:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --accent-gradient: linear-gradient(135deg, #26a65b 0%, #0b0b0b 100%);
  --accent-red: #e03131;
  --radius: 12px;
  --shadow: 0 6px 20px rgba(16, 24, 40, 0.06);
}

* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(180deg, #fafafa 0%, #f0f4f8 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

.app-header {
  padding: 18px 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  display: flex;
  justify-content: center;
  background: transparent;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}
.logo {
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  outline: 3px solid var(--accent-red);
  padding: 4px;
}
.title h1 {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.2px;
}
.title .tag {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.container {
  max-width: 980px;
  margin: 28px auto;
  padding: 22px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.left-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.right-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}
.tool-label {
  font-size: 13px;
  color: var(--muted);
  margin-right: 6px;
}
.control {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid #e6e9ed;
  background: transparent;
}
.lang-radio {
  font-size: 13px;
  color: var(--muted);
  margin-left: 6px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.employee-block {
  background: var(--card);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  border-left: 6px solid;
  border-image: var(--accent-gradient) 1;
  margin-bottom: 16px;
  position: relative;
  overflow: visible;
}
.block-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.block-top h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}
.block-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn-icon {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
  padding: 8px;
  border-radius: 8px;
}
.btn-icon:hover {
  color: var(--text);
  background: rgba(0, 0, 0, 0.04);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.input-group {
  display: flex;
  flex-direction: column;
}
label {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}
input[type="number"],
select {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #e6e9ed;
  background: transparent;
  font-size: 14px;
  color: var(--text);
  outline: none;
}
input[type="number"]:focus,
select:focus {
  box-shadow: 0 4px 18px rgba(16, 24, 40, 0.06);
  border-color: #cbd5e1;
}

.result-box {
  margin-bottom: 12px;
  background: linear-gradient(180deg, rgba(14, 165, 75, 0.06), rgba(0, 0, 0, 0.02));
  padding: 10px 12px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
}
.result-box .label {
  color: var(--muted);
  font-weight: 500;
  font-size: 13px;
}
.result-box .value {
  font-size: 16px;
  color: #0b3f00;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}
.add-btn {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 8px 30px rgba(38, 166, 91, 0.12);
}
.reset-btn {
  background: var(--accent-red);
  color: white;
}

.grand-total {
  margin-top: 12px;
  background: linear-gradient(180deg, rgba(255, 240, 240, 0.8), rgba(255, 255, 255, 0.6));
  padding: 12px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 18px;
  font-weight: 700;
  border: 1px solid rgba(224, 49, 49, 0.08);
}

.primary-btn {
  /* width: 100%; */
  margin-top: 14px;
  background: linear-gradient(135deg, #0f9d58 0%, #0b0b0b 100%);
  color: white;
  padding: 12px;
  border-radius: 12px;
  font-size: 16px;
  border: 2px solid rgba(224, 49, 49, 0.06);
  box-shadow: 0 10px 36px rgba(11, 11, 11, 0.12);
}

.message {
  margin-top: 12px;
  color: #0b3f00;
  font-weight: 600;
}

.footer {
  text-align: center;
  color: var(--muted);
  padding: 18px 0;
  font-size: 13px;
}

.container.font-small {
  font-size: 13px;
}
.container.font-small label,
.container.font-small .tool-label,
.container.font-small .lang-radio {
  font-size: 12px;
}
.container.font-small input,
.container.font-small select {
  font-size: 13px;
  padding: 8px;
}

.container.font-normal {
  font-size: 15px;
}
.container.font-normal label,
.container.font-normal .tool-label,
.container.font-normal .lang-radio {
  font-size: 13px;
}
.container.font-normal input,
.container.font-normal select {
  font-size: 14px;
  padding: 10px;
}

.container.font-high {
  font-size: 17px;
}
.container.font-high label,
.container.font-high .tool-label,
.container.font-high .lang-radio {
  font-size: 15px;
}
.container.font-high input,
.container.font-high select {
  font-size: 16px;
  padding: 12px;
}

.container.font-large {
  font-size: 20px;
}
.container.font-large label,
.container.font-large .tool-label,
.container.font-large .lang-radio {
  font-size: 18px;
}
.container.font-large input,
.container.font-large select {
  font-size: 19px;
  padding: 14px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 620px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .right-tools {
    justify-content: flex-end;
  }
}