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

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  background-image: var(--color-bg-mesh);
  background-attachment: fixed;
  font-size: 15px;
  line-height: 1.55;
}

a {
  color: var(--color-accent-1);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-surface-solid);
  border-right: 1px solid var(--color-border);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.brand span {
  color: var(--color-accent-1);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}
.nav a {
  color: var(--color-text-secondary);
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
}
.nav a:hover,
.nav a.active {
  background: var(--color-accent-muted);
  color: var(--color-accent-1);
  text-decoration: none;
}

.sidebar-foot {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.main {
  flex: 1;
  padding: 1.5rem 2rem 3rem;
  min-width: 0;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.page-header h1 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card {
  background: var(--color-surface-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}
.stat {
  padding: 1rem;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.stat .label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.stat .value {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.table-wrap {
  overflow-x: auto;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.data th,
table.data td {
  text-align: left;
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
table.data th {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.data tr:hover td {
  background: var(--color-accent-subtle, var(--color-accent-muted));
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover {
  text-decoration: none;
}
.btn--primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.btn--primary:hover {
  background: var(--gradient-accent-hover);
  color: #fff;
}
.btn--secondary {
  background: var(--color-surface-solid);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn--danger {
  background: var(--color-error-bg);
  color: var(--color-error);
  border-color: transparent;
}
.btn--sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge--success {
  background: var(--color-success-bg);
  color: var(--color-success);
}
.badge--warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}
.badge--error {
  background: var(--color-error-bg);
  color: var(--color-error);
}
.badge--info {
  background: var(--color-info-bg);
  color: var(--color-info);
}
.badge--muted {
  background: var(--color-accent-muted);
  color: var(--color-text-secondary);
}

.form-grid {
  display: grid;
  gap: 1rem;
  max-width: 640px;
}
.form-grid.wide {
  max-width: 960px;
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.form-row label {
  font-weight: 600;
  font-size: 0.85rem;
}
.form-row .hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
select,
textarea {
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface-solid);
  color: var(--color-text);
}
textarea {
  min-height: 90px;
  resize: vertical;
}
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.flash-wrap {
  margin-bottom: 1rem;
}
.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}
.flash-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}
.flash-danger,
.flash-error {
  background: var(--color-error-bg);
  color: var(--color-error);
}
.flash-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}
.flash-info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
  margin-bottom: 1rem;
}
.filters .form-row {
  min-width: 140px;
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}
.login-card {
  width: 100%;
  max-width: 400px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.log-list {
  font-size: 0.85rem;
}
.log-item {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
}
.log-meta {
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

@media (max-width: 860px) {
  .layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }
  .main {
    padding: 1rem;
  }
}