/* 聊天试用功能的样式 */
/* 已将按钮样式移动到styles.css中的modal-content-actions */

/* 聊天窗口样式 */
.chat-window {
    display: none;
    position: fixed;
    z-index: 1100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay, rgba(0, 0, 0, 0.7));
    overflow: hidden;
    transition: all 0.3s ease;
}

.chat-window.show {
    display: block;
}

.chat-container {
    background-color: var(--card-bg-color);
    margin: 5vh auto;
    padding: 0;
    width: 80%;
    max-width: 900px;
    border-radius: 10px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
    position: relative;
    height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalFadeIn 0.3s;
    border: 1px solid var(--input-border-color);
}

@keyframes modalFadeIn {
    from {opacity: 0; transform: translateY(-20px);}
    to {opacity: 1; transform: translateY(0);}
}

.chat-header {
    padding: 15px 20px;
    background: linear-gradient(to right, var(--header-gradient-start), var(--header-gradient-end));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 10px 10px 0 0;
}

.chat-title {
    font-weight: bold;
    font-size: 1.2rem;
    margin: 0;
}

.chat-close {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.5rem;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.chat-close:hover {
    transform: scale(1.1);
}

.chat-messages {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    background-color: var(--primary-bg-color);
    height: calc(90vh - 140px);
}

.chat-message {
    max-width: 75%;
    padding: 12px 16px;
    border-radius: 12px;
    line-height: 1.5;
    position: relative;
    word-wrap: break-word;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.ai-message {
    background-color: var(--card-bg-color);
    color: var(--text-color);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border: 1px solid var(--input-border-color);
}

.system-message {
    background-color: var(--tag-bg-color);
    color: var(--tag-text-color);
    align-self: center;
    max-width: 90%;
    text-align: center;
    font-style: italic;
}

.message-time {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 5px;
    display: block;
}

.chat-input {
    display: flex;
    padding: 15px 20px;
    background-color: var(--card-bg-color);
    border-top: 1px solid var(--input-border-color);
}

.chat-input input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--input-border-color);
    border-radius: 6px;
    background-color: var(--input-bg-color);
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.chat-input input:focus {
    outline: none;
    border-color: var(--input-focus-border);
}

.chat-input button {
    margin-left: 10px;
    background-color: var(--primary-button-bg);
    color: var(--header-text-color);
    border: none;
    border-radius: 6px;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s;
}

.chat-input button:hover:not(:disabled) {
    background-color: var(--primary-button-hover);
    transform: translateY(-2px);
}

.chat-input button:disabled {
    background-color: var(--disabled-color);
    cursor: not-allowed;
    transform: none;
}

/* 加载指示器 */
.chat-loader {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--header-text-color);
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 未登录提示 */
.login-required {
    text-align: center;
    padding: 20px 15px;
    color: var(--text-color);
}

.login-required button {
    margin-top: 10px;
    background-color: var(--primary-button-bg);
    color: var(--header-text-color);
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
}

.login-required button:hover {
    background-color: var(--primary-button-hover);
    transform: translateY(-2px);
}

/* AI模型选择器样式 */
.model-selector {
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-selector label {
    font-size: 0.9rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    white-space: nowrap;
}

.model-select {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    min-width: 120px;
}

.model-select:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--header-gradient-start);
}

.model-select:focus {
    border-color: var(--header-gradient-start);
    box-shadow: 0 0 0 2px rgba(255, 105, 180, 0.2);
}

.model-select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: rgba(255, 255, 255, 0.6);
}

.model-select option {
    background: white;
    color: var(--text-color);
    padding: 4px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .chat-container {
        width: 95%;
        height: 85vh;
        margin: 7.5vh auto;
    }
    
    .chat-messages {
        height: calc(85vh - 120px);
    }
    
    .chat-message {
        max-width: 85%;
    }
    
    .chat-input input {
        padding: 10px;
    }
    
    .chat-input button {
        padding: 10px 15px;
    }
      .model-select {
        min-width: 100px;
        font-size: 0.85rem;
    }
}