*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --ink: #111318;
  --ink-2: #4a4d58;
  --ink-3: #9097a6;
  --surface: #f5f6f8;
  --card: #ffffff;
  --border: rgba(0, 0, 0, 0.07);
  --accent: #2d5be3;
  --accent-soft: #eef1fd;
  --danger: #c0392b;
  --danger-soft: #fdf0ef;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-full: 999px;
  --shadow: 0 2px 8px rgba(0,0,0,0.05), 0 0 0 1px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.04);
  --trans: all 0.22s cubic-bezier(0.32, 0.72, 0, 1);
}

body {
  font-family: 'DM Sans', -apple-system, sans-serif;
  background: var(--surface);
  color: var(--ink);
  min-height: 100vh;
  padding: 48px 16px 80px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrapper { max-width: 520px; margin: 0 auto; }

.brand { text-align: center; margin-bottom: 32px; }

.brand-label {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--card);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.brand h1 {
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav-strip {
  display: flex;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.nav-btn {
  flex: 1;
  padding: 9px 4px;
  font-size: 0.78rem;
  font-weight: 500;
  font-family: inherit;
  background: transparent;
  color: var(--ink-2);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--trans);
  white-space: nowrap;
}

.nav-btn:hover { background: var(--surface); color: var(--ink); }
.nav-btn.active { background: var(--ink); color: #fff; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  letter-spacing: -0.01em;
}

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }

.field label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.01em;
}

.field input,
.field select {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--ink);
  background: var(--surface);
  outline: none;
  transition: var(--trans);
  width: 100%;
}

.field input:focus,
.field select:focus {
  border-color: var(--accent);
  background: var(--card);
  box-shadow: 0 0 0 3px rgba(45, 91, 227, 0.1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 500;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--trans);
  width: 100%;
  margin-top: 8px;
}

.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #2a2e38; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
.btn-primary:active { transform: translateY(0); }

.btn-danger {
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 0.78rem;
  padding: 5px 12px;
  width: auto;
  margin-top: 0;
  border-radius: var(--radius-full);
}
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-print { background: var(--accent-soft); color: var(--accent); margin-top: 16px; }
.btn-print:hover { background: var(--accent); color: #fff; }

.toast {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(45,91,227,0.12);
}

.toast.error {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: rgba(192,57,43,0.12);
}

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

.emp-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  gap: 12px;
  transition: var(--trans);
}

.emp-row:hover { border-color: rgba(0,0,0,0.12); box-shadow: var(--shadow); }

.emp-info { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }

.emp-name {
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.emp-meta { font-size: 0.78rem; color: var(--ink-3); }

.slip-block {
  margin-top: 20px;
  padding: 20px;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.slip-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 0;
  font-size: 0.87rem;
  border-bottom: 1px solid var(--border);
}

.slip-row:last-child { border-bottom: none; }
.slip-row .label { color: var(--ink-2); }
.slip-row .val { font-family: 'DM Mono', monospace; font-size: 0.83rem; }

.slip-section-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 14px 0 6px;
}

.slip-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0 4px;
  font-size: 1rem;
  font-weight: 600;
  border-top: 2px solid var(--ink);
  margin-top: 8px;
}

.slip-total .val {
  font-family: 'DM Mono', monospace;
  color: var(--accent);
}

.empty {
  text-align: center;
  padding: 32px 0;
  color: var(--ink-3);
  font-size: 0.88rem;
}

@media (max-width: 480px) {
  body { padding: 24px 12px 60px; }
  .card { padding: 24px 18px; }
  .nav-btn { font-size: 0.7rem; padding: 8px 2px; }
}