { transform: translateX(100%); opacity: 0; }
    to   { transform: translateX(0); opacity: 1; }
}
@keyframes nc-toast-out {
    to { transform: translateX(120%); opacity: 0; }
}

/* ─── DROPDOWN MENU ────────────────────────────────────────────────────────── */

.nc-dropdown { position: relative; display: inline-block; }
.nc-dropdown-menu {
    position: absolute;
    background: var(--nc-bg-elevated);
    border: 1px solid var(--nc-border-strong);
    border-radius: var(--nc-radius-md);
    padding: 6px;
    min-width: 160px;
    box-shadow: var(--nc-shadow-lg);
    z-index: 200;
    opacity: 0; pointer-events: none;
    transform: translateY(-4px) scale(0.97);
    transform-origin: top right;
    transition: all 0.15s;
}
.nc-dropdown.open .nc-dropdown-menu {
    opacity: 1; pointer-events: all;
    transform: translateY(0) scale(1);
}
.nc-dropdown-item {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 10px;
    border-radius: var(--nc-radius-sm);
    cursor: pointer; font-size: 0.875rem;
    transition: var(--nc-transition);
}
.nc-dropdown-item:hover { background: var(--nc-glass); }
.nc-dropdown-item.danger { color: var(--nc-danger); }
.nc-dropdown-item.danger:hover { background: rgba(239,68,68,0.1); }
.nc-dropdown-sep { height: 1px; background: var(--nc-border); margin: 4px 0; }

/* ─── EMOJI PICKER ─────────────────────────────────────────────────────────── */

.nc-emoji-picker {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background: var(--nc-bg-elevated);
    border: 1px solid var(--nc-border-strong);
    border-radius: var(--nc-radius-lg);
    padding: 12px;
    width: 300px;
    box-shadow: var(--nc-shadow-lg);
    z-index: 100;
    display: none;
}
.nc-emoji-picker.open { display: block; }

.nc-emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
}
.nc-emoji-btn {
    width: 32px; height: 32px;
    border-radius: var(--nc-radius-sm);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; font-size: 1.1rem;
    transition: var(--nc-transition);
    border: none; background: transparent;
}
.nc-emoji-btn:hover { background: var(--nc-glass); transform: scale(1.2); }

/* ─── BADGE / PILL ─────────────────────────────────────────────────────────── */

.nc-pill {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 8px;
    border-radius: var(--nc-radius-full);
    font-size: 0.72rem; font-weight: 600;
}
.nc-pill-accent  { background: var(--nc-accent-glow); color: var(--nc-accent-light); }
.nc-pill-success { background: rgba(34,197,94,0.15); color: var(--nc-success); }
.nc-pill-danger  { background: rgba(239,68,68,0.15); color: var(--nc-danger); }
.nc-pill-warning { background: rgba(245,158,11,0.15); color: var(--nc-warning); }
.nc-pill-muted   { background: var(--nc-glass); color: var(--nc-text-muted); }

/* ─── EMPTY STATE ──────────────────────────────────────────────────────────── */

.nc-empty {
    flex: 1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 12px; color: var(--nc-text-muted);
    text-align: center; padding: 40px;
}
.nc-empty-icon { font-size: 3rem; opacity: 0.5; }
.nc-empty-title { font-weight: 700; color: var(--nc-text-secondary); }
.nc-empty-subtitle { font-size: 0.875rem; }

/* ─── LOADER ───────────────────────────────────────────────────────────────── */

.nc-spinner {
    width: 24px; height: 24px;
    border: 3px solid var(--nc-glass-border);
    border-top-color: var(--nc-accent);
    border-radius: 50%;
    animation: nc-spin 0.8s linear infinite;
}
@keyframes nc-spin { to { transform: rotate(360deg); } }

.nc-skeleton {
    background: linear-gradient(90deg, var(--nc-glass) 25%, var(--nc-glass-hover) 50%, var(--nc-glass) 75%);
    background-size: 200% 100%;
    animation: nc-shimmer 1.5s infinite;
    border-radius: var(--nc-radius-sm);
}
@keyframes nc-shimmer { to { background-position: -200% 0; } }

/* ─── AUTH PAGES ───────────────────────────────────────────────────────────── */

.nc-auth-wrapper {
    min-height: 100dvh;
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(108,99,255,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(108,99,255,0.08) 0%, transparent 50%),
        var(--nc-bg-base);
}

.nc-auth-card {
    width: 100%; max-width: 420px;
    background: var(--nc-bg-surface);
    border: 1px solid var(--nc-border-strong);
    border-radius: var(--nc-radius-xl);
    padding: 36px 32px;
    box-shadow: var(--nc-shadow-lg);
}

.nc-auth-logo {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 28px;
}
.nc-auth-logo-icon {
    width: 40px; height: 40px;
    background: var(--nc-accent);
    border-radius: var(--nc-radius-md);
    display: flex; align-items: center; justify-content: center;
    font-weight: 900; font-size: 1.1rem; color: #fff;
    box-shadow: var(--nc-shadow-accent);
}
.nc-auth-logo-name { font-weight: 800; font-size: 1.3rem; }

.nc-auth-title { font-size: 1.4rem; font-weight: 800; margin-bottom: 6px; }
.nc-auth-subtitle { color: var(--nc-text-muted); font-size: 0.875rem; margin-bottom: 24px; }

/* ─── ALERT MESSAGES ───────────────────────────────────────────────────────── */

.nc-alert {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 12px 14px;
    border-radius: var(--nc-radius-md);
    font-size: 0.875rem;
    margin-bottom: 16px;
}
.nc-alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.25); color: #4ade80; }
.nc-alert-error   { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.25); color: #f87171; }
.nc-alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.25); color: #fbbf24; }
.nc-alert-info    { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.25); color: #60a5fa; }

/* ─── DIVIDER ──────────────────────────────────────────────────────────────── */

.nc-divider {
    display: flex; align-items: center; gap: 12px;
    color: var(--nc-text-muted); font-size: 0.78rem;
    margin: 16px 0;
}
.nc-divider::before, .nc-divider::after {
    content: ''; flex: 1; height: 1px; background: var(--nc-border);
}

/* ─── RESPONSIVE ───────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
    :root {
        --nc-sidebar-w: 0px;
        --nc-convlist-w: 100%;
    }

    .nc-nav { display: none; }

    .nc-convlist {
        position: fixed; left: 0; top: 0; bottom: 0;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.3s;
        width: 85%;
        max-width: 340px;
    }
    .nc-convlist.mobile-open { transform: translateX(0); }

    .nc-mobile-overlay {
        position: fixed; inset: 0; background: rgba(0,0,0,0.6);
        z-index: 99; display: none;
    }
    .nc-mobile-overlay.show { display: block; }

    .nc-panel { display: none; }

    .nc-msg-bubble { max-width: 85%; }

    .nc-auth-card { padding: 24px 20px; }
}

@media (max-width: 480px) {
    .nc-input-area { padding: 8px 10px; }
    .nc-messages { padding: 10px; }
}

/* ─── UTILITAIRES ──────────────────────────────────────────────────────────── */

.flex   { display: flex; }
.flex-1 { flex: 1; }
.gap-1  { gap: 4px; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.gap-4  { gap: 16px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-muted { color: var(--nc-text-muted); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.p-4  { padding: 16px; }
.hidden { display: none !important; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cursor-pointer { cursor: pointer; }

.nc-visually-hidden {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}