/* ============================================================
   烛龙智元 · DragonAI — 文件中转站 UI
   设计语言:浅色单色(品牌红 + ink 灰阶 + paper)、衬线标题、等宽数据、
   细发际线、2px 直角、红色强调条、橙色聚焦环。Tokens 见 da-tokens.css。
   ============================================================ */

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }

/* lucide 图标基线 */
svg.lucide { stroke-width: 1.75; vertical-align: middle; flex-shrink: 0; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 32px; background: var(--da-paper);
  border-bottom: 1px solid var(--da-line);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 38px; height: 38px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-zh { font-family: var(--da-font-serif); font-weight: 900; font-size: 19px; letter-spacing: 0.04em; color: var(--da-ink); }
.brand-en { font-family: "Inter", var(--da-font-sans); font-size: 10px; letter-spacing: 0.28em; color: var(--da-red-600); font-weight: 600; margin-top: 5px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

/* ---------- 按钮(da-btn 体系) ---------- */
.da-btn {
  font-family: var(--da-font-han); font-weight: 500; font-size: 13.5px;
  padding: 9px 16px; border: 1px solid transparent; border-radius: var(--da-r-1);
  cursor: pointer; display: inline-flex; align-items: center; gap: 7px; line-height: 1;
  background: transparent; color: var(--da-ink-1);
  transition: background var(--da-dur-base) var(--da-ease-sharp), color var(--da-dur-base) var(--da-ease-sharp), border-color var(--da-dur-base) var(--da-ease-sharp);
}
.da-btn .lucide { width: 15px; height: 15px; }
.da-btn.primary { background: var(--da-red-600); color: var(--da-fg-onRed); box-shadow: 0 6px 18px -8px rgba(168,32,26,0.45); }
.da-btn.primary:hover { background: var(--da-red-800); }
.da-btn.primary:active { transform: translateY(1px); }
.da-btn.secondary { border-color: var(--da-ink-1); color: var(--da-ink-1); }
.da-btn.secondary:hover { background: var(--da-ink-1); color: var(--da-bg); }
.da-btn.ghost { color: var(--da-ink-2); }
.da-btn.ghost:hover { background: var(--da-bg-2); color: var(--da-ink-1); }
.da-btn:disabled { opacity: 0.4; cursor: not-allowed; box-shadow: none; }
.da-btn:disabled:hover { background: transparent; color: var(--da-ink-2); }
.btn-block { width: 100%; justify-content: center; padding: 12px; font-size: 14.5px; }

.btn-mini {
  font-family: var(--da-font-han); font-size: 12px; padding: 5px 10px;
  border: 1px solid var(--da-line); background: var(--da-paper); color: var(--da-ink-2);
  border-radius: var(--da-r-1); cursor: pointer; transition: all var(--da-dur-fast) var(--da-ease-sharp);
}
.btn-mini:hover { border-color: var(--da-ink-2); color: var(--da-ink-1); }

/* 行内链接式操作按钮 */
.btn-link {
  appearance: none; background: none; border: none; padding: 2px 4px;
  font-family: var(--da-font-han); font-size: 12.5px; color: var(--da-ink-2);
  cursor: pointer; border-radius: var(--da-r-1);
  transition: color var(--da-dur-fast) var(--da-ease-sharp), background var(--da-dur-fast) var(--da-ease-sharp);
}
.btn-link:hover { color: var(--da-red-600); }
.btn-link.danger:hover { color: var(--da-red-600); background: var(--da-red-050); }

:focus-visible { outline: 2px solid var(--da-orange-600); outline-offset: 2px; }

/* ---------- 主区域 ---------- */
.container { max-width: var(--da-page-max); margin: 0 auto; padding: 36px 40px 96px; }

.page-head { margin-bottom: 24px; }
.page-eyebrow { font-family: "Inter", var(--da-font-sans); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--da-red-600); font-weight: 600; display: block; }
.page-title { font-family: var(--da-font-serif); font-weight: 700; font-size: 40px; letter-spacing: -0.02em; line-height: 1.1; color: var(--da-ink); margin: 8px 0 0; }

/* ---------- 登录 ---------- */
.login-wrap { display: flex; justify-content: center; padding-top: 64px; }
.login-card {
  width: 100%; max-width: 380px; background: var(--da-paper);
  border: 1px solid var(--da-line); border-top: 2px solid var(--da-red-600);
  border-radius: var(--da-r-2); padding: 40px 36px 32px;
  box-shadow: var(--da-shadow-2);
}
.login-card .da-accent-bar { margin-bottom: 18px; }
.login-title { font-family: var(--da-font-serif); font-weight: 700; font-size: 30px; letter-spacing: -0.02em; color: var(--da-ink); margin: 0 0 6px; }
.login-sub { font-family: var(--da-font-han); font-size: 13px; color: var(--da-ink-3); margin: 0 0 24px; }
.login-error { margin-top: 14px; font-size: 13px; color: var(--da-red-600); font-family: var(--da-font-han); }

/* ---------- 表单字段 ---------- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.field label { font-family: var(--da-font-han); font-size: 12px; font-weight: 500; color: var(--da-ink-2); }
.input, .field input, .field textarea {
  font-family: var(--da-font-sans); font-size: 14px; padding: 11px 12px;
  border: 1px solid var(--da-line); background: var(--da-paper); border-radius: var(--da-r-1);
  color: var(--da-ink-1); outline: none; width: 100%;
  transition: border-color var(--da-dur-fast), box-shadow var(--da-dur-fast);
}
.input:focus, .field input:focus, .field textarea:focus {
  border-color: var(--da-red-600); box-shadow: 0 0 0 2px rgba(233,78,27,0.20);
}

/* ---------- 工具栏 + 面包屑 ---------- */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; font-family: var(--da-font-han); font-size: 13px; }
.crumb {
  appearance: none; background: none; border: none; cursor: pointer;
  font-family: var(--da-font-han); font-size: 13px; color: var(--da-ink-3);
  padding: 2px 4px; border-radius: var(--da-r-1);
}
.crumb:hover { color: var(--da-red-600); }
.crumb.current { color: var(--da-ink-1); font-weight: 600; cursor: default; }
.crumb-sep { margin: 0 4px; color: var(--da-ink-4); }
.toolbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ---------- 拖拽上传区 ---------- */
.dropzone {
  border: 1px dashed var(--da-ink-4); border-radius: var(--da-r-2);
  background: var(--da-grid); padding: 28px; margin-bottom: 18px; cursor: pointer;
  transition: border-color var(--da-dur-base) var(--da-ease-sharp), background var(--da-dur-base);
}
.dropzone:hover { border-color: var(--da-red-600); }
.dropzone.dragover { border-color: var(--da-red-600); border-style: solid; background: var(--da-grid-warm); }
.dropzone-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; pointer-events: none; }
.dropzone-icon.lucide, .dropzone-icon { width: 30px !important; height: 30px !important; color: var(--da-red-600); stroke-width: 1.5; }
.dropzone-text { font-family: var(--da-font-han); font-size: 14px; color: var(--da-ink-1); font-weight: 500; }
.dropzone-hint { font-family: var(--da-font-mono); font-size: 11px; color: var(--da-ink-3); letter-spacing: 0.02em; }

/* ---------- 列表面板 ---------- */
.panel { background: var(--da-paper); border: 1px solid var(--da-line); border-radius: var(--da-r-2); overflow: hidden; }
.table-wrap { width: 100%; }
.file-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.file-table th {
  text-align: left; padding: 12px 20px; font-family: var(--da-font-han);
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--da-ink-3); border-bottom: 1px solid var(--da-line); background: var(--da-bg-2);
}
.file-table td { padding: 13px 20px; border-bottom: 1px solid var(--da-line); color: var(--da-ink-1); vertical-align: middle; }
.file-table tbody tr { transition: background var(--da-dur-fast); }
.file-table tbody tr:hover td { background: var(--da-bg); }
.file-table tbody tr.selected td { background: var(--da-red-050); }
.file-table tbody tr:last-child td { border-bottom: 0; }
.col-check { width: 44px; }
.col-name { min-width: 220px; }
.col-size { width: 120px; }
.col-time { width: 160px; }
.col-ops { width: 180px; }
.col-size, .col-time { font-family: var(--da-font-mono); font-size: 12.5px; color: var(--da-ink-2); }
th.col-size, th.col-time { font-family: var(--da-font-han); }

input[type="checkbox"] { accent-color: var(--da-red-600); width: 15px; height: 15px; cursor: pointer; }

.name-cell { display: flex; align-items: center; gap: 10px; min-width: 0; }
.name-icon { display: inline-flex; align-items: center; color: var(--da-ink-2); }
.name-icon .lucide { width: 18px; height: 18px; }
.row-folder .name-icon { color: var(--da-red-600); }
.name-link {
  appearance: none; background: none; border: none; cursor: pointer; padding: 0;
  font-family: var(--da-font-han); font-size: 14px; color: var(--da-ink-1); text-align: left;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 46ch;
  transition: color var(--da-dur-fast) var(--da-ease-sharp);
}
.name-link:hover { color: var(--da-red-600); }
.name-link.folder { font-weight: 600; }
.row-ops { display: flex; gap: 4px; }

.empty-state { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 56px 20px; color: var(--da-ink-3); font-family: var(--da-font-han); font-size: 13.5px; }
.empty-mark { display: inline-flex; width: 52px; height: 52px; background: var(--da-bg-2); align-items: center; justify-content: center; border-radius: var(--da-r-2); }
.empty-mark .lucide { width: 22px; height: 22px; color: var(--da-red-600); }
.list-loading { padding: 28px; text-align: center; color: var(--da-ink-3); font-family: var(--da-font-mono); font-size: 12px; }
.load-more-wrap { padding: 16px; text-align: center; border-top: 1px solid var(--da-line); }

/* ---------- 上传任务面板 ---------- */
.uploads-panel {
  position: fixed; right: 24px; bottom: 24px; width: 380px; max-height: 70vh;
  display: flex; flex-direction: column; background: var(--da-paper);
  border: 1px solid var(--da-line); border-top: 2px solid var(--da-red-600);
  border-radius: var(--da-r-2); box-shadow: var(--da-shadow-3); z-index: 40; overflow: hidden;
}
.uploads-panel.collapsed .uploads-body { display: none; }
.uploads-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--da-line); background: var(--da-bg-2); }
.uploads-title { display: inline-flex; align-items: center; gap: 8px; font-family: var(--da-font-han); font-weight: 600; font-size: 14px; color: var(--da-ink-1); }
.uploads-title .lucide { width: 16px; height: 16px; color: var(--da-red-600); }
.net-status { display: inline-flex; align-items: center; gap: 6px; font-family: var(--da-font-mono); font-size: 11px; font-weight: 500; margin-left: 4px; }
.net-status.online { color: var(--da-ink-2); }
.net-status.offline { color: var(--da-red-600); }
.net-status.offline .da-live { animation: none; background: var(--da-red-600); box-shadow: none; }
.uploads-head-actions { display: flex; gap: 6px; margin-left: auto; }
.uploads-body { overflow-y: auto; padding: 8px; }

.upload-item { padding: 12px; border: 1px solid var(--da-line); border-radius: var(--da-r-1); margin-bottom: 8px; background: var(--da-paper); }
.upload-item:last-child { margin-bottom: 0; }
.upload-item.done { border-color: var(--da-line); background: var(--da-bg-2); }
.upload-item.error { border-color: var(--da-red-600); background: var(--da-red-050); }
.upload-item.paused { background: var(--da-bg-2); }
.upload-item-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.upload-name { font-family: var(--da-font-han); font-size: 13px; color: var(--da-ink-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upload-ctrls { display: flex; gap: 4px; flex-shrink: 0; }
.upload-btn {
  appearance: none; background: none; border: 1px solid var(--da-line); color: var(--da-ink-2);
  cursor: pointer; font-family: var(--da-font-han); font-size: 12px; padding: 3px 8px;
  border-radius: var(--da-r-1); white-space: nowrap;
  transition: background var(--da-dur-fast), color var(--da-dur-fast), border-color var(--da-dur-fast);
}
.upload-btn:hover { background: var(--da-bg-2); color: var(--da-ink-1); }
.upload-btn.primary { color: var(--da-red-600); border-color: var(--da-red-600); }
.upload-btn.primary:hover { background: var(--da-red-050); }
.upload-btn.danger:hover { background: var(--da-red-050); color: var(--da-red-600); border-color: var(--da-red-600); }

.progress { height: 6px; background: var(--da-bg-3); border-radius: var(--da-r-1); overflow: hidden; }
.progress-bar { height: 100%; width: 0; background: var(--da-red-600); border-radius: var(--da-r-1); transition: width var(--da-dur-base) var(--da-ease-sharp); }
.upload-item.done .progress-bar { background: var(--da-ink-2); }
.upload-meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 7px; }
.upload-status { font-family: var(--da-font-mono); font-size: 12px; font-weight: 500; color: var(--da-ink-1); }
.upload-status.done { color: var(--da-ink-2); }
.upload-status.error { color: var(--da-red-600); }
.upload-status.canceled { color: var(--da-ink-3); }
.upload-status.paused { color: var(--da-orange-600); }
.upload-detail { font-family: var(--da-font-mono); font-size: 11px; color: var(--da-ink-3); text-align: right; }

/* ---------- Toast ---------- */
.toast-stack { position: fixed; top: 76px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  background: var(--da-ink-1); color: var(--da-bg); padding: 10px 18px; border-radius: var(--da-r-2);
  font-family: var(--da-font-han); font-size: 13px; box-shadow: var(--da-shadow-2);
  border-left: 3px solid var(--da-ink-3); animation: toastIn var(--da-dur-base) var(--da-ease-sharp);
}
.toast.success { border-left-color: var(--da-red-600); }
.toast.error { background: var(--da-red-700); border-left-color: var(--da-orange-400); }
.toast.warn { border-left-color: var(--da-orange-600); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- 模态框 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(43,43,43,0.42); z-index: 100; display: flex; align-items: center; justify-content: center; }
.modal { width: 100%; max-width: 420px; background: var(--da-paper); border: 1px solid var(--da-line); border-top: 2px solid var(--da-red-600); border-radius: var(--da-r-2); padding: 28px 28px 22px; box-shadow: var(--da-shadow-3); }
.modal .da-accent-bar { margin-bottom: 14px; }
.modal-title { font-family: var(--da-font-serif); font-weight: 700; font-size: 22px; color: var(--da-ink); margin-bottom: 12px; }
.modal-body { font-family: var(--da-font-han); font-size: 14px; color: var(--da-ink-2); line-height: 1.6; }
.modal-body .input { margin-top: 12px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .container { padding: 24px 16px 96px; }
  .uploads-panel { right: 12px; left: 12px; width: auto; bottom: 12px; }
  .col-time { display: none; }
  .page-title { font-size: 30px; }
}