/* ── Chat Box (User) ──────────────────────────────────────────────────────── */
.chat-box {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-card);
    border-radius: 22px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 560px;
}

/* ── Messages area ────────────────────────────────────────────────────────── */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    scroll-behavior: smooth;
}

.chat-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: .5rem;
    color: var(--color-text-placeholder);
    font-size: .9rem;
}
.chat-empty span { font-size: 2.5rem; }

/* ── Bubbles ──────────────────────────────────────────────────────────────── */
.chat-bubble-wrap {
    display: flex;
}
.chat-bubble-wrap--mine { justify-content: flex-end; }

.chat-bubble {
    max-width: 68%;
    padding: .6rem .9rem;
    border-radius: 16px;
    font-size: .9rem;
    line-height: 1.5;
    word-break: break-word;
}

.chat-bubble--theirs {
    background: var(--color-surface-card-soft);
    border: 1px solid var(--color-border-soft);
    border-bottom-left-radius: 4px;
    color: var(--color-text-strong);
}

.chat-bubble--mine {
    background: linear-gradient(135deg, var(--brand-700), var(--brand-600));
    color: #ffffff;
    border-bottom-right-radius: 4px;
}

.chat-bubble__body  { margin-bottom: .2rem; }
.chat-bubble__time  { font-size: .72rem; opacity: .65; text-align: right; }

/* ── Input Row ────────────────────────────────────────────────────────────── */
.chat-input-row {
    display: flex;
    gap: .5rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--color-border-soft);
    background: var(--color-surface-card);
}

.chat-input {
    flex: 1;
    padding: .6rem .9rem;
    border: 1px solid var(--color-border-form);
    border-radius: 12px;
    background: var(--color-surface-input);
    color: var(--color-text-deep);
    font-size: .9rem;
    line-height: 1.5;
    resize: none;
    font-family: inherit;
    transition: border-color .2s;
}
.chat-input:focus { outline: none; border-color: var(--color-primary); }

.chat-send-btn {
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--brand-700), var(--brand-600));
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    align-self: flex-end;
    transition: filter .15s;
    flex-shrink: 0;
}
.chat-send-btn:hover:not(:disabled) { filter: brightness(1.1); }
.chat-send-btn:disabled { opacity: .45; cursor: not-allowed; }

/* ── Admin Chat Layout ────────────────────────────────────────────────────── */
.adm-chat-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 1.25rem;
    height: 600px;
}

.adm-chat-sidebar {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-soft);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.adm-chat-sidebar__title {
    padding: .85rem 1.1rem .5rem;
    font-size: .75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border-soft);
}

.adm-chat-contact {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .65rem 1rem;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    border-bottom: 1px solid var(--color-border-soft);
    transition: background .12s;
    width: 100%;
}
.adm-chat-contact:hover        { background: var(--color-surface-card-soft); }
.adm-chat-contact--active      { background: var(--color-info-bg); }
.adm-chat-contact:last-of-type { border-bottom: none; }

.adm-chat-contact__avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-700), var(--brand-600));
    color: #fff;
    font-size: .9rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.adm-chat-contact__info { flex: 1; min-width: 0; }
.adm-chat-contact__name { display: block; font-size: .85rem; font-weight: 700; color: var(--color-text-strong); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.adm-chat-contact__sub  { font-size: .72rem; color: var(--color-text-light); }

.adm-chat-contact__badge {
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--color-primary);
    color: #fff;
    font-size: .7rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.adm-chat-new {
    padding: .6rem .75rem;
    border-top: 1px solid var(--color-border-soft);
    display: flex;
    flex-direction: column;
    gap: .4rem;
    margin-top: auto;
}

.adm-chat-new-select {
    width: 100%;
    height: 2.4rem;
    padding: 0 .6rem;
    border: 1px solid var(--color-border-form);
    border-radius: 8px;
    background: var(--color-surface-input);
    font-size: .82rem;
    color: var(--color-text-medium);
    cursor: pointer;
}

.adm-chat-new-btn {
    width: 100%;
    padding: .4rem;
    border: none;
    border-radius: 8px;
    background: var(--color-primary);
    color: #fff;
    font-size: .82rem;
    font-weight: 700;
    cursor: pointer;
}

.adm-chat-window {
    background: var(--color-surface-card);
    border: 1px solid var(--color-border-soft);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.adm-chat-window__header {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .85rem 1.25rem;
    border-bottom: 1px solid var(--color-border-soft);
    font-size: .9rem;
    font-weight: 700;
    color: var(--color-text-strong);
}
.adm-chat-window__sub { color: var(--color-text-light); font-weight: 400; }

.adm-chat-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-placeholder);
    gap: .5rem;
    font-size: .9rem;
}
.adm-chat-placeholder span { font-size: 3rem; }

/* ── Contact wrap + delete btn ────────────────────────────────────────────── */
.adm-chat-contact-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.adm-chat-contact-wrap .adm-chat-contact { flex: 1; }

.adm-chat-delete-btn {
    position: absolute;
    right: .5rem;
    opacity: 0;
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 50%;
    background: var(--color-error-bg);
    color: var(--color-error-text);
    font-size: .72rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity .15s;
    flex-shrink: 0;
}
.adm-chat-contact-wrap:hover .adm-chat-delete-btn { opacity: 1; }
.adm-chat-delete-btn:hover { background: var(--color-error-text); color: #fff; }

/* ── Delete Confirmation Modal ────────────────────────────────────────────── */
.adm-delete-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(3px);
}
.adm-delete-modal {
    background: var(--color-surface-card);
    border-radius: 18px;
    padding: 1.75rem 2rem;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 24px 60px rgba(15,23,42,.2);
}
.adm-delete-modal h3 { margin: 0 0 .75rem; font-size: 1.05rem; }
.adm-delete-modal p  { margin: 0 0 1.25rem; color: var(--color-text-medium); font-size: .92rem; }
.adm-delete-modal__actions { display: flex; gap: .75rem; }
.adm-delete-confirm-btn {
    flex: 1; padding: .7rem; border: none; border-radius: 10px;
    background: var(--color-error-text); color: #fff; font-weight: 700; cursor: pointer;
}
.adm-delete-confirm-btn:hover { filter: brightness(1.1); }
.adm-delete-cancel-btn {
    flex: 1; padding: .7rem; border: 1.5px solid var(--color-border-input); border-radius: 10px;
    background: transparent; color: var(--color-text-medium); font-weight: 700; cursor: pointer;
}

.adm-chat-empty-contacts {
    padding: 1rem;
    font-size: .85rem;
    color: var(--color-text-placeholder);
    font-style: italic;
}

@media (max-width: 768px) {
    .adm-chat-layout { grid-template-columns: 1fr; height: auto; }
    .adm-chat-sidebar { height: 200px; }
    .adm-chat-window  { height: 460px; }
    .chat-box         { height: 480px; }
}