:root {
  color-scheme: dark light;
  --bg: #0a0f0e;
  --bg-elev: #121a18;
  --bg-card: #15201d;
  --border: #243330;
  --border-strong: #35524a;
  --text: #e8f0ed;
  --muted: #8aa399;
  --accent: #5eead4;
  --accent-dim: #2dd4bf33;
  --accent-text: #042f2e;
  --warn: #fbbf24;
  --danger: #f87171;
  --ok: #4ade80;
  --shadow: 0 18px 50px #00000066;
  --radius: 14px;
  --font: "Segoe UI", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --max: 52rem;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f7f6;
    --bg-elev: #ffffff;
    --bg-card: #ffffff;
    --border: #d5e0dc;
    --border-strong: #a8c0b8;
    --text: #10211c;
    --muted: #5b726a;
    --accent: #0f766e;
    --accent-dim: #14b8a633;
    --accent-text: #ecfdf5;
    --shadow: 0 12px 40px #0f172a14;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
}

body {
  position: relative;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code,
pre,
.mono {
  font-family: var(--mono);
}

code {
  font-size: 0.88em;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0.1em 0.35em;
  border-radius: 6px;
}

.bg-glow {
  pointer-events: none;
  position: fixed;
  inset: -20% -10% auto;
  height: 55vh;
  background:
    radial-gradient(ellipse 50% 60% at 20% 20%, #14b8a622, transparent 60%),
    radial-gradient(ellipse 40% 50% at 80% 10%, #fbbf2414, transparent 55%);
  z-index: 0;
}

.shell {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.15rem 3rem;
}

.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.brand {
  display: flex;
  gap: 0.85rem;
  align-items: center;
}

.logo {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.85rem;
  background:
    linear-gradient(145deg, #134e4a, #0c1210 55%),
    linear-gradient(145deg, transparent 40%, #5eead455);
  border: 1px solid var(--border-strong);
  box-shadow: inset 0 1px 0 #ffffff18, var(--shadow);
  position: relative;
}

.logo::after {
  content: "";
  position: absolute;
  inset: 28% 30% 24%;
  border: 2px solid var(--accent);
  border-radius: 2px 2px 40% 40%;
  border-bottom: none;
  transform: rotate(180deg);
}

.brand h1 {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.tagline {
  margin: 0.1rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.top-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--muted);
  white-space: nowrap;
}

.pill.sm {
  font-size: 0.72rem;
  padding: 0.12rem 0.45rem;
  vertical-align: middle;
}

.pill.ok {
  color: var(--ok);
  border-color: #4ade8044;
  background: #4ade8014;
}

.pill.warn {
  color: var(--warn);
  border-color: #fbbf2444;
  background: #fbbf2414;
}

.pill.err {
  color: var(--danger);
  border-color: #f8717144;
  background: #f8717114;
}

.tabs {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding: 0.25rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-elev) 90%, transparent);
  backdrop-filter: blur(10px);
}

.tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: 0.15s ease;
}

.tab:hover {
  color: var(--text);
  background: #ffffff08;
}

.tab.active {
  color: var(--accent-text);
  background: var(--accent);
}

.main {
  min-height: 22rem;
}

.panel {
  animation: fade 0.18s ease;
}

.panel[hidden] {
  display: none !important;
}

@keyframes fade {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

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

.panel-head h2 {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.panel-head p {
  margin: 0.2rem 0 0;
}

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

h3 {
  margin: 1.5rem 0 0.65rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 700;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
}

label.check {
  flex-direction: row;
  align-items: center;
  gap: 0.55rem;
  font-weight: 500;
  color: var(--muted);
}

input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea {
  resize: vertical;
  min-height: 6rem;
  line-height: 1.45;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev);
  color: var(--text);
  font: inherit;
  font-weight: 650;
  font-size: 0.92rem;
  padding: 0.55rem 0.95rem;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.15s ease;
}

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

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

.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: var(--accent-text);
}

.btn.primary:hover {
  filter: brightness(1.05);
  color: var(--accent-text);
}

.btn.ghost {
  background: transparent;
}

.btn.danger:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 0.75rem;
}

.inline-form input {
  flex: 1 1 12rem;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.95rem 1.05rem;
  box-shadow: var(--shadow);
}

.card.post .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  margin-bottom: 0.55rem;
  font-size: 0.82rem;
  color: var(--muted);
  font-family: var(--mono);
}

.card.post .body {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 1.02rem;
}

.card .title {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.card .sub {
  color: var(--muted);
  font-size: 0.88rem;
  font-family: var(--mono);
  word-break: break-all;
}

.empty {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 2rem 1.25rem;
  text-align: center;
  color: var(--muted);
  background: color-mix(in srgb, var(--bg-elev) 70%, transparent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.stat-n {
  font-size: 1.75rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.stat-l {
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 650;
}

.code-block {
  margin: 0;
  padding: 0.9rem 1rem;
  background: #00000055;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: auto;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--muted);
  white-space: pre-wrap;
  word-break: break-word;
}

.callout {
  margin: 0.5rem 0 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid #fbbf2455;
  background: #fbbf2414;
  color: var(--text);
  font-size: 0.9rem;
}

.callout strong {
  color: var(--warn);
}

.callout code {
  user-select: all;
}

.hint {
  margin-top: 1.25rem;
  font-size: 0.9rem;
}

.muted-card {
  margin-top: 1.5rem;
}

.muted-card h3 {
  margin-top: 0;
}

.foot {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  align-items: center;
}

.foot .sep {
  opacity: 0.5;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%);
  z-index: 50;
  max-width: min(32rem, calc(100vw - 2rem));
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  font-size: 0.92rem;
  animation: fade 0.15s ease;
}

.toast.err {
  border-color: #f8717166;
}

.toast.ok {
  border-color: #4ade8066;
}

@media (max-width: 560px) {
  .shell {
    padding: 1rem 0.85rem 2.5rem;
  }

  .top {
    flex-direction: column;
  }

  .panel-head {
    flex-direction: column;
  }

  .tabs {
    border-radius: 16px;
  }
}