:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --ink: #172235;
  --muted: #5c6b84;
  --primary: #0f6d5f;
  --primary-strong: #0b5449;
  --danger: #b42318;
  --border: #d5dce8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Noto Sans", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top right, #d9efe9, var(--bg) 38%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  color: var(--primary-strong);
  text-decoration: none;
}

.version-chip {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.35rem;
  border-radius: 999px;
  font-size: 0.73rem;
  font-weight: 600;
  background: #e3f4ef;
  color: var(--primary-strong);
}

.menu {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.menu a {
  font-size: 0.92rem;
  color: var(--muted);
  text-decoration: none;
  padding: 0.3rem 0.5rem;
  border-radius: 0.45rem;
}

.menu a:hover {
  background: #e5edf8;
  color: var(--ink);
}

.userbox {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
}

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

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.flash {
  padding: 0.75rem;
  border-radius: 0.65rem;
  margin-bottom: 1rem;
}

.flash-success {
  background: #dcfae6;
  color: #10653e;
}

.flash-error {
  background: #ffe2e0;
  color: #8b1510;
}

.filters,
.inline-panel,
.import-form,
.data-form,
.actions-cell,
.pagination-bar,
.actions,
.auth-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.data-form label,
.auth-form label {
  display: grid;
  gap: 0.3rem;
  min-width: min(100%, 240px);
}

input,
select,
button,
.link-button {
  font: inherit;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  padding: 0.5rem 0.65rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input.field-error,
select.field-error {
  border-color: var(--danger);
  box-shadow: 0 0 0 2px rgba(180, 35, 24, 0.12);
  outline: none;
}

button {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  cursor: pointer;
}

button:hover {
  background: var(--primary-strong);
}

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

.btn-danger:hover {
  background: #8b1510;
  border-color: #8b1510;
}

.link-button {
  display: inline-block;
  text-decoration: none;
  color: var(--ink);
  background: #edf2fb;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  padding: 1rem;
}

.modal-overlay.visible {
  display: flex;
}

.modal-box {
  width: min(560px, 100%);
  max-height: 80vh;
  overflow: auto;
  background: var(--surface);
  border: 2px solid var(--danger);
  border-radius: 0.85rem;
  padding: 1.25rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--danger);
  font-size: 1.05rem;
  font-weight: 700;
}

.modal-icon {
  font-size: 1.25rem;
}

.modal-data {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.modal-data td {
  padding: 0.45rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-data td:first-child {
  width: 36%;
  color: var(--muted);
  font-weight: 600;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 0.55rem;
  vertical-align: top;
}

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

th a:hover {
  color: var(--primary-strong);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 0.8rem;
}

.card {
  display: block;
  text-decoration: none;
  color: inherit;
  border: 1px solid var(--border);
  border-radius: 0.7rem;
  padding: 0.8rem;
  background: #f8fbff;
}

.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.auth-panel {
  max-width: 420px;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.auth-links {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

@media (min-width: 920px) {
  .topbar {
    grid-template-columns: auto 1fr auto;
    align-items: center;
  }
}