:root {
  --bg: #f3f5f7;
  --card: #ffffff;
  --text: #1d2329;
  --muted: #5f6b77;
  --accent: #0a7b83;
  --danger: #b42318;
  --warn: #9f6a00;
  --border: #d9e0e7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #e6f2ff, #f3f5f7 40%);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--border);
  background: #ffffffcc;
  backdrop-filter: blur(3px);
}

.topbar a {
  margin-left: 0.8rem;
  color: var(--accent);
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 1.3rem auto;
  padding: 0 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 6px 20px rgba(17, 24, 39, 0.05);
  margin-bottom: 1rem;
}

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

h1,
h2,
h3 {
  margin-top: 0.2rem;
}

.muted {
  color: var(--muted);
  font-size: 0.94rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.8rem 0;
}

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

input,
select,
button {
  font: inherit;
  padding: 0.45rem 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

button {
  cursor: pointer;
  background: #fff;
}

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

button.danger {
  border-color: #ffd5d2;
  color: var(--danger);
  background: #fff7f7;
}

button.warn {
  border-color: #ffe1ad;
  color: var(--warn);
  background: #fff9ee;
}

.inline-form {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.stack-form {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin: 0.5rem 0 1rem;
}

.stack-block {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0.5rem 0;
}

.subcard {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem;
  background: #fcfdff;
}

.badge {
  display: inline-block;
  font-size: 0.78rem;
  padding: 0.08rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #f7f9fc;
  vertical-align: middle;
}

.badge.warn {
  border-color: #ffe1ad;
  color: var(--warn);
  background: #fff9ee;
}

table.compact th,
table.compact td {
  padding: 0.35rem 0.45rem;
}

.stack-form select {
  width: 100%;
}

.flash-wrap {
  margin-bottom: 1rem;
}

.flash {
  border-radius: 10px;
  padding: 0.6rem 0.75rem;
  margin-bottom: 0.45rem;
  border: 1px solid var(--border);
  background: #fff;
}

.flash.success {
  border-color: #b7ebc6;
  background: #f3fff5;
}

.flash.error {
  border-color: #ffd5d2;
  background: #fff7f7;
}

.login-card {
  max-width: 380px;
  margin: 10vh auto;
}

.login-card .stack-form {
  margin-bottom: 0;
}

.login-card input,
.login-card button {
  width: 100%;
}

code {
  background: #f4f6f8;
  padding: 0.15rem 0.3rem;
  border-radius: 5px;
}

@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .inline-form {
    flex-direction: column;
    align-items: stretch;
  }
}