/* ===== Chat ===== */

.chat-toggle {
    position: fixed;
    top: calc((var(--hdr-h) - 14px) / 2);
    right: max(14px, env(safe-area-inset-right));
    z-index: 56;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    box-sizing: border-box;
    min-width: 100px;
    height: 32px;
    margin: 0 12px 0 0;
    padding: 0 14px;
    background: transparent;
    border: 1px solid var(--fg-4);
    border-radius: 2px;
    color: var(--fg-2);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition:
        opacity var(--t-med),
        color var(--t-fast),
        border-color var(--t-fast),
        background var(--t-fast),
        box-shadow var(--t-fast);
}

/* Кнопка всегда в одном месте (строчка приложения справа) — только смена chat/close, без переезда top/right. */

.chat-toggle-stack {
    display: grid;
    place-items: center;
}

.chat-toggle-pane {
    grid-area: 1 / 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
        opacity 180ms cubic-bezier(.2, .6, .2, 1),
        visibility 0s linear 180ms;
}

.chat-toggle:not(.is-open) .chat-toggle-pane--idle {
    opacity: 1;
    visibility: visible;
    transition:
        opacity 180ms cubic-bezier(.2, .6, .2, 1),
        visibility 0s linear 0s;
}

.chat-toggle.is-open .chat-toggle-pane--open {
    opacity: 1;
    visibility: visible;
    transition:
        opacity 180ms cubic-bezier(.2, .6, .2, 1),
        visibility 0s linear 0s;
}

.app[data-mode="room"] .chat-toggle {
    opacity: 1;
    pointer-events: auto;
}

.chat-toggle:hover {
    color: var(--fg);
    border-color: var(--fg-2);
}

.chat-toggle.is-open {
    color: var(--fg);
    border-color: rgba(230, 230, 232, 0.32);
    background: rgba(16, 16, 18, 0.88);
}

.chat-toggle-icon-svg {
    width: 14px;
    height: 14px;
}

.chat-toggle-icon-svg path {
    stroke: currentColor;
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    vector-effect: non-scaling-stroke;
}

.chat-toggle-icon-svg circle.chat-toggle-dot {
    fill: currentColor;
    stroke: none;
}

.chat-toggle-label {
    font-size: 11px;
    letter-spacing: var(--tracking-wide);
    text-transform: lowercase;
    white-space: nowrap;
    line-height: 1;
}

.chat-toggle-badge {
    pointer-events: none;
    display: none;
    position: absolute;
    top: -3px;
    right: -3px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--signal);
    box-shadow: 0 0 6px rgba(200, 200, 204, 0.55);
}

.chat-toggle.has-unread .chat-toggle-badge {
    display: block;
}

.chat-panel {
    position: fixed;
    top: 0;
    bottom: 0;
    width: var(--chat-panel-w);
    max-width: calc(100vw - 32px);
    right: calc(-1 * var(--chat-panel-w) - 44px);
    z-index: 46;
    box-sizing: border-box;
    padding-top: max(var(--chat-v-inset), env(safe-area-inset-top));
    padding-bottom: max(var(--chat-v-inset), env(safe-area-inset-bottom));
    opacity: 0;
    margin: 8px 0;
    visibility: hidden;
    pointer-events: none;
    transform: none;
    transition:
        opacity var(--t-med),
        right 380ms cubic-bezier(0.32, 0.72, 0, 1),
        visibility 0s linear var(--t-med);
}

.chat-panel.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    right: max(16px, env(safe-area-inset-right));
    transition:
        opacity var(--t-med),
        right 380ms cubic-bezier(0.32, 0.72, 0, 1),
        visibility 0s linear 0s;
}

.chat-panel-inner {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    background: rgba(16, 16, 18, 0.92);
    border: 1px solid var(--fg-4);
    border-radius: 4px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 14px;
    padding: 0 14px;
    padding-right: calc(14px + 110px);
    border-bottom: 1px solid var(--fg-4);
    color: var(--fg-2);
    font-size: 11px;
    letter-spacing: var(--tracking-wide);
    text-transform: lowercase;
    height: 50px;
    box-sizing: border-box;
    flex-shrink: 0;
}

.chat-title {
    line-height: 1;
}

.chat-messages {
    position: relative;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-messages::-webkit-scrollbar {
    width: 4px;
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--fg-3);
    border-radius: 2px;
    border-right: 2px solid transparent;
    background-clip: padding-box;
}

.chat-messages::-webkit-scrollbar-track,
.chat-messages::-webkit-scrollbar-button,
.chat-messages::-webkit-scrollbar-corner {
    background: transparent;
    display: none;
    height: 0;
}

@supports (-moz-appearance: none) {
    .chat-messages {
        scrollbar-width: thin;
        scrollbar-color: var(--fg-3) transparent;
    }
}

.chat-jump-bottom {
    position: absolute;
    z-index: 3;
    left: 50%;
    right: auto;
    bottom: 80px;
    width: 36px;
    height: 36px;
    margin: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--fg-4);
    border-radius: 2px;
    background: rgba(22, 22, 26, 0.88);
    color: rgba(230, 230, 232, 0.92);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 12px);
    pointer-events: none;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    transition:
        opacity var(--t-med),
        transform var(--t-med),
        visibility 0s linear var(--t-med),
        border-color var(--t-fast),
        color var(--t-fast),
        background var(--t-fast);
}

.chat-jump-bottom.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
    pointer-events: auto;
    transition:
        opacity var(--t-med),
        transform var(--t-med),
        visibility 0s linear 0s,
        border-color var(--t-fast),
        color var(--t-fast),
        background var(--t-fast);
}

.chat-jump-bottom:hover {
    border-color: var(--fg-2);
    color: var(--fg);
}

.chat-jump-bottom svg {
    width: 15px;
    height: 15px;
    stroke: currentColor;
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

.chat-empty {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    color: var(--fg-4);
    font-size: 11px;
    letter-spacing: var(--tracking-wide);
    text-transform: lowercase;
    transition: opacity var(--t-fast);
}

.chat-panel.has-messages .chat-empty {
    opacity: 0;
}

.chat-msg {
    position: relative;
    display: flex;
    flex-direction: column;
    align-self: flex-start;
    max-width: 88%;
    padding: 6px 10px 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    animation: chat-msg-in 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* Бейдж лайков выезжает за нижний край бабла — даём дополнительный
   нижний отступ, иначе цепляется за соседнее сообщение. */
.chat-msg.has-likes {
    margin-bottom: 8px;
}

.chat-msg.chat-msg-self {
    align-self: flex-end;
    background: rgba(230, 230, 232, 0.07);
    border-color: rgba(230, 230, 232, 0.13);
}

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

    to {
        opacity: 1;
        transform: none;
    }
}

.chat-msg-head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 4px;
    color: var(--fg-3);
    font-size: 10px;
    letter-spacing: var(--tracking-wide);
    text-transform: lowercase;
}

.chat-msg-nick {
    color: var(--fg-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 160px;
}

.chat-msg-self .chat-msg-nick {
    color: var(--fg);
}

.chat-msg-time {
    font-variant-numeric: tabular-nums;
    flex-shrink: 0;
}

.chat-msg-body {
    font-size: 13px;
    line-height: 1.45;
    color: var(--fg);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.chat-msg-link {
    color: var(--fg);
    text-decoration: underline;
    text-decoration-color: var(--fg-3);
    text-underline-offset: 2px;
    transition: text-decoration-color var(--t-fast);
}

.chat-msg-link:hover {
    text-decoration-color: var(--fg);
}

/* ===== Likes ===== */

/* Маленький чип «♥ N» прилипает к нижнему краю бабла. По умолчанию приглушён,
   собственный лайк подсвечивается ярче. user-select:none — иначе цифра
   попадает в системное выделение слова при дабл-клике по сообщению. */
.chat-msg-likes {
    position: absolute;
    bottom: -10px;
    right: 8px;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    height: 18px;
    padding: 0 7px 0 5px;
    background: rgba(20, 20, 22, 0.96);
    border: 1px solid var(--fg-4);
    border-radius: 999px;
    color: var(--fg-2);
    font-size: 10px;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    cursor: pointer;
    z-index: 1;
    user-select: none;
    -webkit-user-select: none;
    transform-origin: 50% 50%;
    animation: like-badge-in 280ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
    transition:
        color var(--t-fast),
        border-color var(--t-fast),
        background var(--t-fast);
}

@keyframes like-badge-in {
    0%   { opacity: 0; transform: scale(0.4) translateY(2px); }
    60%  { opacity: 1; transform: scale(1.12) translateY(0); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* Пульс на изменение счётчика — короткая «дрожь» без overshoot, чтобы не
   перебивала like-badge-in при быстрой серии лайков. */
.chat-msg-likes.is-pulsing {
    animation: like-badge-pulse 320ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes like-badge-pulse {
    0%   { transform: scale(1); }
    35%  { transform: scale(1.18); }
    100% { transform: scale(1); }
}

/* Self-msg выровнен вправо — переносим бейдж на левую сторону, чтобы
   он не утыкался в правый край панели. */
.chat-msg-self .chat-msg-likes {
    right: auto;
    left: 8px;
}

.chat-msg-likes:hover {
    color: var(--fg);
    border-color: var(--fg-2);
}

.chat-msg-likes-heart {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 11px;
    height: 11px;
    color: var(--fg-3);
    transition: color var(--t-fast);
}

.chat-msg-likes-heart svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
    display: block;
}

.chat-msg-likes:hover .chat-msg-likes-heart {
    color: var(--fg);
}

.chat-msg-likes.is-mine {
    color: var(--fg);
    border-color: rgba(226, 107, 122, 0.45);
    background: rgba(50, 22, 28, 0.96);
}

.chat-msg-likes.is-mine .chat-msg-likes-heart {
    color: #e26b7a;
}

/* Всплывашка по long-press: одиночное сердце над пальцем/курсором. */
.chat-like-popup {
    position: fixed;
    z-index: 80;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    background: rgba(22, 22, 26, 0.96);
    border: 1px solid var(--fg-4);
    border-radius: 50%;
    color: #e26b7a;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    user-select: none;
    -webkit-user-select: none;
    opacity: 0;
    transform-origin: 50% 90%;
    transform: translateY(8px) scale(0.5);
    transition:
        opacity 180ms cubic-bezier(0.22, 1, 0.36, 1),
        transform 220ms cubic-bezier(0.34, 1.56, 0.64, 1),
        border-color var(--t-fast),
        background var(--t-fast);
}

.chat-like-popup.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.chat-like-popup:hover {
    border-color: rgba(226, 107, 122, 0.55);
    background: rgba(34, 22, 26, 0.96);
}

.chat-like-popup svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
    display: block;
    /* лёгкий «вдох» сердца, чтобы всплывашка не казалась статичной */
    animation: like-popup-beat 1200ms ease-in-out infinite;
}

@keyframes like-popup-beat {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.12); }
}