/* --- ОБЩИЕ СТИЛИ И ПЕРЕМЕННЫЕ V8 --- */
:root {
    --chat-primary-color: #0066FF;
    --chat-dark-bg: #1a1a1a;
    --chat-medium-bg: #2e2e2e;
    --chat-light-bg: #3a3a3a;
    --chat-text-color: #f0f0f0;
    --chat-text-secondary: #999;
}

#golubef-ai-chat-container,
#chat-overlay,
#chat-window {
    font-family: 'Inter', 'Montserrat', sans-serif;
}

/* --- ОВЕРЛЕЙ ДЛЯ ЗАТЕМНЕНИЯ ФОНА --- */
#chat-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 2147483647;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#chat-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* --- НАЧАЛЬНОЕ СОСТОЯНИЕ (ВСТРОЕННОЕ ПОЛЕ) --- */
#chat-initial-state {
    background-color: var(--chat-dark-bg);
    padding: 25px;
    border-radius: 16px;
    max-width: 800px;
    margin: 40px auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

#chat-input-container {
    display: flex;
    background-color: var(--chat-medium-bg);
    border-radius: 30px;
    padding: 5px;
    border: 1px solid var(--chat-light-bg);
}

#initial-chat-input {
    flex-grow: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--chat-text-color);
    font-size: 1em;
    padding: 10px 20px;
}

#initial-chat-input::placeholder {
    color: var(--chat-text-secondary);
}

#initial-chat-send-button {
    background-color: var(--chat-primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#initial-chat-send-button:hover {
    background-color: #0056e6;
}

#initial-quick-replies {
    margin-top: 15px;
    text-align: center;
    color: var(--chat-text-secondary);
    font-size: 0.9em;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.quick-reply-chip {
    background-color: var(--chat-light-bg);
    color: var(--chat-text-color);
    border: 1px solid #5a5a5a;
    border-radius: 16px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.85em;
    transition: background-color 0.2s ease;
}

.quick-reply-chip:hover {
    background-color: var(--chat-primary-color);
}

/* --- ОКНО ЧАТА (РАЗВЁРНУТОЕ) --- */
#chat-window {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2147483647;
    width: 600px;
    height: 80vh;
    max-width: 95%;
    max-height: 90vh;
    background-color: var(--chat-medium-bg);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, -45%) scale(0.95);
}

#chat-window.visible {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

/* --- ПРОГРЕСС-БАР СВЕРХУ ОКНА --- */
#chat-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--chat-primary-color), #00d4ff);
    width: 0%;
    transition: width 0.3s ease;
    z-index: 10;
}

/* --- ЭЛЕМЕНТЫ ОКНА ЧАТА --- */
#chat-header {
    background-color: var(--chat-dark-bg);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    font-size: 1.1em;
}

#chat-close-button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.2s ease;
    margin-top: 4px;
}

#chat-close-button:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

#chat-header-buttons {
    display: flex;
    align-items: center;
    gap: 5px;
}

#chat-clear-button {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.2s ease;
}

#chat-clear-button:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
}

#chat-messages {
    flex-grow: 1;
    padding: 15px;
    overflow-y: auto;
}

/* --- СТИЛИ СООБЩЕНИЙ --- */
.message {
    margin-bottom: 12px;
    padding: 10px 15px;
    border-radius: 18px;
    max-width: 85%;
    line-height: 1.5;
    font-size: 0.95em;
    text-align: left;
    animation: message-appear 0.3s ease-out;
}

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

.message.user {
    background-color: var(--chat-primary-color);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.message.assistant {
    background-color: var(--chat-light-bg);
    color: var(--chat-text-color);
    margin-right: auto;
    border-bottom-left-radius: 4px;
}

.message.system {
    background-color: transparent;
    color: var(--chat-text-secondary);
    font-style: italic;
    text-align: center;
    max-width: 100%;
}

/* --- TIMESTAMP ПОД СООБЩЕНИЕМ --- */
.message-timestamp {
    font-size: 0.75em;
    color: var(--chat-text-secondary);
    margin-top: 4px;
    opacity: 0.7;
}

/* --- ИНДИКАТОР ПЕЧАТИ (3 ТОЧКИ) --- */
.message.system.typing {
    background-color: transparent;
    text-align: left;
}

.typing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 0;
}

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

.typing-dot:nth-child(1) { animation-delay: 0s; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.6;
    }
    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* --- ПОЛЕ ВВОДА ВНУТРИ ЧАТА --- */
#chat-input-area {
    display: flex;
    padding: 10px 15px;
    border-top: 1px solid var(--chat-light-bg);
    background-color: var(--chat-dark-bg);
}

#chat-input-area #chat-input {
    flex-grow: 1;
    border: none;
    border-radius: 20px;
    padding: 12px 18px;
    background-color: var(--chat-light-bg);
    color: white;
    outline: none;
    margin-right: 10px;
    font-size: 1em;
}

#chat-input-area #chat-send-button {
    background-color: var(--chat-primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#chat-input-area #chat-input:disabled,
#chat-input-area #chat-send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#chat-input-area #chat-send-button:disabled {
    background-color: var(--chat-light-bg);
}

/* --- СТАТУС "AI ОБРАБАТЫВАЕТ..." --- */
#chat-status-message {
    text-align: center;
    padding: 8px 12px;
    font-size: 0.85em;
    color: var(--chat-text-secondary);
    font-style: italic;
    background-color: rgba(0, 102, 255, 0.08);
    border-top: 1px solid rgba(0, 102, 255, 0.25);
    display: none;
}

/* --- БЫСТРЫЕ ОТВЕТЫ ВНУТРИ ЧАТА --- */
#chat-quick-replies {
    padding: 0 15px 10px;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    background-color: var(--chat-dark-bg);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.2) transparent;
    padding-right: 10px;
    overflow-y: hidden;
}

#chat-quick-replies::-webkit-scrollbar {
    height: 6px;
}

#chat-quick-replies::-webkit-scrollbar-track {
    background: transparent;
}

#chat-quick-replies::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
}

#chat-quick-replies::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.3);
}

.quick-reply-button {
    background-color: var(--chat-light-bg);
    color: var(--chat-text-color);
    border: 1px solid #5a5a5a;
    border-radius: 18px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 0.85em;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.quick-reply-button:hover {
    background-color: var(--chat-primary-color);
    border-color: var(--chat-primary-color);
}

/* --- АДАПТИВНОСТЬ ДЛЯ МОБИЛОК --- */
@media (max-width: 600px) {
    #chat-window {
        top: 0;
        left: 0;
        width: 100%;
        height: 100dvh;
        max-width: 100%;
        max-height: 100dvh;
        border-radius: 0;
        box-shadow: none;
        transform: none;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    #chat-window.visible {
        transform: none;
    }

    #chat-header {
        position: sticky;
        top: 0;
        z-index: 1002;
        background-color: var(--chat-dark-bg);
        padding: 15px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-weight: bold;
        font-size: 1.1em;
    }

    #chat-messages {
        flex: 1;
        overflow-y: auto;
        padding: 15px;
        -webkit-overflow-scrolling: touch;
    }

    #chat-quick-replies {
        flex-shrink: 0;
        padding: 10px 15px 10px;
        background-color: var(--chat-dark-bg);
    }

    #chat-input-area {
        flex-shrink: 0;
        padding: 10px 15px;
        border-top: 1px solid var(--chat-light-bg);
        background-color: var(--chat-dark-bg);
        position: sticky;
        bottom: 0;
        z-index: 1002;
        padding-bottom: 0;
    }

    #chat-input-area #chat-input {
        flex-grow: 1;
        border: none;
        border-radius: 20px;
        padding: 12px 18px;
        background-color: var(--chat-light-bg);
        color: white;
        outline: none;
        margin-right: 10px;
        font-size: 1em;
    }

    #chat-input-area #chat-send-button {
        background-color: var(--chat-primary-color);
        color: white;
        border: none;
        border-radius: 50%;
        width: 44px;
        height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        transition: background-color 0.2s ease;
    }
}