:root {
  --primary: #20373F;
  --primary-light: #2d4d57;
  --accent: #C8D415;
  --accent-light: #d6e047;
  --bg: #f4f7f6;
  --panel: #ffffff;
  --text: #1a1a1a;
  --text-muted: #666666;
  --border: #e0e0e0;
  --success: #28a745;
  --error: #dc3545;
  --warning: #ffc107;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Layout Components */
.topbar {
  background: var(--primary);
  color: #fff;
  padding: 0 24px;
  height: 64px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar a:not(.btn) {
  color: #fff;
  text-decoration: none;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo-link {
  display: flex;
  align-items: center;
  height: 100%;
}

.logo-img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

/* Make logo white for the dark topbar */

.main-nav {
  display: flex;
  gap: 24px;
}

.main-nav a {
  font-weight: 600;
  font-size: 14px;
  opacity: 0.8;
  transition: opacity 0.2s, color 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main-nav a:hover {
  opacity: 1;
  color: var(--accent);
}

.panel {
  background: var(--panel);
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary);
}

input,
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 212, 21, 0.2);
}

.row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.row>div {
  flex: 1;
  min-width: 200px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
  gap: 8px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

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

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

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

.btn-secondary {
  background: #fff;
  color: var(--primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #f9f9f9;
  border-color: var(--text-muted);
}

.btn-danger {
  background: var(--error);
  color: #fff;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Tables */
.table-container {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th {
  background: #f8f9fa;
  padding: 16px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
}

.table td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  vertical-align: middle;
}

.table tr:hover {
  background: #fcfcfc;
}

/* Alerts */
.alert {
  padding: 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 14px;
  border: 1px solid transparent;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border-color: #fecaca;
}

.alert-ok {
  background: #dcfce7;
  color: #166534;
  border-color: #bbf7d0;
}

/* Utilities */
.muted {
  color: var(--text-muted);
  font-size: 13px;
}

.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: 1rem;
}

.chips {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.chips label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: normal;
  margin-bottom: 0;
}

/* Dashboard items */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

/* Timer */
.timer {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  font-family: monospace;
}