/* Chatbot Floating Widget Styles */
:root {
    --chat-bg: rgba(15, 23, 42, 0.85);
    --chat-border: rgba(0, 243, 255, 0.3);
    --chat-accent: #00f3ff;
    --chat-user-bg: #00f3ff;
    --chat-ai-bg: #334155;
    --chat-text: #ffffff;
}

/* Floating Action Button */
#chatbot-toggler {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 65px;
    height: 65px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--chat-accent), #2563eb);
    border: none;
    box-shadow: 0 4px 20px rgba(0, 243, 255, 0.5);
    cursor: pointer;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
}

#chatbot-toggler:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 30px rgba(0, 243, 255, 0.7);
}

#chatbot-toggler svg {
    width: 32px;
    height: 32px;
    fill: #0f172a;
    transition: all 0.3s;
}

/* Chat Widget Container */
#chatbot-widget {
    position: fixed;
    bottom: 100px;
    right: 25px;
    width: 380px;
    height: 550px;
    max-height: 80vh;
    background: var(--chat-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--chat-border);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 10000;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Segoe UI', system-ui, sans-serif;
}

#chatbot-widget.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

/* Header */
.chat-header {
    padding: 18px 20px;
    background: rgba(30, 41, 59, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--chat-accent);
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-status-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    box-shadow: 0 0 8px #22c55e;
}

.close-chat-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
    width: 32px;
    height: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Full Screen Mode */
#chatbot-widget.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    max-height: 100vh;
    border-radius: 0;
    border: none;
    transform: none !important;
    z-index: 99999;
}

#chatbot-widget.fullscreen .chat-messages {
    font-size: 1.1rem;
}

/* Header Controls */
.chat-controls {
    display: flex;
    gap: 10px;
}

.expand-chat-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.expand-chat-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.expand-chat-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

#chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
}

#chat-messages::-webkit-scrollbar {
    width: 6px;
}

#chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

/* Messages */
.message {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
    position: relative;
    animation: messageIn 0.3s ease-out forwards;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    align-self: flex-end;
    background: var(--chat-user-bg);
    color: #0f172a;
    font-weight: 600;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 10px rgba(0, 243, 255, 0.2);
}

.message.ai {
    align-self: flex-start;
    background: var(--chat-ai-bg);
    color: #e2e8f0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom-left-radius: 4px;
}

.message.loading {
    color: #94a3b8;
    font-style: italic;
    font-size: 0.85rem;
    padding: 8px 16px;
}

.message p {
    margin: 0 0 8px 0;
}

.message ul {
    margin: 5px 0 10px 20px;
    padding: 0;
    list-style-type: disc;
}

.message li {
    margin-bottom: 5px;
}

.message strong {
    color: #fff;
    font-weight: 700;
}

.message em {
    color: var(--chat-accent);
    font-style: italic;
}

/* Input Area */
.chat-input-container {
    padding: 15px;
    background: rgba(15, 23, 42, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 10px;
}

#chat-input-field {
    flex: 1;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    padding: 12px 16px;
    border-radius: 25px;
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}

#chat-input-field:focus {
    border-color: var(--chat-accent);
    background: rgba(30, 41, 59, 0.9);
}

#chat-send-btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--chat-accent);
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.2s, filter 0.2s;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.3);
}

#chat-send-btn:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

#chat-send-btn svg {
    width: 20px;
    height: 20px;
    fill: #0f172a;
    transform: translateX(2px);
    /* visual centering */
}

/* Language Toggle */
.lang-toggle-wrapper {
    position: relative;
}

.lang-toggle-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1rem;
    cursor: pointer;
    width: 36px;
    height: 32px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
    padding: 0 4px;
    font-family: inherit;
}

.lang-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: rgba(15, 23, 42, 0.97);
    border: 1px solid rgba(0, 243, 255, 0.25);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    min-width: 160px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px) scale(0.97);
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 99999;
}

.lang-dropdown.open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0) scale(1);
}

.lang-dropdown button {
    display: block;
    width: 100%;
    background: transparent;
    border: none;
    color: #cbd5e1;
    font-size: 0.9rem;
    font-family: inherit;
    padding: 10px 16px;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.lang-dropdown button:last-child {
    border-bottom: none;
}

.lang-dropdown button:hover {
    background: rgba(0, 243, 255, 0.1);
    color: #00f3ff;
}

.lang-dropdown button.lang-active {
    background: rgba(0, 243, 255, 0.15);
    color: #00f3ff;
    font-weight: 600;
}