:root {
  --canvas: #faf8f5;
  --card: #ffffff;
  --border: #e7e5e4;
  --matcha: #ebf0e8;
  --matcha-border: #d5dfd0;
  --input: #f5f3ef;
  --olive: #4e6e4e;
  --olive-hover: #3d583d;
  --on-olive: #faf8f5;
  --terracotta: #d97757;
  --ink: #1c1917;
  --muted: #78716c;
  --shadow: 0 4px 20px -2px rgba(28, 25, 23, 0.04);
  --shadow-hover: 0 8px 28px -4px rgba(28, 25, 23, 0.08);
  --ok-bg: #e6f4ea;
  --ok-ink: #2e6f40;
  --warn-bg: #fef3c7;
  --warn-ink: #b45309;
  --err-bg: #fdf3f0;
  --err-ink: #9a3412;
  --radius: 16px;
  --radius-sm: 12px;
  --font-ui: "Inter", system-ui, sans-serif;
  --font-display: "Manrope", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(78, 110, 78, 0.08), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(217, 119, 87, 0.06), transparent 55%),
    var(--canvas);
  color: var(--ink);
  font-family: var(--font-ui);
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  -webkit-font-smoothing: antialiased;
}

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

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--olive);
  outline-offset: 2px;
}

#app {
  min-height: 100vh;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
}

.login-bare {
  width: min(280px, 100%);
}

.login-bare input {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 10px 2px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.login-bare input:focus {
  outline: none;
  border-bottom-color: var(--matcha-border);
  color: var(--ink);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.brand svg {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
}

.brand-word {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.025em;
  font-size: 28px;
  line-height: 1;
}

.brand-sub {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 13px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--matcha-border);
  box-shadow: 0 0 0 3px rgba(78, 110, 78, 0.12);
  outline: none;
}

.field textarea {
  min-height: 220px;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.45;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn-primary {
  background: var(--olive);
  color: var(--on-olive);
  width: 100%;
}

.btn-primary:hover:not(:disabled) {
  background: var(--olive-hover);
}

.btn-secondary {
  background: var(--matcha);
  color: var(--ink);
  border: 1px solid var(--matcha-border);
}

.btn-secondary:hover:not(:disabled) {
  box-shadow: var(--shadow-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  padding: 8px 10px;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--ink);
  background: var(--matcha);
}

.btn-danger {
  background: var(--err-bg);
  color: var(--err-ink);
  border: 1px solid #f5d0c5;
}

.flash {
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 14px;
}

.flash-error {
  background: var(--err-bg);
  color: var(--err-ink);
}

.flash-ok {
  background: var(--ok-bg);
  color: var(--ok-ink);
}

.shell {
  display: grid;
  grid-template-columns: 260px minmax(220px, 280px) 1fr;
  min-height: 100vh;
}

@media (max-width: 960px) {
  .shell {
    grid-template-columns: 1fr;
  }
}

.sidebar,
.versions {
  border-right: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
  padding: 20px 16px;
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 18px;
}

.nav-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 16px 0 8px;
  font-weight: 600;
}

.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--ink);
  transition: background 0.15s ease;
}

.nav-item:hover {
  background: var(--matcha);
}

.nav-item.active {
  background: var(--matcha);
  border: 1px solid var(--matcha-border);
  font-weight: 600;
}

.nav-item .meta {
  display: block;
  font-size: 12px;
  color: var(--muted);
  font-weight: 400;
  margin-top: 2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
}

.badge-active {
  background: var(--ok-bg);
  color: var(--ok-ink);
}

.badge-idle {
  background: var(--input);
  color: var(--muted);
}

.main {
  padding: 24px 28px 48px;
}

.main-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.main-head h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: -0.025em;
}

.main-head p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.editor-grid {
  display: grid;
  gap: 14px;
}

.editor-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.editor-card h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: -0.02em;
}

.meta-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
  line-height: 1.4;
}

.hint code {
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--input);
  padding: 1px 5px;
  border-radius: 6px;
}

.empty {
  color: var(--muted);
  font-size: 14px;
  padding: 24px 8px;
}

.version-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 6px;
}

.version-row:hover {
  background: var(--matcha);
}

.version-row.active {
  background: var(--card);
  border-color: var(--matcha-border);
  box-shadow: var(--shadow);
}

.version-row .v {
  font-family: var(--font-mono);
  font-size: 13px;
}

.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.filters select {
  flex: 1;
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
}