:root {
  color-scheme: dark;
  --bg: #0b0b0d;
  --card: #1c1c1f;
  --card-2: #242428;
  --text: #f5f5f7;
  --text-dim: #9a9aa2;
  --accent: #34c759;
  --accent-dim: #2a5c38;
  --danger: #ff6b6b;
  --danger-dim: #5c2a2a;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 40px;
  gap: 20px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border-radius: 24px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
}

.header {
  text-align: center;
}

.count {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.sub {
  margin-top: 8px;
  font-size: 15px;
  color: var(--text-dim);
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn {
  appearance: none;
  border: none;
  border-radius: 14px;
  padding: 16px;
  font-size: 17px;
  font-weight: 600;
  min-height: 48px;
  cursor: pointer;
  transition: transform 0.15s cubic-bezier(0.32, 0.72, 0.24, 1.04), opacity 0.15s ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.btn-plus {
  background: var(--accent);
  color: #06210f;
}

.btn-minus {
  background: var(--danger-dim);
  color: var(--danger);
}

.btn-secondary {
  background: var(--card-2);
  color: var(--text);
}

.status {
  min-height: 18px;
  margin: 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-dim);
}

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

.vac {
  width: 100%;
  max-width: 420px;
}

.vac-toggle {
  appearance: none;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  padding: 8px 4px;
  cursor: pointer;
}

.vac-panel {
  margin-top: 8px;
  background: var(--card);
  border-radius: 18px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.vac-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
}

.vac-list .empty {
  color: var(--text-dim);
}

.vac-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.vac-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--text-dim);
}

.vac-form input {
  background: var(--card-2);
  border: none;
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 15px;
}