:root {
  color-scheme: dark;
  --bg: #0b1120;
  --panel: #111827;
  --panel-strong: #172033;
  --text: #eef4ff;
  --muted: #aab7cc;
  --line: rgba(170, 183, 204, 0.2);
  --accent: #38d6a6;
  --accent-strong: #15b887;
  --blue: #67a7ff;
  --warning: #f7c948;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(56, 214, 166, 0.16), transparent 34rem),
    linear-gradient(180deg, #0b1120 0%, #0d1424 45%, #0b1120 100%);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3rem);
  border-bottom: 1px solid var(--line);
  background: rgba(11, 17, 32, 0.84);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border: 1px solid rgba(56, 214, 166, 0.5);
  border-radius: var(--radius);
  background: rgba(56, 214, 166, 0.12);
  color: var(--accent);
  font-size: 0.85rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.6rem);
  color: var(--muted);
  font-size: 0.94rem;
}

.nav a {
  text-decoration: none;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--text);
}

.nav a.is-active,
.nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 700;
}

.section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  min-height: calc(100vh - 72px);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(3rem, 8vw, 5.6rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 0.65rem;
  font-size: 1.08rem;
}

.hero-text,
.section-heading p,
.about-section p,
.contact-section p {
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-text {
  max-width: 62ch;
  margin: 1.4rem 0 0;
}

.hero-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.6rem;
}

.button {
  display: inline-flex;
  min-height: 2.85rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--accent);
  color: #052015;
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #62e5bd;
}

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

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: rgba(56, 214, 166, 0.55);
}

.signal-panel,
.case-card,
.results-card,
.project-list article,
.capability-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(17, 24, 39, 0.82);
  box-shadow: var(--shadow);
}

.signal-panel {
  padding: 1.2rem;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.status-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 0.35rem rgba(56, 214, 166, 0.12);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1rem 0 0;
}

.signal-grid div {
  min-height: 6.3rem;
  padding: 1rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

dt {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

dd {
  margin: 0.4rem 0 0;
  font-size: 1.25rem;
  font-weight: 800;
}

.intro-band {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 2rem;
  align-items: start;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability-grid,
.case-grid,
.project-list {
  display: grid;
  gap: 1rem;
}

.capability-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.capability-grid article,
.project-list article {
  padding: 1.2rem;
}

.capability-grid p,
.project-list p,
.case-card p,
.fine-print {
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.6rem;
}

.case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.case-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.2rem;
}

.case-card p {
  margin: 0;
  font-size: 0.95rem;
}

.case-topline {
  display: grid;
  gap: 0.55rem;
}

.tag {
  width: fit-content;
  border: 1px solid rgba(103, 167, 255, 0.35);
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  background: rgba(103, 167, 255, 0.1);
  color: #9fc4ff;
  font-size: 0.74rem;
  font-weight: 800;
}

.impact-row {
  display: grid;
  gap: 0.55rem;
  margin: 0.2rem 0;
}

.impact-row span {
  border-left: 3px solid var(--accent);
  padding: 0.45rem 0.65rem;
  background: rgba(56, 214, 166, 0.08);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
}

.live-impact {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.2rem;
}

.live-impact div {
  border: 1px solid rgba(56, 214, 166, 0.3);
  border-radius: var(--radius);
  padding: 0.8rem;
  background: rgba(56, 214, 166, 0.08);
}

.live-impact span {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

.live-impact strong {
  display: block;
  margin-top: 0.25rem;
  color: var(--accent);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  line-height: 1;
}

.calculator-section {
  width: min(1180px, calc(100% - 2rem));
}

.calculator-shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(320px, 1.15fr);
  gap: 1rem;
  align-items: start;
}

.calculator-form,
.results-card {
  padding: 1.2rem;
}

.calculator-form {
  display: grid;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.035);
}

label {
  position: relative;
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-weight: 700;
}

input,
select {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0d1526;
  color: var(--text);
  font: inherit;
  padding: 0.65rem 0.75rem;
}

input:focus,
select:focus,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(56, 214, 166, 0.35);
  outline-offset: 2px;
}

.field-prefix {
  position: absolute;
  top: 2.45rem;
  left: 0.75rem;
  color: var(--muted);
}

#hourlyCost {
  padding-left: 1.65rem;
}

input[type="range"] {
  min-height: 1.5rem;
  padding: 0;
  accent-color: var(--accent);
}

.range-value {
  color: var(--text);
}

.field-pair {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 0.8rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.metric-grid div {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.metric-grid span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.metric-grid strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--accent);
  font-size: clamp(1.45rem, 4vw, 2.3rem);
  line-height: 1;
}

.summary-box {
  margin: 1rem 0 0;
  border: 1px solid rgba(56, 214, 166, 0.32);
  border-radius: var(--radius);
  padding: 1rem;
  background: rgba(56, 214, 166, 0.08);
  color: var(--text);
}

.project-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-list span {
  display: block;
  margin-top: 1rem;
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 800;
}

.repo-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 0.35rem;
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.repo-link:hover,
.repo-link:focus-visible {
  text-decoration: underline;
}

.about-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 2rem;
  align-items: start;
  border-top: 1px solid var(--line);
}

.contact-section {
  max-width: 880px;
  text-align: center;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 1rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  border: 1px solid rgba(56, 214, 166, 0.45);
  border-radius: var(--radius);
  padding: 0.7rem 1rem;
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.social-link:hover,
.social-link:focus-visible {
  border-color: var(--accent);
  background: rgba(56, 214, 166, 0.08);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem clamp(1rem, 4vw, 3rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.2rem;
  }

  .hero,
  .intro-band,
  .calculator-shell,
  .about-section {
    grid-template-columns: 1fr;
  }

  .capability-grid,
  .case-grid,
  .project-list {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  .section {
    width: min(100% - 1rem, 1120px);
  }

  h1 {
    font-size: 3rem;
  }

  .field-pair,
  .metric-grid,
  .signal-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions .button,
  .result-actions .button {
    width: 100%;
  }
}