:root {
  --bg: #f3f5f8;
  --card: #ffffff;
  --text: #202124;
  --muted: #6b7280;
  --border: #d9dee7;
  --primary: #1a73e8;
  --primary-soft: #e8f0fe;
  --danger: #c5221f;
  --success: #137333;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

body {
  padding:
    max(12px, env(safe-area-inset-top))
    12px
    max(18px, env(safe-area-inset-bottom));
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

.app {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.app-header h1 {
  margin: 0;
  font-size: 24px;
}

.status {
  margin: 5px 0 0;
  font-size: 13px;
  font-weight: 700;
}

.status-online {
  color: var(--success);
}

.status-offline {
  color: var(--danger);
}

.icon-button,
.section-header button {
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.tab {
  min-height: 46px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  font-weight: 700;
}

.tab.active {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

.screen {
  display: none;
}

.screen.active {
  display: block;
}

.card {
  padding: 18px;
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 16px;
  font-size: 20px;
}

.type-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.type-button {
  min-height: 52px;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  font-size: 17px;
  font-weight: 700;
}

.type-button.active {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary);
}

label {
  display: block;
  margin: 14px 0 6px;
  font-size: 14px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #ffffff;
  color: var(--text);
  font-size: 17px;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.14);
}

.amount-input {
  font-size: 28px;
  font-weight: 700;
}

textarea {
  min-height: 88px;
  resize: vertical;
}

.primary-button {
  width: 100%;
  min-height: 56px;
  margin-top: 20px;
  border: 0;
  border-radius: 12px;
  background: var(--primary);
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
}

.primary-button:disabled {
  background: #9ca3af;
}

.message {
  min-height: 20px;
  margin: 14px 0 0;
  font-size: 14px;
  text-align: center;
}

.message.success {
  color: var(--success);
}

.message.error {
  color: var(--danger);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.section-header h2 {
  margin: 0;
}

.operations-list {
  display: grid;
  gap: 10px;
}

.operation-item {
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.operation-main {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-weight: 700;
}

.operation-meta {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.operation-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.operation-actions button {
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #ffffff;
}

.delete-button {
  color: var(--danger);
}

.restore-button {
  color: var(--success);
}

.empty-state,
.small-text {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 420px) {
  body {
    padding-left: 8px;
    padding-right: 8px;
  }

  .card {
    padding: 15px;
    border-radius: 14px;
  }

  .app-header {
    align-items: flex-start;
  }

  .app-header h1 {
    font-size: 22px;
  }

  .icon-button {
    padding: 9px 10px;
    font-size: 13px;
  }
}