:root {
  color-scheme: dark;
  --bg: #07060c;
  --panel: rgba(19, 14, 36, 0.88);
  --border: rgba(127, 104, 255, 0.4);
  --text: #f4f2ff;
  --muted: #b1a9d6;
  --accent: #8df6ff;
  --accent-2: #ff4bd2;
  --glow: 0 0 25px rgba(141, 246, 255, 0.35);
  --good: rgba(141, 246, 255, 0.92);
  --bad: rgba(255, 75, 210, 0.92);
  --glow-good: 0 0 25px rgba(141, 246, 255, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Orbitron", "Eurostile", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1c1140, var(--bg));
  color: var(--text);
  letter-spacing: 0.02em;
}

.sticky-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(19, 14, 36, 0.92);
  border-bottom: 1px solid rgba(141, 246, 255, 0.18);
  backdrop-filter: blur(10px);
}

.sticky-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem clamp(1.5rem, 3vw, 3.5rem);
}

.sticky-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.sticky-title {
  font-weight: 700;
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sticky-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.sticky-actions .btn {
  padding: 0.55rem 1.1rem;
}

.page-header {
  padding: 1.5rem clamp(1.5rem, 3vw, 3.5rem) 1rem;
  border-bottom: 1px solid rgba(141, 246, 255, 0.2);
}

.disclaimer {
  margin: 0 0 1.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(255, 75, 210, 0.45);
  background: rgba(20, 10, 34, 0.9);
  box-shadow: 0 0 15px rgba(255, 75, 210, 0.35);
  font-size: 0.95rem;
}

.title-row {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid rgba(141, 246, 255, 0.22);
  background: rgba(7, 4, 16, 0.45);
}

.sticky-header .brand-logo {
  width: 34px;
  height: 34px;
}

@media (max-width: 700px) {
  .sticky-title {
    font-size: 0.95rem;
  }

  #share-link {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    line-height: 1.1;
  }
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  text-shadow: var(--glow);
}

.subtitle {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 1.5rem clamp(1.5rem, 3vw, 3.5rem) 3rem;
}

.zone {
  display: grid;
  gap: 1.25rem;
}

.zone-header h2 {
  margin: 0;
  font-size: 1.5rem;
}

.zone-header p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.input-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 15px 40px rgba(9, 6, 19, 0.6);
  backdrop-filter: blur(8px);
}

.card-header h2 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
}

.card-header h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.card-header p {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.form-grid {
  display: grid;
  gap: 1rem;
  justify-items: start;
  align-items: start;
}

.field {
  display: grid;
  gap: 0.45rem;
  font-size: 0.85rem;
}

.field span {
  color: var(--muted);
}

input,
select,
button {
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
}

input,
select {
  background: rgba(9, 6, 22, 0.7);
  border: 1px solid rgba(141, 246, 255, 0.3);
  border-radius: 10px;
  padding: 0.5rem 0.65rem;
  outline: none;
  transition: border 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  max-width: 320px;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(141, 246, 255, 0.45);
}

.error {
  min-height: 1.1rem;
  color: #ff8abf;
  font-size: 0.75rem;
}

.btn {
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: linear-gradient(135deg, rgba(141, 246, 255, 0.2), rgba(255, 75, 210, 0.15));
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.btn.ghost {
  background: transparent;
  border-color: rgba(141, 246, 255, 0.4);
}

.btn:hover {
  box-shadow: var(--glow);
}

#calculate.btn {
  border-color: rgba(77, 255, 122, 0.9);
  background: linear-gradient(135deg, rgba(77, 255, 122, 0.32), rgba(77, 255, 122, 0.12));
  box-shadow: var(--glow-good);
}

#calculate.btn:hover {
  box-shadow: 0 0 32px rgba(77, 255, 122, 0.55);
}

.calculate-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.calculate-row .btn {
  min-width: 180px;
}

.calculate-hint {
  color: var(--muted);
  font-size: 0.85rem;
}

.mini-chart {
  margin-top: 1.5rem;
  padding: 0.75rem;
  background: rgba(7, 4, 16, 0.6);
  border-radius: 12px;
  border: 1px solid rgba(141, 246, 255, 0.2);
}

.output-controls-row {
  display: grid;
  grid-template-columns: minmax(220px, 360px) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: center;
  padding: 1rem;
  margin-bottom: 0.75rem;
}

.output-controls-meta h3 {
  margin: 0;
  font-size: 1.05rem;
}

.output-controls-meta p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.output-controls-grid {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.output-controls-grid .field {
  min-width: 180px;
  max-width: 260px;
}

.output-controls-grid .lookup-result {
  min-width: 220px;
  max-width: 320px;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 800px) {
  .output-controls-row {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .output-controls-grid .field {
    min-width: 220px;
    flex: 1 1 220px;
    max-width: none;
  }

  input,
  select {
    max-width: none;
  }
}

@media (min-width: 1100px) {
  .output-controls-grid {
    flex-wrap: nowrap;
  }
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.output-card {
  background: rgba(9, 5, 20, 0.75);
  border-radius: 14px;
  padding: 1rem;
  border: 1px solid rgba(141, 246, 255, 0.2);
}

.output-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  color: var(--accent);
}

.output-card canvas {
  max-height: 190px;
}

.table-wrap {
  max-height: 240px;
  overflow: auto;
}

.table-lookup {
  margin-top: 1rem;
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

.table-lookup .field {
  min-width: 200px;
  max-width: 320px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

thead th {
  text-align: left;
  padding-bottom: 0.5rem;
  color: var(--muted);
}

tbody td {
  padding: 0.35rem 0;
  border-bottom: 1px solid rgba(141, 246, 255, 0.08);
}

.lookup-result {
  display: grid;
  gap: 0.25rem;
  padding: 0.75rem;
  border-radius: 12px;
  border: 1px solid rgba(141, 246, 255, 0.2);
  background: rgba(14, 8, 28, 0.7);
}

.lookup-result .label {
  color: var(--muted);
  font-size: 0.75rem;
}

.lookup-result strong {
  font-size: 1.2rem;
  color: var(--accent);
}

.output-error {
  margin-top: 1rem;
  color: #ff8abf;
}

.explain-card {
  margin-top: 1.25rem;
  padding: 1.25rem;
  border-radius: 16px;
  border: 1px solid rgba(141, 246, 255, 0.22);
  background: rgba(9, 5, 20, 0.75);
  box-shadow: 0 15px 40px rgba(9, 6, 19, 0.45);
  font-family: "Holtwood One SC", "Orbitron", "Segoe UI", sans-serif;
  text-transform: uppercase;
  font-weight: 400;
}

.explain-title {
  font-weight: 600;
  font-size: 2rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  font-style: italic;
  text-shadow: 0 0 14px rgba(141, 246, 255, 0.18);
}

.explain-body {
  display: block;
  color: var(--text);
  font-size: 0.96rem;
  line-height: 1.28;
  font-style: italic;
  text-shadow: 0 0 10px rgba(141, 246, 255, 0.12);
}

.explain-body p {
  margin: 0 0 0.55rem;
}

.explain-body p:last-child {
  margin-bottom: 0;
}

.explain-token {
  display: inline-block;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.explain-token.tok-metric {
  color: var(--accent);
}

.explain-token.tok-good {
  color: var(--good);
}

.explain-token.tok-bad {
  color: var(--bad);
}

.explain-gif {
  margin-top: 0.75rem;
  display: flex;
  justify-content: center;
}

.explain-gif img {
  width: min(420px, 100%);
  border-radius: 14px;
  border: 1px solid rgba(255, 75, 210, 0.25);
  box-shadow: 0 0 20px rgba(255, 75, 210, 0.18);
}

.output-disabled {
  opacity: 0.35;
  pointer-events: none;
}

.output-stale {
  opacity: 0.6;
}

@media (min-width: 900px) {
  .form-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (max-width: 700px) {
  .page-header {
    padding: 1.5rem 1.5rem 1rem;
  }

  .layout {
    padding: 1.5rem;
  }
}