@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;700;800&family=Space+Grotesk:wght@600;700&display=swap");

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --text: #20242d;
  --muted: #636b77;
  --stroke: rgba(32, 36, 45, 0.14);
  --dark: #1f2430;
  --dark-2: #39404d;
  --shadow: 0 14px 36px rgba(15, 20, 28, 0.1);
  --font-sans: "Manrope", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", var(--font-sans);
  --text-section: clamp(1.8rem, 3vw, 3rem);
  --header-height: 5.5rem;
  --page-gutter: max(2.5rem, calc((100vw - 1120px) / 2));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: #ffffff;
  line-height: 1.55;
  overflow-x: hidden;
  padding-top: var(--header-height);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--text);
  color: #fff;
  padding: 0.6rem 0.9rem;
  border-radius: 0 0 8px 0;
  z-index: 100;
  font-weight: 700;
}

.skip-link:focus {
  left: 0;
}

main {
  width: min(1120px, calc(100% - 5rem));
  margin: 0 auto;
}

.site-header {
  width: 100%;
  margin: 0;
  padding: 1.2rem var(--page-gutter);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(20, 20, 20, 0.09);
  z-index: 1000;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: block;
  background-image: url("./resources/rulecanvas-mark-accent.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.brand-wordmark {
  display: inline-flex;
  font-family: var(--font-sans);
  font-size: 1.48rem;
  line-height: 1;
  letter-spacing: -0.05em;
  color: #4b4b4d;
}

.brand-wordmark-rule {
  font-weight: 800;
}

.brand-wordmark-canvas {
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 1.4rem;
  align-items: center;
  justify-content: center;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.9rem 1.25rem;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  box-shadow: 0 14px 32px rgba(31, 36, 48, 0.2);
}

.btn-secondary {
  color: #ffffff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.45);
}

.hero {
  padding: 0;
}

.hero-media {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(12, 18, 26, 0.9) 0%, rgba(12, 18, 26, 0.7) 38%, rgba(12, 18, 26, 0.3) 68%, rgba(12, 18, 26, 0.18) 100%),
    linear-gradient(180deg, rgba(20, 24, 32, 0.18), rgba(20, 24, 32, 0.28)),
    url("./resources/rulecanvas-hero-ai-workflow.png") 62% center / cover no-repeat;
  margin-left: calc((100vw - min(1120px, calc(100% - 5rem))) / -2);
  margin-right: calc((100vw - min(1120px, calc(100% - 5rem))) / -2);
}

.hero-copy {
  width: min(1120px, calc(100% - 5rem));
  margin: 0 auto;
  padding: 0;
}

.kicker {
  margin: 0 0 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-display);
  font-size: 0.8rem;
}

.hero-copy h1,
.section h2,
.cta-panel h2 {
  margin: 0;
  line-height: 1.08;
}

.hero-copy h1 {
  font-size: 56px;
  max-width: 740px;
  color: #ffffff;
  line-height: 1.1;
  letter-spacing: -0.04em;
  text-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
}

.hero-copy h1 span {
  display: block;
}

.hero-copy h1 span + span {
  margin-top: 0.12em;
}

.hero-lead {
  font-size: 1.08rem;
  max-width: 62ch;
  margin: 1rem 0 0;
  color: rgba(255, 255, 255, 0.88);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.6rem 0 0;
}

.section-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  width: 100vw;
  margin-left: calc((100vw - min(1120px, calc(100% - 5rem))) / -2);
  margin-right: calc((100vw - min(1120px, calc(100% - 5rem))) / -2);
  background: #ffffff;
  border-bottom: 1px solid #d7dde3;
  box-shadow: inset 0 1px 0 rgba(17, 24, 32, 0.06);
}

.section-tabs a {
  padding: 1.35rem 1rem;
  text-align: center;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.96rem;
}

.section-tabs a + a {
  border-left: 0;
}

.section {
  padding: 3rem 0;
}

.intro-section {
  padding-bottom: 1.6rem;
}

.section-label {
  margin: 0 0 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 800;
  font-size: 0.84rem;
}

.section-intro,
.section-heading p,
.image-card-body p,
.content-block p,
.fit-card li,
.fit-card ol,
.cta-panel p {
  color: var(--muted);
}

.section-intro {
  max-width: 66ch;
  font-size: 1.08rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.25rem;
}

.section-heading h2,
.cta-panel h2 {
  font-size: var(--text-section);
}

.image-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.8rem;
  padding-bottom: 1.2rem;
}

.image-card {
  background: #ffffff;
}

.image-card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  margin-bottom: 1.1rem;
  border: 1px solid rgba(32, 36, 45, 0.12);
  border-radius: 8px;
  background-color: #eef2f5;
  background-position: center;
  background-size: cover;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.84);
}

.image-hidden-rules {
  background-image: url("./resources/rulecanvas-hidden-rules-visible.png");
}

.image-test-trust {
  background-image: url("./resources/rulecanvas-test-before-trust-abstract.png");
}

.image-governed-use {
  background-image: url("./resources/rulecanvas-governed-use.png");
}

.image-card-body h3,
.content-block h3,
.fit-card h3,
.platform-block h3 {
  margin-top: 0;
}

.content-grid,
.fit-grid,
.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.content-block,
.fit-card,
.platform-block,
.cta-panel {
  border: 1px solid var(--stroke);
  background: linear-gradient(180deg, #ffffff, var(--bg-soft));
  box-shadow: var(--shadow);
}

.content-block,
.fit-card,
.platform-block {
  padding: 1.4rem;
}

.platform-section {
  padding-top: 1.5rem;
}

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

.platform-block p {
  color: var(--muted);
}

.platform-link-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: inherit;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.platform-link-block:hover,
.platform-link-block:focus-visible {
  transform: translateY(-2px);
  border-color: #3556e8;
  background: #3556e8;
  box-shadow: 0 18px 40px rgba(53, 86, 232, 0.22);
}

.platform-link-block:hover h3,
.platform-link-block:focus-visible h3,
.platform-link-block:hover p,
.platform-link-block:focus-visible p {
  color: #ffffff;
}

.platform-link-block:focus-visible {
  outline: 3px solid rgba(53, 86, 232, 0.24);
  outline-offset: 3px;
}

.fit-card ul,
.fit-card ol {
  margin: 0.7rem 0 0;
  padding-left: 1.2rem;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem;
}

.demo-section {
  padding-top: 1rem;
}

.demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.88fr);
  gap: 3rem;
  align-items: start;
}

.demo-copy h2 {
  margin: 0;
  font-size: var(--text-section);
  line-height: 1.08;
}

.demo-copy .section-intro {
  margin-top: 1rem;
}

.demo-proof {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 2.5rem;
  border-top: 1px solid var(--stroke);
}

.demo-proof div {
  display: grid;
  grid-template-columns: minmax(140px, 0.34fr) minmax(0, 1fr);
  gap: 1.4rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--stroke);
}

.demo-proof strong {
  color: var(--text);
  font-size: 1rem;
  font-weight: 800;
}

.demo-proof span {
  color: #4d5760;
  font-size: 0.98rem;
  line-height: 1.55;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  margin-top: 0.45rem;
  border: 1px solid #cfd6dc;
  border-radius: 0;
  padding: 0.85rem 0.9rem;
  background: #ffffff;
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: #111820;
  box-shadow: 0 0 0 3px rgba(17, 24, 32, 0.1);
}

.contact-form textarea {
  min-height: 9.5rem;
  resize: vertical;
}

.demo-form {
  margin: 0;
  padding: 2rem;
  background: #f7f8f9;
  border: 1px solid #d8dee3;
  box-shadow: var(--shadow);
}

.demo-form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.demo-form .btn-primary {
  width: fit-content;
  border-radius: 0;
  background: #111820;
  color: #ffffff;
  box-shadow: none;
}

.demo-form .btn-primary:disabled {
  opacity: 0.72;
  cursor: wait;
  transform: none;
}

.demo-form .btn-primary:hover {
  background: #ffffff;
  color: #111820;
  border-color: #111820;
}

.form-status {
  min-height: 1.4rem;
  margin: 0;
  font-size: 0.92rem;
  color: #5b6770;
}

.form-status.is-pending {
  color: #5b6770;
}

.form-status.is-success {
  color: #39404d;
}

.form-status.is-error {
  color: #b2412d;
}

.hp-field {
  position: absolute;
  left: -9999px;
}

.site-footer {
  width: 100%;
  margin-top: 4rem;
  color: #dfe6ea;
  background: #0d1217;
}

.site-footer-top,
.site-footer-grid,
.site-footer-bottom {
  width: min(1120px, calc(100% - 5rem));
  margin: 0 auto;
}

.site-footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.site-footer-brand p {
  margin: 1rem 0 0;
  max-width: 42rem;
  color: rgba(255, 255, 255, 0.72);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #ffffff;
  text-decoration: none;
}

.footer-brand-mark {
  width: 2rem;
  height: 2rem;
  display: block;
  background-image: url("./resources/rulecanvas-mark-inverse.svg");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

.footer-brand-wordmark {
  display: inline-flex;
  font-family: var(--font-sans);
  font-size: 1.48rem;
  line-height: 1;
  letter-spacing: -0.05em;
  color: #ffffff;
}

.footer-top-link,
.site-footer a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

.footer-top-link:hover,
.site-footer a:hover {
  color: #ffffff;
}

.site-footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.6rem;
  padding: 2.2rem 0;
}

.site-footer-grid nav {
  display: grid;
  align-content: start;
  gap: 0.7rem;
}

.site-footer-grid h3 {
  margin: 0 0 0.35rem;
  color: #ffffff;
  font-size: 0.95rem;
}

.site-footer-grid a {
  font-size: 0.92rem;
  line-height: 1.35;
}

.site-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  padding: 1.5rem 0 2.3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.82rem;
}

@media (max-width: 980px) {
  .image-card-grid,
  .content-grid,
  .fit-grid,
  .platform-grid,
  .cta-panel,
  .demo-form-row {
    grid-template-columns: 1fr;
  }

  .section-tabs {
    grid-template-columns: 1fr 1fr;
  }

  .demo-grid,
  .cta-panel {
    display: grid;
  }

  .demo-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .site-footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  :root {
    --header-height: 8.75rem;
    --page-gutter: 1rem;
  }

  main {
    width: min(1120px, calc(100vw - 2rem));
  }

  .site-header {
    max-width: 100vw;
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .brand-mark {
    width: 2rem;
    height: 2rem;
  }

  .brand-wordmark {
    font-size: 1.28rem;
  }

  .nav-links {
    flex-wrap: wrap;
    max-width: 19rem;
    gap: 0.8rem 1rem;
    font-size: 0.88rem;
  }

  .hero-media {
    min-height: 440px;
    margin-left: calc((100vw - min(1120px, calc(100vw - 2rem))) / -2);
    margin-right: calc((100vw - min(1120px, calc(100vw - 2rem))) / -2);
  }

  .hero-copy {
    width: min(1120px, calc(100vw - 2rem));
    padding: 0;
  }

  .hero-copy h1 {
    font-size: 32px;
    max-width: none;
    line-height: 1.12;
    letter-spacing: 0;
  }

  .section-tabs {
    width: 100vw;
    margin-left: calc((100vw - min(1120px, calc(100vw - 2rem))) / -2);
    margin-right: calc((100vw - min(1120px, calc(100vw - 2rem))) / -2);
    grid-template-columns: 1fr;
  }

  .section-tabs a + a {
    border-left: 0;
    border-top: 1px solid var(--stroke);
  }

  .demo-proof div {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .demo-form {
    padding: 1.35rem;
  }

  .site-footer-top,
  .site-footer-grid,
  .site-footer-bottom {
    width: min(1120px, calc(100vw - 2rem));
  }

  .site-footer-top,
  .site-footer-grid {
    display: grid;
  }

  .site-footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand-mark {
    width: 2rem;
    height: 2rem;
  }

  .footer-brand-wordmark {
    font-size: 1.28rem;
  }
}