@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;650;700&family=Instrument+Serif:ital@0;1&display=swap");

:root {
  --ink: #18231d;
  --paper: #f4f1e8;
  --mint: #c9f27b;
  --coral: #ff775f;
  --line: rgba(24, 35, 29, 0.18);
  --font-sans: "DM Sans";
  --font-serif: "Instrument Serif";
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans), sans-serif;
}
a { color: inherit; }

main { min-height: 100vh; overflow: hidden; }
.nav {
  width: min(1180px, calc(100% - 48px));
  height: 96px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark {
  font-size: 28px;
  line-height: 1;
  font-weight: 750;
  letter-spacing: -1.7px;
  text-decoration: none;
}
.wordmark span { color: var(--coral); }
.nav-note {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  opacity: 0.65;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links > a { font-size: 13px; font-weight: 650; text-decoration: none; }
.nav-links > a:hover { color: var(--coral); }

.hero {
  width: min(1180px, calc(100% - 48px));
  min-height: 700px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.03fr 0.97fr;
  align-items: center;
  gap: 44px;
  padding: 72px 0 84px;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.eyebrow span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 5px rgba(255, 119, 95, 0.16);
}
h1 {
  max-width: 670px;
  margin: 0;
  font-size: clamp(58px, 7vw, 102px);
  line-height: 0.9;
  letter-spacing: -0.062em;
  font-weight: 700;
}
h1 em {
  font-family: var(--font-serif), serif;
  font-weight: 400;
  color: var(--coral);
}
.lede {
  max-width: 590px;
  margin: 34px 0 36px;
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.55;
  letter-spacing: -0.025em;
  opacity: 0.78;
}
.cta {
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 15px 19px 15px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}
.cta span {
  width: 31px;
  height: 31px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
}
.cta:hover { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

.app-preview {
  position: relative;
  min-height: 540px;
  overflow: visible;
  border: 1px solid var(--ink);
  border-radius: 22px;
  background: #fffdf7;
  box-shadow: 12px 14px 0 var(--ink);
  transform: rotate(1.25deg);
}
.app-bar {
  height: 64px;
  padding: 0 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}
.app-mark, .avatar { display: grid; place-items: center; border-radius: 50%; font-weight: 750; }
.app-mark { width: 32px; height: 32px; background: var(--ink); color: var(--paper); font-family: var(--font-serif), serif; font-size: 23px; }
.avatar { width: 31px; height: 31px; background: var(--mint); font-size: 10px; }
.app-tabs { display: flex; justify-content: center; gap: 22px; font-size: 11px; }
.app-tabs span { opacity: 0.48; }
.app-tabs b { color: var(--coral); }
.reader-layout { min-height: 474px; display: grid; grid-template-columns: 128px 1fr; }
.reader-layout aside { padding: 28px 18px; display: flex; flex-direction: column; gap: 17px; border-right: 1px solid var(--line); font-size: 11px; }
.reader-layout aside span:not(.side-label) { opacity: 0.48; }
.reader-layout aside b { display: flex; align-items: center; justify-content: space-between; }
.reader-layout aside i { padding: 2px 6px; border-radius: 99px; background: var(--mint); font-style: normal; font-size: 9px; }
.side-label { margin-bottom: 4px; font-size: 9px; font-weight: 750; letter-spacing: 0.13em; text-transform: uppercase; color: var(--coral); }
.reader-card { padding: 42px 38px 34px; }
.reader-meta { display: flex; gap: 16px; margin-bottom: 24px; color: var(--coral); font-size: 9px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.reader-card h2 { margin: 0 0 24px; font-family: var(--font-serif), serif; font-size: 39px; line-height: 0.97; font-weight: 400; letter-spacing: -0.035em; }
.reader-card > p { margin: 0 0 24px; font-size: 12px; line-height: 1.7; opacity: 0.62; }
.highlight { padding: 13px 15px; border-left: 3px solid var(--coral); background: rgba(201, 242, 123, 0.26); font-family: var(--font-serif), serif; font-size: 16px; }
.reader-lines { display: grid; gap: 8px; margin-top: 25px; }
.reader-lines span { display: block; height: 5px; border-radius: 4px; background: rgba(24, 35, 29, 0.09); }
.reader-lines span:nth-child(2) { width: 92%; }
.reader-lines span:nth-child(3) { width: 64%; }
.whatsapp-chip { position: absolute; right: -24px; bottom: 24px; width: 238px; padding: 13px 15px; border: 1px solid var(--ink); border-radius: 13px; background: var(--mint); box-shadow: 4px 5px 0 var(--ink); transform: rotate(-2.5deg); }
.whatsapp-chip b { display: block; margin-bottom: 4px; color: var(--coral); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; }
.whatsapp-chip span { font-size: 11px; font-weight: 650; }

.promise {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  padding: 100px max(24px, calc((100vw - 1180px) / 2));
  background: var(--ink);
  color: var(--paper);
  align-items: end;
}
.section-label {
  margin: 0 0 24px;
  color: var(--mint);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.promise h2 {
  margin: 0;
  font-family: var(--font-serif), serif;
  font-size: clamp(45px, 6vw, 78px);
  line-height: 0.96;
  font-weight: 400;
  letter-spacing: -0.045em;
}
.promise > p {
  max-width: 430px;
  margin: 0 0 4px;
  font-size: 19px;
  line-height: 1.55;
  opacity: 0.72;
}

.features {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 94px 0 112px;
}
.feature {
  min-height: 260px;
  padding: 0 26px;
  border-left: 1px solid var(--line);
}
.feature:first-child { padding-left: 0; border-left: 0; }
.feature-number {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 58px;
  border-radius: 50%;
  background: var(--mint);
  font-size: 11px;
  font-weight: 750;
}
.feature h3 { margin: 0 0 13px; font-size: 20px; letter-spacing: -0.035em; }
.feature p { margin: 0; font-size: 14px; line-height: 1.6; opacity: 0.63; }

.flow {
  padding: 96px max(24px, calc((100vw - 1180px) / 2)) 110px;
  background: #e7e2d4;
}
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.flow-grid article { min-height: 250px; padding: 25px; border: 1px solid var(--ink); border-radius: 16px; background: var(--paper); box-shadow: 4px 5px 0 var(--ink); }
.flow-grid article > span { display: inline-block; margin-bottom: 72px; color: var(--coral); font-size: 10px; font-weight: 750; letter-spacing: 0.13em; text-transform: uppercase; }
.flow-grid h3 { margin: 0 0 12px; font-family: var(--font-serif), serif; font-size: 27px; font-weight: 400; letter-spacing: -0.025em; }
.flow-grid p { margin: 0; font-size: 13px; line-height: 1.58; opacity: 0.62; }

.channel {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: end;
  gap: 70px;
  padding: 110px max(24px, calc((100vw - 1180px) / 2));
  background: var(--coral);
  color: var(--ink);
}
.channel .section-label { color: var(--ink); opacity: 0.62; }
.channel h2 { margin: 0; font-family: var(--font-serif), serif; font-size: clamp(48px, 6vw, 76px); line-height: 0.94; font-weight: 400; letter-spacing: -0.045em; }
.channel-copy { display: grid; gap: 18px; }
.channel-copy p { margin: 0; font-size: 17px; line-height: 1.6; }
.channel-copy p:last-child { opacity: 0.67; }

footer {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 40px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
}
.footer-mark { font-size: 23px; }
footer p { margin: 0; text-align: center; font-family: var(--font-serif), serif; font-size: 18px; }
footer > span { text-align: right; font-size: 11px; opacity: 0.55; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 64px; }
  .app-preview { min-height: 520px; transform: none; }
  .promise { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr 1fr; row-gap: 60px; }
  .feature:nth-child(3) { border-left: 0; padding-left: 0; }
  .flow-grid { grid-template-columns: 1fr 1fr; }
  .channel { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .nav, .hero, .features, footer { width: min(100% - 32px, 1180px); }
  .nav { height: 76px; }
  .nav-note, .nav-links > a:first-child { display: none; }
  .hero { min-height: auto; padding: 54px 0 42px; }
  h1 { font-size: 58px; }
  .lede { font-size: 17px; }
  .app-preview { min-height: 445px; margin: 8px 0 18px; border-radius: 16px; box-shadow: 7px 8px 0 var(--ink); }
  .app-tabs { gap: 11px; }
  .reader-layout { min-height: 380px; grid-template-columns: 78px 1fr; }
  .reader-layout aside { padding: 20px 10px; gap: 14px; font-size: 9px; }
  .reader-layout aside i { display: none; }
  .reader-card { padding: 28px 18px; }
  .reader-card h2 { font-size: 30px; }
  .reader-card > p { font-size: 10px; }
  .whatsapp-chip { right: 9px; bottom: -18px; }
  .promise { padding: 74px 20px; }
  .features { grid-template-columns: 1fr; padding: 72px 0 80px; row-gap: 44px; }
  .feature, .feature:nth-child(3) { min-height: auto; padding: 0 0 38px; border-left: 0; border-bottom: 1px solid var(--line); }
  .feature-number { margin-bottom: 26px; }
  .flow { padding: 72px 16px 80px; }
  .flow-grid { grid-template-columns: 1fr; }
  .flow-grid article { min-height: 215px; }
  .flow-grid article > span { margin-bottom: 48px; }
  .channel { padding: 80px 20px; gap: 42px; }
  footer { grid-template-columns: 1fr auto; }
  footer p { display: none; }
}

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