:root {
  color-scheme: light;
  --ink: #16221f;
  --muted: #65736e;
  --paper: #fffdf8;
  --soft: #f4f1e9;
  --line: #ded8ca;
  --green: #145f49;
  --green-dark: #0d4032;
  --max: 1160px;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  line-height: 1.65;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px clamp(18px, 5vw, 56px);
  background: rgba(255, 253, 248, 0.9);
  border-bottom: 1px solid rgba(222, 216, 202, 0.8);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: var(--paper);
  background: var(--green);
  border-radius: var(--radius);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-links a {
  padding: 8px 10px;
  border-radius: var(--radius);
}

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

.hero {
  padding: clamp(56px, 8vw, 92px) clamp(18px, 4vw, 44px) 0;
  background:
    linear-gradient(135deg, rgba(255, 253, 248, 0.98), rgba(255, 253, 248, 0.82)),
    linear-gradient(135deg, #f3eee3, #dcefed);
}

.hero-content,
.idea-strip,
.preview-section,
.waitlist-section,
.site-footer {
  width: min(calc(100vw - clamp(36px, 8vw, 88px)), var(--max));
  margin: 0 auto;
}

.hero-content {
  padding: 0 clamp(18px, 4vw, 44px) clamp(56px, 8vw, 84px);
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.section-kicker,
.example-label {
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 18px;
}

h1 {
  max-width: 880px;
  margin-bottom: 20px;
  font-size: 8.25rem;
  line-height: 0.92;
  font-weight: 800;
}

.hero-copy {
  max-width: 960px;
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 2.45rem;
  line-height: 1.2;
  font-weight: 800;
}

.hero-subcopy {
  max-width: 1040px;
  width: 100%;
  margin-bottom: 0;
  font-size: 1.22rem;
}

.signup-form {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(160px, 0.45fr) auto;
  gap: 8px;
  max-width: 820px;
  width: 100%;
  margin-top: 28px;
  padding: 8px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.signup-form input,
.signup-form select,
.signup-form button,
.secondary-button {
  min-height: 50px;
  border-radius: var(--radius);
  font: inherit;
}

.signup-form input,
.signup-form select {
  width: 100%;
  min-width: 0;
  padding: 0 14px;
  color: var(--ink);
  background: var(--soft);
  border: 1px solid transparent;
  outline: 0;
}

.signup-form input:focus,
.signup-form select:focus {
  border-color: var(--green);
  background: #ffffff;
}

.signup-form select {
  appearance: none;
  cursor: pointer;
}

.signup-form button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  color: var(--paper);
  background: var(--green);
  border: 0;
  font-weight: 800;
  cursor: pointer;
  transition: background 160ms ease, transform 160ms ease;
}

.signup-form button:hover,
.secondary-button:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
}

.form-note {
  min-height: 24px;
  margin: 12px 0 0;
  font-size: 0.92rem;
}

.hidden-field {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.idea-strip,
.preview-section,
.waitlist-section {
  padding: clamp(48px, 7vw, 72px) clamp(18px, 4vw, 44px);
}

.section-heading h2,
.preview-copy h2,
.waitlist-section h2 {
  max-width: 820px;
  margin-bottom: 0;
  font-size: clamp(1.85rem, 3.5vw, 3.1rem);
  line-height: 1.08;
}

.section-kicker {
  margin-bottom: 12px;
}

.clean-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.clean-list div {
  padding: 28px 26px 8px 0;
  border-bottom: 1px solid var(--line);
}

.clean-list div + div {
  padding-left: 26px;
  border-left: 1px solid var(--line);
}

.clean-list h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
}

.clean-list p {
  margin-bottom: 0;
}

.preview-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 500px);
  align-items: start;
  gap: clamp(28px, 5vw, 56px);
  background: #f8fbf8;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.preview-copy p,
.waitlist-section p {
  max-width: 680px;
  margin: 14px 0 0;
  font-size: 1.02rem;
}

.example-stack {
  display: grid;
  align-self: stretch;
  min-height: 440px;
  padding-top: 4px;
}

.example-label {
  margin-bottom: 8px;
}

.example-card {
  position: relative;
  min-height: 122px;
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 32px rgba(22, 34, 31, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, z-index 0ms linear 180ms;
}

.example-card + .example-card {
  margin-top: -38px;
}

.example-card p:last-child {
  margin-bottom: 0;
}

.example-card:hover,
.example-card:focus-within {
  z-index: 5;
  transform: translateY(-10px);
  box-shadow: 0 18px 40px rgba(22, 34, 31, 0.14);
  transition-delay: 0ms;
}

.prompt-card {
  background: var(--soft);
}

.confident-card {
  color: var(--paper);
  background: var(--green);
}

.confident-card p,
.confident-card .example-label {
  color: var(--paper);
}

.warm-card {
  background: #fff8e8;
}

.direct-card {
  background: #f8f3eb;
}

.concise-card {
  background: #ffffff;
}

.waitlist-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.secondary-button {
  flex: 0 0 auto;
  min-width: 132px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 28px clamp(18px, 5vw, 56px) 40px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.site-footer span:first-child {
  color: var(--muted);
  font-weight: 400;
}

@media (max-width: 820px) {
  h1 {
    font-size: 6rem;
  }

  .hero-copy {
    font-size: 2rem;
  }

  .hero-subcopy {
    font-size: 1.08rem;
  }

  .signup-form,
  .clean-list,
  .preview-section {
    grid-template-columns: 1fr;
  }

  .clean-list div,
  .clean-list div + div {
    padding: 24px 0;
    border-left: 0;
  }

  .waitlist-section {
    flex-direction: column;
    align-items: flex-start;
  }

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

@media (max-width: 560px) {
  .site-header {
    padding: 14px 16px;
  }

  .nav-links a:first-child {
    display: none;
  }

  .hero,
  .idea-strip,
  .preview-section,
  .waitlist-section {
    padding-right: 16px;
    padding-left: 16px;
  }

  h1 {
    font-size: 4.6rem;
  }

  .hero-copy {
    font-size: 1.6rem;
  }

  .hero-subcopy {
    font-size: 1rem;
  }

  .signup-form button {
    width: 100%;
  }
}