:root {
  --bg: #06090f;
  --bg-deep: #03050a;
  --panel: rgba(10, 16, 24, 0.76);
  --panel-strong: rgba(9, 14, 22, 0.95);
  --panel-soft: rgba(255, 255, 255, 0.04);
  --border: rgba(137, 255, 209, 0.12);
  --border-soft: rgba(255, 255, 255, 0.08);
  --text: #edf9f4;
  --muted: #8ea39d;
  --accent: #74ffd8;
  --accent-2: #63afff;
  --accent-3: #b7f95b;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max-width: 1400px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(72, 155, 255, 0.12), transparent 24rem),
    radial-gradient(circle at 80% 10%, rgba(58, 255, 183, 0.12), transparent 28rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

input,
select {
  font: inherit;
}

.background {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.background-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(116, 255, 216, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116, 255, 216, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 85%);
}

.background-noise {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.7) 0 0.5px, transparent 0.6px),
    radial-gradient(circle at 70% 60%, rgba(255, 255, 255, 0.55) 0 0.5px, transparent 0.6px),
    radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.6) 0 0.5px, transparent 0.6px);
  background-size: 18px 18px, 22px 22px, 26px 26px;
}

.orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.35;
}

.orb-a {
  width: 28rem;
  height: 28rem;
  top: -4rem;
  left: -3rem;
  background: radial-gradient(circle, rgba(99, 175, 255, 0.9) 0%, rgba(99, 175, 255, 0) 70%);
}

.orb-b {
  width: 34rem;
  height: 34rem;
  right: -9rem;
  top: 8rem;
  background: radial-gradient(circle, rgba(116, 255, 216, 0.85) 0%, rgba(116, 255, 216, 0) 70%);
}

.scanline {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(116, 255, 216, 0.04) 48%,
    transparent 52%,
    transparent 100%
  );
  background-size: 100% 8px;
  opacity: 0.18;
}

.page-shell {
  position: relative;
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 72px;
}

.topbar,
.hero,
.visual-panel,
.provider-wall,
.compare-panel,
.calculator-panel,
.method-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 20px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 28px rgba(116, 255, 216, 0.65);
}

.brand-title {
  font-family: "Oxanium", sans-serif;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand-meta {
  color: var(--muted);
  font-size: 0.84rem;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  transition: color 160ms ease;
}

.nav-links a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.78fr);
  gap: 24px;
  padding: 34px;
}

.eyebrow,
.card-label,
.signal-label,
.price-table th,
.axis-label {
  font-family: "IBM Plex Mono", monospace;
}

.eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.hero h1,
.section-heading h2 {
  margin: 0;
  font-family: "Oxanium", sans-serif;
  font-weight: 700;
  line-height: 0.95;
}

.hero h1 {
  font-size: clamp(4rem, 11vw, 7.4rem);
  text-transform: uppercase;
  max-width: 7ch;
  text-shadow: 0 0 24px rgba(116, 255, 216, 0.14);
}

.hero-text,
.section-heading p,
.method-card p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #04120f;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  box-shadow: 0 18px 40px rgba(116, 255, 216, 0.2);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-soft);
}

.hero-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.hero-ribbon span,
.provider-chip,
.mode-badge,
.provider-badge {
  border-radius: 999px;
  padding: 8px 11px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.82rem;
}

.hero-panel {
  display: grid;
  gap: 14px;
}

.hero-card,
.signal-card,
.provider-card,
.chart-legend,
.chart-card,
.calculator-output,
.method-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--panel-soft);
}

.hero-card {
  padding: 18px;
}

.hero-card-primary {
  background: linear-gradient(180deg, rgba(116, 255, 216, 0.11), rgba(255, 255, 255, 0.03));
}

.card-label {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.card-value {
  font-size: 1.08rem;
  line-height: 1.5;
}

.card-note {
  color: var(--muted);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 18px 0 24px;
}

.signal-card {
  padding: 18px;
}

.signal-label {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.signal-value {
  margin-top: 10px;
  font-family: "Oxanium", sans-serif;
  font-size: clamp(1.65rem, 4vw, 2.8rem);
  font-weight: 700;
}

.signal-subtext {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.visual-panel,
.founder-panel,
.provider-wall,
.compare-panel,
.calculator-panel,
.method-panel,
.faq-panel {
  margin-top: 24px;
  padding: 28px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  gap: 20px;
  align-items: end;
  margin-bottom: 22px;
}

.section-heading h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

.chart-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 18px;
}

.chart-legend {
  padding: 18px;
  display: grid;
  gap: 12px;
  align-content: start;
}

.legend-row {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
}

.chart-card {
  padding: 12px;
  position: relative;
}

#scatter-chart {
  width: 100%;
  height: auto;
  display: block;
}

.axis-label {
  fill: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tick-label {
  font-family: "IBM Plex Mono", monospace;
  fill: rgba(255, 255, 255, 0.62);
  font-size: 11px;
}

.chart-point circle {
  transition: transform 120ms ease, stroke 120ms ease, fill-opacity 120ms ease;
  transform-origin: center;
}

.chart-point:hover circle {
  stroke: rgba(255, 255, 255, 0.9);
  fill-opacity: 1;
}

.chart-tooltip {
  position: absolute;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transform: translateY(2px);
  transition: opacity 120ms ease, transform 120ms ease;
  white-space: pre-line;
  max-width: 280px;
  background: rgba(5, 9, 14, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  padding: 8px 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  line-height: 1.45;
  color: #eaf8f3;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.4);
}

.chart-tooltip.show {
  opacity: 1;
  transform: translateY(0);
}

.provider-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.provider-card {
  position: relative;
  overflow: hidden;
  padding: 20px;
}

.provider-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -50% auto;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  opacity: 0.18;
  background: radial-gradient(circle, var(--provider-accent, rgba(116, 255, 216, 0.85)) 0%, transparent 70%);
}

.provider-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.provider-brand {
  display: flex;
  gap: 14px;
  align-items: center;
  min-width: 0;
}

.provider-logo {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  position: relative;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.provider-logo img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  position: relative;
  z-index: 2;
}

.provider-logo-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: "IBM Plex Mono", monospace;
  color: white;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  z-index: 1;
}

.provider-name {
  font-size: 1.18rem;
  font-weight: 700;
}

.provider-mode {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.provider-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.provider-chip {
  color: var(--muted);
}

.provider-notes {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

.provider-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.provider-links a {
  color: var(--accent);
  font-size: 0.92rem;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1.4fr) minmax(220px, 1fr) minmax(150px, 0.8fr) minmax(0, 1.4fr);
  gap: 14px;
  margin-bottom: 18px;
}

.field {
  display: grid;
  gap: 9px;
}

.field span {
  color: var(--muted);
  font-size: 0.9rem;
}

.field input,
.field select {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  background: var(--panel-strong);
  color: var(--text);
  padding: 0 14px;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: rgba(116, 255, 216, 0.36);
  box-shadow: 0 0 0 3px rgba(116, 255, 216, 0.1);
}

.table-shell {
  overflow: auto;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
}

.price-table {
  width: 100%;
  min-width: 1040px;
  border-collapse: collapse;
  background: rgba(5, 9, 14, 0.76);
}

.price-table th,
.price-table td {
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  text-align: left;
  vertical-align: top;
}

.price-table th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.model-id {
  font-weight: 700;
}

.model-upstream {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

.mono {
  font-family: "IBM Plex Mono", monospace;
}

.provider-badge {
  color: white;
  background: color-mix(in srgb, var(--badge-color, #63afff) 42%, transparent);
  display: inline-flex;
  align-items: center;
  white-space: nowrap !important;
  overflow: visible !important;
  text-overflow: clip !important;
  max-width: none;
}

.price-table th:nth-child(2),
.price-table td:nth-child(2) {
  min-width: 220px;
}

.provider-cell-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
}

.provider-cell-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  flex: 0 0 auto;
  background: var(--badge-color, #63afff);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.25);
}

.provider-cell-text {
  display: inline-block;
  white-space: nowrap;
  font-weight: 600;
}

.calculator-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  gap: 18px;
}

.calculator-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field-wide {
  grid-column: span 2;
}

.calculator-output {
  padding: 22px;
  display: grid;
  gap: 14px;
}

.calc-total {
  font-family: "Oxanium", sans-serif;
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 0.96;
}

.calc-meta {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.calc-breakdown,
.calc-breakdown-bars {
  display: grid;
  gap: 10px;
}

.calc-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
}

.calc-bar-row {
  display: grid;
  gap: 8px;
}

.calc-bar-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.calc-bar-fill {
  display: block;
  height: 100%;
  width: var(--fill, 0%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--fill-color, var(--accent)), rgba(255, 255, 255, 0.85));
}

.calc-compare {
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 0.92rem;
  border: 1px solid var(--border-soft);
  color: var(--muted);
}

.calc-compare.good {
  background: rgba(116, 255, 216, 0.08);
}

.calc-compare.warn {
  background: rgba(255, 189, 105, 0.08);
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.founder-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 18px;
}

.founder-copy,
.highlight-card,
.faq-item {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background: var(--panel-soft);
}

.founder-copy {
  padding: 22px;
  color: var(--muted);
  line-height: 1.75;
}

.founder-highlights {
  display: grid;
  gap: 16px;
}

.highlight-card {
  padding: 20px;
}

.highlight-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.highlight-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.faq-list {
  display: grid;
  gap: 16px;
}

.faq-item {
  padding: 20px;
}

.faq-item h3 {
  margin: 0 0 10px;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.method-card {
  padding: 20px;
}

.method-card h3 {
  margin: 0 0 12px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 18px;
  padding: 4px 6px 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.empty-state {
  padding: 24px;
  color: var(--muted);
}

@media (max-width: 1120px) {
  .hero,
  .section-heading,
  .chart-shell,
  .calculator-shell,
  .founder-grid {
    grid-template-columns: 1fr;
  }

  .signal-strip,
  .provider-grid,
  .method-grid,
  .calculator-form {
    grid-template-columns: 1fr 1fr;
  }

  .toolbar {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(calc(100% - 18px), var(--max-width));
    padding-top: 18px;
  }

  .topbar,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .visual-panel,
  .provider-wall,
  .compare-panel,
  .calculator-panel,
  .method-panel {
    padding: 20px;
  }

  .hero h1 {
    font-size: 3.2rem;
  }

  .signal-strip,
  .toolbar,
  .provider-grid,
  .method-grid,
  .calculator-form {
    grid-template-columns: 1fr;
  }

  .field-wide {
    grid-column: span 1;
  }
}