:root {
  --bg: #3a4652;
  --bg-deep: #4a5662;
  --card: #b8c1b7;
  --card-soft: #aeb7ad;
  --field: #c7cfc6;
  --field-border: #7d887f;
  --field-focus: #566f64;
  --text: #1d2523;
  --text-light: #e6ece7;
  --muted: #4c5851;
  --accent: #556b60;
  --border: rgba(24, 32, 42, 0.14);
  --success: #1f7a45;
  --error: #aa2d2d;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text-light);
  background:
    radial-gradient(circle at top, rgba(214, 224, 216, 0.08), transparent 32%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(42, 52, 66, 0.78);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
}

.topbar h1 { margin: 0; font-size: 1.4rem; }
.topbar p { margin: 0.25rem 0 0; color: rgba(255,255,255,0.75); }

.nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.nav a { color: var(--text-light); text-decoration: none; }
.badge {
  background: rgba(85, 107, 96, 0.18);
  color: #e1ebe4;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
}

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

.card {
  background: var(--card);
  color: var(--text);
  border-radius: 20px;
  padding: 1.25rem;
  border: 1px solid rgba(48, 60, 54, 0.18);
  box-shadow: 0 18px 45px rgba(24, 30, 38, 0.18);
}

.narrow { max-width: 420px; margin: 4rem auto; }
.grid { display: grid; gap: 1rem; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.stack { display: grid; gap: 1rem; }
label { display: grid; gap: 0.35rem; font-weight: 700; }
input, textarea, select, button {
  font: inherit;
}
input, textarea, select {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--field-border);
  background: var(--field);
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}

input::placeholder,
textarea::placeholder {
  color: #58645d;
  opacity: 1;
}

select {
  appearance: none;
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid rgba(86, 111, 100, 0.18);
  outline-offset: 1px;
  border-color: var(--field-focus);
  background: #d4dbd3;
}

input:hover,
textarea:hover,
select:hover {
  border-color: #69756d;
}
button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: white;
  text-decoration: none;
  cursor: pointer;
}
.button.secondary {
  background: #9eaaa0;
  color: var(--text);
}

.section-head, .actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 0.75rem 0.4rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.flash-stack { display: grid; gap: 0.75rem; margin-bottom: 1rem; }
.flash {
  padding: 0.9rem 1rem;
  border-radius: 14px;
}
.flash.success { background: rgba(31,122,69,0.14); color: #d8ffe7; }
.flash.error { background: rgba(170,45,45,0.18); color: #ffe3e3; }

.meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 1.5rem;
}
.meta dt { font-weight: 700; }
.meta dd { margin: 0.2rem 0 0; }

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

.form-help {
  margin: -0.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

@media (max-width: 860px) {
  .grid.two, .grid.three, .meta {
    grid-template-columns: 1fr;
  }
  .section-head, .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .inline-form {
    flex-direction: column;
    align-items: stretch;
  }
}