/* =====================================================
   Uptown Hotel AI Chatbot Styles
   Following the existing design system
   ===================================================== */

/* Chatbot Toggle Button */
.chatbot-toggle {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-hero);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-elegant);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1500;
    transition: var(--transition-smooth);
}

.chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 35px -8px rgba(17, 18, 13, 0.35);
}

.chatbot-toggle:active {
    transform: scale(0.95);
}

.chatbot-toggle-icon {
    width: 28px;
    height: 28px;
    transition: var(--transition-smooth);
}

.chatbot-toggle.active .chatbot-toggle-icon {
    transform: rotate(180deg);
}

/* Notification Badge */
.chatbot-notification {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    background: var(--color-danger);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
    animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Chatbot Container */
.chatbot-container {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 380px;
    max-width: calc(100vw - 48px);
    height: 520px;
    max-height: calc(100vh - 140px);
    background: var(--color-surface);
    border-radius: var(--radius-2xl);
    box-shadow: 0 20px 60px -15px rgba(17, 18, 13, 0.3);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 1499;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: var(--transition-smooth);
}

.chatbot-container.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Chatbot Header */
.chatbot-header {
    background: var(--gradient-hero);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.chatbot-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 251, 244, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chatbot-avatar-icon {
    width: 26px;
    height: 26px;
}

.chatbot-header-info {
    flex: 1;
}

.chatbot-header-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-inverse);
    margin: 0 0 2px 0;
}

.chatbot-header-status {
    font-size: 0.75rem;
    color: rgba(255, 251, 244, 0.8);
    display: flex;
    align-items: center;
    gap: 6px;
}

.chatbot-status-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.chatbot-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 251, 244, 0.15);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.chatbot-close:hover {
    background: rgba(255, 251, 244, 0.25);
}

.chatbot-close-icon {
    width: 18px;
    height: 18px;
}

/* Chatbot Messages Area */
.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background: var(--color-background);
}

.chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

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

.chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--color-light);
    border-radius: 3px;
}

.chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: var(--color-medium);
}

/* Message Styles */
.chatbot-message {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 85%;
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.chatbot-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chatbot-message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.chatbot-message.bot .chatbot-message-avatar {
    background: var(--gradient-hero);
}

.chatbot-message.user .chatbot-message-avatar {
    background: var(--color-secondary);
}

.chatbot-message-avatar-icon {
    width: 18px;
    height: 18px;
}

.chatbot-message-content {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    line-height: 1.5;
}

.chatbot-message.bot .chatbot-message-content {
    background: var(--color-surface);
    color: var(--text-primary);
    border-bottom-left-radius: var(--radius-sm);
    box-shadow: var(--shadow-card);
}

.chatbot-message.user .chatbot-message-content {
    background: var(--gradient-hero);
    color: var(--text-inverse);
    border-bottom-right-radius: var(--radius-sm);
}

/* Message Timestamp */
.chatbot-message-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

.chatbot-message.user .chatbot-message-time {
    text-align: right;
}

/* Typing Indicator */
.chatbot-typing {
    display: flex;
    gap: var(--spacing-sm);
    align-self: flex-start;
    max-width: 85%;
}

.chatbot-typing-content {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border-bottom-left-radius: var(--radius-sm);
    box-shadow: var(--shadow-card);
    display: flex;
    gap: 4px;
    align-items: center;
}

.chatbot-typing-dot {
    width: 8px;
    height: 8px;
    background: var(--color-medium);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out;
}

.chatbot-typing-dot:nth-child(1) { animation-delay: -0.32s; }
.chatbot-typing-dot:nth-child(2) { animation-delay: -0.16s; }
.chatbot-typing-dot:nth-child(3) { animation-delay: 0s; }

@keyframes typingBounce {
    0%, 80%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    40% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* Quick Replies */
.chatbot-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.chatbot-quick-reply {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-light);
    border-radius: var(--radius-2xl);
    font-size: 0.8rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.chatbot-quick-reply:hover {
    background: var(--color-secondary);
    border-color: var(--color-medium);
    transform: translateY(-1px);
}

/* Chatbot Input Area */
.chatbot-input-area {
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-top: 1px solid var(--color-light);
}

.chatbot-input-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
    background: var(--color-background);
    border: 1.5px solid var(--color-light);
    border-radius: 24px;
    padding: 6px 6px 6px 18px;
    transition: var(--transition-smooth);
}

.chatbot-input-wrapper:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(86, 84, 73, 0.08);
}

.chatbot-input {
    flex: 1;
    padding: 8px 0;
    border: none !important;
    outline: none !important;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    line-height: 1.4;
    min-width: 0;
    box-shadow: none !important;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.chatbot-input:focus,
.chatbot-input:focus-visible,
.chatbot-input:active {
    outline: none !important;
    border: none !important;
    box-shadow: none !important;
}

.chatbot-input::placeholder {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.chatbot-send {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--gradient-hero);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.chatbot-send:hover {
    transform: scale(1.08);
    box-shadow: var(--shadow-button);
}

.chatbot-send:active {
    transform: scale(0.95);
}

.chatbot-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.chatbot-send-icon {
    width: 16px;
    height: 16px;
}

/* Chatbot Footer */
.chatbot-footer {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-surface);
    text-align: center;
    border-top: 1px solid var(--color-light);
}

.chatbot-footer-text {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Welcome Message Card */
.chatbot-welcome-card {
    background: var(--gradient-luxury);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.chatbot-welcome-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.chatbot-welcome-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Room Suggestion Card */
.chatbot-room-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: var(--spacing-sm);
    box-shadow: var(--shadow-card);
}

.chatbot-room-image {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

.chatbot-room-info {
    padding: var(--spacing-sm) var(--spacing-md);
}

.chatbot-room-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.chatbot-room-price {
    font-size: 0.85rem;
    color: var(--color-medium);
}

.chatbot-room-price strong {
    color: var(--text-primary);
}

.chatbot-room-btn {
    display: block;
    width: 100%;
    padding: var(--spacing-sm);
    background: var(--gradient-hero);
    color: var(--text-inverse);
    text-align: center;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.chatbot-room-btn:hover {
    opacity: 0.9;
}

/* Error State */
.chatbot-error {
    background: var(--color-danger-light);
    border: 1px solid var(--color-danger);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    color: #991b1b;
}

/* =====================================================
   Responsive Design — Mobile First
   ===================================================== */

/* Tablet (481px – 768px) */
@media (max-width: 768px) {
    .chatbot-container {
        width: 360px;
        max-width: calc(100vw - 32px);
        height: 500px;
        max-height: calc(100vh - 120px);
    }
}

/* Mobile (max 480px) — near full screen */
@media (max-width: 480px) {
    .chatbot-toggle {
        bottom: 16px;
        right: 16px;
        width: 52px;
        height: 52px;
    }

    .chatbot-toggle-icon {
        width: 24px;
        height: 24px;
    }

    /* Full-screen chatbot on mobile */
    .chatbot-container {
        position: fixed;
        bottom: 0;
        right: 0;
        left: 0;
        top: 0;
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
        /* Use dvh (dynamic viewport height) so soft keyboard doesn't overlap */
        height: 100dvh;
    }

    /* Safe area padding for notched phones */
    .chatbot-header {
        padding: calc(var(--spacing-sm) + env(safe-area-inset-top, 0px)) var(--spacing-md) var(--spacing-sm);
    }

    .chatbot-avatar {
        width: 36px;
        height: 36px;
    }

    .chatbot-avatar-icon {
        width: 22px;
        height: 22px;
    }

    .chatbot-header-title {
        font-size: 0.95rem;
    }

    .chatbot-header-status {
        font-size: 0.7rem;
    }

    .chatbot-messages {
        padding: var(--spacing-md) var(--spacing-sm);
        gap: var(--spacing-sm);
        /* flex: 1 with overflow ensures messages scroll, not whole page */
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .chatbot-message {
        max-width: 88%;
    }

    .chatbot-message-content {
        font-size: 0.875rem;
        padding: 10px 14px;
        /* Allow long words to wrap cleanly */
        word-break: break-word;
        overflow-wrap: break-word;
    }

    /* Quick replies: scroll horizontally on mobile instead of wrapping awkwardly */
    .chatbot-quick-replies {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        margin-top: var(--spacing-sm);
    }

    .chatbot-quick-reply {
        font-size: 0.78rem;
        padding: 6px 12px;
        white-space: nowrap;
    }

    .chatbot-input-area {
        padding: var(--spacing-sm) var(--spacing-sm) calc(var(--spacing-sm) + env(safe-area-inset-bottom, 8px));
        /* Stick input to bottom, above keyboard */
        flex-shrink: 0;
    }

    .chatbot-input-wrapper {
        padding: 4px 4px 4px 14px;
    }

    .chatbot-input {
        font-size: 1rem; /* Prevents iOS auto-zoom on focus (must be >= 16px equiv) */
        padding: 6px 0;
    }

    .chatbot-send {
        width: 36px;
        height: 36px;
    }

    .chatbot-footer {
        padding: 6px var(--spacing-sm) calc(6px + env(safe-area-inset-bottom, 0px));
    }

    .chatbot-welcome-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .chatbot-welcome-title {
        font-size: 0.9rem;
    }

    .chatbot-welcome-text {
        font-size: 0.8rem;
    }
}

/* Very small phones (max 360px) */
@media (max-width: 360px) {
    .chatbot-message-content {
        font-size: 0.85rem;
    }

    .chatbot-header-title {
        font-size: 0.88rem;
    }

    .chatbot-quick-reply {
        font-size: 0.75rem;
        padding: 5px 10px;
    }
}

/* Accessibility - Focus States */
.chatbot-toggle:focus,
.chatbot-close:focus,
.chatbot-send:focus,
.chatbot-input:focus,
.chatbot-quick-reply:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Print - Hide Chatbot */
@media print {
    .chatbot-toggle,
    .chatbot-container {
        display: none !important;
    }
}