/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #080c14;
  --panel:     #0f1520;
  --panel-alt: #131a28;
  --border:    #1e2a3a;
  --text:      #c8d6e5;
  --text-dim:  #5a6a7e;
  --accent:    #3b9eff;
  --accent-dim:#1a4a7a;
  --green:     #2ecc71;
  --red:       #e74c3c;
  --mono:      'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --sans:      'Inter', -apple-system, 'Segoe UI', sans-serif;
}

html { font-size: 14px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ===== DATA BAR ===== */
.data-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  text-transform: uppercase;
  flex-wrap: nowrap;
  overflow: hidden;
}

.data-bar .item {
  white-space: nowrap;
  flex-shrink: 0;
}

.data-bar .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  display: inline-block;
  margin-right: 6px;
}

.data-bar .label { color: var(--text-dim); }
.data-bar .value { color: var(--text); }
.data-bar .positive { color: var(--green); }
.data-bar .negative { color: var(--red); }

/* Progressive hide — right to left */
@media (max-width: 1100px) {
  .data-bar .p4 { display: none; }
}
@media (max-width: 900px) {
  .data-bar .p3, .data-bar .p4 { display: none; }
}
@media (max-width: 700px) {
  .data-bar .p2, .data-bar .p3, .data-bar .p4 { display: none; }
  .data-bar { gap: 16px; }
}
@media (max-width: 480px) {
  .data-bar .p1, .data-bar .p2, .data-bar .p3, .data-bar .p4 { display: none; }
  .data-bar { gap: 12px; padding: 10px 14px; font-size: 10px; }
}   

/* ===== LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
}

/* ===== HEADER ===== */
.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 40px;
}

.site-header h1 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.site-header .sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ===== GRID ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (max-width: 768px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== GRID CELL ===== */
.cell {
  background: var(--panel);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  transition: background 0.15s ease;
  position: relative;
}

.cell:hover {
  background: var(--panel-alt);
}

.cell-index {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 300;
  /*color: #1e3a5f;*/
  color: #4a6fa5;  /* subdued denim blue */
  transition: color 0.15s ease;
}

.cell:hover .cell-index {
  color: var(--accent);
}

.cell-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}

.cell-desc {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
}

.cell-status {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  transition: background 0.15s ease;
}

.cell:hover .cell-status {
  background: #5dfc92;
}

/* ===== CALCULATOR PAGES ===== */
.calc-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.calc-header .breadcrumb {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.calc-header .breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
}

.calc-header .breadcrumb a:hover {
  color: var(--accent);
}

.calc-header h1 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.calc-header .module-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 6px;
}

/* ===== CALCULATOR BODY ===== */
.calc-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .calc-body { grid-template-columns: 1fr; }
}

.calc-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 24px;
}

.calc-panel h3 {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.calc-panel .field {
  margin-bottom: 16px;
}

.calc-panel .field label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.calc-panel .field input,
.calc-panel .field select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.15s;
}

.calc-panel .field input:focus,
.calc-panel .field select:focus {
  border-color: var(--accent);
}

.calc-panel .field input::placeholder {
  color: var(--text-dim);
  opacity: 0.5;
}

.calc-panel .field select {
  appearance: none;
  cursor: pointer;
}

/* ===== RESULT PANEL ===== */
.result-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 16px;
}

.result-value {
  font-family: var(--mono);
  font-size: 42px;
  font-weight: 300;
  color: var(--text);
  letter-spacing: -0.02em;
}

.result-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.result-sub {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}

/* ===== STATE GRID ===== */
.state-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .state-grid { grid-template-columns: repeat(3, 1fr); }
}

.state-cell {
  background: var(--panel);
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s;
  border: none;
  text-align: left;
}

.state-cell:hover {
  background: var(--panel-alt);
  color: var(--accent);
}

.state-cell.active {
  background: var(--accent-dim);
  color: var(--text);
}

.state-cell .no-tax {
  color: var(--green);
  font-size: 10px;
  margin-left: 4px;
}

/* ===== FOOTER ===== */
.site-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  justify-content: space-between;
}