:root {
  --ink: #18241f;
  --muted: #61706a;
  --line: #dce5df;
  --paper: #f8faf6;
  --surface: #ffffff;
  --green: #1d8c63;
  --green-dark: #126041;
  --blue: #2f6f9f;
  --yellow: #e7bd45;
  --rust: #b8613d;
  --shadow: 0 20px 55px rgba(24, 36, 31, 0.12);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(248, 250, 246, 0.94);
  border-bottom: 1px solid rgba(220, 229, 223, 0.86);
  backdrop-filter: blur(12px);
}

.brand,
.nav-links,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 850;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
}

.nav-links {
  gap: clamp(14px, 2.5vw, 28px);
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--ink);
}

.hero,
.tools-section,
.about-section {
  padding: clamp(56px, 9vw, 112px) clamp(18px, 4vw, 56px);
}

.hero {
  display: grid;
  min-height: min(620px, calc(100svh - 80px));
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
  align-items: center;
  gap: clamp(34px, 6vw, 88px);
}

.hero-copy,
.tools-section,
.about-section {
  max-width: 1180px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: 5.1rem;
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  max-width: 720px;
  margin-bottom: 18px;
  font-size: 3.45rem;
  line-height: 1.04;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  color: #3f4d47;
  font-size: 1.32rem;
}

.workspace-visual {
  overflow: hidden;
  width: min(100%, 460px);
  min-height: 390px;
  justify-self: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(239, 246, 242, 0.98)),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.visual-topbar {
  display: flex;
  gap: 8px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.visual-topbar span {
  width: 10px;
  height: 10px;
  background: var(--muted);
  border-radius: 50%;
  opacity: 0.4;
}

.visual-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 14px;
  padding: 18px;
}

.visual-panel {
  min-height: 124px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.main-panel {
  grid-row: span 2;
  min-height: 276px;
}

.accent-panel {
  background: #18241f;
  border-color: #18241f;
}

.panel-label {
  display: block;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.accent-panel .panel-label {
  color: rgba(255, 255, 255, 0.68);
}

.main-panel strong {
  display: block;
  margin-bottom: 30px;
  font-size: 2rem;
}

.line,
.signal-row {
  height: 12px;
  margin-top: 12px;
  background: #dfe8e2;
  border-radius: 999px;
}

.line.wide {
  width: 92%;
}

.line {
  width: 68%;
}

.signal-row {
  width: 100%;
  background: linear-gradient(90deg, var(--green), var(--blue));
}

.signal-row.short {
  width: 62%;
  background: linear-gradient(90deg, var(--yellow), var(--rust));
}

.node-row {
  display: grid;
  grid-template-columns: 28px 1fr 28px;
  align-items: center;
  gap: 10px;
  padding-top: 24px;
}

.node-row i {
  display: block;
  width: 28px;
  height: 28px;
  background: var(--yellow);
  border-radius: 8px;
}

.node-row b {
  display: block;
  height: 4px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 999px;
}

.tools-section,
.about-section {
  margin: 0 auto;
}

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

.about-section {
  background: #eef5f0;
}

.section-heading {
  margin-bottom: clamp(24px, 4vw, 36px);
}

.section-note {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.tool-list {
  display: grid;
  max-width: 760px;
  gap: 14px;
}

.tool-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.tool-card:hover {
  border-color: rgba(29, 140, 99, 0.42);
  box-shadow: 0 14px 34px rgba(24, 36, 31, 0.1);
  transform: translateY(-1px);
}

.tool-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: #fff;
  background: var(--green);
  border-radius: 8px;
  font-weight: 900;
}

.tool-mark-blue {
  background: var(--blue);
}

.tool-copy {
  display: grid;
  gap: 2px;
}

.tool-copy strong {
  font-size: 1.1rem;
}

.tool-copy span,
.about-copy,
.site-footer {
  color: var(--muted);
}

.tool-arrow {
  color: var(--green-dark);
  font-weight: 900;
}

.about-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 5vw, 70px);
  font-size: 1.12rem;
}

.builder-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  max-width: 720px;
  padding-top: 1.5rem;
  margin-top: 2rem;
  color: var(--muted);
  border-top: 1px solid rgba(24, 36, 31, 0.12);
  font-size: 0.95rem;
  line-height: 1.7;
}

.builder-avatar {
  position: relative;
  display: block;
  width: 58px;
  height: 58px;
  flex: 0 0 auto;
}

.builder-avatar img {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--surface);
  border: 2px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  box-shadow: 0 10px 24px rgba(24, 36, 31, 0.12);
  object-fit: cover;
}

.linkedin-badge {
  position: absolute;
  right: -5px;
  bottom: 3px;
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: #fff;
  background: #0a66c2;
  border: 2px solid #eef5f0;
  border-radius: 50%;
  font-family: Arial, sans-serif;
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 1;
}

.builder-note p {
  margin: 0;
}

.builder-note p a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(24, 36, 31, 0.32);
  text-underline-offset: 4px;
}

.builder-note p a:hover {
  color: var(--ink);
  text-decoration-color: var(--ink);
}

.site-footer {
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
}

.site-footer span {
  color: var(--ink);
  font-weight: 900;
}

@media (max-width: 920px) {
  .hero,
  .about-copy {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 4.2rem;
  }

  h2 {
    font-size: 3rem;
  }

  .workspace-visual {
    justify-self: start;
  }
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: 3.1rem;
  }

  h2 {
    font-size: 2.35rem;
  }

  .hero-text {
    font-size: 1.14rem;
  }

  .workspace-visual {
    min-height: auto;
  }

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

  .main-panel {
    min-height: 190px;
  }

  .tool-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .tool-arrow {
    display: none;
  }

  .builder-note {
    align-items: start;
  }

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

@media (max-width: 430px) {
  .brand span:last-child {
    display: none;
  }

  h1 {
    font-size: 2.68rem;
  }

  .hero,
  .tools-section,
  .about-section {
    padding-right: 16px;
    padding-left: 16px;
  }
}