/* ==========================================================
   basic club — landing page B2B
   Paleta e regras conforme brand/brand-book.md
   ========================================================== */

:root {
  --color-brand-charcoal: #323031;
  --color-brand-white: #FFFFFF;
  --color-neutral-graphite: #2B2C2D;
  --color-neutral-light: #E3E3E3;
  --color-neutral-mid: #8C8C8C;

  --font-display: Georgia, 'Times New Roman', serif;
  --font-body: 'Roboto Condensed', 'Arial Narrow', Arial, sans-serif;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 128px;

  --radius: 6px;
  --container: 1200px;
}

/* ---------- Reset básico ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  color: var(--color-brand-charcoal);
  background: var(--color-brand-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

/* ---------- Utilitários ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-neutral-mid);
  margin-bottom: var(--space-2);
}

.eyebrow--light {
  color: var(--color-neutral-light);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
}

h2 {
  font-size: clamp(32px, 5vw, 52px);
}

.section-head {
  max-width: 680px;
  margin-bottom: var(--space-6);
}

.section-head__sub {
  margin-top: var(--space-3);
  font-size: 18px;
  color: var(--color-brand-charcoal);
}

/* ---------- Botões ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid var(--color-brand-charcoal);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-brand-charcoal);
  color: var(--color-brand-white);
}

.btn--light {
  background: var(--color-brand-white);
  color: var(--color-brand-charcoal);
  border-color: var(--color-brand-white);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 15px;
}

.btn--lg {
  padding: 16px 32px;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.icon-wa {
  width: 22px;
  height: 22px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-neutral-light);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-1);
}

.header__logo img {
  width: 120px;
  height: auto;
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-6);
}

.hero__inner {
  display: grid;
  gap: var(--space-5);
  align-items: center;
}

.hero__title {
  font-size: clamp(40px, 6.5vw, 76px);
  margin-bottom: var(--space-3);
}

.hero__sub {
  font-size: 19px;
  max-width: 480px;
  margin-bottom: var(--space-4);
  color: var(--color-brand-charcoal);
}

.hero__media img {
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
}

/* ---------- Produto ---------- */
.product {
  padding-block: var(--space-7);
}

.product__grid {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.product__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.specs {
  display: grid;
  gap: var(--space-4);
  border-top: 1px solid var(--color-neutral-light);
  padding-top: var(--space-5);
}

.specs__item dt {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-neutral-mid);
  margin-bottom: var(--space-1);
}

.specs__item dd {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.3;
}

.polo {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.polo__media img {
  width: 100%;
  border-radius: var(--radius);
}

.polo__text {
  align-self: center;
}

.polo__text h3 {
  font-size: clamp(26px, 3.5vw, 36px);
  margin-bottom: var(--space-2);
}

.polo__text p {
  font-size: 18px;
  max-width: 420px;
}

/* ---------- Algodão egípcio ---------- */
.cotton {
  padding-block: var(--space-7);
}

.cotton__media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* ---------- B2B ---------- */
.b2b {
  background: var(--color-brand-charcoal);
  color: var(--color-brand-white);
  padding-block: var(--space-7);
}

.b2b h2 {
  color: var(--color-brand-white);
}

.b2b__grid {
  display: grid;
  gap: var(--space-5);
}

.b2b__card h3 {
  font-size: 24px;
  margin-bottom: var(--space-2);
}

.b2b__card p {
  color: var(--color-neutral-light);
  max-width: 420px;
}

.b2b__media {
  margin-top: var(--space-6);
}

.b2b__media img {
  width: 100%;
  border-radius: var(--radius);
}

.b2b__media figcaption {
  margin-top: var(--space-2);
  font-size: 14px;
  color: var(--color-neutral-mid);
}

/* ---------- Como funciona ---------- */
.steps {
  padding-block: var(--space-7);
}

.steps__list {
  display: grid;
  gap: var(--space-5);
  list-style: none;
}

.steps__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-brand-charcoal);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.steps__item h3 {
  font-size: 22px;
  margin-bottom: var(--space-2);
}

.steps__item p {
  max-width: 420px;
}

/* ---------- Franqueadoras ---------- */
.partners {
  background: var(--color-neutral-light);
  padding-block: var(--space-7);
}

.partners__grid {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.partners__card {
  background: var(--color-brand-white);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.partners__feature {
  display: grid;
  background: var(--color-brand-white);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.partners__feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.partners__feature-text {
  padding: var(--space-4);
  align-self: center;
}

.partners__feature-text h3 {
  font-size: 26px;
  margin-bottom: var(--space-2);
}

.partners__feature-text p {
  max-width: 420px;
}

.partners__card h3 {
  font-size: 22px;
  margin-bottom: var(--space-2);
}

.client-logos--partners {
  color: var(--color-brand-charcoal);
}

.client-logos img {
  height: 56px;
  width: auto;
}

.client-logos img.logo-lg {
  height: 80px;
}

.client-logos img.logo-md {
  height: 64px;
}

.client-logos img.logo-xl {
  height: 88px;
}

.client-logos img.logo-jicart {
  transform: translateY(4px);
}

.partners .eyebrow {
  color: var(--color-brand-charcoal);
}

/* ---------- Depoimentos ---------- */
.social-proof {
  padding-block: var(--space-7);
}

.testimonials {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.testimonial {
  border: 1px solid var(--color-neutral-light);
  border-radius: var(--radius);
  padding: var(--space-4);
}

.testimonial p {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: var(--space-3);
}

.testimonial cite {
  display: block;
  font-style: normal;
  font-weight: 700;
}

.testimonial span {
  font-size: 14px;
  color: var(--color-neutral-mid);
}

.testimonial--featured {
  border-color: var(--color-brand-charcoal);
}

.proof-gallery {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.proof-gallery figure {
  border-radius: var(--radius);
  overflow: hidden;
}

.proof-gallery img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.testimonial--featured p {
  font-size: 24px;
}

.client-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  list-style: none;
  align-items: center;
  justify-content: center;
  color: var(--color-neutral-mid);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 14px;
}

/* ---------- CTA final ---------- */
.cta-final {
  position: relative;
  overflow: hidden;
  background: var(--color-neutral-graphite);
  color: var(--color-brand-white);
}

.cta-final__media {
  position: absolute;
  inset: 0;
}

.cta-final__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  filter: grayscale(100%);
}

.cta-final__content {
  position: relative;
  padding-block: var(--space-8);
  text-align: center;
}

.cta-final h2 {
  color: var(--color-brand-white);
  margin-bottom: var(--space-3);
}

.cta-final p {
  font-size: 18px;
  color: var(--color-neutral-light);
  max-width: 440px;
  margin: 0 auto var(--space-5);
}

/* ---------- Rodapé ---------- */
.footer {
  background: var(--color-brand-charcoal);
  color: var(--color-neutral-light);
  padding-block: var(--space-6) var(--space-4);
  border-top: 1px solid var(--color-neutral-graphite);
}

.footer__inner {
  display: grid;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.footer__brand img {
  width: 130px;
  margin-bottom: var(--space-2);
}

.footer__tagline {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--color-brand-white);
}

.footer__info p,
.footer__contact p {
  margin-bottom: var(--space-1);
  font-size: 15px;
}

.footer__contact a {
  text-decoration: none;
}

.footer__contact a:hover {
  text-decoration: underline;
}

.footer__legal {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-3);
  font-size: 13px;
  color: var(--color-neutral-mid);
}

/* ---------- Botão flutuante WhatsApp ---------- */
.wa-float {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 60;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-brand-charcoal);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.wa-float svg {
  width: 28px;
  height: 28px;
  fill: var(--color-brand-white);
}

.wa-float.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.wa-float:hover {
  transform: translateY(-2px);
}

/* ---------- Animação de entrada ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ==========================================================
   Responsivo — mobile-first
   ========================================================== */

/* Tablet ≥ 768px */
@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-5);
  }

  .hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-6);
  }

  .hero {
    padding-block: var(--space-7);
  }

  .hero__media img {
    max-height: 640px;
  }

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

  .product__photo--tall {
    grid-column: span 2;
  }

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

  .polo {
    grid-template-columns: 0.9fr 1.1fr;
    gap: var(--space-6);
  }


  .steps__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .b2b__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

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

  .partners__feature {
    grid-template-columns: 1fr 1fr;
  }

  .partners__feature-text {
    padding: var(--space-5);
  }

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

  .proof-gallery {
    grid-template-columns: 1.3fr 1fr;
  }

  .proof-gallery img {
    height: 440px;
  }

  .footer__inner {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Desktop ≥ 1024px */
@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-6);
  }

  .specs {
    grid-template-columns: repeat(4, 1fr);
  }

  .product__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .product__photo--tall {
    grid-column: span 1;
    grid-row: span 1;
  }
}

/* Desktop largo ≥ 1280px — logos dos clientes em uma linha só */
@media (min-width: 1280px) {
  .social-proof .client-logos {
    flex-wrap: nowrap;
    justify-content: space-between;
    gap: 12px;
  }

  .social-proof .client-logos img {
    height: 40px;
  }

  .social-proof .client-logos img.logo-md {
    height: 48px;
  }

  .social-proof .client-logos img.logo-lg {
    height: 64px;
  }

  .social-proof .client-logos img.logo-xl {
    height: 72px;
  }
}