/* 惜梦网盘 - 浅粉色少女风主题样式 */

/* 字体引入（使用系统可爱字体） */
@import url('https://fonts.googleapis.com/css2?family=ZCOOL+KuaiLe&family=Noto+Sans+SC:wght@400;500;700&display=swap');

/* ===== CSS变量 ===== */
:root {
    /* 主色调 - 浅粉色 */
    --primary: #ffb6c1;
    --primary-light: #ffe4e9;
    --primary-dark: #ff8fa3;
    --primary-very-light: #fff0f3;
    
    /* 辅助色 */
    --secondary: #ffc0cb;
    --accent: #ff69b4;
    
    /* 文字色 */
    --text: #5a4a4a;
    --text-light: #8a7a7a;
    --text-lighter: #aa9a9a;
    
    /* 背景色 */
    --bg: #fff5f7;
    --bg-white: #ffffff;
    --bg-card: #fffafa;
    
    /* 状态色 */
    --success: #98d982;
    --warning: #ffd700;
    --danger: #ff6b6b;
    --info: #87ceeb;
    
    /* 边框 */
    --border: #fadadd;
    --border-light: #fce4e8;
    
    /* 阴影 */
    --shadow: rgba(255, 182, 193, 0.3);
    --shadow-lg: rgba(255, 182, 193, 0.4);
    
    /* 圆角 */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 字体 */
    --font-cute: 'ZCOOL KuaiLe', 'Noto Sans SC', cursive;
    --font-main: 'Noto Sans SC', -apple-system, sans-serif;
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: var(--font-main);
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent);
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-very-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== 顶部导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    box-shadow: 0 2px 10px var(--shadow);
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-cute);
    font-size: 24px;
    color: white;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.logo-icon {
    font-size: 28px;
    animation: heartbeat 1.5s ease-in-out infinite;
}

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

.header-search {
    flex: 1;
    max-width: 400px;
    margin: 0 40px;
    display: flex;
    background: white;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--shadow);
}

.search-input {
    flex: 1;
    padding: 10px 20px;
    border: none;
    outline: none;
    background: transparent;
}

.search-btn {
    padding: 10px 16px;
    border: none;
    background: var(--primary-light);
    cursor: pointer;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--primary);
    color: white;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-info {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.3);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
}

.user-info:hover {
    background: rgba(255,255,255,0.5);
}

.user-info .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info .username {
    color: white;
    font-weight: 500;
}

.user-info .dropdown-arrow {
    color: white;
    font-size: 10px;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    min-width: 160px;
    background: white;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.user-info:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown .dropdown-item {
    display: block;
    padding: 12px 16px;
    color: var(--text);
    transition: var(--transition);
}

.user-dropdown .dropdown-item:hover {
    background: var(--primary-very-light);
    color: var(--primary-dark);
}

.user-dropdown hr {
    border: none;
    border-top: 1px solid var(--border-light);
    margin: 4px 0;
}

/* ===== 侧边栏 ===== */
.sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
    width: 200px;
    background: var(--bg-white);
    border-right: 1px solid var(--border-light);
    padding: 20px 0;
    overflow-y: auto;
}

.nav-menu {
    padding: 0 12px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--text);
    transition: var(--transition);
}

.nav-item:hover {
    background: var(--primary-very-light);
    color: var(--primary-dark);
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-icon {
    font-size: 18px;
}

.storage-info {
    margin: 20px 16px;
    padding: 16px;
    background: var(--primary-very-light);
    border-radius: var(--radius);
}

.storage-label {
    color: var(--text-light);
    font-size: 12px;
    margin-bottom: 8px;
}

.storage-bar {
    height: 8px;
    background: var(--border-light);
    border-radius: 4px;
    overflow: hidden;
}

.storage-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 4px;
    transition: width 0.3s;
}

.storage-text {
    color: var(--text-light);
    font-size: 12px;
    margin-top: 8px;
}

/* ===== 主内容区 ===== */
.main-content {
    margin-left: 200px;
    margin-top: 60px;
    padding: 20px;
    min-height: calc(100vh - 60px);
}

/* ===== 面包屑 ===== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-white);
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.breadcrumb-item {
    color: var(--text-light);
}

.breadcrumb-item:hover {
    color: var(--primary-dark);
}

.breadcrumb-sep {
    color: var(--text-lighter);
}

/* ===== 工具栏 ===== */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-white);
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.toolbar-left, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ===== 文件列表 ===== */
.file-list {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 8px;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.file-item:hover {
    background: var(--primary-very-light);
}

.file-checkbox {
    margin-right: 12px;
}

.file-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.file-icon {
    font-size: 32px;
    margin-right: 12px;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    color: var(--text);
    word-break: break-all;
}

.file-meta {
    display: flex;
    gap: 16px;
    color: var(--text-light);
    font-size: 12px;
    margin-top: 4px;
}

.file-actions {
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: var(--transition);
}

.file-item:hover .file-actions {
    opacity: 1;
}

.action-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background: var(--primary-light);
}

/* ===== 空状态 ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.6;
}

.empty-text {
    color: var(--text-light);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-outline:hover {
    background: white;
    color: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

/* ===== 表单 ===== */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text);
}

.form-input, .form-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    transition: var(--transition);
    background: white;
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255, 182, 193, 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* ===== 浮动按钮 ===== */
.fab-menu {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99;
}

.fab-btn {
    width: 56px;
    height: 56px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--shadow-lg);
    transition: var(--transition);
}

.fab-btn:hover {
    transform: rotate(90deg);
}

.fab-actions {
    position: absolute;
    bottom: 70px;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
}

.fab-menu.expanded .fab-actions {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.fab-action {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 2px 10px var(--shadow);
    transition: var(--transition);
}

.fab-action:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* ===== 弹窗 ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 200;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-md {
    max-width: 400px;
}

.modal-sm {
    max-width: 320px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    font-family: var(--font-cute);
    font-size: 20px;
    color: var(--text);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--primary-light);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
}

/* ===== 上传区域 ===== */
.upload-area {
    padding: 40px;
    border: 2px dashed var(--primary);
    border-radius: var(--radius);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.upload-area:hover, .upload-area.dragover {
    background: var(--primary-very-light);
    border-color: var(--primary-dark);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.upload-text {
    color: var(--text-light);
}

.upload-list {
    margin-top: 16px;
}

.upload-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
}

/* ===== 分享结果 ===== */
.share-result {
    padding: 16px;
    background: var(--primary-very-light);
    border-radius: var(--radius);
    margin-top: 16px;
}

.share-link {
    display: flex;
    gap: 8px;
}

.share-code {
    margin-top: 12px;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header-search {
        display: none;
    }
}