:root {
  --ink: #111713;
  --muted: #39443e;
  --paper: #f4f1e8;
  --white: #fffefa;
  --blue: #25b4c5;
  --blue-dark: #111713;
  --cyan: #25b4c5;
  --green: #c8f135;
  --line: rgba(30, 42, 36, 0.18);
  --grid: rgba(30, 42, 36, 0.07);
  --night: #111713;
  --night-soft: #1e2a24;
  --radius: 1.25rem;
  --shadow: 0 24px 60px rgba(16, 36, 48, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 42px 42px;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: -4rem;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--white);
  background: var(--night);
  border-radius: 0.5rem;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 2rem));
  margin: 1rem auto 0;
  padding: 0.7rem 0.8rem 0.7rem 1rem;
  background: rgba(244, 241, 232, 0.94);
  border: 1px solid rgba(216, 224, 227, 0.9);
  border-top: 6px solid var(--green);
  border-radius: 4rem;
  box-shadow: 0 10px 30px rgba(16, 36, 48, 0.08);
  backdrop-filter: blur(14px);
}

.wordmark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  color: var(--white);
  background: var(--night);
  border-radius: 50%;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.06em;
  box-shadow: 5px 5px 0 var(--cyan);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  text-decoration: none;
}

nav a:hover,
nav a:focus {
  color: var(--blue-dark);
}

nav .nav-cta {
  padding: 0.55rem 1rem;
  color: var(--white);
  background: var(--blue-dark);
  box-shadow: 4px 4px 0 var(--green);
  border-radius: 2rem;
}

main,
footer {
  overflow: hidden;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.7fr);
  gap: 5rem;
  align-items: center;
  width: min(1120px, calc(100% - 2rem));
  min-height: 720px;
  margin: 0 auto;
  padding: 6rem 0 5rem;
}

.hero::before {
  position: absolute;
  top: 4rem;
  right: -20rem;
  width: 38rem;
  height: 38rem;
  content: "";
  background: radial-gradient(circle, rgba(37, 180, 197, 0.22), rgba(37, 180, 197, 0));
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 840px;
  margin-bottom: 1.5rem;
  font-size: clamp(3.2rem, 7.6vw, 6.8rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}

h1 span {
  display: inline;
  color: var(--cyan);
}

.hero-summary {
  max-width: 700px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--blue-dark);
  border-radius: 0.7rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover,
.button:focus {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 91, 120, 0.16);
}

.button-primary {
  color: var(--white);
  background: var(--blue-dark);
  box-shadow: 5px 5px 0 var(--cyan);
}

.button-secondary {
  color: var(--ink);
  background: var(--paper);
}

.signal-card {
  position: relative;
  padding: 2rem;
  color: var(--white);
  background: linear-gradient(145deg, var(--night), var(--night-soft));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(2deg);
}

.signal-card::after {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  width: 4rem;
  height: 4rem;
  content: "";
  border-right: 4px solid var(--green);
  border-bottom: 4px solid var(--green);
}

.signal-label {
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.signal-title {
  margin-bottom: 1rem;
  font-size: 1.7rem;
  font-weight: 780;
  line-height: 1.1;
}

.signal-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: #d9e7eb;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto 6rem;
  background: rgba(255, 254, 250, 0.95);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 45px rgba(16, 36, 48, 0.06);
}

.metrics article {
  padding: 1.7rem;
  border-right: 1px solid var(--line);
}

.metrics article:last-child {
  border-right: 0;
}

.metrics strong,
.metrics span {
  display: block;
}

.metrics strong {
  color: var(--blue-dark);
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.metrics span {
  color: var(--muted);
  font-size: 0.87rem;
}

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

.section-heading {
  max-width: 700px;
  margin-bottom: 3rem;
}

.section-heading h2,
.closing h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.section-heading > p:last-child {
  color: var(--muted);
  font-size: 1.05rem;
}

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

.expertise-card {
  position: relative;
  min-height: 330px;
  padding: 2rem;
  background: rgba(255, 254, 250, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card-index {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.expertise-card h3,
.work-card h3,
.timeline-item h3 {
  margin: 1.2rem 0 0.7rem;
  font-size: 1.45rem;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

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

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 0.35rem 0.65rem;
  color: var(--ink);
  background: rgba(37, 180, 197, 0.18);
  border: 1px solid rgba(37, 180, 197, 0.28);
  border-radius: 2rem;
  font-size: 0.78rem;
  font-weight: 700;
}

.section-dark {
  width: 100%;
  max-width: none;
  padding-right: max(1rem, calc((100% - 1120px) / 2));
  padding-left: max(1rem, calc((100% - 1120px) / 2));
  color: var(--white);
  background: var(--night);
}

.section-dark .section-heading > p:last-child {
  color: #b9ccd3;
}

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

.work-card {
  padding: 2rem;
  background: var(--night-soft);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
}

.work-card-featured {
  grid-row: span 2;
  background: linear-gradient(145deg, #1e2a24, #263b31);
  border-top: 6px solid var(--green);
}

.work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.work-meta span {
  padding: 0.3rem 0.55rem;
  color: var(--cyan);
  border: 1px solid rgba(102, 214, 231, 0.28);
  border-radius: 2rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.work-card p,
.outcome-list {
  color: #c7d7dc;
}

.outcome-list {
  display: grid;
  gap: 0.65rem;
  margin: 2rem 0 0;
  padding-left: 1.2rem;
}

.stack {
  margin-bottom: 0;
  color: var(--cyan) !important;
  font-size: 0.85rem;
  font-weight: 700;
}

.work-card .text-link {
  display: inline-flex;
  margin-top: 1.25rem;
  color: var(--green);
}

.case-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.7fr);
  gap: 5rem;
  align-items: center;
  width: min(1120px, calc(100% - 2rem));
  min-height: 680px;
  margin: 0 auto;
  padding: 6rem 0 5rem;
}

.case-hero h1 {
  max-width: 900px;
}

.case-section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

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

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

.case-panel {
  padding: 2rem;
  background: rgba(255, 254, 250, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.case-panel-accent {
  border-top: 6px solid var(--cyan);
}

.case-panel h3 {
  margin-bottom: 0.75rem;
  font-size: 1.45rem;
  line-height: 1.15;
}

.case-panel p,
.lesson-list p {
  color: var(--muted);
}

.case-number {
  margin-bottom: 0.5rem;
  color: var(--green) !important;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.82rem;
  font-weight: 800;
}

.outcome-list-dark {
  margin-top: 1rem;
  color: var(--muted);
}

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

.lesson-list p {
  margin: 0;
  padding: 1.5rem;
  background: rgba(255, 254, 250, 0.96);
  border-left: 6px solid var(--green);
}

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

.safety-item {
  padding: 1.75rem;
  background: var(--night-soft);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.safety-item h3 {
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  line-height: 1.2;
}

.safety-item p:last-child {
  margin-bottom: 0;
  color: #c7d7dc;
}

.safety-warning {
  margin-top: 1rem;
  padding: 1.5rem;
  color: var(--ink);
  background: var(--green);
}

.safety-warning strong {
  display: block;
  margin-bottom: 0.35rem;
}

.evidence-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 2rem;
  align-items: center;
  margin-top: 3rem;
  padding: 2rem;
  background: var(--paper);
  color: var(--ink);
}

.evidence-panel img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
}

.case-closing {
  padding-top: 6rem;
}

.speaking {
  padding-bottom: 2rem;
}

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

.talk-card {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  padding: 2.5rem;
  color: var(--paper);
  background: var(--ink);
  border: 3px solid var(--ink);
  border-left: 12px solid var(--green);
  border-radius: var(--radius);
  box-shadow: 10px 10px 0 var(--cyan);
}

.talk-card-featured {
  grid-template-columns: minmax(180px, 0.45fr) minmax(0, 1.55fr);
  grid-column: 1 / -1;
}

.talk-card-compact {
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: start;
  box-shadow: 6px 6px 0 var(--cyan);
}

.talk-mark {
  display: grid;
  min-height: 180px;
  place-items: center;
  color: var(--ink);
  background: var(--cyan);
  font-family: Consolas, "Courier New", monospace;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
}

.talk-card-compact .talk-mark {
  min-height: 100px;
  font-size: 2rem;
}

.talk-platform {
  margin-bottom: 0.5rem;
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.talk-card h3 {
  max-width: 760px;
  margin-bottom: 0.8rem;
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

.talk-card-compact h3 {
  font-size: 1.6rem;
}

.talk-card p:not(.talk-platform) {
  max-width: 700px;
  color: #d5ddd8;
}

.text-link {
  display: inline-block;
  margin-top: 0.7rem;
  color: var(--cyan);
  font-weight: 800;
  text-underline-offset: 0.3rem;
}

.publication-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
  padding: 2rem;
  background: rgba(255, 254, 250, 0.96);
  border: 3px solid var(--ink);
  border-radius: var(--radius);
}

.publication-label {
  margin-bottom: 0.5rem;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.publication-card h3 {
  max-width: 820px;
  margin-bottom: 0.6rem;
  font-size: 1.35rem;
  line-height: 1.25;
}

.publication-card p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.speaker-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  margin-top: 1rem;
  padding: 2rem;
  background: var(--green);
  border: 3px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 var(--cyan);
}

.speaker-cta h3 {
  margin-bottom: 0.5rem;
  font-size: 1.65rem;
  letter-spacing: -0.025em;
}

.speaker-cta p:last-child {
  max-width: 760px;
  margin-bottom: 0;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline-item {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(0, 1.2fr);
  gap: 3rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}

.timeline-date {
  margin-bottom: 0.2rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.timeline-item h3 {
  margin: 0;
}

.organization,
.timeline-item > p {
  color: var(--muted);
}

.credentials {
  padding-top: 2rem;
}

.credentials-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  padding: 3rem;
  background: rgba(255, 254, 250, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.credentials-layout h3 {
  margin-bottom: 1.4rem;
}

.credential-list,
.education-list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.credential-list li {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--muted);
}

.credential-list span {
  min-width: 4.5rem;
  padding: 0.25rem 0.5rem;
  color: var(--ink);
  background: var(--green);
  border-radius: 0.4rem;
  font-size: 0.78rem;
  font-weight: 800;
  text-align: center;
}

.education-list li {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.education-list strong,
.education-list span {
  display: block;
}

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

.closing {
  width: min(1120px, calc(100% - 2rem));
  margin: 3rem auto 0;
  padding: 5rem;
  text-align: center;
  background: var(--green);
  border: 3px solid var(--ink);
  box-shadow: 10px 10px 0 var(--cyan);
  border-radius: var(--radius);
}

.closing h2 {
  max-width: 850px;
  margin-right: auto;
  margin-bottom: 2rem;
  margin-left: auto;
}

.closing-copy {
  max-width: 620px;
  margin-right: auto;
  margin-bottom: 1.5rem;
  margin-left: auto;
  font-size: 1.05rem;
}

.closing-actions {
  justify-content: center;
}

footer {
  display: flex;
  justify-content: space-between;
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0;
  color: var(--muted);
  font-size: 0.84rem;
}

footer p {
  margin: 0;
}

@media (max-width: 820px) {
  .site-header {
    position: static;
  }

  nav > a:not(.nav-cta) {
    display: none;
  }

  .hero,
  .case-hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    min-height: auto;
    padding-top: 5rem;
  }

  .hero > *,
  .case-hero > * {
    min-width: 0;
  }

  .signal-card {
    max-width: 100%;
    transform: none;
  }

  .signal-title,
  .signal-card li {
    overflow-wrap: anywhere;
  }

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

  .metrics article:nth-child(2) {
    border-right: 0;
  }

  .metrics article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .expertise-grid,
  .work-grid,
  .case-grid,
  .case-grid-three,
  .lesson-list,
  .safety-grid,
  .evidence-panel,
  .credentials-layout {
    grid-template-columns: 1fr;
  }

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

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

  .talk-card-featured {
    grid-column: auto;
  }

  .talk-mark {
    min-height: 130px;
  }

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

  .speaker-cta {
    grid-template-columns: 1fr;
  }

  .work-card-featured {
    grid-row: auto;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .closing {
    padding: 3rem 1.5rem;
  }
}

@media (max-width: 520px) {
  .site-header {
    width: calc(100% - 1rem);
    margin-top: 0.5rem;
    padding-left: 0.7rem;
  }

  nav {
    gap: 0.5rem;
  }

  nav .nav-cta {
    padding: 0.5rem 0.7rem;
    font-size: 0.78rem;
  }

  h1 {
    font-size: clamp(3rem, 18vw, 4.5rem);
  }

  .hero,
  .case-hero {
    padding-top: 3rem;
  }

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

  .metrics article,
  .metrics article:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metrics article:last-child {
    border-bottom: 0;
  }

  .section {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
  }

  .credentials-layout {
    padding: 1.5rem;
  }

  footer {
    display: grid;
    gap: 0.6rem;
  }
}

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

  .button {
    transition: none;
  }
}