:root {
  --bg: #0a0e14;
  --surface: #12171f;
  --surface-hover: #182030;
  --border: #232b38;
  --text: #e8ebf0;
  --text-muted: #8993a4;
  --accent: #36e8b8;
  --accent-strong: #1fcf9e;
  --danger: #f0556b;
  --warning: #f5a524;
  --radius: 10px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

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

a {
  color: var(--accent);
}

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.login-card {
  width: 100%;
  max-width: 380px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}

.brand-mark {
  color: var(--accent);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
}

.brand-sub {
  color: var(--text-muted);
  font-size: 14px;
}

h1 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 20px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field {
  margin-bottom: 16px;
}

input[type='email'],
input[type='password'] {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font);
}

input[type='email']:focus,
input[type='password']:focus {
  outline: none;
  border-color: var(--accent);
}

button {
  font-family: var(--font);
  cursor: pointer;
}

.btn-primary {
  width: 100%;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #06241c;
  font-weight: 600;
  font-size: 14px;
  padding: 11px 16px;
  margin-top: 8px;
}

.btn-primary:hover {
  background: var(--accent-strong);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: default;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  padding: 8px 14px;
}

.btn-secondary:hover {
  background: var(--surface-hover);
}

.error-message {
  background: rgba(240, 85, 107, 0.12);
  border: 1px solid rgba(240, 85, 107, 0.35);
  color: var(--danger);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

.error-message.visible {
  display: block;
}

/* Dashboard */

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.page-header .brand-sub {
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.stat-label {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
}

.stat-card.overdue .stat-value {
  color: var(--danger);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.panel-header h2 {
  font-size: 14px;
  font-weight: 600;
  margin: 0;
}

.last-updated {
  font-size: 12px;
  color: var(--text-muted);
}

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

th,
td {
  text-align: left;
  padding: 12px 20px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.04em;
}

tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  background: rgba(137, 147, 164, 0.15);
  color: var(--text-muted);
}

.badge.status-done {
  background: rgba(54, 232, 184, 0.15);
  color: var(--accent);
}

.badge.status-inprogress {
  background: rgba(245, 165, 36, 0.15);
  color: var(--warning);
}

td.due-date.overdue {
  color: var(--danger);
  font-weight: 600;
}

.empty-state,
.loading-state {
  padding: 32px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}