:root {
  /* Nutbad brand */
  --nb-orange: #ff5f00;
  --nb-beige: #f8dfbb;
  --nb-black: #000000;
  --nb-white: #ffffff;

  --color-ink: var(--nb-black);
  --color-lab: var(--nb-white);
  --color-paper: var(--nb-white);
  --color-muted: rgba(0, 0, 0, 0.72);
  --color-border: rgba(0, 0, 0, 0.14);
  --color-border-2: rgba(0, 0, 0, 0.08);

  /* Accent */
  --color-accent: var(--nb-orange);
  --color-accent-ink: var(--nb-black);

  --header-bg: rgba(0, 0, 0, 0.92);
  --header-ink: rgba(248, 223, 187, 0.92);
  --header-ink-muted: rgba(248, 223, 187, 0.78);
  --header-border: rgba(255, 255, 255, 0.14);

  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  --font-serif: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.08);
  --max: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-lab);
  font-family: var(--font-serif);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  font-size: 18px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml;base64,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");
  pointer-events: none;
  z-index: 0;
  opacity: 0.28;
  mix-blend-mode: multiply;
}

.bg-grid {
  background-size: auto;
  background-image: none;
}

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

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
.brand,
.nav,
.btn {
  font-family: var(--font-sans);
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.glass-panel {
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--header-border);
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-logo {
  height: 84px;
  width: auto;
  display: block;
}

.brand-name {
  font-size: 15px;
}

.brand-pill {
  font-size: 12px;
  color: var(--header-ink);
  border: 1px solid rgba(248, 223, 187, 0.25);
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(248, 223, 187, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a:not(.btn) {
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--header-ink-muted);
}

.nav a:not(.btn):hover {
  background: rgba(248, 223, 187, 0.12);
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 13px;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  filter: brightness(0.98);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: rgba(0, 0, 0, 0.88);
}

.btn-ghost:hover {
  background: rgba(0, 0, 0, 0.06);
  text-decoration: none;
}

.btn-disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.hero {
  padding: 42px 0 10px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: start;
}

h1 {
  margin: 0 0 10px;
  font-size: 44px;
  line-height: 1.03;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0 0 14px;
  font-size: 20px;
  color: var(--color-muted);
}

.fine {
  margin: 14px 0 0;
  color: var(--color-muted);
  font-size: 14px;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.value-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.value {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  box-shadow: var(--shadow-sm);
}

.value .k {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(0, 0, 0, 0.65);
  font-family: var(--font-sans);
  font-weight: 800;
}

.value .v {
  display: block;
  font-weight: 800;
  letter-spacing: -0.01em;
  font-family: var(--font-sans);
  margin-top: 6px;
}

.card {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-lg);
}

.hero-card h2 {
  margin: 0 0 10px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(0, 0, 0, 0.65);
}

.bullets {
  margin: 0;
  padding-left: 18px;
}

.bullets li {
  margin: 8px 0;
}

.bullets-tight li {
  margin: 6px 0;
}

.section {
  padding: 30px 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.section-head h2 {
  margin: 0;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  color: var(--color-muted);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
}

.two-col > .card {
  grid-column: span 6;
}

.card h3 {
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  font-size: 18px;
}

.steps {
  margin: 0;
  padding-left: 20px;
}

.steps li {
  margin: 10px 0;
}

.cta-inline {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.calc {
  margin: 0;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 14px;
  align-items: start;
}

.calc-fields {
  display: grid;
  gap: 14px;
}

.calc-field {
  grid-column: auto;
}

.calc-field label {
  display: block;
  font-family: var(--font-sans);
  font-weight: 900;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.calc-controls {
  display: grid;
  grid-template-columns: 1fr 110px;
  gap: 10px;
  align-items: center;
}

.calc-controls input[type="range"] {
  width: 100%;
  accent-color: var(--color-accent);
}

.calc-controls input[type="number"] {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 10px 12px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 16px;
  background: rgba(255, 255, 255, 0.95);
}

.calc-output {
  border-left: 1px solid var(--color-border-2);
  padding-left: 18px;
}

.calc-kpis {
  display: grid;
  gap: 10px;
}

.kpi {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-sm);
}

.kpi-k {
  font-family: var(--font-sans);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: rgba(0, 0, 0, 0.65);
}

.kpi-v {
  margin-top: 6px;
  font-family: var(--font-sans);
  font-weight: 950;
  letter-spacing: -0.03em;
  font-size: 34px;
}

.kpi-v.is-negative {
  color: #b00020;
}

.price-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 12px;
}

.price {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.price-tag {
  font-family: var(--font-sans);
  font-weight: 950;
  letter-spacing: -0.03em;
  font-size: 44px;
}

.price-sub {
  color: var(--color-muted);
}

.footer {
  padding: 24px 0 74px;
  color: var(--color-muted);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

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

.mobile-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: none;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border-2);
  z-index: 20;
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 38px;
  }

  .value-row {
    grid-template-columns: 1fr;
  }

  .two-col > .card {
    grid-column: span 12;
  }

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

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

  .calc-output {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid var(--color-border-2);
    padding-top: 14px;
  }

  .mobile-cta {
    display: flex;
  }
}