/* =========================================================
   chat widget — pastel float bubble bottom-right
   ========================================================= */

.chat-widget {
    position: fixed;
    bottom: 24px;
    right: 20px;
    z-index: 1000;
    transition: transform var(--transition-normal) var(--spring);
}

.chat-toggle {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--lavender-400), var(--lavender-500));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow:
        var(--shadow-lg),
        var(--inset-highlight),
        var(--glow-lavender);
    transition:
        transform var(--transition-fast) var(--spring),
        box-shadow var(--transition-normal) var(--smooth);
    animation: chat-bob 3.4s ease-in-out infinite;
}

@keyframes chat-bob {
    0%, 100% { transform: translateY(0) rotate(-3deg); }
    50%      { transform: translateY(-4px) rotate(3deg); }
}

.chat-toggle:hover {
    transform: scale(1.12) rotate(0deg);
    animation: none;
    box-shadow:
        var(--shadow-xl),
        var(--inset-highlight),
        0 0 0 6px rgba(108, 124, 208, 0.22);
}

.chat-toggle:active {
    transform: scale(0.96);
}

.chat-toggle i {
    color: var(--text-on-primary);
    font-size: 1.4rem;
}

.chat-container {
    position: absolute;
    bottom: 72px;
    right: 0;
    width: 420px;
    height: 560px;
    background-color: var(--bg-secondary);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), var(--inset-highlight);
    overflow: hidden;
    display: none;
    flex-direction: column;
    animation: chat-pop 0.36s var(--spring);
    transform-origin: bottom right;
}

@keyframes chat-pop {
    0%   { opacity: 0; transform: scale(0.7) translateY(15px); }
    60%  { opacity: 1; transform: scale(1.04) translateY(-3px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.chat-widget.expanded .chat-container {
    display: flex;
}

.chat-widget.expanded .chat-toggle {
    animation: none;
}

/* ── Unread badge on the toggle bubble ───────────────────── */
.chat-unread {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: var(--radius-full);
    background: var(--peach-500);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 20px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(255, 124, 102, 0.45);
    border: 2px solid #fff;
    box-sizing: content-box;
    pointer-events: none;
    animation: chat-badge-pop 0.3s var(--spring);
}

@keyframes chat-badge-pop {
    0%   { transform: scale(0); }
    100% { transform: scale(1); }
}

.chat-toggle {
    position: relative;
}

/* ── Header ───────────────────────────────────────────── */
.chat-header {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    background: linear-gradient(135deg, var(--lavender-400), var(--lavender-500));
    color: var(--text-on-primary);
    border-bottom: 1.5px solid var(--border-light);
}

.chat-header-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.chat-header-title i {
    font-size: 0.95rem;
    opacity: 0.95;
}

.chat-header-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.chat-header-actions button {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    border: none;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition:
        background var(--transition-fast) var(--smooth),
        transform var(--transition-fast) var(--spring);
}

.chat-header-actions button:hover {
    background: rgba(255, 255, 255, 0.32);
    transform: scale(1.08);
}

.chat-header-actions button i {
    font-size: 0.8rem;
}

.chat-close:hover {
    transform: rotate(90deg) scale(1.08);
}

/* ── Messages list ────────────────────────────────────── */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-primary);
    scrollbar-width: thin;
    scrollbar-color: var(--lavender-300) transparent;
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--lavender-300);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-empty {
    margin: auto;
    color: var(--text-tertiary);
    font-size: 0.85rem;
    font-style: italic;
    text-align: center;
    padding: 24px 12px;
}

/* ── Message bubble ───────────────────────────────────── */
.chat-message {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    animation: chat-msg-in 0.24s var(--spring);
}

@keyframes chat-msg-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.chat-message.own {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
}

.chat-avatar .avatar-container,
.chat-avatar .avatar-image {
    width: 100%;
    height: 100%;
}

.chat-bubble {
    max-width: 75%;
    background: var(--bg-secondary);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-lg);
    border-bottom-left-radius: 6px;
    padding: 6px 12px 8px;
    box-shadow: var(--shadow-sm);
    word-wrap: break-word;
    overflow-wrap: anywhere;
}

.chat-message.own .chat-bubble {
    background: linear-gradient(135deg, var(--lavender-400), var(--lavender-500));
    color: var(--text-on-primary);
    border-color: transparent;
    border-bottom-left-radius: var(--radius-lg);
    border-bottom-right-radius: 6px;
}

.chat-meta {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 2px;
}

.chat-name {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--lavender-600);
}

.chat-message.own .chat-name {
    color: rgba(255, 255, 255, 0.92);
}

.chat-time {
    font-size: 0.68rem;
    color: var(--text-tertiary);
}

.chat-message.own .chat-time {
    color: rgba(255, 255, 255, 0.75);
}

.chat-body {
    font-size: 0.9rem;
    line-height: 1.35;
    color: var(--text-primary);
    white-space: pre-wrap;
}

.chat-message.own .chat-body {
    color: var(--text-on-primary);
}

/* ── Input ─────────────────────────────────────────────── */
.chat-input {
    flex-shrink: 0;
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 10px;
    background: var(--bg-secondary);
    border-top: 1.5px solid var(--border-light);
}

.chat-input textarea {
    flex: 1;
    resize: none;
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    font: inherit;
    font-size: 16px; /* prevent iOS zoom on focus */
    line-height: 1.35;
    color: var(--text-primary);
    background: var(--bg-primary);
    max-height: 96px;
    transition:
        border-color var(--transition-fast) var(--smooth),
        box-shadow var(--transition-fast) var(--smooth);
}

.chat-input textarea:focus {
    outline: none;
    border-color: var(--lavender-400);
    box-shadow: 0 0 0 3px rgba(108, 124, 208, 0.18);
}

.chat-send {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--lavender-400), var(--lavender-500));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition:
        transform var(--transition-fast) var(--spring),
        box-shadow var(--transition-fast) var(--smooth),
        opacity var(--transition-fast) var(--smooth);
}

.chat-send:hover:not(:disabled) {
    transform: scale(1.08);
    box-shadow: var(--shadow-lg);
}

.chat-send:active:not(:disabled) {
    transform: scale(0.94);
}

.chat-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.chat-send i {
    font-size: 0.85rem;
    transform: translateX(1px);
}

/* ── Login hint (guest view) ──────────────────────────── */
.chat-login-hint {
    flex-shrink: 0;
    padding: 14px;
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1.5px solid var(--border-light);
}

.chat-login-hint a {
    color: var(--lavender-600);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.88rem;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    background: var(--lavender-100);
    display: inline-block;
    transition:
        background var(--transition-fast) var(--smooth),
        transform var(--transition-fast) var(--spring);
}

.chat-login-hint a:hover {
    background: var(--lavender-200);
    transform: translateY(-1px);
}

/* ── Toast (errors) ───────────────────────────────────── */
.chat-toast {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 64px;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    background: var(--peach-500);
    color: #fff;
    font-size: 0.82rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    z-index: 5;
    animation: chat-toast-in 0.24s var(--spring);
}

@keyframes chat-toast-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── GIF button ───────────────────────────────────────── */
.chat-gif-btn {
    flex-shrink: 0;
    height: 36px;
    padding: 0 10px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--lavender-100, #ede9fe);
    color: var(--lavender-600, #7c3aed);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background var(--transition-fast) var(--smooth);
}
.chat-gif-btn:hover { background: var(--lavender-200, #ddd6fe); }

/* ── GIF picker panel ─────────────────────────────────── */
.chat-gif-picker {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    max-height: 260px;
    overflow: hidden;
    border-top: 1px solid var(--lavender-100, #ede9fe);
    background: var(--cream-50, #fffbf5);
}

.chat-gif-search-wrap {
    padding: 8px 10px 6px;
    border-bottom: 1px solid var(--lavender-100, #ede9fe);
}

.chat-gif-search {
    width: 100%;
    box-sizing: border-box;
    padding: 6px 10px;
    border: 1px solid var(--lavender-200, #ddd6fe);
    border-radius: var(--radius-full);
    background: #fff;
    font-size: 0.85rem;
    color: var(--text-primary, #333);
    outline: none;
}
.chat-gif-search:focus { border-color: var(--lavender-400, #a78bfa); }

.chat-gif-grid {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px;
    align-content: flex-start;
}

.chat-gif-item {
    width: calc(33.33% - 3px);
    aspect-ratio: 4/3;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: opacity var(--transition-fast) var(--smooth), transform var(--transition-fast) var(--spring);
}
.chat-gif-item:hover { opacity: 0.85; transform: scale(1.03); }

.chat-gif-status {
    width: 100%;
    text-align: center;
    padding: 20px;
    color: var(--lavender-400, #a78bfa);
    font-size: 0.82rem;
    font-style: italic;
}

.chat-gif-attribution {
    padding: 4px 10px;
    font-size: 0.72rem;
    color: var(--text-muted, #aaa);
    text-align: right;
    border-top: 1px solid var(--lavender-100, #ede9fe);
}

/* ── GIF in message bubble ────────────────────────────── */
.chat-gif {
    display: block;
    max-width: 220px;
    max-height: 180px;
    border-radius: var(--radius-md);
    object-fit: contain;
}

/* ── @mentions ────────────────────────────────────────── */
.chat-mention {
    color: var(--lavender-600, #7c3aed);
    font-weight: 600;
    background: var(--lavender-100, #ede9fe);
    border-radius: 3px;
    padding: 0 3px;
}

/* ── Loading state ────────────────────────────────────── */
.chat-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 24px 16px;
    color: var(--lavender-400, #a78bca);
    font-size: 0.82rem;
    font-style: italic;
}

.chat-loading::before {
    content: '';
    width: 14px;
    height: 14px;
    border: 2px solid var(--lavender-200, #ddd6fe);
    border-top-color: var(--lavender-500, #8b5cf6);
    border-radius: 50%;
    animation: chat-spin 0.7s linear infinite;
    flex-shrink: 0;
}

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