/* ProteinText — calm, legible, mobile-first */
:root {
  --paper: #fbf9f4;
  --surface: #ffffff;
  --ink: #17211e;
  --muted: #56635f;
  --soft: #eef1eb;
  --line: #d8ddd7;
  --evergreen: #24594d;
  --evergreen-dark: #173f36;
  --evergreen-pale: #e7f0ec;
  --clay: #a85343;
  --focus: #0d6bd8;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
  --shadow: 0 24px 60px rgba(24, 36, 32, 0.10), 0 3px 12px rgba(24, 36, 32, 0.06);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.58;
  color: var(--ink);
  background: var(--paper);
  text-rendering: optimizeLegibility;
}
a { color: var(--evergreen-dark); text-underline-offset: 3px; }
a:hover { color: var(--clay); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
img, svg { max-width: 100%; }
button, input { font: inherit; }
button, .button { min-height: 48px; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -100px;
  z-index: 100;
  padding: 12px 18px;
  background: var(--ink);
  color: white;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 16px; }

.site-header {
  height: 72px;
  background: rgba(251, 249, 244, 0.96);
  border-bottom: 1px solid rgba(23, 33, 30, 0.09);
}
.nav-wrap {
  width: min(1180px, calc(100% - 40px));
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  letter-spacing: -0.025em;
  text-decoration: none;
  font-size: 20px;
}
.brand-mark {
  width: 31px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 9px 9px 9px 3px;
  background: var(--evergreen);
  color: white;
  font-family: var(--serif);
  font-size: 17px;
  font-style: italic;
}
.nav-note { color: var(--muted); font-size: 14px; font-weight: 600; }

.hero {
  width: min(1180px, calc(100% - 40px));
  min-height: calc(100svh - 72px);
  margin: 0 auto;
  padding: clamp(38px, 6vh, 72px) 0;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.88fr);
  gap: clamp(44px, 7vw, 92px);
  align-items: center;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--evergreen);
  font-size: 14px;
  line-height: 1.2;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
h1, h2, h3 {
  font-family: var(--serif);
  text-wrap: balance;
}
h1 {
  margin: 0;
  max-width: 700px;
  font-size: clamp(48px, 5.2vw, 72px);
  line-height: 0.99;
  letter-spacing: -0.045em;
  font-weight: 600;
}
.hero-lede {
  margin: 24px 0 0;
  max-width: 610px;
  color: var(--muted);
  font-size: clamp(18px, 1.8vw, 21px);
  line-height: 1.48;
}
.price-line {
  margin: 28px 0 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 16px;
}
.price {
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.02em;
}
.guarantee {
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--evergreen-pale);
  color: var(--evergreen-dark);
  font-size: 14px;
  font-weight: 700;
}
.steps-compact {
  margin: 28px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
}
.steps-compact h2 {
  margin: 0 0 13px;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.3;
  letter-spacing: 0.01em;
}
.steps-compact ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  counter-reset: steps;
}
.steps-compact li {
  position: relative;
  padding-left: 29px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.42;
  counter-increment: steps;
}
.steps-compact li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 1px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: white;
  font-size: 11px;
  font-weight: 800;
}

.signup-card {
  position: relative;
  padding: clamp(26px, 3vw, 38px);
  border: 1px solid rgba(23, 33, 30, 0.12);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.signup-card::before {
  content: "";
  position: absolute;
  width: 46px;
  height: 4px;
  left: 38px;
  top: 0;
  border-radius: 0 0 6px 6px;
  background: var(--clay);
}
.signup-card h2 {
  margin: 0;
  font-size: 31px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.form-intro { margin: 10px 0 22px; color: var(--muted); font-size: 15px; }
.field { display: grid; gap: 7px; margin-top: 16px; }
.field label { font-size: 15px; font-weight: 750; }
.field input {
  width: 100%;
  min-height: 50px;
  padding: 11px 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #bcc5c0;
  border-radius: var(--radius-sm);
}
.field input:hover { border-color: #85918c; }
.field input:focus { border-color: var(--focus); outline: 3px solid rgba(13, 107, 216, 0.18); }
.consent-row {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: start;
  gap: 12px;
  margin: 20px 0;
}
.consent-row input {
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  accent-color: var(--evergreen);
}
.consent-copy { font-size: 16px; line-height: 1.45; color: #34413d; }
.submit-button {
  width: 100%;
  padding: 12px 20px;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--evergreen);
  color: white;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 5px 16px rgba(36, 89, 77, 0.20);
}
.submit-button:hover { background: var(--evergreen-dark); }
.submit-button:disabled { opacity: 0.68; cursor: wait; }
.form-note { margin: 13px 0 0; color: var(--muted); font-size: 14px; text-align: center; }

.section { padding: 92px 0; }
.section.alt { background: var(--soft); }
.container { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading h2 {
  margin: 0;
  font-size: clamp(38px, 5vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.04em;
}
.section-heading p { max-width: 670px; margin: 18px 0 0; color: var(--muted); font-size: 19px; }
.message-demo {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 52px;
  align-items: center;
}
.audience-copy h2 { margin: 0 0 18px; font-size: clamp(34px, 4vw, 50px); line-height: 1.07; letter-spacing: -0.035em; }
.audience-copy p { margin: 0 0 15px; color: var(--muted); font-size: 19px; }
.audience-kicker { color: var(--evergreen-dark) !important; font-weight: 700; }
.phone-demo {
  max-width: 460px;
  margin-left: auto;
  padding: 28px;
  border-radius: 30px;
  background: #e7e9e5;
  box-shadow: inset 0 0 0 1px rgba(23, 33, 30, 0.09), 0 20px 45px rgba(23, 33, 30, 0.10);
}
.phone-label { margin: 0 0 20px; text-align: center; font-size: 14px; font-weight: 750; }
.bubble {
  width: fit-content;
  max-width: 88%;
  margin: 10px 0;
  padding: 11px 15px;
  border-radius: 18px;
  background: white;
  font-size: 16px;
  line-height: 1.38;
  box-shadow: 0 1px 2px rgba(23, 33, 30, 0.06);
}
.bubble.sent { margin-left: auto; background: var(--evergreen); color: white; border-bottom-right-radius: 5px; }
.bubble.received { border-bottom-left-radius: 5px; }

.full-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 64px;
  border-top: 1px solid var(--line);
}
.full-step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.step-number {
  font-family: var(--serif);
  color: var(--clay);
  font-size: 34px;
  line-height: 1;
}
.full-step h3 { margin: 0 0 7px; font-size: 23px; line-height: 1.15; }
.full-step p { margin: 0; color: var(--muted); }

.price-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 52px;
  border-radius: var(--radius-lg);
  background: var(--evergreen-dark);
  color: white;
}
.price-panel h2 { margin: 0; font-size: clamp(34px, 4vw, 50px); line-height: 1.05; letter-spacing: -0.035em; }
.price-panel p { margin: 14px 0 0; max-width: 650px; color: #dce9e4; }
.price-panel .button {
  display: inline-grid;
  place-items: center;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  background: white;
  color: var(--evergreen-dark);
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.legal-main { padding: 72px 0 96px; }
.legal-document { width: min(760px, calc(100% - 40px)); margin: 0 auto; }
.legal-document h1 { font-size: clamp(44px, 6vw, 66px); }
.legal-meta { margin: 16px 0 42px; color: var(--muted); }
.legal-document h2 { margin: 44px 0 12px; font-size: 28px; letter-spacing: -0.02em; }
.legal-document p, .legal-document li { color: #34413d; }
.legal-document li + li { margin-top: 10px; }
.privacy-promise {
  margin: 34px 0;
  padding: 24px 26px;
  border: 2px solid var(--evergreen);
  border-radius: var(--radius-md);
  background: var(--evergreen-pale);
  color: var(--evergreen-dark) !important;
  font-size: 20px;
  font-weight: 750;
}
.summary-box {
  margin: 32px 0;
  padding: 22px 24px;
  border-radius: var(--radius-md);
  background: var(--soft);
}
.summary-box p { margin: 0; }

.thanks-main { min-height: calc(100svh - 72px); display: grid; place-items: center; padding: 56px 20px; }
.thanks-card {
  width: min(640px, 100%);
  padding: clamp(32px, 6vw, 64px);
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: white;
  box-shadow: var(--shadow);
}
.thanks-check {
  width: 58px;
  height: 58px;
  margin: 0 auto 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--evergreen-pale);
  color: var(--evergreen-dark);
  font-size: 28px;
  font-weight: 800;
}
.thanks-card h1 { font-size: clamp(40px, 7vw, 58px); }
.thanks-card p { color: var(--muted); font-size: 18px; }
.text-link { font-weight: 750; }

.site-footer {
  padding: 34px 0;
  color: var(--muted);
  background: #f1eee7;
  border-top: 1px solid rgba(23, 33, 30, 0.08);
}
.footer-wrap {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
}
.footer-brand { color: var(--ink); font-weight: 750; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px 24px; }
.footer-links a { color: var(--muted); }
.footer-small { width: 100%; margin: 0; font-size: 14px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 42px; }
  .hero-copy { max-width: 760px; }
  .signup-card { max-width: 680px; }
  .message-demo { grid-template-columns: 1fr; }
  .phone-demo { margin: 0; }
}

@media (max-width: 600px) {
  .site-header { height: 62px; }
  .nav-wrap, .hero, .container, .legal-document, .footer-wrap { width: min(100% - 28px, 100%); }
  .nav-note { display: none; }
  .hero { padding: 28px 0 42px; gap: 28px; }
  h1 { font-size: clamp(40px, 12vw, 50px); line-height: 1.01; }
  .hero-lede { margin-top: 16px; font-size: 17px; }
  .price-line { margin-top: 18px; }
  .steps-compact { margin-top: 18px; padding-top: 17px; }
  .steps-compact ol { gap: 8px; }
  .steps-compact li { padding-left: 0; padding-top: 27px; font-size: 13px; }
  .steps-compact li::before { top: 0; }
  .signup-card { padding: 25px 20px; border-radius: 18px; }
  .signup-card::before { left: 20px; }
  .signup-card h2 { font-size: 27px; }
  .form-intro { margin-bottom: 14px; }
  .field { margin-top: 12px; }
  .consent-row { margin: 16px 0; }
  .consent-copy { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-heading { margin-bottom: 30px; }
  .full-steps { grid-template-columns: 1fr; }
  .price-panel { grid-template-columns: 1fr; padding: 34px 24px; }
  .price-panel .button { width: 100%; }
  .phone-demo { padding: 20px 16px; border-radius: 24px; }
  .legal-main { padding: 48px 0 72px; }
  .legal-document h2 { font-size: 25px; }
  .privacy-promise { padding: 20px; font-size: 18px; }
}

@media (max-width: 400px) {
  body { font-size: 16px; }
  h1 { font-size: 40px; }
  .guarantee { font-size: 12px; }
  .signup-card { padding-inline: 18px; }
  .footer-links { gap: 12px 18px; }
}

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