/*
  Visual system aligned to https://www.rootstocklabs.com/institutional/
  (Rootstock Sans, cream background #fafaf5, ink #000 / #121212, grays from published CSS.)
  Fonts are loaded from rootstocklabs.com — same files as the institutional site.
*/

@font-face {
  font-display: swap;
  font-family: "Rootstock Sans";
  font-style: normal;
  font-weight: 400;
  src:
    url("https://www.rootstocklabs.com/fonts/Rootstock-Sans-Body.woff2") format("woff2"),
    url("https://www.rootstocklabs.com/fonts/Rootstock-Sans-Body.woff") format("woff");
}

@font-face {
  font-display: swap;
  font-family: "Rootstock Sans";
  font-style: normal;
  font-weight: 500;
  src:
    url("https://www.rootstocklabs.com/fonts/Rootstock-Sans-Tags.woff2") format("woff2"),
    url("https://www.rootstocklabs.com/fonts/Rootstock-Sans-Tags.woff") format("woff");
}

@font-face {
  font-display: swap;
  font-family: "Rootstock Sans";
  font-style: normal;
  font-weight: 700;
  src:
    url("https://www.rootstocklabs.com/fonts/Rootstock-Sans-Headline.woff2") format("woff2"),
    url("https://www.rootstocklabs.com/fonts/Rootstock-Sans-Headline.woff") format("woff");
}

html[data-theme="light"] {
  --rs-body-bg: #fafaf5;
  --rs-header-bg: #fafaf5;
  --rs-header-color: #121212;
  --rs-text: #000;
  --rs-heading: #000;
  --rs-muted: #73736f;
  --rs-muted-2: #52524f;
  --rs-border: #121212;
  --rs-border-soft: #e5e5e1;
  --rs-border-ui: #dbd1c8;
  --rs-surface: #fff;
  --rs-surface-2: #faf8f7;
  --rs-pill-shadow: 3px 4px 0 0 #73736f;
  --rs-pill-shadow-sm: 2px 3px 0 0 #73736f;
  --rs-pill-shadow-focus: 1px 2px 0 0 #121212;
  --rs-pink: #ff70e0;
  --rs-terminal-bar: #eef0ea;
  --rs-terminal-body: #fafaf5;
  --rs-code: #121212;
}

html[data-theme="dark"] {
  --rs-body-bg: #121212;
  --rs-header-bg: #121212;
  --rs-header-color: #fafaf5;
  --rs-text: #fafaf5;
  --rs-heading: #fafaf5;
  --rs-muted: #b2b2ad;
  --rs-muted-2: #dbd1c8;
  --rs-border: #52524f;
  --rs-border-soft: #2a2a28;
  --rs-border-ui: #52524f;
  --rs-surface: #1a1a1a;
  --rs-surface-2: #242424;
  --rs-pill-shadow: 3px 4px 0 0 #52524f;
  --rs-pill-shadow-sm: 2px 3px 0 0 #52524f;
  --rs-pill-shadow-focus: 1px 2px 0 0 #fafaf5;
  --rs-pink: #ff70e0;
  --rs-terminal-bar: #2a2a2a;
  --rs-terminal-body: #0e0e0e;
  --rs-code: #e8e6e1;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-padding-top: 96px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: "Rootstock Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
    "Segoe UI Symbol", "Noto Color Emoji";
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--rs-text);
  background-color: var(--rs-body-bg);
}

/* Layout — container rhythm (generous horizontal inset so header/title never hugs the viewport) */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: max(32px, env(safe-area-inset-left, 0px));
  padding-right: max(32px, env(safe-area-inset-right, 0px));
}

@media (min-width: 640px) {
  .container {
    padding-left: max(48px, env(safe-area-inset-left, 0px));
    padding-right: max(48px, env(safe-area-inset-right, 0px));
  }
}

@media (min-width: 1200px) {
  .container {
    padding-left: max(96px, env(safe-area-inset-left, 0px));
    padding-right: max(96px, env(safe-area-inset-right, 0px));
  }
}

/* Header — .header institutional */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1046;
  background-color: var(--rs-header-bg);
  color: var(--rs-header-color);
  border-bottom: 1px solid var(--rs-border-soft);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 24px 0;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 0.875rem;
  line-height: 1.2;
  letter-spacing: -0.024em;
  max-width: min(100%, 22rem);
}

.brand__x {
  font-weight: 500;
  color: var(--rs-muted);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-audience {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 4px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.nav-audience__link {
  color: var(--rs-muted);
  text-decoration: none;
  letter-spacing: -0.02em;
  border-bottom: 1px solid transparent;
  padding: 4px 2px;
  white-space: nowrap;
}

.nav-audience__link:hover {
  color: var(--rs-heading);
  border-bottom-color: var(--rs-border-ui);
}

.nav-audience__link[aria-current="page"] {
  color: var(--rs-heading);
  border-bottom-color: var(--rs-heading);
}

.nav-audience__sep {
  color: var(--rs-muted);
  font-weight: 500;
  user-select: none;
}

/* Theme toggle */
.theme-toggle {
  display: inline-flex;
  padding: 3px;
  border-radius: 10px;
  background: var(--rs-surface);
  border: 1px solid var(--rs-border-ui);
}

html[data-theme="dark"] .theme-toggle {
  background: var(--rs-surface-2);
  border-color: var(--rs-border);
}

.theme-toggle__btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--rs-muted);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.theme-toggle__btn:hover {
  color: var(--rs-heading);
}

.theme-toggle__btn.is-active {
  background: var(--rs-body-bg);
  color: var(--rs-heading);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

html[data-theme="dark"] .theme-toggle__btn.is-active {
  background: var(--rs-surface);
  box-shadow: none;
}

/* Buttons — Rootstock .btn */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  padding: 12px 16px;
  border-radius: 40px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out,
    box-shadow 0.15s ease-in-out;
  box-shadow: var(--rs-pill-shadow);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--rs-pill-shadow-focus);
}

.btn-nav {
  white-space: nowrap;
}

.btn-primary {
  background-color: #121212;
  border-color: #121212;
  color: #fff;
}

.btn-primary:hover {
  background-color: #0f0f0f;
  border-color: #0e0e0e;
  color: #fff;
  box-shadow: var(--rs-pill-shadow-focus);
}

html[data-theme="dark"] .btn-primary {
  background-color: #fafaf5;
  border-color: #fafaf5;
  color: #121212;
}

html[data-theme="dark"] .btn-primary:hover {
  background-color: #e5e5e1;
  border-color: #e5e5e1;
  color: #121212;
}

.btn-secondary {
  background-color: var(--rs-body-bg);
  border-color: #73736f;
  color: #121212;
}

.btn-secondary:hover {
  box-shadow: var(--rs-pill-shadow-focus);
}

html[data-theme="dark"] .btn-secondary {
  background-color: transparent;
  border-color: #73736f;
  color: #fafaf5;
}

.btn-block {
  width: 100%;
}

/* Typography — institutional scale (simplified for landing) */
h1,
h2,
h3 {
  font-family: "Rootstock Sans", Arial, sans-serif;
  letter-spacing: -0.024em;
  color: var(--rs-heading);
  margin-top: 0;
}

h1 {
  font-weight: 700;
  font-size: clamp(2.25rem, 5vw, 4.875rem);
  line-height: 1;
  margin-bottom: 1rem;
}

h2 {
  font-weight: 700;
  font-size: clamp(1.75rem, 3vw, 3rem);
  line-height: 1;
  margin-bottom: 0.75rem;
  max-width: min(40rem, 100%);
}

h3 {
  font-weight: 700;
  font-size: clamp(1.125rem, 1.5vw, 1.5rem);
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

.h1-sub {
  display: block;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--rs-muted);
  letter-spacing: -0.02em;
  margin-top: 0.35rem;
}

.eyebrow {
  font-weight: 700;
  font-size: 0.75rem;
  line-height: 1.133;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--rs-muted-2);
  margin: 0 0 0.5rem;
}

.lead,
.section-lead {
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.5;
  color: var(--rs-muted);
  max-width: 36rem;
  margin: 0 0 1rem;
}

.section-kicker {
  font-weight: 700;
  font-size: 0.75rem;
  line-height: 1.133;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--rs-muted-2);
  margin: 0 0 0.5rem;
}

p {
  margin: 0 0 24px;
}

/* Hero */
.hero {
  padding: clamp(48px, 8vw, 100px) 0 clamp(56px, 10vw, 120px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 84px);
  align-items: start;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 0;
}

.proof {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--rs-muted);
  max-width: 34rem;
  margin: 16px 0 0;
}

.hero-visual {
  position: relative;
}

.terminal-note {
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--rs-muted);
  margin: 12px 0 0;
}

/* Terminal */
.terminal-card {
  margin: 0;
  border-radius: 14px;
  border: 1px solid var(--rs-border);
  background: var(--rs-surface);
  overflow: hidden;
}

.terminal-card--compact {
  margin-top: 16px;
}

.terminal-card__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--rs-terminal-bar);
  border-bottom: 1px solid var(--rs-border-soft);
}

/* Reserve width so the 3 “traffic light” dots (via box-shadow) don’t overlap the title */
.terminal-card__dots {
  flex: 0 0 auto;
  display: block;
  min-width: 52px;
  height: 8px;
  margin-right: 4px;
}

.terminal-card__dots::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff5f57;
  box-shadow: 14px 0 0 #febc2e, 28px 0 0 #28c840;
}

.terminal-card__title {
  flex: 1;
  min-width: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  font-size: 0.72rem;
  color: var(--rs-muted);
  text-transform: lowercase;
}

.terminal-card__copy {
  appearance: none;
  border: 1px solid var(--rs-border);
  background: var(--rs-surface);
  color: var(--rs-heading);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 40px;
  cursor: pointer;
  box-shadow: var(--rs-pill-shadow-sm);
  transition: box-shadow 0.15s ease, background 0.15s ease;
}

.terminal-card__copy:hover {
  box-shadow: var(--rs-pill-shadow-focus);
}

.terminal-card__copy:disabled {
  opacity: 0.85;
  cursor: default;
}

.terminal-card__copy--ghost {
  box-shadow: none;
  border-color: var(--rs-border-ui);
}

.terminal-card__body {
  margin: 0;
  padding: 16px 18px 20px;
  min-height: 200px;
  max-height: 320px;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--rs-code);
  background: var(--rs-terminal-body);
  white-space: pre-wrap;
  word-break: break-word;
  outline: none;
}

.terminal-card__body:focus {
  box-shadow: inset 0 0 0 2px rgba(115, 115, 111, 0.35);
}

.terminal-card__body--json {
  min-height: 180px;
  max-height: 260px;
}

.terminal-card--compact .terminal-card__body {
  min-height: 100px;
  max-height: 200px;
  font-size: 0.78rem;
}

/* Sections */
.section {
  padding: clamp(56px, 8vw, 100px) 0;
}

.section.alt {
  background-color: var(--rs-surface);
  border-top: 1px solid var(--rs-border-soft);
  border-bottom: 1px solid var(--rs-border-soft);
}

html[data-theme="dark"] .section.alt {
  background-color: #1a1a1a;
  border-color: var(--rs-border-soft);
}

.grid-list,
.kpis,
.build-bullets {
  margin: 16px 0 0;
  padding-left: 1.5rem;
  color: var(--rs-muted);
}

.grid-list li,
.kpis li,
.build-bullets li {
  margin-bottom: 8px;
}

.cards {
  margin-top: 24px;
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.cards.two-col {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--rs-body-bg);
  border: 1px solid var(--rs-border-soft);
  border-radius: 12px;
  padding: 20px 22px;
  transition: border-color 0.15s ease;
}

html[data-theme="light"] .section.alt .card {
  background: #fafaf5;
}

.card:hover {
  border-color: var(--rs-border-ui);
}

.card p,
.card li {
  color: var(--rs-muted);
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.card ul {
  margin: 8px 0 0;
  padding-left: 1.1rem;
}

.diagram {
  margin-top: 16px;
  background: var(--rs-terminal-body);
  border: 1px solid var(--rs-border);
  border-radius: 12px;
  padding: 16px 18px;
  color: var(--rs-code);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
  overflow-x: auto;
}

/* Scenario cards — situation → agent → impact */
.scenario-cards {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.scenario-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 0;
  padding: 22px 24px;
  border: 1px solid var(--rs-border-soft);
  border-radius: 14px;
  background: var(--rs-surface);
  transition: border-color 0.15s ease;
}

.scenario-card:hover {
  border-color: var(--rs-border-ui);
}

html[data-theme="dark"] .scenario-card {
  background: var(--rs-surface-2);
}

.scenario-card__cell {
  min-width: 0;
}

.scenario-card__label {
  margin: 0 0 8px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--rs-muted-2);
}

.scenario-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--rs-muted);
}

@media (min-width: 900px) {
  .scenario-card {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 28px;
    align-items: start;
  }

  .scenario-card__cell + .scenario-card__cell {
    border-left: 1px solid var(--rs-border-soft);
    padding-left: 28px;
  }
}

/* Steps */
.steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: start;
}

.steps__num {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--rs-surface-2);
  border: 1px solid var(--rs-border-soft);
  color: var(--rs-heading);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.steps__content p {
  color: var(--rs-muted);
  margin: 0 0 8px;
  font-size: 0.9375rem;
}

/* Agentic */
.agentic-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
  align-items: stretch;
}

.agentic-topology-wrap {
  border: 1px solid var(--rs-border);
  border-radius: 14px;
  background: var(--rs-surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

html[data-theme="dark"] .agentic-topology-wrap {
  background: var(--rs-surface-2);
}

.topology-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--rs-terminal-bar);
  border-bottom: 1px solid var(--rs-border-soft);
}

.topology-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--rs-muted);
}

.topology-pre {
  margin: 0;
  padding: 16px;
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--rs-code);
  background: var(--rs-terminal-body);
  overflow: auto;
}

/* Command list */
.command-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border: 1px solid var(--rs-border-soft);
  border-radius: 14px;
  background: var(--rs-surface);
  overflow: hidden;
}

.command-list__row {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) auto minmax(0, 2fr);
  gap: 16px;
  align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--rs-border-soft);
}

.command-list__row:last-child {
  border-bottom: none;
}

.command-list__cmd {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--rs-code);
  word-break: break-all;
}

.command-list__badge {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.command-list__badge--inspect {
  background: rgba(255, 112, 224, 0.12);
  color: #ff70e0;
}

.command-list__badge--execute {
  background: rgba(18, 18, 18, 0.08);
  color: #121212;
}

html[data-theme="dark"] .command-list__badge--execute {
  background: rgba(250, 250, 245, 0.1);
  color: #fafaf5;
}

.command-list__desc {
  font-size: 0.875rem;
  color: var(--rs-muted);
  line-height: 1.45;
}

/* Build + form — HubSpot / rl-form patterns from site */
.build-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 60px);
  align-items: start;
}

.contact-form {
  background: var(--rs-surface);
  border: 1px solid var(--rs-border-soft);
  border-radius: 14px;
  padding: 24px 28px;
}

.field {
  display: block;
  margin-bottom: 20px;
}

.field__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--rs-heading);
  cursor: pointer;
}

.field__input {
  width: 100%;
  padding: 14px 24px;
  border-radius: 34px;
  border: 1px solid #121212;
  background-color: #faf8f7;
  color: #121212;
  font-family: inherit;
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: 0.02em;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

html[data-theme="dark"] .field__input {
  background-color: var(--rs-surface-2);
  border-color: var(--rs-border);
  color: var(--rs-text);
}

.field__input:hover {
  background-color: #fff;
  border-color: #73736f;
}

html[data-theme="dark"] .field__input:hover {
  background-color: #2a2a2a;
  border-color: #73736f;
}

.field__input:focus {
  outline: none;
  background-color: #fff;
  border-color: #73736f;
}

.field__textarea {
  border-radius: 10px;
  min-height: 120px;
  resize: vertical;
}

/* CTA */
.cta {
  text-align: center;
  padding: 80px 0 100px;
}

.cta p {
  color: var(--rs-muted);
  max-width: 36rem;
  margin: 0 auto 20px;
}

.cta h2 {
  max-width: none;
  margin: 0 auto 12px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--rs-border-soft);
  padding: 0 0 40px;
}

.footer-logos {
  background-color: #121212;
  border-bottom: 1px solid #2a2a2a;
  padding: 28px 0;
}

.footer-logos__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(24px, 6vw, 56px);
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  opacity: 0.92;
  transition: opacity 0.15s ease;
}

.footer-logo-link:hover {
  opacity: 1;
}

.footer-logo {
  display: block;
  height: auto;
  max-height: 36px;
  width: auto;
  object-fit: contain;
}

.footer-logo--wul {
  max-height: 32px;
}

.footer-logo--rs {
  max-height: 44px;
  width: 44px;
  border-radius: 8px;
}

.footer-logo-wordmark {
  font-family: "Rootstock Sans", Arial, sans-serif;
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.03em;
  color: #fafaf5;
}

.footer-inner {
  text-align: center;
  padding-top: 24px;
}

.footer-note {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--rs-muted);
  max-width: 40rem;
  margin-inline: auto;
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid,
  .agentic-grid,
  .build-grid {
    grid-template-columns: 1fr;
  }

  .command-list__row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .command-list__badge {
    justify-self: start;
  }
}

@media (max-width: 480px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }
}