:root {
  --ink: #071015;
  --paper: #f5f7f4;
  --muted: #617079;
  --line: rgba(9, 24, 31, 0.14);
  --cyan: #22c7dd;
  --coral: #ff6b57;
  --green: #7cc67b;
  --gold: #d2a542;
  --panel: rgba(255, 255, 255, 0.78);
  --shadow: 0 22px 70px rgba(7, 16, 21, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 5% 20%, rgba(34, 199, 221, 0.12), transparent 28rem),
    radial-gradient(circle at 95% 12%, rgba(255, 107, 87, 0.1), transparent 24rem),
    linear-gradient(180deg, #f8faf7 0%, #eef3f0 48%, #f7f8f3 100%);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.55;
  overflow-x: hidden;
}

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

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

.signal-field {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.45;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 3.5rem);
  color: #fff;
  background: linear-gradient(180deg, rgba(4, 12, 17, 0.86), rgba(4, 12, 17, 0.28));
  backdrop-filter: blur(14px);
}

.site-header.scrolled {
  color: var(--ink);
  background: rgba(247, 249, 246, 0.88);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 40px rgba(7, 16, 21, 0.08);
}

.brand,
.site-header nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand {
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 2.1rem;
  color: #061016;
  background: linear-gradient(135deg, var(--cyan), #ffffff 58%, var(--green));
  border-radius: 0.45rem;
  box-shadow: 0 10px 25px rgba(34, 199, 221, 0.25);
}

.site-header nav a {
  font-size: 0.92rem;
  font-weight: 700;
  opacity: 0.86;
}

.site-header nav a:hover {
  opacity: 1;
}

.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: center;
  padding: 6.2rem clamp(1.2rem, 5vw, 5rem) 1.6rem;
  color: #fff;
  overflow: hidden;
}

.hero-media,
.hero-media img,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.08) contrast(1.04);
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(4, 12, 17, 0.95) 0%, rgba(4, 12, 17, 0.76) 38%, rgba(4, 12, 17, 0.16) 100%),
    linear-gradient(0deg, rgba(4, 12, 17, 0.74) 0%, rgba(4, 12, 17, 0) 38%);
}

.hero-content {
  position: relative;
  width: min(860px, 100%);
  min-width: 0;
}

.kicker {
  margin: 0 0 0.85rem;
  color: var(--cyan);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 1rem;
  font-size: clamp(2.75rem, 5vw, 4.7rem);
  line-height: 0.98;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.15rem;
  line-height: 1.2;
}

.hero-copy {
  max-width: 720px;
  margin-bottom: 1.25rem;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1rem, 1.65vw, 1.16rem);
}

.hero-actions,
.hero-facts,
.assessment-grid,
.emphasis,
.resource-controls {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 0.45rem;
  font-weight: 800;
}

.button.primary {
  color: #031116;
  background: linear-gradient(135deg, var(--cyan), #ffffff);
  border-color: transparent;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.hero-facts {
  margin-top: 1rem;
}

.hero-facts div {
  width: min(190px, 100%);
  padding: 0.72rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.hero-facts strong {
  display: block;
  font-size: 1.35rem;
  line-height: 1.1;
}

.hero-facts span {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.88rem;
}

.section {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 7vw, 7rem) 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.section-heading.wide {
  max-width: 980px;
}

.section-comment {
  max-width: 860px;
  margin: 1rem 0 0;
  color: #43515a;
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}

.feature-panel,
.video-shell,
.agentic-points article,
.support-strip,
.resources {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.feature-panel {
  padding: clamp(1.2rem, 3vw, 2rem);
}

.feature-panel p {
  color: #29373f;
  font-size: 1.04rem;
}

.bridge-diagram {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(90px, 0.4fr) minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  font-weight: 800;
}

.bridge-diagram span {
  min-height: 4rem;
  display: grid;
  place-items: center;
  padding: 0.6rem;
  border-radius: 0.45rem;
  background: #071015;
  color: #fff;
  text-align: center;
}

.bridge-diagram b {
  height: 0.2rem;
  background: linear-gradient(90deg, var(--cyan), var(--coral), var(--green));
  border-radius: 99rem;
  position: relative;
}

.bridge-diagram b::before,
.bridge-diagram b::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0.72rem;
  height: 0.72rem;
  border-top: 0.2rem solid var(--coral);
  border-right: 0.2rem solid var(--coral);
}

.bridge-diagram b::before {
  left: 0;
  transform: translateY(-50%) rotate(-135deg);
}

.bridge-diagram b::after {
  right: 0;
  transform: translateY(-50%) rotate(45deg);
}

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

.emphasis-card,
.assessment-grid article,
.timeline article {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 16px 44px rgba(7, 16, 21, 0.08);
}

.emphasis-card {
  padding: 1.35rem;
  border-top: 0.3rem solid var(--cyan);
}

.emphasis-card:nth-child(2) {
  border-top-color: var(--coral);
}

.emphasis-card:nth-child(3) {
  border-top-color: var(--green);
}

.emphasis-card p,
.timeline p,
.assessment-grid p,
.support-strip p,
.outcome-list,
.resource-panel {
  color: #43515a;
}

.video-shell {
  overflow: hidden;
}

.video-shell video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #071015;
}

.video-caption {
  padding: 1rem 1.15rem 1.1rem;
  border-top: 1px solid var(--line);
}

.video-caption p {
  margin: 0;
  color: #40515b;
  font-size: 0.94rem;
}

.agentic-section {
  width: min(1280px, calc(100% - 2rem));
}

.agentic-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.75fr);
  gap: 1rem;
  align-items: stretch;
}

.agentic-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}

.agentic-points article {
  padding: 1rem 1.05rem;
}

.agentic-points span {
  display: inline-flex;
  margin-bottom: 0.5rem;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 800;
}

.agentic-points p {
  margin-bottom: 0;
  color: #43515a;
  font-size: 0.96rem;
}

.agentic-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.68);
  color: #43515a;
  font-size: 0.9rem;
}

.agentic-sources span {
  color: var(--ink);
  font-weight: 800;
}

.agentic-sources a {
  color: #0b6775;
  font-weight: 700;
}

.agentic-sources a::after {
  content: "/";
  margin-left: 0.55rem;
  color: rgba(7, 16, 21, 0.26);
}

.agentic-sources a:last-child::after {
  content: "";
  margin-left: 0;
}

code {
  padding: 0.08rem 0.3rem;
  border-radius: 0.3rem;
  background: rgba(7, 16, 21, 0.08);
  font-size: 0.9em;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.timeline article {
  min-height: 260px;
  padding: 1.15rem;
  position: relative;
  overflow: hidden;
}

.timeline article::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 0.28rem;
  background: linear-gradient(90deg, var(--cyan), var(--coral), var(--green), var(--gold));
}

.timeline span {
  display: inline-flex;
  margin-bottom: 0.8rem;
  color: #0c6f7c;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.assessment {
  width: min(1280px, calc(100% - 2rem));
}

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

.assessment-grid article {
  padding: 1.4rem;
}

.assessment-grid strong {
  display: block;
  margin-bottom: 0.9rem;
  color: var(--coral);
  font-size: clamp(2.3rem, 5vw, 4rem);
  line-height: 0.95;
}

.support-strip {
  margin-top: 1rem;
  padding: 1.25rem 1.4rem;
  background: #071015;
  color: #fff;
}

.support-strip p {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
}

.outcome-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.outcome-list li {
  min-height: 5rem;
  padding: 1.05rem 1.1rem 1.05rem 3rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.72);
  position: relative;
}

.outcome-list li::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.18rem;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--coral));
  box-shadow: 0 0 0 0.32rem rgba(34, 199, 221, 0.12);
}

.resources {
  padding-left: clamp(1rem, 3vw, 2rem);
  padding-right: clamp(1rem, 3vw, 2rem);
}

.resource-controls {
  margin-bottom: 1rem;
}

.resource-tab {
  min-height: 2.6rem;
  padding: 0 1rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  color: #26343c;
  background: rgba(255, 255, 255, 0.76);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.resource-tab.active {
  color: #fff;
  background: #071015;
  border-color: #071015;
}

.resource-panel {
  display: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  padding-top: 0.5rem;
}

.resource-panel.active {
  display: grid;
}

.resource-panel a,
.resource-panel p {
  margin: 0;
  min-height: 3.35rem;
  display: flex;
  align-items: center;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: rgba(255, 255, 255, 0.74);
}

.resource-panel a {
  color: #0b6775;
  font-weight: 700;
}

.resource-panel a:hover {
  border-color: rgba(34, 199, 221, 0.62);
  background: #fff;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1rem, 4vw, 3.5rem);
  color: rgba(255, 255, 255, 0.7);
  background: #071015;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: #fff;
  font-weight: 800;
}

@media (max-width: 980px) {
  .site-header {
    position: absolute;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    min-height: 780px;
  }

  .intro-grid,
  .emphasis,
  .agentic-layout,
  .assessment-grid,
  .outcome-list {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  h1 {
    font-size: clamp(2.45rem, 12vw, 3rem);
  }

  h2 {
    font-size: 2.05rem;
  }

  .hero {
    min-height: 690px;
    padding-top: 6rem;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(4, 12, 17, 0.82) 0%, rgba(4, 12, 17, 0.72) 42%, rgba(4, 12, 17, 0.86) 100%),
      linear-gradient(90deg, rgba(4, 12, 17, 0.9), rgba(4, 12, 17, 0.2));
  }

  .button,
  .resource-tab {
    width: 100%;
  }

  .hero-facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .hero-facts div {
    width: auto;
    padding: 0.55rem 0.5rem;
  }

  .hero-facts strong {
    font-size: 1.05rem;
  }

  .hero-facts span {
    font-size: 0.72rem;
    line-height: 1.2;
  }

  .timeline,
  .resource-panel {
    grid-template-columns: 1fr;
  }

  .bridge-diagram {
    grid-template-columns: 1fr;
  }

  .bridge-diagram b {
    width: 0.2rem;
    min-height: 3.6rem;
    justify-self: center;
    background: linear-gradient(180deg, var(--cyan), var(--coral), var(--green));
  }

  .bridge-diagram b::before,
  .bridge-diagram b::after {
    left: 50%;
    right: auto;
  }

  .bridge-diagram b::before {
    top: 0;
    transform: translateX(-50%) rotate(-45deg);
  }

  .bridge-diagram b::after {
    top: auto;
    bottom: 0;
    transform: translateX(-50%) rotate(135deg);
  }

  .site-footer {
    flex-direction: column;
  }
}

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

  .signal-field {
    display: none;
  }
}