/* ============================================================
   voxuk.fun · 直链网盘 v4 — 当代浅色工作台
   全新视觉语言：纯白面板 / 细灰边框 / 低阴影 / 单色靛蓝 /
   方角控件 / 无玻璃拟态 / 无渐变滥用 / 无漂浮光斑
   ============================================================ */

:root {
  /* 色板：灰阶 + 单一强调色（靛蓝） */
  --bg: #f4f5f8;          /* 页面底色 */
  --panel: #ffffff;        /* 面板 / 卡片 */
  --panel-2: #fafbfc;      /* 次级填充 */
  --line: #e6e8ee;         /* 常规边框 */
  --line-2: #d8dbe3;       /* 强调边框 */
  --ink: #101828;          /* 主文字 */
  --ink-2: #475467;        /* 次级文字 */
  --ink-3: #98a2b3;        /* 弱文字 / 占位 */
  --accent: #4f46e5;       /* 靛蓝主色 */
  --accent-hover: #4338ca;
  --accent-soft: #eef2ff;  /* 靛蓝浅底 */
  --accent-line: #c7d2fe;
  --danger: #d92d20;
  --danger-hover: #b42318;
  --danger-soft: #fef3f2;
  --danger-line: #fecdca;
  --success: #067647;
  --success-soft: #ecfdf3;
  --success-line: #a6f4c5;

  /* 几何与质感 */
  --r-panel: 14px;
  --r-ctrl: 9px;
  --r-chip: 6px;
  --shadow-panel: 0 1px 2px rgba(16, 24, 40, 0.04),
    0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-pop: 0 10px 30px -8px rgba(16, 24, 40, 0.18);
  --focus-ring: 0 0 0 3px rgba(79, 70, 229, 0.16);
  --font: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.55;
  min-height: 100vh;
  background: var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }
button { font-family: inherit; }
::selection { background: var(--accent-soft); }

@keyframes in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}
.in { animation: in 0.3s ease backwards; }

/* ============================================================
   按钮体系（方角、实色、无渐变）
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid transparent; cursor: pointer;
  font-weight: 600; font-size: 0.92rem; letter-spacing: 0.2px;
  color: #fff; background: var(--accent);
  border-radius: var(--r-ctrl);
  padding: 9px 18px;
  transition: background 0.15s ease, border-color 0.15s ease,
    color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
  -webkit-user-select: none; user-select: none;
  white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-sm { padding: 6px 13px; font-size: 0.85rem; }

/* 白底次按钮 */
.btn-ghost {
  color: var(--ink-2); background: var(--panel);
  border-color: var(--line-2);
}
.btn-ghost:hover { color: var(--accent); background: var(--accent-soft); border-color: var(--accent-line); }
.btn-ghost:active { background: var(--accent-soft); }

/* 危险按钮 */
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: var(--danger-hover); }
.btn-danger.btn-ghost { color: var(--danger); background: var(--panel); border-color: var(--danger-line); }
.btn-danger.btn-ghost:hover { background: var(--danger-soft); border-color: var(--danger-line); color: var(--danger-hover); }

body.auth-page form .btn,
body.dash-page.auth-page form .btn { width: 100%; padding: 11px 18px; margin-top: 6px; }

/* ============================================================
   表单控件
   ============================================================ */
label {
  display: block; margin: 0 0 6px;
  font-size: 0.86rem; font-weight: 600; color: var(--ink);
}
input[type="email"], input[type="password"], input[type="text"], select {
  width: 100%; padding: 10px 13px;
  font-size: 0.95rem; color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line-2);
  border-radius: var(--r-ctrl);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  font-family: inherit;
}
input::placeholder { color: var(--ink-3); }
input:hover, select:hover { border-color: #b9bfcd; }
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}

/* ============================================================
   提示条
   ============================================================ */
.error, .success {
  border-radius: var(--r-ctrl);
  padding: 10px 14px;
  font-size: 0.88rem; margin-bottom: 16px;
  border: 1px solid transparent;
}
.error { background: var(--danger-soft); border-color: var(--danger-line); color: var(--danger-hover); }
.success { background: var(--success-soft); border-color: var(--success-line); color: var(--success); }
.success a { color: var(--accent); font-weight: 700; }
.msg.success { display: block; }

/* ============================================================
   认证页（登录 / 注册 / 修改密码的独立卡）
   body.auth-page：整屏居中白卡
   ============================================================ */
body.auth-page {
  display: flex; align-items: center; justify-content: center;
  padding: 30px 16px;
}
body.auth-page > .container {
  width: 100%; max-width: 420px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-pop);
  padding: 34px 34px 30px;
}
body.auth-page h1 {
  font-size: 1.45rem; font-weight: 700;
  color: var(--ink); margin-bottom: 4px;
}
body.auth-page .auth-brand {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 26px;
}
body.auth-page .auth-brand .mark {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 1rem;
  background: var(--accent);
}
body.auth-page .auth-brand .t {
  display: flex; flex-direction: column; line-height: 1.2;
}
body.auth-page .auth-brand .t b { font-size: 1.02rem; color: var(--ink); letter-spacing: 0.2px; }
body.auth-page .auth-brand .t span { font-size: 0.7rem; color: var(--ink-3); letter-spacing: 0.18em; text-transform: uppercase; }
body.auth-page .auth-sub { font-size: 0.9rem; color: var(--ink-3); margin-bottom: 22px; }
body.auth-page form input[type="email"],
body.auth-page form input[type="password"] { margin-bottom: 16px; }
body.auth-page .link, body.auth-page .back-link {
  display: block; text-align: center; margin-top: 20px;
  font-size: 0.87rem; color: var(--ink-3);
}
body.auth-page .link a { color: var(--accent); font-weight: 600; }
body.auth-page .link a:hover { text-decoration: underline; }

/* ============================================================
   Dash 布局：左侧栏 + 右侧主区
   body: dash-page + (app-page | profile-page | auth-page)
   ============================================================ */
body.dash-page, body.dash-page.auth-page {
  display: flex; align-items: flex-start; justify-content: center;
  gap: 20px; padding: 24px;
}
body.dash-page > .container {
  flex: 1 1 auto; width: 100%; min-width: 0;
  max-width: 1180px; margin: 0;
}
body.dash-page.profile-page > .container { max-width: 860px; }
body.dash-page.auth-page > .container { max-width: 520px; }

/* ---------- 侧栏 ---------- */
.sidebar {
  position: sticky; top: 24px;
  flex: 0 0 232px; width: 232px;
  display: flex; flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-panel);
  padding: 20px 14px 14px;
}
.brand { display: flex; align-items: center; gap: 11px; padding: 2px 8px 20px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 1rem; text-decoration: none;
  background: var(--accent);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.brand-name { font-weight: 700; font-size: 1.02rem; color: var(--ink); text-decoration: none; }
.brand-sub { font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3); }
.brand-name:hover { color: var(--ink); text-decoration: none; }

.nav { display: flex; flex-direction: column; gap: 3px; }
.nav-item {
  display: flex; align-items: center;
  padding: 9px 12px; border-radius: var(--r-ctrl);
  color: var(--ink-2); font-size: 0.92rem; font-weight: 500;
  text-decoration: none;
  transition: background 0.13s ease, color 0.13s ease;
}
.nav-item:hover { background: var(--panel-2); color: var(--ink); text-decoration: none; }
.nav-item.active {
  background: var(--accent-soft); color: var(--accent); font-weight: 600;
}
.nav-item.active:hover { color: var(--accent); }
.nav-item.danger { color: var(--danger); margin-top: 6px; }
.nav-item.danger:hover { background: var(--danger-soft); color: var(--danger-hover); }

.sidebar-user {
  margin-top: auto; padding: 16px 6px 2px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px; min-width: 0;
}
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex: 0 0 32px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 0.9rem;
  background: var(--accent);
}
.user-mail {
  font-size: 0.78rem; color: var(--ink-2);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ---------- 主区页头 ---------- */
body.dash-page > .container > .page-title {
  padding: 2px 2px 16px;
}
body.dash-page > .container > .page-title h1 {
  font-size: 1.4rem; font-weight: 700; color: var(--ink); letter-spacing: 0.2px;
}
body.dash-page > .container > .page-title .page-sub {
  font-size: 0.9rem; color: var(--ink-3); margin-top: 2px;
}

/* ---------- 面板 ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-panel);
}

/* ============================================================
   首页（文件管理）
   ============================================================ */
body.dash-page.app-page .msg { margin-bottom: 16px; }

/* 上传面板 */
body.dash-page.app-page .upload-box {
  background: var(--panel);
  border: 1.5px dashed var(--line-2);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-panel);
  padding: 22px 24px; margin-bottom: 16px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
body.dash-page.app-page .upload-box:hover { border-color: var(--accent-line); }
body.dash-page.app-page .upload-box form {
  display: flex; justify-content: center; align-items: center;
  gap: 12px; flex-wrap: wrap;
}
body.dash-page.app-page .upload-box input[type="file"] {
  max-width: 330px; padding: 8px 10px;
  font-size: 0.9rem; color: var(--ink-2);
  background: var(--panel); border: 1px solid var(--line-2);
  border-radius: var(--r-ctrl); cursor: pointer;
}
body.dash-page.app-page .upload-box input[type="file"]::file-selector-button {
  margin-right: 10px; padding: 6px 14px;
  font-size: 0.85rem; font-weight: 600; color: var(--accent);
  background: var(--accent-soft); border: 1px solid var(--accent-line);
  border-radius: var(--r-ctrl); cursor: pointer;
  transition: background 0.13s ease;
}
body.dash-page.app-page .upload-box input[type="file"]::file-selector-button:hover { background: #e0e7ff; }
body.dash-page.app-page .upload-box .upload-hint {
  font-size: 0.8rem; color: var(--ink-3); margin-top: 12px; text-align: center;
}
body.dash-page.app-page .upload-box .btn { padding: 10px 24px; }

/* 工具栏 */
body.dash-page.app-page .tools {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 10px; margin-bottom: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-panel);
  padding: 12px 16px;
}
body.dash-page.app-page .tools .search-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
body.dash-page.app-page .tools input[type="text"] { width: 210px; }
body.dash-page.app-page .tools select {
  width: auto; padding: 8px 30px 8px 12px;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%),
    linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
  background-position: calc(100% - 16px) 52%, calc(100% - 11px) 52%;
  background-size: 5px 5px; background-repeat: no-repeat;
  -webkit-appearance: none; appearance: none;
  cursor: pointer; font-size: 0.88rem;
}
body.dash-page.app-page .tools .clear-link {
  color: var(--danger); font-size: 0.85rem; padding: 4px 8px;
  border-radius: var(--r-ctrl);
}
body.dash-page.app-page .tools .clear-link:hover { background: var(--danger-soft); text-decoration: none; }

/* 文件列表 */
body.dash-page.app-page .file-list {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}
body.dash-page.app-page .file-list > h3 {
  padding: 16px 22px 12px;
  font-size: 0.95rem; font-weight: 600; color: var(--ink-2);
  border-bottom: 1px solid var(--line);
}
body.dash-page.app-page .file-list > h3 b { color: var(--ink); font-weight: 700; }

/* 列标题（有文件时显示） */
body.dash-page.app-page .list-head {
  display: none; padding: 8px 22px;
  font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-3); border-bottom: 1px solid var(--line); background: var(--panel-2);
}
body.dash-page.app-page .list-head.on { display: block; }

/* 文件行 */
body.dash-page.app-page .file-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px; align-items: center;
  padding: 15px 22px;
  border-bottom: 1px solid var(--line);
  transition: background 0.13s ease;
}
body.dash-page.app-page .file-item:last-child { border-bottom: none; }
body.dash-page.app-page .file-item:hover { background: var(--panel-2); }

body.dash-page.app-page .file-info { min-width: 0; }
body.dash-page.app-page .file-info .name {
  font-size: 1rem; font-weight: 600; color: var(--ink);
  word-break: break-all; display: flex; align-items: center; gap: 8px;
}
body.dash-page.app-page .file-info .meta {
  font-size: 0.83rem; color: var(--ink-3); margin-top: 3px;
}
body.dash-page.app-page .file-info .link {
  font-size: 0.8rem; color: var(--ink-3); margin-top: 2px;
  word-break: break-all; font-family: ui-monospace, 'SF Mono', Consolas, monospace;
}
body.dash-page.app-page .file-info .link a { color: var(--accent); }
body.dash-page.app-page .file-info .link a:hover { text-decoration: underline; }

/* 类型徽章 */
.badge {
  flex: 0 0 auto;
  display: inline-block; padding: 1px 8px;
  font-size: 0.72rem; font-weight: 600; color: var(--ink-2);
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: var(--r-chip);
}

/* 行操作 */
body.dash-page.app-page .file-actions {
  display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end;
}
body.dash-page.app-page .file-actions a {
  padding: 6px 12px; font-size: 0.84rem; font-weight: 500;
  border-radius: var(--r-ctrl);
  border: 1px solid var(--line-2);
  color: var(--ink-2); background: var(--panel);
  transition: all 0.13s ease;
}
body.dash-page.app-page .file-actions a:hover {
  color: var(--accent); border-color: var(--accent-line);
  background: var(--accent-soft); text-decoration: none;
}
body.dash-page.app-page .file-actions a.del { color: var(--danger); border-color: var(--danger-line); background: var(--danger-soft); }
body.dash-page.app-page .file-actions a.del:hover { background: #ffe4e1; border-color: var(--danger-line); color: var(--danger-hover); }

/* 重命名行 */
body.dash-page.app-page .rename-form { display: none; }
body.dash-page.app-page .file-item .rename-form {
  grid-column: 1 / -1;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--r-ctrl);
  padding: 12px; margin-top: 4px;
}
body.dash-page.app-page .rename-form form {
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
}
body.dash-page.app-page .rename-form input[type="text"] { width: 240px; padding: 8px 12px; }

/* 分页 */
body.dash-page.app-page .pagination {
  display: flex; justify-content: center; gap: 6px;
  padding: 16px 20px; flex-wrap: wrap;
}
body.dash-page.app-page .pagination a, body.dash-page.app-page .pagination span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; padding: 6px 10px;
  font-size: 0.88rem; color: var(--ink-2);
  border: 1px solid var(--line-2); border-radius: var(--r-ctrl);
  background: var(--panel);
  text-decoration: none;
}
body.dash-page.app-page .pagination a:hover {
  color: var(--accent); border-color: var(--accent-line);
  background: var(--accent-soft); text-decoration: none;
}
body.dash-page.app-page .pagination a.active {
  color: #fff; background: var(--accent); border-color: var(--accent);
}

/* 空状态 */
body.dash-page.app-page .empty {
  padding: 40px 20px; text-align: center;
  color: var(--ink-3); font-size: 0.95rem;
}

/* ============================================================
   个人中心 & 修改密码 内容卡
   ============================================================ */
body.dash-page.profile-page > .container,
body.dash-page.auth-page > .container {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-panel);
  padding: 28px 30px 26px;
  animation: in 0.3s ease backwards;
}

body.dash-page.profile-page h1,
body.dash-page.auth-page h1 {
  font-size: 1.3rem; font-weight: 700; color: var(--ink);
  margin-bottom: 18px;
}

/* 统计卡 */
body.dash-page.profile-page .stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px; margin-bottom: 22px;
}
body.dash-page.profile-page .stat {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--r-panel);
  padding: 16px 18px;
}
body.dash-page.profile-page .stat .n {
  font-size: 1.5rem; font-weight: 700; color: var(--ink);
  font-variant-numeric: tabular-nums; line-height: 1.2;
}
body.dash-page.profile-page .stat .l {
  font-size: 0.8rem; color: var(--ink-3); margin-top: 2px;
}

/* 信息行 */
body.dash-page.profile-page .info-item {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; padding: 12px 2px;
  border-bottom: 1px solid var(--line);
}
body.dash-page.profile-page .info-item:last-of-type { border-bottom: none; }
body.dash-page.profile-page .info-item .label {
  font-size: 0.88rem; color: var(--ink-3); flex-shrink: 0;
}
body.dash-page.profile-page .info-item .value {
  font-size: 0.94rem; font-weight: 600; color: var(--ink);
  word-break: break-all; text-align: right;
}

/* 操作按钮 */
body.dash-page.profile-page .actions {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px;
}
body.dash-page.profile-page .back-link { display: none; }

/* 修改密码：表单留白 */
body.dash-page.auth-page form input[type="password"] { margin-bottom: 14px; }
body.dash-page.auth-page .back-link {
  display: inline-block; margin-top: 16px;
  font-size: 0.88rem; color: var(--ink-2);
}
body.dash-page.auth-page .back-link:hover { color: var(--accent); }

/* ============================================================
   上传进度浮层
   ============================================================ */
.upload-overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: none; align-items: center; justify-content: center;
  background: rgba(16, 24, 40, 0.42);
  padding: 18px;
}
.upload-modal {
  width: 100%; max-width: 380px;
  background: var(--panel);
  border-radius: var(--r-panel);
  box-shadow: var(--shadow-pop);
  padding: 26px 26px 22px;
  text-align: center;
  animation: in 0.25s ease backwards;
}
.upload-title {
  font-size: 0.95rem; font-weight: 600; color: var(--ink);
  word-break: break-all; line-height: 1.45;
}
.upload-percent {
  display: block; font-size: 2.3rem; font-weight: 700;
  margin: 12px 0 4px;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.upload-percent.done { color: var(--success); }
.upload-bar {
  height: 8px; border-radius: var(--r-ctrl);
  background: #eceef3; overflow: hidden;
}
.upload-bar-fill {
  height: 100%; width: 0%; border-radius: var(--r-ctrl);
  background: var(--accent);
  transition: width 0.15s linear;
}
.upload-bar-fill.done { background: var(--success); }
.upload-meta {
  font-size: 0.82rem; color: var(--ink-2);
  margin-top: 10px; font-variant-numeric: tabular-nums;
}
.upload-stage { font-size: 0.78rem; color: var(--ink-3); margin-top: 4px; }
.upload-stage.done { color: var(--success); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 960px) {
  body.dash-page, body.dash-page.auth-page {
    flex-direction: column; padding: 14px; gap: 12px;
  }
  .sidebar {
    position: static; width: 100%; flex: none;
    flex-direction: row; align-items: center; gap: 10px;
    padding: 12px 16px; overflow-x: auto;
  }
  .brand { padding: 0 6px 0 0; flex: 0 0 auto; }
  .brand-text { display: none; }
  .nav { flex-direction: row; gap: 4px; flex: 1 1 auto; }
  .nav-item { white-space: nowrap; padding: 7px 12px; }
  .nav-item.danger { margin: 0 0 0 auto; }
  .sidebar-user { display: none; }
  body.dash-page > .container,
  body.dash-page.profile-page > .container,
  body.dash-page.auth-page > .container { max-width: none; }
  body.dash-page.profile-page .stats { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
  body.auth-page { padding: 18px 10px; }
  body.auth-page > .container { padding: 26px 20px 24px; }
  body.dash-page, body.dash-page.auth-page { padding: 10px; }
  body.dash-page.profile-page > .container,
  body.dash-page.auth-page > .container { padding: 20px 16px 18px; }

  body.dash-page.app-page .tools { flex-direction: column; align-items: stretch; }
  body.dash-page.app-page .tools .search-form { flex-wrap: wrap; }
  body.dash-page.app-page .tools input[type="text"] { flex: 1 1 140px; }
  body.dash-page.app-page .file-item {
    grid-template-columns: 1fr;
    gap: 8px; padding: 13px 16px;
  }
  body.dash-page.app-page .file-actions { justify-content: flex-start; }
  body.dash-page.profile-page .stats { grid-template-columns: 1fr; }
  body.dash-page.profile-page .info-item { flex-direction: column; align-items: flex-start; gap: 2px; }
  body.dash-page.profile-page .info-item .value { text-align: left; }
}

/* 减少动态效果 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}