/* =========================================================
   XERA1 — Messagerie (UI moderne & responsive)
   Toutes les règles sont scopées sur #messages-shell pour
   l'emporter sur les anciennes règles de style.css.
   ========================================================= */

#messages-shell {
    --msg-bg: #0b0b10;
    --msg-panel: #111117;
    --msg-elevated: #1a1a22;
    --msg-hover: rgba(255, 255, 255, 0.045);
    --msg-active: rgba(139, 92, 246, 0.14);
    --msg-border: rgba(255, 255, 255, 0.07);
    --msg-text: #f4f4f5;
    --msg-muted: #8b8b96;
    --msg-accent: #8b5cf6;
    --msg-accent-strong: #7c3aed;
    --msg-accent-soft: rgba(139, 92, 246, 0.16);
    --msg-in-bubble: #1d1d26;
    --msg-in-text: #ececf1;
    --msg-out-bubble: linear-gradient(140deg, #7c3aed 0%, #6d28d9 100%);
    --msg-out-text: #ffffff;
    --msg-chat-bg:
        radial-gradient(circle at 15% 0%, rgba(124, 58, 237, 0.1), transparent 40%),
        radial-gradient(circle at 100% 100%, rgba(99, 102, 241, 0.07), transparent 45%),
        #0b0b10;
    --msg-radius: 18px;
    --msg-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html.light-mode #messages-shell {
    --msg-bg: #f6f6f9;
    --msg-panel: #ffffff;
    --msg-elevated: #f1f1f5;
    --msg-hover: rgba(15, 23, 42, 0.045);
    --msg-active: rgba(124, 58, 237, 0.1);
    --msg-border: rgba(15, 23, 42, 0.09);
    --msg-text: #18181b;
    --msg-muted: #6b6b76;
    --msg-in-bubble: #ffffff;
    --msg-in-text: #18181b;
    --msg-chat-bg:
        radial-gradient(circle at 15% 0%, rgba(124, 58, 237, 0.07), transparent 40%),
        #f4f4f8;
}

/* ---------- Page plein écran (messages.html) ---------- */

body.messages-screen {
    height: 100vh;
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    padding-bottom: 0 !important;
    background: #09090b;
}

html.light-mode body.messages-screen {
    background: #eeeef3;
}

body.messages-screen #messages {
    flex: 1;
    min-height: 0 !important;
    height: auto !important;
    display: flex !important;
    padding: 0 !important;
}

body.messages-screen .messages-container {
    width: 100%;
    max-width: 1440px;
    height: 100%;
    min-height: 0;
    margin: 0 auto;
    padding: 16px;
    display: flex;
}

body.messages-screen .messages-mount {
    flex: 1;
    min-width: 0;
    min-height: 0;
    display: flex;
}

body.messages-screen #messages-floating-back-btn {
    display: none !important;
}

/* Neutralise le bloc « FIX MESSAGES LAYOUT SCROLL » de style.css, qui
   réserve 68px pour une nav pourtant masquée hors de l'index. */
html body.messages-screen #messages {
    height: auto !important;
    flex: 1 1 auto !important;
    flex-direction: row !important;
}

html body.messages-screen .messages-container {
    max-width: 1440px !important;
    margin: 0 auto !important;
    padding: 16px !important;
    flex-direction: row !important;
}

html body.messages-screen .messages-mount {
    flex-direction: row !important;
}

html body.messages-screen #messages-shell.messages-page {
    height: auto !important;
}

/* ---------- Coque ---------- */

#messages-shell {
    position: relative;
    display: flex;
    flex: 1;
    width: 100%;
    height: 100%;
    min-height: 0;
    overflow: hidden;
    color: var(--msg-text);
    background: var(--msg-panel);
    border: 1px solid var(--msg-border);
    border-radius: 22px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
    font-family: var(--font-body, "Inter", system-ui, sans-serif);
}

/* Messagerie intégrée dans une autre page (index SPA, profils) */
body:not(.messages-screen) #messages-shell {
    height: calc(100dvh - 140px);
    min-height: 480px;
}


html.light-mode #messages-shell {
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.1);
}

#messages-shell button {
    font-family: inherit;
}

#messages-shell .messages-icon-btn {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--msg-muted);
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition:
        background 0.2s,
        color 0.2s;
}

#messages-shell .messages-icon-btn:hover {
    background: var(--msg-hover);
    color: var(--msg-text);
}

#messages-shell .messages-icon-btn:focus-visible,
#messages-shell .thread-item:focus-visible,
#messages-shell .chat-attach-btn:focus-visible,
#messages-shell .chat-send-btn:focus-visible,
#messages-shell .messages-tab-btn:focus-visible {
    outline: 2px solid var(--msg-accent);
    outline-offset: 2px;
}

/* ---------- Liste des conversations ---------- */

#messages-shell .threads-panel {
    width: 360px;
    max-width: none;
    max-height: none;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: auto;
    padding: 0;
    overflow: hidden;
    background: var(--msg-panel);
    border: 0;
    border-right: 1px solid var(--msg-border);
}

#messages-shell .messages-head {
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin: 0;
    padding: 16px 16px 8px;
    border: 0;
}

#messages-shell .messages-head-title-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

#messages-shell .messages-head h3 {
    margin: 0;
    font-family: var(--font-heading, "Outfit", sans-serif);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--msg-text);
}

#messages-shell .messages-search-bar {
    position: relative;
    border: 0;
    margin: 0;
    padding: 6px 16px 10px;
}

#messages-shell .messages-search-bar i {
    position: absolute;
    top: 50%;
    left: 30px;
    margin: 0;
    transform: translateY(calc(-50% - 2px));
    color: var(--msg-muted);
    font-size: 0.85rem;
    pointer-events: none;
}

#messages-shell .messages-search-bar input {
    width: 100%;
    height: 40px;
    padding: 0 14px 0 38px;
    border: 1px solid transparent;
    border-radius: 12px;
    background: var(--msg-elevated);
    color: var(--msg-text);
    font-size: 0.92rem;
    outline: none;
    transition:
        border-color 0.2s,
        background 0.2s;
}

#messages-shell .messages-search-bar input::placeholder {
    color: var(--msg-muted);
}

#messages-shell .messages-search-bar input:focus {
    border-color: var(--msg-accent);
    background: var(--msg-panel);
}

#messages-shell .messages-tabs {
    display: flex;
    gap: 6px;
    margin: 0;
    padding: 0 16px 10px;
    border: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

#messages-shell .messages-tabs::-webkit-scrollbar {
    display: none;
}

#messages-shell .messages-tab-btn {
    flex: 0 0 auto;
    padding: 6px 14px;
    border: 0;
    border-radius: 999px;
    background: var(--msg-elevated);
    color: var(--msg-muted);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition:
        background 0.2s,
        color 0.2s;
}

#messages-shell .messages-tab-btn:hover {
    color: var(--msg-text);
}

#messages-shell .messages-tab-btn.active {
    background: var(--msg-accent-soft);
    color: var(--msg-accent);
    border: 0;
}

#messages-shell .threads-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 2px 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

#messages-shell .thread-item {
    position: relative;
    width: 100%;
    min-height: 68px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border: 0;
    border-radius: 14px;
    background: transparent;
    color: var(--msg-text);
    text-align: left;
    cursor: pointer;
    transition: background 0.15s;
}

#messages-shell .thread-item:hover {
    background: var(--msg-hover);
    border: 0;
}

#messages-shell .thread-item.active {
    background: var(--msg-active);
}

#messages-shell .thread-avatar {
    width: 48px;
    height: 48px;
    margin: 0;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 0;
    background: var(--msg-elevated);
}

#messages-shell .thread-meta {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

#messages-shell .thread-name-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}

#messages-shell .thread-name {
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--msg-text);
}

#messages-shell .thread-time {
    flex-shrink: 0;
    font-size: 0.72rem;
    color: var(--msg-muted);
}

#messages-shell .thread-snippet {
    display: block;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    padding-right: 28px;
    font-size: 0.85rem;
    color: var(--msg-muted);
}

#messages-shell .thread-item.has-unread .thread-snippet {
    color: var(--msg-text);
    font-weight: 500;
}

#messages-shell .thread-item.has-unread .thread-time {
    color: var(--msg-accent);
    font-weight: 600;
}

#messages-shell .thread-unread {
    position: absolute;
    right: 12px;
    bottom: 14px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--msg-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
}

#messages-shell .threads-empty-state,
#messages-shell .threads-list .loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding: 48px 16px;
    border: 0;
    background: none;
    color: var(--msg-muted);
    font-size: 0.9rem;
    text-align: center;
}

#messages-shell .threads-empty-state i {
    font-size: 1.6rem;
    opacity: 0.6;
}

#messages-shell .threads-empty-state p {
    margin: 0;
}

/* ---------- Panneau de discussion ---------- */

#messages-shell .chat-panel {
    flex: 1;
    min-width: 0;
    min-height: 0;
    height: auto;
    display: flex;
    flex-direction: column;
    padding: 0;
    background: var(--msg-chat-bg);
    border: 0;
}

#messages-shell .chat-header {
    position: relative;
    z-index: 2;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 68px;
    margin: 0;
    padding: 12px 16px;
    background: color-mix(in srgb, var(--msg-panel) 88%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 0;
    border-bottom: 1px solid var(--msg-border);
    box-shadow: none;
}

#messages-shell .messages-back-btn {
    display: none !important;
}

#messages-shell .chat-header-meta {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

#messages-shell .chat-header-meta::after {
    content: none;
}

#messages-shell .chat-header-avatar {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border-radius: 50%;
    object-fit: cover;
    background: var(--msg-elevated);
}

#messages-shell .chat-header-info {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

#messages-shell #chat-header-name {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 1rem;
    font-weight: 600;
    color: var(--msg-text);
}

#messages-shell #chat-header-name a {
    color: inherit;
    text-decoration: none;
}

#messages-shell #chat-header-name a:hover {
    text-decoration: underline;
}

#messages-shell #chat-header-sub {
    font-size: 0.78rem;
    color: var(--msg-muted);
}

#messages-shell #chat-header-sub[hidden] {
    display: none;
}

#messages-shell .chat-header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

#messages-shell .chat-panel.empty .chat-header,
#messages-shell .chat-panel.empty .chat-input-row {
    display: none;
}

#messages-shell .chat-header-menu-wrap {
    position: relative;
}

#messages-shell .chat-header-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    z-index: 20;
    min-width: 220px;
    padding: 6px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--msg-border);
    border-radius: 14px;
    background: var(--msg-panel);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
    animation: msg-pop 0.16s var(--msg-ease);
}

#messages-shell .chat-header-menu[hidden] {
    display: none;
}

#messages-shell .chat-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--msg-text);
    font-size: 0.88rem;
    text-align: left;
    cursor: pointer;
}

#messages-shell .chat-menu-item:hover:not(:disabled) {
    background: var(--msg-hover);
}

#messages-shell .chat-menu-item.danger {
    color: #f87171;
}

#messages-shell .chat-menu-item:disabled {
    opacity: 0.5;
    cursor: default;
}

/* ---------- Fil de messages ---------- */

#messages-shell .chat-messages {
    flex: 1;
    min-height: 0;
    height: auto;
    max-height: none;
    overflow-y: auto;
    overscroll-behavior: contain;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 16px clamp(12px, 4vw, 40px) 20px;
    background: transparent;
    border: 0;
}

#messages-shell .chat-messages::-webkit-scrollbar,
#messages-shell .threads-list::-webkit-scrollbar {
    width: 6px;
}

#messages-shell .chat-messages::-webkit-scrollbar-thumb,
#messages-shell .threads-list::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: var(--msg-border);
}

#messages-shell .messages-date-separator {
    position: sticky;
    top: 0;
    z-index: 1;
    align-self: center;
    margin: 14px 0 10px;
    padding: 0;
    background: none;
    box-shadow: none;
}

#messages-shell .messages-date-separator span {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--msg-elevated) 85%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--msg-muted);
    font-size: 0.74rem;
    font-weight: 600;
}

#messages-shell .messages-date-separator span::first-letter {
    text-transform: uppercase;
}

#messages-shell .message-bubble-wrap {
    display: flex;
    max-width: min(72%, 560px);
    margin-top: 10px;
    animation: msg-in 0.22s var(--msg-ease);
}

#messages-shell .message-bubble-wrap.group-continued {
    margin-top: 2px;
}

#messages-shell .message-bubble-wrap.incoming {
    align-self: flex-start;
}

#messages-shell .message-bubble-wrap.outgoing {
    align-self: flex-end;
    justify-content: flex-end;
}

#messages-shell .message-bubble {
    position: relative;
    min-width: 0;
    display: flex;
    flex-direction: column;
    padding: 8px 12px 6px;
    border-radius: var(--msg-radius);
    font-size: 0.94rem;
    line-height: 1.45;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

#messages-shell .incoming .message-bubble {
    background: var(--msg-in-bubble);
    color: var(--msg-in-text);
    border-bottom-left-radius: 6px;
}

#messages-shell .outgoing .message-bubble {
    background: var(--msg-out-bubble);
    color: var(--msg-out-text);
    border-bottom-right-radius: 6px;
}

html.light-mode #messages-shell .incoming .message-bubble {
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

/* Regroupement : seul le dernier message du groupe garde la « queue » */
#messages-shell .incoming.group-has-next .message-bubble {
    border-bottom-left-radius: 6px;
}

#messages-shell .incoming.group-continued .message-bubble {
    border-top-left-radius: 6px;
}

#messages-shell .outgoing.group-has-next .message-bubble {
    border-bottom-right-radius: 6px;
}

#messages-shell .outgoing.group-continued .message-bubble {
    border-top-right-radius: 6px;
}

#messages-shell .message-bubble-wrap.is-pending .message-bubble {
    opacity: 0.7;
}

#messages-shell .chat-body {
    margin: 0;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    color: inherit;
    font-size: inherit;
}

#messages-shell .chat-sender-row {
    display: none;
}

#messages-shell .message-meta {
    align-self: flex-end;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin: 2px 0 0 12px;
    float: none;
    position: static;
    font-size: 0.68rem;
    line-height: 1;
    opacity: 0.7;
    white-space: nowrap;
}

#messages-shell .message-meta .chat-time {
    font-size: inherit;
    color: inherit;
    opacity: 1;
    margin: 0;
}

#messages-shell .message-status-icon {
    font-size: 0.66rem;
}

/* Médias */
#messages-shell .chat-media-wrap,
#messages-shell .chat-media-link {
    display: block;
    width: 300px;
    max-width: 100%;
    margin: 0 0 4px;
    overflow: hidden;
    border-radius: 12px;
}

#messages-shell .chat-media {
    display: block;
    width: 100%;
    max-height: 340px;
    object-fit: cover;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.25);
}

#messages-shell .message-bubble.media-only {
    padding: 4px;
}

#messages-shell .message-bubble.media-only .chat-media-wrap,
#messages-shell .message-bubble.media-only .chat-media-link {
    margin: 0;
}

#messages-shell .message-bubble.media-only .chat-media-label {
    display: none;
}

#messages-shell .message-bubble.media-only .message-meta {
    position: absolute;
    right: 10px;
    bottom: 10px;
    margin: 0;
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    opacity: 1;
}

/* États vides */
#messages-shell .chat-empty-state,
#messages-shell .chat-messages > .loading-state {
    margin: auto;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 24px;
    border: 0;
    background: none;
    color: var(--msg-muted);
    text-align: center;
}

#messages-shell .chat-empty-icon {
    width: 72px;
    height: 72px;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 24px;
    background: var(--msg-accent-soft);
    color: var(--msg-accent);
    font-size: 1.8rem;
}

#messages-shell .chat-empty-state h4 {
    margin: 0;
    font-family: var(--font-heading, "Outfit", sans-serif);
    font-size: 1.2rem;
    color: var(--msg-text);
}

#messages-shell .chat-empty-state p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ---------- Zone de saisie ---------- */

#messages-shell .chat-input-row {
    flex-shrink: 0;
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
    padding: 10px clamp(10px, 3vw, 24px) max(12px, env(safe-area-inset-bottom));
    background: transparent;
    border: 0;
}

#messages-shell .chat-composer {
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    max-width: 920px;
    margin: 0 auto;
}

#messages-shell .chat-composer:focus-within {
    border: 0;
    box-shadow: none;
}

#messages-shell .chat-compose-controls {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    width: 100%;
    padding: 5px;
    border: 1px solid var(--msg-border);
    border-radius: 26px;
    background: var(--msg-panel);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    transition: border-color 0.2s;
}

#messages-shell .chat-compose-controls:focus-within {
    border-color: color-mix(in srgb, var(--msg-accent) 60%, transparent);
}

#messages-shell .chat-attach-btn,
#messages-shell .chat-send-btn {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    border: 0;
    border-radius: 50%;
    font-size: 1.05rem;
    cursor: pointer;
    transition:
        background 0.2s,
        color 0.2s,
        transform 0.15s,
        opacity 0.2s;
}

#messages-shell .chat-attach-btn {
    background: transparent;
    color: var(--msg-muted);
}

#messages-shell .chat-attach-btn:hover:not(:disabled) {
    background: var(--msg-hover);
    color: var(--msg-text);
}

#messages-shell .chat-send-btn {
    background: var(--msg-elevated);
    color: var(--msg-muted);
}

#messages-shell .chat-send-btn.active {
    background: var(--msg-accent-strong);
    color: #fff;
    box-shadow: 0 6px 16px rgba(124, 58, 237, 0.35);
}

#messages-shell .chat-send-btn.active:hover {
    transform: scale(1.05);
}

#messages-shell .chat-send-btn.active:active {
    transform: scale(0.95);
}

#messages-shell .chat-send-btn.is-busy i {
    animation: msg-pulse 1s ease-in-out infinite;
}

#messages-shell .chat-attach-btn:disabled,
#messages-shell .chat-send-btn:disabled {
    cursor: default;
    opacity: 0.55;
}

#messages-shell .chat-input-row .form-input.chat-input-textarea,
#messages-shell .chat-input-textarea {
    flex: 1;
    min-width: 0;
    min-height: 42px;
    max-height: 160px;
    margin: 0;
    padding: 11px 6px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    color: var(--msg-text);
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.35;
    resize: none;
    outline: none;
}

#messages-shell .chat-input-textarea:focus {
    border-color: transparent !important;
    box-shadow: none !important;
}

#messages-shell .chat-input-textarea::placeholder {
    color: var(--msg-muted);
}

#messages-shell .chat-input-textarea:disabled {
    background: transparent;
    cursor: not-allowed;
}

#messages-shell .chat-compose-hint {
    display: block;
    padding: 0 8px;
    font-size: 0.72rem;
    color: var(--msg-muted);
    text-align: center;
    opacity: 0.8;
}

#messages-shell .chat-compose-hint[hidden] {
    display: none;
}

#messages-shell .chat-attachment-preview {
    width: 100%;
}

#messages-shell .chat-attachment-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    border: 1px solid var(--msg-border);
    border-radius: 16px;
    background: var(--msg-panel);
}

#messages-shell .chat-attachment-visual {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 10px;
}

#messages-shell .chat-attachment-thumb {
    width: 100%;
    height: 100%;
    min-height: 0;
    aspect-ratio: auto;
    object-fit: cover;
}

#messages-shell .chat-attachment-meta {
    flex: 1;
    min-width: 0;
}

#messages-shell .chat-attachment-title {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--msg-text);
}

#messages-shell .chat-attachment-subtitle {
    font-size: 0.76rem;
    color: var(--msg-muted);
}

#messages-shell .chat-attachment-remove {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border: 0;
    border-radius: 50%;
    background: var(--msg-elevated);
    color: var(--msg-text);
    font-size: 1.1rem;
    cursor: pointer;
}

/* ---------- Animations ---------- */

@keyframes msg-in {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes msg-pop {
    from {
        opacity: 0;
        transform: translateY(-4px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes msg-pulse {
    50% {
        opacity: 0.4;
    }
}

@media (prefers-reduced-motion: reduce) {
    #messages-shell *,
    #messages-shell *::before,
    #messages-shell *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

/* ---------- Tablette ---------- */

@media (max-width: 1100px) {
    #messages-shell .threads-panel {
        width: 310px;
    }

    #messages-shell .message-bubble-wrap {
        max-width: 80%;
    }
}

/* ---------- Mobile : un panneau à la fois, transition glissée ---------- */

@media (max-width: 860px) {
    html body.messages-screen .messages-container {
        max-width: none !important;
        padding: 0 !important;
    }

    #messages-shell {
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }

    #messages-shell .threads-panel,
    #messages-shell .chat-panel {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        display: flex;
        border-right: 0;
        transition:
            transform 0.32s var(--msg-ease),
            opacity 0.32s var(--msg-ease);
    }

    #messages-shell .threads-panel {
        z-index: 1;
    }

    #messages-shell .chat-panel {
        z-index: 2;
        transform: translateX(100%);
        visibility: hidden;
        transition:
            transform 0.32s var(--msg-ease),
            visibility 0s linear 0.32s;
    }

    #messages-shell.mobile-thread-open .chat-panel {
        transform: none;
        visibility: visible;
        transition:
            transform 0.32s var(--msg-ease),
            visibility 0s;
    }

    #messages-shell.mobile-thread-open .threads-panel {
        transform: translateX(-25%);
        opacity: 0.4;
        pointer-events: none;
    }

    #messages-shell.mobile-thread-open .messages-back-btn {
        display: inline-flex !important;
    }

    #messages-shell .chat-header {
        min-height: 60px;
        padding: max(8px, env(safe-area-inset-top)) 8px 8px;
    }

    #messages-shell .chat-header-avatar {
        width: 38px;
        height: 38px;
    }

    #messages-shell .message-bubble-wrap {
        max-width: 85%;
    }

    #messages-shell .chat-media-wrap,
    #messages-shell .chat-media-link {
        width: 240px;
    }

    /* 16px évite le zoom automatique d'iOS au focus */
    #messages-shell .chat-input-textarea,
    #messages-shell .chat-input-row .form-input.chat-input-textarea,
    #messages-shell .messages-search-bar input {
        font-size: 16px;
    }

    #messages-shell .messages-head {
        padding-top: 12px;
    }
}

/* Mobile : la messagerie occupe tout l'écran, quelle que soit la page
   qui l'héberge (messages.html, index SPA, profils). */
@media (max-width: 860px) {
    #messages-shell,
    body:not(.messages-screen) #messages-shell {
        position: fixed;
        inset: 0;
        z-index: 1040; /* sous la barre du bas (1050), au-dessus du reste */
        width: 100%;
        height: 100%;
        height: 100dvh;
        min-height: 0;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }

    /* L'animation d'entrée des .page utilise transform, ce qui casserait
       le position: fixed le temps de l'animation. */
    #messages.page {
        animation: none;
    }

    body:has(#messages.page.active #messages-shell) {
        overflow: hidden;
    }

    #messages-shell .messages-head {
        padding-top: max(12px, env(safe-area-inset-top));
    }

    /* Discussion ouverte : plein écran sans barre du bas ni bouton flottant */
    body:has(#messages-shell.mobile-thread-open) .xera-bottom-nav {
        transform: translateY(100%);
        opacity: 0;
        pointer-events: none;
    }

    body:has(#messages-shell) #messages-floating-back-btn {
        display: none !important;
    }

    /* La barre du site (notifications, monétisation) restait fixée au-dessus
       de la messagerie plein écran et cachait le bouton retour et le nom de
       l'interlocuteur. La messagerie a sa propre barre (maison, retour). */
    body:has(#messages.page.active #messages-shell) > nav,
    body.messages-screen > nav,
    body.messages-thread-open > nav {
        display: none !important;
    }
}

/* La barre de navigation mobile (fixe, 64px) ne doit pas masquer la liste */
@media (max-width: 768px) {
    #messages-shell .threads-list {
        padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px));
    }
}

@media (max-width: 380px) {
    #messages-shell .thread-avatar {
        width: 44px;
        height: 44px;
    }

    #messages-shell .messages-head h3 {
        font-size: 1.25rem;
    }
}

/* =========================================================
   Messagerie sécurisée : actions, réponses, médias privés
   ========================================================= */

/* ---------- Bulles : actions, états ---------- */

#messages-shell .message-bubble-wrap {
    position: relative;
    align-items: center;
    gap: 4px;
}

#messages-shell .message-bubble-wrap.outgoing {
    flex-direction: row-reverse;
}

#messages-shell .message-action-btn {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--msg-muted);
    opacity: 0;
    cursor: pointer;
    transition:
        opacity 0.15s,
        background 0.15s;
}

#messages-shell .message-bubble-wrap:hover .message-action-btn,
#messages-shell .message-bubble-wrap.is-menu-open .message-action-btn,
#messages-shell .message-action-btn:focus-visible {
    opacity: 1;
}

#messages-shell .message-action-btn:hover {
    background: var(--msg-hover);
    color: var(--msg-text);
}

/* Écrans tactiles : appui long à la place du bouton */
@media (hover: none) {
    #messages-shell .message-action-btn {
        display: none;
    }
}

#messages-shell .message-bubble-wrap.is-menu-open .message-bubble {
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--msg-accent) 55%, transparent);
}

#messages-shell .message-bubble-wrap.is-highlighted .message-bubble {
    animation: msg-highlight 1.6s var(--msg-ease);
}

@keyframes msg-highlight {
    0%,
    40% {
        box-shadow: 0 0 0 3px color-mix(in srgb, var(--msg-accent) 70%, transparent);
    }
    100% {
        box-shadow: 0 0 0 0 transparent;
    }
}

#messages-shell .message-bubble-wrap.is-deleted .message-bubble {
    background: transparent;
    color: var(--msg-muted);
    border: 1px dashed var(--msg-border);
    box-shadow: none;
}

#messages-shell .chat-body-deleted {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-style: italic;
    font-size: 0.88rem;
}

#messages-shell .message-edited {
    font-style: italic;
    margin-right: 2px;
}

#messages-shell .message-status-icon.is-read {
    color: #67e8f9;
    opacity: 1;
}

html.light-mode #messages-shell .incoming .message-status-icon.is-read {
    color: #0891b2;
}

#messages-shell .chat-link {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
    word-break: break-all;
}

/* ---------- Citation de réponse ---------- */

#messages-shell .chat-reply-quote {
    display: flex;
    flex-direction: column;
    gap: 1px;
    width: 100%;
    min-width: 0;
    margin: 2px 0 6px;
    padding: 6px 10px;
    border: 0;
    border-left: 3px solid var(--msg-accent);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.18);
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
}

#messages-shell .outgoing .chat-reply-quote {
    border-left-color: rgba(255, 255, 255, 0.85);
    background: rgba(255, 255, 255, 0.14);
}

html.light-mode #messages-shell .incoming .chat-reply-quote {
    background: rgba(15, 23, 42, 0.05);
}

#messages-shell .chat-reply-author {
    font-size: 0.74rem;
    font-weight: 700;
    opacity: 0.9;
}

#messages-shell .chat-reply-text {
    overflow: hidden;
    font-size: 0.82rem;
    opacity: 0.85;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* ---------- Médias privés ---------- */

#messages-shell .chat-media-wrap img,
#messages-shell .chat-media-wrap video {
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
    user-select: none;
}

#messages-shell .chat-media-private[data-media-kind="image"],
#messages-shell .chat-media-legacy {
    cursor: zoom-in;
}

#messages-shell .chat-media-skeleton {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 4 / 3;
    max-height: 340px;
    border-radius: 12px;
    color: var(--msg-muted);
    font-size: 1.6rem;
    background: linear-gradient(
        100deg,
        rgba(255, 255, 255, 0.04) 20%,
        rgba(255, 255, 255, 0.1) 40%,
        rgba(255, 255, 255, 0.04) 60%
    );
    background-size: 200% 100%;
    animation: msg-shimmer 1.3s linear infinite;
}

@keyframes msg-shimmer {
    to {
        background-position: -200% 0;
    }
}

#messages-shell .chat-media-video-load,
#messages-shell .chat-media-retry {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    min-height: 120px;
    padding: 16px;
    border: 0;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    font: inherit;
    font-size: 0.86rem;
    cursor: pointer;
}

#messages-shell .chat-media-retry {
    min-height: 0;
    background: rgba(0, 0, 0, 0.2);
    color: inherit;
}

#messages-shell .chat-media-play {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(6px);
}

#messages-shell .chat-media-unavailable {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 0;
    font-size: 0.84rem;
    opacity: 0.75;
}

/* ---------- Bandeau de confidentialité & historique ---------- */

#messages-shell .chat-privacy-banner {
    align-self: center;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    max-width: 440px;
    margin: 4px auto 14px;
    padding: 8px 14px;
    border: 1px solid var(--msg-border);
    border-radius: 12px;
    background: var(--msg-accent-soft);
    color: var(--msg-muted);
    font-size: 0.76rem;
    line-height: 1.4;
    text-align: center;
}

#messages-shell .chat-privacy-banner i {
    margin-top: 2px;
    color: var(--msg-accent);
}

#messages-shell .chat-older-loader {
    align-self: center;
    margin: 4px auto 12px;
    color: var(--msg-muted);
    font-size: 0.8rem;
}

/* ---------- Barre « Réponse / Modification » ---------- */

#messages-shell .chat-compose-context[hidden] {
    display: none;
}

#messages-shell .chat-compose-context-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 8px 8px 12px;
    border: 1px solid var(--msg-border);
    border-left: 3px solid var(--msg-accent);
    border-radius: 14px;
    background: var(--msg-panel);
    animation: msg-pop 0.16s var(--msg-ease);
}

#messages-shell .chat-compose-context-card > i {
    color: var(--msg-accent);
}

#messages-shell .chat-compose-context-meta {
    flex: 1;
    min-width: 0;
}

#messages-shell .chat-compose-context-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--msg-accent);
}

#messages-shell .chat-compose-context-text {
    overflow: hidden;
    font-size: 0.84rem;
    color: var(--msg-muted);
    white-space: nowrap;
    text-overflow: ellipsis;
}

#messages-shell .chat-compose-context-cancel {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--msg-muted);
    cursor: pointer;
}

#messages-shell .chat-compose-context-cancel:hover {
    background: var(--msg-hover);
    color: var(--msg-text);
}

/* ---------- En-tête & liste ---------- */

#messages-shell #chat-header-sub.is-typing {
    color: var(--msg-accent);
    font-style: italic;
}

#messages-shell .thread-muted {
    margin-right: 5px;
    font-size: 0.7rem;
    opacity: 0.7;
}

/* =========================================================
   Éléments attachés au <body> (hors #messages-shell)
   ========================================================= */

.dm-message-menu,
.dm-dialog {
    --dm-panel: #15151c;
    --dm-border: rgba(255, 255, 255, 0.08);
    --dm-text: #f4f4f5;
    --dm-muted: #8b8b96;
    --dm-hover: rgba(255, 255, 255, 0.06);
    --dm-accent: #8b5cf6;
    color: var(--dm-text);
    font-family: var(--font-body, "Inter", system-ui, sans-serif);
}

html.light-mode .dm-message-menu,
html.light-mode .dm-dialog {
    --dm-panel: #ffffff;
    --dm-border: rgba(15, 23, 42, 0.1);
    --dm-text: #18181b;
    --dm-muted: #6b6b76;
    --dm-hover: rgba(15, 23, 42, 0.05);
}

/* ---------- Menu d'actions ---------- */

.dm-message-menu {
    position: fixed;
    z-index: 9992;
    min-width: 210px;
    padding: 6px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--dm-border);
    border-radius: 14px;
    background: var(--dm-panel);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.4);
    animation: dm-pop 0.14s cubic-bezier(0.22, 1, 0.36, 1);
}

.dm-message-menu.is-sheet {
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    min-width: 0;
    padding: 10px 10px max(14px, env(safe-area-inset-bottom));
    border-radius: 20px 20px 0 0;
    animation: dm-sheet 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

.dm-message-menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 9991;
    background: rgba(0, 0, 0, 0.45);
    animation: dm-fade 0.18s ease;
}

.dm-message-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 11px 12px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
}

.dm-message-menu.is-sheet .dm-message-menu-item {
    padding: 14px;
    font-size: 1rem;
}

.dm-message-menu-item i {
    width: 18px;
    text-align: center;
    color: var(--dm-muted);
}

.dm-message-menu-item:hover,
.dm-message-menu-item:focus-visible {
    background: var(--dm-hover);
    outline: none;
}

.dm-message-menu-item.danger,
.dm-message-menu-item.danger i {
    color: #f87171;
}

/* ---------- Visionneuse de photo ---------- */

.dm-media-viewer {
    position: fixed;
    inset: 0;
    z-index: 9995;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: max(56px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
    background: rgba(5, 5, 8, 0.94);
    animation: dm-fade 0.18s ease;
}

.dm-media-viewer img {
    max-width: 100%;
    max-height: calc(100% - 40px);
    object-fit: contain;
    border-radius: 8px;
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
    user-select: none;
}

.dm-media-viewer-close {
    position: absolute;
    top: max(12px, env(safe-area-inset-top));
    right: 12px;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 1.15rem;
    cursor: pointer;
}

.dm-media-viewer-note {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.78rem;
}

/* ---------- Boîte de dialogue (signalement) ---------- */

.dm-dialog-overlay {
    position: fixed;
    inset: 0;
    z-index: 9993;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(0, 0, 0, 0.55);
    animation: dm-fade 0.18s ease;
}

.dm-dialog {
    width: 100%;
    max-width: 420px;
    max-height: 100%;
    overflow-y: auto;
    padding: 20px;
    border: 1px solid var(--dm-border);
    border-radius: 18px;
    background: var(--dm-panel);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    animation: dm-pop 0.16s cubic-bezier(0.22, 1, 0.36, 1);
}

.dm-dialog h4 {
    margin: 0 0 6px;
    font-size: 1.08rem;
}

.dm-dialog-text {
    margin: 0 0 14px;
    color: var(--dm-muted);
    font-size: 0.86rem;
    line-height: 1.45;
}

.dm-dialog-options {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin: 0 0 12px;
    padding: 0;
    border: 0;
}

.dm-dialog-options legend {
    margin-bottom: 6px;
    color: var(--dm-muted);
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.dm-dialog-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: 10px;
    font-size: 0.92rem;
    cursor: pointer;
}

.dm-dialog-option:hover {
    background: var(--dm-hover);
}

.dm-dialog-option input {
    accent-color: var(--dm-accent);
}

.dm-dialog-details {
    width: 100%;
    margin-bottom: 8px;
    padding: 10px 12px;
    border: 1px solid var(--dm-border);
    border-radius: 12px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-size: 16px;
    resize: vertical;
}

.dm-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px;
}

.dm-dialog-btn {
    padding: 10px 16px;
    border: 1px solid var(--dm-border);
    border-radius: 12px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.dm-dialog-btn:hover {
    background: var(--dm-hover);
}

.dm-dialog-btn.danger {
    border-color: transparent;
    background: #dc2626;
    color: #fff;
}

.dm-dialog-btn:disabled {
    opacity: 0.6;
    cursor: default;
}

@keyframes dm-fade {
    from {
        opacity: 0;
    }
}

@keyframes dm-pop {
    from {
        opacity: 0;
        transform: scale(0.96);
    }
}

@keyframes dm-sheet {
    from {
        transform: translateY(100%);
    }
}

@media (prefers-reduced-motion: reduce) {
    .dm-message-menu,
    .dm-message-menu-backdrop,
    .dm-media-viewer,
    .dm-dialog-overlay,
    .dm-dialog,
    #messages-shell .chat-media-skeleton,
    #messages-shell .chat-compose-context-card,
    #messages-shell .message-bubble-wrap.is-highlighted .message-bubble {
        animation: none;
    }
}