:root {
  color-scheme: dark;
  --bg: #071013;
  --bg-soft: #0b171b;
  --panel: #101d22;
  --panel-2: #13272d;
  --text: #edf7f4;
  --muted: #9db2b3;
  --line: rgba(166, 227, 214, 0.16);
  --accent: #46dfc5;
  --accent-2: #87b9ff;
  --warn: #f5c76b;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 18% 12%, rgba(70, 223, 197, 0.18), transparent 26rem),
    radial-gradient(circle at 82% 18%, rgba(135, 185, 255, 0.14), transparent 26rem),
    linear-gradient(180deg, #081216 0%, #071013 42%, #091215 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

p,
li {
  color: var(--muted);
  line-height: 1.7;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 19, 0.82);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(70, 223, 197, 0.18), rgba(135, 185, 255, 0.1));
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 14px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a,
.button {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px;
  padding: 0 14px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.button {
  border: 1px solid rgba(70, 223, 197, 0.34);
  color: #041412;
  background: var(--accent);
  box-shadow: 0 10px 30px rgba(70, 223, 197, 0.18);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  box-shadow: none;
}

.hero {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 76px 0 58px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 54px;
  align-items: center;
}

.hero h1 {
  margin: 0;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 0.95;
  letter-spacing: 0;
  max-width: 780px;
}

.hero h1 span {
  color: var(--accent);
}

.hero-copy {
  margin: 26px 0 0;
  max-width: 700px;
  font-size: clamp(18px, 2vw, 22px);
  color: #c9dbd8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel img {
  display: block;
  width: 100%;
  aspect-ratio: 1.85 / 1;
  object-fit: cover;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.signal {
  padding: 18px;
  min-height: 112px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signal:nth-child(2n) {
  border-right: 0;
}

.signal:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.signal strong {
  display: block;
  margin-bottom: 8px;
  font-size: 15px;
}

.signal span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.section {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 70px 0;
}

.section.alt {
  width: 100%;
  max-width: none;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.section.alt > .inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.05;
}

.section-head p {
  max-width: 520px;
  margin: 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card,
.case-study,
.agent {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018));
}

.card {
  padding: 22px;
}

.card h3 {
  margin: 0 0 12px;
  font-size: 20px;
}

.card p {
  margin: 0;
}

.case-study {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  overflow: hidden;
}

.case-copy {
  padding: 34px;
}

.case-copy h2 {
  margin-bottom: 18px;
}

.case-visual {
  min-height: 420px;
  padding: 28px;
  background:
    linear-gradient(135deg, rgba(70, 223, 197, 0.14), rgba(135, 185, 255, 0.07)),
    #0c171b;
  display: grid;
  align-content: center;
  gap: 14px;
}

.message {
  width: min(440px, 100%);
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(6, 15, 17, 0.72);
  border-radius: 8px;
  color: #d9ebe8;
  line-height: 1.55;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}

.message.user {
  margin-left: auto;
  border-color: rgba(245, 199, 107, 0.34);
}

.message.system {
  border-color: rgba(70, 223, 197, 0.3);
}

.writing-list {
  display: grid;
  gap: 12px;
}

.writing-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.writing-row h3 {
  margin: 0 0 6px;
}

.writing-row p {
  margin: 0;
}

.writing-meta {
  display: grid;
  gap: 6px;
  justify-items: end;
  white-space: nowrap;
}

.writing-meta time {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
}

.tag {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
}

.agent {
  padding: 28px;
}

.agent-shell {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 24px;
}

.prompt-buttons {
  display: grid;
  gap: 10px;
}

.prompt-buttons button,
.agent-form button {
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  padding: 12px 14px;
  text-align: left;
  font: inherit;
}

.prompt-buttons button:hover,
.agent-form button:hover {
  border-color: rgba(70, 223, 197, 0.44);
}

.agent-form {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.agent-form input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--text);
  background: rgba(0, 0, 0, 0.22);
  font: inherit;
}

.agent-form button {
  min-width: 94px;
  text-align: center;
  color: #041412;
  background: var(--accent);
}

.answer {
  min-height: 220px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.18);
}

.answer h3 {
  margin-top: 0;
}

.answer ul {
  padding-left: 20px;
}

.footer {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 44px 0 56px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.page-hero {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 70px 0 34px;
}

.page-hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(42px, 7vw, 74px);
  line-height: 0.98;
}

.page-hero p {
  max-width: 760px;
  font-size: 20px;
}

.content-grid {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 72px;
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 34px;
}

.content-grid aside {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.content-grid article {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.content-grid h2,
.content-grid h3 {
  color: var(--text);
}

.content-grid li + li {
  margin-top: 8px;
}

@media (max-width: 900px) {
  .hero,
  .case-study,
  .agent-shell,
  .content-grid {
    grid-template-columns: 1fr;
  }

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

  .section-head,
  .footer,
  .writing-row {
    align-items: start;
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .writing-meta {
    justify-items: start;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  .nav,
  .hero,
  .section,
  .section.alt > .inner,
  .footer,
  .page-hero,
  .content-grid {
    width: min(100% - 28px, var(--max));
  }

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

  .hero {
    padding-top: 46px;
  }

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

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

  .agent-form {
    flex-direction: column;
  }
}