/* ============================================================
   Pattern Chatbot Widget Styles
   ============================================================ */

:root {
    --pcb-primary:        #6c5ce7;
    --pcb-primary-dark:   #5a4bd1;
    --pcb-bg:             #ffffff;
    --pcb-surface:        #f8f9fa;
    --pcb-border:         #e9ecef;
    --pcb-text:           #212529;
    --pcb-text-muted:     #6c757d;
    --pcb-bot-bg:         #f1f3f5;
    --pcb-user-bg:        var(--pcb-primary);
    --pcb-user-text:      #ffffff;
    --pcb-shadow:         0 8px 32px rgba(0, 0, 0, 0.12);
    --pcb-radius:         16px;
    --pcb-panel-w:        360px;
    --pcb-panel-h:        520px;
    --pcb-z:              9999;
    --pcb-bottom:         24px;
    --pcb-side:           24px;
}

/* ── Widget container ────────────────────────────────────── */
.pcb-widget {
    position: fixed;
    z-index: var(--pcb-z);
    bottom: var(--pcb-bottom);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--pcb-text);
}

.pcb-widget.pcb-bottom-right {
    right: var(--pcb-side);
}

.pcb-widget.pcb-bottom-left {
    left: var(--pcb-side);
}

/* ── Toggle Button ───────────────────────────────────────── */
.pcb-toggle-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--pcb-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(108, 92, 231, 0.4);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    color: #fff;
}

.pcb-toggle-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.5);
}

.pcb-toggle-btn svg {
    width: 24px;
    height: 24px;
}

.pcb-unread-dot {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff6b6b;
    border: 2px solid #fff;
}

/* ── Panel ───────────────────────────────────────────────── */
.pcb-panel {
    position: absolute;
    bottom: 70px;
    width: var(--pcb-panel-w);
    height: var(--pcb-panel-h);
    background: var(--pcb-bg);
    border-radius: var(--pcb-radius);
    box-shadow: var(--pcb-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: pcb-slide-up 0.25s ease;
}

.pcb-bottom-right .pcb-panel {
    right: 0;
}

.pcb-bottom-left .pcb-panel {
    left: 0;
}

@keyframes pcb-slide-up {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Header ──────────────────────────────────────────────── */
.pcb-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--pcb-primary);
    color: #fff;
    flex-shrink: 0;
}

.pcb-header-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pcb-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pcb-avatar svg {
    width: 20px;
    height: 20px;
}

.pcb-header-title {
    font-weight: 600;
    font-size: 15px;
}

.pcb-header-status {
    font-size: 12px;
    opacity: 0.85;
}

.pcb-close-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: #fff;
    padding: 4px;
    display: flex;
    border-radius: 6px;
    transition: background 0.15s;
}

.pcb-close-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.pcb-close-btn svg {
    width: 18px;
    height: 18px;
}

/* ── Messages ────────────────────────────────────────────── */
.pcb-messages {
    flex: 1;
    overflow-y: auto;
    padding: 14px 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;
}

.pcb-messages::-webkit-scrollbar {
    width: 4px;
}

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

.pcb-messages::-webkit-scrollbar-thumb {
    background: var(--pcb-border);
    border-radius: 4px;
}

/* ── Message Bubbles ─────────────────────────────────────── */
.pcb-message {
    max-width: 82%;
    padding: 10px 13px;
    border-radius: 14px;
    word-break: break-word;
    font-size: 13.5px;
    line-height: 1.5;
}

.pcb-message.pcb-bot {
    background: var(--pcb-bot-bg);
    color: var(--pcb-text);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.pcb-message.pcb-user {
    background: var(--pcb-user-bg);
    color: var(--pcb-user-text);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.pcb-message.pcb-error {
    background: #fff3f3;
    color: #c0392b;
    border: 1px solid #ffcdd2;
    align-self: flex-start;
}

/* ── Product Cards ───────────────────────────────────────── */
.pcb-products-wrap {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-self: flex-start;
    width: 100%;
    max-width: 320px;
}

.pcb-product-card {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--pcb-bg);
    border: 1px solid var(--pcb-border);
    border-radius: 10px;
    padding: 8px;
    text-decoration: none;
    color: var(--pcb-text);
    transition: box-shadow 0.15s, border-color 0.15s;
}

.pcb-product-card:hover {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--pcb-primary);
}

.pcb-product-img {
    width: 52px;
    height: 52px;
    object-fit: cover;
    border-radius: 7px;
    flex-shrink: 0;
    background: var(--pcb-surface);
}

.pcb-product-info {
    flex: 1;
    min-width: 0;
}

.pcb-product-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--pcb-text);
}

.pcb-product-price {
    font-size: 13px;
    color: var(--pcb-primary);
    font-weight: 600;
    margin-top: 2px;
}

.pcb-product-btn {
    font-size: 11px;
    padding: 4px 9px;
    background: var(--pcb-primary);
    color: #fff;
    border-radius: 6px;
    white-space: nowrap;
    flex-shrink: 0;
    text-decoration: none;
    transition: background 0.15s;
}

.pcb-product-btn:hover {
    background: var(--pcb-primary-dark);
    color: #fff;
}

/* ── Typing Indicator ────────────────────────────────────── */
.pcb-typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 16px;
    flex-shrink: 0;
}

.pcb-typing-indicator span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--pcb-text-muted);
    animation: pcb-bounce 1.2s infinite;
}

.pcb-typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.pcb-typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes pcb-bounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
    30%           { transform: translateY(-6px); opacity: 1; }
}

/* ── Input Area ──────────────────────────────────────────── */
.pcb-input-area {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 10px 12px;
    border-top: 1px solid var(--pcb-border);
    flex-shrink: 0;
    background: var(--pcb-bg);
}

.pcb-input {
    flex: 1;
    border: 1px solid var(--pcb-border);
    border-radius: 20px;
    padding: 9px 14px;
    font-size: 13.5px;
    font-family: inherit;
    resize: none;
    outline: none;
    max-height: 100px;
    overflow-y: auto;
    transition: border-color 0.15s;
    line-height: 1.4;
    background: var(--pcb-surface);
    color: var(--pcb-text);
}

.pcb-input:focus {
    border-color: var(--pcb-primary);
    background: var(--pcb-bg);
}

.pcb-input::placeholder {
    color: var(--pcb-text-muted);
}

.pcb-send-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: var(--pcb-primary);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.15s, transform 0.1s;
}

.pcb-send-btn:disabled {
    background: var(--pcb-border);
    cursor: default;
}

.pcb-send-btn:not(:disabled):hover {
    background: var(--pcb-primary-dark);
    transform: scale(1.05);
}

.pcb-send-btn svg {
    width: 16px;
    height: 16px;
}

/* ── Footer ──────────────────────────────────────────────── */
.pcb-panel-footer {
    padding: 5px 12px 8px;
    font-size: 10.5px;
    color: var(--pcb-text-muted);
    text-align: center;
    flex-shrink: 0;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 480px) {
    .pcb-panel {
        position: fixed;
        bottom: 0;
        left: 0 !important;
        right: 0 !important;
        width: 100vw;
        height: 90vh;
        border-radius: var(--pcb-radius) var(--pcb-radius) 0 0;
    }

    .pcb-widget.pcb-bottom-right,
    .pcb-widget.pcb-bottom-left {
        right: 16px;
        left: auto;
    }
}