:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-deep: #050b14;
  --surface: #0d1a2a;
  --surface-strong: #112237;
  --surface-soft: rgba(16, 35, 55, 0.66);
  --text: #f2f7fb;
  --text-soft: #b7c5d4;
  --text-muted: #8294a8;
  --line: rgba(153, 184, 215, 0.17);
  --line-strong: rgba(139, 211, 222, 0.34);
  --teal: #56d4cc;
  --teal-bright: #7ce9e1;
  --blue: #67a8ff;
  --violet: #a78bfa;
  --success: #74e3b3;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --radius-sm: 0.65rem;
  --radius-md: 1rem;
  --radius-lg: 1.4rem;
  --shell: 1180px;
  --section-space: clamp(5rem, 9vw, 8rem);
  --step--1: clamp(0.875rem, 0.83rem + 0.18vw, 0.98rem);
  --step-0: clamp(1rem, 0.94rem + 0.25vw, 1.125rem);
  --step-1: clamp(1.18rem, 1.05rem + 0.55vw, 1.5rem);
  --step-2: clamp(1.65rem, 1.3rem + 1.35vw, 2.5rem);
  --step-3: clamp(2.35rem, 1.55rem + 3.1vw, 4.75rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 78% 7%, rgba(82, 141, 224, 0.13), transparent 28rem),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: var(--step-0);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(116, 159, 197, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116, 159, 197, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--teal-bright);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.8rem;
  left: 0.8rem;
  z-index: 100;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 2.5rem), var(--shell));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: var(--section-space);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  background: rgba(7, 17, 31, 0.82);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.nav-shell {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: -0.01em;
}

.brand img {
  border-radius: 0.55rem;
  box-shadow: 0 8px 28px rgba(86, 212, 204, 0.14);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 1.45rem;
  color: var(--text-soft);
  font-size: 0.91rem;
  font-weight: 650;
}

.primary-nav a {
  transition: color 160ms ease;
}

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

.primary-nav .nav-github {
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.6rem;
  color: var(--text);
}

.nav-toggle {
  display: none;
  width: 2.7rem;
  height: 2.7rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: var(--surface);
  color: var(--text);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 0.25rem auto;
  background: currentColor;
}

.hero {
  min-height: calc(100vh - 4.75rem);
  display: grid;
  align-items: center;
  overflow: hidden;
  padding-block: clamp(5rem, 10vw, 9rem);
}

.hero-glow {
  position: absolute;
  width: 28rem;
  height: 28rem;
  right: -8rem;
  top: 5rem;
  border-radius: 50%;
  background: rgba(93, 100, 244, 0.12);
  filter: blur(70px);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.82fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
}

.eyebrow,
.section-kicker {
  color: var(--teal-bright);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(18, 40, 58, 0.62);
}

.status-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(116, 227, 179, 0.1);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.08;
  text-wrap: balance;
}

h1 {
  max-width: 12ch;
  margin: 1.35rem 0 1.2rem;
  font-size: var(--step-3);
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 1.1rem;
  font-size: var(--step-2);
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 0.75rem;
  font-size: var(--step-1);
  letter-spacing: -0.025em;
}

.hero-lede {
  max-width: 650px;
  margin-bottom: 1rem;
  color: var(--text);
  font-size: clamp(1.25rem, 1.08rem + 0.7vw, 1.75rem);
  line-height: 1.4;
  letter-spacing: -0.02em;
}

.hero-detail {
  max-width: 650px;
  margin-bottom: 2rem;
  color: var(--text-soft);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.72rem 1.08rem;
  border: 1px solid transparent;
  border-radius: 0.72rem;
  font-size: 0.94rem;
  font-weight: 780;
  line-height: 1.2;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--teal-bright);
  color: #04131a;
  box-shadow: 0 12px 35px rgba(86, 212, 204, 0.16);
}

.button-primary:hover {
  background: #a0f5ef;
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(15, 34, 52, 0.72);
  color: var(--text);
}

.button-secondary:hover {
  border-color: rgba(124, 233, 225, 0.58);
  background: var(--surface-strong);
}

.text-link {
  padding: 0.7rem 0.3rem;
  color: var(--text-soft);
  font-size: 0.92rem;
  font-weight: 700;
}

.text-link:hover {
  color: var(--text);
}

.evidence-visual {
  position: relative;
  padding: 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(25, 51, 76, 0.72), rgba(9, 23, 38, 0.9)),
    var(--surface);
  box-shadow: var(--shadow);
}

.evidence-visual::before {
  position: absolute;
  inset: 0.55rem;
  border: 1px solid rgba(255, 255, 255, 0.035);
  border-radius: calc(var(--radius-lg) - 0.35rem);
  content: "";
  pointer-events: none;
}

.visual-topline,
.visual-footer {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0.55rem 0.95rem;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.verified-label {
  color: var(--success);
}

.evidence-stack {
  position: relative;
  display: grid;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(4, 13, 24, 0.56);
}

.evidence-node {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(13, 29, 46, 0.82);
}

.evidence-node-active {
  border-color: rgba(86, 212, 204, 0.5);
  background: linear-gradient(90deg, rgba(54, 147, 150, 0.16), rgba(13, 29, 46, 0.88));
}

.node-index,
.skill-number {
  color: var(--teal);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 800;
}

.evidence-node div {
  display: grid;
  gap: 0.12rem;
}

.evidence-node strong {
  font-size: 0.98rem;
}

.evidence-node div span {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.flow-arrow {
  justify-self: center;
  padding: 0.35rem;
  color: var(--text-muted);
  line-height: 1;
}

.visual-footer {
  justify-content: flex-start;
  padding-block: 0.95rem 0.25rem;
  letter-spacing: 0;
}

.visual-footer span {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
}

.legend-dot {
  display: inline-block;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
}

.dot-teal { background: var(--teal); }
.dot-violet { background: var(--violet); }

.problem-section {
  border-block: 1px solid var(--line);
  background: rgba(8, 21, 35, 0.62);
}

.problem-grid,
.idea-panel,
.section-intro,
.prompts-grid,
.privacy-panel,
.open-source-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2.5rem, 7vw, 7rem);
}

.section-heading h2 {
  max-width: 14ch;
  margin-top: 0.8rem;
}

.problem-copy > p,
.idea-panel > p,
.section-intro > p,
.prompts-copy > p,
.privacy-heading > p,
.open-source-grid p {
  color: var(--text-soft);
}

.risk-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-top: 1.6rem;
}

.risk-list span {
  padding: 0.72rem 0.8rem;
  border-left: 2px solid var(--violet);
  background: rgba(167, 139, 250, 0.06);
  color: var(--text-soft);
  font-size: 0.9rem;
}

.idea-panel {
  align-items: center;
  padding: clamp(2rem, 5vw, 4.5rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 20% 0%, rgba(86, 212, 204, 0.1), transparent 45%),
    var(--surface-soft);
  box-shadow: var(--shadow);
}

.idea-panel h2 {
  margin: 0.75rem 0 0;
  font-size: clamp(2.2rem, 1.7rem + 2vw, 4rem);
}

.idea-panel > p {
  margin: 0;
  font-size: var(--step-1);
}

.section-intro {
  align-items: end;
  margin-bottom: 2.5rem;
}

.section-intro h2 {
  margin: 0.75rem 0 0;
}

.section-intro > p {
  max-width: 570px;
  margin-bottom: 0.35rem;
}

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

.skill-card {
  min-height: 16rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(19, 41, 62, 0.72), rgba(9, 22, 36, 0.84));
  transition: transform 180ms ease, border-color 180ms ease;
}

.skill-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
}

.skill-card h3 {
  margin-top: 2.3rem;
}

.skill-card p {
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.workflow-section {
  border-block: 1px solid var(--line);
  background: rgba(8, 21, 35, 0.62);
}

.workflow-list {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  padding: 0;
  margin: 3rem 0 0;
  list-style: none;
}

.workflow-list li {
  position: relative;
  min-height: 8.5rem;
  padding: 0 1rem 1.2rem 0;
  border-top: 1px solid var(--line-strong);
}

.workflow-list li:not(:last-child)::after {
  position: absolute;
  top: -0.34rem;
  right: 0.8rem;
  color: var(--text-muted);
  content: "→";
  background: #081523;
  padding-inline: 0.35rem;
}

.workflow-list span {
  display: block;
  width: max-content;
  margin-top: -0.68rem;
  padding: 0 0.42rem;
  background: #081523;
  color: var(--teal);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
}

.workflow-list strong {
  display: block;
  max-width: 11ch;
  margin-top: 1.2rem;
  font-size: 0.93rem;
  line-height: 1.35;
}

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

.output-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 4vw, 2.7rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.output-card::after {
  position: absolute;
  width: 10rem;
  height: 10rem;
  right: -4rem;
  bottom: -4rem;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.12;
  content: "";
}

.output-ats { color: var(--teal-bright); }
.output-executive { color: #bcaaff; }

.output-label {
  margin-bottom: 3.2rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.11em;
}

.output-card h3 {
  color: var(--text);
}

.output-card p,
.output-card li {
  color: var(--text-soft);
}

.output-card ul {
  display: grid;
  gap: 0.55rem;
  padding-left: 1.2rem;
  margin: 1.5rem 0 0;
}

.prompts-section {
  background: linear-gradient(180deg, transparent, rgba(31, 55, 86, 0.16), transparent);
}

.prompts-copy {
  position: sticky;
  top: 7rem;
  align-self: start;
}

.prompts-copy h2 {
  margin-top: 0.8rem;
}

.prompt-list {
  display: grid;
  gap: 0.8rem;
}

.prompt-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  min-height: 6.2rem;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(13, 29, 46, 0.7);
}

.prompt-card code {
  color: #dce8f2;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  line-height: 1.65;
  white-space: normal;
}

.prompt-card button {
  padding: 0.48rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  font: inherit;
  font-size: 0.76rem;
  font-weight: 750;
}

.prompt-card button:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.privacy-panel {
  padding: clamp(2rem, 5vw, 4.5rem);
  border: 1px solid rgba(86, 212, 204, 0.34);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, rgba(23, 73, 78, 0.2), rgba(13, 26, 43, 0.82)),
    var(--surface);
  box-shadow: var(--shadow);
}

.privacy-heading h2 {
  margin-top: 0.75rem;
}

.privacy-details ul {
  display: grid;
  gap: 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.privacy-details li {
  position: relative;
  padding-left: 1.7rem;
  color: var(--text-soft);
}

.privacy-details li::before {
  position: absolute;
  left: 0;
  top: 0.1rem;
  color: var(--success);
  content: "✓";
  font-weight: 900;
}

.policy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.policy-links a {
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  color: var(--text-soft);
  font-size: 0.8rem;
  font-weight: 700;
}

.policy-links a:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.open-source-section {
  border-block: 1px solid var(--line);
  background: rgba(8, 21, 35, 0.62);
}

.open-source-grid {
  grid-template-columns: minmax(180px, 0.55fr) minmax(0, 1.45fr);
  align-items: center;
}

.license-mark {
  display: grid;
  width: clamp(9rem, 20vw, 13rem);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(103, 168, 255, 0.15), transparent 68%);
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(2.3rem, 5vw, 4rem);
}

.open-source-grid .button {
  margin-top: 0.9rem;
}

.final-cta-panel {
  display: grid;
  gap: 2rem;
  padding: clamp(2rem, 6vw, 5rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 85% 15%, rgba(167, 139, 250, 0.15), transparent 34%),
    radial-gradient(circle at 10% 100%, rgba(86, 212, 204, 0.12), transparent 32%),
    var(--surface-soft);
  box-shadow: var(--shadow);
}

.final-cta-panel h2 {
  max-width: 19ch;
  margin-top: 0.75rem;
  margin-bottom: 0;
}

.site-footer {
  padding: 3.5rem 0 1.5rem;
  border-top: 1px solid var(--line);
  background: #050b14;
}

.footer-grid {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 3rem;
}

.footer-brand {
  margin-bottom: 0.75rem;
}

.footer-grid p,
.footer-bottom {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.footer-grid p a:hover,
.footer-links a:hover {
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.65rem 1.2rem;
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 650;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 960px) {
  .hero-grid,
  .problem-grid,
  .idea-panel,
  .section-intro,
  .prompts-grid,
  .privacy-panel,
  .open-source-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-grid {
    max-width: 760px;
  }

  .hero-copy {
    max-width: 700px;
  }

  .evidence-visual {
    max-width: 620px;
  }

  .section-intro {
    align-items: start;
  }

  .skill-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    row-gap: 2rem;
  }

  .workflow-list li:nth-child(4)::after {
    display: none;
  }

  .prompts-copy {
    position: static;
  }

  .open-source-grid {
    grid-template-columns: minmax(130px, 0.35fr) minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(calc(100% - 1.5rem), var(--shell));
  }

  .site-header {
    background: rgba(7, 17, 31, 0.95);
  }

  .nav-toggle {
    display: block;
  }

  .primary-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: none;
    align-items: stretch;
    padding: 0.8rem 1rem 1rem;
    border-bottom: 1px solid var(--line);
    background: rgba(7, 17, 31, 0.98);
  }

  .primary-nav.is-open {
    display: grid;
  }

  .primary-nav a {
    padding: 0.65rem;
  }

  .primary-nav .nav-github {
    text-align: center;
  }

  .hero {
    min-height: auto;
  }

  .skill-grid,
  .output-grid,
  .open-source-grid {
    grid-template-columns: 1fr;
  }

  .skill-card {
    min-height: auto;
  }

  .workflow-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .workflow-list li {
    min-height: auto;
    padding: 0 0 1.7rem 2.8rem;
    border-top: 0;
    border-left: 1px solid var(--line-strong);
  }

  .workflow-list li:not(:last-child)::after {
    top: auto;
    right: auto;
    left: -0.55rem;
    bottom: 0.55rem;
    padding: 0.2rem;
    background: #081523;
    content: "↓";
  }

  .workflow-list span {
    position: absolute;
    left: -0.78rem;
    top: 0;
    margin: 0;
    padding: 0.15rem 0.36rem;
  }

  .workflow-list strong {
    max-width: none;
    margin-top: 0;
  }

  .risk-list {
    grid-template-columns: 1fr;
  }

  .license-mark {
    width: 8rem;
  }

  .footer-grid,
  .footer-bottom {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 520px) {
  .brand span {
    max-width: 12rem;
    line-height: 1.2;
  }

  .button-row,
  .button {
    width: 100%;
  }

  .text-link {
    width: auto;
  }

  .evidence-visual {
    padding: 0.7rem;
  }

  .evidence-stack {
    padding: 0.7rem;
  }

  .visual-topline,
  .visual-footer {
    flex-wrap: wrap;
  }

  .prompt-card {
    grid-template-columns: 1fr;
  }

  .prompt-card button {
    width: max-content;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}