:root {
  --bg: #0f1218;
  --bg-elevated: #171b24;
  --bg-input: #1e2430;
  --border: #2a3142;
  --text: #e8eaef;
  --text-muted: #8b93a7;
  --accent: #5b8cff;
  --accent-dim: #3d5a99;
  --success: #3ecf8e;
  --warning: #e6b84d;
  --danger: #f07178;
  --radius: 10px;
  --font: "DM Sans", system-ui, -apple-system, sans-serif;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.topbar {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.75rem;
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand:hover {
  text-decoration: none;
  color: var(--accent);
}

nav.nav-main {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  align-items: center;
}

nav.nav-main a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
}
nav.nav-main a:hover,
nav.nav-main a.active {
  color: var(--text);
  text-decoration: none;
}
nav.nav-main a.active {
  color: var(--accent);
}

.user-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

h1 {
  font-size: 1.65rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  letter-spacing: -0.03em;
}

.subtitle {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
}

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.flash {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.flash.ok {
  background: rgba(62, 207, 142, 0.12);
  border: 1px solid rgba(62, 207, 142, 0.35);
  color: var(--success);
}
.flash.err {
  background: rgba(240, 113, 120, 0.1);
  border: 1px solid rgba(240, 113, 120, 0.35);
  color: var(--danger);
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
  width: 100%;
  max-width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}
textarea {
  min-height: 72px;
  resize: vertical;
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 2px rgba(91, 140, 255, 0.2);
}

.row {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (min-width: 640px) {
  .row.cols-2 {
    grid-template-columns: 1fr 1fr;
  }
  .row.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid transparent;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  background: var(--bg-input);
  border-color: var(--border);
}
.btn:hover {
  text-decoration: none;
  background: #252b3a;
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a0c10;
}
.btn-primary:hover {
  background: #7a9fff;
  border-color: #7a9fff;
  color: #0a0c10;
}
.btn-danger {
  background: rgba(240, 113, 120, 0.15);
  border-color: rgba(240, 113, 120, 0.4);
  color: var(--danger);
}
.btn-danger:hover {
  background: rgba(240, 113, 120, 0.25);
  color: #ff9a9f;
}
.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8rem;
}
.btn-ghost {
  background: transparent;
}

.month-picker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.month-picker form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: flex-end;
}
.month-picker select {
  width: auto;
  min-width: 140px;
}

.stats-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  margin-bottom: 1.5rem;
}

.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}
.stat .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.stat .value {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.stat .hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.data th,
table.data td {
  text-align: left;
  padding: 0.6rem 0.65rem;
  border-bottom: 1px solid var(--border);
}
table.data th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.data tr:last-child td {
  border-bottom: none;
}
table.data .num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
table.data .muted {
  color: var(--text-muted);
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-paid {
  background: rgba(62, 207, 142, 0.15);
  color: var(--success);
}
.badge-due {
  background: rgba(230, 184, 77, 0.12);
  color: var(--warning);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(91, 140, 255, 0.18), transparent),
    var(--bg);
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}
.login-card h1 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}
.login-card .subtitle {
  margin-bottom: 1.5rem;
}

.inline-form {
  display: inline;
}

.deduction-rows .deduction-row,
#mw-rows .row-line,
#pt-rows .row-line {
  display: grid;
  grid-template-columns: 1fr 120px auto;
  gap: 0.5rem;
  align-items: end;
  margin-bottom: 0.5rem;
}
@media (max-width: 560px) {
  .deduction-rows .deduction-row,
  #mw-rows .row-line,
  #pt-rows .row-line {
    grid-template-columns: 1fr;
  }
}

.manage-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .manage-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.empty-hint {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}

hr.soft {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.25rem 0;
}