:root {
  --color-bg: #0f172a;
  --color-bg-secondary: #162033;
  --color-card: #1e293b;
  --color-border: #334155;
  --color-text: #f8fafc;
  --color-muted: #a8b5c8;
  --color-accent: #38bdf8;
  --color-primary: #2563eb;
  --color-primary-hover: #3b82f6;
  --color-focus: #7dd3fc;
  --shadow-card: 0 20px 50px rgb(2 6 23 / 0.24);
  --radius-sm: 0.75rem;
  --radius-md: 1.125rem;
  --radius-lg: 1.5rem;
  --container: 73.75rem;
  --header-height: 4.75rem;
  --font-sans: "Manrope", "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-width: 20rem;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 0.1875rem solid var(--color-focus);
  outline-offset: 0.25rem;
}

::selection {
  background: var(--color-accent);
  color: #082f49;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  transform: translateY(-180%);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--color-text);
  color: var(--color-bg);
  font-weight: 800;
  text-decoration: none;
  transition: transform 150ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  border-bottom: 1px solid rgb(51 65 85 / 0.72);
  background: rgb(15 23 42 / 0.92);
  backdrop-filter: blur(0.75rem);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
  color: var(--color-text);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  flex: 0 0 auto;
  width: 2.5rem;
  height: 2.5rem;
}

.brand span {
  white-space: nowrap;
}

.primary-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.primary-nav a,
.footer-nav a {
  color: var(--color-muted);
  font-weight: 700;
  text-decoration: none;
  transition:
    color 160ms ease,
    transform 160ms ease;
}

.primary-nav a:hover,
.footer-nav a:hover {
  color: var(--color-text);
}

.hero {
  min-height: calc(100svh - var(--header-height));
  display: grid;
  align-items: center;
  overflow: clip;
  padding-block: clamp(4.5rem, 12vw, 8.5rem);
  background:
    radial-gradient(circle at 85% 35%, rgb(56 189 248 / 0.11), transparent 28rem),
    var(--color-bg);
}

.hero-grid {
  display: grid;
  gap: 3.5rem;
  align-items: center;
}

.hero-copy {
  max-width: 46rem;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--color-text);
  line-height: 1.12;
  text-wrap: balance;
}

h1 {
  max-width: 13ch;
  margin-bottom: 1.35rem;
  font-size: clamp(3rem, 10vw, 6.75rem);
  font-weight: 850;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 6vw, 3.7rem);
  font-weight: 820;
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

p {
  margin-top: 0;
}

.hero-summary {
  max-width: 43rem;
  margin-bottom: 2rem;
  color: var(--color-muted);
  font-size: clamp(1.075rem, 2.7vw, 1.28rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.78rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 0.8rem;
  font-size: 0.93rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button:hover {
  transform: translateY(-0.125rem);
}

.button-primary {
  background: var(--color-primary);
  color: #fff;
}

.button-primary:hover {
  background: var(--color-primary-hover);
}

.button-secondary {
  border-color: var(--color-border);
  background: rgb(30 41 59 / 0.58);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: #64748b;
  background: var(--color-card);
}

.header-cta {
  min-height: 2.65rem;
  padding: 0.65rem 0.85rem;
  white-space: nowrap;
}

.logo-stage {
  width: min(75vw, 27rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgb(51 65 85 / 0.62);
  border-radius: 2.25rem;
  background:
    linear-gradient(145deg, rgb(30 41 59 / 0.7), rgb(15 23 42 / 0.25));
  box-shadow: var(--shadow-card);
}

.logo-stage img {
  width: 72%;
  height: auto;
}

.section {
  padding-block: clamp(4.75rem, 10vw, 8rem);
}

.section-surface {
  border-block: 1px solid rgb(51 65 85 / 0.48);
  background: var(--color-bg-secondary);
}

.section-heading {
  width: 100%;
  margin-bottom: 2.2rem;
}

.section-heading > p:not(.eyebrow) {
  color: var(--color-muted);
}

.tool-card {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
  transition:
    border-color 180ms ease,
    transform 180ms ease;
}

.tool-card:hover {
  transform: translateY(-0.1875rem);
  border-color: #475569;
}

.tool-visual {
  min-height: 18rem;
  display: grid;
  place-items: center;
  padding: 2rem;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(circle at 50% 40%, rgb(56 189 248 / 0.15), transparent 13rem),
    #111b2d;
}

.tool-visual img {
  width: min(72%, 18rem);
}

.tool-content {
  padding: clamp(1.5rem, 5vw, 3.5rem);
}

.tool-content > p {
  max-width: 52rem;
  color: var(--color-muted);
}

.tool-content .tool-intro {
  max-width: 37rem;
  margin-bottom: 0.9rem;
  color: var(--color-text);
  font-size: clamp(1.25rem, 4vw, 1.7rem);
  font-weight: 800;
  line-height: 1.35;
}

.feature-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.65rem 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 1.7rem;
  color: var(--color-text);
}

.feature-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 0.65rem;
  height: 0.65rem;
  border: 0.125rem solid var(--color-accent);
  border-radius: 0.2rem;
  transform: rotate(45deg);
}

.tool-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  margin: 0 0 1.8rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.91rem;
  list-style: none;
}

.tool-meta li:not(:last-child)::after {
  content: "·";
  margin-left: 1rem;
  color: #64748b;
}

.about-grid {
  display: grid;
  gap: 1rem 3rem;
  margin-bottom: 3rem;
}

.about-copy {
  max-width: 47rem;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.principles-grid {
  display: grid;
  gap: 1rem;
}

.principle {
  min-height: 100%;
  padding: 1.45rem;
  border-top: 0.1875rem solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  background: rgb(30 41 59 / 0.58);
}

.principle p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.faq-layout {
  display: grid;
  gap: 1.5rem 4rem;
}

.faq-list {
  display: grid;
  gap: 0.75rem;
}

.faq-list details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgb(15 23 42 / 0.48);
}

.faq-list summary {
  position: relative;
  cursor: pointer;
  padding: 1.2rem 3.2rem 1.2rem 1.2rem;
  color: var(--color-text);
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 1.2rem;
  color: var(--color-accent);
  font-size: 1.4rem;
  line-height: 1;
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin: 0;
  padding: 0 1.2rem 1.2rem;
  color: var(--color-muted);
}

.support-card {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  padding: clamp(1.5rem, 5vw, 3rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgb(37 99 235 / 0.14), transparent 60%),
    var(--color-card);
}

.support-card h2 {
  max-width: 100%;
  font-size: clamp(1.9rem, 5vw, 3rem);
}

.support-card p {
  width: 100%;
  color: var(--color-muted);
}

.support-card .support-note {
  margin-bottom: 0;
  color: var(--color-text);
  font-weight: 700;
}

.support-card > .button {
  justify-self: start;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: #0a1020;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-block: 2rem;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.footer-inner p {
  margin: 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.2rem;
}

.legal-main {
  min-height: calc(100svh - var(--header-height));
  padding-block: clamp(4rem, 10vw, 7rem);
}

.legal-content {
  max-width: 48rem;
}

.legal-content h1 {
  max-width: none;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
}

.legal-content p,
.legal-content li {
  color: var(--color-muted);
}

.legal-content a {
  color: var(--color-accent);
}

.legal-notice {
  margin-block: 2rem;
  padding: 1rem 1.15rem;
  border-left: 0.25rem solid var(--color-accent);
  background: var(--color-card);
}

@media (min-width: 40rem) {
  .container {
    width: min(100% - 3rem, var(--container));
  }

  .header-cta {
    padding-inline: 1rem;
  }

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

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

@media (min-width: 52rem) {
  .primary-nav {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.7fr);
  }

  .about-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  }

  .faq-layout .section-heading {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    align-self: start;
  }
}

@media (min-width: 60rem) {
  .tool-card {
    grid-template-columns: minmax(19rem, 0.82fr) minmax(0, 1.48fr);
  }

  .tool-visual {
    min-height: 100%;
    border-right: 1px solid var(--color-border);
    border-bottom: 0;
  }

  .tool-content {
    padding: 3.5rem;
  }
}

@media (max-width: 31rem) {
  .brand span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .header-inner {
    gap: 0.6rem;
  }

  .header-cta {
    font-size: 0.86rem;
  }

  .button-row .button {
    width: 100%;
  }

  .tool-meta {
    display: grid;
    gap: 0.3rem;
  }

  .tool-meta li::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .button,
  .tool-card,
  .principle,
  .faq-list details,
  .support-card {
    border: 1px solid ButtonText;
  }
}