/* ==========================================================================
   NUTRIÇÃO ESPORTIVA — LANDING PAGE
   Identidade: ciência aplicada, performance, confiança, resultados.
   Paleta: azul escuro #010626, azul secundário #171C73,
           azul destaque #0855F2, bege #EDDACA, branco #F2F2F2, preto #000.
   ========================================================================== */

/* ---------- 1. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font: inherit; border: none; background: none; cursor: pointer; }
ul { list-style: none; }

/* ---------- 2. DESIGN TOKENS ---------- */
:root {
  /* cores */
  --color-dark:        #010626;
  --color-secondary:   #171C73;
  --color-accent:      #0855F2;
  --color-beige:       #EDDACA;
  --color-white:       #F2F2F2;
  --color-black:       #000000;

  --color-text:        var(--color-dark);
  --color-text-muted:  #4A4E73;
  --color-border:      rgba(1, 6, 38, 0.08);

  /* tipografia */
  --font-heading: 'Inter', -apple-system, sans-serif;
  --font-body: 'Poppins', -apple-system, sans-serif;

  /* espaçamento */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;

  /* layout */
  --container-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 28px;

  /* sombras quase imperceptíveis */
  --shadow-soft: 0 1px 2px rgba(1, 6, 38, 0.04), 0 8px 24px rgba(1, 6, 38, 0.05);
  --shadow-lift: 0 4px 8px rgba(1, 6, 38, 0.06), 0 20px 40px rgba(1, 6, 38, 0.08);

  /* transições */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.25s var(--ease);
  --transition-med: 0.5s var(--ease);
}

/* ---------- 3. BASE ---------- */
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  font-weight: 300;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.eyebrow--light { color: var(--color-beige); }

/* focus visível */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 4. BOTÕES ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2.1rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}
.btn--primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-lift);
  background: #0a63ff;
}

.btn--ghost {
  border: 1px solid var(--color-border);
  color: var(--color-dark);
}
.btn--ghost:hover {
  background: var(--color-dark);
  color: var(--color-white);
  border-color: var(--color-dark);
}

.btn--large {
  padding: 1.2rem 2.8rem;
  font-size: 1.05rem;
}

/* ---------- 5. HEADER ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(242, 242, 242, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.header.is-scrolled {
  border-bottom-color: var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--color-dark);
}
.logo span { color: var(--color-accent); }

.nav {
  display: flex;
  gap: var(--space-lg);
}
.nav a {
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--color-text-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition-fast);
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
}
.nav a:hover { color: var(--color-dark); }
.nav a:hover::after { width: 100%; }

.header__cta { padding: 0.7rem 1.6rem; font-size: 0.88rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ---------- 6. HERO ---------- */
.hero {
  padding: calc(84px + var(--space-xl)) 0 var(--space-xl);
  overflow: hidden;
  position: relative;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero__title {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  max-width: 15ch;
  margin-bottom: var(--space-sm);
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 42ch;
  margin-bottom: var(--space-md);
  font-weight: 300;
}

.hero__actions { margin-bottom: var(--space-lg); }

.hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__meta-item strong {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-dark);
}
.hero__meta-item span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.hero__meta-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__image-frame {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lift);
  position: relative;
  z-index: 2;
}
.hero__image-frame img {
  width: 100%; height: 100%; object-fit: cover;
}

.hero__graphic {
  position: absolute;
  border-radius: 50%;
  z-index: 1;
}
.hero__graphic--one {
  width: 340px; height: 340px;
  background: var(--color-beige);
  top: -40px; right: -20px;
  opacity: 0.55;
}
.hero__graphic--two {
  width: 180px; height: 180px;
  border: 1px solid var(--color-accent);
  bottom: -30px; left: -10px;
  opacity: 0.3;
}

.hero__card {
  position: absolute;
  bottom: 8%;
  left: -8%;
  background: var(--color-dark);
  color: var(--color-white);
  padding: 1.1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__card-label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-beige);
}
.hero__card-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

/* ---------- 7. SECTIONS (GENERAL) ---------- */
.section { padding: var(--space-xl) 0; }
.section--alt { background: #EAEAE4; }
.section--dark {
  background: var(--color-dark);
  padding: var(--space-xl) 0;
}

.section__head { max-width: 640px; margin-bottom: var(--space-lg); }
.section__title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
}
.section__title--light { color: var(--color-white); }
.section__head--light { max-width: 640px; }

/* ---------- 8. GRIDS ---------- */
.grid { display: grid; gap: var(--space-md); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 9. CARDS · MÉTODO ---------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
  border-color: transparent;
}
.card__index {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.card__title {
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
}
.card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- 10. TAG CARDS · PÚBLICO ---------- */
.tag-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-sm);
  text-align: left;
  border-left: 2px solid var(--color-accent);
  transition: transform var(--transition-med), background var(--transition-med);
}
.tag-card:hover {
  transform: translateY(-4px);
  background: var(--color-dark);
}
.tag-card:hover h3, .tag-card:hover p { color: var(--color-white); }
.tag-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition-med);
}
.tag-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: color var(--transition-med);
}

/* ---------- 11. TIMELINE · COMO FUNCIONA ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 22px;
  left: 5%;
  right: 5%;
  height: 1px;
  background: var(--color-border);
  z-index: 0;
}
.timeline__step { position: relative; z-index: 1; }
.timeline__marker {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: var(--space-sm);
}
.timeline__step h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.timeline__step p { color: var(--color-text-muted); font-size: 0.9rem; }

/* ---------- 12. DIFERENCIAIS (CHECK LIST) ---------- */
.grid--check { gap: var(--space-md) var(--space-lg); }
.check-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 400;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(242, 242, 242, 0.1);
}
.check-mark {
  color: var(--color-beige);
  font-family: var(--font-heading);
  font-weight: 700;
}

/* ---------- 13. DEPOIMENTOS ---------- */
.testimonial {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
}
.testimonial:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift); }
.testimonial__text {
  font-style: italic;
  color: var(--color-text);
  font-size: 0.98rem;
}
.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.testimonial__author img {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
}
.testimonial__author div { display: flex; flex-direction: column; }
.testimonial__author strong { font-size: 0.92rem; }
.testimonial__author span { font-size: 0.8rem; color: var(--color-text-muted); }

/* ---------- 14. SOBRE ---------- */
.about__inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-lg);
  align-items: center;
}
.about__image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
}
.about__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  font-size: 1rem;
}

/* ---------- 15. CTA FINAL ---------- */
.cta-final {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-secondary) 100%);
  padding: var(--space-xl) 0;
}
.cta-final__inner {
  text-align: center;
  max-width: 640px;
}
.cta-final__title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}
.cta-final__subtitle {
  color: var(--color-beige);
  font-size: 1.05rem;
  margin-bottom: var(--space-lg);
  font-weight: 300;
}

/* ---------- 16. FOOTER ---------- */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--space-lg) 0 var(--space-md);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-lg);
  align-items: start;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(242, 242, 242, 0.1);
  margin-bottom: var(--space-sm);
}
.logo--footer { display: block; margin-bottom: var(--space-xs); color: var(--color-white); }
.footer__brand p { color: rgba(242, 242, 242, 0.6); font-size: 0.88rem; }
.footer__links { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer__links a { font-size: 0.9rem; color: rgba(242, 242, 242, 0.8); transition: color var(--transition-fast); }
.footer__links a:hover { color: var(--color-beige); }
.footer__legal {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  text-align: right;
  font-size: 0.8rem;
  color: rgba(242, 242, 242, 0.5);
}

/* ---------- 17. WHATSAPP FLUTUANTE ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lift);
  z-index: 90;
  transition: transform var(--transition-fast);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ---------- 18. ANIMAÇÕES (SCROLL REVEAL) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--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; }
  .btn, .card, .tag-card, .testimonial, .whatsapp-float { transition: none; }
}

/* ---------- 19. RESPONSIVIDADE ---------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); row-gap: var(--space-lg); }
  .timeline::before { display: none; }
  .about__inner { grid-template-columns: 1fr; }
  .about__image { max-width: 420px; margin-inline: auto; }
}

@media (max-width: 860px) {
  .nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 84px;
    left: 0; right: 0;
    background: var(--color-white);
    padding: var(--space-md);
    gap: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-toggle { display: flex; }
  .header__cta { display: none; }

  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { order: -1; margin-bottom: var(--space-md); }
  .hero__title { max-width: none; }
  .hero__card { left: 4%; }

  .grid--3 { grid-template-columns: 1fr; }
  .grid--check { grid-template-columns: 1fr; }

  .footer__inner { grid-template-columns: 1fr; text-align: left; }
  .footer__legal { text-align: left; }
}

@media (max-width: 520px) {
  :root { --space-xl: 4.5rem; --space-lg: 2.5rem; }
  .hero { padding-top: calc(72px + var(--space-lg)); }
  .hero__image-frame { max-width: 320px; }
  .hero__meta { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
  .hero__meta-divider { display: none; }
}