/**
 * 主样式文件 - 页面布局和响应式设计
 */

/* 登录页面 */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--clay-space-lg);
}

.login-card {
    max-width: 450px;
    width: 100%;
    text-align: center;
}

.login-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--clay-text-primary);
    margin-bottom: var(--clay-space-sm);
}

.login-subtitle {
    color: var(--clay-text-secondary);
    margin-bottom: var(--clay-space-lg);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--clay-space-md);
}

/* 首页 */
.home-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--clay-space-lg);
}

.home-card {
    max-width: 800px;
    width: 100%;
}

.home-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--clay-space-xl);
}

/* 公告区 */
.announcement-box {
    background: linear-gradient(145deg, rgba(255, 143, 179, 0.1), rgba(90, 143, 214, 0.1));
    border-radius: var(--clay-radius-md);
    padding: var(--clay-space-lg);
    margin-bottom: var(--clay-space-xl);
    border: 1px solid rgba(255, 143, 179, 0.2);
}

.announcement-header {
    display: flex;
    align-items: center;
    gap: var(--clay-space-sm);
    margin-bottom: var(--clay-space-md);
}

.announcement-icon {
    font-size: 1.5rem;
}

.announcement-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--clay-text-primary);
    flex: 1;
}

.announcement-wrapper {
    cursor: pointer;
    position: relative;
}

.announcement-content {
    color: var(--clay-text-primary);
    line-height: 1.6;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.announcement-content.collapsed {
    max-height: 4.8em; /* 约3行文本 */
}

.announcement-content.expanded {
    max-height: 1000px;
}

.announcement-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--clay-space-xs);
    padding: var(--clay-space-md) 0;
    margin-top: var(--clay-space-sm);
    background: linear-gradient(to bottom, transparent, rgba(255, 143, 179, 0.2));
    border-radius: 0 0 var(--clay-radius-md) var(--clay-radius-md);
    color: var(--clay-text-secondary);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.announcement-hint:hover {
    background: linear-gradient(to bottom, transparent, rgba(255, 143, 179, 0.3));
    color: var(--clay-text-primary);
}

.announcement-hint.collapsed {
    margin-top: -2em;
    padding-top: 3em;
}

.announcement-hint.expanded .hint-text::before {
    content: '收起';
}

.announcement-hint.collapsed .hint-text::before {
    content: '展开查看更多';
}

.announcement-hint .hint-text {
    font-weight: 500;
}

.announcement-hint.expanded .hint-icon {
    transform: rotate(180deg);
}

.announcement-hint .hint-icon {
    transition: transform 0.3s ease;
    font-size: 0.8rem;
}

.announcement-content p {
    margin-bottom: var(--clay-space-sm);
}

.announcement-content ul {
    margin: var(--clay-space-sm) 0;
    padding-left: var(--clay-space-lg);
}

.announcement-content li {
    margin-bottom: var(--clay-space-xs);
}

.announcement-content strong {
    color: var(--clay-text-primary);
    font-weight: 600;
}

.home-actions {
    display: flex;
    gap: var(--clay-space-md);
    margin-bottom: var(--clay-space-xl);
}

.home-actions button {
    flex: 1;
}

.space-list {
    display: grid;
    gap: var(--clay-space-md);
}

.space-item {
    cursor: pointer;
    padding: var(--clay-space-md);
}

.space-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--clay-space-xs);
}

.space-time {
    font-size: 0.875rem;
    color: var(--clay-text-secondary);
}

/* 提示条 */
.tip-bar {
    background: linear-gradient(145deg, var(--clay-blue-light), var(--clay-blue-main));
    padding: 0.75rem var(--clay-space-lg);
    border-radius: var(--clay-radius-md);
    text-align: center;
    color: var(--clay-text-primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin: 1rem var(--clay-space-lg) 0 var(--clay-space-lg);
    box-shadow: var(--clay-shadow-sm), var(--clay-inset-sm);
}

/* 空间页面布局 */
.space-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--clay-space-lg);
    padding: var(--clay-space-lg);
}

.space-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--clay-space-md);
    height: calc(100vh - 2 * var(--clay-space-lg) - 4rem);
    position: sticky;
    top: var(--clay-space-lg);
}

.space-sidebar h2 {
    font-size: 1.5rem;
    margin-bottom: var(--clay-space-sm);
}

.sidebar-space-list {
    display: flex;
    flex-direction: column;
    gap: var(--clay-space-xs);
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.sidebar-space-item {
    padding: var(--clay-space-sm) var(--clay-space-md);
    border-radius: var(--clay-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.3);
}

.sidebar-space-item:hover {
    background: rgba(255, 255, 255, 0.5);
}

.sidebar-space-item.active {
    background: linear-gradient(145deg, #5a8fd6, #4a7fc2);
    color: var(--clay-white);
    font-weight: 600;
}

/* 内容区 */
.content-area {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--clay-space-lg);
}

.file-list-container {
    display: flex;
    flex-direction: column;
    gap: var(--clay-space-md);
    height: calc(100vh - 2 * var(--clay-space-lg) - 4rem);
    overflow-y: auto;
}

.file-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.file-list-header h3 {
    font-size: 1.5rem;
}

.file-list-container > button {
    flex-shrink: 0;
}

/* 文件列表 */
.file-list {
    display: flex;
    flex-direction: column;
    gap: var(--clay-space-sm);
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--clay-space-sm);
    padding: var(--clay-space-sm);
    border-radius: var(--clay-radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.3);
}

.file-item:hover {
    background: rgba(255, 255, 255, 0.5);
}

.file-item.active {
    background: linear-gradient(145deg, #d8dde6, #c8cdd8);
}

.file-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.file-info {
    flex: 1;
    min-width: 0;
}

.file-preview,
.file-name {
    font-size: 0.875rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 0.25rem;
}

.file-time {
    font-size: 0.75rem;
    color: var(--clay-text-secondary);
}

.file-delete-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.file-delete-btn:hover {
    opacity: 1;
}

/* 预览区 */
.preview-container {
    height: calc(100vh - 2 * var(--clay-space-lg) - 4rem);
    overflow-y: auto;
    position: sticky;
    top: var(--clay-space-lg);
    display: flex;
    flex-direction: column;
}

.preview-container h3 {
    font-size: 1.5rem;
    margin-bottom: var(--clay-space-md);
    flex-shrink: 0;
}

.preview-area {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.text-preview pre,
.text-edit textarea {
    background: rgba(255, 255, 255, 0.5);
    padding: var(--clay-space-md);
    border-radius: var(--clay-radius-md);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin-bottom: var(--clay-space-md);
}

.text-edit textarea {
    min-height: 300px;
}

.image-preview img {
    max-width: 100%;
    border-radius: var(--clay-radius-md);
    margin-bottom: var(--clay-space-md);
}

.file-preview-info {
    padding: var(--clay-space-md);
}

.file-preview-info p {
    margin-bottom: var(--clay-space-sm);
}

.preview-actions {
    display: flex;
    gap: var(--clay-space-sm);
}

.preview-actions button {
    flex: 1;
}

/* 响应式设计 - 平板 */
@media (max-width: 1024px) {
    .space-layout {
        grid-template-columns: 200px 1fr;
    }

    .content-area {
        grid-template-columns: 300px 1fr;
    }
}

/* 响应式设计 - 移动端 */
@media (max-width: 768px) {
    .space-layout {
        grid-template-columns: 1fr;
        padding: var(--clay-space-sm);
    }

    .space-sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        transition: left 0.3s ease;
        z-index: 1000;
        padding: var(--clay-space-lg);
    }

    .space-sidebar.active {
        left: 0;
    }

    .content-area {
        grid-template-columns: 1fr;
    }

    .file-list-container {
        order: 1;
    }

    .preview-container {
        order: 2;
        position: static;
    }

    .file-list {
        max-height: 300px;
    }

    .clay-card {
        border-radius: var(--clay-radius-md);
        padding: var(--clay-space-md);
    }

    .clay-btn-primary,
    .clay-btn-secondary {
        padding: 0.875rem 1.5rem;
        border-radius: 20px;
    }

    .home-actions {
        flex-direction: column;
    }

    .modal-content {
        width: 95%;
    }

    .error-message,
    .success-message {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}