:root {
  --bg: #f4f1ea;
  --bg-card: #fffcf7;
  --ink: #1c1917;
  --muted: #57534e;
  --border: #e7e0d4;
  --accent: #1e4d6b;
  --accent-hover: #163a52;
  --accent-soft: #e8f1f6;
  --success: #166534;
  --warn: #b45309;
  --danger: #b91c1c;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(28, 25, 23, 0.06);
  font-family: "Source Sans 3", system-ui, sans-serif;
  color: var(--ink);
  line-height: 1.5;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(ellipse at top, #faf7f0 0%, var(--bg) 55%);
}

h1,
h2,
h3 {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.brand {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.brand-mark {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-family: "Noto Serif SC", serif;
  font-size: 1.35rem;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice {
  background: #fff8eb;
  border: 1px solid #fcd34d;
  color: #92400e;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.landing-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 2rem 2.5rem;
  align-items: start;
}

@media (max-width: 900px) {
  .landing-layout {
    grid-template-columns: 1fr;
  }

  .auth-card {
    margin: 0 auto;
  }
}

.intro-panel {
  padding: 0.25rem 0.5rem 0.5rem 0;
}

.intro-eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.intro-title {
  font-size: clamp(1.45rem, 3vw, 1.85rem);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.intro-lead {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 1rem;
  max-width: 36rem;
}

.intro-features {
  margin: 0 0 1.35rem;
  padding-left: 1.15rem;
  color: var(--ink);
  font-size: 0.95rem;
}

.intro-features li {
  margin-bottom: 0.55rem;
}

.intro-features strong {
  color: var(--accent);
}

.promo-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.promo-pill {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fcd34d;
}

.promo-pill.accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: #b8d4e3;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.auth-card {
  width: 420px;
  max-width: 100%;
  box-sizing: border-box;
}

.invite-block {
  margin: 1rem 0 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.invite-block h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.copy-row {
  display: flex;
  gap: 0.35rem;
  align-items: stretch;
}

.copy-row input {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
}

.invite-code-list {
  list-style: none;
  margin: 0.35rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.invite-code-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-family: ui-monospace, monospace;
  font-size: 0.82rem;
  padding: 0.4rem 0.55rem;
  background: var(--accent-soft);
  border-radius: 8px;
}

.app-panel {
  display: grid;
  grid-template-columns: minmax(240px, 280px) 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 860px) {
  .app-panel {
    grid-template-columns: 1fr;
  }
}

.tasks-card {
  grid-column: 1 / -1;
}

.hidden {
  display: none !important;
}

.tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.tab {
  border: none;
  background: transparent;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
  color: var(--muted);
}

.tab.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.field-hint {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--muted);
  margin-top: 0.15rem;
}

input,
textarea {
  font: inherit;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

input:focus,
textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 6rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 1rem 0;
}

.auth-form,
.task-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

@media (max-width: 560px) {
  .row-2 {
    grid-template-columns: 1fr;
  }
}

.btn {
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--accent-hover);
}

.btn.primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn.secondary {
  background: var(--accent-soft);
  color: var(--accent);
}

.btn.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn.small {
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
}

.message {
  min-height: 1.25rem;
  font-size: 0.9rem;
  margin: 0.5rem 0 0;
}

.message.error {
  color: var(--danger);
}

.message.success {
  color: var(--success);
}

.quota-dl {
  margin: 0 0 0.5rem;
}

.quota-dl div {
  display: flex;
  justify-content: space-between;
  padding: 0.35rem 0;
  border-bottom: 1px dashed var(--border);
}

.quota-dl dt {
  color: var(--muted);
  font-weight: 500;
}

.quota-dl dd {
  margin: 0;
  font-weight: 600;
}

.quota-badge {
  display: inline-block;
  min-width: 1.5rem;
  text-align: center;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.1rem 0.45rem;
  border-radius: 6px;
}

.muted {
  color: var(--muted);
  font-size: 0.88rem;
}

.queue-stats {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.queue-stats h3 {
  font-size: 0.95rem;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.active-task {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--accent-soft);
  border-radius: 8px;
}

.active-task.is-terminal .progress-bar,
.active-task.is-terminal .active-hint {
  display: none;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

.mono {
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  word-break: break-all;
}

.status-pill {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.status-pill.pending {
  background: #fef3c7;
  color: var(--warn);
}

.status-pill.processing {
  background: #dbeafe;
  color: #1d4ed8;
}

.status-pill.completed {
  background: #dcfce7;
  color: var(--success);
}

.status-pill.failed {
  background: #fee2e2;
  color: var(--danger);
}

.progress-bar {
  height: 4px;
  background: rgba(30, 77, 107, 0.15);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar span {
  display: block;
  height: 100%;
  width: 40%;
  background: var(--accent);
  border-radius: 4px;
  animation: indeterminate 1.2s ease-in-out infinite;
}

@keyframes indeterminate {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(350%);
  }
}

.result-panel {
  margin-top: 1.25rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.result-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.ref-upload-block {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ref-upload-block h3 {
  font-size: 0.95rem;
  margin: 0;
}

.btn.small {
  padding: 0.35rem 0.65rem;
  font-size: 0.85rem;
  align-self: flex-start;
}

#resultText {
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 420px;
  overflow: auto;
  background: #fafaf9;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin: 0;
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 0.92rem;
  line-height: 1.65;
}

.tasks-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.task-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem 1rem;
  align-items: center;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.task-item-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
}

.task-item-time {
  font-size: 0.78rem;
  white-space: nowrap;
}

.task-item-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--border);
  margin-top: 0.15rem;
}

.task-item-actions .btn {
  cursor: pointer;
}

.task-item:hover {
  border-color: var(--accent);
  background: #fefefe;
}

.task-item.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.task-item-type {
  font-size: 0.8rem;
  color: var(--muted);
}

.task-item-id {
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--ink);
}

.footer {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.82rem;
  color: var(--muted);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.link-muted {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.link-muted:hover {
  color: var(--accent);
}

.admin-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.admin-page .card + .card {
  margin-top: 1rem;
}

select {
  font: inherit;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.55rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  color: var(--muted);
  font-weight: 600;
}

.data-table code {
  font-family: ui-monospace, monospace;
  font-size: 0.82rem;
}

.tag-free {
  color: var(--success);
  font-weight: 600;
}

.tag-used {
  color: var(--muted);
}

.codes-pre {
  background: #fafaf9;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  overflow: auto;
  max-height: 200px;
}

.new-codes {
  margin-top: 1rem;
}

.token-summary {
  margin: 0 0 0.75rem;
  font-size: 0.88rem;
}

.task-item-tokens {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
}

.usage-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.usage-card {
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
}

.usage-card dt {
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0;
}

.usage-card dd {
  margin: 0.2rem 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}