:root {
  --bg: #f3f6f4;
  --panel: #ffffff;
  --ink: #1f2a24;
  --muted: #5f6f66;
  --accent: #1f6f5b;
  --border: #d7e0db;
  --alert: #8a2f2f;
  --alert-bg: #f8eaea;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(31, 111, 91, 0.12), transparent 40%),
    linear-gradient(180deg, #eef4f0 0%, var(--bg) 100%);
  min-height: 100vh;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.header-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.container {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem 2rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: 0 10px 30px rgba(31, 42, 36, 0.05);
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 1.75rem;
}

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

.alert {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  color: var(--alert);
  background: var(--alert-bg);
  border-radius: 8px;
}

.stack-form {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.stack-form label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.95rem;
}

.stack-form input {
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  background: var(--accent);
  color: #fff;
  font: inherit;
  cursor: pointer;
}

.inline-form {
  display: inline;
  margin: 0;
}

.inline-form button {
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
}

.wide-panel {
  max-width: none;
}

.container:has(.wide-panel) {
  max-width: 1100px;
}

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

.btn,
.btn-secondary,
.btn-secondary-solid {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  font: inherit;
}

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

.btn-secondary {
  color: var(--accent);
  border: 1px solid var(--border);
  background: #fff;
  padding: 0.55rem 1rem;
}

.btn-secondary-solid {
  background: #2f4f45;
  color: #fff;
  border: 0;
  cursor: pointer;
}

.notice {
  margin: 1rem 0;
  padding: 0.75rem 1rem;
  color: var(--accent);
  background: rgba(31, 111, 91, 0.1);
  border-radius: 8px;
}

.filter-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  align-items: end;
  margin: 1.25rem 0;
}

.filter-bar label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
}

.filter-bar input,
.filter-bar select,
.word-form input,
.word-form select,
.word-form textarea {
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  width: 100%;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--border);
  padding: 0.7rem 0.5rem;
  text-align: left;
  vertical-align: top;
}

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

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.8rem;
  background: #e8eeeb;
}

.badge-draft {
  background: #eef2f7;
  color: #3a4a5a;
}

.badge-published {
  background: rgba(31, 111, 91, 0.15);
  color: var(--accent);
}

.badge-archived {
  background: #f1ebe4;
  color: #6a563f;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
}

.nav-list li {
  margin: 0.5rem 0;
}

.nav-list a {
  color: var(--accent);
  font-weight: 600;
}

.section-title {
  margin: 2rem 0 0.75rem;
  font-size: 1.2rem;
}

.task-block {
  margin-top: 1rem;
}

.task-block h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
}

.btn-disabled,
button.btn-disabled:disabled {
  background: #9aa8a1;
  color: #fff;
  cursor: not-allowed;
  opacity: 0.75;
}

.badge-completed {
  background: rgba(31, 111, 91, 0.2);
  color: var(--accent);
}

.badge-pending {
  background: #eef2f7;
  color: #3a4a5a;
}

.badge-in_progress {
  background: rgba(31, 111, 91, 0.12);
  color: var(--accent);
}

.badge-skipped {
  background: #f1ebe4;
  color: #6a563f;
}

.round-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 1.25rem;
  display: grid;
  gap: 0.5rem;
}

.round-list li {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.prompt-box {
  margin: 1.25rem 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f8fbf9;
}

.prompt-label {
  margin: 0 0 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.prompt-text {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.choice-set {
  border: 0;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.choice-option {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

.choice-option:hover {
  border-color: var(--accent);
}

.practice-panel {
  max-width: 720px;
}