:root {
  --ink: #17212b;
  --muted: #5e6a75;
  --paper: #fffaf2;
  --surface: #ffffff;
  --line: #eadfce;
  --coral: #f0604d;
  --teal: #138f85;
  --yellow: #f6b735;
  --green: #4f9d69;
  --lilac: #7d5cc6;
  --blue: #235789;
  --shadow: 0 22px 55px rgba(23, 33, 43, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 250, 242, 0.9);
  border-bottom: 1px solid rgba(234, 223, 206, 0.9);
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.93rem;
}

.nav a {
  color: var(--muted);
  font-weight: 750;
  text-decoration: none;
}

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

.nav-cta {
  padding: 10px 15px;
  color: #ffffff !important;
  background: var(--ink);
  border-radius: 8px;
}

.hero {
  display: grid;
  align-items: center;
  min-height: calc(92vh - 68px);
  padding: clamp(56px, 8vw, 112px) clamp(18px, 5vw, 76px);
  background:
    linear-gradient(90deg, rgba(255, 250, 242, 0.98) 0%, rgba(255, 250, 242, 0.88) 38%, rgba(255, 250, 242, 0.2) 70%),
    url("assets/hero-kit-papelaria.png") center right / cover no-repeat;
}

.hero-content {
  width: min(620px, 100%);
}

.eyebrow,
.section-kicker,
.panel-label {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 9ch;
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 8vw, 6.9rem);
  line-height: 0.93;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.15;
}

.hero-copy {
  max-width: 58ch;
  margin-bottom: 28px;
  color: #33414c;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 2px solid transparent;
  border-radius: 8px;
  font-weight: 850;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

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

.button-primary {
  color: #ffffff;
  background: var(--coral);
  box-shadow: 0 12px 26px rgba(240, 96, 77, 0.28);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.84);
  border-color: var(--line);
}

.button.full {
  width: 100%;
}

.microcopy,
.notice {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: clamp(58px, 8vw, 110px) 0;
}

.container {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.two-columns {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
}

.text-stack p,
.section-heading p,
.solution-panel p,
.final-cta p {
  color: var(--muted);
  font-size: 1.08rem;
}

.check-list,
.target-list,
.offer-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.target-list li,
.offer-list li {
  position: relative;
  padding-left: 30px;
}

.check-list li::before,
.target-list li::before,
.offer-list li::before {
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #ffffff;
  background: var(--teal);
  content: "✓";
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 20px;
  text-align: center;
}

.section-intro {
  background: #ffffff;
}

.section-solution {
  background: #f3eadc;
}

.solution-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: 32px;
  align-items: stretch;
}

.solution-panel {
  min-height: 340px;
  padding: clamp(28px, 5vw, 54px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.steps-strip {
  display: grid;
  gap: 14px;
}

.steps-strip div {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: center;
  min-height: 74px;
  padding: 14px 18px;
  background: var(--ink);
  border-radius: 8px;
  color: #ffffff;
}

.steps-strip strong {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--yellow);
  border-radius: 50%;
  color: var(--ink);
}

.section-heading {
  width: min(760px, 100%);
  margin-bottom: 34px;
}

.section-heading.compact {
  width: min(680px, 100%);
}

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

.feature-card {
  display: grid;
  align-content: space-between;
  min-height: 170px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(23, 33, 43, 0.08);
}

.feature-card strong {
  display: block;
  margin-bottom: 28px;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
}

.feature-card span {
  color: var(--muted);
  font-weight: 800;
}

.accent-coral {
  border-top: 8px solid var(--coral);
}

.accent-teal {
  border-top: 8px solid var(--teal);
}

.accent-yellow {
  border-top: 8px solid var(--yellow);
}

.accent-ink {
  border-top: 8px solid var(--ink);
}

.accent-lilac {
  border-top: 8px solid var(--lilac);
}

.accent-green {
  border-top: 8px solid var(--green);
}

.section-how,
.section-proof,
.section-faq {
  background: #ffffff;
}

.how-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.how-card {
  min-height: 220px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.how-card span {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--coral);
  font-size: 0.86rem;
  font-weight: 900;
}

.how-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.how-card a {
  color: var(--blue);
  font-weight: 850;
}

.target-list {
  font-size: 1.08rem;
}

.section-bonus {
  background: #edf7f2;
}

.bonus-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.bonus-grid article {
  display: grid;
  align-items: end;
  min-height: 154px;
  padding: 22px;
  border: 1px solid rgba(19, 143, 133, 0.22);
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 850;
  box-shadow: 0 12px 28px rgba(19, 143, 133, 0.09);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.proof-item {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 230px;
  overflow: hidden;
  padding: 18px;
  border-radius: 8px;
  background: #f4ead8;
  border: 1px solid var(--line);
}

.proof-item::before,
.proof-item::after {
  position: absolute;
  content: "";
}

.proof-item::before {
  inset: 28px 30px 64px;
  border: 3px solid currentColor;
  border-radius: 7px;
  opacity: 0.22;
}

.proof-item::after {
  width: 44%;
  height: 20%;
  right: 22px;
  top: 32px;
  border-radius: 6px;
  opacity: 0.3;
}

.proof-item span {
  position: relative;
  z-index: 1;
  font-weight: 850;
}

.proof-invite {
  color: var(--coral);
}

.proof-invite::after {
  background: var(--coral);
}

.proof-box {
  color: var(--teal);
}

.proof-box::after {
  background: var(--teal);
}

.proof-tag {
  color: var(--yellow);
}

.proof-tag::after {
  background: var(--yellow);
}

.proof-letters {
  color: var(--lilac);
}

.proof-letters::after {
  background: var(--lilac);
}

.section-offer {
  background: var(--ink);
  color: #ffffff;
}

.section-offer .section-kicker {
  color: var(--yellow);
}

.offer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 36px;
  align-items: center;
}

.offer-list li {
  color: rgba(255, 255, 255, 0.88);
}

.offer-list li::before {
  background: var(--yellow);
  color: var(--ink);
}

.price-box {
  padding: clamp(26px, 5vw, 44px);
  color: var(--ink);
  background: #ffffff;
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

.old-price {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-weight: 850;
  text-decoration: line-through;
}

.price-box strong {
  display: block;
  margin-bottom: 22px;
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  line-height: 1;
}

.price-box p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.price-box .checkout-note {
  padding: 10px 12px;
  background: #fff2d4;
  border: 1px solid rgba(246, 183, 53, 0.5);
  border-radius: 8px;
  color: #765312;
  font-size: 0.86rem;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 850;
}

details p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

.final-cta {
  text-align: center;
  background: #f5d7cc;
}

.final-cta p {
  width: min(680px, 100%);
  margin: 0 auto 24px;
}

.footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.74);
  background: #111820;
  font-size: 0.9rem;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.footer p {
  margin: 0;
}

@media (max-width: 920px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    min-height: auto;
    padding-top: 78px;
    padding-bottom: 240px;
    background:
      linear-gradient(180deg, rgba(255, 250, 242, 0.98) 0%, rgba(255, 250, 242, 0.9) 54%, rgba(255, 250, 242, 0.08) 100%),
      url("assets/hero-kit-papelaria.png") center bottom / 120% auto no-repeat;
  }

  h1 {
    max-width: 10ch;
  }

  .two-columns,
  .solution-grid,
  .offer-layout {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 620px) {
  .site-header {
    position: static;
  }

  .nav a:not(.nav-cta) {
    display: none;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }

  .hero {
    padding-bottom: 210px;
    background:
      linear-gradient(180deg, rgba(255, 250, 242, 0.99) 0%, rgba(255, 250, 242, 0.95) 62%, rgba(255, 250, 242, 0.18) 100%),
      url("assets/hero-kit-papelaria.png") center bottom / 160% auto no-repeat;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 4.2rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 2.8rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .feature-grid,
  .bonus-grid,
  .proof-grid,
  .how-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .bonus-grid article,
  .proof-item,
  .how-card {
    min-height: 150px;
  }

  .footer .container {
    flex-direction: column;
  }
}