:root {
  --bg: #f3f5f7;
  --card: #ffffff;
  --primary: #0f766e;
  --primary-strong: #0b5f59;
  --danger: #b42318;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(180deg, #eef2f6 0%, #f8fafc 70%);
  color: var(--text);
}

.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

.hero {
  background: linear-gradient(140deg, #0f766e, #115e59);
  color: #fff;
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 8px 24px rgba(15, 118, 110, 0.25);
}

.hero h1 {
  margin: 0;
  font-size: 1.5rem;
}

.hero p,
.hero small {
  display: block;
  margin-top: 8px;
}

.actions,
.manual,
.days {
  background: var(--card);
  margin-top: 14px;
  border-radius: 14px;
  padding: 14px;
  border: 1px solid var(--border);
}

.btn {
  width: 100%;
  border: none;
  border-radius: 10px;
  padding: 13px;
  font-size: 1rem;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
  margin-top: 10px;
}

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

.btn-in {
  background: #0f766e;
}

.btn-out {
  background: #2563eb;
}

.hint {
  color: var(--muted);
  margin: 12px 0 0;
}

.stack {
  display: grid;
  gap: 8px;
}

label {
  font-size: 0.92rem;
  color: var(--muted);
}

select,
input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px;
  font-size: 1rem;
}

h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin-top: 10px;
}

.card-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

.meta {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

ul {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding: 10px 0;
}

small {
  color: var(--muted);
}

.row-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.link {
  border: none;
  background: none;
  color: #1d4ed8;
  text-decoration: underline;
  font-size: 0.92rem;
  padding: 0;
  cursor: pointer;
}

.link.danger {
  color: var(--danger);
}

.back {
  display: inline-block;
  margin-top: 14px;
}

.alerts {
  margin-top: 14px;
}

.alert {
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 8px;
  font-size: 0.93rem;
}

.alert.success {
  background: #ecfdf3;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.alert.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.empty {
  color: var(--muted);
}

@media (min-width: 768px) {
  .actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .hint {
    grid-column: 1 / -1;
  }
}