/* ── CDN Manager — zfile.vip 白底风格 ── */

:root {
    --bg: #ffffff;
    --bg-alt: #f5f7fa;
    --bg-card: #ffffff;
    --bg-hover: #f0f2f5;
    --border: #e8eaed;
    --border-light: #f0f1f2;
    --text: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --accent: #2563eb;
    --accent-light: #3b82f6;
    --accent-subtle: #eff6ff;
    --accent-border: #bfdbfe;
    --green: #16a34a;
    --green-subtle: #f0fdf4;
    --purple: #7c3aed;
    --red: #dc2626;
    --red-subtle: #fef2f2;
    --red-border: #fecaca;
    --yellow: #d97706;
    --yellow-subtle: #fffbeb;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
    --shadow: 0 4px 12px rgba(0,0,0,.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,.08);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: .2s cubic-bezier(.4,0,.2,1);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Cascadia Code", Consolas, monospace;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px;-webkit-font-smoothing:antialiased}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-light)}
img{max-width:100%;display:block}
svg{display:block;flex-shrink:0}

/* ── 按钮 ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:.9rem;font-weight:500;cursor:pointer;border:1px solid transparent;transition:all var(--transition);white-space:nowrap;user-select:none;font-family:var(--font);line-height:1.4}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 2px 6px rgba(37,99,235,.3)}
.btn-primary:hover{background:var(--accent-light);border-color:var(--accent-light);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.35)}
.btn-secondary{background:var(--bg);color:var(--text);border-color:var(--border);box-shadow:var(--shadow-sm)}
.btn-secondary:hover{background:var(--bg-hover);border-color:#d1d5db}
.btn-outline{background:transparent;color:var(--text);border-color:var(--border)}
.btn-outline:hover{background:var(--bg-hover);border-color:#d1d5db}
.btn-ghost{background:transparent;color:var(--text-secondary);border-color:transparent}
.btn-ghost:hover{background:var(--bg-hover);color:var(--text)}
.btn-danger{background:var(--red);color:#fff;border-color:var(--red)}
.btn-danger:hover{background:#b91c1c;border-color:#b91c1c}
.btn-sm{padding:5px 12px;font-size:.82rem}
.btn-lg{padding:12px 28px;font-size:1rem;border-radius:var(--radius-lg)}
.btn-block{width:100%;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}

/* ── 导航栏 ── */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:1.15rem;font-weight:700;color:var(--text)}
.nav-logo:hover{color:var(--text)}
.nav-links{display:flex;align-items:center;gap:10px}

/* ── 主页 Hero ── */
.page-home{padding-top:60px}
.hero{max-width:1200px;margin:0 auto;padding:80px 24px 40px;display:flex;align-items:center;gap:80px;min-height:calc(100vh - 60px - 180px)}
.hero-content{flex:1}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:5px 16px;border-radius:20px;background:var(--accent-subtle);color:var(--accent);font-size:.84rem;font-weight:500;margin-bottom:28px;border:1px solid var(--accent-border)}
.tag-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse-dot 2s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.85)}}
.hero-title{font-size:3rem;font-weight:800;line-height:1.15;margin-bottom:20px;letter-spacing:-.02em;color:#111827}
.hero-title span{color:var(--accent);position:relative}
.hero-desc{font-size:1.1rem;color:var(--text-secondary);line-height:1.75;margin-bottom:36px;max-width:480px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-illustration{flex:1;max-width:480px;animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ── 特性区 ── */
.features{padding:0 24px 80px;background:var(--bg-alt);border-top:1px solid var(--border)}
.features-inner{max-width:1200px;margin:0 auto;padding-top:80px}
.features-heading{text-align:center;margin-bottom:56px}
.features-heading h2{font-size:2rem;font-weight:700;color:#111827;margin-bottom:12px}
.features-heading p{color:var(--text-secondary);font-size:1.05rem}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 32px;transition:all var(--transition);position:relative;overflow:hidden}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#d1d5db}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),#818cf8);opacity:0;transition:opacity var(--transition)}
.feature-card:hover::before{opacity:1}
.feature-icon-wrap{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;background:var(--accent-subtle)}
.feature-icon-wrap.purple{background:#f5f3ff}
.feature-icon-wrap.green{background:var(--green-subtle)}
.feature-card h3{font-size:1.1rem;font-weight:600;margin-bottom:8px;color:#111827}
.feature-card p{color:var(--text-secondary);font-size:.92rem;line-height:1.7}

/* ── 页脚 ── */
.footer{text-align:center;padding:32px 24px;color:var(--text-muted);font-size:.85rem;background:var(--bg);border-top:1px solid var(--border)}
.footer a{color:var(--text-secondary)}
.footer a:hover{color:var(--accent)}

/* ── 登录页 ── */
.page-login{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px;background:var(--bg-alt)}
.login-container{width:100%;max-width:400px;text-align:center;background:var(--bg);padding:48px 40px;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.login-logo{display:inline-block;margin-bottom:24px}
.login-container h1{font-size:1.4rem;margin-bottom:8px;font-weight:600;color:#111827}
.login-container .login-sub{color:var(--text-secondary);font-size:.9rem;margin-bottom:32px}
.login-form{text-align:left}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:6px;font-size:.88rem;color:var(--text);font-weight:500}
.form-group input{width:100%;padding:10px 14px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);color:var(--text);font-size:.95rem;font-family:var(--font);transition:all var(--transition);outline:none}
.form-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.form-group input::placeholder{color:var(--text-muted)}
.form-error{background:var(--red-subtle);color:var(--red);padding:10px 14px;border-radius:var(--radius);margin-bottom:16px;font-size:.88rem;border:1px solid var(--red-border)}
.hidden{display:none!important}
.login-footer{margin-top:24px;font-size:.88rem}
.login-footer a{color:var(--text-secondary)}
.login-footer a:hover{color:var(--accent)}

/* ── 管理页面布局 ── */
.page-manage{display:flex;flex-direction:column;height:100vh;overflow:hidden}
.manage-header{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:54px;flex-shrink:0;background:var(--bg);border-bottom:1px solid var(--border)}
.manage-logo{display:flex;align-items:center;gap:8px;font-size:1rem;font-weight:700;color:var(--text)}
.manage-logo:hover{color:var(--text)}
.manage-actions{display:flex;align-items:center;gap:8px}
.manage-info{font-size:.78rem;color:var(--text-muted);padding:0 8px;white-space:nowrap}
.manage-body{display:flex;flex:1;overflow:hidden}

/* ── 侧边栏 ── */
.manage-sidebar{width:230px;flex-shrink:0;position:relative;background:var(--bg);border-right:1px solid var(--border);display:flex;flex-direction:column;transition:width var(--transition)}
.manage-sidebar.collapsed{width:0;overflow:hidden}
.sidebar-inner{flex:1;overflow-y:auto;padding:16px}
.sidebar-title{font-size:.73rem;text-transform:uppercase;color:var(--text-muted);letter-spacing:.06em;margin-bottom:14px;font-weight:600}
.sidebar-toggle{position:absolute;right:-12px;top:50%;transform:translateY(-50%);width:24px;height:24px;border-radius:50%;border:1px solid var(--border);background:var(--bg);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition);z-index:10;box-shadow:var(--shadow-sm)}
.sidebar-toggle:hover{border-color:var(--accent);color:var(--accent);box-shadow:var(--shadow)}
.manage-sidebar.collapsed .sidebar-toggle svg{transform:rotate(180deg)}
.folder-tree{font-size:.85rem}
.tree-loading{color:var(--text-muted);padding:8px 0}
.tree-item{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:6px;cursor:pointer;transition:all var(--transition);color:var(--text-secondary)}
.tree-item:hover{background:var(--bg-hover);color:var(--text)}
.tree-item.active{background:var(--accent-subtle);color:var(--accent);font-weight:500}
.tree-item .tree-icon{flex-shrink:0;width:18px;text-align:center;font-size:.85rem}
.tree-item .tree-arrow{flex-shrink:0;width:14px;text-align:center;transition:transform var(--transition);font-size:.65rem;color:var(--text-muted)}
.tree-item .tree-arrow.expanded{transform:rotate(90deg)}
.tree-children{padding-left:16px}
.tree-children.collapsed{display:none}

/* ── 主内容区 ── */
.manage-main{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:16px 24px;background:var(--bg-alt)}
.breadcrumb{display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-bottom:14px;font-size:.88rem;flex-shrink:0}
.breadcrumb a{color:var(--text-muted);padding:3px 8px;border-radius:4px;transition:all var(--transition)}
.breadcrumb a:hover{color:var(--accent);background:var(--accent-subtle)}
.breadcrumb .sep{color:#d1d5db;margin:0 1px;font-size:.75rem}
.toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;flex-shrink:0}
.item-count{font-size:.83rem;color:var(--text-muted)}
.toolbar-right{display:flex;gap:6px}

/* 拖拽上传区 */
.drop-zone{border:2px dashed #d1d5db;border-radius:var(--radius-lg);padding:32px;text-align:center;margin-bottom:16px;flex-shrink:0;cursor:pointer;transition:all var(--transition);background:var(--bg)}
.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-subtle)}
.drop-zone-content{pointer-events:none}
.drop-zone p{color:var(--text-muted);margin-top:10px;font-size:.9rem}

/* ── 文件列表 ── */
.file-list{flex:1;overflow-y:auto;border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.file-table{width:100%;border-collapse:collapse;table-layout:fixed}
.file-table th{text-align:left;padding:11px 16px;font-size:.76rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;background:var(--bg-alt);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1}
.file-table th:first-child,.file-table td:first-child{padding-left:20px}
.file-table th:last-child,.file-table td:last-child{padding-right:20px}
.col-name{width:auto}.col-size{width:110px}.col-modified{width:170px}.col-actions{width:130px}
.file-table td{padding:10px 16px;border-bottom:1px solid var(--border-light);font-size:.88rem;transition:background var(--transition)}
.file-table tr:hover td{background:var(--accent-subtle)}
.file-table tr:last-child td{border-bottom:none}
.file-name{display:flex;align-items:center;gap:10px;overflow:hidden}
.file-name .file-icon{flex-shrink:0;font-size:1.1rem;width:24px;text-align:center}
.file-name .file-link{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer;transition:color var(--transition);color:var(--text)}
.file-name .file-link:hover{color:var(--accent)}
.file-name .folder-link{color:var(--purple);font-weight:500}
.file-name .folder-link:hover{color:#6d28d9}
.file-actions{display:flex;gap:4px;opacity:0;transition:opacity var(--transition)}
.file-table tr:hover .file-actions{opacity:1}
.file-actions button{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:5px;border-radius:5px;font-size:.85rem;transition:all var(--transition);display:flex;align-items:center;line-height:1}
.file-actions button:hover{background:var(--bg-hover);color:var(--text)}
.file-actions button.action-delete:hover{color:var(--red);background:var(--red-subtle)}

/* 空状态 */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 24px;text-align:center}
.empty-state svg{margin-bottom:16px;opacity:.35}
.empty-state p{color:var(--text-muted);font-size:.95rem}

/* ── 模态框 ── */
.modal-overlay{position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,.35);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity var(--transition)}
.modal-overlay.active{opacity:1;pointer-events:auto}
.modal{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:0 20px 60px rgba(0,0,0,.12);width:90%;max-width:440px;max-height:90vh;overflow-y:auto;transform:scale(.95) translateY(8px);transition:transform var(--transition)}
.modal-overlay.active .modal{transform:scale(1) translateY(0)}
.modal-lg{max-width:800px;max-height:85vh;display:flex;flex-direction:column}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:1.05rem;font-weight:600;color:#111827}
.modal-close{background:none;border:none;color:var(--text-muted);font-size:1.4rem;cursor:pointer;padding:0 4px;line-height:1;transition:color var(--transition)}
.modal-close:hover{color:var(--text)}
.modal-body{padding:24px}
.modal-lg .modal-body{flex:1;overflow:hidden;display:flex;flex-direction:column}
.modal-footer{display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:16px 24px;border-top:1px solid var(--border)}
.modal-footer .modal-hint{flex:1;font-size:.82rem;color:var(--text-muted)}
.text-warning{color:var(--yellow);font-size:.85rem;margin-top:8px;background:var(--yellow-subtle);padding:8px 12px;border-radius:var(--radius);border:1px solid #fde68a}

/* 代码编辑器 */
.code-editor{width:100%;flex:1;min-height:300px;padding:16px;border-radius:var(--radius);background:#fafbfc;border:1px solid var(--border);color:var(--text);font-family:var(--font-mono);font-size:.84rem;line-height:1.7;resize:none;outline:none;tab-size:4}
.code-editor:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.1);background:var(--bg)}
.form-input{width:100%;padding:10px 14px;border-radius:var(--radius);background:var(--bg);border:1px solid var(--border);color:var(--text);font-size:.95rem;font-family:var(--font);outline:none;transition:all var(--transition)}
.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.1)}

/* ── Toast ── */
.toast-container{position:fixed;top:16px;right:16px;z-index:2000;display:flex;flex-direction:column;gap:8px}
.toast{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:12px 18px;font-size:.88rem;box-shadow:var(--shadow-lg);animation:toast-in .3s ease-out;display:flex;align-items:center;gap:8px;max-width:380px}
.toast-success{border-left:3px solid var(--green)}
.toast-error{border-left:3px solid var(--red)}
.toast-removing{animation:toast-out .3s ease-in forwards}
@keyframes toast-in{from{transform:translateX(120%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes toast-out{from{transform:translateX(0);opacity:1}to{transform:translateX(120%);opacity:0}}

/* ── 404 ── */
.page-404{display:flex;align-items:center;justify-content:center;min-height:100vh;text-align:center;padding:24px;background:var(--bg-alt)}
.error-container{background:var(--bg);padding:64px;border-radius:var(--radius-xl);box-shadow:var(--shadow);border:1px solid var(--border)}
.error-code{font-size:7rem;font-weight:800;color:var(--accent);line-height:1;margin-bottom:12px;letter-spacing:-.03em}
.error-container h1{font-size:1.5rem;margin-bottom:8px;color:#111827}
.error-container p{color:var(--text-secondary);margin-bottom:28px}
.error-container svg{display:block;margin:0 auto 24px;opacity:.6}

/* ── 滚动条 ── */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#9ca3af}

/* ── 响应式 ── */
@media(max-width:900px){
    .hero{flex-direction:column;text-align:center;padding:60px 20px 40px;gap:50px}
    .hero-title{font-size:2.2rem}
    .hero-desc{margin:0 auto 36px}
    .hero-actions{justify-content:center}
    .hero-illustration{max-width:320px}
    .features-grid{grid-template-columns:1fr}
    .manage-sidebar{width:200px}
    .col-modified{display:none}
}
@media(max-width:640px){
    .manage-sidebar{display:none}
    .manage-main{padding:12px 16px}
    .col-modified{display:none}
    .col-size{display:none}
    .modal-lg{max-width:95%}
    .hero-title{font-size:1.8rem}
    .features-heading h2{font-size:1.6rem}
    .login-container{padding:36px 24px}
    .error-container{padding:40px 24px}
    .error-code{font-size:5rem}
}