:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #6d7485;
  --faint: #9aa3b7;
  --page: #eef3fb;
  --glass: rgba(255, 255, 255, 0.68);
  --glass-strong: rgba(255, 255, 255, 0.88);
  --line: rgba(104, 120, 150, 0.2);
  --line-strong: rgba(88, 108, 145, 0.32);
  --blue: #3178ff;
  --blue-deep: #1557d6;
  --cyan: #2ecde3;
  --mint: #46d7a5;
  --amber: #ffb84d;
  --red: #ff6b6b;
  --shadow: 0 26px 80px rgba(37, 57, 91, 0.18);
  --soft-shadow: 0 14px 36px rgba(37, 57, 91, 0.12);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  font-family: "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  background:
    radial-gradient(circle at 10% -8%, rgba(49, 120, 255, 0.3), transparent 28%),
    radial-gradient(circle at 88% 4%, rgba(46, 205, 227, 0.26), transparent 28%),
    radial-gradient(circle at 18% 92%, rgba(255, 184, 77, 0.22), transparent 32%),
    linear-gradient(135deg, #f7faff 0%, #edf4ff 46%, #f9fbff 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255,255,255,0.62), transparent 40%),
    radial-gradient(circle at 50% 18%, rgba(255,255,255,0.55), transparent 34%);
  opacity: 0.9;
}

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

button {
  border: 0;
  border-radius: 999px;
  padding: 13px 19px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--blue-deep));
  box-shadow: 0 14px 30px rgba(49, 120, 255, 0.26);
  cursor: pointer;
  font-weight: 900;
  white-space: nowrap;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

button:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
  box-shadow: 0 18px 36px rgba(49, 120, 255, 0.32);
}

button:active {
  transform: translateY(0);
}

button.secondary,
.danger-action,
.segment,
.nav-item,
.mobile-nav-item {
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: inset 0 0 0 1px var(--line);
}

.glass-panel,
.hero-panel,
.glass-card {
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(145deg, rgba(255,255,255,0.9), rgba(255,255,255,0.56)),
    var(--glass);
  box-shadow: var(--shadow);
  backdrop-filter: blur(26px) saturate(150%);
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 22px;
  width: min(1480px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 26px 0 64px;
}

.sidebar {
  position: sticky;
  top: 26px;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 52px);
  padding: 22px;
}

.brand-block h1 {
  margin: 0 0 12px;
  line-height: 0.95;
  letter-spacing: -0.065em;
  font-size: 42px;
}

.brand-block p:last-child,
.sidebar-foot {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.side-nav {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.nav-item,
.mobile-nav-item {
  width: 100%;
  padding: 13px 15px;
  color: var(--ink);
  text-align: left;
  box-shadow: none;
}

.nav-item.active,
.mobile-nav-item.active {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 14px 30px rgba(49, 120, 255, 0.24);
}

.sidebar-foot {
  margin-top: auto;
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.56);
}

.content-shell {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 26px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 18px 22px;
}

.topbar h2,
.hero-panel h2,
.glass-card h3 {
  margin: 0;
  letter-spacing: -0.04em;
}

.topbar h2 {
  font-size: 28px;
}

.status-pill,
.count-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: var(--blue-deep);
  background: rgba(49, 120, 255, 0.12);
  font-weight: 900;
}

.status-pill {
  padding: 9px 14px;
  white-space: nowrap;
}

.count-pill {
  min-width: 34px;
  padding: 4px 10px;
  font-size: 15px;
}

.page-view {
  display: none;
  animation: pageIn 240ms ease both;
}

.page-view.active {
  display: block;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-panel {
  position: relative;
  overflow: hidden;
  margin-bottom: 18px;
  padding: 32px;
}

.hero-panel::after {
  content: "";
  position: absolute;
  right: -58px;
  top: -78px;
  width: 260px;
  height: 260px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(49, 120, 255, 0.36), rgba(46, 205, 227, 0.12) 58%, transparent 60%);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.hero-panel h2 {
  font-size: clamp(40px, 7vw, 76px);
  line-height: 0.94;
}

.hero-text {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.glass-card {
  margin-bottom: 18px;
  padding: 24px;
}

.mini-card {
  margin-bottom: 0;
}

.layout-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
  gap: 18px;
  align-items: start;
}

.stat-grid,
.device-grid,
.system-grid,
.exam-current-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.stat-card,
.device-card,
.system-card,
.exam-current-card,
.exam-card,
.soft-item {
  border: 1px solid rgba(255,255,255,0.76);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(18px) saturate(140%);
}

.stat-card {
  display: grid;
  gap: 10px;
  padding: 20px;
}

.stat-card span,
.system-card span,
.device-card span,
.exam-current-card span,
.exam-card span,
.soft-item span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.stat-card strong {
  font-size: clamp(24px, 3vw, 36px);
  letter-spacing: -0.04em;
}

.stat-card p,
.device-card p,
.system-card p,
.exam-current-card p,
.exam-card p,
.soft-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.section-heading,
.record-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.record-actions {
  flex-wrap: wrap;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.muted,
.compact-text {
  color: var(--muted);
}

.compact-text {
  margin: 10px 0 0;
  font-size: 14px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

label {
  display: grid;
  gap: 7px;
}

label span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  outline: none;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.7);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease,
    transform 160ms ease;
}

input,
select {
  height: 50px;
  padding: 0 15px;
}

textarea {
  min-height: 104px;
  padding: 14px 15px;
  line-height: 1.6;
  resize: vertical;
}

button:disabled {
  cursor: wait;
  filter: grayscale(0.25);
  opacity: 0.66;
  transform: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(49, 120, 255, 0.56);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 0 5px rgba(49, 120, 255, 0.13);
  transform: translateY(-1px);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.role-type-field,
.sequence-field {
  margin-bottom: 14px;
}

.token-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-top: 16px;
}

.toggle-field {
  display: inline-flex;
  align-items: center;
  grid-template-columns: none;
  gap: 10px;
  margin: 2px 0 16px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
}

.toggle-field input {
  width: 18px;
  height: 18px;
  accent-color: var(--blue);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

.exam-admin-grid {
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
}

.student-fields.is-hidden,
.sequence-field.is-hidden {
  display: none;
}

.role-question-card {
  max-height: calc(100vh - 132px);
  overflow: auto;
}

.segmented-control {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(84px, 1fr));
  gap: 4px;
  padding: 5px;
  border: 1px solid rgba(255,255,255,0.72);
  border-radius: 999px;
  background: rgba(230, 238, 252, 0.72);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.72);
}

.segment {
  padding: 10px 14px;
  box-shadow: none;
}

.segment.active {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 10px 22px rgba(49, 120, 255, 0.24);
}

.question-list,
.send-record-list,
.device-record-list,
.soft-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.question-list {
  max-height: 560px;
  overflow: auto;
  padding-right: 6px;
}

.send-record-list,
.soft-list {
  margin-top: 18px;
}

.device-record-list {
  margin-top: 12px;
}

.question-item,
.send-record-item,
.device-record-group {
  position: relative;
  border: 1px solid rgba(255,255,255,0.76);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(18px) saturate(140%);
}

.question-item,
.send-record-item {
  padding: 14px 15px 14px 18px;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.question-item::before,
.send-record-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}

.send-record-item::before {
  background: linear-gradient(180deg, var(--amber), var(--mint));
}

.question-item:hover,
.send-record-item:hover {
  transform: translateX(2px);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.86);
}

.question-item p,
.send-record-item p {
  margin-bottom: 9px;
  font-weight: 780;
  line-height: 1.58;
}

.send-record-item.compact {
  box-shadow: none;
}

.question-item.empty,
.send-record-item.empty,
.soft-item.empty {
  color: var(--muted);
}

.question-item.empty::before,
.send-record-item.empty::before {
  display: none;
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 2px;
}

.question-meta span,
.card-meta span {
  padding: 5px 9px;
  border-radius: 999px;
  color: #27527d;
  background: rgba(49, 120, 255, 0.1);
  font-size: 12px;
  font-weight: 850;
}

.availability-pill.ready {
  color: #147451;
  background: rgba(70, 215, 165, 0.18);
}

.availability-pill.waiting {
  color: #9a5d00;
  background: rgba(255, 184, 77, 0.2);
}

.device-record-group {
  padding: 0;
}

.device-record-group summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  font-weight: 900;
}

.device-summary {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.device-record-group details[open] {
  padding-bottom: 16px;
}

.device-record-list {
  padding: 0 16px;
}

.device-card,
.system-card,
.exam-current-card,
.exam-card,
.soft-item {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.device-card strong,
.system-card strong,
.exam-current-card strong,
.exam-card strong,
.soft-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.exam-current-card.ok {
  border-color: rgba(70, 215, 165, 0.34);
}

.exam-current-card.muted-card {
  opacity: 0.76;
}

.exam-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.exam-card.enabled {
  border-color: rgba(49, 120, 255, 0.28);
}

.exam-card.disabled {
  opacity: 0.72;
}

.exam-card-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.exam-template {
  font-family: "SF Mono", "Cascadia Code", "Consolas", monospace;
}

.exam-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.template-admin-grid {
  grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
}

.template-editor-grid {
  grid-template-columns: 300px minmax(0, 1fr);
}

.template-actions,
.template-card-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.template-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.template-summary-pill {
  display: grid;
  gap: 4px;
  padding: 13px;
  border: 1px solid rgba(255,255,255,0.72);
  border-radius: var(--radius-md);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.58);
  font-size: 12px;
  font-weight: 850;
}

.template-summary-pill strong {
  color: var(--ink);
  font-size: 20px;
}

.template-chain-list,
.template-variant-list {
  display: grid;
  gap: 12px;
}

.template-chain-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  color: var(--ink);
  text-align: left;
  background: rgba(255, 255, 255, 0.66);
  box-shadow: inset 0 0 0 1px var(--line);
}

.template-chain-button.active {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 14px 30px rgba(49, 120, 255, 0.22);
}

.template-chain-button span {
  font-weight: 900;
}

.template-chain-button strong {
  white-space: nowrap;
}

.template-variant-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.76);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(18px) saturate(140%);
}

.template-variant-card.empty {
  color: var(--muted);
}

.template-variant-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.template-variant-head span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}

.template-variant-head strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

.compact-toggle {
  margin: 0;
  padding: 8px 12px;
}

.template-chain-panel {
  position: sticky;
  top: 120px;
}

.small-action {
  padding: 10px 13px;
  font-size: 13px;
}

.danger-action {
  color: #b83333;
  box-shadow: inset 0 0 0 1px rgba(255, 107, 107, 0.32);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.system-card.ok {
  border-color: rgba(70, 215, 165, 0.34);
}

.system-card.warn {
  border-color: rgba(255, 184, 77, 0.48);
}

.mobile-nav {
  display: none;
}

@media (max-width: 1120px) {
  .app-shell {
    grid-template-columns: 230px minmax(0, 1fr);
  }

  .stat-grid,
  .device-grid,
  .system-grid,
  .exam-current-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  body {
    padding-bottom: 88px;
  }

  .app-shell {
    display: block;
    width: min(100% - 22px, 720px);
    padding: 16px 0 96px;
  }

  .sidebar {
    display: none;
  }

  .topbar {
    top: 12px;
    border-radius: var(--radius-lg);
  }

  .layout-grid,
  .stat-grid,
  .device-grid,
  .system-grid,
  .exam-current-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .token-row,
  .exam-card-main {
    grid-template-columns: 1fr;
  }

  .exam-card-main {
    display: grid;
  }

  .exam-actions {
    justify-content: flex-start;
  }

  .template-chain-panel {
    position: static;
  }

  .template-actions,
  .template-card-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .hero-panel h2 {
    font-size: 44px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .record-actions {
    width: 100%;
  }

  .segmented-control {
    width: 100%;
  }

  .mobile-nav {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: 10px;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 5px;
    padding: 6px;
    border-radius: 999px;
  }

  .mobile-nav-item {
    padding: 10px 4px;
    text-align: center;
    font-size: 12px;
    box-shadow: none;
  }
}

@media (max-width: 520px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-panel,
  .glass-card {
    padding: 20px;
    border-radius: 24px;
  }

  .hero-panel h2 {
    font-size: 38px;
  }

  .mobile-nav {
    border-radius: 26px;
    grid-template-columns: repeat(4, 1fr);
  }
}