/* ============================================================
   ChatRM — Customer Chat Styles
   ============================================================ */

/* ── Variables ── */
:root {
    --chatrm-primary:       #2563eb;
    --chatrm-primary-dark:  #1d4ed8;
    --chatrm-bg:            #ffffff;
    --chatrm-surface:       #f8fafc;
    --chatrm-border:        #e2e8f0;
    --chatrm-text:          #1e293b;
    --chatrm-text-muted:    #64748b;
    --chatrm-bubble-out:    #2563eb;
    --chatrm-bubble-in:     #f1f5f9;
    --chatrm-bubble-sys:    #fef9c3;
    --chatrm-radius:        12px;
    --chatrm-shadow:        0 4px 24px rgba(0,0,0,.10);
    --chatrm-font:          -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ── Root container ── */
.chatrm-root {
    font-family: var(--chatrm-font);
    font-size: 15px;
    color: var(--chatrm-text);
    max-width: 480px;
    margin: 0 auto;
    background: var(--chatrm-bg);
    border: 1px solid var(--chatrm-border);
    border-radius: var(--chatrm-radius);
    box-shadow: var(--chatrm-shadow);
    overflow: hidden;
    position: relative;
}

/* ── Panel ── */
.chatrm-panel {
    display: flex;
    flex-direction: column;
}

/* ── Header ── */
.chatrm-header {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--chatrm-primary);
    color: #fff;
    padding: 14px 18px;
    font-weight: 600;
    font-size: 16px;
    flex-shrink: 0;
}

.chatrm-header__icon { font-size: 20px; line-height: 1; }

.chatrm-header__title { flex: 1; }

.chatrm-header__status {
    font-size: 11px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 20px;
    background: rgba(255,255,255,.20);
    text-transform: uppercase;
    letter-spacing: .04em;
}

/* ── Form body ── */
.chatrm-body--form {
    padding: 20px 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.chatrm-intro {
    margin: 0;
    color: var(--chatrm-text-muted);
    font-size: 14px;
}

.chatrm-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.chatrm-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--chatrm-text-muted);
}

.chatrm-input {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--chatrm-border);
    border-radius: 8px;
    font-size: 15px;
    font-family: var(--chatrm-font);
    color: var(--chatrm-text);
    background: var(--chatrm-bg);
    box-sizing: border-box;
    transition: border-color .15s;
    outline: none;
}

.chatrm-input:focus {
    border-color: var(--chatrm-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

/* ── Buttons ── */
.chatrm-btn {
    cursor: pointer;
    font-family: var(--chatrm-font);
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    transition: background .15s, opacity .15s;
}

.chatrm-btn--primary {
    background: var(--chatrm-primary);
    color: #fff;
    width: 100%;
}

.chatrm-btn--primary:hover  { background: var(--chatrm-primary-dark); }
.chatrm-btn--primary:active { opacity: .85; }

.chatrm-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
}

/* ── Error ── */
.chatrm-error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 13px;
}

/* ── Messages area ── */
.chatrm-messages {
    flex: 1;
    min-height: 280px;
    max-height: 420px;
    overflow-y: auto;
    padding: 16px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: var(--chatrm-surface);
    scroll-behavior: smooth;
}

/* ── Message row ── */
.chatrm-msg {
    display: flex;
    flex-direction: column;
    max-width: 78%;
}

.chatrm-msg--out { align-self: flex-end; align-items: flex-end; }
.chatrm-msg--in  { align-self: flex-start; align-items: flex-start; }
.chatrm-msg--sys { align-self: center; align-items: center; max-width: 90%; }

/* ── Bubble ── */
.chatrm-bubble {
    padding: 9px 13px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.45;
    word-break: break-word;
}

.chatrm-msg--out .chatrm-bubble {
    background: var(--chatrm-bubble-out);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.chatrm-msg--in .chatrm-bubble {
    background: var(--chatrm-bubble-in);
    color: var(--chatrm-text);
    border-bottom-left-radius: 4px;
}

.chatrm-msg--sys .chatrm-bubble {
    background: var(--chatrm-bubble-sys);
    color: #854d0e;
    font-size: 13px;
    border-radius: 10px;
    text-align: center;
}

/* ── Message meta (time + delivered) ── */
.chatrm-meta {
    font-size: 11px;
    color: var(--chatrm-text-muted);
    margin-top: 3px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.chatrm-delivered {
    color: var(--chatrm-primary);
    font-size: 12px;
}

/* ── Date divider ── */
.chatrm-date-divider {
    align-self: center;
    font-size: 11px;
    color: var(--chatrm-text-muted);
    background: var(--chatrm-border);
    padding: 2px 10px;
    border-radius: 20px;
    margin: 4px 0;
}

/* ── Reply bar ── */
.chatrm-reply-bar {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 10px 12px;
    border-top: 1px solid var(--chatrm-border);
    background: var(--chatrm-bg);
    flex-shrink: 0;
}

.chatrm-reply-input {
    flex: 1;
    border: 1.5px solid var(--chatrm-border);
    border-radius: 20px;
    padding: 9px 14px;
    font-size: 14px;
    font-family: var(--chatrm-font);
    resize: none;
    outline: none;
    max-height: 120px;
    overflow-y: auto;
    line-height: 1.4;
    transition: border-color .15s;
}

.chatrm-reply-input:focus {
    border-color: var(--chatrm-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.chatrm-btn--send {
    background: var(--chatrm-primary);
    color: #fff;
    padding: 9px 16px;
    border-radius: 20px;
    flex-shrink: 0;
    font-size: 14px;
}

.chatrm-btn--send:hover  { background: var(--chatrm-primary-dark); }

/* ── Closed notice ── */
.chatrm-closed-notice {
    text-align: center;
    padding: 10px;
    font-size: 13px;
    color: var(--chatrm-text-muted);
    background: var(--chatrm-surface);
    border-top: 1px solid var(--chatrm-border);
}

/* ── Loading ── */
.chatrm-loading {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,.75);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatrm-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--chatrm-border);
    border-top-color: var(--chatrm-primary);
    border-radius: 50%;
    animation: chatrm-spin .7s linear infinite;
}

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

/* ── Mobile ── */
@media (max-width: 520px) {
    .chatrm-root {
        border-radius: 0;
        border-left: none;
        border-right: none;
        max-width: 100%;
    }
}