/* ═══════════════════════════════════════════════════════
   Rental Chat Assistant v2 — Frontend Styles
═══════════════════════════════════════════════════════ */

:root {
    --rca-accent:      #2563eb;
    --rca-header-bg:   #111827;
    --rca-header-text: #ffffff;
    --rca-bg:          #f8fafc;
    --rca-bubble-bot:  #ffffff;
    --rca-bubble-user: var(--rca-accent);
    --rca-text:        #1e293b;
    --rca-muted:       #94a3b8;
    --rca-border:      #e2e8f0;
    --rca-shadow:      0 20px 60px rgba(0,0,0,.18), 0 4px 16px rgba(0,0,0,.08);
    --rca-radius:      20px;
    --rca-font:        'Segoe UI', system-ui, -apple-system, sans-serif;
    --rca-transition:  .25s cubic-bezier(.4,0,.2,1);
}

/* ── Container ─────────────────────────────────────── */
#rca-chatbot-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999999;
    font-family: var(--rca-font);
    font-size: 15px;
}
#rca-chatbot-container.rca-pos-left {
    right: auto;
    left: 24px;
}
#rca-chatbot-container.rca-pos-left #rca-chat-window {
    right: auto;
    left: 0;
}

/* ── Float button ──────────────────────────────────── */
#rca-chat-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--rca-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(37,99,235,.45);
    transition: transform var(--rca-transition), box-shadow var(--rca-transition);
    position: relative;
    user-select: none;
}
#rca-chat-button:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px rgba(37,99,235,.55);
}
#rca-chat-button:active { transform: scale(.96); }

.rca-btn-icon svg {
    width: 26px;
    height: 26px;
    display: block;
}

/* pulse ring */
#rca-chat-button::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 3px solid var(--rca-accent);
    opacity: 0;
    animation: rca-pulse 2.5s ease-out infinite;
}
@keyframes rca-pulse {
    0%   { transform: scale(.85); opacity: .6; }
    70%  { transform: scale(1.2);  opacity: 0; }
    100% { opacity: 0; }
}

/* notification badge */
.rca-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    background: #ef4444;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
}

/* ── Chat window ───────────────────────────────────── */
#rca-chat-window {
    width: 370px;
    max-height: 580px;
    background: var(--rca-bg);
    border-radius: var(--rca-radius);
    position: absolute;
    bottom: 76px;
    right: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--rca-shadow);
    transform: scale(.92) translateY(12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--rca-transition), opacity var(--rca-transition);
    transform-origin: bottom right;
}
#rca-chatbot-container.rca-pos-left #rca-chat-window {
    transform-origin: bottom left;
}
#rca-chat-window.rca-open {
    transform: scale(1) translateY(0);
    opacity: 1;
    pointer-events: all;
}

/* ── Header ────────────────────────────────────────── */
.rca-header {
    background: var(--rca-header-bg);
    color: var(--rca-header-text);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.rca-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.rca-header-avatar svg {
    width: 24px;
    height: 24px;
    color: #fff;
}
.rca-header-info { flex: 1; }
.rca-header-name {
    font-weight: 700;
    font-size: 15px;
    line-height: 1.2;
}
.rca-header-status {
    font-size: 12px;
    opacity: .75;
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 2px;
}
.rca-status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #4ade80;
    display: inline-block;
    animation: rca-blink 2s ease-in-out infinite;
}
@keyframes rca-blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: .4; }
}
.rca-header-close {
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255,255,255,.7);
    padding: 4px;
    border-radius: 6px;
    display: flex;
    transition: color var(--rca-transition), background var(--rca-transition);
    flex-shrink: 0;
}
.rca-header-close:hover {
    color: #fff;
    background: rgba(255,255,255,.1);
}

/* ── Messages area ─────────────────────────────────── */
#rca-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 18px 14px 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;
}
#rca-chat-messages::-webkit-scrollbar { width: 5px; }
#rca-chat-messages::-webkit-scrollbar-track { background: transparent; }
#rca-chat-messages::-webkit-scrollbar-thumb {
    background: var(--rca-border);
    border-radius: 99px;
}

/* ── Messages ──────────────────────────────────────── */
.rca-message {
    display: flex;
    flex-direction: column;
    gap: 3px;
    max-width: 86%;
}
.rca-message.bot  { align-self: flex-start; }
.rca-message.user { align-self: flex-end; }

.rca-bubble {
    padding: 11px 14px;
    border-radius: 14px;
    line-height: 1.55;
    font-size: 14px;
    word-break: break-word;
}
.rca-message.bot .rca-bubble {
    background: var(--rca-bubble-bot);
    color: var(--rca-text);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
}
.rca-message.user .rca-bubble {
    background: var(--rca-bubble-user);
    color: #fff;
    border-bottom-right-radius: 4px;
}
.rca-time {
    font-size: 11px;
    color: var(--rca-muted);
    padding: 0 4px;
}
.rca-message.user .rca-time { text-align: right; }

/* ── Typing indicator ──────────────────────────────── */
.rca-typing {
    display: flex;
    align-items: center;
    gap: 5px;
    background: var(--rca-bubble-bot);
    padding: 11px 16px;
    border-radius: 14px;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
    width: fit-content;
}
.rca-typing span {
    width: 7px;
    height: 7px;
    background: var(--rca-muted);
    border-radius: 50%;
    animation: rca-dots .8s ease-in-out infinite;
}
.rca-typing span:nth-child(2) { animation-delay: .15s; }
.rca-typing span:nth-child(3) { animation-delay: .30s; }
@keyframes rca-dots {
    0%, 80%, 100% { transform: translateY(0); opacity: .4; }
    40%            { transform: translateY(-5px); opacity: 1; }
}

/* ── Option buttons ────────────────────────────────── */
.rca-options-wrap {
    display: flex;
    flex-direction: column;
    gap: 7px;
    align-self: stretch;
}
.rca-option {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border: 1.5px solid var(--rca-border);
    color: var(--rca-text);
    padding: 11px 13px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-family: var(--rca-font);
    text-align: left;
    transition: border-color var(--rca-transition), background var(--rca-transition), transform var(--rca-transition), box-shadow var(--rca-transition);
    width: 100%;
    font-weight: 500;
}
.rca-option:hover {
    border-color: var(--rca-accent);
    background: color-mix(in srgb, var(--rca-accent) 6%, #fff);
    box-shadow: 0 2px 10px rgba(37,99,235,.12);
    transform: translateX(3px);
}
.rca-option:active { transform: scale(.98); }
.rca-opt-icon { font-size: 18px; }
.rca-option span:nth-child(2) { flex: 1; }
.rca-opt-arrow { opacity: .4; flex-shrink: 0; }

/* ── Links inside bubbles ──────────────────────────── */
.rca-bubble a.rca-link-btn {
    display: inline-block;
    background: var(--rca-accent);
    color: #fff !important;
    padding: 9px 16px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    margin-top: 6px;
    transition: opacity var(--rca-transition);
}
.rca-bubble a.rca-link-btn:hover { opacity: .85; }
.rca-bubble a.rca-link-btn.whatsapp { background: #25D366; }

/* ── Footer ────────────────────────────────────────── */
.rca-footer {
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    border-top: 1px solid var(--rca-border);
    background: #fff;
}
.rca-back-btn {
    background: none;
    border: none;
    color: var(--rca-accent);
    cursor: pointer;
    font-size: 13px;
    font-family: var(--rca-font);
    font-weight: 600;
    padding: 0;
    transition: opacity var(--rca-transition);
}
.rca-back-btn:hover { opacity: .7; }
.rca-powered {
    font-size: 11px;
    color: var(--rca-muted);
}

/* ── Animations ────────────────────────────────────── */
.rca-animate-in {
    animation: rca-fadeup .35s ease both;
}
@keyframes rca-fadeup {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Mobile ────────────────────────────────────────── */
@media (max-width: 420px) {
    #rca-chatbot-container { bottom: 16px; right: 12px; }
    #rca-chatbot-container.rca-pos-left { left: 12px; }
    #rca-chat-window { width: calc(100vw - 24px); right: -12px; }
    #rca-chatbot-container.rca-pos-left #rca-chat-window { left: -12px; }
}