:root {
  --ack-bg: #f6f8fb;
  --ack-surface: #ffffff;
  --ack-ink: #172033;
  --ack-muted: #5d6a7c;
  --ack-border: #dce3ed;
  --ack-blue: #1463ff;
  --ack-blue-dark: #0b47bf;
  --ack-coral: #ff684d;
  --ack-teal: #0aa69f;
  --ack-warning: #fff7df;
  --ack-shadow: 0 18px 45px rgba(23, 32, 51, 0.1);
  --ack-radius: 8px;
  --ack-radius-lg: 14px;
  --ack-max: 1180px;
  --ack-space: clamp(18px, 2vw, 28px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ack-bg);
  color: var(--ack-ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: var(--ack-blue);
}

a:hover {
  color: var(--ack-blue-dark);
}

:focus-visible {
  outline: 3px solid rgba(20, 99, 255, 0.45);
  outline-offset: 3px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: var(--ack-max);
  margin: 0 auto;
  padding: 18px var(--ack-space);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ack-ink);
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--ack-ink);
  color: #fff;
  font-size: 13px;
  letter-spacing: 0;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 15px;
}

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

.top-nav a:hover {
  color: var(--ack-blue);
}

main {
  max-width: var(--ack-max);
  margin: 0 auto;
  padding: 0 var(--ack-space) 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(42px, 6vw, 78px) 0 34px;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 720px;
  color: var(--ack-muted);
  font-size: clamp(18px, 2vw, 22px);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--ack-blue);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0;
}

.hero-actions,
.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, color 160ms ease;
}

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

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

.button-primary:hover {
  background: var(--ack-blue-dark);
  color: #fff;
}

.button-secondary {
  background: #eaf0ff;
  color: var(--ack-blue-dark);
}

.hero-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--ack-border);
  border-radius: var(--ack-radius-lg);
  background: linear-gradient(180deg, #fff, #eef4ff);
  box-shadow: var(--ack-shadow);
}

.mini-card {
  min-height: 118px;
  display: flex;
  align-items: end;
  padding: 16px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--ack-border);
  color: var(--ack-muted);
  font-weight: 800;
}

.mini-card.strong {
  background: var(--ack-ink);
  color: #fff;
}

.intro-strip,
.generator-section,
.content-section,
.faq-section,
.final-cta,
.results-section,
.promo-block {
  margin: 28px 0;
  padding: clamp(22px, 4vw, 38px);
  border-radius: var(--ack-radius-lg);
  background: var(--ack-surface);
  border: 1px solid var(--ack-border);
  box-shadow: 0 10px 30px rgba(23, 32, 51, 0.06);
}

.intro-strip p {
  margin: 0;
  color: var(--ack-muted);
  font-size: 17px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 24px;
}

.section-heading h2,
.promo-block h2,
.final-cta h2 {
  margin: 0 0 8px;
  font-size: clamp(26px, 3.2vw, 42px);
  line-height: 1.1;
  letter-spacing: 0;
}

.section-heading p {
  color: var(--ack-muted);
}

.generator-form {
  display: grid;
  gap: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

label,
legend {
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 13px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  background: #fff;
  color: var(--ack-ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

small,
.field p {
  color: var(--ack-muted);
  font-size: 14px;
  margin: 0;
}

.platform-field {
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  padding: 16px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  font-weight: 700;
}

.checkbox-grid input {
  width: auto;
  min-height: auto;
}

.hp-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.notice {
  padding: 14px 16px;
  border-radius: 8px;
  background: var(--ack-warning);
  color: #5f4b12;
  border: 1px solid #f2df9c;
}

.status-message {
  min-height: 24px;
  font-weight: 700;
}

.status-message.error {
  color: #b42318;
}

.status-message.success {
  color: #087443;
}

.status-message.loading {
  color: var(--ack-blue-dark);
}

.generate-button {
  width: min(100%, 360px);
  position: relative;
}

.button-spinner {
  display: none;
  width: 18px;
  height: 18px;
  margin-left: 10px;
  border: 2px solid rgba(255,255,255,0.5);
  border-top-color: #fff;
  border-radius: 50%;
}

.is-loading .button-spinner {
  display: inline-block;
  animation: ackSpin 900ms linear infinite;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.result-card {
  padding: 18px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  background: #fbfdff;
}

.result-card.wide {
  grid-column: 1 / -1;
}

.result-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.result-card h3,
.nested-result h4 {
  margin: 0;
}

.result-description {
  color: var(--ack-muted);
}

.numbered-results,
.scene-list {
  display: grid;
  gap: 12px;
  padding-left: 22px;
}

.numbered-results li,
.nested-result {
  padding: 14px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  background: #fff;
}

.copy-button {
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  background: #fff;
  color: var(--ack-blue-dark);
  cursor: pointer;
  font-weight: 800;
}

.script-hook {
  font-weight: 800;
  color: var(--ack-blue-dark);
}

.promo-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--ack-ink);
  color: #fff;
}

.promo-block p {
  color: #dbe5f5;
}

.three-column,
.feature-list,
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.three-column article,
.feature-list article,
.tips-grid p {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  background: #fbfdff;
}

.step {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--ack-blue);
  color: #fff;
  font-weight: 900;
}

.check-list {
  display: grid;
  gap: 10px;
  padding-left: 22px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

details {
  padding: 16px;
  border: 1px solid var(--ack-border);
  border-radius: 8px;
  background: #fff;
}

summary {
  cursor: pointer;
  font-weight: 800;
}

.final-cta {
  text-align: center;
}

.final-cta p {
  max-width: 700px;
  margin: 0 auto 20px;
  color: var(--ack-muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  max-width: var(--ack-max);
  margin: 0 auto;
  padding: 26px var(--ack-space) 44px;
  color: var(--ack-muted);
}

@keyframes ackSpin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 900px) {
  .hero,
  .form-grid,
  .results-grid,
  .three-column,
  .feature-list,
  .tips-grid {
    grid-template-columns: 1fr;
  }

  .checkbox-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 560px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-panel,
  .checkbox-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .result-actions {
    flex-direction: column;
  }

  .button,
  .generate-button {
    width: 100%;
  }
}