:root {
  --ink: #121827;
  --paper: #f7f1e6;
  --blue: #1f6fff;
  --coral: #ff6d57;
  --green: #2fbf71;
  --muted: #697386;
  --card: #fffaf1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

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

.header {
  max-width: 1220px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  font-weight: 950;
  letter-spacing: -0.03em;
}

nav {
  display: flex;
  gap: 24px;
  font-weight: 800;
  color: var(--muted);
}

.hero {
  max-width: 1220px;
  min-height: 86vh;
  margin: 0 auto;
  padding: 70px 24px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 52px;
  align-items: center;
}

.eyebrow {
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(3.4rem, 7.4vw, 8rem);
  line-height: 0.86;
  letter-spacing: -0.085em;
}

h2 {
  font-size: clamp(2.1rem, 4.6vw, 5rem);
  line-height: 0.92;
  letter-spacing: -0.065em;
}

p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-copy > p:last-of-type {
  max-width: 720px;
  font-size: 1.16rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.actions a,
button {
  border: 0;
  border-radius: 999px;
  padding: 14px 19px;
  background: var(--ink);
  color: white;
  font-weight: 900;
  cursor: pointer;
}

.actions a:last-child {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(18, 24, 39, 0.18);
}

.system-map {
  position: relative;
  min-height: 540px;
  border-radius: 50px;
  background: radial-gradient(circle at 50% 45%, rgba(31, 111, 255, 0.22), transparent 16rem), var(--card);
  box-shadow: 0 36px 90px rgba(18, 24, 39, 0.12);
  overflow: hidden;
}

.system-map::before,
.system-map::after {
  content: "";
  position: absolute;
  inset: 86px;
  border: 2px dashed rgba(31, 111, 255, 0.22);
  border-radius: 50%;
}

.system-map::after {
  inset: 150px;
  border-color: rgba(255, 109, 87, 0.26);
}

.node {
  position: absolute;
  min-width: 126px;
  padding: 13px 16px;
  border-radius: 999px;
  background: white;
  color: var(--ink);
  font-weight: 900;
  text-align: center;
  box-shadow: 0 14px 35px rgba(18, 24, 39, 0.14);
}

.node.core {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--blue);
  color: white;
}

.node:nth-child(2) {
  left: 12%;
  top: 18%;
}

.node:nth-child(3) {
  right: 10%;
  top: 22%;
}

.node:nth-child(4) {
  left: 10%;
  bottom: 22%;
}

.node:nth-child(5) {
  right: 13%;
  bottom: 18%;
}

.node:nth-child(6) {
  left: 50%;
  bottom: 8%;
  transform: translateX(-50%);
  background: var(--green);
  color: white;
}

.solutions,
.architecture,
.outcomes,
.statement,
footer {
  max-width: 1220px;
  margin: 0 auto;
  padding: 76px 24px;
}

.section-title {
  max-width: 840px;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.solution-grid article,
.outcome-list div,
.accordion-panel {
  background: var(--card);
  border: 1px solid rgba(18, 24, 39, 0.08);
  border-radius: 28px;
  padding: 26px;
}

.solution-grid span {
  color: var(--blue);
  font-weight: 950;
}

.architecture {
  max-width: none;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  background: var(--ink);
  color: white;
  padding-left: max(24px, calc((100vw - 1220px) / 2));
  padding-right: max(24px, calc((100vw - 1220px) / 2));
}

.architecture p {
  color: rgba(255, 255, 255, 0.72);
}

.architecture .eyebrow {
  color: #ffb4a6;
}

.accordion {
  display: grid;
  gap: 12px;
  align-content: start;
}

.accordion-button {
  width: 100%;
  text-align: left;
  background: rgba(255, 255, 255, 0.1);
}

.accordion-button.active {
  background: var(--coral);
}

.accordion-panel {
  background: rgba(255, 255, 255, 0.08);
}

.outcome-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.statement {
  text-align: center;
}

.statement p {
  max-width: 1020px;
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(1.7rem, 3.5vw, 3.8rem);
  line-height: 1.1;
  letter-spacing: -0.055em;
}

footer {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 34px;
}

footer a {
  color: var(--blue);
  font-weight: 900;
}

form {
  display: grid;
  gap: 14px;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(18, 24, 39, 0.14);
  border-radius: 18px;
  background: var(--card);
  padding: 16px;
  font: inherit;
}

textarea {
  min-height: 135px;
  resize: vertical;
}

form button {
  background: var(--blue);
}

.form-message {
  min-height: 24px;
  margin: 0;
}

@media (max-width: 880px) {
  .header,
  nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero,
  .solution-grid,
  .architecture,
  .outcome-list,
  footer {
    grid-template-columns: 1fr;
  }

  .system-map {
    min-height: 420px;
  }
}