/* hidden 属性必须始终生效（否则登录层藏不住） */
[hidden] {
  display: none !important;
}

:root {
  color-scheme: light;
  --ink: #0f1b34;
  --ink-soft: #334155;
  --muted: #6b7a90;
  --line: #e7ebf2;
  --line-strong: #d4dbe6;
  --paper: #ffffff;
  --band: #f3f5f9;
  --navy: #0f1f3d;
  --accent: #1e50c8;
  --accent-ink: #163a96;
  --accent-soft: #eaf0fc;
  --amber: #9a6a12;
  --rose: #be1d4a;
  --green: #1f7a52;
  --shadow-sm: 0 1px 2px rgba(15, 27, 52, 0.05);
  --shadow-card: 0 1px 3px rgba(15, 27, 52, 0.06), 0 1px 2px rgba(15, 27, 52, 0.04);
  --shadow-pop: 0 10px 34px rgba(15, 27, 52, 0.1);
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--band);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 14px;
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, opacity 0.15s;
}

button:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
}

button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 2px rgba(30, 80, 200, 0.25);
}

button.primary:hover {
  background: var(--accent-ink);
  border-color: var(--accent-ink);
  color: #fff;
}

button.warn {
  border-color: var(--amber);
  color: #7a4a0b;
}

button:disabled {
  opacity: 0.5;
  cursor: default;
  box-shadow: none;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: #fff;
  color: var(--ink);
  padding: 9px 11px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* ---------- Shell ---------- */
.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 296px 1fr;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #fff;
  padding: 20px 18px;
  overflow: auto;
}

.sidebar .topbar {
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.main {
  padding: 26px 30px 56px;
  overflow: auto;
  max-width: 1480px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 9px;
}

.brand::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--accent), #4f7be8);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.4);
}

.userbar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.userbar-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.userbar-label {
  flex: 0 0 30px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.userbar-value {
  color: var(--navy);
  font-weight: 600;
  word-break: break-all;
}

.role-select {
  width: 150px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 22px 0 10px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.stack {
  display: grid;
  gap: 14px;
}

/* ---------- Project list ---------- */
.section-toggle {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  /* inherits .section-title flex/typography */
}

.section-toggle:hover {
  color: var(--ink);
}

.section-toggle .caret {
  font-size: 10px;
  color: var(--muted);
}

.project-item-wrap {
  position: relative;
}

.project-del {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 22px;
  height: 22px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.12s, color 0.12s, border-color 0.12s;
}

.project-item-wrap:hover .project-del,
.project-del:focus-visible {
  opacity: 1;
}

.project-del:hover {
  color: var(--danger, #c0392b);
  border-color: var(--danger, #c0392b);
}

.project-item {
  width: 100%;
  padding: 12px 13px;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  min-height: 0;
  font-weight: 500;
  cursor: pointer;
}

.project-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.stage-select {
  display: inline-block;
  width: auto;
  margin: 2px 0 0;
  padding: 1px 20px 1px 7px;
  font-size: 12px;
  font-weight: 600;
  color: var(--navy);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background-color: var(--accent-soft);
  cursor: pointer;
  vertical-align: baseline;
}

.stage-select:hover {
  border-color: var(--accent);
}

/* ---------- Interview metadata ---------- */
.interview-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.interview-meta-grid .field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.interview-meta-grid .field span {
  font-weight: 600;
}

.interview-meta-grid .meta-save {
  grid-column: 1 / -1;
}

.interview-meta-line {
  margin-top: 4px;
  color: var(--navy);
}

.interview-meta-empty {
  margin-top: 4px;
  font-style: italic;
}

.interview-edit {
  margin-top: 8px;
}

.interview-edit > summary {
  cursor: pointer;
  font-size: 12px;
  color: var(--accent);
  width: max-content;
}

.interview-edit .interview-meta-grid {
  margin-top: 8px;
}

/* ---------- Question delete (admin) ---------- */
.question-row {
  position: relative;
}

.question-row .row-title {
  padding-right: 28px;
}

.row-del {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 22px;
  height: 22px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.12s, color 0.12s, border-color 0.12s;
}

.question-row:hover .row-del,
.row-del:focus-visible {
  opacity: 1;
}

.row-del:hover {
  color: var(--danger, #c0392b);
  border-color: var(--danger, #c0392b);
}

.project-item:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.project-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.project-name {
  font-weight: 700;
  margin-bottom: 3px;
  color: var(--navy);
  padding-right: 26px;
}

.meta {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.form-grid .wide {
  grid-column: 1 / -1;
}

/* ---------- Workspace ---------- */
.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.6fr);
  gap: 18px;
  align-items: start;
}

.card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow-card);
}

.card h2,
.card h3 {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.card h2 {
  font-size: 14px;
  color: var(--navy);
  letter-spacing: 0.02em;
  text-transform: none;
}

/* Project header (above the workspace) */
.project-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, #fbfcfe);
  box-shadow: var(--shadow-card);
}

.project-head .brand {
  font-size: 21px;
}

.project-head .brand::before {
  display: none;
}

/* ---------- Steps strip ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.step {
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 11px 12px;
  box-shadow: var(--shadow-sm);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.05s;
}

.step:hover {
  border-color: var(--navy);
  box-shadow: var(--shadow-pop);
}

.step:active {
  transform: translateY(1px);
}

.step:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

@keyframes jumpFlash {
  0% { box-shadow: 0 0 0 2px var(--navy); }
  100% { box-shadow: var(--shadow-sm); }
}

.jump-flash {
  animation: jumpFlash 1.1s ease-out;
}

.step strong {
  display: block;
  font-size: 12px;
  color: var(--navy);
  font-weight: 700;
}

.step span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 5px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}

.list {
  display: grid;
  gap: 9px;
}

.row {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfcfe;
  padding: 12px 13px;
}

.row-title {
  font-weight: 700;
  margin-bottom: 5px;
  color: var(--navy);
}

.deck-preview-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: #fff;
}

a.download-cta {
  display: inline-block;
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 1px 2px rgba(30, 80, 200, 0.25);
  transition: background 0.15s;
}

a.download-cta:hover {
  background: var(--accent-ink);
}

button.danger-link {
  min-height: 0;
  margin-top: 8px;
  padding: 3px 11px;
  font-size: 12px;
  font-weight: 600;
  background: none;
  border: 1px solid #e4bcc6;
  color: var(--rose);
  border-radius: 7px;
  width: auto;
}

button.danger-link:hover {
  background: #fdf0f3;
  border-color: var(--rose);
  color: var(--rose);
}

/* 在头部/操作行内的删除按钮不要顶部外边距，避免与同行按钮错位 */
.actions button.danger-link {
  margin-top: 0;
}

/* ---------- Pills / badges ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: #fff;
}

.pill.high,
.pill.高 {
  border-color: #f0bcc8;
  background: #fdeef1;
  color: var(--rose);
}

.pill.medium,
.pill.中 {
  border-color: #ecd092;
  background: #fbf3df;
  color: var(--amber);
}

.pill.normal,
.pill.低,
.pill.ok {
  border-color: #b6dcc9;
  background: #eef7f2;
  color: var(--green);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.pw-block {
  margin: 4px 0;
}

.pw-block summary {
  cursor: pointer;
  color: var(--muted);
}

.pw-block .grid-3 {
  margin-top: 8px;
}

.admin-template-panel {
  border-color: var(--line-strong);
  background: linear-gradient(180deg, #fbfcff, #fff);
}

.admin-template-panel > summary {
  font-weight: 700;
  color: var(--navy);
}

/* ---------- Table ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.table th,
.table td {
  border-bottom: 1px solid var(--line);
  padding: 8px 7px;
  text-align: left;
  vertical-align: top;
}

.table th {
  color: var(--muted);
  font-weight: 700;
  font-size: 12px;
}

/* ---------- Notices ---------- */
.notice {
  border: 1px solid #e7cf8b;
  background: #fff8e6;
  color: #6f4a00;
  border-radius: 10px;
  padding: 11px 13px;
  margin-bottom: 14px;
  font-size: 13px;
}

.error {
  border-color: #f2b8c2;
  background: #fff1f4;
  color: #8f1832;
}

/* ---------- Login ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(1200px 600px at 50% -10%, #e9eef9, var(--band));
}

.login-card {
  width: 100%;
  max-width: 380px;
  display: grid;
  gap: 13px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  padding: 30px 28px;
  box-shadow: var(--shadow-pop);
}

.login-card .brand {
  justify-content: center;
  font-size: 20px;
}

.login-card .meta {
  text-align: center;
  margin-bottom: 4px;
}

.login-field {
  display: grid;
  gap: 5px;
  font-size: 13px;
  color: var(--muted);
}

.login-notice {
  border: 1px solid #e7cf8b;
  background: #fff8e6;
  color: #704a00;
  border-radius: 9px;
  padding: 9px 11px;
  font-size: 13px;
}

.login-notice.error {
  border-color: #f2b8c2;
  background: #fff1f4;
  color: #8f1832;
}

/* ---------- Dropzone ---------- */
.dropzone {
  display: block;
  border: 1.5px dashed var(--line-strong);
  border-radius: 11px;
  padding: 20px 14px;
  text-align: center;
  cursor: pointer;
  background: var(--band);
  transition: border-color 0.15s, background 0.15s;
}

.dropzone:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dropzone.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dropzone-hint {
  color: var(--muted);
  font-size: 13px;
}

.dropzone-files {
  margin-top: 8px;
  word-break: break-all;
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .shell,
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .main,
  .sidebar {
    padding: 16px;
  }

  .form-grid,
  .grid-2,
  .grid-3,
  .steps {
    grid-template-columns: 1fr;
  }

  .project-head,
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}