:root {
  --color-page: #f8fafd;
  --color-surface: #ffffff;
  --color-ink: #202124;
  --color-muted: #5f6368;
  --color-border: #dadce0;
  --color-blue: #1a73e8;
  --color-blue-strong: #1558b0;
  --color-red: #d93025;
  --color-green: #188038;
  --color-yellow: #fbbc04;
  --color-overlay: rgba(32, 33, 36, 0.64);
  --color-overlay-soft: rgba(32, 33, 36, 0.46);
  --color-overlay-clear: rgba(32, 33, 36, 0.1);
  --color-success-on-dark: #a8f0bd;
  --color-error-on-dark: #ffd5d1;
  --shadow-raised: 0 18px 42px rgba(32, 33, 36, 0.18);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --max-page: 1160px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
}

* {
  box-sizing: border-box;
}

html {
  color: var(--color-ink);
  font-family: var(--font-sans);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-page);
  line-height: 1.5;
}

body,
button,
input {
  font: inherit;
}

a {
  color: inherit;
}

button,
input {
  border: 0;
}

button {
  cursor: pointer;
}

.skip-link {
  left: -999px;
  position: fixed;
  top: var(--space-4);
  z-index: 20;
}

.skip-link:focus {
  background: var(--color-surface);
  border: 2px solid var(--color-blue);
  border-radius: var(--radius-sm);
  left: var(--space-4);
  padding: var(--space-2) var(--space-3);
}

.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  align-items: center;
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max-page);
  min-height: 68px;
  padding: 0 var(--space-5);
}

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

.brand {
  font-weight: 800;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-mark {
  background: var(--color-red);
  border-radius: var(--radius-sm);
  color: var(--color-surface);
  display: grid;
  font-weight: 900;
  height: 34px;
  place-items: center;
  width: 34px;
}

.nav-links {
  color: var(--color-muted);
  font-size: 0.94rem;
  gap: var(--space-5);
}

.nav-links a {
  text-decoration: none;
}

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

.nav-action {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  min-height: 38px;
  padding: 0 var(--space-3);
}

.hero {
  background:
    linear-gradient(90deg, var(--color-overlay) 0%, var(--color-overlay-soft) 44%, var(--color-overlay-clear) 100%),
    url("/assets/creator-ai-workspace.webp") center / cover no-repeat;
  color: var(--color-surface);
  min-height: min(760px, calc(100vh - 68px));
  position: relative;
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0 auto;
  max-width: var(--max-page);
  min-height: min(760px, calc(100vh - 68px));
  padding: var(--space-8) var(--space-5);
  position: relative;
  width: 100%;
}

.eyebrow {
  color: var(--color-yellow);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 var(--space-3);
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(3.4rem, 8vw, 7.2rem);
  letter-spacing: 0;
  line-height: 0.94;
  margin: 0;
  max-width: 760px;
}

.hero-copy {
  font-size: 1.2rem;
  margin: var(--space-5) 0 0;
  max-width: 620px;
}

.signup-form {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: minmax(220px, 360px) minmax(140px, auto);
  margin-top: var(--space-6);
  max-width: 560px;
}

.signup-form input,
.signup-form button {
  border-radius: var(--radius-md);
  min-height: 54px;
}

.signup-form input {
  background: var(--color-surface);
  color: var(--color-ink);
  padding: 0 var(--space-4);
}

.signup-form input:focus {
  outline: 3px solid var(--color-yellow);
  outline-offset: 2px;
}

.signup-form button {
  background: var(--color-blue);
  color: var(--color-surface);
  font-weight: 800;
  padding: 0 var(--space-5);
}

.signup-form button:hover {
  background: var(--color-blue-strong);
}

.signup-form button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.form-note {
  font-size: 0.95rem;
  margin: var(--space-3) 0 0;
  max-width: 560px;
}

.form-note[data-state="success"] {
  color: var(--color-success-on-dark);
}

.form-note[data-state="error"] {
  color: var(--color-error-on-dark);
}

.section {
  margin: 0 auto;
  max-width: var(--max-page);
  padding: var(--space-8) var(--space-5);
}

.section-copy {
  max-width: 680px;
}

.section-copy .eyebrow {
  color: var(--color-red);
}

.section > .eyebrow {
  color: var(--color-red);
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  letter-spacing: 0;
  line-height: 1.02;
  margin: 0;
}

.intro-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: var(--space-6);
}

.intro-grid article,
.workflow-list li,
.safety-panel,
.faq-list details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-raised);
}

.intro-grid article {
  min-height: 240px;
  padding: var(--space-5);
}

.metric {
  color: var(--color-blue);
  display: block;
  font-weight: 900;
  margin-bottom: var(--space-5);
}

.intro-grid h3,
.workflow-list span {
  font-size: 1.25rem;
  margin: 0;
}

.intro-grid p,
.workflow-list p,
.safety-panel p,
.faq-list p,
.site-footer {
  color: var(--color-muted);
}

.workflow {
  border-top: 1px solid var(--color-border);
}

.workflow-list {
  counter-reset: workflow;
  display: grid;
  gap: var(--space-4);
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
}

.workflow-list li {
  counter-increment: workflow;
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 110px minmax(0, 1fr);
  padding: var(--space-5);
}

.workflow-list li::before {
  align-items: center;
  background: var(--color-green);
  border-radius: var(--radius-sm);
  color: var(--color-surface);
  content: counter(workflow, decimal-leading-zero);
  display: flex;
  font-weight: 900;
  grid-row: span 2;
  justify-content: center;
  min-height: 86px;
}

.workflow-list p,
.safety-panel p,
.faq-list p,
.intro-grid p {
  margin: 0;
}

.safety {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
}

.safety-panel {
  padding: var(--space-6);
}

.safety-panel ul {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-5) 0 0;
  padding-left: var(--space-5);
}

.safety-panel li::marker {
  color: var(--color-green);
}

.faq {
  border-top: 1px solid var(--color-border);
}

.faq-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.faq-list details {
  padding: var(--space-4) var(--space-5);
}

.faq-list summary {
  color: var(--color-ink);
  cursor: pointer;
  font-weight: 800;
}

.faq-list p {
  margin-top: var(--space-3);
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-3);
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max-page);
  padding: var(--space-6) var(--space-5);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--color-blue);
  font-weight: 800;
}

@media (max-width: 820px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    min-height: 104px;
    padding-bottom: var(--space-3);
    padding-top: var(--space-3);
  }

  .nav-links {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .hero {
    background-position: 58% center;
  }

  .hero,
  .hero-content {
    min-height: 660px;
  }

  .signup-form,
  .intro-grid,
  .safety {
    grid-template-columns: 1fr;
  }

  .workflow-list li {
    grid-template-columns: 1fr;
  }

  .workflow-list li::before {
    grid-row: auto;
    min-height: 46px;
    width: 86px;
  }

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

@media (max-width: 520px) {
  .nav-links {
    font-size: 0.88rem;
  }

  .hero h1 {
    font-size: 3.4rem;
  }

  .hero-copy {
    font-size: 1.05rem;
  }

  .section,
  .hero-content {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}