/* Floating Action Button (FAB) */
.chat-widget-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
    border: none;
    outline: none;
}

.chat-widget-fab:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

.chat-widget-fab::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--color-primary);
    animation: chat-fab-pulse 2s infinite;
    opacity: 0;
    pointer-events: none;
}

@keyframes chat-fab-pulse {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

.chat-widget-fab svg {
    width: 24px;
    height: 24px;
}

/* Chat Window Container */
.chat-window {
    position: fixed;
    bottom: 6.5rem;
    right: 2rem;
    width: 380px;
    height: 520px;
    max-height: calc(85vh - 100px);
    max-width: calc(100vw - 4rem);
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(20px) scale(0.95);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s cubic-bezier(0.165, 0.84, 0.44, 1), opacity 0.3s ease, visibility 0.3s;
}

.chat-window.open {
    transform: translateY(0) scale(1);
    opacity: 1;
    visibility: visible;
}

/* Chat Header */
.chat-header {
    background: var(--gradient-primary);
    color: #ffffff;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-header-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-avatar {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.chat-info-title {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.2;
}

.chat-info-status {
    font-size: 0.75rem;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.chat-status-dot {
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px #10b981;
    animation: status-pulse 1.5s infinite;
}

@keyframes status-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

.chat-close-btn {
    background: transparent;
    border: none;
    color: #ffffff;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
}

.chat-close-btn:hover {
    opacity: 1;
}

.chat-close-btn svg {
    width: 20px;
    height: 20px;
}

/* Chat Messages Area */
.chat-body {
    flex-grow: 1;
    padding: 1.25rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: rgba(248, 250, 252, 0.4);
}

/* Scrollbar styling */
.chat-body::-webkit-scrollbar {
    width: 6px;
}
.chat-body::-webkit-scrollbar-track {
    background: transparent;
}
.chat-body::-webkit-scrollbar-thumb {
    background: rgba(100, 116, 139, 0.2);
    border-radius: 3px;
}
.chat-body::-webkit-scrollbar-thumb:hover {
    background: rgba(100, 116, 139, 0.4);
}

/* Message Bubbles */
.chat-message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    animation: bubble-fade-in 0.3s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
    opacity: 0;
    transform: translateY(8px);
}

@keyframes bubble-fade-in {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message.bot {
    align-self: flex-start;
}

.chat-message.user {
    align-self: flex-end;
}

.chat-bubble {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    line-height: 1.45;
}

.chat-message.bot .chat-bubble {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 14px 14px 14px 4px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.chat-message.user .chat-bubble {
    background: var(--color-primary);
    color: #ffffff;
    border-radius: 14px 14px 4px 14px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
}

.chat-timestamp {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    align-self: flex-start;
    padding: 0 4px;
}

.chat-message.user .chat-timestamp {
    align-self: flex-end;
}

/* Quick Replies styling */
.chat-quick-replies {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.25rem;
    animation: bubble-fade-in 0.4s ease 0.2s forwards;
    opacity: 0;
}

.chat-reply-btn {
    background: var(--bg-secondary);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-primary);
    padding: 0.5rem 0.9rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    font-family: var(--font-body);
}

.chat-reply-btn:hover {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(16, 185, 129, 0.1);
}

/* Chat Input Footer */
.chat-input-area {
    padding: 0.85rem 1.25rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.chat-text-input {
    flex-grow: 1;
    border: 1px solid var(--border-light);
    padding: 0.6rem 0.9rem;
    border-radius: 20px;
    font-size: 0.875rem;
    outline: none;
    transition: border-color var(--transition-fast);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
}

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

.chat-send-btn {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: #ffffff;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.chat-send-btn:hover {
    background: var(--color-secondary);
    transform: scale(1.05);
}

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

/* Typing Indicator Animation */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing-bounce 1.4s infinite ease-in-out both;
    opacity: 0.6;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing-bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Lead Form CSS inside Chat */
.chat-lead-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    margin-top: 0.25rem;
}

.chat-form-input {
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-light);
    font-size: 0.8rem;
    outline: none;
    font-family: var(--font-body);
}

.chat-form-input:focus {
    border-color: var(--color-primary);
}

.chat-form-submit {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.5rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-body);
    transition: transform var(--transition-fast);
}

.chat-form-submit:hover {
    transform: translateY(-1px);
}

/* Responsive adjustment */
@media (max-width: 480px) {
    .chat-window {
        bottom: 0;
        right: 0;
        width: 100%;
        height: 100%;
        max-height: 100%;
        max-width: 100%;
        border-radius: 0;
    }
    .chat-header {
        border-radius: 0;
    }
}