:root {
  --bg: #f4f7f6;
  --surface: #ffffff;
  --text: #1a2e2b;
  --muted: #5c726e;
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --danger: #dc2626;
  --warning: #d97706;
  --success: #16a34a;
  --border: #e2ece9;
  --shadow: 0 4px 24px rgba(13, 148, 136, 0.08);
}

* { box-sizing: border-box; }

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

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

.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
}

.sidebar {
  background: linear-gradient(180deg, #0f766e 0%, #134e4a 100%);
  color: #ecfdf5;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand small {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.85;
  margin-top: 0.25rem;
}

.nav { display: flex; flex-direction: column; gap: 0.35rem; }

.nav a {
  color: #ecfdf5;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
}

.nav a:hover, .nav a.active {
  background: rgba(255, 255, 255, 0.15);
  text-decoration: none;
}

.sidebar-footer {
  margin-top: auto;
  font-size: 0.85rem;
  opacity: 0.9;
}

.main { padding: 1.5rem 2rem; }

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-header h1 {
  margin: 0;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card-label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.card-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.panel-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.panel-body { padding: 0; }

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

th, td {
  padding: 0.85rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: #f8fbfb;
}

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

.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-in { background: #dcfce7; color: #166534; }
.badge-out { background: #fee2e2; color: #991b1b; }
.badge-adjustment { background: #fef3c7; color: #92400e; }
.badge-warning { background: #ffedd5; color: #9a3412; }
.badge-ok { background: #dcfce7; color: #166534; }

.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.95rem;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  text-decoration: none;
  color: white;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.search-bar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.search-bar input, .search-bar select {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

.search-bar input { flex: 1; max-width: 320px; }

.messages { margin-bottom: 1rem; }

.message {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
}

.message-error { background: #fee2e2; color: #991b1b; }
.message-success { background: #dcfce7; color: #166534; }
.message-info { background: #e0f2fe; color: #075985; }
.message-warning { background: #fef3c7; color: #92400e; }

.subscription-alerts {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.subscription-alert {
  padding: 1rem 1.15rem;
  border-radius: 10px;
  border: 1px solid transparent;
}

.subscription-alert p {
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
  line-height: 1.45;
}

.subscription-alert-warning {
  background: #fffbeb;
  border-color: #fcd34d;
  color: #92400e;
}

.subscription-alert-error {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #991b1b;
}

.subscription-alert-info {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1e40af;
}

.subscription-badge {
  display: inline-block;
  margin-top: 0.65rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.08);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdfa 50%, #ccfbf1 100%);
  padding: 1rem;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.login-card h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.login-card p { color: var(--muted); margin: 0 0 1.5rem; }

.form-group { margin-bottom: 1rem; }

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.form-group input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

.panel input[type="text"],
.panel input[type="number"],
.panel textarea,
.panel select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
}

.pagination {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  justify-content: center;
}

.pagination a, .pagination span {
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.pagination .current {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  padding: 1.25rem;
}

.info-item label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.info-item strong { font-size: 1.05rem; }

@media (max-width: 768px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .sidebar-footer { width: 100%; }
  .main { padding: 1rem; }
}