/* =========================================================
   LUMESYS — PHOTO DE PROFIL (overlay, progression, toast)
   Feuille autonome, alignée sur la palette de messagerie.css.
   À charger après le CSS de la page.
========================================================= */

:root {
    --avatar-deep-sky: #277da1;
    --avatar-sky: #8ecae6;
    --avatar-green: #74c69d;
    --avatar-error: #b42318;
    --avatar-success: #1d6b45;
}

/* Le conteneur de l'avatar devient le repère de positionnement */
[data-avatar-upload="ready"] {
    position: relative;
    overflow: visible; /* l'icône "+" dépasse volontairement du cercle */
}

.avatar-upload {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 3;
}

/* ---- Bouton "+" ---- */
.avatar-upload-btn {
    --avatar-progress: 0%;
    position: absolute;
    right: -4px;
    bottom: -4px;
    width: 22px;
    height: 22px;
    padding: 0;
    border: 2px solid #ffffff;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--avatar-deep-sky), var(--avatar-sky));
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    pointer-events: auto;
    box-shadow: 0 2px 8px rgba(39, 125, 161, 0.35);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.avatar-upload-plus {
    display: block;
    transform: translateY(-0.5px);
    transition: opacity 0.18s ease, transform 0.18s ease;
}

.avatar-upload-btn:hover,
.avatar-upload-btn:focus-visible {
    transform: scale(1.12);
    box-shadow: 0 4px 14px rgba(39, 125, 161, 0.5);
    outline: none;
}

.avatar-upload-btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(142, 202, 230, 0.65);
}

.avatar-upload-btn:active {
    transform: scale(0.96);
}

.avatar-upload-btn.drag-over {
    background: linear-gradient(135deg, var(--avatar-green), var(--avatar-sky));
    transform: scale(1.2);
}

/* ---- Anneau de progression ---- */
.avatar-upload-ring {
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    opacity: 0;
    background: conic-gradient(
        #ffffff var(--avatar-progress),
        rgba(255, 255, 255, 0.25) 0
    );
    transition: opacity 0.2s ease;
}

.avatar-upload-progress {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    font-weight: 700;
    letter-spacing: -0.02em;
    opacity: 0;
    transition: opacity 0.2s ease;
}

/* ---- État pendant l'envoi ---- */
.avatar-upload-btn.uploading {
    cursor: progress;
    animation: avatar-pulse 1.4s ease-in-out infinite;
}

.avatar-upload-btn.uploading .avatar-upload-plus {
    opacity: 0;
    transform: scale(0.4);
}

.avatar-upload-btn.uploading .avatar-upload-ring,
.avatar-upload-btn.uploading .avatar-upload-progress {
    opacity: 1;
}

.avatar-upload-btn.uploading:hover {
    transform: none;
}

@keyframes avatar-pulse {
    0%, 100% { box-shadow: 0 2px 8px rgba(39, 125, 161, 0.35); }
    50%      { box-shadow: 0 2px 18px rgba(39, 125, 161, 0.65); }
}

/* Voile sombre au survol de l'avatar (indice de cliquabilité) */
[data-avatar-upload="ready"]::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: rgba(36, 55, 70, 0);
    transition: background 0.2s ease;
    pointer-events: none;
    z-index: 2;
}

[data-avatar-upload="ready"]:hover::after,
[data-avatar-upload="ready"]:focus-within::after {
    background: rgba(36, 55, 70, 0.22);
}

/* Avatar gelé : utilisateur déconnecté */
[data-avatar-upload="ready"][data-avatar-locked="true"] .avatar-upload-btn {
    display: none;
}

/* ---- Toast ---- */
.avatar-toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    z-index: 1200;
    max-width: min(92vw, 420px);
    padding: 11px 18px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.95);
    color: #243746;
    font-family: "Inter", "Segoe UI", Arial, sans-serif;
    font-size: 13px;
    line-height: 1.4;
    text-align: center;
    box-shadow: 0 12px 30px rgba(49, 91, 116, 0.22);
    backdrop-filter: blur(8px);
    animation: avatar-toast-in 0.22s ease-out;
}

.avatar-toast[hidden] {
    display: none;
}

.avatar-toast.success {
    color: var(--avatar-success);
    border-color: rgba(116, 198, 157, 0.6);
    background: rgba(240, 252, 246, 0.97);
}

.avatar-toast.error {
    color: var(--avatar-error);
    border-color: rgba(180, 35, 24, 0.35);
    background: rgba(255, 245, 244, 0.97);
}

@keyframes avatar-toast-in {
    from { opacity: 0; transform: translate(-50%, 10px); }
    to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ---- Accessibilité / mobile ---- */
@media (max-width: 850px) {
    .avatar-upload-btn {
        width: 20px;
        height: 20px;
        font-size: 13px;
    }
    .avatar-toast {
        bottom: 14px;
        font-size: 12.5px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .avatar-upload-btn,
    .avatar-upload-plus,
    .avatar-upload-ring,
    .avatar-upload-progress,
    [data-avatar-upload="ready"]::after {
        transition: none;
    }
    .avatar-upload-btn.uploading {
        animation: none;
    }
    .avatar-toast {
        animation: none;
    }
}